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4 Using the vLoc3-Pro
WARNING
ALWAYS follow the appropriate safety requirements mandated by safety legislation, safety practice or
your company’s safety procedures when applying a clamp (coupler) to a cable.
BEWARE that when placing a clamp around cables carrying high current, the clamp may vibrate, jump
or close violently due to inducted current from the target cable.
In some situations, high voltages can be induced back onto the clamp and be present at clamp’s plug.
Safety practices should be followed all times when clamping around live target lines!
In all situations ensure the clamp is connected to the transmitter before clamping around a line.
4.3.3 Induction (for frequencies above 8kHz)
With no direct connection lead or signal clamp connected, the transmitter will automatically start to radiate a signal around the
transmitter. These signals will penetrate the ground and couple onto buried lines. The signal will then travel along the line which
can be detected with the vLoc3-Pro locator.
Applying an induction signal to a line.
Remove any connections from the output connector. Switch on the transmitter and place it over the suspected position of the
line and position it so that it is in line of the target as above. In the case of the Loc3-10Tx that is with the handle pointing along
the line and in the case of the Loc-5STx arrows printed on the labels should point along the line of the target line.
The induction mode is particularly useful where there is no access to the line, but it should be noted that this is the least ecient
method of applying a signal and it is also prone to signals being applied to adjacent lines.
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