Introduction The following terms are used throughout the manual, and are standard terminology among treasure hunters. ELIMINATION Reference to a metal being "eliminated" meansthatthe detectorwillnot emit a tone, nor light up anindicator, when a specified object passes through the search coil's detection field. DISCRIMINATION Whenthedetectoremitsdifferenttonesfordifferenttypesofmetals,and when the detector "eliminates" certain metals, we refer to this as the detector "discriminating" among different types of metals. Discrimination is an essential feature of professional metal detectors. Discrimination allows the user to ignore trash and other undesirable objects. RELIC A relic is an objectofinterest by reasonofitsageorits associationwith the past. Many relics are made ofiron, but can also be made ofbronze or precious metals. IRON Ironis a common,low-grade metalthat is an undesirable target in certain metal detecting applications. Examples ofundesirable iron objects are old cans, pipes, bolts and nails. Sometimes,thedesired targetismadeofiron. Property markers, for instance, containiron. Valuable relics can also be composed ofiron; cannon balls, old armaments, and parts ofold structures and vehicles can also be composed of iron. FERROUS Metals which are made of, or contain, iron. PP--PINPOINTING Pinpointing isthe process offinding the exactlocation ofa buried object. Long-buried metals can appearto the eye exactly like the surrounding soil, and can therefore be very hard to isolate from the soil. V.C.O. Meaning "voltage controlled oscillator",the V.C.O.audio method causes both the audio pitch and the volume to rise as signal strength increases. V.C.O. improves the user's ability to interpret a target's size and depth. Very weak signals (for small or very deeply buried objects) have the faintest volume and the lowest pitch. Larger objects, and those closer to the search coil, will induce a higher volume and higher pitch sound. GROUNDBALANCE GroundBalancingistheabilityofthedetectorto ignore,or"seethrough"the earth's naturally occurring minerals, and only sound a tone when a metal object is detected. The Z60 incorporates proprietary circuitry andprogramming to eliminate false signals from severe ground conditions.
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