Roche cobas b 221 system

Roche Diagnostics May 2009
D-80 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
Value flag s
o Call up "Wetting routine" for MSS.
h [System] > [Utilities] > [Fluid actions] > [Wetting routines].
o Call up "Contact path test" for MSS and aspirate standby solution.
e For the details, see Contact path test on page D-95.
o Replace MSS cassette.
Flag no. 3014 "Ref. point not ok"
Problem with calibration with MSS standby solution.
Possible causes: o Aspiration of MSS standby solution not ok
Remedy:
e For details, see Aspirating MSS reference solution, calibration with standby solution on
page A-39.
o Call up "Aspirate standby solution".
h [System] > [Utilities] > [Fluid actions] > [Fill routines].
o Call up "Fill ref. electrode MSS"
(reference electrode only for instruments with urea installed).
o Perform "Calibration for ready".
o Call up "Wetting routine" for MSS.
h [System] > [Utilities] > [Fluid actions] > [Wetting routines].
o Call up "Contact path test" for MSS and aspirate standby solution.
e For the details, see Contact path test on page D-95.
o Replace MSS cassette.
Flag no. 3015 "1P not OK"
Problem at 1P calibration point.
Possible causes: o Second calibration point is not calibrated since an error occurred at the first
calibration point.
Remedy: o Perform "Calibration for Ready".
Flag no. 3022 "Conductivity not OK"
The conductivity is not ok.
Possible causes: Conductivity calibration was not ended properly
Remedy: o Print the sensor report and check the status for conductivity BG for CAL B (B Pot)
and CAL A (A Pot).
h > [Miscellaneous reports] > [Sensor report].
e For the details, see Sensor limits (Sensor report) on page D-135.
o Call up "General fluidics test" and check that tubing paths are open and without
leaks. h [System] > [Diagnostics] > [General fluidics test].
o Replace S2 Fluid Pack.