Most fire alarm techs misuse their meters in two ways — using an ohmmeter on a live circuit and using an ohmmeter at all — ...
The meters that can be used in this application are the DMS-20PC-0, DMS- 20LCD-0, DMS-30PC-0 and the DMS-30LCD-0. The “0” suffix on all these part numbers indicates that these meters have an input ...
One of my go-to diagnostic tools is a simple home-brew audible ohmmeter (AudOhm). This circuit has served me well for many years, allowing “heads up” testing of wiring harnesses and control equipment, ...
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