•
When a distance measurement is triggered, the EDM measures to the object which is in the
beam path at that moment. If a temporary obstruction, for example a passing vehicle,
heavy rain, fog or snow is between the instrument and the point to be measured, the EDM
may measure to the obstruction.
•
Be sure that the laser beam is not reflected by anything close to the line of sight, for exam-
ple highly reflective objects.
•
Avoid interrupting the measuring beam while taking reflectorless measurements or meas-
urements using reflective foils.
•
Do not measure with two instruments to the same target simultaneously.
•
Accurate measurements to prisms should be made in P-Standard mode.
•
The prism mode also supports measurements to targets which are not a prism. However,
accuracy is not guaranteed.
•
Measurements to strongly reflecting targets such as traffic lights in Prism mode without a
prism should be avoided. The measured distances may be wrong or inaccurate.
•
When a distance measurement is triggered, the EDM measures to the object which is in the
beam path at that moment. If for example people, cars, animals, or swaying branches
cross the laser beam while a measurement is being taken, a fraction of the laser beam is
reflected from these objects and may lead to incorrect distance values.
•
Measurements to prisms are only critical if an object crosses the measuring beam at a dis-
tance of 0 to 30 m and the distance to be measured is more than 300 m.
•
In practice, because the measuring time is very short, the user can always find a way of
avoiding unwanted objects from interfering in the beam path.
•
The visible red laser beam can also be used to measure to reflective foils. To guarantee the
accuracy the red laser beam must be perpendicular to the reflector foil and it must be well
adjusted.
•
Make sure the additive constant belongs to the selected target (reflector).
NP measurements
P measurements
Red laser to reflector foil
30 Operation
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