Primayer Eureka3 Manual de usuario

Eureka3 Page 1

User Manual

CXD-930-UM/044

Issue 1.3

13 August 2013

Primayer Ltd

Primayer House

Parklands Business Park

Denmead

Hampshire

PO7 6XP

Telephone +44 (0) 23 9225 2228 Fax +44 (0) 23 9225 2235

Website www.primayer.com Email [email protected]

Eureka3 User Manual

Eureka3 Page 2

UK Office:

Primayer Limited

Primayer House

Parklands Business Park

Denmead

Hampshire

PO7 6XP

England.

Telephone: +44 (0)23 9225 2228 Fax: +44 (0)23 9225 2235

Email: sales@primayer.co.uk

Malaysian Office:

Primayer Sdn Bhd

21-A, Jalan Annggerik Vanilla X31/X

Kota Kemmuning, 40460 Shah Alam

Selangor Darul Ehsan

Malaysia

Telephone: +60 (0)3 5121 2428 Fax: +60 (0)3 5121 2430

Email: sales@primayer.com.my

French Office:

Primayer SAS

Centre d’Affaires BSC

1, rue Louis Juttet

69410 CHAMPAGNE AU MONT D’OR

France

Telephone: +33 (0)4 72 19 10 62 Fax: +33 (0)4 72 17 70 54

Email: contact@primayer.fr

Indian Office:

Primayer Asia Company Limited

Level 2, Kalpataru Synergy

Santacruz (East)

Mumbai 400055, India

Telephone : +91 (0)22 3953 7451 Fax : +91 (0)22 3953 7200

Email: sales@primayer.in

Primayer Limited provides a technical support service to assist on all matters relating to the

configuration and use of Eureka3. Customers are encouraged to make use of this service, by

contacting support@primayer.co.uk or using the contact details provided above.

Primayer Limited reserves the right to amend any specification without notice. Primayer will not be

responsible for any consequential damages arising from such changes, or from errors contained in

any publication.

(0003)

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Eureka3 Page 3

Table of Contents

Introduction..........................................................................................................................6

1.1

System Overview ..........................................................................................................6

1.2

System Contents...........................................................................................................6

1.2.1

Standard Package ....................................................................................................6

1.2.2

Optional Items ..........................................................................................................6

Principles of Leak Noise Correlation.................................................................................7

2.1

Methods of location.......................................................................................................7

2.2

Sensor Position.............................................................................................................7

2.2.1

Leak Beyond Sensors ..............................................................................................8

2.2.2

Leak on Connecting Pipe .........................................................................................8

System Components...........................................................................................................9

3.1

Transmitters ..................................................................................................................9

3.1.1

Handle ......................................................................................................................9

3.1.2

Antenna Socket ........................................................................................................9

3.1.3

Pushbutton Switch....................................................................................................9

3.1.4

LED Level Indicator ................................................................................................10

3.1.5

Battery LED ............................................................................................................10

3.1.6

Radio Power LED ...................................................................................................10

3.1.7

External Sensor/Charger Socket............................................................................10

3.1.7.1

External Accelerometer .................................................................................10

3.1.7.2

Hydrophone ...................................................................................................10

3.1.7.3

Transmitter Charging .....................................................................................10

3.1.8

Internal Accelerometer ...........................................................................................11

3.2

PrimeTouch.................................................................................................................12

3.2.1

Switch/LED Panel...................................................................................................12

3.2.2

PrimeTouch Rear View...........................................................................................13

3.2.2.1

On/Off Switch.................................................................................................13

3.2.2.2

Charging LED ................................................................................................13

3.2.3

Antenna Socket ......................................................................................................14

3.2.4

Touch Screen .........................................................................................................14

3.2.5

USB Ports ...............................................................................................................14

3.2.6

Headphone Jack Socket.........................................................................................14

3.2.7

Charging/Direct Sensor Input Socket .....................................................................14

3.2.8

Power Save ............................................................................................................14

3.2.9

Charging PrimeTouch.............................................................................................14

3.2.9.1

Charge Time ..................................................................................................15

3.2.9.2

Battery Life.....................................................................................................15

Deployment ........................................................................................................................16

4.1

Choosing the Transducer Type ..................................................................................16

4.2

Attach Transducers.....................................................................................................16

4.2.1

Accelerometers.......................................................................................................16

4.2.2

Hydrophones ..........................................................................................................16

4.3

Setup Transmitters......................................................................................................17

4.4

PrimeTouch Sensor Direct Input.................................................................................17

4.5

Set up PrimeTouch .....................................................................................................17

4.6

Radio Range ...............................................................................................................17

4.7

Inter-Transducer Distance ..........................................................................................17

4.8

Velocity .......................................................................................................................18

4.9

Filter Settings ..............................................................................................................18

Eureka3 Application ..........................................................................................................19

5.1

Introduction Screen.....................................................................................................19

5.1.1

Red Transmitter Power Icon...................................................................................19

5.1.2

Blue Transmitter Power Icon ..................................................................................19

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5.1.3

Battery Charge Indicator.........................................................................................19

5.1.4

Settings Button .......................................................................................................20

5.1.5

Correlation Button...................................................................................................20

5.2

Settings Screen...........................................................................................................20

5.2.1

Volume Slider .........................................................................................................20

5.2.2

Brightness Slider ....................................................................................................21

5.2.3

Units Button ............................................................................................................21

5.2.4

Date/Time Display ..................................................................................................21

5.2.5

Language Button ....................................................................................................21

5.2.6

Velocities Table Button...........................................................................................21

5.2.7

Tick Button..............................................................................................................21

5.3

Velocities Table Screen ..............................................................................................22

5.3.1

Pipe Material...........................................................................................................22

5.3.2

Velocity Value.........................................................................................................22

5.3.3

Restore Factory Default Button ..............................................................................23

5.3.4

Cross Button ...........................................................................................................23

5.3.5

Tick Button..............................................................................................................23

5.4

Correlation Screen ......................................................................................................24

5.4.1

Swiping ...................................................................................................................24

5.4.2

Information Display.................................................................................................25

5.4.3

Start/Stop Correlate Button ....................................................................................25

5.4.4

Goto Peak Button ...................................................................................................25

5.4.5

Noise Suppression Button......................................................................................25

5.4.5.1

Turn Noise Suppression On ..........................................................................25

5.4.5.2

Turn Noise Suppression Off ..........................................................................25

5.4.6

Zoom Button ...........................................................................................................26

5.4.7

Pipe Entry Button....................................................................................................26

5.4.8

Transmitter Icon......................................................................................................26

5.5

Pipe Details.................................................................................................................27

5.5.1

Pipe Length ............................................................................................................28

5.5.2

Pipe Diameter.........................................................................................................28

5.5.3

Pipe Material Type..................................................................................................28

5.5.4

Add Pipe Section ....................................................................................................28

5.5.5

Remove Pipe Section .............................................................................................28

5.5.6

Tick Button..............................................................................................................28

5.5.7

Cross Button ...........................................................................................................28

5.6

Velocity Correction......................................................................................................29

5.6.1

Velocity Correction Example ..................................................................................29

5.7

Save Data ...................................................................................................................31

5.7.1

Location Field .........................................................................................................31

5.7.2

Operator Field.........................................................................................................31

5.7.3

Comments Field .....................................................................................................31

5.7.4

Tick Button..............................................................................................................31

5.7.5

Cross Button ...........................................................................................................31

5.7.6

Copy Reports Button ..............................................................................................32

5.7.7

Exported Reports....................................................................................................32

5.7.7.1

Data Report Example ....................................................................................32

5.7.7.2

WAV file for import into Enigma.....................................................................33

5.8

Transmitter Menu........................................................................................................34

5.8.1

Swap Transmitters..................................................................................................34

5.8.2

Set GPS Coordinates .............................................................................................34

5.8.3

Hydrophone/Accelerometer....................................................................................34

5.9

Direct Input..................................................................................................................34

5.10

Frequency Spectrum/Coherence Screen ...................................................................35

5.10.1

Low Filter Value .................................................................................................36

5.10.2

High Filter Value.................................................................................................36

5.10.3

Filter Swipe Enable Button.................................................................................36

5.10.4

Restore Defaults Button .....................................................................................36

5.10.5

Frequency Spectrum Data .................................................................................36

5.10.6

Coherence..........................................................................................................36

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5.11

Controls Screen ..........................................................................................................37

5.11.1

Listen to Red/Blue Channel ...............................................................................37

5.11.2

Volume Control Slider ........................................................................................37

5.11.3

Screen Brightness Slider....................................................................................37

Appendix 1 – Eureka3 Technical Specification ..............................................................38

Index ...................................................................................................................................40

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1 Introduction

1.1 System Overview

Eureka3 is a high performance leak noise correlator used for the location of leaks in buried water

pipes. The system combines sophisticated technology with flexible operation to locate leaks in difficult

conditions, e.g. where there is substantial background noise, where only the quietest of leak noise is

present, or with a variety of pipe materials.

The Eureka3 system is based around the PrimeTouch

processor platform. PrimeTouch comprises

radio receivers, signal processing electronics and runs the Eureka3 software application.

PrimeTouch, Transport Case, Transmitters and Optional Accelerometers

1.2 System Contents

1.2.1 Standard Package

The Eureka3 standard package comprises:

•Red transmitter with internal accelerometer

•Blue transmitter with internal accelerometer

•Stability plate (x2)

•Transmitter antenna (x2)

•PrimeTouch

•Headphones

•Car charge cable (12Vdc)

•Mains charger

•Transport case

1.2.2 Optional Items

The optional items available are:

•External accelerometer(s)

•Hydrophone(s)

•Sensor extension cable(s)

•Accelerometer grip attachment(s)

•Magnetic vehicle mount antenna

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2 Principles of Leak Noise Correlation

Leak noise correlation is used to detect leaks in pipelines where there is a positive internal pressure,

such that a leak causes a loss of fluid to the outside. The movement of fluid through the leak causes

rapid pressure changes around the site of the leak such that there is a randomly varying noise source

located at the leak. This noise travels in both directions, at the same velocity, from the leak.

(Noise is not a constant frequency like a musical note, but is a random and continually changing

mixture of different frequencies. It is this characteristic which enables the correlator to operate.)

2.1 Methods of location

Previous methods of leak location relied on detecting a noise, then tracing it at ground level to find the

point of maximum noise, which was assumed to be directly above the position of the leak. The

equipment used included listening sticks and stethoscopes, but these were difficult to use if the noise

was faint or too loud to be accurately located. Background noise was another problem; electronically-

filtered amplifiers were introduced in an attempt to overcome such problems.

A correlator operates by comparing the noise detected at two different points in the pipeline. Noise

travels from the leak in both directions along the pipeline at a constant velocity (which depends on

various factors), so that if the leak is equidistant between two sensors then these sensors will detect

the noise at the same time. Conversely, if the leak is not equidistant then the sensors will detect the

same noise at different times, and the difference in time (the time delay) is measured by the correlator.

The following diagram illustrates this:

The sensors are located on the valves A and B (convenient access points for underground pipes), and

as shown the leak site is closer to A.

By the time a particular noise from the leak has reached A, the same noise heading towards B has

only travelled as far as X. The distance from X to B causes a delay t before the noise arrives at B, thus

the correlator detects the delay (t) between the arrival of the noise at A and its arrival at B. If the

velocity of sound is V and the distance between the sensors is D, then as the distance from X to B = V

* t, (velocity x time), then D = (2 * L) + (V * t). This equation may be rearranged to give L, the distance

from the nearer sensor to the leak site:

)*( tVD

−

As the sound velocity can be calculated from knowledge of the pipe diameter and material, while the

distance between the sensors can be determined by careful measurement, the correlator can

calculate and display the location of the leak as a direct distance from the nearer sensor. Alternatively,

the correlator may be used to measure the actual velocity of sound in the pipework being examined,

so ensuring the highest possible accuracy in locating the leak.

2.2 Sensor Position

Correlator operation depends on having the leak located between the two sensors. There are two

situations where this is not the case and one sensor will have to be moved before an accurate

correlation can be performed.

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Eureka3 Page 8

2.2.1 Leak Beyond Sensors

If the leak is located outside the length of pipe between the sensors, then the correlator will ignore the

transit time from the leak to the nearest sensor, as this transit time will be the same for both sensors.

This will give the result that the leak will appear to be located directly at the sensor nearest to the leak.

(This is sometimes termed “out-of-bracket”.) This is an indication that one sensor must be moved to

locate the leak position accurately.

2.2.2 Leak on Connecting Pipe

If there is a leak on a pipe that connects to the pipe being sensed, then the noise will appear to spread

from the point of connection of the pipes, and so will appear as a leak at that point. It is then

necessary to move one sensor to the connecting pipe (in other words, to place the leak between the

sensors) in order to locate the leak accurately. A thorough knowledge of the layout of the entire pipe

network is required to ensure that the correlator is making measurements on the correct section of

pipe and that there is no possibility of leaks on branch pipes causing false readings.

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3 System Components

3.1 Transmitters

Eureka3 has two transmitters, one red and one blue. They both listen to noise which is transmitted to

PrimeTouch via an internal radio transmitter. The transmission frequency of each transmitter is

different to distinguish the different noise signals.

A Handle

B Antenna Socket

C Pushbutton Switch

D Level Indicator LEDs (5)

E Battery Indicator

F Transmit Power Level Indicator

G External Sensor/Charging Socket

3.1.1 Handle

The handle is a simple plastic loop.

3.1.2 Antenna Socket

The antenna socket allows the connection of the antenna.

3.1.3 Pushbutton Switch

The pushbutton switch has several functions.

When the transmitter is off:

•Short press will show the battery charge on the LED Level Indicator.

•Long press (2 seconds) will turn on the transmitter (the battery charge and transmitter LEDs

will come on, then the LED level indicator will show received noise level).

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When the transmitter is on:

•Short press will cycle the transmitter between low and high radio power output.

•Long press (2 seconds) will turn off the transmitter (press and hold until all the LEDs come on

and go off).

3.1.4 LED Level Indicator

At first switch on, the LED level indicator will give a representative indication of battery charge; full

charge is indicated by 5 LEDs and minimum charge by a single LED. After a short while the display

will change mode and give an indication of the sound level picked up by the transmitter. A single LED

shows a low sound level; all LEDs indicate the highest sound level.

3.1.5 Battery LED

The LED shows green when the transmitter is switched on. The LED will show red when the battery

charge is low; the transmitter should then be charged.

3.1.6 Radio Power LED

The radio power LED shows the transmit power setting of the transmitter. Green indicates low power,

yellow indicates high power. Low power needs to be used when the transmitter is near PrimeTouch

(within 20metres).

3.1.7 External Sensor/Charger Socket

The connector allows the connection of external sensors and also connects the transmitter to the

charger when it is in the transport case.

3.1.7.1 External Accelerometer

The external magnetic accelerometer sensor is used where the location of the transmitter does not

allow the easy attachment of the internal accelerometer to a pipe or fitting. This also allows the option

of placing the transmitter above ground to improve the radio signal between the transmitter and

PrimeTouch. A metal plate can be attached to the bottom of the transmitter to provide stability to the

unit. External accelerometers from previous Eureka correlation units are compatible with Eureka3

transmitters.

3.1.7.2 Hydrophone

Hydrophones can be purchased separately to improve noise quality for large diameter (typically

>300mm) and plastic pipes, or even for sites with excessive background noise. A hydrophone can be

attached to the transmitter and directly inserted into the pipe through a hydrant or similar fitting. This

option then needs to be selected on PrimeTouch.

Adhere to local water hygiene regulations when

inserting hydrophones into potable water pipes.

The Eureka3 software must have the correct

information about the sensors connected.

3.1.7.3 Transmitter Charging

The transmitters are charged in the transport case. To charge, connect one of the charge leads in the

transport case to each transmitter. Connect the transport case to the mains supply using the mains

adapter or use the vehicle charge cable (12Vdc).

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