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Category: EddyPro

How to Change Metadata in EddyPro Software

How to Change Metadata in EddyPro Software

Mistakes happen. During the busy hustle of an eddy covariance installation, you might accidentally enter some metadata values incorrectly in the LI-7500RS/LI-7500DS/LI-7200RS Windows Interface Software. For example, you could set the canopy height to 2.6m instead of 6.2m, or you could incorrectly hear the sensor separation numbers as they’re being shouted down from the tower. You might not notice the discrepancy for a while, either. Fortunately EddyPro® Software makes it easy to edit the metadata file and reprocess all of…

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R3 and HS Sonic Anemometer Configuration

R3 and HS Sonic Anemometer Configuration

The Gill R3 and HS series of anemometers can be connected to the LI-7550 to collect data on a USB drive.  This can facilitate remote data monitoring and collection through the available Ethernet connectivity.

The anemometer will have to be preconfigured to send data out in the required format. This can be achieved using any serial communication software like Windows HyperTerminal or Tera Term (which can be downloaded for free here). You can also use the WindCom or RCom2…

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How to correctly display special symbols in the units of EddyPro output files

How to correctly display special symbols in the units of EddyPro output files

Early versions (V2.0.0 to V4.2.1) of EddyPro® software use the micro sign “µ” and degree sign “°” in the units of its output files, and  only the micro sign “µ” in its later versions (V5.0.0 to V5.1.1). When the output files are directly opened in Excel, both special symbols can be incorrectly displayed depending on the default settings of Excel and the computer’s running environment.  Here are two examples:

1.  EddyPro V2.0.0 to V4.2.1 with computers in Chinese running environment

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Diagnostic Settings for the LI-7500/7500A/7200/7700 in EddyPro Software

Diagnostic Settings for the LI-7500/7500A/7200/7700 in EddyPro Software

Diagnostics are used to indicate whether your instrument is operating correctly. The LI-7500 and LI-7500A Open Path CO2/H2O Analyzers output integers between 0 and 255 that correspond to as many as 5 diagnostic values. The diagnostic values of the LI-7200 Enclosed CO2/H2O Analyzer and LI-7700 Open Path CH4 Analyzer are integers between 0 and 65535 that indicate up to 10 and 16 diagnostics, respectively. A detailed explanation of the diagnostic values for the LI-7500A and LI-7200 and how to decipher…

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Filtering LI-7700 high frequency data using diagnostic value information

Filtering LI-7700 high frequency data using diagnostic value information

The LI-7700 outputs a variable titled DIAG – Diagnostic Value, at the same output rate as the measured data stream which can be used to filter the raw high frequency data. The diagnostic value from the LI-7700 is a 16-bit number that can be broken down to the 16 individual bits to identify various diagnostic information about the instrument.  When processing LI-7700 data for Eddy covariance measurements, the raw data needs to be filtered to exclude situations when the measured…

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