Wind/Thermo-Hygro Sensor - La Crosse Technology 308-807 Operation Manual

WIND/THERMO-HYGRO SENSOR

Positioning the wind/thermohygro sensor:
Place the Wind/Thermohygro sensor as high as you can install it. Generally, 6 ft. above the peak of the
roof (or more) is required for accurate readings. Since this sensor requires batteries to provide power,
you may need it more accessible then a traditional roof mount would allow.

Cups should be below the directional vane.

NOTE: You will need to change batteries occasionally.

The Wind/Thermohygro sensor should be within 246 ft. (75 meters, open air) from the wireless
display. Reduce distance by half for every obstruction between the sensor and the wireless
display.

AVOID: Mounting the sensor on transmitting antennas, or using PVC pipe (unless electrical
grade) to avoid interference.

The best location for the anemometer is on a mast in an open area on top and sides for 50 feet,
or above roof level on the building where the monitor is located.

Ensure that all of the sensors data is received at the intended mounting locations before
mounting holes are drilled.
NOTE:Be sure not to overtighten bolts to mast, as they may crack the mastholder. Masts should not be
more than 1 1/4 inchs in diameter to avoid blocking wind.
Ground Mount: Place at least 6 feet up on a pole in an open area. Higher is better. The
wind/thermohygro sensor should be the highest item in the immediate area. An ideal location to mount
the wind/thermohygro sensor is away from all obstacles that will block wind activity, such as trees and
houses. A 50 –foot clearance in all directions is best.
NOTE: The international standard height for
aboveground, with no obstructions at or above this level. Your local reporting station is likely using this
level for measurements.
Roof Mount: In most cases, at least 6 ft above the peak of the roof (or more) is required for accurate
readings. (Avoid tall trees or other obstructions that may block or reflect the wind). A 50 –foot clearance in
all directions is best. For more information on wind speed and obstructions, check this site:
http://www.motiva.fi/myllarin_tuulivoima/windpower%20web/en/tour/wres/obst.htm.
MOUNT: To mount the wind/thermohygro sensor, you need a mast (not supplied) about 1 – 1.25 inches
(2.54 – 3.1 cm) in diameter, and the hardware necessary to fasten it to the mounting location.

If necessary, mount and ground the mast as directed in the instructions provided by the mast.

Place the supplied U-shape metal plates around the mast. Insert 4 of the supplied Hex screws
through the holes of the U-shape plates and the holes on the anemometer's mounting bracket.

The wind vane should be above the wind cups and the metal bar of the anemometer is level

Tighten the supplied Hex nut onto both ends of each screw
wind measurement
DIRECTIONAL VANE
WIND CUPS THERMOHYGRO SENSOR
devices is 10 meters (33 feet)
HEX
SCREWS
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