DP Flow Transmitter Output Calculator

Measurement Input Parameters
Unit [?]
Reading [?]
Low Limit [?]
High Limit [?]
Square Root Extraction Signal (4-20mA)
SqRt Output (mA) [?]

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Invert the low & high range limits for the measurement input settings

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Contents

Related Tools

Find another flow measurement calculator by clicking on the required answer which coincides with the input parameters you already know.

	vol flow	mass flow	flow speed	vol	mass	time
area	flow speed		vol flow
dia	flow speed		vol flow
w x h	flow speed		vol flow
time	vol	mass		vol flow	mass flow
vol	time				density	vol flow
mass		time		density		mass flow
density	mass flow	vol flow		mass	vol
flow speed	area, dia

User Guide

This differential pressure flow transmitter square root extraction 4 to 20 milliamp current output calculator provides a way to determine the flow output reading from the pressure drop measured across an orifice plate and the differential pressure transmitter range. A conversion scale graphic for each differential pressure and SqRt 4-20mA flow output range combination entered is also displayed below the calculated values.

Formula

This dp flow transmitter output calculator uses the following formula to calculate the output over a SqRt 4-20mA range:

Linear mA out = 4 + (16 x ((Rdg – Low Limit) / (High Limit – Low Limit)))

Parameters

Unit

Enter the unit used for measuring differential pressure, e.g. mbar, psi, kPa, inH2O etc…

Reading

This is the differential pressure measured by the dp flow transmitter that you wish to convert to a square root extraction 4 to 20 milliamp current output reading.

Low Limit

Enter the lowest pressure that the dp flow transmitter will measure. For example zero would be a typical value for most dp flow transmitters, but you can also add negative (-) or positive (+) values as well. Please enter the value in the same pressure units as specified for all other input values.

High Limit

Enter the maximum differential pressure that the dp flow transmitter will measure.

SqRt Output (mA)

This is the expected ideal dp flow transmitter current output signal in milliamps for the pressure drop specified.