DeWalt DW0822 - Field Calibration Check; Horizontal Beam Accuracy (Scan Direction); Horizontal Beam Accuracy (Pitch Direction)

ENGLISH
12
Field Calibration Check
Checking Accuracy – Horizontal Beam, Scan Direction (Fig. E)
Checking the horizontal scan calibration of the laser requires two walls at least 30' (9 m)
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.
1. Attach the laser to a wall using its pivot bracket. Make sure the laser is facing
straightahead.
2. Turn on the laser's horizontal beam and pivot the laser approximately 45˚ so that the
right‑most end of the laser line is striking the opposing wall at a distance of at least 30' (9
m). Mark the center of the beam (a).
3. Pivot the laser approximately 90˚ to bring the left‑most end of the laser line around to
the mark made in Step 2. Mark the center of the beam (b).
4. Measure the vertical distance between themarks.
• If the measurement is greater than the values shown below, the laser must be serviced at
an authorized servicecenter.
Distance
Between Walls
Allowable Distance
Between
a
and
b
30' 1/8"
40' 5/32"
50' 7/32"
Distance
Between Walls
Allowable Distance
Between
a
and
b
9.0 m 3.1 mm
12.0 m 4.2 mm
15.0 m 5.2 mm
Checking Accuracy – Horizontal Beam, Pitch Direction (Fig. F)
Checking the horizontal pitch calibration of the laser requires a single wall at least 30' (9
m) long. 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.
1. Attach the laser to one end of a wall using its pivotbracket.
2. Turn on the laser's horizontal beam and pivot the laser toward the opposite end of the
wall and approximately parallel to the adjacentwall.
3. Mark the center of the beam at two locations (a, b) at least 30' (9m)apart.