KYORITSU 4202 - Manual (Page 13)

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7-1 Normal measurement of current
* Press the Function button and select the ACA function.
* Confirm the displayed unit is " mA ", and the " MEM " is not displayed at the
upper left on the LCD.
* Press the trigger to open the Transformer jaws, and close them over one
conductor only.
* Measured current value is displayed on the LCD.
(Earth leakage current that flows through an earthed wire can be measured by
this method.)
7-2 Measurement of balance leakage current
* Press the Function button and select the ACA function.
* Confirm the displayed unit is " mA ", and the " MEM " is not displayed at the
upper left on the LCD.
* Clamp onto all conductors except for the earthed wire.
* Measured current value is displayed on the LCD.
Load Load
Single-phase 2-wire system
In 3-wire system with neutral,
clamp onto all 3 wires.
Three-phase 3-wire system
In 4-wire system with neutral,
clamp onto all 4 wires.