Roche cobas b 221 system User Manual

Roche Diagnostics May 2009
A-44 Service Manual · Version 9.0
2 Fluid actions cobas b 221 system
Calibration
The calibration does not begin automatically but must be initiated by the user. The fill
port of the T&D module is released for input from an external tHb calibrator.
Once the SS2 sensor has detected the solution and the sample container has been
removed, the positioning begins: a separation at the SS3 sensor is made, then the
excess solution is aspirated out through the sample distributor. The calibration
solution is now aspirated through V2 and the hemolyzer through the cuvette with the
main pump. The optical measurement and storage of the cuvette layer thickness is
made here.
Finally the COOX module is washed and dried.
e For more information, see:
Washing tHb/SO
2
or COOX and preparing Mix1 on page A-28
Recalibrating BG/ISE and drying tHb/SO
2
or COOX on page A-29

Roche cobas b 221 system Specifications

General

Brand	Roche
Model	cobas b 221 system
Category	Medical Equipment
Language	English