AEMC powerpad 3945, User Manual

Page: 15 / 89

14
Power Quality Analyzer Model 3945
3.2.3 Accuracy Specifi cations
(excluding current probes)
Function Range
Display
Resolution
Accuracy
Frequency 40 to 69Hz 0.01Hz ±0.01Hz
Single phase RMS voltages
(Vrms, Vdem)
6V to 480V 0.1V ±0.5% ± 2cts
Phase-to-phase RMS voltages
(Urms, Udem)
10V to 830V 0.1V ±0.5% ± 2cts
DC voltage component 6V to 100V 0.1V ±1% ± 2cts
Single phase peak voltages
(Vpp, Vpm)
6V to 680V 0.1V ±1% ± 5cts
Phase-to-phase peak voltages
(Upp, Upm)
10V to 1360V
0.1 V if I < 1000 V
1 V if I
≥
1000 V
±1% ± 5cts
Current probe (Arms, Adem) Inom/1000 to 1.2 Inom
0.1 A if I < 1000 A
1 A if I
≥
1000 A
±0.5% ± 2cts
AmpFlex™ (Arms, Adem) 10A to 6500A
0.1 A if I < 1000 A
1 A if I
≥
1000 A
±0.5% ± 1A
DC current (MR193) 1A to 1200A
0.1 A if I < 1000 A
1 A if I
≥
1000 A
±(1% + 1A)
Peak Current (App, Apm) 0 to 1.7 x Inom
0.1 A if I < 1000 A
1 A if I
≥
1000 A
±(1% + 1A)
Peak Current (AmpFlex™) 10 to 9190A
0.1 A if I < 1000 A
1 A if I
≥
1000 A
±(1% + 1A)
Crest Factor (Vcf, Ucf, Acf) 1.00 to 9.99 0.01 ±1% ± 2cts
Real Power (W)
Clamp-on and AmpFlex ™
Clamp-on
AmpFlex
™
0W to 9999kW
Cos
ϕ ≥
0.8
Cos
ϕ
0.2 to < 0.8
Cos
ϕ
0.5 to < 0.8
4 digits
(10000cts) ±1% ± 1ct
±1.5% ± 10cts
±1.5% ± 10cts
Reactive Power (VAR)
Clamp-on and AmpFlex ™
Clamp-on
AmpFlex
™
0W to 9999kW
Sin
ϕ ≥
0.5
Cos
ϕ
0.2 to < 0.8
Cos
ϕ
0.5 to < 0.8
4 digits
(10000cts) ±1% ± 1ct
±1.5% ± 10cts
±1.5% ± 10cts
Apparent Power (VA) 0VA to 9999kVA 4 digits ±1% ± 1ct
Power Factor (PF, DPF) -1.000 to 1.000
Cos
ϕ ≥
0.5
Cos
ϕ
0.2 to < 0.5
0.001
±1.5% ± 1ct
±1.5% ± 1ct
Tangent (Tan) for VA
≥
50VA
-32.76 to 32.76
0.001 Tan
ϕ
< 10
0.01 Tan
ϕ
< 10
±1° on
ϕ
±1° on
ϕ
Active Energy (Wh)
Clamp-on and AmpFlex ™
Clamp-on
AmpFlex
™
0Wh to 9999MWh
Cos
ϕ ≥
0.8
Cos
ϕ
0.2 to < 0.8
Cos
ϕ
0.5 to < 0.8
4 digits
(10000cts) ±1% ± 1ct
±1.5% ± 1ct
±1.5% ± 1ct
Reactive Energy (VARh)
Clamp-on
0VARh to 9999MVARh
Sin
Φ ≥
0.5
Cos
Φ
0.2 to < 0.5
4 digits
±1.5% ± 1ct
±2.5% ± 1ct
Reactive Energy (VARh)
AmpFlex ™
0VARh to 9999MVARh
Sin
ϕ ≥
0.5
Cos
ϕ
0.2 to < 0.5
4 digits
±1.5% ± 1ct
±2.5% ± 1ct
Apparent Energy (Vah) 0VAh to 9999MVAh 4 digits ±1% ± 1ct