Megger digiPHONE+2 User manual

1
digiPHONE+2
digiPHONE+2 NT
digiPHONE+2 NTRX
USER GUIDE
Issue: 01 (01/2019) - EN
Article number: 86599

2

Consultation with Megger
3
Consultation with Megger
The present system manual has been designed as an operating guide and for
reference. It is meant to answer your questions and solve your problems in as fast and
easy a way as possible. Please start with referring to this manual should any trouble
occur.
In doing so, make use of the table of contents and read the relevant paragraph with
great attention. Furthermore, check all terminals and connections of the instruments
involved.
Should any question remain unanswered or should you need the help of an authorized
service station, please contact:
Megger Limited Seba Dynatronic
Mess- und Ortungstechnik GmbH
Archcliffe Road
Kent CT17 9EN
T: [phone]
F: [phone]
E: [email protected]om
Dr.-Herbert-Iann-Str. 6
D - 96148 Baunach
T: [phone] – 0
F: [phone]
E: [e-mail]
Hagenuk KMT
Kabelmesstechnik GmbH
Megger USA
Röderaue 41
D - 01471 Radeburg / Dresden
T: [phone] – 0
F: [phone]
E: [e-mail]
Valley Forge Corporate Centre
2621 Van Buren Avenue
Norristown, PA 19403 USA
T: [phone]
F: [phone]
Megger
All rights reserved. No part of this handbook may be copied by photographic or other means unless Megger
have before-hand declared their consent in writing. The content of this handbook is subject to change without
notice. Megger cannot be made liable for technical or printing errors or shortcomings of this handbook.
Megger also disclaims all responsibility for damage resulting directly or indirectly from the delivery, supply, or
use of this matter.

Terms of Warranty
4
Terms of Warranty
Megger accept responsibility for a claim under warranty brought forward by a customer
for a product sold by Megger under the terms stated below.
Megger warrant that at the time of delivery Megger products are free from manufacturing
or material defects which might considerably reduce their value or usability. This
warranty does not apply to faults in the software supplied. During the period of warranty,
Megger agree to repair faulty parts or replace them with new parts or parts as new (with
the same usability and life as new parts) according to their choice.
This warranty does not cover wear parts, lamps, fuses, batteries and accumulators.
Megger reject all further claims under warranty, in particular those from consequential
damage. Each component and product replaced in accordance with this warranty
becomes the property of Megger.
All warranty claims versus Megger are hereby limited to a period of 12 months from the
date of delivery. Each component supplied by Megger within the context of warranty will
also be covered by this warranty for the remaining period of time but for 90 days at
least.
Each measure to remedy a claim under warranty shall exclusively be carried out by
Megger or an authorized service station.
This warranty does not apply to any fault or damage caused by exposing a product to
conditions not in accordance with this specification, by storing, transporting, or using it
improperly, or having it serviced or installed by a workshop not authorized by Megger.
All responsibility is disclaimed for damage due to wear, will of God, or connection to
foreign components.
For damage resulting from a violation of their duty to repair or re-supply items, Megger
can be made liable only in case of severe negligence or intention. Any liability for slight
negligence is disclaimed.
Since some states do not allow the exclusion or limitation of an implied warranty or of
consequential damage, the limitations of liability described above perhaps may not
apply to you.

Contents
5
Contents
Consultation with Megger...............................................................................................3
Terms of Warranty ...........................................................................................................4
Contents ...........................................................................................................................5
1Basic notes .......................................................................................................7
2Technical description ......................................................................................9
2.1 System description .............................................................................................9
2.2 Technical data ..................................................................................................13
2.3 Connections and controls on the indicator unit ................................................16
3Basic operation of the indicator unit............................................................17
4Pinpointing Cable Faults in “Digiphone” Mode ...................................19
4.1 Preparatory Measures......................................................................................19
4.1.1 Starting Up the Surge Wave Generator ...........................................................19
4.1.2 Preparing the Sensor .......................................................................................20
4.1.3 Connecting the Sensor and Headphones to the Indicator Unit........................22
4.2 General information on operation.....................................................................23
4.2.1 Adjusting the Settings.......................................................................................24
4.2.1.1 Adjusting the Basic Settings.............................................................................25
4.2.1.2 Adjusting the Measurement Settings ...............................................................27
4.3 General information on locating faults with the device.....................................29
4.3.1 Interpreting the measured value and direction data.........................................29
4.3.2 Volume Settings ...............................................................................................31
4.3.3 Switching between automatic and manual trigger sensitivity setting ...............33
4.4 Procedure for fault detection ............................................................................35
4.4.1 Tracing the Line................................................................................................35
4.4.2 Approaching the Fault ......................................................................................36
4.4.3 Procedure.........................................................................................................37
4.5 Completing the Work........................................................................................39
5Line and probe location in “Ferrolux” mode ........................................40
5.1 Connecting the sensor and headphones to the display unit ............................40
5.2 General information about operation................................................................41
5.2.1 Entering settings...............................................................................................42
5.2.1.1 Entering basic settings .....................................................................................43
5.2.1.2 Entering measurement settings .......................................................................45
5.2.2 Controlling sensitivity........................................................................................48
5.2.3 Recording and managing measurement series ...............................................49
5.3 Line location and tracing using the iFS receiver ..............................................51
5.3.1 Basics for using the iFS receiver......................................................................51
5.3.2 Preparation.......................................................................................................52
5.3.3 Locating the line ...............................................................................................54

Contents
6
5.3.4 Clear identification of the line on the basis of the current flow direction (only
possible with SignalSelect-modulated signal)..................................................56
5.3.5 Depth measurement.........................................................................................58
5.3.6 Line tracing.......................................................................................................61
5.3.7 Terrain examination..........................................................................................63
5.4 Locating probes................................................................................................64
5.5 Locating faults and sleeves..............................................................................67
5.5.1 Locating faults and sleeves using the minimum turbidity method....................67
5.5.2 Locating faults and sleeves using the “Twisted-Field” method ........................68
5.6 Cable identification using the reader coil IFA (optional)...................................70
5.7 Switching off the indicator unit .........................................................................72
6Pinpointing Sheath Faults in „ESG“ Mode ...........................................73
6.1 Preparatory Measures......................................................................................73
6.1.1 Tracing the Line................................................................................................73
6.1.2 Starting Up the DC Impulse Generator ............................................................73
6.1.3 Connecting the Earth Spikes............................................................................74
6.1.4 Turning On the Indicator Unit ...........................................................................76
6.1.5 Adjusting the Settings.......................................................................................78
6.1.5.1 Adjusting the Basic Settings.............................................................................79
6.1.5.2 Adjusting the Measurement Settings ...............................................................80
6.2 Approaching the Fault ......................................................................................82
6.2.1 General Notes ..................................................................................................82
6.2.2 Procedure.........................................................................................................84
6.3 Completing the Work........................................................................................86
7Pairing with Bluetooth accessories .............................................................87
8Using the Ferrolux management software on PC.......................................90
8.1 Exporting and deleting measurement series from the indicator unit................91
8.2 Updating the firmware ......................................................................................92
9Storage and Transport...................................................................................93
10 Maintenance and Care ...................................................................................94

Basic notes
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1Basic notes
This manual contains basic instructions for the initial use and operation of the device.
For this reason, it is important to ensure that the manual is always available to
authorised and trained operating personnel. Operating personnel should read the
manual thoroughly. The manufacturer will not be held liable for any injury or damage to
personnel or property through failure to observe the safety precautions contained in this
manual.
The specific standards and regulations in each country must also be observed!
The following signal words and symbols are used in this manual and on the product
itself:
Signal word /
symbol
Description
DANGER Indicates a potential hazard which will result in death or serious
injury if not avoided.
WARNING Indicates a potential hazard which may result in death or serious
injury if not avoided.
CAUTION Indicates a potential hazard which may result in moderate or
minor injury if not avoided.
NOTICE Indicates a potential hazard which may result in material damage
if not avoided.
Serves to highlight warnings and safety instructions.
As a warning label on the product it is used to draw attention to
potential hazards which have to be avoided by reading the
manual.
Serves to highlight warnings and safety instructions that explicitly
indicate the risk of an electric shock.
Serves to highlight important information and useful tips on the
operation of the device/system. Failure to observe may lead to
unusable measurement results.
It is important to observe the generally applicable electrical regulations of the country in
which the device will be installed and operated, as well as the current national accident
prevention regulations and internal company directives (work, operating and safety
regulations).
Use genuine accessories to ensure system safety and reliable operation. The use of
other parts is not permitted and invalidates the warranty.
This system and its peripheral equipment may only be operated by trained or instructed
operating personnel. Anyone else must be kept away.
The system may only be installed by a specialist electrician. DIN VDE 0104 (EN 50191),
DIN VDE 0105 (EN 50110) and the German accident prevention regulations (UVV)
define a specialist electrician as someone whose knowledge, experience and familiarity
with the applicable regulations enables him to recognise potential hazards.
Safety precautions
Labelling of safety
instructions
Working with products
from Megger
Operating staff

Basic notes
8
Repair and maintenance work may only be performed by Megger or authorised service
partners. Megger recommends having the system tested and maintained at a Megger
service centre once per annum.
Megger also offers its customers on-site service. Please contact your service centre as
needed.
The system corresponds with the regulations of the following European directives:
Directives: EMC Directive (204/108/EC)
Standards: EMC Technical safety
EN 55011, EN 61000-6-4 ,
EN 61000-4-2, EN 61000-4-3,
EN 61000-4-4, EN 61000-4-8
EN 61010-1, EN 50249, GPSG
This product contains protected software, which is licensed under the General Public
License (GPL) and the Lesser General Public License (LGPL). This certifies your right to
request the source code for these software components. You can find detailed
information on the GPL/LGPL licenses under www.gnu.org.
Images from the Icons8 library (www.icons8.de) are also used within the software.
The Bluetooth®word mark and logos are registered trademarks owned by Bluetooth
SIG, Inc. and any use of such marks is under license.
Repair and
maintenance
Declaration of
conformity (CE)
Use of third party
software
Used trademarks

Technical description
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2Technical description
2.1 System description
The indicator unit can be used for different measuring tasks depending on the
measuring accessories connected. Which of the following sensors and antennas
actually belong to the delivery (see page 9) depends on the set purchased:
Surge wave receiver DPP-SU2
for the accurate pinpointing of
flashover faults in buried cables
A discharge generator feeds surge voltage pulses into the end
of the
faulty wire. These cause voltage arc-
overs at the fault location. The
resulting flashover noise propagates in the ground and is recorded with
the surge wave receiver on the surface. The distance to the fault
location can be calculated using either t
he volume of the flashover noise
or the time difference between the arrival of the magnetic pulse and the
flashover noise.
Audio frequency receiver iFS
for route tracing and fault location on
buried metallic lines.
With the aid of the antennas, the al
ternating current flowing in metallic
lines can be recorded, converted into a signal and transferred to the
indicator unit.
In this way, as well as metallic lines which are transmitting
a signal from a suitable transmitter (491 Hz … 33 kHz), cables that ar
e
operational (50 / 60 Hz) and pipelines carrying a current of 100
Hz /
120
Hz current for protection from corrosion can be located and traced.
For lines carrying an active signal generated by an audio frequency
generator not only the path but also the lay
ing depth, the current
strength and the direction of signal flow (in case of a SignalSelect
encoded signal) can be determined.
Earth spikes for accurate pinpointing of sheath faults on plastic
insulated PE and VPE medium voltage cables
Sheath faults are pinpointed using the step voltage method. The
measuring current flowing into the ground at the fault location forms a
potential gradient forms at the point of escape, which is measured using
earth spikes and the downstream indicator unit. The step voltage rises
when both earth spikes are situated in front of the fault position. If the
fault position is passed by, the step voltage polarity changes, which then
subsides again the further away you go.
Reader coil IFA for identifying a cable among several ac
cessible
cables
As with the iFS
receiver, the reader coil is used to detect audio
frequency signals within the frequency range of 50 Hz to 33 kHz. In
contrast to the receiver, the coil is applied directly onto the accessible
cable, thus increasing the meas
urement accuracy. Thanks to
SignalSelect compatibility, this method also ensures the reliable
identification of a cable on which a SignalSelect signal is transmitted
(e.g. when a cluster of cables is exposed after excavation work).
Description

Technical description
10
Depending on the connected measuring accessories, the indicator unit starts in different
modes, which are characterized by the following features:
Ferrolux mode -
•Different locating methods (minimum, maximum, super-maximum)
•Display of the path of the line
•Acoustic signal with TrueAudio
•Coded transmit signal (SignalSelect) for clear line identification
•Automatic depth and current measurement
•Measurement value and GPS data storage
•Locating of faults and joints using minimum turbidity
Digiphone mode -
•Trend indicator
•Cable compass indicates the orientation of the line
•Outstanding acoustic qualities for quick and reliable fault location
•High level of accuracy due to selective recording of magnetic fields
•Very stable sensor
•Trigger thresholds for acoustic and magnetic channels set fully automatically
•Possibility to switch to manual trigger threshold adjustment
•Patented extraneous noise reduction
•Automatic proximity mute
•Volume limiter which can be switched on and off
•Height-adjustable telescopic handle for sensor
•Patented fault direction indicator (fault arrow)
ESG mode -
•Automatic sensitivity adjustment to the voltage
•Patented, automatic zero point reference with elimination of DC voltage
interference
•Automatic synchronization to generator speed
•Wide measurement range (1 µV … 200 V) due to high level of sensitivity
•Suppression of interference (50/60 Hz, 16⅔ Hz, 100/120 Hz)
Features

Technical description
11
Depending on the set purchased, the scope of delivery of the system includes at least
the following components:
Component digiPHONE+2 digiPHONE+2 NT digiPHONE+2
NTRX
Item number
Indicator unit 1012816
Digiphone sensor and
accessories
DPP-SU sensor 1012815
Telescopic handle 2012701
Sensor cable 890026548
Base plate with bitumen 2012633
Base plate 899006924
Measuring rod 18 mm 118303027
Measuring rod 75 mm 890026252
3-point foot 118303026
Earth spikes and accessories
2 earth spikes 128309680
Connection cable red, 2 m 128309356
Connection cable black, 2 m 128309357
Contact sponge 128308944
Ferrolux receiver and
accessories
iFS receiver 1010472
Receiver cable 90025743
Headphones
Wired headphones 90026322
Bluetooth headphones 90033686
Bags
Bag „Digiphone“ 1013130
Bag „3in1“ 1013131
Other accessories
6 x AA batteries, type IEC R6
(alkaline manganese) 892334291
Manual 86599
Check the contents of the package for completeness and visible damage right after
receipt. In the case of visible damage, the device must under no circumstances be taken
into operation. If something is missing or damaged, please contact your local sales
representative.
Included in delivery
Check contents

Technical description
12
Missing sensors can be easily re-ordered via the following article numbers for the
digiPHONE+2 and digiPHONE+2 NT sets:
Sensor Description Item number
Ferrolux receiver
unit incl.
accessories
Consisting of sensor iFS, connection cable and
transport bag.
1013132
ESG earth spikes
incl. accessories
Consisting of 2 earth spikes, 2 connecting
cables and transport bag.
Caution: To retrofit this set, the indicator unit
must be sent to the manufacturer.
1011722
The following optional accessories can also be ordered from Megger sales:
Accessory Description Item number
Identification
antenna IFA
Mini antenna for cable identification 1011682
Wired
headphones
90026322
Bluetooth
headphones
90033686
GPS receiver set Consisting of the Holux GPS receiver M 1200
and a fitting carabiner with a lanyard
1013171
Accumulator pack Rechargeable battery pack with 2 Li-ion
batteries (9V/650 mAh), suitable battery
compartment and charger
2013006
Measuring spike
for DPP-SU
sensor, 130 mm
Measuring spike for use in very loose ground 899006926
Measuring spike
for DPP-SU
sensor, 300 mm
Measuring spike for use in extremely loose
ground (e.g. sand)
890026254
Retrofitting of sensors
Optional accessories

Technical description
13
2.2 Technical data
The indicator unit is defined by the following technical parameters:
Parameter Value
Power supply 6 x AA batteries, type IEC R6 (alkaline manganese)
Operating time >15 hours
Voltmeter
•Input resistance
•Measurement range
•Sensitivity
(Only with ESG mode enabled)
650 kΩ
max. 200 V
<5 μV
Operating temperature -20 °C – 55 °C
Operating humidity Max. relative humidity 93% at 30 °C
Storage temperature -30 °C – 70 °C
Display TFT colour display with 320 x 240 pixels
Headphone connection Via 3.5 mm jack socket or Bluetooth interface
Weight <0.9 kg
Dimensions 225 mm x 65 mm x 100 mm (W x H x D)
IP protection class (in
accordance with IEC 60529
(DIN VDE 0470-1))
IP 54
The DPP-SU sensor is defined by the following parameters:
Parameter Value
Acoustic amplification >120 dB (facility for limiting amplification to 84
dB(A) can be switched on and off)
Dynamic range
•Acoustic channel
•Magnetic channel
>110 dB
>110 dB
Acoustic frequency range 100 to 1500 Hz
Acoustic filters Software-activated filters for improving acoustic
perception
Noise suppression Patented noise suppression (BNR) (software-
activated)
Automatic mute Proximity sensor for automatic mute
Trigger threshold setting Can be switched between automatic and manual
setting
Error direction detection Automatic
Weight (incl. telescopic handle) <2.2 kg
Dimensions 230 mm x 140 mm (Ø x H)
IP protection class (in
accordance with IEC 60529
(DIN VDE 0470-1))
IP 65 (only for plugged-in connector)
Indicator unit
DPP-SU sensor(

Technical description
14
The iFS receiver is defined by the following parameters:
Parameter Value
Reception frequencies
•Passive 50 Hz / 60 Hz / 100 Hz / 120 Hz / 15 … 23 kHz
•Active 480 Hz / 491 Hz / 512 Hz / 640 Hz / 982 Hz / 1090 Hz /
1450 Hz / 8440 Hz / 9800 Hz / 9820 Hz / 32768 Hz
Detectable current strength At 1 m laying depth
•50 Hz 10 mA …10,000 A
•491 Hz 400 μA … 400 A
•982 Hz 180 μA …180 A
•8440 Hz 20 μA … 20 A
•32768 Hz 5 μA … 5 A
Automatic depth
measurement
(Except at passive frequencies of 15 … 23 kHz)
•Range 0.1 … 7 m (line location)
0.1 … 15 m (probe location)
•Accuracy ±5% up to 2 m depth (line) or 5 m depth (probe) resp.
Manual depth measurement According to the 45° method
Current strength
measurement
•Accuracy
Only with active frequencies
±10%
SignalSelect (current
direction indication)
Possible at all active frequencies (if supported by the
transmitter)
Weight (incl. telescopic
handle)
1.0 kg
Dimensions 100 mm x 730 mm x 45 mm (W x H x D)
IP protection class (in
accordance with IEC 60529
(DIN VDE 0470-1))
IP 54
The earth spikes are defined by the following parameters:
Parameter Value
Weight 750 g
Length 1.02 m
Receiver iFS
ESG earth spikes
(optional)

Technical description
15
The identification antenna is defined by the following parameters:
Parameter Value
Reception frequencies
•Passive 50 Hz / 60 Hz / 100 Hz / 120 Hz / 15 … 23 kHz
•Active 480 Hz / 491 Hz / 512 Hz / 640 Hz / 982 Hz / 1090 Hz /
1450 Hz / 8440 Hz / 9800 Hz / 9820 Hz / 32768 Hz
Sensitivity
•50 Hz 15 mA
•491 Hz 1.5 mA
•982 Hz 500 µA
•8440 Hz 50 µA
•32768 Hz 12 µA
Dynamic range 120 dB
Weight 180 g
Dimensions
(without connection lead)
54 mm x 75 mm x 22 mm (W x H x D)
IP protection class (in
accordance with IEC 60529
(DIN VDE 0470-1))
IP 54
Identification antenna
IFA (optional)

Technical description
16
2.3 Connections and controls on the indicator unit
The following illustration shows the connections and controls on the indicator unit:
Element Description
Display
Knob
Function key 2
Earth spike connection sockets
Sensor socket / receiver connection
Function key 1
Indicator unit on/off (when pressed and held),
Backlighting on/off (when pressed briefly),
LED indicates the device is switched on (green) and low batteries (red)
Connection socket for headphones

Basic operation of the indicator unit
17
3Basic operation of the indicator unit
Before switching on, the indicator unit must be connected to the measurement
accessory that is required for the intended use. Then the indicator unit can be switched
on by briefly pressing the button.
The connected measurement accessory is normally automatically detected and the
appropriate software mode started immediately. The device is ready for operation after
just a few seconds.
If the connected measurement accessory is not detected, a selection screen appears
with the available software modes.
Once proper connection of the measurement accessory has been checked, the
appropriate software mode can be selected manually. The displayed selection depends
on the software modes that are enabled on the indicator unit:
Ferrolux mode (see page
41)
Digiphone mode
(see page 19)
ESG mode (see page 73)
Switching on the
indicator unit

Basic operation of the indicator unit
18
After switching on the device, you should check the battery status immediately using the
charging bar in the top right corner of the display.
If the bar is barely filled, it is advisable to carry replacement batteries. As of a residual
capacity of about 20%, both the battery status indicator and the LED in the button
illuminate in red.
The display backlighting is automatically activated immediately after the indicator unit is
switched on. Because the indicator unit is equipped with a transreflective display, the
background illumination must be switched off by briefly pressing the push-button if
sufficient strong sunlight is available. This extends the operating time of the indicator
unit.
The backlight can be switched back on at any time by briefly pressing the button again.
With the exception of a few functions, the indicator unit is operated exclusively using the
knob. The functions available vary according to the respective current view:
Action Function in the measurement
screen
Function in the menu screen
Opens the menu screen Opens the currently selected menu
item
Adaptation of the measurement
range and/or the volume
(depending on the active mode)
Selects the menu item
The indicator unit is equipped with the two and function keys, which can be
used to call up the important functions directly from the measurement screen without
first having to call up the menu screen. The current function key assignments are
permanently displayed in the bottom corners of the measurement screen.
The function key assignments can be adapted in the basic settings of the respective
software mode if necessary.
Battery test
Back-light
Operation using the
knob
Function keys

Pinpointing Cable Faults in “Digiphone” Mode
19
4Pinpointing Cable Faults in “Digiphone” Mode
CAUTION
If the volume limiter is deactivated, when listening to flashover noise,
additional airborne sound and excessive amplification can lead to
dangerous sound levels in the headphones!
4.1 Preparatory Measures
4.1.1 Starting Up the Surge Wave Generator
WARNING
To pinpoint a cable fault, a surge wave generator is needed. When
equipment creating such high voltages is used, certain safety regulations
must be complied with. It is essential to read the surge wave generator’s
manual before.
Connect the generator to the faulty wire and start applying surges with a surge voltage
that will cause a flashover at the fault but which is also permitted for the cable type.
For more details about starting up the surge wave generator, please read the
accompanying instructions.
For effective background noise reduction (see page 37
) a stable magnetic pulse
is necessary. When the surge voltage is maximised, and with it the magnetic
pulse level, this generally improves detection of the flashover noise.

Pinpointing Cable Faults in “Digiphone” Mode
20
4.1.2 Preparing the Sensor
Three different probes are supplied with the sensor as standard (two sensor rods and
one 3-point foot). They can be screwed onto the underside of the sensor to suit the
ground conditions.
The 18 mm rod and the 3-point foot can both be used on smooth and solid ground.
Because their acoustic qualities are different, it is for the operator to decide which probe
they prefer to use on such ground.
An advantage of the 3-point foot is that a sensor rod can be fitted on its underside. This
means that the foot does not need to be constantly unscrewed when the ground
changes.
Fitting a suitable probe
on the sensor
3-point foot
preferred for uneven, solid
ground
Sensor rod 75 mm
preferred for grassland and loose
ground
Sensor rod 18 mm
preferred for smooth, solid ground
(e.g. asphalt)