Current post: Selling AEMC 3945-B – We Buy New Used 3945-B (‘s) Top Dollar Paid!

Selling AEMC 3945-B – We Buy New Used 3945-B (‘s) Top Dollar Paid!

If you’re looking to Sell AEMC 3945-B PowerPad 3Phase Power Quality Analyzer

AEMC 3945-B Three-Phase Power Quality Analyzer
Wouldn’t it be nice if you could look inside your electrical system and see what’s going on? Troubleshooting would be so much easier if you could see the volts, amps and harmonic content in real time and take pictures to document and analyze. Now you can do just that and more with AEMC’s PowerPad. The full color graphical display lets you see and analyze each signal clearly. Its high speed sample rate, at 256 samples per cycle, provides excellent fidelity in reproducing waveforms and capturing transients that happen as fast as 62.5µs.

PowerPad’s 4MB of memory is conveniently partitioned 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 quickly let you see:
Display Volts, Amps, THD and Crest Factor by phase or for all phases. You can display all the voltage inputs on one screen, phase-to-phase or phase-to-neutral. Real-time phasor diagrams can be displayed for volts and amps, also by phase or for all phases
Display Harmonics out to the 50th for Volts, Amps and VA. Individual Harmonics are displayed as a percentage and in real value. Harmonic direction and sequencing can also be displayed.
Set, capture and display transients. You select the threshold and the number of transients to capture. PowerPad then captures four waveforms for each transient; the triggering waveform as well as one pre- and two post-triggered waveforms. As many as 1200 waveforms can be captured.
Configure, capture and display up to 4096 alarm events based on up to ten different trigger variables. Each captured alarm event will show the phase, the variable and the value as well as the time and duration.
Set up and record trend data at selectable rates from one sample/second to one sample every 15 minutes on as many as 22 different variables for all phases. See the recorded data on screen, zoom in and out and scroll the time axis to analyze the data.
Power & Energy
Display Watts, VARs and VA by phase and total. Accumulate totals and see whether the energy is inductive or capacitive.

If you’re not convinced yet, consider these other functions and features:
PowerPad uses current probes that auto configure the instrument’s current channel for range and scale.
PowerPad comes with an online help system that gives you clear information about the functions and buttons for each screen.
PowerPad speaks six different languages. At the press of a button, information can be displayed in English, Spanish, French, Portuguese, Italian and German.

Buying, Selling, Trading AEMC 3945-B

True RMS single-, two- and three-phase measurements at 256 samples/cycle, plus DC
Real-time color waveforms
Easy-to-use on-screen setup
Automatic current probe recognition and scaling
True RMS voltage and current measurement
Measures DC volts, amps and power
Display and capture voltage, current and power harmonics to 50th order, including direction, in real time
Capture transients down to 1/256th of a cycle
Phasor diagram display
Peak voltage and current
Nominal frequency from 40 to 70Hz
VA, VAR and W per phase and total
kVAh, VARh and kWh per phase and total
Neutral current display for three-phase
Crest factors for current and voltage
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) from 1st to 50th
Alarms, surges and sags
Records date and characteristics of disturbances
Immediate printout directly to a printer
Screen snapshot function captures waveforms or other information on the display
Optically isolated RS-23 communication port
600V Cat. IV safety rating

Verification of power distribution circuits
Measurement and recording of power system quality (kW, VA, VAR)
Energy metering (kVAh, VARh, kWh)
In plant troubleshooting of power distribution panels and individual machinery
Monitor pad mount transformers
Determine harmonic problems originating from source or load
Monitor phase unbalances
Determine transformer K-factor
Sampling Frequency 256 samples per cycle
Data Storage 4MB partitioned for waveforms, transients, alarms and trend recording
Voltage (TRMS)
Phase-to-Phase: 960V 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 1000AAC,10 to 1400ADC AmpFlex®: 0 to 6500A1
Single-Phase RMS Voltages 15 to 480V 0.1V ±0.5% ± 2cts
Phase-to-Phase RMS Voltages 15 to 960V 0.1V ±0.5% ± 2cts
DC Voltage Component
15 to 680V 0.1V ±1% ± 2cts
Single-Phase Peak Voltages
15 to 680V 1V ±(1% + 5cts)
Phase-to-Phase Peak Voltages 15 to 1360V 1V ±(1% + 5cts)
Frequency (Hz) 40 to 69Hz 0.01Hz ±0.01Hz
Current Probes (Arms)
MN Clamp
SR Clamp
AmpFlex® Probe

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

0.1A; 1A = 1000A
0.1A; 1A = 1000A

±(0.5% + 2cts)
±(0.5% + 2cts)
±(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 (1st to 50th)
F = 40 to 69Hz
(V = 50V, A > Inom/100)

0 to 999%


±1% + 5cts
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: 110/230VAC ±20% (50/60Hz)
Battery Life =8 hrs with display on; =35 hrs with display off (record mode)
Dimensions 9.5 x 7 x 2″ (240 x 180 x 55mm)
Weight 4.6 lbs (2.1kg)
Display Type 1/4 VGA (320 x 240) color LCD
Operating Temperature 32° to 122°F (0° to 50°C)
Storage Temperature -4° to 122°F (-20° to +50°C)
Safety Rating EN 61010-1, 600V Cat. IV (When used with SR193 or AmpFlex Probes. 600V Cat III With MN193 or MR193 Probes) Pollution Degree 2
Double Insulation Yes
CE Mark

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