Amprobe ACDC-620T Clamp-On-Multimeter - Manual (Page 28)

c 1ms Peak Hold
You can use this Meter to analyze components such as power distribution trans-
formers and power factor correction capacitors. The additional features allow the
measurement of the half-cycle peak current by using the I ms peak hold feature.
This allows the determination of the crest factor:
Crest factor = Peak value/True rms value
1 ) Press PEAK button for more than 1 second to toggle 1 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 16.
27
Figure 14. Continuity Operation
I III I IIII l 4 I III I IIII l 4
Ω Ω