La Crosse Technology WS- 1910TWC-IT Instruction Manual page 33

Check that the wind-cups can rotate freely before fixing the unit. For correct and accurate
readings, it is important to mount the sensor with the cups on the bottom. The wind
sensor should now be mounted using the screw or cable tie provided onto a solid wall/
panel mast or mast to allow the wind to travel around the sensor unhindered from all
directions (ideal mast size should be from diameter 0.62" to 1.29" (16mm to 33mm). Do
not over tighten the mounting bracket.
Once the wind sensor is fixed onto the mast, connect the cable to the corresponding
thermo-hygro sensor socket so that operating power supply can be received and data can
be transmitted to the base station. Secure cord from blowing. Do not use staples. Using
PVC pipe or metal as a mast may cause static. Wood is recommended.
The Rain Sensor (optional)
Horizontal panel
For best results, the rain sensor should be securely mounted onto a horizontal surface
about 39.37" (1 meter) above the ground (or higher) and in an open area away from trees
or other coverings where rainfall may be reduced causing inaccurate readings.
When securing into place, check that rain excess will not collect and store at the base of
the unit but can flow out between the base and the mounting surface (test by pouring
clean water). Do not tighten screws past just snug.
After mounting the rain sensor and placing battery, the rain sensor is now operable. For
testing purposes, very slowly pour a small amount of clean water into the rain sensor
funnel. The water will act as rainfall and will be received and displayed at the base station
i.e. when the reading interval is reached.
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