why we use 250 ohms across HART CALIBRATOR DURING
CALIBRATION OF TRANSMITTER
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Answer Posted / mohamadmerajalam
I think 250 ohm use for drop the crrunt of circuit .If I use above the 250 ohm i can't get sufficient output crrunt.one thinks more that if you increase or decrease the ohm as well as output crrunt will be increase dearead . that's why i can't exceeds resistance value
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