Operating instructions for Cable Detector, article 37270766
Page
28
of
34
5.3 Method to increase the effective radius when detecting live circuits
When the transmitter is connected directly to the phase and neutral conductors the signals are fed to two
parallel circuit (as shown in Fig. 3-3-1).
Therefore, circuits can sometimes cause signals that counteract each
other, leading to an effective search radius of no more than 0.5 m. In order to eliminate this effect, the
connection must be made as shown in Fig. 3-3-2, where the ring conductor uses a separate cable, in order to
increase the effective radius to over 2.5 m. Ring conductors over longer distances can be made with a wire roll
(see Fig. 3-3-2).
Make sure to follow the safety instructions when connecting live circuits to the transmitter.
Pay attention to the right distance between the transmitter and the circuit under search, so that the circuit
is clearly identifiable via signals.
1.
The stronger the signals shown on the receiver display while searching the circuit, the closer the cable.
2.
Adjust the transmitter power to suit the different search radii.
3.
Set the receiver to manual mode and set the right sensitivity to precisely locate the circuit.