Roche cobas b 221 system

Roche Diagnostics May 2009
D-38 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
Module stops
Error 20016 "FMS volume error"
The calibration solution is not aspirated into the BG measuring chamber in the
specified time.
o Aspirate CAL B.
h [System] > [Utilities] > [Fluid actions] > [Fill routines].
o Call up the general fluidics test.
h [System] > [Diagnostics] > [General fluidics test].
o Call up the "Mixing system" calibration after correcting any errors.
h [System] > [Calibrations] > [Mixing system] > [Start].
o Install a new S2 Fluid Pack.
o Replace pump tube of main pump.
e For instructions, see Replacing the pump tube on page B-67.
o Test functioning of the BG measuring chamber by using the electrode simulator:
Simulator test ok:
O Replace SCon.
O Replace fluid mixing system.
e For instructions, see Replacing the FMS on page B-33.
Simulator test not ok:
O See next item.
o Test functioning of the ISE measuring chamber by electrode simulator:
Simulator test ok:
O Replace BG measuring chamber.
e For instructions, see Replacing the BG measuring chamber on page B-40.
Simulator test not ok:
O Replace mainboard unit.
e For instructions, see Replacing the Mainboard unit on page B-89.
Error 20017 "FMS error"
The mixture ratio falls outside the specified range.
o Aspirate CAL A and CAL B.
h [System] > [Utilities] > [Fluid actions] > [Fill routines].
o Call up the general fluidics test.
h [System] > [Diagnostics] > [General fluidics test].
o Install a new S2 Fluid Pack after correcting any errors.