Amprobe ACD-40PQ Manuel de l'utilisateur - 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
50Hz / 60Hz
600.0V
45Hz ~ 500Hz
600.0V
500Hz ~ 3.1kHz (model 132 & 135 only)
600.0V
CMRR : >60dB @ DC to 60Hz, Rs=1kΩ
Input Impedance: 2MΩ, 30pF nominal
True RMS models Crest Factor:
< 2.3 : 1 at full scale & < 4.6 : 1 at half scale
DC Voltage
RANGE
600.0V
NMRR : >50dB @ 50/60Hz
CMRR : >120dB @ DC, 50/60Hz, Rs=1kΩ
Input Impedance: 2MΩ, 30pF nominal
THD%-R
(model 135 only)
1)
RANGE
0.0% ~99.9%
THD-R is defined as: (Total Harmonic RMS / Total RMS) x 100%
1)
Specified accuracy @ ACA fundamental > 5A ; ACV fundamental > 50V
2)
Ohms
RANGE
999.9Ω
Open Circuit Voltage : 0.4VDC typical
1.800.561.8187
Harmonic order
Fundamental
2nd ~ 3rd
4th ~ 10th
11th ~ 51st
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Accuracy
1.0% + 5d
1.5% + 5d
2.5% + 5d
Accuracy
0.5% + 5d
Accuracy
1.5% of Reading + 6d
5.0% of Reading + 6d
2.5% of Reading + 6d
2.0% of Reading + 6d
Accuracy
1.0% + 6d
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