― 10 ―
③
Take the reading on the display.
NOTE
●
During current measurement, keep the transformer jaws fully
closed. Otherwise, accurate measurement cannot be made. The
maximum measurable conductor size is 54.5mm in diameter.
●
When measuring a larger current, the transformer jaws may buzz.
This is not a fault and does not affect the accuracy at all.
６−１−２ Peak Current Measurement
①
Set the function selector switch to the "
〜
400A" or "
〜
2000A" position.
②
Press the mode button to select the peak mode. "PEAK" will be
shown on the display.
③
Press the trigger to open the transformer jaws and clamp them onto
the conductor under test. Then, press the reset button.
④
The display shows the current's crest value divided by the square
root of two. Therefore, when the current is sinusoidal, the reading
equals RMS value.
⑤
To reset the display, press the reset button.
（
Note: When this is done, the reading goes off for about one second.
）
⑥
After the measurement is over, press the mode button to return to
the normal mode.
NOTE
In the peak measurement mode, the data hold feature is disabled.
Ｖｐ
INPUT Current
Ｖｐ／
2
Peak Hold
