La Crosse WM9280 Meteotime, User Manual

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PLACEMENT TIPS:
• The rain sensor should be placed in an open area away from walls, fences, trees and other coverings which may
either reduce the amount of rainfall into the sensor, deflect the entry of wind-blown rain, or create extra precipitation
runoff. Trees and rooftops may also be sources of pollen and debris.
• To avoid rain shadow effects, place the sensor at a horizontal distance corresponding to two to four times the height
of any nearby obstruction.
• It is important that rain excess can flow freely away from the sensor. Make sure that water does not collect at the
base of the unit.
• The rainfall measurement mechanism utilizes a magnet, hence do not place any magnetic objects around the
proximity of the sensor.
2.2.3 SETTING UP THE ANEMOMETER (WIND SENSOR)
1. Assemble the wind cups to the anemometer arm.
2. Attach the assembled anemometer to the base.
3. Insert 2 x UM-3 or “AA” size 1.5V batteries into the battery holder in the base.
4. Mount the anemometer onto a vertical surface, using the fittings provided.
5. To allow the main console unit to find the direction which the wind vane is oriented, the following procedures are
required:
i. Insert the batteries
ii. Point the wind vane towards the north. Use a compass or map if necessary.
iii. Use a pin to press the “SET” key which is in the battery compartment of the wind sensor.
Note: Above procedure must be repeated for changing battery.
The “SET” will toggle the direction between two modes:
1. Let the wind direction as manufacturer design. It will be as a default setting after
2. Set the current direction as NORTH.
PLACEMENT TIPS:
• Check that wind can travel freely around the anemometer and is not distorted by nearby buildings, trees or other
structures.
• For better results, place the anemometer at least 3m above local structures and obstacles. The ground creates a
frictional effect to wind flow and will attenuate readings.
• Aim for maximum exposure of the anemometer to the commonest wind directions in your area.
• The official mounting location for anemometers is 10m (33 ft) above ground level in a clear unobstructed location.