7. Operation
7-1. AC current measurements
①
Press “POWER” switch, the
power is turned ON.
②
Press “DOWN” key switch and
move the cursor to “Current”
positio
n and press “ENT” key.
The tester is set to AC current
measurement mode as the
drawing.
③
Connect the plug of measuring CT to the “INPUT” terminal.
④
Measurement of load current
(Max. AC 20A rms)
Clamp the conductor of the circuit
under test. Read the displayed value.
If the measured current is over range,
“OVER” is displayed.
If you made measurements in a dark
place or in a place where it is difficult to
see the readings, use “DATA HOLD”
switch.
Note
: Clamp only one conductor of the
circuit to be measured.
⑤
Measurement of leakage current
a. Measurement of grounding line
Clamp the grounding line and read the displayed value.
b. Measurement of single-phase or three phase electric circuit
To measure a leakage current in a single-phase or three phase circuit,
clamp the all active conductors (e.g. L1, N or L1, L2, L3, N). Read the
displayed value.
If you make measurements in a dark place or in a place where it is difficult to
see the readings, use “DATA HOLD” switch.
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