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canu tell me why 4-20 ma and why not this 3-25ma?please
give reason of this value.
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Answer Posted / vijay
usually there exsist linear relationship between this range
when you plot pressuer verses current graph. so depending
on application we can select o/p as 4-20mA or 3-15 psig.
also
for long distance transmission 4-20mA is good
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