Foundation Construction - Campbell 012 Operator's Manual

SECTION 2. WEATHER STATION INSTALLATION

2.3 FOUNDATION CONSTRUCTION

The 012 Weather Station mounts on a cement
foundation as shown in Figures 2.3-1 and 2.3-2.
CSI provides a (1) metal template for locating
the anchor bolts and conduit in the base, (2)
four anchor bolts with two nuts each for leveling
the station, and (3) a conduit for
communication wire entry/exit at the base.
Step 1 - Dig an 18" square hole that is 12-13"
deep. These estimates are for heavy soils only;
light, shifting, or sandy soils require a deeper
base (and more cement). Excavate a slot for
the conduit elbow at about 9" below the surface
on the side where the communication cables
will enter. The slot should be oversized, making
it easier to install the conduit (Step 3).
Step 2 - Construct a wood form for the above
ground portion of the foundation. If the surface
area of the hole is 18", cut two 18" and two
21.5" boards from the 8' 2x4. Nail the boards
together to make an 18" (inside dimension)
square form. Center the form over the hole.
Step 3 - Three cubic feet of cement are
required to fill a 18" x 18" x 16" deep hole. This
amounts to approximately five (5) eighty pound
2-2
FIGURE 2.3-1. 012 Foundation Construction
(80 lb.) sacks of sakrete. Mix the cement. Stuff
a rag into one end of the conduit elbow to
prevent cement from clogging the conduit.
While holding the conduit in place pour the
cement. Examine the template to judge where
to position the top of conduit. About 1.5 inches
of conduit should be exposed above the cement
surface.
Step 4 - While the cement is setting, assemble
the template and anchor bolts as shown in
Figure 2.3-3. Set the anchor bolts and template
in the cement so the conduit is coming through
the conduit hole in the template. The threaded
end of the anchor bolts should extend a
minimum of 1.75" above the top of the concrete.
This will allow the template to rest on the lower
set of nuts about 1" above the surface of the
concrete (Figure 2.3-1). Adjustment of the
lower set of nuts will allow you to level the
template and later the 012 weather station. Do
not remove the template. It is used as the
bottom for the pedestal base when the weather
station is assembled.
Step 5 - Weather stations using a solar panel
for charging the battery need to insert a user
supplied 1 1/4" pipe into the cement pad (Figure
2.3-2).