Manual

Three-Phase Power Quality Analyzer PowerPad
™
Model 3945 (pdf) Rev. 04 05/05
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Specifications
MODEL 3945
ELECTRICAL
Sampling Frequency 256 samples per cycle
Data Storage 4MB partitioned for waveforms, transients, alarms and trend recording
Voltage (TRMS) Phase-to-Phase: 830V Phase-to-Neutral: 480V
Current (TRMS) MN Clamp: 0 to 6A/120A or 0 to 240A SR Clamp: 0 to 1200A
MR Clamp: 0 to 1200AAC, 0 to 1400ADC AmpFlex
™
: 0 to 6500A
1
MEASUREMENT RANGE RESOLUTION ACCURACY
Single-Phase RMS Voltages 6 to 480V 0.1V ±0.5% ± 2cts
Phase-to-Phase RMS Voltages 10 to 830V 0.1V ±0.5% ± 2cts
Single-Phase Peak Voltages 6 to 680V 1V ±(1% + 5cts)
Phase-to-Phase Peak Voltages 10 to 1360V 1V ±(1% + 5cts)
Frequency (Hz) 40 to 69Hz 0.01Hz ±0.01Hz
DC Voltage Component 6 to 650V 0.1V ±1% ± 2cts
Current Probes (Arms)
MN Clamp 0 to 240A 0.1A ± (0.5% + 2cts)
SR Clamp 0 to 1200A 0.1A; 1A ≥ 1000A ± (0.5% + 2cts)
AmpFlex
™
Probe 10 to 6500A 0.1A; 1A ≥ 1000A ± (0.5% + 1A)
Active (Real) Power (kW) 0 to 9999kW 4 digits (10,000ct) ±1% ± 1ct @ PF ≥0.8
Reactive Power (kVAR) 0 to 9999kVAR 4 digits (10,000ct) ± 1% ± 1ct @ PF ≤0.8
Apparent Power (kVA) 0 to 9999kVA 4 digits (10,000ct) ±1% ± 1ct
Power Factor (PF & DPF) -1.000 to 1.000 0.001 ±(1.5% + 0.01)
Active Energy (kWh) 0 to 9999MWh 4 digits (10,000ct) ±1% ± 1ct @ PF ≥0.8
Reactive Energy (kVARh) 0 to 9999MVARh 4 digits (10,000ct) ±1% ± 1ct @ PF ≤0.8
Apparent Energy (kVAh) 0 to 9999MVAh 4 digits (10,000ct) ± 1% ± 1ct
Unbalance (V & A) 0 to 100% 0.1% ±1% ± 1ct
Phase Angle (V–A, A–A, V–V)) -179° to +180° 1° ±2° ± 1ct
Harmonics (1
st
to 50
th
)
F = 40 to 69Hz 0 to 999% 0.1% ±1% + 5cts
(V ≥ 50V, A > I nom/100)
Total Harmonic Distortion (V & A) 0 to 999% 0.1% ±1% + 5cts
K-factor (Akf) 1 to 99.99 0.01 ±5% ± 1ct
Flicker (PST) 0.00 to 9.99 0.01 –
Power Source 9.6V NiMH rechargeable battery pack
AC supply: 110/230V
AC ±20% (50/60Hz)
Battery Life 6 hrs with display on; ≤96 hrs with display off (record mode)
ENVIRONMENTAL
Operating Temperature 32° to 122°F (0° to 50°C)
Storage Temperature -4° to +122°F (-20° to +50°C)
MECHANICAL
Display 1/4 VGA (320 x 240) color LCD
Dimensions 9.5 x 7 x 2" (240 x 180 x 55mm)
Weight 4.6 lbs (2.1kg)
SAFETY
Safety Rating EN 61010-1, 600V Cat. III, Pollution Degree 2
Double Insulation Yes
CE Mark Yes
1
Crest Factor at 6500A = 1