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Chapter 4
: Preparations before measurements
4.1.
Unpacking and storing instruments
Unpacking
Lay down the carrying case gently with the top side facing up. Open the lock
and unpack and take out the instrument.
Storage
Cover the telescope cover. Make sure that the vertical clamping screw and
the level bubble faces upwards. Lay down the instrument into the carrying case
(with objective lens of the telescope facing downwards). Tighten the vertical
clamping screw gently box, then lock the case.
4.2.
Set up the instrument
Put the instrument on the tripod and center the base of the tripod head.
Then lock the tripod screw to secure the instrument to the tripod.
4.2.1.
Using plumbs to center and level (align)
1)
Set up the tripod
①
Position tripod legs so that the plummet is aimed to the
ground mark point. Turn the focusing ring of the optical plummet to focus.
②
Make sure that the center of the tripod top is right above the station.
③
Secure the tripod on the ground with your feet.
2)
Install the instrument onto the tripod. Mount the instrument on the
tripod head. Support it with one hand. Tighten the centering screw on the
bottom of the unit to make sure it is secured to the tripod.
3)
Using the circular level to level the instrument
①
Twist and adjust the two leveling screws, A and B on the bottom of the
instrument until the bubbles of the circular level move to the line perpendicular
to the center line of screws A and B.
②
Twist and adjust leveling screw C to move the bubble to the center of the
circular level.
4)
Using the plate to precisely level the instrument
①
Loosen the horizontal locking screw and turn the instrument around until
the plate level is perpendicular to a line shaped with screws A and B. Adjust screws
A and B to make the bubble in the center of the level.
Содержание Total Station ATS-120 Series
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