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FLOW & LEVEL CONTROL DEDICATED HYGIENE FEATURES


To meet the need for highly accurate and reliable level measurement in hygienic applications, Emerson has developed the


Rosemount 1408H Level Transmitter, said to be the world’s first non- contacting radar device designed specifically for the food and beverage industry. Dedicated features include a hygienic compact design, fast sweep technology,


exceptional radar beam focusing and IO-Link


communications, helping manufacturers to optimise the efficiency of their operations, reduce product losses and ensure food safety.


Non-contacting radar is an ideal level measurement technology for applications that require stringent hygienic facilities and equipment. It is virtually maintenance-free, which helps it to ensure long-term reliability, in contrast to legacy technologies. It has a top-down installation that reduces the risk of product loss through leakage, and it is unaffected by process conditions such as density, viscosity, temperature and pH. The compact and robust form of the Rosemount 1408H makes it a suitable solution for the small tanks and space- constrained skids commonly used in food and beverage production. The hygienic antenna is flush with the process connection, so ensures the removal of process residue during clean-in-place and sterilise-in-place processes, and is insensitive to condensation and build-up. The hygienically approved, IP69-rated device has a stainless steel housing with minimal crevices to withstand external washdowns and ensure cleanability.


The Rosemount 1408H is the first level transmitter to use 80 GHz frequency modulated continuous wave technology on a single electronic chip with embedded smart algorithms. This enables exceptional radar beam focusing, so that internal tank obstructions such as agitators can be avoided, and greater measurement accuracy achieved. Fast sweep technology is said to make the transmitter the quickest level


measurement technology on the market, collecting up to 40 times more information than legacy transmitters. This increases


measurement accuracy, enabling


manufacturers to reduce the amount of product lost


through wastage, maximise


production capability, and reduce production variations, leading to increased product quality and batch consistency. The technology also enables


measurements all the way to the top of the tank, eliminating radar dead- zones and enabling users to maximise vessel utilisation. The non-contacting radar transmitter has connectivity to the IO-Link communication protocol, making it easy to integrate with any automation


system. It provides both


conventional 4-20 mA, switch outputs and digital high-speed communication. The transmitter features innovative technology and smart algorithms to ensure installation and commissioning are made easy, saving time and helping ensure trouble-free operation. It can be used with the new Rosemount IO-Link Assistant software, which sets the parameters via IO-Link.


“The Rosemount 1408H is the latest addition to Emerson’s range of measurement devices designed with the requirements of hygienic applications in mind,” said Melissa Stiegler, hygienic business director for Emerson’s Measurement Solutions business. “By meeting the strict safety requirements of the food and beverage industry, this level transmitter minimises contamination risk, while its accuracy and reliability ensures the production of consistent, high-quality products that consumers expect, providing a compact and cost-effective alternative to legacy technologies.”


Testament to its innovative design, the Rosemount 1408H has received the 2021 Red Dot Award for product design which recognises those products that demonstrate outstanding design and innovation.


Emerson.com/Rosemount1408H 18 JULY/AUGUST 2021 | PROCESS & CONTROL


OVERCOMING REFLECTIVE ISSUES BOOSTS ACCURACY


Overcoming the challenges associated with developing a bespoke canning machine has been an important achievement for a small microbrewery in Gloucestershire and a critical factor in improving productivity levels. Established in 2015, the TAP Brewery in Rendcomb near Cirencester has been developing brewing techniques using only the finest locally produced malts resulting in a range of cask, keg and canned beers sold mainly to local pubs and retail outlets. Among the popular brews are Bostin Hoppy, Newted and Iris. BAUMER has been pivotal in helping the TAP


Brewery by supplying the LBFS Level Sensor and IFRM inductive proximity sensors for the canning machine. Co-Director Tim Hobbs said:, “Microbreweries like ours are not producing the high volumes which justify the expense of sophisticated canning machines, so usually opt for barrels and bottles. Now the big thing for us is we can handle around 300 cans per hour and the performance of the Baumer sensors are essential components in the success of our canning machine.” Hobbs explained that the company was


determined to develop an effective canning machine because of concerns of a high carbon footprint associated with the bottling process. He commented: “Cans are much better for the environment, and are easier to pack and transport, so we gave ourselves a challenge to design and build a system where we could filter, carbonate and can beer, on a relatively small budget.” Their first canning machine relied on optical sensors


to detect foam in the can and they quickly realised this was not an effective or robust enough option and fill levels could not be relied upon. Also the sensor counting the cans was a photoelectric optical eye sensor and due to its shiny, reflective nature, the aluminium would give false or multiple readings. These issues were resolved once the Baumer


sensors were installed with the LBFS sensor providing accurate and repeatable fill levels regardless of the presence of foam, meaning that the cans did not need to be manually wiped. Secondly, the IFRM proximity sensor overcame


the reflective issues of the aluminium cans, providing the required levels of accuracy and repeatability. Hobbs confirmed that the success of the canning


machine project was a real in-house team effort with design and manufacture down to himself and his brother Pete Hobbs, along with Oliver Ursell’s electronic wizardry. “We received great customer service and technical help from Baumer even though we are a small microbrewer. They gave us good advice from the concept of the canning machine, right through to completion, even visiting us to advise, nothing was too much trouble.” Even though a Baumer 9701 Flex Programmer was


an added cost they soon appreciated that when combined with the LBFS sensors, it was much more versatile and meant they could adjust the foam sensing range without having to carry out a sample test, unlike other sensors on the market. www.baumer.com/gb/en/


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