Minelab GPX-4000 User Manual

72 73Recovering the Target
It is essential to carry at least one of the following
digging tools with you when searching:
- a small, strong digging spade or shovel
- a pick with broad scraping blade
- a crowbar (for very deep objects in hard ground).
Backfill Every Hole You Dig
Always refill any holes and scatter leaves, before
leaving the area. Help restore the area to its
original condition. Any rubbish you recover
should be taken away with you and disposed of
properly.
Refilling holes and removing rubbish will help
detector users maintain a good reputation. This
should lead to more areas being readily accessible
for prospecting.
1 Clear the area of loose surface material and check
that the target signal is still there. If it is not, the
target should be amongst the moved surface
material.
2 Remember if there are other signals close to your
target. This is important so that when you come to
dig your hole, you do not heap the loose dirt on top
of another target already in the ground.
3 If the target signal is still present, use your pick to dig
to a depth of approx. 50mm (2").
4 Sweep the coil over the hole to determine if it has
been dug. If the target signal is not heard, then the
target should be in the pile just dug. Otherwise dig a
little deeper and check again.
5 Start digging approx. 100mm (4") in front of
the target to reduce the chance of damaging it.
Damaging a nugget may reduce its value.
6 If the target signal disappears from the hole, sweep
the coil over the loose dirt and pinpoint its exact
position.
7 Take a handful of the dirt and pass it over the coil.
8 If there is no signal, place the handful carefully in a
new pile, pinpoint the position of the target again,
and repeat with another handful of soil.
9 Once the target is in your hand, transfer half of the
dirt to the other hand. Test each handful of dirt
across the coil.
10 If the target is too small to see, drop the dirt onto
the top of the coil and with your finger move any
suspect objects. A target signal will only be given
when the target is moved.
Your hands and wrists
must be free of any
metallic jewellery and
watches when passing
dirt over the coil.
When digging, avoid
sharp edges to the
hole as they can
produce false signals,
potentially masking the
target. Slope the edges
of the hole to avoid any
problems.

Minelab GPX-4000 Specifications

General

Brand	Minelab
Model	GPX-4000
Category	Metal Detector
Language	English