Taming the Process

Tame every loop in the plant. From the fast, noisy flow loop to the stubborn temperature loop that trips the unit at three in the morning, every control loop has a personality, and every one can be tamed. Taming the Process is the field engineer's guide to the three-term controller at the heart of modern process control, written for the technician, the young engineer, and the operator who has been told to "bump the gain" without ever being shown what the gain is.

Starting from a single sensor, controller, and valve wired into a circle, this book builds the whole craft of PID control and loop tuning step by step. You will learn to describe any process in three numbers, take the controller apart one term at a time, and tune by hand, by software, and for rock-solid robustness, then put it all to work on the loops you actually meet. With more than seventy grayscale engineering illustrations, worked examples, and quick-reference tuning tables, it turns the theory of process control into reliable field practice.

What you will learn: read a process reaction curve and pull a model from it; master proportional, integral, and derivative action, and when to skip D; tune by Ziegler-Nichols, Cohen-Coon, lambda/IMC, and modern auto-tuners; match the method to the loop (flow, level, pressure, temperature, and pH); build cascade, ratio, feedforward, and override control; and diagnose oscillation, valve stiction, and the loops quietly left in manual.