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In the „auto discr“ / „reject“ mode the device memorizes only the purity coefficient ID1
of a metal, and in the “AUTO DISCR“ / „REJECT“ mode it memorizes both coefficients
– for purity ID1, and for magnetism ID2. The display shows an indication, for example:
„R: -9, -28“ (corresponding to „ID1 = -9“, and „ID2 = -28“). In this case the device will
eliminate signals from a located metal, only if both memorized coefficients coincide. I. e.,
ti will operate more precisely, but beside „rng1“, the value of „rng2“ will also be the one
that will matter, as ID2 is also taken into consideration. The setting of „rng2“ refers to the
indication of ID2 and is analogue to „rng1“, but „rng2“ can change within the limits (1 –
10).
For example: if a metal with coefficients „R: -9, -28“ has been memorized and for
„rng1“ a value of „1“ has been chosen, and „3“ for „rng2“, the device will react only to
metals with signals from „R: -8, -25― to „R: -10, -31“, or the ranges of location will be for
ID1 with 1 unit under and 1 unit above the memorized value „-9“, and for ID2 they will be
3 units under and 3 units above the memorized value of „-28“.
In the sub – modes „reject / REJECT“ one can also additionally select „auto discr“
and “AUTO DISCR“ to operate with extended range. This is indicated on the display with
a „+“ at the end of the inscription - „auto discr +“ and “AUTO DISCR +“.
In the modes with „+“ at the end, „auto discr +“ and “AUTO DISCR +“ the
common signal is analyzed and at a change, one calculates what part of it is due to the
background of the soil, and what part is provoked by another object. That is the way of
calculation what is the signal only from the object, it is close to that one, if soil doesn't
have its own background or the object is situated in the air. These modes are most suitable
for searching of ferrous objects among iron waste or in highly mineralized and ore soils, as
well as under active stones, ceramics or slag.
The difference between both modes: “AUTO DISCR“ and “AUTO DISCR +“ is
that, that in the “AUTO DISCR“ mode the device memorizes both coefficients for purity
of metal ID1 and for magnetism ID2, while in the “AUTO DISCR +“ mode it memorizes
only ID2 and eliminates undesired objects only by the magnetic properties. This is the
mode in which one can successfully register non – magnetic metal objects between iron
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