Campbell CSAT3, Instruction Manual

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CSAT3 Three Dimensional Sonic Anemometer
6
4.2 Mounting
The current mounting configuration for the CSAT3 includes a CM250
Leveling Mount, which should be mounted on the end of a 1.31" diameter
crossarm such as the CM20X. Mount it so that the bolt on the end points
upward, and secure it in place by tightening the set screws with the 3/16" Allen
wrench that came with the CM250. The CSAT3 is then mounted to the
CM250 by screwing the bolt into the anemometer block. See FIGURE 4-1.
Do not carry the CSAT3 by the arms or the strut
between the arms. Always hold the CSAT3 by the
block, where the upper and lower arms connect.
Older CSAT3s were mounted with a boom design. In this case, the sonic
anemometer is mounted to a vertical 3/4" diameter US bore pipe with a 3/4" by
3/4" crossover fitting (p/n 1017). The fitting is included with the CSAT3. The
fitting will accommodate up to a 1" outside diameter pipe. Attach the
crossover fitting to the vertical pipe and lightly tighten the vertical set screws.
Insert the horizontal mounting arm into the crossover fitting and lightly tighten
the horizontal set screws. Point the horizontal arm into the prevailing wind.
Tighten all the fitting set screws. Mount the anemometer head to the horizontal
arm. Lightly tighten the bolt underneath the anemometer block (see FIGURE
4-2, FIGURE 4-3, and FIGURE 4-4).
Over-tightening bolts will damage or deform the
mounting hardware.
Attach the electronics box to the body of the tripod or tower. Make sure the
connectors are pointing downward and the CSAT3 label is right-side-up. Use a
1/2" wrench to tighten the nuts. Connect the cable from the anemometer head
to the connector on the electronics box labeled Transducer Head.
10.00 cm
Y
Z
X
Logan, Utah
CSAT3
3-D SONIC ANEMOMETER
S/N: 102
MADE IN USA
60
o
FIGURE 4-1. CSAT3 coordinate system and current captive mounting
hardware (s/n 0631 to current)
CAUTION
CAUTION
1.31” OD Crossarm
26559 CM250 Leveling Mount