Operating instructions

Clearing Malfunctions
GMS810-/GMS811-FIDOR · Operating Instructions · 8013911 V1-0 · © SICK AG 67
Subject to change without notice
Pressure Working pressures cannot
be regulated.
Sample gas flow too low /
too high.
Process pressure outside
specification.
Sample gas filter blocked.
Pressure control defective.
Check utility gases.
Check utility gas lines.
Check pressures.
Remove heated line/sample gas sampling and check
function.
Check/replace sample gas filter.
EEPROM Parameter memory hard-
ware error.
Switch device off/on.
Measured value Measured value not plausi-
ble.
Measured value overflow/
underflow.
Check quality of zero gas, fuel gas and combustion
air.
Switch test gas and check displayed values.
Perform adjustment.
Check parameter settings.
Load user setup.
Load factory setup.
Heated line Heating fault of heated line. Check options.
Check temperature of heated line and, if applicable,
wait until temperature is regulated.
External failure Digital input: External signal
failure.
Check options whether function is desired.
Check initiator of external signal.
Signal ready Digital input: External signal
ready.
Check options whether function is desired.
Check initiator of external signal.
SCI1/RS232 Internal fault. Switch device off/on.
SCI2/RS232 Internal fault. Switch device off/on.
Glow plug Glow plug not working cor-
rectly.
Please contact SICK Customer Service.
Maintenance request
Maintenance mode Maintenance mode is acti-
vated.
Exit maintenance mode after maintenance work.
Setup not released Parameter setting not
released.
Please contact SICK Customer Service.
Logbook Logbook error. Switch device off/on.
Zero point Drift limit exceeded warn-
ing.
Switch zero gas manually and check displayed values.
If required, check test gas line.
Check sample gas inlet block for correct assembly.
Start zero point adjustment again.
Check quality of fuel gas and, if applicable, of zero gas
and combustion air.
If necessary, check zero gas and combustion air con-
ditioning (catalyst).
Ref. point Drift limit exceeded warn-
ing.
Switch reference gas manually and check displayed
values.
If required, check test gas line.
Check sample gas inlet block for correct assembly.
Start reference point adjustment again.
Check quality of fuel gas and, if applicable, of com-
bustion air.
If applicable, check combustion air conditioning (cat-
alyst).
Message Possible cause Possible clearance