Enigma®-hyQ is a variant of the standard Enigma multi-point correlation logger that has been further optimized for leak location in large diameter pipes and over longer distances. A high sensitivity hydrophone is used (directly detects the pressure wave in the water) coupled with the application of narrow band filtering.
Enigma-hyQ loggers are deployed during normal working hours at multiple insertion points along a main. Enigma-hyQ gives optimum performance by recording the leak sound at night – when background acoustic noise is lowest and water pressure is usually highest.
Programming and data readback utilises optical and USB communications to ensure rapid operation.