Vaisala AWS330 - Manual (Page 93)

Chapter 4 _______________________________________________________________ Installation
VAISALA _______________________________________________________________________ 91
Installing Enclosure to Mast
In a mast installation, the enclosure is mounted below the sensor support.
The bottom of the enclosure comes roughly 1 m from the ground. Mast
mounting sets (number 7 in Figure 48 on page 92) are used for the
installation, and the enclosure door should face north (in the northern
hemisphere) to avoid solar radiation heating the enclosure.
1. Install the mast mounting sets. Tighten the sets lightly.
2. Screw the two uppermost screws and washers to the enclosure. Do
this for both mounting sets. Leave the screws out by about 10 mm.
3. Lift the enclosure to the upper mast mounting set so that the screws
slide to the mounting set slots (1).
4. Slide the lower mounting set to fit the lower screws of the
enclosure. Tighten the screws (5) and install rest of the mounting
set screws.
5. Loose the mounting sets and slide the enclosure to the desired
height (roughly 1 m from the ground to the bottom of the
enclosure). Make sure that the enclosure door is toward north.
Tighten all screws.
6. If you have removed the radiation shield before installation, attach
it again to the enclosure; see section Enclosure Radiation Shield on
page 90.
Alternative Installation Procedure
(More than One Person Available)
1. Screw the two front-most halves of the mounting set (7) using
screws and washers (5, 6) firmly to the enclosure. Do this for both
mounting sets.
2. Lift the enclosure and press the open mounting set halves firmly to
the mast.
3. Attach the remaining mounting set halves to the open halves using
the screws and washers (4, 3).
4. If you have removed the radiation shield before installation, attach
it again to the enclosure; see section Enclosure Radiation Shield on
page 90.