From Food processing to Waste Water Treatment
A case study in Al Rawabi Dairy company
Learning how to use each and every manufacturer’s field communicator has always been a painful task in the industry. Using a simple smartphone to configure and access sensor parameters is a clear benefit for a maintenance team ; facilitating the easy transfer of knowledge, saving time and money.
Additionally, apart from being a continuous measuring instrument, these pressure transmitters are available with two configurable switches for alarming or control.
The state of the switches are visible on the illuminated ring provided around the large well-lit display of the VEGABAR 38. Operators can easily understand if the tank is empty or full, in just a glimpse.
Against a backdrop of 60 years of experience in level and pressure measurement, VEGA's sensor portfolio stands for maximum process reliability and plant availability.
With its new compact series of VEGABAR pressure sensors and VEGAPOINT level switches, the instrumentation specialist has now advanced to full-range supplier for all applications in food production. These lower-priced instruments are aimed at standard applications in automation – and designed to precisely meet the latest requirements of the industry
Related products
The convenience and reliability of the devices from VEGA were also standardized into the diary plant’s waste water treatment facility. With such feature packed and highly reliable transmitters, Al Rawabi Dairy company agreed to install another transmitter from VEGA’s last product release: a Radar sensor for level measurement - to replace failing ultrasonic level transmitters.
A State of the Art technology to overcome unreliable measurement of the Diary Waste-water Treatment.
Radar technology has undergone tremendous development in recent decades. While radar sensors were used mainly by the military in the past, today they are used in everyday applications, even in homes. Typical examples are motion detectors for door openers and complex distance sensors in vehicles. At the same time, radar technology has taken a giant leap forward in industrial applications, for level measurement in particular – notwithstanding that this requires significantly higher signal sensitivity.
Radar is the better ultrasonic!
The 80-GHz Radar series offers a number of additional advantages compare to ultrasonic sensors. One of the most important is undoubtedly its independence from external conditions – the radar sensor is just as unaffected by temperature fluctuations, vacuum or high pressures as it is by dirt and contamination. As a result, the level sensors are virtually wear and maintenance free and remain in service for many years.
A good example in the diary plant is the treatment of the waste water.
There, the level measurement can easily become tedious, mostly because of the foam.
To measure the level, the wide basin was equipped with an ultrasonic sensor. But the reliability issues due to condensation, foam and ambient conditions like temperature were easily observable. Hydrostatic sensors were also tested, but required frequent cleaning due to the heavy sludge that collects at the bottom.
The VEGAPULS C21, a compact IP68 Radar with the latest 80 GHz high-frequency, was installed in this challenging application.
Plant operators could immediately see the difference with stable readings. From switching over from traditional ultrasonic technology that dominated the norms for years to the latest 80 GHz Radar, every customer could benefit from having no limitations or maintenance that they otherwise were bound to.
Radar sensors with 80-GHz technology have been opening up new applications in level measurement every day for five years already. It represents a real alternative to ultrasonic technology.
See more applications with radar
Coarse and fine screens
Differential water level measurement for control of screen raking
Mechanical cleaning removes entrained floating matter with screens or sieves. This protects the downstream process stages from buildup, clogging and abrasion. Solids with diameters greater than 25 mm are trapped in the coarse screens, compressed in a press and then disposed of. Finer secondary screens remove smaller residual materials. Measurement of the difference in water level between the front and the back of the screen determines the degree of contamination and initiates the cleaning of the screen when necessary.
Reliable
Reliable control of screen cleaning
Cost effective
Non-contact and wear-free measurement
User friendly
Maintenance-free operation of the system
Pumping station
Level control in a pumping station
Wastewater from households and businesses, together with surface water, is carried to the wastewater treatment plant via an extensive sewer network. If the natural gradient is not steep enough, numerous pumping stations are required to create a sufficient height difference. The level measurement in the inlet shaft is used for cost-effective control of the pumps.
Reliable
Reliable measurement of the level
Cost effective
Pump switching ensures optimal operating times
User friendly
Maintenance-free, trouble-free operation
Sludge receiving station
Sludge receiving station Level measurement
Sewage sludge from small decentralized sewage treatment plants or sewer cleaning operations is delivered in special vehicles. It is collected in a receiving tank and then gradually fed into the main sewage treatment plant for processing. Continuous level measurement determines the content of the receiving tank and controls the input to the plant.
Reliable
Reliable content measurement under all operating conditions
Cost effective
Simple installation in existing facilities
User friendly
Maintenance-free operation even when heavily soiled
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