2034574* 2034574
PRA 90
Operating instructions
en
Manual de instrucciones
es
Mode d’emploi
Printed: 07.07.2013 | Doc-Nr: PUB / 5136610 / 000 / 00
fr
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ORIGINAL OPERATING INSTRUCTIONS
PRA 90 automatic tripod
It is essential that the operating instructions
are read before the tool is operated for the
first time.
Always keep these operating instructions together with the tool.
Ensure that the operating instructions are
with the tool when it is given to other persons.
Contents
1 General information
2 Description
3 Accessories
4 Technical data
5 Safety instructions
6 Before use
7 Operation
8 Care and maintenance
9 Troubleshooting
10 Disposal
11 Manufacturer’s appliance warranty
12 FCC statement / IC statement
Page
1
2
3
4
5
6
7
9
9
10
10
11
1 These numbers refer to the corresponding illustrations. The illustrations can be found on the fold-out cover
pages. Keep these pages open while studying the operating instructions.
System overview 1
@ PRA 35 remote control unit/laser receiver
; PRA 92 remote control unit
= PRA 90 automatic tripod
en
Controls and device components of the PRA 90 2
@ 5/8" thread
; Tripod head
= Control panel
% Battery compartment
& Extendable legs
PRA 90 control panel 4
@ ON/OFF button
; Direction buttons (up/down)
= Battery charge status indicator
Controls for PRA 92 remote control unit 5
@ “Command sent” LED
; ON/OFF button
= Direction buttons (up/down)
PRA 35 control panel (on the front of the receiver) 3
@ On/Off button
; Special line function (double click)
= Unit button
% Volume button
& Automatic alignment button (double click)
( Monitoring mode button (double click)
) Receiving field
+ Marking notch
§ Display
PRA 35 control panel (on the rear of the remote control) 6
@ Sleep mode button
; Speed of rotation button
= Line function button
% Direction buttons (up/down)
& Direction buttons (left/right)
( Button lock (double click)
1 General information
1.1 Safety notices and their meaning
DANGER
Draws attention to imminent danger that will lead to
serious bodily injury or fatality.
WARNING
Draws attention to a potentially dangerous situation that
could lead to serious personal injury or fatality.
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CAUTION
Draws attention to a potentially dangerous situation that
could lead to slight personal injury or damage to the
equipment or other property.
en
NOTE
Draws attention to an instruction or other useful information.
1.2 Explanation of the pictograms and other
information
Warning signs
General
warning
Location of identification data on the tool
The type designation and serial number can be found
on the type identification plate on the appliance. Make
a note of 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.:
Warning:
caustic
substances
Warning:
electricity
For indoor
use only
Return waste
material for
recycling.
Symbols
Read the
operating
instructions
before use.
2 Description
2.1 Use of the product as directed
The PRA 90 is an automatic tripod onto which a rotating laser can be fitted. The tripod can be moved upwards and
downwards using 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. Examples of applications using the rotating laser are
the transfer of meter marks, horizontal alignment at a target height or the examination of horizontal heights.
Use of appliances/mains adapters which show visible signs of damage is not permissible. Operation in the “Charging
during operation” mode is not permissible for outdoor operations or in damp surroundings.
To avoid the risk of injury, use only genuine Hilti tools and accessories.
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 power tool or appliance where there is a risk
of fire or explosion.
Modification of the appliance or tampering with its parts is not permissible.
2.2 Automatic alignment of tripod and rotating laser 7
The tripod can essentially be used with most types of rotating laser. The greatest benefit, however, is achieved if the
Hilti PR 35 rotating laser is used. The PR 35 rotating laser was specially designed for the PRA 90 and has a 3-appliance
communication system between the tripod, the rotating laser and the corresponding PRA 35 remote control unit/laser
receiver.
The combination of the PRA 90, the PR 35 rotating laser and the PRA 35 remote control unit/laser receiver which
comes supplied with the PR 35 enables a laser plane to be automatically aligned onto a precise point. In this operation,
only the target height has to be indicated using the PRA 35 and the PRA 90 moves the laser plane of the PR 35 rotating
laser exactly to the required height.
If a rotating laser other than the PR 35 is used, you will need the PRA 92 remote control unit in order to move the
tripod up and down.
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2.3 Tripod with PRA 92 remote control unit (accessory) 8
The tripod can be operated with the PRA 92 remote control unit. In this case, however, automatic alignment is not
possible and the user has to move the appliance to the desired height himself.
2.4 Protective equipment
en
Slip clutch in the tripod
2.5 Items supplied
1
PRA 90 automatic tripod
1
PRA 85 mains adapter
1
1
1
1
PRA 84 Li‑ion battery
Carrying strap
Operating instructions
Manufacturer’s certificate
2.6 Charge status of the Li‑ion battery during operation and during charging when the battery is in the
appliance
LEDs light constantly
LEDs blink
Charge status C
LED 1, 2, 3, 4
-
LED 1, 2, 3
LED 4
C ≧75%
LED 1, 2
LED 3
50 % ≦ C < 75 %
LED 1
-
LED 2
25 % ≦ C < 50 %
LED 1
C < 25 %
C = 100 %
2.7 Charge status of the Li‑ion battery during charging when the battery is not in the appliance
When the red LED on the battery remains constantly lit, the battery is being charged.
When the red LED on the battery is not lit, the battery is then fully charged
3 Accessories
Designation
Short designation
Various rotating lasers 1
Remote control unit/laser receiver
PRA 35
Remote control unit
PRA 92
Tripod bag for PRA 90
PUA 44
Universal tripod bag
PUA 40
Battery
PRA 84
Mains adapter
PRA 85
Car battery connector
PRA 86
Description
PR 35*, PRE 3, PRE 38, PR 26, PRI 2
or older models, or models from other
manufacturers.
1 *recommended rotating laser
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4 Technical data
Right of technical changes reserved.
en
PRA 90 tripod
Communication range with PRA 35
Transportation length
50 m (164.04 ft)(in direction of the tripod control panel)
30 m (98.43 ft)(to the side of or in the opposite direction
of the tripod control panel)
94 cm (37.01")
Weight
8 kg (17.64 lb)
Carry weight
Max. 5 kg (Max. 11.02 lb)
Max. height (with rotating laser)
1.95 m (6.4 ft)
Min. height (with rotating laser)
0.97 m (3.18 ft)
Total travel
54 cm (21.26")
Smallest travel
0.25 mm (0.01")
Current
On average 1000 mA at 7.2 V, when rotating laser is
fitted on tripod and in motion
400 strokes
Battery operating time, approx.
Operating temperature
-20…+50°C (−4…+122 °F)
Storage temperature
-25…+60°C (−13…+140 °F)
IP protection class
IP 56
Tripod thread
⁵⁄₈" x 11 mm (0.43")
PRA 84 Li‑ion battery
Nominal voltage (normal mode)
7.2 V
Maximum voltage (during operation or during charging
while in operation)
Charging time
13 V
Operating temperature
-20…+50°C (−4…+122 °F)
Storage temperature (dry)
-25…+60°C (−13…+140 °F)
Charging temperature (also for charging during operation)
Weight
+0…+40°C (+32…+104 °F)
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")
PRA 85 mains adapter
Mains power supply
Mains frequency
130 min / +32°C (+90 °F) / Battery 80% charged
115…230 V
47…63 Hz
Rated power
36 W
Nominal voltage
12 V
Operating temperature
+0…+40°C (+32…+104 °F)
Storage temperature (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")
PRA 92 remote control unit (optional accessory)
Mode of communication
Radio frequency 2.4GHz
Power supply
2 AA battery cells
Dimensions
88 mm (3.46") x 50 mm (1.97") x 28 mm (1.1")
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Operating temperature
-20…+50°C (−4…+122 °F)
Storage temperature
-25…+60°C (−13…+140 °F)
5 Safety instructions
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.
5.1 General safety measures
Do not render safety devices ineffective and do not
remove information and warning notices.
5.2 Proper organization of the workplace
a)
b)
c)
d)
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.
b) 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.
c) Ensure that the appliance is set up on a stable,
level surface (not subject to vibration).
d) Only use the appliance within the defined limits.
e) Take care to ensure that no parts of the body are
located under the tripod when the tripod is set up
or in operation.
f) Do not use the tripod as a hoist or lifting aid.
g) Keep children away. Keep other persons away
from the working area.
h) 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.
a)
5.2.1 Electromagnetic compatibility
Although the tool complies with the strict requirements of
the applicable directives, Hilti cannot entirely rule out the
possibility of interference to the tool caused by powerful
electromagnetic radiation, 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).
en
5.3 General safety measures
e)
f)
g)
h)
i)
j)
k)
l)
m)
n)
Check the condition of the tool before use. If the tool
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.
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 appliance is protected against the
entry of moisture, it should be wiped dry before
being put away in its transport container.
Only use the mains adapter for connecting to the
mains supply.
Ensure that the appliance and mains 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 damage is found. Do not touch
the mains adapter if the extension cord or mains
adapter are damaged while working. Disconnect
the supply cord plug from the power outlet. Damaged supply cords present a risk of electric shock.
Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric
shock if your body is earthed or grounded.
Do not expose the supply cord to heat, oil or sharp
edges.
Never operate the mains adapter when it is dirty
or wet. Dust (especially dust from conductive materials) or dampness adhering to the surface of
the mains adapter may, under unfavorable conditions, lead to electric shock. Dirty or dusty appliances should thus be checked at a Hilti service
center 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 trans-
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en
porting 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.
o) Ensure that, when use of the PRA 90 is completed,
the threaded rod has always been fully wound
down before the legs of the tripod are folded
together.
5.3.1 Battery tool use and care
Do not use batteries other than those approved
for use with the applicable tool or appliance. Use
of other batteries or use of the battery for purposes
for which it is not intended presents a risk of fire and
explosion.
b) Do not expose batteries to high temperatures or
fire. This presents a risk of explosion.
c) Do not disassemble, squash or incinerate batteries and do not subject them to temperatures
a)
over 75°C (167°F). A risk of fire, explosion or injury through contact with caustic substances may
otherwise result.
d) Avoid ingress of moisture. Moisture may cause a
short circuit resulting in a risk of burning injury or fire.
e) Observe the special instructions applicable to the
transport, storage and use of Li-ion batteries.
f) Avoid short-circuiting the battery.Before inserting
the battery in the tool or appliance, check that the
terminals of the battery and the tool or appliance are
free from foreign objects. Short-circuiting the battery
terminals presents a risk of fire, explosion or contact
with caustic substances.
g) 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).
h) Only use the PRA 85 mains adapter or the PRA 86
car battery connector for operating the appliance
and charging the battery. There is otherwise a risk
that the appliance may be damaged.
6 Before use
NOTE
The PR 90 may only be operated using the Hilti PRA 84
battery.
6.2 Options for charging the battery
6.1 Charging the battery
DANGER
The PRA 85 mains adapter is for indoor use only.
Avoid ingress of moisture.
6.2.1 Charging the battery when it is still in the
appliance 9
DANGER
Use only the Hilti batteries and Hilti chargers listed
under “Accessories”.
NOTE
Make sure the system to be charged is standing securely
during charging.
6.1.1 Charging a new battery for the first time
Charge the battery fully before using it for the first time.
6.1.2 Charging a previously used battery
Ensure that the outer surfaces of the battery are clean
and dry before inserting it in the corresponding charger.
Lithium-ion battery packs are ready to use at any time,
even when only partially charged. Charging progress is
indicated by the LEDs.
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NOTE
When charging, check that the temperatures are within
the recommended charging temperature range (0 to
40°C/ 32 to 104°F).
1.
2.
3.
4.
Place the battery into the battery compartment.
Turn the catch so that the charging socket on the
battery can be seen.
Plug the connection of the mains adapter or the car
battery connection into the battery.
During charging, the charge status is indicated by
the battery indicators on the appliance (the appliance must be switched on).
6.2.2 Charging the battery outside the appliance 9
NOTE
When charging, check that the temperature is within the
recommended charging temperature range (0 to 40°C/
32 to 104°F).
1.
2.
Remove the battery from the appliance and plug
in the connector of the mains adapter or the car
battery connector.
The red LED on the battery lights up while charging
is in progress.
6.2.3 Charging the battery while the appliance is in
operation 9
CAUTION
Avoid ingress of moisture. Moisture may cause a short
circuit resulting in a risk of burning injury or fire.
1.
2.
3.
4.
Turn the cover so that the charging socket on the
battery can be seen.
Plug the connection of the mains adapter into the
battery.
The appliance continues to operate while charging
is in progress.
During charging, the charging status is indicated by
the LEDs on the appliance.
6.3 Battery use and care
Store the battery in a cool, dry place. Never store the
battery where it is exposed to direct sunlight or sources
of heat, e.g. on heaters / radiators or behind a motor
vehicle windscreen. Batteries that have reached the end
of their life must be disposed of safely and correctly to
avoid environmental pollution.
6.4 Fitting the battery 10
CAUTION
Before inserting the battery in the tool or appliance,
check that the terminals of the battery and the tool or
appliance are free from foreign objects.
1.
Slide the battery into the appliance.
2.
Turn the catch two notches in a clockwise direction
until the “locked” symbol appears.
6.5 Removing the battery
1.
2.
Turn the catch two notches in an counter-clockwise
direction until the “unlocked” symbol appears
Remove the battery from the appliance.
6.6 Pairing 11 12 13
NOTE
When first delivered, PRA 92 tripod and remote control
unit or PRA 35 remote control unit/laser receiver are not
paired. They are not ready for operation until they have
been paired.
In order to use the PR 90 rotating laser with the
PRA 92/PRA 35, these two must be mutually adjusted
and paired. Pairing appliances produces the result that
the appliances are then clearly allocated to each other.
The tripod then only receives signals from the PRA 35
paired with the PRA 92. The pairing enables appliances
to work close to other rotating lasers without the risk
that their settings will be altered by these other lasers.
Press the On/Off buttons on the remote control unit and
the tripod simultaneously and keep them pressed for at
least 3 seconds.
Successful pairing is indicated for the PRA 92 by the
LEDs of both appliances lighting up at the same time.
For the PRA 35, successful pairing is indicated by the
sound of an acoustic signal from the PRA 35 and by the
LEDs lighting up on the PRA 90. At the same time, a
chain icon appears briefly on the PRA 35 display.
Both appliances then switch off automatically.
The tripod cannot be paired with the PRA 35 and PRA 92
at the same time. If the tripod is used alternately with
the PRA 35 and PRA 92, the appliances must be paired
together again each time.
7 Operation
7.1 Fitting rotating laser to tripod
CAUTION
Mount only tools / devices with a weight of up to a
maximum of 5 kg (11 lbs).
Screw the rotating laser onto the tripod
7.2 Operating the tripod 1
The tripod can be operated in 3 different ways: with
PRA 35 remote control/laser receiver in combination with
PR 35 rotating laser for automatic alignment and monitoring), without remote control and with the PRA 92 remote
control.
Hilti recommends the use of the tripod with the PR 35
rotating laser, however the tripod can also be used with
other rotating lasers.
For information on operating the rotating laser, refer to
the operating instructions of the appliances.
The working height of the automatic tripod depends on
the type of rotating laser used. If the PR 35 is used, the
minimum height of the rotating laser beam is 0.97 m (3.2
ft) and the maximum height is 1.95 m (6.4 ft) when the
tripod legs are fully extended.
7.3 Working with the PRA 90 and the PRA 35/
PR 35
7.3.1 Initial pairing 13 11
When used for the first time, the PRA 35 remote control unit/laser receiver must be paired with the tripod in
order to enable secure communication between both appliances which cannot be disturbed by the influence of
other appliances.
The PR 35 rotating laser should also have been paired
separately with the PRA 35. In this way, 3-appliance
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en
pairing is established which is essential for the automatic
alignment of the laser plane.
en
Press the “ON/OFF” buttons on the PRA 35 and on the
tripod simultaneously for at least 3 seconds.
Successful pairing is briefly shown by a chain appearing
on the PRA 35 display and all LEDs flash on the PRA 90.
After indicating the pairing, both appliances switch off
automatically.
7.3.2 Switching on the PRA 90, PR 35 and
PRA 35 14 15
Press each of the ON/OFF buttons on the PRA 90, PR 35
and PRA 35.
The rotating laser (including tripod) is shown on the
display of the PRA 35 remote control unit/laser receiver.
If PRA 35 and PRA 90 are in radio contact, a wave
appears between PRA 35 and the PRA 90 in the PRA 35
display.
If PRA 35 and PRA 90 are not in radio contact, a warning
triangle appears in the PRA 35 display, either between
PR 35 and PRA 35 or between RRA 90 and PRA 35.
5.
7.3.3.2 Monitoring 3 18 19
When working with the tripod for a prolonged period,
it is recommended that the monitoring mode should be
switched on.
1.
2.
3.
7.3.3 Manual and automatic alignment of the laser
plane
NOTE
In order to achieve a perfectly satisfactory and maximum
radio range, always align the control panel of the tripod
towards the PRA 35 remote control unit/laser receiver.
7.3.3.1 Automatic alignment 3 7 16 17
1.
2.
3.
4.
The keypad on the front of the PRA 35 must have
been enabled. This is indicated by an open key
symbol on the display of the front. If the keypad is
not enabled, press twice quickly in succession on
the key locking button on the PRA 35.
The front side of the PRA 35 is unlocked.
Hold the receiver side of the PRA 35 remote control
unit/laser receiver at the desired height and towards
the PRA 90 control panel and, during the alignment
process, hold the PRA 35 still and in clear view
between PRA 35 and PR 35
Double click the “Automatic alignment” button on
the PRA 35 remote control unit/laser receiver.
The laser plane alignment process now starts and
the tripod travels upwards or downwards. During
this time, an acoustic signal sounds continuously.
The alignment procedure can be canceled by simply
double clicking. As soon as the laser beam hits
the receiver field of the PRA 35 remote control
unit/laser receiver, the beam is moved towards the
marking notch (reference plane). After the position
has been reached and the PR 35 rotating laser
has been leveled, a long tone signal sounds which
indicates that the process is complete. In addition,
the automatic alignment icon is no longer shown.
You can now check the height on the display.
Check the settings on the display.
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Remove the PRA 35.
NOTE If the automatic alignment process was not
successful, short signals sound and the automatic
alignment icon goes out.
4.
The keypad on the front of the PRA 35 must have
been enabled. This is indicated by an open key
symbol on the display on the front. If the keypad is
not enabled, press twice quickly in succession on
the key locking button on the PRA 35.
The front side of the PRA 35 is unlocked.
Fit the receiver side of the remote control unit/laser
receiver securely at the desired target height and
towards the PRA 90 control panel and, during the
alignment process, hold the PRA 35 still and in clear
view between PRA 35 and PR 35.
Double click the “Monitoring mode” button on the
PRA 35 remote control unit/laser receiver.
The laser plane alignment process now starts and
the tripod travels upwards or downwards. During
this time, an acoustic signal sounds continuously.
As soon as the laser beam hits the receiver field of
the PRA 35 remote control unit/laser receiver, the
beam is moved towards the marking notch (reference plane). After the position has been reached
(marking notch found), a long tone signal sounds
which indicates that the process is complete.
Check the height on the display.
NOTE The PRA 35 must not be removed in order
that the alignment process can be repeated, automatically and of its own accord.
NOTE If the automatic alignment process was not
successful, short signals sound and a warning triangle appears in the display.
7.3.3.3 Manual alignment 6
1.
2.
3.
The keypad on the rear of the PRA 35 must have
been enabled. This is indicated by an open key
symbol on the display on the rear. If the keypad is
not enabled, press twice quickly in succession on
the key locking button on the PRA 35.
The rear side of the PRA 35 is unlocked.
Press the up/down arrow buttons on the PRA 35
remote control unit/laser receiver.
The tripod travels upwards or downwards.
Check the settings on the display.
This function can only be used in the horizontal
mode of the PR 35 rotating laser and if the PR 35 is
switched on.
7.4 Working with the tripod without remote
control 4
1.
2.
Press the On/Off button on the tripod.
The tripod switches on.
On the control panel of the tripod, press the appropriate arrow buttons in order to move the tripod
upwards or downwards.
7.5 Working with the tripod using the PRA 92
remote control unit (accessory) 1 5 8
Before use, the remote control unit must be paired with
the tripod in order to enable communication between the
two appliances.
1.
2.
Press the On/Off button on the tripod and on the
remote control unit and hold the buttons pressed for
at least 3 seconds.
On the keypad of the remote control unit, press
the appropriate arrow buttons in order to move the
tripod upwards or downwards.
NOTE In order to achieve a perfectly satisfactory
and maximum radio range, always align the control
panel of the tripod towards the PRA 92.
When the tripod is moved (by traveling upwards
or downwards), most rotating lasers indicate either
“Shock” and adjust their level or they show “Shock”
and switch off. In the first minute, the Hilti models
PRE 3, PR 20, PR 25, PR 26 and PRE 38 only
perform a leveling operation. In the leveling phase,
the laser plane can no longer be seen for a short
time.
8 Care and maintenance
8.1 Cleaning and drying
1.
2.
3.
Always keep the threaded rod free from coarse dirt,
especially concrete residue.
Use only a clean, soft cloth for cleaning. If necessary,
moisten the cloth slightly with pure alcohol or a little
water.
NOTE Do not use any other liquids as these may
damage the plastic components.
Observe the temperature limits when storing your
equipment. This is particularly important in winter
/ summer if the equipment is kept inside a motor
vehicle (-25°C to +60°C / -13°F to +140°F).
8.2 Storage
Remove the appliance from its case if it has become wet.
The appliance, its carrying case and accessories should
be cleaned and dried (at maximum 40°C (104°F)). Repack
the equipment only once it is completely dry.
Check the accuracy of the equipment before it is used
after a long period of storage or transportation.
Remove the batteries from the appliance before storing
it for a long period. Leaking batteries may damage the
appliance.
8.3 Transport 20
CAUTION
Ensure that, when use of the PRA 90 is completed,
the threaded rod has always been fully wound down
before the legs of the tripod are folded together.
When transporting your equipment yourself or having it
sent by carrier, use either the Hilti shipping box, the Hilti
transport bag or equivalent packaging.
CAUTION
Always remove the battery/batteries from the appliance before sending by carrier.
9 Troubleshooting
Fault
Possible cause
Remedy
Automatic alignment not successful.
Excessively high level of vibration
caused by external influences (wind,
for example), tripod is outside the operating distance or the desired height
is outside the maximum possible setting height.
Excessively high level of vibration
caused by external influences (wind,
for example), tripod is outside the operating distance or the desired height
is outside the maximum possible setting height.
The tripod must be set up better by
fully folding out the tripod legs.
The tripod must be placed nearer to
the PRA 35 and/or the tripod control
panel must be aligned towards the
PRA 35.
The tripod must be set up better by
fully folding out the tripod legs.
The tripod must be placed nearer to
the PRA 35 and/or the tripod control
panel must be aligned towards the
PRA 35.
Setting the monitoring mode is
not successful.
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en
en
Fault
Possible cause
Remedy
Tripod cannot be switched on.
The battery is discharged or fitted
incorrectly.
Tripod does not respond.
Tripod not switched on.
The battery must engage with an audible click or, respectively, needs to
be charged.
Switch on tripod.
No tripod legs shown in the display of the PRA 35.
A warning triangle appears in
the PRA 35 display between
tripod legs and receiver.
Tripod not paired
Pair PRA 35 with tripod.
PRA 35 and tripod outside radio
range or tripod is switched off.
Tripod does not respond with
PRA 92
Tripod not paired
Tripod must be placed nearer to the
PRA 35 and/or the tripod control
panel must be aligned towards the
PRA 35.
Pair PRA 35 with tripod.
Battery in the PRA 92 flat
Replace the battery.
10 Disposal
CAUTION
Improper disposal of the equipment may have serious consequences: The burning of plastic components generates
toxic fumes which may present a health hazard. Batteries may explode if damaged or exposed to very high
temperatures, causing poisoning, burns, acid burns or environmental pollution. Careless disposal may permit
unauthorized and improper use of the equipment. This may result in serious personal injury, injury to third parties and
pollution of the environment.
CAUTION
Dispose of defective batteries without delay. Keep them out of reach of children. Do not attempt to open or dismantle
batteries and do not dispose of them by incineration.
CAUTION
Dispose of the batteries in accordance with national regulations or return them to Hilti.
Most of the materials from which Hilti tools or machines are manufactured can be recycled. The materials must
be correctly separated before they can be recycled. In many countries, Hilti has already made arrangements for
taking back old tools and appliances for recycling. Ask Hilti customer service or your Hilti representative for further
information.
11 Manufacturer’s appliance warranty
Hilti warrants that the tool supplied is free of defects in
material and workmanship. This warranty is valid so long
as the tool is operated and handled correctly, cleaned
and serviced properly and in accordance with the Hilti
Operating Instructions, and the technical system is maintained. This means that only original Hilti consumables,
components and spare parts may be used in the tool.
This warranty provides the free-of-charge repair or replacement of defective parts only over the entire lifespan
of the tool. Parts requiring repair or replacement as a
result of normal wear and tear are not covered by this
warranty.
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Additional claims are excluded, unless stringent national rules prohibit such exclusion. In particular, Hilti
is not obligated for direct, indirect, incidental or consequential damages, losses or expenses in connection with, or by reason of, the use of, or inability to
use the tool for any purpose. Implied warranties of
merchantability or fitness for a particular purpose are
specifically excluded.
For repair or replacement, send the tool or related parts
immediately upon discovery of the defect to the address
of the local Hilti marketing organization provided.
This constitutes Hilti’s entire obligation with regard to
warranty and supersedes all prior or contemporaneous
comments and oral or written agreements concerning
warranties.
12 FCC statement / IC statement
Increase the separation between the equipment and
receiver.
Consult your dealer or an experienced TV/radio
technician for assistance.
12.1 FCC statement (for USA only)
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 harmful interference
in a residential installation. This equipment generates,
uses and may radiate radio frequency energy. Accordingly, if not installed and used in accordance with the
instructions, it may cause harmful 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
on and off, the user is encouraged to try to correct the
interference by one or more of the following measures:
Re-orient or relocate the receiving antenna.
NOTE
Changes or modifications not expressly approved by Hilti
may void the user’s authority to operate the equipment.
12.2 IC statement (for Canada only)
This equipment complies with requirements of the Industry Canada RSS standard for unlicensed radio devices.
Operation is subject to the following two conditions:
1.
2.
This device may not cause harmful interference, and
This device must accept any interference received,
including interference that may cause undesired operation.
This class A digital device complies with the Canadian
ICES-003 standard.
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en
Hilti Corporation
Printed: 07.07.2013 | Doc-Nr: PUB / 5136610 / 000 / 00
2034574 / A1
2034574
Hilti = registered trademark of Hilti Corp., Schaan
W 4117 | 0313 | 00-Pos. 3 | 1
Printed in Germany © 2013
Right of technical and programme changes reserved S. E. & O.
*2034574*
LI-9494 Schaan
Tel.: +423 / 234 21 11
Fax: +423 / 234 29 65
www.hilti.com
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