Depth And Target Display; Coil Drift - Fisher F2 Operating Manual

DEPTH AND TARGET DISPLAY

RE DING THE DISPL Y
The Liquid Crystal Display (LCD) shows the
PROBABLE identification of the targeted
metal, as well as the PROBABLE depth of the
target, in inches.
The target category will illuminate where
an object is best classified, and stay
illuminated until another target is
identified.
The detector will normally register a
repeating, unchanging
identification when a buried target has
been located and identified. If, upon
repeated passes over the same spot,
the target
inconsistently, the target is probably a
trash item, oxidized metal, or too deep
to be classified accurately. With
practice, you will learn to unearth only
the more repeatable signals.
The segment identifications are highly
accurate, when detecting the objects
described on the label. However, if you
register 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 on
the left side of the LCD scale. Gold will
register depending upon its size. The
smaller the gold object, the further to the
left it will register.
Gold flakes will register as Iron
Small gold items will register under Iron
or Foil.
10
target
identification reads
Medium-sized gold items will register
under Nickel or Tab.
Large gold items will register under
Tab or Zinc.
SILVER TARGETS: Silver objects will
normally register to the right of the scale,
under Dime, Qtr, or + , depending on
the size of the object. The larger the
object, the farther to the right it will
register.
IRON: Ferrous objects will register on the
far-left side of the target identification
scale.
Objects in this category could be
worthless scrap, or a more valuable iron
relic.
FOIL: Small pieces of aluminum foil, like
gum wrappers, will register here.
NICKEL: Nickels and most newer pull-
tabs(those that stay attached to the can)
will register here.
TAB: Pull-tabs from older beverage cans
will register here. Few newer pull-tabs will
also register here. Many gold rings will
also register here.
ZINC: Newer pennies (post-1982) will
register here. Many non-U.S. coins of
recent vintage may also register here.