Instrumentation and Control: Automatic Process Control Part 1

State the function of a process control system. Describe the functions of the four basic elements of an automated process control system. Explain what a process disturbance is and how it can affect a process control system. Describe feedback and feedforward control and explain how they can be used in a process control system. Define the terms resistance and capacitance. Define the terms dead time and lag time. Explain how resistance capacitance dead time and lag time can affect a process control system.