TERMINOLOGY
The following terms are used throughout the manual, and are standard
terminology among detectorists.
ELIMINATION
Reference to a metal being "eliminated" means that the detector will not
emit a tone, nor light up an indicator, when a specified object passes
through the coil’s detection field.
DISCRIMINATION
When the detector emits different tones for different types of metals, and
when the detector "eliminates" certain metals, we refer to this as the
detector "discriminating" among different types of metals.
Discrimination is an important feature of professional metal detectors.
Discrimination allows the user to ignore trash and otherwise undesirable
objects.
RELIC
A relic is an object of interest by reason of its age or its association with
the past. Many relics are made of iron, but can also be made of bronze
or precious metals.
IRON
Iron is a common, low-grade metal that is an undesirable target in certain
metal detecting applications. Examples of undesirable iron objects are
old cans, pipes, bolts, and nails.
Sometimes, the desired target is made of iron. Property markers, for
instance, contain iron. Valuable relics can also be composed of iron;
cannon balls, old armaments, and parts of old structures and vehicles
can also be composed of iron.
FERROUS
Metals which are made of, or contain, iron.
PINPOINTING
Pinpointing is the process of finding the exact location of a buried object.
Long-buried metals can appear exactly like the surrounding soil, and can
therefore be very hard to isolate from the soil.
PULL-TABS
Discarded pull-tabs from beverage containers are the most
bothersome trash items for treasure hunters. They come in many
different shapes and sizes. Pull-tabs can be eliminated from
detection, but some other valuable objects can have a magnetic
signature similar to pull-tabs, and will also be eliminated when
discriminating out pull-tabs.
GROUND BALANCE
Ground Balancing is the ability of the detector to ignore, or "see through,"
the earth’s naturally occurring minerals, and only sound a tone when a
metal object is detected. This detector incorporates proprietary circuitry
to eliminate false signals from severe ground conditions
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DEPTH AND TARGET DISPL AY
Please refer to the display on your detector
and reference the TARGET-ID categories
below applicable to your model (not all
detectors include all of these categories).
READING THE DISPLAY
The Liquid Crystal Display (LCD) shows the
PROBABLE identification of the targeted metal,
as well as the PROBABLE depth of the target.
The detector will register a consistent Target
Identification, upon each sweep of the coil,
when a buried target has been located and
identified. If, upon repeated passes over the
same spot, the Target Identification reads
inconsistently, the target is probably a trash
item, or oxidized metal. With practice, you will
learn to unearth only the repeatable signals.
The segment identifications are highly
accurate, when detecting the objects
described on the label. However, if an object
registers in a given category for an unknown
buried object, you could be detecting a
metallic object other than the object described
on the label, but with the same metallic
signature. Also, the greater the distance
between the target and the coil, the less
accurate the Target Identification.
GOLD TARGETS
Gold objects will register toward
the middle or left-of-center on the LCD scale.
Gold flakes may register under iron.
Small gold items may register under foil or 5¢.
Large gold items will register toward the
center of the scale.
SILVER TARGETS:
Silver objects will register
to the right of the scale, under dime or higher.
IRON:
All sizes of iron objects will register on
the far-left side of the scale. This could
indicate a worthless item such as a nail, or a
more valuable historic iron relic.
FOIL:
Aluminum foil, such as a gum wrapper,
will register as foil. A small broken piece of pull
tab may also register here.
5¢:
Most newer pull-tabs from beverage cans,
the type intended to stay attached to the can,
will register here. Many gold rings will also
register here.
ALUM:
Older pull tabs, which always detached
completely from the can, register here. Many
medium size gold rings also register here.
PT (pull-tabs):
Pull-tabs from older beverage
cans will register here. Few newer pull-tabs
will also register here. Many gold rings will
also register here.
S-CAP:
Older screw caps from glass bottles
will register here. Large gold rings, like a class
ring, could also register here. Some non-U.S.
coins of recent vintage will also register here.
Zinc:
Medium conductivity objects and many non-
U.S. coins of recent vintage are classified here.
The Target Identification Categories to the
right of the display, such as copper coins, 10¢,
DIME, 25¢, Quarter, 50¢, $1 accurately
identify these U.S. coins. When used in areas
outside the U.S., these categories identify
coins or metal objects of high relative
conductivity (such as silver coins or relics), or
large objects made of any type of metal.
Caution:
The target indications are visual
references. Many other types of metal can fall
under any one of these categories. While the
detector will eliminate or indicate the presence
of most common trash items, it is impossible to
accurately classify ALL buried objects.
5-SEGMENT DEPTH INDICATOR:
The Depth Indicator is accurate for coin-sized
objects. It indicates the depth of the target, in
inches as follows:
Segments Illuminated
Top
Segment
=
0 to 2” deep.
Top 2
Segments
=
2” to 3” deep.
Top 3
Segments
=
4” to 5” deep.
Top 4
Segments
=
6” to 7” deep.
All
Segments
=
8”+ deep.
Large and irregularly-shaped objects will yield
less reliable depth readings
When passing over an object, the indicators
will light up and stay illuminated for three
seconds. If the depth indication varies with
each sweep, try sweeping at different angles;
there may be more than one target present.
With practice, you will learn the difference
between accurate readings, multiple targets,
and highly erratic readings which evidence
trash or irregularly shaped objects.
