Xylem ProLab 4000 MULTIPARAMETER BENCHTOP METER - Manual (Page 192)

What to do if... ProLab 4000
192 ba75646e02 01/2010
Warning [TempErr]
Warning [ISEErr]
16.3 Conductivity measurement
Conductivity measuring
cell was not recognized
Error message, Error
(invalid calibration)
CalClock
with red frame
Cond temp?
Cause Remedy
– Temperature difference
between measurement and cali-
bration greater than 2 K.
– Adjust the temperature of
the test sample
Cause Remedy
– Electrode voltage outside cali-
brated 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
– Test sample does not have the
correct temperature (max. ± 2
°C temperature difference from
calibration temperature)
– Adjust the temperature of the
test sample