Berner BCLL TOP Notice D'utilisation page 21

Cleaning
Exterior plastic parts may be cleaned with a damp cloth. Although
these parts are solvent resistant, NEVER use solvents. Use a soft,
dry cloth to remove moisture from the tool before storage.
Field Calibration Check
CHECKING ACCURACY – HORIZONTAL BEAM, SCAN DIRECTION (FIG. 5)
Checking the horizontal scan calibration of the laser requires two
walls 9 m (30') apart. It is important to conduct a calibration check
using a distance no shorter than the distance of the applications for
which the tool will be used.
TABLE 1
1. Attach the laser to a wall using its pivot bracket, with the laser
facing straight ahead toward the opposing wall (0 degree
position).
2. Turn on the laser's horizontal beam and mark the beam
position on the opposing wall directly across from the laser.
Always mark the centre of the beam's thickness.
3. Pivot the laser to the extreme left (–90 degree position) and
mark the beam position on the opposing wall.
4. Pivot the laser to the extreme right (+90 degree position) and
mark the beam position on the opposing wall.
5. Measure the vertical distance between the lowest mark (A)
and the highest mark (B). If the measurement is greater than
the values shown in Table 1, the laser must be serviced at an
authorised service centre.
Distance Between
Walls
9.0 m (30')
12.0 m (40')
15.0 m (50')
Allowable Distance
Between Marks
3.0 mm (1/8")
4.0 mm (5/32")
5.0 mm (7/32")
ENGLISH
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