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Chapter 4 Maintenance and Troubleshooting
4.2 Troubleshooting
72
4.2.2 More troubleshooting
This section describes the countermeasures for the
troubles that are not indicated by ERROR messages.
●
The indicated value fluctuates
When there is a problem with the electrode.
When there is a problem with the instrument.
Cause
Countermeasure
The responsive
membrane is dry or
dirty.
Wash the responsive membrane.
The responsive
membrane is dam-
aged or worn out.
Replace the electrode.
There are air bub-
bles on the elec-
trode.
Shake the electrode to remove the air
bubbles.
There is no stan-
dard solution
remaining.
Fill the electrode with new standard solu-
tion, as noted in the operation manual of
the electrode.
The wrong stan-
dard solution is
being used.
Use the correct standard solution.
Cause
Countermeasure
There is a motor or
other device caus-
ing electrical inter-
ference.
Measure at a place where no influence
from induction is given.
Ground all AC-powered equipment
The electrode is
not connected cor-
rectly.
Connect the electrode correctly.
Содержание LAQUA F-71G
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