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Formula to Calculate Process Variable from 4-20mA

S Bharadwaj Reddy
How to Calculate Process Variable from 4-20mA current loop output of a field transmitter. Check the formula to find out Process variable (PV). Calculate Process Variable from 4-20mA   Formula...

Calculate Control Valve Stem Position

S Bharadwaj Reddy
An electronic  loop controller  outputs  a signal of 8.55 mA to a direct-responding control valve (where 4 mA is shut and 20 mA is wide open). How far open should the...

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