Leica DISTO D3a User Manual

Leica DISTOTM D3a

The original laser distance meter

User Manual

English

Congratulations on the purchase of your
Leica DISTO™ D3a .

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.

Contents

Safety Instructions ............................................. 1

Start-up................................................................6

Menu functions...................................................9

Operation........................................................... 11

Measuring .......................................................... 12

Functions ...........................................................14

Appendix............................................................ 20

Safety Instructions

Symbols used

The symbols used in the Safety Instructions have the
following meanings:

WARNING:



Indicates a potentially hazardous situation or
an unintended use which, if not avoided, will result in
death or serious injury.

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.

Important paragraphs which must be adhered

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to in practice as they enabled the product to be used
in a technically correct and efficient manner.

Use of the instrument

Permitted use

• Measuring distances

• Computing functions, e. g. areas and volumes

•Measuring tilts

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Safety Instructions

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Prohibited use

• Using the instrument without instruction

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• Using outside the stated limits

• Deactivation of safety systems and removal of

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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.)

Limits of use

)

The Leica DISTO™ is designed for use in areas perma­nently habitable by humans, do not use the product
in explosion hazardous areas or in aggressive envi­ronments.

Safety Instructions

See section “Technical Data“.

Areas of responsibility

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
non-Leica 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.

The person in charge of the instrument has the
following duties:

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Leica DISTO™ D3a 776175a gb

• 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.

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.

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.

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
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.

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.

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.

Product specific treatment and waste

Electromagnetic Compatibility
(EMC)

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.

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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.

CAUTION:



Never attempt to repair the product yourself. In
case of damage, contact the local dealership.

FCC statement (applic. in U.S.)

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.

• 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

WARNING:



Changes or modifications not expressly
approved by Leica Geosystems for compliance could
void the user’s authority to operate the equipment.

Laser classification

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"

Safety Instructions

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Laser Class 2 products:

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

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.

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.

CAUTION:



Looking into the laser beam may be hazardous

to the eyes.

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.)

Labelling

Position of the product label:

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Safety Instructions

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Start-up

Inserting/replacing batteries

1 Remove battery compartment lid and attach

handstrap.
2 Insert batteries, observing correct polarity.
3 Close the battery compartment again. Replace

the batteries when the symbol flashes perma-

nently in the display.

Only use alkaline or rechargeable batteries.

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Remove the batteries before any long period

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of non-use to avoid the danger of corrosion.

Changing the reference point
(multifunctional endpiece)

The instrument can be adapted for the following
measuring situations:

• For measurements from an edge, fold out the
positioning bracket until it first locks in place.

• 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.

A built-in sensor automatically detects the orienta­tion of the positioning bracket and adjusts the zero
point of the instrument accordingly.

Start-up

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Leica DISTO™ D3a 776175a gb

Keypad

1
2

3

10

5

9
7

12

1ON / DIST (On/measuring) - button
2 Horizontal distance - button
3 Plus (+) - button
4 Minus (-) - button
5Area / volume - button
6 Indirect measurement (Pythagoras) - button
7 Reference - button
8 Functions - button
9Timer - button
10 Storage - button
11 Menu/equal - button
12 Clear/off - button

Leica DISTO™ D3a 776175a gb

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6

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Start-up