Roche cobas b 221 system

Roche Diagnostics May 2009
D-100 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
Important test routines
Hemolyzer (cobas b 221<2/4/6> systems only)
h At the ready screen, press
[System] > [Component test] > [Aggregates] > [Hemolyzer].
U
PC
: Phase-angle adjustment voltage
Status not ok – :
o The hemolyzer is not empty: call up "Wash".
o The hemolyzer is damaged: replace unit.
I
N1
: Current setting
Status not ok – :
o The hemolyzer is damaged: replace unit.
I
N2
: Measure setting
Status not ok – :
o The HSIN board is defective: replace board.
I
H
: Hemolyzer current
Status not ok – :
o The hemolyzer is damaged: replace unit.
o The HSIN board is defective: replace board.
U
AI
: Voltage at air and idle
Status not ok – :
o The hemolyzer is not empty: call up "Wash".
o The hemolyzer is damaged: replace unit.
R
AP
: Resistance with air and power
Status not ok – :
o The hemolyzer is not empty: call up "Wash".
Figure D-6 Hemolyzer (cobas b 221<2/4/6> systems only)