Hilti Pra 90 User manual

PRA 90
English 1
Français 10
Español 19

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PRA 90
en Originaloperatinginstructions....................................... 1
fr Moded'emploioriginal ........................................... 10
es Manualdeinstruccionesoriginal .................................... 19

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Original operating instructions
1 Information about the documentation
1.1 About this documentation
• Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free
handling and use of the product.
• Observe the safety instructions and warnings in this documentation and on the product.
• Always keep the operating instructions with the product and make sure that the operating instructions
are with the product when it is given to other persons.
1.2 Explanation of symbols used
1.2.1 Warnings
Warnings alert persons to hazards that occur when handling or using the product. The following signal words
are used:
DANGER
DANGER !
▶Draws attention to imminent danger that will lead to serious personal injury or fatality.
WARNING
WARNING !
▶Draws attention to a potential threat of danger that can lead to serious injury or fatality.
CAUTION
CAUTION !
▶Draws attention to a potentially dangerous situation that could lead to personal injury or damage to the
equipment or other property.
1.2.2 Symbols in the documentation
The following symbols are used in this document:
Read the operating instructions before use.
Instructions for use and other useful information
Dealing with recyclable materials
Do not dispose of electric equipment and batteries as household waste
1.2.3 Symbols in the illustrations
The following symbols are used in illustrations:
These numbers refer to the corresponding illustrations found at the beginning of these operating
instructions
The numbering reflects the sequence of operations shown in the illustrations and may deviate
from the steps described in the text
Item reference numbers are used in the overview illustrations and refer to the numbers used in
the product overview section
This symbol is intended to draw special attention to certain points when handling the product.

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1.3 Product-dependent symbols
1.3.1 Symbols on the product
The following symbols are used on the product:
Only use in enclosed spaces
1.4 Product information
products are designed for professional users and only trained, authorized personnel are
permitted to operate, service and maintain the products. This personnel must be specifically informed about
the possible hazards. The product and its ancillary equipment can present hazards if used incorrectly by
untrained personnel or if used not in accordance with the intended use.
The type designation and serial number are printed on the rating plate.
▶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 inquire about the product.
Product information
Automatic tripod PRA 90
Generation 01
Serial no.
2 Safety
2.1 Safety precautions
In addition to the information relevant to safety provided in the individual sections of these operating
instructions and the information provided in the operating instructions of whichever type of rotating
laser is being used, the following instructions must also be strictly observed at all times.
General safety instructions
Do not render safety devices ineffective and do not remove information and warning notices.
Proper preparation of the working area
▶Secure the site in which you are taking measurements and take care to avoid directing the beam
towards other persons or towards yourself when setting up the appliance.
▶When performing alignment work on ladders, avoid postures to which you are unaccustomed.
Make sure you work from a safe stance and stay in balance at all times.
▶Ensure that the tool is set up on a stable, level surface (not subject to vibration).
▶Use the tool only within its specified limits.
▶Take care to ensure that no parts of the body are located under the tripod when the tripod is set
up or in operation.
▶Do not use the tripod as a hoist or lifting aid.
▶Keep children away. Keep other persons away from the working area.
▶When setting up the tripod in enclosed spaces (indoor rooms), check the suitability of the floor on
which it stands, as the tripod could gouge scratches into the floor.
Electromagnetic compatibility
▶Although the device complies with the strict requirements of the applicable directives, Hilti cannot
entirely rule out the possibility of interference to the device caused by powerful electromagnetic radiation,
possibly 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. Likewise, Hilti cannot rule out the
possibility of interference with other devices (e.g. aircraft navigation equipment).
General safety measures
▶Check the condition of the device before use. If the device is found to be damaged, have it repaired at a
Hilti Service Center.
▶Always keep the PRA 90 threaded rod free from objects of any kind, including parts of the body or
dirt.
▶Do not put your fingers or other parts of the body into the tubes of the tripod legs or other points
at which injuries may be caused.

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▶Although the appliance is designed for use on job sites under tough conditions, it should be
handled with care, in the same way as other electrical appliances.
▶Although the device is protected to prevent entry of dampness, it should be wiped dry each time
before being put away in its transport container.
▶Only use the AC adapter for connecting to the power supply.
▶Ensure that the appliance and AC adapter do not present an obstacle that could lead to a risk of
tripping or personal injury.
▶Ensure that the workplace is well lit.
▶Check extension cords at regular intervals and replace them if found to be damaged. 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.
▶Avoid body contact with earthed or grounded surfaces such as pipes, radiators, cookers, stoves
and refrigerators. There is an increased risk of electric shock if your body is grounded.
▶Do not expose the supply cord to heat, oil or sharp edges.
▶Never operate the AC adapter when it is dirty or wet. Dust (especially dust from conductive
materials) or dampness adhering to the surface of the AC adapter may, under unfavorable
conditions, lead to electric shock. Dirty or dusty tools or appliances should thus be checked by
Hilti Service at regular intervals, especially if used frequently for working on conductive materials.
▶Avoid touching the contacts.
▶Use the carry strap supplied with the tripod to make it easier to carry the PRA 90. When transporting
the PRA 90, take care not to allow the tripod to cause injury either to yourself or to other persons.
Particular care should be taken in checking the position of the points at the ends of the legs during
transportation.
▶When you are finished using the PRA 90, always make sure that the threaded column is fully wound
down before the tripod legs are folded together.
Use and care of battery-powered tools
▶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.
▶Do not expose batteries to high temperatures 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 allow moisture to enter the battery. Moisture in the interior of the device may cause a short
circuit and chemical reactions resulting in burns to the skin or fire.
▶Observe the special guidelines applicable to the transport, storage and use of Li-ion batteries.
▶Avoid short circuiting the battery terminals. Check that the battery terminals and the terminals in
the power tool are free from foreign objects before inserting the battery in the tool. Short circuiting
the battery terminals presents a risk of fire, explosion and chemical burns.
▶Never continue to use or attempt to charge damaged batteries, e.g. batteries with cracks, broken
parts, bent or pushed-in / pulled-out contacts).
▶Only use the AC adapter PRA 85 or the motor vehicle power adapter PRA 86.for operating the
appliance and charging the battery. The appliance may otherwise be damaged.

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3 Description
3.1 Product overview 1
@Rotating laser
;Laser adapter 5/8"
=Tripod head
%Battery compartment
&Extendable supports
(Control panel
)Charge state indicator
+height regulation
§LED display
/On/off button
3.2 Intended use
The product described is an automatic tripod onto which a rotating laser can be fitted. The tripod can be
moved in height using the control panel or a remote control unit. Using the tripod and the rotating laser
fitted to it, a horizontal laser plane can be established which is directed onto a particular target height, meter
marks can be transmitted and horizontal heights aligned and checked.
▶Use only the Hilti PRA 84 Li-ion battery for this product.
▶For these batteries, use only the Hilti PRA 85 AC adapter.
The tripod can be operated in two different ways: by means of the control panel directly on the tripod, or with
aHilti laser receiver/remote control unit (in combination with a Hilti rotating laser for automatic alignment
and monitoring).
Compatible laser receivers/remote control units:
• PRA 30
• PRA 30G
• PRA 300
3.3 Automatic alignment
The tripod can be automatically aligned with the HiltiPR 30HVS A12, PR 30HVSG A12 or the PR 300HV2S
rotating laser. These rotating lasers are specifically matched to the PRA 90 and support three-device
communication between tripod, rotating laser and associated laser receiver/remote control unit.
Using these three components together, a laser plane can be aligned onto a precise point automatically.
Only the target height has to be indicated with the laser receiver/remote control unit and the PRA 90 moves
the laser plane of the rotating laser exactly to this height.
Automatic alignment is not possible when other rotating lasers are used.
3.4 Charge state indicator
During charging in the device, during operation
Status Meaning
4 LEDs light. Charge state 100%
3 LEDs light, 1 LED blinks. Charge state ≥ 75%
2 LEDs light, 1 LED blinks. Charge state ≥ 50%
1 LED lights, 1 LED blinks. Charge state ≥ 25%
1 LED blinks. Charge state < 25%
During charging outside the device
Status Meaning
Red LED on the battery lights. Battery is charging
Red LED on the battery does not light. Charge state 100%

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3.5 Items supplied
Automatic tripod PRA 90, Li-ion battery PRA 84, AC adapter PRA 85, carry strap, operating instructions,
manufacturer's certificate.
Other system products approved for use with this product can be found at your local Hilti Store or at:
www.hilti.group
4 Technical data
4.1 Technical data PRA 90
Rated voltage 7.2 V
Rated current 1,500 mA
Communication range with PRA 30 in direction of the tripod con-
trol panel
164 ft
Communication range with PRA 30 to the side of, or in the oppo-
site direction of, the tripod control panel
98.43 ft
Transportation length 37 in
Weight 18 lb
Carry weight ≤ 11 lb
Maximum height (with rotating laser) 6.4 ft
Minimum height (with rotating laser) 3.18 ft
Maximum site elevation above datum 6,561 ft - 10 in
Maximum relative humidity 80 %
Total travel 21 in
Smallest travel 0.010 in
Operating temperature −4 ℉ … 140 ℉
Storage temperature −13 ℉ … 140 ℉
Protection class IP 56
Tripod thread ⁵⁄₈" x 11 mm (0.43")
4.2 Technical data PRA 84
Rated voltage 7.2 V
Maximum voltage during operation or during charging while in
operation
13 V
Charging time at 32 °C (+90 °F) 130 min
Operating temperature −4 ℉ … 122 ℉
Storage temperature (dry) −13 ℉ … 140 ℉
Charging temperature 32 ℉ … 104 ℉
Weight 0.7 lb
4.3 Technical data PRA 85
Mains power supply 115 V … 230 V
AC frequency 47 Hz … 63 Hz
Rated power 36 W
Rated voltage 12 V
Operating temperature 32 ℉ … 104 ℉
Storage temperature (dry) −13 ℉ … 140 ℉
Weight 0.51 lb

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5 Before use
5.1 Charging the battery 2
This tripod must only be operated with the Hilti battery PRA 84.
▶Charge the batteries fully before using them for the first time.
5.1.1 Charging the battery in the tool 2
WARNING
Electrical hazards. If liquids penetrate the tool, they may cause the AC adapter to short circuit and explode.
This may result in serious injury and cause burns!
▶The PRA 85 AC adapter is for indoor use only.
1. Place the battery into the battery compartment.
2. Rotate the socket cover so that the charging socket on the battery can be seen.
3. Plug the cord from the AC adapter or motor vehicle power adapter into the battery.
4. Connect the AC adapter or the motor vehicle power adapter to the power supply.
The current charge status is shown by the battery display on the tripod when it is switched on.
5.1.2 Charging the battery externally (not in the tool) 2
WARNING
Electrical hazards. If liquids penetrate the tool, they may cause the AC adapter to short circuit and explode.
This may result in serious injury and cause burns!
▶The PRA 85 AC adapter is for indoor use only.
1. Remove the battery from the tripod and plug in the connector of the AC adapter or the motor vehicle
power adapter.
2. Connect the AC adapter or the motor vehicle power adapter to the power supply.
The red LED on the battery lights while charging is in progress.
5.1.3 Charging the battery while the tool is in operation 2
1. Turn the cover so that the charging socket on the battery can be seen.
2. Plug the connection of the AC adapter into the battery.
▶The tripod works during the charging operation and the charge state is displayed by the LEDs on the
tripod.
5.2 Inserting the battery 3
Check that the terminals on the battery and on the tripod are free from foreign objects before inserting
the battery.
1. Slide the battery into the holder on the tripod.
2. Turn the catch two notches in a clockwise direction until the “locked” symbol appears.
5.3 Removing the battery
1. Turn the catch two notches in an counter-clockwise direction until the “unlocked” symbol appears
2. Remove the battery from the tool.

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6 Operation
6.1 Fitting rotating laser to tripod
Only fit devices that weigh no more than 5 kg (11 lbs).
▶Screw the rotating laser onto the tripod.
6.2 Working with the tripod without the remote control unit
1. Press the On/Off button on the tripod.
▶The tripod switches on.
2. On the control panel of the tripod, press the appropriate arrow buttons in order to move the tripod
upwards or downwards.
6.3 Working with tripod and laser receiver/remote control unit 4,5
Before use, the laser receiver/remote control unit has to be paired with the tripod to enable
communication between the two devices.
The rotating laser also has to be paired separately with the laser receiver/remote control unit. This
establishes the three-device pairing that is essential for automatic alignment of the laser plane.
1. Press the On/Off button on the tripod and on the remote control unit and hold the buttons pressed
simultaneously for at least 3 seconds.
▶Successful pairing is indicated by a chain symbol on the display of the laser receiver/remote control
unit, accompanied by flashing of all the LEDs on the PRA 90. Both devices then switch off
automatically.
2. Switch the tripod, the rotating laser and the laser receiver/remote control unit on.
▶The display of the laser receiver/remote control shows the rotating laser including tripod, with the
active wireless connection depicted as a wave.
▶If there is no active radio connection, a warning triangle appears on the display instead of the wave.
6.4 Align using the automatic tripod PRA 90
When used for the first time, the laser receiver/remote control unit has to be paired with the tripod.
1. Screw the rotating laser onto the tripod. → page 7
2. Switch the tripod, the rotating laser and the laser receiver/remote control unit on. → page 7
3. Now align the height of the laser plane manually → page 7 or automatically → page 7.
6.4.1 Manual alignment 6
▶On the laser receiver/remote control unit press the +/- buttons or on the PRA 90 press the arrow buttons
to move the horizontal plane up or down in parallel.
6.4.2 Automatic alignment 7
1. Hold the receiver side of the laser receiver/remote control unit at the desired target height and facing
toward the control panel of the PRA 90. Hold the laser receiver/remote control unit steady while alignment
is in progress and make sure that the line of sight between laser receiver/remote control unit and rotating
laser is clear.
2. Double-click the "Automatic alignment" button on the laser receiver/remote control unit. Double-click
the button again to end the alignment procedure.
▶This double-click starts the process of bringing the laser plane into alignment, and the tripod moves
up or down, as appropriate. An acoustic signal sounds continuously while this is in progress. As
soon as the laser beam strikes the detection area of the laser receiver/remote control unit, the beam
moves toward the position of the marking notch (reference plane). When the position is reached and
the rotating laser has leveled itself, a signal tone of five seconds' duration sounds to indicate the
conclusion of the process. The “Automatic alignment” symbol disappears.

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3. Check the height settings in the display.
4. Remove the laser receiver/remote control unit.
If the automatic alignment process was not successful, short signal tones are emitted and the
“Automatic alignment” symbol goes out.
7 Care and maintenance
Observe the temperature limits of 25 °C (-13 °F) to +60 °C (140 °F) if you keep your equipment inside
a motor vehicle.
• Always keep the threaded rod free from coarse dirt and concrete residues.
• Use only a clean, soft cloth for cleaning. If necessary, moisten the cloth slightly with pure alcohol or
water. Do not use any other liquids as these may affect the plastic parts.
8 Transport and storage
Transport
CAUTION
Unintentional start-up during transportation. If batteries are left inserted, the tool may start up
unintentionally during transportation and the therefore may be damaged.
▶Always transport the tool with the batteries removed.
• After use, wind the threaded rod down fully.
• Remove the battery.
• Only now fold in the tripod legs.
• For transporting or shipping your equipment, either use the Hilti shipping box, the Hilti transport pouch
or an equivalent form of packaging.
• Always check the accuracy of the equipment before it is used after a prolonged period of transportation.
Storage
CAUTION
Unintentional damage caused by defective batteries. Leaking batteries may damage the tool.
▶Always store the tool without the batteries inserted.
• Store tools and appliances in a dry place where they cannot be accessed by children or unauthorized
persons.
• Remove the tool from its case if it has become wet. Tools, carrying cases and accessories should be
dried and cleaned at a maximum temperature of 40 °C (104 °F).
• Repack and store the equipment only once it is completely dry.
• Always check the accuracy of the equipment before it is used after a prolonged period of storage.
• Store the battery in a place that is as cool and dry as possible.
Never store the battery where it is exposed to direct sunlight or sources of heat, e.g. on heaters /
radiators or behind glass.
9 Troubleshooting
If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by
yourself, please contact Hilti Service.
9.1 Troubleshooting
Trouble or fault Possible cause Action to be taken
Tripod does not respond. Tripod not switched on. ▶Switch on tripod.
Tripod not paired. ▶Pair the remote control unit with
the tripod. → page 7

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Trouble or fault Possible cause Action to be taken
Tripod cannot be switched
on.
Battery not fully inserted or empty. ▶Insert the battery so that a
“click” is heard or charge the
battery.
Automatic alignment not suc-
cessful.
The desired height is outside the
maximum possible setting height.
▶Check the adjustment height.
Excessive vibration from external
influences.
▶Completely unfold the tripod
and check that it stands firmly.
Tripod is out of range. ▶Approach the tripod more
closely with the remote control
unit and/or align the control
panel towards the remote
control unit.
Setting the monitoring mode
is not successful.
The desired height is outside the
maximum possible setting height.
▶Check the adjustment height.
Excessive vibration from external
influences.
▶Completely unfold the tripod
and check that it stands firmly.
Tripod is out of range. ▶Approach the tripod more
closely with the remote control
unit and/or align the control
panel towards the remote
control unit.
10 Disposal
WARNING
Risk of injury due to incorrect disposal! Health hazards due to escaping gases or liquids.
▶DO NOT send batteries through the mail!
▶Cover the terminals with a non-conductive material (such as electrical tape) to prevent short circuiting.
▶Dispose of your battery out of the reach of children.
▶Dispose of the battery at your Hilti Store, or consult your local governmental garbage disposal or public
health and safety resources for disposal instructions.
Most of the materials from which Hilti products are manufactured can be recycled. The materials must be
correctly separated before they can be recycled. In many countries, your old tools, machines or appliances
can be returned to Hilti for recycling. Ask Hilti Service or your Hilti sales representative for further information.
▶Do not dispose of power tools, electronic equipment or batteries as household waste!
11 Manufacturer’s warranty
▶Please contact your local Hilti representative if you have questions about the warranty conditions.

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12 FCC statement (applicable in US) / IC statement (applicable in Canada)
CAUTION
Interference to radio reception Use of the product in residential areas may cause interference to radio
reception.
▶This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause interference to radio communications.
▶However, there is no guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by taking the following
measures: Re-orient or relocate the receiving antenna. Increase the distance between the equipment
and receiver. Consult the dealer or an experienced TV/radio technician for assistance.
Changes or modifications not expressly approved by Hilti may restrict the user’s authorization to operate
the equipment.
This device is in compliance with paragraph 15 of the FCC Regulations RSS210 of the IC Regulations.
Operation is subject to the following two conditions:
This device shall cause no harmful interference.
This device must accept any interference received, including interference that may cause undesired operation.
Mode d'emploi original
1 Indications relatives à la documentation
1.1 À propos de cette documentation
• Lire intégralement la présente documentation avant la mise en service. C'est la condition préalablement
requise pour assurer la sécurité du travail et un maniement sans perturbations.
• Bien respecter les consignes de sécurité et les avertissements de la présente documentation ainsi que
celles figurant sur le produit.
• Toujours conserver le mode d'emploi à proximité du produit et uniquement le transmettre à des tiers
avec ce mode d'emploi.
1.2 Explication des symboles
1.2.1 Avertissements
Les avertissements attirent l'attention sur des dangers liés à l'utilisation du produit. Les termes de
signalisation suivants sont utilisés :
DANGER
DANGER !
▶Pour un danger imminent qui peut entraîner de graves blessures corporelles ou la mort.
AVERTISSEMENT
AVERTISSEMENT !
▶Pour un danger potentiel qui peut entraîner de graves blessures corporelles ou la mort.
ATTENTION
ATTENTION !
▶Pour une situation potentiellement dangereuse pouvant entraîner des blessures corporelles ou des
dégâts matériels.
1.2.2 Symboles dans la documentation
Les symboles suivants sont utilisés dans la présente documentation :

*2034574* 2034574 Français 11
Lire le mode d'emploi avant d'utiliser l'appareil
Pour des conseils d'utilisation et autres informations utiles
Maniement des matériaux recyclables
Ne pas jeter les appareils électriques et les accus dans les ordures ménagères
1.2.3 Symboles dans les illustrations
Les symboles suivants sont utilisés dans les illustrations :
Ces chiffres renvoient à l'illustration correspondante au début du présent mode d'emploi
La numérotation détermine la séquence des étapes de travail dans l'image et peut se différencier
de celles des étapes de travail dans le texte
Les numéros de position sont utilisés dans l'illustration Vue d’ensemble et renvoient aux numé-
ros des légendes dans la section Vue d'ensemble du produit
Ce signe doit inviter à manier le produit en faisant particulièrement attention.
1.3 Symboles spécifiques au produit
1.3.1 Symboles sur le produit
Les symboles suivants sont utilisés sur le produit :
Doit uniquement être utilisé à l'intérieur
1.4 Informations produit
Les produits sont destinés aux professionnels et ne doivent être utilisés, entretenus et réparés
que par un personnel autorisé et formé. Ce personnel doit être spécialement instruit quant aux dangers
inhérents à l'utilisation de l'appareil. Le produit et ses accessoires peuvent s'avérer dangereux s'ils sont
utilisés de manière incorrecte par un personnel non qualifié ou de manière non conforme à l'usage prévu.
La désignation du modèle et le numéro de série figurent sur sa plaque signalétique.
▶Inscrivez le numéro de série dans le tableau suivant. Les informations produit vous seront demandées
lorsque vous contactez nos revendeurs ou services après-vente.
Caractéristiques produit
Trépied motorisé PRA 90
Génération 01
N° de série
2 Sécurité
2.1 Consignes de sécurité
Outre les consignes de sécurité stipulées dans les différents chapitres du présent mode d'emploi ou
les instructions de sécurité des notices d'utilisation correspondant aux lasers rotatifs utilisés, il importe
de toujours bien respecter les directives suivantes.
Indications générales de sécurité
Ne pas neutraliser les dispositifs de sécurité ni enlever les plaquettes indicatrices et les plaquettes
d’avertissement.
Installation appropriée du poste de travail
▶Délimiter le périmètre de mesures. Lors de l’installation de l’appareil, veiller à ne pas diriger le
faisceau contre soi-même ni contre de tierces personnes.
▶Si les opérations d'orientation sont faites à partir d'une échelle, éviter toute mauvaise posture.
Veiller à toujours rester stable et à garder l'équilibre.

12 Français 2034574 *2034574*
▶Veiller à installer l'appareil sur un support plan et stable (pour éviter toutes vibrations !).
▶Utiliser l'appareil uniquement dans les limites d'application définies.
▶Lors de l'installation et de l'utilisation du trépied, veiller à ce qu'aucune partie du corps ne se
trouve sous le trépied.
▶Ne pas utiliser le trépied comme engin de levage ou auxiliaire de levage.
▶Tenir les enfants éloignés. Veiller à ce que personne ne se tienne à proximité de l'espace de travail.
▶Lors de l'installation du trépied en intérieur, faire attention à la surface du sol, le trépied risque de
les rayer.
Compatibilité électromagnétique
▶Bien que l'appareil réponde aux sévères exigences des directives pertinentes, Hilti ne peut exclure la
possibilité que l'appareil soit perturbé sous l'effet d'un fort rayonnement, ce qui pourrait provoquer un
dysfonctionnement. Dans ce cas ou en cas d'autres incertitudes, il est conseillé d'effectuer des mesures
de contrôle pour vérifier la précision de l'appareil. De même, Hilti ne peut exclure l'éventualité que
d'autres appareils (p. ex. systèmes de navigation des avions) soient perturbés.
Consignes de sécurité générales
▶Avant toute utilisation, l'appareil doit être contrôlé. Si l'appareil est endommagé, le faire réparer par le
S.A.V. Hilti.
▶Toujours tenir la tige filetée du PRA 90 dégagée de tout objet / partie du corps et exempte de
salissures.
▶Ne pas introduire les doigts ou une autre partie du corps dans les tubes des pieds ou tout autre
endroit du trépied, pour écarter tout risque de blessures.
▶Bien que l'appareil soit conçu pour être utilisé dans les conditions de chantier les plus dures, en
prendre soin comme de tout autre dispositif électrique.
▶Bien que l'appareil soit parfaitement étanche, il est conseillé d'éliminer toute trace d'humidité en
l'essuyant avant de le ranger dans son coffret de transport.
▶Brancher le bloc d'alimentation uniquement au secteur.
▶S'assurer que l'appareil et le bloc d'alimentation ne forment pas d'obstacle pouvant entraîner des
chutes ou des blessures.
▶Veiller à ce que l'espace de travail soit bien éclairé.
▶Contrôler régulièrement les câbles de rallonge et les remplacer s'ils sont endommagés. Si le bloc
d'alimentation ou le câble de rallonge est endommagé pendant le travail, ne pas le toucher.
Débrancher la fiche de la prise. Les cordons d'alimentation et câbles de rallonge endommagés
représentent un danger d'électrocution.
▶Éviter le contact physique avec des surfaces mises à la terre telles que des tuyaux, radiateurs,
cuisinières et réfrigérateurs. Il y a un risque élevé de choc électrique au cas où votre corps serait relié
à la terre.
▶Protéger le câble de la chaleur, de l'huile et des arêtes vives.
▶Ne jamais faire fonctionner le bloc d'alimentation s'il est encrassé ou mouillé. Dans de mauvaises
conditions d'utilisation, la poussière collée à la surface du bloc d'alimentation, surtout la poussière
de matériaux conducteurs, ou l'humidité, peuvent entraîner une électrocution. C'est pourquoi il
convient de faire réviser les appareils encrassés par le S.A.V. Hilti à intervalles réguliers, surtout
s'ils sont utilisés sur des matériaux conducteurs.
▶Éviter de toucher les contacts.
▶Utiliser la sangle de transport fournie pour porter plus facilement le PRA 90. Ce faisant, lors du
transport du PRA 90, faire attention à ne pas se blesser ni blesser une autre personne. Lors du
transport, veiller en particulier à la position des pointes des pieds.
▶Après utilisation du PRA 90, toujours s'assurer que la tige filetée est complètement descendue
avant de refermer les pieds du trépied.
Utilisation et emploi soigneux des appareils sans fil
▶Utiliser uniquement les accus homologués pour l'appareil concerné. En cas d'utilisation d'autres
accus ou d'utilisation des accus à d'autres fins, il y a risque d'incendie et d'explosion.
▶Ne pas exposer les accus à des températures élevées ni au feu. Il y a risque d'explosion.
▶Les accus ne doivent pas être démontés, écrasés, chauffés à une température supérieure à 80 °C
(176 °F) ou jetés au feu. Sinon, il y a risque d'incendie, d'explosion et de brûlure.
▶Éviter toute pénétration d'humidité dans les accus. Toute infiltration d'humidité risque de provoquer
un court-circuit ainsi que des réactions chimiques, susceptibles d'entraîner des brûlures ou de provoquer
un incendie.
▶Respecter les directives spécifiques relatives au transport, au stockage et à l'utilisation des accus
LiIon.

*2034574* 2034574 Français 13
▶Éviter tout court-circuit sur l'accu. Avant de réinsérer l'accu dans l'appareil, s'assurer que les
contacts de l'accu et dans l'appareil sont exempts de corps étrangers. Si les contacts d'un accu
sont court-circuités, il y a risque d'incendie, d'explosion et de brûlure.
▶Les accus endommagés (p. ex. accus fissurés, pièces cassées, contacts tordus, déformés vers
l'intérieur et/ou l'extérieur) ne doivent plus être chargés ni utilisés.
▶Pour faire fonctionner l'appareil et charger l'accu, utiliser uniquement le bloc d'alimentation PRA 85
ou la fiche pour allume-cigare PRA 86. Sinon, il y a risque d'endommager l'appareil.
3 Description
3.1 Vue d'ensemble du produit 1
@Laser rotatif
;Raccord du laser 5/8"
=Tête du trépied
%Compartiment à accu
&Pieds extensibles
(Panneau de commande
)Indicateur de l'état de charge
+– Réglage de la hauteur
§– Affichage à LED
/Touche Marche/ Arrêt
3.2 Utilisation conforme à l'usage prévu
Le produit décrit est un trépied automatique qui peut être monté sur un laser rotatif. Le trépied peut être
réglé en hauteur à l'aide du panneau de commande ou d'une télécommande. Le trépied et le laser rotatif qui
est monté dessus permettent une mise à niveau d'un plan horizontal à une certaine hauteur cible, le report
de repères métriques, la mise à niveau horizontale ou le contrôle des hauteurs horizontales.
▶Pour ce produit, utiliser exclusivement les accus LiIon Hilti PRA 84.
▶Pour ces accus, utiliser uniquement le bloc d'alimentation Hilti PRA 85.
Le trépied peut être commandé de deux façons différentes : via le panneau de commande directement sur le
trépied ou avec un récepteur laser/une télécommande Hilti (en combinaison avec un laser rotatif Hilti pour
mise à niveau et surveillance automatiques).
Récepteurs laser/commandes à distance compatibles :
• PRA 30
• PRA 30G
• PRA 300
3.3 Orientation automatique
Le trépied peut être orienté automatiquement avec les lasers rotatifs Hilti PR 30HVS A12, PR 30HVSG A12
ou PR 300HV2S. Ces lasers rotatifs ont été spécialement adaptés au PRA 90 et sont dotés d'une commu-
nication 3 appareils entre le trépied, le laser rotatif et le récepteur laser/la télécommande correspondant(e).
L'interaction de ces 3 composants permet d'orienter automatiquement un plan laser sur un point précis.
Pour ce faire, il suffit d'indiquer la hauteur cible à l'aide du récepteur laser / de la télécommande et le PRA 90
oriente le plan laser du laser rotatif exactement à la bonne hauteur.
En cas d'utilisation d'autres lasers rotatifs, une orientation automatique n'est pas possible.
3.4 Indicateur de l'état de charge
Charge de l'accu dans l'appareil en cours de fonctionnement
État Signification
4 LED allumées. État de charge 100 %
3 LED sont allumées, 1 LED clignote. État de charge ≥ 75 %
2 LED sont allumées, 1 LED clignote. État de charge ≥ 50 %

14 Français 2034574 *2034574*
État Signification
1 LED est allumée, 1 LED clignote. État de charge ≥ 25 %
1 LED clignote. État de charge < 25 %
Pendant le processus de charge hors de l'appareil
État Signification
LED rouge allumée sur l'accu. L'accu est en cours de charge
LED rouge éteinte sur l'accu. État de charge 100 %
3.5 Éléments livrés
Trépied motorisé PRA 90, accu Li-Ion PRA 84, bloc d'alimentation PRA 85, sangle de transport, mode
d'emploi, certificat du fabricant.
D'autres produits système pour votre produit peuvent être trouvés dans votre Hilti Store ou à l'adresse :
www.hilti.group
4 Caractéristiques techniques
4.1 Caractéristiques techniques PRA 90
Tension nominale 7,2 V
Courant nominal 1.500 mA
Portée de communication avec PRA 30 selon la direction du pan-
neau de commande du trépied
164 ft
Portée de communication avec PRA 30 dans le sens latéral ou
inverse du panneau de commande du trépied
98,43 ft
Longueur de transport 37 in
Poids 18 lb
Poids de portée ≤ 11 lb
Hauteur maximale (avec laser rotatif) 6,4 ft
Hauteur minimale (avec laser rotatif) 3,18 ft
Hauteur d'utilisation maximale au-dessus de la hauteur de réfé-
rence
6.561 ft ‒ 10 in
Humidité relative maximale de l'air 80 %
Chemin de déplacement total 21 in
Chemin de déplacement minimal 0,010 in
Température de service −4 ℉ … 140 ℉
Température de stockage −13 ℉ … 140 ℉
Classe de protection IP 56
Trépied avec filetage ⁵⁄₈" x 11 mm (0,43")
4.2 Caractéristiques techniques PRA 84
Tension nominale 7,2 V
Tension maximale en fonctionnement ou en charge en cours de
fonctionnement
13 V
Durée de la charge à 32 °C (+90 °F) 130 min
Température de service −4 ℉ … 122 ℉
Température de stockage (à sec) −13 ℉ … 140 ℉
Température de charge 32 ℉ … 104 ℉
Poids 0,7 lb