Click save settings to reload page with unique web page address for bookmarking and sharing the current tool settings
Invert the low & high range limits for the measurement input settings
Flip tool with current settings to swap measurement input (I) with sqrt 4-20mA output parameters
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| 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 |
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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.
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