Explain this system, identifying the controller, actuator and process and sensor?

 

Process Control The level in the tank remains constant when the input flow rate equals the output flow rate. The level rises when the input flow rate is greater (or drops when the input flow rate is less) than the output flow rate. The controller uses the level signal to maintain a balance between the input and output flow rates. Measured level signal (C) (3-15 psi) Controller output (3 - 15 psi) Setpoint Pneumatic controller Input flow Level measuring means Control valve Level of liquid (C) Level system Output flow