Topcon MACHINE CONTROL AG System Five, Operator'S Manual

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Laser Setup
Topcon AG System Five Operator’s Manual
3-2
Laser Placement
The physical location of the laser on the jobsite should be outside
the actual grading area, if possible. Topcon lasers feature a beam
range from 500 to 2000 feet, making placement of the laser outside
the grading area easier.
When choosing a location to place the laser transmitter, remember
the following two recommendations.
1. Minimize the working distance from the laser.
As the distance from the laser transmitter increases, grade
accuracy decreases. The following factors affect grade at long
distances:
• Accuracy of individual laser instruments
• Ground vibration from machinery working near the laser
transmitter
• Calibration error
• Curvature of the earth
• Laser movement from blowing wind
• Atmospheric conditions
2. Keep the laser transmitter as low as possible.
Keeping the laser transmitter low where you can reach it will
make setup and grade changing much easier. The transmitter
and laser receiver on the machine will also be more stable. On
windy days, you may need to anchor the tripod to keep the laser
from moving.
The laser transmitter does not need to be above the machinery
on the job. The benefits of keeping it low far outweigh the
momentary loss of the laser beam due to passing equipment.