The laser beam blinks twice every
en
10 seconds.
The laser beam blinks rapidly.
8. Checks
8.1 Checking the vertical (plumb) beam
1. Make a mark on the floor (a cross) in a high room (e.g. in a stairwell or hall-
way with a height of 5–10 m).
2. Place the tool on a level surface (floor).
3. Switch on the vertical beam.
4. Position the tool with the down beam on the center of the cross.
5. Mark the position of the vertical beam on the ceiling (attach a piece of
paper to the ceiling).
6. Pivot the tool through 90°. The reference beam must remain on the cen-
ter of the cross.
7. Mark the position of the vertical beam on the ceiling.
8. Repeat the procedure after pivoting the tool through 180° and 270°.
-NOTE-
The resulting 4 marks define a circle in which the intersection of the diag-
onals d1 (1 – 3) and d2 (2 – 4) marks the exact center of the plumb point.
Calculation of accuracy
Result=
Room height [m]
Result=
Room height [ft]
Printed: 07.07.2013 | Doc-Nr: PUB / 5070095 / 000 / 00
The batteries are almost
●
exhausted.
The tool cannot level itself
●
automatically.
10
(d1 + d2) [mm]
✕
4
30
(d1 + d2) [inch]
✕
4
(1) or
(2)