Minelab X-Terra 505 Instrukcja Obsługi Pobierz pdf (Strona 28)

Discrimination Patterns

The term notch segment relates to where the target is placed, in

regard to how ferrous or non-ferrous (conductive) it is. Each notch

segment on the X-TERRA is preprogrammed to accept targets within

a specic range of ferrous and/or conductive properties. Those

notches below zero represent ferrous targets. Those notch segments

above zero represent non-ferrous (conductive) properties. For

example, a U.S. nickel typically provides a Target ID (TID) of 12 on all

X-TERRA models.

The TID is the same on all models of X-TERRA because all three

detectors have the number 12 represented on their scales (12 is

divisible by 2, 3 and 4, representing the number of notch segments

on each model). For a U.S. silver three-cent piece, all three detectors

will likely register a TID of 24 (again, 24 is divisible by 2, 3 and 4). And

silver dimes can register a 36 on each of the models (same thing in

that 36 is divisible by 2, 3 and 4).

The thing to remember is that all three models have a maximum

and minimum range of conductivity. Again ferrous targets are

categorized in the negative notch segments. And conductive targets

will be found in the positive notch segments. The dierence between

the X-TERRA models is the number of notch segments assigned to

each model (see page 26).

As I mentioned, the 30 and 305 have 12 of those segments, meaning

all targets will be identied as having one of twelve possible TID

values. Each of those notch segments represents a four digit range

of numbers (counting by 4’s) -4, +4, +8, +12, +16, +20, +24, +28, +32,

+36, +40, +44.

The 505 has 19 segments, meaning all targets will have one of

nineteen possible TID values. Each of the 505 segments represents

a three digit range of numbers (counting by 3’s) -9, -6, -3, +3, +6, +9,

+12, +15, +18, +21, +24, +27, +30, +33, +36, +39, +42, +45, +48 (the

X-TERRA 50 is similar, with the exception of not having the +48 notch

segment).

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Ferrous:

Ferrous objects/targets contain

iron and therefore are attracted

to a magnet.

Conductivity:

Conductivity refers to how well

a target allows electrical current

to ow through it. In other words

a highly conductive target has

low electrical resistance and

therefore allows current to ow

more easily. Conversely, a target

with low conductivity has high

electrical resistance and does not

allow current to ow easily.

Understanding your X-TERRA - Discrimination

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shhshh 23 Jan 2024 | 16:17:44

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Minelab X-Terra 505 Instrukcja Obsługi Strona 28

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