500
des
"des" temperature
below setpoint
Actual value < 180°C -10°C Repeat the disinfection process Con-
tact the service department of Thermo
Electron Gmbh if necessary
501
des
"des" temperature
above setpoint
Actual value > 180°C
+10°C
Contact the service department of
Thermo Electron Gmbh
502
des
Error during disinfec-
tion procedure
Power failure > 1 sec
Press the des buton (Fig.4, (7)) to re-
set the error and repeat the disinfec-
tion procedure; check voltage supply
for power failure
A malfunction of the unit is not the only explanation for error codes 101, 201. They can also be
displayed after a setpoint is decreased.
Example:
When operating the unit with the setpoint entered for 10% CO
2
:
If the CO
2
setpoint is decreased to 5% CO
2
, the unit cannot reach this lower CO
2
concentration
quickly enough due to its tightness. Error 201 is displayed.
The designated error messages are displayed when:
Setpoint < actual value.
Setpointtemperatur < ambient temperature + 5°C
To avoid this, open the doors for a short time. This also applies to the reduced temperature.
If these measures are unsuccessful or if errors with undefined codes occur, please notify our
service department (refer to Appendix).
When requesting our service, please state the scanned error code.
6. OPERATE
26/43
50 079 041