Instructions
for use
28
Metal Detector
TRACER M-ray 913
EN
Most valuable objects will respond with
a repeatable tone. If the signal does not
repeat after sweeping the coil directly over
the suspected target a few times, it is more
than likely trash metal.
Crossing the target zone with multiple in
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tersecting sweeps at multiple angles is an
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other way to verify the repeatability of the
signal, and the potential of the buried tar
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get. To use this method, walk around the
target area in a circle, sweeping the coil
across the target repeatedly, every 30 to
40 degrees of the circle, about ten different
angles as you walk completely around the
target. If a high-tone target completely dis
-
appears from detection at a given angle,
chances are that you are detecting oxi
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dized ferrous metals, rather than a silver
or copper object. If the tone changes at dif
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ferent angles, you may have encountered
multiple objects. If you are new to the hob
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by, you may want to dig all targets at first.
With practice in the field, you will learn to
better discern the nature of buried objects
by the nature of the detector’s response.
You may encounter some false signals as
you proceed. False signals occur when the
detector beeps without target being pre
-
sent. False signals can be induced by
electromagnetic interference, oxidation, or
highly mineralized ground soils. If the de
-
tector beeps once, but does not repeat the
signal with several additional sweeps over
the same spot, there is probably no target
present.
When searching very trashing ground, it is
best to scan small areas with slow, short
sweeps. You will be surprised just how
much trash metal and foil you will find in
some areas. The trashiest areas have
been frequented by the most people, and
frequently hold the most promise for find
-
ing the most lost valuables.
GROUND BALANCING
Before using the ALL METAL mode, it is
necessary to „Ground Balance” your de
-
tector, this ground balancing adjustment
offsets the effects of minerals and salts in
the ground.
To GROUND BALANCE your detector:
1. Use the ALL METAL mode to find a
patch of ground which is free of met
-
al objects. You will use this section of
ground to test the detector. The pres
-
ence of any metal objects in this area
will interfere with this procedure.
2. Lift the search coil waist high in the air.
3. Begin with the ground balance (GND
BAL) KNOB in the P position. Rotate
slightly the GND BAL knob from P
counter clockwise.
4. Press GND TRAC.
5. Lower the search coil to the ground,
maintaining it elevated about 1-1.5cm
above the surface (be sure that this
ground does not contain metal).
• If the detector emits sound with the
