horiba LAQUA-EC1500, Instruction Manual

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Error Messages and Troubleshooting
51
The indicated value does not change/No response
The measured value is out of the measurement range
When the measured value is below the display range, “Ur” appears. When the measured value
is over the display range, “Or” appears.
Some effects of the sample. Response time may slow down, depending on
the properties of the sample solution.
Cause Solution
The electrode is broken. Replace the electrode.
The electrode is not connected
correctly.
Connect the electrode correctly.
Keys are locked. Turn OFF the power, remove the batteries, and
then turn ON the power again.
The instrument is in HOLD state. Push the MEAS, and cancel the HOLD state.
Instrument defect. Consult your dealer.
Cause Solution
Sample is out of the measurement
range.
Use a sample within the measurement range.
The conductivity electrode cable is
broken.
Replace the electrode.
Cell constant is not set. Set the cell constant.
Calibration is not performed or
performed incorrectly.
Perform calibration correctly.
Instrument defect. Check as explained below.
Cause Solution