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Cowles Andrus III

For 25 years, we’ve been developing specialized power quality monitoring systems that are all-weather, rugged, compact, and easy to use.
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Recent Posts

Overview of Interval Graph Recorders

Feb 10, 2017 11:55:26 AM Cowles Andrus III Using PMI Recorders

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kWh Variations Between PMI Recorders and Revenue Meters

Feb 10, 2017 11:51:42 AM Cowles Andrus III Power Quality, Flex CT, Using PMI Recorders, TLAR

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Tools for Cell Signal Verification Before Installation

Feb 10, 2017 11:51:01 AM Cowles Andrus III Cellular Communications

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Comparison of Eagle 440 and Revolution PQ Analyzers

Feb 10, 2017 11:50:38 AM Cowles Andrus III Revolution, Meter Sockets, Using PMI Recorders, Eagle

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Event Capture Function

Feb 10, 2017 11:46:51 AM Cowles Andrus III Power Quality

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THD-F vs THD-R

Feb 10, 2017 9:37:19 AM Cowles Andrus III Eagle

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Ring Frequency, PF and CF from Waveform Capture

Feb 10, 2017 9:34:33 AM Cowles Andrus III ProVision, PMI Products, Analyzing Waveforms

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Zero Sequence Harmonics

Nov 16, 2016 6:00:00 AM Cowles Andrus III Power Quality, Harmonics/Interharmonics

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Low-Energy Lighting and Power Quality

Sep 7, 2016 6:00:00 AM Cowles Andrus III Power Quality, Harmonics/Interharmonics

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Case Study of Portable Generator Power Quality

Aug 10, 2016 6:00:00 AM Cowles Andrus III Case Studies, Harmonics/Interharmonics

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Power Monitors, Inc. is an industry-leading product design and manufacturing firm based in Mt. Crawford, Virginia. PMI® strives to solve power quality problems by listening to our customers and working with them to design and manufacture products. Total customer satisfaction is the primary goal of all PMI® staff. Please browse our site or call us to learn more about PMI® and how we can help meet your power monitoring needs.
800 N Main St Mt Crawford, VA 22841 | Toll Free 800.296.4120 | Fax 540.432.9430 | © Power Monitors, Inc.