ET107 Weather Station
25
6.
Center the WindSonic over the three threaded screw holes on the mounting
shaft and screw it in place using the three Phillips screws taken off the
shaft in step 1.
7.
Slide the shaft and sensor back through the U-bolt.
8.
Align the sensor with north by pointing the small colored dot on outer
edge of the bottom of the sensor so it faces true north (Appendix
Determining True North and Wind Sensor Orientation
(p. A-1)
).
9.
Space the sensor about 25.4 cm (10 in) above the crossarm and tighten
down the U-bolt.
10.
Plug the cable into the
Temp/Sonic
connector on the enclosure. Ensure
that the plug is completely seated on the connector and the locking ring is
turned a quarter revolution clockwise.
5.5.6 Rain Gage
For accurate measurements, the rain gage needs to be installed so it is
horizontally level. A bubble level on the bottom of the inside of the rain gage
shows how vertical the pole was installed.
1.
Pull the gold funnel up and off of the top of the rain gage.
2.
Remove the rubber band holding the tipping mechanism in place
).
FIGURE 5-19. Remove rubber band from tipping mechanism
3.
Adjust the bolts at the bottom of the pole as needed to get the bubble level
centered.
