You will receive an email shortly.
If you do not receive it within 24 hours or if you have any questions, please contact LI-COR at 1-402-467-3576.
Patented system of high-speed temperature and pressure measurements of the sampled air provide true mole fraction for the most accurate flux measurements.
Temperature-controlled source and detector for stable measurements—even in wide temperature fluctuations.
Precision optical components reduce sensitivity to contamination in dusty environments.
Scratch-resistant sapphire lenses for simple cleaning in the field.
High-performance brushless chopper motor provides dependable long-term operation.
The LI-7200RS uses non-dispersive infrared spectroscopy to measure CO2 and water vapor densities in air. It transmits infrared radiation through temperature-controlled optical filters, then through the closed sample path to a thermally regulated lead selenide detector. Some of the infrared radiation is absorbed by CO2 and water vapor in the sample path. Gas densities are computed from the ratio of absorbed radiation to a reference.
Using a patented configuration, the analyzer also measures temperature and pressure of the sampled air at high speeds—synchronously with the gas measurements. These data are combined to compute wet and dry mole fractions at speeds up to 20 measurements per second.
The following accessories are available for the LI-7200RS.
Included with each LI-7200RS, it houses the gas analyzer electronics, a 16 GB USB drive for data logging, and the SMARTFlux System. The LI-7750 has connections for a 3-dimensional sonic anemometer and provides Ethernet communication, making it easy to connect the LI-7200RS with FluxSuite Software.
Features an aerodynamic design that minimizes interference with wind flow to maximize frequency response, by minimizing flow distortion and dead volumes. A standard component of the LI-7200RS, the inlet cap is compatible with both the insulated intake tube and optional heated intake tube.
Two 2-micron Swagelok® particle filters are included with each LI-7200RS. Compatible with both the insulated and heated intake tubes, the filter reduces the need to clean the intake tube and gas analyzer cell, improving the stability of measurements in dusty environments.
Efficient and durable, the Flow Module provides a precisely controlled airflow rate through the LI-7200RS optical path. With precise flow measurements and controls, it actively regulates the flow to ensure stable and consistent airflow rate.
Outputs flow rate, pressure drops, and diagnostic data to indicate when filters need to be cleaned or replaced.
Included with each LI-7200RS, the insulated intake tube is ideal for measurements in dry environments with low to moderate humidity.
The optional heated intake tube is recommended for humid environments. It improves frequency response of water vapor measurements by preventing water vapor sorption to the intake tube walls.
The LI-7200RS software simplifies eddy covariance system setup, while enabling easy access to calibration and diagnostic information for the gas analyzer.
The instrument dashboard displays diagnostics for the analyzer, connection status, measurements, and real-time eddy covariance results. The intuitive interface brings all the essential eddy covariance settings together, making it easy to record site information.
Every LI-7200RS is ready to connect to FluxSuite Software. FluxSuite puts EddyPro results and instrument performance information online for access from your computer and smartphone. It enables networking and collaboration between researchers and provides email notifications when there is an issue at your site.
The LI-7200RS can be used with any high-speed 3-dimensional sonic anemometer that provides analog outputs—so you can choose the ideal anemometer for your site conditions and measurement objectives. The analyzer can be installed under or beside the sonic anemometer—to accommodate different sites and objectives.
LI-COR provides a variety of compatible sonic anemometers and data cables to simplify this connection.
Sensor head cables are available in five- and ten-meter options. You can install the sensor head up to ten meters from the LI-7550. The Ethernet cable can extend up to several hundred meters from the LI-7550.
The LI-7200RS supports standard network communication protocols so you can easily add networked devices, including an LI-7700 Open Path CH4 Analyzer, a LI-COR Biomet System, and a cellular or satellite radio.
Access the instrument over the Internet with a direct connection, cellular modem, or satellite communication system—and connect with FluxSuite for online access to your site and networking between sites and research groups.
Specifications subject to change without notice.