Locating Cable or Pipe
Make sure Transmitter is connected and in the ON position. Move approximately 15 feet (4.5 meters) away from
Transmitter along the path. (Move about 25 feet (7.5 meters) for Inductive search mode.)
Hold Receiver so you can see LCD bargraph and controls easily. Make sure Receiver and Transmitter
frequency are set for the same frequency, either 512 Hz (lower), 8 kHz, 33kHz or 82 kHz (higher). Or select the
passive locating mode which does not require the Transmitter.
Selecting the Locating Mode (Peak or Null)
Press Mode button to select desired Peak or Null locating method.
Peak Mode Locating
Keep Receiver in vertical position. Move Receiver left to right across path. When Receiver is directly above
cable or pipe, rotate for maximum signal. As Receiver is moved away from cable path, the meter reading (and
audio frequency response) will drop off.
If Receiver is rotated while over the cable, a sharp
NULL
will identify the cable’s direction. It is aligned with the
flat side of the Receiver.
Trace path by walking away from Transmitter at a moderate pace. Move Receiver to the left and right while
walking, following the Peak indications. As you trace path, the Peak meter reading may slowly fade as you
move away from the Transmitter. Press and release Gain buttons as needed to compensate for changes in level
(higher or lower). One of the following may occur:
a) Junction where the signal divides and goes several directions.
b) Break in the cable or shield.
c) Change in the depth of the cable or pipe.
d) Insulated pipe fitting.
e) Slack loop of cable.
If you can no longer trace the path, even with Gain set to maximum, connect Transmitter to far end of path and
trace back to the point where you lost the signal.
Mark straight sections of the path every few feet. Mark sharp curves, loops and cable bundles every few
inches. Sharp changes in the path cause the Receiver Peak and Null indications to behave differently than
when tracing a straight path. Practice on a path you know has turns and laterals in it to help you recognize
conditions within the field.
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