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Chapter 4 Maintenance and Troubleshooting
4.4 Troubleshooting
F-74BW
109
●
The indicated value does not change/No response.
●
The details when the AC adapter is disconnected.
Refer to "
●
Date Setting" P.34, and set date and time.
Lithium battery replacement
Cause
Countermeasure
Key operation is
invalid.
Disconnect and reconnect the AC
adapter, and press the ON/OFF key 10
seconds later.
If the same error occurs again, seek
repairs at contact HORIBA sales
representative.
The electrode con-
nector is not
attached correctly.
Turn the power OFF, then turn it back ON
again.
The electrode is
defective. (The
responsive mem-
brane is cracked.)
Replace the electrode.
The pH meter is
defective.
Contact HORIBA sales representative.
Cause
Countermeasure
No lithium battery
is set.
Set the lithium battery (CR2032).
The lithium battery
runs down.
Replace the lithium battery (CR2032).
Lithium battery
Summary of Contents for F-74BW
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