so that the highest peak-response moves the meter-
needle to “100” (this will occur in the general area
directly above the cable). The operator then moves the
instrument laterally to one side of the cable until the
response falls to “75”; he marks the ground at that
point. He then moves the instrument laterally to the
other side of the cable until the response again falls to
“75”; he marks the ground at that print also. The cable
will be located midway between these two marks.
8) When several sources of electromagnetic radiation are
present in the same vicinity, the maximizing technique
is generally more reliable than the minimizing.
9) Whenever possible, current should be raised to a high
level in the line which one seeks to locate or trace (for
example, by increasing the load on the line). This will
strengthen the electromagnetic radiation from the line
and will make it easier to locate and trace the line.
10) Whenever possible, current should be cut off or
reduced in nearby lines which are not to be located or
traced. This will eliminate or lessen the possibility of
interfering patterns of electromagnetic radiation
emanating from them.
Model 600 Power Cable Locator
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