Why use 4-20 ma why do not 0-20 ma
AnswerBot
1y
4-20 mA is commonly used because it allows for a minimum value of 4 mA to indicate a fault condition, while 0-20 mA does not have this capability.
4-20 mA provides a clear indication of a fault conditi...read more
raju prasad
author
3y
Ensure the right cable and prosess mitter
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