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4-9 AC Detection Method
This meter employs the root-mean-square value method and
indicates the magnitude of AC as the same amount of work as DC.
Root-mean-square values of sinusoidal waves and such non-
sinusoidal waves as square waves and chopping waves can be
measured by the true RMS (Root Mean Square) circuit.
4-10 Crest Factor
The CR (crest factor) indicates the peak value of a signal by dividing
it by its root-mean-square value. With most common waveforms
such as sinusoidal wave and chopping wave, the crest factor is
relatively low. With waveforms similar to low duty cycle pulse trains,
the crest factor is high. For the voltages and crest factors for typical
waveforms, see the table below.
Please measure the crest factor by 3 or less.
Voltages of Various Waveforms
• This meter employs AC coupling for AC measurement.
The DC components in input signals are cut.
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