GPX 6000™ USER MANUAL
Contents Getting Started ����������������������������������������������������������������������������������������3 Quick Start ������������������������������������������������������������������������������������������������������������3 Controls ��������������������������������������������������������������������������������������������������������������������4 Display ����������������������������������������������������������������������������������������������������������������������5 Battery ������������
Getting Started This section shows you how to quickly set up your detector to begin detecting with minimal adjustment, and describes how to identify and adjust key detector functions. Factory Default Settings Quick Start The factory default settings are optimised for detecting in almost all conditions. The settings are a practical choice for users who want to begin successfully detecting without the need to manually adjust detector settings.
Controls 1 7 2 3 6 4 5 8 1. Bluetooth® Control Enables Bluetooth® for connection of wireless headphones (page 7). Initiates Bluetooth® pairing mode for connecting Bluetooth® headphones (long press for at least 2.5 s) (page 7). 2. Backlight Adjust Cycles through the backlight brightness settings — high, medium, low and off. 3. Power On/Off Turns the detector on and off. Restores factory default settings (press and hold from off for at least 7 s) (page 3). 4.
Display 10 9 8 1 7 6 2 3 5 4 1. Bluetooth® Indicator Indicates that Bluetooth® wireless audio is on (page 7). Bluetooth® Qualcomm® aptX™ Low Latency Standard Bluetooth® 2. Double‑D Mode Indicator Only available when using a Double‑D coil (page 21). 3. Backlight Indicator Indicates that the backlight is on. 4. Ground Type Displays the selected Ground Type (page 15). Electromagnetic Interference (EMI) Cancel (default) Difficult (default) Conductive Ground Cancel Normal 5.
Battery The GPX 6000™ is supplied with a lithium‑ion rechargeable battery. Beginning each detecting session with a fully charged battery is recommended. The GPX 6000™ battery can be charged using the supplied charging methods: ` The supplied AC plug pack (100 to 240 V AC) ` Typical 12 V DC car or truck systems using the supplied direct battery connection clips. Press down on the battery locking lever to release the battery. Charging the Battery — AC Charger 1.
Bluetooth® Headphones Bluetooth® headphones with aptX Low Latency™ compatibility such as the Minelab ML 100 wireless headphones are best used with GPX 6000™ for best performance. Standard Bluetooth® headphones are also compatible. Minelab ML 100 headphones use aptX™ Low Latency technology, which delivers faster, higher quality audio than standard Bluetooth®, so it will give more precise and faster detection responses. 1 2 3 4 5 1. Volume Plus button (+) 2. Multi-function button 3.
ML 100 Headphones Pairing Procedure Pairing the ML 100 headphones is only required at first time use. They will automatically connect for all future uses. Re‑pairing is required following a Factory Reset of either the headphones or the detector. When Bluetooth® headphones are paired, the Bluetooth® Indicator will indicate the type of headphones that are in use. Standard Bluetooth® Bluetooth® Qualcomm® aptX™ Low Latency START 1. Make sure headphones are off, and close to the detector.
Coils Selecting the correct coil size and configuration will optimise your GPX 6000’s performance in a range of detecting scenarios. Understanding when to use each coil will increase the productivity of your detecting sessions. The GPX 6000™ is supplied with two coils — a GPX 11™, plus either a GPX 14™ or GPX 17™ coil depending on your region. GPX 11™ Mono The 11-inch round monoloop coil is a great general-purpose coil that is recommended for most detecting conditions.
High Performance Automatic Operation The GPX 6000™ is engineered for easy operation without loss of performance. GeoSense‑PI™ technology provides maximum depth by monitoring your detecting activity and environment — it automatically tracks and removes unwanted ground response, so minimal user input is required. Intelligent Automatic Operation The procedure below is a fail-safe way to begin detecting in a high-sensitivity automatic mode.
Automatic Sensitivity There are two Automatic sensitivity modes, Auto and Auto+. Both modes automatically maximise sensitivity and track and remove ground noise, however Auto+ can be deeper in low-noise conditions. Auto+ generally has slightly higher sensitivity allowing weaker targets to be heard, however some responses may be noise rather than weak targets. The sensitivity adjustment buttons are used to select Auto and Auto+.
Manual Procedures and Settings Go beyond the factory default Automatic settings to gain even greater control of your GPX 6000™. This section describes how and why you should adjust key detector settings to optimise your detector for specific detecting scenarios. Manual Sensitivity Choose the highest stable manual sensitivity setting for optimum performance, or use the automatic settings. Sensitivity levels 1 to 10 are manual sensitivity settings.
Noise Cancel If audio responses become erratic due to EMI, initiate the Noise Cancel process to automatically select a quieter detecting channel. Noise Cancel Procedure START 1. Hold the coil 100 mm (4 in) above the ground. Hold the coil still and 100 mm (4 in) above, and parallel to the ground for the duration of the Noise Cancel procedure. 100 mm (4") 2. Press the Noise Cancel button. Press the Noise Cancel button.
Double‑D Coil Noise Cancel Procedure The GPX 6000™ Double‑D coil excels in locations that have very high levels of interference. They are less noisy than mono coils, but also provide less depth. Generally, a Double‑D coil should only be used if noise cannot be managed by using a Mono coil with the Noise Cancel Procedure (page 13). This procedure can be used in areas that have known high levels of EMI or very conductive (salty) soils. START 1. Connect the GPX 14™ Double‑D coil. 2.
Ground Balance Ground Balancing enables the detector to separate unwanted ground signals from target signals. The GPX 6000™ features automatic ground tracking as well as manually initiated Ground Balance. It also has two Ground Type settings for even greater Ground Balance control. The GPX 6000™ is constantly monitoring and tracking the ground as well as the operators’ input in order to track and remove ground noise.
Quick‑Trak Ground Balance Procedure Follow the Quick‑Trak Ground Balance procedure to quickly recalibrate the detector to the new ground. GPX 6000™ tracks automatically to changing ground conditions during normal use. It is effective for typical detecting in most grounds. There will be times when the automatic ground tracking will not be able to track fast enough, such as when moving to a different type of ground.
Ground Balance Procedure A complete Ground Balance procedure is recommended below. This guides you through the ideal steps to deal with a number of different ground conditions. The procedure is a sequence of steps that will help you to identify the type of ground you are detecting, and then provides the best steps to manage that noise. Ground is categorised into three types: ` Normal — Ground with low levels of mineralisation.
Ground Balance Procedure (Continued) Conductive (Salty) Ground 7. Change to a Double‑D coil. Turn off the detector and change to a Double‑D coil (see "Changing the Coil" on page 9). 8. Turn the detector on. Turn the detector back on. 9. Ensure the Double‑D mode is set to Conductive Ground Cancel. To set the Double-D mode to Conductive Ground Cancel, long press the Noise Cancel button for at least 2.5 seconds. Long press for at least 2.5 s 10. Quick‑Trak. Perform the Quick‑Trak procedure (page 16).
Advanced Concepts Identifying the Source of Detector Noise When detecting, there are generally three types of noise that can be heard depending on the detector settings, detecting location, or other factors. Accurately identifying the type of noise you are experiencing will help you to apply the correct solution. Metal detectors experience background noise that can usually be attributed to one or more of three external sources.
To Manage Ground Noise: ` ` Perform a Ground Balance. To achieve the most thorough Ground Balance, follow the full-length Ground Balance Procedure (page 17). To rapidly balance to the ground, follow the Quick‑Trak Ground Balance Procedure (page 16). In variable ground, use the Difficult Ground Type setting (page 15). Conductive Ground Noise Conductive soils commonly occur when the soil contains salts.
Double‑D Modes Double‑D Modes manage noise from EMI or conductive (salty) ground when using the GPX 14™ Double‑D coil. These modes are only available when a Double‑D coil is in use. A Double‑D coil has characteristics that allow it to cancel out EMI and conductive (salt) signals. A Double‑D coil contains two back‑to‑back 'D' shaped copper wire windings that overlap in the centre of the coil. The GPX 6000™ can sense targets in each of these two windings.
Threshold Tone The optional Threshold Tone is a constant background tone that can help to make tiny signals more apparent. It can also help you to set the optimum sensitivity level. See "Manual Sensitivity" (page 12) for more information on using the Threshold Tone when adjusting the manual sensitivity to maximise the depth of your detector. The Threshold Tone is off by default in Auto and Auto+ sensitivity, and On by default in all Manual sensitivity settings. The Threshold Tone can be toggled on/off.
Troubleshooting If you experience any of the problems listed in this section, follow the recommended steps, in order, before contacting an authorised Minelab service centre. Errors Coil Error System Error If there is a coil error, the error icon and the coil icon is displayed for 5 seconds before the detector automatically powers off. If there is a system error, the error icon is displayed for 5 seconds before the detector automatically powers off.
General Troubleshooting Detector does not turn on, or turns off by itself 1. Charge the battery. No sound — ML 100 Headphones, wired operation 1. 2. 3. 4. 5. Check that the detector is on, and start-up has completed. Check that the headphones are plugged in. Check that volume is set to an audible level. Unplug the headphones and confirm that the detector speaker is audible. If available, try using a different set of headphones. No sound — ML 100 Headphones, wireless operation 1.
Care and Safety Operate and maintain your detector following the below recommendations to ensure its safe use and long life. ` Do not submerge the detector body in water — it is rain-proof only. ` All GPX 6000™ coils are waterproof to 1 metre (3.3 feet), however care must be taken to ensure the coil connector is not submerged. ` The battery pack is not waterproof— Do not immerse the battery pack in any liquid or allow water ingress.
Specifications Search Modes (Ground Type) Double-D Modes Ground Balance Noise Cancel Equipment may vary according to the model or items ordered with your detector. Minelab reserves the right to respond to ongoing technical progress by introducing changes in design, equipment and technical features at any time. Difficult (default) Normal EMI Cancel (default) Conductive Ground Cancel Auto Manual (Quick‑Trak) For the most up-to-date specifications, visit www.minelab.
www.minelab.
