In Part 1 of this two-part series, we presented a 3-phase, 480VAC motor circuit with its associated controls (Figure). We stepped through a logical, systematic approach to troubleshoot the main power ...

Troubleshooting live electrical circuits can pose a hazard not only to the equipment being worked on, but more importantly, to the person performing the labor — especially if that individual lacks ...

Multimeters are indispensable tools when working on electronics. It’s almost impossible to build any but the most basic of circuits without one to test and troubleshoot potential issues, and … ...

I’m about to buy a digital multimeter to troubleshoot all sorts of electrical issues around my home. I’ll be blunt. Do you own one? If so, which one? What do you like about the one you have ...

You might still be wondering how this is any different than a limited multimeter. Well, you can use the Power Probe 3 to send power to circuits and parts to see what’s really happening.

The basic test instrument suite — a bench power supply, a good multimeter and perhaps an oscilloscope — is extremely flexible, but not exactly “plug and play” when it comes to diagnosing ...