9
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, defl ect 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 fl ow 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.
Setting up the Anemometer (Wind Sensor)
1. Assemble the wind cups and wind vane to the anemometer arm
2. Attach the assembled anemometer to the base.
3. Insert two 2 x UM-3 or “AA” size 1.5 V batteries into the battery holder in the base.
4. Mount the anemometer onto a vertical surface, using the fi ttings provided.
5. To allow the main console unit to fi nd 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 has designed. It will be as a default setting after
changing the batteries.
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 fl ow and will attenuate readings.
- Aim for maximum exposure of the anemometer to the commonest wind directions in your area.
- The offi cial mounting location for anemometers is 10m (33 ft) above ground level in a clear
unobstructed
location.
GB/IE
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