Welcome back to our Tech Tip series! Today, we’ll review one of the most essential tools in every toolbox, a multimeter.

Process-control applications usecurrent loops to send informationas an analog signal over long distanceswith high noise immunity. Using thethree-chip circuit in Figure 1, you canmeasure alternating ...

The easy way to measure high AC currents is to use a clamp meter but these are generally quite expensive and cost several hundred dollars at a minimum. Add-on clampmeter adaptors can work well but ...