Product Manual

CALIBRATION

Checking Calibration of the Y- and X-Axes

1. Set up the laser 30 m (100 ft) from a wall and allow it to level.

2. Set the grade to 0.000% in both axes.

3. Raise/lower the receiver until you get an on-grade reading for the

+Y axis. Using the on-grade marking notch as a reference, make

a mark on the wall.

Note: For increased precision, use the fine-sensitivity

setting (1.5 mm/ 1/16 in.) on the receiver.

4. Rotate the laser 180° (-Y axis toward the wall) and allow the laser

to re-level.

5. Raise/lower the receiver until you get an on-grade reading for the

–Y/axis. Using the on-grade marking notch as a reference, make

a mark on the wall.

6. Measure the difference between the two marks. If they differ

more than 3 mm at 30 m (1/8 inch at 100 feet), the laser needs

calibrating.

7. After checking the Y-axis, rotate the laser 90°. Repeat the above

starting with the + X axis facing the wall.