Hilti PR 20 Manuel utilisateur

PR 20

Operating instructions

Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00

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X+

X-

Y-Y+

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햺

햽

햾

햷

햵

햶

햴

햵햻

햿

헀

햲햳 햹 햸



Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00

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Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00

PR 20 rotating laser Contents

It is essential that the operating

instructions are read before the tool

is used the first time.

Always keep these operating

instructions together with the tool.

Ensure that the operating instruc-

tions are with the tool when it is

given to other persons.

Component parts



PR 20 rotating laser

햲Laser beam (plane of rotation)

햳Rotating head

햴Control panel

햵Grip

햶Battery compartment

햷Base plate with 5/8" thread

PR 20 control panel

햸On / off button

햹Shock warning deactivation key

햺Servo key (sets X/Y inclination /

direction)

햻Auto leveling LED

햽Shock warning deactivation LED

햾Battery LED

햿X-inclination / direction LED

헀Y-inclination / direction LED

Contents

Page

1. General information . . . . . . . . . . . . . .2

2. Description . . . . . . . . . . . . . . . . . . . . .2

3. Accessories . . . . . . . . . . . . . . . . . . . .3

4. Technical data . . . . . . . . . . . . . . . . . . .4

5. Safety precautions . . . . . . . . . . . . . . .5

6. Getting started . . . . . . . . . . . . . . . . . .7

7. Operation . . . . . . . . . . . . . . . . . . . . . .8

8. Hilti calibration service . . . . . . . . . . . .9

9. Care and maintenance . . . . . . . . . . .10

10. Disposal . . . . . . . . . . . . . . . . . . . . .10

11. Manufacturer's warranty – tools . . .11

12. FCC statement . . . . . . . . . . . . . . . .12

13. EC declaration of conformity . . . . .12

Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00

1. General information / 2. Description

1. General information

1.1 Safety notices and their meaning

- CAUTION -

This word indicates a possibly hazardous

situation which could result in slight bodily

injuries or damage to property.

- NOTE -

This word indicates information to help the

user employ the product efficiently, and

other useful notes.

1.2 Pictograms

Warning signs

Symbole



These numbers refer to the correspon-

ding illustrations. The illustrations can be

found on the fold-out cover pages. Keep

these pages open when studying the oper-

ating instructions. In these operating

instructions, the PR 20 rotating laser is

referred to as "the tool".

1.3 Location of identification data on the

tool

The type designation and serial number

can be found on the rating plate on the

tool. Make a note of this data in your oper-

ating instructions and always refer to it

when making an enquiry to your Hilti rep-

resentative or service department.

Type : PR 20

Serial-no.: ____________

2. Description

2.1 PR 20 rotating laser

The PR 20 is a rotating laser with one

rotating laser beam.

2.2 Features

_ The tool allows a single person to level

or align in any plane quickly and with

great accuracy (always in conjunction

with the PRA 20 laser detector).

_ The laser’s speed of rotation is 300

r.p.m. (revolutions per minute) once the

tool has leveled itself.

_ Automatic leveling (within ±5°

inclination).

_ LEDs for indication of operating status

_ Built-in shock warning: The tool switches

to warning mode (all LEDs blink, laser

stops rotating) when brought out of level

as a result of vibration or an impact dur-

ing operation.

_ Automatic cut-out: The laser remains

switched off and all LEDs blink if the tool

is outside its self-leveling range or if

movement of the mechanism is

physically impeded.

General warning

Laser class 2

(Do not stare into the

beam.)

Read the operating

instructions before

use.

Return waste material

for recycling

Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00

2. Description / 3. Tools and accessories

_ The tool can be set up on a tripod with a

5/8" thread or stood directly on some

other steady surface.

_ The tool is easy to operate, robustly built

and comparatively light in weight.

2.3 Description of functions

2.3.1 Horizontal plane

(automatic leveling)

When switched on, the tool levels itself

automatically by way of the 2 built-in servo

motors for the X- and Y-directions.

2.3.2 Inclined plane (manual adjustment

to any desired slope)

Inclination can be set up in alignment with

given marks or contours by pressing the X-

and Y-keys.

2.3.3 Automatic cut-out

During automatic leveling in one or both

directions, the servo system monitors

compliance with the specified accuracy.

The tool switches itself off in the following

situations:

– Leveling is not accomplished (tool set up

outside leveling range or mechanism

physically impeded)

– The tool is brought out of level (due to

vibration or impact)

After automatic cut-out, rotation of the

laser beam stops and all LEDs blink.

Items supplied

1 PR 20 rotating laser

1 PRA 20 laser detector

1 PRA 75 laser detector holder

1 PR 20 operating instructions

1 PRA 20 operating instructions

3 batteries (size D cells)

2 batteries (size AA cells)

1 PRA 52 slope calculator

1 manufacturer’s certificate

1 desiccant sachet

1 Hilti toolbox

3. Tools and accessories

Accessories

Various tripods PA 910, PA 911, PA

921 and PA 931/2

Laser detector PRA 20

Laser detector-

holder PRA 75

Leveling staffs PA 950/960 and

PA 951/961

Battery charger PUA 80

Battery pack PRA 801

Slope calculator PRA 52

Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00

4. Technical data for the PR 20

Range (diameter)

2 to 400m [6 to 1300’] with PRA

20 laser detector

Accuracy (at 24°C/+75°F)

± 0.5mm @ 10m [0.2” @ 32.8’]

Laser product class

Class 2, visible, 650nm, < 1mW

(IEC825-1/EN60825;

FDA 21 CFR 1040)

Speed of rotation [r.p.m.]

300 (operating speed)

Self-leveling range

± 5°, LED indicator

Automatic cut-out

When the laser is brought out of

level (after 1 minute), unless both

axes set to inclined mode:

- rotation stops

- all LEDs blink

Status indicators

- Auto leveling LED

- Battery condition LED

- Shock warning LED

- X inclination/direction LED

- Y inclination/direction LED

Power supply

3 x size D alkaline batteries

Battery life at 20°C [+68°]

Alkaline batteries: > 80 hours

NiMh batteries: > 60 hours

Operating temperature

-20 to +50°C

[-4° to +122°F]

Storage temperature

-30 to +60°C dry

[-22° to +140°F]

Protection class

IP 56 (as per IEC 529)

Tripod thread

5/8" x 18

Weight

Approx. 2.4 kg (5.3 lbs.)

including 3 batteries

Dimensions

186(L) x 186(W) x 213(H) mm

[7.3"(L) x 7.3"(W) x 10.9"(H) inches]

4. Technical data for the PR 20

Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00

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 deter-

mining, transferring or checking alignment

in the horizontal and inclined planes, e.g.:

– Transferring datum and height marks

– Setting out inclines

Hilti offers various accessories that allow

optimum use to be made of the tool.

5.3 Misuse

– 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 origi-

nal Hilti accessories and additional

equipment.

– Modification of the tool is not

permissible.

– Observe the information printed in the

operating instructions concerning opera-

tion, 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 centre. Failure to follow the

correct procedures when opening the

tool may cause emission of laser

radiation in excess of class 2.

– Take the surrounding conditions into

account. Do not use the tool where there

is a risk of fire or explosion.

5.4 Proper organization of the workplace

– Secure the area in which you are work-

ing. When setting up the tool, take care

to avoid directing the beam towards

yourself or other people.

– Avoid unfavorable body positions when

working on ladders. Make sure you have

a stable stance and stay in balance 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).

– Use the tool only within its specified lim-

its.

5.4.1 Electromagnetic compatibility

Although the tool complies with the strict

requirements of the relevant guidelines,

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, which can

then lead to incorrect operation.

Check the readings for plausibility when

measuring in these conditions or if you

are unsure of the results.

Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00

5.4.2 Laser classification

The tool conforms to laser class 2 based

on the IEC825-1 / EN60825-01 standard

and class II based 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 can, however, be negatively influ-

enced by medication, alcohol or drugs.

Nevertheless, as with the sun, a person

should not look directly into sources of

bright light. The laser beam should not be

directed towards persons.

Laser information plates based

on IEC825 / EN6082-1

Laser information plates for the US

based on CFR 21 § 1040 (FDA)

This laser product complies with 21 CFR

1040, as applicable.

5.5 General safety precautions

– Check the tool before use. If the tool is

found to be damaged, have it repaired at

a Hilti service center.

– The accuracy of the tool must be

checked after it has been dropped or

subjected to other mechanical stressing.

– When the tool is brought into a warm

environment from very cold conditions,

or vice versa, allow it to become acclima-

tized before use.

– If mounting on an adaptor, ensure that

the tool is screwed on securely.

– 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 instruments (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 impor-

tant leveling work.

5.5.1 Electrical

– Do not allow the batteries to fall into the

hands of children.

– Do not overheat or incinerate the batter-

ies. They may explode or release toxic

substances.

– Do not attempt to recharge the batteries.

– Do not solder the batteries into the tool.

– Do not discharge the batteries by short

circuiting. This may cause overheating

and swelling of the batteries.

– Do not attempt to open the batteries and

do not subject them to excessive

mechanical stress.

5. Safety precautions

Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00

6. Getting started

-NOTE-

The tool may be powered only by the PRA

801 battery pack or by batteries

manufactured according to the

IEC standard.

PR 801 battery pack

– The performance of the battery pack

drops at low temperatures.

– Store the battery pack at room

temperature.

– Never store the battery pack where

it is exposed to direct sunlight, on

a radiator or heater, or behind glass

(windows, motor vehicle wind-

screens, etc).

Batteries

– Do not use damaged batteries.

– Do not mix old and new batteries.

Do not mix batteries of different

types or batteries from various

manufacturers.

6.1 Switching on the tool

Press the ON / OFF key.

-NOTE-

After switching on, the tool begins to level

itself automatically.

6.2 LED indicators

Auto leveling LED

The LED blinks rapidly.

The tool is leveling itself

automatically.

The LED lights constantly.

The tool has leveled itself / is

operating normally.

Shock warning LED

All LED’s blink.

The tool has been bumped or

brought out of level temporarily.

The shock warning LED lights red.

The shock warning LED lights red

after deactivation of the shock

warning.

Battery voltage LED

The LED lights.

The batteries are almost exhausted.

Inclination LED

The X and Y LEDs do not light.

Operation in the horizontal plane.

The X LED does not light and

The Y LED lights red

Manual operation: Y-direction can

be aligned manually by way of the

servo keys.

X–direction is still under automatic

control.

The X LED lights red and

The Y LED does not light

Manual operation: X direction can

be aligned manually by way of the

servo keys.

Y axis is still under automatic

control.

The X LED lights red and

The Y LED lights red

Manual operation: X and Y direc-

tions can be aligned manually by

way of the servo keys.

The shock warning system is

deactivated.

6.3 Inserting new batteries



1.Open the battery compartment by

turning the locking button.

2.Insert the batteries in the battery

compartment. Take care to ensure

correct polarity.

3.Close the battery compartment by

turning the locking button.

Printed: 07.07.2013 | Doc-Nr: PUB / 5070169 / 000 / 00

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