CHC
CTS-112R4 user manual
103
15.10.
Parallel between line of sight and emitting photoelectric axis
Inspection
1)
Set the reflector 50m from the instrument.
2)
Sight the center of the reflector prism with reticle.
3)
Power on and enter distance measurement mode. Press[MEAS]to measure.
4)
Rotate the horizontal 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.
5)
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 need repairing.
15.11.
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. If the instrument is well adjusted, the red measuring
beam will be coaxial 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.
CAUTION
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:
1)
A target plate is provided. Set it up between five and 20 meters away with the grey reflective side
facing the instrument.
2)
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 center of the target plate, and then inspect the
position of the red laser dot on the target plate. 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.
3)
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.
4)
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.
