why does a transmitter o/o signal starts from 3-15psi or 4-
20mA?
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Answer Posted / suresh
This is Live zero concept. In case of airsupply failure or
Current loop failure the Control equipment (DCS/PLC) senses
below 3.5mA, considered as Loop Open circuit.
| Is This Answer Correct ? | 13 Yes | 4 No |
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