Several linear transmitters have been installed and calibrated as follows: (a) Develop an expression for the output

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Several linear transmitters have been installed and calibrated as follows:

pneumatic S transmitter 400 gal/min → 15 psig O gal/min -3 psig Flow rate: } → 20 mA →4 mA current 30 in Hg 10 in

(a) Develop an expression for the output of each transmitter as a function of its input. Be sure to include appropriate units.

(b) What is the gain of each transmitter? zero? span? Is the gain constant orvariable?

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Process Dynamics And Control

ISBN: 978-0471000778

2nd Edition

Authors: Dale E. Seborg, Thomas F. Edgar, Duncan A. Mellich

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Question Posted: Jul 29, 2011 02:57 PM

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Several linear transmitters have been installed and calibrated as follows: (a) Develop an expression for the output

Question:

pneumatic S transmitter 400 gal/min → 15 psig O gal/min -3 psig Flow rate: } → 20 mA →4 mA current 30 in Hg 10 in Hg Pressure: transmitter → 5 VDC voltage →1 VDC J transmitter 20 m Level: 0.5 m → 10 VDC] voltage →1 VDC J transmitter Concentration: 20 g/L 2 g/L

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a Flowrate pneumatic transmitter b The gains zeros and spans are 9mpsi...View the full answer

Process Dynamics And Control

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