Amprobe ACDC-620T Clamp-On-Multimeter Uživatelský manuál stáhnout pdf (Strana 54)

TRUERMSMEASUREMENT

The meter measures the TRUERMS value of AC voltages and currents. In physical

terms, the RMS (Root-Mean-Square) value of a waveform is the equivalent DC val-

ue that causes the same amount of heat to be dissipated in a resistor. TRUE RMS

measurement greatly simplifies the analysis of complex AC signals. Since the RMS

value is the DC equivalent of the original waveform, it provides a reliable basis for

comparing dissimilar waveforms.

By contrast, many meters use average-responding AC

converters rather than TRUE RMS converters. The scale

factor in these meters are adjusted so that they display the

RMS value for a harmonic-free sine wave. If a signal is not

sinusoidal, average-responding meters do not display

correct RMS readings.

For a free video on Amprobe's Harmonalyzer, HA-2000

harmonic/waveform analyzer, please contact Amprobe

directly.

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Amprobe ACDC-620T Clamp-On-Multimeter Uživatelský manuál Strana 54