Digital Valve Controller

Introduction to Process Control

•Control valve: The controller output p(t) in this case is a DC current signal that is sent to the control valve to adjust the valve stem position, which in turn affects flow rate w 2 (t). •Because many control valves are pneumatic, i.e., are operated by air pressure, the controller output signal may have to be converted to an

  Controller, Valves

Cerabar M PMC51, PMP51, PMP55 (Technische Information)

TI00436P/00/EN/19.14 Products Solutions Services No. 71260300 Technical Information Cerabar M PMC51, PMP51, PMP55 Process pressure measurement Pressure …