Zcorr is a portable leak detection system that combines a network of digital correlating loggers dcls, a computer docking station, and easytouse sound analyzing software. A leak noise correlator is an electronic device used for leak detection and as a leak locator to find leaks in pressurized water or gas lines. Monitor as many leak detection teams as needed in real time. Its vga touch screen makes pinpointing water leaks easy and accurate. The system builds on the proven reputation of previous fcs correlators and includes advanced features to maximize performance. The data is available at any location, on any desktop or mobile device, via primeweb, primayers cloudbased data collection software. How to work noise correlator lc2500 fuji tecom inc. This data is then entered into a special software program on a laptop computer. The time it takes leak noise to travel from a leak to each sensor on both sides of a leak is measured by each sensor and the difference is used to precisely calculate the location of the leak.
Using the latest advances in digital acoustic technology, it combines noise logging leak detection and leak noise correlation location into a single, simple operation. Permalog patroller radio unit fully digital correlation digital sensor new sensor with improved sensitivity to low frequency noise for plastic and large diameter pipes and low pressure situations down to 1. The leak sound may be very different between the 2 loggers, both in sound level and frequency pattern, and is often not audible or otherwise discernible to a human user. The company says that this process, called crosscorrelation, is unique to the soundsens system and enables greater certainty in pinpointing leaks as it discerns leak noise profiles from other water sounds. The user can listen to the recorded noise, helping to confirm that correlation results are due to leak noise. The leak was found in a single correlation, no correction or adjustments were needed. Those sensors record and transmit the sound by radio to. The prelocation or circling in on the water leak is done by listening to directly accessible contact points, such as hydrants or valves. When retrieved the leak sound is transferred to the host software where it is.
It combines advanced acoustic detection principles with the power of cloud processing for accurate leak correlation and location. Two or more sensors are placed in contact with the pipe on both sides of the suspected leak. It utilizes the pcs soundcardusb and other multimedia components to record and playback leak noise. The secorrphon ac 200 is a multifunctional leak detector offering three functions in one. Advanced leak noise logger including correlation and remote listening. Multisensor overnight leak survey and pinpointing in one. Leak noise logger integrates correlation capabilities.
Correlators are powerful electronic devices to locate leaks on pressured pipes, where the rough location of the leak is unknown and the distances relatively high. Correlation takes place between each pod in the array and all of the others. Accordingly the software correlates this data and gives an accurate positioning of the leak or leaks. Beginning with a compact computerbased system with analogue microphones, over a combination of correlator and electroacoustic water leak detection device, up to a professional pccorrelator with digital microphones. Enigma combines noise logging and noise correlation into one operation to. Itron has developed an advanced leak noise correlation method called alfa, or automatic leak frequency analysis. Soundsens correlator pods are completely waterproof.
Digital leak noise correlator key benefits pc functionality in a dedicated unit. Excavation team was dispatched, and the leak was found as pinpointed by the leakfinderst correlator. Touch screen correlator with powerful filtering options. A model of the correlation function of leak noise in buried plastic pipes article in journal of sound and vibration 27712.
Download information such as leak noise captured by sensor. A model of the correlation function of leak noise in. A leak noise correlator is a device that uses 2 or more acoustic leak sensors. Primayer enigma water correlating leak noise loggers. 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. Noise correlation technology delivers major leak reduction. Enigma are stateoftheart digital lift and shift correlating leak noise loggers that are designed to be used as a temporary or semipermanent water network survey tool. Based on the principle of leak detection, a set of leak acoustic signal correlator has been designed and implemented, including key parameters selection, circuit design and software development. Revolutionary leak detection technology delivers huge leak. The leak location pinpointed by the leakfinderst correlator was confirmed with the surface noise, and noise on stoptap 2 meters away from the leak location. Correlator and acoustic water leak detector combined. The aquascan 620l leak noise correlator allows free firmware and software updates for the life of the product. Easyscan water leak noise correlators allinone water.
Here you are getting an overview about the sewerin correlators. The aquascan 610 is the worlds first cordless leak noise correlator and provides highly accurate and errorfree leak pinpointing. Leakage detection based on acoustic leak noise correlation in partic. Leak noise correlators a leak noise correlator can be used to mathematically determine where a leak is located between two leak sensors, and can quickly and precisely pinpoint a leak. The correlator uses sensitive microphones to listen to the noise created by the leak. The allinone smart leak locator that is both leak noise correlator, acoustic ground microphone and electronic listening stick in one single powerful product. A leak in a pipe under pressure creates noise that travels along the pipe.
Leak detection, locating, correlating, and logging what. It represents an advance in leak detection technology through significant improvements in the leak noise processing path. View data on suspect leaks in the field or download the data to pc for further analysis. With just a few finger strokes, you can quickly and easily switch between the various applications. The aquascan 610 is highly accurate and extremely portable. It allows you to i avoid false positives by filtering out nonleak noise sources, and ii. Acoustic correlating logger technology underground surveying. The clever combination of these processes in one system allows you to confidently locate the leak regardless of the ambient conditions. Digital signal processing isolates multiple leak sounds individually at each logger, statistically optimizing their correlation at.
Leak noise correlator is very lightweight and compact, yet it offers full capabilities for programming many different pipe materials and pipe diameters. The aquascan tm2 has been specifically designed for the use on large diameter pipes and for extremely difficult situations. Leakage detection using leak noise correlation techniques. With higher processing speeds of a tablet pc, new signal processing technology and accelerometer sensors with additional sensitivity in the low frequency range this correlator can detect quieter leak noise at low frequency in addition to normal leaks. Eight loggers produce 28 distinct pa for correlation analysis. Tricorr touch pro leak correlator subsurfacesolutions. The software allows for leak locating in the most difficult areas. Water leak monitoring water leak detector australia and. The fuji leak noise level logger fsj1 records noise levels from the fsb8d to judge if the pipe has a leak or not.
This correlation logging system can determine the location of leaks in buried water pipes. Pipe fittings such as meters, valves and hydrants are used as access points. Leak noise identification with added sound file listening and remote correlation modes milford, oh fcs introduces the next generation of its popular permalog leak noise logger. Enigma water correlating leak noise loggers primayer. Soundsens is a unique leak localisation system combining sound logging and correlation into one simple to use, cost effective process. The combination of high performance, elegant design, compact size and advanced features make this the most popular leak noise correlator available. The pipe is too deep and the sound cannot be detected. Typically, microphones or acoustic sound sensors are placed in contact with the pipe, at two or more points, to record the sound emitted by a leak e. Users can pinpoint leaks on large pipes and even plastic. The fsb8d electric listening stick is rod based acoustic listening instrument for listening for water leaks at meters, valves and hydrants.
Leakfinderrt also uses the pcs cpu to perform the correlation operation and. The position of leaks can be pinpointed by picking up leak noise at these two points. Conventional correlators require the leak operative to input a number of data points into the correlation software, including the material, diameter and exact length of each pipe segment between the sensors. Eureka3 provides highperformance leak noise correlator and leak noise logger of multiple pipe material. Correlation files can be saved and exported for safekeeping, subsequent analysis or recorrelation, or for second opinion by an expert. The software offers automatic leak frequency analysis that allows previously. Accurate results provided by patented hardware software based solution.
It is therefore the only radio logger that will allow you to i avoid false positives by filtering out nonleak noise sources, and ii pinpoint the exact location of leaks using correlation and crosscorrelation techniques between loggers. Lift and shift correlating leak noise loggers for the location of leaks in water supply. To use fuji leak noise level logger fsj1, fsb8d leak survey tool is necessary. Itron has developed an advanced leak noise correlation method called alfa. Said to be the first true digital leak noise correlator, the companys version 2. Zonescan 820 correlating radio loggers and zonescan. The water leak correlator uses the pipe size, pipe material and length to determine sound speed in the pipe and calculate the water leak position. You can listen to the leak noise via the headphone socket on both transmitters a and b. Gis representation of points visited, listened and correlated. This operates live in the frequency ranges selecting the optimum correlation. Alfa works by identifying a leak acoustic signature in 2logger recordings. Leak noise correlator water main leak detection nj. Listening to the leak noise displaying the level 1.
This patented system is the first truly pc based system to employ the advanced leak noise correlation technique. This technology enables us to plan the placement of the loggers, listen and record multiple soundings, and analyze the results on a laptop computer, making it possible to find leaks in situations where the acoustic ground. Advanced signal processing and acoustics sensor design find quiet leaks other. After the zone measurements, with prelocation the possible location of the leak is narrowed down. The system comprises highly sensitive, self contained correlation pods, which record large amounts of sample data when deployed in a network. The mobile leak detection is an all in one, innovative mobile leak detection system. Correlator detects noise transmitted in the wall of the pipe and the water. Zcorr digital correlating logger subsurface leak detection.
This new unit design combines the power, graphics and ease of use of a pc based leak noise correlator. Leak noise correlators gutermann leak detection products. Prelocating leaks works on the principle of the louder, the closer and the quieter, the further away. Soundsens is a high performance, multipoint leak noise correlation system which combines ease of use with new standards in leak pinpointing performance. The solution brings the smartphone revolution to leak detection. By comparing the noise transmitted from microphones at different positions on the pipeline, and providing the correct parameters have been set, the correlator software can make a remarkably accurate estimate of the leak location. Leakfinderrt is fully realized in software for pcs running under microsoft windows xp, 2000, nt, or 98.
This autocorrects for velocity variation giving a more accurate leak location result. The quality of the result largely depends on the users ability to bring about a clear correlation peak using manual filter ranges. The water leak noises from each microphone are transmitted to a receiver that compares the difference in time from each leak sound and calculates the distance to the leak from each microphone. The leak index shows very little sound, and the graph shows usage noise meter during the 2. The windows software can do graphic leak correlation situation diagramming printable leak correlation reports can be generated. Easyscan allinone water leak locator and correlator by gutermann ag. There are three standard applications for the zonescan 820. Leak noise correlators are powerful electronic devices to locate leaks on.
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