Category: Industry News

The OFR flow sensor by NIVUS GmbH was approved for use in Ex-Zone 1 by TÜV Nord. In addition to ATEX approval required mainly in Europe the company was approved according to IECEx standard which is preferably demanded in English-speaking countries.

This allows contactless flow measurements in many applications including sewers. In order to obtain the Ex approvals a new sensor material was used and the sensor dimensions have been slightly modified. A non-Ex version of the radar sensor continues to remain available.

The flow sensor features IP 68 protection and thus is suitable for use particularly in harsh environments. In addition to the radar sensor NIVUS provide a modular holder bracket made of stainless steel for easy installation. The basic module enables mounting of the radar sensor. An extension allows installation of an extra IP 68 level sensor. Moreover the manufacturer provides an optional casing which covers both sensors in a compact enclosure.

Due to low space requirements the compact housing is suitable for installation even in cramped places or in locations where access is difficult. The contactless measurement and the compact construction of the radar system allow installation without the need to shut down processes.

Flow metering using radar sensors is suitable particularly for applications conducting aggressive or abrasive media. Another feature of the radar measurement system is the use in applications with shooting discharge and low flow levels.

https://www.chromatographytoday.com/news/water-wastewater/9/nivus-gmbh/flow-metering-using-radar-for-ex-zone-1/41747

Introducing the new NivuFlow 7550 from Nivus GmbH, the measurement systems manufacturer from now on provides a hybrid metering system for flow rate detection besides measurement systems based on ultrasound and radar technology. In addition to flow velocity determination using radar the transmitter is designed to detect velocities by using the ultrasonic cross correlation method. So the complete measurement system is equipped with two flow velocity sensors, one level sensor and the NivuFlow 7550 hybrid transmitter.

Depending on the sensor installation position and the filling level there are two basic applications for hybrid metering: hybrid metering as measurement range extension (e.g. impounding in canals) to make sure the measurement covers the entire range and hybrid metering as redundant systems to increase accuracy.

The hybrid measurement system benefits from the advantages of both technologies. Thanks to the ultrasonic cross correlation method the velocities are measured in various flow levels. This not only enables to map the flow profile but also to increase the accuracy of the entire system. The radar sensor is installed outside of or above the medium and hence is ideally suited for applications featuring sedimentation. Measuring the surface velocity using radar moreover helps to increase the determination of the hydraulic model prevailing.

Upon request the complete system is also available for use in Ex zone 1.

The compact transmitter design permits easy and space-saving installation in control cabinets using DIN rails. A field enclosure is available for outdoor use.

The graphic display and the transmitter’s intuitive operating concept allow quick and easy commissioning of the flow measurement system. Thanks to extended diagnostic options running processes can be analysed professionally directly on site. Flow rates are calculated based on latest fluid-dynamical models. Furthermore the unit provides remote maintenance options via Internet.

https://www.chromatographytoday.com/news/water-wastewater/9/nivus-gmbh/hybrid-metering-system-for-flow-rate-detection/42367

Introducing the NivuFlow 550 NIVUS present an easy-to-operate flow metering transmitter

The new transmitter in combination with a radar sensor enables contactless flow measurement in open channels and part filled pipes. To accurately detect and to compute flow rates NIVUS have developed new dynamic hydraulic models. These models have been created for the widest range of canal shapes based on alternating filling levels.

Upon request the system is also available for use in Ex zone 1.

The compact transmitter design permits easy and space-saving installation in control cabinets using DIN rails. A weatherproof cover for outdoor use is available even in IP 68.

The graphic display and the intuitive operating concept of the NivuFlow 550 allow quick and easy commissioning of the flow measurement system. Thanks to extended diagnostic options running processes can be analyzed professionally directly on site. Furthermore the unit provides remote maintenance options via Internet.

Flow metering using the radar sensor is suitable mainly for applications featuring aggressive or abrasive media. Moreover the radar measurement system is ideal for applications with sedimentation since the radar sensor is fastened outside of or above the medium. Furthermore NivuFlow 550 stands out for the use even in applications with shooting discharge and low flow levels.

https://www.chromatographytoday.com/news/flow-level-pressure/12/nivus-gmbh/new-radar-transmitter/43523

After winning the regional heat at Severn Trent’s Headquarters back in September the manufacturer of high accurate flow measurement systems wins the national UK Innovation Award with their Cross Correlation Pipe Sensor. The NIVUS team picked up its award at the Future Water Association’s annual lunch which was held at the Pump Rooms in Leamington Spa on 23rd February 2017.

The award winning flow sensor measures the flow directly within the pipe which is far superior to regular Clamp-On-Systems which can only measure from the outside. Why go to the concert and only listen behind the door?  Nivus advanced  technology and superior signal quality equals more reliable measurement results. Considered a game changer the NIVUS solution proves to be smart. Benefits are numerous, easy installation without shutting down the flow is distinctly advantageous as well as delivering a low carbon footprint.

The judges were impressed by the unique flow sensing technology developed by NIVUS which creates an audio image of particles within the wastewater to increase the flow measurement accuracy. Furthermore they gave recognition for the easy installation which allows the insertion/removal without the need for ‘pipe shutdown’ as well as delivering the Totex based solution for the application favorably compared to existing flow measurement devices. And not least the judges also commended Alison Southwood and David Miles for a strong presentation clearly defining the business case.

David Miles, Business Manager for NIVUS in the UK explains the importance of winning this award, “This recognition for our Cross Correlation Pipe Sensor comes at an exciting time for NIVUS as we are seeing some fantastic results on sites throughout the UK on both fresh and waste water systems. Combining our technology with existing applications is proving highly successful as for the first there is now a method for achieving a true and accurate measurement of flow”

NIVUS UK Innovation Manager, Alison Southwood, convinced the audience with the advantages of the pipe sensor solution. She states, “Winning the Innovation Award is a reward for all the efforts we put in developing the high accurate and easy to handle measurement system. Now we are looking forward to using this valuable endorsement to promote the advantages of our smart flow measurement solution to a wider audience.”

https://www.chromatographytoday.com/news/water-wastewater/9/nivus-gmbh/nivus-wins-water-dragon-award-2016/42505