BRAIN User Manual EN - 00 - 18 PDF

 

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DIGITAL INCLINOMETER SYSTEM USER MANUAL

INCLINOMETERS & TILT METERS

 

INDEX

INTRODUCTION 

Page 4

DESCRIPTION 

Page 5

B.R.A.IN APP INST INSTALLA ALLATION TION & FIRST TIME USE  US E 

Page 9

B.R.A.IN APP OVERVIEW AND SET SET-UP  -UP 

Page 10

SYSTEM MENU 

Page 17

BACKUP/RESTORE MENU 

Page 18

TAKING MEASUREMENTS 

Page 20

DATA PROCESSING 

Page 32

TROUBLESHOOTING 

Page 35

MAINTENANCE 

Page 37

APPENDIX 1 - PROBE-CABLE CONNECTION SEQUENCE 

Page 38

APPENDIX 2 - CONNECTION TABLES 

Page 39

APPENDIX 3 - REFERENCE MARKS ON CONTROL CABLE 

Page 40

APPENDIX 4 - HOW TO CONNECT PUSHING RODS

Page 41

TO THE HOR HORIZONT IZONTAL AL INCLINOMETER INCLI NOMETER PROBE  APPENDIX 5 - DEFINITION OF “MEASURE LENGTH”

Page 42

IN B.R.A.IN APP 

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APPENDIX 6 - DETAILED DESCRIPTION OF APP READING PAGE 

Page 43

APPENDIX 7 - EXAMPLE OF XML FILE FROM INCLINOMETER SURVEY 

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Note No tes s on th the e us use e of pr produ oduct ct

For saf For safe and and effici efficien entt use use of the the pro produc duct, t, ple pleas ase e rea read d care carefu fully lly th the e foll follow owin ing g instructions before starting any operation. Any use of the product other than the one described in this manual shall be considered the user’s user’ s full responsibility. The same applies for any unauthorized modifications. In addition to the hereby listed standards, the user must comply with the provisions of the current legislation regarding personal safety and health together with all other persons in the workplace. SISGEO is not responsible for any accident, breakdown or other problems due to lack of knowledge and / or non-compliance with the requirements contained in this manual. Check that the product has not been damaged during the transport. Verify that the package includes all items as well as any requested optional accessories; if anything is missing, please promptly contact SISGEO. The user must strictly follow all the operations described in this manual. Maintenance or repair of the device is permitted only by authorized operators. These operators must be physically and intellectually suitable. For information about instrument or to order spare parts, always specify the product information which can be found on the identification label. When replacing parts, always use ORIGINAL SPARE PARTS.

Symbols 

Pay particular attention to the following instruction.

Identification 

Instruments can be clearly identified by • the batch number (written on the Compliance Certifcate) • the serial number (s/n) engraved on the instrument • the label on the instrument • the label on the cable

Note 

The present Manual is issued by SISGEO in English Language and should be available in other different languages. In order to avoid discrepancies and disagreements on the interpretation of the meanings, Sisgeo Srl declares that English Language prevails. All the information in this document is the property of Sisgeo S.r.l. and should not be used or reproduced without permission from Sisgeo S.r S.r.l. .l. We reserve the right to change our product without prior notice. For any other information regarding inclinometers, please refer to the International Standard ISO 1867 186 74-3.

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INTRODUCTION

B.R.A.IN digital inclinometer systems are used to monitor underground displacements in soil or foundations. Typical applications are in landslides, embankments, dams, retaining walls, piles and tunnels. B.R.A.IN inclinometer system is mainly composed by: - vertical or horizontal digital inclinometer probe (A); - B.R.A.IN cable reel with embedded electronics el ectronics (B); - Android or iOS device (NOT supplied by Sisgeo) for system and survey management; - B.R.A.IN APP compatible with Android and iOS devices. Available Av ailable accessories (strongly suggested) are: - dummy probe (C), similar to the inclinometer probe, but without sensor. It allows to check check the accessibility of the inclinometer casing before the survey. Supplied with dummy cable reel (C.1) - spiral meter meter,, to measure the twisting t wisting of inclinometer casing’ casing’s s keyways; - pulley and cable stop (D), used to block the cable and as depth reference. - KLION data analysis software (see relevant datasheet and manual)

C.1

D

B

F

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A 

C

B.R.A.IN. DIGITAL INCLINOMETER SYSTEM EN_00_18

A.1

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DESCRIPTION

VERTICAL INCLINOMETER PROBE Vertical inclinometer probe consists of: • an electrical waterproof male connector with O-Ring for connection to B.R.A.IN cable reel; • a stainless steel body with biaxial MEMS digital inclinometer sensor; • 2 two-wheels assemblies, at a distance (gauge length) of 500 mm or 1000 mm, to slide the probe along the keyways of the inclinometer casing; • a rubber tip at the bottom to limit any damage due to accidental impacts.

inclinometer control cable cable connector electrical connector B

 A 

gauge length

rubber tip

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HORIZONTAL INCLINOMETER PROBE Horizontal inclinometer probe consists of: • two electrical waterproof male connectors with O-Ring (marked as connector “1” and “2”) for connection to B.R.A.IN cable reel; • a stainless steel body with an uniaxial MEMS digital inclinometer sensor; • two fixed wheels at a distance (gauge length) of 500 mm or 1000 mm and two spring-loaded wheels to slide the probe along the keyways of the inclinometer casing.

electrical connector “2”

electrical connector “1” spring-loaded wheels

cable connector

 fixed wheels (gauge length)         2

1   

inclinometer control cable

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B.R.A.IN Bluetooth CABLE REEL B.R.A.IN cable reel consists of: • a support reel with integrated electronics and Bluetooth Low Energy (BLE) communication module; • control cable with female waterproof connector for linking to the digital inclinometer probe. The cable is available in “heavy duty” dut y” (HD) model or “light” model, both graduated with metal marks every 500mm. The first cable mark is placed at: - 1000mm from the center line between wheels assembly for 500 mm probe gauge length; - 1250mm from the center line between bet ween wheels assembly for 1000 mm probe gauge length. Every 5 meters a colored reference helps to identify the actual depth (see Appendix 3 for more details).

B.R.A.IN PANEL OVERVIEW

On the support reel is placed B.R.A.IN panel. It includes the electronic that allows probe’s measurements and the connection through Bluetooth (BLE) to the Android or iOS device that will handle the inclinometer measurements. B.R.A.IN panel consists in: • • •

ON/OFF button Notification LED Charger connector

ON/OFF button

Notification LED

Charger connector

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ON/OFF button

ON/OFF button is used mainly to switch on/off B.R.A.IN. B.R.A.IN. Pushing once with B.R.A.IN switched off, off, this will be switched on. The green LED will turn on for confirmation. • In case at the end of a survey survey,, the LED remains blue, it means that B.R.A.IN didn’t didn’t disconnect the Bluetooth. Push and keep presses the button for 3 seconds until it turns green. • With B.R.A.IN switched on, pushing the button once, it will be switched off. off. The The led will be switched off too for confirmation. STATUS LED

The LED, through a colour code, shows B.R.A.IN status. Following is the colours code: • POWER ON: the green flashing LED means that B.R.A.IN is switched on but hasn’t established a Bluetooth connection with a device yet; • BT CONNECTION: the blue flashing LED means that B.R.A.IN successfully connected with a device; red  flashing LED means that there is a system’s anomaly. • ANOMALY: the red anomaly. On the APP will be displayed the anomaly’s details; • LOW BAT: the yellow flashing LED means that B.R.A.IN’s rechargeable rechargeable battery is empty and needs to be recharged. CHARGER connector

The connector on the lower part of the panel allows the recharge of the batteries inside B.R.A.IN. Connecting the supplied battery charger, the batteries batteries will be recharged. It is possible to use B.R.A.IN during the recharge. ATTENTION: we recommend to use only the original battery charger supplied by SISGEO to avoid damaging the batteries and B.R.A.IN itself. itself. NOTE: during the re-charge, ONLY ONLY the led on the battery charger will switch on; instead there will be no led flashing on B.R.A.IN panel. RESET

It is possible to force B.R.A.IN reset keeping the button on the panel pushed for 10 seconds. As soon as B.R.A.IN will receive the reset command, the LED will flash repeatedly with the sequence of two short and one long flash. When this sequence is shown, release the button: the LED will start s tart to flash green. After this operation, in some cases will be necessary to pair again the reel with the APP.

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B.R.A.IN APP INSTALLATION & FIRST TIME USE

B.R.A.IN APP is compatible with the following Operative Systems:  •  •

Android OS from version 7 onward iOS from version 11 onward

The smartphone/tablet smartphone/tablet where the APP is installed must be compatible with BLE (Bluetooth Low Low Energy) from version 4.1 onward. The APP can be downloaded from the app stores of both O.S. (Google Play Store for Android and App Store for Apple). Search for the APP and then click on Install key, the APP will be dowloaded and then installed on the device. With the Android O.S. it is possible to install the APP also using directly the APK (Android Application Package) of the app. The APK file can be supplied by SISGEO in case of connection problems to Google Play Store. In this situation, it’s it’s necessary to enable the installation of apps of unknown source. This option is usually usua lly in the menu “Advanced “Advanced Settings - Safety - Unknown source” s ource”. Please refer to your device manual for more information. FIRST TIME USE

Once installed the APP B.R.A.IN, it’s necessary to carry out the BT connection with a B.R.A.IN inclinometer system. Every inclinometer system has a diff different erent name. The BT name of the inclino i nclinometer meter system syst em is like: “B.R.A.IN-aaaan “B.R.A.IN- aaaannnn” nnn”, where “aaaa” is is the registration year and “nnnn” is an unique numer. In this way, also among diff different erent inclinometer system, the user will be always able to understand which B.R.A.IN to connect to. If it’s the first time you connect to an inclinometer system, will be requested the BT association through the insertion of a PIN. PIN code is the same for all the B.R.A.IN and is 123456. NOTE: the PIN is common among all B.R.A.INs since B.R.A.IN doesn’t doesn’t record data, so there is no safety risk for the acquired data. Data are stored exclusively on the device used for the inclinometer test. In order to perform the first connection proceed as follows: • switch on B.R.A.IN pressing POWER ON key • on the device (smartphone/tablet) enter in the BT menu and search for the name of the B.R.A.IN just switched on. • Selecting B.R.A.IN, a menu will be opened where you can insert the PIN in order to perform the pairing:

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Once carried out the pairing, it will be possible to use the B.R.A.IN APP. NOTE: the association through pairing must be carried out only the first time you connect B.R.A.IN to a device. NOTE: the Bluetooth connection between device and B.R.A.IN happens only after the selection of its B.R.A.IN in the APP; at the end of the test the device wil be automatically disconnected from B.R.A.IN.

B.R.A.IN APP OVERVIEW AND SET-UP

APPLICATION START In order to start st art the APP, press on its i ts icon on the th e device. Once the app starts, it will be displayed a “load” page. After a few few seconds will be displayed the welcome page with the main menu (also called home page)

 

The Home Page consists in 4 main menu: START ST ART: it allows the configuration of sites and inclinometer casings, as well as inclinometer readings execution and the export of the measures taken. BACKUP/RESTORE: BACKUP/REST ORE: it allows to execute the configuration and measures backup. It’s It’s moreover possible to save the backup directly on a cloud service ( i.e. DropBox, GDrive and iCloud). From the same menu it will be possible to execute the restore from a previous backup. NOTE: the cloud apps and the cloud accounts must be on the same device and already configured. SYSTEM: it allows to obtain information about the probe connected, about integrated reel SYSTEM: electronics, about the APP version and the device. This page summarize all the information necessary in case of assistance with Sisgeo’s Customer Care. NOTE: in order to show B.R.A.IN and the probe’s information, B.R.A.IN must be connected to the device and the probe to B.R.A.IN. If they are not connected, both fields will result empty. MANUALS: it create a connection with SISGEO WEBSITE, MANUALS: WEBSITE, on the products page, with its manuals and the video tutorial.

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SITE CREATION In order to create a new site, proceed as follows: • select START menu • select SITE/CASING CONFIGURATION, CONFIGURATION, then SITES and then NEW SITE:

  •

It will be opened a new page where you can insert the data of the SITE you are about to create. You can insert a SITE NAME and a SITE DESCRIPTION. Selecting the icon “POSITION” the device will record automatically the GPS coordinates of the survey site in SITE characteristics. A check mark will be shown next to POSITION icon. Selecting INSERT A PHOTO PHOTO it will be possible to upload and link a photo from the device’s device’ s gallery galler y with the SITE. Selecting ACCEPT you will return to the SITE CONFIGURATION CONFIGURATION submenu and will be shown the SITE just created.

 

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MODIFY/DELETE SITE MODIFY/DELETE In order to modify a SITE previously created, proceed as follows: • select STAR START T menu • select SITE/CAS SITE/CASING ING CONFIGURATION, CONFIGURATION, then SITES and then EDIT next to the SITE you want to modify:

 

It will be possible to modify the data inserted during SITE configuration (except SITE NAME), save the changes pressing ACCEPT, undo the changes pressing CANCEL or press on the DELETE key in order to delete the whole SITE.

CASING CREATION In order to create a new CASING proceed as follows: • select START menù • select SITE/CASING CONFIGURATION, CONFIGURATION, select then CASINGS • Select the SITE where the casing will be created, select CASINGS and then NEW CASING:

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  •

It will open CASING configuration page. Once O nce you have configured CASING’ CASING’s s parameters, press ACCEPT to save configuration.

CASING CONFIGURATION PARAMETERS the following are all the configurable CASING parameters: CASING NAME: name to be associated to the CASING. This field will be used for the identification identifi cation of o f the casing casi ng in the APP. CASING DESCRIPTION: DESCRIPTION: descriptive field to be used in order to better identify the CASING in the app (optional) MEASURE TYPE: selection field where can be choosen the kind of measure to be executed among INCLINOMETER SURVEY, SPIRAL METER SURVEY or T-REX SURVEY RUN TYPE: it allows to select between VERTICAL or HORIZONTAL READING SEQUENCE: SEQUENCE: it allows to select how many keyways to read (2 keyways or 4 keyways). UNIT: it allows to select the unit of measurements used to manage the inclinometer survey between METERS and FEET. FEET. Automatically it will change the unit of measure displayed for the MEASURING LENGTH and for the STEP LENGTH. NOTE: this unit of measurement must be selected in agreement with probe’s gauge length. Infact it’s it’s not correct to have a metric probe with imperial units and set “feet” as unit of measurements and viceversa MEASURE LENGTH: LENGTH: it allows to insert the length of the casing’s section to be measured (for details see APPENDIX 5) STEP LENGTH: it allows to insert the step of the measures

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AZIMUTH: AZIMU TH: it allows to insert the Azimuth value

•

Selecting the icon POSITION the device will record automatically the GPS coordinates of the survey site in SITE characteristics. A check check mark will be shown next to POSITION icon. Selecting INSERT A PHOTO PHOTO it will be possible to upload and link a photo from the device’s device’ s gallery galler y with the SITE. Selecting ACCEPT you will return to the SITE CONFIGURATION CONFIGURATION submenu and will be shown the SITE just created.

MODIFY / DELETE CASING In order to modify a CASING previously created, proceed as follows: • select STAR START T menu • select SITE/CAS SITE/CASING ING CONFIGURATION, CONFIGURATION, then CASINGS and then EDIT next to the SITE you want to modify:

 

It will be possible to modify the data dat a inserted during CASING configuration (except CASING NAME), save the changes pressing ACCEPT, undo the changes pressing CANCEL or press on the DELETE key in order to delete the whole CASING

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APP SETTINGS APP SETTINGS menu allows to modfy and set some parameters of the app: a pp: • Select START menu • Select APP SETTINGS

The following is a list of functions settings:

VALUE

DEFAULT VALUE

DESCRIPTION

LANGUAGE

Italian English

Engl En glis ish h

Langua Lang uage ge use sed d fro from m the the ap app. p. If you change the language, close and restart resta rt the t he APP. APP.

TEMPERATURE UNIT

Celsius Cels Ce lsiu ius s Fahrenheit

Unit of me Unit meas asur ure e use used d to to dis displ play ay th the e temperatures.

EXPORT FORMAT

XML

It allows to select the format of the

XML

Archimede

measures executed (for details see APPENDIX 7).

B.R.A.IN TIMEOUT

minutes

10 minutes

It allows to define after a fter how many minutes B.R.A.IN shuts down in case of user’ user ’s inactivity. i nactivity.

ALARM B.R.A.IN TEMPERATURE

On/Off

Off

Activate/Deactivate the app notification of the high or low temperature detected on B.R.A.IN electronics. High threshold: 65°C Low threshold: -15°C

ALARM B.R.A.IN HUMIDITY

On/Off

Off

Activate/Deactivate the app notification of the high or low humidity detected on B.R.A.IN electronics. High threshold: 85%

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ALARM PROBE TEMPERATURE

On/Off

Off

Activate/Deactivate the app notification of the high or low temperature detected on the probe High threshold: 65°C Low threshold: -25°C

ALARM PROBE HUMIDITY

On/Off

Off

Activate/Deactivate the app notification of the high or low humidity detected on the probe High threshold: 85%

ALARM PROBE CALIBRATION EXPIRY

On/Off

Off

Activate/Deactivate the app notification of expired calibration date

ALARM MEASURE STABILITY

On/Off

Off

Activate/Deactivate the app notification of the measurement execution stability

INCLINOMETER MEASURE STABILITY TOLLERANCE

%

0.005%

Percentage value of inclinometer measure stability acceptability

INCLINOMETRIC NUMBER OF STABILITY READINGS

number

5

Number of readings that are compared in order to verify the stability

SPIRAL METER MEASURE STABILITY TOLLERANCE

%

0.005%

Percentage value of spiral meter measure stability acceptability

SPIRAL METRER NUMBER OF STABILITY READINGS

number

5

Number of readings that are compared in order to verify the stability

T-REX MEASURE STABILITY TOLLERANCE

%

0.005%

Percentage value of T-REX measure stability acceptability

T-REX NUMBER OF STABILITY READINGS

number

5

Number of readings that are compared in order to verify the stability

 

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SYSTEM MENU

Selecting this menu it’s possible to display complete information on the system. It will be shown a page with all the information on the probe, of the reel electronics, of the APP and of the used device. This page is really useful in case of the intervention of our Customer Care Department is needed. It can be shared with SISGEO in order to supply the necessary information on the inclinometer system and receive a proper assistance. NOTE: in order to obtain all the information it’s necessary that the probe would be connected to the B.R.A.IN panel. Otherwise no information about the probe will be available. • Selecting SY SYSTEM STEM it will be displayed the list of B.R.A.IN system available • Select the B.R.A.IN you want to connect to, after a few seconds it will be displayed the page with the information summary

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BACKUP/RESTORE MENU

This menu allows to execute the backup of all data included in the APP directly on a cloud service or locally on the device internal memory. The backup must be executed manually from the operator operator.. The user, in order to execute the backup, must be already registered to a cloud service and have the APP of the cloud service installed and working on the device. To execute a BACKUP: • Select BACKUP/RESTORE • Select BA BACKUP CKUP. It will display a window where the system will suggest some APP that can ca n be used to execute exec ute the BACKUP. After the choice of the APP (in (i n the example, exampl e, G-drive), select the name of the backup file and the position where to save it. Then press SAVE. The BACKUP will be saved.

To execute a RESTORE. • Select BACKUP/RESTORE • Select REST RESTORE. ORE. A warning popup will appear informing the user that all app’ app’s s data will be replaced from the ones of the BACKUP: BACKUP: select YES if you wish to proceed. Now you shall look for the proper BACKUP file in the position where it has been saved. After the selection, a popup will appear informing that the RESTORE was successful. NOTE: In order to retrieve a backup saved on a cloud, it’s necessary to download it in advance on the device memory. Otherwise the RESTORE RESTORE procedure will show an a n error message. NOTE: the the app and his content automatic backup can be executed automatically through the operating system base functions. In this case it will be necessar y to tell the O.S. to execute the backup of B.R.A.IN app and its content. For further information please refer to the O.S. manufacturer user manual.

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TAKING MEASUREMENTS

reference keyway

SURVEY WITH VERTICAL PROBE Inclinometer casing survey consists in a number of readings at regular steps of the tilt of the inclinometer probe. Probe shall be moved incrementally along the casing, whereby for ISO 18674-3 18674-3 each increment shall not exceed the gauge length of the probe (500 or 1000 mm). The inclinometer casing should be installed with one keyway in the reference direction. In vertical boreholes, the reference direction should be the direction of the anticipated principal movement OR the keyway closer to geographic north. The keyway keyway in the reference direction shall be the reference keyway and shall be durably marked, for example, by cutting a notch at the top of the guide tube into that keyway or by identifying it by a water-resistant water-resistant and wear wear-resistant -resistant mark. Inclinometer’s Inclinometer’ s casing keywa keyways, ys, once installed, inst alled, are identified with numbers 1-2-3-4, clockwise; the keyway in the t he reference referenc e direction direc tion is the key way “1”.

1

4

2

3

The below scheme shows SISGEO probe sign convention: the lower wheel and letter A are the probe’s probe’s reference side. If you place the probe vertically on an horizontal flat surface and tilt it in the arrows direction, channel A and B readings (the 2 orthogonal axis) take different signs.

A0

B0

 B

A-

B+ B-

A+

reference wheel

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Inclinometer surveys can be taken t aken in two or four keyways, so with two or four runs. 4-keywas survey is usually identified with the following string: A1B1 - A3B3 - A2B2 - A4B4 2-keywas surveys are usually identified with the following strings: A1B1 - A3B3 A2B2 - A4B4 where: A1B1 is the A3B3 is the A2B2 is the A4B4 is the

run with probe’s probe’s reference wheel in run with probe’s probe’s reference wheel in run with probe’s probe’s reference wheel in run with probe’s probe’s reference wheel in

keyway 1 keyway 3 (reverse or conjugated run) keyway 2 keyway 4 (reverse or conjugated run)

The first complete survey is called “reference reading” and is the survey compared to which will be calculated all the future displacements of the inclinometer’ i nclinometer’s s casing. For establishing a reliable reference set, there should be, in the reference reading, at least two repetitions of the initial measuring survey whereby each survey consists of a normal (0°) and a reverse (180°) run along the guide tube (usually A1B1 - A3B3), under repeatable conditions. We suggest to take reference readings on four keyways (A1B1 - A3B3 - A2B2 - A4B4), because sometimes casing could deform, preventing probe’s probe’s readings, while the perpendicular keyways keyways can still be used. Before inserting the inclinometer probe in the casing, we advice advic e to check casing’s casing’s accessibility using the dummy probe, which has to slide along the casing with the reference wheels put in all the 4 keyway keyways. s. The stability of the readings is critical c ritical for a correct measurement. Therefore, Therefore, at the beginning of a survey, the measuring probe shall be brought to the point furthest from the collar of the guide tube (lower part of the casing) and left there to adjust to the ambient temperature until the readings are considered to be sufficiently stable. We suggest a minimum stabilization time of 10 minutes. To carry out an inclinometer survey, proceed as follows. The detailed operations to be performed with B.R.A.IN APP will be described in next paragraph “HOW TO USE B.R.A.IN APP FOR TAKING READINGS” • • • •

• •

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Remove the probe from shoulder carrying bag; Check wheels assembly and wheels functionality; Check if the O-ring on the connector is present; Keep the probe vertical on the ground and connect it to the inclinometer control cable paying attention to fit connector’s connector’s references. DON’T TURN and DON’T STRAIN the connectors to avoid any irreparable damage (for this operation, see APPENDIX 1); Once the connectors are matched, screw manually the nut until is fully locked in order to grant the water thightness; Switch-on Switch-on the B.R.A.IN reel, open the B.R.A.IN APP on your device and select SYSTEM SYSTEM in order to verify if the device is correctly paired with the reel, if the reel electronic works properly and if the probe is correcly connected;

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•

• • •

• • • • • • • • • • • • • •

Insert the probe in the inclinometer casing with the reference wheels in keyway 1 (RUN A1B1); if available, install the pulley and cable stop or the cable gate on the inclinometer casing. Drop slowly the probe until it reaches reaches the lower part of the the casing; On the B.R.A.IN APP select the SITE and the CASING of the actual survey, connect the APP to the B.R.A.IN cable reel and select the RUN type (A1B1); Wait at least 10 minutes to stabilize the probe temperature; Pull-up the probe until the first available mark on the cable is on the expected reference point. Place very carefully the marks on the pulley or cable gate because, to have good results, their position must never change. Before registering the data at each step (depth), wait for te stabilization of the values (green characters on the device display) push “READ” button on B.R.A.IN APP to register the data; Pull-up the probe using the control cable, placing the next mark of the cable according to the step set (usually the probe gauge length); Proceed in this way for the whole length of the casing. Once ended with keyway 1, pull out the probe from the casing; Turn the probe of 180°, put it back in the casing with the reference wheels in keyway 3 and lower the probe until it reaches the bottom; Proceed as already explained for keyway 1. 1. In this case the values will be identified as A3B3. In case of 4-keyway reading, the described steps must be performed also with the probe reference wheel in keyway 2 (A2B2) and then in keyway 4 (A4B4). Once ended the reading, unscrew the nut and disconnect carefully the probe from the cable connector; Check the connectors (probe and cable) to ensure that there is no humidity inside; Screw the protection caps; Clean carefully and dry the probe in its mechanical parts; Rewind carefully the inclinometer cable on the B.R.A.IN reel in order to avoid any torsion; Put back the probe in its carrying casing;

Advices: • • • •

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Use always always the same inclinometer inclinometer system system (probe-B.R.A.IN reel) to to survey the casing. Use the pulley and cable stop or the cable stop. When you you move move from a level level to the next next one, record the data only when when the values are stable. Avoid Av oid pulls and excessive speed in the probes’ recovery recovery..

B.R.A.IN. DIGITAL INCLINOMETER SYSTEM EN_00_18

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SURVEY WITH HORIZONTAL PROBE The inclinometer reading consists in a survey, at regular steps, of the inclinometer casing tilt compared to the horizontal. The step is usually the same of the wheels assembly distance (gauge length). For establishing a reliable reference set, there should be, in the reference measurement, at least two repetitions of the initial measuring survey whereby each survey consists of a normal and a reverse run along the inclinometer tube under repeatable conditions. The inclinometer casing should be installed with one keyway in the reference direction. In horizontal and inclined boreholes, the reference direction should be the “top” of the borehole. The keyway which is in the reference direction shall be the reference keyway and shall be durably marked, for example, by cutting a notch at the top of the guide tube into that keyway or by identifying it by a water water-resistant -resistant and wear wear-resistant -resistant mark. Inclinometer’ Inclinometer’s s casing keyways, once installed, are identified with numbers 1-2-3-4 1-2-3-4,, clockwise; the keywa keyway y in the reference direct direction ion is the keyway “1”. The following drawing shows the reading sign convention:

connector 1  t  le n g h   e  l  e  g  g a u

connector 2

A