Description
ENIGMA® SMART, POWERFUL, AND BUILT TO LISTEN WHERE & when IT MATTERS MOST.
Enigma 8 Standard Data Logger is a 8-logger correlation system used to locate leaks in underground water pipes. Sensors on the loggers detect vibrations caused by leaks, converting them into sound. By using multiple sensors and comparing the times and distances of these sounds, the system can accurately pinpoint the leak’s location. Enigma 3 can provide up to 28 correlations with a single deployment.
MULTI-POINT NETWORK CORRELATION
After retrieval, the recorded leak sound data is transferred to the host software for correlation analysis. The software processes the acoustic data from each logger pair to calculate and display leak locations between all deployed loggers. Pipe sections, logger positions, and calculated leak locations are displayed graphically to provide a visual representation of the survey area and correlation results.
SEPARATING GENUINE WATER USAGE
Each logger records during three sample periods, typically spaced one hour apart. A characteristic of leak noise is that it is always constant and so if the correlation peak is not present during all three samples then it is due to water use and not leakage.
OPTIMUM LEAK SENSING
Overnight use provides ideal conditions for leak detection. This is because background acoustic noise from traffic, water usage, and other sources is lowest, and, at the same time, water system pressure can be higher, which greatly aids leak sound propagation.
