Roche cobas b 221 system User Manual

Roche Diagnostics May 2009
A-28 Service Manual · Version 9.0
2 Fluid actions cobas b 221 system
Measurement
Washing tHb/SO
2
or COOX and preparing Mix1
When the measuring chamber area is clean, the tHb/SO
2
or COOX module is washed.
The vacuum pump runs rinse solution "in the reverse direction" from V3 through the
measuring module to the Hb cartridge; air packets are mixed in through V4 to
increase the cleaning effect.
Mix1 is aspirated from the FMS to the FMS tube simultaneously.
Then the measuring chamber area is dried. During this procedure the T&D disk is
undocked with the vacuum pump running until the measuring chamber area is dry.
The valve positions are the same as when washing the measuring chamber area.
e For more information, see Washing the measuring chamber vicinity on page A-27.
A Vacuum pump
B Main pump
C Preparing Mix1
D Waste separator
E S1 Rinse solution
F Washing tHb/SO
2
or COOX
G FMS
Figure A-15 Washing tHb/SO
2
or COOX and preparing Mix1
AB
G
D
C
F
E

Roche cobas b 221 system Specifications

General

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