Bose BOSESA3 Stereo Amplifier User Manual
Contents
1. METAL DETECTOR WITH SUPER SCAN The Discovery 3300 is a professional metal detector While the most difficult aspects of metal detecting have been automated it is af sophisticated electronic device which 1 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 tum 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 ABLE Or LUN Terminology 0000e cence eeeaee 3 Assembly 0 000 eee eee 4 5 Batteries 0 00 aaa 6 Quick Start Demo2. 7 8 Basic Operation ccc ee eee ees 9 12 All Metal 0 cece 10 Discrimination 0 00 cee e eee 10 NOUN Gecasendeeatewidawenn tages 11 Pi giahivenewe teeta cone ceeds 11 12 Pinpoint 2 ees 12 Audio Target Identification 13 Target and Depth Display 14 15 Sensitivity Adjustment 16 In The Field Techniques 17 22 Ground Balancing 00s eee e eee 20 Trouble Shooting 23 Treasure Hunter s Code of Ethics Back Cover Warranty 0000 cease Back Cover A VUNOLU The following terms are used throughout the manual and are standard terminology among detectonists 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 c
3. 2 Begin with the ground balance KNOB in the PRESET position 4 4 Press the PINPOINT touch pad 20 5 Lower the search coil to the N LE ground maintaining it elevated about 1 2 inch above the surface be sure that this ground does not contain metal e If the detector emits sound with the search coil 1 2 inch over the ground further ADJUSTMENT IS NECESSARY e If the detector remains silent with the searchcoil 1 2 inch over the ground no further adjustment is necessary the detector is GROUND BALANCED If the detector emits sound with the coil over the ground in STEP 5 further adjustment of the ground balance KNOB is required as follows e Lift the search coil waist high e Rotate the ground balance KNOB clockwise 1 16 of a tum e Press PINPOINT e Lower the search coil to the ground again If the detector still emits a tone repeat this procedure You are searching for the ground balance knob position where the detector is Just silent It is important to move the knob in small increments in order to find the first setting moving clockwise at which the detector remains silent To insure yourself of the optimal adjustment move the KNOB Slightly counterclockwise from a silent adjusted position to check for the most counterclockwise silent position possible If the KNOB is over adjusted in the clockwise direction the detector can lose sensitivity An over adjusted condition can also cause the de
4. Technical Note The NOTCH touch pad causes the status of an R segment to toggle between ON and OFF To use the NOTCH Mode The NOTCH touch pad can be depressed at any time But for first time use place the detector in ALL METAL mode A first demonstration is best accomplished as follows 1 Turn the power OFF 2 Turn the power ON 3 Press NOTCH A flashing R will appear under the IRON 1 segment 4 Press the DISCRIMINATION A touch pad several times Notice that the R moves upon each press of the DISCRIMINATION A touch pad 5 Press NOTCH again The flashing R will become permanently illuminated If an object has been notched out you can retum it to detection Status To un notch a category 1 Press NOTCH 2 Move the flashing R over the permanently illuminated R using the DISCRIMINATION A or W touch pads 3 Press NOTCH again ZAP The ZAP control is a convenient way to eliminate a known undesirable metal object from detection To demonstrate the ZAP control 1 Set the detector in All Metal Mode Note ZAP functions in all motion modes butis best demonstrated first from the All Metal Mode 2 Pass the search coil over an undesirable object i BASIC OPERATION continued 3 Notice the Target Indication Note You can only ZAP objects that register under the seven leftmost segments from Iron to Zinc 4 Press ZAP An R appears under the segment to be eliminated 5 Pass the
5. SB W N Re Limited Ninety Day Warranty This product is warranted by Radio Shack against manufacturing defects in material and workmanship under normal use for ninety 90 days from the date of purchase from Radio Shack company owned stores and authorized Radio Shack franchisees and dealers EXCEPT AS PROVIDED HEREIN Radio Shack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN EXCEPT AS PROVIDED HEREIN Radio Shack SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY INCLUDING BUT NOT LIMITED TO ANY DAMAGES RESULTING FROM INCONVENIENCE LOSS OF TIME DATA PROPERTY REVENUE OR PROFIT OR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF Radio Shack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAM AGES Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you In the event of a product defect during the warranty period take the product and the Radio Shack sales receipt as proof of purchase date to any Radio Shack store Radio Shack
6. a given category for an unknown buned objed you could be deteding a metallic object other than the object desaibed on the label but with the same metallic signature Also the greater the distance between the target and the coll the less accurate the target identification GOLD TARGETS Gold objects will register on the left side of the LCD scale Gold will register depending upon its size The smaller the gold object the further to the left it will register Gold flakes will register under Iron 1 Small gold items will register under Iron or 5 PT Medium sized gold items will register under PT or S cap Large gold items will register under S cap or Zinc SILVER TARGETS Silver objects will register to the right of the scale under 25 50 or 1 depending on the size of the object The larger the object the farther to the night it will register ING IRON Ferrous objects will register on the far left side of the target identification scale 1 2 or 3 indicates the relative size of iron objects Small nails for instance will Usually illuminate the Iron 1 arrow whereas large structural ferrous objects will usually illuminate the Iron 3 arrow 14 Objects in this category could be worthless scrap or a more valuable iron relic 5c PT Nickels and most newer pull tabs those that stay attached to the can will register here PT pull tabs Pull tabs from older beverage cans will register here Few newer pull ta
7. constant tone if so retune If you move from a warmer to cooler environment the detector may lose sensitivity if so retune PINPOINTING Detection Field The detection field depends on the size of the target Large Objects v After detecting a target lift the coil off the ground to a distance where you hear the faintest tone Move the coil over the ground at this height If the tone does not fade you have detected a large or irregulary shaped object Outline the object with slow coil movements If you can outline an area larger than the size of the inside coil you then have a large target or several targets Large objects can be detected when they enter the range of the outside coil Small Objects After detecting a target hold the search coil above the ground at a distance where you hear the faintest vo tone While maintaining the coil at this height above J the ground move the coil from side to side Note ga the spot where the tone is loudest Then move the coil toward the ground to zero in on the target s location A coin size object will be detected when the object enters the range of the inner coil TROUBLE SHOOTING GUIDE Detector chatters e Using detector e Use detector or beeps erratically indoors outdoors only e Using detector near Move away power lines from power lines e Using 2 detectors in Keep 2 detectors close proximity at least 20 apart e Highly oxidized e Only dig up buned obje
8. rights reserved including the right to reproduce this book or parts thereof in any form Published by First Texas Products L P Bounty Hunter is a registered trademark of First Texas Products L P www detecting com EN BOUNTY HUNTER Soi METAL DETECTORS First Texas Products LP 1100 Pendale Road El Paso TX 79907 915 633 8354
9. 2200 motionless the unit is probably detecting another electromagnetic field Common sources of EMI are electric power lines both suspended and buried motors and household appliances like computers and microwave ovens Some indoor electronic devices such as dimmer Switches used on household lighting produce severe EMI and can cause the detector to beep erratically Other metal detectors also produce their own electromagnetic fields so if detecting with a friend keep two metal detectors at least 20 feet apart If the detector beeps erratically REDUCE THE SENSITIVITY by pressing the Sensitivity V Pad on the left of the control panel SEVERE GROUND CONDITIONS A secondary use for the Sensitivity Control is to reduce false detection signals caused by severe ground conditions While your Discovery 3300 contains circuitry to eliminate the signals caused by most naturally occurring ground minerals 100 of all ground conditions cannot be anticipated Highly magnetic soils found in mountainous and gold prospecting locations can cause the detector to emit tones when metal objects are not present High saline content soils and sands can sometimes cause the detector to false If the detector emits false non repeatable signals REDUCE THE SENSITIVITY MULTIPLE TARGETS If you suspect the presence of deeper targets beneath a shallower target reduce the sensitivity to eliminate the detection of the deeper targets in order to properly loca
10. Low Tone Pull Tab Medium Tone Zinc Penny High Tone Quarter b Motion is required Objectsfus must be in motion over the search coil to be detected V Press the DISC A M touch pad and 3 R s will appear under the iron indicators Quick Start Demo continued on next page A JUICK JEM UN VI Wave the Nail over the Search Coil a The Nail will not be detected b The Nail has been Disciminated Out KA LUN CONTINUE VII Press the DISCRIMINATION A touch pad twice A Five R s are now displayed DISCRIMINATION VIII Wave all objects over the Search Coil The Nail and Pull Tab will not be detected The other objects will be detected with their own distinctive tones IX Press the NOTCH touch pad A flashing R will appear under the 5 PT segment X Press the DISCRIMINATION A touch pad three times The flashing R will move to the ZINC segment XI Press the NOTCH touch pad again The R will appear under zinc XII Wave the zinc penny over the search coil The penny is discriminated out XIII Press the DISC A M touch pad The detector returns to ALL METAL mode No R s are displayed All types of metals will be detected XIV Wave the pull tab over the coil XV Press the ZAP touch pad An R will appear XVI Wave the pull tab over the search coil again The pull tab the most recently detected item is eliminated from dete
11. an 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 earth s naturally occurring minerals and only sound a tone when a metal object is detected The Discov
12. ancing instructions Also consult page 22 for proper no motion field techniques The Target Identification and Target Depth indicators are disabled in this mode To discem the identification and depth of an object you must use one of the motion modes of operation Using headphones not supplied with your metal detector makes it easier to identify subtle changes in the threshold levels for better detection results and also reduces drain on the batteries The Discovery 3300 Metal Detector has a stereo headphone jack located at the rear of the case Audio Connector While the LCD Liquid Crystal Display is very accurate in identifying buried objects the user in the field does not always maintain the display screen in his field of vision Therefore we have incorporated an audio feedback mechanism to alert the user to the nature of buried objects This audio feedback system first alerts the user to the presence and classificaton of objects whose nature and location can be confirmed using the LCD display The 4 tone audio target identification system functions only in the motion modes of operation The detector must be in the DISCRIMINATION NOTCH or ALL METAL modes as indicated on the display In PINPOINT mode the detector will emit only a monotone sound The detector can sound four different tones depending on the object detected BASS TONE Ferrous objects such as iron and steel will induce a bass tone The smallest
13. bs will also register here Many gold rings will also register here S CAP Older screw caps from glass bottles will register here Large gold rings like a class ring could also register here Some non U S coins of recent vintage will also register here ZINC Newer pennies post 1982 will register here Many non U S coins of recent vintage will also register here Cul0 Dimes and pre 1982 pennies will register here Older pre 1982 pennies are composed of copper which has a metallic signature similar to a dime Most copper coins will register here Caution The target indications are visual references Many other types of metal can fall under any one of these Categories While the Discovery 3300 will eliminate or indicate the presence of most common trash items it is impossible to accurately dassify ALL buned objects DEPTH INDICATOR The Depth Indicator is accurate for coin sized objects It indicates the depth of the target in inches Large and irregularly shaped objects will yield less reliable depth readings When passing over an object the depth indicator will light up and stay illuminated until another object is scanned Repeated indication at the same depth level indicates an accurate target detector If the depth indication vanes with each sweep try sweeping at different angles there may be more than one target present With practice you will leam the difference between accurate readings multiple targe
14. ct repeatable Signals e Environmental e Reduce sensitivity electromagnetic until erratic interference Signals cease Constant low tone e Discharged batteries Replace batteries or constant repeating tones e Wrong type of e Use only 9V batteries alkaline batteries LCD does not lock Multiple targets e Move coil slowly on to one target ID present at different angles or detector emits Highly oxidized multiple tones target e Sensitivity set e Reduce sensitivity too high No power no e Dead batteries e Replace batteries sounds e Poor battery e Push batteries in contact tighter e Cord npt connected Insert paper spacers securely See page 6 e Check connections Detector sounds e Ground Balance e Move Ground continuous tone in over adjusted Balance knob Pinpoint Mode when counte clockwise coil is lifted away from ground Detector sounds con Detector needs to be Press Pinpoint tinuous tone with retuned e Re ground balance coil over ground TREASURE HUNTER S CODE OF ETHICS Respect the nghts and property of others Observe all laws whether national state or local Never destroy historical or archaeological treasures Leave the land and vegetation as it was Fill in the holes All treasure hunters may be judged by the example you set Always obtain permission before searching any site Be extremely careful while probing picking up or discarding trash items And ALWAYS COVER YOUR HOLES UI
15. ction XVII Press the PINPOINT touch pad Hold one of the metal objects motionless over the search coil e All Metal objects are now detected e Depth and Target indicator do not illuminate in this mode e One monotone sound indicates the presence of any type of metal BASIC OPERATION POWERING UP Press the POWER eee ees touch pad e The detector will A beep 4 times SENsmriviTy e All display segments will illuminate momentarily e The SENSITIVITY and BATTERY indicators will Stay illuminated MOTION and NO MOTION MODES Depending on the operation mode selected the Discovery 3300 detects metal both with the coil in motion or with the coil motionless In the PINPOINT mode of operation metal is detected with the coil motionless over the ground This no motion operation helps to locate the exact location of buried objects and is very useful in understanding the size and shape of buried metal objects The PINPOINT mode offers deeper ground penetration but cannot classify targets nor indicate their depth The other operating modes require the coil to be in motion to detect a target When in the DISCRIMINATION ALL METAL or NOTCH modes the coil must be in continuous motion It is often useful to search for targets in a motion mode and when identified pinpoint their location with the PINPOINT control SENSITIVITY At its default sensitivity setting the detector will detect a coin sized object such as a quarter buried appr
16. eep may provide a more consistent target identification Most worthwhile objects will respond with a repeatable tone If the signal does not repeat after sweeping the coil directly over the suspected target a few times it is more than likely trash metal Crossing the target zone with multiple intersecting sweeps at multiple angles is another way to verify the repeatability of the Signal and the potential of the buried target To use this method walk around the target area in a circle sweeping the coil across the target repeatedly every 30 to 40 degrees of the circle about ten different angles as you walk completely around the target If a high tone target completely disappears from detection at a given angle chances are that you are detecting oxidized ferrous metals rather than a silver or copper object If the tone changes at different A A A A IN A INO IN IA IN NN LN NG N WIN J 7 SWEEP l V SIGNAL WHAT MAY READS T ACTUALLY N LIKE THIS BE THIS 18 N LE angles you may have encountered multiple objects If you are new to the hobby you may want to dig all targets at first With practice in the field you will learn to better discern the nature of bured objects by the nature of the detector s response You may encounter some false signals as you proceed False signals occur when the detector beeps but no metal target is present False signals can be induced by elect
17. ery 3300 incorporates proprietary Super Scan circuitry to eliminate false signals from severe ground conditions AS SEM Assembly is easy and requires no tools Silver Button Position the lower stem the straight tube with the silver button toward the back Using the bolt and knurled knob attach the search coll to the idea plastic extension ponies Po bi from the lower stem E gt Cable Press the button on the upper end of the lower stem and slide the lower stem into the upper stem Adjust the stem to a lengh xi that lets you maintain a comfortable upright posture with your arm relaxed at your side and the search coil parallel to 7 the ground in front of you plc ion Wind the cable securely around the stem Insert the plug into the matching connector on the right underside of the N Detector detector body Be sure Body that the key way and pins line up correctly Caution Do not force the j j plugin Ex ssfore j Connector will cause damage To disconnect the cable pull on the plug Do not pull on the cable Plug AS SEM Adjusting the Arm Rest Most people will find the standard position of the arm rest very comfortable Very large forearms and short forearms particularly children s arms can be accommodated by moving the arm rest forward The am rest is adjustable to three positions To adjust remove the screw from the u
18. gold objects can also induce a bass tone LOW TONE Pull Tabs nickels amp smaller gold MEDIUM TONE Newer pennies post 1982 larger gold objects zinc small brass objects and most bottle screw caps will induce medium tones Many recent vintage foreign currencies will induce medium tones HIGH TONE Silver and copper coins larger brass objects older pennies pre 1982 and highly oxidized metals will induce high tones Quarters dimes and other precious coins fall into this category BASS TONE LOW TONE Copper Silver Post 1982 Larger Gold Objects Many screw caps Pull Tabs Nickels amp Smaller Gold amp Brass Copper Pennies Pre 1982 Nails Iron Objects amp Smallest Gold Objects Audio Target Identification ATI classifies metals into four categories 13 READING THE DISPLAY The Liquid Crystal Display LCD shows the PROBABLE identification of the targeted metal as well as the PROBABLE depth of the target in inches The detector will register a unchanging ta identification when a buried target has been located and identified If upon repeated passes over the same spot the target identification reads ro the target is probably a trash item or oxidized metal With practice yo u will leam to unearth only the repeatable signals The segment identifications are highly accurate when detecting the objects desaibed on the label However if you register in
19. nderside then press the silver button and move the arm rest to one of the alternate positions If you cannot fully depress the button with your finger use a narrow object such as the blunt end of a ballpoint pen The arm rest must be twisted with moderate force to move it to an alternate position this adjustment is usually made infrequently If desired for added stability re install the screw The screw Is not re installed in the furthest forward position If the button becomes disengaged inside of the tube remove the plastic cap at the end of the tube to access the clip inside With a pair of needle nose pliers reengage the button Then replace the plastic cap Arm Rest Wi z Ng lt CAT F p Button VA N Lower Search Stem Coil Cable 4 7 A Knurled Knob D D Use ALKALINE batteries only To install the batteries Remove the battery cover by disengaging the clip at the back Align the polarity of the batteries correctly with the positive toward the coil plug connection as indicated by the and indicators on the housing Insert 2 9 Volt ALKALINE batteries with the contacts pointed inward and press down on the back of the batteries to snap them into place BATTERY COMPARTMENT COVER Some brands of batteries will require moderate force to clear the retaining tabs IN CASE OF LOOSE BATTERIES If the batteries fi
20. oximately seven inches deep To change the sensitivity level and thus the detection depth press the SENSITIVITY A or V keys The 6 segment scale at the left of the display above coin depth indicates the sensitivity level when these touch pads are depressed CAUTION A DISCRIMINATION FULL y D At higher sensitivity levels the detector is susceptible to electromagnetic interference from electronic devices Reduce sensitivity if demonstrating indoors or if using near power lines or electrical equipment Reduce sensitivity if detector emits false signals BASIC OPERATION continued ALL METAL MODE Default Oper ation The detector defaults to ALL METAL mode after powering on In this mode all types of metals will be detected An object s PROBABLE identification is indicated by the arrows at the top of the display In addition the PROBABLE depth of coin sized objects is indicated by the rectangular segment indicators on the left side of the display All detected objects will cause the depth indicator to illuminate The depth indication is not accurate for larger objects however it will provide accurate relative depth indications The greater the distance an object is from the search coil the greater its depth value DISC A M Touch Pad Pressing this touch pad will cause the detector to toggle between two operating modes DISCRIMINATION and ALL METAL If the detector is in the ALL METAL mode the default mode
21. pressing the touch pad will change the detector into DISCRIMINATION mode If the detector is in the DISCRIMINATION mode pressing the touch pad will change the detector into ALL METAL mode DISCRIMINATION MODE Discnmination is used to eliminate unwanted objects from detection To enter this mode from ALL METAL mode press the DISC A M touch pad After pressing DISC A M the detector will e Beep twice e Display 3 R s under the leftmost segments Iron 1 2 amp 3 Ferrous objects will not be detected in DISCRIMINATION mode Heavily oxidized ferrous objects will sometimes however be detected usually with a high tone and an indication to the right of the target identification scale To increase the level of discrimination press the DISCRIMINATION A touch pad Each time the A pad is depressed an additional R will appear thus eliminating from detection the objects which fall into the corresponding categories To decrease the level of discrimination press the DISCRIMINATION Y touch pad Each time the V pad is depressed an illuminated R will 10 BASIC OPERATION continued l disappear thus returning to detection the objects which fall into the corresponding categories Discrimination Mode is a fixed start point elimination system Objects are cumulatively eliminated as the level of discnmination increases NOTCH MODE To selectively eliminate a category from detection within the metallic spectrum use the NOTCH Mode
22. romagnetic interference oxidation or highly mineralized ground soils If the detector beeps once but does not repeat the signal with several additional Sweeps over the same spot there is probably no target present When searching very trashing ground it is best to scan small areas with slow short sweeps ANIC motion modes You will be surprised just how much trash metal and foil you will find in some areas The trashiest areas have been frequented by the most people and frequently hold the most promise for finding the most lost valuables To make searching easier in very trashy areas consider purchasing a 4 inch Search Coil Radio Shack item 63 3009 or 63 3014 The 4 inch coil s narrower detection field can better distinguish between two objects in close proximity Also maintain the search coil positioned just above the surface of the ground without making contact with the ground Making contact with the ground can cause false signals 19 NE GROUND BALANCING Before using the PINPOINT mode it is necessary to Ground Balance your detector this ground balanang adjustment offsets the effects of minerals and salts in the ground To GROUND BALANCE your detector 1 Using the ALL METAL mode find a patch of ground which is free of metal objects You will use this section of ground to test the detector The presence of any metal objects in this area will interfere with this procedure
23. search coil over the same object again The undesirable object is eliminated from detection The ZAP control is easy to use in the field As you are detecting and encounter an wei which you wish to eliminate from detection simply press the ZAP touch pad after detecting the object The ZAP control eliminates the most recently detected object category from detection The category eliminated is indicated with an R PIN POINT MODE HEADPHONE ACK 12 Since long buried objects can appear Ha like the surrounding soil the process of finding the exact location of a small object such as a coin can be time consuming and frustrating Objects buried many inches deep present an especially SG ASAP challenge In addition during the unearthing process care must be taken not to damage valuable relics The best solution to these problems is the no motion PINPOINT mode At any time during operation press the PINPOINT touch pad and the detector enters the no motion mode In the PINPOINT mode any object in the coil s detection field will induce a monotone hum The location of a coin sized object can be discemed with pinpoint accuracy as it will induce a tone only when it falls within the inner circle of the search coil Pass the coil Seid over and around the target Zone and you will quickly see the target s exact location Be sure that the detector is properly GROUND BALANCED before using the PINPOINT MODE See page 20 for manual ground bal
24. t loosely and you want to Quarantee a very secure electrical contact insert a piece of paper or thin cardboard between the back of the battery and the Supporting post Replace the battery door Most metal detector problems are due to improperly installed batteries or the use of non alkaline or discharged batteries If the detector does not turn on please check the batteries If the detector does not turn on check to see that the batteries fit tightly If the batteries are loose press them forward while pressing the POWER touch pad To tighten up a loose battery wedge a piece of paper or thin cardboard between the back of the battery and the supporting post as illustrated above 6 Supplies Needed e A Nail e A Quarter e A Pull Tab from a beverage can A Zinc Penny dated after 1982 Il Position the Detector a Place the detector on a table with the search coil hanging over the edge or better have a friend hold the detector with the coil off the ground b Keep the search coll away from walls floors and metal objects c Remove watches rings and other jewelry or metal objects from hands and wrists d Turn off appliances or lights that cause electromagnetic Interference idi e Pivot the search coil back nA META toward the detector body sga Ill Power Up Press the POWER touch pad IV Wave each Object over the Search Coil a Notice a different tone for each object Bass Tone Nail
25. te and identify the shallower target 16 NE PINPOINTING Accurate pinpointing takes practice and is best accomplished by X ing the target area 1 When pinpointing a target try drawing an X Once a buried target is indicated by a good tone response continue sweeping the coil over the target in a narowing side to side pattem Take visual note of the place on the ground where the beep sounds Stop the coil directly over this spot on the ground Now move the coil straight forward and straight back towards you a couple of times Again make visual note of the spot on the ground at which the beep sounds If needed X the target at different angles to zero in on the exact spot on the ground at which the beep sounds as illustrated over where the tone is induced motion modes 0 COIL MOVEMENT When swinging the coil be careful to keep it level with the ground about 1 2 inch from the surface Never swing the coil like a pendulum Swing the search coil slowly overlapping each sweep as you move forward It is important to sweep the coil at a consistent speed over the ground as you search After identifying a target your sweep technique can help in identifying both the location and the nature of the target If you encounter a weak signal try moving the coil in Short rapid sweeps over the target zone such a short rapid Sw
26. tector to sound off when the coil is lifted away from the ground As your search takes you to different areas venfy the ground balance setting penodically using the above procedure Within a geographical area ground conditions can change Varying elevations proximity to water and concentrations of rock sand or clay can all affect ground condition and sometimes require recalibration with the ground balance knob e If the detector remains silent with the search coil 1 2 inch over the ground no further adjustment is necessary the detector is GROUND BALANCED 21 In the Pinpoint Mode coil sweep technique is not important Rather user retuning is critical The detector does not automatically adjust to changing ground and environmental conditions the operator is required to make the adjustment If the detector sounds a constant tone over all areas of the ground retune the detector by pressing the PINPOINT button RETUNING Keep the coil still just above the ground surface and press the PINPOINT button Make sure that the spot on the ground you chose for tuning did not contain metal pass over the area with the coil again to insure that the detector does not emit a tone TEM PERATURE CHANGE If the detector moves from one temperature environment to another or if the temperature changes you must retune the detector until the temperature Stabilizes If you move from a cooler to a warmer environment the detector may emit a
27. ts and highly erratic readings which evidence trash or irregularly shaped objects THREE DIGIT TARGET INDICATOR The three digit target indicator in the middle of the LCD display provides a specific target value to help identify buried targets more accurately With practice in the field you will leam to assodate target values with the probable identification of buned objects The target value can vary each time the coil passes over the target depending upon the angle of the object and the distance from the coil As a Starting point refer to the table below TARGET Readout The table below list some common approximate target value equivalents With experience in the filed you will recognize many types of metals by their numeric value VALUE RANGE 0 10 30 39 43 48 53 60 62 74 83 88 86 100 107 127 105 120 120 126 134 150 150 199 Iron Nickel Pull Tab Dime Quarter Screw Cap POSSIBLE OBJECTS Zinc Penny Wheat Cent Liberty Dollar Franklin Half Dollar Silver Dollar Large metal Object 15 AND ELECTROMAGNETIC INTERFERENCE sot Hn oo TS The principle use for the Sensitivity Control is to eliminate Electromagnetic Interference EMI A hobby metal detector is an of i SENSITIVITY extremely sensitive device oon fF N O the search coil creates its prang own magnetic field and acts y like an antenna If your detector beeps erratically DEPTH when the search coil is Dinaanan
28. will at its option unless otherwise provided by law a correct the detect by product repair without charge for parts and labor b replace the product with one of the same or similar design or c refund the purchase price All replaced parts and products and products on which a refund is made become the property of Radio Shack New or reconditioned parts and products may be used in the performance of warranty service Repaired or replaced parts and products are warranted for the remainder of the original warranty period You will be charged for repair or replacement of the product made after the expiration of the warranty period This warranty does not cover a damage or failure caused by or attributable to acts of God abuse accident misuse improper or abnormal usage failure to follow instructions improper installation or maintenance alteration lighting or other incidence of excess voltage or current b any repairs other than those provided by a Radio Shack Authorized Service Facility c consumables such as fuses or batteries d cosmetic damage e transportation shipping or insurance costs or f costs of product removal installation set up service adjustment or reinstallation This warranty gives you specific legal rights and you may also have other rights which vary from state to state Radio Shack Customer Relations 200 Taylor Street 6th Floor Fort Worth TX 76102 Copyright 2002 by First Texas Products L P All
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