Page 4 - kursus eBook

Without measurement there is no control. As with any PRESSURE MEASUREMENTS
type of measurement, results need to be expressed

in a defined and clear way to allow everyone to When measuring pressure, there are multiple units
interpret and apply those results correctly. Accurate of measurement that are commonly used. Most of
measurements and good measurement practices these units of measurement can be used with the
are essential in industrial automation and process international system of units, such as kilo, Mega, etc.
environments, as they have a direct effect on the These units are defined as follows:

success of the desired outcome. PSI (Pounds per Square Inch): This is the unit of

Pressure, the measure of a force on a specified area, measure for one pound of force applied to one
is a straightforward concept, however, depending square inch of area. PSI is a typical unit of pressure in

on the application, there are many different the United States.
ways of interpreting the force measurement. BAR: One bar is equal to the atmospheric pressure
This white paper will identify the various units of on the earth at sea level. BAR was a unit of measure
pressure measurement, while discussing when created in Europe and is still commonly used there.

and why certain pressure measurements are used
in specific applications. PA (Pascal): This is the unit of measure for one
newton of pressure per square meter.

InHg (Inches of Mercury): This is the unit of measure

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