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Rotate the Horizontal Tangent Screw and Vertical Tangent Screw, to do electric collimation and make the light
route of EDM unblocked. In the bight zone find the center of emitting photoelectric axis.
4. Check whether the center of reticle coincides with the center of emitting photoelectric axis. If so, the instrument
is up to grade.
Adjustment
If there is great difference between the center of reticle and the center of emitting photoelectric axis, the instrument
needs repairing.
24.11 Reflectorless EDM
The red laser beam used for measuring without reflector is arranged coaxially with the line of sight of the telescope,
and emerges from the objective port. If the instrument is well adjusted, the red measuring beam will coincide with
the visual line of sight. External influences such as shock or large temperature fluctuations can displace the red
measuring beam relative to the line of sight.
●The direction of the beam should be inspected before precise measurement of distances, because an excessive
deviation of the laser beam from the line of sight can result in imprecise distance measurements
Warning
Looking straight at the laser beam should be always considered as hazardous.
Precautions:
Do not stare at the beam or point it to the other people. Measuring result might also available even the laser pass
through body.
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 just to 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.
●If the spot on the more reflective side of the plate is too bright (dazzling), use the white side instead to carry out
the inspection.c
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
Summary of Contents for KTS440 L Series
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