Operation Manual

14
77-122
Calibration
NOTE: The laser unit has been calibrated at the time of manufacturing. Periodically check
the accuracy of the laser unit to ensure that the calibrated specifications are maintained.
P
1
D
1
D
1
2
P
2
P
1
D
1
D
1
2
P
3
P
1
P
2
D
2
P
4
P
1
P
2
P
3
D
2
1. Place laser unit as shown with laser ON.
Mark point P
1
at cross.
Level Beam Accuracy
2. Rotate laser unit 180° and mark point P
2
at cross.
3. Move laser unit close to wall and mark
point P
3
at cross.
4. Rotate laser unit 180° and mark point P
4
at cross.