WATER MANAGEMENT: Cutting Cost Of Water To Farmers
Recent Western Cape Business News
CONCERN about inaccurate measurement readings on open flow channels supplying farms in the Northern Cape prompted a water treatment and water supply company to approach Vega for a demonstration of their non-contact radar technology for the water industry.
The company was not achieving the accuracy required with the existing ultrasonic sensors they had installed.
Both the water flow volumes and the level of the channels needed to be monitored accurately, as this controlled sluice gates that let the water through to the various farms. Inaccurate flow readings from the ultrasonic sensor was not only impacting the volumes that the farmers were being charged for, but also it was not reliably controlling the level. This resulted in channels overflowing in numerous areas and water being wasted.
The recommendation was for a Vegapuls WL61, as it offered the required accuracy of about 2mm. In comparison to competitors specifications, which vary between 5mm and 10mm over a very short distance, whereas the Vegapuls WL61 offers mm precision across the range.
The client has purchased an initial sensor, with the intention of purchasing a further 400 units in the future. During installation, the limited space in the application was challenging, but it has proved to be no problem for the sensor echo processing software in operation.
The output of the Vegapuls WL61 is being processed by a separate signal conditioning unit. The performance data is being carefully logged and monitored, and two and a half months into operation, the customer was satisfied with the solution as it has given him full control and reliable water supply to their customers.
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