6
6
Section of
measurement
„S“
Max. tolerable
Distance A – A1
5 m
2 mm
10 m
4 mm
15 m
6 mm
20 m
8 mm
.
5.2 Checking the accuracy of the vertical laser line
(1) Select a door frame of at least a 2.5 m open space on side of the door (picture 3).
(2) Place the device with a 2.5 m distance from the middle of door frame on point A.
(3) Disengage the transport safety lock, press
button 1
. The device levels out
automatically.
(4)
Mark the point „B“centered underneath the door frame.
(5) Mark a point
„C“ within a 5 m distance from point „A“.
(6) Mark a point
„D“within the door lintel.
(7) Place the device on the point
„C“ and set up the Laser line exact on the point „B“ .
(8) Measure now the gap the laser line from the marked point
„D“within the door lintel.
If the gap is less than 1 mm, the device is conform and respects the tolerances.
5.3 Checking 90° angles between laser beams
Picture 3
