AEMC PowerPad 3945 User Manual page 10

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ON / OFF button.
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Three (3) current inputs on the top of the instrument to enable the use of
current sensors (MN, SR, AmpFlex™, and MR probes).
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Four (4) voltage inputs.
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RS-232 bidirectional optical output for transferring data to a PC (bidirectional)
or printing to a dedicated printer (DPU 414 - SEIKO).
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AC Line power input.
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Enter button.
Four (4) buttons that enable movement of the cursor, browsing or the selec-
tion of data.
Buttons for directly accessing the 6 display modes at any time:
Transients (set recording or view recorded transient):
• displays waveforms such as, motor startup current (INRUSH) and
Harmonics View:
• representation of the harmonic ratios of voltage, current and
• determination of harmonic current produced by non-linear loads
• analysis of the problems caused by harmonics according to their
Waveforms View:
• displays voltage and current waveforms or vector representation
• identifi cation of signal distortion signatures
• display of amplitude and phase unbalance for voltage and current
• checking connections for correct phase order
Power / Energy (view or start energy monitoring):
• display of power levels and the associated parameters
• energy monitoring
• four quadrant measurement to discern produced/consumed
Recording (set recording or view recorded data):
• time-related representation as bar charts or curves, of average
• line voltage stability check
• management of power consumed and generated
• monitoring of harmonic variations
Power Quality Analyzer Model 3945
interruptions
power, for each harmonic through the 50
order (heating of neutrals, conductors, motors, etc.)
(Phasor diagram)
(power factor, displacement and tangent)
active energies and inductive/capacitive reactive energies
power levels or of the average value of any parameter
th
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