Minelab X-Terra 705 Instruction Manual page 13

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preset discrimination patterns
The X-Terra 705 has an All Metal Pattern, four
preset Discrimination Patterns and Iron Mask.
The combinations of accepted and rejected
segments are referred to as Discrimination
Patterns. The X-Terra 705 has preset
Discrimination Patterns that have been
customised to detect general desired targets,
such as coins and jewellery.
Patterns 1, 2, 3 and 4 can be edited by you
to create your own custom Discrimination
Patterns. Edited patterns are automatically
saved when switching patterns and when the
detector is turned off.
(Editing Discrimination Patterns, p. 25)
(Erasing Patterns, p. 46)
In Prospecting Mode, the objective is to find
targets in mineralised, 'difficult' ground where
target signals overlap each other.
The Discrimination Scale becomes an
expanded Ferrous Discrimination Scale (Iron
Mask Discrimination Scale).
If the Iron Mask setting is adjusted towards 0
most gold nuggets will be accepted, but some
ferrous junk may also be accepted.
If the Iron Mask setting is adjusted towards 20,
more ferrous junk will be rejected but some
gold nuggets may also be rejected.
It is recommended that Iron Mask
levels be kept low to avoid missing
valuable targets.
All Metal pattern
Accepts signals from all types of metals,
everything from jewellery to rusty
nails (all target IDs). No target signals are
rejected.
pattern 1
Accepts signals from nonferrous targets, e.g.
gold jewellery and silver coins (target IDs: 2, 4,
6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32,
34, 36, 38, 40, 42, 44, 46). Rejects ferrous objects
and hot rocks (target IDs: -8, -6, -4, -2, 48).
pattern 2
Accepts signals from nonferrous targets (target
IDs 8, 10, 12, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46).
Rejects those from ferrous objects, hot rocks
and some nonferrous targets, e.g. aluminium
foil and pull tabs (target IDs -8, -6, -4, -2, 2, 4, 6,
14, 16, 18, 20, 22, 24, 26, 48).
pattern 3
Accepts signals from some ferrous (relics)
and most nonferrous targets (target IDs -6, -4,
6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32,
34, 36, 38, 40, 42, 44, 46). Rejects those from
ferrous objects, hot rocks and some nonferrous
targets, e.g. aluminium foil (target IDs -8, -2, 2,
4, 48).
pattern 4
Accepts signals from some ferrous and most
nonferrous targets, e.g. gold jewellery and
silver coins (target IDs: -2, 2, 4, 6, 8, 10, 12, 14, 16,
18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44,
46). Rejects most ferrous objects and hot rocks
(target IDs: -8, -6, -4, 48)
Iron Mask
Accepts or rejects signals from
ferrous and nonferrous targets, e.g. gold
nuggets.
Iron Mask level = 5 Iron Mask Level = 20
The Iron Mask only uses 20 segments
of the Discrimination scale.
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Example targets only
Iron Mask Level =5
Ferrous Gold
0 5 20