Roche cobas b 221 system User Manual

Roche Diagnostics May 2009
Service Manual · Version 9.0 A-23
cobas b 221 system 2 Fluid actions
Measurement
Sample distribution
When the sample is detected by SS2 the sample distribution is started. The sequence
of the individual aspiration phases depends on the existing or requested modules.
Separating BG: The start of the sample is aspirated from SS2 to SS1. The volume SS2-SS1 is specified
for filling the BG measuring chamber.
Separating tHb/SO
2
or COOX: One sample segment is aspirated from SS2 to SS3. The volume SS2-SS3 is specified for
filling the tHb/SO
2
or COOX module.The user can specify in the setup whether
tHb/SO
2
/ COOX or ISE is separated first.
A Waste separator
B Wash rail
C Main pump
D MSS output pump
E Position MSS
F Position ISE
G Separate MSS
H Separate BG
I Position BG, separate ISE
J Separate tHb/SO
2
or COOX
K Position tHb/SO
2
or COOX
L S1 Rinse solution
Figure A-12 Sample distribution
C
A
B
DEF
G
F
LKJ
H/I
I

Roche cobas b 221 system Specifications

General

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