Automatic Grade Match - Spectra Precision Trimble UL 633N User Manual

Note: The laser starts to search for the receiver. A flashing Receiver and Lock symbol appears at the selected
axis and becomes solid when PlaneLok has been completed.
The HL760 display shows a flashing –PL– during the time the
laser is searching and adjusting the beam to the on-grade position.
When PlaneLok is complete, –PL– stops flashing at the HL760
display.
6. Exiting of PlaneLok can be done by pressing button 3 (ESC).
Vertical Set Up:
1. Set up the laser over the reference point
2. Attach the HL760 receiver (with the vertical adapter) to the next
reference point
3. Press and release the MENU button at the Standard Display and select PlaneLok (Pic 15). Press and release
button 4 to open the PlaneLok submenu; select the Y axis (Pic 16) or X-axis (Pic 17) or Y- and X-axis (Pic 18)
and press and release button 4 to start PlaneLok.
Note: When used in vertical mode, the receiver has to be placed with the photocell on the bottom side; for
Y-PlaneLok, align the top of the receiver to the top of the laser. The HL760 display shows a flashing – PL
– during the time the laser is searching and adjusting the beam to the on grade position. When PlanLok is
complete, - PL – stops flashing at the HL760 display.
4. Exiting of PlaneLok can be done by pressing button 3 (ESC).

6.4 Automatic Grade Match

The Grade Match mode can be activated in horizontal automatic and
manual mode.
In Grade Match mode, the laser can be used to measure the existing
grade value between two known elevation points (up to 150 m (490 ft)
located on one axis at each side of the laser
1. Set up the laser over the reference point.
2. A ttach 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. U se 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 (the alignment range for both axes is +/-40°).
4. Press and release the MENU button at the Standard Display and select Grade Match. (Pic 20)
5. S elect the desired Grade Match axis Y (Pic 21) or X (Pic 22) or Y and X (Pic 23) then press button 4 to
start Grade Match.
Note: The laser starts to search for the receiver. A flashing Receiver and angle symbol appears at the selected
axis and disappears when Grade Match has been completed.
10
Pic 20 Grade Match
Pic 21 Grade Match Pic 22 Grade Match
X-Axis
Y-Axis
Pic 19 PlaneLok
symbol
Pic 23 Grade Match
Y-/X-Axis
mm