Electropneumatic Smart Positioner SP500

The SP500 smart valve positioner is a loop powered devicethat is able to drive linear and quarter turn pneumatic valves.A 4-20 mA input signal determines the valve set point.

Precise control is maintained through valve position feedbackthat automatically varies the pneumatic output pressure toovercome the effects of stem friction and flow forces to maintaindesired valve position. Indication of valve position is providedthrough a continuous digital display of % travel. Valve positionfeedback is retrieved by means of a non contact technology basedon Hall effect. The pneumatics are based on piezovalve technology- Therefore, high resolution, high reliability, vibration insensitivityand extremely low air consumption is guaranteed at steady state.

The SP500 includes many smart functions that can be fullyprogrammed through menu driven software using an integralkeypad and LCD alphanumeric data. Valve commissioning issimplified through an autostroke routine and LCD data ofprogramming status, software travel switch status, mA input signaland valve diagnostics data. Moreover, the absence of mechanicallinkages between the valve stem and the positioner, drasticallysimplifies and reduces the time required for the mountingprocedure. The SP500 is supplied with a NAMUR standardmounting kit for attachment to yoke or pillar mounted actuators.For quarter turn valves, a mounting kit compliant to VDI/VDE 3845is supplied.

The SP500 smart valve positioner supports optional expansion toinclude the HART® communication protocol, enabling completeconfiguration using a PC or handheld device

This download includes all available size and material variations for the Spirax Sarco Electropneumatic Smart Positioner.