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WHY WE NOT USE 2-20mA,1-20mA,3-20mA or 10-50mA SIGNAL?
INSTEAD OF 4-20mA.
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- Hindustan Unilever Limited, Yashmun Engineers, I also Faced
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Answer Posted / lalatendu keshari prusty
4-20ma signals will travel along distance without dropping signal value and the internal circuit distinguish between connection break & minimum value.
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