Vaisala WMS302 Betriebsanweisung PDF herunterladen (Seite 54)

User's Guide ______________________________________________________________________

52 ___________________________________________________________________M210630EN-B

vice versa) to avoid other objects shading the sensor. To facilitate

leveling/cleaning, installing at a height of 3 m (10 ft.) or less is

recommended.

Net Solar Radiation Sensor

Finding a suitable site for the product is important for getting

representative ambient measurements. The site should represent the

general area of interest.

On the Northern Hemisphere, the Net Solar Radiation Sensor should be

installed on the southern side of the mast (on the Southern Hemisphere,

vice versa) to avoid other objects shading the sensor. It is recommended

to install the sensor at least 1.5 meters (5 ft.) above the surface in order

to avoid shading effects and to promote spatial averaging. To facilitate

leveling/cleaning, installing at a height of 3 m (10 ft.) or less is

recommended.

Soil Temperature Sensor

Finding a suitable site for Soil Temperature Sensor is important for

getting representative soil temperature measurements. Measurement

site should be 1 m² and typical of the surface of interest. The ground

surface should be level with respect to the immediate (10 m radius) area.

Always examine the soil properties to make sure that there are no sharp

stones or other objects in the ground that could damage the fiberglass

tube of the sensor.

Soil Moisture Sensor

Finding a suitable site for the product is important for getting

representative ambient measurements. The site should represent the

general area of interest.

The soil water content measured by the ML2x sensor within one small

locality can be affected by:

- Variations in soil density and composition

- Stones close to the rods

- Roots (either nearby or pierced by the rods)

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Vaisala WMS302 Betriebsanweisung Seite 54