3.2 Measuring Insulation Resistance
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付録
索引
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3.2.4 Automatic Discharge Function
• When insulation resistance with a capacitance component
is measured, this component remains charged with a
high-voltage equivalent to the test voltage, which is dan-
gerous.
• This instrument automatically discharges remaining elec-
tric charge using the internal circuit after measurement.
• Make sure that the test leads are connected to the measured
object when pressing the key to stop measure-
ment.
• Discharging stops when the residual voltage falls below 10
V. The discharge time varies depending on the capacitance.
After the voltage has been decreased by
the instrument’s automatic discharge func-
tion, the voltage in the measurement area
may rise again due to the remaining charge
in the capacitor C
A shown in the diagram in
section 3.2.6. Take great care when touch-
ing the object under test.
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