Gutermann AQUASCAN 620L Operating Manual
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Gutermann AQUASCAN 620L Operating Manual

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AQUASCAN 620L
Operating Manual
JW V1.2 Date November 2016

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Summary of Contents for Gutermann AQUASCAN 620L

  • Page 1 AQUASCAN 620L Operating Manual JW V1.2 Date November 2016...

  • Page 2: Table Of Contents

    Contents Indications for Use ..................2 Symbols ....................2 Safety ....................3 Warning ....................3 Intended Use ..................3 System Components ................4 Charging all equipment ............... 5 Quick Start Guide ..................5 Sensors ....................18 Positioning of Accelerometers ............19 Antenna Setup ........

  • Page 3: Indications For Use

    1. Indications for Use It is essential to read the operating instructions carefully and completely before using the first time the equipment and software. They contain important information on safety, installation and use. Keep these instructions in a safe place. Symbols Warning of dangerous situations that can cause injury and damage to the devices.

  • Page 4: Safety

    Gutermann distributor. When using the software or the equipment, make sure you adhere to any applicable regulations, in particular traffic regulations. Warning The Aquascan 620L Correlator contains a very powerful magnet. The operation of cardiac pacemakers and implanted defibrillators can be influenced. People...

  • Page 5: System Components

    System Components The AQUASCAN 620L consists of: • Windows operated Tablet, • CommLink unit • Two radio-operated sensors, • Battery chargers AC mains and DC, • Antennae & Cables, • Hydrophone sensors & Cables, • AQUASCAN 620L software. AQUASCAN AQ620L 4/35 Version 1.2...

  • Page 6: Charging All Equipment

    Charging all equipment The Sensors and Commlink contain rechargeable batteries and can be charged either from AC mains electricity (110 -240v) using the charger supplied or from the 12v DC socket in a car. All 3 components maybe charged at the same time from the red lead supplied. Remove the red cap from the 12v Cigar plug on the red lead and insert it into either the AC mains charger socket for charging in the office or directly into the 12v socket in the car.
  • Page 7 Figure 2 Tap the Bluetooth Symbol The Bluetooth Manager opens then tap New Connection Figure 3 New Connection AQUASCAN AQ620L 6/35 Version 1.2...
  • Page 8 Use Express mode and tap next Figure 4 Express Mode The Commlink serial number appears in the window, highlight it and then Next. Figure 5 Choose the Device AQUASCAN AQ620L 7/35 Version 1.2...
  • Page 9 In the following window enter 4 x Zero (0000). Figure 6 Bluetooth Pin code The final window will confirm the setup is complete and identify the Com Port (40 in the example below). Take note of the Port number. Figure 7 Com port setting AQUASCAN AQ620L 8/35 Version 1.2...
  • Page 10 Open the AquaScan 620L software and choose Preferences, then select the matching Com Port in the drop down. Figure 8 Match the Com port in AQ 620L Software Tap the Antenna symbol to connect to the Commlink which appears in the bottom right of the main screen.
  • Page 11 Deploy both Sensors by magnetically attaching them to the pipe fittings. If hydrophones are used ensure the water connections are leak free. Figure 10 switch on the Sensors Switch the sensors on by pressing the push button on the top for 1 second until the red LED is on constant before walking back towards the correlator which should be located half way.
  • Page 12 Figure 11 the sensor symbols 2. It’s important to listen to both sensors before correlating to make sure that a clear sound is being heard. Use the A and B flag buttons to choose either or both sensors. Listen to the filtered sound by clicking the wave symbol left of the A and B flags.
  • Page 13 Use the actual buttons on the Tablet to adjust the volume to suit. Figure 13 Volume Adjust 3. Press the Pipe key and enter distance (measured between sensors with a wheel) and material or sound velocity. Verify the indicated data below the symbolic pipe in the chart.
  • Page 14 Start the correlation process by tapping the red spot button. Allow the process to continue until a good quality correlation of 80%> is achieved. This may take 15 to 20 minutes for difficult, quiet leaks. The longer the duration of correlation the more data is collected by the software for analysis which can lead to a more accurate result.
  • Page 15 4. To activate the filters tap the Auto button and one or two automatically generated filter regions will appear. The user can switch between the filter regions. See filter section for a detailed explanation. 8. Adjust the filter setting to enhance the measurement quality and cleanness (reduced minor peaks and spicks).
  • Page 16 Figure 18 Manual Filter Tab the looking glass symbol to activate the spot filter which cleans up the correlation by removing the majority of background noise and focuses on the selected peak. Tap in the correlation window to select different peak positions. Before: Figure 19 before applying Spot Filter AQUASCAN AQ620L...
  • Page 17 After: Figure 20 after applying Spot Filter 5. Press the Save key shown above (otherwise this measurement will automatically be deleted when starting a new measurement). Figure 21 save measurement Use the return key on the tablet to save the measurement. AQUASCAN AQ620L 16/35 Version 1.2...
  • Page 18 Figure 22 Scroll through saved measurement Scroll through the saved measurements using the arrow keys above.The AQUASCAN 620L software also may be run off-line, allowing further analysis, correlating saved measurements, print-outs, etc. without being connected to the Commlink . AQUASCAN AQ620L 17/35 Version 1.2...

  • Page 19: Sensors

    3. Sensors Figure 23 Top View of B Sensor Figure 24 Side View of B Sensor For switching the sensors on or off, please press on/off button for at least one second. The Sensors will remain on for a period of 2 hours for continuous use, thereafter they will turn off.

  • Page 20: Positioning Of Accelerometers

    3.1 Positioning of Accelerometers Figure 25 the ‘A’ Sensor attached to a valve spindle It is critical the accelerometer is positioned in the location that has the least interference and the clearest leak noise. Moving the sensor 10 cm can make a massive difference to your performance. The listen function (refer to page 35) should always be used on sensor deployment and the sensor should be positioned so that the highest frequency noise is heard minimising the effect of electrical and...

  • Page 21: Installation Of Hydrophones

    3.2 Installation of Hydrophones • Connection of cable disables the accelerometer • Blow in Hydrophone and use the listen buttons on the Main Screen to check the sound is audible. • Flush Tapping. • Connect Pressure gauge to check the pressure •...
  • Page 22 Figure 26Thread taping the adaptors • Ensure there are no leaks on any of the fittings between the hydrophone and pipe. PTFE or Thread tap should be used to create a water tight seal. • Bleed the air from the hydrophone •...

  • Page 23: Main Screen

    Figure 28 removed Hydrophone Bleed Valve 4. Main Screen Figure 29 Main Screen Shot This window shows detailed information about leak location measurements and allows the user to carry out new measurements. It has a task part on the right hand side, and a result part which consists AQUASCAN AQ620L 22/35 Version 1.2...

  • Page 24: Measurement Graph/Chart

    of a graphic display of the measurement, a presentation of the location on the pipe, of the signal level and the correlation level. 4.1 . Measurement Graph/Chart Figure 30 Unfiltered Correlation Graph/Chart The measurement chart(s) display(s) the processed measurement data for a visual evaluation and analysis of the measurement result.

  • Page 25: Leak Location

    From a mathematical definition, a correlation function always has positive and negative values. The main peak is normally positive. When it is negative, it may be because it is from a resonance. 4.2 . Leak Location Figure 32 leak location The pipe image displays the result of the correlation measurement.

  • Page 26: Correlate- Start, Pause And Stop Measurement

    Battery: When connected to the computer, the battery symbol will show the battery charge level of the Link unit. 4.5 Correlate- Start, Pause and Stop measurement Figure 34 Action Keys By clicking these keys you can start, interrupt or stop a new measurement (from left to right, only when the Link unit is connected).

  • Page 27: Listening To The Sensors

    • Cog Symbol- enter the menu for various options/settings • ? – Opens a help file 4.7 Listening to the Sensors Figure 37 Listening key and Volume Slider Press Sensor A and or Sensor B for listening to the sound signal recorded by sensor A or sensor B.
  • Page 28 Figure 39 Settings window When the Cog symbol is tapped a separate window will appear with 3 tabs. The connection tab is simply to select the correct com port that the link is Bluetooth paired with. Figure 40 Display Settings Within the display tab there are many options.

  • Page 29: Working With Correlation Recordings

    Figure 41 Spectrum Chart Edit the visibility of the series in the Spectrum Chart options allows the user to choose to show the various spectrum lines. By ticking the box next to Logger A, Logger B, Cross or Coherence will make the lines visible.

  • Page 30: Entering Pipe Sections

    Share the file by attaching the wav file to an email or by saving the file to a USB memory stick/drive. A colleague running the AQ TM2 software in another location can view and analysis the correlation by opening the wav file as mentioned above. Figure 43 Print a Correlation Print: Print out the measurement which is shown on screen.
  • Page 31 Figure 45 Entering Pipe details You have to enter the following settings: If the pipe section between sensor A and sensor B consists of one material with a constant diameter, Total: is 1 segment (to be set with the arrow key or with the keyboard). Type the length by using the numeric keys or the virtual keypad.
  • Page 32 The correct sound velocity is very important for the precision of the leak location result. The nearer the leak is to one of the sensors (creating a large time delay), the more accurate the velocity value must be. It is very important to understand that the sound velocity table, defined by pipe material and diameter, is only theoretic and that the specific real velocity might differ from site to site.

  • Page 33: Filter

    7. Filter Figure 46 Filter Window The correct filter setting may be of great importance for a precise measurement result under particularly difficult environmental conditions. In the Filter section the filter setting can be adjusted to the specific measurement conditions. The filtered leak measurement contains all the signal parts of the unfiltered measurements between the lower and the upper frequency limit.

  • Page 34: Manual Filtering

    The choice between 50HZ or 60HZ depends on the electrical supply in the country you reside. EG USA and Philippines = 60HZ, Most of Europe, Australia, New Zealand, Singapore, Malaysia = 50HZ. 7.2 Manual Filtering The first step in manual filtering is to set a filter bandwidth that incorporates the entire frequency range generate by the leak or leaks 0 to 2000Hz.

  • Page 35: Auto Filter

    7.3 Auto Filter Figure 49 Example of no Filter The example in figure 66 has no filter applied to the correlation. When the Auto filter is applied in the next example the correlation is a lot cleaner. Figure 50 Example of Auto Filter AQUASCAN AQ620L 34/35 Version 1.2...

  • Page 36: Spot Filter

    The purple highlighted block in the Spectra window in figure 67 is the bandwidth which gives the best auto filter result. The frequency of the purple block is shown under the Filter buttons on the left side. The grey filter region is another possible filter that the software sometimes calculates;...
  • Page 37 Figure 52 Example of Spot Filtering with 2 possible The example above has two filter regions, purple which is currently selected and the best filter option. The grey filter region is another possible option. Use your observation to select the cleanest correlation. Figure 53 example of Spot Filtering second option The result of the second possible option is shown above.

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