Operation Manual

13
77-119
1. Place laser unit as shown with laser ON.
Measure distances D
1
and D
2
. Mark points
P
1
and P
2
.
D
3
P
3
P
1
P
1
P
2
D
1
D
2
P
3
P
2
D
1
D
2
P
1
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.
Up and Down Beam Accuracy
2. Rotate laser unit 180° keeping same
distances for D
1
and D
2
. Align downward
laser beam with point P
2
. Mark point P
3
.
3. Measure distance D
3
between points P
3
and P
1
.