Roche cobas b 221 system

Roche Diagnostics May 2009
Service Manual · Version 9.0 B-83
cobas b 221 system 4 Components
Valve s
Replacing the valves from sample distributor cartridge and Hb cartridge
These instructions apply to the following valves:
V10, V15, V20, V21, V22, VBI, VII, VSI, V2, V23, V24
1 Switch off the cobas b 221 system.
e Please pay attention to Shutdown on page B-19.
2 Remove the cobas b 221 system top cover.
3 Rotate the T&D lock on the T&D module 90 degrees to the right.
e For details, see Figure B-4 on page B-22.
4 Carefully pull the sample inlet path out to the right and remove it.
A V10
B V15
C V20
D VSI
E VII
F V21
G VBI
H V22
I V24
J V23
K V2
Figure B-62 Sample distributor valves and Hb cartridge valves
B
A
C
D
E
F
G
H
I
J
K