Minelab X-Terra 705 Instruction Manual download pdf (Page 12)

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target id

Buried metal objects are referred to as targets.

Target signals contain ferrous and conductivity

information.

As the coil is passed over a target, the detector

digitally processes the target signal and

displays this as a number. Target Identication

(ID) is used to distinguish one type of metal

target from another.

Target ID numbers range from –8 to 48.

Negative numbers represent ferrous targets

and positive numbers represent nonferrous

targets.

The last detected Target ID stays on the display

until another target is detected. If the detector

passes over a target that it rejects, the display

will show two dashes instead of a number.

Target ID Stability

The X-Terra 705 has a ne Discrimination Scale,

but this may result in some instability of the

displayed Target ID in some areas with highly

mineralised soil.

In these cases, the Target ID numbers may

be further stabilised by using the Target ID

Stabiliser. The Target Tone may not always

match the stabilised Target ID.

Activating Target ID Stability

In the detection screen, press and hold

Mode

for three seconds. The icon

will appear, indicating that Target ID Stability

is activated.

To de-activate Target ID Stability, press and

hold Mode

for three seconds. The

icon will disappear, indicating that Target ID

Stability is de-activated.

Rejected segments appear as black, accepted

segments disappear altogether (allowing

signals from metal objects). The combinations

of accepted and rejected segments are called

Discrimination Patterns.

Ferrous targets are those that contain iron (e.g.

nails). They are generally magnetic and are

represented by the left-hand side segments.

Desired and undesired targets may appear

anywhere along the discrimination scale, e.g.

Desired ferrous target - Canadian coin

Undesired ferrous target - iron nail

Desired nonferrous target - gold coin

Undesired nonferrous target - pull-tab

Discrimination segments may be turned on

or o, rejecting or accepting certain targets,

respectively (Editing Discrimination Patterns,

p. 25).

In addition to the Target ID, targets are also

represented as a particular segment on a linear

scale at the bottom of the display.

Each discrimination segment represents

a level of conductivity and ferrous content.

Nonferrous targets are those that have no

iron content, such as gold, silver, copper and

bronze. Nonferrous targets are often higher in

conductivity and are represented by the right-

hand side segments.

24 nonferrous 4 ferrous

The X-Terra 705 has 28 ID segments. The target

IDs range from –8 to 48, increasing in steps of 2.

Discrimination segment

Each segment refers to a certain type of metal signal.

Segments can be turned off (to accept targets) or

turned on (to reject targets), accepting or rejecting

signals from the corresponding metal objects.

Target ID

The numeric identifier of

a particular metal object

underneath the ground.

Many of the screen diagrams in

this manual refer to the X-Terra

705 operating in the default Coin &

Treasure Mode.

A grey icon on the diagrams in this

manual represents a ashing icon on

the detector.

Press and hold

to activate/de-

activate Target

ID Stability.

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pattern discrimination scale

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