Manual de Servicio Incubadora OHMEDA OHIO CARE PLUS

 

®

®

Ohio  Care Plus Series 1000/2000 Incubator Service Manual

   1    0    0  .    3    2  .    I

   C

 

User Responsibility This Product will perform in conformity with the description thereof contained in this operating manual and accompanying labels and/or inserts, when assembled, operated, maintained and repaired in accordance with the instructions provided. This Product must be checked periodically. A defective Product should not be used. Parts that are broken, missing, plainly worn, distorted or contaminated should be replaced immediately. Should such repair or replacement become necessary, Ohmeda recommends that a telephone or written request for service advice be made to the nearest Ohmeda Regional Service Center. This Product or any of its parts should not be repaired other than in accordance with written instructions provided by Ohmeda and by Ohmeda trained personnel. The Product must not be altered without Ohmeda’s prior written approval. The user of this Product shall have the sole responsibility for any malfunction which results from improper use, faulty maintenance, improper repair, repair, damage or alteration by b y anyone other than Ohmeda. CAUTION: 

ii

w

Federal law in the USA and Canada restricts this device to sale by or on the order of a licensed medical practitioner. practitioner.

6600-0292-000 102 

 

Important The information contained in this service manual pertains only to those models of products which are marketed by Ohmeda as of the eective date of this manual or the latest revision thereof. This service manual was prepared for exclusive use by Ohmeda service personnel in light of their training and experience as well as the availability to them of parts, proper tools and test equipment. Consequently, Ohmeda provides this service manual to its customers purely as a business convenience and for the customer’s general information only without warranty of the results with respect to any application of such information. Furthermore, because of the wide variety of circumstances under which maintenance and repair activities may be performed and the unique nature of each individual’s own experience, capacity, and qualications, the fact that a customer has received such information from Ohmeda does not imply in anyway that Ohmeda deems said individual to be qualied to perform any such maintenance or repair service. Moreover, Moreover, it should not be b e assumed that every acceptable accep table test and safety procedure or method, precaution, tool, equipment or device is referred to within, or that abnormal or unusual circumstances, may not warrant or suggest dierent or additional procedures or requirements. This manual is subject to periodic review, update and revision. Customers are cautioned to obtain and consult the latest revision before undertaking any service of the equipment. CAUTION:  

w

Servicing of this product in accordance with this service manual should never be undertaken in the absence of proper tools, test equipment and the most recent revision to this service manual which is clearly and thoroughly understood.

s  This static control control precaution precaution symbol appears throughout throughout this manual.

When this symbol appears next to a procedure in this manual, static control precautions MUST be observed. Use the static control work station (Stock No. 0175-2311-000) to help ensure that static charges are safely conducted to ground and not through static sensitive devices.

Technical Tech nical Competence

The procedures described in this service manual should be performed by trained and authorized personnel only. Maintenance should only be undertaken by competent individuals who have a general knowledge of and experience with devices of this nature. No repairs should ever be undertaken or attempted by anyone not having such qualications. Genuine replacement parts manufactured or sold by Ohmeda must be used for all repairs. Read completely through each step in every procedure before starting the procedure; any exceptions may result in a failure to properly and safely complete the attempted procedure.

 

6600-0292-000 102 

iii

 

Denitions Note: A note provides additional information to clarify a point in the text. Important: An Important statement is similar to a note, but is used for greater emphasis. CAUTION: A CAUTION statement is used when the possibility of damage to the equipment exists. WARNING: A WARNING statement is used when the possibility of injury to the patient or the operator exists. Accuracy: As stated in the performance specications, the assigned accuracy of the equipment; including all the system components from the sensors to the display. Air Control Mode: Manual mode of operation. The interior incubator temperature is maintained at the air control temperature. Desired Environmental Temperature (DET): The air temperature required to maintain the infant’s temperature at the patient control temperature (patient control mode). Incubator Temperature: The air temperature measured at a point 10 cm above the mattress. Patient Control Mode: Servo mode of operation. The incubator changes the DET to maintain the desired patient skin temperature. Patient Probe: The Ohio patient temperature probe, model LA003, or disposable probe LA005. Temperature Rise Time: The time required for the incubator temperature to rise 10°C. Temperature Equilibrium: The condition where the average incubator temperature does not vary by more than 0.2°C in a one hour period. Temperature Variability: The maximum dierence between the incubator temperature and the average incubator temperature at equilibrium. Temperature Overshoot: The number of degrees by which the maximum incubator temperature exceeds the average incubator temperature at temperature equilibrium following a change in the air control temperature (air control mode). m 

iv

Type B Electrical equipment

 x 

Protective ground

y 

Functional Ground

~

Alternating Current (AC)

s 

Static Control Precaution

6600-0292-000 102 

 

Table of Contents Important Technical Competence .............................................................................................................................iii

Precautions Warnings ................................................................................................................. ........................................................................................................................................................ ....................................... xi Cautions ..................................................................................................................... ......................................................................................................................................................... .................................... xii

1/Functional Description 1.1 Control Board ............................................................................................................... ..................................................................................................................................... ......................1-1 1-1 A. Microprocessor.................................................................................................................. .........................................................................................................................1.......1-3 3 B. SRAM & EPROM .........................................................................................................................1-6 C. Over temperature & Air_Display Sensor  Sensor .......................................................................1-6 ....................................................................... 1-6 D. Power Supply Circuitry.......................................................................................................... 1-7 E. Heater Control ...................................................................................................................... ...........................................................................................................................1.....1-8 8 F. Analog Inputs..................................................................................................... .......................................................................................................................... ..................... 1-10 G. Watchdog Timer ............................................................................................................... ................................................................................................................... .... 1-10 H. Audible Alarm......................................................................................................................... 1-11 I. A/D Converter Converter .................................................................................................... .......................................................................................................................... ...................... 1-11 1.2 Display Board................................................................................................................ .................................................................................................................................. .................. 1-13 2/Set Up and Checkout 2.1 Mounting the Care Plus on the cabinet ................................................................................2-1 2.2 Checkout Procedure ......................................................................................................................2-2 A. Mechanical checks .................................................................................................................2-2 B. Accessory checks ....................................................................................................................2-4 C. Controller checks ............................................................................................................. .....................................................................................................................2........2-6 6 D. Operational checks ...................................................................................................... ............................................................................................................. ....... 2-10

 

6600-0292-000 102 

v

 

Table of Contents 3/Calibration and Adjustment 3.1 Maintenance schedule ..................................................................................................................3-1 3.2 Special Tools and Equipment .....................................................................................................3-2 3.3 Calibration Loop (background information) ........................................................................3-3 3.4 Calibration Procedures  Procedures ..................................................................................................................3........................................................................................................... .......3-3 3 A. Preparation ................................................................................................................................3-3 B. Check Voltage Supplies ........................................................................................................3-5 C. Brightness.....................................................................................................................3-6 ..................................................................................................................3-5 D. Display Alarm Frequency E. Line Voltage Compensation ................................................................................................ 3-7 F. Analog to Digital Converter (ADC) ..................................................................................... 3-7 G. Alarm Volume ...........................................................................................................................3-8 H. Air Safety Circuit Calibration (High Air Temperature Alarm)................................3................................3-9 9 I. Fan Sensor Adjustment ..........................................................................................................3-9 J. Thermal Switch Operation ................................................................................................3-10 K. Setting the Patient Temperature Alarm Threshold ...............................................3-10 L. Setting the Maximum Patient Control Temperature ............................................3-10 M. Closure....................................................................................................................... ...................................................................................................................................... ............... 3-10 3.5 Electrical Safety Check ...............................................................................................................3-11 A. Leakage Current ...................................................................................................................3-11 B. Ground Resistance Check ................................................................................................3-11

4/Troubleshooting 4.1 Alarms and Error Codes ................................................................................................................4-1 A. Front Panel Alarms .................................................................................................................4-2 B. Error Codes .................................................................................................................................4-5 4.2 Power Up Tests............................................................................................................. ............................................................................................................................... .................. 4-10 4.3 On Line Testing .............................................................................................................. ............................................................................................................................... ................. 4-10 4.4 On Demand Testing .....................................................................................................................4-11 A. RAM Memory Display Loop ..............................................................................................4-11 B. Switch Activated Displays.................................................................................................4-12 Displays.................................................................................................4-12 4.5 Test Test Points ..................................................................................................... ........................................................................................................................................ ................................... 4-13

vi

6600-0292-000 102 

 

Table of Contents 5/Repair Procedures 5.1 Hood Repair ........................................................................................................................................5-1 5.2 Front Door Repair ..................................................................................................... ............................................................................................................................. ........................5-5 5-5 5.3 Air Temperature Sensor Replacement ................................................................................... 5-6 5.4 Base Platform Cover Replacement  Replacement .......................................................................................... .......................................................................................... 5-8 5.5 Controller Access .............................................................................................................................5-8 s5.6 Control Board Replacement ...................................................................................................5-8 s5.7 Display Board Replacement ................................................................................................ 5-10

5.8 Solid State Relay Replacement ............................................................................................... 5-13 5.9 Heater and/or Heater Gasket Replacement ....................................................................5-14 5.10 Thermal Switch Replacement............................................................................................... Replacement............................................................................................... 5-16 5.11 Fan Sensor Replacement ........................................................................................................ 5-16 5.12 Fan Motor Replacement  Replacement .......................................................................................................... .......................................................................................................... 5-18 5.13 Battery Replacement........................................................................................................... ................................................................................................................ ..... 5-20 5.14 Cabinet Caster Replacement ................................................................................................ 5-20

6/Illustrated Parts 6.1 Hood Components ..........................................................................................................................6-1 6.2 Hood Latch Assembly, Compartment Probe and an d Related Items ...............................6...............................6-5 5 6.3 Base Platform Components ........................................................................................................6-6 6.4 Cabinet Components ............................................................................................................. .................................................................................................................. ..... 6-10 6.5 Controller Components ....................................................................................................... .............................................................................................................. ....... 6-14 6.6 Board Components .................................................................................................................. ...................................................................................................................... .... 6-23 6.7 Label Sets....................................................................................................... Sets.......................................................................................................................................... ................................... 6-25

7/Schematics Appendix Patient Temperature Probe and Air Temperature Sensor Characteristics ...................A-1 Temperature Conversion Chart ........................................................................................................ ........................................................................................................A-2 A-2 CarePlus Specications .......................................................................................................................A-2 Specications .......................................................................................................................A-2 A. Electrical specications specications ......................................................................................................A-2  ......................................................................................................A-2 ................................................................................................ A-3 B. Performance specications  specications ................................................................................................A-3 C. Safety specications  specications ..............................................................................................................A-5 .............................................................................................................. A-5 D. Environmental specications ............................................................................................A-6 specications ............................................................................................A-6 E. Electromagnetic Compatibility (EMC) Specications ...............................................A-6 Specications ...............................................A-6 F. Mechanical specications  specications ....................................................................................................A-6 .................................................................................................... A-6

 

6600-0292-000 102 

vii

 

List of Illustrations 1/Functional Description Figure 1-1

Control Circuitry Block Diagram ......................................................................... .........................................................................1-2 1-2

Figure 1-2

Power Supply Circuitry ............................................................................................ 1-7

Figure 1-3

Heater Control and Monitoring Circuits .......................................................... ..........................................................1-9 1-9

Figure 1-4

Display Board Block Diagram ........................................................................... 1-14

2/Set Up and Checkout Figure 2-1

Mounting the CarePlus Incubator on a cabinet .......................................... ..........................................2-1 2-1

Figure 2-2

Operating Controls, Indicators and Connectors ......................................... .........................................2-5 2-5

Figure 2-3

Control Panel ...................................................................................................... ...............................................................................................................2.........2-7 7

3/Calibration and Adjustments Figure 3-1

Cable for Variable Resistance Box .................................................................... ....................................................................3-2 3-2

Figure 3-2

Control Board Test Points and Potentiometers ........................................... ...........................................3-4 3-4

Figure 3-3

Display Brightness Adjustment........................................................................... ...........................................................................3-6 3-6

4/Troubleshooting Figure 4-1

Air Temperature Sensor Connector (end view) ............................................ ............................................4-7 4-7

5/Repair Procedures

viii

Figure 5-1

Remove the Inner Wall ........................................................................................... 5-2

Figure 5-2

Remove the Outer Hood ........................................................................................ 5-3

Figure 5-3

Remove Hood Hardware ....................................................................................... 5-4

Figure 5-4

Front Door Disassembly ......................................................................................... 5-5

Figure 5-5

Base Platform Cover Removal Removal.............................................................................5-7 .............................................................................5-7

Figure 5-6

Controller Interior ...................................................................................................... 5-9

Figure 5-7

Replace the Display Board ................................................................................. 5-10

Figure 5-8

Display Panel Grounds Controllers ............................................................... 5-11

Figure 5-9

Display Panel Controllers.................................................................................... 5-12

Figure 5-10

Heater,, Thermal Switch and Fan Sensor Replacement ........................ 5-15 Heater

Figure 5-11

Fan Motor Replacement .................................................................................... 5-18

6600-0292-000 102 

 

List of Illustrations 6/Illustrated Parts Figure 6-1

Hood Frame and Hardware ................................................................................. .................................................................................6-1 6-1

Figure 6-2

Hand Hole Assembly................................................................................................ Assembly................................................................................................6-2 6-2

Figure 6-3

Iris Porthole Assembly............................................................................................. 6-3

Figure 6-4

Front Door and Inner Wall Assembly ............................................................... ...............................................................6-4 6-4

Figure 6-5

Incubator Assembly, Filter and Hood Latch.................................................. Latch..................................................6-5 6-5

Figure 6-6 Figure 6-7

Base Platform, Humidier and Cover Assembly Assembly  ......................................... .........................................6-7 6-7 Base Platform Assembly ........................................................................................ 6-8

Figure 6-8

Casters and Base ................................................................................................... 6-11

Figure 6-9

Cabinet Parts ..................................................................................................... ............................................................................................................ ....... 6-12

Figure 6-10

I.V.. Pole and Bumpers ........................................................................................... 6-13 I.V

Figure 6-11

Motor,, Fan Motor Fan Sensor, Sensor, Circuit Circuit Breaker and Transformer Transformer Assembly ....... 6-15

Figure 6-12

Back Panel ........................................................................................................... ................................................................................................................. ...... 6-17

Figure 6-13

Controller Chassis and Fan Assembly .......................................................... 6-19

Figure 6-14

Cover Assembly....................................................................................................... 6-21

Figure 6-15 Figure 6-16

Control Panel Assembly....................................................................................... 6-23 Display Board ........................................................................................................... 6-25

Figure 6-17

Labels...................................................................................................... ........................................................................................................................... ..................... 6-26

Figure 7-1a

Control Board Schematic (page 1 of 7) ........................................................... ...........................................................7-1 7-1

Figure 7-1b

Control Board Schematic (page 2 of 7) ........................................................... ...........................................................7-2 7-2

Figure 7-1c

Control Board Schematic (page 3 of 7) ........................................................... ...........................................................7-3 7-3

Figure 7-1d

Control Board Schematic (page 4 of 7) ........................................................... ...........................................................7-4 7-4

Figure 7-1e

Control Board Schematic (page 5 of 7) ........................................................... ...........................................................7-5 7-5

Figure 7-1f

Control Board Schematic (page 6 of 7) ........................................................... ...........................................................7-6 7-6

Figure 7-1g

Control Board Schematic (page 7 of 7) ........................................................... ...........................................................7-7 7-7

Figure 7-2a

Display Board Schematic (page 1 of 2) ........................................................... ...........................................................7-8 7-8

Figure 7-2b

Display Board Schematic (page 2 of 2) ........................................................... ...........................................................7-9 7-9

Figure 7-3

Wiring Diagram ....................................................................................................... 7-10

Figure 7-4

Controller Plate Diagram .................................................................................... 7-11

7/Schematics

 

6600-0292-000 102 

ix

 

Notes

x

6600-0292-000 102 

 

Precautions wWarnings Two people are required to lift the Care Plus Incubator. Incubator. Follow safe lifting techniques to avoid injury. After completing a repair, the appropriate calibration procedure must be performed. After completing any portion of the calibration and adjustment procedures, perform the Checkout Procedure to make sure that the Care Plus Incubator is operating correctly. In addition, a nal Electrical Safety Check , section 3.5, must be performed. Record the information for future reference. Disconnect the power to the incubator for the mechanical portion of the Checkout Procedure. Use extreme care while performing calibration and adjustment procedures, or while working on the Care Plus Incubator with power connected. An electrical shock hazard does exist; be certain to observe all standard safety precautions. Before any disassembly or repair, repair, disconnect the electrical e lectrical supply and any gas supply connections. Also remove any accessories. Do not perform per form any service or maintenance with the power applied unless specically told to do so in the procedure. If a system failure alarm occurs, the unit must be removed from use until it has been serviced. Disconnect power to the incubator and allow the heater to cool adequately before servicing or cleaning to avoid the danger of a burn. Never oil or grease oxygen equipment unless a lubricant that is made and approved for this type of service is used. Oils and grease oxidize readily, and in the presence of oxygen, will burn violently. Vac Kote® is the oxygen service lubricant recommended (Stock No. 6700-0092-200). Two people are required to safely replace a caster caster.. Remove the incubator and a nd all accessory equipment from the cabinet before replacing a caster. The humidier plugs must be installed for proper incubator operation, if you do not plan to use the humidier. Safely mounting or dismounting the Care Plus Incubator requires two people. Remove the controller unit before mounting or dismounting the incubator. incubator. If mounting hardware is not securely fastened, the incubator could tip o or the cabinet. The patient probe is not isolated from the earth ground. Any additional equipment used with the Care Plus must comply with UL 544, CSA 22.2, IEC 601 and VDE 750.

® Vac Kote is a Registered trademark of Ball Brothers Corp.

 

6600-0292-000 102 

xi

 

Precautions wCautions Servicing of this product in accordance with this service manual should never be undertaken in the absence of proper tools, test equipment and the most recent revision of this service manual which is clearly and thoroughly understood. s  This static control precaution symbol appears throughout this manual.

When this symbol appears next to a procedure in this manual, static control precautions MUST be observed. Use the static control work station (Stock No. 0175-2311-000) to help ensure that static charges are safely conducted to ground and not through static sensitive devices.

Use the Static Control Work Station (Stock No. 0175-2311-000) to help ensure that static charges are safely conducted to ground. The Velostat material is conductive. Do not place electrically powered circuit boards on it. When handling the controller controller,, avoid bumping the fan or the heater. If these items are knocked out of alignment, the fan can grate against either the heater or the base. Insulation on the electrical wiring can deteriorate with age. When performing the Checkout Procedure, check for brittle or deteriorated de teriorated insulation on the power cord. Make sure the control board connectors are properly aligned before applying power. If gaskets are not installed properly, water can leak in during cleaning and damage the electronics.

xii

6600-0292-000 102 

 

ПРЕДУПРЕЖДЕНИЕ Това упътване за работа е налично само на английски език. (BG)

• • •

Ако доставчикът доставчикът на услугата услугата на клиента изиска друг език, език, задължение задължение на клиента е да осигури превод. Не използвайте използвайте оборудване оборудването, то, преди да сте се консултирали консултирали и разбрали разбрали упътването упътването за работа. Неспазването на това предупрежде предупреждение ние може да доведе доведе до нараняване на доставчика доставчика на услугата, оператора или пациентa в резултат на токов удар, механична или друга опасност.

警告 本维修手册仅提供英文版本。 (ZH-CN)

• • •

如果客户的维修服务人员需要非英文版本，则客户需自行提供翻译服务。 未详细阅读和完全理解本维修手册之前，不得进行维修。 忽略本警告可能对维修服务人员、操作人员或患者造成电击、机械伤害或其他形式的伤 害。

警告 (ZH-HK)

(ZH-TW)

本服務手冊僅提供英文版本。 • 倘若客戶的服務供應商需要英文以外之服務手冊，客戶有責任提供翻譯服務。 • 除非已參閱本服務手冊及明白其內容，否則切勿嘗試維修設備。 • 不遵從本警告或會令服務供應商、網絡供應商或病人受到觸電、機械性或其他的危險。 警告 本維修手冊僅有英文版。 • 若客戶的維修廠商需要英文版以外的語言，應由客戶自行提供翻譯服務。 • 請勿試圖維修本設備，除非 您已查閱並瞭解本維修手冊。 • 若未留意本警告，可能導致維修廠商、操作員或病患因觸電、機械或其他危險而受傷。 UPOZORENJE

(HR)

Ovaj servisni priručnik dostupan je na engleskom jeziku. • Ako davatelj davatelj usluge klijenta klijenta treba treba neki neki drugi jezik, klijent je dužan dužan osigurati osigurati prijevod. prijevod. • Ne pokušavajte pokušavajte servisirati opremu ako niste u potpunosti potpunosti pročitali pročitali i razumjeli ovaj servisni priručnik. • Zanemarite li ovo upozorenje, može doći doći do ozljede davatelja usluge, operatera operatera ili pacijenta uslijed strujnog udara, mehaničkih ili drugih rizika.

 

VÝSTRAHA Tento provozní návod existuje pouze v anglickém jazyce. (CS)

•

V případě, případě, že externí služba služba zákazníkům zákazníkům potřebuje potřebuje návod návod v jiném jazyce, jazyce, je zajištění překladu překladu do odpovídajícího jazyka úkolem zákazníka. • Nesnažte se o údržbu tohoto tohoto zařízení, zařízení, aniž byste byste si přečetli tento provozní provozní návod návod a pochopili  jeho obsah. •

V případě případě nedodržování nedodržování této výstrahy výstrahy může dojít dojít k poranění pracovníka prodejního servisu, obslužného personálu nebo pacientů vlivem elektrického proudu, respekt respektive ive vlivem mechanických či jiných rizik.

ADVARSEL Denne servicemanual ndes kun på engelsk. (DA)

• • •

Hvis en kundes tekniker tekniker har brug for et andet sprog end engelsk, engelsk, er det det kundens ansvar at sørge for oversættelse oversættelse.. Forsøg ikke at at servicere servicere udstyret udstyret uden at at læse og forstå forstå denne denne servicemanual. servicemanual. Manglende overholdelse af denne advarsel kan medføre medføre skade skade på grund af elektrisk stød, mekanisk eller anden fare for teknikeren, operatøren operatøren eller patienten.

WAARSCHUWING Deze onderhoudshandleiding is enkel in het Engels verkrijgbaar. (NL)

• • •

Als het onderhoudsper onderhoudspersoneel soneel een een andere andere taal vereist, dan is de klant verantwoor verantwoordelijk delijk voor voor de vertaling ervan. Probeer de apparatuur niet te onderhou onderhouden den alvorens deze onderhoud onderhoudshandleidi shandleiding ng werd geraadpleegd en begrepen is. Indien deze deze waarschuwing waarschuwing niet wordt wordt opgevolgd, opgevolgd, zou het onderhoudspers onderhoudspersoneel, oneel, de de operator operator of een patiënt gewond kunnen raken als gevolg van een elektrische schok, mechanische of andere gevaren.

WARNING: This service manual is available in English only. (EN)

• • •

Ifresponsib a customer’s requires require s a language other than than English, it is the customer’s customer’s responsibility ility toservice provideprovider translation services. Do not attempt to service the equipment equipment unless unless this service manual manual has been consulted consulted and and is understood. Failure to heed this warning may result in injury to the service provider, provider, operator, operator, or patient from electric shock, mechanical hazards, or other hazards.

 

HOIATUS See teenindusjuhend on saadaval ainult inglise in glise keeles (ET)

• • •

Kui klienditeeninduse klienditeeninduse osutaja nõuab juhendit juhendit inglise keelest erinevas keeles, vastutab klient tõlketeenuse osutamise eest. Ärge üritage seadmeid teenindada enne eelnevalt eelnevalt käesoleva teenindusjuhendiga tutvumist ja sellest aru saamist. Käesoleva hoiatuse eiramine võib põhjustada teenuseosutaja, operaator operaatorii või patsiendi vigastamist elektrilöögi, elektrilöögi, mehaanilise või muu ohu tagajärjel.

VAROITUS Tämä huolto-ohje on saatavilla vain englanniksi. (FI)

• • •

Jos asiakkaan huoltohenkilöstö vaatii muuta kuin englanninkielistä materiaalia, tarvittavan käännöksen hankkiminen on asiakkaan vastuulla. Älä yritä yritä korjata korjata laitteistoa laitteistoa ennen kuin olet varmasti varmasti lukenut ja ymmärtänyt tämän huoltohuoltoohjeen. Mikäli tätä varoitusta ei noudateta, noudateta, seurauksena voi olla huoltohenkilöstön, huoltohenkilöstön, laitteiston käyttäjän tai potilaan vahingoittuminen sähköiskun, mekaanisen vian tai muun vaaratilanteen vuoksi.

ATTENTION Ce manuel d’installation et de maintenance est disponible uniquement en anglais. (FR)

• • •

Si le technicien d’un client a besoin de ce manuel dans une langue autre autre que l’anglais, il incombe au client de le faire traduire. Ne pas pas tenter tenter d’intervenir sur les équipements tant que ce manuel manuel d’installation d’installation et de maintenance n’a pas été consulté et compris. Le non-respect non-respect de cet cet avertissement avertissement peut peut entraîner entraîner chez le technicien, l’opérateur ou le patient des blessures dues à des dangers électriques, mécaniques ou autres.

WARNUNG Diese Serviceanleitung existiert nur in englischer Sprache. (DE)

• • •

Falls ein fremder ein fremder Kundendienst Kundendienst eine asorgen. ndere Sprache benötigt, ist es es Aufgabe Aufgabe des des Kunden Kunden für eine entsprechende Übersetzung zu andere Versuchen Sie nicht diese diese Anlage Anlage zu warten, warten, ohne ohne diese diese Serviceanleitung Serviceanleitung gelesen und verstanden zu haben. Wird diese Warnung nicht beachtet, beachtet, so kann kann es zu Verletzungen Verletzungen des Kundendienstte Kundendiensttechnikers, chnikers, des Bedieners oder des Patienten durch Stromschläge, Stromschläge, mechanische oder sonstige Gefahren kommen.

 

ΠΡΟΕΙΔΟΠΟΙΗΣΗ Το παρόν εγχειρίδιο σέρβις διατίθεται μόνο στα αγγλικά. (EL)

• • •

Εάν ο τεχνικός σέρβις ενός πελάτη πελάτη απαιτεί το παρόν παρόν εγχειρίδιο εγχειρίδιο σε γλώσσα εκτός των αγγλικών, αποτελεί ευθύνη του πελάτη να παρέχει τις υπηρεσίες μετάφρασης. Μην επιχειρήσετε επιχειρήσετε την εκτέλεση εργασιών σέρβις στον εξοπλισμό εξοπλισμό αν δεν έχετε έχετε συμβουλευτεί συμβουλευτεί και κατανοήσει το παρόν εγχειρίδιο σέρβις. Αν δεν προσέξετε την προειδοποίηση προειδοποίηση αυτή, ενδέχεται ενδέχεται να προκληθεί προκληθεί τραυματισμός στον τεχνικό σέρβις, στο χειριστή ή στον ασθενή από ηλεκτροπληξία, μηχανικούς ή άλλους κινδύνους.

FIGYELMEZTETÉS Ezen karbantartási kézikönyv kizárólag angol nyelven érhető el. (HU)

• • •

Ha a vevő szolgáltatója szolgáltatója angoltól eltérő eltérő nyelvre nyelvre tart tart igényt, akkor a vevő felelőssége felelőssége a fordítás fordítás elkészíttetése. Ne próbálja elkezdeni használni a berendezés berendezéstt , amíg a karbantartási kézikönyvben leírtakat nem értelmezték. Ezen gyelmeztetés gyelmeztetés gyelmen kívül hagyása hagyása a szolgáltató, működtető vagy a beteg beteg áramütés, áramütés, mechanikai vagy egyéb veszélyhelyzet miatti sérülését eredménye eredményezheti. zheti.

AÐVÖRUN Þessi þjónustuhandbók er aðeins fáanleg á ensku. (IS)

• • •

Ef að þjónustuveitand þjónustuveitandii viðskiptamanns viðskiptamanns þarfnast þarfnast annas annas tungumáls tungumáls en ensku, er það það skylda skylda viðskiptamanns að skaa tungumálaþjónustu. Reynið ekki að afgreiða tækið nema að þessi þessi þjónustuhandbók þjónustuhandbók hefur verið verið skoðuð skoðuð og skilin. Brot á sinna þessari þessari aðvörun aðvörun getur leitt til meiðsla á þjónustuveitanda þjónustuveitanda,, stjórnanda eða sjúklings sjúklings frá raosti, vélrænu eða öðrum áhættum.

AVVERTENZA Il presente manuale di manutenzione è disponibile soltanto in lingua inglese. (IT)

•

Se un addetto alla manutenzione manutenzione richiede il manuale in una lingua lingua diversa, diversa, il cliente cliente è tenuto a

•

provvedere direttamente alla traduzione. Procederee alla Proceder manutenzione dell’apparecchiatura dell’app arecchiatura solo dopo dopo aver aver consultato consultato il presente manuale ed averne compreso il contenuto. Il mancato mancato rispetto rispetto della della presente presente avvertenza potrebb potrebbee causare causare lesioni lesioni all’addetto all’addetto alla manutenzione, all’operatore all’operatore o ai pazienti provocate provocate da scosse elettriche, urti meccanici o altri rischi.

•

  このサービスマニュアルには英語版しかありません。 (JA)

• • •

サービスを担当される業者が英語以外の言語を要求される場合、翻訳作業はその業者の 責任で行うものとさせていただきます。 このサービスマニュアルを熟読し理解せずに、装置のサービスを行わないでください。 この警告に従わない場合、サービスを担当される方、操作員あるいは患者 さんが、感電 や機械的又はその他の危険により負傷する可能性があります。

 

경고 본 서비스 매뉴얼은 영어로만 이용하실 수 있습니다. (KO)

• • •

고객의 서비스 제공자가 영어 이외의 언어를 요구할 경우, 번역 서비스를 제공하는 것은 고객의 책임입니다. 본 서비스 매뉴얼을 참조하여 숙지하지 않은 이상 해당 장비를 수리하려고 시도하지 마십시오. 본 경고 사항에 유의하지 않으면 전기 쇼크, 기계적 위험, 또는 기타 위험으로 인해 서비스 제공자, 사용자 또는 환자에게 부상을 입힐 수 있습니다.

BRĪDINĀJUMS Šī apkopes rokasgrāmata ir pieejama tikai angļu valodā. (LV)

• • •

Ja klienta apkopes sniedzējam nepieciešama informācija citā citā valodā, valodā, klienta klienta pienākums pienākums ir nodrošināt tulkojumu. Neveiciet aprīkojum aprīkojumaa apkopi bez apkopes rokasgrāmatas izlasīšan izlasīšanas as un saprašanas. Šī brīdinājuma brīdinājuma neievērošana neievērošanass rezultātā rezultātā var var rasties rasties elektriskās elektriskās strāvas trieciena, mehānisku vai citu faktoru izraisītu traumu risks apkopes sniedzējam, operatoram vai pacientam.

ĮSPĖJIMAS (LT)

Šis eksploatavimo vadovas yra tik anglų kalba. • Jei kliento paslaugų tiekėjas reikalauja vadovo kita kalba – ne anglų, anglų, suteikti suteikti vertimo paslaugas privalo klientas. • Nemėginkite atlikti įrangos techninės priežiūros, jei neperskaitėte neperskaitėte ar nesupratote nesupratote šio eksploatavimo vadovo. • Jei nepaisysite nepaisysite šio įspėjimo, įspėjimo, galimi galimi paslaugų paslaugų tiekėjo, tiekėjo, operatoriaus ar paciento paciento sužalojimai sužalojimai dėl dėl elektros šoko, mechaninių ar kitų pavojų.

ADVARSEL Denne servicehåndboken nnes bare på engelsk. (NO)

•

Hvis kundens kundens serviceleverandør serviceleverandør har bruk for et annet språk, språk, er det det kundens ansvar å sørge sørge for oversettelse.

••

Ikke forsøk åhensyn reparere repare re denne utstyret utstyret uten at denne servicehåndboken servicehåndboken er lest lest og Manglende til advarselen advarsele n kan føre til at serviceleverandø serviceleverandøren, ren,forstått. operatøren eller operatøren pasienten skades på grunn av elektrisk støt, mekaniske eller andre farer. farer.

OSTRZEŻENIE Niniejszy podręcznik serwisowy dostępny jest jedynie w języku angielskim. (PL)

•

Jeśli serwisant klienta wymaga języka innego niż angielski, angielski, zapewnienie usługi tłumaczenia  jest obowiązkiem obowiązkiem klienta. • Nie próbować próbować serwisować urządzenia bez zapoznania się z niniejszym podręcznikiem serwisowym i zrozumienia go. • Niezastosow Niezastosowanie anie się do tego tego ostrzeżenia ostrzeżenia może może doprowadzić doprowadzić do obrażeń obrażeń serwisanta, operatora lub pacjenta w wyniku porażenia prądem elektrycznym, zagrożenia mechanicznego bądź innego.

 

AVISO Este manual de assistência técnica encontra-se disponível unicamente em inglês. (PT-BR)

• • •

Se outro outro serviço serviço de assistência técnica solicitar solicitar a tradução deste manual, caberá caberá ao cliente fornecer os serviços de tradução. Não tente tente reparar reparar o equipamento equipamento sem sem ter consultado e compreendido compreendido este manual de assistência técnica. A não observância deste aviso pode ocasionar ferimentos no técnico, técnico, operador operador ou ou paciente decorrentess de choques elétricos, mecânicos ou outros. decorrente

ATENÇÃO Este manual de assistência técnica só se encontra disponível em inglês. (PT-PT)

• • •

Se qualquer qualquer outro serviço de assistência técnica solicitar solicitar este este manual noutro idioma, é da responsabilidade responsa bilidade do cliente fornecer os serviços de tradução. Não tente tente reparar reparar o equipamento equipamento sem sem ter consultado e compreendido compreendido este manual de assistência técnica. O não cumprimento deste deste aviso aviso pode pode colocar em perigo a segurança segurança do técnico, do operador ou do paciente devido a choques eléctricos, mecânicos ou outros.

ATENŢIE Acest manual de service este disponibil doar în limba engleză. (RO)

• • •

Dacă un furnizor de servicii pentru clienţi necesită o altă limbă decât decât cea engleză, este de datoria clientului să furnizeze o traducere. Nu încercaţi încercaţi să reparaţi echipamentul decât ulterior ulterior consultării consultării şi înţelegerii acestui manual de de service. Ignorarea acestui avertisment ar putea putea duce la rănirea rănirea depanatorului, depanatorului, operatorului sau pacientului în urma pericolelor de electrocutare, mecanice sau de altă natură.

ОСТОРОЖНО! (RU)

 Данное руководство руководство по техническому техническому обслуживанию представлено представлено только только на английском языке. • • •

Если сервисному сервисному персоналу клиента необходимо руководство не на на перевод. английском, а на английском, каком-то другом языке, клиенту следует самостоятельно обеспечить Перед техническим обслуживанием оборудования обязательно обратитесь к данному данному руководству и поймите изложенные в нем сведения. Несоблюдение требований данного предупрежден предупреждения ия может может привести к тому, тому, что что специалист по техобслуживанию, оператор или пациент получит удар электрическим током, механическую травму или другое повреждение.

UPOZORENJE Ovo servisno uputstvo je dostupno samo na n a engleskom jeziku. (SR)

• • •

Ako klijentov klijentov serviser zahteva neki drugi jezik, klijent je dužan da obezbedi obezbedi prevodila prevodilačke čke usluge. Ne pokušavajte pokušavajte da opravite opravite uređaj ako niste niste pročitali pročitali i razumeli ovo servisno servisno uputstvo. uputstvo. Zanemarivanje Zanemariva nje ovog ovog upozorenja upozorenja može dovesti dovesti do povređiva povređivanja nja servisera, servisera, rukovaoca rukovaoca ili pacijenta usled strujnog udara ili mehaničkih i drugih opasnosti.

 

UPOZORNENIE Tento návod na obsluhu je k dispozícii len v angličtine. (SK)

• • •

Ak zákazníkov zákazníkov poskytova poskytovateľ teľ služieb služieb vyžaduje iný jazyk jazyk ako ako angličtinu, angličtinu, poskytnutie poskytnutie prekladateľských preklada teľských služieb je zodpovednosťou zákazníka. Nepokúšajte sa o obsluhu zariadenia, zariadenia, kým si si neprečítate neprečítate návod na obluhu obluhu a neporozumie neporozumiete te mu. Zanedbanie tohto upozornenia môže spôsobiť zranenie poskytov poskytovateľa ateľa služieb, obsluhujúcej osoby alebo pacienta elektrickým prúdom, mechanické alebo iné ohrozenie.

ATENCION Este manual de servicio sólo existe en inglés. (ES)

• • •

Si el encargado de mantenimiento mantenimiento de un cliente necesita un idioma que no sea el inglés, el cliente deberá encargarse encargarse de la traducción del manual. No se deberá dar servicio técnico al equipo, sin haber consultado y comprendido comprendido este este manual de servicio. La no observancia del presente presente aviso puede puede dar lugar a que el provee proveedor dor de servicios, el operador o el paciente sufran lesiones provocadas por causas eléctricas, mecánicas o de otra naturaleza.

VARNING Den här servicehandboken nns bara tillgänglig på engelska. (SV)

• • •

Om en kunds servicetekniker servicetekniker har behov av av ett annat språk språk än engelska, ansvarar kunden för att tillhandahålla översättningstjänster. Försök inte inte utföra service på utrustningen om om du inte har läst och förstår den här servicehandboken. Om du inte tar hänsyn till den här varningen kan det resultera i skador på serviceteknikern, serviceteknikern, operatören eller patienten till följd av elektriska stötar, mekaniska faror eller andra faror.

OPOZORILO Ta servisni priročnik je na voljo samo v angleškem jeziku.· (SL)

• • •

Če ponudnik ponudnik storitve storitve stranke stranke potrebuje potrebuje priročnik v drugem drugem jeziku, jeziku, mora stranka zagotoviti prevod.· Ne poskušajte poskušajte servisirati opreme, če tega tega priročnika priročnika niste niste v celoti prebrali prebrali in razumeli.· Če tega tega opozorila opozorila ne upoštevate upoštevate,, se lahko zaradi zaradi električnega električnega udara, mehanskih ali ali drugih nevarnosti poškoduje ponudnik storitev, operater ali bolnik.

DİKKAT Bu servis kılavuzunun sadece ingilizcesi mevcuttur. mevcuttur. (TR)

• • •

Eğer müşteri müşteri teknisyeni teknisyeni bu kılavuzu ingilizce dışında dışında bir başka lisandan talep talep ederse, ederse, bunu tercüme ettirmek müşteriye düşer. Servis kılavuzunu okuyup anlamadan ekipmanlara müdahale etmeyiniz. Bu uyarıya uyarıya uyulmaması, uyulmaması, elektrik, elektrik, mekanik mekanik veya veya diğer diğer tehlikelerden tehlikelerden dolayı teknisyen, teknisyen, operatör veya hastanın yaralanmasına yol açabilir.

 

1/Functional Description The incubator control circuitry is located inside the removable controller. controller. The controller interfaces with the operator through the LEDs and switches on the display board, mounted behind the control panel. The major portion of the control logic, switch interpretation, and power supply generation occurs on the control board. Two external thermister assemblies supply temperature signals to the control board. The patient temperature probe attaches to the patient and plugs into the jack located on the left side of the controller. controller. It contains one thermistor and outputs the patient temperature signal, which is used to generate the patient temperature display and to adjust heater output in the patient control mode. The air temperature sensor mounts on the hood inside the infant compartment and attaches with the air temperature sensor connector, connector, located on the left side of the controller.. It contains two separate thermistor circuits: the air control thermistor controller signal is used by the control circuitry to adjust heater output and to trigger alarms; the air display thermistor signal is used by the control circuitry to generate the front panel air temperature display. The air display signal is also input to an independent air safety circuit, which shuts down the heater if the signal exceeds preset temperature safety limits. A separate thermal switch, mounted on the rear of the controller controller,, shuts down the heater if the heater temperature (monitored at the thermal switch) exceeds 76.7°C (170°F).

1.1 Control Board The control board contains the incubator logic circuitry, diagrammed in Figure 1-1, as well as the power supply and distribution circuitry, diagrammed in Figure 1-2. Please refer to the schematics in section 7 of this manual. This board is an 80C32 microprocessor based controller board. The processor accesses the outside world via multiple digital I/O ports and a multichannel 12 bit analog to digital converter (ADC) circuit. The board also contains its own power supply circuit, making use of o board transformers and a nickel cadmium (NiCd) backup battery to drive the alarm in case of power outages.

 

6600-0292-000 102 

1-1

 

1/Functional Description    7    6    0  .    3    2  .    I

   C

* Circuit produces feedback signal to microcontroller.

Figure 1-1 Control Circuitry Block Diagram

1-2

6600-0292-000 102 

 

1/Functional Description A. Microprocessor Memory Allocation and Peripherals

The processor accesses the digital I/O ports por ts via two dierent methods: Port 1 of the microcontroller (pins 2-9) interface to the display board, while all of the other ports are external memory mapped. Memory mapping the ports simplies both the hardware and software, and allows for the use of common o the shelf parts to minimize the chance of obsolescence. The external data space is 64K bytes, and is divided up as indicated in the table below. External Address Range (hex)

Function

Port Type

0000h - 0FFFh 1000h - 1FFFh 2000h - 2FFFh 3000h - 3FFFh 4000h - 4FFFh 5000h - 5FFFh 6000h - 6FFFh

Expansion bus chip select SRAM chip select (U7) DIP switch port (U3) Input Port #1 (U4) Output Port #1 (U20) Output Port #2 (U19) ADC Latch Low (U6)

I/O I/O Input Input Output Output Input

7000h - 7FFFh 8000h - FFFFh

ADC Latch High (U5) Expansion Bus

Input I/O

Table 1-1 — External Data Space Decoding

Some of these peripherals, such as the input or output latches, have only one register.. When these locations are accessed, all addresses within that range will register contain the same value. For an output port, any address in this range can be written to. As an example, to write to Output Port #1, writing to address 4000h is the same as writing to address 4FFFh - only one write is needed to latch the data.

 

6600 0292 000 102 

 

1/Functional Description Address decoding is accomplished by decoding the upper address lines with a 74HC138 3-to-8 decoder. The top address line, A15, enables the device when it is low; this creates the 32K of address space for the expansion bus, as shown in Table 1-1. When enabled, one output of the decoder goes low, depending upon the state of the 3 address lines A12 through A14. The outputs are further qualied by /RD and /WR using OR gates U1 U 1 and U2. This prevents programming errors from writing to a read only port. It also prevents activating a port when accessing program memory, since only one of the signals /PSEN, /RD or /WR will be active for any given bus cycle. The table below denes the bits of the Input #1 port (U4). Bit

Signal Name

Function

0 1 2 3

HEA EATTER_STATUS /OT (OverTemp) S/O (Sh (Sho ort rt//Open) Frequency

4 5 6 7

2KHz DATA_OUT “0” “0”

High wh when AC AC is is applied to to he heater. From Air Overtemp circuit Detects sh short rtss or or ope open ns in in AI AIR_DISP SPLA LAYY sen senssor From U23, square wave with frequency the same as AC line 556 timer - audible alarm frequency Read data from the EEPROM (U28) Not used, grounded Not used, grounded

Table 1-2 — Input #1 bit denitions

The table below denes the bits of the Output #1 port (U20). Bit

Signal Name

Function

0 1 2

HIGH_PRIORTY_ALARM LOW_PRIORTY_ALARM WATCHDOG_TIMER

3 4

-MUX_CAL MUX_A

See Table 1-4 See Table 1-4 Pulsed on a regular basis by rmware to keep the watch dog timer reset Used by the Air Overtemp circuit mux (U26)

5 6 7

MUX_B MUX_C RUN/HOLD

Selects the analog channel to convert at the ADC Enables/disables the ADC conversions.

Table 1-3 — Output #1 bit denitions

13

14

6600 0292 000 102 

 

1/Functional Description The lowest 2 bits of the Output #1 port are used to control the audio alarm. This alarm has four modes of operation: o, low priority (a constant 2 kHz tone) and two high priority (2 kHz alternated with a 1.75 kHz tone, at a 1 Hz rate). Table 1-4 identies the alarm modes with the bit states. The table below identies the alarm modes with bit states. Bit 1

Bit 0

Mode

0

0

Low Priority

0 1 1

1 0 1

High Priority O  High Priority

Table 1-4 — Alarm Bit Modes

The next table denes the bits of the output #2 port (U19) Bit

Signal Name

Function

0 1 2

HE AT CALL SBR1

Controls external heater solid state relay Signals the external Nurse Call board

3 4 5 6 7

SBR2 SBR3 SBR4 SERIAL_CLOCK DATA_IN

Bank to be select used. for SRAM. Allows >64K of storage space Clock for the EEPROM (U28) & EEPot (U30) Write data for EEPROM & UP/DN signal for EEPot

Table 1-5 — Output #2 bit denitions

 

6600 0292 000 102 

 

1/Functional Description B. SRAM & EPROM The SRAM (U7) on the board is 128K x 8 in size. Only 4K of the device is available to the processor (via the /CS1 chip select). A bank select scheme was implemented using the spare outputs on U19. This allows access of up to 64K of the SRAM, 4K at a time. The top address line, A16, is hardwired to ground due to lack of an additional output port pin. This chip is currently not used and is available for future expansion. The program for the processor processor is contained in a 512K x 8 EPROM (U21). The EPROM is located within the Program space, and is controlled by the processor via the /PSEN line. The processor can access up to the full 64K of program memory, allowing for rmware expansion. An electrically erasable PROM (EEPROM) is located at U28. This is the common 93C46 serial EEPROM. Data is shifted in and out via a serial clock (SERIAL_CLOCK). The chip select for the device is generated by pin 9 of the processor processor.. This chip is currently not used and is available for future expansion.

C. Over temperature & Air_Display Sensor In the case of the Air Overtemp circuitry, software will perform the temperature regulation in the system, but this redundant circuitry provides additional protection against an over temperature condition. A set of voltage dividers generates ge nerates voltages corresponding to temperature readings. The analog multiplexer at U26 selects the voltage divider (via 2 bits (1 & 2) of dip switch SWI and the -MUX_CAL signal from the processor) and presents it to U10. If the input voltage from the AIR_DISPLAY thermistor input is over the limit set by the selected voltage divider, divider, the OT and /OT signals go active. The remaining 2 gates of U10 act as a window comparator: When the input voltage is between the voltages set at pins 4 and 7 of the comparators, the open collector outputs stay high. When the input goes outside this range (for example, the AIR_DISPLAY sensor is missing or shorted to ground), the S/O and /S/O outputs are asserted. If any of the comparators are active, the RELAY signal is de-asserted (dropped to “0”), and the onboard relay K1 is turned o, disabling the heater.

15

16

6600 0292 000 102 

 

1/Functional Description D. Power Supply Circuitry Power is supplied by two o board AC transformers as shown in Figure 1-2: 8VAC for the LED displays and 11VAC for logic power. power. Both circuits use a full wave bridge rectier composed of 4 discrete diodes. A single package bridge rectier was avoided due to future availability of parts. Fuses F1 and F2 are included in case of catastrophic failure of the rectier circuit. Logic power is supplied by a dual linear regulator design. Voltage regulator VR3 is a 7805 5 volt regulator, with the GND pin raised up from ground to generate the 10V signal (+9V_STDBY) from the input rectied voltage (+11_UNREG). This is used to trickle charge an o board NiCd backup battery through R34. Schottky diode D1 presents a low impedance path pa th for powering the board during loss of AC power. power. Diode D4 isolates VR3 from the battery backup power. power. VR1 drops the 10 volts down to the 5V supply needed by the logic. VR1 is an LM2937 low dropout (LDO) regulator regulator.. C64 is i s the output capacitor for the regulator regulator,, and must be present to guarantee that the LDO regulator remains stable. The regulator was chosen to be footprint compatible with the 7805, but allows for longer battery life by presenting a lower voltage drop between input and output pins.

Line Frequency Pulsed DC Signal (Power Failure Detection)

8 Vac

+8 V Unregulated (To Heater Control Circuit)

Rectifier

+5V Regulator

+5 V Display (To (T o Display Displa y Board)

8 Vac

Line Voltage Signal (Adjustable) 11 Vac

+9.8 V (To Battery and Air Flow Sensor) Rectifier

11 Vac

Figure 1-2 Power Supply Circuitry

Regulator (Adjustable Bias)

+9 V Standby (Approx. 7 Volts; from Battery during Power Failure

Regulator

   6    3    1  .    2    0  .    I

   C

+5 V Standby (Control Board Logic)

 

6600-0292-000 102 

 

1/Functional Description The LINE_COMP signal is used by the software to adjust heater duty cycle c ycle to compensate for variations in AC line voltage. Resistor R99 and capacitor C40 create a low pass lter that eliminates the AC line ripple on the unregulated bus. Diode D2 prevents momentary sags in line voltage from aecting the readings. Resistor R33 and potentiometer RP2 act as a voltage divider to present a fraction of the input voltage to the ADC for conversion. The design of the power supply to the display is similar, similar, but uses only one voltage regulator (VR2; a 7805). This circuit is not battery backed. The FREQUENCY circuit generates a square wave with a frequency proportional to the AC input frequency. Diode D5 half wave recties the incoming AC power, power, and this voltage is dropped by a voltage divider composed of R36 and R28. The resulting voltage drives the Schmitt trigger gate at U23, which converts the half wave rectied signal to a clean square wave.

E. Heater Control The heater control algorithm ensures that line voltage variations will not aect the heater output as long as the voltage remains between 90 and 110% of the nominal voltage (115 volts for 120 volt units). For voltages outside this range, the line voltage is assumed to be either 90 or 110% depending on the violated limit. Heater output is controlled by varying the number of ac cycles delivered to the heater. Depending on the line voltage and the percentage of the maximum heater output necessary to maintain the required temperature, between 0 and 60 cycles will be delivered to the heater every second. When the line voltage is within 10% (90% to 110%) of the nominal voltage, the number of heater power cycles is calculated proportionately: Number of of cycles = 50 x (rated voltag voltage) e)2  x (required % max. heater output) (line voltage)2 If the line voltage is less than or equal to 90% of the nominal voltage, the number of cycles is calculated by multiplying the percentage of the maximum heater output required by 60. For example, at 90% of the nominal voltage, the heater would be on for 60 cycles out of 60 when 100% of the maximum heater output was required. Above 110% of the rated voltage, the number of cycles is calculated by multiplying the percentage of maximum heater output by 40. Heat output is independent of line frequency. 1. Heater Control Circuit

As shown in Figure 1-3, the heater control circuit consists of a safety relay, a solid state relay, and a thermal switch wired in series. The heater is normally switched ON and OFF by closing or opening the solid state relay. The heater is switched by two relays, and its voltage status is sensed by an electrically isolated circuit. Darlington transistor Q2 and resistors R41 and R45 control an o board solid state relay (SSR). (SSR ). This is controlled by the HEAT signal, from output port of chip U19. The onboard relay, K1, is controlled by Darlington transistor Q1 and associated components by the RELAY signal, from the Air Overtemp circuitry.

1-7

1-8

6600-0292-000 102 

 

1/Functional Description

   3    3    1  .    2    0  .    I

   C

Figure 1-3 Heater Control and Monitoring Circuits

2. Heater Status

Diodes D7, D8, D17 and D18 form a full wave wave bridge rectier, rectier, with the AC inputs attached across the heater terminals. Resistors R29, R35, R37 and R38 limit the maximum current through the bridge circuit, and provide a level of redundancy. The output of this bridge is attached to the diode section of U11, a CNY17-3Z optoisolator.. When the heater is turned on, the optoisolator transistor turns on. optoisolator This discharges C44, and presents a low to pin 10 of U23. U23, a Schmitt trigger NAND gate, is wired as an inverter inverter,, so HEAT HE ATER_ST ER_STAT ATUS US is high when heater power is applied. Inverter gate U8 lights the LED D6 when HEATER_STA HEATER_STATUS is active. Maximum temperatures and the corresponding voltages are shown below. Mode Air Control Air Control Patient

Control Temperature < 37°C > 37°C All

Alarm Temperature 38°C 40°C 40°C

Approx. Voltage 540 mV 520 mV 520 mV

Resistance 5,740 Ohm 5,289 Ohm 5,289 Ohm

Table 1-6 — Heater temperature/voltage relationship Important: 

Control board dip switches 1 and 2 must both be set to OFF for the high air temperature circuit to function.

Note: The alarm has about 1°C hysteresis before resetting.

 

6600-0292-000 102 

1-9

 

1/Functional Description Safety Relay

The safety relay, K1, is controlled by the Relay signal, which is produced by gating the outputs of the air safety circuit and the watchdog timer circuit. The safety relay shuts down the heater if the watchdog timer fails to receive clock pulses, if the air probe shorts or opens, or if the air temperature exceeds the preset limit. Under normal conditions, the Relay signal is high ( +2.4 Vdc minimum). This switches on transistor Q1, causing the relay coil to energize and close the contacts. Note: This requires a minimum 7.32 Vdc from the unregulated +8 volt supply (TP1-21).

If the air safety circuit or the watchdog timer triggers an alarm, the Relay signal goes low (0.5 Vdc Maximum), switching OFF the transistor and opening the safety relay contacts. Solid State Relay

When the safety relay is closed, the solid state relay switches the heater ON and OFF under microcontroller control. The microcontroller switches ON the heater by setting the Heat signal high. This switches ON Q2, turning on the solid state relay and activating the zero crossing detection circuit inside the relay. Because this circuit switches ON or OFF only at zero voltage there may, in practice, be up to a half cycle switching delay. Thermal Switch

The thermal switch is mounted on the rear of the controller, near the heating element, and is set to open if its temperature exceeds 76.7°C (170°F). The thermal switch self resets (closes) when it has cooled.

F. Analog Inputs The analog input to the system is through U27, a 74HC4051 analog multiplexer. All the thermistor inputs are from the input to ground, with a 5.76K, 0.1% pull-up resistor completing the sensor circuit. External patient inputs are ltered with pi lters consisting of two caps and an inductor.

G. Watchdog Timer

U12 and related circuitry is the watchdog timer. timer. The processor rmware generates regular pulses to the WATCHDOG_TIMER WATCHDOG_TIMER signal (via output port U20). This keeps the device constantly triggered. If the software should stop re-triggering the timer (due to hardware or software failure, for example), the device times out. This causes a number of things to occur: • An interrupt is generated to to the processor processor -INT1 pin. If the fault is in software, software, this may may bring the software back on track and correct the problem. • The high priority alarm is enabled. For a software software error, error, this signal will be asserted so briey that no alarm may be heard. For true faults, the alarm will sound. • The RELAY signal signal is de-asserted, disabling the heater relay relay K1 and the heater. heater. The OPTO input (from connector J5) circuit is used tobuilt check fan speed. The heater fan speed is constantly monitored via a reective optocoupler into the fan housing. Resistor R56 supplies current to the LED. The photo transistor is pulled up via RP3 and supplied to comparator U10. Resistors R52 and R53 set a threshold for the comparator, which converts the variable input voltage to a clean square wave. RP3 adjusts the threshold of the circuit.

1-10

6600-0292-000 102 

 

1/Functional Description H. Audible Alarm The alarm tones are generated by a 556 dual dua l timer. timer. The leftmost timer generates ge nerates a 1 Hz 50% duty cycle square wave, which is used to generate the two tone high priority alarm. The second timer generates the signal that goes to the transducers. The output of the second slot of the LM556C timer is used to generate both a 2 kHz and a 1.75 kHz signal. If the output from the rst slot is a logic “0”, the transistor, transistor, Q3, will not be conducting. If the output from the rst slot is a logic “1”, the transistor, transistor, Q3, will be conducting. When the high priority alarm is sounding, the tone emitted will be 2049 Hertz (+34 / -49 Hertz) for a period of 0.50 seconds (+/- 0.05 seconds) and then 1745 Hertz (+36 / -34 Hertz) for a period of 0.51 seconds (+0.06 / - 0.07 seconds). When the low priority alarm is sounding, the tone emitted will be 2049 Hertz (+34 / -49 Hertz) for a period of time which is determined by software. Q3, an MMBT3904 NPN transistor, is used to switch the capacitor C26 in and out of the circuit, altering the frequency of the tone tone generated. This pin is connected to to a resistor ladder inside the device. By applying a voltage to this pin, the thresholds of the internal comparators are changed, changing the output frequency. As the voltage is varied, the volume varies accordingly. VR4 is an LM317L adjustable voltage regulator. regulator. Its output voltage is controlled by RP4, a multiturn potentiometer, potentiometer, or U30, a Xicor nonvolatile EEPot under software control. Resistors R100 and R102 are added to control the range of the pots. Note that only one of the two variable resistors (RP4 or U30) will be installed. By shorting pins 1 and 2 of TP1, the audio circuit will be muted. This ties the threshold and trigger pins on the second timer of the LM556C timer to +5V_STDBY, which stops the multivibrator from toggling. This also allows the processor to detect the disabled timer, preventing eld service or manufacturing from f rom releasing a board into service with the alarm disabled.

I. A/D Converter The analog to digital converter section is totally ratiometric. This means that all of the analog measurement circuitry, from the sensor voltage to the A/D converter reference voltage, is a function of Vref, the analog reference voltage. This means that Vref’s accuracy can be less critical. Vref is generated by U15, an LM385 1.2V band gap reference. This voltage is sent through a low pass lter consisting of R73 and C49, and is then buered by U24, another voltage follower op-amp. The selected sensor input from U27 is applied to voltage follower op-amp U25. This signal is then sent into an RC low pass lter consisting of R69 and C27, and is then sent into the non inverting input of U14, an ICL7109 analog to digital converter. U13 is a switched capacitor DC/DC inverter, which generates -5V from the 5V supply rail. This voltage is needed by the ADC and the op-amps. L6, C32 and C53 create a separate analog on the digital Vcc plane ofVcc U14.plane and electrically isolate the plane from any noise

 

6600-0292-000 102 

 

1/Functional Description The ICL7109 generates an output based upon the dierence in voltage between the IN_HI and IN_LO inputs. inputs. By raising the IN_LO pin above ground, ground, this voltage is eectively subtracted from the input voltage, achieving the input scaling without external components. This DC oset voltage is controlled by RP5 (DC_OFFSET). The full scale value of the ADC is set by RP6, the SPAN_ADJUST potentiometer. potentiometer. This adjusts the voltage applied to the REF_IN+ pin, the ADC reference voltage. Connector

Function

TP1 J1 J2 J3 J4 J5 J6 J9 J10 J12

Test Point connector, connector, used during debug and eld service AC interface connector for heater and heater control AC power input for the board (8VAC, 11VAC & battery) Display/front panel switch connector Patient & Air probes Heater fan optoisolator Nurse call interface Patient 2 and Patient 3 probe inputs Expansion bus interface Power tap for AC transformer (8VAC, 11VAC)

Table 1-7 — Connector and Test Point Identication Pin

Function

Pin

Function

1 2 4 5 6 7 8

+5V_STDRY ALARM OFF 2 kHz AIR DISPLAY S/O OT AFS

17 20 21 24 25 28

HE AT 9.8V +8V Unreg. GND +9 STDBY +5V_DSPLY

Table 1-8 — TP1 Connector Pin Identication

1-11

1-12

6600-0292-000 102 

 

1/Functional Description 1.2 Display Board The display board is the interface between the operator and the control system. It informs the operator about the incubator and patient status. The operator controls the system by depressing the various switches on the front display. The control board uses P2 bank as bi-directional data lines, plus several timer and control lines for the display unit.

A. Switch Decoding

Signals pass between the micro controller and the display board, at a rate of approximately 1 MHz. Command words are latched in U6 and decoded in U4 on the high to low transition of the PROG line and decoded to set a high impedance on the selected port lines. Buer U2 is connected to the front panel switches. When When a switch is depressed, the corresponding line is pulled low and loaded into U2 and is transferred to the micro controller depending on which address is selected by the decoder, U4 and the low to high transition of the PROG line.

B. LED Displays The LED display driver, U3, controls the LED displays. Data is input to pin 25 synchronously with the clock signal (pin 24). The rst bit activates the driver, driver, and 35 data bits the follow. Afteris the 35th bit is loaded, dataswitches is latched tothe provide direct output. Because output inverted, a logical 1 input ON appropriate LED at the output. Display brightness is factory preset, but can be adjusted using R11.

C. Multiplexing of Displays To minimize the number of driver lines lin es required, displays are multiplexed through U3. Displays are divided into four groups: control temperature LEDs, air temperature LEDs, patient temperature LEDs and miscellaneous LEDs (mode, alarm and heater power). U5 bank select latch turns on a Darlington transistor to select the active display channel. The large gain of the Darlington allows a small current to sustain the load current from the LEDs. Bits 1-32 supply the necessary information to each section. Bit 33 is unused. Bit 34 is tied to a 221 ohm ± 1% resistor resistor,, used for calibration. calib ration. After each of the four display groups has been serviced, a string of 35 zeroes is sent on the data line to reset the driver for the next string of data; the driver operates with serial input and does not have a master reset. The basic display circuit (one LED) includes: the +5 V DISP supply from the control board routed through the 1N4001 diode, the collector emitter junction of the enabled Darlington transistor transistor,, the LED, and the MM5451 decoder.

 

 

Notes

6600-0292-000 102 

1-13

1-14

6600-0292-000 102 

 

2/Set Up and Checkout 2.1 Mounting the Care Plus on the cabinet WARNING:

w Safely mounting or dismounting the Care Plus Incubator

requires two people.

1. Install the four mounting knobs. WARNING: 

w If mounting hardware is not securely fastened, the incubator could tip o

the stand.

CAUTION:  

w

When handling the controller controller,, avoid bumping the fan or the heater. If these items are knocked out of alignment, the fan can grate against the heater or the base.

2. Install the controller controller.. Lift the levers on the controller and slide it into the incubator as shown in Figure 2-2. Push the levers down to lock the controller in place. 3. Refer to 2.2 in this section to perform preoperative checkout procedures.

Controller    2    0    0  .    3    2  .    I

   C

Controller Lever Mounting Knob

Figure 2-1 Mounting the Care Plus Incubator

 

6600-0292-000 102 

 

2/Set Up and Checkout 2.2 Checkout Procedure WARNING: 

w After completing a repair the appropriate calibration procedure must be

performed. After completing any portion of the calibration and adjustment procedures, perform the Checkout Procedure to make sure that the Care Plus Incubator is operating correctly. In addition, a nal Electrical Safety Check, section 3.5, must be performed. Record the information for future reference. Note: Refer to Section 3.4, Calibration, if the results of the Checkout Procedure indicate that the display brightness, the alarm volume, the alarm frequency, the air safety circuit trip point, or the ADC reference voltage need adjustment.

A. Mechanical checks WARNING: 

w Disconnect the power cord for the mechanical portion of the preoperative

checkout procedure.

1. Disconnect the power cord cord for the Care Plus Incubator for the mechanical portion of the preoperative checkout procedure. 2. Examine the power cord cord for damage. Replace the power cord cord if damage is evident. 3. Examine the incubator for obvious signs of damage. 4. Lock the two two front casters and check that the unit is held in place. Release the locks and verify the unit moves smoothly. 5. On the cabinet cabinet,, open the cabinet front doors doors (if present) and verify that the four incubator mounting knobs that attach the Care Plus to the cabinet are secured tightly in place. 6. Rotate both front front door latches toward toward the center of the incubator, incubator, verify the red ag is visible on both latches, and lower the door. door. Make sure that the inner wall is securely fastened to the door. WARNING: 

w The front door inner wall must be in place while a patient occupies

the incubator.

2-1

2-2

6600-0292-000 102 

 

2/Set Up and Checkout 7. Make sure that the front front door is securely fastened to the the incubator. incubator. 8. Check that the mattress mattress and the mattress tray are are properly installed. Verify that you must lift the tray slightly to slide it out of the hood. This prevents the tray from sliding out accidentally. Slide the mattress tray back into the hood. 9. Check the portholes. Open the portholes by pressing pressing on the latch. The cover should swing open. If arm cus are installed, the elastic cu band should t into the groove around the porthole without obstructing the cover. Close the porthole and verify that the mounting posts hold the porthole securely to the hood and that the latch holds the porthole closed. 10. If the optional inner wall is installed, check that it is securely securely attached to the outer wall. To attach the inner wall, insert the two outside inner wall fasteners in the key holes in the inner wall and slide them along the slots until the wall is in position. Lock the wall in place by snapping the two inside fasteners into the holes in the middle of the inner wall. 11. Check that the tubing access covers are also installed on either side of the hood. 12. Check the hood tilt latch. Open the front door. Rotate the hood back approximately 30 degrees, until it locks into position. Push against the hood and make that it isby held in place. Toon close hood, support hood release thesure hood latch pushing back the the release tab. Gentlythe lower theand hood. 13. Close the front door and rotate the latches upward. Verify that the red ag on the latch is masked by the opaque patch on the hood. 14. Check the operation of the tilt mechanism. Rotate the tilt handles down to to raise the bed until it locks in position, then rotate the handles up to return the bed to its original position. 15. Check that the controller is latched in position. The The controller latches should be all the way down, parallel with the sides of the controller. controller. 16. Locate the humidier ll tray (if present) on the underside of the base. Slide the ll tray out. Verify that the seals are in good condition and that there is no obvious damage to any of the humidier components. Slide the humidier back in and push until it locks in position. Push it back until you feel slight resistance, then push harder till it snaps into position. Otherwise, verify that the plugs are in place. 17. Unscrew the two lter mounting knobs on the rear of the incubator, incubator, lift o the vented lter cover panel and check the condition of the lter. If the lter is dirty, has been used with an infectious patient, or has been in use for three months, it must be replaced. When you replace the lter, mark the date on the label supplied with the replacement lter. lter. Ax the label labe l to the side of the incubator.

 

6600-0292-000 102 

 

2/Set Up and Checkout Ite tem m (F (Fig igu ure 22-6)

Func Fu ncti tio on

Hood tilt latch

Secures hood in the tilted position; You must press and hold the hood tilt release tab to raise or lower the hood. Rotate handle for Trendelenburg and Fowler positioning. Press the latch to open the porthole. Route cables and tubes into or out of the unit through the tubing access covers.

Tilt handles Portholes Tubing access covers Door Do or la latc tche hess

Tur urn n doo doorr lat latch ches es to towa ward rd th the e cen cente terr of of the the in incu cuba bato torr to to ope open n the front door. Oxygen inlet Connect tubing between owmeter outlet and oxygen inlet to raise hood oxygen concentration. Patient probe Push probe connector (Model 2000 only) rmly into socket connection until it clicks. Grasp the connector and pull to disconnect. Air temperature Keyed connector for air temperature sensor; to connect the sensor connection air temperature sensor, sensor, align the connectors and push them together.. Disconnect the sensor by pressing in the back of the together connector while pulling back on the “T” handle. Controller latche Controller latchess Pull latches latches up (perpendicul (perpendicular ar to contr controller oller sides) to slide slide out the controller. Push down to secure controller. Filter co cover Power switch Inner wall fastener

Vented pan pane el on on re rear of of un unit. Rem Remo ove kn knobs an and pa panel to access lter. Turns incubator on and o. Used to secure inner walls.

B. Accessory checks 1. Check that all accessories are securely mounted. 2. Check the operation of of any accessories with reference reference to the appropriate appropriate operation and maintenance manuals. 3. Set up any required required suction or gas supply systems. systems. Check them for leaks as outlined in the appropriate operation and maintenance manuals.

2-3

2-4

6600-0292-000 102 

 

2/Set Up and Checkout Portholes Air Temp. Sensor

   4    0    0  .    3    2  .    I

   C

Front Door Latch

Tilt Handle

 

w Frontt Vie Fron View

Left Side View

Right Side View

   5    0    0  .    3    2  .    I

   6    0    0  .    3    2  .    I

   C

   C

Tubing Access Covers Hood Tilt Latch Powermust bedisconnectedpriortoremovingbed platform. Powermust Firehazard.Keepmatches,lightedcigarettes W WARNINGS:Firehazard. andallothersourcesofignitionoutoftheroominwhichthe AirHeatermaybehot. incubatorislocated.Textiles,oils,and othercombustiblesare Thefrontdoorinnerwallmustbein placewhileapatient easilyignitedandburnwi thgreatintensityinairenrichedwith occupiestheincuba tor. oxygen.

OxygenConcentrationChart Averageoxygen Oxygeninput concentrationrange

Possibleexplosi onhazard.Donot useinthepresenceof UseonlyOhmedaskin temperatureprobe. flammableanesth etics. Thehumidityreservoi r,or humidityreservoi plugs, r mustbe fullyinsertedforcorrectincubatoroperation,evenif the Oxygenconcentrationshig herthan40% canincreasetherisk erfeatureisnot used. ofretrolentalfibrop lasia.Itispossiblethatevenconcen trations humidifi of40%orless(formerlyconsideredsafe)coul dbedangerous Useonlyhospitalgradegroun ded power receptacle. forsomeinfants.Therefore,arterialbloodgas measurements W CAUTION: U.S.FederalandCanadianlawrestrctsthis CAUTION:U.S. areextremelyimportantforregulationoftheconcentrationof devicetosalebyorontheorder ofalicensedmedical inspired oxygen when in an oxygen enriched environment. practitioner.

5L/min    10L/min   15L/min

    

25-45% 35-55% 45-75%

NOTE: Oxygenconcentrationlevelsinthis chartareintendedasareferenceonly. Actualconcentratio nsshouldbechecked with an oxygen analyzer.

Replace filter everythree (3) months.

    ?

m Ohmeda ColumbiaMD210461801 Madein USA U.S. Pat. No. 4,936,824

OxygenInlet:EnsuretheController OxygenInlet:EnsuretheController issealed and latched priorto administering oxygen.

?

Controller Latches Patient Probe Connector Power Switch Power Input Air Temperature Sensor Connector (Model 2000 Only) Oxygen Inlet Filter Mounting Knobs (Cord Wrap)

Figure 2-2 Operating Controls, Indicators and Connectors

OxygenInlet

 

6600-0292-000 102 

2-5

 

2/Set Up and Checkout C. Controller checks WARNING: 

w Do not use the Care Plus in the Presence of ammable anesthetics; an

explosion hazard exists under these conditions.

Patient Control Mode and Patient Probe (available on Care Plus 2000 only) Note: The Enable switch must be pressed to activate the temperature adjustment, the Override or the control mode switches. These switches remain active as long as the enable indicator is illuminated (approximately 12 seconds after the last time one of these switches is pressed). Note: If the patient probe reading is below 22.0°C (71.6°F), LLLL appears in place of the patient temperature. Note: All silenceable alarms are preceded by a 30 second operator prompt tone.

1. Make sure the power cord is connected to the socket on the right side side of the controller. 2. Plug the patient probe into the labeled connection on on the left side of the controller. 3. Line up the air temperature sensor sensor connectors. Plug the air temperature temperature sensor into the labeled connection on the left side of the controller. controller. 4. Route the patient probe cord through through the tubing access cover and place the patient probe inside the incubator. 5. Plug the power cord cord into an appropriately rated power source (see (see rating plate for proper voltage, etc.). 6. Switch the power power On and verify verify the following following sequence: sequence: a. An alternating two two tone audible alarm sounds for approximately ve seconds, all the indicators illuminate and “188.88” appears in the three temperature displays. b. All indicators are extinguished except for the air control and the enable indicators. The temperature displays change to show from left to right: Patie ien nt Te Temperature Air Te Temperature

Control Te Temperatu turre

XX.XX (software version, for ex:01.01)

39.0°C (maximum air control temperature)

60H (AC frequency; 50H for 50 Hz units)

c. An operator prompt tone tone sounds, and the control temperature display ashes “33.0°C”. The operator prompt tone will sound every two seconds until a control temperature is entered by b y pressing one of the temperature switches (? or M). d. If the system failure alarm sounds, note the error code and switch o the unit. Wait ten seconds and switch the unit back on. If the system failure alarm recurs, remove the incubator from use. Then, call for service.

2-6

6600-0292-000 102 

   

2/Set Up and Checkout Air Temperature Display

Control Temperature Display    4    1    0  .    3    2  .    I

   C

188.8 8 Alarm LEDs

 

188.8   8 °

>37 C

100% 75% 50% 25%

Control Temperature Switches Enable Indicator

Alarm Silence Switch

Enable Switch

F/ C

°

°

Heater Power LEDs (% of max power: minute average)

Override Switch Override Indicator °F/°C Switch

Series 1000

Patient Temperature Display

Air Temperature Display

Air Control Mode Indicator

Control Temperature Display

   3    0    0  .    3    2  .    I

   C

188.8 8 Alarm LEDs

188.8 8   

188.8 8 >37 C °

100% 75% 50% 25%

Patient Control Mode Indicator Control Temperature Switches Enable Indicator

Alarm Silence Switch

F/ C

°

Heater Power LEDs (% of max power: minute average)

°

Enable Switch Override Switch Override Indicator °F/°C Switch Patient Control Mode Switch Air Control Mode Switch

Series 2000

Figure 2-3 Control Panels

 

6600-0292-000 102 

2-7

 

2/Set Up and Checkout   7. Adjust the control temperature to silence the prompt prompt tone. 8. Check display illumination and the audible alarm by depressing the Alarm Silence switch until all the indicator LEDs illuminate and “188.8” appears in the three temperature displays (approximately ve seconds). An audible alarm will sound. 9. Check the Enable switch. Press the Enable switch. The enable indicator should should illuminate and go out after approximately 12 seconds. Verify that pressing p ressing the temperature switches (? and M) has no eect when the enable indicator is extinguished. 10. Check the analog to digital calibration and the line voltage. Depress the Enable switch until the temperature displays show, from left to right (approximately (a pproximately ve seconds):

 

Patient Temperature

Air Temperature

Control Temperature

25.05°C (±0.2°C) (low calibration point)

37.95°C (±0.2°C) (high calibration point)

From 09.00 to 11.00 (Service use only)

Note: An audible alarm will sound to indicate that the actual temperatures are not displayed.

11. Check the patient probe. Warm the patient probe by placing it between your your ngers. Verify that the displayed patient temperature increases. If you have an ASTM approved thermometer, thermometer, accurate to ±0.1°C, place the thermometer and the patient probe in a glass of warm water. water. Stir the water and wait several minutes until the thermometer reading stabilizes. Verify that the patient temperature shown on the control panel is within 1°C of that shown on the thermometer.. Replace the probe if the dierence exceeds thermometer exc eeds 1°C. 12. Check the normal range of air control temperatures. temperatures. Press the Enable switch to activate the temperature switches (? and M). The enable indicator will illuminate. Press and hold the ? switch. Verify that the lowest control temperature attainable is 20.0°C. If the enable indicator has gone out, press the Enable switch again. Depress the M switch and verify that the air control temperature cannot be set above 37.0°C. 13. Check the extended range of air control temperatures. With the control control temperature set to 37.0°C, sequentially press the Enable and Override switches. The enable indicator should illuminate and the override indicator should blink. Depress the M switch and verify that the maximum air control temperature is now 39.0°C. The override indicator will blink as long as the control temperature setting remains at, or above, 37.0°C. 14. Check the °F/°C switch. Adjust the control temperature to 36.0°C and press the °F/°C switch. Verify that the control temperature is now displayed as 96.8°F. Press the switch a second time to return to a Celsius display.

2-8

6600-0292-000 102 

 

2/Set Up and Checkout 15. Switch to the patient control mode of operation. Press the Enable and the Patient Control switches and verify the following sequence: a. The enable and the patient control indicators illuminate. b. The control temperature display ashes “36.5°C”and an operator prompt prompt tone sounds every two seconds. Adjust the control temperature to silence the prompt tone. The enable indicator will be extinguished approximately 12 seconds after the last time one of the temperature switches (? and M) is pressed. Note: A patient temperature alarm will be triggered if the patient probe temperature diers from the control temperature by more than 1.0°C. If the probe temperature is below 30.0°C or above 42.0°C the heater will not switch On.

16. Check the range of patient control temperatures. Press Press the Enable switch to activate the temperature switches (? and M). The enable indicator will illuminate. Press and hold the ? switch. Verify that the lowest control temperature attainable is 35.0°C. If the enable indicator has gone out, press the Enable switch again. Depress the M switch. Verify that the patient control temperature cannot be set above 37.0°C.  

Note: The maximum patient control temperature can be raised to 37.5°C by internal adjustments specied in the service manual.

17. Check the patient temperature alarm. Press the Enable switch switch and adjust the patient control temperature until it exceeds the patient temperature by more than 1.0°C. An alarm should sound, the patient temperature should ash and the patient temperature alarm indicator should illuminate. Press the Enable switch and adjust the patient control temperature until it is within 0.8°C of the patient temperature. The alarm should cancel. Note: Service personnel can congure the alarm to trigger if the dierence exceeds 0.5°C and to reset when the dierence is less than 0.3°C.

18. Check the probe failure failure alarm. a. Unplug the patient probe from from the controller. controller. Verify that an alternating two tone alarm sounds, the probe failure LED illuminates, HHHH ashes in the patient temperature display and the heater power LEDs are extinguished. Plug the probe back in and verify that the alarm cancels. b. Unplug the air temperature sensor from the controller by pushing in the back of connector while pulling back on the “T” handles. Verify that an alternating two tone alarm sounds, 00.0°C ashes in the air temperature display, the probe failure LED illuminates, and the heater power LEDs are extinguished. Align the connectors and plug the air temperature sensor back into the controller. Verify that the alarm cancels.

 

6600-0292-000 102 

2-9

 

2/Set Up and Checkout 19. Check the power failure alarm and the battery backed memory. Verify Verify that you are still in the patient control mode. Adjust the patient control temperature to 36.0°C. Switch to the air control mode and adjust the control temperature to 35.0°C. Unplug the incubator. An intermittent, nonsilenceable alarm should sound and the power failure LED should illuminate. All other displays and indicators will be extinguished. Wait two minutes and plug the incubator back in. Verify that the alarm cancels and the unit returns to the air control mode of operation with a control temperature of 35.0°C. Switch to the patient control mode and verify a control temperature of 36.0°C. Note: A fully charged battery should supply the power failure alarm for approximately 10 minutes. If the alarm is tested for the full 10 minutes the incubator must be run for at least two hours to recharge the battery before it is used with a patient. Total recharge time is 8 to 10 hours. 20. Check the Alarm Silence switch. Unplug the air temperature sensor and press press the Alarm Silence switch. Verify that the alarm is silenced for one minute. Reconnect the air temperature sensor. Note: The functionality of the remainder of the alarms is continually checked by the microprocessor software software during normal operation. If a fault occurs in any of this circuitry, an indicator lights and a tone is sounded.

Computer independent circuitry continuously measures and compares the incubator temperature with a factory set level. Visual and audible alarms are activated and the heater is shut-o if the incubator temperature exceeds this preset level, independent of the software. Additionally, a computer independent “watchdog” circuit will reset the computer, turn o the heater, and activate the alarms in the event of a microprocessor failure or software error.

D. Operational checks 1. Make sure sure that the incubator is in the air control mode. 2. Verify that that the front door door,, the portholes and the hood are closed. closed. 3. Set the control temperature as close to the air temperature as possible. Allow the air temperature reading to stabilize. Verify that the air temperature remains within 0.5°C of the control temperature for ve minutes after stabilization.

2-10

6600-0292-000 102 

 

3/Calibration and Adjustment WARNING: 

w Use extreme care while performing calibration and adjustment procedures,

or while working on the Care Plus Incubator with power connected. An electrical shock hazard does exist; be certain to observe all standard safety precautions.

3.1 Maintenance schedule The unit should be maintained in accordance with the procedures detailed in the Service Manual. Quarterly and two year maintenance must be performed by a technically competent individual as described in the Repair Policy.

Operator maintenance This schedule lists the minimum frequencies. Always follow hospital and local regulations for required frequencies. Weekly or After Each Patient

Disinfect the humidier if used. Cleanuse thewith incubator an d patients. and check the air a ir lter. lter. Disinfect the incubator incub ator if required or after infectious Quarterly

Replace the air lter lter.. When you replace the lter lter,, mark the date on the label supplied with the replacement lter and ax it to the lter cover panel. Note: This is the minimum replacement frequency. The lter must also be replaced whenever it appears dirty, or has been used with an infectious patient.

Service maintenance This schedule lists the minimum frequencies. Always follow hospital and local regulations for required frequencies. Quarterly

Perform the electrical safety and checkout procedure from the Service Manual. If possible verify an acceptable sound level within the infant compartment. Every other quarterly inspection, check the calibration as detailed in the Service Manual. Every Two Years

Replace the battery. Inspect all seals and gaskets. Replace motor grommets. Note: The battery is used to sound the power failure alarm and to power memory circuits during a power failure. Note: Whenever performing service on the incubator, check the female end of

the powerIfcord the power inlet for anyreplace sign of overheating damage. eitherand of these partscord show anyconnector sign of damage, both parts. or

 

6600-0292-000 102 

3-1

 

3/Calibration and Adjustment 3.2 Special Tools and Equipment The following tools (or their functional equivalents) are required to complete the recommended service procedures. If you do not already have these items, they can be ordered from Ohmeda. Description

Stock Number

Digital Multimeter, 3 1/2 digit

7000-0000-023

Leakage Current Tester with AAMI Test Load 0175-2305-000 Static Control Work Station (recommended) 0175-2311-000 Ligh Li ghtt gre greyy tou touch ch up up pain paintt (Mun (Munse sellll .16 .16GY GY8. 8.56 56-0 -0.4 .44 4 chro chroma ma)) 6600 66 00-0 -071 714-2 4-200 00 0.1% Accuracy Variable Resistance Box Soldering Iron Hair dryer (1000 watts), or heat gun (glass of hot water water,, >45°C, can be used as substitute) Optional items include: Description

Stock Number

Oscilloscope, 15 MHz, dual trace

0175-2302-000

Ohmeda Temperature Simulator Box (variable resistance box with switches preset to various temperatures) DB9 Male Test Connector (pins 2 & 3 shorted) Cable with 1/8" mini phone jack (5 ft. long) included with simulator

0217-2788-800 6050-0001-709 6600-0203-700

Note: This cable has a phone jack on both ends. You may have to remove one of the jacks, because there is no one connector that will accommodate all types of variable resistance boxes.

   9    3    1  .    2    0  .    I

   C

Figure 3-1 Cable for Variable Resistance Box 6000-0203-700

3-2

6600-0292-000 102 

 

3/Calibration and Adjustment 3.3 Calibration Loop (background information) Note: The audible alarm sounds continuously in this loop, although the normal incubator alarms are disabled during the calibration loop.

This loop is used to adjust ADC converter calibration, the 2 kHz alarm frequency, the line voltage compensation, and display brightness. To enter the calibration loop, hold down the Enable switch during power up until a continuous alarm sounds. During the calibration loop: 1. The 2 kHz audio alarm sounds continuously. This allows frequency frequency adjustments. 2. A four place (XX.XX°C) patient probe reading appears in the patient temperature temperature display.  

Note: This display appears even if the patient temperature is outside the normal display range.

3. The percent of rated line voltage at which the unit is operating appears in the control temperature display (XX.XX = XXX.X%). When the correct percentage is displayed, the line voltage compensation is properly adjusted. 4. Output 34 on the display driver driver is activated. This allows the display brightness voltage to be read and adjusted.

3.4 Calibration Procedur Procedures es WARNINGS 

w  After completing a repair of the Care Plus, the appropriate calibration

procedure must be performed. After completing any portion of the calibration and adjustment procedures for the Care Plus Incubator, perform the Checkout Procedure to make sure that the t he unit is operating correctly. In addition, a nal Electrical Safety Check, section 3.5, must be performed. Record the information for future reference. w  Before any disassembly or repair, disconnect the electrical supply suppl y and any

gas supply connections. Also remove any accessories. Do not perform any service or maintenance with the power applied unless specically told to do so in the procedure. CAUTION:  

s

Important: 

Reference Figure 3-2, for the location of control board potentiometers, test points, and switches.

Use the Static Control Work Station (Stock No. 0175-2311-000) to help ensure that static charges are safely conducted to ground. The Velostat material is conductive. Do not place electrically powered circuit boards on it.

A. Preparation 1. Remove the controller from from the incubator. incubator. First unplug the patient probe, probe, the air temperature sensor, sensor, the power p ower supply cord, from the controller controller.. Then lift up the controller latches and slide it forward, out of the incubator. Place the controller on the anti-static mat.

 

6600-0292-000 102 

3-3

 

3/Calibration and Adjustment CAUTION: 

w

When handling the controller controller,, avoid bumping the fan or the heater. If these items are knocked out of alignment, the fan can grate against either the heater or the base.

2. Remove the screws and lock washers used to attach attach the controller controller cover. cover. 3. Reconnect the power power cord and the air temperature sensor to the controller controller.. 4. Verify that control board board switches 1, 2, 7 and 8 are are in the OFF (left) position. position.   Note: Leave switch 4, which selects either a 0.5°C or a 1.0°C limit for the patient temperature alarm, in its original position.  

Note: Leave switch 3, which selects a maximum patient control temperature (patient control mode), in its original position. position.

 

Note: Set switch 5 to the ON (right) position for series 1000 controllers, and to the OFF (left) postion for all other controllers.

   6    6    0  .    3    2  .    I

   C

Switches 1-8

Figure 3-2 Control Board Test Points and Potentiometers

3-4

6600-0292-000 102 

 

3/Calibration and Adjustment B. Check Voltage Supplies 1. Switch ON the the incubator. incubator. It will will proceed through through the normal power up tests. tests. Enter a control temperature temperature to silence the prompt tone. 2. Adjust control control board potentiometer RP7 until TP1-20 measures 9.8 ± 0.05 Vdc with respect to GND (TP1-24). 3. Verify the the following voltages on the control control board with respect to GND (TP1-24):

 

Test Point

Voltage

TP1-29 TP1-1 TP1-35

5.0 ± 0.3 Vdc 5.0 ± 0.3 Vdc 9.0 ± 0.3 Vdc

Note: These voltages cannot be adjusted. The control board must be replaced when they are not within the specied range.

C. Display Brightness Note: Because display brightness is factory calibrated for both replacement boards and complete controllers, brightness adjustments are only required if the LEDs

appear to be dim. 1. Hold down the Alarm Silence switch until all the displays illuminate (approximately ve seconds). Check that all displays are illuminated and of uniform brightness. If the displays are acceptable, proceed to Section D. Otherwise, continue with this adjustment procedure. 2. Switch OFF the power and remove remove the front controller panel. a. Turn the controller controller upside down and remove the lower lower three front front panel mounting screws, shown in Figure 3-3. b. Turn the controller controller right side up and remove the remaining front panel mounting screws, shown in Figure 3-3. 3. Remove ESD shield. 4. Connect meter leads to terminals 10 and 11 of display board connector connector J8. 5. Reconnect the power cord. 6. Enter the calibration loop by switching the unit ON while holding down the Enable switch. Continue to hold the Enable switch until a continuous single tone alarm sounds, indicating that the calibration loop is active.

 

6600-0292-000 102 

3-5

 

3/Calibration and Adjustment Lockwasher Screw

Front Panel ESD Shield Display Board RP1

   1    1    1  .    2    0  .    I

   C

Screw

Figure 3-3 Display Brightness Adjustment

7. Monitor the voltage at connector connector J8 pins 10 to 11 or across across R11 on the display board. Adjust display board potentiometer RP1 (accessible from the edge of the board) to obtain a reading of 3.30 ± 0.2 Vdc. Important: 

The brightness voltage measured above will dier if the calibration loop is not used. 8. Replace the display board board if an acceptable level of brightness cannot be achieved. 9. Disconnect the power cord cord and reassemble by performing steps 2 and 3 in reverse order.

D. Alarm Frequency Note: The alarm frequency and volume are precalibrated at the factory for both replacement boards and complete controllers. Frequency adjustments should not normally be required in the eld.

1. Verify that the incubator is in the calibration loop. loop. 2. Verify that the frequency output output at TP1-4 is 2 kHz kHz ± 0.1 kHz. Adjust RP8 on the control board as required.

3-6

6600-0292-000 102 

 

3/Calibration and Adjustment E. Line Voltage Compensation 1. Verify that that the incubator is in the calibration loop. In this loop the control temperature display continuously shows the percent of nominal input voltage at which the unit is operating.  

Note: Multiply the displayed value by ten to get the actual percentage (XX.XX = XXX.X%).

2. Determine the rated heater voltage of your unit from the serial number sticker on the back of the base platform. 3. Measure the the line voltage between the appropriate transformer primaries (pins 4 and 2 on 120 volt units): Rated Input Voltage (from serial number sticker)

Nomina Nom inall Input Input Voltag Voltage e Mea Measur sure e Between Between Pins Pins

240 volts 220 volts 120 volts 100 volts

240 volts 220 volts 115 volts 95 volts

6 and 2 5 and 2 4 and 2 3 and 2

4. Calculate the percent of the nominal input voltage by dividing the measured voltage by the nominal input voltage and multiplying by 100%. % of line voltage =

(Measured Voltage) (Nominal Input Voltage)

x 100%

5. Adjust control control board potentiometer potentiometer RP2 until the control temperature display display shows the percentage calculated in the previous step ± 2%.  

Note: The control temperature reading appears in the format XX.XX, which must be multiplied by ten to give the actual percentage, XXX.X%.

F. Analog to Digital Converter Conver ter (ADC) a. Procedure using the Ohmeda Temperature Simulator Box 1. Check the readings from from the calibration resistors. resistors. Depress Depress and hold the Enable switch until the proper calibration readings appear in the patient and air temperature displays (approximately ve seconds):

Patient Temperature Air Temperature

25.05 ± 0.2°C 37.97 ± 0.2°C

If these values are within tolerance, no calibration is necessary, skip to G Alarm Volume. 2. Verify that the incubator is in the calibration loop. If a 0.1% variable resistance box is available, proceed to F.b for simpler procedure, otherwise go to step 3. 3. The Ohmeda temperature simulator box (Stock (Stock No. No. 0217-2788-800) is a variable resistance box with switch settings corresponding to predetermined temperatures. Select 5900 ohms at setting I7 and plug the box into the patient probe jack.  

Adjust RP5 to obtain a reading of 37.37 ± 0.02°C in the Patient Temperature display.

 

6600-0292-000 102 

 

3/Calibration and Adjustment  

Note: Although the tolerance is ± 0.02, the readings should be adjusted as closely as possible to the nominal value; the ± 0.02°C allows for system noise, etc.

  4. Connect a resistance resistance of 7686 ± 0.1% (Ohmeda Temperature Simulator Box setting I1) to the patient jack connector and adjust RP6 to obtain a reading of 31.09 ± 0.02°C in the patient temperature display.   5. Repeat steps 3 and 4 until no further adjustment adjustment is required. required.   6. Switch OFF the power to exit the calibration loop.   7. Switch the incubator ON. After the normal power power up sequence, enter a control temperature to silence the prompt tone.   8. Adjust the resistance resistance box settings for the following resistances. resistances. Verify that the corresponding temperature appears in the patient temperature display. Resi Re sist stan ance ce Inp nput ut

Temp mp.. Si Sim. m. Bo Boxx

Pat atie ien nt Tem Tempe pera ratu turre Dis Displ play ay

5496 ± 0.1% 7060 ± 0.1% 6190 ± 0.1%

I2 I3 I11

39.0 ± 0.1°C 33.0 ± 0.1°C 36.2 ± 0.1°C

  9. Disconnect the resistance resistance box from from the patient probe jack.  10. Switch the unit o. Calibration is complete. 10. b. Simplied procedure using a 0.1% accurate resistor decade box

1. Check the readings from from the calibration resistors. resistors. Depress Depress and hold the Enable switch until the proper calibration readings appear in the patient and air temperature displays (approximately ve seconds): Patient Temperature Air Temperature

25.05 ± 0.2°C 37.97 ± 0.2°C

If these values are within tolerance, no calibration is necessary, skip to G Alarm Volume. 2. Connect a 2.980 K ohms resistance resistance to the patient sensor input input.. 3. Turn power power o then press the Enable button while turning the power on. 4. Adjust potentiometer potentiometer RP5 until the control temperature display toggles toggles between 000 and 001. 5. Now connect a 32.789 K ohms resistance to the patient sensor input input.. 6. Adjust potentiometer potentiometer RP6 until the control temperature display toggles toggles between F9E and F9F. 7. Turn power o o then back on to exit calibration mode.

3-7

3-8

6600-0292-000 102 

 

3/Calibration and Adjustment G. Alarm Volume WARNING: 

w Lowering the volume excessively may prevent caregivers from hearing

alarms. The alarm volume and frequency are precalibrated at the factory for both replacement boards and complete controllers. Volume adjustments should not normally be required in the eld.

H. Air Safety Circuit Calibration (High Air Temperature Alarm) This procedure requires a hot air source. Either a hair dryer (approximately 1000 watts), or a heat gun , or a glass of hot water (>45°C) can be used for this purpose.   1. Switch the controller ON.   2. In the air mode, adjust the control temperature temperature to 36.9°C. 36.9°C.   3. The heater should switch ON. Verify that the heater power LEDs on the display panel and the heater status LED on the control board are both illuminated. The heater status LED may icker. icker.   4. If you are using a glass of hot water (>45°C) as the heat source: source: a. Unscrew the two mounting screws that that attach the air temperature temperature sensor to the hood. Remove the sensor mounting blocks and pull the sensor out of the hood. b. Place the air temperature sensor in the glass of hot water (>45°C). The rate of temperature increase should not exceed 0.05°C per second.   5. If you are using a heat gun or blow dryer dryer,, switch it on and point it at the air temperature sensor. sensor. Observe how quickly the displayed air temperature increases. If necessary, reposition the heat gun (dryer) so that the rate of increase does not exceed 0.05°C per second.   6. Monitor the air temperature display. When the high air temperature temperature alarm illuminates, verify an air temperature display of 38.0 ± 0.3°C. Also verify that the safety relay opens (audible click; heater status LED extinguished).   7. Press the alarm silence switch and remove remove the air temperature temperature sensor from from the glass of water or switch OFF the blow dryer. Important: 

This alarm will not reset unless the alarm silence switch is pressed.   8. Monitor the air temperature display and verify verify that the the alarm resets. resets.   9. If the alarm is triggered triggered at an air temperature temperature other than 38.0 ± 0.3°C, adjust RP1 on the control board and repeat this procedure. 10. If necessary, remount the air temperature temperature sensor on the hood.

 

6600-0292-000 102 

3-9

 

3/Calibration and Adjustment I. Fan Sensor Adjustment Adjust RP3 for 2.70 to 2.90 VDC between TP1-24 and TP1-8 using a DC Voltmeter such as a Fluke 8060 A, Fluke 87, HP3468 or equivalent eq uivalent meter. meter. For either sensor, sensor, verify that the fan sensor is working by doing the following: a. Replace the controller controller in the incubator incubator.. Plug in the air temperature temperature sensor and the power cord. b. Switch the incubator ON. c. Depress the F/C switch approximately approximately 5 seconds until dierent numbers appear in the the control temperature display (approximately ve seconds). This number will be the fan RPM (typically fan RPM should be between 1300 and 1650) .

J. Thermal Switch Operation 1. Hold a hot soldering iron (minimum temperature 76.7°C) against the thermal switch on the rear of the controller controller.. 2. Listen for an audible click, indicating that the switch has opened. The click should occur within a few seconds. When the thermal switch has opened the heater indicator light on the control board should be constantly illuminated.  

Note: An open thermal switch makes it appear as if the heater is continuously enabled. This may trigger error code E13. Switch the unit OFF and continue with step 3.

3. Remove the soldering iron and allow the switch to cool. cool. 4. Listen for a second click indicating that the switch has closed. When the thermal switch closes, the heater indicator LED may icker depending on the status of the heater heater.. 5. If the thermal switch switch fails these tests, tests, it must be replaced.

K. Setting the Patient Temperature Alarm Threshold If desired, reset the patient temperature alarm to trigger when the dierence between the patient control temperature and the monitored patient temperature exceeds 0.5°C. This is done by setting dipswitch 4 to the ON position.

L. Setting the Maximum Patient Control Temperature If desired, the maximum patient control temperature (patient control mode) can be set at 37.5°C instead of 37.0°C. This is done by setting dipswitch 3 to the ON position.

M. Closure   1. Switch OFF OFF the controller controller..   2. Verify that the the power cord, the air temperature sensor sensor,, and the patient probe probe are disconnected from the controller.   3. Make sure that the dipswitches are congured for normal operation. Switches 1, 2, 7 and 8 must be OFF. The position of switches 3 and 4 will vary depending on the maximum patient control temperature and the tolerance selected for the patient temperature alarm.  

Note: If dipswitches 1 and 2 are not OFF, error code E09 (incorrect dipswitch setting) will

be triggered. 3-10

6600-0292-000 102 

 

3/Calibration and Adjustment CAUTION:  

w

When handling the controller controller,, avoid bumping the fan or the heater. If these items are knocked out of alignment, the fan can grate against either the heater or the base.

  4. Replace the controller cover cover.. Use the screws screws and lock washers washers removed in Section A to secure the cover.   5. With the controller controller release latches in the release position (perpendicular to the controller sides), carefully slide the controller back into the incubator. incubator.   6. Push the controller controller latches down into the locked locked position.   7. Connect the air temperature sensor and the power power cord to the controller. controller.   8. If the ThermaLink option is installed, installed, connect the ThermaLink cable.   9. Turn the unit ON. ON. Verify that the fan is circulating air and that the fan is not rubbing against the base platform. 10. Complete the Electrical Safety Check in Section 3.5. 11. Perform the Checkout Procedure in Section 2.6.

3.5 Electrical Safety Check A. Leakage Current Use approved equipment and techniques to test the unit’s leakage current and ground continuity. Follow the directions supplied by the test equipment manufacturer to verify the following: • Less than 300 microamperes measured measured at any exposed metal surface for equipment rated at 120 Vac, 50/60 Hz. • Less than 500 microamperes measured measured at any exposed metal surface for equipment rated at 220/240 Vac, 50/60 Hz.

B. Ground Resistance Check Use a low range ohmmeter or electrical safety analyzer to measure the resistance between the ground pin on the line cord plug plu g and exposed metal of the controller. The ground resistance must be less than 0.2 ohms.

 

 

Notes

6600-0292-000 102 

3-11

3-12

6600-0292-000 102 

 

4/Troubleshooting WARNING: 

w Use extreme care while performing calibration and adjustment procedures,

or while working on the Care Plus Incubator with power connected. An electrical shock hazard does exist; be certain to observe all standard safety precautions. CAUTIONS: 

w

When handling the controller controller,, avoid bumping the fan or the heater. If these items are knocked out of alignment, the fan can grate against either the heater

or the base. s  Use the Static Control Control Work Station Station (Stock No. 0175-2311-00) to help ensure ensure that static charges are safely conducted to ground. The Velostat material is conductive. Do not place electrically powered circuit boards on it. Note: Self test programs stop when a system error code is detected. Therefore a second error code will not be displayed for another failure. The same failure can trigger more than one error code. The actual code that appears is determined by the point in the test loop where the fault occurs.

The Care Plus features three levels of testing for maximum reliability and ease of troubleshooting. Self tests are performed on power p ower up to check microcontroller, microcontroller, EPROM, and RAM function. They are performed continuously during operation to verify proper ADC, heater control, safety circuit, circuit , temperature sensor, sensor, alarm, RAM, and software operation. Control panel switches activate on demand tests that can be used to assess error codes. Specically you can verify ADC calibration and check for drift; check the individual ADC channels; monitor the occurrence of any software upsets, and check the line voltage. You can check the fan RPM. A separate RAM memory test loop continuously repeats the power up tests. When required, you can operate the controller outside the incubator to directly measure control board signals. During controller testing, it is important to remember that the alarm criteria discussed in this section apply regardless of whether or not the controller is installed in the unit. Failure to connect the patient probe (or an equivalent load) in patient control mode, or the air temperature sensor in either operational mode will trigger the probe failure alarm. Air or patient temperature readings outside the alarm limits will still activate the corresponding alarms. In patient control mode the heater will not switch ON unless the patient temperature reading is within the 30 to 42°C range.

4.1 Alarms and Error Codes There are two types of alarms on the Care Plus incubator. The rst group of alarms are indicated by the alarm LEDs on the control panel. When one of these alarms is active the corresponding LED illuminates and an audible alarm sounds. Error codes are a subset of the system failure alarm. When the system failure alarm illuminates for anything other than a gross microcontroller failure, the corresponding error code appears in the control temperature display.

 

6600-0292-000 102 

 

4/Troubleshooting A. Front Panel Alarms Note: All alarms, with the exception of the system failure and power failure alarms, are preceded by a 30 second operator prompt tone.

1. Patient Temperature Alarm (active in the patient mode only) only)  

This alarm is active only in the patient control mode. It is triggered when the dierence between the patient temperature and the control temperature exceeds 1°C. The alarm self resets when the patient temperature returns to within 0.8°C of the control temperature.

 

Note: The patient temperature alarm can be adjusted to trigger if the temperature dierence exceeds 0.5°C and reset when the dierence is less than 0.3°C (Refer to Section 3.3.K.).

 

Note: If the patient temperature is outside the 22 to 42°C range, either HHHH or LLLL, respectively, will appear in the patient temperature display.

Audi Au dio o Sig Signa nal:l:

Alarm Silence:

Heater Status:

Interm Inte rmit itte tent nt si sing ngle le to tone ne if pa pati tien entt tem tempe pera ratu turre wit withi hin n the the 30 to 42°C range. Outside this range, an alternating two tone alarm sounds. 15 minutes if temperature dierence is < 2°C. 5 minutes if temperature dierence is 2°C or higher. 1 minute if patient temperature < 30°C or > 42°C. Heater is automatically shut o if the patient temperature is not between 30 and 42°C.

2. Control Temperature Alarm (active in air control control mode only)  

The control temperature alarm is active only in the air control mode. It is suppressed for 30 minutes when power is rst applied and for 15 minutes after each mode or control temperature change. The alarm is triggered when the reading from the air control thermistor exceeds the control temperature by more than 1.5°C or falls more than 3°C below the control temperature. The alarm self resets with a hysteresis of 0.2°C. Audio Si Sig gnal: Alarm Silence: Heat He ater er Sta Statu tus: s:

Inter erm mitten entt single tone 15 minutes Norm No rmal al heat heater er oper operat atio ion, n, depe depende ndent nt on on selec selecte ted d contr control ol temperature and air temperature.

3. High Air Temperature Alarm  

This alarm is triggered if the air display temperature exceeds the alarm limit in the table. This alarm is not self resetting; you must press the alarm silence switch before the alarm will reset.

4-1

4-2

6600-0292-000 102 

 

4/Troubleshooting  

A transient alarm may be triggered if you change from from a mode with a 40°C alarm limit to a mode that has a 38°C alarm limit. Control Mode

Temp. Range

Alarm Limit

Patient Control

35.0 to 37.0° C (Max. DET 39.0°C) 35.0 to 37.5°C (Dipswitch 3 ON; Section 3.3.L; Max. DET still 39.0°C) 20.0 to 37.0°C (Normal Range) 37.0 to 39.0°C (Override switch)

40.0°C

Air Control

Audio Signal: Alarm Silence: Heater Status:

40.0°C

38.0°C 40.0°C

Alternating two tone 5 minutes Heater is automatically shut o.

4. Air Circulation Alarm  

This alarm triggers when the fan sensor detects that the fan has stopped spinning or is not installed. The fan sensor is mounted facing the hub. The fan is designed with cutouts so that as the fan spins, the sensor “sees” alternating areas of reectance and non-reectance. This signal is then processed and input to the microcontroller as an interrupt. The microcontroller counts the interrupts for 10 second intervals to determine the fan’s RPM. If the RPM drops below 800 for 2 consecutive intervals, the air circulation alarm is triggered. The alarm resets when the RPM is detected to be above 800.

 

To display the fan RPM, depress and hold the F/C switch approximately 5 seconds until the fan RPM appears in the control temperature display.

 

The air circulation alarm can trigger for several reasons. Check the following: Blower motor is turning White fan blade is installed. Verify calibration per section 3 If the unit can’t c an’t be calibrated, replace the fan sensor. If the problem persists, replace the pc board.

 

Note: When replacing either the sensor or the board, the fan sensor circuit must be recalibrated before the unit is put back in service.

 

6600-0292-000 102 

4-3

 

4/Troubleshooting  

The air circulation alarm is most commonly triggered by a blower motor failure or a missing fan. Audio Signal: Alarm Silence: Heater Status:

Alternating two tone 5 minutes Heater is automatically shut o 

5. Probe Failure Alarm  

In the air control mode, the probe failure alarm is triggered by a disconnected air temperature sensor. sensor. In the patient control mode, the probe failure alarm is triggered by either a disconnected or faulty patient temperature probe (short or open) or a disconnected air temperature sensor. The alarm self resets when the condition is remedied.

 

The patient temperature probe is judged to be disconnected or faulty if its signal is outside the 5 to 50°C range ( approximately 884 mV to 410 mV). The air temperature sensor is assumed to be disconnected if both the air control and the air display signals are outside this range. This means that the probe failure alarm will be triggered instead of error codes 10 or 11 if both circuits in the air temperature sensor are open or shorted.

 

If neither the probe (patient control mode only) nor the sensor are disconnected, one or other isthe faulty. Check the patientdisplay temperature probe (patient mode only) by the observing patient temperature and verifying that it iscontrol consistent with the temperature of the probe. If LLLL or HHHH appear in the display, check the actual probe reading by depressing and holding the Air Control switch until a value appears in the patient temperature display (approximately ve seconds). If the temperature is outside the 5 to 50°C range, replace the patient temperature probe.

 

Check the air temperature sensor by depressing and holding the Override switch until the air control thermistor reading appears in the patient temperature display and the air display thermistor reading appears in the air temperature display (approximately ve seconds). If both readings are outside the 5 to 50°C range, replace the air temperature sensor. Audio Si Sig gnal:

Alternating tw two tone

Alarm Silence: Heater Status:

1 minute Heater is automatically shut o 

6. System Failure Alarm

WARNING: 

 

The system failure alarm is triggered if one or more of the system parameters monitored by the microcontroller self tests fail. This section describes the actual tests and gives a list of probable causes for each code.

 

If the microcontroller fails, there may be some cases where the only indication is a continuous, nonsilenceable audio alarm (i.e. no alarm indicator illuminates and no error code appears). This occurs because the microcontroller controls the display indicators. To ensure patient safety, a microcontroller independent safety relay will switch o the heater if the temperature exceeds preset safety limits.

w If a system failure alarm occurs, the unit must be removed from use until it has been

serviced.

4-4

6600-0292-000 102 

 

4/Troubleshooting Audio Signal: Alarm Si Silence: Heater Status:

Alternating tw two tone Cannot be be si silenced Heater is automatically shut o 

7. Power Failure Alarm  

The power failure alarm is triggered when the line frequency signal pulse is absent on I/O expander U15 pin 15. (On controllers with serial numbers that begin with HAF HAF, , the line frequency pulse is absent onpowers the microcontroller U19,and Pin 12.) a power failure alarm the NI-CAD battery the control logic RAMDuring circuits for up to 10 minutes. If power is restored within this time, the unit will return to the mode of operation and the control temperature in eect before the power loss.

 

The power failure alarm can be caused by a disconnected plug , faulty wiring, a faulty transformer, transformer, or, on controllers with serial numbers beginning with HBJ and HCE, an open circuit breaker. Audio Si Signal: Alar Al arm m Si Sile lenc nce: e: Heat He ater er St Stat atus us::

Intermittent si single to tone Cann Ca nno ot be sililen ence ced d Ther Th ere e is is no no pow power er to th the e hea heate terr

B. Error Codes Important: 

The recommended service policy is to limit repair procedures to sensor or board replacement, or in some cases the replacement of socketed integrated circuits. Additional information is provided for the purpose of identifying the faulty assembly. Error codes are a subset of the system failure alarm. When an error code is triggered, an alternating two tone alarm sounds, the heater is automatically shut o, and normal incubator operation stops. However, However, the patient and air temperature displays will continue to update, and the various on demand test functions are still available. This section individually discusses each error code, specically covering the triggering conditions, any applicable on demand tests, and test points. 1. E01, Instruction Test Failure  

A software routine executes selected instructions from the 8032 microcontroller microcontroller.. The results are then checked, and if any mistakes are found this error is triggered.

 

There are no related test points, however the RAM memory test loop cycles repeatedly through this test. To begin the loop, switch o the unit. Then turn it back on while depressing the Override switch until a continuous alarm sounds (approximately ve seconds). If the error recurs, replace the microcontroller (U19) and repeat the test. Replace the control board if the problem persists.

2. E02, ADC High Calibration Failure  

The reading from the ADC calibrate high resistor (R5, 5.76 kOhm) has exceeded the limits of 37.96 ±0.3°C. This corresponds to a voltage of approximately 540 mV at the ADC input (U1 pin 14).

 

To see if the ADC requires calibration, depress the Enable switch until the low

calibration reading (25.05 ±0.3 C) appears in the patient temperature display,  

6600-0292-000 102 

4-5

 

4/Troubleshooting and the high calibration reading (37.96 ±0.3°C) appears in the air temperature display (approximately ve seconds). If either reading exceeds or nearly exceeds the limits, calibration is required. The second possibility is that resistor R5 may be out of tolerance. If the problem persists, replace the control board. 3. E03, ADC Low Calibration Failure  

The reading from the ADC calibrate low resistor (R8, 10 kOhm), has exceeded the limits of 25.05 ± 0.3°C. This corresponds to a voltage of approximately 690 mV at the ADC input (U1 pin 13).

 

To see if the ADC requires calibration, depress the Enable switch until the low calibration reading (25.05 ± 0.3°C) appears in the patient temperature display and the high calibration reading (37.96 ± 0.3°C) appears in the air temperature display (approximately ve seconds). If either reading exceeds or nearly exceeds the limits, calibration is required. The second possibility is that resistor R8 may be out of tolerance. If the problem persists, replace the control board.

4. E04, EPROM Checksum Failure  

The results of the EPROM memory memory checksum dier from the correct result stored at memory locations 3FFE and 3FFF on U16.

 

There are no related test points, however the RAM memory test loop cycles repeatedly through this test. To begin the loop, switch o the unit. Then turn it back on while depressing the Override switch until a continuous alarm sounds. If the error recurs, replace the EPROM (U16), and repeat the RAM R AM test loop. If the error e rror still recurs, replace the control board.

5. E05, RAM Test Failure  

The data read out of a RAM memory location diers from the test pattern written to it.

 

There are no related test points, however the RAM memory test loop cycles repeatedly through this test. To begin the loop, switch o the unit. Then turn it back on while depressing the Override switch. If the error recurs replace the control board.

6. E07, ADC Converter Failure  

This alarm is triggered if the Conversion Complete Signal from the ADC does not occur within two seconds of the Start Conversion signal from I/O expander #2.

 

Do not attempt to monitor these signals; the Start Conversion and the Conversion Complete pulses are extremely narrow with durations of only a few nano seconds. Verify that no conversions are being completed by heating or cooling either the air temperature sensor or the patient temperature probe and observing that the temperature displays do not update.

 

Since the ADC module is not socketed, control board replacement is recommended.

7. E08, S/O Circuit Not Working  

The logic logic level of the safety circuit S/O signal does not agree with with the level that would would be expected based on the air display temperature. The S/O signal (TP2-5) should be low only when the air display temperature is outside the 5 to 50°C range (greater than 884 mV or less than 410 mV at TP2-7).

 

If the air display temperature were actually outside this range, error error code E10 would be triggered.

 

The most most probable cause is a faulty comparator circuit (U5) in the S/O S/O circuit circuit.. Since this is not a

socketed chip, control board replacement is recommended. 4-6

6600-0292-000 102 

 

4/Troubleshooting 8. E09, Incorrect Dip Switch Setting  

The signals from dipswitches 1 and 2 are logic high (corresponds to logic low inputs at U17 for the inverted signals). The most probable cause is that dipswitches 1 and 2 are improperly congured. Set both dipswitches to the OFF (open) position.

 

If the dipswitches are correctly congured, either the dipswitch or an inverter (U11B or U11C) may be faulty. Board replacement is recommended, since these circuits are not socketed.

9. E10, Air Display Sensor Bad  

The air display signal is outside the 5 to 50°C range range (greater than 884 mV or or less less than than 410 mV at TP2-7) while the air control signal remains within the 5 to 50°C range. Red Dot

1 5

2

   8    3    1  .    2    0  .    I

   C

4

3

Figure 4-1 Air Temperature Sensor Connector (end view)

 

Observe the displayed air temperature. If it is outside the 5 to 50°C range, replace the air temperature sensor. sensor. Alternatively, perform a continuity check on the sensor by by measuring the resistance between pins 4 and 5 on the sensor connector (Figure 4-1), or between pins 10 and 11 on the control board J4 connector. connector. Replace the sensor if you do not obtain a reading between 25.7 and 3.6 kOhms (20°C = 12.5 kOhms).

 

Check that the J4 connector is properly mated to the control board. If the problem persists, replace the control board.

10. E11, Air Control Control Sensor Bad  

The air control signal is outside the 5 to 50°C 50°C range (greater than 884 mV or less than 410 mV at TP2-7) while the air display signal remains within the 5 to 50°C range.

 

Depress and hold the Override switch until the air control temperature appears in the air temperature display (approximately ve seconds). If the displayed air control temperature is outside the 5 to 50°C range, replace the air temperature sensor. Alternatively, perform a continuity check on the sensor by measuring the resistance between pins 1 and 2 (Figure 4-1) on the sensor connector or between pins 6 and 7 on the control board J4 connector. Replace the sensor if you do not obtain a reading between 25.7 and 3.6 kOhms (20°C = 12.5 kOhms).

 

Check that the J4 connector is properly mated to the control board. If the problem persists replace the control board.

 

6600-0292-000 102 

4-7

 

4/Troubleshooting 11. E12, Heater Not Switching Switching On  

The microcontroller has commanded the heater to switch on (Heat TP2-2 low), but the heater status signal from U7A pin 11 remains low indicating that the heater is o.

 

This is a dicult code to troubleshoot, since the control signals and the continuity across the solid state relay change from those required to power the heater to those that shut down the heater as soon as this failure is detected.

 

The most probable cause of this failure is a faulty solid state relay. If the problem persists after relay replacement, replace the control board.

12. E13, Heater Not Switching Switching O   

The microcontroller has commanded the heater to switch o (Heat TP2-2 high). However,, the heater status signal from U7A pin 11 remains high indicating that the However heater is on.

 

This error code can be triggered without an actual failure having occurred, because of a thermal switch in the heater neutral that opens at a temperature of 76.7°C. When the thermal switch opens, it causes a logic high heater status signal (logic low on controllers that have Software Revision 02.00), which illuminates the heater status LED and signals the microprocessor that the heater is on.

 

The thermal switch normally opens for a few minutes when a hot incubator is switched o because of residual radiant heat and the lack of a cooling air ow. If the incubator is restarted before the thermal switch has cooled, E13 may appear as soon as this alarm is enabled (approximately three and a half minutes after power up; normally, a period of three and a half minutes is sucient to cool the incubator).

 

Check to see if the thermal thermal switch switch has opened as soon as the error error occurs, before it has had time to cool down. The thermal switch opens at a temperature of 76.7°C and is located on the back of the controller. Because the decimal point is not illuminated, you must divide the reading by 10 to obtain the temperature.

 

The second possibility is that the thermal switch has failed in an open position. Disconnect the power cord and do a continuity check between the two terminals of the thermal switch. The resistance should be less than 1 Ohm.

 

The third possibility is a shorted solid state relay. Replace the the relay. If the problem persists, replace the control board.

13. E14, Alarm Oscillator Failure  

An alternating two tone alarm signal has been activated, but the 2 kHz signal at TP2-1 is not toggling.

 

To troubleshoot this failure, an alternating two tone alarm must be active. active. If there is no error code displayed, trigger an alarm by disconnecting the patient temperature probe while in the patient control mode.

 

If you hear the alarm (i.e. the 2 kHz signal is present), replace the microcontroller (U19). If the problem persists, the I/O expander (U15) may be faulty. Since this is not a socketed chip, control board replacement is recommended.

 

If you you do not hear the alarm (i.e. the 2 kHz kHz signal signal is missing), the timing circuit circuit (U6B) or one of the circuits that gate the timing circuit inputs may be faulty. Since these chips are not socketed, control board replacement is recommended.

4-8

6600-0292-000 102 

 

4/Troubleshooting 14. E15, Software Upset  

A software upset has caused the watchdog timer to time out and the system is unable to recover because critical parameters (e.g. control temperature) stored in the RAM may have been altered.

 

This error does not necessarily indicate a hardware failure. Power the incubator up. If the error does not recur, allow the unit to run for half an hour. Then check the number of recoverable software upsets that have occurred by depressing and holding the Override switch until a new value appears in the control temperature display (approximately ve seconds). If FF appears in the control temperature display, no software upsets have occurred. Complete the Checkout Procedure and return the unit to service.

 

If another value appears in the control display, replace the control board .

15. E16, Safety Relay Test Test Failure  

On power power up, the the safety relay does not not open. open. Repeat the test test by turning turning o the power power,, waiting approximately 5 minutes, and turning the power back on.

 

If the failure recurs, replace the control board.

16. E17, Software Upset    

The software is not cycling through all of the routines and is unable to recover recover.. Power the incubator up. If the error error does not recur recur,, allow the unit to run for half an hour. hour. Then check the number of recoverable software upsets that have occurred by depressing and holding the Override switch until a new value appears in the control temperature display (approximately ve seconds). If FF appears in the control temperature display, no software upsets have occurred. Complete the Checkout Procedure and return the unit to service.

 

If another value appears in the control display, replace the control board .

17. E18, Air Temperature Temperature Sensor Out of Tolerance  

This failure is normally caused by a faulty air temperature temperature sensor sensor.. Power Power the unit up from from a cold start with an air control temperature of 39°C. When the error occurs, observe the dierence between the air control and air display thermistor readings by pressing and holding the Override switch until the air control temperature appears in the patient temperature display (approximately ve seconds). Compare this temperature to the air display temperature. If the dierence exceeds 0.5°C, replace the air temperature sensor and repeat the test. If the error persists, replace the control board.

18. E19, Software Upset  

The watchdog timer has timed out 256 times since power up. This error can be caused by a software upset and does not necessarily indicate a hardware h ardware failure.

 

Power the incubator up. If the error error does not recur recur,, allow the unit to run for half an hour. hour. Then check the number of recoverable software upsets that have occurred by depressing and holding the Override switch until a new value appears in the control temperature display (approximately ve seconds). If FF appears in theProcedure control temperature software upsets have occurred. Complete the Checkout and returndisplay, the unitno to service.

 

If another value appears in the control display, replace the control board.

 

6600-0292-000 102 

4-9

 

4/Troubleshooting 4.2 Power Up Tests When power is rst applied, the following self tests are performed. Specic test information for troubleshooting purposes is given in Section 4.1.B. 1. Instruction Test (E01) 2. EPROM Checksum Test (E04) 3. RAM Test (E05) The power up test sequence is accompanied by a series of power up displays: 1. An alternating two tone audible alarm sounds sounds for approximately ve seconds, seconds, all the indicators illuminate and 188.88 appears in the temperature displays. 2. All indicators go out except the air control control and the enable indicators. indicators. The temperature displays change to show from left to right: Patient Te Temperature

Air Te Temperature

Control Te Temperature

XX.XX (software revision 01.01 etc.)

60.H (AC frequency50.H for 50 Hz models)

39.0°C (max. manual control temp.)

3. An operator prompt tone tprompt one sounds the control control temperature 33.0°C. The operator toneand will sound everytemperature two secondsdisplay until a ashes control temperature is entered.

4.3 On Line Testing The incubator continuously performs the following tests during normal operation. An error in any of the tests triggers the system failure alarm. The corresponding error code will appear in place of the control temperature. Specic test information for troubleshooting purposes is given in Section 4.1.B.   1. ADC Calibration Test (E02 and E03)   2. ADC Failure (E07)   3. S/O Circuit Not Working (E08)   4. Incorrect Dipswitch Setting (E09)   5. Air Display Sensor Bad (E10)   6. Air Control Sensor Bad (E11)   7. Heater Not Switching On or O (E12 or E13)   8. Alarm Oscillator Test (E14)   9. Software Upset Upset,, Watchdog Timer (E15) 10. Software Upset, Not Cycling Through All Routines (E17) 11. Air Temperature Sensor Out of Tolerance (E18) 12. Software Upset, Excessive Watchdog Resets (E19)

4-10

6600-0292-000 102 

 

4/Troubleshooting 4.4 On Demand Testing There are two types of on demand testing: a combination RAM Memory display loop that cycles through the power up tests and checks display board functions; and special switch activated displays, which display various parameters to aid in diagnosing problems. The specic troubleshooting applications of individual on demand tests are discussed in Section 4.1.B.

A. RAM Memory Display Loop 1. Self Tests

Important: 

 

To enter this loop depress and hold the Override switch while powering up the unit. The microcontroller cycles through a series of self tests, including:

       

All of the power up tests Instruction Test (E01) EPROM Checksum Test (E04) RAM Test (E05)

                 

The following on line self tests ADC High Calibration Failure (E02) ADC Low Calibration Failure (E03) ADC Failure (E07) Air Display Sensor Bad (E10) Air Control Sensor Bad (E11) Heater Not Switching On (E12) Heater Not Switching O (E13) Alarm Oscillator Failure (E14)

Unless you specically want to repeat the power up tests, troubleshooting should be performed in the normal operational modes. 2. Displays  

The display loop runs simultaneously with the self tests, displaying frames of data and testing for proper LED operation. Frames are cycled as follows: Temperature Displays Frame

Patient Temp.

Air Temp.

Control Temp.

1. 2.* 3. 4. 5.

——— All displays blank; Alternating two tone alarm ——— rs 232 PASS /FAIL Patient Temp. Air Display Temp. Air Control Temp. Low Cal. Point High Cal. Point %Nom. Voltage x .1 ——— All displays read 188.88 and all LEDs illuminate ———

 

6600-0292-000 102 

4-11

 

4/Troubleshooting B. Switch Activated Displays In normal operation, the Alarm Silence, the Enable, the Override, the F/C, the Patient Control, and the Air Control switches activate service displays when held down for more than ve seconds. An alarm also sounds to indicate that actual patient and air temperatures are not displayed. The normal display reappears when you release the switch. The following table summarizes the data that will be displayed when each switch is depressed and held for at least ve seconds. It is intended as a quick reference. Switch applications for troubleshooting are discussed in Section 4.1.B under the individual error codes. Important: 

Continue to hold down the switch for as long as you wish to view the special service display. The normal display reappears when you release the switch.

Switch Alarm* Silence Enable

Patient Te Temperature 188.88

Air Te Temperature 188.88

Control Te Temperature 188.88

Low cal. point (nominal 25.05°C)

High cal point (nominal 37.97°C)

Over Ov erri ride de Air Air cont contro roll temp temp (XX.XX C Format)

Air display temp (XX.XX C Format)

Air Control

XX.YY (XX = avg. power, YY =% max. power)

% of nominal voltage XX.XX = XXX.X%; 100 ± 2% at 115 VAC (Ok if between 90 & 110%) FF - # software upsets (hexadecimal down counter) Air control temp or DET (updated every 10 min)

00.00

Fan RAM

°F/°C

Patient Control

Patient temp (XX.XX C Format; includes temps outside normal range) Patient temp

(XX.XX C Format; includes temps outside normal range) ADC counts for Blank patient temperature thermistor.

* All display board LEDs illuminate to test proper operation.

ADC counts for line voltage

4-12

6600-0292-000 102 

 

4/Troubleshooting 4.5 Test Points Control board test points are accessible when the controller is removed from the unit. Specic application of test point readings to various error codes is discussed in Section 4.1.B. Individual test points and their expected readings are as follows: Important: 

The 1.0 reference voltage varies by up to 20 percent between units. Hence thermistor resistance rather than signal voltage should be used to check temperature measurements. Reference the appendix tables for summaries of the resistance versus temperature or percent of nominal voltage for the various ADC inputs. Tes estt Poi Point nt

Desc De scrrip ipti tion on & Rea Readi ding ng

TP1-20 TP1-28 TP1-1 TP1-21 TP1-8 TP1 P1-4 -4 TP1-17 TP1 P1-6 -6

9.8 ± 0.05 Vdc* + 5 Volts Disp (5 ± 0.3 Vdc) + 5 Volts Stby (5 ± 0.3 Vdc) + 8 Volts Unregulated (8 ± 1.5 Vdc) Fan Sensor (3.0 Vdc)* 2 kH kHz Fr Freq eque uenc ncyy (2 (2 kHz kHz ± 100 100 Hz) z)** (me (meas asur ure e dur durin ing g cal calib ibrrat atio ion n lo loop op)) Heater Co Con ntrol Signal (Low = Hea eatter ON) S/O S/ O Air Air Di Disp spla layy Sen Senssor Sh Sho ort or Op Open en Si Sign gnal al (l(low ow = sen senssor ci cirrcu cuit it shorted or open) OT Air Air Di Disp spla layy Ov Over Tem empe pera ratu turre Sig Signa nall (hi (high gh = hig high h tem temp p. ala alarm rm active) Air Display Signal Alar Al arm m si sign gnal al,, wh when en ju jump mped ed wi with th TP TP11-1 1 wi willll sh shor ortt au audi dio o tr tran ansd sduc ucer er to temporarily silence alarm (FOR USE US E DURING SERVICE ONLY!) Ground Battery Vo Voltag age e (+ (+9 Vo Volts ST STBY (9 (9 ± 0.3 Vd Vdc)

TP1 P1-7 -7 TP1-5 TP1TP 1-2 2 TP1-24 TP1-25

* Refer to calibration section for adjustment procedure.

 

 

Notes

6600-0292-000 102 

4-13

4-14

6600-0292-000 102 

 

5/Repair Procedures WARNINGS: 

w  Before any disassembly or repair, disconnect the electrical supply suppl y and any

gas supply connections. Also remove any accessories. Do not perform any service or maintenance with the power applied unless specically told to do so in the procedure. w  Disconnect power to the incubator and allow the heater to cool adequately

before servicing or cleaning to avoid the danger of a burn. w  Never oil or grease oxygen equipment unless a lubricant that is made and

approved for this type of service is used. Oils and grease oxidize readily, and in the presence of oxygen, will burn violently. Vac Kote is the oxygen service lubricant recommended (Stock No. 6700-0092-200). CAUTIONS: 

w  Insulation on the electrical wiring can deteriorate with with age. When performing performing

the Checkout Procedure, check for brittle or deteriorated insulation on the power cord. s  Use the Static Control Control Work Station Station (Stock No. 0175-2311-00) to help ensure ensure

that static charges are safely conducted to ground. The Velostat material is conductive. Do not place electrically powered circuit boards on it.

5.1 Hood Repair Important: 

In cases where total disassembly is not required, replacing an end porthole for example, perform only the necessary steps. Refer to Figures 5-1, 5-2 and 5-3. 1. Turn the power switch OFF and unplug the unit unit.. 2. If the incubator was previously previously on, allow it to cool for at least 15 minutes. 3. To remove remove front door door, remove the the "E" type retaining rings from the pins on both sides of the door hinge. To release the door pull either hinge pin out of the hinge. 4

Remove the inner wall as shown in Figure 5-1. Press up on the center of the wall until it exes enough to free the two inside inner wall fasteners from their holes, then slide the wall torward the incubator so that the two outside fastners slide along their keyhole slots and out the large holes at the slots end. If the rear inner wall is installed, it can be removed in a way similar to the front inner wall.

 

6600-0292-000 102 

5-1

 

5/Repair Procedures

   8    3    0  .    3    2  .    I

   C

1 0 0  0%    7 5  7  5 %  5 0 %  2 5  5 %  % 

> 3 7  3 7  C  °   

F  /   C 

°   

°   

Figure 5-1 Remove the Inner Wall

5. To remove the outer hood (Figure 5-2): a. Lower the outer hood. b. Remove the air temperature temperature sensor from from the hood by: by: unscrewing the nut and screw that anchors the sensor cable; removing the two Phillips head screws that hold the sensor mounting blocks and spacers in position; and then sliding the air temperature sensor out of the hood. c. Remove the nut and screw that attach the hood to the hood tilt latch (rear (rear,, right hand corner of the incubator). d. Remove the two cap head shoulder bolts used used to secure the the back of the hood to the base hinges.

5-2

6600-0292-000 102 

 

5/Repair Procedures

Mounting Block Air Temperature Shims

Hinge Screw Mounting Block Screws

Cable Anchor Hinge Nut

   0    5    1  .    2    0  .    I

   C

Filter Cover

Filter Mounting Knobs

Figure 5-2 Remove the Outer Hood

6. Remove hood hardware as follows (Figure 5-3): a. To remove remove the portholes, unscrew unscrew the mounting posts on either side. On double-walled units this means you may have to remove the inner wall. b. To remove remove the hood frame, rst remove the outer hood. Then Then remove the hinge covers, the nut and screw that secure the hood tilt latch, and the caphead shoulder bolts that hold the hood frame and corner brackets in position.

 

6600-0292-000 102 

5-3

 

5/Repair Procedures

Rear Hoodframe Acorn Nut Lockwasher Washer

   6    4    0  .    3    2  .    I

Screw Left Hoodframe

Hood Support Bracket

   C

Acoustic Bae

Right Hoodframe

Figure 5-3 Remove hood hardware

c. To remove the porthole po rthole theporthole portholehousing. and slip the larger larger cu band outremove from under the outercu, ringopen on the d. To remove remove the porthole seal (present on units equipped with the humidier only), open the porthole and slip the seal over the outer ring of the porthole housing. e. To remove remove the iris porthole, porthole, remove the iris iris gasket and the frame can slide out of the hood. Reverse the steps for assembly. Slip the seal over the outer ring on the porthole housing. To install new porthole cus, slip the larger cu band over the outer ring of the porthole housing. To reattach the inner wall insert the two outside fasteners in their keyhole slots and slide the wall untill the two inside fasteners pop into their holes. Note: Be sure that the hood is aligned with the base platform before tightening the cap head shoulder bolts that secure the hood and corner brackets.

5-4

6600-0292-000 102 

 

 

5/Repair Procedures 5.2 Front Door Repair 1. Remove the "E" type retaining retaining rings from from the pins on both sides sides of the door hinge. To remove the door pull either hinge pin out of the door hinge. 2. To remove remove the inner wall press press up on on the center of the wall wall until it exes enough to free the two inside inner wall fasteners from their holes, then slide the wall toward the incubator so that the two outside fasteners slide along the key hole slots and out the large holes at the slots end. 3. To remove the hinge pin, hinge pin bracket bracket,, and deector remove remove the three cap head screws that secure it to the front door. 4. To remove remove a front door latch, remove the retaining washer washer that secures secures the latch. See Figure 5-4. Once the door latches have been removed, they can not be reassembled. Replacement latches must be ordered. 5. To remove the portholes, unscrew the mounting posts on on either side of the port. Spring Washer

Retaining Washer

Outside Inner Wall Mounting Post

Inside Inner Wall Mounting Post

Flat Washer Keyhole Slot Inner Wall Front Door Latch

Door Hinge

Front Door Latch Assembly Spring Washer Flat Washer

Front Door

Porthole

   8    7    0  ,    7    4    0  .    3    2  .    I

Retainer Washer

   C

Inner Wall

Inner Wall Deector Acorn Nut Deector Mount

Latch Door

Figure 5-4

Front Door Disassembly  

6600-0292-000 102 

 

5/Repair Procedures 5.3 Air Temperature Sensor Replacement WARNING: 

w Two people are required to lift the Care Plus Incubator. Follow safe lifting

techniques to avoid injury. Note: The air temperature sensor is located inside the infant compartment and

should not controller. be confused with the fan sensor or the air ow sensor located on the rear of the   1. Remove the rear inner wall wall on double walled units.   2. Lower the outer hood and close the front door. door.   3. Slip the sensor cable out of the retaining clip on the underside of the incubator incubator..   4. Remove the two Phillips head screws and shims that attach the air temperature sensor mounting blocks to the outer hood. Then slide the air temperature sensor out of the hood (Figure 5-2).   5. Unscrew the lter mounting mounting knobs. Remove the lter cover and lter. lter.   6. Unplug the air temperature sensor from the controller controller..   7. Pull the old air temperature temperature sensor assembly out of the incubator. incubator.   8. Connect the new air temperature temperature sensor to the the controller. controller.   9. Slip the new cable into the retaining clip. 10. Route the cable out the rear of the base, through the hole near the air lter, and around the lter. Refer to Figure 6-8 for cable routing. 11. Replace the lter. Secure the lter cover with the lter mounting knobs. The hole on the top of the lter cover should line up with the cable. 12. Open the front door and rotate rotate the hood to the open position. 13. Insert the air temperature sensor through through the hole in the outer hood. Slide the symmetrical mounting block, backed by the two shims, over the sensor from the inside of the hood. Align the cable guard on the other block with the sensor cable on the outside of the hood. Secure the blocks with the two remaining Phillips head screws. 14. Anchor the sensor cable to the outer hood. hood. 15. On double walled units, replace the rear inner wall.

5-5

5-6

6600-0292-000 102 

 

5/Repair Procedures

Mattress

Tilt Assemblies

Mattress Tray

Base Platform Cover

Filter Cover

Filter

Base Platform Lid Slide 1 0  0 0  0 %  %  7 5  5%    5 0  0%      % 2 5  5 %  % 

> 3 7 7  > 3  ° C   

°   

F  /    /  ° C  

Humidier

Controller

   2    1    0  .    3    2  .    I

   C

Figure 5-5 Base Platform Cover Removal

 

6600-0292-000 102 

 

5/Repair Procedures 5.4 Base Platform Cover Replacement 1. Remove the "E" type retaining retaining rings from from the pins on both sides sides of the door hinge. To remove the door pull either hinge pin out of the door hinge. 2. Rotate the hood back into the locked position. 3. Remove the mattress and the mattress tray. 4. To remove remove the tilt assemblies lift the tilt handle out of its slot, then pull the tilt rod just a little up out of its hole. Turn the handle down 90°, then tilt the assemble all the way back while turning it another 90°. Grasp the rod where it enters the hole and pull it straight out. 5. Lift out the base platform cover cover.. 6. Reverse steps 1 through 5 for reassembly.

5.5 Controller Access 1. Disconnect the power cord, cord, the patient probe, the air temperature sensor. sensor. 2. Lift up the controller controller latches and slide the controller controller forward, out of the incubator. CAUTION: 

w

When handling the controller controller,, avoid bumping the fan or the heater. If these items are knocked out of alignment, the fan can grate against either the heater or the base.

3. Remove the Phillips head screws and lock washers used used to attach the controller cover. 4. Lift o the controller cover cover..

s5.6 Control Board Replacement CAUTION: 

w

Make sure the control board connectors are properly aligned before applying power.

1. Access the controller as described in Section 5.5. 2. Disconnect control control board connectors J1, J2, J3, J4, J5 and, if applicable, J6. 3. Remove the four lock nuts nuts that secure the control control board. board. 4. Lift the the board board out out of of the controller controller..

5-7

5-8

6600-0292-000 102 

 

5/Repair Procedures   5. Position the new control board board so that J3 is at the front front of the controller. controller. Replace the four lock nuts to secure the board to its mounting standos (Figure 5-6).   6. Reconnect J1, J2, J3, J4, J5 and, if applicable, J6. Connector pins are numbered for proper alignment.   7. Make sure that switches 1, 2, 7 and 8 are set to OFF (open position). position). This selects a maximum control temperature of 39°C and disables the calibration and service loops. Make sure that dipswitches 3 and 4 are in the same position as on the previous board.   8. Perform the Calibration Procedure Procedure in Section 3.4.   9. Replace the controller cover cover,, using the Phillips head screws and lock washers previously removed. 10. Pull up on the controller latches. Carefully slide the controller back into the incubator.. Push down on the latches incubator latche s to secure the controller controller.. 11. Perform the Checkout Procedure in Section 2.2. Listen Listen for any grating sound caused by the fan rubbing against the base platform. Adjust the fan position if rubbing is present. 12. Perform the Electrical Safety Check in Section 3.5.

Orange Yellow Relay Mounting Nuts Solid State Relay    6    1    1  .    2    0  .    I

Black Red

   C

J2 J5 J4

J1 Lock Nuts (Control Board)

Control Board J3

Screws (Solid State Relay)

Figure 5-6

Controller Interior  

6600-0292-000 102 

5-9

 

5/Repair Procedures s5.7 Display Board Replacement Front Panel Mounting Screws (2) Lock Washer

   7    1    1  .    2    0  .    I

   C

Board Mounting Nuts (5)

Display Board

Figure 5-7 Replace the Display Board

ESD Shield

Front Panel Mounting Screw (3)

5-10

6600-0292-000 102 

 

5/Repair Procedures   1. Access the controller as described in Section 5.5.   2. Turn the controller controller upside down and remove remove the lower three front panel mounting screws, shown in Figure 5-7.   3. Turn the controller controller right side up and remove the remaining remaining front panel mounting screws, shown in Figure 5-7.   4. Lift o o the front panel.   5. Remove the screws, screws, nuts and washers washers that secure the ESD shield, and remove remove the ESD shield and the nylon spacers. See Figure 5-9.   6. Seperate the existing display board from the control panel assembly by disconnecting J7 on the display board.   7. Disconnect J8 from the the existing display board.   8. Connect J8 to the replacement display board.   9. Place the new board component side down on the board standos with J8 pointing toward the bottom of the controller controller.. 10. Connect the control panel assembly ribbon cable to J7 on on the display board 11. Connect the cable from J8 to control control board connector J3. 12. Connect the temperature sensor and power cord to the controller. controller. Plug the power cord into a power outlet and switch the controller ON. 13. If the display is too dim, complete section 3.4C to adjust the brightness. 14. Switch the controller OFF and unplug the power cord and temperature sensor. sensor. 15. To replace the ESD shield: a. Replace the nylon spacers on the standos. b. Check to be sure sure there are no rips in the ESD shield. shield. Thread the cable from from J8 through the slot in the ESD shield. c. Replace the ESD shield, taking care not to rip it. d. Replace the four lock nuts that anchor the board to the controller controller..

 

6600-0292-000 102 

5-11

 

5/Repair Procedures Control Panel Assembly Display Board

ESD Shield

   7    9    1  .    2    0  .    I

   C

Figure 5-9 Display Panel

16. Replace the 5 mounting screws to reattach reattach the front panel as in Figure 5-7. 17. Replace the controller cover, cover, using the Phillips head screws and lock washers previously removed. 18. Pull up on the controller latches. Carefully Carefully slide the controller back into the incubator.. Push down on the latches to secure the controller. incubator controller. 19. Perform the Checkout Procedure in Section 2.2. Listen Listen for any grating sound caused by the fan rubbing against the base platform. Adjust the fan position if rubbing is present. 20. Perform the Electrical Safety Check in Section 3.5.

5-12

6600-0292-000 102 

 

5/Repair Procedures 5.8 Solid State Relay Replacement (Figure 5-6) Note: There are several manufacturers for the solid state relay. The replacement relay may not be identical to the one being replaced.

The solid state relay is located on the same side of the controller as the power socket. It is attached to the controller with two Phillips screws and two lock nuts.   1. Access the controller as described in Section 5.5.   2. Remove the two screws used to to mount the relay relay and the metal oxide varister (if present).   3. Lift the relay relay out of of the controller controller..   4. Remove the screws screws that attach the wires wires to the solid state relay.   5. Install the new metal oxide oxide varister across across terminals 1 and 2 on the relay relay and connect the wires to the new solid state relay as follows: Wire Color

Pin

Orange Yellow Red Black

1 2 3 4

  6. Use the two Phillips screws and the two lock nuts to attach the new relay relay to the side of the controller. Pins 3 and 4 should be b e toward the front of the controller.   7. Replace the controller cover cover,, using the Phillips head screws and lock washers previously removed.   8. Pull up on the controller controller latches. Carefully slide the controller back into the incubator.. Push down on the latches incubator latche s to secure the controller controller..   9. Perform the Checkout Procedure in Section 2.6. Listen for any grating grating sound caused by the fan rubbing against the base platform. Adjust the fan position if rubbing is present. 10. Perform the Electrical Safety Check in Section 3.5.

 

6600-0292-000 102 

 

5/Repair Procedures 5.9 Heater and/or Heater Gasket Replacement CAUTION: 

w

If gaskets are not installed properly, water can leak in during cleaning and damage the electronics.

  1. Access the controller as described in Section 5.5.   2. Unscrew the fan mounting knob at the end of the fan shaft. Remove the fan.   3. Disconnect the thermal thermal switch wires wires and the heater wires.   4. Remove the right heater mounting nut to disconnect disconnect the harness ground ground wire.   5. Remove the four mounting mounting screws that attach the back of the controller to the chassis.   6. Slide the back of the controller controller away from the chassis until it clears the motor motor shaft.   7. Remove the remaining two heater mounting nuts.   8. Pull o the heater. heater.  

Note: The heater gasket will also come o.

  9. Align the heater gasket with the new heater. heater. Then slide the heater into the back of the controller. 10. Secure the heater to the back of the controller controller as shown in Figure 5-10. 11. Slide the back of the controller over the motor motor shaft and replace the four mounting screws into the chassis. 12. Reattach the thermal switch wires, heater wires, wires, and ground wire. 13. The fan is keyed to t the shaft. Slide the fan back onto the shaft so that the at surface with the holes faces toward the heater. 14. Replace and tighten the fan mounting knob to secure the fan. 15. Replace the controller cover, cover, using the Phillips head screws and lock washers previously removed. 16. Pull up on the controller latches. Carefully Carefully slide the controller back into the incubator.. Push down on the latches to secure the controller. incubator controller. 17. Perform the Checkout Procedure in Section 2.2. Listen Listen for any grating sound caused by the fan rubbing against the base platform. Adjust the fan position if rubbing is present. 18. Perform the Electrical Safety Check in Section 3.5.

5-13

5-14

6600-0292-000 102 

 

5/Repair Procedures

Thermal Switch Screws

Fan Knob

Thermal Switch Thermal Switch Gasket

Fan Heater Studs Heater Gasket

Fan Sensor Assembly

Rear Controller Seal Rear Controller Rear Controller Air Seal Motor Shaft Seal

Fan Motor

Fan Motor Shaft

Ferrel Fan Motor Bracket Motor Mount

Figure 5-10 Heater,, Thermal Switch and Fan Sensor Replacement Heater

   2    1    1  .    2    0  .    I

   C

 

6600-0292-000 102 

 

5/Repair Procedures 5.10 Thermal Switch Replacement CAUTION: 

w

If gaskets are not installed properly, water can leak in during cleaning and damage the electronics.

heater. Note: It is not necessary to remove the heater.   1. Access the controller as described in Section 5.5.   2. Unscrew the fan mounting knob and remove the fan.   3. Disconnect the wires attached attached to the thermal switch.   4. Remove the screws securing the thermal switch switch and pull the the thermal switch out of the controller as shown in Figure 5-10. Position your hand inside the controller to catch the mounting nuts and lock washers when you remove the screws. Retain the gasket for use with the new thermal switch.   5. Align the gasket gasket with the new thermal switch switch and replace the mounting hardware as shown in Figure 5-10.   6. Reconnect the thermal switch to the wires from J1switch pin 2 and heater heater. . Make sure that there is clearance between the thermal wiresthe and the motor.   7. Perform Section 3.4.J of the calibration procedures.   8. Replace the controller cover cover,, using the Phillips head screws and lock washers previously removed.   9. Pull up on the controller controller latches. Carefully slide the controller back into the incubator.. Push down on the latches to secure the controller. incubator controller. 10. Perform the Checkout Procedure in Section 2.2. Listen Listen for any grating sound caused by the fan rubbing against the base platform. Adjust the heater and fan position if rubbing is present. 11. Perform the Electrical Safety Check in Section 3.5.

5.11 Fan Sensor Replacement (Applies only to controllers with fan sensor as a s shown in gure 5-10) CAUTION: 

w

If the gaskets are not properly installed, water can leak in during cleaning and damage the electronics.

Note: It is not necessary to remove the heater. heater.

1. Access the controller as described in Section 5.5. 2. Remove the fan from the motor shaft, by removing the knob and sliding the fan o the shaft.

5-15

5-16

6600-0292-000 102 

 

5/Repair Procedures   3. Disconnect the heater wires and the thermal switch switch wires and the harness ground wire. Then remove the back of the controller from the chassis by removing the four mounting screws.   4 Disconnect the fan sensor cable from from the control control board (J5) and remove remove the cable from the two p-clips.   5. Remove the two screws that hold the fan sensor mount to the motor motor..   6. Mount the replacement fan sensor sensor assembly to the motor with the screws and washers from the existing assembly.   7. Route the replacement replacement fan sensor cable through the two p-clips and connect it to J5 on the control board.   8. Attach the back of the controller to the chassis with the four mounting screws. screws. Then reconnect the heater wires, the thermal switch wires and harness ground wire.   9. Slide the fan back on the motor shaft and secure by tightening the knob. 10. Calibrate the fan sensor as described in Section 3.4I. 11. Replace the controller cover, cover, using the Phillips head screws and lockwashers previously removed. 12. Perform the Checkout Procedure in Section 2.6 Controller Controller Check. Listen for any grating sound caused by the fan rubbing against the base platform. Adjust the heater and fan position if rubbing is present. 13. Perform Electrical Safety Check in Section 3.5.

 

6600-0292-000 102 

5-17

 

5/Repair Procedures 5.12 Fan Motor Replacement 1. Access the controller as described in Section 5.5. 2. Unscrew the fan mounting knob and remove the fan (refer to Figure 5-10). 3. Disconnect the heater wires, thermal switch wires and harness ground wire. wire. Then remove the back of the controller from the chassis by removing the four mounting screws. 4. Remove the old air seal. Use isopropyl alcohol to remove remove any adhesive residue on the rear controller. 5. Remove the two mounting screws screws for the fan sensor. sensor. 6. Disconnect the fan motor connector from from J1, and the motor ground ground wire from the controller chassis. 7. Remove the four motor mounting screws and slide the motor out of the bracket bracket and the fan sensor assembly. 8. Pull the small cooling fan o the short short motor motor shaft. 9. Note the orientation of the shock mounts before before removing them from the motor bracket.

Sensor Assembly Mounting Hardware Fan Sensor Assembly Shaft Air Seal Motor Shaft Fan Motor

Fan Motor Mounting Bracket

Screw Washer Shock Mount Ferrule    3    1    1  .    2    0  .    I

   C

Figure 5-11

Fan Motor Replacement 5-18

6600-0292-000 102 

 

5/Repair Procedures 10. Install the new shock mounts in the motor motor bracket. Then install the ferrules in the shock mounts. 11. Attach the new motor to the bracket as shown in Figure 5-11. 12. Push the cooling fan onto onto the shorter motor motor shaft. 13. Reinstall the fan sensor assembly on the motor. motor. 14. Install the new air seal. seal. 15. Slide the long motor shaft through the air seal seal and into the hole in the rear of the controller. controller. Attach the back of the controller to the chassis. 16. Reconnect the heater, heater, thermal switch and ground wires. 17. The fan is keyed to slide onto the motor motor shaft. Slide the fan onto the shaft so the at surface with the holes on the fan points toward the motor. 18. Replace the fan mounting knob. Fully tighten the knob. 19. Connect the motor connector to the connector from J1 and the motor ground wire to the controller chassis. 20. Calibrate the fan sensor as described in Section 3.4 I. 21. Replace the controller cover, cover, using the Phillips head screws and lock washers previously removed. 22. Pull up on the controller latches. Carefully slide the controller back into the incubator.. Push down on the latches incubator latche s to secure the controller controller.. 23. Perform the Checkout Procedure in Section 2.2. Listen Listen for any grating sound caused by the fan rubbing against the base platform. If rubbing is present, adjust the motor and fan position by loosening the motor bracket mounting screws and moving the motor and bracket. 24. Complete the Electrical Safety Check in Section 3.5.

 

6600-0292-000 102 

 

5/Repair Procedures 5.13 Battery Replacement 1. Access the controller as described in Section 5.5. 2. Remove the battery by sliding the battery away from the contacts. contacts. 3. Install the new battery by lining the terminals up with the contacts and sliding the battery into the bracket. 4. Reattach the controller cover cover,, using the Phillips head screws and lock washers previously removed. 5. Pull up on the controller latches. latches. Carefully slide the controller back into the incubator.. Push down on the latches to secure the controller. incubator controller. 6. Perform the Checkout Procedure Procedure in Section 2.3. Listen for any grating sound caused by the fan rubbing against the base platform. Adjust the heater and fan position if rubbing is present. 7. Perform the Electrical Safety Check in Section 3.5.

5.14 Cabinet Caster Replacement WARNING: 

w Two people are required to safely replace a caster. Remove the incubator and

all accessory equipment from the cabinet before replacing a caster.

1. Remove all accessories accessories from the incubator incubator.. 2. Remove the incubator mounting knobs knobs (located inside the cabinet), which attach the incubator to the cabinet. 3. Lift the incubator o the cabinet cabinet.. 4. Lay the cabinet on its side. 5. Remove the four lock nuts nuts that attach the caster to the cabinet.   6. Remove the old caster caster..   7. Slide the new caster over the mounting studs.   8. Replace and tighten the lock nuts to secure the caster caster.. Torque Torque to 75 in-lbs.   9. Turn the cabinet right side up. 10. Attach the incubator to the cabinet with the incubator mounting knobs. knobs.

5-19

5-20

6600-0292-000 102 

 

6/Illustrated Parts 6.1 Hood Components

1

2

3

4 9

11 9

13 12

5 6 10

9

8

7    6    4    0  .    3    2  .    I

   C

Item

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.

Stock Number

Hood frame,............................. left .............. ............................. .............................. ............................. ............................. .............................. ............................. ............................6600-0965-500 ..............6600-0965-500 Hood .............. ............................. ............................. .............................. .............................. ............................. ............................. .............................. ......................6600-0961-500 .......6600-0961-500 Hood frame, rear ............... ............................. ............................. .............................. ............................. ............................. .............................. ..........................6600-0967-500 ...........6600-0967-500 Polyethylene Polyethylen e tape.............. ............................ ............................. .............................. .............................. ............................. ............................. ..........................6600-0110-300 ...........6600-0110-300 Hood frame, right .............. ............................. ............................. ............................. .............................. ............................. ............................. ..........................6600-0966-500 ...........6600-0966-500 Acorn nut 10-32 .............. ............................. .............................. ............................. ............................. .............................. ............................. ............................6600-0736-400 ..............6600-0736-400 Lock washer, washer, split ring #10.............. ............................ ............................. .............................. ............................. ............................. .......................6600-0745-400 ........6600-0745-400 Washer #10............. ............................ ............................. ............................. .............................. .............................. ............................. ............................. ........................6600-0744-400 .........6600-0744-400 Screw,, 10-32 x .62 Phillips Screw Phillips ............... ............................. ............................. .............................. ............................. ............................. .......................6600-0735-400 ........6600-0735-400 Acoustic bae ............... ............................. ............................. .............................. ............................. ............................. .............................. ............................. ..................6600-0983-500 6600-0983-500 Screw,, 10-32 x .75 Phillips .................... Screw .................................. ............................. .............................. ............................. ............................. ..................6600-0089-400 ...6600-0089-400 Hood support bracket ................. ................................ .............................. ............................. ............................. .............................. ............................6600-0964-500 .............6600-0964-500 Screw,, 10 - 32 x .875 Phillips ................. Screw ................................ .............................. ............................. ............................. ..............................6600-0757-400 ...............6600-0757-400

Figure 6-1 Hood frame and hardware

 

6600-0292-000 102 

6-1

 

6/Illustrated Parts

3

2 4

1

1

5

 

   8    4    0  .    3    2  .    I

Item Stock Number 1. Hinge pin ‘E’ clip .............. ............................. ............................. ............................. .............................. ............................. ............................. .............................6600-0300-400 ..............6600-0300-400 2. Hand hole hinge hinge pin .............. ............................ ............................. .............................. ............................. ............................. .............................. .....................6600-0205-400 ......6600-0205-400 3. Hand hole cover cover .............. ............................. ............................. ............................. .............................. ............................. ............................. .............................6600-0498-500 ..............6600-0498-500 4. Hand hole frame frame ............. ............................ .............................. ............................. ............................. .............................. ............................. ............................6600-0274-500 ..............6600-0274-500 5. Hinge spring.............. ............................. .............................. ............................. ............................. .............................. ............................. ............................. ......................6600-0242-400 .......6600-0242-400

Figure 6-2 Hand hole assembly (6600-0561-700)

C

6-2

6600-0292-000 102 

 

6/Illustrated Parts

8 6 8

   9    4    0  .    3    2  .    I

7

   C

1 3 2

4

5

Item Stock Number 1. Kit service iris............... .............................. ............................. ............................. .............................. ............................. ............................. .............................. ...................6600-0037-850 ....6600-0037-850 2. Iris cu kit (10) ............. ............................ .............................. ............................. ............................. .............................. ............................. ............................. ...................6600-0499-800 ....6600-0499-800 3. Iris gasket .............. ............................. .............................. .............................. ............................. ............................. .............................. ............................. ..........................6600-0699-500 ............6600-0699-500 4. Hand hole hole assembly assembly ............. ............................ ............................. ............................. .............................. ............................. ............................. .....................6600-0561-700 ......6600-0561-700 5. Hand hole latch latch ............. ........................... ............................. .............................. ............................. ............................. .............................. .............................. ................. 6600-0202-700 6. Hand hole post (small) (small)............... .............................. ............................. ............................. .............................. ............................. ............................. ................. 6600-0969-500 7. Hand hole post (large) (large) ............... .............................. ............................. ............................. .............................. ............................. ............................. ................. 6600-0968-500 8. Screw 10-24 x .375, Skt Skt Hd cap .............. ............................. ............................. ............................. .............................. ...........................6600-0081-500 ............6600-0081-500

Figure 6-3

Iris porthole assembly

 

6600-0292-000 102 

6-3

 

 

6/Illustrated Parts 2 3

4

5

1

Item 19 Door Latch Kit Detail

17

   8    7    0  .  ,    7    4    0  .    3    2  .    I

   C

Spring Washer

16

18

6 7 8

Flat Washer

Inner Wall

9 10 11

15

Latch

14 13

12

Door

Item Stock Number 1. Front door* door* .............. ............................ ............................. .............................. .............................. ............................. ............................. .............................. ........................6600-0970-500 .........6600-0970-500 2. Hand hole hole post (large) (large) ............... .............................. ............................. ............................. .............................. ............................. ............................. ................. 6600-0968-500 3. Screw Screw,, 10-24 x .375, Skt Hd Cap Cap ............. ............................ ............................. ............................. .............................. ...........................6600-0081-400 ............6600-0081-400 4. Hand hole post (small) (small)............... ............................. ............................. .............................. ............................. ............................. .............................. ................. 6600-0969-500 5. Inner wall, wall, front...... front..................... .............................. ............................. ............................. .............................. ............................. ............................. ........................6600-0976-500 .........6600-0976-500 6. Retaining washer (included with item 18) 7. Spring washer washer ............. ............................ ............................. ............................. .............................. ............................. ............................. .............................. ...................6600-0218-400 ....6600-0218-400 8. Washer Washer,, .81 OD .41 ID ............. ............................ .............................. ............................. ............................. .............................. ............................. ..................6600-0173-400 ....6600-0173-400 9. Screw Screw,, 1/4 - 28 x 1.5, Phillips ............... ............................. ............................. .............................. ............................. ............................. ..................6600-0739-400 ...6600-0739-400 10. Lock washer washer,, split ring, 1/4 ................ ............................... ............................. ............................. .............................. ............................. ....................6600-0751-400 ......6600-0751-400 11. Washer Washer,, 1/4 ............. ............................ ............................. ............................. .............................. ............................. ............................. .............................. ........................6600-0750-400 .........6600-0750-400 12. Deector mount .............. ............................. ............................. ............................. .............................. ............................. ............................. .............................6600-0985-500 ..............6600-0985-500 13. Inner wall deector ............. ............................ .............................. ............................. ............................. .............................. ............................. .......................6600-0971-500 .........6600-0971-500 14. Acorn nut 1/4 -28 ....................... ...................................... .............................. ............................. ............................. .............................. ............................. ..................6600-0762-400 6600-0762-400 15. Front door hinge ............................ .......................................... ............................. .............................. ............................. ............................. .............................6600-0972-500 ..............6600-0972-500 16. Hand hole latch .................... ................................... ............................. ............................. .............................. ............................. ............................. ........................6600-0202-700 .........6600-0202-700 17. Hand hole.......................... ......................................... .............................. ............................. ............................. .............................. ............................. .............................6600-0561-700 ...............6600-0561-700 18. Door latch (includes item 6) .................................. ................................................ ............................. .............................. ............................. ................ 6600-0974-500 19. Door latch kit (includes 2 latches and all hardware) .............. ............................ ............................. ................6600-0616-800 .6600-0616-800 *Must order door latch kit when replacing door

Figure 6-4 Front door and inner wall assembly

Retainer Clip

6-4

6600-0292-000 102 

 

6/Illustrated Parts 6.2 Hood Latch Assembly, Compartment Probe and Related Items 1 2

3

4 5 18 17

6 7 8

16 15 14 9    5    4    0  .    3    2  .    I

   C

13 12 11 10 Item Stock Number 1. Sensor assembly assembly ............. ............................ .............................. ............................. ............................. .............................. ............................. ............................6600-0495-701 ..............6600-0495-701 2. Sensor shim............. ............................ ............................. ............................. .............................. ............................. ............................. .............................. ........................6600-0222-500 .........6600-0222-500 3. Hood assembly.............. ............................ ............................. .............................. ............................. ............................. .............................. ............................. ..................6600-0083-850 6600-0083-850 4. Screw Screw,, 1/4 - 20 x .44 Skt Hd Shldr ............... .............................. ............................. ............................. .............................. ......................6600-0737-400 .......6600-0737-400 5. Screw Screw,, #8 x 1.00 Truss Hd............. ............................ .............................. ............................. ............................. .............................. .........................6600-0083-400 ..........6600-0083-400 6. Lock washer washer, split ring 1/4............... ............................. ............................. .............................. ............................. ............................. .......................6600-0473-400 ........6600-0473-400 7. ‘P’ clip cable cable clamp ............. ............................ .............................. ............................. ............................. .............................. ............................. .......................6600-0144-400 .........6600-0144-400 8. Nut, elastic lock 8-32 .............. ............................. .............................. ............................. ............................. .............................. .............................. ..................0202-1008-300 ...0202-1008-300 9. Knob, lter cover ............. ............................ .............................. ............................. ............................. .............................. ............................. ............................6600-0982-500 ..............6600-0982-500 10. Filter cover ................................... ................................................. ............................. .............................. ............................. ............................. .............................. ...................6600-0981-500 ....6600-0981-500 11. Filter assembly ................... .................................. .............................. .............................. ............................. ............................. .............................. ..........................6600-0105-300 ...........6600-0105-300 12. Screw Screw,, 8-32 x 1/2 Phillips ................. ............................... ............................. .............................. ............................. ............................. .......................0140-6627-108 ........0140-6627-108 13. Hood latch gravity lock ............. ............................ ............................. ............................. .............................. ............................. ............................. ................. 6600-0963-500 14. Acorn nut 10-32 1 0-32 .......................... ......................................... .............................. ............................. ............................. .............................. .............................. ................. 6600-0736-400 15. Lock washer washer,, split ring #10.............. ............................ ............................. .............................. ............................. ............................. .......................6600-0745-400 ........6600-0745-400 16. Hood latch spacer............. ............................ ............................. ............................. .............................. ............................. ............................. ..........................6600-1009-500 ...........6600-1009-500 17. Screw Screw,, 10-32 x .875 Phillips............... .............................. ............................. ............................. .............................. .............................. ....................6600-0757-400 .....6600-0757-400 18. Hood latch locking bracket............. ........................... ............................. .............................. ............................. ............................. .......................6600-0962-500 ........6600-0962-500

Figure 6-5

Incubator assembly, lter and hood latch

 

6600-0292-000 102 

 

6/Illustrated Parts 6.3 Base Platform Components Item Stock Number 1. Tubing access cover......... cover........................ ............................. ............................. .............................. ............................. ............................. ..........................6600-0330-501 ...........6600-0330-501 2. Door latch masking masking patch patch .............. ............................. .............................. ............................. ............................. .............................. .......................6600-1837-100 ........6600-1837-100 3. Platform cover .............. ............................. .............................. ............................. ............................. .............................. ............................. ............................. ...................6600-0345-501 6600-0345-501 4. Tilt rod, left ............... ............................. ............................. .............................. ............................. ............................. .............................. ............................. ........................6600-0978-500 ..........6600-0978-500

5. 6. 7. 8. 9. 10. 11. 12. 13.

Tilt rod holder .............. ............................. ............................. ............................. .............................. ............................. ............................. .............................. ...................6600-0979-500 ....6600-0979-500 Tilt rod, right right .............. ............................. .............................. ............................. ............................. .............................. ............................. ............................. ......................6600-0977-500 .......6600-0977-500 Humidier hole plug .............. ............................ ............................. .............................. ............................. ............................. .............................. .....................6600-0762-500 ......6600-0762-500 Humidier sump sump.............. ............................. ............................. ............................. .............................. ............................. ............................. .............................6600-1012-500 ..............6600-1012-500 Humidier slide .............. ............................ ............................. .............................. ............................. ............................. .............................. ............................. ..................6600-1013-500 6600-1013-500 Humidier lid lid ............................  ........................................... ............................. ............................. .............................. ............................. ............................. ......................6600-1011-500 .......6600-1011-500 Humidier gasket .............. ............................ ............................. .............................. ............................. ............................. .............................. ..........................6600-0433-500 ...........6600-0433-500 Mattress tray......... tray....................... ............................. .............................. ............................. ............................. .............................. ............................. ..........................6600-0980-500 ............6600-0980-500 Mattress ............... ............................. ............................. .............................. ............................. ............................. .............................. ............................. .............................6600-0984-500 ...............6600-0984-500

   

Humidier upgrade kit (includes items 8-11 above plus mounting rails) ............. ............................ ............................. .......................6600-0574-800 .........6600-0574-800

6-5

6-6

6600-0292-000 102 

 

6/Illustrated Parts

2

1 3

4 13

5 6 12 7

11 10 9    1    5    0  .    3    2  .    I

   C

8

Figure 6-6

Base platform, humidier and cover assembly

 

6600-0292-000 102 

 

6/Illustrated Parts Item Stock Number 1. Base platform platform Kit ............... ............................. ............................. .............................. ............................. ............................. .............................. ..........................6600-0100-850 ...........6600-0100-850 2. Humidier slide, right .............. ............................. .............................. ............................. ............................. .............................. ............................. ..................6600-0676-500 ....6600-0676-500 3. Humidier slide, left ............... ............................. ............................. .............................. ............................. ............................. .............................. .....................6600-0677-500 ......6600-0677-500 4. Screw Screw,, locking 8-32 x 5/8 Phillips Phillips ............. ............................ .............................. ............................. ............................. .........................6600-0523-400 ..........6600-0523-400 5. Lock washer washer,, #8 int tooth.... tooth................... .............................. ............................. ............................. .............................. ............................. ....................6600-0262-400 ......6600-0262-400 6. Screw Screw,, #8-32 x 1/4 Phillips .............. ............................ ............................. .............................. ............................. ............................. .......................6600-0248-400 ........6600-0248-400 7. ‘P’ clip cable cable clamp ............. ............................ .............................. ............................. ............................. .............................. ............................. .......................6600-0144-400 .........6600-0144-400

8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19.

Controller latch, left ............... ............................. ............................. .............................. ............................. ............................. .............................. .....................6600-0225-500 ......6600-0225-500 Screw,, 8-32 x 3/8 Phillips Screw Phillips .............. ............................. ............................. ............................. .............................. ............................. .........................0140-6127-106 ...........0140-6127-106 Controller latch, right ................... .................................. ............................. ............................. .............................. .............................. ............................6600-0226-500 .............6600-0226-500 Screw,, 8-32 x .38 Phillips ............... Screw .............................. ............................. ............................. .............................. ............................. .........................6600-0261-400 ...........6600-0261-400 Washer,, .188 ID x .438 OD .................................. Washer ................................................. ............................. ............................. .............................. ..................6600-0080-400 ...6600-0080-400 Cable tie 1/4 ...................... .................................... ............................. .............................. ............................. ............................. .............................. .............................6600-0585-400 ..............6600-0585-400 Screw,, 8 x 3/8 Phillips.. Screw Phillips................. ............................. ............................. .............................. ............................. ............................. .............................. ................. 6600-0767-400 Cap and chain ............... .............................. .............................. ............................. ............................. .............................. ............................. ............................. ...................0217-3785-700 0217-3785-700 Nipple 1/8 NPT x 3/16............. ............................ .............................. ............................. ............................. .............................. ............................. ..................6600-0102-400 ....6600-0102-400 Nut 1/8 NPT x .125† ............... ............................. ............................. .............................. ............................. ............................. .............................. .....................6600-0176-500 ......6600-0176-500 Power cord (North America) ............................ .......................................... ............................. .............................. ............................. ....................0208-0950-300 ......0208-0950-300 Sensor assembly .................. ................................. ............................. ............................. .............................. ............................. ............................. ........................6600-0495-701 .........6600-0495-701

† Apply Loctite 242

6-7

6-8

6600-0292-000 102 

 

6/Illustrated Parts 4

5

6

7 9

3 8

10

2 11 12 1 13

   2    5    0  .    3    2  .    I

   C

14 19

15 16

18 17

Figure 6-7 Base platform assembly

 

6600-0292-000 102 

 

6/Illustrated Parts 6.4 Cabinet Components Item Stock Number 1. Bottom panel............... .............................. ............................. ............................. .............................. ............................. ............................. .............................. ...................6600-0991-500 ....6600-0991-500 2. Caster Caster,, locking ............. ............................ ............................. ............................. .............................. ............................. ............................. .............................. ...................6600-0993-500 ....6600-0993-500 3. Caster Caster,, non-locking............. ............................ .............................. ............................. ............................. .............................. ............................. .......................6600-0994-500 .........6600-0994-500 4. Nut, 5/16-24 ............. ............................ .............................. .............................. ............................. ............................. .............................. ............................. .....................6600-0748-400 .......6600-0748-400

5. 6. 7. 8. 9. 10. 11. 12.

Lock washer, washer, 5/16 helical.............. ............................. ............................. ............................. .............................. ............................. .........................6600-0747-400 ...........6600-0747-400 Flat washer washer,, 5/16 ................. ................................ ............................. ............................. .............................. ............................. ............................. ........................6600-0746-400 .........6600-0746-400 Cap screw, screw, 5/16 - 24 x .75 .............. ............................. .............................. ............................. ............................. .............................. .......................6600-0731-400 ........6600-0731-400 Side panel.............. ............................. .............................. ............................. ............................. .............................. ............................. ............................. ...........................6600-0989-500 ............6600-0989-500 Nut, #10 - 32 32............. ............................ .............................. ............................. ............................. .............................. ............................. ............................. ......................6600-0749-400 .......6600-0749-400 Lock washer washer,, #10 helical ............... .............................. ............................. ............................. .............................. ............................. .........................6600-0745-400 ...........6600-0745-400 Flat washer washer,, #10 .......................... ......................................... .............................. ............................. ............................. .............................. ............................. ..................6600-0744-400 6600-0744-400 Cap screw, #10-32 x .50 .................. ................................. .............................. ............................. ............................. .............................. .......................6600-0730-400 ........6600-0730-400

6-9

6-10

6600-0292-000 102 

 

6/Illustrated Parts

2 1

3

4 5 6

7

8

12 9 10

11

12

Figure 6-8 Casters and base

   1    6    0  ,    0    6    0  .    3    2  .    I

   C

 

6600-0292-000 102 

6-11

 

6/Illustrated Parts 1 2 3 4

6

5 7 8

9 10

   3    6    0  ,    2    6    0  .    3    2  .    I

   C

Item Stock Number 1. Top panel............... .............................. .............................. ............................. ............................. .............................. ............................. ............................. ...........................6600-0990-500 ............6600-0990-500

2. 3. 4. 5. 6. 7. 8. 9. 10.

Cap screw #10-32 x.............................. .50 ............. ............................ .............................. ............................. ............................. .............................. ............................6600-0730-400 .............6600-0730-400 Nut, screw, #10 - ,32 32............. ............................ ............................. ............................. .............................. ............................. ............................. ......................6600-0749-400 .......6600-0749-400 Lock washer washer, #10 helical ............... .............................. ............................. ............................. .............................. ............................. .........................6600-0745-400 ...........6600-0745-400 Flat washer, washer, #10 .............. ............................. ............................. ............................. .............................. ............................. ............................. .............................6600-0744-400 ..............6600-0744-400 Rear panel (optional) (optional) ............. ............................ ............................. ............................. .............................. ............................. ............................. .....................6600-0988-500 ......6600-0988-500 Shelf (optional) (optional) ............... ............................. ............................. .............................. ............................. ............................. .............................. ............................. ..................6600-0987-500 6600-0987-500 Front panel panel with doors (optional) (optional) ............. ............................ .............................. ............................. ............................. .........................6600-0992-500 ..........6600-0992-500 Handle ............... .............................. ............................. ............................. .............................. ............................. ............................. .............................. ............................. ................. ...6600-0997-500 6600-0997-500 Door Magnet .................. ................................. .............................. ............................. ............................. .............................. ............................. ............................. ...................6600-1010-500 6600-1010-500

Parts Not Shown   Hole plug (for all holes except I.V I.V.Pole .Pole mounting holes) ............. ............................ .......................6600-0759-400 ........6600-0759-400   Cabinet Upgrade Kit (includes optional items above) ............... ............................. .........................6600-0577-800 ...........6600-0577-800   Basic Cabinet Kit ............. ............................ ............................. ............................. .............................. .............................. ............................. ............................6600-0589-800 ..............6600-0589-800

Figure 6-9

Cabinet parts

6-12

6600-0292-000 102 

 

6/Illustrated Parts

2

6 5

4

10

1 11

3

7 8

9

13 12    5    6    0  ,    4    6    0  .    3    2  .    I

   C

Item Stock Number 1. I.V I.V.. pole telescoping telescoping (1) .............. ............................. ............................. ............................. .............................. ............................. ............................. ................. 6600-0556-700 2. I.V I.V.. pole hanger(1)............... ............................. ............................. .............................. ............................. ............................. .............................. ..........................6600-0995-500 ...........6600-0995-500 3. U-bolt with with plate and nuts nuts (1) ............. ............................ ............................. ............................. .............................. ............................. .................6600-0733-400 ...6600-0733-400

4. 5. 6. 7. 8. 9. 10. 11. 12. 13.  

Screw Screw, #10-32 x 1.00 skt(1)btn hd cap (1) ............. ............................ .............................. ............................. ..........................6600-0732-400 ............6600-0732-400 Acorn, nut, nu t, #10-32 lock ............................. ............... ............................. .............................. ............................. ............................. .......................6600-0741-400 ........6600-0741-400 Tubing (1) ............. ............................ ............................. ............................. .............................. ............................. ............................. .............................. .............................6600-0111-300 ..............6600-0111-300 Screw,, #10-24 hex sch shlder(1) Screw shlder(1) ............. ............................ ............................. ............................. .............................. ...........................6600-0761-400 ............6600-0761-400 Washer .200 ID, .440 OD (2) .............. ............................. .............................. ............................. ............................. .............................. ....................0202-4518-340 .....0202-4518-340 Nut, #10-24 hex (1) ............. ............................ .............................. ............................. ............................. .............................. ............................. .......................0144-3130-113 .........0144-3130-113 Split lock washer washer,, 1/4" (2)............... .............................. ............................. ............................. .............................. ............................. .........................6600-0473-400 ...........6600-0473-400 I.V.. pole label.............. I.V label............................. .............................. .............................. ............................. ............................. .............................. ............................. .....................6600-2229-101 .......6600-2229-101 Bumper (optional (optional)) (2) ......................... ........................................ .............................. ............................. ............................. .............................. .......................6600-1015-500 ........6600-1015-500 Cap screw, #10 - 32 x 5/8 (4) ............... ............................. ............................. .............................. ............................. ............................. ..................6600-0758-400 ...6600-0758-400 I.V. pole kit (includes items 1-11) .............................. I.V. ............................................. ............................. ............................. .........................6600-0576-800 ..........6600-0576-800 Bumper Kit (includes items 12 & 13) .................... ................................... ............................. ............................. ...........................6600-0578-800 ............6600-0578-800

Figure 6-10 I.V. pole and bumpers

 

6600-0292-000 102 

 

6/Illustrated Parts 6.5 Controller Components Item Stock Number 1. Screw Screw,, 6-32 x 7/8 TRS PH .............. ............................. ............................. ............................. .............................. ............................. .........................6600-0150-400 ...........6600-0150-400 2. Washer, at #6 ............... ............................. ............................. .............................. ............................. ............................. .............................. ............................. ..................0202-4510-340 0202-4510-340 3. Shock mount............. ............................ .............................. ............................. ............................. .............................. ............................. ............................. ......................6600-0105-400 .......6600-0105-400 4. Bushing, shock shock mount............... ............................. ............................. .............................. .............................. ............................. ............................. ................. 6600-0341-500

5.   6.       7. 8. 9. 10. 11. 12. 13. 14.   15. 16. 17. 18. 19. 20. 21. 22. 23. 24  

Motor bracket, bracket, 50 Hz .............. ............................. .............................. ............................. ............................. .............................. ............................. ..................6600-0518-500 ....6600-0518-500 Note: The 60 Hz motor bracket (6600-0517-500) is no longer available. Order the 60 Hz motor kit (6600-0054-800) instead. Motor kit, 100/120/220/240V, 60Hz† ............. ............................ ............................. ............................. .............................. .................6600-0054-800 ..6600-0054-800 † Motor kit, 100/120V, 50 Hz ............. ............................ ............................. ............................. .............................. ............................. ....................6600-0054-802 ......6600-0054-802 † Motor kit, 220/240V, 50 Hz ............. ............................ ............................. ............................. .............................. ............................. ....................6600-0054-801 ......6600-0054-801 † Motor kit, 120V 120V,, 50 Hz ............. ........................... ............................. .............................. .............................. ............................. ............................. ................. 6600-0054-803 Bracket edge protector (3" long) long)............. ........................... ............................. .............................. ............................. ...........................6600-0123-400 .............6600-0123-400 Airseal, motor shaft* ................... .................................. .............................. ............................. ............................. .............................. ............................6600-0471-500 .............6600-0471-500 Washer,, lock, #6 split ring............. Washer ............................ ............................. ............................. .............................. ............................. .........................6600-0345-400 ...........6600-0345-400 Screw,, 6-32 x 1/2, RD, PH ................... Screw .................................. ............................. ............................. .............................. ............................. ....................0140-6124-108 ......0140-6124-108 Fan sensor kit (includes item 8). .............. ............................ ............................. .............................. ............................. ...........................6600-0403-800 .............6600-0403-800 Washer,, lock , #8 int tooth ................. Washer ................................ ............................. ............................. .............................. ............................. ....................6600-0262-400 ......6600-0262-400 Nut, 8-32, ext tooth lock lock............. ............................ .............................. ............................. ............................. .............................. ............................0202-1131-300 .............0202-1131-300 Transformer,, 100/120V ................................ Transformer ............................................... .............................. ............................. ............................. ..........................0208-7580-300 ...........0208-7580-300 Transformer kit, 220/240V ............. ............................ .............................. ............................. ............................. .............................. .......................6600-0145-800 ........6600-0145-800 Controller Latch Kit (1/pkg).... (1/pkg).................. ............................. .............................. ............................. ............................. .............................. ..................6600-0108-800 ...6600-0108-800 Spacer,, 6-32 .............. Spacer ............................. .............................. ............................. ............................. .............................. ............................. ............................. ......................6600-0376-400 .......6600-0376-400 Washer,, lock, # 6 int tooth , ............. Washer ............................ ............................. ............................. .............................. ............................. ....................6600-0399-400 ......6600-0399-400 Nut, 8-32, ext lock ............... .............................. ............................. ............................. .............................. ............................. ............................. ........................0202-1131-300 .........0202-1131-300 Circuit breaker bracket ....................... ..................................... ............................. .............................. ............................. ............................. .....................6600-0864-500 ......6600-0864-500 Screw,, 6-32 x 1/4 TRS, PH ......................... Screw ........................................ .............................. ............................. ............................. ............................0140-6624-104 .............0140-6624-104 Circuit breaker (5 amp)ˆ ............................ ........................................... ............................. ............................. .............................. ............................6600-0562-604 .............6600-0562-604 Spacer,, threaded, 6-32 x 1/4 .............. Spacer ............................ ............................. .............................. ............................. ............................. ..................6600-0377-400 ...6600-0377-400 Slide rail .............................. ............................................. .............................. ............................. ............................. .............................. ............................. .............................6600-0167-500 ...............6600-0167-500 Controller chassis (beige) .............. ............................. ............................. ............................. .............................. ............................. .........................6600-0469-500 ...........6600-0469-500 Controller chassis (light grey) .............. ............................ ............................. .............................. ............................. ............................. ..................6600-0469-501 ...6600-0469-501

25. Screw Screw,, 6 - 32 x 5/16, FL, PH ............... .............................. ............................. ............................. .............................. ............................. ....................6600-0403-400 ......6600-0403-400

ˆ The 7 amp circuit breaker breaker can be replaced with this 5 amp circuit breaker. breaker. * Press adhesive side against the fan sensor. sensor.

6-13

† Motor kit contains motor and items 1-4.

6-14

6600-0292-000 102 

 

6/Illustrated Parts 9 10 11 The motor kit (6600-0054-800) is more fully assembled than the motor kit shown here.

 2  8 6

5 4 3 2 1

 7 14 13

12 15

24 22

16 17 18 19

23

   2    2    1  .    2    0  .    I

   C

25

20

Figure 6-11

21 20

Motor,, fan sensor Motor sensor,, circuit breaker and transformer assembly

 

6600-0292-000 102 

 

6/Illustrated Parts Item Stock Number 1. Rear controller controller airseal*............. ........................... ............................. .............................. .............................. ............................. ............................. ................. 6600-0472-500 2. Nut, 10-32 keps keps w/ ext ............. ............................ ............................. ............................. .............................. ............................. ............................. ................. 6600-0066-400 3. Washer at .219 ID .50 OD .............. ............................ ............................. .............................. ............................. ............................. .......................6600-0067-400 ........6600-0067-400 4. Nut, 6-32 keps w/ ext ............. ............................ .............................. ............................. ............................. .............................. ............................. ..................6600-0400-400 ....6600-0400-400 5. Washer Washer,, #6 ............... ............................. ............................. .............................. ............................. ............................. .............................. ............................. ........................6600-0016-400 ..........6600-0016-400 6. Gasket, thermal switch switch............. ............................ ............................. ............................. .............................. ............................. ............................. ................. 6600-0209-500 7. Thermal switch switch .............. ............................ ............................. .............................. ............................. ............................. .............................. ............................. ..................6600-0073-600 6600-0073-600

8. 9. 10.       11. 12.  

Screw, 6-32 x 1/2 RD PH............. Screw, ............................ .............................. ............................. ............................. .............................. ............................0140-6124-108 .............0140-6124-108 Controller rear seal seal (external)* (external)* ............. ............................ .............................. ............................. ............................. ..............................6600-0067-500 ...............6600-0067-500 Heater,, 120V † ............................ Heater .......................................... ............................. .............................. ............................. ............................. .............................. ...................6600-0199-500 ....6600-0199-500 Heater,, 100V † ............. Heater ............................ ............................. ............................. .............................. ............................. ............................. .............................. ...................6600-0231-500 ....6600-0231-500 Heater,, 220/230V † ............. Heater ............................ ............................. ............................. .............................. ............................. ............................. ........................6600-0177-500 .........6600-0177-500 Heater,, 240V † ............. Heater ............................ ............................. ............................. .............................. ............................. ............................. .............................. ...................6600-0198-500 ....6600-0198-500 Gasket, heater .............. ............................ ............................. .............................. ............................. ............................. .............................. ............................. ..................6600-0142-500 6600-0142-500 Rear controlle controllerr (beige) ......................... ....................................... ............................. .............................. ............................. ............................. .....................6600-0470-500 ......6600-0470-500 Rear controlle controllerr (light grey) .............. ............................. .............................. ............................. ............................. .............................. .......................6600-0470-501 ........6600-0470-501

6-15

† Always replace gasket (item 11) when replacing heater * Press adhesive side side against the rear rear of the controller controller..

6-16

6600-0292-000 102 

 

6/Illustrated Parts

6

7

8

10

   3    2    1  .    2    0  .    I

   C

5 4 3 2

1

11

 9

12

Figure 6-12 Back panel

 

6600-0292-000 102 

 

6/Illustrated Parts Item Stock Number 1. Nut, precision, precision, 1/4 -32 NEF (series 2000 only) ............. ............................ ............................. ............................6600-0109-400 ..............6600-0109-400 2. Bezel, patient patient temp probe connector connector (series (series 2000 only)............. ............................ .......................6600-0071-500 ........6600-0071-500 3. Hairpin clip clip (series 2000 only) ............... .............................. ............................. ............................. .............................. ............................. ................ 6600-0104-400 4. Cable tie ............... ............................. ............................. .............................. ............................. ............................. .............................. ............................. .............................6600-0364-400 ...............6600-0364-400 5. ON/OFF switch switch with bezel (DPST)* (DPST)* (includes (includes nut)............. ............................ ............................. .......................6600-0229-600 .........6600-0229-600 6. Switch guard guard kit (includes label & washer) ............... ............................. ............................. .............................. ...................6600-0046-850 ....6600-0046-850 7. Capacitor assy assy kit .............. ............................ ............................. .............................. ............................. ............................. .............................. ..........................6600-0404-800 ...........6600-0404-800

8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20.

Line lter, 6A (AC entrance) ............. ............................ .............................. ............................. ............................. .............................. .......................6600-0094-700 ........6600-0094-700 Screw,, 6-32 x 3/8 ............... Screw ............................. ............................. .............................. ............................. ............................. .............................. ..........................0400-3135-300 ...........0400-3135-300 Keps nut, nut , #6 32 .......................................... ......................................................... ............................. ............................. .............................. ............................. ..................6600-0400-400 6600-0400-400 Connector cover plate plate............... ............................. ............................. .............................. ............................. ............................. .............................. ................. 6600-0473-500 Screw,, 8-32 x 3/8 ........................ Screw ....................................... .............................. ............................. ............................. .............................. ............................. ..................0140-6127-106 0140-6127-106 External tooth lock nut, nut , 8-32 ................................. ................................................ .............................. ............................. ...........................0202-1131-300 .............0202-1131-300 Solid state relay kit (includes item 15) .............. ............................. .............................. ............................. .............................6600-0457-800 ...............6600-0457-800 Metal oxide varistor assy ............................. ........................................... ............................. .............................. ............................. .........................6600-0458-800 ...........6600-0458-800 Washer .............. ............................. .............................. ............................. ............................. .............................. ............................. ............................. .............................. ...................0202-0095-300 0202-0095-300 Washer,, #6................................ Washer ............................................... ............................. ............................. .............................. ............................. ............................. ......................6600-0016-400 .......6600-0016-400 Split lock washer washer,, #6.............. ............................ ............................. .............................. ............................. ............................. .............................. .....................6600-0345-400 ......6600-0345-400 Screw,, 6-32 x 7/8 ........................ Screw ....................................... .............................. ............................. ............................. .............................. ............................. ..................6600-0150-400 6600-0150-400 Fan knob ............................ ........................................... .............................. ............................. ............................. .............................. .............................. .............................6600-0448-400 ..............6600-0448-400

21. 22. 23. 24. 25.     26. 27. 28. 29. 30. 31. 32. 33. 34. 35.

Blower 5 blade (white) ............................ .............. ............................. .............................. ............................. ............................. .......................6600-0008-850 ........6600-0008-850 Hex nutfan, ................. ............................... ............................. .............................. ............................. ............................. .............................. ............................. .............................0144-3127-113 ...............0144-3127-113 Washer,, lock , #10, split ring ............. Washer ............................ .............................. ............................. ............................. .............................. ....................6600-0322-400 .....6600-0322-400 Cooling fan (CCW rotation rotation)) .................. ................................. .............................. ............................. ............................. .............................. ..................6600-0056-400 ...6600-0056-400 Patient temp probe sensor harness kit (includes air probe jack, J4 header, EMI lter board, related wires, and mounting hdwe) ............. ............................ .............................. .............................. ............................. ...................6600-0327-700 .....6600-0327-700 Nut, 6-32 keps w/ ext ............................ ........................................... ............................. ............................. .............................. ............................. ..................6600-0400-400 ....6600-0400-400 Washer,, lock int tooth , 1/4 ......................... Washer ....................................... ............................. .............................. .............................. .........................6600-0396-400 ..........6600-0396-400 Grounding Groundin g post kit (series 2000 only) ............. ............................ ............................. ............................. .............................. .................6600-0260-800 ..6600-0260-800 Washer .............. ............................. .............................. ............................. ............................. .............................. ............................. ............................. .............................. ...................6600-0399-400 6600-0399-400 Patient probe jack .............................. ............................................ ............................. .............................. ............................. ............................. ........................6600-0067-700 .........6600-0067-700 Screw,, 1/2-13 x 1.0 Skt BTN Cap (series 1000 only) ............. Screw ............................ ............................. ..................6600-0769-400 ....6600-0769-400 Washer,, .53 ID x 1.06 OD (series 1000 only) ......................... Washer ........................................ ............................. .....................6600-0770-400 .......6600-0770-400 Washer,, lock ext tooth .5 (series 1000 only) ......................... Washer ........................................ ............................. .....................6600-0776-400 .......6600-0776-400 Washer,, lock split ring 1/2 (series 1000 only) ............. Washer ............................ .............................. ............................. ................6600-0771-400 ..6600-0771-400 Nut, 1/2-13 hex (series 1000 only) .............. ............................. ............................. ............................. .............................. ......................6600-0424-400 .......6600-0424-400

6-17

* This toggle switch does not contain circuit breakers, and should only be used on on controllers that have external circuit breakers.

6-18

6600-0292-000 102 

 

 

6/Illustrated Parts

Open

20

Blue Black Red White

23 22

30

26

29

21

25

27 24

3 2

1

17

18

19

16 8 13 10

28

14 4 32 35 34

32 33 31

5

6

7 9

11

12

15

   8    9    1  .    2    0  .    I

   C

Figure 6-13 Controller chassis and fan assembly

 

6600-0292-000 102 

 

6/Illustrated Parts Item Stock Number 1. Control board board (tested)............. ............................ .............................. ............................. ............................. .............................. ............................. ..................6600-0079-850 ....6600-0079-850 2 Internal tooth lock washer .............. ............................ ............................. .............................. ............................. ............................. .......................6600-0399-400 ........6600-0399-400 3. Screw Screw,, 6-32 .............. ............................. ............................. ............................. .............................. ............................. ............................. .............................. ........................6600-0389-400 .........6600-0389-400 4. Screw Screw,, 6-32 x 3/8 ............... ............................. ............................. .............................. ............................. ............................. .............................. ..........................0140-6624-106 ...........0140-6624-106 5. Internal tooth lock lock washer, washer, #6 .............. ............................. ............................. ............................. .............................. ............................. ................ 6600-0399-400 6. Controller cover cover (beige)............. ........................... ............................. .............................. .............................. ............................. ............................. ................. 6600-0066-500   Controller cover (light grey)............... .............................. ............................. ............................. .............................. ............................. ....................6600-0066-501 ......6600-0066-501

7.  

High voltage harness (terminated AC entrance & solid solid state relay wires, J1 and and J2, battery battery holder)............... ............................. ............................. ................6600-0313-700 .6600-0313-700

6-19

6-20

6600-0292-000 102 

 

6/Illustrated Parts 1

23

4 5

6

7

   5    2    1  .    2    0  .    I

   C

Figure 6-14 Cover assembly

 

6600-0292-000 102 

 

6/Illustrated Parts Item Stock Number 1. Front cover cover,, controller controller (light grey) ............... .............................. ............................. ............................. .............................. ......................6600-0064-501 .......6600-0064-501 2. Washer .............. ............................. .............................. ............................. ............................. .............................. ............................. ............................. .............................. ...................6600-0399-400 6600-0399-400 3. Screw Screw,, 6-32 x 3/8, TRS, PH .............. ............................. .............................. .............................. ............................. ............................. .......................0140-6624-106 ........0140-6624-106 4. Nut ............. ............................ ............................. ............................. .............................. ............................. ............................. .............................. ............................. ...........................6600-0382-400 .............6600-0382-400 5. Display board board ESD shield .............. ............................. ............................. ............................. .............................. ............................. .........................6600-0515-500 ...........6600-0515-500 6. Display board board kit ............. ............................ .............................. ............................. ............................. .............................. ............................. ............................6600-0080-850 ..............6600-0080-850 7. Spacer.............. ............................ ............................. .............................. ............................. ............................. .............................. ............................. ............................. ....................6600-0768-400 .....6600-0768-400 8. Spacer.............. ............................ ............................. .............................. ............................. ............................. .............................. ............................. ............................. ....................6600-0544-400 .....6600-0544-400 9. Washer Washer,, #6, .3750 .............. ............................ ............................. .............................. ............................. ............................. .............................. ..........................6600-0016-400 ...........6600-0016-400 10. Switch panel assembly kit   Care Plus 1000 .............. ............................. .............................. ............................. ............................. .............................. ............................. ............................. ...................6600-0617-801 6600-0617-801   Care Plus 2000 .............. ............................. .............................. ............................. ............................. .............................. ............................. ............................. ...................6600-0617-802 6600-0617-802

6-21

6-22

6600-0292-000 102 

 

6/Illustrated Parts

1

2 3

   7    9    1  .    2    0  .    I

   C

10

7

8

6

9

5

4

Figure 6-15 Control panel assembly

 

6600-0292-000 102 

6-23

 

6/Illustrated Parts 6.6 Board Components Display Board 6600-0512-700

   0    8    0  .    3    2  .    I

   C

6-24

6600-0292-000 102 

 

6/Illustrated Parts

   0    7    0  .    3    2  .    I

   C

Figure 6-16 Display Board

 

6600-0292-000 102 

6-25

 

6/Illustrated Parts Control Board Controllers with software revisions 04.00 and higher 6600-0515-700

   1    1    3  ,    9    0    3  .    2    0  .    I

   C

6-26

6600-0292-000 102 

 

6/Illustrated Parts

   0    1    3  .    2    0  .    I

   C

Figure Control6-17 Board, Surface Mount

 

6600-0292-000 102 

 

6/Illustrated Parts 6.7 Label Sets

English ...................................................................................................................................................................6600-2210-101 French ...................................................................................................................................................................6600-2210-102 Spanish .................................................................................................................................................................6600-2210-103 German.................................................................................................................................................................6600-2210-104 Italian .....................................................................................................................................................................6600-2210-105 Russian .................................................................................................................................................................6600-2210-108 Portuguese .........................................................................................................................................................6600-2210-111 Mandarin .............................................................................................................................................................6600-2210-113

English ...................................................................................................................................................................6600-2214-101 French ...................................................................................................................................................................6600-2214-102 Spanish .................................................................................................................................................................6600-2214-103 German.................................................................................................................................................................6600-2214-104 Italian .....................................................................................................................................................................6600-2214-105 Russian .................................................................................................................................................................6600-2214-108 Portuguese .........................................................................................................................................................6600-2214-111 Mandarin .............................................................................................................................................................6600-2214-113

English ...................................................................................................................................................................6600-2212-101 French ...................................................................................................................................................................6600-2212-102 Spanish .................................................................................................................................................................6600-2212-103 German.................................................................................................................................................................6600-2212-104 Italian .....................................................................................................................................................................6600-2212-105 Russian .................................................................................................................................................................6600-2212-108 Portuguese .........................................................................................................................................................6600-2212-111 Mandarin .............................................................................................................................................................6600-2212-113

English ...................................................................................................................................................................6600-2225-101 French ...................................................................................................................................................................6600-2225-102 Spanish .................................................................................................................................................................6600-2225-103 German.................................................................................................................................................................6600-2225-104 Italian .....................................................................................................................................................................6600-2225-105

6-27

Russian .................................................................................................................................................................6600-2225-108 Portuguese .........................................................................................................................................................6600-2225-111 Mandarin .............................................................................................................................................................6600-2225-113

6-28

6600-0292-000 102 

 

7/Schematics

   3    5    0  .    3    2  .    I    C

Figure 7-1a Control Board Schematic (page 1 of 7)

 

 

7/Schematics

6600-0292-000 6600-0292-00 0 102 

7-1

   4    5    0  .    3    2  .    I    C

Figure 7-1b Control Board Schematic (page 2 of 7)

7-2

6600-0292-000 6600-0292-00 0 102 

 

7/Schematics

   5    5    0  .    3    2  .    I    C

Figure 7-1c Control Board Schematic (page 3 of 7)

 

6600-0292-000 6600-0292-00 0 102 

7-3

 

7/Schematics

   6    5