ADS Environmental Services Eureka2R QR 775019 A1 - Manual (Page 19)

ADS Eureka2R Leak Noise Correlator User Manual
15
Using a Ground Microphone
One of the accelerometer sensors may be used as a simple surface listening
device. It normally is used for verifying the location of a leak by detecting a
peak in noise at ground surface along the pipeline and in the area determined
through the Eureka2R correlation.
To use this feature, first connect the cable to the socket on the right side of the
correlator and turn it on. Then, connect the headphones, and select Listen
Mode.
This procedure is described in Listen on page 29. Processing the signal delays
the display of the noise level; therefore, make sure the noise has settled to a
steady level before recording.