PRODUCT OVERVIEW Fresenius Off-Gas System More Info — Gas Dome 300 + Smart Control 300 The smart solution for monitoring off-gas emissions of WWTPs

SMART OFF-GAS MONITORING Off-Gas System Smart Reliable monitoring. Smart investment. For continuous emission monitoring with reliable measuring technology and an economically optimised system design. Continuous measurement of nitrous oxide and methane emissions from the aeration tanks of wastewater treatment plants measurement uncertainty above the lower measuring range Smart & compact for standard monitoring tasks The economical solution for reliable continuous emission monitoring. The system A floating hood with a footprint of exactly 1.00 m² captures the rising off-gas. Driven solely by the...

Why the Off-Gas System Measured instead of estimated A defined reference area The EU Urban Wastewater Treatment Directive requires accounting for methane and nitrous oxide — transposition by July 2027. A measured emission rate is more defensible than any estimation factor. The hood encloses exactly 1.00 m² and the immersed skirt seals it. No dilution by ambient air — unlike extraction at the tank edge. A key figure that works mg/(m²·h) scales to the whole tank, is comparable between plants and shows immediately whether an operational change really reduces emissions. Self-referencing NDIR with...

The OFF-GAS System Smart is the line for operational monitoring: greenhouse gas accounting, verification of process optimisations and permanent surveillance of aeration tanks — technically complete, compact and deliberately designed for efficiency. The SC300 covers N2O, CH4 and CO2, works with the same self-referencing NDIR method as the GA320 and needs a cabinet depth of only 400 mm. Measured components and ranges N2O 0-2,000 ppmV • CH4 0-1,000 ppmV • CO2 0-5 vol.-% Detection limit N2O 10 ppmV ■ CH4 100 ppmV ■ CO2 0.04 vol.-% Resolution N2O 1 ppmV ■ CH4 1 ppmV ■ CO2 0.01 vol.-% Expanded measurement...

Your scope of supply: three building blocks, one system Completely assembled, wired and factory-tested — ready for connection to power and control system The floating hood Gas Dome 300 — capture at the tank • Collection area exactly 1.00 m2, immersed skirt with chain ballast • Off-gas hose ID 40 mm, 25 m per measuring point • Guy ropes with turnbuckles and boom for strain relief The analyser system Outdoor cabinet with complete periphery • Rain canopy and plinth — weatherproof outdoor installation • Analyser weather-protected inside the cabinet, heated and ventilated • Condensate trap with level...

You receive a completely assembled, wired and tested system — ready for connection to power and control system. All components are industry standard and individually available as spare parts. Gas path per measuring point Condensate trap 300 mm overall height, straight through, with level monitor 1 2 — no drain valve required Sample gas filter In the partial flow directly upstream of the analyser 1 2 Flow measurement with Thermal flow transmitter in the vertically flowed metering 1 2 DN 50 metering tube tube widened to DN 50, 0-3 m/s 0-21 m3/h, output 0-10 Fresenius Umwelttechnik GmbH - Off-Gas...

COMPONENT DESIGN AND CHARACTERISTICS 1 MEASURING POINT Measuring technology and evaluation Analyser SC300 Wall-mounted unit 310 x 133 x 221 mm on the mounting 1 1 plate, N2O / CH4 / CO2, N2O detection limit 10 ppmV, self-referencing NDIR, 2.5" touch display Emission rate calculation In the analyser firmware: E = c x q / a in mg/(m2-h), standard 1 1 reference conditions throughout, minimum flow criterion 1 m3/h Assembly and testing Cabinet assembly, wiring, leak and function test at incl. incl. Measurement uncertainty of the emission rate Good to know Off-gas flow rate Complete system 1. One system...