what is the difference between active and passive loop ?
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Answer Posted / rahul sr
Passive Loop: The transducer must be provided by an
external power supply for its working. Then it generates
the signal according to the Process parameter. This may
have either 2 wires, 3 wires or 4 wires.
Active Loop: There is no need to give external power supply
for the transducer. The sensor itself generates signal
without giving power supply. This will have only 2 wires.
| Is This Answer Correct ? | 39 Yes | 22 No |
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