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25
SERIES
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Locate path of faulted conductor
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Remove power from faulted conductor & disconnect loads and ground from both ends of target
conductor and neighboring conductors
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With transmitter off connect red lead to the faulted conductor and black lead to independent
ground rod placed behind and in line with the conductor path.
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Turn the transmitter on and set to DFF Mode by holding frequency
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Complete transmitter instruction before using GRP
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Place GRP or STAFF in soil with back spike approx. 2 yards (2 meters) from ground rod and front
spike toward suspected fault
99 78 61 54 40 15 ---- --- 15 40 54 61 78 99
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If using the receiver with the GRP, plug in the GRP to the jack in the handle of the receiver. Then
press and hold the mode button for 10 seconds to select the to select DFF mode
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Note numeric reading as reference to signal strength near fault
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LCD will indicate fault direction
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Signal strength will fall as leaving the ground spike until passing the half-way point between
ground spike and fault. Signal will start to rise from half-way point to fault. If the distance is great
the signal strength may fall to non-detectable level and arrows may not stabilize through the center
section.
2 Meter Approx.
Signal Strength Decreases
Signal Strength Increases
•
At the fault the signal strength will be equal to the signal strength at ground rod. The arrows will
distinctly flip forward and backward as the fault is passed.
f
ault
l
oCating
With
the
a-frame
or
staff
