Campbell Scientific AP200 CO2/H2O Atmospheric Profile System - Manual (Page 16)

AP200 CO
2
/H
2
O Atmospheric Profile System
Intake assemblies shipped prior to August 2013 had the rain
diverter located at the end of the assembly rather than below, as
shown in FIGURE 4-3. This assembly also uses a different filter,
which is shown in FIGURE 4-13, and available for replacement
as pn 27809.
FIGURE 4-3. Side view of earlier generation AP200 intake assembly
4.1.2 Optional Components
The AP200 requires an LI-840A analyzer (manufactured by LI-COR ® , Inc,
Lincoln, NE) to measure CO
2
and H
2
O concentrations. This infrared gas
analyzer (herein referred to as the IRGA) can be provided as a factory-installed
option or it can be provided by the user. The AP200 is designed for easy
installation of the LI-COR ® IRGA. The IRGA installed in the AP200
enclosure is shown in FIGURE 4-4. For complete details, see the LI-840A
instruction manual, available at www.licor.com .
FIGURE 4-4. The IRGA installed in the AP200 system enclosure
NOTE
Rain Diverter
4