What to do if... ProLab 2000
100
ba75577e03 11/2009
Warning [TempErr]
Warning [ISEErr]
6.3 Conductivity measurement
Conductivity measuring
cell was not recognized
Error message, Error
(invalid
calibration)
CalClock flashes
6.4 D.O. measurement
D.O. sensor was not
recognized
Cause Remedy
– Temperature difference
between measurement and
calibration greater than 2 K.
– Adjust the temperature of
the test sample
Cause Remedy
– Electrode voltage outside
calibrated range
– Recalibrate
Cause Remedy
– Measuring cell not connected – Connect measuring cell
– Cable broken – Replace measuring cell
Cause Remedy
– Measuring cell contaminated – Clean cell and replace it if
necessary
– Unsuitable control standard – Use control standard,
0.01 mol/l KCl
Cause Remedy
– Calibration interval expired – Recalibrate the measuring
system
Cause Remedy
– Sensor not connected – Connect probe
– Cable broken – Replace probe
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