Level Measurement & Control


Advanced level management: new FMCW radar measuring device reliably determines the leevl in solids applications

August 2008 Level Measurement & Control

While in the past, solid silos and stock have generally been monitored using simple limit switches, continuous measuring systems are now increasingly in demand. In many industries this has made more accurate management of raw materials possible, which ultimately leads to lower storage costs.

For applications in the bulk goods industry, Krohne has developed a reliable solution for measuring supplies of powders and bulk goods. The new frequency modulated continuous wave (FMCW) radar measuring device, OPTIWAVE 6300C, is based on more than 20 years of experience and incorporates a special antenna designed to detect the typically uneven surfaces in silos. The wide dynamic range, excellent antenna efficiency and the FMCW principle ensure simple installation and eliminate the need for special equipment to align the antennas.

Dust and deposits do not affect the measurements as the new drop antennas do not allow anything to adhere to them. They also feature an outstanding directional receiving pattern (2° angle of reflected beam). And since measurement is non-contact, maintenance expenditures are extremely low.

Users can choose from several materials, antenna sizes and antenna materials. The drop antenna with its ellipsoidal shape is available in sizes DN 80 (material: PP or PTFE) and DN 150 (material: PP). The stainless steel variant is available in sizes DN 40 to DN 150). Depending on the material, application temperatures of up to 200°C and pressures of up to 40 bar are possible.

Reliable level measurement is achievable in silos with heights up to 80 metres
Reliable level measurement is achievable in silos with heights up to 80 metres

The new OPTIWAVE 6300 C level measuring device can be used anywhere that users require maintenance-free and reliable level determination. For example, silos, hoppers, storage containers or conveyor belts in the cement industry, in mining, in the iron and steel industry, the chemical industry or in the paper industry and in power plants.

For more information contact Mahendra Rajcoomar, Krohne South Africa, +27 (0)11 314 1391, [email protected], www.krohne.com



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