In a town in Oregon….
The water derived from the dewatering step in a wastewater treatment plant has to be treated before returning it to the environment. In this case, a UV water treatment is applied to kill off microbes. The intensity of the UV lamps is dependant on flow rate. The flow rate is measured by the U3000 flow meter using the 4-20 output signal sent to a SCADA system to control the UV intensity.