Automatic Discharge Function - Hioki ST5520-01 Instruction Manual

Automatic Discharge Function

4.5 Automatic Discharge Function
When an insulation resistance test is performed on equipment to
be measured that contains capacitance components, a test voltage
equivalent load is charged which may result in electric shock.
A residual electric charge can be released through the internal circuit of the
instrument.
After tests, follow the procedure below to release any remaining charge.
1
Complete the test without removing the test leads from the equipment to
be measured.
2
The charge remaining in the equipment to be measured is automatically
released in this instrument.
3
During discharge, the TEST lamp blinks.
4
When the voltage falls below approximately 10 V, the TEST lamp turns off.
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WARNING