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6.8.2 When Using an Optional Electrode for Plate Samples or Shield Box
When using an electrode for plate samples (for example the SME-8310; or the
SME-8350 shield box, etc.), which is an option designed specifically for use
with the megohmmeter, the following guidelines should be observed when
wiring the instrument and performing measurements:
1) To prevent the hazard of electric shock, be sure to ground either the
ground pin of the 3-pin power cable or the ground terminal on the rear
of the instrument before use. When using a power plug conversion
adapter (3-pin to 2-pin conversion adapter), be sure to ground the
ground lead from the adapter.
2) Connect the option’s red cable to the instrument’s Rx- terminal and the
option’s black cable to the instrument’s Rx+ terminal.
3) Remove the shorting plug from the HV-EN connector on the rear of the
instrument.
4) Connect the interlock (HV-EN) plug from the electrode for plate samples
or the shield box to the HV-EN connector on the rear of the instrument.
5) When using the SME-8350 shield box, directly ground the shield box’s
ground terminal or connect it to the ground terminal on the
megohmmeter.
*When using a shield box, failure to ground the ground terminal may
cause measured values to oscillate.
6) Completely close the electrode for plate samples and shield box lid.
(Starting measurement without first closing the lid completely will
trigger the hazard prevention interlock.)
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