Amprobe ACDC-620T Clamp-On-Multimeter Manual de usuario descargar pdf (Pagina 55)

WAVEFORMCOMPARISON

Ta b l e3. Illustrates the relationship between AC and DC components for common

waveforms, and compares readings for TRUE RMS meters and average-responding

meters. For example, consider the first waveform, a 1414V (zero-to-peak) sine wave.

Both this Clamp-on meter and RMS-calibrated average-responding meters display

the correct RMS reading of100.0V (the DC component equals 0). However, consider

the 200V (peak-to-peak) square wave, both types of meter correctly measure the DC

component (oV). The clamp meter correctly measures the AC component (100.0V).

The average-responding meter measures 111.1V, which amounts to an 11% error.

The conversion factors in Table 3 show the differences between average sensing

instruments and true RMS instrument measurements.

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 64 65

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Amprobe ACDC-620T Clamp-On-Multimeter Manual de usuario Pagina 55