Amprobe DM-II-PLUS Power-Quality-Recorder - Manual (Page 22)

20
Voltage Measurement (Auto ranging)
Range Accuracy Resolution Input Impedance
15 – 310V
±(0.5%+2digit)
0.2V 300kΩ(phase-neutral)
600kΩ (phase-phase)
310 – 600V 0.4V
Voltage Anomalies Detection (Manual Selection of Range)
Voltage
Range Accuracy Resolution Input Impedance
15 – 310V
±(0.5%+2digit)
0.2V 300kΩ (phase-neutral)
600kΩ (phase-phase)
310 – 600 0.4V
Time
Accuracy (ref. to 60Hz) Resolution
±8.33ms (½ period of fundamental) 8.33ms (½ period of fundamental)
Current measurement (DM-II Plus only)
Range Accuracy Resolution Input Impedance
Protection against
overloads
0.005-0.26V
±(0.5%+2digit)
0.0001V
100kΩ 5V
0.26-1V 0.0004V
Current measurement (Using DM-Ct-HtA)
Range Accuracy Resolution Protection against overloads
5 to 1000 A ±(1.5% of range) 0.1 A 600 V
Minimal Current measurable is equal to 1.5% of Clamp Full Scale
Current measurement (Using ACf-3000 SR)
Range Accuracy Resolution Protection against overloads
15 to 3000 A ±(1.5% of range) 0.1 A 600 V
Minimal Current measurable is equal to 1.5% of Clamp Full Scale