-8-
Measuring Angles
Centre the measuring tool above the
point from which on the angle is to be
measured.
B
A
100’
(30 m)
a
1
b
d
1
B
A
3’
(1 m)
a
2
b
2
d
350
340
0
10
50
40
30
a
2
– d = b
2
a
1
– b
1
= d
Direct the measuring tool against point
A
.
B
A
100’
(30 m)
a
1
b
d
1
B
A
3’
(1 m)
a
2
b
2
d
350
340
0
10
50
40
30
a
2
– d = b
2
a
1
– b
1
= d
Rotate the horizontal circle
11
with the
zero point toward the reference mark
10
.
B
A
100’
(30 m)
a
1
b
d
1
B
A
3’
(1 m)
a
2
b
2
d
350
340
0
10
50
40
30
a
2
– d = b
2
a
1
– b
1
= d
Then direct the measuring tool against
point
B
. Read off the angle at the
reference mark
10
. Angle measured in the
above example: 45°.
Accuracy Check of the
Instrument
Check the levelling and indication
accuracy of the measuring tool each time
before using and after longer transport of
the measuring tool.
Checking the Circular Bubble Vial
Align the measuring tool with the levelling
screws
13
so that the air bubble is
positioned in the centre of the circular
bubble vial
8
.
Rotate the telescope by 180°. When the
air bubble is no longer in the centre of the
circular bubble vial
8
, the circular bubble
vial must be readjusted.
Readjusting the Circular Bubble Vial
Bring the air bubble of the circular bubble
vial
8
in a position between the centre and
the end position of the check by turning
the levelling screws
13
.
B
A
100’
(30 m)
a
1
b
d
1
B
A
3’
(1 m)
a
2
b
2
d
350
340
0
10
50
40
30
a
2
– d = b
2
a
1
– b
1
= d
Using the Allen key
17
, turn the adjusting
screws
12
until the air bubble is positioned
in the centre of the circular bubble vial.
B
A
100’
(30 m)
a
1
b
d
1
B
A
3’
(1 m)
a
2
b
2
d
350
340
0
10
50
40
30
a
2
– d = b
2
a
1
– b
1
= d
Check the circular bubble vial by rotating
the telescope by 180°. If required, repeat
the procedure or refer to an authorized
SitePro after-sales service.
Checking the Compensator
After aligning and focussing the
measuring tool, measure the height at
a reference point. Then press the lock
button of the compensator
9
and release
again. Measure the height again at the
reference point.
If both heights do not exactly match,
have the measuring tool repaired by an
authorized SitePro after-sales service.
Checking the Crosshair
A measuring distance of approx. 100 ft
(30 m) is required for the check.
B
A
100’
(30 m)
a
1
b
d
1
B
A
3’
(1 m)
a
2
b
2
d
350
340
0
10
50
40
30
a
2
– d = b
2
a
1
– b
1
= d
Set up the measuring tool in the centre
and levelling rods
A
and
B
at both ends of
the measuring distance.
