Amprobe ACD-16-PRO Clamp-Meters - Manual (Page 14)

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True RMS Models ACD-16TRMS & ACD-40PQ ACV & ACA clamp-on accuracies are
specified from 5% to 100% of range or otherwise specified. Maximum Crest Factor are as
specified below, and with frequency spectrums, besides fundamentals, fall within the meter
specified AC bandwidth for non-sinusoidal waveforms. Fundamentals are specified at 50Hz
and 60Hz.
AC Voltage
RANGE Accuracy
50Hz / 60Hz
600.0V
1.0% + 5d
45Hz ~ 500Hz
600.0V
1.5% + 5d
500Hz ~ 3.1kHz (model 132 & 135 only)
600.0V
2.5% + 5d
CMRR : >60dB @ DC to 60Hz, Rs=1k Ω
Input Impedance: 2M Ω, 30pF nominal
True RMS models Crest Factor:
< 2.3 : 1 at full scale & < 4.6 : 1 at half scale
DC Voltage
RANGE
Accuracy
600.0V 0.5% + 5d
NMRR : >50dB @ 50/60Hz
CMRR : >120dB @ DC, 50/60Hz, Rs=1k
Ω
Input Impedance: 2M Ω, 30pF nominal
THD%-R
1) (model 135 only)
RANGE Harmonic order Accuracy 2)
Fundamental 1.5% of Reading + 6d
2nd ~ 3rd 5.0% of Reading + 6d
4th ~ 10th 2.5% of Reading + 6d
0.0% ~99.9%
11th ~ 51st 2.0% of Reading + 6d
1) THD-R is defined as: (Total Harmonic RMS / Total RMS) x 100%
2) Specified accuracy @ ACA fundamental > 5A ; ACV fundamental > 50V
Ohms
RANGE Accuracy
999.9 Ω 1.0% + 6d
Open Circuit Voltage : 0.4VDC typical