TriOxmatic
®
690
What to do if...
33
ba25314e05
09/2020
Measured value
fluctuating heavily
Incorrect temperature
display
Mechanical damage to
the sensor
– Sensor has not been calibrated
for a long time
– Clean the outside of the
sensor, then recalibrate
(section 5.2 and section 4.2)
Cause
Remedy
Cause
Remedy
– Membrane head loose
– Screw the membrane cap
tight
– Membrane does not fit snugly on
the gold working electrode
– Change the membrane cap,
then recalibrate (see section
5.3 and section 4.2)
Cause
Remedy
– Temperature sensor defective
– Return the sensor
Cause
Remedy
– Return the sensor
