User's Manual

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6.1.5 Correlations Table
Figure 67: Settings > Correlations
There are two levels of warning thresholds: yellow in the range of
40 - 79%, which indicates a possible, and red in the range of 80 -
100% indicates a probable leak. The green indicator (0 - 39%,
everything is in order) is here not shown. The default values are
40% and 80%
Pipe Length: Enter the distance between two Loggers. Preset:
600m
Note! Incorrect evaluations will result if the entered length is
shorter than the actual pipe length
Note! If not sure, enter a value that exceeds the actual distance
between the Loggers. Example: actual pipe length: 255m, entered
pipe length: 600m
Pipe - Material: Select the pipe material from the drop-down list.
Preset: Ductile Iron
Pipe - Diameter: Select the pipe diameter from the drop-down list.
Preset: 100mm
Sound Velocity: The sound velocity is dependent on the pipe
material and is automatically set by the system upon selection of
the pipe material. Preset: 1334 m/s
Filter on: Select the check box if your pipe is made of soft material
(e.g., PVC, PE)
Filter from: Enter the lower Hz value above which filtering is to be
performed. Preset: 0 Hz
Filter from: Enter the lower Hz value above which filtering is to be
performed. Preset: 512 Hz
Correlation Color
Pipe Presets
Filter Presets
(Soft Material)