Hilti PR 2-HS A12 Operating Manual
PR 2-HS A12
English
Printed: 31.07.2017 | Doc-Nr: PUB / 5260662 / 000 / 01
Printed: 31.07.2017 | Doc-Nr: PUB / 5260662 / 000 / 01
English 1
1 Information about the documentation
1.1 Explanation of signs used
1.1.1 Warnings
Warnings alert persons to hazards that occur when handling or using the product. The following signal words
are used in combination with a symbol:
DANGER! Draws attention to imminent danger that will lead to serious personal injury or fatality.
WARNING! Draws attention to a potential hazard that could lead to serious personal injury or
fatality.
CAUTION! Draws attention to a potentially dangerous situation that could lead to slight personal
injury or damage to the equipment or other property.
1.1.2 Symbols
The following symbols are used:
Read the operating instructions before use.
Instructions for use and other useful information
1.1.3 Illustrations
The illustrations in these operating instructions are intended to convey a basic understanding and may differ
from the actual version of the product:
These numbers refer to the corresponding illustrations found at the beginning of these operating
instructions.
The numbering in the illustrations reflects the order of the work steps in the illustration and may
deviate from the numbering of work steps in the text.
Item reference numbers are used in the overview illustration. In the product overview section, the
numbers shown in the legend relate to these item reference numbers.
1.2 On the product
Laser information
Laser Class 2 based on the IEC60825-1 / EN60825-1:2007 standard in compliance with CFR 21 § 1040 (Laser Notice 50).
Do not stare into beam.
1.3 About this documentation
▶ Read these operating instructions before the product is used or operated for the first time. This is a
prerequisite for safe, trouble-free handling and use of the product.
▶ Observe the safety instructions and warnings printed in this documentation and on the tool.
▶ Always keep the operating instructions with the tool and make sure that the operating instructions are
with the tool when it is given to other persons.
We reserve the right to make changes. Errors excepted.
1.4 Product information
Hilti products are designed for professional use and may be operated, serviced and maintained only by
trained, authorized personnel. This personnel must be informed of any particular hazards that may be
encountered. The product and its ancillary equipment may present hazards when used incorrectly by
untrained personnel or when used not as directed.
The type designation and serial number are printed on the type identification plate.
Printed: 31.07.2017 | Doc-Nr: PUB / 5260662 / 000 / 01
2 English
▶ Write down the serial number in the table below. You will be required to state the product details when
contacting Hilti Service or your local Hilti organization to enquire about the product.
Product information
Rotating laser PR 2-HS A12
Generation 02
Serial no.
2 Safety
2.1 Safety instructions
2.1.1 Basic information concerning safety
Read all safety instructions and other instructions. Failure to observe the safety instructions and other
instructions may result in electric shock, fire and/or serious injury.
Retain all safety precautions and instructions for future reference. The term “electric tool” used in the
safety instructions refers to your mains-operated (corded) electric tool or battery-operated (cordless) electric
tool.
2.1.2 General safety instructions
▶ Stay alert, watch what you are doing and use common sense when operating an electric tool. Do
not use an electric tool while you are tired or under the influence of drugs, alcohol or medication.
A moment of inattention while operating the electric tool may result in serious personal injury.
▶ Do not render safety devices ineffective and do not remove information and warning notices.
▶ Keep laser tools out of reach of children.
▶ Laser radiation in excess of Class 2 may be emitted if the tool is opened without following the correct
procedures. Have the tool repaired only by Hilti Service.
▶ Laser beams should be projected well above or well below eye height.
▶ Take the influences of the surrounding area into account. Do not use the tool where there is a risk
of fire or explosion.
▶ Statement in accordance with FCC §15.21: Changes or modifications not expressly approved by Hilti
may restrict the user’s authorization to operate the equipment.
▶ You must check the accuracy of the tool after it has been dropped or subjected to other mechanical
stresses.
▶ When the tool is brought into a warm environment from very cold conditions, or vice-versa, allow
it to become acclimatized before use.
▶ Make sure that the tool is mounted securely when adapters or accessories are used.
▶ Keep the laser exit aperture clean to avoid measurement errors.
▶ Although the tool is designed for the tough conditions of jobsite use, as with other optical and
electronic instruments (e.g. binoculars, spectacles, cameras) it should be treated with care.
▶ Although the tool is protected to prevent entry of dampness, it should be wiped dry each time
before being put away in its transport container.
▶ Check the tool before using it for important measuring work.
▶ Check the accuracy of the measurements several times during use of the tool.
▶ Ensure that the workplace is well lit.
▶ Do not expose the laser to rain or wet conditions.
▶ Avoid touching the contacts.
▶ Maintain the tool carefully. Check for misalignment or binding of moving parts, breakage of parts
and any other condition that may affect the tool’s operation. Have damaged parts repaired before
using the tool. Many accidents are caused by poorly maintained tools.
2.1.3 Proper preparation of the working area
▶ Secure the area in which you will be taking measurements. Make sure that the laser beam is not
directed toward other persons or toward yourself while setting up the PR 2-HS A12.
▶ Avoid unfavorable body positions when working from ladders. Make sure you work from a safe
stance and stay in balance at all times.
▶ Readings taken in the vicinity of reflective objects or surfaces, through panes of glass or similar materials
may produce incorrect results.
Printed: 31.07.2017 | Doc-Nr: PUB / 5260662 / 000 / 01
English 3
▶ Ensure that the tool is set up on a stable, level surface (not subject to vibration).
▶ Use the tool only within its specified limits.
▶ Use the tool and its accessories etc. in accordance with these instructions and in the manner
intended for the particular type of tool. Take the working conditions and the task to be performed
into account. Use of tools for applications different from those intended could result in a hazardous
situation.
▶ Use of the telescopic staff in the vicinity of overhead high voltage cables is not permissible.
2.1.4 Electromagnetic compatibility
Although the tool complies with the strict requirements of the applicable directives, Hilti cannot exclude the
following possibilities:
• The tool may be negatively affected by powerful electromagnetic radiation, possibly leading to incorrect
operation.
In these cases, or if you are otherwise unsure, confirmatory measurements should be made by other
means.
• The tool may cause interference to other devices (e.g. aircraft navigation equipment).
Only for Korea:
This device is suitable for the electromagnetic radiation encountered in residential environments (Class B). It
is intended mainly for use in residential environments but may also be used in other environments.
2.1.5 Laser classification for Class 2 laser products
The tool complies with laser Class 2 as per IEC60825-1:2007 / EN60825-1:2007. This tool may be used
without need for further protective measures.
CAUTION
Risk of injury! Do not direct the laser beam toward persons.
▶ Never look directly into the source of the laser beam. In the event of direct eye contact, close your
eyes and move your head out of the path of the laser beam.
2.1.6 Careful use of battery-powered tools
▶ Do not expose batteries to high temperatures, the direct heat of the sun, and keep them away
from fire. There is a risk of explosion.
▶ Do not disassemble, squash or incinerate batteries and do not subject them to temperatures over
80°C (176°F). This presents a risk of fire, explosion or injury through contact with caustic substances.
▶ Do not subject the battery to hard mechanical impacts and do not throw the battery.
▶ Batteries must be kept out of reach of children.
▶ Avoid ingress of moisture. Ingress of moisture may cause a short circuit, resulting in burning injuries or
fire.
▶ Under abusive conditions, liquid may leak from the battery. Avoid contact with the liquid. If contact
accidentally occurs, flush with water. If the liquid contacts the eyes, also seek medical attention.
Liquid leaking from the battery may cause irritation or burns.
▶ Use only batteries of the type approved for use with the applicable tool. Use of other batteries or
use of the batteries for purposes for which they are not intended presents a risk of fire and explosion.
▶ Store the battery in a cool and dry place. Never store the battery where it is exposed to direct sunlight or
sources of heat, e.g. on heaters / radiators or behind glass.
▶ When not in use, keep the battery and the charger away from paper clips, coins, keys, nails,
screws or other small metal objects that could cause a short circuit at the battery terminals or the
charging contacts. Short-circuiting the contacts on a battery or charger may cause burning injuries or
start a fire.
▶ Do not charge or continue to use damaged batteries (e.g. batteries with cracks, broken parts, bent
or pushed-in and/or pulled-out contacts).
▶ Recharge only with the charger specified by the manufacturer. A charger that is suitable for a certain
type of battery may present a risk of fire when used with other types of battery.
▶ Observe the special guidelines applicable to the transport, storage and use of Li-ion batteries.
▶ The battery must be insulated or removed from the tool before the tool is shipped or sent by mail.
Leaking batteries may damage the tool.
Printed: 31.07.2017 | Doc-Nr: PUB / 5260662 / 000 / 01
4 English
▶ If the battery gets noticeably hot when not in use, this may indicate that the battery or the tool / battery
system is faulty. In this case, place the tool in a non-flammable location, well away from flammable
materials, where it can be kept under observation and allowed to cool down.
3 Description
3.1 Overview of the product
3.1.1 PR 2-HS A12 rotating laser
@
Laser beam (plane of rotation)
;
Rotary head
=
Grip
%
Battery release button
&
Liion battery
(
Battery charge status display
)
Control panel
+
Base plate with 5/8" thread
Printed: 31.07.2017 | Doc-Nr: PUB / 5260662 / 000 / 01
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