Measuring Horizontal Angle - Sokkia C300 Operator's Manual

5.2 MEASURING HORIZONTAL ANGLE

The horizontal circle graduations are annotated
every 10°(360°) or 10 gon (400 gon) in a clock-
wise direction. As a result, sighting is performed
from left to right.
1) Use the plumb bob
directly above the surveying point.
2) Sight point A, and set the horizontal circle
by turning the horizontal circle positioning ring
3) Sight point B and take the angle reading.
Example: 91.5°(or 91.5 gon) in (Fig.5.5) below .
to set up the instrument
14
Fig.5.3
Fig.5.4
Fig.5.5
-12-
to 0°
11
.
10