Introduction to Digital Multimeters - Part 1
August 14th, 2020:
Digital Multimeters (or DMM's) have been described as the tape measure of the new millennium! But what exactly is a digital multimeter and what can you do with it? How do you make measurements safely and what features should you look for? What is the best way to get the most out of your DMM? These and other questions will be answered in our introduction
Electrical Testing & Safety Standards
July 15th, 2020:
Electrical safety testing is extremely important for ensuring safe operating standards for all products that use electricity. Various governments and agencies have developed strict requirements for electrical products that are sold world-wide. In most markets it is mandatory for a product to conform to safety standards such as UL, CE, CSA, ETL, ISO and so on. To conform
Current Transformer Primary Turns Explained
June 16th, 2020:
The Current Transformer (or CT) is a type of “instrument transformer” which produces an alternating current in its secondary winding that is proportional to the current being measured in its primary. Current transformers can reduce or “step-down” current levels from thousands of amperes down to a standard output of either 5 Amps or 1 Amp for normal operation. Therefo
How to Size a Current Transformer
May 15th, 2020:
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, as shown in the diagram. This allows the meter to be located away from the high current circuit.
Current Shunt Discussion
April 15th, 2020:
Direct current instrument shunts are used to extend the range of ammeters whenever the current to be measured is too large to be passed through the instrument - typically currents above 50 amperes. The shunt, therefore, is a diverter which is used to "shunt" the majority of the current around the indicating instrument. The current shunt is essentially a specifically designed resistor
What Are The Differences Between LCD and LED Displays?
March 16th, 2020:
A digital panel meter (or DPM) typically uses either an LCD (Liquid Crystal Display) or LED (Light-Emitting Diodes) to display information in an alphanumeric format. What are the differences between LCD’s and LED’s and how do you know which one to pick for your application? Read on to find out!