10 SETTING ATMOSPHERIC CORRECTION
10-10
2.2
儀器整置
Mount the instrument to the tripod. Level and center the instrument precisely to insure the
best performance. Use tripods with a tripod screw of 5/8 in. diameter and 11 threads per
inch, such as the Type E TOPCON wide- frame wooden tripod.
儀器之定心定平：
1.Setting up the Tripod
First, extend the extension legs to suitable
lengths and tighten the screws on their
midsections.
2.Attaching the Instrument on the Tripod
Head
Place the instrument carefully on the tripod head
and slide the instrument by loosening the tripod
screw. If the plumb bob is positioned right over
the center of the point, slightly tighten the tripod
screw.
3.Roughly Leveling the Instrument by Using
the Circular Level
c
Turn the leveling screws A and B to move
the bubble in the circular level. The bubble
is now located on a line perpendicular to a
line running through the centers of the two
leveling screws being adjusted.
d
Turn the leveling screw C to bring the
bubble to the center of the circular level.
4. Leveling by Using the Plate Level
c
Rotate the instrument horizontally by using
the Horizontal motion/clamp screw and
place the plate level parallel with the line
connecting leveling screws A and B, and
then bring the bubble to the center of the
plate level by turning leveling screws A and
B.
d
Rotate the instrument 90 (100g) around its
vertical axis and turn the remaining leveling
screw or C to center the bubble once more.
e
Repeat the procedures - and - for each 90
(100g) rotation of the instrument and check
whether the bubble is correctly centered for all
four points.
5.Centering by Using the Optical Plummet
Telescope
Adjust the eyepiece of the optical plummet
telescope to your eyesight.
Slide the instrument by loosening the tripod screw,
place the point on the center mark, and then
tighten the tripod screw. Sliding the instrument
carefully not to rotate that allows you to get the
least dislocation of the bubble.
6.Completely Leveling the Instrument
Leveling the instrument precisely in the similar way
to 4. Rotate the instrument and check to see that
the bubble is in the center of the plate level
regardless of telescope direction, then tighten the
tripod screw hard.
Leveling
screw B
Leveling screw C
90
°
Point
Center mark
Leveling screw C
Leveling screw A
Leveling
screw B
Leveling screw A
Summary of Contents for GTS-710 Series
Page 1: ...GTS 710 GTS 710 GTS 711 GTS 712 GTS 713...
Page 9: ...1 NOMENCLATURE AND FUNCTIONS 1 9 1 1 1 BT 30Q Lower horizontal clamp Point guide type only 4A...
Page 76: ...11 CORRECTION FOR REFRACTION AND EARTH CURVATURE 11 68 Temprerature C Temprerature F...
Page 77: ...11 CORRECTION FOR REFRACTION AND EARTH CURVATURE 11 69 Temprerature F...
