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Selecting the Rotation speed
Quickly press and release button M opens the menu.
Repeatedly press the down arrow button until >>Rotation<< will be marked.
Press/release button E Both rotation values will be shown.
Repeatedly pressing buttons Up/Down toggles between 300 and 600 rpm (Default)
regardless if the unit is in automatic or manual mode.
Quickly press and release button E to confirm the selected rotation speed.
Automatic Grade Match
The Grade Match mode can be activated in horizontal automatic mode.
In Grade Match mode, the laser can be used to measure the existing grade value between two known elevation
points (up to 100 m (330 ft) located on the Y-axis of the laser.
1. Set up the laser over the reference point.
2. Attach the HL760 receiver to a grade rod. Check the laser’s elevation next to
the laser then position the receiver at the second point WITHOUT changing the
receiver’s elevation on the rod.
3. Use the sighting guides on the top of the laser to align the laser to the receiver.
Turn the laser on the tripod until it is roughly aligned to the receiver’s position
4. Press and release the M button at the Standard Display and select >>Grade Match<<.
5. Press and release the E button to open the Grade Match submenu; select the Y-axis
then press the E button to start Grade Match.
Note: The laser starts to search for the receiver. The HL760 display shows a flashing –GM–
during the time the laser is searching and adjusting the beam to the on-grade position.
When Grade Match has been completed, the HL760 goes back to the standard elevation
display. The remote control as well as the laser will display the final measured grade value.
Exiting of Grade Match can be done by pressing the Manual button where the unit goes
always back to automatic mode.
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