Chapter 15 Maintenance and troubleshooting
15.2 Troubleshooting
208 HORIBA
15.2.2 More troubleshooting
This section explains how to respond to vari-
ous symptoms of trouble that are not indi-
cated by an error number.
● Nothing shows up on the display when the power is turned ON
● The indicated value fluctuates
When there is a problem with the electrode;
Cause How to solve problem
AC adaptor is not
properly connected.
Check the connection of the AC adaptor.
The pH meter is
defective.
Contact with the nearest sales representative.
Cause How to solve problem
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 bub-
bles.
There is no standard
solution remaining.
Fill the electrode with new standard solution,
as noted in the electrode
operation manual.
The wrong standard
solution is being
used.
Use the correct standard solution.
Influence of sample. Readout may fluctuate according to the char-
acteristics of sample.
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