Minelab GPX-4000 Manuel de service

SearchModeSoil /TimingsGroundBalanceCoil /RxCancelTrackingSaltDeepPatchSensitiveFixedDouble DMNGSet the front panel switches to the following position

14 15Assembly Fitting the Battery Harness:1 Thread your arms through the harness, so the battery pack sits on your back. 2 Clip the waist and chest

16 17For comfortable, long term detecting, it is important that you take the time to adjust the detector correctly. Adjusting the Detector for Comfort

18 19The aluminium battery case contains the 7.4V Lithium Ion battery pack and an internal charging circuit. Supplied with the GPX-4000 is a mains cha

20 21The Lithium Ion battery is specifically designed for the GPX-4000.The Lithium Ion battery is not compatible with previous detectors and for this

22 23Detector SoundsThreshold (Background sound)This is the background sound produced by the detector. When a target is detected, the Threshold change

24 25Auto TuneSearchModeSoil /TimingsGroundBalanceCoil /RxCancelTrackingSaltDeepPatch Sensitive Fixed Double DMNGThresholdCoilSmartPointSearch Mode Ea

26 27Turning the Detector OnFunctionSelectSettingOn/OffHold for FPIt is best to only turn the detector on when outdoors and away from sources of elect

28 29Search ModeThe GPX-4000 has 3 separate Search Modes: General (G), Patch & Deep. Each Search Mode has a series of Factory Preset settings save

30 31The GPX-4000 is provided with a Factory Preset selection of menu settings, suitable for first-time users.Until you become more familiar with the

32 33Tuning should be done initially with the Coil switch in Double-D or in Monoloop (M). If the interference is still severe after completing the tun

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34 355ISFTIPMEMFWFM"VEJP3BOHFUIBUZPVBSFBCMFUPIFBSThresholdAdjusting the Background Audio LevelThreshold is the constant audible backgroun

36 37Soil /TimingsSaltSensitiveNThe Soil/Timings switch has the ability to change the electronic 'timing' or pattern of the pulses. This opt

38 39GroundBalanceTrackingFixedTrackingFixedGround BalanceReducing Ground NoiseThe ground contains not only sand, but also many different chemicals, m

40 41TrackingGround Balance Procedure for Tracking(For Ground Balance Type – General)100mm (4")1 Find a clear area of ground without any targets

42 43Ground Balance Procedure for Fixed(For Ground Balance Type – General)1 Find a clear area of ground without any targets.2 Change the Ground Bala

44 45Coil/Rx allows you to change the sensitivity and search patterns of receive (Rx) fields of the coil. The GP series or Commander Range of Double-D

46 47FunctionSelectSettingFunctionSelectSettingFunctionSelectNavigation Arrows indicate which way the setting can be adjustedFunctionFactory Preset In

48 49The Main Menu functions are the same for each Search Mode.The Mode Edit functions can be saved with different settings for each Search Mode.GPatc

50 51RangeFactory Preset1 to 4025Volume Limit is the maximum level of sound emitted by the detector when a target is detected.If the Volume is set to

52 53You are more likely to hear a target signal when both the volume and the tone of the target signal change upon detection rather than the volume a

1Gold detecting is a fascinating and rewarding activity enjoyed by people all over the world. By getting to know your GPX-4000 you can become one of t

54RangeFactory PresetSlow, Medium, FastMedium55Tracking SpeedKeeping up with Changing Ground(Ground Balance, pg. 40)When searching in highly variable

56 57Ground Balance Type(Ground Balance, pg. 38)GeneralThis is the best Ground Balance Type for use in over 90% of goldfield soils and uses the conven

58 59The GPX-4000 is capable of rejecting many iron/ferrous targets while still detecting non-ferrous targets. While detecting in littered goldfields,

60 61There is usually some merging of characteristics between targets that are clearly ferrous and others that are ‘maybe’ ferrous. Iron Reject allows

62 63Manual Tune allows you to select a particular channel, or you may want to fine tune the detector after performing an auto-tune. If detecting in a

64 65GainAdjusting the Sensitivity of the DetectorThe Gain function allows the GPX-4000 to be optimised for differing conditions, controlling the sens

66 67MotionAdjusting Sweep SpeedThe speed at which you sweep the coil has an effect on target response time and Ground Balance adjustment. Matching yo

68 69ResponseInverting the Pitch of the Target Signal/PSNBM4NBMM5BSHFU3JTJOH5POF'BMMJOH5POF*OWFSUFE4NBMM5BSHFU3JTJOH5POF'BMMJOH

70 71PinpointingLocating the TargetTo find an object and reduce the size of the hole required to remove it from the ground, it is necessary to pinpoin

72 73Recovering the TargetIt is essential to carry at least one of the following digging tools with you when searching: - a small, strong digging spa

2 3ContentsQuick Start Back CoverIntroducing the GPX-4000 4List of Parts 6Assembly 8Adjusting the Detector for 16Comfortable Detecting Charging t

74 75• Do not try to eliminate what might appear to be a faint, isolated ground noise by balancing the detector over the target because you may be ‘b

76 77.POPMPPQ%PVCMF%%PVCMF%4JEFWJFXThe GPX-4000 is supplied with the 11" Double-D coil. This coil has an excellent combination of depth, s

78 79Choosing the Right Coil for the JobCoil Size and DepthA larger coil will typically find targets buried deeper in the ground, but they can be less

80 81TroubleshootingNo sound• Check that the detector is on (battery, power cable, connections and LCD)• Turn the Threshold control fully clockwise• T

82 83Hot Rock An individual rock which has a high degree of mineralisation in comparison to the surrounding ground around it. Due to this difference,

84 85The GPX-4000 is a high quality electronic instrument. Take care of your detector in the following way:Taking Care of Your DetectorThe control box

86 87WarrantyThe GPX-4000 control box has a 2 year warranty covering parts and labour. The GP series / Commander coils have a warranty for one year ag

Today’s DateDetector / ModelSerial NumberPurchased FromPurchase DateFaulty Part(s)Owner’s NameAddressTelephone ( ) Day HomeFax ( )EmailService Rep

4 5Introducing the GPX-4000New FunctionsGain – The Gain function sets the overall sensitivity level of your detector. In areas where conditions are mi

6 78BJTUCFMU#BUUFSZ)BSOFTT-PXFS4IBGU%%$PJM6QQFS4IBGU)BOEMFXJUI2VJDL5SBL#VUUPO1PXFS$BCMF-JUIJVN*PO#BUUFSZ$POUSPM#PY )FBEQIPOFT*OTUSVD

8 9 Attaching the Coil to the Lower Shaft:1 Plug the two rubber washers into the holes on either side of the lower shaft.2 Ensure that the spring l

10 11Assembly Connecting the Coil Cable:1 Wind the coil cable around the lower and upper shafts enough times to take up the slack. Leave enough slac

12 13 Attaching the Waistbelt to the Battery Harness:1 Place the belt on a flat surface with the studs facing up. Ensure that all the studs are uncl