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How to convert Gauge to Absolute Pressure in PI Datalink?

Question asked by ElizabethDouglas on Jul 13, 2017
Latest reply on Jul 13, 2017 by sraposo

I have a tag that gives me the Pressure reading off a transmitter in psig.  I don't want to go through the hassle of creating another column to convert it to psia.  So I want to make it so the values I get as an output are tag (psig) + 14.69 so that it will be in units of psia.  I know I can use conversion factors fro multiplication and division but how do I add or subtract in PI Datalink?  I believe using a filter expression would be appropriate, but I'm not sure how the syntax should be.

 

Thank you.

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