Leica Geosystems TPS1100 Professional Series - User Manual - Manual (Page 47)

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TPS1100 - User Manual 2.2.1en Checking and adjusting
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Inspection
A target plate is provided. Set it up
between five and 20 metres 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 telescope crosshair 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 dot cannot be seen through the
telescope, so look at the target plate
from just above the telescope or from
just to the side of it.
If the dot 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.
Reflector-free 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 is
attempted, because an excessive
deviation of the laser beam from the
line of sight can result in imprecise
distance measurements.
1100Z29
If the dot on the more reflective side
of the plate is too bright (dazzling),
use the white side instead to carry
out the inspection.