Garrett Metal Detectors Master Hunter CX Plus User Manual

Owner’s
Manual

Master Hunter

CX Plus

$3

®

™

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Master Hunter® CX Plus Owner’s Manual

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THANK YOU FOR CHOOSING
GARRETT METAL DETECTORS!

Congratulations! As the proud owner of the Garrett
Master Hunter CX (Computer Express) Plus you
have joined an international family of treasure hunt­ers. Men, women and children alike have used their
Garrett detectors to nd coins, relics and gold nug­gets that are valued in the millions of dollars. So, to
get the most out your CX Plus and treasure hunting
experiences be sure to carefully read through this
owner’s manual!

Your Master Hunter CX Plus, whose microprocessor­controlled circuitry has been acclaimed and proven
through countless hours of eld use, is a ne detec­tor for hunting coins or any other metallic objects.
It offers the serious metal detector hobbyist added
depth and completely accurate ground balance and
the precise adjustment available only with micropro­cessor controls. Computer designed circuitry that
responds to signals from revolutionary PROfor-
mance searchcoils results in greater penetration to
discover and locate treasures of all kinds.

Your Master Hunter CX Plus is engineered with mi­croprocessor based technology and is backed by
more than 40 years of metal detection research and
development by Garrett’s leading team of engineers.
It is remarkable in its ability to locate coins, jewelry
and other metallic objects at exciting depths. And
with Garrett’s revolutionary Graphic Target Ana­lyzer™ (GTA) display that offers target acceptance /
rejection, precise discrimination and other key infor­mation, you can spend more time digging treasure
and less time digging trash!

The CX Plus is pre-programmed at the factory to
adapt itself automatically for optimum performance,
yet to always follow your targeting directions. Sim­ply press the ON touchpad and begin hunting im­mediately without interference from ground minerals.
Garrett’s unique LCD display shows the identity of
your target. Electronic pinpointing and coin depth
measuring offer added assistance.

To prospect for precious metals or hunt for deeply
buried caches, switch to the All Metal Mode and Fast
Track™ will precisely ground balance the circuitry

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of your detector. The Master Hunter CX Plus is
equipped with a 7”x10” PROformance searchcoil.

Again, welcome to the Garrett treasure hunting fam­ily. In becoming a part of this great tradition and
hobby, you have made the right start to successful
treasure hunting.

TABLE OF CONTENTS

Master Hunter® 6
Parts 7
Assembly 8
Features 11
Touchpad Controls 13
Sidepanel Controls 16
Operating Instructions 18
LCD Meter Discrimination 20
Headphone Jack 20
Batteries 21
Bench Testing 24
Test Plot Construction 27
Target Acceptance 28

Searching 32
Searchcoils 36
Gold Prospecting 37
Maintenance 40
Service and Repair 41
Recommended Accessories 43
Recommended Reading 45
RAM Books Order Form 47
Mind Your Manners! 49
Warning 50

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MASTER HUNTER® CX PLUS

Lower

Threaded

Bolt

Stem

Spring

Clip

Upper
Stem

Side Panel

Controls

Searchcoil

Knob

Control

Housing

Headphone

Jack

LCD

Screen

Touchpad

Controls

Handle

Grip

Battery

Cover

PARTS

Before assembling your CX Plus metal detector
ensure you have the complete set of parts, which
include:

• Control Housing

• Upper Stem

• Lower Stem

• Two (2) Mounting Washers

• One (1) Wing Nut

• One (1) Threaded Bolt

• Spring clip

• Searchcoil with Cable

• Instruction Video

• Warranty Registration Card
If any part is missing contact your local dealer.

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ASSEMBLY

No tools are required to assemble the Master Hunter
CX Plus. Hand tighten all necessary parts.

1. Compress the button end of the spring clip and

insert, button end rst into the lower stem of your

detector so that the buttons pop out of the holes as
they do in the upper stem. These two sets of buttons
will enable you to secure the top stem to the control
housing and to adjust the length of the overall stem
to your height so that you can scan with the detector
comfortably.

2. Attach the lower stem to the searchcoil. Make
certain that two rubber washers are inserted into this
stem before slipping the searchcoil onto it. Place the
threaded bolt through the holes in the connector and
hand tighten the knobs. No tools are needed.

3. Depress buttons in the upper stem and slide into
the control housing until they pop into the holes.

4. Depress the buttons in the lower stem and insert it
into the upper stem. Buttons will pop into the holes
and you can achieve the desired stem length. The
third set of holes from the end is most commonly
used.

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5. Wrap the searchcoil cable securely around the

stem and connect to the detector. The rst cable turn

goes over the top of the stem. The cable should be
snug, but still loose so that the angle of the search­coil can be easily changed, if required. To connect
the cable to the detector, insert the cable connector
and rotate the collar clockwise until secure.

FEATURES

1. LCD - The LCD on the Master Hunter CX Plus
provides extensive visual information for the detec­tor operator. Battery condition is reported continu­ously while the detector is turned on and information
is provided on detected targets that will aid in their
recovery.

2. UPPER SCALE - The Upper Scale provides in­formation about detected targets while the operating
mode and battery condition are displayed below.

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Coin depth reads in inches the depth of coin sized
targets. The detector automatically adjusts to re­port this information correctly whenever the Pinpoint
touchpad is pushed and released, regardless of
which size searchcoil is being used. Large or very
deep objects may not be accurately measured.

The LCD indicates the probable identication of all

targets, whether announced by an audio response
or not.

The 0 to 12 Scale is an aid when setting the Detec­tion Depth (Sensitivity) control. (Do not confuse with
the Coin Depth reading). This scale also provides
target information based on conductivity of the metal
detected, information that will become more valuable
as you gain experience. Conduct tests on metals of
interest to learn approximate readings for the various
denominations.

TOUCHPADS

1. POWER - Press the POWER touchpad once to
turn the CX Plus on. It automatically begins operat­ing in the Discrimination Mode. Press the pad again
and the detector will shut off. The detector will shut
off automatically when no touchpad is pushed and
no target is detected for about 10 minutes.

2. ALL-METAL - This touchpad serves a dual func­tion. When pressed and released, it places the de­tector in its ALL METAL mode of operation. When

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pressed and held rmly, its Fast Track function is

activated. As you begin scanning with the search­coil in a normal manner, ground balance adjustment
is quickly and automatically achieved. Repeat this
procedure at any time to achieve precise ground bal­ance.

3. PINPOINT / DEPTH - Press and hold to activate
the pinpointing function of your Master Hunter CX
Plus after you have discovered a target. A com­plete discussion of pinpointing can be found in this
owner’s manual. After you have pinpointed a target
and released this touchpad, the display will indicate
how far coin-sized targets lie beneath the bottom of
the searchcoil and the reading will be highly accurate
regardless of the size coil being used. This reading
holds for approximately three (3) seconds.

4. DISC - Press DISC (Discriminate) to return to the
Discriminate Mode when you have been operating in
the All Metal Mode. The CX Plus begins operating in
the Discriminate mode whenever it is turned on.

5. + and - - These two similar pads with arrowheads
(at extreme right of the console) are used to regulate
the Audio Threshold and Detection Depth (sensitiv­ity). If either + or - is pressed, the sensitivity in the
current operating mode will be changed. To change
the audio threshold, press and hold the All Metal
touchpad while regulating the threshold by pressing
the + or - pad.

Special Note: Don’t ever worry about “damaging”
the circuitry of your CX Plus by adjustments that you
make. Just hold down the All Metal touchpad and
press the DISC touchpad to restore factory settings.

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CONTROL FUNCTIONS - SIDE PANEL

It is recommended that you begin hunting with both
controls set at the Initial Setting (>) indicators.

1. FERROUS RANGE - Allows adjustment for the
elimination of targets in the iron range up to but not
including aluminum pulltabs. Targets located and
accepted in this range will cause your audio signal
to grow louder.

2. NON-FERROUS RANGE - Allows adjustment for
elimination of targets in the range of pulltabs through
aluminum screw caps.
Garrett’s Target Elimination controls permit you

to select the targets you desire. Furthermore, the
Multi-Range Discrimination System permits selec­tion of these targets in both Ferrous and Non-Ferrous
ranges. The Ferrous control is adjustable from zero
through bottlecap rejection while the Non-Ferrous
control takes over at pulltab rejection and is adjust­able through aluminum screw tops. Proper use of
the two controls will dramatically improve accuracy
by eliminating worthless targets in both the ferrous
and non-ferrous ranges and in accepting many kinds
of gold and silver rings, jewelry and coins.