Pinpointing - Minelab X-terra 305 Instruction Manual

36

pinpointing

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 difference in tone and
volume produced will help in locating the
targets position and depth.
coil
this target will
produce a loud,
high tone sound
this target will
produce a quiet,
low tone sound
low high low
volume
The detector may become noisy if left in
pinpoint. If this occurs, return to normal
detection before trying pinpoint again.
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 confident 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.
37
1
2
3
4
5
AL
If you have difficulty pinpointing the
target, press Pinpoint/Detect again to
take the detector out of pinpoint and
then return to Step 1.