SKI-i SISTO Actual-position Feedback Unit

SISTO-SK-i feedback unit for valves

SISTO-SK-i is a smart actual-position feedback unit for valves with linear actuators. Valve position is indicated visually and clearly by means of cloured LEDs. User-friendly setting of limit positions by automatic initialisation on site or via the process control system. SISTO-SK-i continuously records valve travel and comprises a microcontroller-based analysing unit . Valve position is signalled optically ba the device LEDs and electrically via digital outputs. SISTO-SK-i is connected via an M12 plug connector and is ready for operation as soon as initialisation is complete. 


  • Open/closed position feedback
  • 4 LEDs for status and position indication
  • Compact design
  • Smooth surface - easy to clean
  • For mounting on linear valves
  • Digital output 24V
  • Continous valve travel recording via microcontroller
  • Binary fault output
  • Remote initialising possible
  • Pushbuttons for easy on-site operation


  • Integrated 3/2-way solenoid valve
  • stainless steel housing (1.4404)
  • Connections via AS interface



pdfDatasheet SISTO-SK-i
English - 2,44 MB - Ed. 8676.5/2-10