Amprobe ACD-330T Clamp-On-Multimeter Manual de usuario descargar pdf (Pagina 22)

1 ms PEAK HOLD

You can use this Meter to analyze components such as power distribution transformers

and power factor correction capacitors. The additional features allow the measurement of

the half-cycle peak current by using the 1 ms peak hold feature. This allows the determi-

nation of the crest factor:

Crest factor= Peak value/True rms value

1) Press PEAK button for more than 1 second to toggle I ms peak hold mode ON/OFF.

2) Press PEAK button momentarily to select PEAK+ measurement after entering the

peak mode. The display shows "DH MAX" to indicate the PEAK +. See Figure 14.

3) If the reading is " OL", then you can push RANGE button momentarily to change

measuring range and restart the PEAK+ measurement after setting the peak mode.

4) Press .))) button to re-set the 1 ms peak hold again after setting peak mode.

Note: A crest factor of 1.4 indicates a sinusoidal waveform.

Figure 14. 1 ms Peak Hold Display

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Amprobe ACD-330T Clamp-On-Multimeter Manual de usuario Pagina 22