ADS Environmental Services Eureka Digital QR 775020 A0 - Manual (Page 62)

ADS Eureka Digital System User Manual
58
Velocity
An accurate sound velocity is essential for accurately locating leaks from
the correlation result. Typically, the sound velocity obtained automatically
based on the pipe diameter and material entered by the user is adequate.
However, ADS recommends always measuring the sound velocity in the
pipe to reduce leak positioning errors. This can be done with either 2 or 3
transducers.