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13.06.2023  |  561x
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Contact-free radar solution for water treatment slurry

Continuous level measurement technology from UWT was installed for the upgrade of the wastewater system of a company in the food manufacturing industry in Colombia.
Together with the local partner INTAI INGENIERIA S.A.S. several on-site tests were carried out and a non-contact solution was preferred. Chemical and disinfectant substances require chemical resistance and a robust design.

Accurate and fast level measurement

The manufacturer of various dairy products needed a reliable solution to control medium solid waste from the plant’s effluent treatment process. The concrete tanks are 4 meters long and the material has the consistency of sludge with a DK value of 4. The pressure is in the range of 0.8 bar (11.6 psi) up to 5 bar (73 psi). There is no electrostatic charge. The process temperatures reach up to 80 °C (176 °F). Within the process hoppers there is a high degree of moisture and some build up. Accuracy as well as a quick response time were especially relevant to the process.

High frequency signal

Finally, the NivoRadar® 7100 was implemented into the wastewater treatment system. The certified sensors were configured using suitable manufacturing materials in accordance with the high hygienic requirements and safety levels. A high frequency signal is transmitted with a very small beam angle with two-wire technology. The signal is reflected by the slurry material and received back to the sensor. The frequency difference, which is directly proportional to the distance, is then further processed and output as the level signal. The sensor is ideal for use in water treatment tanks and, due to its design, is also suitable for acids and alkalis. It would even be possible for measurement to be made through the tank top of plastic containers.

Quick and easy installation

The plant operator in Colombia was very pleased about the quick and easy installation of the non-contact NivoRadar® devices. With the PVDF wetted parts and high accuracy of +/-2 mm reliable measuring results are realized. It works smoothly in the demanding measurement conditions and suits also to the outdoor environments as it has ingress protection IP66/ IP67/ IP68. The sensors offer the manufacturer also an attractive price and are maintenance-free.

Company information

UWT GmbH
UWT GmbH
The UWT has become one of the leading suppliers of measurement technology on the world market today for the level detection in silos and tanks for material manufacturing processes. When UWT started, almost 40 years ago, with the development of ingenious products. UWT supply level limit and content measurement sensors for bulk solids and liquids. A company reaches such a position only if the following key elements interact: Sound management, good understanding of the needs of the markets, innovative product solutions, skillful investment and above all, committed and dedicated employees. Different measurement techniques are used within a variety of industries depending on the medium and application in question.UWT products represent quality, flexibility and reliability in over 90 countries across the world. Having successfully solved over 1 mio. applications within the bulk solids sector, UWT has expanded still further by introducing a new and innovative product range for the liquids market which is delivering reliable solutions for applications in this area. The company is certified ISO 9001:2015 and constantly expands its portfolio of product certifications (ATEX, EHEDG, FM, CSA, INMETRO, etc.) particularly with regard to the international markets. The development, production and sales departments are located at our headquarters in Germany, with a further production site in Malta. UWT has also established successful sales offices in the USA, UK, China, India, Brazil and most recently Mexico. With this global orientation, it is possible to serve and support customers with complete competence and flexibility. From development through production to final assembly and comprehensive technical advice, UWT can offer a complete service from a single source. The strongly held belief by the CEO`s Uwe Niekrawietz, Markus Schalk and Andreas Haug is for the welfare of over 200 employees world-wide: „Healthy and happy employees can make the unbelievable happen“. Our portfolio includes sensors for liquids: * Capanivo® 7000/8000 - capacitive sensors * RFnivo® 8000 - capacitive sensors * NivoCapa® 8000 - capacitive sensors * NivoGuide® 8000 - TDR guided radar * NivoRadar® 7000 - non contact radar sensor Sensors for bulk solids: * Rotonivo® - rotary paddle * Vibranivo® - vibrating fork * Mononivo® vibrating rod * Capanivo® 4000 - capacitive sensors * RFnivo® 3000 - capacitive sensors * NivoBob® 3000/4000 - electromechanical lot system * NivoRadar® 3000/4000 - contact free radar sensor * NivoGuide® 3000 - guided radar sensor (TDR) NivoTec® - visualisation systems
Last update: 02.05.2024

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Trade show Powtech 2023
Take advantage of the overall dynamics offered by POWTECH, the leading exhibition for experts in powder and bulk solids technology. This event provides a presentation platform for innovations and advancements in processes for the manufacture of quality products made and processed from powder, granules, bulk solids and liquids – also for the environmental and recycling sector. Good reasons for visiting 1. 360° View of mechanical Processing Technologies A picture is worth a thousand words. So choose the 360° panoramic view of the entire process chain of processing technologies and discuss the leading-edge developments in analysis, size reduction, screening, mixing, conveying, dosing and compacting with the industry’s top experts. Whether energy efficiency, sustainability, careful handling or process optimization, POWTECH 2022 as the world’s undisputed number one puts the focus on innovations that will change mechanical processing technology. 2. Clear Focus on Powder and Bulk Solids technology As an international exhibition, POWTECH reflects the trends in the industry through its exclusive focus on mechanical processing technologies – for the benefit of exhibitors and visitors. The compact event gives you easy access to the leading suppliers of basic processing technologies for powder and bulk solids, plant engineering and processing components, equipment for measurement, control and automation, products for nanoparticle technology, safety and environmental technology, plus services for mechanical processing technologies. 3. The perfect stage for work, dialogue and new contacts POWTECH is far more than just a trade exhibition. It is a stage for working and discussing and the exchange of ideas between engineers prepares the ground for valuable new contacts and business relationships. But POWTECH is also the perfect stage for newcomers: As in the past years, young innovative companies show their new product and process developments in the ”innovation made in Germany pavilion”. 4. Inspiration for tomorrow’s Processing Technologies Meetings, deadlines and pressure of costs. Do you often have no scope for creativity during your daily work? POWTECH 2022 is guaranteed to inspire you with its presentation of pioneering innovations. The accompanying programme shows you the latest trends and product developments in the fields of explosion protection, easy-to-clean solutions or cleanrooms. 5. POWTECH – the Industry Barometer Figures are worth a thousand words. 823 exhibitors from 29 countries, over 14,100 trade visitors; the figures for 2019 impressively show the importance of POWTECH for almost all branches of industry, and especially chemicals, pharmaceuticals, metal and food. All the forecasts indicate that value creation in the processing technology segment will carry on growing, so be there in 2022 when the crème de la crème discuss the latest product innovations.
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