Roche cobas b 221 system

Roche Diagnostics May 2009
B-16 Service Manual · Version 9.0
4 Components cobas b 221 system
Table of c o n t e nts
Replacing the sample distributor ............................................................................ 37
Replacing the SS1, SS2, SS3 and SS4 optical sensors ............................................. 39
BG measuring chamber ................................................................................................40
Replacing the BG measuring chamber ................................................................... 40
Replacing the fan protector (BG module) ............................................................. 41
Replacing the electrode locking lever (BG module) ..............................................42
Replacing the center seal (BG module) ..................................................................42
ISE measuring chamber (cobas b 221<3>–<6> systems only) .................................. 42
Replacing the ISE measuring chamber ................................................................... 42
Replacing the fan protector (ISE module) .............................................................43
Replacing the electrode locking lever (ISE module) ..............................................43
Replacing the center seal (ISE module) .................................................................. 43
MSS measuring chamber (cobas b 221<5/6> systems only) ...................................... 44
Replacing the MSS measuring chamber ................................................................. 44
Replacing the MSS MC cover ................................................................................. 45
Replacing the MSS clip ............................................................................................ 46
Replacing the fan protector (MSS module) ...........................................................46
Replacing the electrode locking lever (MSS module) ............................................46
Replacing the center seal (MSS module) ................................................................ 47
Replacing the MSS measuring chamber amplifier ................................................ 47
Measuring chamber cartridge ....................................................................................... 48
Replacing the measuring chamber cartridge ......................................................... 48
Replacing the MC Actor Control Board ................................................................. 50
COOX module (cobas b 221<2/4/6> systems only) ................................................... 51
Overview .................................................................................................................. 51
Replacing the lamp unit bilirubin .......................................................................... 51
Replacing the PolyOX-KX control board ............................................................... 53
Replacing the Polychromator Bilirubin .................................................................. 54
Replacing the primary light guide .......................................................................... 56
Replacing the cuvette holder ...................................................................................58
Replacing the cuvette ............................................................................................... 59
Replacing the cuvette seals ...................................................................................... 59
Replacing the tubing set tHb/PolyOX .................................................................... 59
Replacing the hemolyzer .........................................................................................60
Replacing the Hemolyzer tube ................................................................................ 61
Replacing the HSIN board ...................................................................................... 61
tHb/SO
2
module (cobas b 221<1/3/5> systems only) ................................................ 62
Replacing the tHb/SO
2
module ..............................................................................62
Replacing the tubing set tHb/PolyOX .................................................................... 63
Replacing the tHb/SO
2
heating unit .......................................................................63
Replacing the Hb cartridge .....................................................................................63
Peristaltic pumps (PP) ..................................................................................................64
Replacing a peristaltic pump ..................................................................................64
Replacing the pump head ....................................................................................... 66
Replacing the pump tube ........................................................................................67
Bottle compartment ......................................................................................................67
Replacing the bottle compartment cover ...............................................................67
Replacing the gas dampers ......................................................................................68
Replacing the waste separator .................................................................................68