Detech EDS REACHER, Инструкция по эксплуатации

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The fully counterclockwise position of the disc . control is marked in red
- nugget. In this position you won’t have any audio discrimination of ferrous
objects, all metal objects in the ground will be indicated with one and the
same audio signal. In heavily mineralized grounds the tiny nuggets could
look like iron to the metal detector, and small iron
pieces could look like gold. With this setting you won’t
miss any metal target in the ground.
The second zone is the AMD (all metal disc) zone.
Here you also won’t have audio discrimination of the
metallic objects. With this lowest degree of the
discrimination the detector is very deep in the ground.
The professional TH-ers use this mode of operation to
study the new sites they are beginning to work on.
The advantage of the
AMD and nugget adjustments
of the disc . control is that you won’t miss any metal
target in the ground. The bad thing is that you’ll have
to loose time digging too many unwanted ferrous targets like pieces of wire,
nails, etc.
The next zone of this control is
relic . As we mentioned е arlier in this position
the detector will eliminate only the tiny pieces of wire. All the bigger sized
targets will be accepted. Most professionals prefer working with this
adjustment of the
disc . control, because the detector is really deep rejecting
the unwanted very small iron pieces and trash.
The next zone of the
disc . control is coins marked in red . Here you’ll have
good rejection of the ferrous targets, and you’ll accept all the non-ferrous
targets. We recommend this position of the
disc. control for searching areas
littered with iron trash. If you have too many pieces of foils rotate the disc .
control after the foil zone. Have in mind that the categorical foil rejection will
bring to the rejection of some thin golden jewelry.
If you decide to use an even higher level of discrimination, you’ll reject the
foil, more of the pull tabs, screw caps, but you’ll loose some coins like the
nickel 5 cents. The detector will keep its good response to more of the coins,
like 1 cent, dime, quarter. Even the lower conductivity ancient coins like the
Greek obols, diobols, the Roman asses, follises, sestertii, the Byzantine
follises will produce nice, smooth response. A big part of the jewelry will be
rejected, as well as the thin small gold coins. We do not recommend such
high levels of discrimination.
Please, have in mind that even if you are with the highest discrimination
level the big oxidized irons will not be discriminated - they produce a strong,
cracked response, the more experienced detectorists manage to discern
them and avoid digging.
DISCRIMINATION CONTROL
4
Figure 4