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A considerable drawback is that most manometers aren’t accurate enough to measure pascals. Remember, one pascal equals four-thousandths of an inch of water column, and you need a test instrument that ...

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 ... and ...

Analog manometers are available in a variety of scales for use in the HVAC industry. These instruments are also available in various pressure units varying from pascals and inches of water column (wc) ...