PROCESS INSTRUMENTATION introduces the key elements of modern process control, and prepares you for a career as a process technician in the chemical processing industry. Using a step-by-step approach, the book begins with an overview of industry symbols and diagrams, instruments, equipment, systems, and technology, as well as the fundamental concepts of pressure, temperature, level, flow, and compositional variables, and how they apply to a control loop and various methods used in process control. Clear objectives in every chapter take you from tracing and drawing simple process flow diagrams (PFD) to eventually reading, sketching, and troubleshooting an operating unit on your own using a piping and instrumentation drawing (P &ID). Written from the unique perspective of the process technician rather than an instructor, PROCESS INSTRUMENTATION helps you identify and internalize your roles and responsibilities in process control, giving you a head start on your future.