Racine vortex flow meters utilize ultrasonic technology to measure tiny vortices that form when media in the pipe move across a strut. The number of vortices shed is directly proportional to flow rate, and the resulting product is Racine's RWG and RWBG Wafer-Style Gas Flow Meters with high turndown ratio and high accuracy. This flow meter offers one of the smallest struts in the industry which allows for low pressure drop, high levels of sensitivity and superior performance over a wide measuring range. Racine's RWG and RWBG vortex flow meters have no moving parts and are virtually maintenance free once installed. All meters in this series are loop-powered devices with standard HART® communications for ease of field programming and system integration. Through the use of an internal RTD and an optional external sensor pressure, the flow meter software will compensate for changes in pressure and temperature to achieve accurate mass flow measurement and gas flow standardization. Benefiting from over two decades of research and development, Racine vortex flow meters are an excellent choice for process plants, refineries, and biogas applications. They are also an excellent choice for OEM companies working with environmental monitoring, water supply, or water treatment equipment.