horiba F-74BW, Instruction Manual

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Chapter 4 Maintenance and Troubleshooting
4.4 Troubleshooting
F-74BW 101
●
ERROR No.0001 Memory ERROR
Definition
Data cannot be read from or written to the internal
memory.
●
ERROR No.0003 Unstable reading ERROR
Definition
The electric potential does not stabilize within three
minutes.
Cause Countermeasure
The instrument
does not start
properly due to
noise or other at
power ON. Disconnect and reconnect the AC
adapter, and press the ON/OFF key 10
seconds later.
If the same error occurs again after the
countermeasure is performed, contact
HORIBA sales representative.
The internal IC is
defective. Contact HORIBA sales representative.
Cause Countermeasure
This is caused by
the effect of the
sample solution
The sample solu-
tion is pure water or
other solution with
low conductivity, or
the pH concentra-
tion or temperature
change. Press the MEAS key again while “HOLD”
blinks or lights up, 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 electrode has
been dry for a long
time. Soak the membrane (on the electrode) in
pure water (deionized) for 24 hours.