36
Insulation Resistance Measurement
Measuring Insulation Resistance
CAUTION
To avoid electric shock, turn off the measuring line
breaker.
Example: When measuring the insulation resistance between the circuit
and the ground
1
OFF
2
1
Turn off the MEASURE key.
2
Set the rotary switch to a test voltage
of 50
V to 1000
V.
In the 500 V or 1000 V range, press
to
release the lock. (p. 35)
Source (primary side)
Load (secondary side)
6
3
4
5
ON
7
OFF
OFF
3
Connect the black test lead to the ground side of the
object being measured.
4
Connect the red test lead to the measuring object.
If there is any remaining voltage on the measuring object, red and white
blink alternately on the backlight.
5
Press and hold the MEASURE key.
To make continuous measurements, pull up the MEASURE key.
(p. 16)
6
Check the value after the indicator has stabilized.
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