4-30
Step
Action
8
Mark this spot, then move in the opposite direction to the other side of the
line until the symbol appears in the display again.
9
Mark this spot as well, then measure the distance between the two spots.
Result:
Half the distance between the two spots corresponds
approximately to the depth of the line.
Indications and error
messages
During the depth measuring process, the following symbols are used to notify the
user about certain characteristics and errors:
Symbol
Meaning
For of one of the following reasons, the depth could not be
measured:
•
The signal received was too weak or too irregular.
•
The receiver was not held steady enough during the
measuring process.
•
The receiver was not positioned directly above the line at the
beginning of the process.
The depth of the metallic conductor / probe exceeds the
measuring range (5 m / 7 m). Depth measurement cannot be
performed.
The depth of the metallic conductor amounts to less than 30 cm
(1 ft). Such conductors must be specially marked in order to
prevent damage during construction.
The receiver was moved too far to the left or right while making a
rough estimate
. Move in the opposite direction until the
following symbol appears:
Proceed as described in
step 8
on the previous page.
Distance
D
ep
th
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