Vaisala WAV151 - Manual (Page 12)

User's Guide ________________________________________________________
10 _____________________________________________________ M210294en-A
In general, any object of height (h) will not remarkably
disturb wind measurement at a minimum distance of 10
× h.
There should be at least 150 m open area in all directions
from the mast. Minimum distance between the mast and
obstacles is ten times the height of an obstacle. Refer to
Figure 2 on page 9.
0204-041
Figure 3 Recommended Mast Length on the Top of
Building
The recommended minimum length (marked with the letter
h in Figure 3 above) for the mast that is installed on the top
of a building is 1.5 times the height of the building (H).
When the diagonal (W) is less than the height (H) the
minimum length of the mast is 1.5
× W.
Installation Procedure
Mounting
Sensor installation is most convenient when you use a
Vaisala manufactured cross arm for mounting the sensor.