Campbell Scientific CM106K Tripod - Manual (Page 13)

CM106K Tripod
Prepare the area where the tripod will be installed. The tripod requires an area
approximately 11 ft (3.4 m) in diameter. Natural vegetation and the ground
surface should be disturbed as little as possible, but brush and tall weeds should
be removed.
Stand the tripod base up on end, and rotate the feet perpendicular to the legs.
Each leg has a clamp bracket with a bolt that locks the leg in place when
tightened.
2.2.1 Mounting on a Relatively Flat Area
Loosen one clamp bracket bolt at a time and extend each leg until the three legs
are at the same extension. With the legs extended, orient the tripod so that one
of the legs points South (assuming the instrument enclosure with -MM Mast
Mount bracket will face North). If the instrument enclosure has the -LM Leg
Mount bracket, orient the tripod so that the enclosure will mount to one of the
three leg mount positions on the tripod, facing the desired direction. The tripod
is typically plumbed after the mast has been installed, as described in Section
2.3.
2.2.2 Mounting on an Incline
Loosen the bolts on the clamp brackets. With the legs extended, orient the
tripod so that one leg points downhill and the other two legs point uphill. The
tripod is more stable with only one leg pointed downhill because the mast is
closer to the center of the footprint (see Figure 2-2). Tighten the bolts on the
clamp brackets to lock the legs in place.
The tripod is typically plumbed after the mast has been installed, as described
in Section 2.3.
[3.4m]
Ø132in
[3.4m]
Ø132in
One Foot Downhill
For Better Stability
GRADE
GRADE = 100% * (RISE/RUN) = 100% * tan(angle)
FIGURE 2-2. Comparison of one leg pointing downhill (right) versus
two legs pointing downhill
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