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

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