Minelab Mine lab Explorer IITM manual Interpreting target responses, Conductivity, Ferrous content

			THE MINELAB EXPLORER II
Discrimination	•	The horizontal dimension (or axis) rates the extent of the
		object’s resemblance to ferrous characteristics.
Discrimination is the ability of a	•	The object’s cross-referenced rating is represented by a
		‘target crosshair’ inside the rectangular display area.
metal detector to identify the user’s
desired target (e.g. jewelry) and
eliminate signals from unwanted
material (e.g. nails).	Interpreting target responses
The Explorer II can be programmed	Conductivity
in a number of ways to discriminate	•	Objects with high conductivity (e.g. large silver coins, copper
against unwanted targets in different
		items) will cause the target crosshair to appear at the top of
types of ground.		the Smartfind screen.
	•	Objects with low conductivity (e.g. small alloy coins, foil) will
		cause the target crosshair to appear at the bottom of the
		Smartfind screen.
	Along with the type of metal, the size of objects will have some
	effect on the conductivity rating for targets. Generally, the larger
	the target, the higher the corresponding conductivity rating (and
	proximity of the target crosshair to the top of the screen).			5
		to appear on the left of the screen unless its rating would		QUICKSTART
	Ferrous content
	•	Objects with high ferrous content cause the target crosshair
		situate the object in the dark area of the discrimination pattern
		(see page 44).
	•	Objects with low ferrous content (e.g. jewelry, coins) cause
		the target crosshair to appear on the right of the screen.
	The preset discrimination setting is designed to search for Coins.
	NOTE		Both ferrous and non-ferrous objects have varying
	degrees of inductive response to electromagnetic waves.
	This characteristic – in addition to conductivity – allows for
	more accurate identification of targets.
				43
			QUICKSTART’S SMARTFIND DISPLAY