Leica DD120 User manual

Leica DD120, DD130, DD175
Series
Locators & Accessories
User Manual
Version 3.0
English

Introduction
Congratulations on the purchase of a Leica Detection product.
This manual contains important safety directions as well as instructions for
setting up the product and operating it. Refer to 1 Safety Directions for fur-
ther information.
Read carefully through the User Manual before you switch on the product.
The content of this document is subject to change without prior notice. Ensure
that the product is used in accordance with the latest version of this docu-
ment.
Updated versions are available for download at the following Internet address:
https://myworld.leica-geosystems.com > myDownloads
The model and serial number of your product are indicated on the type label.
Always refer to this information when contacting your agency or Leica Geo-
systems authorised service centre.
This manual applies to the Leica Detection DD120, DD130, DD175 Series Loc-
ators, DA Series Transmitters and Detection Accessories. Differences between
the models are marked and described.
Name Description/Format
Leica DD120, DD130,
DD175 Series Locators
& Accessories Quick
Guide
Provides an overview of the product
together with technical data and safety
directions. Intended as a quick refer-
ence eld guide.
ü ü
Leica DD120, DD130,
DD175 Series Locators
& Accessories User
Manual
All instructions required in order to
operate the product to a basic level are
contained in the User Manual. Provides
an overview of the product together
with technical data and safety direc-
tions.
ü
Refer to the following resources for all Leica DD120, DD130, DD175
documentation/software:
•The Leica USB documentation card
•https://myworld.leica-geosystems.com
https://myworld.leica-geosystems.com offers a wide range of services, inform-
ation and training material.
With direct access to myWorld, you are able to access all relevant services
whenever it is convenient for you.
The availability of services depends on the instrument model.
Purchase
☞
Product identication
Validity of this
manual
Available
documentation
2

Service Description
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ticates and service reports.
mySupport Create new support requests for your products that
will be answered by your local Leica Geosystems
Support Team. View the complete history of your
support requests and view detailed information on
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3

Table of Contents
1 Safety Directions 6
1.1 General 6
1.2 Denition of Use 7
1.3 Limits of Use 7
1.4 Responsibilities 8
1.5 Hazards of Use 8
1.5.1 General 8
1.5.2 Using the Product with a Signal Transmitter 12
1.6 Electromagnetic Compatibility (EMC) 13
2 Description of the System 15
2.1 System Information 15
2.2 System Components 15
2.3 Locator Components 16
2.4 Signal Transmitter Components 16
3 Operation of the Locator 17
3.1 Display Panel Overview 17
3.2 Locator Setup and Information 17
3.3 Hazard Zone 20
3.4 How to Locate a Utility 21
3.5 Search Modes 21
3.6 Wireless Data Communication, where applicable 22
3.7 Memory & Communication 24
3.8 Internal GPS 24
4 Operation of the Transmitter 26
4.1 Keyboard 26
4.2 Turning On / Turning Off 26
5 Applications 27
5.1 How to Pinpoint a Utility 27
5.2 How to Trace a Utility 28
5.3 How to Conduct a Sweep Search 28
5.4 Using the Transmitter in Induction Mode 30
5.4.1 General Information 30
5.4.2 Induction Mode: Nulling-Out Method 31
5.4.3 Induction Mode: Parallel-Sweep Method 32
5.4.4 Induction Mode: Radial-Sweep Method 33
5.5 Using the Transmitter in Connection Mode 34
5.5.1 General Information 34
5.5.2 Direct Connection Mode 35
5.6 How to Use the Trace Rod 37
5.6.1 General Information 37
5.6.2 Locating a Utility Using the Trace Rod 37
5.7 How to Use the Transmitter Clamps 40
5.7.1 General Information 40
5.7.2 Using a Transmitter Clamp to connect to Cable Utilities 40
5.8 How to Use the Property Plug Connector 41
5.8.1 General Information 41
5.8.2 Locating a Utility Using the Property Plug Connector 42
5.9 How to Use the Sondes 43
5.9.1 General Information 43
6 Estimating Depth and Current of a Utility 45
6.1 Utility Line Depth 45
4 Table of Contents

6.2 Sonde Depth 46
6.3 Depth Code Information 46
6.4 Utility Current Measurement 47
7 Batteries 50
7.1 Locator Batteries 50
7.2 Transmitter Batteries 50
8 Functional Checks 52
8.1 Locator Health Check 52
8.2 Locator Functional Check 52
8.3 Transmitter Functional Check 53
8.4 Functional Check of the Trace Rod 55
8.5 Functional Check of the Sonde 56
9 Care and Transport 57
9.1 Transport 57
9.2 Storage 57
9.3 Cleaning and Drying 57
10 Technical Data 58
10.1 Conformity to National Regulations 58
10.1.1 Products without radio (USA: Only valid for DD120/DD130) 59
10.1.2 Products with radio (USA: DD175/DA175; EU: All instruments) 60
10.2 Transmitter Technical Data 61
10.3 Locator Technical Data 62
10.4 Conductive Rod Technical Data 64
10.5 Property Plug Connector Technical Data 65
Appendix A World Frequency Zones 66
Table of Contents 5

1 Safety Directions
1.1 General
DANGER
Incorrect power setting
The locator may fail to detect electrical services in power mode.
Precautions:
▶Before use, verify the locator is setup to be compatible with mains fre-
quency supply in your country. Options are 50 or 60 Hz.
▶Refer to A World Frequency Zones for more information.
▶Contact your agency or Leica Geosystems authorised service workshop if
your unit is incorrectly congured for your region.
The following directions enable the person responsible for the product, and
the person who actually uses the equipment, to anticipate and avoid opera-
tional hazards.
The person responsible for the product must ensure that all users understand
these directions and adhere to them.
Warning messages are an essential part of the safety concept of the instru-
ment. They appear wherever hazards or hazardous situations can occur.
Warning messages...
•make the user alert about direct and indirect hazards concerning the use
of the product.
•contain general rules of behaviour.
For the users‘ safety, all safety instructions and safety messages shall be
strictly observed and followed! Therefore, the manual must always be available
to all persons performing any tasks described here.
DANGER, WARNING, CAUTION and NOTICE are standardised signal words for
identifying levels of hazards and risks related to personal injury and property
damage. For your safety, it is important to read and fully understand the
following table with the different signal words and their denitions! Supple-
mentary safety information symbols may be placed within a warning message
as well as supplementary text.
Type Description
DANGER Indicates an imminently hazardous situation
which, if not avoided, will result in death or
serious injury.
WARNING Indicates a potentially hazardous situation
or an unintended use which, if not avoided,
could result in death or serious injury.
CAUTION Indicates a potentially hazardous situation
or an unintended use which, if not avoided,
may result in minor or moderate injury.
Description
About warning
messages
6 Safety Directions

Type Description
NOTICE
Indicates a potentially hazardous situation
or an unintended use which, if not avoided,
may result in appreciable material, nancial
and environmental damage.
☞Important paragraphs which must be
adhered to in practice as they enable the
product to be used in a technically correct
and efcient manner.
Warning against explosive material.
Warning against ammable substances.
Product must not be opened or modied or tampered
with.
Indicates the temperature limits at which the product may
be stored, transported or used.
1.2 Denition of Use
The products are intended to be used for the following applications:
•Detection, localisation and estimation of the depth of underground utilit-
ies with the use of approved accessories
•Localisation, recording and storage of product usage
•Data transfer with Bluetooth
•Data communication with external appliances
•Use of the product without instructions
•Use outside of the intended use and limits
•Disabling of safety systems
•Removal of hazard notices
•Opening the product using tools, for example a screwdriver, unless this is
permitted for certain functions
•Modication or conversion of the product
•Use after misappropriation
•Use of products with recognisable damage or defects
•Use with accessories from other manufacturers without the prior explicit
approval of Leica Geosystems
1.3 Limits of Use
Suitable for use in an atmosphere appropriate for permanent human habita-
tion. Not suitable for use in aggressive or explosive environments.
Additional symbols
Intended use
Reasonably
foreseeable misuse
Environment
Safety Directions 7

WARNING
Working in hazardous areas or close to electrical installations or similar
situations
Life Risk.
Precautions:
▶Local safety authorities and safety experts must be contacted by the
person responsible for the product before working in such conditions.
1.4 Responsibilities
Leica Geosystems AG, CH-9435 Heerbrugg, hereinafter referred to as Leica
Geosystems, is responsible for supplying the product, including the User
Manual and original accessories, in a safe condition.
The person responsible for the product has the following duties:
•To understand the safety instructions on the product and the instructions
in the User Manual
•To ensure that the product is used in accordance with the instructions
•To be familiar with local regulations relating to safety and accident pre-
vention
•To stop operating the system and inform Leica Geosystems immediately if
the product and the application become unsafe
•To ensure that the national laws, regulations and conditions for the oper-
ation of the products are respected
1.5 Hazards of Use
1.5.1 General
NOTICE
Dropping, misusing, modifying, storing the product for long periods or
transporting the product
Watch out for erroneous measurement results.
Precautions:
▶Periodically carry out test measurements and perform the eld adjust-
ments indicated in the User Manual, particularly after the product has
been subjected to abnormal use as well as before and after important
measurements.
Manufacturer of the
product
Person responsible
for the product
8 Safety Directions

DANGER
Risk of electrocution
Because of the risk of electrocution, it is dangerous to use poles, levelling
staffs and extensions in the vicinity of electrical installations such as power
cables or electrical railways.
Precautions:
▶Keep at a safe distance from electrical installations. If it is essential to
work in this environment, rst contact the safety authorities responsible
for the electrical installations and follow their instructions.
WARNING
Electric shock though working on or near live electrical utilities
This can lead to dangerous situations which may result in damage or personal
injury.
Precautions:
▶Do not exceed equipment’s recommended ratings and instructions of use.
▶Inspect equipment’s cables and accessories for damage, do not use if
faulty.
▶Do not work on electrically live power utilities unless you are properly
qualied.
▶Use personal protective equipment rated for the utilities voltage and cur-
rent.
▶Familiarise yourself with National and Work regulations governing safety
and accident prevention.
WARNING
Distraction/loss of attention
During dynamic applications, for example stakeout procedures, there is a
danger of accidents occurring if the user does not pay attention to the envir-
onmental conditions around, for example obstacles, excavations or trafc.
Precautions:
▶The person responsible for the product must make all users fully aware of
the existing dangers.
WARNING
Presence of utilities without a detectable signal
The absence of a positive indication does not guarantee the non-existence of
a utility.
Without the use of appropriate accessories, the locators cannot locate non-
metallic utilities such as plastic pipes, typically used by the water and gas
utilities.
Precautions:
▶Always excavate with care.
Safety Directions 9

WARNING
Depth reading on locator might differ from actual depth of utility
When taking a depth reading, the depth is calculated as distance to the centre
of a utility or to a sonde within the utility. Depending on the diameter of
a utility, the depth reading might differ from the actual depth of the utility.
This specically applies when the signal for depth estimation is produced by a
sonde lying in a large-diameter pipe or duct.
Precautions:
▶Always take into account allowances for the diameter of a utility.
WARNING
A hazardous signal can be present at the transmitter output when used in
connection mode and on the attached accessories and live utility itself.
Precautions:
▶Take care when handling exposed or non-insulated connections. Notify
others who may be working on or around the utility.
WARNING
Inadequate securing of the working site
This can lead to dangerous situations, for example in trafc, on building sites
and at industrial installations.
Precautions:
▶Always ensure that the working site is adequately secured.
▶Adhere to the regulations governing safety, accident prevention and road
trafc.
WARNING
Inappropriate mechanical inuences to batteries
During the transport, shipping or disposal of batteries it is possible for inap-
propriate mechanical inuences to constitute a re hazard.
Precautions:
▶Before shipping the product or disposing it, discharge the batteries by the
product until they are at.
▶When transporting or shipping batteries, the person in charge of the
product must ensure that the applicable national and international rules
and regulations are observed.
▶Before transportation or shipping, contact your local passenger or freight
transport company.
10 Safety Directions

WARNING
Exposure of batteries to high mechanical stress, high ambient temper-
atures or immersion into uids
This can cause leakage, re or explosion of the batteries.
Precautions:
▶Protect the batteries from mechanical inuences and high ambient tem-
peratures. Do not drop or immerse batteries into uids.
WARNING
Short circuit of battery terminals
If battery terminals are short circuited e.g. by coming in contact with jewellery,
keys, metallised paper or other metals, the battery can overheat and cause
injury or re, for example by storing or transporting in pockets.
Precautions:
▶Make sure that the battery terminals do not come into contact with
metallic/conductive objects.
WARNING
Unauthorised opening of the product
Either of the following actions may cause you to receive an electric shock:
•Touching live components
•Using the product after incorrect attempts were made to carry out repairs
Precautions:
▶Do not open the product!
▶Only authorised Leica Geosystems Service Centres are entitled to repair
these products.
WARNING
Improper disposal
If the product is improperly disposed of, the following can happen:
•If polymer parts are burnt, poisonous gases are produced which may
impair health.
•If batteries are damaged or are heated strongly, they can explode and
cause poisoning, burning, corrosion or environmental contamination.
•By disposing of the product irresponsibly you may enable unauthorised
persons to use it in contravention of the regulations, exposing themselves
and third parties to the risk of severe injury and rendering the environ-
ment liable to contamination.
Precautions:
▶The product must not be disposed 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 unauthorised
personnel.
Product-specic treatment and waste management information can be
received from your Leica Geosystems distributor.
Safety Directions 11

WARNING
Improperly repaired equipment
Risk of injuries to users and equipment destruction due to lack of repair
knowledge.
Precautions:
▶Only authorised Leica Geosystems Service Centres are entitled to repair
these products.
1.5.2 Using the Product with a Signal Transmitter
DANGER
Clipping a transmitter clamp around a live utility
When a transmitter clamp is clipped around a live utility, a hazardous signal
might be present on the utility or at the transmitter plug connector, causing
you to receive an electric shock.
Precautions:
▶Do not clip a transmitter clamp around live utilities that have impaired or
no insulation.
▶Always ensure that the transmitter plug connector is connected to the
transmitter before you clip the transmitter clamp around a live utility.
DANGER
Connecting the cable set of the transmitter to a live utility
Connecting the cable set of the transmitter directly to a live utility can cause
you to receive an electric shock.
Precautions:
▶Never connect the cable set of the transmitter directly to a live electrical
utility.
DANGER
Power output of signal transmitter
The signal transmitter can output potentially lethal voltages!
Precautions:
▶Take care when using the maximum power output of the signal transmit-
ter.
▶Take care when handling exposed or non-insulated connections, including
the transmitter’s cable set, the earth pin and the connection to the utility.
▶Notify others who may be working on or around the utility.
WARNING
Battery pack of the signal transmitter may get hot after prolonged use
Risk of burning injuries.
Precautions:
▶Avoid touching the hot battery pack.
▶Allow the battery pack to cool down before removing it.
12 Safety Directions

1.6 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 elec-
tromagnetic disturbances to other equipment.
CAUTION
Electromagnetic radiation
Electromagnetic radiation can cause disturbances in other equipment.
Precautions:
▶Although the product meets the strict regulations and standards which
are in force in this respect, Leica Geosystems cannot completely
exclude the possibility that other equipment may be disturbed.
CAUTION
Use of the product with accessories from other manufacturers. For
example, eld computers, personal computers or other electronic
equipment, non-standard cables or external batteries
This may cause disturbances in other equipment.
Precautions:
▶Use only the equipment and accessories recommended by Leica Geosys-
tems.
▶When combined with the product, other accessories must meet the strict
requirements stipulated by the guidelines and standards.
▶When using computers, two-way radios or other electronic equipment,
pay attention to the information about electromagnetic compatibility
provided by the manufacturer.
CAUTION
Intense electromagnetic radiation. For example, near radio transmit-
ters, transponders, two-way radios or diesel generators
Although the product meets the strict regulations and standards which are in
force in this respect, Leica Geosystems cannot completely exclude the possib-
ility that the function of the product may be disturbed in such an electromag-
netic environment.
Precautions:
▶Check the plausibility of results obtained under these conditions.
Description
Safety Directions 13

CAUTION
Electromagnetic radiation due to improper connection of cables
If the product is operated with connecting cables, attached at only one
of their two ends, the permitted level of electromagnetic radiation may be
exceeded and the correct functioning of other products may be impaired. For
example, external supply cables or interface cables.
Precautions:
▶While the product is in use, connecting cables, for example product to
external battery or product to computer, must be connected at both ends.
WARNING
Use of product with radio or digital cellular phone devices
Electromagnetic elds can cause disturbances in other equipment, installa-
tions, medical devices, for example pacemakers or hearing aids, and aircrafts.
Electromagnetic elds can also affect humans and animals.
Precautions:
▶Although the product meets the strict regulations and standards which
are in force in this respect, Leica Geosystems cannot completely exclude
the possibility that other equipment can be disturbed or that humans or
animals can be affected.
▶Do not operate the product with radio or digital cellular phone devices in
the vicinity of lling stations or chemical installations, or in other areas
where an explosion hazard exists.
▶Do not operate the product with radio or digital cellular phone devices
near medical equipment.
▶Do not operate the product with radio or digital cellular phone devices in
aircrafts.
▶Do not operate the product with radio or digital cellular phone devices for
long periods with the product immediately next to your body.
14 Safety Directions

2 Description of the System
2.1 System Information
Locators are used to detect buried conductive utilities that emit an electro-
magnetic signal. Such a signal is generated as an electrical current passes
through the utility.
Signal transmitters are used to apply a distinct signal to utilities with the
following intention:
•To improve the detection success.
•To trace the route of a utility.
•To make a depth or current measurement.
Accessories are used with the locator and transmitter to localise the position
of utilities, including some that are non-metallic.
The locators and transmitters described within this manual greatly facilitate
the search process and help to reduce the dangers and costs associated
with utility strikes. However, electromagnetic location depends on the utilities
being conductive (metallic) and emitting a signal as current passes through
them.
☞Keep in mind that a locator on its own cannot detect all utilities. Take
care when excavating. We recommend that you adopt a safe system
which includes the planning of the search process in advance, the
use of utility maps, the use of locators and transmitters, and the use
of safe digging practices.
2.2 System Components
The delivered components depend on the package ordered.
a DD120, DD130, DD175 Locators
b Trace Rod (non-metallic utility tracer)
c Transmitter Cable Set Extension
d Property Plug Connector
eTransmitter Clamp 2 ×
f Sonde
g Sonde
General description
☞
Available system
components
Description of the System 15

2.3 Locator Components
0016742_001
a
b
c
d
e
f
aDisplay panel
Contains the operational controls.
bSpeakers
(mounted internally left and right)
Active at power on and when a signal is detec-
ted.
cOn/Off trigger
Press and hold the trigger to activate the Loc-
ator.
Release the trigger to deactivate.
dBattery hatch release
Pressing the release button unlocks the bat-
tery hatch allowing access to the battery com-
partment.
eBattery compartment
6 x LR6 (AA) alkaline batteries are used.
Replace all batteries when indicated.
fCase foot
The case foot can be replaced if it is worn.
Contact your agency or Leica Geosystems
authorised service workshop.
2.4 Signal Transmitter Components
26034_001
b
c
a
d
e
f
a Accessory compartment
b Connection socket
c4 × LR20 alkaline batteries
compartment
d Signal transmitter keyboard
e Speaker
f Induction arrow
Description of
components
DD120, DD130,
DD175 locators
Description
of transmitter
components
16 Description of the System

3 Operation of the Locator
3.1 Display Panel Overview
a
b
c
d
h
i
j
k
l
m
n
e
0016743_002
g
f
aSignal Strength Indicator
Indicates the response of the Locator
to a signal (utility).
bMode Indicators
Displays the selected mode: Power,
Radio, 8 kHz, 33 kHz, Auto, (512 Hz
and 640 Hz on DD130 and DD175).
As shown, from bottom to top.
cFunction Button
Selects operating mode.
dLight Sensor
Automatically switches the displays
backlight on or off to suit light con-
ditions.
eBattery Indicator
Indicates the battery condition. Segment illumination decreases as
battery condition declines. Replace the batteries when the battery
indicator is empty.
fGPS
Only for the DD175.
gBluetooth
Only for the DD175.
hWrench
Indicates the Locator requires periodic service or unit is faulty.
iNumeric Signal Strength Indicator (SSI)
Symbol Static: SSI is enabled.
SSI is disabled.
jCurrent Indicator (DD130 and DD175)‐Indicates the amount cur-
rent owing through a service which is applied by the Transmitter.
This is measured in milliamperes (mA).
kMeasurement Unit
Indicates depth indication is in metric or feet and inches.
lDisplay Readout
Alpha numeric matrix indicates system set up and depth indication.
mDepth Mode Indicators
Indicates a depth reading to a utility or a Sonde. Depth icon used to
indicate Hazard Zone status.
ni Button
Used to access the user settings and to provide a depth readout for
Depth locators.
3.2 Locator Setup and Information
Only at the rst use to start the locator:
DD120, DD130,
DD175 panel over-
view
Turning on and off
the DD120, DD130,
DD175
Operation of the Locator 17

1. Press and hold the trigger until the word SET
appears on the display.
0016786_002
2. Then press and hold the Function key for
ve seconds.
The locator can be operated now.
0023089_001
5 sec.
Normal use:
1. Press and hold the trigger to turn on and
operate the locator.
0016786_002
2. Release the trigger to turn off the locator.
The DD120, DD130, DD175 locators offer a range of settings which the oper-
ator can adjust to their own preference. It also displays additional service and
contact information as detailed.
For DD120, DD130 and DD175:
Setting Description
EST Performs a function check on the locators hardware
and software, displaying PAS if the Locator is within
predened tolerance or ERR if the locator is not.
H.Z Switches hazard zone on or off.
VOL Adjust volume level (0 to 10).
HLD Adjust peak hold duration (0 to 5 seconds).
SSI Displays a numeric signal strength indicator.
CST Adjusts display’s contrast (0 to 15).
M/I Displays unit of measurement.
CAL Displays the next service date DD/MM/YY.
CON Displays supplier/company name.
TEL Displays supplier/company telephone number.
I.D Displays the operator’s name.
Locator settings
18 Operation of the Locator

Setting Description
PWR Displays the power mode regional setting.
Refer to World Frequency Zones for more informa-
tion.
SR# Displays unit serial number.
VER Displays software version.
LST
(DD130 and
DD175)
Sets the Locators start up mode.
On: The Locator starts in the last mode of operation
used.
Off: The Locator starts in Power mode.
Aditional settings – for DD175 only:
Setting Description
CLK Displays the date and time held within the locators
memory.
Format: DD/MM/YY/HH/MM/SS
LOG Displays the last stored log number 001 to 999.
COM Adjusts the locators Bluetooth or GPS settings:
•PC: Enables Bluetooth communication to DX
Softwares.
•BT1: Enables Bluetooth option 1 (refer to sec-
tion xxx)
•BT2: Enables Bluetooth option 2 (refer to sec-
tion xxx)
•OFF: Disables Bluetooth
1. Switch the Locator on.
2. Ensure the Locator is in Power mode.
If required, press Function Button to select mode.
3. Depress the i Button until the user settings are displayed in the
display readout.
4. Press Function Button to toggle through to desired setting.
5. Press i Button to select the setting.
6. Press Function Button to activate/adjust.
7. Press i Button to store and exit.
DANGER
Incorrect power setting
The locator may fail to detect electrical services in power mode.
Precautions:
▶Before use, verify the locator is setup to be compatible with mains fre-
quency supply in your country. Options are 50 or 60 Hz.
▶Refer to A World Frequency Zones for more information.
▶Contact your agency or Leica Geosystems authorised service workshop if
your unit is incorrectly congured for your region.
Accessing and adjust-
ing the settings
Operation of the Locator 19

F
i
0016745_001
1. Replace or Recharge the batteries when the battery status indicator
is empty.
2. Press the release button to unlock the Battery Hatch. Remove the
battery holder from the Locator.
3. Replace all batteries with six new LR6 (AA) type alkaline batteries, or
remove and recharge the battery pack if rechargeable batteries are
tted.
3.3 Hazard Zone
Provides an additional warning to the close proximity of buried services and
functions in the following modes:
•Power
•8 kHz
•33 kHz
•Auto Mode (Power mode only)
•512 Hz & 640 Hz (DD130 and DD175 model only)
Status
indicator Description
Hazard zone is switched on.
Hazard zone on and is alarming.
Hazard zone is switched off.
Changing the battery
Description
Description
20 Operation of the Locator