Vaisala launches combined methane, CO2 and humidity sensor for biogas producers07 February 2019

Vaisala MGP261

Measurement equipment supplier Vaisala has introduced a combined multigas measurement instrument that provides continuous readings of methane, carbon dioxide, and water vapor directly in the biogas process pipeline.

It is said to be optimised for biogas production processes, such as anaerobic digestion of waste from agriculture, industries and municipalities, and the utilization of landfill gas. According to Vaisala, the MGP261 helps biogas plant operators gain comprehensive control over their process and optimize their combined heat and power (CHP) engine performance. The instrument also enables operators to control humidity in order to reduce wear in the CHP engines and process components.

Vaisala Industrial Measurements product manager Antti Heikkilä says: “Reliable and accurate in-line monitoring enables optimization of the production process by reducing operating costs and improving the efficiency of a biogas plant. Biogas production is an organic process, affected by many variables. The better you can monitor your entire process and react to changes in the gas composition and humidity, the more efficient the plant becomes.”

The in situ installation of the instrument is said to make sample treatment unnecessary, enabling measurements without any sampling lines, pumps, or moisture removal traps. It is Ex certified up to Zone 0 inside pipes and Zone 1 outside, which means it can be installed in explosive atmospheres.

According to the company, no calibration gases are needed in routine operation and Vaisala’s proven background auto-calibration function significantly reduces expensive calibration work.

The product, for which specifications are available on, will be available in the second quarter of 2019.

A webinar about biogas processing will be held on 27 February 2019 at 3–4 pm CET (Central European Time):

Will Dalrymple

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Vaisala Ltd

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