horiba LAQUA 2000 Series, Инструкция по эксплуатации

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Error Messages and Troubleshooting
70
● Troubleshooting
T
his section describes causes and actions to take for problems that customers frequently ask.
The indicated value fluctuates
< Problem with the electrode >
<
Problem with the instrument
>
HIGH OFFS High offset
Appears when input temperature is below/
above 10 °C from original value during
temperature calibration.
UNDR RANGE Under range Entered value is outside the setting range.
Please confirm the setting range and enter
value correctly. OVER RANGE Over range
CAL LMT
Calibration limit
exceeded
The maximum number of calibration points that
can be calibrated has been exceeded. Clear the
calibration data.
Cause How to solve problem
The electrode is dirty. Clean the electrode.
The electrode is cracked. Replace the electrode.
The wrong internal solution is being
used.
Use the correct internal solution.
There are air bubbles on the
electrode.
Shake the electrode to remove the air bubbles.
The level of internal solution in
reference electrode is low.
Replenish the internal solution of the reference
electrode until it is higher than the level of the
sample.
Cause How to solve problem
There is a motor or other device
causing electrical interference.
Measure at a place where no influence from
induction is given. Ground all AC-powered
equipment.
The electrode is not connected
correctly.
Connect the electrode properly.
Error Definition Cause and Solution