Leica FlexLine TS02 User Manual page 42

Operation
Prism
measurements
Warning
• Avoid interrupting the measuring beam while taking Non-Prism measurements or
measurements using reflective foils.
• Do not measure with two instruments to the same target simultaneously.
• Accurate measurements to prisms should be made in Prism-standard mode.
• 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 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 interferring in the beam path.
Due to laser safety regulations and measuring accuracy, using the Long Range
Reflectorless EDM is only allowed to prisms that are more than 1000 m (3300 ft)
away.
FlexLine, 42