Depth And Target Display - Teknetics Alpha 2000 Owner's Manual

DEPTH AND TARGET DISPLAY

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
on the left side of the LCD scale.
Gold flakes
will register under iron.
Small gold items
or 5¢.
Medium-sized gold items
register between 5¢ and Alum.
Large gold items
Zinc.
SILVER TARGETS:
register to the right of the scale, under Dime,
Qts. or 50¢+.
IRON:
All but the very largest 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.
NICKEL:
Most newer pull-tabs from beverage
cans, the type intended to stay attached to the
14
Gold objects will register
will register under foil
will
will register under
Silver objects will
can, will register here. Many gold rings will also
register here.
PT:
Older pull tabs, which always detached
completely from the can, register here. Many
medium size gold ring also register here.
ZINC:
Newer US pennies (post-1982), and
Canadian $1 and $2 coins register here. Many
non-US coins of recent vintage will also
register here.
DIME:
Dimes and older copper pennies (pre-
1982) register here.
50¢+ Qts:
Quarters register here, Silver
Dollars, Half-Dollars and very large iron
objects, like a sewer lid, will register here.
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.
DEPTH INDICATOR:
accurate for coin-sized objects. It indicates
the depth of the target, in inches.
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.
The Depth Indicator is