User Manual

Total Station Manual
207
the launch axis.

Check whether the telescope crosshair center coincide with the emission
photoelectricity axis center, if they coincide on the whole we can say it qualified.
 Calibration
If the telescope crosshair center deviates from emission photoelectricity axis center
largely, send it to professional repair and calibration department.
3.10 No prism ranging
The red laser beam is coaxial with the telescope, used for no prism ranging, and
it is sent by telescope. If the instrument has been calibrated, red laser beams will
coincide with the line of sight. External influence such as the vibration, the larger
temperature change and other factors may make laser beam and viewing not overlap.
¾ Before precise ranging, you should check whether the direction of the laserbeam
is coaxial. Otherwise, it could lead to inaccuracy.
Warning:
Looking straightly at the laser is dangerous.
Prevention:
Don't look laser beams directly, or focus on others.
 Checkout
Put the gray side of the reflector towards the instrument, and put it 5 metersand
20 meters away. Start laser direction function. Focus on the reflector center by the
telescope crosshair center, and then check the position of the red laser point.
Generally speaking, the telescope is equipped with special filter, human eyes cann’t
see laser point through the telescope,you can see the offset between the red laser point
and the reflector crosshair center, you can observe this above the telescope or at the
side face of reflector . If laser center coincide with the crosshair center, it indicate that
the adjustment meet required accuracy. If the offset between the pointsposition and
the mark of crosshair is out of limitless, it need to send it to professional department
for adjustment.