Since its publication 10 years ago, engineers, executives, sales representatives, managers, and financial personnel new to process control have relied on the 1st Edition of this book for a basic understanding of process control and instrumentation principles and applications. This 2nd Edition still covers those topics, but it also introduces new topics and discusses recent developments in the field of process control. Each chapter has been thoroughly updated and a new chapter on fuzzy logic has been added. However, the book's basic goal has not been changed: the elements of process control are described simply and with examples so that even a non-technical person can understand the essential principles. Contents: Who Should Read This Book? What is Meant By a Process? How Instruments Work Together How Measurements Are Made How Controllers Control How Fuzzy Logic Controllers Control How Final Control Elements Function How Logic Control is Performed The Company Hierarchy of Control External Influences on Instrumentation Incidental Hardware Design and Selection of Instruments and Systems Engineering Considerations Managerial Considerations.