LaserLiner PowerCross-Laser 8 G Manuel D'utilisation page 22

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 achieved if the device is mounted
on a tripod.
The automatic sensor must be active in order to check calibration and to complete
device-levelling. See Section „Horizontal and vertical levelling" about this.
1. Mark point A1 on the wall.
2. Turn the device through 180° and mark point A2.
You now have a horizontal reference between points A1 and A2.
1.
A1
2.
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.
3.
A1
4.
When A2 and A3 are more than ± 0,1 mm / m apart, an adjustment is
necessary. Contact your authorised dealer or else the UMAREX-LASERLINER
Service Department.
22
EN
A2
A2
A2
A2
A3