Orifice flowmeter

Hello,

1)If i have dp flowmeter with squarerooted output isnt it so that output is linear with flow(gas)?
2) If measurement is calibrated so that output is 0...200mbar(0...2000Nm3/h) with 1bar supply pressure and gas temp is 15 degrees of celsius. Let assume that gas temperature goes to 25, how do i calculate temperature compensation? And same question if input pressure varies?
Sorry stupid question but im not so familiar with dp measurements
 
Hello,

1)If i have dp flowmeter with squarerooted output isnt it so that output is linear with flow(gas)?
2) If measurement is calibrated so that output is 0...200mbar(0...2000Nm3/h) with 1bar supply pressure and gas temp is 15 degrees of celsius. Let assume that gas temperature goes to 25, how do i calculate temperature compensation? And same question if input pressure varies?
Sorry stupid question but im not so familiar with dp measurements
Most modern flow transmitters do all of the compensation for you.

https://www.emerson.com/en-us/catal...&pageView:list&minPrice:&maxPrice:&pageSize:&

For instance, we use this for gas flow measurement and the gas contents i.e. methane etc are programmed in from the factory from data obtained from the gas supplier.
 
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