Amprobe CT-326-C User Manual - Page 15
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Underground Wires and buried Cables
1. Plug the pigtail connector into the transmitter.
2. Attach one of the pigtail connector's insulated clip leads to a separate ground such as a metal
rod planted in the earth.
3. Attach the other lead to the "hot" conductor of the circuit you wish to trace. The
transmitter's LED will blink to indicate it is operating and that the circuit is complete.
4. Turn the receiver's range switch to "Scan-12."
5. Push the receiver's "ON" button and Walt for it to calibrate.
6. Hold the receiver over the surface and walk in the area where you suspect the conductor is
located (see Fig.8). If this is unknown, walking a large arc in the suspected area while keeping
in mind the orientation of the receiver's tip to the conductor.
7. Once a signal has been detected, follow it until the maximum reading of LEDs is found.
Narrow down the location of the conductor by changing the angle of the receiver and
adjusting the range switch as necessary. Remember that the probe's signal will vary as
the conductor's depth varies. The conductor will be located where you have the strongest
indication.
8. Repeat this procedure from the opposite end of the conductor to insure the correct location.
NoTE: Be sure you are following the cable you wish to trace and not the ground path used to
complete the circuit.
Underground Wire, buried Cables Using an Independent Power Supply
�WARNING! - To use this method the conductor must not be energized.
1. Plug the pigtail connector into the transmitter.
2. Attach one of the pigtail connector's insulated clip leads to a separate ground such as a metal
rod planted in the earth. If the optional wire loop is used, a separate ground is not needed.
3. Attach the other lead to a power source, i.e. a battery pack. Connect the power supply to the
conductor you wish to trace.
4. Turn the receiver's range switch to "Wires-1"
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Fig.8