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manual abstract
While the most difficult aspects of metal detecting have been automated, it is a sophisticated electronic device which requires an understanding of some basic features and metal detecting concepts. If you do not have prior experience with a metal detector, we strongly recommend that you: 1) Adjust the Sensitivity to a low setting in the event of false signals. Always begin use at a reduced OWNER’S MANUAL The Discovery 3300 is a professional metal detector. While the most difficult aspects of metal detecting have been automated, it is a sophisticated electronic device which requires an understanding of some basic features and metal detecting concepts. If you do not have prior experience with a metal detector, we strongly recommend that you: 1) Adjust the Sensitivity to a low setting in the event of false signals. Always begin use at a reduced sensitivity level; use at full sensitivity after you have become familiar with the detector. 2) Do not use indoors. This detector is for outdoor use only. Many household appliances emit electromagnetic energy, which can interfere with the detector. If conducting an indoor demonstration, turn the sensitivity down and keep the search coil away from appliances such as computers, televisions and microwave ovens. If your detector beeps erratically, turn off appliances and lights, especially those with dimmer switches. Also keep the search coil away from objects containing metal, such as floors and walls. 3) Read this manual. Most importantly, review the Quick-Start Demo (p.7-8) and Basic Operation (p. 9-11). 4) Use 9-volt ALKALINE batteries only. Do not use Heavy Duty Batteries. TABLE OF CONTENTS Terminology . . . . . . . . . . . . . . . . . . . . . . . . . .3 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5 Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Quick-Start Demo . . . . . . . . . . . . . . . . . . . . .7-8 Basic Operation . . . . . . . . . . . . . . . . . . . . .9-12 All Metal . . . . . . . . . . . . . . . . . . . . . . . . .10 Discrimination . . . . . . . . . . . . . . . . . . . . .10 Notch . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Zap . . . . . . . . . . . . . . . . . . . . . . . . . .11-12 Pinpoint . . . . . . . . . . . . . . . . . . . . . . . . .12 Audio Target Identification . . . . . . . . . . . . . .13 Target and Depth Display . . . . . . . . . . . . .14-15 Sensitivity Adjustment . . . . . . . . . . . . . . . . . .16 In The Field Techniques . . . . . . . . . . . . . .17-22 Ground Balancing . . . . . . . . . . . . . . . . . . . . .20 Trouble Shooting . . . . . . . . . . . . . . . . . . . . . .23 Treasure Hunter’s Code of Ethics . . .Back Cover Warranty . . . . . . . . . . . . . . . . . . . . .Back Cover TERMINOLOGY The following terms are used throughout the manual, and are standard terminology among detectorists. ELIMINATION -Reference to a metal being "eliminated" means that the detector will not emit a tone, nor light up an indicator, when a specified object passes through the coil’s detection field. DISCRIMINATION - When the detector emits different tones for different types of metals, and when the detector "eliminates" certain metals, we refer to this as the detector "discriminating" among different types of metals. Discrimination is an important feature of professional metal detectors. Discrimination allows the user to ignore trash and otherwise undesirable objects. NOTCH - Notching is the elimination of an item, or range of items, within the metallic spectrum. We “notch-out” an object, or objects, selectively. Objects to the left and right on the metallic spectrum can be retained using the notch technique. RELIC - A relic is an object of interest by reason of its age or its association with the past. Many relics are made of iron, but can also be made of bronze or precious metals. IRON - Iron is a common, low-grade metal that is an undesirable target in certain metal detecting applications. Examples of undesirable iron objects are old cans, pipes, bolts, and nails. Sometimes, the desired target is made of iron. Property markers, for instance, contain iron. Valuable relics can also be composed of iron; cannon balls, old armaments, and parts of old structures and vehicles can also be composed of iron. FERROUS - Metals which are made of, or contain, iron. PINPOINTING - Pinpointing is the process of finding the exact location of a buried object. Long-buried metals can appear exactly like the surrounding soil, and can therefore be very hard to isolate from the soil. PULL-TABS -Discarded pull-tabs from beverage containers are the most bothersome trash items for treasure hunters. They come in many different shapes and sizes. Pull-tabs can be eliminated from detection, but some other valuable objects can have a magnetic signature similar to pull-tabs, and will also be eliminated when discriminating out pull-tabs. GROUND BALANCE - Ground Balancing is the ability of the detector to ignore, or "see through," the ...