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how manys ways dp transmitter can be calibrated having
range of -150 to 400mmwc,what side pressure u will apply?
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Answer Posted / basil
TWO WAYS.WE WANT TO GIVE 150 MMWC ON THE LOWER SIDE AND
ZERO PRESSURE ON HIGHER SIDE AND SHOULD GET THE OUT PUT OF
4 mA.AND ZERO PRESSURE ON THE SIDE OF LOWER AND 400 mmWC ON
THE HIGHER SIDE AND SHOULD GET THE OUT PUT OF 20mA.
IF NO PRESSURE ON BOTH SIDES THE OUTPUT SHOULD BE 8.36 mA
(IF IT IS A 4-20mA TRANSMITTER)
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