Safety Level Maintenance Manager at Kemira Oyj, Former Chairman of the Board of Directors of the Finnish Maintenance Society, Chair of the EurEau Committee on Economics and LEgal Affairs, expert at IGWP, the Polish Waterworks Chamber of Commerce, Director of Development, Finnish Safety and Chemicals Agency (Tukes), Malene Grouleff & Marianne A. O. Andersen. Earlier generations of Ultrasonic Gas Leak Detectors only “listened” for the gas leak noise in the ultrasonic frequency range from about 25 kHz and up, but by means … Click here for digital Maintworld and editorial archive. This greatly increases the likelihood of detection. It all comes down to frequency. Once the general area of the compressed air leak has been located, most ultrasound instruments will come with a focusing probe that can be slipped over the end of the airborne scanning module on the instrument to more finely narrow the field of view to more precisely identify the location of the leak. Such a programme is designed to identify and repair compressed air leaks before they become a large problem and it can save time, money, and energy. An ultrasonic leak detector … The Ultrasonic Steam Trap Leak Detector converts and amplifies the 35,000 – 45,000 cycles to frequencies that can be heard by the human ear. Digital Ecosystems – Because the Customer is Always Right, How to get the Block into the Supply Chain, Keeping Doors Open and Closed at the Same Time, Advances in cellulose-based food packaging material move to testing phase of industrial production, Ship shape: vibration sensors improve onboard maintenance, SKF Helps Leading Russian Steelmaker Cut Manufacturing Costs and Carbon Emissions, ODVA Enters into Agreements with FDT and Fieldcom Group; Continues XDS Development, Maintenance: A Necessary and Important Function in the Future, Computerized Maintenance Management System (CMMS). … Through sophisticated circuitry, Whisper locates the … Adrian Messer, CMRPadrianm(at)uesystems.com. Ultrasound technology has become one of the essential tools in predictive maintenance, condition monitoring and reliability, due to its quick learning curve, ease of use and flexibility. Euromaintenance 2016 will take place in Athens at the end of May. These sounds are converted down to the audible range where they can be heard in a headset or viewed on a meter. Here is an example: If you have a sound source that is measured 40 dB(Z) (typically a small leak or mid-sized PD) from a meter’s distance and a microphone is able to pick up sounds that are above 0 dB(Z), in normal conditions, you can detect the sound source from a distance of about 100 meters with 1 kHz and from about 10 meters with 100 kHz (read more about the detection range). will help to take away any confusion of what the inspector is finding and becoming more aware of where competing ultrasonic noise is coming from. FI26650896Pasilanraitio 9 B00240 HelsinkiFINLAND, CareersTerms of usePrivacy PolicyQuality PolicyNL Acoustics Terms and Conditions. Compressed air is an expensive utility whose maintenance and cost is generally taken for granted. As part of the digital tools portfolio launched last year to improve productivity and collaboration, MyAssets provides instant access to device documentation, replacements, spares, and walkdown reports to help plant personnel better maintain and manage the useful life of their Emerson devices. For compressed air and compressed gas leak detection, the source of the ultrasound is turbulence. Once an ultrasound instrument has been selected, the planning of the compressed air survey can begin. As the compressed air leaks are found with the ultrasound instrument, a tagging system should be in place to tag the leak at its site. They work like an AM radio, manually tuned heterodyne only ultrasonic detectors … The ultrasonic leak detector SONAPHONE is designed for a quick and precise location of leaks in compressed air, inert gas and vacuum systems. Our ultrasonic leak detectors can find leaks in any type of refrigerant or gas.  announced that it has entered into separate agreements to further integrate FDT and FDI technologies into EtherNet/IP™. By scanning the test area with an Ultraprobe, a leak can be heard through the headset as a rushing sound or noted on the display/meter. An effective ultrasonic compressed air leak survey will focus on seven key factors: By implementing these steps, a typical manufacturing plant could reduce its energy waste by roughly 10 to 20 percent. One thing to keep in mind while scanning for compressed air leaks out in the facility is the fact that high frequency sound is very low energy. System leaks … Having an ultrasonic leak detector allows you to go out to the jobsite and find high frequency leaks that would otherwise go unnoticed by the human ear. Make note of any safety hazards and any areas where accessibility to the test area may difficult, or may require the use of ladders, extra PPE, or access to locked areas. Item Ultrasonic Leak Detector AC Frequency Response 35 kHz to 45 kHz Function Quickly Detects and Pinpoints the Origin of Ultrasonic Sound Produced by Arcing … Otherwise, issues of spatial aliasing will occur, meaning erroneous results and sound sources displayed at invalid locations. Since compressed air systems inherently have leaks, regardless of piping, use, and design, implementing a compressed air leak management programme can be an economical and effective way to improve the efficiency of any compressed air system. The app allows the inspector to easily document the compressed air and compressed gas leaks, along with the associated costs. Ultrasonic’s can detect pinhole leaks with as low as 1 psi. With vacuum leaks, since most of the turbulence is on the inside of the leak, there is not as much ultrasound present; therefore, vacuum leaks are more difficult to find with ultrasound, but can still be possible if enough turbulent ultrasonic noise is present. For airborne ultrasound, compressed air & compressed gas leak detection remains the most widely used application. If you are interested in how the NL Camera can help you, do not hesitate to contact our sales department for further information. For ultrasound instruments that are on a fixed frequency, or where frequency tuning is not a feature, 38kHz is usually the frequency setting that the instrument is fixed at. Our approach is different: The NL Camera automatically detects sounds that resemble air leaks, giving better results with less effort required from the user. Nonetheless, you often have interfering noise also at higher frequencies. INFICON Whisper with Accessory Kit, Enhanced Ultrasonic Leak Detector, 711 … Part of the goal of the compressed air leak survey could be to identify areas where compressed air is being misused, and look for alternatives that could perform the same function without having to use costly compressed air. The distance to the source of the problem plays an important role in frequency selection. However, this is not the truth—in some cases, it may be beneficial, but in others, it can harm the detection sensitivity. VTT Technical Research Centre of Finland Ltd is testing Thermocell plastic film made of cellulose and fatty acids in the production of food packaging in cooperation with Arla Foods, Paulig, and Wipak. After the initial walk through, select one area or zone to test at a time. Demo source code and schematics are provided to accelerate the development of ultrasonic … Recent advancements in compressed air leak detection and reporting allow for the quantification of the money lost from these compressed air leaks. In every case, ultrasonic air leak detection is a proactive and reliable way of finding small problems before they become more. The logistics of the leak detection route should now be considered. Often, when a compressed air system struggles to meet the current demands on the system, spare compressors are rented and used as back-ups, or time and effort is placed in installing an additional compressor to the existing system. Norwegian ship owner Solvang has introduced predictive maintenance to its fleet of tankers by investing in the new system for manual vibration monitoring, Enlight ProCollect from SKF. Plants that aren't maintained can easily waste up to 30% of compressor output through air leaks that go undetected. Sustainability transformation: Are you ready for the change? Ultrasonic leak detection apparatus US4960079A (en) * 1989-08-03: 1990-10-02: Marziale Michael L: Acoustic leak detection system US5089997A (en) * 1990-11-02: 1992-02-18: Pasar, Inc. Ultrasonic energy detector with frequency … Leak detection has been one of the most common applications for ultrasound, but we now see the technology more and more being used together with sound analysis software to diagnose specific mechanical and electrical faults. It is the ideal moment to reflect on maintenance in a European context. Turbulence is created when a compressed gas inside of a pipe or vessel exits to low pressure or atmosphere through a tiny crack or orifice. This ultrasonic leak detector converts ultrasound signals produced by industrial machinery into easily recognizable audible sounds for a user to evaluate the … The sensor and electronics are able to detect these ultrasound frequencies (25 to 100KHz), while excluding audible frequencies … Time to Invest in Europe’s Water Infrastructure, Tips on How to Accelerate the Circular Economy, Everything Should Be Smart - But It Must Also Be Safe, 5 Important Maintenance Metrics and How To Use Them. ... AC Frequency … Locate air, steam, gas and vacuum leaks faster and easier than ultrasonic leak detection… Emerson’s New Digital Toolset Enables More Efficient Maintenance Planning and Work Execution, How To Prepare A Construction Site For Winter, People are Key – Also in the Digital Age, Maintworld – 10 Years of Building International Connections in Industrial Maintenance. The higher the frequency, the quicker sounds attenuate over distance, causing the sensitivity and detection range to suffer. 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