Horiba Scientific LAQUAact D-72G, Инструкция по эксплуатации

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When an error message appears
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ERR No.0002 Empty battery level
The instrument cannot operate properly because the battery level is empty.
●
ERR No.0003 Electrode stability error
Detected an electrode error because the electrical potential does not stabilize after 3 or
more minutes during measurement or calibration.
●
ERR No.0004 Asymmetric potential error
Detected that the asymmetric potential of the electrode is out of the setting range that
allows proper measurement.
Cause How to solve problem
The battery level is empty. Replace the batteries or connect the AC adapter (option).
Cause How to solve problem
The stability of electrode is
affected by the sample solution.
(The sample solution is solution
with low conductivity, or the pH
concentration or temperature
change).
Read the value without using the automatic hold function.
The electrode is dirty. Clean the electrode.
The electrode is cracked. Replace the electrode.
The responsive glass membrane
of the electrode has been dry for
a long period.
Immerse the responsive glass membrane of the
electrode in pure water (or deionized water) for 24 hours.
The temperature of the sample
solution is fluctuating. Measure the sample solution after its temperature
stabilizes.
Cause How to solve problem
The electrode is dirty. Clean the electrode.
The electrode is cracked. Replace the electrode.
The standard solution
concentration is fluctuating.
Replace the internal solution in the reference electrode.
The electrode is not connected
correctly.
Connect the electrode correctly.
Electrode is not immersed
enough to cover liquid junction.
The electrode must be immersed up to the liquid junction.
As a guide, immerse to at least 3 cm from the tip of the
electrode.
There is a problem with the
standard solution.
Use new standard solution.