Fault
Sensor measured value is
arbitrary and sensor current
is greater than 20 mA
Sensor measured value is
not steady
Instructions for troubleshooting and fault remedy
Possible cause
The bromine content is
greater than the upper
measuring range
Distance between mem‐
brane/electrode is too great
Sensor defective
Pressure fluctuations in the
measuring line
Reference electrode defec‐
tive
Remedy
Check system, clear faults,
repeat calibration
Screw the membrane cap
completely in
Send away sensor
Check the installation loca‐
tion and change as neces‐
sary. If necessary, change
the process
Send sensor in for regener‐
ation
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