Hioki 3155-01, Instruction Manual

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5.7 Patient Leakage Current Measurement Mode
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9196
Black 9170 TEST LEAD
Equipment to
be measured
F-type applied part
T2
Insulating transformer
NOTE
1. Plug the power cord of the equipment to be measured into the auxiliary
power socket found on the right side of the 3155. No power cord connection
is made for internally powered equipment.
2. Connect the black 9170 TEST LEAD to the leakage current measurement
terminal T1.
3. 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
4. Perform zero adjustment. For details, refer to Section 5.7.3, "Zero
Adjustment (ME Equipment - Patient Leakage Current )."
5. Touch the black 9170 TEST LEAD to the applied part of the equipment to
be measured.
6. Touch the tip of the voltage application probe of the 9196 APPLY UNIT to
the leakage current measurement terminal T2 of the 3155.
7. For 110% applied voltage
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.
・ Do not apply 110% voltage if there is any chance that circuitry or other
physical components of the instrument might be damaged.
・ When the auxiliary power socket does not fit the power plug of the equipment
to be measured, use the supplied power plug.
・
Use wire for connecting the accessible metal part which is not an applied part
nor is earthed of the equipment to be measured to the ground, and connect it
to the functional earth terminal on the rear panel of the 9196 APPLY UNIT.
・ When the enclosure of the internally powered equipment is insulating
material, make a measurement on a metal plate larger than the equipment to
be measured.
・ When testing class 0I or other older models, use (UL1015, AWG #18 or
equivalent) wire to connect the G terminal with the protective earth terminal
of the equipment to be measured.
・
When measuring all patient connections simultaneously (type B applied part),
or measuring patient connections simultaneously for each function (type BF
applied part), have on hand a measuring instrument that can handle multiple
measurements.