O P ERATION M ANUAL
RD7100™
P r e c i s i o n u t i l i t y Ca b l e & P i p e Lo cato r
9 0 / R D 7 1 0 0 - O P M AN - EN G / 0 1
ISSUE 1
9/2015
R e a d a n d u n d e r s ta n d t h i s m a n ua l p r i o r to o p e r at i n g t h E sys t e m
Table of Contents
Section 1 - Preface ....................................... 2
Section 6 - Depth and current readings .. 25
1.1 Important notices ......................................... 2
1.2 Compliance.................................................. 3
1.3 Intellectual property ..................................... 3
6.1 TruDepth™ ............................................... 25
6.2 Verifying depth measurements .................. 25
6.3 Current readings ....................................... 26
Section 2 - Introduction ............................... 4
Section 7 - Locating techniques .............. 28
2.1 About this manual ........................................ 4
2.2 About the RD7100 ....................................... 4
2.3 Extended warranty ....................................... 4
2.4 Manual outline ............................................. 4
2.5 Safety .......................................................... 4
2.6 Training ....................................................... 5
7.1 Identifying target utilities ............................ 28
7.2 Signal & ground connection....................... 29
7.3 Double-ended connections ........................ 29
Section 3 - System overview ....................... 7
3.1 RD7100 locator ............................................ 7
3.2 Tx-1, Tx-5 and Tx-10 transmitters ................ 9
3.3 Using the menu............................................ 9
Section 4 - Operation ................................. 11
4.1 First use ..................................................... 11
4.2 Power on / off ............................................ 13
4.3 Keypad actions & shortcuts ....................... 14
4.4 Antenna modes.......................................... 14
4.5 System setup ............................................. 15
4.6 Dynamic Overload Protection™ ................. 16
4.7 TruDepth™ measurement ......................... 16
4.8 StrikeAlert™ ................................................ 16
4.9 Backlight .................................................... 16
4.10 SideStepauto™ ......................................... 16
4.11 Transmitter power output ......................... 17
4.12 Transmitter Eco mode.............................. 17
4.13 Measure mode ......................................... 17
4.14 CALSafe™............................................... 18
4.15 Usage-Logging ........................................ 18
4.16 GPS (GNSS) ........................................... 19
Section 8 - Using accessories .................. 30
8.1 About accessories ..................................... 30
8.2 Headphones .............................................. 30
8.3 Locator clamps .......................................... 30
8.4 Transmitter clamps .................................... 31
8.5 Sondes ...................................................... 32
8.6 Stethoscopes ............................................ 34
8.7 Submersible antenna ................................ 34
Section 9 - Fault-finding ........................... 36
9.1 About fault-finding ..................................... 36
9.2 Preparation ............................................... 36
9.3 How to find a fault ..................................... 37
Section 10 - Appendices ........................... 38
10.1 Care and maintenance ............................ 38
10.2 Enhanced Self-Test ................................. 38
10.3 RD Manager™ ........................................ 38
10.4 Warranty and extended warranty............. 39
10.5 Upgrading software ................................. 39
10.6 eCert ....................................................... 39
10.7 Time and date error messages ................ 39
10.8 List of supported accessories .................. 40
Section 5 - Locating cables and pipes ..... 20
5.1 Frequencies ............................................... 20
5.2 Antenna modes.......................................... 21
5.3 Compass ................................................... 23
5.4 Trace ......................................................... 23
5.5 Pinpoint ..................................................... 23
5.6 Sweep and search ..................................... 23
© 2015 Radiodetection Ltd
1
Section 1 - Preface
Before you begin
Thank you for your interest in Radiodetection’s
RD7100™ cable and pipe locator.
The RD7100 delivers the latest in locating technology in
a powerful yet ergonomic and light-weight design.
Please read this user manual in its entirety before
attempting to use the RD7100 system.
Radiodetection products, including this manual, are
under continuous development. The information
contained within is accurate at time of publication;
however the RD7100, this manual and all its contents
are subject to change.
Radiodetection Limited reserves the right to modify the
product without notice and some product changes may
have taken place after this user manual was published.
Contact your local Radiodetection dealer or visit
www.radiodetection.com for the latest information about
the RD7100 product family, including this manual.
1.1 Important notices
General
The performance of any cable and pipe locator may be
affected when used in close proximity to ferrous
materials such as manhole covers, steel-toe boots,
mobile phones and nearby vehicles. Keep a distance of
one or two meters from these objects when taking critical
measurements such as depth and current readings.
This instrument, or family of instruments, will not be
permanently damaged by reasonable electrostatic
discharge and has been tested in accordance with IEC
801-2. However, in extreme cases temporary
malfunction may occur. If this happens, switch off, wait
and switch on again. If the instrument still malfunctions,
disconnect the batteries for a few seconds.
Safety
WARNING! Failure to comply with safety warnings
can cause serious injury or death
CAUTION!: Failure to comply with safety cautions can
result in damage to equipment or property
This equipment shall be used only by qualified and
trained personnel, and only after fully reading this
Operation Manual.
WARNING! Direct connection to live conductors is
POTENTIALLY LETHAL. Direct connections to live
conductors should be attempted by fully qualified
personnel only using the relevant products that allow
connections to energized lines.
WARNING! The transmitter is capable of outputting
potentially lethal voltages. Take care when applying
signals to any pipe or cable and be sure to notify other
technicians who may be working on the line.
WARNING! Reduce audio level before using
headphones to avoid damaging your hearing.
WARNING! This equipment is NOT approved for use
in areas where hazardous gases may be present.
WARNING! Before removing the transmitter battery
pack, switch off the unit and disconnect all cables
WARNING! The RD7100 locator will detect most
buried conductors but there are some objects, including
live objects, which do not radiate any detectable signal.
The RD7100, or any other electromagnetic locator,
cannot detect these objects so proceed with caution.
There are also some live cables which the RD7100 will
not be able to detect in Power mode. The RD7100 does
not indicate whether a signal is from a single cable or
from several in close proximity.
CAUTION: The battery cover, the accessory cover and
the headphone cover protect the locator’s sockets from
debris and water ingress. If they get damaged or lost,
contact Radiodetection or your local service
representative for a replacement one.
Batteries
WARNING! Batteries can get hot after prolonged use
at full output power. Take care while replacing or
handling batteries.
WARNING! Do not tamper with, or attempt to
disassemble the battery packs.
CAUTION: If battery failure is suspected return the entire
unit to an authorized repair center for investigation and
repair. Local, national or IATA transport regulations may
restrict the shipment of faulty batteries. Check with your
courier for restrictions and best practice guidelines. Your
local Radiodetection representative will be able to direct
you to our authorized repair centers.
WARNING: Exposing the battery to a high
temperature above 60°C (140°F) may activate safety
systems and cause a permanent battery failure.
© 2015 Radiodetection Ltd
2
Disposal
This symbol on the product, accessories or
literature indicates that the product and its
electronic accessories (e.g. charger, headset,
USB cable) must not be treated as domestic
waste, but must be disposed of professionally.
It is your responsibility to dispose of your waste
equipment by handing it over to a designated collection
point for the recycling of waste electrical and electronic
equipment. The separate collection and recycling of your
waste equipment at the time of disposal will help to
conserve natural resources and ensure that it is recycled
in a manner that protects human health and the
environment. For more information about where you can
drop off your waste equipment for recycling, please
contact your local city office, your disposal service or
product supplier.
Please dispose of this device in a manner appropriate to
the relevant legal requirements at the end of its product
life
Batteries should be disposed of in accordance with your
company’s work practice, and / or the relevant laws or
guidelines in your country or municipality.
1.2 Compliance
Modifications: Any modifications made to this
equipment not approved by Radiodetection may void the
authority granted to the user by the FCC to operate this
equipment.
Industry Canada Compliance Statements
ICES-003 Class A Notice:
This Class A digital apparatus complies with Canadian
ICES-003.
Avis NMB-003, Classe A:
Cet appareil numérique de la classe A est conforme à la
norme NMB-003 du Canada
1.3 Intellectual property
EU Compliance
This equipment complies with the following EU
Directives:
R&TTE Directive 1999/5/EC
Low Voltage Directive: 2006/95/EC
EMC Directive: 2004/108/EC
FCC Compliance Statement
This equipment complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:

The equipment
interference.

The equipment must accept any interference
received, including interference that may cause
undesired operation.
may
not
cause
harmful
This equipment has been/ tested and found to comply
with the limits for a Class A digital device pursuant to
Part 15 of the FCC Rules.
© 2015 Radiodetection Ltd
These limits are designed to provide reasonable
protection against harmful interference when the
equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the manufacturer’s instruction manual,
may cause
harmful interference
with
radio
communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in
which case you will be required to correct the
interference at your own expense.
© 2015 Radiodetection Ltd. All rights reserved.
Radiodetection is a subsidiary of SPX Corporation. SPX,
the green “>” and “X” are trademarks of SPX
Corporation, Inc. Radiodetection and RD7100 are
registered trademarks of Radiodetection in the United
States and/or other countries.
Trademarks and Notices. The following are trademarks
of Radiodetection: eCert, TruDepth, SideStep,
SideStepauto, RD Manager, Peak+, SurveyCERT,
StrikeAlert, CALSafe. The design of the RD7100
locators and transmitters has been registered. The
design of the 4 chevrons has been registered.
Windows and Windows XP are either registered
trademarks or trademarks of Microsoft Corporation in the
United States and / or other countries.
Due to a policy of continued development, we reserve
the right to alter or amend any published specification
without notice. This document may not be copied,
reproduced, transmitted, modified or used, in whole or in
part, without the prior written consent of Radiodetection
Ltd
3
Section 2 - Introduction
2.1 About this manual
2.4 Manual outline
This manual provides cable and pipe survey
professionals with comprehensive operating instructions
for the RD7100 locator and transmitter system. Before
operating the RD7100 system it is very important that
you read this manual, noting all safety warnings and
procedures.
Section 1 includes an overview of safety procedures and
notices. Review them before moving on to Section 2 and
the rest of this manual
Additional documentation
The full product specification, RD Manager and
SurveyCERT+ manuals are available to download from
www.radiodetection.com.
Section 3 provides an overview of the RD7100 system
with annotated diagrams of the locator and transmitter
Section 4 introduces basic setup and operation using the
RD7100 locator’s menu system.
Section 5 introduces the theory and practice of cable and
pipe location using the RD7100 locator and transmitter.
Section 6 introduces depth and current readings.
Section 7 provides general locating tips.
2.2 About the RD7100
The RD7100 product family offers a comprehensive
range of locators and transmitters designed to meet
specific customer needs.
Section 8 introduces the range of accessories that are
compatible with the RD7100 system.
Section 9 introduces cable sheath fault-finding using the
RD7100 locator and an accessory A-frame.
The RD7100 locator is ergonomically designed to
provide the operator with a balanced, light weight tool
that encourages extended use in most environments.
Section 10 includes several appendices with reference
material and other technical information.
A wide range of accessories are available to enhance
the performance and to add extra functionality.
2.5 Safety
For more information about the Precision Locate
Accessories Range, visit
Read this manual in its entirety before attempting to
operate the RD7100 locator or transmitter. Note all
safety notices in the preface and throughout this manual
www.radiodetection.com/accessories
2.3 Extended warranty
You are responsible for determining whether the
conditions are suitable for using this device. Always
carry out a risk assessment of the site to be inspected
Users can extend the warranty period to a total of 3 years
by registering their products (locators and transmitters)
within 3 months from purchase.
Follow your company and national safety procedures
and or requirements when operating this equipment in
any environment or workplace. If you are unsure what
policies or procedures apply, contact your company or
site’s occupational health and safety officer or your local
government for more information.
Registration is performed using the RD Manager PC
software. See Section 10.3 for further details
Do not use this equipment if you suspect that any
component or accessory is damaged or faulty.
NOTE: You can also register your products by e-mail.
See Section 10.4 for more details
Before inserting the earth stake into the ground, ensure
there are no shallow cables or services that could be
damaged by the earth stake
From time to time Radiodetection may release new
software to improve the performance or add new
functionality to products. By registering the user will have
the option of subscribing to e-mail alerts advising about
any new software and special offers related to its product
range.
Use authorized accessories only. Incompatible
accessories may damage the equipment or give
inaccurate readings.
RD7100 locators and transmitters are covered by a 1
year warranty as standard.
Users can opt out any time from receiving software and
technical notifications or just from receiving marketing
material.
© 2015 Radiodetection Ltd
If you intend to uncover a sub-surface utility by digging,
you must follow your company, region and country’s
codes of practice for excavation.
Keep this equipment clean and arrange for regular
services with an authorized Radiodetection service
center. More information can be found in the Appendix
or from your local Radiodetection representative.
4
It is important to regularly clean and sanitize products
which may become contaminated through contact with
foul water or other contaminants
Headphone use: you need to remain alert to traffic and
other hazards that are normally heard outdoors. Always
turn the volume down before plugging headphones into
an audio source and use only the minimum level,
necessary to take your measurements. Excessive
exposure to loud sounds can cause hearing damage.
guarantee the validity of any measuring results nor can
we accept liability for any such results. We are on no
account able to accept liability for any damage which
may be caused as a consequence of the use of these
results. Please see the Standard Warranty Terms
enclosed with the product for further information.
2.6 Training
Do not attempt to open or dismantle any part of this
equipment unless directed specifically by this manual.
Doing so may render the equipment faulty and may void
the manufacturer’s warranty.
Radiodetection provides training services for most
Radiodetection products. Our qualified instructors will
train equipment operators or other personnel at your
preferred location or at Radiodetection headquarters.
You are responsible for determining whether you
consider the measurement results to be valid and for any
conclusions that are reached or any measures that are
taken as a result thereof. Radiodetection can neither
For more information go to www.radiodetection.com or
contact your local Radiodetection representative.
© 2015 Radiodetection Ltd
5
Figure 3.1: RD7100 Locator
© 2015 Radiodetection Ltd
6
Section 3 - System overview
3.1 RD7100 locator
15 Null / Proportional Guidance arrows: Indicates the
location of the line relative to the locator
Locator features
16 Battery icon: Indicates the battery level
1
Keypad
17 Gain readout
2
LCD with auto backlight
18 Volume icon: Displays the volume level
3
Speaker
19 Radio Mode: Indicates when Radio Mode is active
4
Battery compartment
20 Power Mode: Indicates when Power Mode is active
5
Optional Lithium-Ion battery pack
21 Accessory indicator: Indicates when an accessory is
connected
6
Accessory connector
7
Headphone connector
22 A-Frame icon: Indicates when the A-Frame is
connected
8
USB connector (inside the battery compartment)
23 Frequency / current / menu readout
Locator keypad
9
Power key : Switches the unit on and off.
Opens the locator menu
10 Frequency key : Selects frequency.
Closes submenu
11 Up and down arrows
: Adjusts the locator
signal gain.
Scrolls through the menu options
12 Antenna key : toggles Peak, Peak+, Null, Broad
Peak and Guidance modes.
Opens a submenu
Locator screen icons
13 Indicates the signal strength and Peak marker
14 Signal strength: Numerical indication of signal
strength
© 2015 Radiodetection Ltd
24 Antenna mode icon: Indicates antenna selection:
Peak, Null, Peak+ and Guidance Mode (model
dependent)
25 Sonde icon: Indicates that the signal source is from
a sonde
26 Line icon: Indicates that the signal source is from a
line
27 Compass indicator: Shows the direction of the
located cable relative to the locator.
28 Transmitter standby indicator
29 Depth readout
30 GPS Status icon (GPS models only): One bar
indicates that GPS is active. 3 bars indicates that the
GPS has locked to the GPS satellite system
31 GPS Signal quality icon (GPS models only):
Indicates the quality of the signal being received
7
Figure 3.2 Tx Transmitter
© 2015 Radiodetection Ltd
8
3.2 Tx-1, Tx-5 and Tx-10
transmitters
Transmitter features
1
Keypad
2
LCD
3
Removable accessory tray
4
D-cells battery holder
5
Optional Lithium-Ion rechargeable battery pack
Figure 3.3 Tx-1, Tx-5 and Tx-10 signal transmitters
Transmitter keypad
3.3 Using the menu
6
Power key : Switches the unit on and off.
Opens the transmitter menu
7
Frequency key : Selects frequency.
Menu navigation key
8
Up and down arrows
: Adjusts the output
signal level.
Scrolls through the menu options
9
Measure key : Used to take voltage and
impedance measurements.
Opens a sub menu.
The RD7100 locator and transmitter menus allow you to
select or change system options. Once entered, the
menu is navigated using the arrow keys. Navigation is
consistent on both the transmitter and the locator. In the
menu the options will appear in the bottom left-hand
corner of the display. Note that when browsing the
locator menu, the
and
keys act as left and right
arrows. When browsing the transmitter menu the
and
keys act as left and right arrows. The right arrow
enters a submenu and the left arrow selects the option
and returns to the previous menu.
Transmitter screen icons
10 Battery icon: Indicates the battery level
11 Alphanumeric description of selected operation
mode
12 Standby icon: Appears when the transmitter is in
Standby Mode
13 Output level: Displays transmitter output power
14 Accessory or Measurement indicators: Indicates if
an accessory is connected or if measure mode is
active
15 DC icon: Appears when the transmitter is powered
from a DC source
16 Induction indicator: Appears when the transmitter is
in Induction Mode
17 A-Frame (Tx-5 or Tx-10 only): Indicates when the
transmitter is in Fault-Find Mode
18 Voltage warning indicator: Indicates that the
transmitter is outputting potentially hazardous
voltage levels
19 Volume icon: Displays the volume level
© 2015 Radiodetection Ltd
9
Navigating the locator menu
Navigating the transmitter menu
1
Press the
1
Press the
2
Use the
options
2
Use the
options
3
Press the
3
Press the
4
Use the
or
submenu options
arrows to scroll through the
4
Use the
or
submenu options
5
Press the
key to make a selection and return to
the previous menu
5
Press the
key to confirm selection and return to
the previous level or exit the menu
6
Press the
screen
6
Press the
screen
key to enter the menu
or
keys to scroll through the menu
key to enter the option's submenu
key to return to the main operation
Locator menu options
key to enter the menu
or
keys to scroll through the menu
key to enter the option’s submenu.
keys to scroll through the
key to return to the main operation
Transmitter menu options
VOL
Adjust the speaker volume from 0 (mute)
to 3 (loudest)
VOL
Adjust the speaker volume from 0
(mute) to 3 (loudest)
GPS
Enable / disable the internal GPS module
and SBAS augmentation (GPS models)
FREQ
Enable or disable individual frequencies
BOOST
UNITS
Select metric or imperial units
Boost transmitter output for a specified
period of time (in minutes)
INFO
Run a Self-Test, display the date of the
most recent service recalibration (M CAL)
or the most recent eCert calibration
LANG
Select menu language
OPT F
Run SideStepauto™ to auto-select a
locate frequency for the connected
utility
BATT
Set battery type: Alkaline, NiMH or LiIon. Select Eco mode (alkaline batteries
only)
CAL
Displays the date of the last calibration or
eCert calibration validation
LANG
Select menu language
POWER
Select local power network frequency: 50
or 60Hz
MAX P
Enable or disable antenna modes with
the exception of Peak
Set the transmitter
maximum wattage.
MODEL
Match the transmitter setting to the
model of your locator
MAX V
Set the output voltage to maximum
(90V)
ANT
FREQ
Enable or disable individual frequencies
ALERT
Enable or disable StrikeAlert
BATT
Set battery type: Alkaline, NiMH or Li-Ion
ARROW
Select NULL or proportional Guidance
(GUIDE) arrows in Peak+ mode
COMP
Enable or disable display of the Compass
feature.
to
output
its
Table 3.2 Transmitter menu options
Table 3.1 Locator menu options
© 2015 Radiodetection Ltd
10
Section 4 - Operation
4.1 First use
Power options
RD7100 systems are shipped as standard configured to
use D cell alkaline batteries.
On the transmitter:
To fit the D-cell batteries in the transmitter, unlatch the
accessory tray. The battery compartment (see figure
3.2) is located underneath the transmitter body. Use the
turnkey to unlatch the battery compartment. Insert eight
D-Cell Alkaline or NiMH batteries.
Both the locator and transmitter can also be powered
using good quality rechargeable D-cell NiMH batteries or
the optional accessory Li-Ion rechargeable battery
packs. It’s important to set the correct battery chemistry
in the locator to optimize performance, see Section 4.5
Transmitters can also be powered using optional
accessory mains or vehicle power adapters.
Inserting batteries
RD7100 systems are shipped with D cell battery trays.
Suitable alkaline or NiMH batteries should be fitted in the
battery compartment before your first use.
On the Locator:
Figure 4.3 D-cell battery trays
To fit the D-cell batteries in the locator, unlatch the
battery compartment
Battery status
The locator and transmitter displays provide a battery
level indicator (refer to the diagrams in Section 3. When
battery replacement is necessary, the display shows a
flashing battery icon.
NOTE: Prolonged use of high power output on the
transmitter will reduce battery life.
Removing / fitting battery packs
Locator battery pack:
1
Open the battery compartment using the release
catch (figure 4.1)
2
If using a Li-Ion battery pack un-plug the lead
connector (see figure 4.7)
3
Lift the accessory cover slightly and press the
battery retaining latch inwards
Figure 4.1 Open the battery compartment
Insert 2 × good quality D-cell batteries. Note the polarity
of the cells when inserting them in the battery tray.
Figure 4.2 Inserting locator batteries
© 2015 Radiodetection Ltd
11
Figure 4.4 Press the retaining latch inwards
4
Rotate the battery pack away and up from the latch
5
Repeat on the other side to release the battery pack
completely then lift the battery pack away
Figure 4.7 Connecting the Li Ion lead
NOTE: Fully charge your lithium-ion battery pack before
its first use
Transmitter battery pack:
1
Unlatch then remove the accessory tray
Figure 4.5 Repeat then lift the battery pack away
To fit a new battery, lift both accessory covers slightly,
then gently push the replacement pack into place until it
clicks on both sides, then close the battery pack
Figure 4.8 Release then remove the accessory tray
Figure 4.6 Installing a new battery pack
2
Turn the release catch, then open the battery
compartment
3
Release the retaining catch (fig 4.10) by pressing
gently, then lift the battery pack away
4
Line up the battery pack clips with the corresponding
recesses on the transmitter body and press into
place (fig 4.11)
5
Close the battery pack, turn the retaining latch and
replace the accessory tray
If using the Li-ion battery pack, plug the lead into the
battery connector (fig 4.7).
© 2015 Radiodetection Ltd
12
Charging the lithium ion packs
WARNING! Do not heat the rechargeable battery
pack above 60°C (140°F) as this will damage the
battery’s thermal fuses.
Locator Li-Ion battery pack
To recharge the locator battery pack, connect the battery
charger to the DC input connector on the front of the
battery pack.
Figure 4.9: Opening the battery compartment
Figure 4.12 Charging the locator Li-ion battery pack
Transmitter Li-ion battery pack
To recharge the battery pack, remove the pack from the
transmitter and connect the transmitter battery charger.
Figure 4.10: Press the release catch and lift the battery pack
away
Figure 4.13 Charging the transmitter Li-Ion battery pack
For more information about recharging batteries refer to
the instructions that came with your charger
4.2 Power on / off
Switch the locator or transmitter on by pressing the
key.
To switch the locator or transmitter off, press and hold
the
key until the screen blanks off.
Figure 4.11: Line up the battery pack and press into position
© 2015 Radiodetection Ltd
NOTE: The locator will automatically power off after 5
minutes if no keys are pressed.
13
4.3 Keypad actions & shortcuts
Locator key actions
Key
Transmitter key actions
Short press
Long press
Enter the menu
Switch power off
Scroll through locate
frequencies from low
to high
When using active
frequencies:
Toggle Peak, Peak+,
Nulland Guidance
antenna modes.
In Peak+ antenna
mode:
Switch between
Guidance and Null
arrows
PL & PLG Models: In
Power Mode:
scroll through Power
Filters™ for improved
discrimination of
parallel or strong
power signals
Increase and
decrease gain.
RD7100 automatically
sets gain to mid-point
when pressed
Table 4.1: Locator key actions
Key
Short press
Enter the menu
Long press
Switch power off
Scroll through locate
frequencies from low
to high
-
Take voltage and
impedance
measurements using
selected frequency
Take voltage and
impedance
measurements at a
standardized
frequency
Adjusts the output
signal
Select standby
/
maximum standard
power
Table 4.2: Transmitter key actions
Rapidly increase and
decrease gain steps
in 1dB increments
NOTE: to scroll through frequencies from high to low,
hold
while pressing the
locators and transmitters)
button (applies to both
4.4 Antenna modes
The RD7100 locator supports 4 antenna modes to suit
your particular application or the local environment.
To scroll between locate modes, press the
key.
PEAK: For accurate locating, the Peak
bargraph provides a visual readout of the
signal strength. The Peak signal is found
directly over the buried utility.
PEAK+: Choose to combine the accuracy of
the Peak bargraph with Null arrows, which can
indicate the presence of distortion, or with
proportional Guidance arrows for rapid line
tracing – switch between them by pressing and
holding the
key.
GUIDANCE: Proportional arrows and a
ballistic directional ‘needle’ combine with audio
left/right indication for rapidly tracing the
general path of a buried utility.
NULL: Provides a quick left/right indication of
the path of a utility. As Null is susceptible to
interference, it is best used in areas where no
other utilities are present
For more information on selecting and using the various
antenna modes to assist with cable and pipe location,
refer to Section 5.
© 2015 Radiodetection Ltd
14
4.5 System setup
The RD7100 locator and transmitter settings can be
accessed via the menu. Once in the menu it is possible
to change settings according to your personal
preferences and operating requirements. Some
examples of setting changes are shown below.
5
Press the
key to accept your selection and return
to the main menu
6
Press the
screen
7
If you are using the optional Li-Ion battery pack, the
locator will automatically select the correct battery
type.
Refer to the locator and transmitter menu options (tables
3.1 and 3.2) for more information.
key to return to the main operation
Power network frequency
NOTE: These procedures refer to both the transmitter
and locator unless stated otherwise.
Before changing settings, ensure the locator or
transmitter is switched on by pressing the
key for two
seconds.
Select the correct frequency (50 or 60Hz) for your
country or region’s power supply on your locator.
To change power frequency on the locator:
1
Press the
Language
2
Scroll to the POWER menu using the
The locator and transmitter support a number of
languages. You can specify your preferred language
using the menu system.
3
Press the
4
Scroll through the power options using the
keys
To select your preferred menu language:
5
Press the key to accept your selection and return
to the main menu
6
Press the
screen
or
keys
key to enter the POWER menu
or
1
Press the
2
Scroll to the LANG menu using the
3
Press the
key (on the locator) or the
the transmitter) to enter the LANG menu
4
Scroll through the language options using the
keys
5
Press the
key to accept your selection and return
to the main menu.
To select your preferred units:
1
Press the
Press the
screen.
2
Scroll to the UNITS option using the
3
Press the
4
Scroll through the measurement options using the
or
keys to select METRE (for metric) or IMP
(for imperial) units
You should set the Locator and transmitter battery type
to match the currently installed type. This is to ensure
optimal performance and correct battery level indication.
5
Press the
key to accept your selection and return
to the main menu
Lithium-Ion batteries will automatically be detected by
the locator
6
Press the
screen
To set your battery type:
Enabling / disabling frequencies
6
key to enter the menu
key to enter the menu
or
keys
key (on
or
key to return to the main operation
Battery type
Measurement units
The RD7100 locator allows you to work in Metric or
Imperial (US customary) units.
RD7100 locators and transmitters support Lithium-Ion,
Alkaline or Nickel Metal Hydride batteries.
1
Press the
2
Scroll to the BATT menu using the
3
Press the
key (on the locator) or the
the transmitter) to enter the BATT menu
4
key to enter the menu
or
arrows
key to enter the menu
or
keys
key to enter the UNIT menu
key to return to the main operation
The locator and transmitter support a wide range of
frequencies and there may be times when some of these
frequencies are not used. It is possible to quickly enable
or disable frequencies using the menu system.
key (on
Scroll through the battery options using the the
or
keys.
© 2015 Radiodetection Ltd
key to return to the main operation
To enable or disable frequencies:
1
Press the
key to enter the menu
2
Scroll to the FREQ menu using the
or
keys
15
3
Press the
key (on the locator) or the
the transmitter) to enter the FREQ menu
4
Scroll through the frequency options using the
keys
5
Press the
key (on the locator) or the
the transmitter) to enter the frequency
6
Scroll to OFF or ON using the
7
Press the
key to accept your selection and return
to frequency menu.
8
If you wish to make any further changes follow steps
4 to 6. If you do not wish to make any further
changes press the
key twice to return to the main
operation screen.
or
key (on
or
key (on
keys
Volume control
The transmitter and locator feature an internal speaker
to provide critical warnings and assist with cable and
pipe location.
To adjust audio level:
WARNING! Muting audio on the locator will disable
the StrikeAlert audio alarm.
1
Press the
key to enter the menu
2
Scroll to the VOL menu the
3
Press the
key (locator) or the
to enter the VOL menu
or
arrows
key (transmitter)
4
Scroll through the volume options using the
keys
or
5
Press the
key to accept your selection and return
to the main menu.
6
Press the
screen.
key to return to the main operation
4.6 Dynamic Overload
Protection™
Dynamic Overload Protection™ (DOP) allows you to
locate accurately in areas with high levels of
electromagnetic interference, such as sub-stations and
beneath high-voltage transmission lines. DOP works by
disregarding signal spikes that would otherwise
overwhelm the RD7100 locator’s digital signal
processor. DOP is an integrated feature of all RD7100
locators. No action is required by the user.
NOTE: In cases of high levels of electromagnetic
interference, the DOP will not be able to prevent the
RD7100 from becoming overloaded. If the RD7100
becomes overloaded, users will be alerted by a flashing
mode icon. Both the depth and current measurements
will be disabled in the event of an overload.
© 2015 Radiodetection Ltd
4.7 TruDepth™ measurement
All RD7100 locators use TruDepth™ to measure depth
automatically when a good quality reading can be
assured.
NOTE: TruDepth only indicates a locate depth when
 The locator is correctly oriented above the target
line, cable or sonde.
 The local signal conditions are assessed as be
good enough to ensure an accurate reading
To help you orientate the locator correctly, you can use
the locator’s compass feature on the screen
Depth readings are displayed according to your
preferred units of measurement.
For more information on measuring depth, refer to
Section 6.
4.8 StrikeAlert™
StrikeAlert detects the possible presence of shallow
utilities, and warns the operator with a series of flashing
asterisks on the display and an audible alarm,
characterized by a rapid warbling sound.
StrikeAlert will activate in Power and Active locate
modes.
RD7100 locators are shipped with StrikeAlert enabled by
default; this can be disabled by accessing the StrikeAlert
(‘ALERT’) menu and setting StrikeAlert to OFF.
StrikeAlert can also be disabled using the RD Manager
PC software. Refer to the RD Manager operation manual
for further information.
WARNING! Muting audio on the locator will disable
StrikeAlert Audio alarm.
4.9 Backlight
The transmitter and locator feature a backlight to
improve LCD visibility when required. The locator’s
backlight is controlled by an ambient light sensor and
does not require adjustment by the user.
The transmitter’s LCD backlight is activated whenever
you press a key. The backlight will automatically switch
off after a few minutes.
4.10 SideStepauto™
The transmitter can be used to recommend a generalpurpose locate frequency for the intended locate task by
measuring the impedance of the target cable or pipe.
SideStepauto™ helps to improve locate accuracy by
determining the best signal. SideStepauto can also help
to prolong battery life.
SideStepauto operates only in Direct Connection mode.
16
To enable boost:
Using SideStepauto
To enable SideStepauto:
Connect the transmitter to the target utility, then
1
Press the
2
Scroll to the OPT F menu using the
3
Press the
4
Scroll through using the
is displayed
1
First configure the boost duration using the
procedure above
2
Press and hold the
the transmitter LCD
3
The transmitter will automatically exit boost mode
after the selected duration
key to enter the menu
or
keys
key until BOOST appears on
key to enter the OPT F menu
To disable boost:
5
6
or
keys until START
1
Press the
key to start SideStepauto and exit the
OPTF Menu
Press the
key to exit the menu
NOTE: SideStepauto has to be enabled for each Direct
Connection using the START option. At any time the
user may manually change the frequency using the
key
4.11 Transmitter power output
The transmitter supports several power output modes to
help you select the optimal settings for your
requirements whilst helping to prolong battery life.
Press the
key to disable boost
4.12 Transmitter Eco mode
When using alkaline D-Cells in Tx-5 and Tx-10
transmitter models you can extend the effective use of
the batteries by enabling Eco mode.
In Eco mode the power output of the transmitter reduces
when the batteries can no longer provide the required
output power.
When Eco mode is active and the power output has been
reduced, the display alternates between ‘POWER‘ and
the current output power level.
The transmitter will emit three beeps every time the
power is reduced. It will then continue emitting two beeps
each minute whilst it operates at a reduced power level.
Adjusting power output
To enable or disable Eco mode
To adjust the power output:
1
Press the
1
2
Scroll to the BATT menu using the
and enter it by pressing the
key.
3
Scroll through the battery options using the
until ALK is displayed. Press the
key.
4
Use the
or
until ECO is displayed and press
the
key to enable Eco Mode.
Press the
or
power output
keys to increase or decrease
Boost (Tx-10 only)
Boost allows the Tx-10 transmitter to output its maximum
output power. Boost mode can be set to operate for a
specified period of time.
key to enter the menu
or
keys
or
Or
To configure boost:
Select NORM and press the
mode.
1
Press the
key to enter the menu
2
Scroll to the BOOST menu using the
3
Press the
4
Set the BOOST duration using the
or
keys.
You can choose 5, 10, 15 and 20 minute periods or
ON for continuous operation
or
keys
5
Press the
key to disable Eco
key to exit the menu
key to enter the BOOST menu
5
Press the
key to accept your changes and exit
the BOOST menu
6
Press the
key to exit the menu
4.13 Measure mode
The transmitter has the capability of providing
impedance measurements by determining the resultant
impedance across the crocodile clips of the Direct
Connection lead while connected to the utility. These
measurements can be useful when assessing sheath
fault severity. It is also possible to measure potential
voltage that may be present on utilities to warn of
potentially dangerous or harmful voltages present.
In measure mode the measurement is derived from an
AC signal applied to the utility from the transmitter
© 2015 Radiodetection Ltd
17
Impedance & voltage measurements
1. Connect the Direct Connection leads to the utility
and switch on the transmitter.
2. Hold down the
key until MEAS is displayed and
the measuring icon is activated.
The transmitter display will now indicate the voltage
level measured across the connection leads.
3. Press the
key once and the display will indicate
the impedance measured across the connection
leads.
The measurement icon will display the following
symbols:
4.14 CALSafe™
Usage-logging equipped RD7100 locators can be set to
disable themselves once they are beyond the expected
service / calibration date.
When the unit is within 30 days of the service due date
the unit will display at startup the number of days left.
The locator will stop functioning on the service due date.
CALSafe™ is disabled by default. You can edit the
CALSafe service due date, and enable or disable the
function using the RD Manager PC software package.
Refer to the RD Manager operation manual for further
information.
4.15 Usage-Logging
Figure 4.13 Impedance and voltage measurements
4. To exit MEAS mode hold down the key until the
display reverts back to the normal operating screen.
Impedance measurements using
active frequency
1. Connect the Direct Connection lead to the utility and
switch on the transmitter.
2. Select the preferred frequency and output the signal.
RD7100 logging and GPS locator models feature a
powerful data logging system which records all the
instrument’s critical parameters (including GPS position,
if available) and warnings in its internal memory each
second.
The automatic logging system is always active and
cannot be disabled. Its memory is capable of storing at
least 500 days of normal usage data – based on 8 hours
operation per day. Logs can be retrieved using the RD
Manager PC application for usage analysis and survey
validation. Refer to the RD Manager operation manual
for further information.
3. Press the
key once and the display will indicate
the impedance measured across the connection
leads and also the output power of the transmitter.
4. Press the
key once to return to the normal
operating screen.
© 2015 Radiodetection Ltd
18
4.16 GPS (GNSS)
The RD7100 locator can use its internal GNSS module
when fitted to detect and store its latitude, longitude and
accurate UTC time alongside its locating data using or
the automatic logging system (GPS and Usage-Logging
equipped models only).
The presence of GNSS data allows for the data to be
mapped easily and to export and save the information
directly into GIS systems.
GPS menu
Press the
2
Scroll to the GPS menu using the
3
Press the
Use the
or
key to enter the menu
or
keys to scroll through the 5 options:
RESET: Select YES to reset the internal GPS
(GPS equipped models only)

INT: Select this to use the internal GPS if
present

OFF: Select this to switch off the internal GPS
module and save battery
SBAS: Select this to switch ON or OFF SBAS
(Satellite-Based Augmentation System).
EXIT: Select this to exit the GPS menu
5
Press the
key to accept your changes and exit
the GPS menu
Press the
GPS
operation
key to enter the GPS menu
SBAS can improve GPS accuracy, particularly
in N.America
4
The RD7100 locator display provides a number of icons
indicating the presence of an internal and active GPS
and when this has locked to the GPS system, the quality
of the signal received or numbers of satellites received.
keys


If the unit has not been used for several days the time to
first fix may take up to several minutes.
The accuracy of the GPS module is affected by the
number of satellites received and best accuracy is only
reached when the signal quality is at its maximum.
To enter the GPS menu:
1
The time required for the GPS module to lock onto the
GPS system varies depending on the length of time that
has passed since the last time the locator was used, and
on the presence of obstacles (like high buildings, trees,
etc.) that obstruct sight to the sky.
GPS signal
quality
Figure 4.14 GPS Icons
The LCD GPS operation icons provide visual information
about the status of the internal GPS module:
GPS active, seeking satellite lock
GPS satellite lock acquired
3 – 5 satellites fixed
key to exit the menu
Note: When SBAS is ON the GPS system may take
longer to lock
Internal GNSS ‘GPS’
RD7100 GPS models have an internal GNSS module.
When internal GPS is enabled, it will automatically try to
“lock” onto a number of satellites as soon as the RD7100
unit is turned on.
© 2015 Radiodetection Ltd
6 – 8 satellites fixed
9 – 11 satellites fixed
12 or more satellites fixed
Figure 4.15 GPS status and satellites in view
19
Section 5 - Locating cables and pipes
This section introduces the principals and techniques of locating buried cable and pipe utilities with the RD7100
system. For more information on the theory of cable and pipe location, refer to ABC & XYZ of locating buried pipes
and cables, which is available to download from www.radiodetection.com
5.1 Frequencies
To directly connect to a non-energized conductive utility:
1
Switch the transmitter off
2
Connect the Direct Connection lead into the
transmitter accessory socket
For a complete list of supported frequencies, refer to the
RD7100 Locator Specification datasheet.
3
Clip the red connection lead to the utility ensuring
that the area around the connection is clean and that
a positive connection is achieved
Passive frequencies
4
Clip the black connection lead as far away as
possible and at 90° to the ground stake or suitable
ground point nearby ensuring that a positive
connection is achieved
5
The display will show the Direct Connection lead
connected icon
The RD7100 locator supports a range of active and
passive frequencies. It also supports 5 additional user
definable frequencies in the range of 50Hz to 999Hz.
Passive frequency detection takes advantage of signals
that may be present on buried metallic conductors.
Dependent on the model, RD7100 locators support up to
three types of passive frequencies: Power, Radio and
CPS signals.
You can detect these frequencies without the aid of a
transmitter if they are present on the utility you are
surveying.
Power Filters™
Figure 5.1 Direct Connection lead icon
The RD7100PL and RD7100PLG locators allow you to
take advantage of the harmonic signals found on power
networks.
For more information about other signal connection
accessories, refer to Section 8.
When strong or interfering power signals are present,
accurate tracing of a target cable can be challenging.
Power Filters™ allow you to establish if a single large
power signal comes from one source or from the
presence of multiple cables. The different harmonic
characteristics of the detected lines can then be used to
trace and mark their route.
Once in Power Mode, press the
key to switch out of
Radiodetection’s sensitive Power Mode and scroll
through the five individual Power Filters.
The use of an individual Power Filter harmonic can also
allow you to locate power lines in situations where the
total signal would otherwise be too large.
Active frequencies
Active frequencies are applied to a buried conductor
using the transmitter. The transmitter can apply a signal
using three methods:
Direct Connection
In Direct Connection, you connect the transmitter output
directly to the utility. The transmitter will then apply a
discrete signal which you can locate using the locator.
This is the preferred method of applying a transmitter
signal to a utility and in the majority of applications will
apply a stronger signal to the utility, which may increase
the locate distance.
© 2015 Radiodetection Ltd
WARNING! Direct Connection to live conductors is
POTENTIALLY LETHAL. Direct connections to live
conductors should be attempted by fully qualified
personnel only using the relevant products that allow
connections to energized lines.
WARNING! The transmitter is capable of outputting
potentially lethal voltages. Take care when handling the
terminals, connection leads and ground stake, notify
other technicians working on the line of the hazard and
guard exposed conductors to prevent accidental contact.
Induction
In this mode of operation the transmitter is placed on the
ground over or near the survey area. If a Direct
Connection lead or signal clamp is not plugged into the
transmitter, it will automatically go into induction mode.
In this mode, only frequencies applicable for induction
mode will be made available as the
key is pressed.
Once activated the transmitter will induce the signal
indiscriminately to any nearby buried conductors.
Please note that these signals will also be airborne and
it is advisable to keep the distance between the
transmitter and locator at least 10m / 30’ – this distance
may need to be increased, particularly if depth
measurements are taken.
20
Signal clamp
5.2 Antenna modes
An optional signal clamp can be connected to the
transmitter and clamped around a cable or pipe to apply
the transmitter signal. This method of applying the
transmitter signal is particularly useful on insulated live
wires and removes the need to disconnect the supply to
the cable. Clamps are available up to 8.5” / 215mm in
diameter.
The RD7100 system supports up to four antenna modes,
exclusively dedicated to locating cable and pipes, and to
suit your particular application or the local environment.
These are:
WARNING! Do not clamp around uninsulated live
conductors
WARNING! Before applying or removing the clamp
around a power cable, ensure that the clamp is
connected to the transmitter at all times.
Selecting frequencies
It is important to select the correct or appropriate
frequency for your particular application. For more
information see Section 5.1 or refer to the application
note “ABC & XYZ of Locating Buried Pipes and Cables”,
which is available as a free download from
www.radiodetection.com
2
Press the
frequencies
If locating using an active frequency you must also set
your transmitter to output the matching frequency.
You can change your transmitter’s output frequency
manually using your transmitter’s keypad.
To manually select a transmitter output
frequency:
1
Press the
frequencies

Peak+ mode

Guidance mode

Null mode
Peak mode provides the most sensitive and accurate
mode for location and depth measurement. It provides a
sharp Peak response with a corresponding small
decrease in sensitivity. Peak mode cannot be disabled
using the menu.
In Peak mode the following indicators are displayed by
the LCD:
key to cycle through available
Alternatively, hold down the
key and press the
or
keys to cycle up or down the range of
frequencies
Peak mode
Peak mode
To select a frequency on the locator:
1


Depth

Current

Signal strength

Compass
To select Peak mode:
1
Press the
key until the Peak mode icon
displayed on the LCD
is
NOTE: The depth and current values will display
automatically, although these values should not be
considered accurate until the locator is directly over the
target line.
key to cycle through available
NOTE: Some frequencies require that you connect an
accessory, for example an A-Frame, before the
frequency is available.
© 2015 Radiodetection Ltd
21
Peak+™ mode
Guidance mode
Peak+™ mode combines the accuracy of the Peak
bargraph with a choice of Guidance or Null directional
arrows.
Guidance mode offers good performance in distorted
fields and provides three indicators to guide the user
towards the target line.
Guidance arrows provide visual indication of the
direction to the target utility, and are designed to get you
close to the Peak position faster, before using the Peak
bargraph to pinpoint the target utility,
The Left and Right Proportional Arrows become shorter
as the locator approaches the target, and the Target
Position Needle will move towards its central position.
The Signal Strength reading will also reach its maximum
value when the locator is positioned above the target.
Using Null arrows allow you to check for distortion before
marking a point, and should be used when accurate
locate measurements are required.
Switching between arrow types:
Any deviation from all three indicators showing the target
position in the same location could signal the presence
of a distorted field.
In Guidance mode the following indicators are displayed:
When in Peak+ mode, press and hold the
key to
toggle between Guidance and Null arrow types.

Proportional left and right arrows
You can also select the default arrow type in the locator
menu:

Target Position Needle

Signal strength

Gain

Compass

Current

Depth
1
Press the
key to enter the menu
2
Scroll to the ARROW menu using the
3
Press the
4
Select NULL or GUIDE using the
5
Press the
menu.
or
keys
key to enter the ARROW menu
or
keys
key twice to return to the main locate
To select Guidance mode:
Press the
key until the Guidance mode icon
displayed on the LCD
When using Guidance arrows:
is
Use the proportional arrows to guide the locator along
the path of the target cable or pipe. To accurately locate
the center point of the target utility, for example to mark
a point or take a survey measurement, use the Peak
bargraph to pinpoint the Peak position.
Null mode
When using Null arrows:
In Null mode the following indicators are displayed by the
LCD:
Use the arrow heads to place the locator above the
NULL point. If the Peak response is not at a maximum
then this is evidence of a distorted field. If the Peak
response is at its maximum level where the Null point is
located then there is no or very limited distortion present.
In Peak+ mode the following indicators are displayed by
the LCD:

Right and left arrows

Signal strength

Compass

Current

Depth
Press the
key until the Peak+ mode icon
displayed on the LCD
© 2015 Radiodetection Ltd

Signal strength.

Compass.

Right and left arrows.
To select null mode:
1
Press the
key until the null mode icon
displayed on the LCD
is
The sharp, null response can be easier to use than the
Peak response but is vulnerable to interference and
should not be used for locating, except in areas where
there is no interference present.
To select Peak+ mode:
1
Null mode is used to verify a locate signal in
environments with limited or no interference or distortion.
Null mode gives a null response when it is directly over
the line.
is
Guidance Mode offers improved performance in such
conditions while Peak+ mode can combine the Peak
bargraph with Guidance arrows to combine fast and
accurate locate tools.
22
5.3 Compass
marks will show an error to the same side. True line
position will be close to the Peak position.
The LCD compass provides a visual indication of the
direction of the target cable, pipe or sonde. The compass
is available for all frequencies apart from Power, Radio
and Passive.
The line lies half the distance to the other side of the
Peak position as the distance between the Peak and the
Null positions.
5.4 Trace
Line tracing can be accelerated by switching the locator
to Guidance mode.
Move the locator left and right while walking along the
path of the line to place the target position Needle
directly over the line. As you move the locator over the
line, the left and right arrows (and an accompanying
tone) will indicate if the target line is to the left or right of
the locator.
Figure 5.2: Pinpointing a target line
5.5 Pinpoint
Locating a target line in Peak, or Peak+, mode
accurately defines the position of a target line after it has
been traced and its position is approximately known.
Start with medium output power from the transmitter,
medium frequency on the transmitter and locator, and
Peak or Peak+ mode on the locator.
Set the locator sensitivity to approximately 50% by
pressing the
or
key
NOTE: it may be necessary to adjust the sensitivity level
throughout the pinpointing to keep the bar graph on
scale.
Figure 5.3: Pinpointing with Peak and Null indicators
5.6 Sweep and search
There are a number of techniques available for locating
unknown lines in an area. Using these techniques is
particularly important before conducting any excavation
work to help ensure that buried lines are not damaged.
Passive sweep
1
With the antenna perpendicular to the line, make
traverses across the line. Define the point of
maximum response.
A passive sweep is used to locate Power Radio or CPS
signals that may radiate from buried conductors.
2
Without moving the locator, turn it round as if it is on
a pivot. Stop at the point of maximum response.
To perform a passive sweep:
3
Hold the locator vertical with the antenna just above
the ground and move the locator from side to side
across the line. Stop at the point of maximum
response.
4
With the end of the antenna close to the ground,
repeat steps 2 and 3.
5
Mark the position and direction of the line.
Repeat the steps of the procedure to increase pinpoint
accuracy.
If using Peak+ mode, switch to null arrows by pressing
and holding the
key. Alternatively switch to Null
antenna mode.
1
2
3
Press the
key to select the passive frequency you
wish to locate. You can select from the following
passive frequencies (model dependent):
 Power
 Radio
 CPS (Cathodic Protection System)
Adjust the sensitivity to maximum; reduce the
sensitivity to keep the bar graph on scale when there
is a response.
Traverse the area in a grid search, at a steady walk,
and hold the locator comfortably with the antenna in
line with the direction of movement and at right
angles to any lines that may be crossed.
Move the locator to find the Null position. If the position
of the Peak and the Null pinpoints correspond, it can be
assumed that the pinpoint is accurate. The pinpoint is
not precise if the marks do not correspond, but both
© 2015 Radiodetection Ltd
23
Figure 5.4: Passive sweep
Stop when the locator response rises to indicate the
presence of a line. Pinpoint the line and mark its position.
Trace the line out of the area being searched. Resume
grid search in the area.
Figure 5.5: Inductive search
In some areas there may be a confusing amount of 50 /
60Hz power signals. Lift the locator 50mm / 2” from the
ground and continue the sweep, or if using an
RD7100PL / RD7100PLG locator, use the
key to
switch from Power mode and use Power Filters to
discriminate individual lines.
Switch the locator to Radio Mode. Increase sensitivity to
maximum and repeat the above grid search procedure
over the area. Pinpoint, mark, and trace out any lines
that are located.
In most, but not all areas, radio mode will locate lines
that do not radiate power signals and a grid search
should be made in both power and radio modes.
Inductive search
An inductive search procedure is a more certain
technique for locating unknown lines. This type of search
requires a transmitter and locator and two people. This
type of search is referred to as a ‘two person sweep’.
Before starting the sweep, define the area of search and
the probable direction of lines crossing the area. Ensure
the transmitter is switched on in induction mode.
The first person operates the transmitter and the second
person operates the locator. The transmitter induces a
signal onto lines as it passes over them and the lines are
then detected with the locator at a suitable distance
away from the transmitter (around 15 meters / 50 feet –
although this will depend upon the level of induction
power used.)
Hold the transmitter with its length aligned with the
assumed direction of any lines.
The second person holds the locator at the start of the
area to be searched and with the locator antennas at
right angles to the probable direction of the buried lines.
Set the locator sensitivity level as high as possible
without the locator picking up any airborne signals
directly from the transmitter.
When the transmitter and locator are in line both
operators start to move forward in parallel. The operator
with the locator sweeps it backwards and forwards,
keeping the locator vertical, as they proceed in parallel
with the transmitter. This method allows for
misalignment of the transmitter, locator and buried line.
The transmitter applies the strongest signal to the lines
directly below it, which are then located with the locator.
Move the transmitter from side to side to establish the
highest signal which indicates that the transmitter is also
directly above the line(s).
Mark the ground at the point of each Peak signal
detected with the locator. Repeat the search along any
other possible paths of lines. Once the positions of any
lines have been marked, reverse positions, place the
transmitter over and along each line in turn, and trace
the line out of the search area.
© 2015 Radiodetection Ltd
24
Section 6 - Depth and current readings
6.1 TruDepth™
The RD7100 locator provides automatic depth of buried
cables, pipes and sondes and when the locator is
correctly orientated above the target line or sonde.
Current readings are also displayed simultaneously if the
locator is orientated correctly (feature not available in
sonde or passive frequency modes).
Depth and current readings are automatically displayed
simultaneously, but if the locator is not correctly
orientated neither reading will be displayed.
Depth range and accuracy vary depending on the
makeup and type of target utility (e.g. cable, pipe or
sonde), its depth and external environmental factors like
electromagnetic noise, ground conditions and
interference.
WARNING: The accuracy of depth measurement is
subject to a number of factors and is meant as a guide
only. Never use the depth measurement to define
mechanical digging depths. Always follow local safe
digging guidelines.
The depth measurement is to the center of the pipe,
cable or sonde. The best readings are typically detected
from ‘active’ signals output by a transmitter rather than
from passive sources.
The RD7100 locator is capable of determining cable
depth when locating some passive power signals.
However passive signals on lines are less suited for
measuring depth because accuracy can be
compromized by interference- e.g due to the passive
signal being present on more than one line.
WARNING! Do not make depth measurements near
bends or tees in the line. Go at least 5m (16ft) from a
bend for best accuracy.
TruDepth for buried conductors or
sondes
Figure 6.1: Taking a depth reading
To minimize signal distortion, do not apply the signal by
induction. If Direct Connection or signal clamping is not
possible, place the transmitter in induction at least 15m
(50ft) from the point of any depth measurements.
Depth measurements may not be accurate if there is
audible interference or if part of the transmitter signal has
coupled to a nearby line.
Confirming the Peak position coincides with a Null
position indicates that the position is suitable for making
a depth estimate.
Figures 6.2: Depth readings

Pinpoint the target line accurately with the locator

Check the locator is directly over the line, the
antennas are at right angles to it and the locator is
vertical. Adjust the sensitivity level to bring the bar
graph indication to approximately 50%
If the ground appears to radiate a strong field, perhaps
near a radio station, check depth by holding the bottom
of the antenna 50mm (2”) above the ground and subtract
this reading from the indicated depth.
TruDepth and Compass
It is important to note that the RD7100 locator will only
display depth and current (in applicable modes) when
the locator is correctly orientated above the target line,
cable or sonde. To ensure the locator is correctly
orientated, use the Compass feature.
When locating lines, make sure the Compass display is
in the North / South orientation position.
When locating sondes (see Section 8.5), make sure the
Compass display is in the East / West orientation.
© 2015 Radiodetection Ltd
6.2 Verifying depth
measurements
Check a suspect or critical depth reading by lifting the
locator 50mm (2”) above the ground and repeating the
measurement. If the measured depth increases by the
same amount it is a good indication that the depth
reading is correct.
When locating for a conductor or sonde, depth
measurements should be precise to ±3% if conditions
are suitable. However, you may not always know if the
25
conditions are suitable so the following techniques
should be used to check critical readings:

Check that the route of the line is straight for at least
2 meters (6 ft) to either side of the measurement
point.

Check that the signal response is reasonably
constant over the 15 meter distance to the
transmitter and make depth measurements to either
side of the original point.


Check that there are no adjacent lines carrying a
significant signal within 1 to 2 meters (3 to 6 ft) of the
target line. This is the most common source of error
of depth measurements as a strong signal coupled
to an adjacent line can often introduce ± 50% error.
Make several depth measurements at points slightly
displaced from the line’s apparent position. The
shallowest indication will be the most accurate and
will also indicate the line’s position most accurately.
Checking depth accuracy
This paragraph describes several quick and easy ways
of verifying that the depth reading on the locator when
used for markers or conductors and sondes is within
acceptable limits.
Refer to this if you are getting inaccurate depth readings
from a cable or pipe for which you know the approximate
depth. Inaccurate depth readings could be the result of
the locator picking up a stronger signal such as another
cable or pipe running in close parallel to the target pipe
or cable.
Method 2
1
Apply a signal to a cable or pipe of known depth.
2
Locate the cable or pipe; the locator will display
depth on the LCD automatically.
3
Compare the depth reading on the locator with the
actual depth.
NOTE: The accuracy of depth measurement is subject
to a number of factors and is meant as a guide only.
Exercise caution when performing any excavation.
6.3 Current readings
Identifying a utility using current
measurements
Measuring current value on a line helps confirm the
identity of the line and may provide information about the
condition of cable insulation or pipe coating.
About current measurements
The transmitter applies a signal or current onto a target
line. The current decreases in strength as the distance
from the transmitter increases. This rate of decrease
depends on the type of line and on soil conditions.
Regardless of the type of line and the frequency being
used the rate of decrease should be regular with no
sudden drops or changes. Any sudden or abrupt current
change indicates that the line or its condition has
changed.
There are two ways of checking the calibration of the
locator in the field. Both methods require the use of a
transmitter:
Method 1
Place the transmitter on top of a non-metallic object, 18”
/ 500mm in height or more, on the ground and away from
any buried lines. Switch the transmitter on in induction
mode. Hold the locator with the blade horizontal and
pointing towards the front of the transmitter and
approximately five meters from the front of the
transmitter.
1
Switch the locator on.
2
Select the same frequency as is selected on the
transmitter but make sure that this frequency is in
the sonde mode.
3
Move the locator from left to right and when the
bargraph reading is at its Peak note the depth as
indicated on the locator. Measure the distance from
the base of the locator to the center of the transmitter
using a tape measure.
4
Compare this reading with the depth reading on the
locator.
The locator can be considered accurate if the difference
between the depth reading on the locator and the
distance measured with the tape is less than 10%.
© 2015 Radiodetection Ltd
Figure 6.3 Current readings
Figure 9.3 current readings
In congested areas, where there is more than one line,
the locator may sometimes detect a stronger signal from
an adjacent line to which the signal has coupled or
shares common grounding because it is nearer the
surface. Although current measurement compensates
for depth, signal response will be less as the depth
increases.
26
The line with the highest current measurement, rather
than the line giving the strongest response, is the target
line to which the transmitter signal has been connected.
Measuring current provides useful information about the
position of bends and intersections. Measuring current
after a tee will indicate the main line that pulls more
current along its greater length.
Applying a transmitter signal
The transmitter signal can be connected, clamped or
induced to the target line in the same way as the signal
for line tracing is applied.
WARNING! Direct Connection to live conductors is
POTENTIALLY LETHAL. Direct Connections to live
conductors should be attempted by fully qualified
personnel only using the relevant products that allow
connections to energized lines.
Signal current measurements
Pinpoint the line and confirm the accuracy of the Peak
pinpoint with null arrows. Check the locator is directly
over the line, with the antennas at right angles to it and
vertical.
The locator will automatically estimate and display depth
on the LCD.
A signal coupled to a nearby line may distort the
accuracy of the measurement. If the accuracy of the
reading is suspect, sweep the area to check if other
nearby lines are radiating the signal. If other signals are
causing interference, it may be necessary to make the
current measurement at another point along the line.
Both antennas are needed to make a current
measurement and locator accessory antennas such as
a normal clamp or stethoscope cannot be used.
Because current measurement is a function of depth, it
is only available in active locating modes.
Figures 6.4 – 6.6 Taking current readings
Figure 6.7: Current readings using transmitter signals
© 2015 Radiodetection Ltd
27
Section 7 - Locating techniques
7.1 Identifying target utilities
Induction
If several conductors are running in parallel, and it is not
possible to connect a transmitter, each line may be
located separately. Proceed as follows:
1
Perform a sweep of the area to find the position and
number of conductors in the area.
2
Map the direction in which the conductors are going.

Return signal flowing on another line. Use a doubleended connection to by-pass the ground return if
possible

Choose a signal application point where the line is
furthest from other lines and not in a congested
area

When using single-ended connection, site the
ground stake as far from the target line as possible
and away from other buried lines

Avoid using existing structures for ground
connections; other buried lines may be bonded to
them

A bad ground connection or just laying the ground
lead on the surface at right angles to the line may
result in less coupling than a good ground provided
long distance tracing is not required.
To trace the lines:
1
Select induction mode on the transmitter.
2
Select the same frequency as on the locator.
3
Place the transmitter on its side and in line with a
conductor
4
Ensure the
transmitter
5
This will ‘null out’ the signal directly below the
transmitter, placing no signal on that conductor, and
enable the other conductors to be located
6
Locate each conductor and mark its position
7
Move the transmitter down the route and continue
locating and marking.
8
Trace each conductor out of the search area until the
target can be accurately located.
conductor
is
directly below
the
Unwanted signal coupling
Unwanted coupling of the signal from the target line to
another nearby line is one of the most common location
problems. It leads either to an error in the marked
position and depth of the target line or to marking the
wrong line. A certain degree of coupling is unavoidable
in many situations but there are ways in which a careful
user can reduce coupling and increase location
reliability.

Avoid applying the signal by induction. The signal
may be coupling to more than one line directly from
the transmitter. Use the signal clamp where
possible.

Identify points where lines may be bonded or in
close proximity to each other. Work toward these
points rather than away from them. For example, if
gas and water pipes are bonded within a building,
apply the signal at the valves or access points in the
road rather than in the building.

Reduce coupling to a parallel line by using a low
signal frequency where available
© 2015 Radiodetection Ltd
Figures 7.1 – 7.4: Nulling utilities & interference from services
28
7.2 Signal & ground connection

Manhole covers
7.3 Double-ended connections
Sometimes when locating, it is not possible to insert the
ground stake into the earth, for example, when locating
on hard ground such as roads. In this case, the ground
return can be made by attaching the ground lead to the
metal frame of a manhole.
Large diameter water pipes and gas distribution pipes
that are laid in sections sometimes have insulated joints
between the sections and can be difficult to locate using
a single ended connect. This is because when using a
single ended connection ground return, signals can often
cause confusion by returning to the transmitter along
other lines. The problem sometimes occurs when return
signals appear stronger than on the target line, usually
because the target line is deeper than the line carrying
the return signal, or the return path may be a better
electrical conductor than the target line.
Using lighting columns
Direct Connecting to a metal, street-lamp column is
almost as effective as connecting to the cable sheath
itself. Normally the cable sheath is bonded to the metal
column, therefore a simple connection onto the column
enables the user to locate the street lighting quickly and
safely without having to call out a technician from the
lighting company.
If the lighting column is made from concrete make the
transmitter connection to the cable sheath unless the
cable is earthed to the inspection doorframe. Connection
to the cable sheath applies the transmitter signal for a
considerable distance enabling the locator to trace
cables feeding illuminated street furniture as well as
other street lights.
WARNING! The live cable connector is for use only
by operators licensed or permitted to work on live cables.
The use of a street light column as a means of applying
a signal to other power cables on the same electric
circuit is a possibility. The signal may be weak using this
method because it may have travelled some distance
back to the sub-station and out again on the other
system. With the locator used on a high sensitivity
setting it is often possible to locate a cable, which would
otherwise have been difficult or inconvenient to energize
with the transmitter signal.
Metal fence posts
Applying a double-ended transmitter connection is a
useful technique for positively tracing and identifying a
target line in a situation such as a heavily congested
industrial site, provided there are access points at each
end of the line.
Making a double-ended connection
Connect the transmitter to an access point on the target
line. The transmitter ground is connected with a long
cable to another access point further along the line. A
complete circuit is achieved without using ground as a
current return path. The long cable should be kept as far
away as possible from the expected route of the line.
This method of applying the transmitter signal is ideal for
positive identification of a target line. When a connection
has been made to two points on the same line, the same
level of current should be detectable around the circuit.
The locator display should remain constant if the depth
of the line does not change.
Finding a good ground point
When using a Direct Connection, it is important to get
the best possible grounding for the transmitter. This
provides the lowest resistance ground path and the best
output signal. If it is not possible to use the ground stake
the following are examples of good alternative ground
points:

Metal manhole covers

Metal drainage grates

Metal railings
© 2015 Radiodetection Ltd
Figure 7.5: Making double-ended connections
29
Section 8 - Using accessories
8.1 About accessories
Both the transmitter and locator are compatible with a
wide range of accessories.
When an accessory is connected, the locator or
transmitter will recognize it and will enable the mode
appropriate to the accessory. For example, attaching an
A-Frame to the RD7100 locator will automatically switch
the locator to fault-find mode and limit the number of
available frequencies to those that are compatible with
the A-Frame. The LCD will also display an icon of the
accessory and will remove any nonessential icons from
the screen.
Radiodetection supply an accessory sheet with pictures
and details of all applicable accessories which is
available on www.radiodetection.com
For a full list of supported accessories that are available
for purchase, refer to the appendix

A cable or pipe is accessible at an inspection hole or
manhole.
Connecting a clamp
1
Put the clamp connector into the accessory socket
on the front of the RD7100 locator.
2
Place the clamp around the pipe or cable and switch
the locator on.
3
Set the frequency to the same as that on the
transmitter.
4
Put the clamp around each cable in turn and note
the bar graph response. Compare the strength of
response from each cable. The cable with a
substantially stronger response than the others will
be the cable to which the transmitter signal has been
applied.
8.2 Headphones
Radiodetection supplies an optional headphone set for
the RD7100 locator. The headphones feature an
adjustable headband to ensure a tight fit when used in
the field. The accessory headphones also feature
volume adjustment for both left and right speakers.
Connect the 3.5mm headphone jack into the locator’s
headphone socket, which is located next to the
accessory panel.
WARNING! Before wearing headphones, lower the
locator’s volume levels to help prevent damage to your
hearing.
WARNING! Wearing headphones may impede your
awareness to dangers in the field such as moving traffic
or other heavy machinery. Exercise caution!
8.3 Locator clamps
A locator clamp is used to positively locate and identify
a cable when several cables are running close together.
A target cable can be identified in a chamber, on a tray
or other access point by fitting a clamp to the locator and
examining each cable in turn. Signal strength response
shown on the locator display should be noted for each
cable.
Figure 8.1: Connecting clamps
To ensure that the target cable has been correctly
identified, reverse the positions of the transmitter and
locator and check that the strongest response is still
received from the target cable by the locator in its new
position.
Locator clamp range
Standard clamps
The clamp plugs into the locator accessory socket and
is used for cable identification at points where the cable
can be accessed. The standard clamps are suitable for
cables up to 130mm (5¼”) diameter.
When to use clamps
Clamps can be used where:

Several cables or pipes run in close proximity to
each other.
© 2015 Radiodetection Ltd
30
The line should be grounded (earthed) on each side of
the clamp for the signal to transfer to the line. Ground
the line if necessary. An insulated cable may be traced
even if it has no actual ground connection, providing a
reasonable length is buried either side of the clamp to
provide capacitive coupling to ground (earth).
NOTE: It is not necessary to make a ground connection
from the transmitter when using the clamp.
Transmitter clamp range
Figure 8.2: Standard Clamp
Small clamp
The small clamp performs the same function as the
standard clamp but is useful in cramped situations where
there is insufficient access for the standard clamp.
The small clamp is suitable for cables up to 50mm (2”)
diameter.
Although transmitter and locator clamps look the same,
they have different internal windings. To prevent the
wrong clamp being connected, transmitters and locator
clamps have plugs of a different orientation.
Standard signal clamps
The standard clamps apply the transmitter signal very
selectively and effectively to a target cable up to 130mm
(5¼”) in diameter using frequencies from 8kHz to
200kHz
The standard and small clamps have a double spring
action for positive toroidal contact.
8.4 Transmitter clamps
The transmitter clamp fits around a pipe or cable and
safely applies a signal to a live insulated cable without
interrupting or disconnecting the supply. The clamp
applies a very discriminating signal to a target line with
reduced coupling to other lines. A clamp can sometimes
be a more effective method of applying the signal than
Direct Connection.
The target line will carry the strongest signal. The other
lines will carry the weaker return signal. If the system
comprises only two conductors, they may carry equal
signals.
Figures 8.5 – 8.6: Connecting transmitter clamps
WARNING! Do not clamp around uninsulated live
conductors
WARNING! Before applying or removing the clamp
around a power cable, ensure that the clamp is
connected to the transmitter at all times.
The clamp may buzz or vibrate if it is placed around a
power cable that has significant net current flow. This is
normal and does not harm the equipment.
Connecting the clamp
6
Plug the clamp into the transmitter output socket.
7
Put the clamp around the pipe or cable and ensure
that the jaws are closed. Switch the transmitter on.
The display will show the Clamp connected icon
WARNING!. The transmitter must only be connected
to live services using the appropriate accessory such as
a plug connector or live cable connector.
Figure 8.4 Clamp connected icon
© 2015 Radiodetection Ltd
31
8.5 Sondes
Sonde overview
A sonde is a self-contained battery operated transmitter
used for tracing the paths of pipes, ducts, sewers and
drains and in the precise location of blockages or
collapses. The sonde can be fitted to a flexible rod for
insertion or pushing through pipes etc. and the smaller
diameter sondes can be used in conjunction with jetting
machines and blown through the duct. A suitable
Radiodetection locator can then be used to locate the
sonde. Check that your locator features sonde locating
before starting.
Choosing a suitable sonde
Radiodetection offers a wide range of sonde to suit most
applications: From the ¼” / 6mm diameter S6 33kHz
microsonde which, with a range of 6.6” / 2m, targets
fiber-optic micro ducting or other small non-conductive
pipes, to the 33kHz Super Sonde, which with a depth
range of 50 feet / 15m targets deep sewer pipes.
Consult the precision locate accessory range brochure
or web page on www.radiodetection.com for a full list of
all available sondes and their technical specifications.
inspecting drains. Sondes used in underground drilling
and boring operations are normally housed in the boring
or drill head behind the boring or drill bit.
Locating and tracing a sonde
Insert the sonde in the drain or duct access and locate it
while it is still just in view at the drain or duct entrance.
Hold the locator vertical directly over the sonde with the
antenna in line with the sonde. Adjust the locator
sensitivity so the bar graph reads between 60% and
80%.
The sonde radiates a Peak field from the center of its
axis with a ghost signal at each end of the Peak. Move
the locator a little way behind and then in front of the axis
of the sonde to detect the ghost signals. Finding the two
ghost signals positively confirms the locate. Reduce the
locator sensitivity to lose the ghost signals but still
indicate a clear Peak response directly over the sonde.
Locator sensitivity is now set for tracing the duct or drain
unless the distance between sonde and locator
changes.
Propel the sonde three paces along the drain or duct and
stop. Place the locator over the supposed position of the
sonde. Do not adjust the sensitivity level.
Check that the sonde has sufficient range for the
application and is dimensionally small enough and
sufficiently robust for the application. Ensure that the
frequency of the sonde corresponds with the locator
frequency; the locator will not locate the sonde unless
the frequencies are the same. Sondes are marked with
their transmitting frequency. Ensure that the means of
propelling the sonde is available together with the
correct fittings and couplings.
Preparation
Insert a new battery into the sonde. A new battery or a
freshly recharged battery should be used at the
beginning of each day and preferably at the start of each
new job.
Before inserting the sonde, check that the sonde and
locator are at the same frequency and working correctly.
To do this, place the sonde on the ground at a distance
from the locator that is equal to the rated depth of the
sonde. Point the locator at the sonde with the antenna in
line with the sonde (the opposite of using the locator to
locate a line) and check that the bargraph reading
exceeds 50% at maximum sensitivity.
Figure 8.8 Sonde deployment
To locate a sonde:
1
Move the locator backwards and forwards and stop
when the bar graph indicates a Peak. You can use
the LCD compass to orient the blade of the locator
with the direction of the sonde.
2
Rotate the locator as if the blade is a pivot. Stop
when the bar graph indicates a Peak.
Propelling a sonde
Sondes have a thread at one end for connecting to drain
rods, or to other devices for inserting and propelling the
sonde along a drain or duct. Sondes may be floated
along drains at the end of a tether and floats are
available for fitting to the sewer sonde and super sonde.
Sondes can be strapped to high-pressure water jets or
similar devices used for cleaning, maintaining and
© 2015 Radiodetection Ltd
32
blade is always in line with the sonde. Find the null
positions A and B (See Figure 8.10). Measure the
distance between them and multiply by 0.7 to give an
approximate depth measurement.
Flexitrace
The Flexitrace is a traceable plastic covered fiberglass
rod incorporating wire conductors and is used for
locating small diameter, non-metallic pipes to a depth of
3 meters. The Flexitrace can be inserted into a pipe or
duct as small as 9mm / 3/8” internal diameter, and ith a
minimum bend radius of 250mm. Batteries are not
required, as the FlexiTrace is powered by any
Radiodetection transmitter.
Figure 8.9 Locating a sonde
3
Move the locator from side to side until the bar graph
indicates a Peak.
4
Repeat 1, 2 and 3 with the antenna vertical and
resting on or just above the ground. The locator
should then be directly above the sonde with the
antenna in line with it. Mark the position of the sonde
and its direction.
5
Propel the sonde a further 1 or 2 meters, pinpoint,
and mark the position. Repeat this pinpoint
procedure at similar intervals along the line of the
drain or duct until the survey is completed.
Checking sonde depth
The RD7100 locator will automatically display the depth
of a located sonde providing the locator is correctly
oriented and positioned above the sonde. Using the LCD
compass as a guide, rotate the locator until the compass
indicates the sonde is in East / West position.
The FlexiTrace has a maximum power rating of 1W.
When using the FlexiTrace with a Radiodetection Tx-5
or Tx-10 transmitter the output limit must be set to 1W in
the MAX P menu and the output voltage limit set to LOW
in the MAX V menu.
No settings are required for the Tx-1 transmitter.
WARNING: Failure to follow the Tx-5 or Tx-10
instructions above may result in the tip of the FlexiTrace
becoming too hot to touch, resulting in risk of personal
injury and damage to the equipment.
The FlexiTrace can be used in two modes: Sonde mode
or Line mode. In sonde mode only the tip of the
FlexiTrace is energized whilst in line mode its whole
length is energized.
To use as a sonde, connect both transmitter leads to the
FlexiTrace stud terminals. As the FlexiTrace terminals
are not color coded it does not matter to which terminals
the leads are connected. To use the FlexiTrace in line
mode, connect the red transmitter lead to one of the
FlexiTrace terminals and connect the black transmitter
lead to a suitable ground connection.
40mm
8mm
40mm
Figure 8.11: FlexiTrace
Figure 8.10: Calculating sonde depth
Calculation method
Pinpoint the sonde. Move the locator in front of the sonde
and still with the antenna in line with it, increase
sensitivity to find the Peak of the ghost signal. Move the
locator to behind the sonde ensuring that the locator
© 2015 Radiodetection Ltd
33
8.6 Stethoscopes
8.7 Submersible antenna
When to use a stethoscope
When to use a submersible antenna
At times, it may not be possible to put a clamp around a
cable because of congestion or because of
inaccessibility. A stethoscope antenna should be used in
place of a clamp to identify the target cable(s).
Tracing buried pipes and cables across waterways and
estuaries are frequent and critical locating applications.
Less frequent but equally important is tracing and
locating lines between the mainland and offshore
islands. When locating pipes and cables the locator
sensing antennas should be as close as possible to the
target line so it is not practical to locate lines buried
under a river or seabed from the surface. In most cases,
it is necessary to measure the depth of cover to ensure
the line is protected from dragging anchors or other
underwater hazards.
How to use a stethoscope
Plug the stethoscope into the locator accessory socket.
Press the concave head against each cable in turn to
detect a maximum signal.
Stethoscope range
Large stethoscope antenna
The large stethoscope antenna, which plugs into the
locator accessory socket, is used for cable identification
in situations where the cable is exposed. It is particularly
useful for identifying heavy cables lying in a tray where
it is not possible to fit a clamp. The concave detector
head on the end of the insulated, flexible gooseneck is
placed firmly against the cable to be identified. If there
are a number of cables, the stethoscope antenna will
give the strongest response from the cable to which the
transmitter signal has been applied.
Small stethoscope antenna
The small stethoscope antenna has a 25mm (2”)
concave head at the end of a 2m (6½ ft) lead. The small
stethoscope can be screwed into an extension rod or
used at the end of several extension rods joined together
for identifying inaccessible small cables.
Miniature hi-gain stethoscope
The miniature stethoscope is similar to the small
stethoscope but has no handle or facility for extension
rods.
The miniature stethoscope can also be used as a
miniature antenna for locations where the bulk of the
locator makes it inconvenient for use, such as locating
pipes or cables in walls.
The submersible, double depth antenna is suitable for
use under water for tracing pipes or cables. There is a
weight at the bottom of the antenna for stability and the
unit has been pressure tested to IP68 to a depth of 100m
(300ft).
The antenna is supplied with 10m of submersible marine
umbilical cable as standard, but lengths of up to 100m
can be supplied. The extra length enables the antenna
to be carried by a diver on a riverbed or seabed while the
locator is used in a surface vessel. It is crucial to have
effective communication between the operator with the
locator and the diver with the antenna.
Alternatively the antenna can be fastened to the end of
a non-metallic boom from a barge and lowered to the
riverbed or seabed.
How to use a submersible antenna
Apply the transmitter signal to the target line at an
access point on the shore. The submersible antenna line
for tracing the line underwater is plugged into the
accessory socket of the locator. The locator is used
onboard a boat, which should by positioned directly over
the line. The transmitting signal should be applied by
Direct Connection with the strongest possible signal and
at the frequency that the submersible antenna is
calibrated to. Make a ground connection about 50m
(160ft) from the transmitter. Test the quality of signal on
the line before locating on the water.
NOTE: The submersible antenna is calibrated to work at
one frequency.
Tips for using a submersible antenna:
The user in the boat should be a specialist or have
considerable experience using a locator so that they can
give concise instructions to the diver.
It is prudent for the pair to practice working together on
dry land before attempting to locate underwater. Using
the antenna the diver should locate and trace a known
line blindfolded receiving directions from the user with
the locator out of sight of the line and the diver.
Because of rapid signal loss and a combination of large
surface area and very conductive soil there may be
problems applying a suitable signal for tracing a large
© 2015 Radiodetection Ltd
34
diameter pipe. It may be necessary to use a high power,
low frequency tracing signal.
It is necessary to define a method of recording target line
position and depth before starting work in the boat or on
the seabed.
Figure 8.12: Using a submersible antenna
WARNING: Only properly licensed and experienced
divers should attempt to use the submersible antenna.
© 2015 Radiodetection Ltd
35
Section 9 - Fault-finding
9.1 About fault-finding
RD7100PL and RD7100TL locators are capable of
locating cable to ground faults caused by damaged
cable sheaths and can also be used to locate damage to
insulation on pipelines. This process is known as FaultFinding and uses specific fault find signals applied to the
target.
Fault find signals can only be applied using Direct
Connection method.
The A-frame accessory is used to locate cable sheath
faults on power and telecom cables or insulation faults
on pipelines. To use Fault-Find you will need the
following equipment:

RD7100 locator

Tx-5 or Tx-10 transmitter

Accessory A-frame with connecting lead

Direct connection lead and earth stake
There are 2 types of signals that can be used for fault
finding:

8K Fault Find – useful for sheath faults on cables
but can also be used on pipelines over shorter
distances.
Reference readings
It is good practice to obtain a reference reading from the
ground stake before you attempt to locate a fault on a
target line. Reference readings help to provide the
following information:

Severity of fault

Survey interval
Before taking the reference reading set up the
transmitter and locator as follow:
On the transmitter:
1
Select a fault-finding frequency using the
key
2
Use the
or
keys to increase or decrease the
output signal level
3
If required you can use the BOOST setting if the fault
is located on a high resistance cable or if the cable
is long
WARNING! By selecting 8KFF the transmitter will
have the ability to output high voltages and a high
voltage warning icon will appear on the transmitter’s
LCD.
On the locator:
9.2 Preparation
4
Connect one end of the connection lead to the Aframe socket
Using RD7100 standard locating techniques locate the
cable or pipe for a short distance and trace and mark its
route. Remove all earth bonds from the line to be traced
during the fault-finding survey. If there are any earth
bonds along the path the fault find signal may direct the
user to this location as this will be the preferred path for
the fault find signal to leak away into the ground and may
result in the fault not being located.
5
Connect the other end to the locator accessory
socket
6
The locator will automatically recognize the A-frame
and display the A-frame icon on the LCD
7
Select a fault-finding frequency using the
Connecting the transmitter
Position the locator approximately 2m (6 feet) from the
ground stake and push the A-frame spikes into the
ground with the green spike towards the ground stake
1
With the transmitter switched off connect the Direct
Connection lead into the transmitter accessory
socket
2
Clip the red connection lead to the cable, cable
sheath or pipe ensuring that the area around the
connection is clean and that a positive connection is
achieved
3
Extend the black connection lead as far away as
possible at 90° to the probable route of the target
cable and clip the connector to the ground stake
ensuring that a positive connection is achieved
NOTE: Always connect the black connection lead to a
ground stake and not a water pipe or buried cable, as
these may carry the signal.
© 2015 Radiodetection Ltd
key
Obtaining a reference reading:
Attach the locator to the A-frame by the retention hook.
(If you are holding the locator separately, make sure that
the locator is in line with the A-frame and is pointing
towards the green spike.) The fault direction arrow
should be pointing away from the ground stake. If it is
not, make sure that the transmitter is connected correctly
(red connector to the cable and black to the ground
stake).
Take the dB reading and keep it for reference. If there is
a single fault on the cable, it will be approximately the
same dB value as the reference reading.
NOTE. To establish how often to take readings on the
cable or pipe, move away from the ground stake and
take further readings until the arrow has difficulty in
36
locking and the dB reading is low. Measure the distance
that the locator is now away from the ground stake. This
is the distance that you can safely use between taking
readings on the cable or pipe to ensure that you do not
miss the fault.
9.3 How to find a fault
Starting from the transmitter, walk along the cable or
pipe route pushing the A-Frame spikes into the ground
with the green spike pointing away from the transmitter.
Where there are no faults the dB reading will be low and
the direction arrow may flicker forward and back.
NOTE: Flickering arrows may also indicate that you may
be too far away from the fault or ground stake (or both)
for the locator to lock on.
locate mode. To use alternative antenna modes, press
the
key to step through available antenna modes. To
get back to fault find mode step through all available
antenna modes until the locator goes back to fault find
mode.
Note: While the A-Frame is connected to the locator,
depth and current measurements will not be available. If
depth or current measurements are required, remove
the A-Frame lead from the locator.
As a fault is approached the Fault-Find direction arrow
will lock on to the fault signal, point forward and the dB
readings will increase. When the fault is passed the
arrow will point back towards the transmitter. Take
readings at smaller survey intervals to determine the
exact point of the fault.
When the A-frame is directly over the fault the dB
reading will drop as shown opposite.
NOTE: The values given are for illustration purposes
only and may not be the same as those obtained in other
situations.
To pinpoint the fault, turn the A-frame 90° to the cable or
pipe and Fault-Find until the exact point is found. Where
the arrow direction changes the center line of the Aframe is now directly over the fault.
Figure 9.1: Cable sheath fault-finding
If you are trying to locate high resistance faults or there
is a long distance between faults, carry on with the
survey and the locator will lock on when you get closer
to the fault.
Mark the ground to show the position of the fault. Find
the maximum dB reading in front of the fault by pushing
the A-frame into the ground at small intervals. Note the
dB reading. If the reading is approximately the same as
the reference reading, you can assume that there is only
one fault. If the reading is less than the reference
reading, keep surveying the cable for other faults.
NOTE: If the cable or pipe runs under a road, use the
equipment as normal on the road surface as it can
sometimes detect signals when working on blacktop,
concrete, or paved surfaces. If necessary, try wetting the
road surface. Pouring a very small amount of water
around the bottom of the A-frame spikes before each
Fault-Find will generally ensure a good ground
connection.
Figure 9.2: Locating faults with the locator and A-frame
Take readings at the survey intervals determined by the
reference reading. To locate the cable or pipe while
using the fault find signal during a Fault-Find survey,
press the
key once and the locator will switch to Peak
© 2015 Radiodetection Ltd
NOTE: If the cable or pipe runs under a paved surface,
the fault can often be pinpointed by fault finding in the
grass / soil adjacent to the paving. Reduce the distance
between placing the A-frame spikes in the ground to
allow for the increased distance to the actual fault
position.
37
Section 10 - Appendices
10.1 Care and maintenance
Regularly check your locator for correct operation using
eCert (see section 10.6) and the on-board Self-Test.
The RD7100 locator and transmitter are robust, durable
and weatherproof. However you can extend your
equipment’s life by following these care and
maintenance guidelines.
NOTE: Service by non-approved service centers or
operators may void the manufacturer’s warranty.
General
Store the equipment in a clean and dry environment.
Ensure all terminals and connection sockets are clean,
free of debris and corrosion and are undamaged.
Radiodetection products, including this guide, are under
continuous development and are subject to change
without notice. Go to www.radiodetection.com or contact
your local Radiodetection representative for the latest
information regarding the RD7100 locator or any
Radiodetection product.
Do not use this equipment when damaged or faulty.
10.2 Enhanced Self-Test
Batteries and power supply
Use only good quality Alkaline or NiMH batteries.
When using an AC adapter, use only Radiodetection
approved adapters.
Only use Radiodetection approved Li-Ion battery packs.
Cleaning
WARNING! Do not attempt to clean this equipment
when it is powered or connected to any power source,
including batteries, adapters and live cables.
RD7100 locators incorporate an Enhanced Self-Test
feature. In addition to the typical checks for display and
power functions, the RD7100 applies test signals to it’s
locating circuitry during a Self-Test to check accuracy
and performance.
We recommend that a self-test is run at least weekly, or
before each use.
Running a Self-Test
Ensure the equipment is clean and dry whenever
possible.
As the Self-Test tests the integrity of the locate circuity,
it is important that it is carried out away from large
metallic object such as vehicles, or strong electrical
signals. To run a Self-Test:
Clean with a soft, moistened cloth.
1
Press the
If using this equipment in foul water systems or other
areas where biological hazards may be present, use an
appropriate disinfectant.
2
Scroll to the INFO menu using the
3
Press the
Do not use abrasive materials or chemicals as they may
damage the casing, including the reflective labels.
4
Select TEST using the
5
Press the
key to select YES
6
Press the
key to begin the Self Test
Disassembly
7
Do not attempt to disassemble this equipment under any
circumstances. The locator and transmitter contain no
user serviceable parts.
Once the Self-Test is completed, the result (PASS
or FAIL) will be displayed.
8. Restart the locator using the
Disassembly may damage the equipment and or reduce
its performance and may void the manufacturer’s
warranty.
10.3 RD Manager™
key to enter the menu
or
keys
key to enter the INFO menu
or
keys.
Do not use high pressure hoses.
Service and maintenance
The locator and transmitter are designed to minimize the
requirement for regular calibration. However, as with all
safety equipment, it is recommended (and may be
required by law) that they are serviced at least once a
year, either at Radiodetection or a Radiodetectionapproved repair center.
© 2015 Radiodetection Ltd
key
RD Manager is the RD7100 Locator PC companion and
allows you to manage and customize your locator. It also
allows software upgrades to both the locator and
transmitter.
You can use RD Manager to register your products to
extend the warranty to a total of 3 years (see Section
10.4), setup your locator by performing a number of
maintenance tasks, such as setting date and time,
activating and de-activating active frequencies, setting
38
up custom frequencies, or setting-up functions like
CALSafe or StrikeAlert.
RD Manager is also used to retrieve and analyze
surveys data and internal logged data (logging and GPS
models only).
RD Manager is compatible PCs running with Microsoft
Windows XP, Windows 7, Windows 8 and Windows 8.1.
10 Indicate if you do not wish to receive e-mail or
other marketing material with new product
information or special offers and promotions
related to its product range
10.5 Upgrading software
For more information about RD Manager refer to the RD
Manager operation manual.
From time to time, Radiodetection may release software
upgrades to enhance features and improve performance
of the RD7100 locator or transmitter.
To Obtain RD Manager:
Software upgrades are free of charge.
1
Go to www.radiodetection.com/RDManager
2
Follow the instructions
10.4 Warranty and extended
warranty
RD7100 locators and transmitters are covered by a 1
year warranty as standard.
Customers can extend the warranty period to a total of 3
years by registering their products (locators and
transmitters) within 3 months from purchase.
You can check if your products are up-to-date or
upgrade them by using the RD Manager software
upgrade screen. Refer to the RD Manager operation
manual for further information.
E-mail alerts and notification of new software releases
are sent to all registered users.
NOTE: To upgrade your software you need to have
created an account using RD Manager and have a live
internet connection. An optional Radiodetection supplied
power source may be required to update your transmitter
software.
Registration is performed using the RD Manager PC
software. See Section 10.3.
10.6 eCert
From time to time Radiodetection may release new
software to improve the performance or add new
functionalities to his products. By registering user will
benefits from subscribing to e-mail alerts advising about
any new software and special offers related to its product
range.
The RD7100 locator should be regularly checked to
ensure its correct operation.
Users will be able to opt out at any moment from
receiving software and technical notifications or just from
receiving marketing material.
To run eCert, the locator should be connected to an
internet-enabled PC, on which the RD Manager software
is installed. Additional eCert credits may be required and
purchased.
Registering using e-mail
If you have problem in obtaining and installing the RD
Manager software you can also register your product(s)
by sending an e-mail to rd-support@spx.com.
You will need to provide the following details:
1
Date of Purchase
2
Serial Number of each of your qualifying products
(RD7100 locators and transmitters)
3
Your e-mail address
4
Your Company name
5
Contact Name
6
Address
7
Telephone Number
8
Country of residence
9
Indicate if you do not wish to receive e-mail alerts
advising about any new software release
© 2015 Radiodetection Ltd
eCert provides a thorough test of the RD7100’s locating
circuitry and marker transceiver, and supplies a
Radiodetection Calibration Certificate when a positive
test result is obtained.
Refer to the RD Manager operation manual for further
details.
NOTE: eCert is not presently available for transmitters.
10.7 Time and date error
messages
RD7100 usage logging and GPS models feature an
internal clock which is used to time and date survey
measurements, the 1/second internal logging and for the
CALSafe feature.
Every time the locator is switched on, it performs a check
to verify its correct operation.
In the unlikely event of an issue with this clock the
system will emit a warning audio tone and display the
word ERROR, followed by a 3 digit error code.
Make a note of this code and contact your nearest
service center or Radiodetection representative.
39
10.8 List of supported accessories
Locator Accessories
High Gain Stethoscope
10/RX-STETHOSCOPE-HG
Small Stethoscope
10/RX-STETHOSCOPE-S
Large Stethoscope
10/RX-STETHOSCOPE-L
640 / 512Hz Submersible DD Antenna (10m Cable)
10/RX-SUBANTENNA-640
8kHz Submersible DD Antenna (10m Cable)
10/RX-SUBANTENNA-8K
Headphones
10/RX-HEADPHONES
A-Frame (includes A-Frame Lead)
10/RX-AFRAME
A-Frame Bag
10/RX-AFRAME-BAG
A-Frame replacement lead
10/RX-AFRAME-LEAD
2" (50mm) Locator signal clamp
10/RX-CLAMP-50
4" (100mm) Locator signal clamp
10/RX-CLAMP-100
5” (130mm) Locator signal clamp
10/RX-CLAMP-130
Transmitter Accessories
Live Plug Connector
10/TX-LPC-XX
XX= US, UK, EU
Live Cable Connector (with Crocodile clips)
10/TX-LCC
2" (50mm) Transmitter Signal Clamp
10/TX-CLAMP-50
4" (100mm) Transmitter Signal Clamp
10/TX-CLAMP-100
5" (130mm) Transmitter Signal Clamp
10/TX-CLAMP-130
8.5” (215mm) Transmitter Signal Clamp
10/TX-CLAMP-215
Earth Reel
10/TX-EARTHLEAD
Mains power AC transformer to 12V DC
10/TX-MPSU-XX
XX= US, UK, EU, AU, CN
Tx Direct Connection Lead
10/TX-DC-LEAD
Tx DC Lead, Insulated Plug/Socket
10/TX-DC-LEAD-INS
Earth Stake
10/TX-EARTHSTAKE
© 2015 Radiodetection Ltd
40
Transmitter Connection Kit
Contains Earth Reel, Earth Stake, Connection Leads
and Magnet
10/TX-CONNECTION-KIT
Signal Clamp Extension Rod
10/TX-CLAMP-EXTROD
12V Car Power Lead with Isolation Transformer
10/TX-APSU
Tx-121 Isolation Transformer
10/TX121-XX
(for locating 3-phase core-core shorts)
XX= DE, EN, FR, NL
Accessories for tracing or locating non-conductive utilities
Standard Sonde 33kHz (device shown), depth up to
5m
10/SONDE-STD-33
Standard Sonde 8kHz, depth up to 5m
10/SONDE-STD-8
Standard Sonde 512Hz, depth up to 5m
10/SONDE-STD-512
Sewer Sonde 33kHz, depth up to 8m
10/SONDE-SEWER-33
External Shell for heavy-duty Applications (dia. as
Sewer Sonde)
10/SONDE-SEWER-SHELL
Super Sonde 33kHz, depth up to 15m
10/SONDE-SUPER-33
Slim Sonde 33kHz, depth up to 3.5m
10/SONDE-SLIM-33
Slim Sonde Plain End Cap
10/SONDE-SLIM-ENDCAP
S6 Microsonde kit
10/SONDE-MICRO-33
Pack of 10 × batteries for S6 Microsonde
10/SONDE-MICROBATPACK
S9 MiniSonde
10/SONDE-MINI-33
Pack of 10 × batteries for S9 MiniSonde
10/SONDE-MINI-BATPACK
S13 Sonde Kit (includes two end caps, two batteries
and case)
10/SONDE-S13-33
Pack of ten spare batteries for S13 Sonde
10/SONDE-S13-BATPACK
S18A Sonde 33kHz
10/SONDE-S18A-33
S18B Sonde 33kHz
10/SONDE-S18B-33
Bendi sonde with M10 male end cap (512Hz
continuous)
10/SONDE-BENDI-512
Pack of 5 AA batteries
10/SONDE-BENDIBATPACK
FlexiTrace 50m (Tx powered pushrod transmitter)
10/TRACE50-XX
FlexiTrace 80m (Tx powered pushrod transmitter)
10/TRACE80-XX
XX = D, F, GB, NL
© 2015 Radiodetection Ltd
41
4.5mm 50m Flexrod
10/FLEXRODF50-4.5
4.5mm 80m Flexrod
10/FLEXRODF80-4.5
6.7mm 50m Flexrod
10/FLEXRODF50-7
6.7mm 100m Flexrod
10/FLEXRODF100-7
6.7mm 150m Flexrod
10/FLEXRODF150-7
9mm 60m Flexrod
10/FLEXRODF60-9
9mm 120m Flexrod
10/FLEXRODF120-9
Power Options
Locator power accessories and spares
Li-Ion rechargeable battery mains kit
(includes mains charger)
10/RX-MBATPACK-LIONK-XX
Replace XX with US, UK, EU
or CN
Li-Ion automotive charger
10/RX-ACHARGER-LION
Li-Ion mains charger
10/RX-MCHARGERLION-XX
Replace XX with US, UK, EU
or CN
Li-Ion rechargeable battery pack (no charger)
10/RX-BATPACK-LION
2 D-Cell battery tray
10/RX-2DCELL-TRAY
Transmitter power accessories and spares
Mains PSU
Li-Ion rechargeable battery mains kit (Includes mains
charger)
Li-Ion rechargeable battery full kit (Includes mains and
automotive charger)
10/TX-MPSU-XX
10/TX-MBATPACK-LIONK-XX
Replace XX with US, UK, EU
or CN
10/TX-MABATPACKLION-K-XX
Replace XX with US, UK, EU
or CN
Li-Ion automotive charger
10/TX-ACHARGER-LION
Li-Ion mains charger
10/TX-MCHARGERLION-XX
Replace XX with US, UK, EU
or CN
Replacement Li-Ion battery pack
© 2015 Radiodetection Ltd
10/TX-BATPACK-LION
42
Transport and Storage Accessories
Soft carry bag
10/LOCATORBAG
Flight case
10/RD7K8KCASE
Hard case
10/RD7K8KCASE-USA
Miscellaneous
Safety equipment
Warning triangle
10/WARNING-TRIANGLE
Calibration Certificates, Remote Calibration and PC Software
Locator Calibration Certificate, per unit
(request with initial locator order)
97/RX-CALCERT
eCert™ Calibration Credit
10/RX-ECERT
RDManager™
Check product documentation for details
Warranty Registration (for free software upgrades)
© 2015 Radiodetection Ltd
Visit www.radiodetection.com/rdmanager
Visit www.radiodetection.com
43
RD7100
P r e c i s i o n M u lt i f u n ct i o n
Ca b l e & P i p e Lo cato r
Global locations
USA
E u rope
A s i a - Pac i f i c
Spx Global Headquarters
Radiodetection Ltd. (UK)
Radiodetection (Asia-Pacific)
13320 Ballantyne Corporate Place
Western Drive, Bristol BS14 0AF, UK
Room 708, CC Wu Building
Charlotte, NC 28277, USA
Tel: +44 (0) 117 976 7776
302-308 Hennessy Road, Wan Chai
Tel: +1 704 752 4400
Fax: +44 (0) 117 976 7775
Hong Kong SAR, China
www.spx.com
rd.sales.uk@spx.com
Tel: +852 2110 8160
www.radiodetection.com
Fax: +852 2110 9681
Radiodetection
rd.sales.asiapacific@spx.com
28 Tower Road, Raymond, Maine 04071, USA
Radiodetection (France)
Tel: +1 (207) 655 8525
13 Grande Rue, 76220, Neuf Marché, France
Toll Free: +1 (877) 247 3797
Tel: +33 (0) 2 32 89 93 60
Radiodetection (China)
Fax: +1 (207) 655 8535
Fax: +33 (0) 2 35 90 95 58
Room 5-10, Workshop 4
rd.sales.us@spx.com
rd.sales.fr@spx.com
No. 10 Zhenggezhuang Village
www.radiodetection.com
http://fr.radiodetection.com
Beiqijia Town, Changping District
Pearpoint
Radiodetection (Benelux)
39-740 Garand Lane, Unit B
Industriestraat 11
Palm Desert, CA 92211, USA
7041 GD ’s-Heerenberg, Netherlands
Tel: +1 800 688 8094
Tel: +31 (0) 314 66 47 00
Tel: +1 760 343 7350
Fax: +31 (0) 314 66 41 30
Fax: +1 760 343 7351
rd.sales.nl@spx.com
Radiodetection (Australia)
pearpoint.sales.us@spx.com
http://nl.radiodetection.com
Unit H1, 101 Rookwood Road,
www.radiodetection.com
Radiodetection (Germany)
Radiodetection (Canada)
Groendahlscher Weg 118
344 Edgeley Boulevard, Unit 34
46446 Emmerich am Rhein, Germany
Concord, Ontario L4K 4B7, Canada
Tel: +49 (0) 28 51 92 37 20
Tel: +1 (905) 660 9995
Fax: +49 (0) 28 51 92 37 520
Toll Free: +1 (800) 665 7953
rd.sales.de@spx.com
Fax: +1 (905) 660 9579
http://de.radiodetection.com
www.radiodetection.com
Beijing 102209, China
Tel: +86 (0) 10 8178 5652
Fax: +86 (0) 10 8178 5662
rd.service.cn@spx.com
http://cn.radiodetection.com
Yagoona NSW 2199, Australia
Tel: +61 (0) 2 9707 3222
Fax: +61 (0) 2 9707 3788
rd.sales.au@spx.com
www.radiodetection.com
rd.sales.ca@spx.com
www.radiodetection.com
Radiodetection is a leading global developer and supplier of test equipment used by utility companies to help install, protect and maintain their infrastructure networks.
Radiodetection is a unit of SPX (NYSE: SPW), a global multi-industry manufacturing company. With headquarters in Charlotte, N.C., SPX has 14,000 employees in more than
35 countries worldwide. Visit www.spx.com.
© 2015 Radiodetection Ltd. All rights reserved. Radiodetection is a subsidiary of SPX Corporation. SPX, the green “>” and “X” are trademarks of SPX Corporation, Inc. Radiodetection,
and RD7100 are registered trademarks of Radiodetection in the United States and/or other countries. Trademarks and Notices. The following are trademarks of Radiodetection:
RD7100, eCert, TruDepth, SideStepauto, RD Manager, Peak+, StrikeAlert, CALSafe. The design of the RD7100 locators and transmitters has been registered. The design of the 4
chevrons has been registered. The Bluetooth word, mark and logos are registered trademarks of Bluetooth SIG, Inc. and any use of such trademarks by Radiodetection is under license.
Due to a policy of continued development, we reserve the right to alter or amend any published specification without notice. This document may not be copied, reproduced, transmitted,
modified or used, in whole or in part, without the prior written consent of Radiodetection Ltd.