DeepTech DISCRIMINATOR, Manual

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INTRODUCTION
Congratulations on your choice of the DISCRIMINATOR. This
Automatic Full Discriminator is a new generation of pulse
induction metal detecting instruments.
It is used for locating larger and smaller (3” to 4” [10cm x 12cm])
sized targets at greater depths compared to any other conventional
metal detector. The pulse induction system is developed to
automatically retune, so that changes in the ground mineralization
and unwanted ferrous metal targets are eliminated. The SDP series
Discriminator is a unique combination of technologies that takes
advantage from other pulse induction detector technologies to
create an easy to use balanced system.
The DISCRIMINATOR works at great depths and ranges by
smooth and stable operation from the control unit in automatic
motion mode. Target identification and discrimination is possible
with the 1m x 1m square PVC coil. Pinpointing is achieved with
the smaller 11” round shaft-mounted coil.
How does the SDP Automatic Discriminator work ?
The search coil sends out short magnetic pulses and produces a
strong magnetic field above the ground. The magnetic field
induces eddy currents in the metal objects to be detected. These
currents generate a secondary electromagnetic field, which flows
outward from the target. A portion of this secondary field passes
through the antenna winding. This signal is processed by the
electronics and displayed by a ticking rate, meter response and
light indication. The timely decoupling between the transmitting
and receiving phases allows the SDP series to work with an
increased transmitting and receiving power.
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