Roche cobas b 221 system

Roche Diagnostics May 2009
B-62 Service Manual · Version 9.0
4 Components cobas b 221 system
tHb/SO
2
module (cobas b 221<1/3/5> systems only)
8 Remove the plug from the actuator board and unscrew the two mating
component screws (see above, B).
9 Pull the HSIN board out to the back and remove it.
Use the reverse order for assembly.
tHb/SO
2
module (cobas b 221<1/3/5> systems only)
Replacing the tHb/SO
2
module
1 Remove the top cover, T&D cover and printer cover of the cobas b 221 system.
2 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.
3 Carefully pull the sample inlet path out to the right and remove it.
4 Unscrew the three screws holding the central measuring unit.
e For details, see Figure B-2 on page B-20.
5 Raise the central measuring unit forward until it clicks audibly into place.
A HSIN board
B Actuator bus cable plug
C Two mating component screws
Figure B-44 Hemolyzer - HSIN board
B
A
C
Don’t use a tHb/SO
2
module with revision 02 with a software version < 3.00.
For software version < 3.00 use a tHb/SO
2
module with revision 00 or revision 01.
These revisions are also compatible with software versions > 3.00!
Do not remove the fastening screws completely, because they are secured against loss.