User Manual

Using Grade-Matching Mode
How Grade-Matching Mode Works
Grade-matching mode works by changing grade in the selected axis direction
then monitoring the elevation changes of the laser beam at the receiver via the
radio remote control. Once the laser “finds” the center of the receiver, the
resultant grade is calculated and stored in the laser and two-way remote
control.
Important Things to Know about Grade-Matching Mode
Grade-Matching Mode
• Automatically adjusts the grade of the selected axis to match an unknown
grade
• Searches for and finds “on-grade” of the mounted receiver within a 1.5%
grade range of the final grade (starting with the beam centered on the
receiver isn’t necessary)
• Stores and displays the resultant grade on the remote and laser
For Proper Operation
• The receiver can be removed after alignment, and the resultant grade
remains in the laser
• One or Both axes can be grade matched in sequence
• The initial grade MUST be within 1.5% of the final grade before starting
Practical Application for Grade-Matching Mode, One-Axis Setup: General
Construction Setup
If the ∠ axis is not at 0% grade, the laser has to be aligned in automatic axis
alignment mode with control hub #2 before the grade-matching mode can be
activated.
1. Set up the laser over the reference point.
2. Using the sighting guide as a guide, rough align the laser with slope-
control hub #2.