117
11
Maintenance and Service
11.1 Troubleshooting
• If damage is suspected, check the “Troubleshooting” section before contacting your authorized Hioki
distributor or reseller.
• When sending the instrument for repair, pack carefully to prevent damage in transit. Include cushioning
material so the instrument cannot move within the package. Be sure to include details of the problem. Hioki
cannot be responsible for damage that occurs during shipment.
• The fuse is housed in the power unit of the instrument. If the power does not turn on, the fuse may be blown.
If this occurs, a replacement or repair cannot be performed by customers. Please contact your authorized
Hioki distributor or reseller.
Q&A (Frequent inquiries)
General items
No. Trouble Conrm Possible causes → Solution Ref.
1-1
Power is still
OFF (nothing is
displayed).
Main power
switch (rear)
OFF
Power is not supplied.
→ Turn ON the main power switch (rear).
p. 19
ON
Power is not supplied.
→ Check the conduction of power cables.
→ Check if the breaker for the equipment
is turned ON.
p. 19
Power voltage and/or frequency are
different.
→ Check the power rating.
(100 V to 240 V, 50/60 Hz)
−
The screen is dark.
→ Adjust the backlight brightness and
contrast.
→ External trigger setting automatically
reduces the backlight brightness if a non-
operation state continues for 1 minute.
p. 66
1-2
Keys cannot be
operated.
Display
[LOCK]
is dis-
played.
The key is locked.
→ Release the keylock.
p. 63
[RMT]
is dis-
played.
The instrument is in remote state.
→ Release the remote state.
p. 100
1-3
Judgment results
are not displayed.
Measurement
values
are dis-
played.
Comparator function is OFF.
→ Turn the function ON.
p. 50
are not
dis-
played.
(Non-
values
are dis-
played)
When measurement values are not
displayed, judgment is not done and the
indicator is not displayed.
−
1-4
Buzzer cannot be
heard.
Key operation
tone is set to
OFF
Key operation tone is set to OFF.
→ Turn the function ON.
p. 65
Judgment tone is
set to
OFF
Judgment tone is set to OFF.
→ Turn the function ON.
p. 55
11 Maintenance and Service
11
Maintenance and Service