Chapter 15 Maintenance and troubleshooting
15.2 Troubleshooting
202 HORIBA
● ERR No.03 The electrode will not stabilize
Explanation
The electric potential did not stabilize within
three minutes.
Cause How to solve problem
This is caused by the
effect of the sample
solution (when the
sample solution is pure
water or other solution
with low conductivity or
the pH concentration
or temperature
change).
Press the MEAS key again while “HOLD” is
either flashing or steadily lit in the display, to
measure the sample using instantaneous
value measurement.
The electrode is dirty. Wash the electrode.
The electrode is
cracked.
Replace the electrode.
The responsive glass
membrane of the elec
-
trode has been dry for
a long time.
Soak the membrane (on the electrode) in
pure (de-ionized) water for 24 hours.
The temperature of the
sample solution is fluc
-
tuating.
Measure after the sample solution tempera-
ture stabilizes.
AutoHold is set to
ACCURATE
Change the AutoHold setting to STANDARD
or HANDY
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