65
4.1 Troubleshooting
⚝ᒁ
4
3
2
1
7
6
5
10
9
8
The batteries run
out immediately.
You are using nickel-metal-hydride battery or
manganese batteries.
o
Replace the batteries with alkaline batteries.
The instrument
won’t turn on.
The batteries are dead.
o
Replace the batteries.
The batteries have been installed improperly.
o
Install the batteries in the proper orientation.
The insulation
resistance
measured value
increases over
time.
This phenomenon reflects the influence of the
measurement target’s capacitance component.
o
This is not a malfunction or error.
If the measured value fluctuates gradually, wait
for it to stabilize and then use that value.
There is excessive
variation in the
measured value.
(With the IR4052,
the measured
value can be
made easier to
read by reducing
the number of
display digits.)
The variation is caused by induced noise from a
charging circuit located near the measurement
target.
o
Disconnect the circuit breaker for any nearby
charging circuits. If this is not possible, use the
lowest measured value as the measurement
result.
The measurement target has a large capacitance
component (capacitor).
o
If it is possible to remove the capacitor, do so. If
not, use the lowest measured value as the
measurement result.
Symptom
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