Laser Setup
Topcon AG System Five Operator’s Manual
3-16
Other Factors Affecting Quality
Along with laser drift due to mechanical and atmospheric drift,
wind, dust, fog, and the curvature of the earth affect the accuracy
and quality of grading.
Wind
To minimize the affects of wind:
• Secure and stabilize the tripod. Tie the tripod down in gusty
wind conditions. In extreme conditions, build a mound and
place the laser on a shorter tripod.
• Re-position vertical-mounted screw jacks on laser trailers
to be at an angle.
• Four-legged trailers are sometimes difficult to get stable,
especially in hard dirt. Wiggle the trailer until all legs are
secure and have even pressure on the ground.
• Minimize the working distance from the laser transmitter.
Use multiple lasers if needed.
• Increase the Averaging function on the System Five Control
Box. If the implement then begins to “porpoise”—i.e.,
leaving long waves—lower the Averaging setting. See
“Averaging” on page 2-25 for information on this setting.
Dust
Dust can block the transmission of the laser beam. A good rule
of thumb in dusty conditions: if you can see the transmitter, the
receiver can see the beam.
• Work haul paths in a cross-wind direction.
• In extreme dust conditions, try relocating the transmitter
up-wind of the work area.
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