GL700 Series Laser Transmitter

Automatic Alignment Modes 5
Using Axis-Alignment and Grade-Reverse
Modes 5.2
How axis-alignment mode works 52.1
Axis-alignment mode works by changing grade in the aligned-axis direction and
cross-axis directions then monitoring the elevation changes of the laser beam at the
receiver via the radio remote control. The desired axis-alignment angle can then be
calculated and the internal grade system “rotated” electronically to align the
simulated grade axis to the desired point.
Important things to know 52.2
Automatic Axis Alignment:
• Replaces the alignment scope and vernier base traditionally used
• Can be done from any side of any axis of the laser, even if grade is dialed into
the opposite axis that’s being aligned
• Automatically adjusts the direction the grade axis is pointing to the
receiver/remote location
• Electronically simulates rotating the laser on its base to match the hub
For Proper Operation:
• The desired grades must be entered into the laser
• The receiver must be at the correct alignment point
• The receiver must be between 20 m (60 ft) and 150 m (500 ft) from the laser
For Best Accuracy:
• The laser beam must strike the receiver's photocell. You do not need to adjust
the receiver to an on-grade reading.
• Set up the laser to align to the elevation reference the farthest away (such as the
centerline of the road)
• If the hubs are equally distant, align to the hub with the smallest amount of
grade
GL700 Series Laser Transmitter User Guide 39