Campbell Scientific AP200 CO2/H2O Atmospheric Profile System - Manual (Page 14)

AP200 CO
2
/H
2
O Atmospheric Profile System
o Careful design of the power source for the AP200 should be
undertaken to ensure uninterrupted power. If needed, contact a
Campbell Scientific applications engineer for assistance.
o Retain all spare caps and plugs as these are required when
shipping or storing the AP200 system.
3. Initial Inspection
Upon receipt of the AP200, inspect the packaging and contents for damage.
File damage claims with the shipping company.
Model numbers are found on each product. On cables, the model number is
often found at the connection end of the cable. Check this information against
the enclosed shipping documents to verify the expected products and the
correct lengths of cable are included.
4. Overview
The AP200 measures atmospheric carbon dioxide and water vapor at up to
eight positions. Intake assemblies are generally spaced along the height of a
tower to enable measurement of the vertical profile. The AP200 is commonly
used in conjunction with an eddy-covariance system to measure the storage
term to give a more complete measurement of the surface exchange.
4.1 System Components
The AP200 consists of several components, some of which are optional. Some
additional accessories are required to complete a fully functioning AP200
system and are described and illustrated in the sections that follow.
4.1.1 Standard Components
Standard with the AP200 are the AP200 system enclosure and four to eight
intake assemblies.
The AP200 system enclosure always includes a sample pump, valve manifold,
CR1000 datalogger, and other electronics to control and monitor the system.
The components within the AP200 are shown in FIGURE 4-1. The CR1000
records data, selects valves, adjusts pumping speed to control system pressure,
and controls the temperatures of the pump and valve manifold.
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