Campbell Scientific ET107 Evapotranspiration Monitoring Station - Manual (Page 32)

ET107 Weather Station
The wind vane can be easily damaged if dropped or
bent. Leave the wind vane in the protective cardboard
sleeve until it’s ready to be installed.
2. Remove the alignment screw at the base of the 034B-ET (FIGURE 2-12).
Insert the 034B into the 034B Mounting Shaft. Align the hole in the shaft
with that in the 034B base and replace the screw. Do not overtighten the
alignment screw. Do not remove the shoulder screw at this time.
3. Insert the mounting shaft through the U-Bolt on the sensor arm. Adjust
the mounting shaft so that the cable and connector coming out the end of
the sensor arm can plug easily into the mating connector on the 034B.
Lightly tighten up the U-bolt clamp nuts. See FIGURE 2-11.
4. See FIGURE 2-12 for the alignment sticker on the 034B. Align the arrow
on this sticker with True South. The counterweight will also be pointing
due south. Make sure the sensor cable is not being pinched by the U-bolt.
Tighten up the U-bolt to hold the sensor firmly. Plug the cable into the
mating connector on the sensor. Plug must be fully seated and locking
ring turned fully clockwise.
5. Install the wind vane using the Allen wrench supplied with the vane.
Wind vane should be perpendicular to the crossarm. Put the MetOne
sticker over the wind vane Allen screw opening.
6. Remove and keep the shoulder screw. The shoulder screw will be needed
for replacing bearings and/or potentiometer. The wind vane and cups
should turn freely.
2.4.5 Gill WindSonic 2-D Ultrasonic Wind Sensor (Wind Sensor Option –
GW)
2.4.5.1 Changing the Jumper
Jumper is set at the factory if Gill WindSonic is ordered with the
station.
When the WindSonic1-ET is added to the ET107, a jumper setting must be
changed. The procedure to change the jumper follows:
1. Remove the cover of the enclosure.
2. Disconnect the 10588 ribbon cable from the CS I/O port.
3. Use a Philips screwdriver to loosen the four screws shown in FIGURE
2-13.
WARNING
NOTE
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