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15.2 Calibration
Verifying of Functions
15-12
Auto Range Operation
1.
Set the voltage or current range of this instrument to Auto range. When the
voltage or current input is zero, the voltage and current ranges are automatically
set to 15 V range and 0.5 A range (5 mA range on the WT210), respectively.
Set the crest factor to 3.
2.
Press the VOLTAGE key to verify the 15 V range and then press this key once
more.
3.
Press the CURRENT key and check that that the range is set to 0.5 A (5 mA on
the WT210). Then, press the CURRENT key again.
4.
Connect the output terminal of the voltage standard (either AC or DC) to the
voltage input terminal of this instrument, and connect the current standard to the
current input terminal.
5.
Set the output voltage of the voltage standard to 600 V and output this voltage.
6.
Verify that the measured voltage on the WT210/WT230 shows bars (- - - -) and
changes to 600 V few seconds later.
7.
Turn the output of the voltage standard OFF.
8.
Set the output current of the current standard to 20 A and output this current.
9.
Verify that the measured current on the WT210/WT230 shows bars (- - - -) and
changes to 20 A few seconds later.
10.
Turn the output of the current standard OFF.
IM 760401-01E
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