Roche Diagnostics May 2009
D-120 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
Important test routines
Stability monitor
h At the ready screen, press [System] > [Diagnostics] > [Stability monitor].
Overview The stability monitor provides information about the instrument stability of the
cobas b 221 system over a defined period based on the content of the log file. The
default period for the stability monitor is two days.
Figure D-26 Stability monitor printout (example)
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