Saturday 20 April 2013

One hundred thousand sensors!

In February 2013, almost 9 years after introducing VEGAPULS 68, the first radar sensor for bulk solids, VEGA have delivered the 100,000th sensor.

"This production milestone carries forward the success story of radar level sensors in process automation. Today, they are the all-round level transmitter for liquids and bulk solids," commented Günter Kech, Managing Director (removed production milestone, as he says it in his comment?). "Radar technology is on a success trajectory and we will ensure that it stays there, by further simplifying the level measurement of bulk solids with radar in the future."

The 100,000th bulk solids radar instrument is a VEGAPULS SR68. The landmark sensor went to Bühler AG in Switzerland. This Swiss technology group is using it for level measurement in a 25-metre-high cement silo.

VEGA Grieshaber KG launched VEGAPULS 68, the first radar sensor specifically tailored to applications in the bulk solids industry, on the market in 2004. Compared to radar sensors for liquids, the bulk solids radar sensor is capable of detecting and measuring signals a 1,000 times smaller – signals that were previously masked by ‘noise’.

These handy two-wire sensors have since become ‘the’ alternative to maintenance-intensive mechanical ‘plumb bob’ systems, or ultrasonic sensors, which require an absolutely clear view to the product. Thanks to simple application parameters, only a few settings are necessary to fine-tune the radar sensor to the respective measuring task. The result is a measurement completely independent of dust, filling noise, strong air currents and high temperatures.

Three sensor variants ensure the advantages of radar technology for all kinds of applications, as well as measuring and temperature ranges. VEGAPULS 68 is optimized for measuring ranges up to 75 m and temperatures up to 400° C, while VEGAPULS 67 and VEGAPULS SR68 are designed for standard applications. One basic technology thus covers a wide application spectrum – from level measurement in clinker coolers at 1,500° C or in grain elevators, to level monitoring in rock crushers for mineral ore extraction.

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