Kapro Prolaser 852G Manuel D'utilisation page 14

This laser level left the factory fully calibrated.
Kapro recommends that the user will check the accuracy of the
laser periodically, or if the unit falls or is mishandled.
To do so first check the height accuracy of the horizontal line,
then check the levelling accuracy of the horizontal line, and
finally check the leveling accuracy of the vertical line.
Checking the Height Accuracy of the Horizontal Line.
(Up and down deviation)
1) Set up the laser on a tripod or on a solid surface between
two walls A and B, approximately 5 meters apart.
2) Position the laser level approximately 0.5 meter from wall A
3) Unlock the pendulum and press the button to project the
horizontal and the vertical cross lines towards wall A.
4) Mark on the wall the center of the cross lines as a1
(see figure # 1).
A
a1
x
0.5 m
14
FIELD CALIBRATION TEST
approximately 5m
Figure # 1
B