Answer / vipul s prajapati

From manometer, you will only get differential pressure(Say Delta P). Now you can convert it to flow by given formula.

Flow= Sqrt. of Diff. pressure

Ex. suppose you got Delta P of 100mmwc of 400mmwc full scale measurement. then Delta p would be 0.25 or 25%. flow become sqrt of 0.25 = 0.5 or 50%. of full scale flow measurement.

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