105
method above, and the original instrument constant is ‗-20‘, so the
new value should be set as ‗-20-(5) =-15‘; Input ‗-15‘ through
"menu-> 6->2" and then confirm.
Use the vertical line of the reticle to orientate, make A, B and C
at the same line accurately. There must be a clear mark for point B on
the ground to focus.
Whether the prism center of the point B coincide with the
instrument center is the guarantee of checking the accuracy, so, you
have better use tripod and all-purpose tribrach, for example, if you
change the three-jaw type prism connector with tribrach, keep the
tripod and tribrach stable, just change the prism and the part above
the tribrach of instrument, and it can reduce the error of misalignment
11.9 The parallelism of collimation axis and
photoelectricity axis
Checkout
1. Place a reflector prism 50 meters away from the instrument;
2. Focus on the reflecting prism center with telescope crosshair
accurately;
3.Observe
the
maximum
signal
value
through
starkey(
★
)→Para.→Signal, find the center of the launch axis;
4.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.
11.10 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
