SRD998 Intelligent Positioner

SRD998 Intelligent Positioner with HART Communication


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The intelligent positioner SRD998 is designed to operate pneumatic valve actuators and can be operated from control systems (e.g. the Foxboro I/A Series System and Foxboro Evo™), controllers or PC-based configuration and operation tools such as the FDT/DTMs VALcare™. The positioner is available with HART 7communication protocol.
The extra large multi-lingual full text graphical-LCD, in conjunction with the rotary selector, allows a comfortable and easy local configuration and operation. For installations in contact with explosive atmospheres certificates are available.

SRD998 Intelligent Positioner with HART Communication

  • Angle range up to 95 ° (up to 120 ° on request)
  • Mounting onto any linear or rotary actuator
  • Supply air pressure up to 10 bar (145 psig)


  • Auto-start with self-calibration
  • Self diagnostics, status- and diagnostic messages
  • DTM for valve diagnostics and predictive maintenance
  • Easy local operation with the rotary selector
  • Extra large multi-lingual full text graphical LCD
  • With HART 7 communication
  • Stroke 8 to 260 mm (0.3 to 10.2 in) with standard lever; larger stroke with special lever

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