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Inspection:
A target plate is provided. Set it up between five and 20 meters away with the grey reflective side
facing the instrument. Move the telescope to face II. Switch on the red laser beam by activating the
laser-point function. Use the reticle to align the instrument with the centre of the target plate, and
then inspect the position of the red laser dot on the target plate. Generally speaking the red spot
cannot be seen through the telescope, so look at the target plate from just above the telescope or
from the side of the target plate.
If the spot illuminates the cross, the achievable adjustment precision has been reached; if it lies
outside the limits of the cross, the direction of the beam needs to be adjusted. Please send the total
station to service center.
●If the spot on the grey side of the plate is too bright (dazzling), use the white side instead to carry
out the inspection.
24.12 Tribrach Leveling Screw
If the leveling screw becomes flexible, adjust the two adjusting screws in the leveling screw to
tighten the screw appropriately.
24.13 Related Parts for Reflector
1. The Tribrach and Adapter for Reflector
The plate level and optical plummet in the adapter and tribrach should be checked, refer to Chapter
24.1 and 24.7.
2. Perpendicularity of the prism pole
As illustrated, mark „+‟ on Point C, place the tine of the prism pole on the Point C and do not move
it during the inspection. Place the two feet tine of Bipod on Point E and F on the cross lines. Adjust
the two legs to make the bubble on the prism pole centered.
Set and level the instrument on Point A near the cross. Sight tine of Point C with the center of reticle,
and fix the Horizontal Clamp Screw. Rotate the telescope upward to make D near the horizontal
hair. Flex the prism pole Leg e to make the D in the center of reticle. Then both Point C and D are
on the central line of reticle.
Set the instrument on Point B on another cross lines. With the same way flexing the Leg f to make
Point C and D are on the central line of reticle.
Through the inspection by the instrument on Point A and B, Prism pole has been perpendicular. If
then the bubble offset from the center, adjust the three screws under circular vial to make the bubble
centered, refer to Chapter 24.2.
Check and adjust again until the bubble is in the center of the vial from both directions.
