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 ...

Technicians new to static pressure measurement often wrestle with frustration and doubt as they learn this new skill. Two of the most common issues are uncertainty about pressure measurement results ...

To present abbreviations and fundamental conversion factors commonly used in manometry; recommended definitions of pressure in terms of a column of mercury and water; and for a large number of liquids ...