Roche cobas b 221 system

Roche Diagnostics May 2009
Service Manual · Version 9.0 D-85
cobas b 221 system 7 Troubleshooting
Value flag s
o Call up hemolyzer test and depending on the result replace hemolyzer unit or
HSIN board.
e For instructions, see Hemolyzer (cobas b 221<2/4/6> systems only) on page D-100.
Flag no. 8062 "Interferences (2)"
The calculated Hb derivatives are invalid.
Possible causes: o Interferences
o Unsuitable sample type used
Remedy: o Check the sample material and, if necessary, reenter the sample.
o Perform "Polychromator calibration".
o Replace cuvette.
e For instructions, see Replacing the cuvette on page B-59.
o Call up hemolyzer test and depending on the result replace hemolyzer unit or
HSIN board.
e For instructions, see Hemolyzer (cobas b 221<2/4/6> systems only) on page D-100.
Flag no. 8063 "Interferences (3)"
The calculated value of Bilirubin is invalid.
Possible causes: o Interferences
o Unsuitable sample type used
Remedy: o Check the sample material and, if necessary, reenter the sample.
o Perform "Polychromator calibration".
o Replace cuvette.
e For instructions, see Replacing the cuvette on page B-59.
o Call up hemolyzer test and depending on the result replace hemolyzer unit or
HSIN board.
e For instructions, see Hemolyzer (cobas b 221<2/4/6> systems only) on page D-100.
Flag no. 8070 "IfS repro. not OK"
Non-reproducible sensor signal at interference sensor.
Possible causes: o Unsuitable sample type used
Remedy: o Call up "Wetting routine" for MSS.
h [System] > [Utilities] > [Fluid actions] > [Wetting routines].
o Perform "MSS polarization".