User's Manual

Frequently used menus
13
2.3 Correlation menu
After starting a correlation the result is displayed in the following view:
Element Description
Correlation curve
Result from comparing the recordings of the two sensors with regard to the
delay time of the signals.
Tap the diagram area to open the Correlation analysis menu which provides a
number of analysis tools.
Coherence curve
Result from comparing the recordings of the two sensors with regard to the
frequency range of the recordings.
Tap the diagram area to open the frequency filter settings.
Pipeline between A and B
The grafic illustrates the pipeline between the measuring points A and B with
all its sections.
Tap the grafic to open the Pipe data menu.
Distance from the measuring point to the leak
Measuring point A / B
Indicates whether the Power transmitter A or B is installed at this measuring
point. Tap the button to open the Audio menu which can be used to listen to
the leak noise.
Noise level at the measuring point
The height of the bar reflects the noise level at the measuring point.
Quality of the radio link between transmitter and Correlator
Lag value
Indicates the delay of the leak noise between the two sensors.
The colour of the numbers shows how reliable the result of this correlation is:
green
… "good" correlation, reliable result
yellow
… correlation is not optimal
red
… "bad" correlation; unreliable result
Correlation curve
Coherence curve