The LI-7700 Open Path CH4 Analyzer features an open sample path that measures methane density in ambient air.
Low power consumption: Draws 8 watts of power nominally, making it ideal for use with solar power supplies in remote locations.
Improved optics and temperature controls increase long-term stability and reduce drift—even when the instrument is not cleaned for weeks at a time.
Logs complete eddy covariance data sets—including wind speed measurements from a sonic anemometer and supporting meteorological, radiation, and soil data from a LI-COR Biomet System.
Heated mirrors reduce condensation on optics, which prevents data loss during humid conditions.
The LI-7700 integrates easily with LI-COR eddy covariance systems without requiring any additional components. Using GPS clocks and the Precision Time Protocol (PTP), methane data are synchronized with wind speed and other measurements with sub-microsecond accuracy. Methane fluxes are computed on the SmartFlux® System at the same time as CO2 and H2O fluxes.
For other applications, the LI-7700 can be ordered with the optional LI-7550 Analyzer Interface Unit, which provides analog, RS-232 serial, and SDM data outputs, as well as other functions.
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