66
Troubleshooting
5.1 Troubleshooting
Before Returning for Repair
If damage is suspected, check the "Troubleshooting" section below
before contacting your authorized Hioki distributor or reseller.
Symptom
Check Items
Remedy and Reference
Unable to perform
measurement.
Are you setting the rotary
switch while the
MEASURE
key turned on?
Turn off the
MEASURE
key
and then press it again.
Is the voltage between the
measuring terminals over
any of the following values
before turning on the
MEASURE
key?
50 V to 250 V range:
Approx. 90 V
500 V and PV
Ω
500 V
ranges: Approx. 500 V
1000 V and PV
Ω
1000 V
ranges: Approx. 1000 V
Separate the measurement
object from all sources of
power before performing
measurement.
During insulation
resistance, low
resistance, or PV
Ω
measurement, the
live circuit indicator
and the display
blinks in red, and
the buzzer sounds.
Does the voltage applied
between the measurement
terminals exceed the
following values?
Insulation resistance, PV
Ω
:
approx. 20 V
Low resistance: approx. 5 V
Make save that the
measurement target is
disconnected from a live
circuit. If voltage exists in
the measurement target, the
live circuit indicator blinks.
Unable to perform
measurement in
500 V, 1000 V or
PV
Ω
range.
Is the function to prevent
the application of voltage
by mistake locked?
Release the lock function.
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