Why ues 250 ohms Resistor during hart type instruments
calibration with hart protocol in details ?
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Answer Posted / s.k.bakshi
The 250 ohm resiatance is necessary to support the communication between transmitter and HART because it equalizes
1. loop resistance
2. barrier resistance
3.wire resistance
4. receivers resistance
| Is This Answer Correct ? | 15 Yes | 7 No |
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