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Robust speed sensor for conveyor belts in the primary industry


A new, compact, medium-resolution, belt speed sensor from the Siemens Industry Automation Division is suitable for any industrial application with belt-driven conveyor pulleys, for example in the primary industry. The lightweight, yet durable Sitrans WS100 is suitable in applications from -40 to +110 degrees Celsius (-40 to 164 degrees Fahrenheit). Typical applications include the mineral processing industry, in particular quarries or cement plants, with belt speeds up to 2 meters per second (392 feet per minute). The new sensor monitors the belt speed for input to an integrator, which calculates flow rate, total weight, belt load, and speed of bulk materials. Sitrans WS100 can be combined with a Milltronics BW100 or BW500 integrator or Siwarex FTC PLC module, and a Milltronics belt scale for a complete weighing system.

Sitrans WS100 offers ease of installation through magnetic mounting no modifications needed. The magnetic holding force is up to 68 kilogram (150 pounds). Constructed of polypropylene with type 304 (1.4301) stainless steel sensor mount and cover, Sitrans WS100 includes corrosion resistant components that are robust and virtually maintenance-free. Additionally, the rotating targets are fully sealed ensuring safe operation. Sitrans WS100 is available in standard and Intrinsically Safe (IS) versions and is Nema 4/IP65 rated.

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The Siemens Industry Sector (Erlangen, Germany) 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 in fiscal year 2008 a profit of EUR3.86 billion with revenues totalling EUR38 billion.

The Siemens Industry Automation Division (Nuremberg, Germany) is a worldwide leader in the fields of automation systems, low-voltage switchgear and industrial software. Its portfolio ranges from standard products for the manufacturing and process industries to solutions for whole industrial sectors that encompass the automation of entire automobile production facilities and chemical plants. As a leading software supplier, Industry Automation optimizes the entire value added chain of manufacturers from product design and development to production, sales and a wide range of maintenance services. With around 42,900 employees worldwide Siemens Industry Automation achieved in fiscal year 2008 total sales of EUR8.7 billion.


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