[2] A direct acting proportional only level controller is set up with the gain of 4 . The transmitter input range is 3 t

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2 A Direct Acting Proportional Only Level Controller Is Set Up With The Gain Of 4 The Transmitter Input Range Is 3 T 1 (26.97 KiB) Viewed 32 times

[2] A direct acting proportional only level controller is set up with the gain of 4 . The transmitter input range is 3 to 15 psi. At base point load, the water level corresponds to 10 psi, the set point at 10psi and the controller output at 7psi. If the controller output has to decrease to 5 psi to control a load flow decrease, what will the resulting level offset be? P=Kc​(c−r)+P0​ Where : P - controller output pressure in psi; P0​ - initial or "base point" controller output pressure in psi; Kc - controller gain (positive for direct action, negative for reverse action); c− transmitter output in psi; r - setpoint transmitter output in psi ( 3 psi when set level =0;15 psi when set level =100 )