The RWG and RWBG Series meters are wafer-style in-line flow meters designed to offer high accuracy gas flow measurements with very low pressure drop. The meters have no moving parts and are virtually maintenance-free once installed. The RWG series is suitable for most gas types. The RWBG series is similar in construction but optimized for low-pressure "wet gas" or "BioGas" applications, typically CH4 + CO2 mixtures. All meters in these series are loop-powered devices with standard HART® communications, CE mark and optional ATEX hazardous area certification. Through the use of an internal RTD and an external pressure sensor (optional), the flow meter software will compensate for changes in pressure and temperature, to achieve an accurate mass flow measurement.