PGM-IR operation: Getting Started. This video features Bacharach's Jim Mowery explaining how to get started using the PGM-IR -- a portable gas monitor that uses infrared gas detection technology. Jim briefly discusses operation basics, the menu system, faults, diagnostics, gas types, tick rate, and audible alarms for leak detector mode. This is video one of a 3-part series. Be sure to watch parts 2 and 3 on how to check for refrigeration leaks in a grocery store using the PGM-IR.