19
7. Error messages
Display
Caused by
Action
Measurement (pH, mV, temperature) out of
range.
Check sensor.
Low battery charge.
Replace the batteries.
E1
Unstable reading during a stability measurement
or during calibration.
100-second timeout.
Check that the sensor is properly immersed in
the sample.
E2
pH electrode sensitivity out of range.
Accepted values 70-105 %.
Connect a new electrode.
E3
Asymmetry potential out of range.
Accepted values ± 58 mV.
Connect a new electrode.
E4
Buffer solution not recognised.
Check sensor.
Check buffer solution.
E5
Same buffer solutions.
Check sensor.
Check buffer solution.
E6
The calibration solutions have different
temperatures.
Adjust the calibration solutions to the same
temperature.
ENGLISH
PH1_HACH_LANGE_0710.indd ANG:19
PH1_HACH_LANGE_0710.indd ANG:19
7/9/10 15:41:03
7/9/10 15:41:03
