7-3. Measurement by TERMINALS Out mode
This TERMIANL Out mode means the measurement for earth resistance by
using output from the terminal of instrument body.
①
Make power off of the circuit and disconnect the terminal of grounding line.
②
Connect the lead wires as above drawing.
③
Press
“POWER” switch once.
④
Set cursor at
“Earth Res.” on the display.
⑤
Press
“ENT” switch and set the cursor at “TERMINALS Out” on the display.
⑥
Press
“ENT” switch once. “Measuring” sign appears on the display and
measurement starts.
⑦
After approx. 30 seconds, the measurement value is shown on the display.
* To get back the initial display from the measuring condition, press “MENU”
switch once.
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CAUTION
●
Locate the direction of red & black lead wires from the output terminals and the
Detection CT (CT SENSOR) as above drawing. In case of different direction
between lead wires and CT, the display will show “OVER” or wrong value.
●
At the time of disconnecting the terminals of grounding line, make power off the
circuit.
●
Lead wires are optional accessories. If you make them yourself, use wires with
φ
2mm and make the length less than 1m.
