Topcon GB-500, Руководство оператора

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Antenna Setup
P/N 31-050506-01 www.topconpositioning.com
2-11
Use the following reference to level the tripod.
1. Set Up the Tripod
Extend the extension legs to suitable
lengths and tighten the leg-screws.
2. Attach the Antenna to the Tripod
Place the antenna on the tripod head
and slide the antenna by loosening the
tripod screw. If the plumb bob is
positioned over the center of the point,
slightly tighten the tripod screw.
3. Roughly Level the Antenna
Using the Circular Level
Turn 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 center of leveling screws A and B
Turn leveling screw C to center the
bubble in the circular level.
4. Center Using the Plate Level
Rotate the instrument horizontally
using the Horizontal motion/clamp
screw and place the plate level parallel
with the line connecting leveling
screws A and B. Turn leveling screws A
and B to bring the bubble to the center
of the plate level.
Rotate the instrument 90° (100g)
around its vertical axis and turn
leveling screw C to center the bubble
once more.
Repeat step 4 for each 90° (100g)
rotation of the instrument and check
that the bubble correctly centers at all
four points.
5. Center 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. Slide the instrument carefully to
prevent any dislocation of the bubble.
6. Level the Instrument
Level the instrument as in step 4:
Rotate the instrument, checking that the
bubble is in the center of the plate level,
regardless of telescope direction, then
tighten the tripod screw to lock in
position.
Leveling
screw C
Leveling
screw A
Leveling
screw B
Leveling
screw A
Leveling
screw B
90
Leveling
screw C
Point
Centermark