User's Manual

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13.10 Non-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. The external influence such as the vibration, the larger
temperature change and other factors may make laser beam and
viewing not overlap.
Before precise ranging, you should check whether the
direction of the laser beam 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 meters and 20 meters away. Start laser direction
function. Focus on the reflector center by the telescope crosshair
center, and check the position of the red laser point. Generally
speaking, the telescope is equipped with special filter, human
eyes can′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 indicates that the adjustment meet required accuracy. If the
offset between the point position and the mark of crosshair is out
of limit, it will need to be sent to professional department for
adjustment.
If the reflector is too bright under the illumination of laser
beams, the grey side can be replaced by the white side.