9
9
1
1
6
6
DEPTH AND TARGET DISPLAY
C
C
u
u
/
/
1
1
0
0
¢
¢
:
:
Dimes and pre-1982 pennies will
register here. Older, pre-1982, pennies
are composed of copper, which has a
metallic signature similar to a dime. Most
copper coins will register here.
C
C
a
a
u
u
t
t
i
i
o
o
n
n
:
:
The target indications are
visual references. Many other types of
metal can fall under any one of these
categories. While the F4 will eliminate
or indicate the presence of most
common trash items, it is impossible to
accurately classify ALL buried
objects.
DEPTH INDICATOR:
The Depth Indicator is 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
While holding the PinPoint touch pad,
and passing over a metal object
“depth” will appear next to the one-digit
or two-digit number in the middle of the
screen.
TWO DIGIT TARGET INDICATOR
The Two-digit target indicator, in the
middle of the LCD display, provides a
specific target value to help identify
buried targets more accurately. With
practice in the field, you will learn to
associate target values with the
probable identification of buried objects.
The target value can vary each time the
coil passes over the target, depending
upon the angle of the object and the
distance from the coil.
A
A
s
s
a
a
s
s
t
t
a
a
r
r
t
t
i
i
n
n
g
g
p
p
o
o
i
i
n
n
t
t
,
,
r
r
e
e
f
f
e
e
r
r
t
t
o
o
t
t
h
h
e
e
t
t
a
a
b
b
l
l
e
e
b
b
e
e
l
l
o
o
w
w
.
.
T
T
A
A
R
R
G
G
E
E
T
T
R
R
e
e
a
a
d
d
o
o
u
u
t
t
The table below lists some common
approximate target value
equivalents. With experience in the
field, you will recognize many types
of metals by their numeric value.
T
T
Y
Y
P
P
I
I
C
C
A
A
L
L
P
P
O
O
S
S
S
S
I
I
B
B
L
L
E
E
V
V
A
A
L
L
U
U
E
E
O
O
B
B
J
J
E
E
C
C
T
T
S
S
0-15
Iron
25-28
Pull-Tab Tail
(broken off)
28-32
Nickel
36-42
Pull-Tab (old type)
58-62
Zinc, Penny
68-72
Dime & Wheat Cent
78-83
Quarter
86-90
Half Dollar
91-95
Silver Dollar
DISCRIMINATION (THRESHOLD) + AND
–
The f
f
u
u
n
n
c
c
t
t
i
i
o
o
n
n
o
o
f
f
t
t
h
h
i
i
s
s
c
c
o
o
n
n
t
t
r
r
o
o
l
l
d
d
e
e
p
p
e
e
n
n
d
d
s
s
u
u
p
p
o
o
n
n
t
t
h
h
e
e
o
o
p
p
e
e
r
r
a
a
t
t
i
i
n
n
g
g
m
m
o
o
d
d
e
e
you are in before you press
these touch pads.
AUTO TUNE
+
+
a
a
n
n
d
d
–
–
will change the threshold sensitivity
of the detector in this mode. This T
T
h
h
r
r
e
e
s
s
h
h
o
o
l
l
d
d
control operates like a fine adjustment for
setting the sensitivity level and the volume
of the background audible hum. If you
continue to press +, you will cause the
detector to make a sound, or hum, when
no metal is present. Depending upon skill
level and environment, some users prefer to operate in AUTO TUNE
with an audible hum active at all times. At such a high “threshold,”
faint signals from deeply buried or very small objects will be more
apparent to the user.
PINPOINT
Not applicable.
The
+
+
a
a
n
n
d
d
–
–
touch pads have no function in this mode.
DISC
+
+
a
a
n
n
d
d
–
–
will increase or decrease the level of
discrimination. Each press of the pads will
cause an “R” to appear or disappear on the
display. When the “R” appears, the
corresponding target category will be
eliminated from detection. No audible tone
nor target-arrow will appear when the
searchcoil passes by an object in a
category with an “R” illuminated. A
maximum of seven “R”s can be displayed, eliminating objects up to
the Zinc-1¢ category. The four right-most target categories cannot
be eliminated from detection.
NOTCH
When Notching-Out a target, the
+
+
a
a
n
n
d
d
–
–
pads will move a flashing
arrow to the target category selected for
notching. This feature allows you to
discriminate items selectively across the
target spectrum. While the “discrimination”
control eliminates all targets from left to right,
this control allows you to either add back
categories previously eliminated (changing
from “R” to “blank”) or to selectively eliminate
categories (changing from “blank” to “R”).
CONTROL PANEL
(continued)
F4manual-SPREADS(24pg).qx 4/13/11 8:30 AM Page 9
