Vertical Beam Accuracy
1.
Measure the height of a door jamb or
reference point to get distance D
laser unit as shown with laser ON. Aim
vertical beam towards door jamb or
reference point. Mark points P
P
as shown.
3
2.
Move laser unit to opposite side of door
jamb or reference point and align vertical
beam with P
3.
Measure the horizontal distances between
P
and the vertical beam from the 2nd
1
location.
4.
Calculate the maximum allowed offset
distance and compare to D
not less than or equal to the calculated
maximum offset distance the unit must be
returned to your Stanley Distributor.
Example: D
= 2 m, D
1
mm
0,6
x 2 m = 1,2 mm (maximum allowed offset distance)
m
0,5 mm ≤ 1,2 mm (TRUE, unit is within calibration)
77-121
. Place
1
, P
, and
1
2
and P
.
2
3
. If D
is
2
2
= 0,5 mm
2
D
P
2
1
2 x D
P
4
P
1
D
1
P
D
P
2
3
1
2 x D
1
P
D
2
Maximum Offset Distance:
mm
= 0,6
m
Max
in
= 0,0072
ft
Compare:
D
≤ Max
2
P
1
D
1
P
3
1
1
x D
m
1
x D
ft
1
17