The SIPART ® PS2 electro-pneumatic valve positioner is used to control the final control element of pneumatic linear or part-turn valve actuators. The valve positioner moves the actuator to a valve position corresponding to the setpoint. Additional function inputs are used to block the valve or to set a safety position. A binary input is present as standard in the basic device for this purpose.
The SIPART PS2 smart valve positioner features significant advantages, such as: only one device version for linear and part-turn valve actuators; simple operation and programming using three keys and a two-line LCD; automatic startup function with self-adjustment of zero and span; manual operation without additional equipment; minimal air consumption; and a programmable “tight shut-off function”.
Image credit: Siemens Process Instrumentation