Pinpointing
106
Up to 10 measurement results can be displayed side by side. If more than 10
measurements are performed, always the oldest result (displayed on the very left) is
dropped out of the row in favor of the new result.
Ideally, the minimum value increases with every measurement as long as you move
toward the leak. The minimum value decreases again after you have passed the leak
position.
The drop symbol identifies the measurement with the highest minimum value.
This means that the leak noise at this measuring point is the loudest.
Example:
After the first pinpointing run is performed, you know the approximate location of the
leak. Furthermore you have an idea of the frequency spectrum and you are able to
assess whether the microphone gain needs to be changed or not.
Adjust the microphone gain
If the height of the level bars on the screen does only change very little from
measurement to measurement, you should increase the microphone gain (moving slide
control in the top left of the screen to the right).
If the height of the level bars does change much too much, you should reduce the
microphone gain (moving slide control in the top left of the screen to the left).
Adjust the Frequency filter
If the frequency values of the individual measurements share a common range, you can
change the frequency filter from the Broad band setting to this frequency range (see
step 6).
Perform further pinpointing runs
After the filter settings and microphone gain have been adjusted where necessary,
perform one more pinpointing run along the pipe in the area of the pre-located leak. This
time, choose a shorter distance between the measuring points.
Perform more pinpointing runs with increasingly smaller distances between the
measuring points.
The leak is considered reliably localized if multiple pinpointing runs show the leak at the
same position.
View
After the first
pinpointing run
Summary of Contents for Correlux C-3
Page 2: ...Consultation with SebaKMT 2 ...
Page 8: ...Terms of Warranty 8 ...
Page 14: ...Frequently used menus 14 ...
Page 18: ...Frequently used menus 18 ...
Page 20: ...Frequently used menus 20 ...
Page 22: ...Frequently used menus 22 ...
Page 24: ...Frequently used menus 24 ...
Page 26: ...Frequently used menus 26 ...
Page 40: ...The Multi sensors 40 ...
Page 60: ...Sensor management 60 ...
Page 68: ...Online correlation 68 ...
Page 76: ...Offline correlation Multipoint measurement 76 ...
Page 84: ...Real time measurement 84 ...
Page 92: ...Sound velocity measurement 92 ...
Page 100: ...Storage Management of correlations History 100 ...
Page 102: ...Reset of correlation settings and data 102 ...
Page 110: ...Pinpointing 110 ...
Page 120: ...Firmware update 120 ...