Minelab GPX5000 User manual

Contents:
1. Quick start sequence
2. Search modes
3. Soil timings
4. Coil/RX
5. Reset GPX 5000
6. Volume limit
7. Manual Tune
8. Audio type
9. Stabilizer
10.Signal Peak
11.Target Volume
12.Response
13.Tracking Speed
14.Iron Reject

Step 1:
Set the front panel switches
to the following positions

Step 3:
Raise the coil off the ground
as shown and Press the AUTO
TUNE Button
Step 2:
Press and Release the
ON/OFF switch on the Rear
Control Panel

Step 4:
Turn the THRESHOLD control
clockwise until a hum is
audible through the
headphones.
Step 5:
Whilst Raising and Lowering
the coil between 25mm and
100mm from the ground
change the Ground balance
switch to TRACKING,
threshold smooths out in 3~5
seconds

Step 6:
Adjust the threshold to a very
faint but still audible level. It
should be smooth with minor
fluctuations

Front control panel
Rear control panel

The GPX 5000 has three search modes switch position
DEEP GENERAL CUSTOM
CUSTOM mode is an open position, which allows for
the selection of one of the FOUR additional Search modes
Via the rear panel and LCD Menu
GENERAL MODE: Best compromise of sensitivity, stability, depth and signal response under a variety of conditions
DEEP MODE: Used to detect a SMALL AREA VERY SLOWLY & CAREFULLY. It is optimised for very slow sweep to
provide maximum depth, on large targets.

GENERAL mode
DEEP mode
CUSTOM mode
Front panel
REAR panel LCD settings
Patch
Hi-mineral
Hi-trash
Pin-POINT

CUSTOM MODE:
The CUSTOM search mode provides four additional search modes which can be selected from LCD MENU.
PATCH
Hi-Mineral
HI-TRASH
PINPOINT
PATCH: it is set up for prospecting unknown ground, when you are likely to be walking and detecting faster,
seeking a first NUGGET that may indicate a new area worthy of further investigation.
Hi-Mineral: For highly mineralized soils, will remain sensitive to small and deep targets.
Hi-Trash: for area containing lot of rubbish. The IRON REJECT setting is set quite high.
Pinpoint: this mode will provide a louder, more obvious response on a target that has already been located in
another search mode

We can Customize all the four modes in CUSTOM SEARCH

NORMAL: gives best performance on wide variety of soil conditions
will provide the best depth on a wide variety of target sizes
Enhance: Very effective in cancelling most ground noise signals and
reduces response on hot rocks. It works very well with
MONO LOOP coils
Special: for selecting one of the extra timings available through the LCD
menu

SENSITIVE SMOOTH: smaller shallow nuggets in highly mineralised soils.
best to USE with MONO LOOP COIL
FINE GOLD: highly sensitive to ROUGH / FLAKY GOLD , ignores most hot rock signals and false
ground noise
SENSITIVE EXTRA: helps to smooth out threshold in certain ground types, particularly with DOUBLE D COIL.
MILD GROUND, SMALL & DEEP TARGET
SALT/GOLD: Mineralised soils that have a high salt content, dry island salt lakes, high salt concentrated gold fields
and mineralised saltwater beaches
SHARP: Similar to NORMAL, more powerful detection field, improved depth but susceptible to interference
works well with DD COIL
COIN/RELIC: lightly mineralised soil BEACH maximum depth on range of targets. Common parks, Ovals and old
home sites.

Best for medium to very high mineralisation
Excellent for pinpointing
Target response is strongest from centre of the coil
For Low to medium mineralisation
MONO + SENSITIVE EXTRA good for small nuggets
Using DOUBLE D increases sensitivity but is unstable in heavily mineralised ground
For areas of electrical interference
Where there is difficulty in TUNING
Near power lines, phone towers, or under poor atmospheric conditions