Technology firm Siemens' process instrumentation division has developed new products as part of its automation systems offering, which include the new Sitrans FX300 vortex flow meter series, while the company has also added new Profibus PA interfaces to the Sitrans LR250 and Sitrans LR460 radar level transmitters.
The Sitrans FX300 is a combined vortex flow meter for steam, gas, and liquids, and is equipped with a pressure and temperature sensor.
The new two-wire Sitrans FX300 flow meter, with Hart communication, is specially designed for applications requiring reliable flow measurement independent of pressure, temperature, viscosity, and density.
These applications include the measurement of steam and saturated steam, monitoring of steam boilers, control of compressor outputs, consumption measurement in compressed air systems, measurement of industrial gases, burner consumption measurement, and session initiation protocol processes in the food and beverages, and pharmaceuticals industries.
The Sitrans FX300 flow meter is characterised by high accuracy and reliability, and its sensors are fully welded and do not require wear-prone internal gaskets. The operating temperature of the flow meter ranges between -40o C and 240o C.
In the case of steam and gas with flow rates from 2 m/s to 80 m/s, the accuracy of the flow meter is 1%, and in the case of flowing liquids flowing at rates between 0,4 m/s and 10 m/s, it is 0,75%. The normal diameter range is from DN15 to DN300.
The company states that the Sitrans FX vortex flow meters function according to the vortex measuring principle, which involves detecting the frequency at which alternating vortices are shed from a buff body hit by the medium.
The vortices create a force that moves in proportion to the volume of flow, while a sensor with a dual-piezoelectric crystal mounted in the wing detects the oscillations precisely, and transmits this information to the FX electronics for analysis.
Further, the company's automation and drives division has added Profibus PA interfaces to the Sitrans LR250 and Sitrans LR460 radar level transmitters, which allow for a more flexible approach to diagnostic management.
The company states that the new interfaces provide substantial cost savings through preventative maintenance, as well as reporting information to improve plant efficiency.
The radar level transmitters conform to the Profibus Profile version 3,01, class B standard, and allows users to prioritise status information between maintenance and operator stations. The profile standard allows interchangeability between other Profile version 3, class B level devices.
With its quick configuration and easy installation, the compact plug-and-play 25-GHz two-wire device, the Sitrans LR250 radar transmitter is an efficient alternative, since it can measure the level of liquids or slurries accurately within millimetres. These quickstart menus are also found on the LR260, two-wire 25-GHz solids radar, as well as on the LR460 100 m four-wire solids radar.
The transmitter can be used in general applications, but is also suitable for chemicals, pharmaceutical and hydrocarbon processing applications, including corrosive environments.
The Sitrans LR460 is a continuous radar level transmitter, featuring 24 GHz frequency-modulated wave technology and process intelligence echo processing. This transmitter is designed for difficult solids applications, including those with extreme dust, high temperatures, and long ranges up to 100 m.
The company adds that virtually any solid medium can be measured, including cement powder, flyash, coal, gypsum, flour, grain, aggregates, and plastics.
Meanwhile, Siemens process instrumentation and analytics divisional manager Ryan Chetty says that the company hosted a process instrumentation conference at the end of July, featuring Canadian speaker Vijay Acharya, as well as Siemens international area manager, Sylvia Scherer.
Chetty states that the conference focused on the company's involvement in the South African instrumentation market, especially in the petrochemicals and mining industries.
"Siemens is the fastest-growing instrumentation company in the world, and offers the largest integrated product portfolio line for automation applications," says Chetty.
He adds that the company's two most important acquisitions have been the acquisition of Canadian company Milltronics, as well as Danish flow company Danfoss, whose products are now integrated with the Siemens product line and enables the company to offer a complete range of solutions to its customers.
Siemens imports its process instrumentation products from several multinational production facilities across the world. Chetty explains that its level products are manufactured in Canada, its pressure components in France, its weighing equipment in Germany, and its flow products in Denmark.
All Siemens products undergo a comprehensive triple testing process, and customer training is provided on site at different locations in South Africa. The company also engages in partner programmes with approved companies that are responsible for the distribution of its products.