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6
PRECAUTIONS REGARDING SAFETY
Usage precautions
Surveying instruments are high-precision instruments. In order to assure that the
Electronic Total Station R-300X series product which you have purchased
will provide long-lasting maximum performance,the precautions in this manual must be
followed. Be sure to follow these instructions and use this product properly at all times.
[Solar observation]
WARNING
Never view the sun directly using the telescope as this may result in loss of sight.
Never point the objective lens directly at the sun as this may damage internal
components.When using the instrument for solar observation, be sure to attach the
special solar filter (MU64) designed for this product to the objective lens.
[Laser beam]
Do not stare into laser beam. R-300X is a class-II Laser product. (The reflectorless type is
a Class IIIa (3R) laser product.)
[EDM axis]
The R-300X series EDM is the red visible laser beam and the beam diameter is very small.
The beam is emitted from the objective center and the base plate center hole.The EDM
axis is designed to coincide with the telescope sight axis but both axes may not
sometimes coincide slightly according to the intense temperature change and time lapse.
[Target constant]
Confirm the Target Constant of the instrument before measurement.
If a different constant is to be used, use the correct constant of the target.The constant is
stored in the instrument's memory when turned off.
[Reflectorless and reflector sheet]
• Reflectorless:
The measurement range and accuracy of Reflectorless are based on the condition that
laser beam is emitted perpendicular to the white side of the Kodak Gray Card.
The measurement range may be influenced by the shape of the target and its
environment.There is a possibility that the range may vary when the target does not
satisfy the conditions above at survey work.
• Pay attention to following in case of distance measurement by Reflectorless.
In a situation resulting in low accuracy, perform the distance measurement by
Reflector sheet or Prism. (R-315NX,R-325NX, R-335NX, R-322NX, R-323NX)
• There is a possibility that correct distance measurement may be impossible by
dispersion or reduction of laser beam when the laser beam comes into the target from
diagonal angle.