Hioki MO HiTESTER 3452, Инструкция по эксплуатации

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Chapter 2 Measurement
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2.3 Discharging Function
When measuring an insulation resistance
that contains a capacitance element, a charge
proportional to the measurement voltage
accumulates, and if undischarged could lead
to an electric shock accident.
After measurement carry out the following
procedure.
1. Without removing the test probes from the
item being measured, turn the MEASURE
switch off.
2. The built-in discharge circuit automatically
discharges the item. (During the discharge,
the needle will return slowly to the infinity
(
∞ ) positions.)
3. The discharge is completed when the needle
reaches the infinity mark. The time required
for discharge depends on the capacitance
value.