PD 20
Operating instructions
*334057*
334057
Operating instructions Contents
PD 20 laser range meter
In addition to the instructions for use,
this manual also contains important
safety information (see “Safety
precautions” section).
Please read these instructions
carefully before using the product.
Symbols
The symbols used in these operating
instructions have the following meanings:
Warning
Operating risk or misuse which may
lead to serious personal injury or
death.
Caution
Operating risk or misuse which may
lead to only minor personal injuries,
but to serious material, property or
environmental damage.
Information to help the operator use
the product in a technically correct
and efficient manner.
Product identification
The type designation and serial number can be
found on a name plate attached to the rear of
the product. Make a note of this information in
the operating instructions and always refer to it
when addressing any enquiries to our agents or
service department.
Type: PD 20 Serial no.:
1. Product information ............................. 5
Description of functions .................................. 5
Display and control panel ............................... 7
Symbols displayed ............................... 7
Button functions .................................... 8
Instructions at a glance .................................. 9
Technical data ...............................................11
Items supplied .............................................. 13
2. Safety information .............................. 14
Please read this now! ................................... 14
Purpose ........................................................ 14
Intended uses ..................................... 14
Examples of misuse ........................... 14
Operating limits ............................................ 15
Division of responsibilities ............................ 15
Operating risks ............................................. 16
Disposal ....................................................... 20
Laser classification ....................................... 21
Information plate .......................................... 22
Electromagnetic compatibility (EMC) ........... 24
3. Operation ............................................. 25
Inserting the batteries ........................... 25
Menu selection and setting ................... 26
Menu overview ................................... 26
rEF menu / reference point ................. 26
CONST menu / constants .................. 27
Light menu / display illumination ........ 27
dELAY menu / self-timer ..................... 27
bEEP menu / beep sound .................. 28
Unit menu / measurement units ......... 28
4. Working with the PD 20 ...................... 29
Measuring distances .................................... 29
Measuring using the spike .................. 30
Continuous measurement (tracking) .. 31
Measuring using the self-timer ........... 32
Measuring with the aid of a target object
33
23
continued
Contents 1. Product information
4. Working with the PD 20, continued
Taking measurements from various
surfaces .............................................. 34
Using the calculation functions .................... 35
Adding / subtracting (distances) ......... 35
Multiplication (areas / volumes) .......... 36
Calculating with Pythagoras ............... 38
Calculating using a constant value ..... 40
5. Care, transportation and storage ...... 41
Cleaning and drying ..................................... 41
Storage ........................................................ 41
Transportation .............................................. 41
6. Symbols displayed ............................. 42
7. Measuring equipment inspection ..... 43
8. Accessories ........................................ 44
Batteries ....................................................... 44
Target plates ................................................ 44
Laser sighting glasses ................................. 44
9. FCC statement (applicable in US) ..... 45
10. EC declaration of conformity ............ 46
11. Warranty .............................................. 47
1. Product information
Description of functions
The Hilti PD 20 is a laser range meter. It makes
use of a laser beam to measures distances
within the 0.3 m - 100m range with great
precision and without physical contact.
3
2
1
6
5
4
7
8
1 Laser exit aperture
2 Display
3 Control panel
4 Receiving lens
5 Plastic casing
6 Bubble level
7 Battery compartment
8 Spike (folding)
9 Two tripod mounting threads
45
9
continued
1. Product information
Description of functions, continued
The point from which the measurement is taken
is clearly identified by the red spot. The range of
the tool depends on the reflectance and surface
finish at the point where the measurement is
taken. The reference point on the tool can be
selected for different types of measurements.
Distances between
0.3 and 30 m
- Target the object directly.
- Use the white target plate.
1. Product information
Display and control panel
Symbols displayed
Reference points on the tool
Front edge of the tool
Tripod thread axis
Rear edge of the tool
(standard setting)
End of the spike (e.g. for taking
measurements from the corner of a
room)
Distances between
30 and 100 m
- Use the brown target plate.
Features
- Compact and functional design
- Simple, self-explanatory menu selection and
menu settings
- One-man, hand-held operation for speed of
use
- Large display (can be illuminated)
- Memory function for constants
- Built-in calculator functions
- Pythagoras button for rapid calculation of
building heights
- Switches off automatically
- The last three measured values remain in
memory
- Built-in bubble level
- Tripod mounting threads
67
Mathematical functions
Addition
Subtraction
Multiplication
Pythagoras
Error messages
Signal received is too weak or too
powerful.
Ambient light too bright
Contact a Hilti service department.
Operating temperature range of the
tool is exceeded
Batteries almost discharged
Tracking (continuous measurement mode)
activated
continued
1. Product information
Display and control panel, continued
Button functions
Display
Select menu
1. Product information
Instructions at a glance
2x
Measure
Calculate
Switch on / off
Recall last measured values (max. 3)
Scroll through active menu
Menu select / exit (rEF/CONSt/Light/
dELAY/bEEP/UNIT).
Recall last measured values (max. 3)
Scroll through active menu
Measure distance or start tracking
Addition
Subtraction
Multiplication
Pythagoras (calculates length of
opposite side of right-angled triangle)
Start calculation or reset display
LASER
- - - - -
2.326 m
Switch tool on / off
89
continued
1. Product information
Instructions at a glance, continued
0.3 - 30 m: 30 - 100 m:
ft in
m
ft in
m
ft in
m
ft in
m
s
rEF
CONSt
Light
dELAY
bEEP
UNIT
0.000 ...
999.999 m
OFF / ON / Auto
0/2/5/10/20 s
Auto/ON/OFF
m / in / ft in
10 11
1. Product information
Technical data
Measuring range
Measuring time
3
m/m2/m
ft in
sq.ft /in
Accuracy
h!
a
Beam diameter
Operating modes
Operating status indicator
Laser Visible, 620 - 690 Nm, laser class 2
Power supply (3 V DC)
0.3 to over 100 m*
Typical measuring range without
target plate
Drywall panel, white 60 m
Concrete, dry 50 m
Brick, dry 50 m
*Maximum range depends on
reflectance of the target surface and
on the brightness of ambient light. If
difficulty is experienced (no measurement possible), the Hilti PA411 target
plate should be used.
0.5 to approx. 4 sec. in individual
measurement mode
0.16 to approx. 1 sec. in continuous
measurement mode (tracking)
± 3 mm individual measurement @ 23° C
(± 0.1
"
individual measurement @ 73° F)
± 5 mm @ 0°C ... + 50°C
(± 0.2" @ + 32 °F ... + 122°F)
± 7 mm @ - 10°C ... + 50°C
(± 0.3" @ 14 °F ... 122°F)
< 6 mm @ 10 m (< 0.2" @ 30 ft)
< 30 mm @ 50 m (< 1.2" @ 150 ft)
< 60 mm @ 100 m (< 2.4" @ 300 ft)
• Individual measurement
• Continuous measurement
• Pre-set distance
• Calculation
Liquid crystal display indicating
individual operating modes and
operating status
(IEC825-1), class II (FDA21 CFR)
Power output: <1 mW
Battery type: AA (LR6, AM3,
Standard: 2 alkaline primary cells
Optional: NiCd rechargeable
round cell R6)
continued
Technical data, continued
Battery life at 25
° C [+ 77° F]
No. of measurements with a duration
of five seconds
Alkaline: 4000
NiCd: 2000
1. Product information
1. Product information
Items supplied
12
PD20
Battery condition
Operating temperature
Storage temperature
Protection class
Mounting points
Weight 380 g (without batteries)
Dimensions
Illustration showing
dimensions [mm]
A warning is displayed when battery
voltage is low.
- 10 °C ... + 50°C (14°F ... 122°F)
- 30 °C ... + 70°C (- 22°F ... 158°F)
Dust and splash-proof
IP 54 as per IEC 529 standard
1/4'’ Whitworth internal thread
One on the side and one underneath
(Standard camera tripod thread)
165 x 67 x 47 mm
(6.5'’ x 2.6'’ x 1.8'’)
3
4
No. Qty. Designation
1 1 PD 20 laser range meter
2 1 Operating instructions
3 2 Batteries, type AA
4 1 Carrying case
12 13
2. Safety information
2. Safety information
Please read this now!
This information is intended to enable owners
and users of the Hilti PD 20 to identify any
operating risks in good time, i.e. to eliminate any
such risks in advance where possible.
The owner of the tool must ensure that these
instructions are understood and followed by all
users.
Purpose
Intended uses
The Hilti PD 20 is intended for the following
range of applications:
• Measuring distances
• Calculating areas, volumes and remote
heights (side of right-angled triangle)
• Addition and subtraction of distances
Examples of misuse
• Use of the product without prior instruction
• Use of the product outside its operating limits
• Rendering safety devices ineffective or
removing notices and warning signs
• Opening the product unless expressly
permitted in certain cases (e.g. to replace the
batteries)
• Making conversions or modifications to the
product
• The use of accessories from other
manufacturers not explicitly approved by Hilti
• The use of a product known to have been
stolen
• Deliberately dangerous or careless behaviour
on scaffolding, when climbing ladders or
when taking measurements in the vicinity of
operating machinery or the exposed parts of
machines or other equipment
• Aiming the product directly at the sun
• Deliberately dazzling other persons
2. Safety information
Intended use, continued
WARNING
Misuse may lead to injury, malfunction
and damage to property. The owner
must inform the user of the operating
risks associated with the equipment
and the corresponding safety
precautions. The PD 20 laser range
meter may be operated only when the
user has received prior instruction.
Operating limits
See “Technical data” section.
Environment
The product is suitable for use in atmospheres
permanently habitable by humans. It must not
be used in corrosive or explosive environments.
Exposure to rain for short periods during use is
permissible.
Division of responsibilities
Responsibility of the manufacturer of
the original equipment, Hilti Corporation,
FL 9494 Schaan (subsequently referred to
as “Hilti”)
Hilti is responsible for supplying a technically
safe product in faultless condition, including
operating instructions and original accessories.
The responsibility of other manufacturers
supplying accessories
The manufacturers of accessories (not supplied
by Hilti) for the Hilti PD 20 are responsible for
the development, implementation and
communication of safety strategies for their
products and the interaction of the latter with the
Hilti product.
14 15
continued
continued
2. Safety information
Division of responsibilities, continued
Responsibility of the owner
WARNING
The owner is responsible for the
correct use of the equipment, the use
of the equipment by his employees,
their instruction and the operating
safety of the equipment.
The owner has the following obligations:
• To ensure that he has understood the safety
information on the product and the
information contained in the operating
instructions.
• To be aware of the locally applicable
industrial accident prevention regulations.
• To notify Hilti immediately of any safetyrelated defects or deficiencies in the
equipment.
Operating risks
WARNING
Use of the product without instruction
or with incomplete instruction may
lead to errors by the operator or
misuse and thus to accidents resulting
in serious personal injury, pecuniary
damage or damage to property and
the environment.
Preventative measures
All users must observe the safety information
issued by the manufacturer and the owner’s
instructions.
CAUTION
Care must be taken to avoid incorrect
measurements.
Preventative measures
Keep the receiving lens clean. It should be
cleaned at regular intervals. See section 5,
“Cleaning and drying”.
16 17
continued
2. Safety information
Operating risks, continued
CAUTION
Take care to avoid incorrect
measurements caused by using a
defective product or a product which
has been dropped or subjected to any
other inadmissible stresses or
changes.
Preventative measures
Carry out measurements periodically to check
the accuracy of the product, particularly after it
has been exposed to excessive stresses and
before and after important measuring tasks.
WARNING
Failure to adequately cordon off the
area in which you are measuring may
lead to dangerous situations in road
traffic, on building sites or in industrial
plants, etc.
Preventative measures
Always ensure that the area in which you are
carrying out measuring work is properly
cordoned off. Observe the statutory accident
prevention regulations and road traffic
regulations of the applicable country.
CAUTION
Taking measurements from surfaces
with low reflectance surrounded by
areas with high reflectance may lead
to measurement errors.
Preventative measures
Take measurements from the brown side of the
Hilti target plate at distances above 40 m.
CAUTION
Rapidly changing conditions such as
large changes in distance while in
tracking mode or rapidly moving
target objects may lead to
measurement errors.
continued
2. Safety information
Operating risks, continued
Preventative measures
– Take individual measurements
– Set up the tool in a fixed position (tripod)
CAUTION
Objects moving through the path of
the laser beam while measuring may
lead to incorrect measurements.
Preventative measures
Take care to ensure that no objects move
through the path of the laser beam.
CAUTION
Inadmissible mechanical influences
during the shipping or disposal of
charged batteries may lead to a risk of
fire.
Preventative measures
Remove the batteries from the tool before
shipping and dispose of them only when fully
discharged (operate the tool in tracking mode
until the batteries are discharged).
CAUTION
Opening the product without
authorisation will not only invalidate
the warranty, it may also cause
malfunctions and measuring errors.
Preventative measures
Do not open the product! Only the battery
compartment cover should be opened when
replacing the batteries.
2. Safety information
Operating risks, continued
CAUTION
If the equipment is not used for
lengthy periods, there is a risk of it
being damaged by leaking batteries.
Preventative measures
Remove the batteries if you do not intend to use
the equipment for some time.
CAUTION
At regular intervals or before
measuring, check that the folding
spike functions correctly.
The symbol illustrated is shown in the
display.
18 19
continued
continued
2. Safety information
Disposal
WARNING
Improper disposal of the equipment
may lead to the following:
• Burning of plastic components generates
toxic fumes which may present a health
hazard.
• If damaged or exposed to very high
temperatures, batteries may explode, causing
poisoning, burns, acid burns or environmental
pollution.
• Careless disposal enables unauthorised
persons to make improper use of the
equipment, which may lead to serious injury
to themselves or a third party and to pollution
of the environment.
Preventative measures
Most of the materials from which Hilti tools 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 for
recycling. Please ask your Hilti customer service
department or Hilti representative for further
information.
Part, assembly Main material Recycling
Casing Plastic Plastics
recycling
Control Plastic Plastics
panel recycling
Measuring Various Electronics
module scrap
or scrap
metal
Electronics Various Electronics
scrap
Screws, small Steel Scrap metal
parts
Carrying case Plastic Plastics
recycling
2. Safety information
Laser classification
The Hilti PD 20 generates a visible laser beam
which is emitted from the front side of the tool.
The product conforms to laser class 2 as per:
• IEC825-1
1993 “Safety of laser equipment”
• EN60825-1
1994 “Safety of laser equipment”
The product conforms to laser class II as per:
• FDA 21CFR Ch.I§1040
1988 (U.S. Department of Health and Human
Service, Code of Federal Regulations)
Laser class 2 /II products
Do not look into the laser beam and never aim it
at other persons.
Protection of the eyes is normally ensured by
defensive reactions including the eyelid closure
reflex.
WARNING
Looking directly into the beam with
optical aids (e.g. binoculars or
telescopes) can be dangerous.
Preventative measures
Never look into the beam using optical aids.
20 21
continued
Laser classification, continued
Laser exit aperture
2. Safety information
2. Safety information
Information plate, continued
Applicable standard:
Beam divergence:
Pulse duration:
Max. power output:
IEC825-1: 1993 FDA 21CFR
EN60825-1: 1994 Ch. l § 1040: 1988
0,16 x 0,6 mrad 0,16 x 0,6 mrad
1 x 10-9 s 1 x 10-9 s
0,95 mW ± 5% 0,95 mW ± 5%
Caution
The product should be repaired at a
Hilti-approved service centre only.
Information plate
All product identification data and warnings
concerning the use of the product can be found
on the rear of the Hilti PD 20.
22 23
continued
2. Safety information
Electromagnetic compatibility (EMC)
Electromagnetic compatibility refers to the ability
of the Hilti PD 20 to function correctly in an
environment where it is exposed to
electromagnetic radiation and electrostatic
discharge, without causing electromagnetic
interference to other devices.
WARNING
There may be a possibility of
interference with other equipment due
to electromagnetic radiation.
Although the Hilti PD 20 complies with the strict
requirements of the relevant directives and
standards, Hilti cannot entirely rule out the
possibility of interference with other equipment.
3. Operation
3. Operation
Inserting the batteries
Symbol displayed
Low battery voltage ➔
Insert new batteries
2x type AA
(LR6 / AM3/ round cell R6)
2
CAUTION
Measurements may exceed
tolerances in the event of interference
caused by electromagnetic radiation.
Although the Hilti PD 20 complies with the strict
requirements of the relevant directives and
standards, Hilti cannot entirely rule out the
possibility of the Hilti PD 20 being subject to
interference caused by very intense
electromagnetic radiation, e.g. in the immediate
vicinity of radio transmitters, radio
communication equipment, diesel generators,
etc.
Check the readings for plausibility when
measuring under these conditions.
24 25
2x
3
1
Always replace the complete set of
batteries
- Do not mix old and new batteries.
- Do not mix batteries of different
makes or types.
- Use only undamaged batteries of
an approved type.
When rechargeable batteries are
used, each pair of batteries must be:
- Of the same make and the same
type
- Of the same age and charged to
the same level
Menu selection and setting
Menu overview
rEF
CONSt Light
dELAY bEEP UNIT
Select / exit menu mode
3. Operation
Selecting and setting the menu, continued
CONST menu / constants
MENU
CONST
0.234
Press the button
to select menu mode.
Use the
buttons to select the
CONST menu.
3. Operation
,
Scroll through the menus
Adjust menu values up / down
rEF menu / reference point
MENU
rEF
Use the , buttons to select the desired
reference point:
Front edge of the tool
Tripod thread axis
Rear edge of the tool (standard
setting)
Press the button to exit menu mode.
Select menu mode by
pressing the
button.
Use the
buttons to select the
rEF menu.
26 27
,
continued
Use the
e.g. 0.234
The value entered can be recalled for use in
subsequent calculations (e.g. addition of a
constant to the measured value etc).
, buttons to enter the constant,
Light menu / display illumination
MENU
Light
OFF
Use the
illumination mode:
OFF illumination off (power saving)
ON illumination on constantly
AUTO illumination on for 10 seconds after
, buttons to select the desired
pressing a button
Press the
to select menu mode.
Use the
buttons to select the
light menu.
button
,
dELAY menu / self-timer
MENU
dELAY
0
Use the
delay time (0 / 2 / 5 /10 / 20).
After pressing the “measure” button, the
measurement will be taken automatically when
the set time has elapsed (e.g. for taking
measurements from points where access is
difficult).
, buttons to select the desired
Press the
to select menu mode.
Use the
buttons to select the
dELAY menu.
button
,
continued
Selecting and setting the menu, continued
bEEP menu / beep sound
MENU
bEEP
OFF
Use the
beep mode:
ON A beep is emitted when :
OFF No beep sound
Auto A beep is emitted when:
, buttons to select the desired
- A button is pressed
- A measurement is taken
- An error occurs
- A measurement is taken
- An error occurs
Press the button
to select menu mode.
Use the
buttons to select the
bEEP menu.
Unit menu / measurement units
MENU
UNIT
in
Press the
to select menu mode.
Use the
buttons to select the
UNIT menu.
3. Operation
,
button
,
4. Working with the PD 20
4. Working with the PD 20
Measuring distances
Switch on the tool.
The following is displayed:
LASER
- - - - -
Position the rear edge of the tool at
the desired starting point and aim it at
the target from which the
measurement is to be taken.
Press the “measure” button.
The measured value is then
displayed.
The laser beam is
switched on.
After switching on the
tool, the reference
point is always set to
the rear edge of the
tool (symbol).
Use the
measuring unit:
m Value displayed in m
in Value displayed in feet, inches and
, buttons to select the desired
fractions
28 29
continued
4. Working with the PD 20
Measuring distances, continued
Measuring using the spike
The spike should be folded out when measuring
the diagonals of a room or when taking
measurements from corners where access is
difficult.
4. Working with the PD 20
Measuring distances, continued
Continuous measurement (tracking)
Switch on the tool.
Press the “measure” button once
(long press to activate tracking
mode).
The following is displayed:
17.863 m
The extended reference point is taken into
account and the tool automatically corrects the
measured distance by the corresponding value.
The measuring procedure is carried out as
described previously.
Move the tool and
read each new
distance, as it is
1.010m
Tracking mode can be cancelled by
pressing any button.
measured, at each
new position.
30 31
4. Working with the PD 20
Measuring distances, continued
Measuring using the self-timer
e.g. for measuring from inaccessible positions
4. Working with the PD 20
Measuring distances, continued
Measuring with the aid of a target object
A board, bricks or other suitable objects can be
used as the target when taking a measurement
from an outside edge (e.g. outside walls of
houses, perimeter fences etc).
The use of an extension rod can be of great
assistance for measuring with the PD 20 from
points where access is difficult or even
impossible to reach without some form of aid.
One of the two threaded bushings (1/4" tripod
thread) on the PD 20 can be used for attaching
an extension rod.
When an extension rod is used, the delay
between pressing the “measure” button and the
moment at which the measurement is taken can
be set with the assistance of the self-timer
(delay) function. Use the dELAY menu to set the
delay.
32 33
4. Working with the PD 20
Measuring distances, continued
Taking measurements from various surfaces
Plants and trees
As a rule, it is not possible to take
measurements from plants and trees, even over
very short distances. Matt green surfaces
decrease the range of the PD 20.
Rough surfaces
On rough surfaces, (e.g. rough plaster), the
measurement obtained is a weighted average,
whereby the centre of the laser beam receives a
higher weighting than the surrounding area.
A message is displayed if the differences are
excessive.
4. Working with the PD 20
Using the calculation functions
Adding / subtracting (distances)
Individual distances can be easily added or
subtracted.
The following example shows how to obtain a
total height by adding together two part heights
measured from the same line on a wall.
1.155m
2.260m
1.105m
Press the “measure” button. The laser
beam is switched on. For the first part
height, position the PD 20, pointing
upwards, with its rear edge on the line
marked on the wall.
Press the “measure” button again.
The first part height is measured and
displayed (the laser beam then
switches off).
Press the “plus” button.
Press the “measure” button.
For the second part height, position the
PD 20, pointing downwards, with its rear
edge on the line marked on the wall.
Press the “measure” button again.
The second part height is measured
and displayed (the laser beam then
switches off).
Press the “equals” button.
Read the sum of the part heights from
the display.
34 35
4. Working with the PD 20
Using the calculation functions, continued
Multiplication (areas / volumes)
Example
Calculating the floor area of a room
Measure the width of the room.
3.5m
4. Working with the PD 20
Using the calculation functions, continued
Example
Calculating the volume of a room
After calculating the floor area of the room,
proceed as follows:
Press the
“multiplication”
button.
Measure the
29.313 m
x
height of the
room.
2
Press the
“multiplication”
button.
Measure the
length of the
3.500 m
x
8.375 m
room.
8.375 m
Press the “equals” button.
Read the floor area from the display.
36 37
2.285 m
Press the “equals” button.
Read the volume from the display.
A chain of calculations can also be made
without pressing the “equals” button.
For example:
distance x distance x distance
or
distance x distance + distance x distance = m
2
4. Working with the PD 20
Using the calculation functions, continued
Calculating with Pythagoras
The Pythagoras function button can be used, for
example, for quickly measuring remote heights etc.
Pressing the Pythagoras button activates
the
1. Measure the hypotenuse
calculation formula.
To ensure correct use of this method,
the adjacent side of the triangle
measured must be perpendicular to the
opposite side that is to be calculated (i.e.
perpendicular to height h). Failure to
ensure that measurements are
perpendicular will cause errors and the
results obtained may not be within the
specified accuracy of the PD 20.
4. Working with the PD 20
Measuring distances, continued
Calculating with Pythagoras, continued
2. Measure the adjacent side
Measure side “a” (the adjacent side of
the triangle).
The following is displayed:
4.995 m
- - - - -
Measure side “s” (the hypotenuse),
e.g. 10.049 m
Press the Pythagoras button.
The following is displayed:
10.049 m
- - - - -
38 39
continued
3. Calculate the opposite side
Calculate the height “h” (the opposite
side of the triangle) by pressing the
“equals” button.
The following is displayed:
8.720 m
4. Working with the PD 20
Measuring distances, continued
Calculating using a constant value
Press the “menu”
button.
Select the CONst
menu.
Enter the constant
value.
Note
Pressing the “X” and “+” or “X” and “-” buttons
simultaneously increases or, respectively,
decreases the indicated value in increments of
0.100.
When making calculations, use the
buttons to recall the previously entered constant
value (as the fourth or, respectively, the last
step) and press the appropriate button to make
the desired calculation.
,
5. Care, transportation and storage
5. Care, transportation and storage
Cleaning and drying
• Blow dust off the lenses.
• Don’t touch the glass with your fingers.
• Use only clean, soft cloths for cleaning. If
necessary, moisten the cloth slightly with
pure alcohol.
Don’t use any other liquids as these
may damage the plastic components.
Observe the temperature limits when
storing your equipment. This is
particularly important in summer if the
equipment is kept inside a motor
vehicle (-30°C to +70°C / -22°F
to +158°F).
Storage
Remove the tool from its case if it has
become wet. The tool, its carrying
case, foam insert and accessories
should be cleaned and dried (at a
maximum temperature of 40°C /
108°F). Put the equipment back into
its case only when it is completely dry.
Check the accuracy of the equipment
before it is used after a long period of
storage or transportation.
Transportation
Your equipment should be shipped in the Hilti
shipping carton or packaging of similar quality.
Always remove the batteries before
shipping.
40 41
6. Symbols displayed
Temperature too high (>+50°C), in
tracking mode (>+45°C)
Solution
Allow the tool to cool.
Temperature too low (>-10°C)
Solution
Warm the tool.
Unfavourable reception conditions
Solution
- Observe max. measuring distance
(>300 mm)
- Clean the lens
- Aim the beam at a different surface
(target plate)
Excessive back light at the target
point
Solution
Shade the target point from
background light.
General hardware fault
Solution
Contact a service centre.
Batteries almost discharged
Solution
Insert new batteries.
42 43
6. Symbols displayed
7. Measuring equipment inspection
7. Measuring equipment inspection
Measuring equipment inspection of the PD
20 for users certified according to ISO 900...
You may carry out the measuring equipment
inspection required by ISO 900... on the PD 20
linear measuring device yourself.
To do this, select a measuring distance which
remains constant over a period of time and
which is easily accessible. It should have a
known length of approx. 1 to 5 m (e.g. a window
opening or the width of a room) and 10
measurements should be made.
Determine the deviation of the readings from the
nominal measuring distance and calculate the
standard deviation on this basis.
Make a note of this value and the date or time
for the next inspection.
Repeat these verification measurements at
regular intervals as well as before and after
important measuring tasks.
Apply a measuring equipment inspection sticker
to the PD 20 and document the entire inspection
procedure.
Your PD 20 conforms to the specified accuracy
if the standard deviation remains less than or
equal to 5mm.
A PD 20 which has been tested / inspected over
the test distance will operate with the accuracy
specified in the operating instructions over the
entire specified length and temperature range.
Please refer to the technical data contained in
the operating instructions and to the explanation
of the accuracy values.
Recommendation
Test the tool, or have it tested, once a year.
Contact your Hilti representative for further
information. The tool can also be tested at one
of our repair / service centres.
8. Accessories
8. Accessories
9. FCC statement (applicable in US)
9. FCC statement (applicable in US)
Batteries
2 type AA 1.5V alkaline batteries
Replacement batteries can be purchased
locally.
Target plates
With two different target surfaces
- white, for distances up to 30 m
- brown, for distances between 30 and 100 m
Laser sighting glasses
The sighting glasses improve the visibility of the
laser target spot (by the factor 4-5).
WARNING
This equipment has been tested and
found to comply with the limits for a
class B digital device, pursuant to part
15 of the FCC rules.
These limits are designed to provide
reasonable protection against harmful
interference in a resi- dential
installation. This equipment
generates, uses and can radiate radio
frequency energy and, if not installed
and used in accordance with the
instructions, 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 off and on,
the user is encouraged to try to
correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving
antenna.
• Increase the separation between
the equip- ment and receiver.
• Connect the equipment into an
outlet on a circuit different from that
to which the receiver is connected.
• Consult the dealer or an
experienced radio/TV technician for
help.
44 45
10. EC declaration of conformity
10. EC declaration of conformity
11. Warranty
11. Warranty
Designation: PD 20
Serial number: 00000001-50000000
Year of design: 1999
conform
We declare, on our sole responsibility, that this
product complies with the following standards or
standardisation documents:
89/336/EWG
Hilti Corporation
Armin Spiegel
Leiter Positioning
Systems
Head of Business Unit
Positioning Systems 06/1999
Bodo Baur
Leiter Qualität
Positioning Systems
Quality Manager of
Business Unit
Hilti warrants the supplied device to be free from
defective materials and workmanship. This
warranty is only valid on condition that the
device is operated, handled, cleaned and cared
for correctly according to the operating
instructions provided by Hilti, that all warranty
claims are asserted within 12 months of the date
of sale (date of invoice) and that technical
integrity is guaranteed, i.e. that only original Hilti
expendable items, accessories and spare parts
are used with the device.
This warranty covers free repairs or
replacement of defective parts. It does not apply
to parts which are subject to normal wear and
tear.
All further claims are excluded failing the
existence of mandatory national regulations
to the contrary. In particular, Hilti accepts no
liability for direct or indirect deficiency
losses or consequential damage, losses or
costs incurred in connection with the use of,
or due to the impossibility of using the
device for any purpose. Implicit warranties
of the applicability or suitability of the device
for a particular purpose are expressly
excluded.
For purposes of repair or replacement, the
device and/or affected parts must be sent to the
responsible Hilti marketing organisation
immediately on discovery of the defect. The
present warranty covers all guarantee
commitments on the part of Hilti and replaces
any earlier or simultaneous declarations, written
or oral agreements with regard to warranties.
46 47
Hilti = Registered trademark of Hilti Corp., Schaan
Right of technical and programme changes reserved
W2363 1199 10 englisch 9
Printed in Liechtenstein ©1999 S.E.&O.
334057
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