Water and Effluent Treatment Magazine
Issue link: https://fhpublishing.uberflip.com/i/1029923
12 | INNOVATION 2018 E vent Duration Measure- ment (EDM) in Combined Sewer Overflow (CSO) is a significant focus. With de- manding monitoring regimes, thousands of CSO monitor- ing installations have been implemented and planned. There are other good reasons to monitor flow throughout the waste water network to identify problems and inform main- tenance. New cost effective and reliable instruments are making improving sophisti- cated catchment planning and water infrastructure response by lowering network cost per data point. CSO-specific instruments such as Pulsar's dBi non- contacting ultrasonic level transducers combine accuracy and reliability with ultra-low power consump- tion, 75% of all dBi sales world-wide going into CSO/ EDM schemes. Pulsar's Micro- flow complements the dBi, a low power non-contacting microwave velocity measure- ment device featuring novel spread spectrum analysis. Flow rate is calculated with a simple velocity x area calculation, although the two measurements can be used in other ways. Changing flow velocity, even without a spill, indicates changing network conditions for action to be taken or data gathered. It is oŒen sufficient to know that liquid is flowing within normal upper and lower boundaries. The core measurement must, however, be reliable. There is no point in having a seamless telemetry signal and direct integration into a wider set of network analytics if you can't rely on a stable and reliable core measurement. Low unit cost means that measurement can be more widely deployed to give clarity of network flow profiles, supporting sophisti- cated management tech- niques such as Catchment Planning and Water Infra- structure Response. Data needs to be gathered through- out the sewer network, not just at the pinch points. The catchment approach naturally leads on to an infrastructure response model, but in order to reach that point the system has to be accurately modelled. New processing and new instru- ments from the leading suppliers is now making that vision a reality. Contact: Pulsar Process Measurement, Cardinal Building, Enigma Commercial Centre, Sandy's Road, Malvern, Worcestershire, WR14 1JJ Tel: +44 (0)1684 891 371 Web: www.pulsar-pm.com INNOVATION 2018 How CSO Monitoring is Providing New Tools for Catchment Planning Alistair MacKinnon, Sales and Marketing Director, Pulsar