Casella CEL Automatic weather station - Manual (Page 10)

Making weather observations,
Manual weather measurements,
Automatic weather measurements,
Voluntary observations network.
2.3 System Enclosure
The heart of the weather station system is the Sensus 24 channel data logger.
This data acquisition unit plus any additional electronic hardware are housed
within a protective IP68 enclosure that is designed to be wall or frame mounted.
2.3.1 Frame Mounted Systems
For frame mounted applications, please refer to the Frame Assembly Drawing
included. In the majority of applications, M8 rawl bolts may be used to secure
the frame (M8 rawl bolts require a 14 mm diameter mounting hole).
Ensure that correct size fasteners are used throughout the
assembly, as indicated on the assembly drawing.
1. Commence frame assembly with the two upright sections laying down.
The base end of the two upright sections can be identified by the larger
drilled holes.
2. Fasten the data acquisition enclosure to the frame, using the bolts and
washers shown in the drawing.
3. Securely mount the frame assembly by its four feet to a solid surface.
The frame should be mounted vertically and level.
Refer to Section 2.1 for advice on mounting and orientation for solar
panels.
2.3.2 Wall Mounting
The data acquisition enclosure is fitted with brackets which allow quick and safe
attachment to a suitable wall. The brackets may be secured to the wall using
M8 x 25 mm stud type rawl bolts.
Mark the hole positions by spotting through the mounting holes whilst
the unit is held in the desired position. The required hole size for the rawl bolts
is 14 mm diameter and 60 mm deep.
2.4 Lightning Protection
WARNING !
Lightning protection must be installed as directed in the
following procedure.
If the procedure is not followed completely the integrity of the
lightning protection circuit may be compromised which could
result in damage or destruction of the weather station system.
Note that the basic lightning protection system provided may
require upgrading in situations where soil and surface
conductivity is poor.
The Frame Assembly Drawing indicates the position of the lightning protection
items.
Assembly & Commissioning
Page 10 of 34
Automatic Weather Station
Assembly & Commissioning Handbook