A practical introductory guide to the principles of process measurement and control. Written for those beginning a career in the instrumentation and control industry or those who need a refresher, the book will serve as a text or to supercede the mathematical treatment of control theory that will continue to be essential for a well-rounded understanding. The book will provide the reader with the ability to recognize problems concealed among a mass of data and provide minimal cost solutions, using available technology.Relay RL-1/2 Applied voltage N 3-phase supply To motor Figure 24.11: Motor control circuit. 2. One relay can drive anothera e.g., to start the motor, as shown. 3. Discrete logical conditions are present on components a e.g., the start and stopanbsp;...
|Title||:||Instrumentation Fundamentals for Process Control|
|Author||:||Douglas O de Sa|
|Publisher||:||CRC Press - 2001-07-09|