Topcon MACHINE CONTROL AG System Five, Operator'S Manual

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Laser Transmitter Calibration
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3-5
Laser Transmitter Calibration
The laser transmitter is the grade control reference for your project.
Check it daily to ensure correct calibration and make adjustments as
necessary.
1. Set the laser on a tripod about 150' to 200' (45 to 60 meters)
from the laser sensor and turn on the laser’s power switch.
Confirm that grades are set to 0% slope and the laser is in
automatic level mode.
2. Set the laser sensor to “fine correction” mode, if applicable.
3. Raise or lower the sensor to get an on-grade signal (a solid
tone) (Figure 3-3). Record or mark the position on the grade
rod.
Figure 3-3. Raise Sensor
About 200ft