SICK GM35

124
8009389/YN39/V3-0/2015-08| SICKOPERATING INSTRUCTIONS|GM35
Subject to change without notice
TROUBLESHOOTING AND CLEARING MALFUNCTIONS
10.3.3 Error messages for the measuring probe
The following error messages can be displayed on the evaluation unit via menu
malfunction.
10.3.4 Warning messages for the GM35 SR-unit
Error message Component/possible causes Clearance
Sensor communication
No connection between
evaluation unit and measuring
probe.
▸ Check CAN connection,
repair when necessary
▸ Check power plug on
the probe, repair when
necessary.
EEPROM defective
Permanent memory is not
initialized or defective.
▸ Contact Service.
Warning message Component/possible causes Clearance
Chopper freq.
Chopper disk frequency outside
tolerance.
▸ Exchange lamp module;
contact Service.
CO Low sig.
N
2
0 Low sig.
● CO (N
2
0) measuring duct
contaminated.
● Dust content too high.
● IR source aged.
▸ Check contamination; clean
optical interfaces (
see
page 104
f).
▸ Check optical alignment,
see
page 111
.
▸ Exchange IR source or contact
Service.
CO not ready
N
2
0 not ready
● CO (N
2
0) measurement not yet
ready.
● Signal distorted.
● Warming up phase.
▸ Wait approx. 30 minutes until
the operating temperature is
reached.
▸ Contact Service if necessary.
CO Reference
N
2
0 Reference
Deviating control value
measurement too high.
▸ Carry out zero adjust on
GM35;
see page 87.
▸ Perform maintenance,
see
page 99
.
▸ Contact Service if necessary.
CO2 Reference
Deviating control value
measurement too high.
▸ Carry out zero adjust on
GM35;
see page 87.
▸ Perform maintenance,
see
page 99
.
▸ Contact Service if necessary.
H2O Low sig.
● H2O measuring duct
contaminated.
● Dust content too high.
● IR source aged.
▸ Check contamination; clean
optical interfaces
(
page 104f).
▸ Check optical alignment,
see
page 111
.
▸ Exchange IR source or contact
Service.
H2O not ready
● CO
2
/H
2
O measurement not
yet ready.
● Signal distorted.
● Warming up phase.
▸ Wait approx. 30 minutes until
the operating temperature is
reached.
▸ Contact Service if necessary.