Hioki 3155-01, Инструкция по эксплуатации

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5.7 Patient Leakage Current Measurement Mode
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5.7.3 Zero Adjustment (ME Equipment - Patient Leakage
Current )
9196
Equipment to
be measured
T2
Insulating transformer
In cases where the voltage from the 9196 APPLY UNIT or other voltage
application devices is applied to the 3155 when making a measurement, the
measured value may be subject to synchronous voltage. In which case, an
accurate measurement cannot be obtained without first performing zero
adjustment. Always perform zero adjustment before measuring.
After performing zero adjustment, the value remains in memory even if the
measuring mode is changed. If the voltage of the voltage application device is
changed, perform zero adjustment again. Zero adjustment is possible in a
range from 0 to 500
μ A.
Zero Adjustment
1. Touch the tip of the voltage application probe of the 9196 APPLY UNIT to
the leakage current measurement terminal T2 of the 3155.
In this case, do not connect the black 9170 TEST LEAD to the leakage
current measurement terminal T1 and the applied part of the equipment to
be measured.
2. Make any necessary settings for the 9196 APPLY UNIT output.
3. Press the voltage application button to the probe. Voltage is applied only
when the button is being pressed.
4. Press the key on the screen to perform zero adjustment. When zero
adjustment is finished, is displayed on the measuring mode screen, and
indicates that zero adjustment is effective. Press the key again to
release zero adjustment.
5. Turn OFF the voltage application button to the probe.