E-M relays were simple devices that had fixed test procedures because they were typically single-function devices. This meant that Element testing and logic testing were automatically combined together when you tested the relay.
Modern relay testers are often fixated on the element and forget the logic. Both parts of the equation are vital. The element can operate perfectly, but if isn’t programmed to do anything, it might as well be turned off. This video shows you how to perform some simple logic testing that will make you a better, and faster, relay tester.
Click “Mark Complete” below after watching the video so you can keep track of your progress.