020C Wind Direction Sensor
9
FIGURE 7-3. 020C alignment notches
5.
Tighten the U-bolt if using the CM220 (FIGURE
) or set screws if
using the Nu-Rail® fitting (FIGURE
).
6.
Attach the sensor cable to the six-pin male connector on the 020C
(FIGURE
).
7.
Route the sensor cable along the underside of the crossarm to the tripod or
tower, and to the instrument enclosure.
8.
Secure the cable to the crossarm and tripod or tower using cable ties.
7.5 Sensor Check-Out
With the datalogger measuring the sensor, 020C output moves up-scale as the
vane rotates clockwise (as seen from above the sensor). Output will progress
up-scale until the 360
°
(full scale) mark has been reached. Output then drops to
near 0
°
. When the notches on the rotating hub and the column of the sensor are
exactly aligned, the output will be 180
°
.
8. Troubleshooting and Maintenance
All factory repairs and replacements require a returned material
authorization (RMA) and completion of the “Declaration of
Hazardous Material and Decontamination” form. Refer to the
page at the beginning of this manual for more
information.
NOTE
Alignment notches
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