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7. CHECKS AND ADJUSTMENTS
7.1 CIRCULAR LEVEL
1) Adjust the leveling foot screws
to center the bubble in the
circular level
.
2) Turn the instrument 180
°
(or
200 gon). (Fig.7.1)
Fig.7.1
If the bubble is inside the
circle, no adjustment is nec-
essary. If the bubble shifts
from within the circle, adjust
as follows:
3) Compensate for one-half of
the shift by adjusting the lev-
eling foot screws
.
(Fig.7.2)
Fig.7.2
4) Eliminate the remaining half
shift with the circular level
adjusting screws
using
the hexagonal wrench
.
(Fig.7.3)
5) Turn the instrument 180
°
(or 200 gon). If the bubble
remains in the circle, adjust-
ment is complete.
Fig.7.3
5
4
5
3
15
Summary of Contents for C300
Page 1: ...SURVEYING INSTRUMENTS C300 C310 C320 C330 自動レベル Automatic Level 取扱説明書 OPERATOR S MANUAL ...
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Page 56: ...第 4 版 05 0806 4th ed 05 0806 Printed in China 2004 SOKKIA TOPCON CO LTD ...