Vaisala WMT700 Manuel d'utilisateur Page 33

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Chapter 2 ___________________________________________________________ Product Overview
Bird Cage
Vaisala recommends using the optional bird cage in areas with
large bird populations. The cage is designed to prevent large birds
from disturbing the measurement. It has been tested in a wind
tunnel with wind speeds of up to 40 m/s without noticeable effects
on the wind speed and direction measurement.
You can install the bird cage on a mounted WMT700 series wind
sensor without dismounting the wind sensor itself. In cold
climates, take into account that accumulated snow or ice on the
bird cage can disturb the measurement. In such conditions,
consider performing frequent visual inspections of WMT700 to
avoid ice or snow build-ups.
1005-028
Figure 8 Bird Cage
VAISALA ________________________________________________________________________ 31
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