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Model UT512: OPERATING MANUAL
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B. Measuring Insulation Resistance
Figure 5. Insulation Resistance Measurement
Operating Caution
When performing insulation resistance tests,
remove all power from the circuit to be
measured and discharge all the power.
Operating the Meter must be very careful as it
outputs dangerous voltage during
measurement. Must make sure the tested object
is firmed clipped, hands are away from the
clips, then press TEST button to put high
voltage.
Do not short circuit the testing leads during
high voltages output or test insulation
resistance after high voltages output. This kind
of incorrect operating may cause sparking and
fire, which damages the Meter and harms to
you.
Do not measure over 10 seconds when:
500V measure resistance lower than 2M
Ω
1000V measure resistance lower than 5M
Ω
1500V measure resistance lower than 8M
Ω
2500V measure resistance lower than 10M
Ω
Green
Groud
