Vaisala WS425FG - Manual (Page 37)

Chapter 3 _______________________________________________________________ Installation
VAISALA_______________________________________________________________________ 35
0208-024 Figure 14 Adjusting the N-S Heads
The following letters refer to Figure 14 on page 35 :
A = The installer is too far to the left.
B = The installer is in line with the sensor.
C = The appearance of the sensor is shown when the installer is in
the correct position. The sensor, however, is not correctly
aligned.