ADS® Eureka Digital System User Manual October 2009 QR 775020 A0 ADS LLC 4940 Research Drive Huntsville, AL 35805 Telephone (256) 430-3366 / Fax (256) 430-6633 www.adsenv.
ADS Eureka Digital System User Manual Copyright © 2009 ADS® LLC. All rights reserved. ADS® is a registered trademark of ADS LLC. Microsoft®, Windows®, and Internet Explorer® are registered trademarks of Microsoft Corporation. Intel® and Centrino® are registered trademarks of Intel Corporation. All other brand and product names are trademarks or registered trademarks of their respective holders.
ADS Eureka Digital System User Manual Table of Contents Chapter 1 Introduction ...................................................................... 1 System Features ...........................................................................................3 Transmitters ...........................................................................................3 Automatic Velocity Measurement .........................................................3 In-Case Battery Charging .............................
ADS Eureka Digital System User Manual Chapter 5 Eureka Digital Software ................................................. 21 Splash Screen .............................................................................................22 Main Screen ...............................................................................................23 Main Menu.................................................................................................24 File Menu ...............................................
ADS Eureka Digital System User Manual CHAPTER 1 Introduction The ADS® Eureka Digital System is the latest model in the proven Eureka family of high-performance leak noise correlators designed for locating leaks in buried water pipes. Combining advanced technology, operational flexibility, and simplicity, Eureka Digital offers a comprehensive solution for leak location, even under conditions ranging from substantial background noise to minimal leak noise.
ADS Eureka Digital System User Manual 2-Transducer Method The 3-transducer method incorporates a third (yellow) sensor for measuring velocity. Employing this option increases the accuracy of locating the leak position.
ADS Eureka Digital System User Manual System Features The following sections describe some of the components and features included in the ADS Eureka Digital System. Transmitters The transmitters offer real-time (radio) operation or delayed recording (logging) operation, which eliminates radio range problems associated with conventional correlators. A transmitter also includes an integrated sensor that can connect directly to the pipe.
ADS Eureka Digital System User Manual System Components and Options Two accelerometers Two digital transmitters Digital receiver module (incorporating third signal input) Choice of one of the following: Small handheld computer Ruggedized handheld computer Software for laptop Vehicle antenna Headphones Rugged carrying case (with integrated battery charging capability) Optional Equipment and Software Hydrophones Correlator reference unit Accelerometer grip attachm
ADS Eureka Digital System User Manual ADS No-Hassle Warranty and Return Policy The following sections detail the hassle-free warranty and return policy for the ADS Eureka Digital System. New Product Warranty ADS will repair or replace any Eureka Digital System equipment (supplied by ADS) that is defective in materials and/or workmanship for up to two (2) years following the date of shipment from ADS.
ADS Eureka Digital System User Manual refund, provided the condition of the equipment is in the same condition as sold, except for expected or normal wear and tear for the period of use.
ADS Eureka Digital System User Manual CHAPTER 2 Principles of Leak Noise Correlation Leak noise correlation is used to detect leaks in pipes with a positive internal pressure, where leaks allow a loss of flow to the outside. The movement of fluid through the leak causes rapid pressure changes around the site of the leak, establishing a noise source at the leak. This noise travels in both directions, at the same velocity, along the pipe from the leak.
ADS Eureka Digital System User Manual Methods for Locating Leaks Previous methods of leak location relied on an initial detection of a noise, which was then traced along ground level to identify the location of the maximum noise. This location was assumed to be directly above the location of the leak. The equipment used for this method included listening sticks and stethoscopes, but these were difficult to use if the noise proved too faint or loud for accurate location.
ADS Eureka Digital System User Manual pipe under investigation, ensuring the greatest accuracy in locating the leak.
ADS Eureka Digital System User Manual Sensor Position Correlator operation relies on the location of the leak existing between the two sensors. However, two contexts can prevent this from occurring. The solution requires moving one sensor before a successful correlation can be performed.
ADS Eureka Digital System User Manual CHAPTER 3 System Components The standard Eureka Digital System consists of the following components: Red transmitter (including antenna) Blue transmitter (including antenna) Two accelerometers Receiver unit (includes antenna and receiver belt pouch) Headphones Magnetic vehicle mount antenna Car charge cable Mains charger Transmitter programming Y-cable Receiver unit USB cable Carrying Case Software CD The following opti
ADS Eureka Digital System User Manual Descriptions The following sections provide brief descriptions of the Eureka Digital System components.
ADS Eureka Digital System User Manual Pushbutton switch The pushbutton switch turns on and off the transmitter unit. Refer to Transmitter Control and Indicators below for more information. LEDs The LEDs display information about the transmitter. Refer to Transmitter Control and Indicators below for more information. Handle The handle exists for carrying and positioning the transmitter.
ADS Eureka Digital System User Manual LED Response While Charging Under normal circumstances, when the charger is plugged in, the LED bar graph will ramp up repetitively. This indicates that the battery is undergoing a fast or top-off charge. When the fast charge is complete and the battery is just receiving a tricklecharge, the bar graph will stop ramping up and all LEDs in the bar graph will be off, except the top red LED. This LED will flash quickly once every 2 seconds.
ADS Eureka Digital System User Manual Receiver Unit The receiver unit receives power from the USB port of the computer and, therefore, must be connected to the computer when in use. The unit receives signals from the transmitters. An accelerometer also can be connected to the receiver for a 3rd sound input into the system (designated the yellow channel). The receiver unit uses a screw-on antenna and can be belt-mounted and used with a laptop computer for greater flexibility.
ADS Eureka Digital System User Manual Car Charge Cable The car charge cable can be used to connect the case to a power supply in a vehicle to recharge the two transmitters in the case. The cable connects to a socket on the side of the case. The transmitters in the case must be connected to the two charge cables in the case. Mains Charger The mains charge cable can be used to connect the case to an AC power supply to recharge the two transmitters in the case.
ADS Eureka Digital System User Manual Small Tablet Computer (optional) A small, battery-powered tablet computer with a touch screen is available to facilitate portable use of the Eureka Digital System. Typical small tablet computer For more information on the computer, refer to the reference material supplied with the computer. The computer comes in a ruggedized case with ample space for the computer peripherals.
ADS Eureka Digital System User Manual Typical ruggedized touch screen computer 18
ADS Eureka Digital System User Manual CHAPTER 4 Getting Started Eureka Digital Systems supplied as a complete system (including a PC) are set up and ready for use. For systems that are not ready for use, refer to the Hardware and Software Setup on page 20.
ADS Eureka Digital System User Manual Hardware and Software Setup This section includes the minimum software and hardware requirements, software installation instructions, and power management recommendations. Software and Hardware Requirements To run the PC software, the computer must meet the following minimum hardware and software requirements: Microsoft® Windows® XP (Service Pack 2) operating system 1.
ADS Eureka Digital System User Manual CHAPTER 5 Eureka Digital Software ADS recommends reading this chapter to become familiar with the Eureka Digital Software. Launch the software from the Windows Start menu. A shortcut also may be created to launch the software directly from the Windows desktop.
ADS Eureka Digital System User Manual Splash Screen The Eureka Digital splash screen displays for approximately 5 seconds, allowing the software to load.
ADS Eureka Digital System User Manual Main Screen The main window includes 4 areas: Main Menu Toolbar Display Area Control Area Main Screen without loaded data 23
ADS Eureka Digital System User Manual Main Menu The main menu contains the following submenus: File Run View Delayed Recording Correlation Mode Help Menu File Menu The File menu contains the following options: New Selecting this option clears the current data and allows the user to set a new configuration as required. Open Selecting this option displays the Open dialog listing the data available for loading into Eureka Digital.
ADS Eureka Digital System User Manual Open dialog When a data file is opened, a correlation is performed on the data. The user may drag and drop items to move them on the dialog as required. Holding down the Ctrl key while dragging and dropping creates a copy of the file. Right-Click Options Right-clicking on an item in the Open dialog displays an options menu.
ADS Eureka Digital System User Manual The following options are available: Cut Selecting this option cuts and places the selected item on a clipboard to be pasted. Copy Selecting this option copies the selected item. Delete Selecting this option deletes the selected item. Rename Selecting this option places the filename in edit mode to be renamed. Save Selecting this menu option saves the current data.
ADS Eureka Digital System User Manual Typical Eureka Digital Test Report Exit Selecting this menu option closes the Eureka Digital Software.
ADS Eureka Digital System User Manual Start Selecting this option initiates the correlation process. Stop Selecting this option discontinues the current analysis. Analyze Selecting this menu re-analyzes a previous correlation result. It includes two options: Rapid Selecting the rapid option initiates re-correlation of the current data. This occurs quickly without playing the sounds and is followed by a display of the results.
ADS Eureka Digital System User Manual Reverse Selecting this option swaps the red and blue transmitter positions. Toolbar This menu includes two options: Show and Hide. The option available depends on the current status of the toolbar. Selecting the available option either displays or hides the toolbar. Magnify Correlation Selecting this option displays the correlation results in detail on the main screen. When the details are displayed, the menu option changes to Cancel Magnify Correlation.
ADS Eureka Digital System User Manual Delayed Recording Menu This menu includes two options: Program Readback Program From this menu option, the user can set the transmitters to start recording after a designated delay and for a specific time. This is useful when it is not possible to maintain reception from the transmitters. To start programming, the transmitters must be connected to the receiver via the ycable and turned off.
ADS Eureka Digital System User Manual The user can unplug the transmitters and put them in the required location for recording. However, it is important to place the accelerometers correctly on the pipe. Note: Do not turn on the transmitter. The dialog will display the countdown to the start of recording and then the duration during recording. After recording is complete, the user can collect the transmitters and read back the data.
ADS Eureka Digital System User Manual The dialog shows the colored blocks corresponding to the transmitters connected to the y-cable. The dialog also displays the amount of data that is available. To initiate readback, click on the Next button. The dialog displays the readback progress. The red transmitter is read back first, and then the blue transmitter.
ADS Eureka Digital System User Manual When data readback is complete, the main screen displays and data correlation occurs. Correlation Mode Menu This menu includes the following options: Two Transducers Three Transducers Two Transducers Select this option for normal leak location and optimal velocity measurement (using an artificial noise source). Three Transducers Select this option for leak location with automatic velocity measurement. ADS recommends this method.
ADS Eureka Digital System User Manual Toolbar Buttons The toolbar includes the following buttons: Button Function Description Open Opens the Open dialog (Refer to Open on page 24 for more information.) Save Saves the current data (Refer to Save on page 26 for more information.
ADS Eureka Digital System User Manual Display Area The display area includes the following information: Correlation Display Pipe Display Spectrum Display Tracker Correlation Display Correlation display After correlation is complete, the cursor displays above the best calculated peak. Cursor Movement Moving the cursor moves the corresponding cursor on the pipe display to indicate the relative position.
ADS Eureka Digital System User Manual Zoom Mode – This button indicates that Zoom Mode is selected. Click on the button to change to Peak Suppression Mode. Peak Suppression Mode – This button indicates that Peak Suppression Mode is selected. Click on the button to change to Zoom Mode. Zoom Zoom into part of the display in the following way: 1. Make sure the Zoom Mode is selected. 2. Place the cursor at the left end of the required area. 3.
ADS Eureka Digital System User Manual This shows when a connection exists between the PC and the receiver. Pipe Display The pipe display shows the pipe and the transmitters in a schematic format, including the appropriate lengths of pipe and the pipe material. Set the pipe data using the pipe data tab. Spectrum Display The spectrum display shows the amplitude and frequency of the data. The display will show up to three traces.
ADS Eureka Digital System User Manual Tracker The data tracker display develops throughout the correlation process. Over time, the line solidifies and changes color to indicate confidence in the correlation peak. Tracker Colors The colors of the dots represent the following: Black No confidence in correlation peak Red Low confidence in correlation peak Yellow Medium confidence in correlation peak Green High confidence in correlation peak .
ADS Eureka Digital System User Manual Zoomed in Tracker display Select a specific area of the Tracker display with the mouse to perform a software correlation analysis for only the selected area. This can be beneficial in contexts such as high background noise or traffic areas for choosing a time period in which a correlation peak begins to form (e.g., when traffic noise is reduced). To return to an analysis of the whole area, click on the button above the Tracker graph.
ADS Eureka Digital System User Manual Control Area The control area includes 3 tabs for managing the following: Pipe Filters Sound Pipe This option is designed for setting up the pipe network information. The top portion of the display shows the sections of pipe. Pipe sections can be added, deleted, and moved up and down using these buttons. The sequence of the pipe sections from left to right on the main display reflects the order in which the sections appear on the list.
ADS Eureka Digital System User Manual Quick Start Enter the following for pipes made of one material with only one diameter, and then click Apply: Material Diameter Pipe length Add Pipe Note: Add pipe sections only when more than one pipe material or diameter exists. Click on this button to add a pipe to the list. The new pipe corresponds to adding a section of pipe section to the right in the main pipe display. The software adds a default pipe type.
ADS Eureka Digital System User Manual Move Pipe Down To move a pipe down in the list, click on the pipe and then click on the down button as required. Moving a pipe down in the list moves it to the right in the main display. Reverse The reverse button swaps the red and blue transmitters for ease of viewing. Edit (Pipe Material and Velocity) Selecting a pipe in the pipe selection list and then clicking on the edit button enables the user to edit the default pipe data for that pipe.
ADS Eureka Digital System User Manual Restore Defaults Selecting this button restores the program defaults where changes have been made. Transducer Positions This section of the Pipe tab is for setting the transmitter information. Use each drop-down menu to select the appropriate transmitter color, from left to right, in the pipe network. A grey selection indicates no transmitter. Consider using the yellow option when using the Receiver Unit as an input with a plug-in transducer.
ADS Eureka Digital System User Manual Out-of-Bracket means the intentional leak exists at one of the sensor positions or beyond the length bracketed by the sensors, at either end. Between Sensors means the leak is reasonably close to the red or blue sensor, but within the bracketed length. For accuracy, the distance from the sensor should be less than one third of the total pipe length. For this technique, enter the pipe material and measured length using the standard method and pressing Start.
ADS Eureka Digital System User Manual The velocity value is then displayed and shown as calculated. The manufactured leak is then turned off, allowing for location of the unknown leak with improved accuracy. Note: Measuring velocity using this method does not account for more than one pipe material because it can only measure the average velocity over the given pipe length. Velocity Calculation (3-Transducer Mode) This mode involves three transducers and the actual leak (i.e., no intentional leak).
ADS Eureka Digital System User Manual The outer pair of transducers displays. The user must select a second pair of transducers and ensure that the cursor is positioned correctly at the correlation peak (for both pairs of transducers selected). The calculated velocity and resulting (more accurate) leak position display. Filters The user can select filtering options from the Filters tab. Choose either Manual filters or Auto filtering.
ADS Eureka Digital System User Manual Manual Filters Manual filtering allows the user to select up to 3 filters and enter a low and a high frequency for each filter. The user also can create filters by selecting (clicking and dragging) areas on the Spectrum graph. Auto Filter Auto filtering attempts to select the optimum filter settings. The Auto filter mode can often provide very good results. However, in certain cases, manual control of the filtering may be required.
ADS Eureka Digital System User Manual To apply filtering, click on the Apply button. To cancel the filter changes, click on the Reset button. Spectral Equalizer Selecting this option evenly distributes the power across the frequency spectrum to provide more equal weighting at every frequency. This often is a very effective tool for improving correlations. Peak Enhancer Selecting this option can enhance the peak values on the graph. Use this feature only for plastic pipes.
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ADS Eureka Digital System User Manual CHAPTER 6 Deployment This chapter contains general information on system deployment, such as selecting the appropriate type of transducer, installing the transducers, setting up the transmitters, and setting up the receiver unit. It also includes information regarding radio range, transducer distance, velocity, and filter settings.
ADS Eureka Digital System User Manual Choosing the Transducer Type Accelerometers (built-in or plug-in) are adequate for use under most conditions and offer simplicity and flexibility in deployment.
ADS Eureka Digital System User Manual Attaching the Transducers The following sections include instructions on installing accelerometers and hydrophones. Accelerometers The transmitters have magnets integrated into the base and a built-in accelerometer. This configuration typically provides good results when the transmitter is located aboveground. If the transmitter must be on the ground surface for adequate radio reception, use the remote accelerometer. 1.
ADS Eureka Digital System User Manual 6. If no leakage exists, fully open the hydrant valve to completely charge (e.g., fill) the hydrant. Filling the hydrant applies pressure to the caps, including the hydrophone assembly, on the hydrant. 7. Slowly open the hydrophone bleed valve slightly to allow air to escape. 8. Close the bleed valve once only water is escaping. Once installed correctly, connect the hydrophone directly to the transmitter.
ADS Eureka Digital System User Manual Setting up the Transmitters Set up a transmitter in the following way: 1. Attach the antenna. 2. Position the transmitter as required. 3. Turn on the transmitter by holding down the button for 2 seconds. The Hi LED will turn red. If Lo power is required, press the button just for a moment. Use Lo if the transmitter is within 66 feet (20 m) of the receiver unit.
ADS Eureka Digital System User Manual Setting up the Receiver Unit Setup the receiver unit in the following way: 1. Connect the base station antenna. ADS strongly recommends using the magnetic, roof-mounted antenna for operations inside a vehicle 2. Connect the receiver to the computer via the USB cable 3. Launch the Eureka Digital software. The green LED should illuminate. If a problem exists with the USB connection or driver, the green LED will flash.
ADS Eureka Digital System User Manual Radio Range The manufacturer tests every system at a distance of 328 feet (100 m), line-of-sight at low power (25 mWatts), with a portable receiver antenna. Radio range increases considerably in the high power mode and when using a vehicle mount antenna. The radio range from transmitter to receiver is approximately 50% of an equivalent analog radio system. Radio range is affected by traffic, buildings, and multiple transmission paths.
ADS Eureka Digital System User Manual Inter-Transducer Distance An accurate inter-sensor distance is essential to locating leak positions accurately. The accuracy of a correlation result is a reflection of the accuracy of the distance measurement. Note: A user can record and save data without entering the intersensor distance. This is useful when making an initial, preliminary recording at a site.
ADS Eureka Digital System User Manual Velocity An accurate sound velocity is essential for accurately locating leaks from the correlation result. Typically, the sound velocity obtained automatically based on the pipe diameter and material entered by the user is adequate. However, ADS recommends always measuring the sound velocity in the pipe to reduce leak positioning errors. This can be done with either 2 or 3 transducers.
ADS Eureka Digital System User Manual Filter Settings The default filter settings yield good results the majority of the time. However, occasionally modifying the filters can obtain a more definitive result. Therefore, ADS recommends storing all recordings, particularly those with puzzling or questionable results, to data files, for review and reanalysis at a later date.
ADS Eureka Digital System User Manual CHAPTER 7 Index Accelerometer, 12 Accelerometers, 14 Accelerometers, 52 Add Pipe, 41 Adjust Sound, 28 Analyze, 28 Antenna Connector, 13 Attach Transducers, 52 Auto Filter, 47 Battery Life, 13 Battery Test, 14 Built-in Accelerometer, 12 Buttons, 36 Calculate, 43 Car Charge Cable, 16 Center Correlation Suppression, 48 Charge/Accelerometer Connector, 13 Choosing the Transducer Type, 51 Coherence, 37 Control Area, 40 Correlation Display, 35 Correlation Mode Menu, 33 Curs
ADS Eureka Digital System User Manual Pipe Display, 37 Playback, 28 Power Management, 20 Principles of Leak Noise Correlation, 7 Print, 26 Program, 30 Pushbutton Switch, 13 Quick Start, 41 Radio Range, 56 Rapid, 28 Readback, 31 Receiver Unit, 15 Receiver Unit Setup, 55 Receiver USB Cable, 16 Recharging the Transmitters, 13 Report, 26 Restore Defaults, 43 Reverse, 29, 42 Right Click Options on Open Dialog, 25 Ruggedized Tablet Computer, 17 Run Menu, 27 Save, 26 Save As, 26 Sensor Position, 10 Small Tablet C
