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Voltage Measurement
3.7 Voltage Measurement
This instrument can measure the AC voltage and DC voltage of
commercial power. The instrument can check to ensure that the
measuring object is not live before measuring insulation resistance.
• During measuring, do not switchover to other functions.
• For waveforms other than sine waves, some errors may occur.
• Displayed values can frequently uctuate due to induction
potential even when no voltage is applied. This, however, is not a
malfunction.
Example: When measuring the voltage between the circuit and ground
1
2
3
4
Earth
Source
(primary side)
Line
Always connect the test lead
to the secondary side of the
breaker.
Load
(secondary side)
1
Set the rotary switch to V.
2
Connect the black test lead to the earth side of the object
being measured.
3
Connect the red test lead to the line side of the breaker.
4
Check the value after the indicator has stabilized.
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