Kapro Prolaser 883, Руководство пользователя

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3) Set up the laser on a tripod or on a solid surface in front of the
wall, at a distance of approximately 2 meters.
4) Unlock the pendulum and press the button to project the
vertical forward beam (#4) towards the plumb line.
5) Turn the laser, so the vertical beam will merge with the
plumb line below the hanging point.
6) Mark point
a2 on the wall, in the middle of the vertical beam
at the same height as a1 . (see figure # 6).
a1
Figure # 5
# הנומת 5
X
approximately 3m