Water Leak Detection System · 3.1.4 Correlation Function Display 7 3.1.5 Diagramatical Representation of Pipe 7 3.1.6 Displaying Transmitters A and B 7 3.1.7 Current Pipe Data 7

Water Leak Detection SystemMetrotech™ HL 6000™ PC Correlator

Operations Manual

THE INFORMATION CONTAINED IN THIS DOCUMENT IS FOR INFORMATIONAL PURPOSES ONLY AND IS SUBJECT TO CHANGE WITHOUT NOTICE. METROTECH CORPORATION MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THE INFORMATION CONTAINED IN THIS MANUAL, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. METROTECH SHALL NOT BE LIABLE FOR ERRORS CONTAINED HEREIN, NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES FROM THE FURNISHING OF THIS INFORMATION.

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THERE ARE NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY, BEYOND THOSE STATED HEREIN.

Metrotech warrants its equipment to be free from defects in workmanship and material under normal and proper use and service for one year from date of purchase by original user, but not to exceed eighteen months after date of original shipment from the factory. Metrotech assumes no obligation to repair or replace equipment that has been altered or repaired by other than Metrotech approved procedure; been subject to misuse, misapplication, improper maintenance, negligence or accident; had its serial number or any part thereof altered, defaced or removed; or been used with parts other than those approved by Metrotech. Warranty does not include batteries. Expendable items such as fuses and lamps are excluded.

Any detection product proved defective under this warranty will be repaired or replaced free of charge at the Metrotech Corporation factory or approved Metrotech repair station. The equipment should be returned to our factory by prepaid transportation after requesting and receiving return authorization from our Customer Service Department. Metrotech obligations are limited to repair or replacement of broken or defective parts which have not been abused, misused, altered or accidentally damaged, or at the option of Metrotech, to refund of the purchase price. Metrotech assumes no liability for removal or installation costs, consequential damages, or contingent expenses of any other nature.

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HL 6000, Metrotech, are trademarks of Metrotech Corporation. Other trademarks stated in this document are the property of their respective owners.

© 2008 by Metrotech Corporation. All rights are reserved.

HL 6000 PC Correlator Operating Instructions | iiiDoc No. R12244 Jan/2009

Contents

1 Quick Guide 11.1 Quick guide for TR A / TR B amplifier-transmitters 11.2 Quick guide for HL 6000 PC Correlator 2

2 Operating Instructions for HL 6000 PC Correlator Transmitter 42.1 Controls for TR A / TR B transmitters 42.2 Explanation of symbols 42.3 Operating instructions for TR A / TR B 5

3 HL 6000 PC Correlator software 63.1 Correlator Display, Main Screen 6

3.1.1 Channel A and B Time Signal Display 63.1.2 Signal Spectrum or Coherence Display 63.1.3 Channel A and B Level Display 63.1.4 Correlation Function Display 73.1.5 Diagramatical Representation of Pipe 73.1.6 Displaying Transmitters A and B 73.1.7 Current Pipe Data 73.1.8 Start Correlation Button 73.1.9 Start 3D / 2D Correlation” Button 73.1.10 Finishing the Correlation 83.1.11 Changing to the Pipe Table Display 83.1.12 Reset Display 83.1.13 Playback 83.1.14 Automatic Frequency Analysis 93.1.15 Measurement Statistics 103.1.16 Measuring Sound Speed 113.1.17 Zoom In 113.1.18 Zoom to Pipe Length 113.1.19 Load Correlation 113.1.20 Save Correlation 113.1.21 Print Correlation 123.1.22 Help / Operating Instructions 123.1.23 Filter +/- 123.1.24 Wide Band 123.1.25 Coherence / Spectrum A+B 12

3.2 Pipe Table Display 133.2.1 Selecting the number of pipe sections 133.2.2 Data for the Individual Sections 143.2.3 Editing the Material List 153.2.4 Return to the Correlation Display 15

3.3 Multicorrelation Display 16

iv | HL 6000 PC Correlator Operating Instructions Doc No. R12244 Jan/2009

3.4 Report Display 173.4.1 Load Background Picture 173.4.2 Satellite Map 173.4.3 Undo the Last Drawing Step 173.4.4 Delete a Drawing 183.4.5 Create a New Page 183.4.6 Select the Line Colour 183.4.7 Select the Fill Colour 183.4.8 Comment About a Measurement 183.4.9 Graphic Symbols 183.4.10 Drawing on the map 193.4.11 Loading Additional Symbols 193.4.12 Insert Text in the Drawing 193.4.13 Load Correlation 193.4.14 Save Correlation 193.4.15 Printing correlation 193.4.16 Help / Operating instructions 19

3.5 Configuration Display 203.5.1 Skins 203.5.2 2D / 3D 203.5.3 Change the Measurement Unit to Metric or Imperial 203.5.4 Reset Settings 213.5.5 Defining User Name 213.5.6 Choose a Logo for the Printout 21

4 Charging / Operation with external power 215 Technical Data 22

5.1 HL 6000 PC Correlator 225.2 TR A / TR B Transmitters 225.3 PAM CORR Sensors 23

6 Accessories 23

HL 6000 PC Correlator Operating Instructions | 1Doc No. R12244 Jan/2009

1 Quick Guide

The HL 6000 PC Correlator uses highly developed measuring techniques and signal processing. It has been designed to be simple to operate and to show measurement results in an informative manner. To make the most of the equipment, however, we recommend that you read these operating instructions carefully.

The main steps for performing a correlation are explained in the Quick Guide. A detailed explanation follows thereafter.

1.1 Quick guide for TR A / TR B amplifier-transmitter

Function Operation

1. Put transmitter A (orange) at location 1 and fix the sensor to the valve, rod or hydrant. Proper contact between sensor and object is important. Check sound with headphones.

1. Switch transmitter A on. Align the aerial vertically and close the lid.

1. Put transmitter B (blue) at location 2 and fix the sensor to the valve, rod or hydrant.

1. Switch transmitter B on. Align the aerial vertically and close the lid.

2 | HL 6000 PC Correlator Operating Instructions Doc No. R12244 Jan/2009

Fig 1: Setting up the correlator

1.2 Quick guide for HL 6000 PC Correlator

• Connect aConnect the delivered antenna to the socket of the E-Box

• Connect the USB E-Box to an unused USB port on your computer

• Turn on your computer and click the following icon once the system has started:

If necessary, select language in the Start screen, otherwise the program automatically advances.

Click into correlation window.

Start measuring with Start Correlation

After approx. 3 seconds the first result of the correlation is displayed. When the result shows a clear correlation curve (sometimes it can take a few more seconds before the display becomes clearer), finish the correlation by clicking the Stop symbol.


Now click the “Pipe table” symbol or the “Pipe table” tab to go to the page where the different pipe sections can be entered. Select the number of pipe sections, pipe data and the respective lengths here and then return to the correlation page (click tab or symbol).

You can now see the pipe sections entered underneath the correlation curve, shown diagramatically and assigned directly to the location of the leak found.


2 Operating Instructions for HL 6000 PC Correlator Transmitter

2.1 Controls for TR A / TR B transmitters

Fig 2: Front panels of TR A / B transmitters

2.2 Explanation of symbols

Symbol Explanation

Headphone connection and charging socket

Sensor connection

Aerial connection

Transmitter buttons


2.3 Operating instructions for TR A / TR B

• Positioning the transmitters

1. Put transmitter A (orange) at location 1 and fix the sensor to the valve, rod or hydrant.

2. Put transmitter B (blue) at location 2 and fix the sensor to the valve, rod or hydrant.

3. The transmitters must always be set up with the antenna pointing upwards. ( See Fig 1: Setting up the correlator)

• Transmitter on

1. Use this button to turn the transmitter on. After switching on, a message first appears about the software version and the remaining battery capacity. This message will disap-pear after about 3 seconds and the transmitter is then ready to use.

2. After every button push, the background illumination for the display lights up for about 1 minute and then turns itself off automatically.

3. The transmitter automatically turns itself completely off after operating for 2 hours.

• Listening to the leak noise / displaying the level

1. You can listen to the leak noise via the headphone socket on both transmitters A and B. This means that an assessment can be made before doing the correlation and the user can decide whether the sound picked up is due to water leaking or is due to some other source (a pump, etc.). If necessary, the headphone volume can be adjusted using the ar-row buttons

2. The noise level is shown on the display both as a bar and as a numerical value. This means that you can easily compare levels at different measurement locations.


3 HL 6000 PC Correlator Software

3.1 Correlator Display, Main Screen

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The individual elements of the screen are explained as follows. The number in front of the heading is the reference to this picture.

3.1.1 Channel A and B Time Signal Display

If the time signal is flat and more like a line, a correlation cannot be performed. Possible sources of faults: signal interruptions, a bad contact between sensor and valve, etc.

3.1.2 Signal Spectrum or Coherence Display

Filters are also shown in this window. These can simply be set by clicking and dragging the cursor in the window.

3.1.3 Channel A and B Level Display

The yellow and blue bar indicate if the E-Box is plugged into your PC and that the channels work properly.


3.1.4 Correlation Function Display

The delay time of the cursor position is shown inside the window next to the cursor (symbolised by a red line). Left-clicking with the mouse resets the cursor (default settings to the maximum correlation are done by the software automatically).

Right-click and drag with the mouse in this window to hide certain ranges from the correlation. This function is called “peak suppression”.

3.1.5 Diagramatical Representation of Pipe

This diagram does not just show the pipe but also a direct reference to the position of the cursor and hence the leak.

3.1.6 Displaying Transmitters A and B

The leak distance is shown above TR A and TR B. Both added together result in the total length of surveyed pipe. Watching A and B also indicates radio reception from TR A and TR B.

3.1.7 Current Pipe Data

See different pipe materials in different colors including pipe parameters.

3.1.8 Start Correlation Button

You can start a correlation with this function. If no pipe data has been entered, start a so-called “overview measurement”, as described in the Quick Guide. The advantage is to check quickly and efficiently if there is a possible leak on this pipe section.

3.1.9 Start 3D / 2D Correlation Button With this function you can show the time constancy of a noise, just as with a data logger. In this way, you can identify sounds that are not constant and are therefore also presumably not a leak.


You can choose either a 2-dimensional or a 3-dimensional representation. The change can be made in the “Configuration” menu.

3.1.10 Finishing the Correlation

Most of the functions are deactivated while a correlation is running. After finishing the correlation, this functions will be available again.

3.1.11 Changing to the Pipe Table Display By clicking the pipe data button (11) underneath the correlation window or choosing the appropriate tab, you can also go to the pipe tables (see also Chapter 3.2).

3.1.12 Reset Display

This deletes all current correlation and pipe data and a new measurement process can be started.

3.1.13 Playback

If the sound data was also saved during a previous correlation this can be replayed with this button after loading. A correlation is started at the same time and the result displayed in the correlation window. Important: To be able to listen and re- correlate at the same time you need a stereo sound card built into your PC. The “stereo- mix” sound file must be activated and the loudspeaker symbol in the task bar in the “on” position.


3.1.14 Automatic Frequency Analysis

This performs an automatic frequency analysis and analyses at which filter setting the best correlation takes place. Ten different results are then shown.

The best result is shown in red. If you click this window, the correlation is shown in “Normal” mode with the corresponding filter settings.

This function helps you to optimise the filter settings and to improve the correlation result. You should, however, analyze the result very carefully to see whether it matches the actual situation.


3.1.15 Measurement Statistics

First the curve shape for the correlation performed is analyzed and is allocated a quality factor between 0 and 100. The higher the value, the clearer the correlation.

For low values, the button for frequency analysis (14) is shown in the statistics window because an improvement might be possible by altering the filter settings.

Result statistics are also displayed.

With a measurement process that lasts longer, other louder noises (for example, water being briefly extracted) can affect the correlation and this will result in the cursor (and thereby the distance to the leak) not staying constantly in one position. These values appear in the statistics with low percentage values. This way, the function helps you to better identify the position of the leak.


3.1.16 Measuring Sound Speed

Measuring the “sound speed” is essential to generate an exact correlation result, especially for unknown pipe materials and pipe characteristics (e.g. old pipes).

To measure the sound speed of the pipe, an artificial leak must be created and the distance from this leak to the transmitters must be known. A slightly opened hydrant, for example, is an artificial leak. The leak can be both within or outside the transmitters. It is recommended, however, that the leak is produced outside the transmitters.

1. Place both sensors at suitable measuring points and open the artificial leak.

2. Start a new correlation with the “Start correlation” button (8). Finish the correlation when you have received a suitable result.

3. Now open the “Speed measurement” dialogue by clicking button (16). Enter the correspond-ing data in the query window.

The result is the sound speed of the pipe. Now close the artificial leak and perform the correlation again using the new data to determine the distance to the real leak.

3.1.17 Zoom In

With this function activated, the correlation curve can be enlarged in the chosen range by clicking and dragging with the mouse in the correlation window. This is particularly useful when two peaks are very close to one another.

3.1.18 Zoom to Pipe Length

The correlation window is automatically adjusted so that the length of the pipe fills the whole width of the window. By pressing the button once again, the whole measurement length is displayed again and the pipe is reduced in the middle of the measuring range.

3.1.19 Load Correlation

A saved measurement can be loaded. If sound data was saved this is also loaded at the same time.

3.1.20 Save Correlation

First you will be asked whether you would like to save the actual sounds as well. If you choose “no”, only the correlation curve (diagram) and the report will be saved. Otherwise, the sound data will also be stored in universal WAV format. The saved sound data can be called up at any time again, played back and correlated once again.


3.1.21 Print Correlation

Produces a printout of the correlation curve including a report.

If you have also produced a damage sketch, this can be printed out at the same time as well by checking “Sketches”. The sketch will be printed out on a 2nd sheet.

The printer selected is always the printer that is defined in Windows as the “default printer”. Please consult Windows Help if you wish to change the selected printer.

3.1.22 Help / Operating Instructions

The Operating Instructions supplied are called up in pdf-file form. You can therefore read about the functions and operation at any time.

3.1.23 Filter +/-

When “+” is checked, only the selected range is used for the evaluation. When “-” is checked, this range is excluded from the evaluation.

3.1.24 Wide Band

By clicking this button, the filter is fully opened to the maximum bandwidth.

3.1.25 Coherence / Spectrum A+B

Used to toggle between coherence representation and display of each sensor spectrum sent by the transmitters.


3.2 Pipe Table Display

3.2.1 Selecting the number of pipe sections

A maximum of ten different sections can be entered. Press the “up” arrow to increase the number of sections. The “down” arrow reduces the number of sections.

The total length of all the pipe sections is displayed after the number of pipe sections.

The first two sections are shown enlarged to make entry using a touchscreen PC easier.

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3.2.2 Data for the Individual Sections

The length can either be entered directly via the keyboard or with the two arrow buttons next to the field for the length. The material and diameter are selected from a drop-down list. Click the small triangle directly next to the materials description and select the pipe material from the list.

The stored sound speed is displayed underneath. Select the “manual” box to enter the pipe’s sound speed by hand. This is necessary if you have carried out sound speed measurements for pipe sections and they do not match the listed speeds. In such cases you can improve the correlation result. If this option is set to “manual”, the material and diameter can no longer be selected.


3.2.3 Editing the Material List

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The user can add other pipe materials and sound speeds to the saved materials list, or alter the list, as many times as they wish.

To add materials, click “+” at (1) in the left-hand part of the window. Enter a name for the material in the following dialogue. It is advisable to clearly mark new materials (e.g. with your town as an additional remark) so that you can distinguish them later from the standard materials.

To then add the corresponding diameters and sound speeds to the new material, press “+” at (2). Fill in the subsequent dialogues with the corresponding values. You can measure sound speeds using the function of the HL 6000 PC Correlator that has just been mentioned. Please also read the chapter about this topic.

With the “Standard settings” button, you reset the pipe table back to its original state when the equipment was delivered. CAUTION! All data that you have entered will be deleted.

Click to return to the pipe table.

3.2.4 Return to the Correlation Display

Click to return to the Correlation Display.


3.3 Multicorrelation Display

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This operation mode enables you to compare two or even several measurements on a pipe and replaces a three-point correlation.

First carry out a correlation for a pipe section and save the measurement.

Now reposition one of the sensors and perform the correlation as normal.

To see whether both results agree select the multicorrelation mode.

In the upper screen the correlation from the main screen is shown as standard. If required, button (1) will, however, also enable you to load a saved correlation.

The comparative measurement for lower screen (4) is loaded using the corresponding (1). Before this, (2) must still be used to select the sensor that had the same position during both measurements.

You can therefore use your first measurement as a reference measurement and compare this with a large number of other correlations in the same range.


3.4 Report Display

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This screen allows you to create a measurement report with a sketch. This report is saved and also printed out together with the correlation.

3.4.1 Load Background Picture

A pipe network map, for example, can be loaded as a background picture. The HL 6000 PC Correlator supports, when loading, JPG, BMP, GIF and PNG image formats. If you wish to integrate pictures from your GIS system you must first export a picture in one of the formats mentioned.

3.4.2 Satellite Map

Alternatively, you can also create a picture yourself using satellite-based map material. Click the Map View button (shown above).

The “MapView” application starts. With this application, screenshots of GoogleMaps can be made and imported (this function is only available when an Internet connection exists). If a GPS mouse is connected, the exact position of the measurement can also be saved as GPS coordinates and the corresponding map loaded in the office later.

Please note: The use of map material on the Internet is subject to special conditions of use laid down by the respective providers of the map material. With such use, you accept the terms of the providers of the material. Please consult these terms and conditions beforehand.

3.4.3 Undo the Last Drawing Step


3.4.4 Delete a Drawing

3.4.5 Create a New Page

3.4.6 Select the Line Colour

3.4.7 Select the Fill Colour

3.4.8 Comment About a Measurement

Enter comment about a measurement. This comment will also be saved and printed out.

3.4.9 Graphic Symbols

The activated graphic symbols can be positioned on the drawing simply by a click of the mouse.


3.4.10 Drawing on the map

The chosen figure can be drawn on the drawing using the mouse.

3.4.11 Loading Additional Symbols

Loading a symbol to be positioned on the drawing. Further symbols can be created using a drawing program (not supplied). BMP format is supported.

3.4.12 Insert Text in the Drawing

Insert a text window in the drawing. The text must first be entered in the input field above.

3.4.13 Load Correlation

A saved measurement can be loaded. If sound data has been saved this is also loaded and can be played back afterwards.

3.4.14 Save Correlation

Correlation and report are saved. Sound data can also be saved as a WAV file.

3.4.15 Printing correlation

Press button (15) to produce a printout of the correlation including report. Printing is performed by the default printer.

3.4.16 Help / Operating instructions

The operating instructions supplied are called up in pdf-file form.


3.5 Configuration Display

In the Configuration Display, various basic settings can be made.

3.5.1 Skins

To enable the interface to be adapted to the particular taste of the user, various user interface designs are provided that can be selected here. You can also create your own by copying existing images into a folder and adapting the icons using a graphics program to suit your personal preferences. This should, however, only be carried out by experienced users. Support for picture creation is not available.

3.5.2 2D / 3D

Here you can set the choice of display for the 2D / 3D correlation (see Correlator Display button (9)). The display that you choose will depend on your personal ideas.

3.5.3 Change the Measurement Unit to Metric or Imperial

Select your desired measurement unit by selecting the relevant option.


3.5.4 Reset Settings

Please exercise the greatest care when carrying out this function!

This can undo all user settings and return the software to its original state. Saved measurements are not affected by this.

3.5.5 Defining User Name

The user name entered here appears in the header of the printed measurement report.

3.5.6 Choose a Logo for the Printout

The logo chosen here appears in the header of the printed measurement report. GIF format is supported.

4 Charging / Operation with external power

The transmitters are charged via the headphone socket with the supplied power unit or directly powered (also via a vehicle LK13 connection cable from 12 V DC).

The E-Box is powered directly through a USB port at your PC.


5 Technical Data

5.1 HL 6000 PC Correlator

PC/Notebook >1 GHz CPU>512 MB RAM>20 GB hard diskUSB 2.0Windows 98 and higher

Power supply E- box Via USB

Connections Aerial, headphones (PC), USB

Radio Frequency 433 MHz

Operating Temperature (without PC) -4° F to + 122° F (-20° C to + 50° C)

Dimensions 3.94 x 5.91 x 1.57 in. (100 x 150 x 40 mm)

Weight (without PC) 0.88 lbs (400 g)

5.2 TR A / TR B Transmitters

Screen LCD, 2 x 16 charactersDisplay Battery status, noise level, equipment status

Buttons On/off/illumination, radio on/off, auto/man. volume

Radio Frequency 433 MHz

Transmitted Power < 500 mWOperational Time / Charge Time > 15 hours / < 3 hoursPower Supply Internal NiMH battery,

external 12V DC (car adapter) or 110V AC

Interfaces Sensor/hydrophone connection, aerial, headphones/charger

Protection Class IP 67 when operating

Operating Temperature -4° F to + 122° F (-20° C to + 50° C)

Dimensions 9.06 x 4.33 x 7.48 in (230 x 110 x 190 mm)

Weight 5.07 lbs (2.3 kg)


5.3 PAM CORR Sensors

Sensors Piezo sensor with active amplifierConnection Cable Highly flexible silicone cable

Adapter Magnetic Adapter

Operating Temperature -4° F to + 122° F (-20° C to + 50° C)

Dimensions 3.54 x 3.07 in (90 x 78 mm)Operational Time / Charge Time > 15 hours / < 3 hours

Weight 0.88 lbs (0.4 kg)

Protection Class IP 67

6 Accessories

1. Hydrophone: PAM HYDRO

2. HL 6000 Mobile Commander

3. Various pipe and valve adapters for HL 6000 PC Correlator sensors

a. Pipe adapter for non-magnetic access points 0.70 in - 0.98 in (20 – 25 mm)

d. Angle adapter

e. Extension rods (VST-T1)

Contact InformationVivax-Metrotech Corporation3251 Olcott Street,Santa Clara, CA 95054, USAWebsite : www.vivax-metrotech.comSales & Sales Support:T/Free : +1-800-446-3392Tel : +1-408-734-1400Fax : +1-408-734-1415Email : [email protected]

Application Support:T/Free : +1-800-624-6210Tel : +1-408-454-7159Fax : +1-408-743-5597Email : [email protected]

Service & Repairs:T/Free : +1-800-638-7682Tel : +1-408-962-9990Fax : +1-408-734-1799Email : [email protected]

All Other Department:T/Free : +1-877-330-1647Tel : +1-408-734-3880Fax : +1-408-962-9993

CanadaVivax Canada Inc. 400 Esna Park Drive,Unit 17, Markham,Ontario, L3R 3K2, CanadaTel : +1-289-846-3010Website : www.vivax-metrotech.comEmail : [email protected]

EuropeSebaKMTSeba DynatronicMess-und Ortungstechnik GmbHDr.-Herbert-Iann-Str. 6,96148 Baunach, Germany.Tel : +49-9544-680Fax : +49-9544-2273Website : www.sebakmt.comEmail : [email protected]

Australasia SebaKMT AUSUnit 1, 176 South Creek Road,Cromer NSW 2009, AustraliaTel : +61-2-9972-9244Fax : +61-2-9972-9433Website : www.sebakmtaus.comEmail : [email protected] [email protected]

Leidi Utility Supply (Shanghai) Ltd.Rm405 3rd Building No. 641, Tianshan Rd,Shanghai, China 200336Tel : +86-21-5187-3880Fax : +86-21-5168-5880Website : www.leidi.comEmail : [email protected]

Documents

Water Leak Detection System · 3.1.4 Correlation Function Display 7 3.1.5 Diagramatical Representation of Pipe 7 3.1.6 Displaying Transmitters A and B 7 3.1.7 Current Pipe Data 7