Part 3 delves into critical equipment for testing today's electronics, and provides updates on circuit-board designs from Part 1.

Snap-on ’s new EECT900 Multi-Probe Ultra features a circuit tester and digital multimeter in one handheld device for testing AC and DC voltage, resistance, and amperage.

These three tests should be in your preventive maintenance program for medium-voltage circuit breakers: 1. Contact resistance test. Use a digital low-resistance ohmmeter (DLRO), not a digital ...