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5 Applications and Setups
52 DG711 and DG511 Pipe Laser User Guide
8 Adjust the laser and the
mounting plate until the bull’s-eye
target or “+” symbol on the
positive grade button is aligned
with the transit’s vertical crosshair.
9 Elevation – Determine the
correct elevation for the invert of
the proposed pipe.
10 Determine if you wish to set the
laser beam on the centerline of the
pipe or at a constant distance above
the flow line.
11 Adjust the laser until you are at
the chosen height above the invert.
12 Set an adjustable pipe target
(Model 936 or 956) so that the
target’s bull’s-eye is at the same
distance above the invert as your
laser beam.
13 Plunge the transit into the open
excavation and set a stake on line
6–8 m (20–25 ft) from the next
manhole.
14 Line – Look through the transit
at the next stake; align the laser to
the vertical crosshair of the transit
using the Line buttons on the laser
or the Wireless Remote
15 Lay Pipe – Set the target in
each new section of pipe and adjust
the pipe until the laser intersects
the target’s bull’s-eye while the
target is level.
Over the Top 5.4.17
The laser can be set on a tripod or
mounting plate above the
excavation on the pipe itself. A
laser target is mounted on a pole
and is adjusted to give the correct
distance from the beam to the pipe
invert. For accurate line control, a
level vial can be attached to the
pole to ensure that the target is held
vertically. This is an excellent
setup for shallow cuts for trenches
where water is present.
1 Attach the laser to a tripod
having a 5/8 inch x 11 thread.
No NoYe s
Transit
crosshairs
Laser spot