Campbell CPEC300, Product Manual

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CPEC300/306/310 Closed-Path Eddy-Covariance Systems
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humidity indicator card in the mesh pocket in the enclosure door. Reseal the
remaining two desiccant packs in the bag for later use.
The EC100 should be mounted vertically to prevent the ingress of
water from precipitation.
The mounting bracket will accommodate a horizontal, vertical, or angled pipe
from 2.5 cm to 4.8 cm (1.0 in to 1.9 in) diameter. See the EC155 user manual
for details on configuring the EC100 mounting bracket.
CPEC300:
Mount the CPEC300 enclosure and the CPEC300 pump module within 3.0 m
(10.0 ft) distance. The enclosure and pump module are shown mounted
vertically on the CM210 tripod in FIGURE 4-4 , but they may also be mounted
on the leg of the tripod, triangular tower, or large-diameter pole, depending on
the site requirements and the mounting options ordered.
The CPEC300 enclosure is not intended for marine environments.
The ingress protection is not sufficient for the salinity of these
environments, and corrosion will occur to components within the
enclosure.
CPEC306:
The CPEC306 enclosure and the EC100 electronics are mounted as shown in
FIGURE 4-8 , with the CPEC306 enclosure and EC100 enclosure mounted on
the legs of a tripod. They can also be mounted on a triangular tower, or large-
diameter pole, depending on the site requirements and the mounting options
ordered.
CPEC310:
The CPEC310 enclosure and the EC100 electronics are mounted as shown in
FIGURE 4-11 , with the CPEC306 enclosure and EC100 enclosure mounted on
the legs of a tripod. They can also be mounted on a triangular tower or large-
diameter pole, depending on the site requirements and the mounting options
ordered. If a scrub module for zeroing the system has been included with the
system, then that can be mounted on the leg of the tripod or near the CPEC310
enclosure. For cylinders of CO2 and Zero air (needed if there is not a scrub
module) they should be situated close to the base of the tower and secured with
harnesses and additional poles to prevent the cylinders from falling over and
damaging the system or injuring personnel.
5.1.3 Install EC Sensors
Install a horizontal mounting crossarm at the height desired for the EC
measurement. This crossarm must be within ±15 degrees of horizontal to level
the sonic anemometer. Point the crossarm into the predominant wind direction
to minimize wind disturbance caused by wind flowing past the mounting
structure and EC sensors. The outer diameter of the crossarm should be 3.3 cm
(1.3 in). The CM202 crossarm is shown in FIGURE 5-1 .
NOTE
NOTE