Campbell-scientific CPEC200 Closed-Path Eddy-Covariance System Manuel d'utilisateur télécharger pdf (Page 16)

CPEC200 Closed-Path Eddy-Covariance System

4.1.2.3 CPEC200 Valve Module

The optional CPEC200 valve module (FIGURE 4-8) is housed in the CPEC200

enclosure and is used to automate zero and CO

span checks, and automatically

perform a field zero and field CO

span on a user-defined interval. Field H

span requires a dewpoint generator and cannot be automated because the

dewpoint generator is a laboratory instrument. Therefore, H

O spans must be

performed manually.

The CPEC200 valve module is available in two versions, one with three valves

(pn 27559) and another with six valves (pn 26578). The valve module is

normally ordered as a factory-installed option of the CPEC200, but the module

can also be ordered separately and installed by the user.

FIGURE 4-8. CPEC200 valve module

4.1.2.4 CSAT3A Sonic Anemometer Head

The CSAT3A (FIGURE 4-9) is Campbell’s 3D sonic anemometer sensor head.

It shares integrated electronics (EC100 electronics) with the EC155 gas

analyzer. For detailed information and specifications, see the CSAT3 manual.

Campbell’s standalone sonic anemometer, the CSAT3, has its own

electronics box, whereas the CSAT3A shares the EC100

electronics with the EC155 gas analyzer. The measurement

specifications for the CSAT3 and CSAT3A are the same.

NOTE

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Campbell-scientific CPEC200 Closed-Path Eddy-Covariance System Manuel d'utilisateur Page 16