Specifications; Electrical Specifications - AEMC 721 User Manual

3.1

Electrical Specifications

Reference Conditions: Accuracies are provided under the following reference conditions:
Temperature 23°C ± 5K, 45% to 75% RH; battery voltage 8.5V to 9V; conductor centered in
the probe jaws; DC magnetic field: earth's field; no external AC magnetic field; no external
electrical field; sine wave 45 to 65 Hz. In Peak, basic accuracy is based on 1 ms samples and
on a signal from 10 to 500 Hz. In THD and DF, the basic accuracy is provided for a square
wave and a triangular wave with 50% duty cycle at 50 or 60 Hz. R refers to Reading and ct(s)
to count(s). Counts may also be referred to as the least significant digits (LSD).
CURRENT (TRMS)
Input Range: 0.05 to 700.0 Arms (±999.9 A Peak)
Basic Accuracy: 0.3 to 99.99 A: 2% R ± 20 cts
Crest Factor: >3.0 below 300 A
Frequency Range: 15 Hz to 10 kHz
CURRENT (PEAK)
Input Range: 0.05 to ± 999.9 A Peak
Basic Accuracy: 0.05 to 99.99 A: 3% R ± 30 cts
VOLTAGE (TRMS)
Input Range:
0.05 to 600 Vrms (± 1200 V Peak)
Basic Accuracy: 0.3 to 400.0 V: 1.5% R ± 4 cts
Crest Factor: >4.0 below 300 V
Input Impedance: 1 MΩ, 47 pF
Frequency Range: 15 Hz to 10 kHz
10
C
HAPTER
S
PECIFICATIONS
100.0 to 400.0 A: 2% R
400.0 to 700.0 A: 5% R
100 to 600 A: 3% R
600 to 999.9 A: 8% R
400.0 to 999.9 V: 1.5% R
3
Harmonic Meter Model 721