![]() ![]() Open channel ultrasonic flow meters provide a reliable and accurate method of measurement in these open conditions, used as part of an open channel flow measurement system and should be used alongside a “primary flow device” such as a flume or a weir. A cross section of an open channel will usually be triangular, rectangular, circular or trapezoidal and factors influencing flow in open channels include channel shape, fluid velocity and depth and the slope of the channel. The flow in open channels typically occurs due to gravity, and the maximum velocity occurs a short distance below the water surface, with the HGL (Hydraulic Grade Line) coinciding with the water surface line. Examples of open flow are streams, flumes, rivers, drains and ditches. Within open channel flow, the top surface of the water is usually open to the atmosphere. Types of flow meterĮffluent flow meters are typically split for suitability for either open channels or closed pipes. This guide to types of flow meters explains the different types of effluent flow meters that are available and what to consider when both selecting and maintaining your flow measurement solution. If the responsibility for effluent flow measurement is yours, then it is important that you understand why certain flow meters should be used in particular conditions. There are various types of meter available, covering both open and closed channel and clean or dirty water. Most UK businesses subject to consent to discharge permit requirements will be required to record and submit the volume and quality of the wastewater they are producing – and will require a wastewater flow meter of some description for this purpose. Nanocolor UV/Vis II and Vis II SpectrophotometersĮffluent flow meters are designed to accurately measure the rate of flow of wastewater within a particular operating environment. ![]() Nanocolor Compact Photometer PF-12 Plus.Wastewater charges reduced for food processing client. ![]()
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