The intelligent positioner SRD991 is designed to operate pneumatic valve actuators and can be operated from control systems (e.g. the Foxboro I/A Series System), controllers or PC-based configuration- and operation tools such as the FDT/DTMs VALcare™ or Valve Monitor. The positioner is available with different communication protocols. The multi-lingual full text graphical-LCD, in conjunction with the 3 push buttons, allows a comfortable and easy local configuration and operation. For installations in contact with explosive atmospheres, certificates are available.



• Auto-start with self-calibration

• Self diagnostics, status- and diagnostic messages

• Easy local operation with three key pads

• Multi-Lingual full text graphical LCD

• VALcare™ or Valve Monitor DTM for valve diagnostics and predictive maintenance