EGA61 Multi-Sample CO₂/H₂O Analyser

The EGA61 Multi-Sample CO2/H2O Analyser is a versatile, high-precision laboratory instrument designed to analyse CO2 and water vapour evolution for up to 25 samples.

Widely employed in studies such as microbial degradation of leather, humus decomposition under alpine conditions, and agrochemical impacts on soil microbial activity, the EGA61 delivers robust, accurate, and consistent data to support diverse environmental and ecological research.

How the instrument works

The EGA61 automatically and sequentially samples gas from up to 25 connected sample chambers, each managed by its own dedicated pump.

Gas from each channel is drawn at a precisely controlled flow rate through an infrared gas analyser (IRGA) and a humidity sensor. CO2 and H2O concentrations are measured, and results are logged to an SD card or transmitted to a connected PC.

The instrument employs a zero calibration channel with soda lime to generate a CO2‑free reference, ensuring accurate baseline corrections.

Applications

  • Soil respiration studies and carbon cycling
  • Assessment of agrochemical effects on microbial activity
  • Studies on microbial degradation of various substrates
  • Climate change and environmental monitoring
  • Laboratory-based soil and substrate gas exchange experiments

Key features

  • Multi-Sample Analysis:
    Capable of analysing up to 25 channels sequentially for comprehensive studies.
  • Automated Flow Control:
    Dedicated diaphragm pumps and mass flow controllers for each sample channel ensure stable, accurate gas flow.
  • Flexible Data Logging:
    Data securely stored on SD cards, transferable via USB.
  • Infrared Gas Analysis (IRGA):
    Measures CO2 concentrations (0-2000 ppm) with high precision using an infrared gas analyser.
  • Zero Calibration:
    Automatic calibration with CO2‑free reference gas via soda lime ensures consistent measurement accuracy.
  • Real-time graphical display:
    Data can be plotted and updated in real-time, e.g. time against analysis CO2.
  • Integrated Humidity Measurement:
    Includes a fast-response, laser-trimmed H2O sensor for simultaneous water vapour analysis (0-75 mbar).
  • Versatile Analogue Inputs and Outputs:
    Multiple user-configurable inputs and outputs for comprehensive monitoring and integration with other instruments.

Enhance your research capabilities

Discover the ease, precision, and versatility of the EGA61 Multi-Sample CO2/H2O Analyser. Contact us today for more information or to request a quote tailored to your research requirements.

Resources

  • CO2 Measurement:
    • Range: 0-2000 ppm
    • Resolution: 1 ppm
    • Method: Infrared Gas Analysis (IRGA), differential open or closed system
  • H2O Measurement:
    • Range: 0-75 mbar
    • Resolution: 0.1 mbar
    • Method: Laser-trimmed fast response sensor
  • Gas Handling System:
    • 25 Channels: Up to 24 analysis channels plus 1 zero calibration channel
    • Flow Range: 0 to 500 µmol s-1
  • Data Logging:
    • Storage: Removable SD card (up to 32GB)
    • Connectivity: USB and RS232 ports for easy data transfer
  • Analogue Inputs/Outputs:
    • Inputs: Up to 7 (0-5 V)
    • Outputs: User-selectable 0-5 V or 4-20 mA
  • Power Supply:
    • Universal Voltage (110/230 V, 50/60 Hz)
  • Environmental Operating Conditions:
    • Temperature range: 5 °C to 45 °C
  • Physical Specifications:
    • Compact design suitable for laboratory bench operation
    • Data Storage: Removable SD card (up to 32GB)
    • Connectivity: USB and RS232 ports

Product brochure

References

Orders / enquiries

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