Hilti PR 2-HS User manual

*2067468*
2067468
PR 2-HS
Operating instructions en
Mode d’emploi fr
Manual de instrucciones es
Manual de instruções pt
Printed: 29.11.2013 | Doc-Nr: PUB / 5142563 / 000 / 02

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Printed: 29.11.2013 | Doc-Nr: PUB / 5142563 / 000 / 02

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Printed: 29.11.2013 | Doc-Nr: PUB / 5142563 / 000 / 02

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Printed: 29.11.2013 | Doc-Nr: PUB / 5142563 / 000 / 02

ORIGINAL OPERATING INSTRUCTIONS
PR‑2‑HS rotating laser
It is essential that the operating instructions
are read before the tool is operated for the
first time.
Always keep these operating instructions to-
gether with the tool.
Ensure that the operating instructions are
with the tool when it is given to other persons.
Contents Page
1 General information 2
2Description 2
3 Accessories 4
4 Technical data 5
5 Safety instructions 6
6Beforeuse 8
7 Operation 10
8 Care and maintenance 11
9Disposal 12
10 Manufacturer’s warranty - tools 13
11 FCC statement (applicable in US) / IC
statement (applicable in Canada) 13
1These numbers refer to the corresponding illustra-
tions. The illustrations can be found on the fold-out cover
pages. Keep these pages open while studying the oper-
ating instructions.
In these operating instructions, the designation “the tool”
or “the rotating laser” always refers to the Hilti PR 2-HS
rotating laser. “Laser receiver” or “receiver” always refers
to the PRA 20 (02) laser receiver.
PR 2-HS rotating laser 1
@Laser beam (plane of rotation)
;Rotating head
=Grip
%Control panel
&Base plate with ⁵/₈" thread
(PRA 84 Li‑ion battery
Inserting and removing the battery 2
@PRA 84 Li‑ion battery
;Battery compartment
=Catch
Charging the battery in the tool 3
@PUA 81 AC adapter
;Charging socket
Charging the battery after removal from the tool 4
@PUA 81 AC adapter
;PUA 82 motor vehicle power adapter
=Charging activity LED
Rotating laser control panel 5
@On/off button
;Auto-leveling LED
=Shock warning function deactivation button and
LED
%Manual inclined plane mode button and LED
&Battery charge status LED
PRA 20 laser receiver control panel 6
@On/off button
;Units button
=Volume button
%Receiving window
&Marking notch
(Display
PRA 20 laser receiver display 7
@Indicator showing the position of the receiver rela-
tive to the height of the laser plane
;Battery status
=Indication of distance from laser plane
%Volume
&Low battery indicator for the rotating laser
en
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Printed: 29.11.2013 | Doc-Nr: PUB / 5142563 / 000 / 02

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1 General information
1.1 Safety notices and their meaning
DANGER
Draws attention to imminent danger that will lead to
seriousbodilyinjuryorfatality.
WARNING
Draws attention to a potentially dangerous situation 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.
NOTE
Draws attention to an instruction or other useful informa-
tion.
1.2 Explanation of the pictograms and other
information
Symbols
Read the
operating
instructions
before use.
General
warning
Return waste
material for
recycling.
Do not look
into the
beam.
For indoor
use only
Warning:
caustic
substances
Warning:
electricity
Warning:
explosive
substances
KCC‑REM-
HLT‑PR2HS
On the tool
Laser Class 2 in accordance with IEC/EN 60825‑1:2007
On the tool
Laser Class II according to CFR 21, § 1040 (FDA)
Location of identification data on the tool
The type designation and serial number can be found on
thetypeidentificationplateonthetool.Makeanoteof
this data in your operating instructions and always refer
to it when making an enquiry to your Hilti representative
or service department.
Type:
Generation: 01
Serial no.:
2 Description
2.1 Use of the product as directed
The PR 2-HS is a rotating laser that projects a rotating, visible laser beam. The rotating laser can be used horizontally
and for inclined planes.
The tool is designed to be used for determining, transferring and checking references in the horizontal and inclined
planes. Examples of uses are the transferring of datum lines and heights. The tool is designed for professional use and
may be operated, serviced and maintained only by trained, authorized personnel. This personnel must be informed of
any special hazards that may be encountered.
The tool and its ancillary equipment may present hazards when used incorrectly by untrained personnel or when used
not as directed.
Hilti supplies various accessories which allow the tool to be used with maximum efficiency.
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Printed: 29.11.2013 | Doc-Nr: PUB / 5142563 / 000 / 02

To avoid the risk of injury, use only genuine Hilti accessories and insert tools.
Observe the information printed in the operating instructions concerning operation, care and maintenance.
Take the influences of the surrounding area into account. Do not use the appliance where there is a risk of fire or
explosion.
Modification of the tool is not permissible.
2.2 Features
Thetoolmakesitpossibleforasinglepersontoleveloraligninanyplanequickly and with great accuracy.
The tool levels itself automatically after switching on. The laser beam is switched on only when the specified accuracy
has been achieved.
LEDs indicate the current operating status.
The tool is powered by a rechargeable Li‑ion battery which can be charged while the tool is in operation.
2.3 Digital distance measurement display
The laser receiver displays digitally the distance between the laser plane and the marking notch on the laser receiver.
This allows the user to determine the exact position of the receiver relative to the laser plane, with millimeter accuracy,
inasingleoperation.
2.4 Horizontal plane
After switching on, the tool levels itself automatically by way of two built-in servo motors.
2.5 Inclined plane (manual alignment in the desired plane of inclination)
The desired inclination can be set with the aid of the PRA 79 slope adapter. For further information on using the slope
adapter, please refer to the instruction sheet supplied with the PRA 79.
2.6 Shock warning
The shock warning function is activated two minutes after the tool has leveled itself after switching on. If a button
is pressed within these two minutes, the two-minute delay begins again. The tool switches to warning mode if it is
brought out of level while in operation (due to vibration or an impact); all LEDs begin to blink and the laser switches
off (the head stops rotating).
2.7 Automatic cut-out
The laser does not switch on and all LEDs blink if the tool is set up outside its self-leveling range (±5°) or if movement
is blocked mechanically. The tool can be set up on a tripod with a 5/8" thread or stood directly on some other steady
surface (free of vibration). When automatic leveling is activated for one or both axes, the built-in servo system ensures
that the specified accuracy is maintained. The tool switches itself off when automatic leveling cannot be achieved (tool
set up outside its leveling range or physical impediment of the mechanism) or when knocked off level (see “Shock
warning” section).
NOTE
If the correct level cannot be achieved, the laser switches itself off and all LEDs blink.
2.8 Items supplied
1 PR 2-HS rotating laser
1 PRA 20 (02) laser receiver
1 PRA 80 or PRA 83 laser receiver holder
1 Operating instructions
1 PRA 84 Li‑ion battery
1PUA81ACadapter
2 Batteries (size AA cells)
2 Manufacturer’s certificates
1 Hilti toolbox
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Printed: 29.11.2013 | Doc-Nr: PUB / 5142563 / 000 / 02

2.9 Operating status indicators
The tool is equipped with the following operating status indicators: auto-leveling LED, battery charge status LED,
shock warning deactivation LED and inclined plane mode LED.
2.10 LED indicators
Auto-leveling LED The green LED blinks. The tool is in the leveling phase.
The green LED lights con-
stantly.
The tool has leveled itself / is operating
normally.
Shock warning deactivation LED The orange LED lights con-
stantly.
The shock warning function is deacti-
vated.
Inclined plane mode LED The orange LED lights con-
stantly.
Manual inclined plane mode is active.
All LEDs All LEDs blink. The tool has been bumped, knocked off
level or is exhibiting some error.
2.11 Charge status of the Li‑ion battery during operation
LEDs light constantly LEDs blink Charge status C
LED1,2,3,4 -C≧75%
LED1,2,3 -50 % ≦ C < 75 %
LED 1, 2 -25 % ≦ C < 50 %
LED 1 -10 % ≦ C < 25 %
-LED 1 C<10%
2.12 Charge status of the Li‑ion battery during charging while inserted in the tool
LEDs light constantly LEDs blink Charge status C
LED1,2,3,4 -C = 100%
LED1,2,3 LED4 75 % ≦ C < 100 %
LED 1, 2 LED 3 50 % ≦ C < 75 %
LED 1 LED 2 25 % ≦ C < 50 %
-LED 1 C<25%
2.13 Battery charging activity is shown on the battery display while charging the battery outside the tool.
If the red charging activity LED lights constantly, the battery is being charged.
If the red charging activity LED does not light, then either the charging operation is complete or the charger is providing
no current.
3 Accessories
Designation Short designation
Laser receiver PRA 20 (02)
Laser receiver holder PRA 80
Laser receiver holder PRA 83
Height transfer device PRA 81
Slope adapter PRA 79
AC adapter PUA 81
Car charging connector PUA 82
Battery PRA 84
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Printed: 29.11.2013 | Doc-Nr: PUB / 5142563 / 000 / 02

Designation Short designation
Battery PRA 84G
Tripod PUA 20
Crank tripod (elevator tripod) PUA 30
Crank tripod (elevator tripod) PA 921
Automatic tripod PRA 90
Telescopic staffs PUA 50, PUA 55
4 Technical data
Right of technical changes reserved.
PR 2-HS
Receiving range (diameter) With PRA 20 (02) laser receiver: 2…600 m (6.56…
1,968.5 ft)
Accuracy 1At 10 meters: ± 0.5 mm
Laser class Class 2, 620-690 nm; < 1 mW (EN 60825-1:2007 / IEC
60825-1:2007); Class II (CFR 21 § 1040 (FDA)); Maxi-
mum power < 4.85 mW at ≧ 300 r.p.m.
Speed of rotation 300/min ± 10%
Self-leveling range ± 5°
Powersource 7.2V/4.5AhLi‑ionbattery
Battery life Temperature +25°C (+77 °F), Li‑ion battery: ≥ 30 h
Operating temperature range -20…+50°C (−4…+122 °F)
Storage temperature range (dry) -25…+60°C (−13…+140 °F)
Protection class IP 66 (in accordance with IEC 60529); Not in “charging
during operation” mode
Tripod thread ⁵⁄₈" x 18
Weight (including the PRA 84) 2.5 kg (5.51 lb)
Dimensions (L x W x H) 200 mm (7.87") x 200 mm (7.87") x 230 mm (9.06")
Drop test height 21.5m(4.92ft)
1Influences such as particularly high temperature fluctuations, dampness, shock, dropping, etc. can affect accuracy. Unless stated
otherwise, the tool was adjusted or calibrated under standard ambient conditions (MIL-STD-810G).
2The drop test was carried out from a tripod, dropping onto flat concrete under standard ambient conditions (MIL-STD-810G).
PRA 20 (02)
Detection range (area diameter) With the PR 2-HS (typical): 2…600 m (6.56…1,968.5 ft)
Signal tone generator 3 volume levels plus mute setting
Liquid-crystal display On both sides
Indicator range, distance from zero ± 52 mm
Laser plane display range ± 0.5 mm
Length of the receiving window 120 mm (4.72")
Center indication from top edge of casing 75 mm (2.95")
Marking notches On both sides
Time without detection before automatic power off 15 min
1The drop test was carried out using the PRA 83 receiver holder, dropped onto flat concrete under standard ambient conditions
(MIL-STD-810G).
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Dimensions (L × W × H) 160 mm (6.3") × 67 mm (2.64") × 24 mm (0.94")
Weight (including batteries) 0.25 kg (0.55 lb)
Power source 2 AA batteries
Battery life Temperature +20°C (+68 °F): Approx. 50 h (depending
on the quality of the alkaline batteries used)
Operating temperature range -20…+50°C (−4…+122 °F)
Storage temperature range -25…+60°C (−13…+140 °F)
Protection class IP 66 (in accordance with IEC 60529); Except the bat-
tery compartment
Drop test height 12m(6.56ft)
1The drop test was carried out using the PRA 83 receiver holder, dropped onto flat concrete under standard ambient conditions
(MIL-STD-810G).
PRA 84 Li‑ion battery
Rated voltage (normal mode) 7.2 V
Maximum voltage (during operation or during charging
while in operation)
13 V
Rated current 140 mA
Charging time Temperature +32°C (+90 °F): 2 h 10 min (battery 80%
charged)
Operating temperature range -20…+50°C (−4…+122 °F)
Storage temperature range (dry) -25…+60°C (−13…+140 °F)
Charging temperature range (also for charging during
operation)
+0…+40°C (+32…+104 °F)
Weight 0.3 kg (0.66 lb)
Dimensions (L x W x H) 160 mm (6.3") x 45 mm (1.77") x 36 mm (1.42")
PUA 81 AC adapter
AC supply 115…230 V
AC frequency 47…63 Hz
Rated power 36 W
Rated voltage 12 V
Operating temperature range +0…+40°C (+32…+104 °F)
Storage temperature range (dry) -25…+60°C (−13…+140 °F)
Weight 0.23 kg (0.51 lb)
Dimensions (L x W x H) 110 mm (4.33") x 50 mm (1.97") x 32 mm (1.26")
5 Safety instructions
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 General safety rules
a) Do not render safety devices ineffective and do
not remove information and warning notices.
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Printed: 29.11.2013 | Doc-Nr: PUB / 5142563 / 000 / 02