Campbell CPEC300, Руководство по эксплуатации продукта

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CPEC300/306/310 Closed-Path Eddy-Covariance Systems
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The CPEC310 three-valve module (FIGURE 4-14 ) is housed in the CPEC310
enclosure and is used to automate zero and CO
2
span checks, and automatically
perform a field zero and field CO
2
span on a user-defined interval. Field H
2
O
span requires a dewpoint generator and cannot be automated because the
dewpoint generator is a laboratory instrument and not designed for the long-
term field deployment necessary for the automated zero/span operation.
Therefore, H
2
O spans must be performed under manual control.
FIGURE 4-14. CPEC310 valve module
4.5 Other Components
The following section describes the CR6 datalogger that is required for any of
the CPEC300-series systems. It is purchased separately, as many users already
own the CR6 datalogger.
4.5.1 CR6 Datalogger
The CR6 and EasyFlux DL are the core of the CPEC300 systems. They are
used to store the raw data, process that data and store fluxes, allow for remote
communications to the station, and provide diagnostic information about the
system. Additionally, the CR6 (FIGURE 4-15 ) is used for system control of the
pump and valves.
FIGURE 4-15. CR6 measurement and control datalogger