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2.3 Centering
.
2.3.1 Centering with Laser Plummet
coincides with ground mark point.Then tighten the center screw.
③Repeat leveling and two steps until the instrument keeps leveling and the
laser spot coincides with ground mark point when rotating alidade of
instrument in any direction.
④After centering,please turn off laser plummet to save power.
Press the key 【★】 to enter into the
display as shown in the left figure.
Operation Steps:
①Click the "target" button,and you can
turn on laser plummet and set it as
three levels of brightness.Thus,that
laser emits downwards can be seen.
② Loosen
the
tripod,and move the base plate on
tripod
head
until
18
center
screw
the
laser
spot
of
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