Current Inputs; Accuracy Specifications (Excluding Current Probes) - AEMC PowerPad 3945-B User Manual

3.2.2

Current Inputs

Operating Range: 0 to 1V
Input Impedance: 100kΩ for current probe circuit and 12.4kΩ for AmpFlex
Overload: 1.7V
3.2.3 Accuracy Specifications
Function
Frequency
Single phase RMS voltages
(Vrms, Vdem)
Phase-to-phase RMS voltages
(Urms, Udem)
DC voltage component
Single phase peak voltages
(Vpp, Vpm)
Phase-to-phase peak voltages
(Upp, Upm)
Current probe (Arms, Adem)
*
AmpFlex & MiniFlex
® ®
DC current (MR193)
Peak Current (App, Apm)
Peak Current (AmpFlex
Crest Factor (Vcf, Ucf, Acf)
Real Power (W)
Clamp-on and AmpFlex
Clamp-on
AmpFlex & MiniFlex
®
Reactive Power (VAR)
Clamp-on and AmpFlex
Clamp-on
AmpFlex & MiniFlex
®
Apparent Power (VA)
Power Factor (PF, DPF)
Tangent (Tan) for VA ≥ 50VA
Active Energy (Wh)
Clamp-on and AmpFlex
Clamp-on
AmpFlex & MiniFlex
®
Reactive Energy (VARh)
Clamp-on
Reactive Energy (VARh)
AmpFlex & MiniFlex
®
18
15V to 1360V
Inom/1000 to 1.2 Inom
10A to 6500A
(Arms, Adem)
0 to 1.7 x Inom
*
& MiniFlex )
® ®
0W to 9999kW
®
Cos ϕ 0.2 to < 0.8
*
Cos ϕ 0.5 to < 0.8
®
0W to 9999kW
®
Cos ϕ 0.2 to < 0.8
*
Cos ϕ 0.5 to < 0.8
®
0VA to 9999kVA
-1.000 to 1.000
Cos ϕ 0.2 to < 0.5
-32.76 to 32.76
0Wh to 9999MWh
®
Cos ϕ 0.2 to < 0.8
*
ϕ 0.5 to < 0.8
®
0VARh to 9999MVARh
Sin Φ 0.2 to < 0.5
0VARh to 9999MVARh
*
®
Sin ϕ 0.2 to < 0.5
(excluding current probes)
Range Display Resolution
40 to 69Hz
15V to 480V
15V to 960V
15V to 680V
15V to 680V
0.1 V if I < 1000 V
0.1 A if I < 1000 A
0.1 A if I < 1000 A
0.1 A if I < 1000 A
1A to 1400A
0.1 A if I < 1000 A
0.1 A if I < 1000 A
10 to 9190A
1.00 to 9.99
Cos ϕ ≥ 0.8
Sin ϕ ≥ 0.5
Cos ϕ ≥ 0.5
0.001 Tan ϕ < 10
Cos ϕ ≥ 0.8
Cos
Sin Φ ≥ 0.5
Sin ϕ ≥ 0.5
Power Quality Analyzer Model 3945-B
0.01Hz
0.1V
0.1V
0.1V
0.1V
1 V if I ≥ 1000 V
1 A if I ≥ 1000 A
1 A if I ≥ 1000 A
1 A if I ≥ 1000 A
1 A if I ≥ 1000 A
1 A if I ≥ 1000 A
0.01
4 digits
(10000cts)
4 digits
(10000cts)
4 digits
0.001
0.01 Tan ϕ < 10
4 digits
(10000cts)
4 digits
4 digits
circuit
®
Accuracy
±0.01Hz
±0.5% ± 2cts
±0.5% ± 2cts
±1% ± 5cts
±1% ± 5cts
±1% ± 5cts
±0.5% ± 2cts
±0.5% ± 1A
±(1% + 1A)
±(1% + 1A)
±(1% + 1A)
±1% ± 2cts
±1% ± 1ct
±1.5% ± 10cts
±1.5% ± 10cts
±1% ± 1ct
±1.5% ± 10cts
±1.5% ± 10cts
±1% ± 1ct
±1.5% ± 1ct
±1.5% ± 1ct
±1° on ϕ
±1° on ϕ
±1% ± 1ct
±1.5% ± 1ct
±1.5% ± 1ct
±1.5% ± 1ct
±2.5% ± 1ct
±1.5% ± 1ct
±2.5% ± 1ct