Leica Geosystems Leica DISTO Classic3 - Manual (Page 44)

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Precautions:
Carry out periodic test measurements. Particularly
after the instrument has been subject to abnormal
use, and before, during and after important
measurements.
CAUTION:
Watch out for erroneous distance
measurements if the instrument is
defective or if it has been dropped or has
been misused or modified.
Hazards in Use
WARNING:
The absence of instruction, or the
inadequate imparting of instruction, can
lead to incorrect or prohibited use, and
can give rise to accidents with far-
reaching human, material, financial and
environmental consequences.
Precautions:
All users must follow the safety instructions given
by the manufacturer and the directions of the person
responsible for the instrument.
Important hazards in use
CAUTION:
Take care when aiming the DISTO
directly into the sun. The receiver lens
acts as a magnifying glass and can thus
cause damage to the instrument
internals.
Precautions:
Do not aim the DISTO directly at the sun.