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David Horning

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

Case Study: Tensor in a Backyard Greenhouse

Dec 31, 2025 10:47:11 AM David Horning Power Quality, Case Studies, Tensor

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Voltage Unbalance Within PQ Canvass Compliance Reports

Oct 14, 2025 8:08:45 AM David Horning Power Quality, Voltage Unbalance, PQ Canvass

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The Right Way to Measure Power in Three-Wire Delta Systems

Aug 19, 2025 8:20:51 AM David Horning PMI Products, Power Quality, Using PMI Recorders

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Getting PQ Data from your SCADA System

Aug 6, 2024 7:43:43 PM David Horning PMI Products, SCADA

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Record, Diagnose and Troubleshoot Oscillatory Transients

Nov 28, 2023 10:58:18 AM David Horning Power Quality, Analyzing Waveforms, PQ Canvass, Seeker

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Harmonic Calculations

Aug 22, 2023 5:59:28 PM David Horning Power Quality, PQ Canvass

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Seeker Modbus Map

Nov 9, 2022 9:41:22 AM David Horning SCADA, Seeker

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Analyzing Portable Power Station Inverter Power Quality

Aug 23, 2022 12:04:54 PM David Horning Analyzing Waveforms, PQ Canvass, Harmonics/Interharmonics, Voltage

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Impact Loading

Mar 6, 2019 2:54:03 PM David Horning ProVision, Using PMI Recorders

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TDD and IEEE 519:2014

Aug 1, 2018 11:13:37 AM David Horning ProVision, Power Quality, Harmonics/Interharmonics, IEEE Standards

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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.