SIEMENS Positioner | SIEMENS SIPART PS2 Positioner

The SIPART PS2 is the most widely used valve positioner for linear and part-turn actuators in industrial applications. The all-round positioner of Siemens provides an extensive range of functions and is well equipped – even for extreme ambient conditions. The following enclosure options are available: Polycarbonate, Aluminum, Stainless steel, Flameproof aluminum or 316L stainless steel.

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Description

Benefits

  • High reliability and product lifetime thanks to robust enclosures and modular design
  • Easy mounting, wiring and calibration for all common types of valves
  • Intelligent diagnostic features (Partial Stroke Test, Fail-in-Place function, Valve Signature, Integrated Pressure Sensors …) for higher plant availability and process security
  • Up to 95% lower operating costs due to extreme minimal compressed air consumption

Technical Details

Communication 4 … 20 mA, HART 7, Profibus PA, FOUNDATION Fieldbus
Range of stroke 3 to 130 mm (larger strokes on request)
Angle of rotation range 30° to 100° (optional 180°)
Ambient temperature -30 °C to +80 °C (optional -40°C)
Required air quality Class 3 to ISO 8573-1
Max. air consumption in the controlled state 0,01 Nm³/h (0.006 scfm)
Limit values 2 (electronic, mechanical or capacitive)
Digital input / digital output 2 DI / 3 DO
Degree of protection IP66, NEMA 4x
Explosion protection ATEX, IECEx: Ex i, Ex e, EX t, Ex d
FM, CSA: IS, NI/I/2, DIP, XP
Certificates  Various global certificates and marine approvals

Remote variants

1.  Valve positioner with remote position detection

Prepared for extreme applications: The SIPART PS2 valve positioner with a separate remote position detection can be used for valves at difficult accessible locations or for particularly critical process conditions, such as extreme vibrations or temperatures, dust or water influences. The following external position detection systems can be distinguished:
1.1 External position detection system with non-contacting sensor (NCS)

  • High distance between sensor and electronics is possible
  • Suitable for applications with extreme dust or water influences (can also be used under water)


1.2 External position detection system with robust housing

  • High degree of protection due to very robust aluminum housing
  • Suitable for applications with extreme temperature influences and permanent vibrations

2. Valve positioner with remote control electronics

Special protection in radiation-polluting applications: Control electronics require special protection in environmental conditions with high-energy radiation. The SIPART PS2 valve positioner provides the option for separate, remote control electronics that are fitted in a control cabinet, whereas the position detection system and the pneumatic unit remain on the valve.

  • Easier access to control electronics through control cabinet
  • Distance between control electronics and valve can be up to one kilometer

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