Section 3. Operation
may need to change the setting. See Advanced—Chopper Housing Temperature on
page7-8 for more details. The remaining tabs in the Site Setup window can be
skipped or used for advanced configurations.
Configuring the USB Log File
Click Site Setup >USB Log File to configure datalogging.
Update Rate: ≥10 Hz, typically.
File Duration: 30 Minutes.
Check Compress files (.ghg) so data can be processed by EddyPro or SmartFlux.
When out of space: Select your preference for managing data when the USB drive
becomes full.
Data can be logged at up to 20 Hz. These files can be split into smaller files at 30
minute, 1 hour, 2 hour, or 4 hour intervals. For eddy covariance, select 30 minutes.
Note: Files are split based on the instrument clock. If you choose to split the files
at 30 minute intervals and start logging at 10:22, the file will be split at 10:30,
11:00, etc.
All files are assigned a timestamp with the format YYYY-MM-DDTHHMMSS_
InstrumentName.ext, where date and time are year, month, day, and HHMMSS
is 24-hour time (e.g. hour 15 = 3:00 p.m.). The file extension appended is either
.data, .metadata, or .status.
3-20 LI-7200RS Enclosed CO₂/H₂O Analyzer
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