Answer Happy

2. [2] A direct acting proportional only level controller is set up with the gain of 3 . The transmitter input range is 3 to 15 psi. At base point load, the water level corresponds to 10 psi, the set point at 10 psi and the controller output at 9 psi. If the controller output has to decrease to 6 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; Po - 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)