How to Create a 4-20mA Output Proportional to Flow Rate – 8400304

Problem:

A flow sensor has a non-linear reversed output.

Solution:

Create a 4-20mA output proportional to flow rate using the following Acromag transmitter and software products:

The 811T offers a 25 break-point table for sensor linearization. Input percentage is based on sensor V DC output.
Output percentage is based on actual flow rate. “Reverse” action is also achieved via the table.

 

Download PDF for complete application note, including additional diagrams.