Amprobe ACD-45PQ Power-Quality-Clamp - Manual (Page 27)

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2. Add 4d to specified accuracy for 3-Phase Balanced-Load Power
measurements.
3. Add 1% to specified accuracy @ ACA fundamental < 6A or ACV
fundamental < 90V. Accuracy is not specified @ ACA fundamental < 1A
or ACV fundamental < 30V
4. Add 1% to specified accuracy @ ACA fundamental < 6A or ACV
fundamental < 90V. Accuracy is not specified @ ACA fundamental < 2A
or ACV fundamental < 50V
5. 0 ~ 360.0
Total Power Factor (PF)
Range Accuracy 1)
0.10 ~ 0.99
F ~ 21st 22nd ~ 51st
3d 5d
1) Specified accuracy @ ACA fundamental > 2A ; ACV fundamental > 50V
A-lags-V Indication:
LCD annunciator “A-lags-V” turns on to indicate an inductive circuit, or
Current A lags Voltage V (i.e., phase-shift angleθ is “+”).
A-lags-V Indication is specified at 50/60Hz fundamental without the presence
of harmonics, and at ACV > 90V, ACA > 9A and PF < 0.95
kWHr (kilo-Watt-Hour Energy)
Time base accuracy: < 30ppm
Non-volatile memory: Separately stores one 3-Phase-Balanced-Load and one
Single-Phase result
3-Phase Unbalanced-Load Power
This 3-Phase Unbalanced-Load Power measurement is achieved thru the
calculation of discrete single-phase measurements that are taken one at a time
manually. Since it is not real-time on all 3 phases simultaneously, it is intended
only for stable power conditions without significant power fluctuations over
the time of measurements. Result accuracy is hence the accumulated accuracy
of the discrete single-phase measurements plus the associated fluctuations.