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6.4 Interlocking Function – Using the HV-EN Connector
The super megohmmeter generates a high voltage to be used as a testing
power source. It is dangerous if this measuring voltage is output to the
sample not ready for measurement, yet. To protect the operator from a
hazard of electrical shock, the HV-EN (high voltage enable) connector is
provided on the rear of the unit to provide an interlocking function in
combination with a measuring jig.
If a measurement does not use a jig with an interlocking mechanism, keep
the HV-EN connector plugged with the accessory shorting plug.
Usage of the HV-EN Connector for Interlocking
Connect the HV-EN connector to a switch to be actuated by the
interlocking mechanism of a measuring jig via an optionally available
HV-EN plug connected with a cord. Fig. 6.4.1 shows an example
interlocking circuit.
The optional accessories shown below have a safety interlocking switch.
SME-8310 – Electrode for plate samples
SME-8311 – Electrode for plate samples
SME-8350 – Shield box
Connect the plug at the end of the measuring cord of the optional
accessory to the HV-EN connector on the rear of the unit.
For connection of a customer designed measuring jig to the HV-EN
connector, use an optional HV-EN plug.
Fig. 6.4.1
Optional HV-EN Plug
(User should solder a
proper cord to the plug.)
Interlocking
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