●
Use the tool only within its specified limits.
●
Check that your PR 25 is being controlled by your
PRA 25 and that it is not reacting to commands from
any other PRA 25 in use on the construction site.
5.3.1 Electromagnetic compatibility
Although the tool complies with the strict requirements
of the relevant directives, Hilti cannot entirely rule out
the following possibilities:
●
The tool may cause interference to other equipment,
e.g. aircraft navigational equipment.
●
The tool may be subject to interference caused by
powerful radiation, possibly leading to incorrect oper-
ation. Check the readings for plausibility when mea-
suring under these conditions or if you are unsure of
the results.
5.3.2 Laser classification for laser class 2 products
Depending on the version purchased, the tool conforms
to laser class 2 based on the IEC825-1/EN60825-1:2003
standard and on CFR 21 § 1040 (FDA). These tools may
be used without need for further protective measures.
The eyelid closure reflex protects the eyes if a person
looks into the beam unintentionally for a brief moment.
The eyelid closure reflex may, however, be negatively
influenced by medication, alcohol or drugs. Neverthe-
less, as with the sun, a person should not look directly
into sources of bright light. Do not direct the laser beam
toward persons.
Laser warning plates based on IEC825/EN60825-1:2003
Laser warning plates for the US based on CFR 21 §
1040 (FDA)
5.3.3 Laser classification for laser class 3A products
Depending on the version purchased, the tool conforms
to laser class 3 based on the CFR 21 § 1040 (FDA) stan-
dard.
Do not look into the laser beam and do not direct the
laser beam toward persons.
Laser warning plate based on IEC825/EN60825-1:2003
16
en
3R
1/4
s
2
CLASS II LASER PRODUCT
620-690nm/0.95mW max.
LASER RADIATION - DO NOT
STARE INTO BEAM
5. Safety precautions
5.1 Basic information concerning safety
In addition to the information relevant to safety given in
each of the sections of these operating instructions, the
following points must be strictly observed at all times.
5.2 Intended use
The tool is designed to be used for determining, trans-
ferring or checking alignment in the horizontal plane,
inclined planes and right angles, e.g.
– Transferring datum and height marks
– Marking out right angles for walls
– Vertical alignment with a reference point
– Setting out inclines
Hilti offers various accessories that allow the tool to be
used with maximum efficiency.
●
The tool and its accessories may present hazards when
used incorrectly by untrained personnel or when used
not as directed.
●
To avoid the risk of injury, use only genuine Hilti acces-
sories and additional equipment.
●
Tampering with or modification of the tool is not per-
missible.
●
Observe the information printed in the operating instruc-
tions concerning operation, care and maintenance.
●
Do not render safety devices ineffective and do not
remove information and warning notices.
●
Keep laser tools out of reach of children.
●
Have the tool repaired only at a Hilti service center.
Failure to follow the correct procedures when open-
ing the tool may cause emission of laser radiation in
excess of class 2 or, respectively, class 3A.
●
Take the surrounding conditions into account. Do not
use the tool where there is a risk of fire or explosion.
* (Requested by FCC §15.21): Changes or modifications
not expressly approved by the party responsible for
compliance could void the user’s authority to operate
the equipment.
5.3 Proper organization of the workplace
●
Secure the area in which you are working. When set-
ting up the tool, take care to avoid directing the beam
toward yourself or other people.
●
Avoid unfavorable body positions when working on
ladders. Work from a stable stance and stay in bal-
ance at all times.
●
Measurements taken through panes of glass or other
objects may be inaccurate.
●
Ensure that the tool is set up on a steady surface (not
subject to vibration).
Printed: 07.07.2013 | Doc-Nr: PUB / 5070173 / 000 / 00
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