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PREPARATION FOR MEASUREMENT
2.1 UNPACKING AND STORE OF INSTRUMENT
·
Unpacking of instrument
Place the case lightly with the cover upward, and unlock the case, take out the instrument.
·
Store of instrument
Cover the telescope cap, place the instrument into the case with the vertical clamp screw and
circular vial upwards (Objective lens towards tribrach), and slightly tighten the vertical clamp
screw and lock the case.
2.2 SETTING UP THE INSTRUMENT
Mount the instrument to the tripod. Level and center the instrument precisely to ensure the
best performance.
Operation Reference:
1 Leveling and Centering the Instrument by plumb bob
1) Setting up the tripod
①
First, extend the extension legs to suitable length, make the tripod head parellel to the
ground and tighten the screws.
②
Make the centre of the tripod and the occupied point approximately on the same plumb
line.
③
Step on the tripod to make sure if it is well stationed on the ground.
2)
Attaching the instrument on the tripod
Place the instrument carefully on the tripod head and slide the instrument by loosing the
tripod screw. If the plumb bob is positioned right over the center of the point, slightly tighten
the tripod.
3)
Roughly leveling the instrument by using the circular vial
①
Turn the leveling screw A and B to move the bubble in the circular vial, in which case
the bubble is located on a line perpendicular to a line running through the centers of the two
leveling screw being adjusted .
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Содержание STS-750
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