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3 Using the vLoc3-5000
3.2.1 Detecting Power Signals
1. Switch on the vLoc3-5000 receiver and select Power mode using the “f” button. Notice that the antenna mode indicator will
be showing “Peak” or “Omni-peak” as these are the only options in the passive modes.
67.0
Power 50
42dB
1.2m
2. Hold the vLoc3-5000 vertically and away from likely positions of cables or pipes.
3. Adjust the sensitivity using the “+” and “-” buttons so that the bar graph reading is just starting to show some movement.
Note that the compass and line position indicator features are not available for the Power or Radio modes.
NOTE
Note that there will be no sound from the speaker until the meter reading is above approximately 10%
of full scale.
4. Keeping the vLoc3-5000 vertical, walk across the area to be checked keeping the orientation so that the blade is in line with
the direction of walking (see diagram above) If using the Onmi-Peak mode, the orientation of the locator is not important.
5. Continue in a grid across the area.
6. If at any time, the meter reading starts to increase, carefully move the locator side to side to detect the maximum signal.
Use the Peak Level indicator to help confirm the correct position.
67.0
Power 50
42dB
67.0
Power 50
42dB
(a)
(b)
67.0
Power 50
42dB
1.67m
1.67m
1.67m
7. Rotate the vLoc3-5000 on its axis to obtain the maximum signal. The vLoc3-5000 is now directly over the line and with
the blade across the line (if using the Omni-Peak mode there will be no change so switch to Peak mode if the direction is
required).
8. The direction can also be found by rotating until the smallest signal is detected. The blade is then in line with the cable/pipe.
9. Continue to locate the position of the line at regular intervals until its course is known through the target area.
