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When a distance measurement is triggered, the EDM measures to the
object which is in the beam path at that moment. If a temporary obstruc-
tion, 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 example highly reflective objects.
•
Avoid interrupting the measuring beam while taking Non-Prism measure-
ments or measurements using reflective foils.
•
Do not measure with two instruments to the same target simultaneously.
•
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 measure-
ment 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 measur-
ing beam at a distance 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 tape and it must be well adjusted.
•
Make sure the additive constant belongs to the selected target (reflector).
Non-prism
measurements
Prism measurements
Red laser to reflector
tape
Operation
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