Atec AEMC-3945 User Manual

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Categories > Electrical & High Voltage Test Equipment > AC Power-Electrical Meters > Power QualityAnalyzers > AC Power Quality Analyzers > Handheld Power Meters > Loggers & Recorders

Three-Phase Power Quality Analyzer

PowerPad™ Model 3945 AEMC 3945 Power Quality Analyzer Product Page

How-To Video

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:

Waveforms – 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.

Harmonics – 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.

Transients – 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 preand two post-triggered waveforms. As many as 1200 waveforms can be captured.

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Alarms – 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.

Record – 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 comes with all options and accessories needed to capture, display, download, analyze and store data. No addon accessories are required that increase your cost. PowerPad is supplied with AEMC’s DataView® Professional graphing/analysis software package at no

additional cost (a $395.00 value). The software lets you completely configure and capture data in real time on your computer. You can download all stored data from PowerPad and print reports from a library of pre-designed templates or create your own custom templates and reports.

In addition to all of this, PowerPad speaks six different languages. At the press of a button, information can be displayed in English, Spanish, French, Portuguese, Italian and German.

Arrange for a demonstration today!

Tilt-out bail facilitates bench top operation for convenient viewing of display.

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Features

•True RMS single-, twoand 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

•Includes DataView® Professional software for data storage, analysis and report generation

•EN 61010, 600V Cat. III

Power quality analysis on a three-phase panel using the AmpFlex™ flexible current probes.

Applications

•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

•And much, much more

Measure all three phases of voltage and current simultaneously.

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Functional Displays

Configuration

Configuration is simple and straightforward. Simply press the setup button and select the function you wish to configure. For example, to configure the input, select the desired hookup from the graphical choices for single-, twoand three-phase. Neutral current is calculated in the 4-wire hookup.

PowerPad’s direct access system lets you see the important information you need at the press of a button. Quickly review waveforms, harmonics, transients, alarms and recorded data on screen. Setup is straightforward using a combination of graphic and text prompts to quickly configure PowerPad for

the job site.

	Snapshot Mode			Printing		Transient Mode

You can store up to 12 screen snapshots simply by pressing the camera button while the desired information from any of the instrument’s modes is on the display. Any of the stored snapshots can be selected and displayed by selecting it from the list.

Harmonics Mode

Information on screen (real-time or stored data) can be sent to a printer using the serial interface by simply pressing the print button.

Display transients that were captured – each transient consisting of one pre-trig- gered cycle, the triggered cycle and two post-triggered cycles. All inputs are stored when a transient is captured. Up to 50 transients can be stored, each consisting of four cycles and up to six inputs for a total of 1200 transient waveforms.

Voltage, current and power harmonics can be displayed in real time, in bargraph and text form, and stored in memory. Individual harmonics can be analyzed by moving the horizontal cursor to that harmonic. Harmonic direction (source-to-load or load-to-source) can be displayed for power harmonics. Harmonic sequencing (negative, zero and positive) can be displayed for volts or amps for all phases.

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