20
A1
A2
2.
1.
A3
A2
A2
A1
4.
3.
A3
A2
<
1 mm / 10 m = OK
Performing the calibration check:
3.
Position the device as near as possible to the wall at the height of
point A1.
4.
Turn the device through 180° and mark point A3. The difference between
points A2 and A3 is the tolerance.
Preparing the calibration check:
It is possible for you to check the calibration of the laser. To do this, position
the device
midway
between 2 walls, which must be at least 5 metres apart.
Switch the device on (
Laser cross ON
). The best calibration results are achie-
ved if the device is mounted on a tripod.
1.
Mark point A1 on the wall.
2.
Turn the device through 180° and mark point A2. You now have a hori-
zontal reference between points A1 and A2.
If points A2 and A3 are more than 1 mm / 10 m, the device is in
need of calibration. Contact your authorised dealer or else the
UMAREXLASERLINER Service Department.
!
The automatic sensor must be active in order to check calibration and
to complete device-levelling. See Section „Horizontal and vertical level-
ling“ about this.
!
GB
