Environmental
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LI-COR offers two long-term chambers (8100-101, 8100-104) to make unattended measurements of diel and seasonal soil CO2 flux patterns. These chambers attach to either the LI-8100 (direct connection), or to the LI-8150 Multiplexer. Both chambers have undergone extensive testing throughout the development cycle to address the impacts of chamber design on CO2 efflux from the soil. Long-Term Chambers - 8100-101, 8100-104
8100-101 Long-Term ChamberThe 8100-101 Long-Term Chamber is designed for use with the LI-8100 in a single chamber, long-term system. The 8100-101 also can be used for multiplexing with the LI-8150 Multiplexer. The chamber has a vertical lift strut mechanism (below) to raise and lower the chamber.
8100-104 Long-Term ChamberDesigned for use with the LI-8150 Multiplexer, the 8100-104 Long-Term Chamber is an economical, lightweight solution for multiplexed systems. The 8100-104 expands the capabilities of the LI-8100 System and provides an additional chamber option to measure both spatial and temporal variation of soil CO2 flux. The chamber has a lift-and-rotate drive mechanism (below right) that rotates the chamber to six configurable open positions.
Important Differences Between the 8100-101 and 8100-104 Long-Term Chambers
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In
a multiplexed system with 8100-101 chambers,
an 8150-661 Chamber Sensor Interface is required
for each chamber where auxiliary sensors are
to be connected. The Interface allows for connection
of up to three auxiliary sensors, such as soil
temperature and moisture sensors offered by
LI-COR. The sealed inputs on the Interface
each provide a DC excitation source and a 0-5VDC
general input channel.
In
a multiplexed system with 8100-104 chambers,
auxiliary sensors are connected directly to
the control panel of the chamber. The panel
inputs allow for connection of up to three
auxiliary sensors, such as soil temperature
and moisture sensors offered by LI-COR. The
sealed inputs each provide a DC excitation
source and a 0-5VDC general input channel.
