Leica Geosystems T100 - Manual (Page 54)

54 Care and storage T105/T110-1.3.0en
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Laser plummet
The laser plummet is integrated into
the vertical axis of the instrument.
Under normal circumstances setting
of the laser plummet is not
necessary. If an adjustment is
necessary due to external influences
the instrument has to be returned to
any Leica Geosystems service
department.
Checking by turning the
instrument by 360°:
1. Install the instrument on the tripod
approx. 1.5 m above ground and
level up.
2. Switch on laser plummet and mark
the centre of the red spot.
3. Turn instrument slowly by 360°
and observe the red laser spot.
Inspecting the laser plummet should
be carried out on a bright, smooth
and horizonal surface (e.g. a sheet of
paper).
If the centre of the laser spot makes
a clearly circular movement or if the
centre of the point is moving away
more than 3 mm from the first
marked point an adjustment is
possibly necessary. Call your nearest
Leica Geosystems service
department. Depending on brightness and surface
the size of the laser spot can vary. At
a distance of 1.5 m an average value
of 2.5 mm diameter must be
estimated.
The max. diameter of the circular
movement of the centre of the laser
spot should not exceed 3 mm at a
distance of 1.5 m.
2
360°
£ 3 mm / 1.5 m
1
T100z20
Laser spot:
Ø 2.5 mm / 1.5 m