Measuring and recording Earth Ground Resistance is important to maintain an electrical system. The Amprobe GP-2A Earth Ground Resistance Tester is one such device that can handle these tests. Having poor grounding can lead to premature equipment failure and extended downtime which can be quite costly to a company’s operations. The handheld unit is lightweight (2.2lbs) features an easy to read display and has a simple to navigate menu system.

The AEMC 3731 Clamp-On Ground Resistance Tester has been discontinued.

Today we’re going to take a look at the AEMC 3731 Clamp-On Ground Resistance Tester. To be honest, I tend to think that electricity is a kind of magic. The best way I’ve found to understand it is to make comparisons to the flow of water and the various aids and impediments to said flow. Water, being a much more tactile phenomenon is easier for the more lay folks like myself. This analogy leaves out some of the unique and complex features of electricity but it works as a guide.

When it comes to testing equipment it can be easy to get lost in the latest and greatest technology. For ground resistance testing, sometimes less is more. The AEMC 3620-150 3-Point Ground Resistance Tester happens to be one of these testers. This ground resistance tester has a large analog display that shows direct readings from 0.5 to 1000 ohms. There is also a manual zero adjustment to increase the accuracy of your readings. Looking at the AEMC 3620 you can see there is very little to set up.