Vaisala WMT700 - Manual (Page 77)

Chapter 4 ________________________________________________________________ Installation
1001-018
Figure 33 Incorrectly Aligned WMT700 and Resulting
Offset Error
where
N = Correct direction for true north
α = Wind direction offset error caused by the misalignment of
WMT700
Alignment Tuning
If mechanical alignment of WMT700 cannot be done, you can
correct the wind direction offset error by using an offset
adjustment command. For instructions, see Appendix D,
Configuration Parameters, on page 205.
Installing Bird Cage
To install the bird cage, you need to position the bird cage on top
of the wind sensor and secure the kit with two straps. You can
order the cage as an accessory from Vaisala; see Table 62 on page
192. The required straps are provided with the bird cage.
CAUTION Make sure that you do not damage the array when installing the bird
cage.
VAISALA ________________________________________________________________________ 75