Roche cobas b 221 system User Manual

Roche Diagnostics May 2009
B-44 Service Manual · Version 9.0
4 Components cobas b 221 system
MSS measuring chamber (cobas b 221<5/6> systems only)
MSS measuring chamber (cobas b 221<5/6> systems only)
Replacing the MSS measuring chamber
1 Disassemble the sample distributor cartridge.
e For instructions, see Replacing the sample distributor cartridge on page B-35.
2 Open the locking lever (Plexiglas cover) of the MSS output pump and slide the
linear clamp (white plastic part) up.
e For details, see Figure B-46 on page B-65.
3 Pull the tubes out of the tube guide and remove the tube adapter from the MSS
module.
4 Open the MSS measuring chamber, remove the electrodes and the MSS cassette
and pull out the tube on the left side.
5 Unscrew the three screws holding the central measuring unit.
e For details, see Figure B-2 on page B-20.
6 Raise the central measuring unit forward until it clicks audibly into place.
Electrostatically sensitive components!
A MSS output pump
B Linear clamp
C Tube adapter
D Tube guide
Figure B-27 Tube adapter
A
B
C
D
Do not remove the fastening screws completely, because they are secured against loss.
The sample inlet path must be removed at this time, otherwise it will be destroyed by folding the
central measuring unit out.

Roche cobas b 221 system Specifications

General

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