This amount of mechanical motion inevitably causes screws to reposition, springs to weaken and mechanical linkage to loosen. In addition, electronic components change value over time. The results are valves that don’t fully open or close, close prematurely, or operate erratically and cause improper regulation of the gas or liquid under its control. This is more commonly referred to as “calibration drift.
COMTEST says with Fluke’s new PQ400 Electrical Measurement Window, a permanently installed interface, technicians have safe and near-instant access to electrical panels for making critical power quality and energy measurements.