CST/BERGER CST202, Instruction Manual

Page: 17 / 117

12
6
．
SETTING UP THE INSTRUMENT
Caution: Mount the battery in the instrument before performing this
operation because the instrument will tilt slightly if the battery is mounted
after leveling.
（
1
）
Make sure the legs are spaced at equal intervals and the head is
approximately level. Set the tripod so that the head is positioned over the
surveying point. Make sure the tripod shoes are firmly fixed in the ground.
（
2
）
Place the instrument on the tripod head. Supporting it with one hand, tighten
the centering screw on the bottom of the unit to make sure it is secured to
the tripod.
（
3
）
Rough Level the instrument with the circular level
a. Rotate the foot screws A and B, make the bubble to the vertical line of
the foot screw center line.
b. Rotate the foot screw C, make the bubble in the center.
c. Always turn the A & B screws in opposing directions. The bubble will
then go the direction your left thumb goes.
（
4
）
Fine Level the instrument with the plate level
：
a. Loosen the horizontal clamp to turn the upper part of the instrument until
the plate level is parallel to a line between
leveling foot screws A and B. Center the
air bubble using leveling foot screws A and
B. the bubble moves towards a clockwise
rotated leveling foot screw.
b. Turn the upper part of the instrument
though 90°(100g). The plate level is now
perpendicular to a line between leveling foot screws A and B. Center the air bubble
by using leveling foot screw C.
B
C
A
foot screw C