Inductive Connection
This method is convenient to use, and services are not interrupted. No test cords or connections are need-
ed. The cable or pipe must have good insulation or non-conductive coating, or the operating range will be
short.
Place the T
RANSMITTER on the ground, as close as possible to the path of the cable or pipe. Align the
ARROWS on the TRANSMITTER CONTROL PANEL at a moderate angle to the cable or pipe. Set the
FREQUENCY switch to the 82 kHz position. Turn the T
RANSMITTER ON. The LOADING indicator will start to
blink. First, locate the broad T
RANSMITTER Null, then move toward the expected cable path while looking for
the signal carried by the cable.
Start tracing the path with the R
ECEIVER 25 feet (7.5 meters) from the T
RANSMITTER. Search in the 90º zone
as shown above. Locate the cable or pipe, and follow the path. If the signal becomes weak, move the
T
RANSMITTER to a point 25 feet behind the last strong signal, and continue searching.
The Blind Search locating techniques is used if the operator is not aware if a buried utility exists. Two peo-
ple are needed for this technique. The T
RANSMITTER and the RECEIVER are placed 25 feet (7.5 meters) away
from each other. Each operator walks at the same speed keeping a distance of 25 feet (7.5 meters) from
each other. When the receiver gives an audio response, then a buried utility is present between the
R
ECEIVER and the TRANSMITTER.
Blind Search
6
Transmitter
25 Feet (7.5 Meters) Between Transmitter and Receiver
Receiver
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