(1) Measurement of Line Current
Conductor to be
measured
①
Connect ZCT to CT INPUT of the instrument
like as the drawing.
②
Press POWER SWITCH
⑤
on. Once all display
will be lightened and then, the voltage display
will appear.
③
Once press CURRENT RANGE SWITCH
⑦
and
then, the display become for current.
④
Set FREQUENCY CHANGE SWITCH
⑫
to power
supply frequency of the conductor to be measured.
⑤
Open ZCT and Clamp it to the conductor to be
measured and then close ZCT.
⑥
Read the display value. To memorize the displayed
value, press D
･
HOLD switch
⑩
to get Data Hold
mode. Then, press ENT switch
⑪
and the data
will be memorized. Not to make memorization,
press D-HOLD Switch once again to release the
data hold function. (In case of over range,
｢
OL
｣
mark will be displayed).
Note :
・
The instrument has auto power off function and the power will get off approx. 10
minutes after the final switch operation.
・
At Ior measurement mode, line current cannot be measured.
(2) Measurement of Leakage Current
①
Measurement of Leakage Current of Grounding Line
The operations are the same as for line current measurement.
②
Measurement of Leakage Current except of Grounding Line
The operations are the same but clamp CT to 2 wires at the same time in case of
single phase / 2 wires and clamp 3 wires or 4 wires at 3 phase / 3 wires or 4 wires.
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