7
QUICK-START DEM ONSTRATION
I. Supplies Needed
• a Nail • a Gold Ring (try several different size gold rings) • a Large Silver Coin
II. Position the Detector
a. Place the detector on a table, with the searchcoil hanging over the edge.
Or better, have a friend hold the detector, with the searchcoil off the ground.
b. Keep the searchcoil away from walls, floors and metal objects.
c. Remove watches, rings and jewelry.
d. Turn off lights or appliances, whose electromagnetic
emissions may cause interference.
e. Pivot the searchcoil back.
III. Power Up
Press .
IV. Wave each object over the searchcoil
a. Notice the tones and Target-IDs for each object (assumes default DISC
setting):
OBJECT
TARGET-ID
TONE
Nail
lower (e.g. 10-35)
V.C.O.
Gold Ring
medium (e.g.- Mid 50’s)
V.C.O.
Larger Gold Ring
medium (but higher than ID for smaller gold ring)
V.C.O.
Silver Coin
higher (e.g.- 80-99)
High
b. Motion is required.
• Objects must be in motion over the searchcoil to be detected.
• Sweep objects flat over the searchcoil, parallel to the plane of the searchcoil.
V. Press
twice to activate the DISC selection
a. While sweeping the Nail back-and-forth, press
to
increase the DISC setting.
b. Continue to press
and increase the DISC setting.
• Notice that the Nail is eliminated from detection when the DISC setting is
equal to the target's ID.
Caution: Passing the nail at differing angles will yield different ID numbers.
VI. Repeat Step V while waiving the Gold Ring, and then also
while waiving the Silver Coin
14
IN-THE-FIELD TECHNIQUES
STANCE
Stand with your arm extended in front of your body. Don’t bend or stoop;
stand in a comfortable position. Hold the unit so that the searchcoil is
about 3cm above the ground. Adjust the searchcoil so that it is parallel
to the ground.
SWEEP
Standing in the search position, swing the searchcoil gently from side to
side, slightly overlapping each sweep as you move forward. Keep your
searchcoil approximately 3cm above the ground as you search. Raising it
during the sweep, or at the ends of your sweep, can cause false readings.
Move slowly; hurrying will cause you to miss targets.
Most desirable objects will respond with a repeatable tone. When
discriminating, iron and foil objects are generally eliminated from detection.
False signals can be caused by trashy ground, electrical interference or by
large irregular trash objects. These signals are easily recognized by their
often broken or non-repeatable nature.
1/4 of Stater,
gold, France
2 Franc Morlon,
aluminum
Medieval double
sol
50cent Chambre
du Commerce
Double
Tournois,
copper
Roman
Nummus,
bronze
Celtic Potin,
mixed metal
Merovingian
Triens, gold
