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Note the depth of the pipeline. Move approximately this distance to one side. Keep the orientation as above,
walk along the section of pipeline taking readings at regular intervals. A typical result is shown below with the
main defect being the largest reading. Note that the arrow will always point to the pipe, ie will not reverse unless
the signal reduces to a level that cannot be processed correctly.
A-frame Review Screen
When in the graphing screen, pressing and holding the “i” pushbutton enters into the Review Screen. This enables
the user to scroll through the logged points. A blue vertical line identifies the log position. At each position the
A-frame readings are shown at the bottom of the graph. To delete a record press the “i” pushbutton. The unit will
ask the user to confirm by pressing the “+” pushbutton.
To return to the Graph Screen press the “Return” pushbutton.
1 Position Indicator Bar
2 Record number at this point
3 A-frame fault intensity reading at this point
4 A-frame fault direction at this point
6
Using the vLocDM Receiver
Содержание vLocDM
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