Measuring the electrical resistance (ohms) of motors, compressors, and other electrical devices in HVAC systems may seem straightforward. But when the measurements of zero (0) or “OL” (overload) come ...

Insulation failure is the root cause of many electrical conductors and equipment failures. When insulation fails, not only can equipment be damaged, but fire and shock can also result. Ideally, when ...

In the spirit of continual learning and, as a follow on to my previous blog, Line Regulation Measurement Coding in Python, I thought I would continue discussing coding for measurements by providing an ...

Don�t heap all the blame for a wrong measurement on the DMM. There can be several less obvious sources of the errors. Testing assemblies and components usually includes checking the continuity of ...

Why do you have to take a resistor out of a circuit to measure its resistance? I would assume it is because of the way the DMM makes the measurement.<BR><BR>The DMM sends out a specific current and ...

An array or bank of load resistors is often required for testing power products, characterization of solar panels, and many other applications that require evaluation under various well-defined loads.