6 Using the vLoc-5000
Page 49 of 57
Image for reference only and may differ from actual image
Remove the plastic spike covers from the A-frame. Walk along the route of the line placing the spikes of the
A-frame in the ground (with the green leg pointing away from the transmitter connection point) every two or
three paces. If starting near the transmitter, the Arrow on the display will point away from the ground point. As
the distance from the transmitter increases, the dBuV reading will reduce and eventually the arrow will
fluctuate or disappear all together. This is because the fault location is further along the line. If the left/right
arrows are activated, use them to ensure the A-frame is positioned over the line and continue placing the A-
frame in the ground every two or three paces. If the left/right arrows are not activated use the “M” pushbutton
to enter the locate screen allowing the user to confirm the position of the target line. Press the “M” pushbutton
again to re enter the A-frame mode.
Eventually the A-frame will detect the fault signal and the “Fault Find” arrow will point forwards. Continue
moving forwards, it may be worth reducing the distance between measurements points as the fault is neared.
The dBuV reading will increase as the fault is neared. Maximum reading will be just before and just after the
fault. When over the fault, the dBuV reading will drop and the arrow will flip backwards indicating that the
position of the fault has been passed. Carefully place the A-frame before and after the fault to pinpoint the
position. Repeating this across the line direction will pinpoint the fault laterally. The fault will be at the point
where the lateral fault is identified.
WARNING
Always disconnect or isolate cables before making connections to conductors.
Never attach the transmitter to live cables unless authorised. Use the
appropriate accessories.
TIP
If it is suspected that there is just one fault. Insert the A-frame approximately one
meter from the earth stake. Note the dBuV, this is approximately the maximum
dBuV reading that will be measured over the fault.
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