Roche cobas b 221 system

Roche Diagnostics May 2009
Service Manual · Version 9.0 D-97
cobas b 221 system 7 Troubleshooting
Important test routines
o Measurement value slightly lower: replace MSS cassette.
o Insert electrode simulator and act accordingly.
Ref. aspiration: MCO measurement value
Status not ok – :
o Call up "Aspirate MSS reference solution" in the fill routines.
o Replace S3 fluid pack.
o Call up "General fluidics test" and check tubing paths.
Amp. Lac/Glu: Amp. Lac/Glu are measurement values that have no meaning yet.
Check MCI: MCI measurement value
Status not ok – :
o Call up this test several times. This value can improve greatly as a result.
o Call up MSS wetting routine.
o Call up MSS internal cleaning and then insert new MSS cassette.
Positioned sample: h Press [MSS pos. sample].
This test function is only significant when using the electrode simulator.
External sample: h Press [MSS external sample].
Separation MCI: MCI measurement value
Status not ok – :
e This error pattern corresponds to Flag no. 1002 "Sample sep. error (1)" on page D-59.
Positioning MCI: MCI measurement value
Status not ok – :
e This error pattern corresponds to Flag no. 1000 "Sample pos. error (1)" on page D-58.
Separation MCO: MCI measurement value
Status not ok – :
e This error pattern corresponds to Flag no. 1002 "Sample sep. error (1)" on page D-59.
Positioning MCO: MCI measurement value
Status not ok – :
e This error pattern corresponds to Flag no. 1000 "Sample pos. error (1)" on page D-58.
Amp. Lac/Glu: Amp. Lac/Glu are measurement values that have no meaning yet.
Check MCI: MCI measurement value
Status not ok – :
o Sample is unhomogenous.