
-15-
allow it to level and mark the
center point of the laser beam on
wall
B
(point
H2
).
165-ft (50 m)
H1
Y1
165-ft (50 m)
H1
H2
Y2
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
B
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
H2
B
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
D
H3
H2
B
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
H2
B
D
180°
165-ft (50 m)
H1
X1
165-ft (50 m)
H1
H2
X2
D
180°
180°
180°
180°
10°
45°
90°
RPM
4250HV
– Without turning the instrument,
position it close to wall
B
by
moving the tripod.
165-ft (50 m)
H1
Y1
165-ft (50 m)
H1
H2
Y2
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
B
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
H2
B
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
D
H3
H2
B
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
H2
B
D
180°
165-ft (50 m)
H1
X1
165-ft (50 m)
H1
H2
X2
D
180°
180°
180°
180°
10°
45°
90°
RPM
4250HV
– After instrument levels, align the
height of the instrument so that the
center point of laser beam is exactly
on point
H2
of wall
B
.
– Rotate the instrument by 180°
(without changing the height),
allow it to level and mark the
center point of the laser beam on
wall
A
(point
H3
).
– The mark of point
H3
should be
marked in such a way that it is as
vertical as possible (above or below)
of point
H1
.
165-ft (50 m)
H1
Y1
165-ft (50 m)
H1
H2
Y2
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
B
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
H2
B
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
D
H3
H2
B
100-ft (30 m)
1.5-ft
(0.5 m)
A
H1
H2
B
D
180°
165-ft (50 m)
H1
X1
165-ft (50 m)
H1
H2
X2
D
180°
180°
180°
180°
10°
45°
90°
RPM
4250HV
The difference
D
of both marked
points
H1
and
H3
on wall
A
is the
actual deviation of the instrument for
the measured axis.
The value of
D
(deviation) should be
less than 3/16-in (4mm).
If the instrument should exceed
the maximum deviation in anyone
of the measuring procedures, have
it checked at a SitePro after-sales
service agent.