Error Code Overview - Kendro HERAcell 240 Operating Instructions Manual

®
HERAcell 240 CO Incubator Operating Instructions
2
7. Control, Displays, Indicators
7.9

Error Code Overview

Code Designation
44 CO metering cell faulty. NV RAM faulty
2
2
55 I C bus error
66 Differences between the
individual temperature
probes.
77 CO calibration range
2
exceeded.
88 Error during auto-start
99 Unit door(s) open.
100 Temperature below set-
point
101 Temperature above set-
point.
104 Temperature probe
faulty
200 CO below setpoint
2
201 CO above setpoint
2
204 CO metering cell faulty. Sensor break/short circuit
2
500 ContraCon routine tem-
perature below setpoint
501 ContraCon routine tem-
perature above setpoint.
502 ContraCon routine error
Version: 03.2001 / 50065640
Possible cause
Measured value quality below
50 %.
The temperature signal is no
longer plausible.
Maximum compensation value
exceeded.
Total time has passed or the
max. compensation value has
been exceeded.
Door(s) open for longer than
10 minutes.net
Actual value < setpoint –1° C
Actual value > setpoint +1° C
Probe break / short circuit
Actual value < setpoint –1 %
•
No CO ;
2
•
Insufficient pressure;
•
Supply line blockage.
Actual value > setpoint +1 %
•
Pressure too high.
Actual value < 85° C
Actual value > 95° C
Power failure during the pre-
heat or hold phase.
- 43 -
Corrective action
Contact the Kendro Service.
Remove the source of the interference, e.g.,
cell phone.
Contact the Kendro Service.
Contact the Kendro Service.
Repeat auto-start.
Close unit door(s).
Contact the Kendro Service.
Make sure ambient temperature is below
permissible maximum. Contact the Kendro
Service.
Contact the Kendro Service.
Check the gas supply:
•
Change gas bottles.
•
Increase pressure to 1 bar, max.
•
Check the supply lines to the unit.
Check the gas supply:
•
Reduce pressure to 1 bar.
Contact the Kendro Service.
Repeat the decontamination routine. Contact
the Kendro Service as required.
Contact the Kendro Service.
Acknowledge the error by pressing the "Con-
traCon Routine" key (twice for 5 seconds),
then restart the routine.