HORIZONTAL BEAM LEFT/RIGHT TILT
Position the instrument on the floor x distance from front of the device to the vertical wall as shown.
Rotate the instrument on the bracket to the left so that the right side of the beam is projected on
the wall directly across from the instrument, mark the vertical location on the wall (a). Rotate the
instrument to the right and repeat marking the vertical location of the left side of the beam (b). The
maximum distance (delta) between a and b is shown in the table below.
HORIZONTAL BEAM OUT-OF-PLANE TILT
Position the instrument parallel to a wall and project a beam along the wall, from left to right as
shown. Mark two locations (a, b) along the beam separated by distance x. Position the laser at the
other side of the wall and project the beam back through mark b, from right to left as shown, and
mark position c. The maximum distance (delta) between a and c is shown in the table below.
a
VERIFYING ACCURACY OF LASER LINES
a
x
HORIZONTAL BEAM LEFT/RIGHT TILT
Distance From Wall (x)
15' (4.6 m)
30' (9.1 m)
x
b
HORIZONTAL BEAM OUT OF PLANE TILT
Distance From Wall (x)
10' (3.1 m)
25' (7.6 m)
a
x
b
Delta
~1/16" (1.5 mm)
~1/8" (3 mm)
x
a
c
Delta
~1/16" (1.5 mm)
~1/8" (3 mm)
b
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