Minelab GP Extreme User Manual Download Page 33

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take care

The ‘GP  extreme’  is  a  high  quality  electronic  instrument.    It  has  been  designed  for

professional  gold  prospecting  use  and  the  electronics  circuitry  is  housed  in  a

rugged  case.  Take  care  of  your  detector  in  the  following  way:

Keep the detector clean and dry. It is very important to keep all electrical connectors clean and dry.

The control box is not waterproof, even though it has been designed to be water-resistant. Take

care to avoid it becoming wet.

The coil is water resistant and may be used in rain or wet conditions. The coil is not waterproof. Do not

immerse the coil in water.

Regularly replace such items as teardrop washers and skidplates to give long life to your detector.

Do not expose the detector to high temperatures or leave it in the sun for longer than is necessary.

Shading will help protect it. Do not leave the detector in a closed vehicle, especially in the sun.

The coil housing will eventually wear through if you scrub the ground with it while searching. Use of a

replaceable skid plate will help to protect your coils

To prevent dirt entering between the coil and the skidplate, silk tape, e.g. Leukosilk®, which is available

from chemists, may be used. The use of some other tapes, e.g. insulation tape, may result in some loss

of sensitivity.

The control box and coil should not come into contact with petrol or other oil-based liquids. If any part of

the detector comes into contact with corrosive substances, including salt or salt water, it should be

washed with fresh water.

Clean the detector with a damp cloth using a mild soap detergent. Do not use solvents.

D E T E C T O R   C A R E   A N D   S A F E T Y

DETECTOR CARE AND SAFETY

THIS DEVICE COMPLIES WITH 

PART 15 OF THE FCC RULES 

Operation is subject to the following two 
conditions: (1) this device may not cause 
harmful interference, and (2) this device 
must accept any interference received, 
including interference that may cause 
undesired operation.

For Consumers within the European Union: 
Do not dispose of this equipment in general 
household waste.
The crossed out wheeled bin indicated  
on this equipment is an indicator that 
this unit should not be disposed of in 
general household waste, but recycled 
in compliance with local government 
regulations or environmental requirements.
Please dispose of this equipment via a 
recycling service or centre, or by returning  
the unit to the respective Minelab or Halcro 
outlet as appropriate for your unit. This will 
enable the equipment to be disposed of in 
an environmentally safe manner.
Disposal of unwanted electronic equipment 
in landfilled waste may contribute to 
adverse long term environmental effect 
due to the leaching of contaminating and 
toxic substances contained within some 
electronic equipment.

Working for a Cleaner, 

Greener Future

Disclaimer: 

The Minelab metal detector discussed 
in this operating manual has been 
expressly designed and manufactured 
as a quality hobbyist metal detector 
and is recommended for use in coin, 
treasure and general metal detection in 
non-hazardous environments. This metal 
detector has not been designed for use 
as a mine detector or as a live munitions 
detection tool.

Please note: 

Since there may be a variety of options 
available for this detector, equipment 
may vary according to the Model or 
items ordered with your detector. Certain 
descriptions and illustrations may also 
differ (in this manual) from the exact Model 
that you purchased. In addition, Minelab 
reserves the right to respond to ongoing 
technical progress by introducing changes 
in design, equipment and technical 
features at any time.

Summary of Contents for GP Extreme

Page 1: ...Minelab USA Inc 871 Grier Drive Suite B1 Las Vegas Nevada 89119 United States of America Telephone 1 702 891 8809 Facsimile 1 702 891 8810 Email info minelabusa com...

Page 2: ...THE MINELAB GP extreme I Minelab GP extreme 4901 0036 Version 0 1 4901 0036 Revision 1 2...

Page 3: ...data or restricted rights data or both Patents and trademarks apply THE MINELAB GP extreme III TABLE OF CONTENTS INTRODUCTION 1 About this manual 2 Introducing the Minelab GP extreme 3 ASSEMBLY 5 Unpa...

Page 4: ...he Minelab GP extreme 50 Troubleshooting 51 Service repair form 52 Warranty 53 Accessories 54 Glossary of common terms 55 Detector care and safety 59 An important message from Minelab 60 7 THE MINELAB...

Page 5: ...ng tips ABOUT THIS MANUAL THE MINELAB GP extreme INTRODUCTION 1 3 Minelab GP extreme is the first detector to use Dual Voltage Technology DVT Minelab have developed this new Dual Voltage Technology DV...

Page 6: ...nternational Limited Laragh Bandon Co Cork IRELAND email minelab minelab ie tel 353 23 52101 Contact Minelab Minelab Electronics Pty Ltd PO Box 537 Torrensville Plaza South Australia 5031 AUSTRALIA em...

Page 7: ...d Figure 2 1 Contents of the GP extreme pack P0501 A easy reference UNPACKING YOUR GP extreme THE MINELAB GP extreme 7 ASSEMBLY 2 LIST OF PRE ASSEMBLED SECTIONS AND PARTS PRE ASSEMBLED SECTIONS Figure...

Page 8: ...COMPLETE ASSEMBLY INSTRUCTIONS Attaching the handle and bungy cord Figure 2 4 refer also Figure 2 2 STEP 1 Slide the handle 9 onto the other end of the upper shaft 8 and set it to a comfortable posit...

Page 9: ...ctor and cause random noises which may be confusing HINT Use only the 6v DC battery supplied CAUTION Attaching the lower fibreglass shaft Figure 2 2 STEP 1 Slide the lower fibreglass shaft 4 into the...

Page 10: ...ww minelab com THE MINELAB GP extreme 13 BATTERIES 3 3 Battery The GP extreme is supplied with a 6v DC rechargable battery pack plus both mains and vehicle chargers This chapter provides details on ba...

Page 11: ...battery in approximately 20 hours The 1000mA charger will recharge a completely flat battery in approximately 10 hours Partially discharged batteries require a shorter period to recharge Allow approx...

Page 12: ...ww minelab com THE MINELAB GP extreme 17 4 CONTROLS 4 Controls It is important to familiarise yourself with the features of the GP extreme control panel A few minutes spent reading this chapter will b...

Page 13: ...oving the coil over the ground Ground noise is caused by the changing chemistry or mineralisation of the ground When the Balance switch is set to Tracking these effects are greatly reduced Tune Indica...

Page 14: ...too high then small variations in audio signal might not be discernible above the threshold level Figure 4 5 An example of this would be to hear a whisper within a crowded noisy room Figure 4 5 Thresh...

Page 15: ...igh low pitch variance to a target is reduced At maximum position the high low pitch variance to a target is increased CONTROL FUNCTIONS Figure 4 12 Signal control Audio Figure 4 13 Reduced pitch vari...

Page 16: ...Cancel Figure 4 21 Changes the sensitivity and search pattern of the coil to allow the GP extreme range of coils to become multi versatile coils with different characteristics to suit different envir...

Page 17: ...Fixed the ground balance remains at the current level When Balance is changed from Fixed to Tracking the detector begins to automatically ground balance through a two stage process that is described o...

Page 18: ...TIONS HINT Take time to read this manual thoroughly to obtain the best performance from your new GP extreme detector THE MINELAB GP extreme 28 O P E R A T I O N 5 www minelab com QUICK START INSTRUCTI...

Page 19: ...extreme 31 O P E R A T I O N 5 DETAILED OPERATING INSTRUCTIONS E Enhance changes the way the coil transmits and receives its signals Operating in enhanced the coil has some of the characteristics of a...

Page 20: ...e detector known as ground noise The GP extreme has the ability to cancel out the effects of ground mineralisation This minimises ground noise and retains maximum sensitivitytometaltargets Cancellingt...

Page 21: ...able use Tracking If the ground is very mild use Fixed and switch back to Tracking temporarily if the threshold becomes noisy Do not test a target by switching to Tracking when the coil is above it HI...

Page 22: ...al should be heard until the detector determines that the object is ferrous At this point the signal will blank The strength of the target response required for discrimination to occur may be altered...

Page 23: ...t response should pause the tracking mode but weak responses may be mistaken for ground mineralisation MAX FULLY CLOCKWISE Almost all iron objects are discriminated but a few small non ferrous items w...

Page 24: ...e coil it is important to keep it parallel to and at the same height from the ground at all times Lightly skidding the coil across the ground can sometimes help in this depending on mineralisation Do...

Page 25: ...ery carefully this is more important than looking SLOW DOWN Do not rush take your time For Maximum Gold Recovery THE MINELAB GP extreme 43 D E T E C T I N G 6 IDENTIFYING TARGET SIGNALS IDENTIFYING TA...

Page 26: ...of the coil if operating with the RX switch set to Enhance or Cancel THE MINELAB GP extreme 45 D E T E C T I N G 6 RECOVERING THE TARGET When you are sure of the location of the target it is necessary...

Page 27: ...TEP 3 Keep testing the target location as you dig deeper STEP 4 Take care that the target is not in the wall of the hole You may dig past it Try pinpointing again to check your hole is in the correct...

Page 28: ...D E T E C T I N G 6 www minelab com THE MINELAB GP extreme 49 USER INFO 7 7 User Info This chapter provides a glossary of terminology user guides technical specifications warranty and repair details...

Page 29: ...7 TROUBLESHOOTING Use the following table to check for suggested solutions to problems No sound Turn Threshold control fully clockwise Turn Volume control clockwise Check power cable and connections C...

Page 30: ...________________ Phone Day ______________________ Home _______________________________________ Fax ____________________________ Email ____________________________________________ SERVICE REPAIR FORM S...

Page 31: ...d by the coil All user selectable functions knobs switches are located on the front and rear panels of the control box Discrimination The ability of a metal detector to estimate if a located target is...

Page 32: ...position of the detected target RX RX refers to the response or electromagnetic field which is received back by the coil and is used by the control box circuitry to detect a metal item in the ground...

Page 33: ...AND SAFETY THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any in...

Page 34: ...filling of holes this should ensure the continued access to areas for prospecting and treasure hunting This will also ensure that the pristine condition of our beautiful bushland forests and dry land...

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