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Fast Methane Analyzer

LGR’s Fast Methane Analyzer (FMA) provides extremely precise measurements of methane (CH₄) and water vapor at up to 20 Hz. In addition to accurately monitoring typical ambient methane levels, the unprecedented response of LGR’s FMA allows measurements at high mole fractions (to 1,000 ppm with extended range option) for applications including landfills, peatlands and chamber studies. Features and Benefits:
  • Measure methane at up to 20 Hz

  • High resolution absorption spectra are viewable for diagnostics

  • Requires only 80 watts (with standard internal pump)

  • Measurements over extremely wide range (up to 10%)

  • Eddy covariance flux measurements

  • Chamber studies
  • 1 - 3 of 3 Part Numbers
    CH4-911
    CH4-911
    • Product - Standard (Rackmount Package)
    F-CH4-907
    F-CH4-907
    • Product - Fast Enhanced Performance (Rackmount Package)
    M-CH4-918
    M-CH4-918
    • Product - Microportable
    1 - 3 of 3 Part Numbers

    Specifications

    Accuracy

    • CH₄ (1 Sigma): 3 ppb (1 second) / 0.3 ppb (100 seconds)
    • H₂O (1 Sigma): 150 ppm (1 second) / 50 ppm (100 seconds)
    • Uncertainty < 0.03 % - Enhanced Performance Model
    • Uncertainty < 1 % w/o Calibration - Standard Model

    Applications

    • Eddy Covariance & Chamber Flux Measurement
    • Landfills, Peatlands & Chamber Studies

    Communication

    • Ethernet
    • RS-232 (Digital)
    • USB

    Frequency

    • Measurement Rate: 0.01 to 20 Hz

    Humidity

    • Ambient: < 100 % RH, Non-Condensing

    Measuring Range

    • CH₄: 0.01 to 100 ppm
    • H₂O: 1,000 to 70,000 ppm

    Mounting

    • Rack-Mounted

    Operating Temperature

    • 0° to 45° C (32° to 113° F) - Enhanced Performance (EP) Model
    • 5° to 45° C (41° to 113° F) - Standard Model

    Power Requirement

    • 115/230 Vac, 50/60 Hz

    Range

    • Operational Range, CH₄: 0 to 1,000 ppm
    • Operational Range, H₂O: 0 to 70,000 ppm (0 to 100 % RH)

    Temperature Range

    • Sample: 0° to 50° C (32° to 122° F)

    Thermal Drift

    • CH₄: 0.8 ppb, Max.
    • H₂O: 100 ppm or 1 % of Reading, whichever is greater - Enhanced Performance Model
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