GM Electronics Ltd.
7.Indication of the presence of a metal object within the
coil area.
The signal from a metal object, located in the area of the
search coil is indicated by increasing the frequency of the
sound signal (“ticking” sound).
Most weak signals an operator is able to notice are improved
by doubling the preset frequency of the sound which is set with
the
“AUDIO TONE On/Off”
knob before searching starts. This
is perceived accurately by the human ear and therefore it
needs to be set very precisely, so that the sound frequency
without the presence of a signal to be only a few Hz (slow
“ticking” sound).
Each “signal” has “start” and “end”. The
Golden Mask Deep
Hunter Pro3se
has a very well expressed “zone” indication
from deeply buried metal objects with the use of a frame coil.
The length and width of this “zone” is a guide to the depth/size
of the metal objects. When this length is greater than the size
of the search antenna and has an expressed peak in the
middle this certainly indicates a deeply buried metallic object. If
the signal is of a short duration (small area), but is captured
only in the central part of the coil, then you can also expect a
deeply buried metal object. Double audible responses
corresponding to the passage of the front and rear ends of the
“frame” over the metal object are a sure indication of relatively
small metallic object not deeply buried. The use of a round coil
gives a slightly different and shorter signal compared to frame
coils. After reaching a certain signal strength (which will be
indicated on the indicator
“SIGNAL”
), the identification of the
type of metal through the LEDs mounted in the indicating
“SIGNAL”
will start to work. The red color indicates non-
ferrous metals and green indicates ferrous metals (iron). To
present a high probability of proper metal type identification,
when you detect a target, move the coil outside the target area,
press the
“RETUNE”
button and then pass the antenna over
the target from a different direction. Repeat as many times as
you want to identify the type of the metal more securely. With a
little experience, anyone can learn to recognize the nature of
Golden Mask Deep Hunter
pro3se
–
Instruction manual
10
