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7.4 Earth Leakage Current Measurement Mode (Universal)
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7.4.3 Zero Adjustment (Earth Leakage Current)
Table tap
NOTE
In cases where the extension cable (power socket conversion cable, table tap,
etc.) is connected to the auxiliary power socket when making a measurement,
the measured value may be subject to leakage current of the extension cable.
In which case, to obtain an accurate measurement, perform zero adjustment
before measuring.
Value of leakage current in the extension cable to be offset by zero adjustment
varies depending on if voltage is applied or not. Zero adjustment is performed in
the condition that voltage is applied.
Value determined by zero adjustment is saved after power is turned off. It is
effective unless changing supply voltage and/or the extension cable.
Zero Adjustment
1. Display the earth leakage current measurement screen.
2. Connect the extension cable to the auxiliary power socket. In this case, do
not connect the equipment to be measured to the extension cable.
3. 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, and
zero adjustment is cancelled, the normal measured value returns and
disappears.
In all equipment to be measured, zero adjustment defaults to the combination of
normal condition with normal polarity and switches back to previous condition and
polarity of the equipment to be measured.
During manual measurement, condition and polarity settings may cause zero
adjustment value to fail to set to zero.
Summary of Contents for 3155-01
Page 1: ...LEAK CURRENT HiTESTER INSTRUCTION MANUAL 3155 01...
Page 2: ......
Page 12: ......
Page 27: ...7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A Chapter 2 Names and Functions of Parts...
Page 45: ...25 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A Chapter 4 Preparations for Measurement...
Page 243: ...223 7 7 System Screen Universal Example of a data unit printout Example of a details printout...
Page 314: ...294...
Page 322: ...302 9 3 Accuracy Tables...
Page 334: ...314 10 6 External Dimensions 292 2 110 2 212 2 115 8 2 10 6 External Dimensions...
Page 335: ...315 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 APP Appendices...
Page 362: ...INDEX 6 Index...
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