27
Aligning Direction of Grade
When using the laser with a percent of grade entered, the laser
must be properly aligned so the slope of the laser beam is
parallel to the desired direction of grade.
The sighting collimator on top of the instrument is calibrated to
the grade axis of the laser beam. Follow the steps below to align
the laser to the desired direction of grade:
1
Establish a target line parallel to desired direction of grade.
2
Set up the laser over this line (drop a plumb bob from the
tripod mounting screw).
3
Rough align the instrument to the direction of grade. Make
sure it is properly oriented for the grade to be entered,
positive or negative. (See page 26)
4
Place a rod or other target down range on the target line.
5
While sighting through
the collimator, adjust the
instrument until the sight
is aligned with the target.
(See the figures on the
right.)
ESC
MENU
ENT
X/Y
Target
Plus direction
Minus direction
Summary of Contents for RL-200 1S
Page 1: ...INSTRUCTION MANUAL ROTATING LASER RL 200 2S 31492 90030 ESC MENU ENT X Y...
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Page 55: ...53 Detective range...
Page 63: ...61 Region Country Directives Regulations Labels Declarations California U S A Proposition65...
Page 64: ...62 California and NY U S A Recycling Batteries...
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