KROHNE, Inc. is now offering the OPTISONIC 7300 Biogas ultrasonic flowmeter, which has been specially designed to measure dry and wet biogas with variable composition. The flowmeter provides additional functions like calculation of standard volume, methane content measurement, and diagnostics features. It features no moving parts and no pressure loss.
OPTISONIC 7300 Biogas overcomes the limitations of the ultrasonic principle in biogas applications due to high damping of the acoustic signals by carbon dioxide and high water content in the biogas. Its signal transducers provide a stronger ultrasonic signal into the gas, and specialized signal processing enables better detection of small, strongly dampened acoustic signals. These features, along with the mechanical design of transducers and transducer pockets, make the measurement insensitive to liquid water and biological scaling.
OPTISONIC 7300 Biogas features a maintenance-free full bore flow sensor without any moving parts. Because the hydrogen sulfide (H2S) in biogas is corrosive when dissolved in water, the measuring tube is made of stainless steel 1.4404/316L and the transducers are made of NACE-approved grade 29 Titanium for maximum corrosion resistance.
Image courtesy KROHNE, Inc.