In the last 10 years there hasn't been such rapid development with any measuring principle as there has with radar, pioneers of this radar technology recognized very early on the advantages and application possibilities of radar technology for level measurement in the process industry.
In 1997, new standards in level measurement technology were set when the first two-wire radar sensor was developed and advanced within a very short time to international technology. It quickly became the market leader.
The pioneers of this technology have systematically developed the radar level gauge and revolutionized the radar market with the first intrinsically safe, two-wire instruments. These radar level sensors have proven their virtually unlimited application potential, as their high process reliability and compact size made them versatile level measurement instruments for all industries.
Today the issue of process optimization has a decisive influence on the selection of a sensor. The implemented process technology has a substantial effect on the efficiency of a pant, its consumption of raw materials, and not least the cost.
Until a few years ago only unsatisfactory solutions could be found for this continuous measurement of bulk solids. Ultrasonic sensors are seriously affected by strong dust generation, intense noise air currents during pneumatic filling. Sensors that have physical contact with the medium quickly reach their limits when used in abrasive media and electromechanical plumb line systems are subject to constant wear and frequent servicing.
In 2004 a reliable, continuous measuring system had been developed and introduced especially for bulk solids to solve the problem of unsatisfactory solutions for the bulk solids market. This radar level gauge has a measuring range up to 70 m, can handle temperature ranges up to 200 oC, and represented an immense advancement in level measurement of bulk solids and has since established itself solidly in the market.
In 2007, these very same pioneers of radar level gauge technology came up with the low cost radar sensor solution. This new radar device finds application in areas where, for reasons of economy, ultrasonic instruments were used until now. This sensor is the ideal solution for application in medium-sized silos up to 15 m high and thus covers the majority of standard applications in bulk solids. With these two radar solutions (designed to cover both short and long ranges), whatever the bulk solid, the readings provide for an efficient and transparent process.
In the last 10 years, level measurement with two-wire radar became accepted as a dependable standard technology. Their versatility and high reliability in liquids and bulk solids have made radar sensors the ideal solution for all industries and process conditions.
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