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9.
If your measurement is greater than the Allowable
Distance Between P1 & P3 for the corresponding
Distance Between Walls in the following table, the laser
must be serviced at an authorized service center.
Distance Between
Walls
6.0m (20')
9.0m (30')
15.0m (50')
23.0m (75')
10.
Repeat steps 2 through 8 to check the accuracy of the right
dot and then the left dot, making sure that the laser dot you
are testing is the laser dot facing each wall.
Plumb Dot Accuracy
Checking the plumb calibration of the laser can be most
accurately done when there is a substantial amount of vertical
height available, ideally 25' (7.5 m), with one person on the floor
positioning the laser and another person near a ceiling to mark
the dot created by the beam on the ceiling.
1.
Mark point P1 on the floor (Figure
2.
Turn the laser ON and press
above, ahead, and below the laser.
3.
Place the laser so that the down dot is centered over point
P1 and mark the center of the up dot on the ceiling as point
P2 (Figure
).
F
1
4.
Turn the laser 180°, making sure that the down dot is still
centered on point P1 on the floor (Figure
5.
Mark the center of the up dot on the ceiling as point P3
(Figure
).
F
2
6.
Measure the distance between points P2 and P3.
7.
If your measurement is greater than the Allowable
Distance Between P2 & P3 for the corresponding
Distance Between Ceiling & Floor in the following table,
the laser must be serviced at an authorized service center.
Distance Between
Ceiling & Floor
4.5m (15')
6m (20')
9m (30')
12m (40')
8
Allowable Distance
Between P1 & P3
3.6mm (9/64")
5.4mm (7/32")
9mm (11/32")
13.8mm (9/16")
).
F
1
once to display dots
).
F
2
Allowable Distance
Between P2 & P3
1.8mm (1/16")
2.4mm (3/32")
3.6mm (9/64")
4.8mm (3/16")
Level Dot Accuracy - Square
Checking the squareness of the laser beams requires a room
at least 35' (10m) long. All marks can be made on the floor
by placing a target in front of the level or square beam and
transferring the location to the floor.
NOTE: To ensure accuracy, the distance (D1) from P1 to P2, P2
to P3, P2 to P4, and P2 to P5 should be equal.
1.
Mark point P1 on the floor at one end of the room, as
shown in Figure
.
G 1
2.
Turn the laser ON and press
ahead, below, and to the right and left of the laser.
3.
Place the laser so that the down dot is centered over point
P1 and make sure the front dot points toward the far end of
the room (Figure
).
G 1
4.
Using a target to transfer the front level dot location on the
wall to the floor, mark point P2 on the floor and then point P3
on the floor (Figure
G 1
5.
Move the laser to point P2 and align the front level dot to
point P3 again (Figure
G 2
6.
Using a target to transfer the front level dot location on the
wall to the floor, mark the location of two square beams as
points P4 and P5 on the floor (Figure
7.
Turn the laser 90° so the front level dot aligns to point P4
(Figure
).
G 3
8.
Mark the location of the first square beam as point P6 on
the floor as close as possible to point P1 (Figure
9.
Measure the distance between points P1 and P6
(Figure
).
G 3
10.
If your measurement is greater than the Allowable
Distance Between P1 & P6 for the corresponding
Distance (D1) in the following table, the laser must be
serviced at an authorized service center.
Distance (D1)
7.5m (25')
9m (30')
15m (50')
11.
Turn the laser 180° so the front level dot aligns to point P5
(Figure
).
G 4
twice to display dots above,
).
).
).
G 2
G 3
Allowable Distance Between
P1 & P6
2.2mm (3/32")
2.7mm (7/64")
4.5mm (3/16")
).
