Electromagnetic Compatibility; General Safety Rules - Hilti POS 150 Guía Rápida

h) Keep laser tools out of reach of children.
i) Measurements to plastic foam surfaces, e.g. poly-
styrene foam, to snow or to highly reflective surfaces,
may result in incorrect readings.
j) Measurements taken to surfaces with low reflectivity
in highly reflective surroundings may be inaccurate.
k) Measurements taken through panes of glass or other
objects may be inaccurate.
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l) The measurement may be incorrect if the conditions
under which the measurement is taken change rap-
idly, e.g. due to people walking through the path of
the laser beam.
m) Do not point the tool or accessories toward the sun
or other powerful light sources.
n) Do not use the tool as a level.
o) Check the tool before taking important measure-
ments or after it has been dropped or subjected to
mechanical effects such as impact or vibration.
p) Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or
moving parts. Damaged or entangled cords increase
the risk of electric shock.
q) Check the condition of the extension cord and
replace it if damage is found. Do not touch the AC
adapter if the extension cord or AC adapter are
damaged while working. Disconnect the supply
cord plug from the power outlet. Damaged supply
cords or extension cords present a risk of electric
shock.
r) When switching distance measurement from prism
measurement to reflectorless measurement, make
sure that you do not look at the objective lens of the
tool.
4.3 Proper organization of the work area
a) Secure the site in which you are taking measure-
ments and take care to avoid directing the beam
towards other persons or towards yourself when
setting up the appliance. Always wear laser safety
glasses.
b) Use the tool only within the defined application limits,
i.e. do not take readings from mirrors, stainless steel
or polished stone, etc.
c) Observe the accident prevention regulations applic-
able in your country.

4.4 Electromagnetic compatibility

Although the tool complies with the strict requirements
of the applicable directives, Hilti cannot entirely rule out
the possibility of the tool
- causing interference to other devices (e.g. aircraft nav-
igation equipment) or being subject to
- interference caused by powerful electromagnetic radi-
ation, leading to incorrect operation.
Check the accuracy of the tool by taking measurements
by other means when working under such conditions or
if you are unsure.
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4.4.1 Laser classification for tools of the Class 3R /
Class IIIa
The tool conforms to laser class 3R based on the
IEC60825-1 / EN60825-1:2007 standard and complies
with CFR 21 § 1040 (Laser Notice 50). This tool may
be used without need for further protective measures.
Do not stare into the beam and do not direct the beam
toward other persons.
a) Tools of the laser class 3R and class IIIa should be
operated by trained personnel only.
b) The area in which the tool is in use must be marked
with laser warning signs.
c) The plane of the laser beam should be well above
or well below eye height. Always wear laser safety
glasses.
d) Precautions must be taken to ensure that the laser
beam does not unintentionally strike highly reflective
surfaces.
e) Precautions must be taken to ensure that persons do
not stare directly into the beam.
f) The laser beam must not be allowed to project bey-
ond the controlled area.
g) When not in use, laser tools should be stored in an
area to which unauthorized persons have no access.
h) Switch the laser tool off when it is not in use.

4.5 General safety rules

a) Before taking measurements, the user must make
sure that the instruments and equipment used
meet the requirements of the task.
b) Do not operate the tool in explosive atmospheres,
such as in the presence of flammable liquids,
gases or dust. tools and appliances create sparks
which may ignite the dust or fumes.
c) Check the tool for damage before use. If the tool
is found to be damaged, have it repaired at a Hilti
service center.
d) Stay alert, watch what you are doing and use com-
mon sense when operating the machine. Don't
use the machine when you are tired or under the
influence of drugs, alcohol or medication. A mo-
ment of inattention while operating machines may
result in serious personal injury.
e) Operating and storage temperatures must be ob-
served.
f) When the tool is brought into a warm environment
from very cold conditions, or vice-versa, allow it
to become acclimatized before use.
g) Check the accuracy of the tool after it has
been dropped or subjected to other mechanical
stresses.
h) When a tripod or wall mount is used, check that
the tool is correctly and permanently mounted
and that the tripod is standing securely on solid
ground.
i) Keep the laser exit aperture clean to avoid meas-
urement errors.