Electrolysis Device SGM5EL Operation
26
For the adjustment the following equation applies: Vcellkorr=(Vz+A)*B
With Vz=measured cell voltage, A=cell voltage at zero point, B=factor for final
value adjustment.
Report of the calibration status:
OK (1.5)
Last calibration OK (calibration value)
WAIT ! 5
Calibration running
BREAK
Cancel by pressing key
TIME OUT
Stability not reached within 30 sec
OUT OF RANGE
Range exceeded
FAILED
Device error
8.4 Fault clearance
Disturbance
Cause
Clearance
SGM off
Switch on SGM
Display off
No current supply
Check current supply and cord
set
Equipment fuse tripped
Change equipment fuse
Relatively high measuring
value, although a low value
for the oxygen concentration
is expected
Gas flow too low
Increase flow
Measurement is dependent
on the throughput (the smaller
the flow, the higher the value
or vice versa)
Leaks in the measuring gas
supply
Check measuring gas supply
and fittings
Measurement is significantly
lower than expected
Reacting components (at high
temperatures with oxygen) in the
measuring gas (e.g.
hydrocarbons)
Use carbon filter or check
existing filters for saturation
Measuring cell has not reached
operating temperature yet
Wait for 5 minutes
Warning: “Warm up”
Fuse for sensor heater tripped
Switch off
Check again after switching on
Consult service if necessary
Heater or regulator defective
Consult service
Warning: Error thermocouple
Thermocouple defective
Consult service
Warning: System error
Measuring cell probably defective
Consult service
Warning: Range
Oxygen concentration so low that
electronics is overdriven
Measuring gas might contain
combustible components which
react with the oxygen
Electrolysis current too low
Electrodes defective
Send SGM5-EL to manufacturer
Cell voltage of analysis cell
too low (lower than expected)
Leaks or electrodes of the
analysis cell defective
Check gas connections
Send SGM5-EL to manufacturer
if necessary
Expected electrolysis current
not reached
Capacity of electrolysis cell
reached
Adapt measuring gas to
measuring conditions