Minelab GPX5000 Bedienungsanleitung

Instruction Manual

1Congratulations on purchasing

your Minelab

metal detector!

Gold detecting is a fascinating and rewarding activity enjoyed by people all over the world. By

getting to know your GPX Series detector you can become one of the many who find gold and

valuable treasure on a regular basis.

The GPX 5000 and GPX 4800 are Minelab's most advanced gold detectors. They are high precision

instruments incorporating Multi-Period Sensing (MPS), Dual Voltage Technology (DVT), Smart

Electronic Timing Alignment (SETA) and the latest in high-tech analogue components combined

with advanced digital processing.

The GPX 5000 and GPX 4800 will locate gold in all types of ground, especially highly mineralised

ground conditions, with greater efficiency than any previous detector.

This manual is designed to help both the beginner and expert prospector get the best

performance out of their GPX 5000 and GPX 4800.

Minelab wishes you every success in your quest for gold and treasure!

Read your Instruction Manual!

A comprehensive explanation on how to use your GPX 5000’s or GPX 4800’s

functions and settings are set out within these pages. By thoroughly reading this

Instruction Manual you will have a better understanding on how to operate your

Minelab metal detector.

At the top of each page that explains a GPX Series setting you can change, the

“Range” and “Factory Preset” will be stated for that setting. Some settings are

not adjustable depending on your model and have been Factory Set. In the

example above, the available range for the GPX 5000 is Normal and Inverted,

and the Factory Preset is Normal. For the GPX 4800 you cannot adjust the setting

and it has been Factory Set to Normal.

Set the Front Control Panel switches to the

following positions.

Press and release the On/Off switch on the Rear

Control Panel (p. 26).

Raise the coil off the ground and Press the Auto Tune (p. 32)

button to reduce electrical interference. The tuning process

takes approximately 60 seconds. Do not move the coil or

pass metal objects near the coil until you hear 3 beeps.

Turn the Threshold (p. 33) control clockwise until a hum is

audible through the headphones.

Whilst raising and lowering the coil, between 25mm and

100mm (1" and 4") from the ground, change the Ground

Balance switch to Tracking (p. 40). Any variations in the

Threshold will smooth out within 3–5 seconds.

Adjust the Threshold (p. 33) to a very faint but still audible

level. It should be smooth with only minor fluctuations.

You are now ready to start searching!

Minelab is always interested in your opinions. If you have

any questions or comments regarding your GPX Series or

any other Minelab product, please feel free to contact us

directly or via your local Authorised Minelab dealer.

For further product information and detecting tips, refer to:

www.MINELAB.com

Quick Start

2 3Contents

Quick Start

Introducing the GPX 5000 and GPX 4800

List of Parts

Assembly

Adjusting the Detector for Comfortable Detecting

Charging the Battery

Battery LED Patterns

Taking Care of Your Battery

Detecting Basics

Detector Sounds

Front Control Panel

Rear Control Panel

Turning the Detector On

LCD Menu Structure

Search Mode

Tune / Reducing electrical interference.

Auto Tune

Threshold / Adjusting the background audio level.

Soil/Timings / Optimising for soil and target types.

Coil/Rx / Changing transmit (Tx) and receive (Rx) fields.

Ground Balance / Compensating for ground mineralisation.

Ground Balance Procedure for Tracking

Ground Balance Procedure for Fixed

Restoring Factory Presets

Factory Presets

Function Select Control / Scrolling through functions.

Setting Control / Adjusting settings.

LCD Backlight

Battery Test / Viewing the battery voltage.

Volume Limit / Setting the maximum volume of all sounds.

Ground Balance Type

Ground Balance Procedure for Specific

Special / Soil/Timings.

Manual Tune / Reducing electrical interference.

Changing Search Modes / Via the LCD.

Motion / Adjusting sweep speed.

Rx Gain / Adjusting the sensitivity of the detector.

Audio Type / Changing the audio response of target signals.

Audio Tone / Adjusting the pitch of the Threshold.

Stabilizer

Signal Peak / Adjusting the pitch variation of target signals.

Target Volume

Response / Inverting the pitch of the target signal.

Tracking Speed / Keeping up with changing ground.

Iron Reject

Iron Reject / Rejecting ferrous targets.

Custom Name / Changing your Custom Search Mode name.

Pinpointing / Locating the target.

Recovering the Target

Detecting Tips

Commander Coils

Choosing the Right Coil for the Job

Troubleshooting

Glossary

Taking Care of Your Detector

User Preferences

Technical Specifications

Warranty

Service and Repair Form

Front Panel Functions

Rear Panel Functions

Item Number: 4901-0096 Revision: 2

4 5FeaturesIntroducing the

and

Ground Balance (GB) Type

Ground Balance Type has three settings:

Normal, Specific, and GB Off. Normal is the

preferred setting for most soil types. Specific

Ground Balance is designed to be used in

very hot ground, and is especially useful with

Monoloop coils. GB Off switches the ground

balance circuit off for maximum depth in very

mild soils, sand etc.

Custom Search Mode (GPX 5000)

With Custom selected, a range of Custom

Search Modes become available from the

LCD menu. A mode name picker is also

included so you can name your own Search

Modes for different locations, and use them

for future visits.

Timings

The GPX Series feature a number of new

timings, increasing performance in different

conditions. Fine Gold, Salt/Gold and Coin/

Relic are new timings for the GPX 5000. Coin/

Relic is also new to the GPX 4800.

Rx Gain

The Rx Gain function sets the overall

sensitivity level of your detector. In areas

where soil conditions are mild you can

increase the Rx Gain. In areas that are more

difficult Rx Gain can be reduced.

Motion

The speed at which you sweep the coil has an

effect on target response time and Ground

Balance adjustment. Matching your preferred

coil sweep speed with the corresponding

Motion setting can reduce noise and improve

your ability to pick up targets at depth.

Response (GPX 5000)

The Response function allows you to invert

the target response. Deep targets can now

sound like the more familiar ‘rising and falling’

pitch of a shallow target signal.

Stabilizer

This feature allows you to fine tune your

audio, in order to obtain the best compromise

between smooth operation and clear

target signals.

Target Volume

Used to control the built-in amplifier which

affects the volume of target signals. It is

active with both headphones and an external

speaker. Target Volume can also be used to

reduce the severity of ground signals.

The GPX Series utilise Minelab’s proven 'Dual Voltage

Technology' (DVT). This ensures an accurate Ground Balance to

provide maximum sensitivity and depth in all ground types.

The GPX 5000 offers a total of eight Timing options, the

GPX 4800 offers six; each incorporating the all-new SETA

technology. Smart Electronic Timing Alignment (SETA)

ensures the detector is precisely aligned for each individual

Timing option. This improvement in calibration reduces the

susceptibility to certain types of interference, and significantly

improves the detector’s immunity to highly magnetic

rocks and soils.

Through a process of dynamic noise compensation,

SETA ensures that the threshold stability is improved and

maintained, allowing you to operate the GPX 5000 and GPX

4800 with maximum efficiency under all conditions.

The GPX 5000 offers six preprogrammed Search Modes, and

the GPX 4800 offers three. Both models are set up for the most

common search techniques.

Each Search Mode can be fine tuned by simply scrolling

through the various functions of the detector and adjusting

the settings.

With improved functionality and new timings the GPX 5000

and GPX 4800 are capable of finding nuggets in a diverse

range of ground conditions with greater ease than

previous detectors.

Timings stability

prior to SETA

Precisely aligned

timings after

SETA processing

Dynamic

Noise

Compensation

6 7List of Parts

Battery Harness

Lower Shaft11" Coil Upper Shaft Handle

(with Quick-Trak

Button)

Power CableLithium-ion BatteryControl Box Headphones

Instruction Manual

& Warranty Card

Armrest (2 sections) Armrest Bolts

Armrest Wingnuts

Armrest Straps Armrest Cover

Vehicle Charger Adaptor

Velcro Tabs

Bungy Cord Clamp

(Bow Knuckle) with

Bolt and Wingnut

Bungy Cord

Lower Shaft Washers Lower Shaft BoltLower Shaft Wingnut

Mains Charger Adaptor

8 9Assembly

Spring loaded pin

The Coil cable is directly wired into the coil and is not

removable. Any attempt to disconnect this cable will void

your warranty

Attaching the Lower Shaft to

the Upper Shaft:

1With the twistlock facing away from you, rotate the twistlock

of the upper shaft clockwise to ensure it is loosened, as

pictured left.

2Compress the spring loaded pin of the lower shaft. Slide

the lower shaft into the upper shaft until the pin reaches an

adjustment hole. The pin will spring out and clip into place.

3Rotate the twistlock counter-clockwise to clamp the lower

shaft and prevent movement.

Attaching the Handle to the Upper Shaft:

1Slide the bungy cord clamp onto the upper shaft.

2Slide the handle onto the upper shaft so that it angles away

from you, as shown below.

Attaching the Armrest to the Upper Shaft:

1Place the two armrest halves on either side of the upper

shaft, aligning the armrest and upper shaft holes.

2Insert the bolts through the armrest and upper shaft holes.

3Loosely fasten the wing-nuts onto the bolts (these will be

tightened after the control box is attached).

Attaching the Coil to the Lower Shaft:

1Plug the two rubber washers into the holes on either side of

the lower shaft.

2Ensure that the spring loaded pin of the lower shaft is

pointing downwards. Slide the lower shaft into the bracket

on top of the coil.

3Insert the bolt through the lower shaft and the bracket on

top of the coil. Fasten with the nut provided; being careful

not to damage the thread of the nut by over-tightening. This

may need to be loosened to adjust the coil to a comfortable

detecting angle.

Note: If the coil becomes loose over time the rubber washers

may need replacing.

10 11Assembly

Continued...

Connecting the Coil Cable:

1Wind the coil cable around the lower and upper shafts

enough times to take up the slack. Leave enough slack at

the bottom of the cable near the coil to allow the angle of

the coil to be adjusted while detecting.

2Use the velcro straps to secure the coil cable to the shaft.

3Plug the coil connector into the coil socket on the control

box, firmly tightening the retaining ring to hold it in place.

Note: If the Quick-Trak cable

becomes loose try securing

it onto the shaft with

electrical tape.

Attaching the Armrest Straps to

the Armrest:

1Press both strap studs onto the armrest studs.

2Push the armrest straps through the slots in the armrest

cover and then slide the cover over the armrest.

Connecting the Control Box to

the Upper Shaft:

1Place the detector on a flat surface, with the handle

facing upwards.

2Position the armrest on top of the control box.

3Clip the control box onto the armrest, ensuring the battery

plug faces away from the coil.

4Fasten with the wing-nuts.

5Wind the Quick-Trak button cable around the upper shaft

and plug it into the Smart Point socket in the control box.

Ensure that the cable is wrapped firmly but avoid strain on

the connector.

Always ensure that the control box is turned off before

connecting or disconnecting the coil to avoid damage to

the detector's electronics.

12 13Assembly

Continued...

Connecting the Battery Pack:

1Place the battery into the battery harness pouch.

2Connect the headphones and the power cable to the

appropriate sockets in the battery.

Note: The illustration shows

the battery orientated for a

user holding the detector with

their left hand.

Making use of the Minelab Lithium-ion

battery Amplifier:

The Minelab Lithium-ion battery contains an amplifier which

automatically increases the audio level when a correctly

wired speaker is used.

The Minelab Lithium-ion battery will automatically detect

if headphones or a speaker is in use and adjust the audio

level accordingly.

See wiring diagram below for correct speaker to audio

jack wiring.

Note: After market accessory

boosters may not operate in

conjunction with this built

in amplifier. However, the

detectors 'Target Volume'

adjustment allows you to

adjust the target signal

volume and threshold, so

accessory boosters are not

recommended.

Caution: Never re-wire your headphones so that they are

similar to the external speaker as the high audio level may

damage your hearing.

Caution: The new battery should initially be charged for

8 hours before use.

External Speaker

TipRing¼” TRS Plug

Not connected

14 15Assembly

Continued...

Fitting the Battery Harness:

1Thread your arms through the harness,

so the battery pack sits on your back.

2Clip the waist and chest buckles together.

For more detail see Adjusting the Detector for

Comfortable Detecting (p. 16).

Attaching the Bungy Cord:

1Create a loop in the bungy cord.

2Undo the plastic wingnut and remove the bolt from

the clamp.

3Push the bolt back through the clamp and loop to

secure the bungy cord to the shaft.

4Fasten the screw with the wingnut.

5Clip the bungy cord onto one of the harness

shoulder strap rings.

For more detail see Adjusting the Detector for

Comfortable Detecting (p. 16).

16 17Adjusting the Detector for

Comfortable Detecting

Note: For comfortable, long

term detecting, it is important

you take the time to adjust the

detector correctly.

Adjusting the Battery Harness:

A comfortable fitting battery harness will ensure the longest

detecting session possible without fatigue.

Ideally the battery should be placed on your back so that it

counter-balances the weight of the detector. You should be

able to reach the switches of the detector without putting

excess strain on the bungy cord.

Pull the straps outwards and downwards to tighten. Push the

straps back through the buckle to loosen.

The harness may also be adjusted around your body by

threading the front straps through different loops on

the waist belt.

Adjusting the Bungy Cord Clamp

(Bow Knuckle):

The correct position of the bungy cord clamp (bow knuckle)

along the shaft can help take the weight of the coil.

Loosen the clamp screw so it can slide along the shaft. Slide

it to a position that feels most comfortable for you.

Note: You may need to change the length of the bungy cord,

or the position of the bungy cord clamp, when you change

coils or detect on sloping ground.

Holding the Detector:

Thread your arm through the armrest and strap. Grasp the

handle of the detector and rest your forearm in the armrest.

Adjusting the Position of the Handle:

Your elbow should sit just above the back of the armrest

allowing you to comfortably grip the handle.

Slide the handle into position. Using a screwdriver, tighten the

two screws which hold the handle onto the shaft. Adjust the

handle strap to a comfortable position.

Adjusting the Length of the Lower Shaft:

If the coil is too far from your body it will be difficult to balance

and manoeuvre while detecting.

If the coil is too close to your body it may detect your pick, the

battery, or any other metal which you are carrying; causing

confusing sounds.

Rotate the twistlocks of the shafts counter-clockwise to ensure

that they are loosened.

Compress the spring pins of the shafts and move them up or

down to suit. Once all shafts are clipped into position, rotate

twistlocks clockwise onto the shafts until they are

firmly clamped.

The correct length of the lower shaft should allow you

to swing the coil in front of your body without any

uncomfortable stretching or stooping.

Shaft is the

correct length

Shaft is too short

Shaft is the

correct length

Shaft is too short

Tip: Some operators may

find it more comfortable to

fit the battery around the

waist. However, make sure

the detector isn't detecting

a signal from the battery. If

using a large coil, position

the battery as high up on

your back as practical (and

comfortable) to avoid any

unwanted interference.

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