8
17
0 10 20 30 40 50 60 70 80 90
99
EXAMPLES:
DISC
= 0
HIGH
TONE
HIGH
TONE
DISC setting
DISC = 30
DISC = 55
DISC = 74
HIGH
TONE
30
69
99
DISC setting
V.C.O.
V.C.O.
0
69
99
HIGH
TONE
DISC eliminates targets
69
79
99
V.C.O.
DISC setting
DISC changes tone
from High to V.C.O.
DISC setting
V.C.O.
V.C.O.
V.
C
.O.
55
69
99
40
50
69
74
99
DISC = 79
DISC setting
40
50
69
79
99
T A R G E T I . D .
LOW
TONE
LOW
TONE
LOW
TONE
NO
TONE
NO
TONE
HIGH
TONE
HIGH
TONE
NO
TONE
NO
TONE
Below is an illustration of how the DISC control and Variable Tone Breakpoint
operate:
DISCRIMINATION SYSTEM
THE BASICS OF METAL DETECTING
This metal detector is intended for locating buried metal objects. When
searching for metals, underground or on the surface, you have the following
challenges and objectives:
1. Ignoring signals caused by ground minerals.
2. Ignoring signals caused by metal objects that you do not want to find, like
nails.
3. Identifying a buried metal object before you dig it up.
4. Estimating the size and depth of objects, to facilitate digging them up.
5. Eliminating the effects of electromagnetic interference from other
electronic devices.
Your metal detector is designed with these things in mind.
1. Ground Minerals
All soils contain minerals. Signals from ground minerals can interfere with
the signals from metal objects you want to find. All soils differ, and can differ
greatly, in the type and amount of ground minerals present. The Eurotek Pro
has a preset ground elimination setting. No user adjustments are required.
2. Trash
If searching for coins, you want to ignore items like aluminum foil and nails.
You can see the Target-ID value of the buried objects, listen to the sounds,
and then decide what you want to dig up. Or you can eliminate unwanted
metals from detection by using the DISCRIMINATION feature.
3. Identifying Buried Objects
Metal objects are identified by a 2-digit number on the display screen. This scale
has 99 points of resolution, and is an indicator of the relative electrical
conductivity of different objects. Higher numbers indicate more conductive
targets. Iron objects, which are usually of lesser value, display lower numbers.
Silver coins, for instance, usually display the highest numbers.
4. Size and Depth of Buried Objects
The 5-digit bar graph indicates the relative depth of a buried metal object.
This bar graph can indicate the relative size of different objects or their
distance from the searchcoil. For a given object, the more distance between
it and the searchcoil, the more bars illuminated. A more accurate, and higher
resolution, depth reading is available when using the Pinpoint Mode. The
Pinpoint Mode does not require the searchcoil to be in motion to detect
metals. The ability to hold the searchcoil motionless over the target also aids
in tracing an outline of the buried object, or in pinpointing the exact location
of the object using techniques described in the pinpointing section of this
manual.
