ETG 6500 | Fixed Biogas, Syngas and Biomethane analyser


Methane (CH4) [%] – Carbon Dioxide (CO2) [%] – Hydrogen Sulphide (H2S) [ppm] – Oxygen (O2) [%] – Other compounds

The ETG 6500 series is the ideal solution for continuous gas analysis. Based on NDIR (infrared) + ECD (electrochemical) technology, the ETG 6500 series analysers have proven to be a valuable ally in managing biogassyngas and biomethane plants. Reliable, safe, resistant and highly customisable, they are built on the customer’s needs and adapt to every situation. They are designed to be immediate and easy to use, to keep maintenance costs low. ETG analysers for Biogas, Syngas and Biomethane are available in both Wall-Mounted and Rack 19″ versions.

Are you looking for an analyser to check the methane emissions produced by Biogas in landfills? Please take a look at our ETG 6900, specially designed for this purpose.

Durable and versatile
The ETG 6500 series can analyse biogas at one or more points in the plant, thus controlling biodigester production and the desulphurisation system’s efficiency. Some sample treatment systems can be added if conditions require it, such as a chiller to extract the gas’s condensate. If the installation occurs in an unusually hostile climate, an air conditioner is available to preserve electronic components. The external body is made of AISI 304 stainless steel, making it resistant to rust and weather conditions.

Designed for the user
According to customer requirements, the ETG 6500 series analyses many different compounds including CH4, CO2, O2, H2S, H2 and many others. The ETG 6500 analysers have the exclusive H2S cell cleaning system, which prevents the electrochemical cell from running out in advance, thus saving on maintenance costs. The interface is intuitive and easy to use, thanks to the practical 5.7″ touchscreen installed on the front. All ETG 6500 analysers can be remote-controlled over LAN and WLAN, thus ensuring agile management without on-site personnel.

  • Available in the configuration for Biogas, Syngas and Biomethane
  • User-friendly interface thanks to the practical colour touchscreen
  • AISI 304 stainless steel body
  • Threshold, condensate and flow alarms
  • Sample treatment and multi-point analysis
  • Compatible with the most widespread industrial communication protocols
  • Quick and easy download of analysis data in .csv format via USB
  • Preservation of the H2S cell thanks to the measuring-cleaning cycle

ETG Risorse, It


CH4 – Methane, CO2 – Carbon Dioxide, H2S – Hydrogen sulfide, O2 – Oxygen Gas




Electrochemical, NDIR




Bio Energy