Water / Wastewater 35 Hybrid Flow Metering System


Introducing the new NivuFlow 7550 from Nivus, the measurement systems manufacturer henceforth from now on provides a hybrid metering system for flow rate detection combined with a measurement system 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.


New and Non-Contact Flow Measurement using Radar Technology


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42347pr@reply-direct.com Ideal Choice for Groundwater Measurement


Introducing the new cost-effective TD-Diver from Van Essen from Bell Flow Systems. The TD-Diver replaces the Mini-Diver with a new improved design. The enclosure has been redesigned to optimise the protection of the pressure sensor and electronics and by making the TD-Diver heavier than its predecessor, users will experience a simpler and smoother deployment down a bore-hole.


The new Diver benefits from an increased corrosion resistance by additional surface treatment of the housing, easy connection with SDI-12 Modbus protocols, an internal working memory of 72,000 measurements per parameter and efficient electronics allowing two times more samples without compromising the battery life.


A choice of data logging methods can be selected with the improved level logger including continuous memory or fixed length memory depending on the user’s preferences. The TD-Diver features a quicker processor, making the user spend less time waiting for the data to be retrieved. This accurate and reliable logger can be also used with all existing Diver accessories.


Suitable for various applications including the groundwater monitoring, long term water level monitoring, watershed, drainage basin and recharge areas, stream gauging, lake levels and reservoirs, wetlands and storm water monitoring.


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ATi Joins Forces with Langham and Caption Data for ‘Better Control’ in Water Networks


Langham Industrial Controls Ltd (LIC), ATi and Caption Data have joined forces to offer water companies ‘better control’ when maintaining water networks.


This new partnership has created huge benefits as now flow, pressure AND turbidity can be used to control how much water is used during a mains flush, whilst also measuring water quality.


Since its 2014 launch, the NephNet has proven to be the industry’s most accurate and reliable portable turbidity monitor. Several water companies have used this new technology to improve their systems, prove the flushing is effective and to speed up the process, which saves money, time, and of course water.


Some time ago, LIC took the step to make their standpipes ‘NephNet ready’, so now there is communication with the flow and pressure loggers on the standpipes, the turbidity reading can be shown with all three parameters being demonstrated.


ATi’s UK Sales Manager, Tristen Preger, said: “ATi strives to continue developing what the market demands, which is has been proven with the NephNet.


“Our continual development of our ground-breaking network monitors is born from our desire to work closely with our customers, providing solutions that help improve water quality, drive down complaints, increase credit ratings and result in proactive network management to safeguard water quality.”


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The new and innovative SQ Flow Meter developed by SOMMER Messtechnik allows to measure the discharge and flow rate of technical channels, semi-filled pipes, ducts, and shafts without even touching the water. Ever since it’s been a challenge to measure flow without going into the water. This new sensor proofs different. It uses the latest radar and ultrasonic technology to permanently capture the water level and the flow velocity. Based on an advanced hydraulic model and according to the actual water level, the SQ then is able to calculate the exact flow rate of the waterbody.


Based on SOMMER’s long lasting experience in hydrology and environmental monitoring the new SQ is especially dedicated for wastewater and sewage applications. Temporarily submersible, with a tight and water-proof housing that is resistant to also aggressive environments and fluids, it is a perfect fit for wastewater treatment plants as well as industrial applications and monitoring of cooling or process water. There is not mounting-construction inside the water needed and different interface connections such as RS-485, SDI-12, Modbus, pulse signal or analogue signal allow an easy system integration with any PLC.


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continuous battery powered turbidity for network monitoring


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t. 0800 8046 062 www.atiuk.com 7508ad@reply-direct.com www.envirotech-online.com IET May / June 2017


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