Leica DISTO D3
TM
The original laser distance meter
TM
Leica DISTO™ D3
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MENU
TIMER
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max
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UNIT RESET
TRIPOD
BEEP ONOFF
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User Manual
Safety Instructions
English
GB
Symbols used
Congratulations on the purchase of your
Leica DISTO™ D3 .
The symbols used in the Safety Instructions have the
following meanings:
Carefully read the Safety Instructions and the User Manual before
using this product.
The person responsible for the instrument must
ensure that all users understand these directions and
adhere to them.
WARNING:
Indicates a potentially hazardous situation or
an unintended use which, if not avoided, will result in
death or serious injury.

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CAUTION:
Indicates a potentially hazardous situation or
an unintended use which, if not avoided, may result
in minor injury and/or in appreciable material, financial and environmental damage.
Contents
Safety Instructions ............................................. 1
Start-up ................................................................ 5
Menu functions ................................................... 7
Operation............................................................. 8
Measuring ............................................................ 9
Functions ........................................................... 10
Appendix ............................................................ 14
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Important paragraphs which must be adhered
to in practice as they enabled the product to be used
in a technically correct and efficient manner.
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Use of the instrument
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Permitted use
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Measuring distances
Computing functions, e. g. areas and volumes
Measuring tilts
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Leica DISTO™ D3 760150 gb
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Safety Instructions
Prohibited use
in explosion hazardous areas or in aggressive environments.
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Areas of responsibility
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Using the instrument without instruction
Using outside the stated limits
Deactivation of safety systems and removal of
explanatory and hazard labels
Opening of the equipment by using tools (screwdrivers, etc.), as far as not specifically permitted
for certain cases
Carrying out modification or conversion of the
product
Use after misappropriation
Use of accessories from other manufacturers
without the express approval of Leica Geosystems.
Deliberate or irresponsible behaviour on scaffolding, when using ladders, when measuring
near machines which are running, or near parts of
machines or installations which are unprotected
Aiming directly into the sun
Deliberate dazzling of third parties; also in the
dark
Inadequate safeguards at the surveying site (e.g.
when measuring on roads, construction sites,
etc.)
Responsibilities of the manufacturer of the original equipment Leica Geosystems AG, CH-9435
Heerbrugg (for short Leica Geosystems):
Leica Geosystems is responsible for supplying the
product, including the User Manual and original
accessories, in a completely safe condition. (additional language versions can be found at:
www.disto.com.
Responsibilities of the manufacturer of nonLeica accessories:
)
The manufacturers of non-Leica accessories
for the Leica DISTO™ are responsible for developing,
implementing and communicating safety concepts for
their products. They are also responsible for the
effectiviness of these safety concepts in combination
with the Leica Geosystems equipment.
Responsibilities of the person in charge of the
instrument:

WARNING
The person responsible for the instrument
must ensure that the equipment is used in accordance with the instructions. This person is also
accountable for the deployment of personnel and for
their training and for the safety of the equipment
when in use.
Limits of use
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See section “Technical Data“.
The Leica DISTO™ is designed for use in areas permanently habitable by humans, do not use the product
Safety Instructions
2
Leica DISTO™ D3 760150 gb
measurement, malfunction of the device or power
failure due to installed safety measures (e.g. safety
limit switch), it is assured that no damage will occur.
The person in charge of the instrument has the
following duties:
• To understand the safety instructions on the
product and the instructions in the User Manual.
• To be familiar with local safety regulations
relating to accident prevention.
• To inform Leica Geosystems immediately if the
equipment becomes unsafe.

WARNING:
Flat batteries must not be disposed of with
household waste. Care for the environment and take
them to the collection points provided in accordance
with national or local regulations.
The product must not be disposed of with
household waste.
Dispose of the product appropriately in
accordance with the national regulations in
force in your country.
Always prevent access to the product by
unauthorized personnel.
Product specific treatment and waste
management information can be downloaded from
the Leica Geosystems home page at
http://www.leica-geosystems.com/treatment or
received from your Leica Geosystems dealer.
Hazards in use

CAUTION:
Watch out for erroneous distance measurements if the instrument is defective or if it has been
dropped or has been misused or modified.
Precautions:
Carry out periodic test measurements. Particularly
after the instrument has been subject to abnormal
use, and before, during and after important measurements.
Make sure the Leica DISTO™ optics is kept clean and
that there is no mechanical damage to the bumpers.
Electromagnetic Compatibility
(EMC)
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CAUTION:
In using the instrument for distance measurements or for positioning moving objects (e.g. cranes,
building equipment, platforms, etc.) unforeseen
events may cause erroneous measurements.
The term "electromagnetic compatibility" is taken to
mean the capability of the product to function
smoothly in an environment where electromagnetic
radiation and electrostatic discharges are present,
and without causing electromagnetic interference to
other equipment.
Precautions:
Only use this product as a measuring sensor, not as
a control device. Your system must be configured and
operated in such a way, that in case of an erroneous
Leica DISTO™ D3 760150 gb
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Safety Instructions
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WARNING:
The Leica DISTO™ conforms to the most stringent requirements of the relevant standards and
regulations. Yet, the possibility of it causing interference in other devices cannot be totally excluded.
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WARNING:
Changes or modifications not expressly
approved by Leica Geosystems for compliance could
void the user’s authority to operate the equipment.
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CAUTION:
Never attempt to repair the product yourself. In
case of damage, contact the local dealership.
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FCC statement (applic. in U.S.)
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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
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Laser classification
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 residential 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 equipment
and receiver.
Integrated distancemeter
The Leica DISTO™ produces a visible laser beam
which emerges from the front of the instrument.
It is a Class 2 laser product in accordance with:
• IEC60825-1 : 2007 "Radiation safety of laser
products"
Laser Class 2 products:
Do not stare into the laser beam or direct it towards
other people unnecessarily. Eye protection is
normally afforded by aversion responses including
the blink reflex.
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WARNING:
Looking directly into the beam with optical aids
(e.g. binoculars, telescopes) can be hazardous.
Precautions:
Do not look directly into the beam with optical aids.
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Safety Instructions
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Leica DISTO™ D3 760150 gb
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CAUTION:
Looking into the laser beam may be hazardous
to the eyes.
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Start-up
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Inserting/replacing batteries
Precautions:
Do not look into the laser beam. Make sure the laser
is aimed above or below eye level. (particularly with
fixed installations, in machines, etc.)
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See figure {A}
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Labelling
Remove battery compartment lid and attach
handstrap.
Insert batteries, observing correct polarity.
Close the battery compartment again. Replace
the batteries when the symbol
flashes permanently in the display.
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Laser Radiation
Do not stare into the beam
Laser class 2
acc. IEC 60825-1:2007
Maximum radiant power:
<1mW
Emitted wavelength:
620-690nm
Beam divergence: 0.16 x 0.6 mrad
Pulse duration:
1 x 10 -9 s
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Use alkaline batteries only.
Remove the batteries before any long period
of non-use to avoid the danger of corrosion.
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Changing the reference point
(multifunctional endpiece)
See figure {B}
The instrument can be adapted for the following
measuring situations:
•
Position of the product label see last page!
Leica DISTO™ D3 760150 gb
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For measurements from an edge, fold out the
positioning bracket until it first locks in place. See
figure {C}.
For measurements from a corner, open the positioning bracket until it locks in place, then push
the positioning bracket lightly to the right to fold
it out fully. See figure {D}.
Start-up
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A built-in sensor automatically detects the orientation of the positioning bracket and adjusts the zero
point of the instrument accordingly.
Keypad
See figure {E}:
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ON / DIST (On/measuring) button
Plus (+) button
Minus (-) button
Area / volume button
Indirect measurement (Pythagoras) button
Reference button
Functions button
Timer button
Storage button
Menu/equal button
Clear/off button
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Display
See figure {F}
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Double (partial height) measurement
Illumination
Save constant value, call up constant value
Historical memory, call up values
Battery status
Timer
Area/volume
Tilt
Horizontal distance measurement using tilt
Room corner angle function
Menu
Continuous laser
Reset
Reference (tripod)
Beep
Circumference
Wall area
Ceiling area
Intermediate line 1
Intermediate line 2
Intermediate line 3
Summary line
Laser active
Reference (front)
Reference (rear)
Reference (corner stop)
Measuring with the tripod
Stake out function
Single Pythagorean measurement
Double Pythagorean measurement
Start-up
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Leica DISTO™ D3 760150 gb
Setting the unit for distance
measurements
Menu functions
Settings
The following units can be set:
The menu allows settings to be altered and permanently stored. After switching off the device or
replacing the batteries the settings are stored.
1.
2.
3.
4.
5.
6.
7.
Navigation in the menu
The menu allows settings to be made at the user
level. The instrument can be specifically configured to
your personal requirements.
Distance
0.000 m
0.0000 m
0.00 m
0.00 ft
0'00'' 1/32
0.0 in
0 1/32 in
Volume
0.000 m³
0.000 m³
0.000 m³
0.00 ft³
0.00 ft³
0.00 ft³
0.00 ft³
Setting the unit for tilt
measurements
button (pressed short) pages through each
menu item. See figure {G}.
The following units can be set for tilt measurements:
Units for tilt
1.
+/- 0.0°
2.
0.00%
button (pressed short) brings up the next menu
item.
A long press on the
button in the menu confirms
the new settings made in the submenu items .
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Beep ( BEEP )
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You can switch the beep on or off.
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Pressing the
button for longer in the menu
allows you to quit the settings function without
saving.
Leica DISTO™ D3 760150 gb
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button (pressed long) brings up the MENU , the
set units and the
symbol are displayed.
button to make changes in menu items.
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Area
0.000 m²
0.000 m²
0.000 m²
0.00 ft²
0.00 ft²
0.00 ft²
0.00 ft²
General description
or
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Menu functions
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Continuous laser (
A reset returns the following values to their factory
settings:
)
You can switch the continuous laser function on or
off.
With the continuous laser function set on, each press
of the
button triggers a measurement. The laser
automatically switches off after 15 minutes.
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Measuring with the tripod ( TRIPOD )
All customised settings and stored values are
also lost.
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The reference must be appropriately adjusted in
order to be able to take correct measurements with
a tripod. To do this select the TRIPOD symbol in this
menu item. You can switch the reference on the
tripod on or off. The setting can be seen on the
display
.
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Operation
Switching on and off
Switches on the instrument and laser. The
display shows the battery symbol until the
next button is pressed.
Pressing this button for longer switches the
instrument off.
The instrument switches off automatically
after six minutes of inactivity.
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Display - keypad illumination (
Reference (rear)
Display illumination (ON)
Beep (ON)
Unit (m(mm))
Stack and memory are erased
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Automatic illumination of the display and the keypad
can be switched on or off.
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Reset - returning the instrument to
the factory settings (
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The instrument has a RESET function. When you
select the menu function RESET and confirm, the
instrument defaults to the factory settings.
Operation
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Leica DISTO™ D3 760150 gb
CLEAR button
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Measuring
The last action is cancelled. While making area or
volume measurements, each single measurement can
be deleted and remeasured in series.
Single distance measurement
Press to activate the laser. Press again to trigger
the distance measurement.
Display / keypad illumination
The result is displayed immediately.
The instrument has a sensor that automatically
switches the display and keypad illumination on or off
in response to lighting conditions.
Minimum/maximum measurement
The default reference setting is from the rear of the
instrument.
It is commonly used to measure room diagonals
(maximum values) or horizontal distances (minimum
values).
Press this button to take the next measurement
from the front edge
. A special beep sounds whenever the reference setting is changed.
Press and hold down this button until you hear
a beep. Then slowly sweep the laser back and forth
and up and down over the desired target point - (e.g.
into the corner of a room).
After a measurement the reference returns automatically to the default setting (rear reference). See
figure {H}.
Press this button for longer the front reference
is set permanently.
Press to stop continuous measurement. The
values for maximum and minimum distances are
shown in the display as well as the last measured
value in the summary line.
Press this button, the rear reference is set again.
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This function allows the user to measure the
minimum or maximum distance from a fixed
measuring point. It can also be used as to determine
spacings. See figure {I}
Reference setting
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Leica DISTO™ D3 760150 gb
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Measuring
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Volume
Functions
Distance measuring.
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one.
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The next measurement is subtracted from the
previous one.
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Press this button to take the second length
measurement (e.g. width).
Press this button to take the third length measurement (e.g. height). The value is shown in the second line.
This process can be repeated as required. The result
is always shown in the summary line with the
previous value in the second line.
The volume then appears in the summary line.
Press the
button for longer to display additional
room information such as ceiling/floor area, surface
area of the walls, circumference.
The last step is cancelled.
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symbol
Press this button to take the first length
measurement (e.g. length).
The next measurement is added to the previous
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Press this button twice. The
appears in the display.
Addition / subtraction
Area
Press once. The
display.
Tilt measurement
symbol appears in the
)
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During tilt measurement the instrument
should be hold without a transverse tilt (± 10°).
Press it again to take the second length
measurement (e.g. width).
Press this button once to activate the tilt
sensor. The
symbol appears in the display. The
tilt is continuously shown as ° or % depending on the
setting.
The result is displayed in the summary line.
Press the
button for longer to calculate the
circumference.
Functions
The inclination sensor measures tilts between
± 45°.
Press this button to take the first length
measurement (e.g. length).
Press to measure the inclination and the
distance. See figure {J}.
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Leica DISTO™ D3 760150 gb
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Direct horizontal distance
Stake out function
Press this button twice and the following
symbol appears in the display
.
Two different distances (a and b) can be entered into
the instrument and can then be used to mark off
defined measured lengths, e.g. in the construction of
wooden frames.
Press this button to measure tilt and distance.
The summary line displays the result as the direct
horizontal distance.
See figure {L}.
b
The value (a) and the corresponding intermediate line
flash.
Press this button three times and the room
corner symbol appears in the display
.
Mark the reference points to the right and left (d1/
d2) of the angle to be measured.
Press this button to measure the first (short)
side of the triangle (d1 or d2).
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Press this button four times and the stake out
a
function symbol appears in the display b .
The angles in a triangle can be calculated by measuring
the three sides. This function can be used e. g. to
check a right-angled room corner. See figure {K}.
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Entering stake out distances:
Room corner angle function
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By using
and
, you can adjust the values
(first a and then b) to suit the desired stake out
distances. Holding the buttons down increases the
rate of change of the values.
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Once the desired value (a) has been reached it can be
confirmed with the
button.
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Press this button to measure the third (long)
side of the triangle (d3).
The value (b) and the intermediate line flashes (the
defined value (a) is automatically adopted). Value (b)
can be entered using
and
.
The defined value (b) is confirmed with the
button.
The result is displayed in the summary line as the
room corner angle.
Pressing the
button starts the laser measurement. The display shows required stake out distance
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Press this button to measure the second (short)
side of the triangle (d1 or d2).
Leica DISTO™ D3 760150 gb
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Functions
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in the summary line between the stake out point
(first a and then b) and the instrument (rear reference).
If the DISTO™ is then moved slowly along the stake
out line the displayed distance decreases. The instrument starts to beep at a distance of 0.1m from the
next stake out point.
a
b
The arrows in the display b indicate in which direction the DISTO™ needs to be moved in order to
achieve the defined distance (either a or b). As soon
as the stake out point is reached the beep changes
and the intermediate line starts to flash.
The function can be stopped at any time by pressing
the
button.
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Indirect measurement
The instrument can calculate distances using Pythagoras’ theorem.
)
Make sure you adhere to the prescribed
sequence of measurement:
•
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Indirect measurement - determining a distance using 2 auxilliary measurements
See figure {M}
Press this button once, the display shows
The laser is switched on.
.
Aim at the upper point (1) and trigger the
measurement. After the first measurement the value
is adopted. Keep the instrument as horizontal as
possible.
All target points must be in a horizontal or vertical
plane.
The best results are achieved when the instrument is rotated about a fixed point (e.g. with the
positioning bracket fully folded out and the
instrument placed on a wall).
Functions
)
Make sure that the first measurement and the
distance to be measured are at right angles. Use the
Minimum/maximum function, as explained in
"Measuring -> Minimum/maximum measurement".
e.g. for measuring building heights or widths. It is
helpful to use a tripod when measuring heights that
require the measurement of two or three measurements.
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The minimum/maximum function can be used see explanation in "Measuring -> Minimum/
maximum measurement". The minimum value
must be used for measurements at right angles to
the target; the maximum distance for all other
measurements.
Press and hold down this button to trigger
continuous measurement, sweep the laser back and
forth and up and down over the ideal target point.
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Leica DISTO™ D3 760150 gb
point 2 using three target points.
Press to stop continuous measurement (2). The
result is displayed in the summary line, the partial
results in the secondary line.
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Press this button three times ; the display
shows the following symbol
. The laser is
switched on.
Indirect Measurement - determining a distance using 3 measurements
Aim at the upper point (1).
Press this button twice; the display shows the
following symbol
. The laser is switched on.
Triggers the measurement. After the second
measurement the value is adopted. The display
flashes (3).
Aim at the upper point (1) and trigger the
measurement. After the first measurement the value
is adopted. Keep the instrument as horizontal as
possible
Press and hold down this button to trigger
continuous measurement. Sweep the laser up and
down over the ideal target point.
Press and hold down this button to trigger
continuous measurement, sweep the laser up and
down over the ideal target point.
Press this button to end continuous measurement. The result is displayed in the summary line, the
partial results in the secondary lines.
Press to stop continuous measurement (2). The
value is adopted. Aim at the lower point and
press this button to trigger the measurement
(3). The result is displayed in the summary line, the
partial results in the secondary lines.
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Indirect measurement - determining a chain
value using 3 measurements
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See figure {O}
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e.g. determining the height between point 1 and
Leica DISTO™ D3 760150 gb
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Press this button and trigger the measurement.
After the first measurement the value is adopted. The
display flashes (2).
See figure {N}
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Functions
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Storage of constants/historical
storage
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Storage of a constant
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You can store and recall a frequently used value e.g.
height of a room. Measure the desired distance,
press and hold the
button until the device beeps
to confirm storage.
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Recalling the constant
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Press this button once to recall the constant
and make it available for further calculations by
pressing button
.
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Timer (self-triggering)
Press this button to set a 5-second time delay.
or
Press and hold down this button until the
desired time delay is reached (max. 60 seconds).
Once the key is released the remaining seconds until
measurement (e.g. 59, 58, 57...) are displayed in a
countdown. The last 5 seconds are counted down
with a beep. After the last beep the measurement is
taken and the value is displayed.
)
Historical storage
Appendix
Press this button twice and the previous 20
results (measurements or calculated results) are
shown in reverse order.
The
and
Message codes
All message codes are displayed with either
"Error". The following errors can be corrected:
buttons can be used for navigation.
Press this button to use a result from the
summary line for further calculations.
156
Pressing the
and
buttons at the same time
erases all the values in historical storage.
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Appendix
The timer can be used for all measurements.
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Cause
Transverse tilt
greater than 10°
Main tilt direction,
angle too high
(> 45°)
Calculation error
or
Remedy
Hold the instrument
without any transverse
tilt
Measure angle up to
max. ± 45°
Repeat procedure
Leica DISTO™ D3 760150 gb
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Cause
Temperature too
high
Temperature too
low
Receiver signal too
weak, measurement
time too long,
distance > 100 m
Received signal too
strong
Wrong measurement, background
brightness too high
Laser beam interrupted
Error
Cause
Error Hardware error
Leica DISTO™ D3 760150 gb
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Technical data
Remedy
Cool down instrument
Distance
measurements:
Measuring accuracy
up to 10 m
(2 σ, standard deviation)
Power Range
Technology™:
Range (use target plate
from about 80m)
Smallest unit displayed
Distance measurement
Minimum/maximum
measurement, Continuous
measurement
Area/volume calculation of
room data
Addition / subtraction
Indirect measurement
using Pythagoras
Tilt measurements:
Tilt sensor:
Accuracy
(2 σ, standard deviation)
- to laser beam
- to the housing
Indirect measurement
using tilt sensor (direct
horizontal distance)
Angle measurement using
tilt sensor(± 45°)
Warm up instrument
Use target plate
Target too reflective
(use target plate)
Darken target (measure
in different lighting
conditions)
Repeat measurement
Remedy
Switch on/off the
device several times. If
the symbol still
appears, then your
instrument is defective.
Please call your dealer
for assistance.
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typically: ± 1.0 mm*
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0.05 m to 100 m
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0.1 mm
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± 0.3°
± 0.3°
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Appendix
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General:
Laser class
Laser type
Ø laser point
(at distances)
Autom. laser switch-off
Autom. instrument switchoff
Display illumination
Keypad illumination
Multifunctional endpiece
Timer (self-triggering)
Save constant value
Historical storage
(20 values)
Tripod thread
Battery life,
Type AAA, 2 x 1.5V
Protection against
splashes and dust
Dimensions
Weight (with batteries)
Temperature range:
Storage
H
Operation
D
GB
F
I
E
P
NL
DK
S
N
FIN
J
CN
ROK
RUS
CZ
Measuring conditions
II
635 nm, < 1 mW
6 / 30 / 60 mm
(10 / 50 / 100 m)
after 3 min
Measuring range
The range is limited to 100 m.
At night or dusk and if the target is in shadow the
measuring range without target plate is increased.
Use a target plate to increase the measurement
range during daylight or if the target has poor reflection properties.
after 6 min
9
9
9
9
9
Target surfaces
Measuring errors can occur when measuring toward
colourless liquids (e.g. water) or dust free glass,
Styrofoam or similar semi-permeable surfaces.
9
9
up to
5 000 measurements
IP 54, dust-proof,
splash-proof
125 x 45 x 25 mm
110 g
Aiming at high gloss surfaces may deflect the laser
beam and lead to measurement errors.
Against non-reflective and dark surfaces the
measuring time may increase.
-25°C up to +70°C
(13°F up to +158°F)
-10°C up to +50°C
(14°F up to +122°F)
* maximum deviation occurs under unfavourable conditions such
as bright sunlight or when measuring to poorly reflecting or very
rough surfaces. Measuring accuracy between 10 m and 30 m may
deteriorate to approx. ± 0.025 mm/m, for distances above 30 m
to ± 0.1 mm/m.
Appendix
16
Leica DISTO™ D3 760150 gb
D
Care
Do not immerse the instrument in water. Wipe off dirt
with a damp, soft cloth. Do not use aggressive
cleaning agents or solutions. Handle the instrument
as you would a telescope or camera.
GB
F
I
E
Warranty
P
The Leica DISTO™ D3 comes with a three* year
warranty from Leica Geosystems AG.
NL
More detailed information can be found at:
www.disto.com
DK
S
N
All illustrations, descriptions and technical specifications may be subject to change without prior notice.
FIN
J
* To receive the three year warranty, the product must be registered on our website www.disto.com within eight weeks of the
purchase date. If the product is not registered, a two year
warranty applies.
CN
ROK
PL
H
RUS
CZ
Leica DISTO™ D3 760150 gb
17
Appendix
D
GB
F
I
E
P
NL
DK
S
N
FIN
J
CN
ROK
PL
H
RUS
CZ
Appendix
18
Leica DISTO™ D3 760150 gb
1
7
2
EXIT
6
3
1
2
5
4
max.
3
Leica DISTO™ D3
Leica Geosystems AG, Heerbrugg, Switzerland has been certified as being equipped
with a quality system which meets the International Standards of Quality
Management and Quality Systems (ISO standard 9001) and Environmental
Management Systems (ISO standard 14001).
Total Quality Management - Our commitment to total customer satisfaction. Ask
your local Leica Geosystems agent for more information about our TQM program.
Printed in Switzerland - Copyright Leica Geosystems AG, Heerbrugg,
Switzerland 2007
Translation of original text (760150)
Pat. No.: WO 9427164, WO 9818019, WO 0244754, WO 0216964,
US 5949531, EP 1195617, US 7030969, WO 03104748
Leica Geosystems AG
CH-9435 Heerbrugg
(Switzerland)
www.disto.com