Windows Software Reference (Single Chamber Mode)
8-7
(discussed in Section 2, Initial Setup). The soil CO
2
flux measurement requires an
accurate estimate of the Total System Volume. The LI-8100A software uses the
Chamber Offset and the Soil Area values to calculate the volume of air inside of
the soil collar (Collar Volume). This value is, in turn, added to the Chamber
Volume and IRGA Volume to obtain the Total Volume. Measuring the Chamber
Offset is described in Section 2, Using Soil Collars.
The Chamber Volume and Soil Area values are entered automatically when a
LI-COR chamber is chosen from the Chamber pull-down menu.
Port Setup: Observation
Click on the Observation tab to open the Observation page, where you can define
the Observation Length, including delay times, Dead Band value, and Purge Time
values.
The Treament Label is user-entered information which is included in a data record
(maximum 30 characters).
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