Why do we use 4-20mA signal instead of 0-20mA current signal? in instrumentation 

Hey,
here we will show 5 main reason to use 4 to 20mA Analog signal
in Instrumentation.
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#4-20mA #0-20mA #analogsignal #4to20mA #0to20mA #analogsignalintrumentation #why4mA
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