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Greenhouse Gas Analyzer (CH4, CO2, H2O)
Brand: Los Gatos Research, IncLGR’s Greenhouse Gas Analyzer is the world’s most advanced instrument for simultaneous measurements of methane, carbon dioxide and water vapor. Quite simply, no other analyzer provides higher performance, ruggedness, reliability and ease of service.
The GGA is simple to use, low power and rugged which makes it ideal for field and air quality studies. The ability to measure all gases quickly makes the GGA an excellent choice for eddy covariance and chamber flux measurements. In addition, analysis of the measured absorption spectra allows the instrument to accurately correct for water vapor dilution and absorption line broadening effects and thus to report CH4 and CO2 on a dry mole fraction basis directly without drying or post processing. Furthermore, LGR’s new “Extended Range” option provides accurate methane measurements at levels up to 10% (without dilution) without reducing precision and sensitivity at typical ambient levels - a unique capability to LGR.
Features- Developed for applications requiring highest accuracy (Enhanced Performance model)
- Gases measured simultaneously
- Absorption spectra always viewable
- CH₄ and CO₂ reported on dry mole basis directly
- Ideal for eddy covariance flux and chamber flux
- Widest measurement range
- Extended range option allows methane measurements at levels up to 10%
- Validated at leading labs and monitoring networks, LGR’s GGA delivers unsurpassed peformance and exceeds WMO requirements
- LGR analyzers provide highest reliability and can be fully serviced anywhere, anytime by anyone
1 - 2 of 2 Part Numbers
907-0011
- Product - standard Rackmount Configuration Designed for Field Operation or Installation In Standard Rack Systems & can Handle Pumpover Times Greater than 1 Second
911-0011
- Product - Enhanced Performance Package with Enhanced thermal Stability to Provide ultra-Stable Minimal-Drift Messurements in a Rackmount Package that can Handle Pumpover times greater than 1 Second
1 - 2 of 2 Part Numbers
Specifications
Brand
Humidity
- 0 to 100 % RH, Non-Condensing
Maximum Drift
- CH₄: 5 ppb
- CO₂: 300 ppb
- H₂O: 100 ppm or 1 % of Reading, whichever is greater
Measurement Range
- CH₄: 0.01 to 100 ppm
- CO₂: 200 to 20,000 ppm
- H₂O: 7,000 to 70,000 ppm
Measurement Rate
- 0.01 to 10 Hz (Enhanced Performance, fast flow)
- 0.01 to 10 Hz (Standard)
- 0.01 to 1 Hz - Enhanced Performance, Slow Flow
Operating Temperature
- 0° to 45° C (32° to 113° F) - EP Model
- 5° to 45° C (41° to 113° F) - Standard Model
Operational Range
- CH₄: 0 to 1,000 ppm
- CH₄: 0 to 10 % (with Extended Range Option)
- CO₂: 0 to 20 %
- H₂O: 0 to 70,000 ppm (0 to 98 % RH)
Output
- Analog
- Ethernet File Transfer
- RS-232 (Digital)
- USB
Power Consumption
- 100 W - Standard Model
- 150 W - Enhanced Performance Model, Steady State
Power Requirement
- 115/230 Vac, 50/60 Hz
Precision (1σ, 0.1 Sec / 1 Sec / 100 Sec)
- CH₄: 3 ppb / 1 ppb / 0.3 ppb
- CO₂: 0.5 ppm / 0.3 ppm / 0.05 ppm
- H₂O: 50 ppm / 15 ppm / 5 ppm
Sample Temperature
- -10° to 50° C
Accuracy
- Uncertainty < 1 % w/o Calibration (Standard)
- Uncertainty < 0.03 % (Enhanced Performance model)
Dimensions
- Standard rackmount model: 8.75" x 19" x 24"
Weight
- 29 kg (Standard model)
- 40 kg (Enhanced Performance model)