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INSTRUCTION MANUAL
• The end of a cut or broken wire can be located by following
the path until the null disappears and gives way to a hot spot.
Beyond the hot spot, no null can be detected. Back up until the
null is detected, and this will be the approximate end of the
broken wire. (Refer to Figure 3)
• Larger nicks in the wire can be located in the same way as
locating cut wires. Follow the null and strong signal along the
sides of the wire until the signal becomes very weak along the
sides of the null. This will occur within a relatively short distance.
The transmitted signal bleeds to ground at the nick and then
wants to return to the ground stake along the outside of the wire
itself. The majority of the signals will stop at the nick indicated by
the low receiver reading just beyond the nick. (Refer to Figure 4)
• To more accurately define the location of an open or larger nick
(ground fault), position the receiver tip on the ground near the
point where the last strong signal was detected along the side of
the path. The receiver tip should be pointing at the ground and
be approximately 6 inches to either side from the null. Because
you are so much closer to the path, the sensitivity knob must be
adjusted down until the meter reads just below 10.
While maintaining the 6-inch distance from the null, move the
receiver down the line, paying close attention to the meter reading.
Once you pass the open or nick, the meter will fall off rapidly.
FIGURE 3: Locating End
of Broken Wire
Locating Wire Nick
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FIGURE 4:
Determining Depth of Wire
To determine the depth of the wire, first mark the ground directly
over the path. Turn the receiver sideways to the path, and tip it 45
degrees. Move the receiver away from the path, maintaining the
45 degree tip until a null is detected. Mark this spot. The depth is
the distance between the two marks. (Refer to Figure 5)
FIGURE 5:
Determining Depth
Two-Step Solenoid Valve Locating Process
Solenoid valves can be located provided all the wires leading to
them are intact and the solenoid itself is still good.
Step 1
1. Set-up transmitter as in "Set-up Section". The null will be present
until you pass over a solenoid valve, and then the signal will
become extremely strong. Mark this spot. Check around the
hot spot for a null leaving the area. If the null continues, follow
it and mark any additional hot spots. (Refer to Figure 6) If only
one hot spot or valve is located, it will be the valve in question.
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