Formaldehyde analyzer GA315

exhaust gaslandfillfor monitoring gas emissions

The GA315 is a formaldehyde analyzer for hot online measurement of formaldehyde (CH2O) in exhaust gas at gas temperatures up to 300 °C, typically from gas engines running on biogas or landfill gas. The sample stays hot from the heated sample line to the measuring cell, so water-soluble formaldehyde is measured without the losses a sample gas cooler would cause.
Typical applications:

• Formaldehyde emissions from gas engines at biogas and landfill gas plants
• Formaldehyde emission testing on stationary engines, e.g. for limits under RICE NESHAP in the US
• Readjusting engine settings directly during the measurement
• Power generation and waste management
• Engine manufacturers: exhaust gas development and testing

What operators get:

• Results on site, without sending gas samples to a laboratory
• Compensation for pressure, humidity and methane, so the methane content of engine exhaust does not distort the formaldehyde reading
• NDIR method with vacuum reference technology and a cuvette heated to 85 °C
• 7-inch color touch display with integrated PC
• RS232 as standard; Profibus DP, Modbus TCP, EtherNet/IP, Profinet and up to 8 analog 4–20 mA outputs as options

Technical data (excerpt):

• Gas component: formaldehyde (CH2O)
• Measuring range: 0–200 mg/m³ or 0–160 ppm
• Measurement uncertainty: < 5 % of reading
• Detection limit: 4 mg/m³ or 3 ppm
• Measurement interval: 20 s
• Sample gas: up to 300 °C; heated sample inlet and heated sample line
• Readiness: 5 min, full specification after 30 min
• Housing: 19-inch rack, 400 mm deep, IP20, 17 kg

Full specifications: data sheet (as of 20.05.2025) under Catalogs.