ADS Environmental Services Eureka Digital QR 775020 A0 - Manual (Page 48)

ADS Eureka Digital System User Manual
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Out-of-Bracket means the intentional leak exists at one of the sensor
positions or beyond the length bracketed by the sensors, at either end.
Between Sensors means the leak is reasonably close to the red or blue
sensor, but within the bracketed length. For accuracy, the distance from
the sensor should be less than one third of the total pipe length.
For this technique, enter the pipe material and measured length using the
standard method and pressing Start. Correlation occurs in the typical
manner, using zoom when necessary to locate the exact peak. Please note
that an over-range area extends beyond the ends of the pipe. This allows
valid correlations to occur even when inconsistencies exist between the
pipe information entered and the actual pipe construction and layout that
result in questionable velocity data.
Click on the Calculate button to start the following wizard.
If Between Sensors is selected, enter the distance from the intentional leak
to the left sensor.
Once a velocity value has been calculated, clicking on the Use button
provides the user with the option to apply this value instead of the default.