Category: Blog

Introduction to Process Calibrators

Process calibrators are handheld, battery-powered instruments used for field testing and calibration of industrial process equipment. The typical calibrator has a one or two-parameter digital display, function switch and up/down buttons for output level adjustment.

Current Transformer Turns Ratio & Polarity

CT Ratio Formula

An instrumentation Current Transformer (CT) is used to step down AC current to a level that can be more easily measured by a panel meter or test instrument. The amount of step down is specified by the CT ratio (e.g.

How to Size a Current Transformer

The Current Transformer (CT) is used to sense AC current in single-phase or three-phase circuits. In the basic instrument-grade current transformer, a single primary conductor passes through the core. The secondary winding has multiple turns to provide a lower output current,

Differences Between LCD and LED Displays

Digital Panel Meter

Digital panel meters (or DPM) typically uses either an LCD (Liquid Crystal Display) or LED (Light-Emitting Diodes) to display information in an alphanumerical format. What are the differences between LCD’s and LED’s and how do you know which one to pick for your application?

The Taut-Band Analog Meter

switchboard meter with Taut-Band Suspension System

Taut-Band Suspension System vs Pivot and Jewel Mechanisms
The frictionless, shock-proof, taut-band suspension system has demonstrated superiority over the pivot-and-jewel mechanism in all types of analog panel meters.