Selecting The Location - Vaisala HMW90 Serie Guide Rapide

Selecting the Location

The conditions at the location should represent well the
area of interest. Do not install the transmitter on the
ceiling. Avoid placing the transmitter near heat and
moisture sources, close to the discharge of the supply
air ducts, and in direct sunlight.
Plan the routing of the cable when selecting the
location. You can bring the cable to the transmitter
from above, or from the center opening of the
mounting base.
When bringing a cable through the wall,
note that the hole may also supply air from
outside the room into the transmitter. This
may affect the measurement readings. For
example, fresh concrete binds CO
cause low readings, especially in new
buildings. Seal the cable opening if
necessary.
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