BC-2800 Maintenance Manual for Engineers

BC-2800 Maintenance Manual for  Engineers  At least every 3 months, the engineer should visit the end-user end-user to perform t he routine maintenance, to make sure that the analyzer is in normal status, and to guarantee that it gives out reliable test results. Please kindly follow the instructions below step by step. All the process takes about 2-3 hours. Before visiting the end-user, you should prepare tools and spare parts. You should bring with you screw drivers, QC reagent, and calibrator. And also maybe several valves, valves, according to the practice.  Also the localizer of the sample probe and the air filters may be used, but they are contained in the Accessory Kit at t he end-user. end-user. To clean the liquid system, you also need the probe cleanser , but usually the end-users should have this cleanser. So you decide whether to bring it, or use the end-users¶. end-users¶.

1. Perform ³Service´ in the Software. 1) Go to SetupPassword, Password, and input the password of service ³3210´. 2) Go to ServiceError message, message, to review the recent error messages restored in the system. By doing this, you will acknowledge what t rouble the analyzer has encountered recently. You should also communicate with the operator about the trouble history, and if  the trouble still remains, please solve it referring to t he service manual. And contact Mindray service engineers if necessary. 3) Go to the ServiceStatus, Status , to check the Status. For each parameter, there is a reference range, check if each value meet s its range. 4) Go to the ServiceSelf-test, Self-test, there are four groups of items in t he list, ³ Tubing´, ubing´, ³Machine´, Machine´, ³Valve ³Valve´, ´, and ³Circuit ³Circuit´. ´. If any of them comes to an abnormal result, please troubleshoot it.

2. Physical Check, Replacement and Adjustment 1)

Check whether the wipe block is dirty; if dirty, dirty, please please perform perform ³Clean ³ Clean Probe Wipe´ Wipe ´ in Service Maintenance. Maintenance. (Refer to section 10.3.12 in Operation Manual ). And replace the wipe block if it is aged or contaminated seriously, please find a spare one i n the  Accessory Kit and replace it.

2)

Localize the sample probe. Please find the Localizer Localizer in the Accessory Accessory Kit, and localize the relative position of the sample probe and the wipe block. (Refer to section 10.9 in Operation Manual). Manual ).

3)

Open the the shielding shielding covers of the bath. bath. Please Please notice that there are reagents dispensers above the bath; please check whether they are dirty. If dirty, please clean it with a tissue. Be careful not to let the dirt into the bath.  And then check whether the bath is dirty. dirty. If dirty, please perform ³ Clean Bath´ Bath ´ in ServiceMaintenance. Maintenance . If the contamination cannot be removed yet, please please use diluted

probe cleanser (diluted 1:1 by diluent) to soak the bath for 10-15 minutes, then drain the bath. Please also notice that there is a grounding wire for the bath; please check w hether it is fixed well. 4)

Replace the air air filter if necessary. necessary. Please check the air filters of the vacuum chamber and pressure chamber, to find whether they are dirty, and change them if nec essary. There are some spare ones in the Accessory Kit.

3. QC test and calibration. (For the details of how to run QC test and calibration, please refer to the according chapter in Operation Manual) Manual ) 1)

Run QC tests 11 consecutive times (abandon the first time) in whole blood mode, and then complete the following table. Table

QC Test

Pass

(Whole Blood) Item

Mean

1 Quality Control

Fail

Lot No:

N/A

Range

Expiry Date: Result

Out Of Control (Y/N)

WBC RBC HGB MCV PLT 2)

The repeatability repeatability of results is also important to the analyzer. Please select select 5 consecutive results from the QC test to complete the repeatability test table, to see if it meets the repeatability requirement. Table

Repeatability Test (WB): Item WBC RBC

Pass

 Acceptance Criteria Range

CV

7.0 9

2.5

12

2.0

15.0×10 /L 3.5 6.0×10 /L

HGB

110 - 180g/L

1.5

MCV

80 - 110fL

0.5

PLT

150

9

500×10 /L

5.0

2 Repeatability

Fail 1

N/A 2

3

4

5

CV%

3)

If the result is out of of control, please calibrate the analyzer with the calibrator. And complete the table below.

Calibration (WB)

Table

3 Calibration

Pass

Fail

N/A

Lot No.:

Expiry Date: Item WBC RBC HGB MCV PLT

Mean

1

2

3

4

5

CV%

Factor