The positioner portfolio of the Industry Automation Division of Siemens has recently been supplemented by a rugged new device, the Sitrans VP300 positioner. Simple and easy to handle, the Sitrans VP300 is especially designed for use in the paper, mining and oil and gas industries, and was developed according to SIL (safety integrity level) guidelines. It is the first positioner on the market to feature SIL-certified partial stroke testing (PST).
Air exhausting in the single-acting device is SIL 2 rated. Both the single-acting and double-acting versions of the positioner feature aluminium housing with high protection IP66/NEMA 4x and are especially resistant to vibrations. The device can be used in applications down to minus 40 degrees Celsius and can even operate in damp air which is contaminated with oil or particles.
A rugged mechanical Opos interface connection can be used for fast and simple installation of the Sitrans VP300. Only two screws are required on the front of the positioner to attach it to the drive. The ‘blocking function’ enabled by the drive and installation set facilitates replacement of the positioner during operation.
Another new feature is the contact-free position detection which works according to the giant magneto-resistance (GMR) principle and makes the measurements particularly resistant to magnetic field and temperature fluctuations. Since only one magnet is required, installation is quick and easy as the Sitrans VP300 has a travel distance of up to 150 millimetres and can be rotated by up to 120 degrees.
About Siemens Southern Africa:
Siemens has had a presence in South Africa since 1860 when the company installed the first telegraph line linking Cape Town and Simon’s Town. Today, Siemens offers a balanced portfolio of technologies focusing on the Industry, Energy and Healthcare sectors, together with the cross-sector business of Siemens IT Solutions and Services. The unique ability to offer horizontal, customised, end-to-end technology solutions enables Siemens to keep its customers one-step ahead. As a committed corporate citizen, Siemens has active corporate social investment programmes as well as a comprehensive approach to local content, manpower development, skills and training. Further information is available on the Internet at www.siemens.co.za
The Siemens Industry Sector is the worldwide leading supplier of production, transportation, building and lighting technologies. With integrated automation technologies as well as comprehensive industry-specific solutions, Siemens increases the productivity, efficiency and flexibility of its customers in the fields of industry and infrastructure. The Sector consists of six Divisions: Building Technologies, Drive Technologies, Industry Automation, Industry Solutions, Mobility and Osram. With around 222,000 employees worldwide Siemens Industry posted a profit of EUR3.86 billion with revenues totaling EUR38 billion. www.siemens.com/industry.