Minelab X-Terra 505 Manuel d'instructions télécharger pdf (Page 20)

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pinpointing

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3

4

5

AL

During normal detection, the X-Terra operates

with discrimination patterns. When a target

signal is heard, it is an advantage to identify

the target’s exact position. This is determined

by using Pinpoint

.

Enabling pinpoint instructs the X-Terra to

temporarily disengage discrimination and

become a non-motion detector. Targets

normally discriminated against will emit a

signal when beneath the coil.

In pinpoint, the detector gives a continuous

audio response as opposed to a single beep

while detecting. This continuous response

indicates the strength of the target signal

directly below the coil.

The pinpoint audio response is tone and

volume modulated. The dierence in tone and

volume produced will help in locating the

targets position and depth.

Once the approximate target location is

known, move the coil outside of that area

and press Pinpoint

.

Sweep the coil over the target location. The

menu scale segments on the LCD indicate how

close the target is to the centre of the coil.

The detector will only produce a high volume

when the centre-ring of the concentric coil is

directly above the target.

Taking note of the detector’s response, reduce

the span of each successive pass of the coil

until you are condent of the target’s location.

Make a mental note of the position or, if the

ground is sandy, mark a line with your shoe

or a digging tool.

Move to one side so that you can pass the

coil over the target at a right angle to your

initial direction. When the detector sounds you

should know exactly where to dig.

If you have difficulty pinpointing the

target, press Pinpoint/Detect again to

take the detector out of pinpoint and

then return to Step 1.

low high

high low

low

tone

volume

coil

this target will

produce a loud,

high tone sound

this target will

produce a quiet,

low tone sound

The detector may become noisy if left in

pinpoint. If this occurs, return to normal

detection before trying pinpoint again.

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