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4 Using the vLoc3-Pro
88.1
32dB
32.8kHz
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9. Keeping the null indicator on the vertical line, walk toward the arrow.
10. A Sonde icon will soon appear. Keeping the locator vertical, carry on walking toward the Sonde until it is positioned on the
cross hairs. The locator is now directly over the Sonde. The arrow will ip forward and back as the position is crossed.
82.9
22dB
32.8kHz
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11. Note that when directly over the Sonde, it may be necessary to conrm the position of the Sonde, left to right. To do this
move the locator left to right to identify the position of the strongest signal as indicated on the bar graph. At this time the
depth to the Sonde will be displayed at the top of the display.
12. Having pinpointed the position of the Sonde, it can now be pushed in to a new location and the process repeated. It is
advisable to keep the survey intervals to short distances such as six feet (two meters) as this makes the process of locating
easier.
13. Pressing the Information key allows access measurement data and to data logging capabilities.
4.11 Signal Direction Precision Identication
(Available for vLoc3-Pro with SD and vLoc3-ML models only)
Some models in the vLoc series of locators contain a feature called “SIGNAL DIRECTION”. This feature is used to verify if the
line being located is the target to which the transmitter has been connected.
When a transmitter is connected to a target line, the signal travels along it and nds the easiest way to travel back, usually via
the ground and ground stake. However, very often the signal will travel back along adjacent cables or pipes as these can oer
an easier route.
As a result, there can be multiple signals radiating from cables and pipes in the area making it dicult to identify the target
line. These return signals are typically traveling in the opposite direction than the applied signal. The Signal Direction feature
identies which direction the signal is owing and hence the target line.
To use the signal direction system:
● Connect the transmitter to the target line using a direct connection only.
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