Hioki 3155-01, Instruction Manual

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5.4 Enclosure Leakage Current Measurement Mode (ME Equipment)
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NOTE
Equipment to be measure
Red 9170 TEST LEAD
Black 9170 TEST LEAD
9196
Signal input or signal output part
which is not protectively earthed
Insulating transformer
(2) Measurement between parts of the enclosure (With class equipment, between
parts of the enclosure which is not protectively earthed)
1. On the enclosure leakage current measurement screen, set the contact
condition to "between parts of the enclosure."
2. Plug the power cord of the equipment to be measured into the auxiliary
power socket found on the right side of the 3155. No connection is made for
internally powered equipment.
3. Connect the red 9170 TEST LEAD to the leakage current measurement
terminal T2, and the black one to T1.
4. Touch the red and black 9170 TEST LEADS between parts of the enclosure
of the equipment to be measured.
For 110% applied voltage
Make the appropriate output settings for the 9196 APPLY UNIT.
Set the polarity toggle switch and the type toggle switch to match the applied
part type of the equipment to be measured.
POLARITY:
NORMAL or REVERSE
APPLIED PART (TYPE): B/BF , CF
Touch the voltage application probe of the 9196 APPLY UNIT to the signal
input or signal output part which is not protectively earthed of the equipment
to be measured.
Press the voltage application button on the voltage application probe.
The application of voltage is in effect only as long as the button is being
pressed.
110% voltage application is performed nder single fault condition, but because this
cannot be set by the 3155, the setting is normal condition.
Because the allowable value setting is quite different from that of conventional
normal condition settings, care is necessary when making this setting.