Campbell Scientific AP200 CO2/H2O Atmospheric Profile System - Manual (Page 46)

AP200 CO
2
/H
2
O Atmospheric Profile System
This will relieve further strain on the cable and also minimize air infiltration to
extend the life of the enclosure desiccant packs.
FIGURE 5-19. Cut-away view showing proper replacement of
feedthrough cap
In very humid conditions, it may be helpful to seal the cable
feedthrough with plumber’s putty.
The AP200 stores energy in a capacitor to provide backup power
in the event power is interrupted. The capacitor will power the
datalogger for a few seconds allowing it to finish writing data to
the CF card and close the file to prevent loss of data or damage
to the CF card. Do not attach additional sensors or other devices
that are powered from the datalogger without consulting a
Campbell Scientific applications engineer.
5.4 Configure the Program
The AP200 is shipped with the program AP200_vx_x.cr1 installed on the
CR1000 datalogger. A copy of the program is found on the AP200 Support
CD (pn 28552) or can be downloaded from www.campbellsci.com . The AP200
program uses both constants and variables to customize the behavior of the
system for a particular installation. Constants are used for parameters that
must be determined when the program is compiled and variables are used
otherwise.
Constants are most easily modified using the CRBasic Editor, which is part of
the PC400 and LoggerNet datalogger support software packages. They may
also be edited with a simple text editor and uploaded to the datalogger using
NOTE
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