Calculate the equivalent Percentage for any given Process variable. For conversion, we need transmitter Lower Range Value and Upper Range Value.
Process Variable to Percentage Conversion
Percentage % = ((Process Variable – LRV)/Span)(100)
Span = URV – LRV
URV upper range value
LRV lower range value
An electronic Pressure transmitter is ranged -1 to 5 Bar and has a 4-20 ma. Calculate the Percentage output by this transmitter if the measured Pressure is 1 Bar
Span = 5 – (-1) = 6
Percentage % = ((Process variable – LRV)/Span)(100)
Percentage % =((1-(-1))/6)(100)
Percentage % = 33.33 %
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6 thoughts on “Formula for Process Variable to Percentage Conversion”
Thanks for sharing the formulas related to instrumentation.
Thanks for the information.
Thanks allot Sir
If conversion from MA to differential pressure any formula?????
thank you very much SIR