Heath Consultants Sure-Lock All Pro - Manual (Page 28)

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allow the signal to propagate.
In such situations, this conductor loop must be closed. The coupler clamp comes
equipped with a bridging cable which can be used for this purpose. This cable is
used to “bridge” the break in continuity. The cable can be attached to bridge an
-
tected gas line with the insulator at the meter set (Figure 2-7). Caution must be
taken when using the bridging cable in such situations and it may be used only
after obtaining permission. It MUST be removed after the locate is completed.
In the event that the point of attachment is at the termination or dead end of a
conductor, the termination point must be grounded away from the directional run
of the conductor. Once this is accomplished, the signal is allowed to travel and
the coupler clamp will now function (Figure 2-8). Both ends of the conductor
may need to be connected to earth ground.
The coupler clamp is an ideal device for tracing cables as a direct connect hook-
without making a metal-to-metal contact. The jaws on the coupler clamp must
be closed and completely encircle the conductor in order to function properly
(Figure 2-9).
(Correct - Bridging cable attached around the insulator bridges the break in the conductor loop)
Figure 2-7