horiba LAQUA-PC1500, Инструкция по эксплуатации

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Error Messages and Troubleshooting
67
● How to check for instrument defect
Short the metal part of the outer tube to the center pin of the electrode
connector of the corresponding channel of the instrument. If the
measured value blinks or does not show zero, consult your dealer.
Repeatability of the measured value is poor
Nothing appears when the power is turned ON
Swelling of keypad
Cause How to solve problem
Effect of the sample solution.
Repeatability becomes poor when the pH of the
sample changes over time.
The electrode is dirty. Clean the electrode.
The electrode is broken. Replace the electrode.
The internal solution of the
electrode runs out or
contaminated.
Replace the internal solution with new one.
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
Instrument defect. Consult your dealer.
Power is not supplied. Connect the AC adapter.
Cause How to solve problem
Using the instrument at high elevation
or other location where the air pressure
is different from sea level.
To eliminate the pressure difference between the
inside and outside of the instrument, briefly open and
then close the serial connector cover. After opening,
correctly close the cover to maintain dust and water
proofing.
Instrument defect. Consult your dealer.