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Zero Adjustment and Degaussing (Demagnetization)
2.7 Zero Adjustment and Degaussing
(Demagnetization)
Before connecting the instrument, perform zero adjustment while no voltage or current is inputted.
Zero adjustment is performed for all ranges and for all input channels at the same time. In addition,
if a current sensor that can measure both AC and DC currents is connected to the instrument, the
current sensor will be degaussed (demagnetization, DMAG) at the same time.
1
Allow the instrument to warm up for 30 minutes or more while it has been turned on.
2
Connect the current sensors and the voltage cords to the instrument.
Adjustment of measured current values must include the current sensors.
3
When zero adjustment can be performed on the current sensor connected to the instrument,
perform zero adjustment on the current sensor side.
Some current sensors may have an element, such as a knob, to perform zero adjustment.
4
Set wiring modes and congure current sensor settings.
5
Press the MEAS key.
If Ch. 1 through Ch. 8 are lit up, zero adjustment will be performed for voltage and current.
If the [A-D] and [E-H] channel indicators are lit up, zero adjustment will be performed for the motor input
channels.
6
Press 0ADJ.
7
When the conrmation dialog box appears, tap [Yes].
The screen will display [Performing zero adjustment...] and the process will be completed in about 30 s.
8
Connecting the sensor and leads to the lines to be measured.
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