SKU 91179
For technical questions, please call 1-800-444-3353.
Page 8
Level Beam Accuracy:
1.
Set up the instrument with the Wall Mount (1) or Tripod (not included),
centered between two walls approximately 16 ft. apart. Please ensure the
Rotary Base is approximately on level.
2.
Press both the horizontal and vertical buttons to project a laser cross on wall
A. Mark point a1 at the intersection of the beams. Turn the cross line laser
180° and repeat on wall B, marking point b
1
at the intersection of the beams.
See Figure I.
3.
Move the instrument to the point 2 ft. from wall A and repeat step 2
1
marking
the intersections as a
2
and b
2
.
4.
Measuring the distance between a
1
and a
2
as Ia
1
-a
2
I, and b
1
, and b
2
as Ib
1
-b
2
I.
5.
If
I
I
a
1
-a
2
I-Ib
1
-b
2
I
I
<1mm, the accuracy is within tolerance. Otherwise, return
the instrument to a qualified technician for repair.
Horizontal Beam Level Accuracy (End to End)
1.
Set up the instrument with the Wall Mount (1) or Tripod (not included),
approximately 16 ft. from the wall. Please ensure the Rotary Base in
approximately level.
2.
Press both the horizontal and vertical buttons to project a laser cross on the
wall, mark point M
1
8 ft. from the intersection of the beams on the horizontal
beam.
See Figure J.
3.
Turn the instrument until the vertical beam has moved 16.4 ft. to the right
side, and mark M
2
8 ft. from the intersection of the beams on the horizontal
line.
4.
Measure the distance between M
1
and M
2
.
See Figure J.
5.
If the distance is less or equal to
2mm, the accuracy is within
tolerance. Otherwise, take the
instrument to a qualified
technician for repair.
Figure I
Figure J
8 ft.
8 ft.
16 ft.
M1
M2
REV 03/05
