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Think you mean 3-15 psi ( most common) not 100% sure but I used the 5 point check percentages and found out what the numbers were for both units. 7mA is 6.50 mA less than 8 mA which is 25% so 7 mA is 18.5%. In turn what is 18.5% of psi (3-15 psi span) which the span is 12 units. So 18.5% of 12 is 2.22 right? But wait we got to add 3 units to 2.22 to account for the actual number of psi readable units!!!!!! Since we aren't starting from 1=1% it's actually 3=0%. Maybe I'm all wrong and I'm sure theres an easier way.......

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12y ago
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Q: How you convert 4-20 ma into 3-51 psi?
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