5 Applications and Setups
48 DG711 and DG511 Pipe Laser User Guide
In a Manhole 5.4.15
The laser can be set up in a
manhole using a transit to
accurately set line. The transit is
plumbed over the laser on a mount
that clamps to the manhole. The
laser is projected down the center
of the pipe.
1Set the laser support in the
manhole and attach it to the
support.
2Adjust the laser to the chosen
height above the invert and on the
vertical centerline of the exit hole
for the proposed pipe.
3Point the laser towards the next
manhole.
4Hold an engineering rule on the
vertical centerline and adjust the
laser’s height to the desired height
above the invert.
Laser beam
30.5 cm pipe
15 cm radius
30.5 cm dia
(12 in.)
(6 in.)
(12 in.)