Do not measure with two instruments to the same target simultaneously to
avoid getting mixed return signals.
Instruments equipped with an ATRplus sensor permit automatic angle and dis-
tance measurements to prisms. The prism is sighted with the optical sight.
After initiating a distance measurement, the instrument sights the prism
centre automatically. Vertical and horizontal angles and the distance are
measured to the centre of the prism. The lock mode enables the instrument
to follow a moving prism.
As with all other instrument errors, the collimation error of the automatic aim-
ing must be redetermined periodically. Refer to
about check-
ing and adjusting instruments.
When a measurement is triggered while the prism is still moving, distance and
angle measurements may not be made for the same position and coordinates
may vary.
If the prism location is changed too quickly, the target may be lost. Make sure
that the speed does not exceed the figure given in the technical data.
Unstable instrument setup conditions or small vibrations of the instrument
resulting from heavy traffic or construction activities in the vicinity of the
instrument may lead to an abandonment of the instrument’s positioning
before the final position is reached. Ensure that the instrument setup is stable,
especially if steep sightings are necessary. If an incomplete positioning is
indicated check the position deviation and repeat the according positioning
command.
☞
ATRplus/Lock
☞
☞
☞
Motorised positioning
54
Operation
Summary of Contents for Leica Nova MS60
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