Filter
Top Products
5 Applications and Setups
36 DG711 and DG511 Pipe Laser User Guide
Method 1: Using the Top Pole
Scale (TPS)
Grade rod set on top of the Fixed
Pole.
Note – First decide the laser
beam’s elevation above the invert.
1 Record the “cut-to-invert”
information from the grade hub.
2 Set up an automatic level and
measure its elevation (HI) above
the grade hub.
3 Set a grade rod on top of the
Fixed Pole and record the
measurement with the automatic
level.
4 Subtract the desired laser beam
elevation above the pipe’s invert.
5 Calculate the TPS setting.
Laser beam distance
above invert
Rod reading
on grade
hub
Rod reading on top
of fixed pole
Cut to invert
HIn