The Vaisala WXT520 must be installed vertically with the arrow on its bottom plate pointing North for accurate measurements. Mount the sensor as needed on a pipe or mounting arm:
Figure 1: Vaisala WXT520 mounted vertically
Note: Make sure that the arrow on the sensor’s bottom plate is pointing North.
Figure 2: North arrow on bottom plate of Vaisala WXT520
With the arrow pointing toward North, the Vaisala WXT520 is properly installed.
REV: 13G18