AEM Lambrecht METEOROLOGY, Руководство пользователя

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LAMBRECHT meteo | AEM | METEOROLOGY
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Versions
The family of METEOROLOGY sensors includes the heatable sensors for wind speed type 14576 and wind direction
type 14566.
Measuring elements
CUP ROTOR
The three-armed cup rotor is set into rotation by the wind. The number of rotations is a measure of the wind
speed. The design features of the cup rotor, which are permanently monitored by quality management during the
manufacturing process, ensure optimum linearity.
WIND VANE
The single-bladed wind vane has a long protrusion, so that even at low wind speeds the vane deflects according
to the wind direction. The size and shape of the wind vane is optimized for a low starting value, while achieving an
excellent compromise in terms of dynamic properties (inertia, natural frequency).
Installation wind vane
1. First, the wind vane is placed on the sensor. It can only be fixed in one direction on the sensor with the two captive
screws.
2. Now the cable with the mounted coupling socket is pulled through the mounting mast with a diameter of approx.
50 mm.
3. The plug-in connection is made and secured by screwing.
4. Then the sensor is placed on the mast.
5. To align the sensor to the north, the two points on the sensor housing and the dome are positioned one above the
other and, if necessary, fixed with an adhesive strip.
6. This allows a point determined in the south to be targeted via the sword of the wind vane and the fastening screw
to be tightened in this position using the enclosed Allen key (4 mm).
Putting into operation
The wind can be represented by a vector quantity. For a complete description of the wind it is necessary to specify its
speed and direction. The two components are subject to spatial and temporal variations; thus, strictly speaking, they
are valid only for the site where the measuring instrument is put up. We therefore recommend to select the place of
installation very carefully.