Walking through most process plants or remote facilities, an observer will encounter a sizeable collection of temperature and pressure instruments. Without knowledge of the two critical parameters of ...

The analog manometer, commonly referred to as a Magnehelic ®, is a test instrument that has been around the HVAC industry for decades. Among many technicians in the field, it is still the test ...

Anyone who has attempted to measure the pressure drop of a filter mounted in a filter grille will admit it’s a challenge. Some installations have a significant amount of return duct between the filter ...