Process variable measurement indicator

Process variable measurement indicator

Flow: Defined as volume per unit of time at specified temperature and pressure Conditions, is generally measured by positive-displacement or rate meters.

Units: kg / hr, litter / min, gallon / min, m³ / hr, Nm³ / hr. (gases)

Pressure: Force acting per unit Area. P = F/A

Units : bar, Pascal, kg / cm², lb / in².

Level: Different between two heights.

Units: Meters, mm, cm, inches , percentage.

Temperature: It is the degree of hotness or coldness of a body.

Units   : Degree Centigrade, Degree Fahrenheit, Degree Kelvin, Degree Rankin.

Quality: It deals with analysis. (PH, % CO₂, % 0₂, Conductivity, Viscosity)