News
20 Jun 24
Multilog IS Flow: our new UKCA/ATEX Flow Survey monitor
Multilog data logger, additional external battery pack and flow sensors in a robust carry case

Water companies are facing stiff challenges in maintaining and improving a Victorian-era system that, because of more regular, heavier rainfalls and significant increases in population, is more frequently being overwhelmed.

While water companies continue to make significant investments into Combined Sewer Overflows (CSO) and Event Duration Monitoring (EDM), there is an acknowledgement that there still work to be done in reducing overspills and pollution incidents.

With media coverage and public discontent growing, the fines being levelled for overspills and pollution incidents are increasing also.

As a result, there is a significant focus on waste water monitoring spend in AMP8 (the 5 year Asset Management Plan cycle) in an attempt to reduce spillage and the financial cost of them.

 

The benefits of Flow Surveys

EDM is having an impact by delivering key data that shows where, and for how long, these spills are taking place, but EDM cannot provide information about volume and flow rates.

To predict the quantity and severity of an overspill at a CSO, an internal modelling team will generate a hydraulic model of the network and use this, alongside rain data, to estimate volume.

To supplement this method, and to confirm that the modelling is accurate, water companies perform additional Flow Surveys, for which we have developed our new Multilog IS Flow monitor. 

Multilog IS Flow is our UKCA/ATEX-certified flow survey system that combines our most advanced data logger with a Doppler velocity flow sensor and a hydrostatic level sensor to deliver a complete ‘plug and play’ flow monitoring package.

Designed to be both rugged enough for permanent flow surveys and portable for short-term use, Multilog IS Flow is a battery-powered system that uses advanced NBIoT, LTE-M or 2G digital telemetry to deliver accurate, real-time flow and volume data.

There are numerous reasons why it is important to confirm the accuracy of network modelling.  For instance, understanding the volume of water being spilled can help to inform decisions about fixing ‘worst offenders’ first and helping to prioritise investment, which will more quickly reduce financial penalties and impact Outcome Delivery Incentives (ODI).

Additionally, on their own, the internally generated hydraulic models are not enough to evidence large-scale investment requirements.  Building a new line or storage tanks will require validation and justification through in-situ flow surveys, which can give confidence to capital expenditure plans.

 

Why use Multilog IS Flow for your flow survey?

We have built the Multilog IS Flow monitor around our highly-versatile Multilog IS data logger, which, as well as having multiple channels for compatibility with a wide variety of sensors, also benefits from advanced NBIoT data telemetry.

This allows for data to be transmitted to the waste water company daily (or even more frequently) to provide an up-to-date picture of network conditions. 

Regular data telemetry can also provide peace of mind that the equipment is working correctly and that the data is being collected as expected.  It would be costly in terms of both time and money to find out after six weeks that the survey had failed. 

Additionally, regular flow survey data can be used to schedule network maintenance by identifying problems during the survey rather than after it has concluded.

As an ATEX-certified and IP68 rated system, Multilog IS Flow is ideally suited for repeated deployment in sewer environments.  It can be quickly installed, the batteries can easily be replaced and using digital telemetry to transfer data directly means that the water company does not have to bear the cost of sending technicians to the unit to gather the collected data.

 

“The Multilog IS Flow monitor is a market leading combination of advanced data logging and telemetry combined with industry leading sensors.  Housed in a rugged and lightweight enclosure it’s perfectly suited to the challenge of flow monitoring in waste water networks”.

Tim Hackwell, Business Development Manager (Wastewater Sales), HWM

 

Multilog IS Flow has been developed to deliver the necessary data to support effective, evidence-based decision making.  For more information, and to download the Multilog IS Flow datasheet, please click here.

 

 

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HWM-Water Ltd
Ty Coch House
Llantarnam Park Way
Cwmbran, NP44 3AW
T: +44 (0) 1633 489 479 F: +44 (0) 1633 877 857 E: sales@hwm-water.com
The Queen's Award for Enterprise: Innovation 2017
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