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DW089/DW089CG
19
E
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.
CHECKING ACCURACY – HORIZONTAL BEAM, PITCH DIRECTION (FIG. 6)
Checking the horizontal pitch calibration of the laser requires asingle
wall at least 9 m (30') long. It is important to conduct acalibration
check using adistance no shorter than the distance of the applications
for which the tool will be used.
TABLE 2
Distance Allowable Distance
Between Walls Between Marks
9.0 m (30') 6.0 mm (1/4")
12.0 m (40') 8.0 mm (5/16")
15.0 m (50') 10.0 mm (13/32")
1. Attach the laser to one end of awall using its pivot bracket.
2. Turn on the laser’shorizontal beam and pivot the laser toward the
opposite end of the wall and approximately parallel to the adjacent
wall.
3. Mark the centre of the beam at two locations (C, D) at least 9 m
(30') apart.
4. Reposition the laser to the opposite end of the wall.
5. Turn on the laser’shorizontal beam and pivot the laser back
toward the first end of the wall and approximately parallel to the
adjacent wall.
6. Adjust the height of the laser so that the centre of the beam is
aligned with the nearest mark (D).
7. Mark the centre of the beam (E) directly above or below the
farthest mark (C).
8. Measure the distance between these two marks (C, E). If the
measurement is greater than the values shown in Table 2, the laser
must be serviced at an authorised service centre.
DW089_DW089CG - User Manual - NA - May 2018.indd 19 5/25/2018 10:40:48 AM
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