Hioki 3153 - Automatic Discharge Function

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4.6 Automatic Discharge Function
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NOTE
The unit does not return to the READY state until the
DANGER
lamp goes out
upon completion of the test. Until the unit returns to the READY state, no key
operation is accepted.
With an optional setting, the unit can change to the READY state, regardless of
the
DANGER
lamp indication, upon completion of the test (see Section 7.14
START Protection Function).
In such a case, the voltage output terminals may contain residual electricity even
when the unit is in the READY state.
4.6 Automatic Discharge Function
When a test object that contains a capacity component is subjected to a
insulation-resistance test, the object might remain electrically charged,
thereby causing an electric shock. This unit is equipped with a function to
discharge residual electricity upon termination of the insulation-resistance
test (discharge resistance: 726 kΩ).
The unit automatically switches to the internal discharge circuit to discharge
the test object (the
DANGER
lamp is lit).
When the voltage between the output terminals falls below the safety voltage
(approximately DC 60 V), the
DANGER
lamp goes out. The larger the
capacity component of the test object, the more time is required to discharge
the test object.