CST/BERGER LM30 Manual De Instrucciones página 9

CALIBRATION
All Laser Levels are calibrated during assembly and Q.A., howeverLaserLevel
owners should always check the calibration of the unit before use as the
settings may have changed with time or during transportation. It is also wise
to recheck the calibration of the Laser Level at regular intervals and also
prior to any critical measurements being performed. A 0.059"(1.5mm) Allen
key will be required to adjust the screws on the two leveling vials, and a
5/64" (2mm) one to adjust the LD vial.
Checking Horizontal Rotation Error
1. Mount and level the LaserMark® Wizard on a tripod and place approxi-
mately 50 feet (15m) away from a wall. Face the front (control button) to
the wall (Fig.8).
2. Turn power on and place the unit in "STOP" mode.
3. Manually rotate the laser beam onto the wall and mark as point A.
4. Loosen the Wizard from the tripod and rotate the instrument 180° so
that the back (battery side) now faces the wall.
Secure and re-level the instrument.
5. Again rotate the laser beam onto the wall and mark its position as point
B. No adjustment is necessary if the vertical difference between points
A and B is 1⁄8 inch (3mm) or less. Otherwise, adjust as follows.
Correcting Horizontal Rotation Error
1. Adjust the "Y" leveling screw until the laser beam rests midway
between A and B (Fig. 8). This will cause the "Y" vial bubble to shift
from center. Clockwise rotation will raise the beam; counterclockwise
rotation will lower the beam.
2. Center the "Y" vial bubble by adjusting the vial leveling screws with a
1.5mm hex key.
3. Recheck the accuracy of horizontal rotation by repeating steps 1-5 in
LM30 Rotary Laser • 9