Fieldpiece SMG5 - Standalone Digital Megohm Meter
The SMG5 can be used to “ohm out” a compressor. The backlight helps in the dark, the slim shape helps in cramped areas, and the long probe tip can reach the windings terminal easily. 1000 volts DC are supplied by the SMG5 to test the high resistances of compressor insulation. Moisture and other contaminants deteriorate the insulation and can lead to compressor failure. Use Megohmmeter measurements on the same equipment over time. Decreasing insulation resistance levels can forecast future catastrophic failure.