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WHICH INSTRUMENT USED TO CALIBRATE CONTROL VALVE?
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Answer Posted / aby
If the signal is directly connected to EP then we can use
source meter and adjusting the zero and span by giving 4
and 20 mA. If there is I/P then also this method is
applicable. Now if the pneumatic signal to the positioner
is in standard form and not working properly then we can
adjust the valve positioner for proper working..
| Is This Answer Correct ? | 95 Yes | 6 No |
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