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GoldenMask 4 Manual

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8
Golden Mask 4
7. Audio Discriminators
Metal discrimination is obtained through two
audio discriminators.
1. Operation of the Audio Discriminator.
Set the “DISC” key to position “AUDIO”
and the “DISC LEVEL” potentiometer to
position 2-3. Setting “DISC LEVEL” to a
higher position improves metal
discrimination, but at the expense of the
search depth! If you want to discriminate
most non-ferrous metals on the surface
(modern pollutants), the potentiometer must
be set to a position above 7.
When a non-ferrous metal is detected (gold,
silver, copper, bronze) the sound is deep-
toned. When detecting a ferrous metal
(iron), the sound is crackling and
interrupted.
If the “DISC LEVEL” potentiometer is set
to its maximum left position, the
metaldetector starts working in “ALL
METALL” mode without metal
discrimination!
2. Operation of the Multi-tone Discriminator.
Set the “DISC” key to position “MULTI
TONE” and the “DISC LEVEL”
potentiometer to position 2-3. Setting
“DISC LEVEL” to a higher position
improves metal discrimination, but at the
expense of the search depth! If you want to
discriminate most non-ferrous metals on the
surface (modern pollutants), the
potentiometer must be set to a position
above 7.
When a non-ferrous metal is detected (gold,
silver, copper, bronze) the tone is high.
When detecting a ferrous metal (iron), the
tone is low.
If the “DISC LEVEL” potentiometer is set
to its maximum left position, the
metaldetector starts working in “ALL
METAL” mode without metal discrimination!
Recovery Speed of the Metal detector
Golden Mask 4 incorporates electronics,
specifically designed to provide high
recovery speed to enhance the productivity
of the metal detector on highly iron-
contaminated terrains. To attain maximum
recovery speed of Golden Mask 4, set the
“DISC LEVEL” potentiometer to position 2
and the “DISC” switch to “MULTI TONE”.
Search Depth for Metal Objects
The detection depth for metal objects
depends on the position of the “POWER
LEVEL” potentiometer. For maximum
depth, turn the potentiometer to the right
until you reach the audio threshold.
The detection depth for metal objects
depends on a few factors.
1. Size of the object
The greater the surface area of the object,
the higher the detection depth!
2. Orientation of the object with respect
to the search coil
Horizontally positioned coins (objects) are
more easily detectable at greater depths!
3. Soil type
The detection depth is reduced in
mineralized soils and, respectively, the
depth is increased in homogeneous sandy
soils.
4. Discrimination level
Each metal detector, regardless of its brand
and model, obtains maximum depth in a
non-discrimination mode (“ALL METALL”
mode). The higher is the metal
discrimination; the lower is the detection
depth. On low mineralized soils the level of
discrimination has the smallest impact on
… 8 …


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