Roche Diagnostics May 2009
Service Manual · Version 9.0 A-31
cobas b 221 system 2 Fluid actions
Calibration
Calibration
BG/ISE cleaning
This procedure removes deposits in the BG or ISE measuring chamber. The required
cleaning solution is in the S2 Fluid Pack and is aspirated into the measuring chambers
through the T&D disk (position 9), the aspiration channel and the sample distributor.
The calibration of the conductivity is performed next.
A Main pump
B T&D module (position 9)
C Waste separator
D Cleaning solution
Figure A-17 BG/ISE cleaning