Roche cobas b 221 system User Manual

Roche Diagnostics May 2009
Service Manual · Version 9.0 B-63
cobas b 221 system 4 Components
tHb/SO
2
module (cobas b 221<1/3/5> systems only)
6 Disconnect the tube connector from the tHb/SO
2
module.
7 Unscrew the two screws of the left tube connecting piece and keep them for later
installation of the new tHb/SO
2
module.
8 Disconnect the connector cable from the the tHb/SO
2
module from mainboard.
9 Unscrew the two screws holding the tHb/SO
2
module.
10 Pull the tHb/SO
2
module forward and remove it.
Use the reverse order for assembly.
Replacing the tubing set tHb/PolyOX
1 Remove the top cover.
2 Disconnect the left tube from the cuvette holder.
e For details, see Figure B-41 on page B-58.
3 Disconnect the connector tube to V4 on the T-piece and remove tubing set tHb/
PolyOX..
e For details, see Figure B-41 on page B-58.
Use the reverse order for assembly.
Replacing the tHb/SO
2
heating unit
1 Disconnect the tHb/SO
2
module.
e For instructions, see Replacing the tHb/SO
2
module on page B-62.
2 Disconnect and remove the heating unit.
Use the reverse order for assembly.
Replacing the Hb cartridge
The sample inlet path must be removed at this time, otherwise it will be destroyed by folding the
central measuring unit out.
Activate the function program h [System] > [Utilities] > [Maintenance] >
[Change Hb cartridge] to position all valve actuators correctly.
When assembling the tHb/SO
2
heating unit, make sure it is placed correctly in order to avoid
possible damage.
Activate the function program h [System] > [Utilities] > [Maintenance] >
[Change Hb cartridge] to position all valve actuators correctly.

Roche cobas b 221 system Specifications

General

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