Campbell Scientific 43347 RTD Temperature Probe and 43502 Aspirated Radiation Shield - Manual (Page 33)

Appendix C. 43347 Aspirated Radiation Shield
C.2 Installation
Refer to the General Assembly drawing in the RM Young 43408 Instruction
Manual (included) for reference to the names of shield components.
Thread the molded shield assembly into the appropriate threaded opening in
the shield mounting tee at the end of the telescoping arm. Hand-tighten the
shield to slightly compress the O-ring seal; do not crossthread or overtighten.
Insert the sensor mounting tube and junction box with its split bushing into the
shield mounting tee. Tighten the threaded split bushing to secure the junction
box in place; do not overtighten.
Two U-bolt brackets attach the radiation shield to horizontal, vertical, or
diagonal tower members up to 2 inches in diameter, spaced 12 to 30 inches
apart. Campbell Scientific pn 7515 10 m Aspirated Shield Mounting Bracket
can be used to mount the shield to a single vertical pipe or mast, as shown in
FIGURE C-2.
The mounting arm should be horizontal with the vent holes facing downward,
with the probe end pointing towards the prevailing wind. Tighten the U-bolt
brackets sufficiently for a secure hold without distorting the plastic v-blocks.
Loosen the band clamp and extend the arm at least 24 inches. Rotate the shield
so the intake tube is oriented vertically with the intake opening facing down.
Tighten the band clamp and secure the sensor lead to the arm using UV
resistant cable ties.
pn 7515
Junction Box
Vent Holes
Intake Tube
FIGURE C-2. PN 7515 10 m Aspirated Shield Mounting Bracket
C-3