PMI recorders use a variety of algorithms to compute RMS voltage and current, real, reactive, and apparent power, true and displacement power factor, and phase angle. The formulas for these…
White Papers
Browse our library of power quality technical resources.
432 white papers
Event Driven Recorder Function
What follows is a general overview of some of the basic event driven recorder functions available when using ProVision Software and some instructions on getting started with collecting useful data…
Flicker Standards Used By PMI Recorders
This white paper reviews Flicker theory and details the Flicker Standards that are used by PMI recorders. Most PMI recorders have the ability to measure Flicker. Many models and options…
Analyzing Daily Profile Graphs with Canvass
Canvass is Power Monitors' latest web-based power quality analysis portal capable of providing data analysis for single-phase voltage monitors. With Canvass, the user can view voltage stripcharts, histograms and daily…
Communicating with the Field PC and ProVision Mobile
ProVision Mobile is the portable version of our power quality analysis software. This white paper demonstrates how to prepare a desktop computer to interact with the Field PC and ProVision…
Downloading a Recording with ProVision Mobile
The Field PC is a handheld, ruggedized device running Windows Mobile and offering a wide array of features. The Field PC comes preloaded with ProVision Mobile, the portable version of…
An Introduction to the Canvass Interface
Now it is possible to inspect the quality of electricity from hard line power sources from anywhere with internet access. PMI's Canvass web-based software works with Boomerang Voltage monitors to…
Downloading ProVision Software and Updates
It is always a good practice to update Provision whenever a new version is released. ProVision allows for the retrieval and analysis of power quality data from the entire line…
An Introduction to the Vision Recorder Interface
The purpose of this paper is to show just how easy it is to use the Vision® Recorder's on-board user interface while providing some tips and tricks for quick and…
Optimizing Memory in a Recorder
This white paper describes the proper steps to optimize your recorder's memory for longer record times and better resolution of data.
Sign Convention for Power Measurements
This white paper describes the sign convention used to represent Power data in PMI Recorders. Most of our recorders offer the ability to record Real Power (W), Reactive Power (VAR),…
Recorder Settings for Harmonic Investigations
This white paper describes the best recorder setup for investigating a harmonics complaint or evaluating utility and customer compliance to IEEE 519 harmonic distortion limits. Determining the objectives for a…
