LaserLiner PocketCross-Laser 2G Mode D'emploi page 16

Checking the vertical line
Position the device about 5 m from a wall. Fix a plumb bob with a line
of 2.5 m length on the wall, making sure that the bob can swing freely.
Switch on the device and align the vertical laser to the plumb line.
The precision is within the specified tolerance if the deviation between
the laser line and the plumb line is not greater than ± 2 mm.
Checking the horizontal line
Position the device about 5 m from a wall and
switch on the cross laser. Mark point B on the wall.
Turn the laser cross approx. 2.5 m to the right and
mark point C. Check whether the horizontal line
from point C is level with point B to within ± 2 mm. Repeat the process by
turning the laser to the left.
!
Regularly check the calibration before use, after transport and
after extended periods of storage.
Information on maintenance and care
Clean all components with a damp cloth and do not use cleaning agents,
scouring agents and solvents. Store the device in a clean and dry place.
Calibration
The meter needs to be calibrated and tested on a regular basis to ensureit
produces accurate measurement results. We recommend carrying out
calibration once a year. Contact your authorised dealer or else the
UMAREX-LASERLINER Service Department.
16
2,5 m
B
C