GOLDEN MASK Deep Hunter Pro 3SE Manuel utilisateur

GM Electronics Ltd.

INSTRUCTION MANUAL

Golden mask Deep Hunter pro3se is a professional pulse

metal detector designed specifically to detect deep buried

larger metal objects (such as those larger than 8 cm). It has the

ability to indicate the type of metal and a system to significantly

reduce the interference caused by the power lines.

Golden mask Deep Hunter pro3se is a sophisticated ersion

of the well-known Golden Mask Deep Hunter pro3 with

the added possibility of precise manual tuning of the soil-

elimination system and significantly impro ed features

based on brand new electronics.

Golden mask Deep Hunter pro3se has remarkable stability,

sensiti ity and accuracy that are achie ed with ery simple

and intuiti e settings. The apparatus pro ides the ability to

adjust the frequency of the sound indication and the

sensiti ity; automatically eliminating the influence of the

earth; "Silent" mode of operation with two-tone indication of

the type of metals; possibility of using additional

amplification of the recei ed signal, which increases the

detection depth of metal objects by up to 20% and

selecti e rejection of unwanted small metal objects.

Golden Mask Deep Hunter pro3se – Instruction manual

GM Electronics Ltd.

.Detector set

. .Electronic unit with built-in 12.0V/2600(3700) mAh NiMH

battery, pro iding about 8 (12) hours of continuous operation

with one charge. The electronic block is placed in a specially

leather case with a comfortable strap for carrying during

operation.

.2. Search coils. The detector comes with a set of different

coils selected by the customer at the order or additionally

purchased by an authorized dealer.

It is not recommended to use self-made coils or other models

of coils similar to the original ones! There is a real risk of

damage that will be not co ered by the general conditions of

the warranty pro ided!

Golden mask Deep Hunter pro3se can achie e its full

potential only with the antennas that the manufacturer has

included as well as the all kind of antennas produced for each

one metal detector of the Golden Mask Deep Hunter series.

The main search antenna for the Deep Hunter pro3se Golden

Mask is a square detachable frame that comes in two sizes -

125x125cm and 180x180cm.

For indi idual handling of the appliance, round or o al (hand-

held) antennas are used, which are attached to a wearing stick.

These antennas are suitable for areas where frame mo ement

is impossible, as well as for residential buildings (walls, floors,

ceilings), the ertical slopes of the terrain and other specific

search areas for buried metal objects.

.3. Smart charger for the bilt-in NiMH battery.

.4. This Instruction manual

2.Operating Principle - high-frequency pulse induction

(ad anced ersion) with full range flash automatic ground

Golden Mask Deep Hunter pro3se – Instruction manual

GM Electronics Ltd.

balance and multi-channel signal processing to identify

between ferrous and non-ferrous metals.

3.Settings

Golden Mask Deep Hunter Pro3 has extremely simple and

intuiti e settings, that include 4 knobs (of these: 2 with

switching function - one for switching-on/off the unit and 1 for

the special “Silent” mode), 2 buttons, 2 switches and 1 special

indicator.

“VOLUME ON/Off” - knob to switch “ON/Off” the detector and

adjusting the le el of sound.

“SENSITIVITY” - knob to adjust the sensiti ity of the detector;

“AUDIO TONE On/Off”- knob for adjusting the “ticking”

frequency in absence of metal within the area of the search

antenna; In position “On” the detector is in its core search

mode. This is strictly indi idual adjustment and relates

exclusi ely to the indi idual auditory characteristics of the

operator. It is best to set a low “ticking” rate in the absence of

metals near the coil. It does not affect the performance of the

detector and is designed solely to pro ide a better detection of

weak signals.

When “AUDIO TONE On/Off” is in position “Off” the detector

is switched to “Silent” mode, with this mode the detector does

not emit a “ticking” sound during searches. The presence of a

metal object in the area of the coil is indicated by a low pitch

tone (for ferrous metals) or high pitch tone (non-ferrous

Golden Mask Deep Hunter pro3se – Instruction manual

GM Electronics Ltd.

metals). In this mode, the detector's sensiti ity is lower, but it is

suitable for work in conditions of heterogeneous and/or highly

mineralized soil, including the presence of ceramic residues

and/or small metal objects that are not desired for detection.

"AGEB/MAN.GB" - mode switch:

- "AEGB" - mode of automatic soil elimination;

- "MAN.GB" - manual setting of the soil impact elimination

system (in this mode, the detector has about 15% higher

sensiti ity).

"TRASH/GB" - "10-turn" potentiometer for precise adjustment

of the rejection of undesirable small metal objects in “AGEB”

mode; the tune ground-balanced non-automatic system in

“MAN.GB” mode and the eliminating the impact of extremely

hea y soils in “AGEB” mode.

“RETUNE” - button for fast readjustment and stabilization of

the detector by remo ing interferences encountered during the

search process.

“BOOST” is switch for additional amplification of the recei ed

signal: in position “ON” it gi es about 20% extra depth of

detection without use of additional battery power.

After turning the switch “BOOST” to “ON” position,

"RETUNE" must be pressed.

"SIGNAL" is a precision high quality analog meter indicating

the strength of the recei ed signal and the le el of charge of

the built-in battery; there are 3 embedded LEDs for indicating

the type of the metal and the condition of the battery: "Fe", "n-

Fe" - LED indication of the type of metal - green for ferrous

metals and red for non-ferrous metals;

"Battery!" is a LED for indicating less than 10% residual

charge of the built-in battery, indicating a necessary recharge.

Golden Mask Deep Hunter pro3se – Instruction manual

GM Electronics Ltd.

"Battery Check" - button to check the le el of battery charge.

This button can be used at any time when the detector is

switched “ON”. When the arrow is in the red sector, the battery

should be recharged!

4. Elimination of soil impact (ground balance).

As with all other detectors, demand for metal objects in the soil

is accompanied by some difficulties. O ercoming these

difficulties is achie ed by using different systems and de ices

integrated into the electronics of the detector.

In order to achie e a more precise reject of soil impact on any

terrain, the Golden Mask Deep Hunter PRO3se uses specially

de eloped systems that, depending on the chosen mode of

operation, pro ide three different ways to search for metallic

objects by eliminating the influence of the soil.

These methods are:

4. Auto Ground Balance

The well known unique Deep Hunter Golden Mask Pro3

"flash auto ground balance system" is used. It is selected with

the mode switch and continuously rejects the signals caused

by the soil without the need for additional adjustments.

To use this method:

1. Place the antenna on the ground surface.

2. Switch the mode to "AGEB"

3. Select sensiti ity of the detector with "SENSITIVITY" and /

or additional gain of the recei ed signal ("BOOST" switch).

4. Switch “On” the detector.

5. Raise the antenna from the ground at the working height

(not less than 10 cm) and press the "RETUNE".

6. The de ice is ready for use.

4.2 Manual Ground Balance

The application of this method allows the use of the detector's

extreme sensiti ity, but requires some skills that can be

achie ed in practice.

To use this method:

1. Place the antenna on the ground surface.

Golden Mask Deep Hunter pro3se – Instruction manual

GM Electronics Ltd.

2. Switch the mode to "MAN.GB"

3. Select sensiti ity of the detector with "SENSITIVITY" and/or

additional gain of the recei ed signal ("BOOST" switch).

4. Switch “On” the detector.

5. With the "TRASH/GB" potentiometer rotated clockwise or

counterclockwise, the detector will be adjusted to a sound

threshold, pro iding a quiet with a few hertz frequencies.

6. Raise the antenna from the ground at the working height

(not less than 10 cm) and rotate "TRASH/GB" potentiometer

counterclockwise ery carefully to find the best working sound

of the detector. It will be needed only a few position on the

scale.

7. The de ice is ready for use.

4.3 Manual tune in “AGEB” mode (max depth)

This mode is unique to the Golden Mask Deep Hunter

PRO3se. Unlike the Golden Mask Deep Hunter PRO2, where

manual and automatic soil elimination options were also

pro ided, the Deep Hunter PRO3se now is capable of

manually tuning ground balance in automatic ground balance

mode. This method allows simultaneous use of the ad antages

of automatic "tracking" of the terrain from the AGEB system

and precise manually at the le el of elimination of the influence

of the ground in a ery bad soil conditions. It will gi e you the

max depth of the searching

To use this method:

. Place the antenna on the ground surface.

2. Switch the mode to "AGEB"

3. Turn the "TRASH/GB" full left (many turns may needed) and

then set it to “6” position.

4. Select sensiti ity of the detector with "SENSITIVITY" and/or

additional gain of the recei ed signal ("BOOST" switch).

5. Turn “On” the detector.

6. Press “RETUNE” and turn the "SENSITIVITY" knob to

find the max alue, which can be used.

7. Raise the antenna from the ground at the working height

(not less than 10 cm) and rotate "TRASH/GB" potentiometer

counterclockwise ery carefully to find the best working sound

Golden Mask Deep Hunter pro3se – Instruction manual

GM Electronics Ltd.

of the detector. It will be needed only a few position on the

scale.

8. Do not press more “RETUNE” button!

9. The de ice is ready for use.

5.Search for metal objects with frame search coil .

The Golden Mask Deep Hunter Pro3se is designed to be

used with large “frame” type search coils. This is the most

effecti e way to search for deeply buried metal objects.

The search coil must be mo ed slowly at a constant height

( 5 cm or more) abo e the ground. Coils of type “frame” are

deli ered in the form of “coil-cable loop” in length

corresponding to the respecti e size of the supporting frame

and a set of PVC pipes and fittings for assembling the

supporting structure of the frame. The “coil-cable loop” is

composed of series-connected conductors in a multi-conductor

special cable which form a send-recei e coil. The “coil-cable

loop” is mounted onto a frame of PVC pipes, unions and

elbows attached to the PVC frame using the included “Velcro”

cable straps. The connecting cable is plugged into the

connector labeled “Coil”, which is mounted on the right edge

of the front panel of the electronics unit. The connector ring

must be tightened.

The search with a “frame” requires an assistant who controls

the le el horizontal mo ement of the frame, using the included

belts. With another belt, the operator determines the height and

direction of mo ement and controls the detector.

Another way for indi idual work with a “frame” type search coils

is for the operator to stand/walk inside the frame holding both

belts while controlling the detector.

WARNING!

The use of this method, and/or any “entry” of the operator

or another assistant inside the “frame” of the Golden Mas

Deep Hunter Pro3se detector while in wor ing mode can

suffer adverse effects caused by the very strong

electromagnetic field that can lead to serious health

problems and/or injuries!

Golden Mask Deep Hunter pro3se – Instruction manual

GM Electronics Ltd.

If you do not ha e an assistant, “dragging” of the search coil on

a non-metallic sled (PVC, for example) is recommended. The

sled must pro ide a constant height (about 5 cm or more) of

the frame from the ground surface. The search should always

begin with a brief pressing of the “RETUNE” button (the same

is recommended to be carried out periodically during the

search) in order to maintain maximum stability and sensiti ity.

The mo ement of the antenna should be carried out in parallel

bands that o erlap by up to 30% in order to not miss any

portion of the search field. The speed of mo ement should be

about 1 yard per second.

6.Search for metal objects with handle-mounted coils.

When the terrain does not allow searching with a “frame” coil,

Golden Mask Deep Hunter Pro3se can be used with handle-

mounted round search coils. Search with such antennas does

not differ from the search with a “frame”. The round coils are

much more sensiti e to identifying small objects and should be

used for such searches. In addition, the purpose of the round

coil is to replace the “frame” in inaccessible areas and pro ide

an opportunity for indi idual work, without an assistant. The

mo ement with round coils should be done ery slowly.

Unlike traditional VLF metal detectors, using the principle of

inducti e balance, the Golden Mask Deep Hunter Pro3se can

detect metallic objects without motion. The mo ement is only

necessary to identify the type of metal, a speed of about one

m/s is sufficient for the discrimination system to function

properly.

The search height abo e the ground surface with the round

coils antenna must be constant (about 0 cm or more).

If you hold the coil too low or touch the ground, you will

experience faulty signals. All acti ities and settings

recommended for the use with “frame” coils apply as well to

searches with “hand” the round coils.

Golden Mask Deep Hunter pro3se – Instruction manual

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 impro ed

by doubling the preset frequency of the sound which is set with

the “AUDIO TONE On/Off” knob before searching starts. This

is percei ed accurately by the human ear and therefore it

needs to be set ery 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 ery 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” o er the metal object are a sure indication of relati ely

small metallic object not deeply buried. The use of a round coil

gi es 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, mo e the coil outside the target area,

press the “RETUNE” button and then pass the antenna o er

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

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