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Features

  • True-RMS single-, two- and three-phase measurements at 256 samples/cycle, plus DC
  • Real-time color waveforms
  • Easy-to-use on-screen setup
  • True-RMS voltage and current measurements
  • Measures DC volts, amps and power
  • Display and capture voltage, current and harmonics to the 50th order, including direction in real time
  • Phase diagram display
  • VA, VAR and W per phase and total
  • KVAh, VARh and kWh
  • Neutral current display for three-phase
  • Transformer K-factor display
  • Power factor displacement PF display
  • Captures up to 50 transients
  • Short-term flicker display
  • Phase unbalance (current and voltage)
  • Harmonic distortion (total and individual)

The AEMC PowerPad Model 3945-B power quality analyzer allows you to look inside your electrical system and see what is going on. Troubleshooting is so much easier because you can see the volts, amps and harmonic content in real-time and take pictures to document and analyze. The full color graphical display lets you see and analyze each signal clearly.

With a high speed sample rate, at 256 samples per cycle, the AEMC PowerPad Model 3945-B power quality analyzer provides excellent fidelity in reproducing waveforms and capturing transients that happen as fast as 62.5 µs. The PowerPad's 4MB of memory is conveniently positioned to let you store four different types of data, synchronized or independent of each other. You can store up to 12 screen snapshots, up to 50 captured transients that contain four cycles for each active input and 4096 alarm events. You can also record trend data for days, weeks or even months.

Six direct access function buttons on the AEMC PowerPad Model 3945-B power quality analyzer quickly let you see waveforms, harmonics, transients, alarm events, record and power & energy. Other functions and features of the PowerPad Model 3945-B include current probes that auto configure the instrument's current channel for range and scale and an online help system that gives you clear information about the functions and buttons for each screen.

The AEMC PowerPad Model 3945-B power quality analyzer ships complete with:

  • 3 color-coded current probes
  • 4 color-coded 10-foot voltage leads
  • 4 color-coded alligator clips
  • RS-232 DB9F optically coupled serial cable
  • NiMH battery
  • US 120 V power cord
  • DataView software
  • Carrying bag
  • Soft carrying pouch
  • User manual

AEMC PowerPad Model 3945-B Power Quality Analyzer Specifications

Electrical
Sampling Frequency 256 samples per cycle
Data Storage 4 MB partitioned for waveforms, transients, alarms and trend recording
Voltage (TRMS) Phase-to-Phase: 960 V
Phase-to-Neutral: 480 V
Measurement
Range Resolution Accuracy
Single-Phase RMS Voltages 15 to 480 V 0.1 V ±0.5% ± 2cts
Phase-to-Phase RMS Voltages 15 to 960 V 0.1 V ±0.5% ± 2cts
DC Voltage Component 15 to 680 V 0.1 V ±1% ± 2cts
Single-Phase Peak Voltages 15 to 680 V 1 V ±(1% ± 5cts)
Phase-to-Phase Peak Voltages 15 to 1360 V 1 V ±(1% ± 5cts)
Frequency (Hz) 40 to 69 Hz 0.01 Hz ±0.01 Hz
Current Probes (Arms)
MN Clamp
SR Clamp
AmpFlex Probe

0 to 240 A
0 to 1200 A
10 to 6500 A

0.1 A
0.1; 1 A ≥ 1000 A
0.1 A; 1 A ≥ 1000 A

±(0.5% + 2cts)
±(0.5% + 2cts)
±(0.5% + 1A)
Active (Real) Power (kW) 0 to 9999 kW 4 digits (10,000ct) ±1% ± 1ct @ PF ≥ 0.8
Reactive Power (kVAR) 0 to 9999 kVAR 4 digits (10,000ct) ±1% ± 1ct @ PF ≤ 0.8
Apparent Power (kVA) 0 to 9999 kVA 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 9999 MWh 4 digits (10,000ct) ±1% ± 1ct @ PF ≥ 0.8
Reactive Energy (kVARh) 0 to 9999 MVARh 4 digits (10,000ct) ±1% ± 1ct @ PF ≤ 0.8
Reactive Energy (kVARh) 0 to 9999 MVARh 4 digits (10,000ct) ±1% ± 1ct @ PF ≤ 0.8
Apparent Energy (kVAh) 0 to 9999 MVAh 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° ±2° ± 1ct
Harmonics (1st to 50th)
F = 40 to 69 Hz (V³ 50 V, A > nom/100)
0 to 999% 0.1% ±1% + 5cts
Total Harmonic Distribution (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: 110/230 VAC ±20% (50/60Hz)
Battery Life ≥8 hrs with display on; ≤35 hrs with display off (record mode)

Sensors/Probes

AEMC MiniFlex Sensor
MiniFlex Sensor Model MA193-10-BK for use with PowerPad and PEL Series, 10"
$219.00

Accessories

Please consider these optional accessories.

AEMC 5000.60 Replacement Adapter
Replacement Adapter, RS-232 to USB 2.0 (for use with Models 3945-B, 1060, 5060, 5070 & 6250)
$36.95