Iron Discrimination - Minelab GP 3000 Instruction Manual

IRON DISCRIMINATION

Discrimination is the ability of a detector to distinguish between different types of
metal objects and to assist the user in identifying a target.
Some goldfields are littered with 'rubbish', e.g. metal objects which are of little
value and are an annoyance to detector users.
The GP 3000 is capable of rejecting many iron objects while still detecting
non-ferrous metals. The ability of the detector to discriminate ferrous targets
means that, while detecting in littered goldfields, much of the iron rubbish may be
ignored, with a high probability that valuable targets will not be missed.
Target Signal:
NOTE: The above zoning is only a stylistic example of how the Discrimination mode works.
The above areas are not determined by depth but by the strength of signal.
Figure 5.3 Discrimination levels
Double "D" Coil
Ground
Surface
Audio Blanking
Normal Audio
Normal Audio
Ferrous Non-Ferrous
"Disc" mode
Ferrous: Target signal blanks as coil passes over target
Non-Ferrous: Signal is more steady as coil passes over target
P0507-A
P0507-A
IRON DISCRIMINATION
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