Operation Manual
12
77-320 / 77-321
Horizontal Beam Accuracy
(See fi gure
L
)
•
L
1
Place laser tool as shown with laser ON. Aim vertical
beam towards the fi rst corner or a set reference point.
Measure out half of the distance D
1
and mark point P
1
.
•
L
2
Rotate laser tool and align front vertical laser beam
with point P
1
. Mark point P
2
where the horizontal and
vertical laser beams cross.
•
L
3
Rotate laser tool and aim vertical beam towards the
second corner or set reference point. Mark point P
3
so that
it is vertically in line with points P
1
and P
2
.
•
L
4
Measure the vertical distance D
2
between the highest
and lowest point.
• Calculate the maximum offset distance and compare to D2 .
• If D
2
is not less than or equal to the calculated
maximum offset distance the tool must be returned to
your Stanley Distributor for calibration.
Maximum Offset Distance:
= 0,2
mm
m
x D
1
m
Maximum
= 0,0024
in
ft
x D
1
ft
Compare: (See fi gure
L
4
)
D
2
≤ Maximum
Example:
• D
1
= 5 m, D
2
= 0,65 mm
• 0,2
mm
m
x 5 m = 1,0 mm (maximum offset distance)
• 0,65 mm ≤ 1,0 mm (TRUE, tool is within calibration)
Level Beam Accuracy
(See fi gure
K
)
•
K
1
Place laser tool as shown with laser ON. Mark point
P
1
at cross.
•
K
2
Rotate laser tool 180° and mark point P
2
at cross.
•
K
3
Move laser tool close to wall and mark point P
3
at cross.
•
K
4
Rotate laser tool 180° and mark point P
4
at cross.
•
K
5
Measure the vertical distance between P
1
and P
3
to get
D
3
and the vertical distance between P
2
and P
4
to get D
4
.
• Calculate the maximum offset distance and compare to the
difference of D
3
and D
4
as shown in the equation.
• If the sum is not less than or equal to the calculated
maximum offset distance the tool must be returned to
your Stanley Distributor for calibration.
Maximum Offset Distance:
= 0,2
mm
m
x (D
1
m - (2 x D
2
m))
Maximum
= 0,0024
in
ft
x (D
1
ft - (2 x D
2
ft))
Compare : (See fi gure
K
5
)
D
3
- D
4
≤ ± Maximum
Example:
• D
1
= 10 m, D
2
= 0,5 m
• D
3
= 0,4 mm
• D
4
= - 0,6 mm
• 0,2
mm
m
x (10 m - (2 x 0,5 m) = 1,8 mm (maximum
offset distance)
• (0,4 mm) - (- 0,6 mm) = 1,0 mm
• 1,0 mm ≤ 1,8 mm (TRUE, tool is within calibration)