Flow rate: 0 gal/min 9.1 Several linear transmitters have been installed and cali- brated as follows: 400 gal/min → 15 psig pneumatic transmitter -> 3 psig Pressure: 30 in Hg → 20 mA 10 in Hg 4 mA Level: 10 m → 5 VDC 0.5 m → 1 VDC Concentration: 20 g/L → 10 VDC current transmitter voltage transmitter voltage 3 g/L → 1 VDC transmitter (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?