ADS Environmental Services Enigma-hyQ QR 775017 A2 - Manual (Page 5)

ADS Enigma/Enigma-Compact/Enigma-hyQ User Manual
1
C H A P T E R 1
Introduction
The ADS
®
Enigma
®
is a compact, easy-to-deploy leak detection and location
system designed for use with buried water pipes. Using the latest advances in
digital acoustic technology, it combines noise logging (leak detection) and
leak noise correlation (location) into a single, simple operation.
Actual sound is recorded by a network of Enigma loggers, typically deployed
on valves or hydrants overnight. After the recorded sound files are
downloaded from the loggers, the software subjects the files to a sophisticated
analysis process and displays any noise source locations.
For more information on the leak correlation principle, refer to Chapter 7,
Principles of Leak Noise Correlation on page 81.
The Enigma includes the following system features:
 Multi-point correlation
 Easy-to-read analyses
 Simple deployment
 Multiple leak identification through a single operation
It also provides the following logging features:
 Small size – fits into majority of underground locations
 Long-term power capability (loggers powered for minimum of 5
years)
 Magnetic attachment
 Fully submersible (IP68)
Another version of the Enigma employs a hydrophone. Hydrophones offer
greater sensitivity than standard accelerometers and provide narrow band
filtering. A special hydrophone package, the Enigma-hyQ, also is available
that has been optimized for leak detection in large diameter, non-metallic
pipes and over longer distances. The Enigma-hyQ includes the Enigma-
Compact (which includes 3 loggers) and a set of 3 hydrophones.