Hioki Super megohm SM7110 - Maintenance and Service; Troubleshooting; General Items

157
12
Maintenance and Service
12.1 Troubleshooting
If damage is suspected, check the “Q&A (Frequently Asked Questions)” section before contacting
your authorized Hioki distributor or reseller.
Q&A (Frequently Asked Questions)
General items
No. Trouble Conrm Possible causes, solution Reference
1-1
The instrument
cannot be turned
on (nothing is
displayed).
Power switch
(rear)
OFF
The power is not supplied.
→ Flip the power switch (rear).
p. 36
ON
The power is not supplied.
→ Check the conduction of the power
cables.
→ Check if the breaker for the equipment
is switched on.
p. 36
The power voltage or frequency is
di󰀨erent.
→ Check the power rating.
(100 V to 240 V, 50 Hz / 60 Hz)
–
The screen is dark.
→ Adjust the backlight brightness and
contrast.
p. 104
1-2
The keys cannot
be operated.
Display
[K.LOCK]
is
displayed.
The keys are locked.
→ Deactivate the key lock.
p. 100
[I.LOCK]
is
displayed.
The instrument is placed in the interlock
state.
→ Deactivate the interlock.
p. 62
[RMT] is
displayed.
The instrument is placed in the remote
state.
→ Deactivate the remote control.
p. 138
1-3
Judgment results
are not displayed.
Measured
values
are
displayed.
The comparator function is set to OFF.
→ Set the function to ON.
p. 89
are not
displayed.
(Non-
values are
displayed)
If measured values are not displayed,
judgment is not done and the indicator is
not displayed.
–
1-4
Buzzer cannot be
heard.
Key operation
tone setting
OFF
The key operation tone is set to OFF.
→ Set the function to ON.
p. 99
Judgment
sound setting
OFF
The judgment sound is set to OFF.
→ Set the function to ON.
p. 91
1-5
I want to adjust
the buzzer
volume.
The buzzer volume cannot be adjusted for this instrument. –
1-6
The measured
values are not
displayed.
Run self-calibration.
If an error is displayed, internal damage may have occurred. Contact
your authorized Hioki distributor or reseller.
p. 60
12 Maintenance and Service
12
Maintenance and Service