Minelab E-Trac, Руководство пользователя

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Expert Menu
The Expert Menu contains some of E-Trac’s more advanced settings
and functions and some of these are covered in extra detail here.
Trash Density:
The Factory Preset is: Low
The Trash Density setting of either Low or High will, enable you to
optimize the Discrimination of the detector for areas that have (a)
highly variable ground mineral levels (b) ground with unusually high
amounts of ferrous objects e.g. habitation sites or old Roman sites.
When the Discrimination Pattern is ‘All-Metal’ the Trash Density (TD) setting has no effect. When the
Discrimination Pattern has rejected (black) areas, E-Trac will produce different detection results depending
on the TD setting. The TD setting will not affect the target audio response.
Low is recommended in areas that have low target density (“not more than one target under the coil at any
time”), low ground mineralization and in areas with sporadic iron trash.
High is then recommended in ground where the target density is high (“more than one target under the
coil at any time”), the mineralization content can vary, at times even in adjoining fields or in a single field
split into two by a track …(yes, it does happen and levels can be very different) and where the areas being
searched contain masses of iron targets.
Ground:
The Factory Preset is: Difficult
The Ground settings, either Neutral or Difficult, affects the way E-Trac responds to the mineralization
present in the soil.
The correct Ground setting will reduce false signals from the soil.
So therefore, a good question would be: “How would I know which setting I should set E-Trac to”? One of the
answers to that lies in the Sensitivity range of the E-Trac, particularly the Auto or A setting. If the A ranges
upwards and stabilizes at a high setting then it could be determined that the ground is ‘normal’ and the
Neutral setting would be best applied there. Conversely, other clues could be if E-Trac does not range to
a high A setting and produces spurious false signals and loses threshold tone, it could be determined that
the ground is mineralized and the Difficult setting a better option at that location.
Bear in mind too that at times certain types of soils might have no pronounced effect. Should that happen
either Neutral or Difficult can be used.
For beach hunting Neutral should be used for the majority of situations and should black sand be present
then some experimentation should be done to deal with that challenge with ease. Geographical black
sand areas may vary, so on-site testing would be recommended.