Garrett Metal Detectors Sea Hunter Mark II None User's Manual
Contents
1. from the detector immediately after each use 2 Avoid high internal temperatures by protecting the equipment from the sun Store equipment in a cool location avoid storage in a hot vehicle 3 Take advantage of Garrett s preventative maintenance program For a small fee the factory will inspect the entire detector replace its seals and pressure test it Contact the factory for more details 27 28 BATTERY REPLACEMENT Figure 8 Proper battery pack re installation To access the battery pack unscrew the battery cap at the rear of the detector housing by hand Do not use tools The o ring should remain in the control housing while the battery pack slides out When installing batteries ensure that they are aligned with the correct polarity plus and minus markings Re install the battery pack by placing the contact end of the housing inside first and pointing downward figure 8 Verify that the o ring is well lubricated and free from debris Add a little silicon grease or petroleum jelly if necessary Reinstall the battery cap hand tighten it until it is flush with the housing and the two index marks are aligned as shown Figure 9 Figure 9 Proper battery cap re installation 29 30 RECOMMENDED ACCESSORIES Using the right recovery tools is as essential to treasure hunting as the detector itself Here are a few examples of recovery tools and their uses Figure 10 A hand scoop is useful for dry sa2. right tool for the job and you ll recover treasure in no time Knowing what you re digging for and the kind of surface you re digging into will help you choose the right digging tool Double check your holes After you dig a target re scan the hole to make sure you retrieved everything in and around it corroded and coral encrusted desirable items can be easily mistaken for undesirable ones Law enforcement and industry Law enforcement agencies often depend on metal detectors to help their investigative teams recover stolen lost or discarded property particularly material evidence such as vehicles weapons and stolen goods Construction forestry and lumber and landscaping are just a few industries that use metal detectors to purge areas or materials of unwanted or hazardous metal items Metal detectors have been used to find a variety of hidden items such as pipes scrap metal nails embedded in lumber underground electrical power cables and oil barrels Select zero discrimination When used for the purposes of law enforcement or industry the Sea Hunter Mark II or any metal detector for that matter usually requires little or no discrimination Underwater searches The Sea Hunter Mark II can locate both ferrous and non ferrous metals concealed within and below aquatic growth from bottom soil and rocks wood and other non metallic materials Large items such as boats motors and safes can be located several fee
3. State Street Garland Texas 75042 Order form continued on back of this page MAIL IN ORDER FORM Add 2 00 for first book and 1 00 for each additional book ordered for handling and shipping charges Total for books 8 25 Tax TX CA residents Handling Charge TOTAL Payment Options ____ Enclosed check or money order ____ I prefer to order through ___ American Express ___ MasterCard Visa _ Discover Card Number Expiration Date of Card Phone Number Signature Required on credit card purchases Name Address City State Zip 40 PATENT PROTECTION Garrett s high tech instruments are protected by one or more of the following United States Patents and other Patents Pending 4 398 104 4 423 377 4 303 879 4 334 191 3 662 225 4 162 969 4 334 192 4 488 115 4 700 139 4 709 213 Design 274 704 and 297 221 G B Design 2 011 852 Australia Design 111 674 Other patents pending All Garrett detectors are manufactured in the United States of America 2008 Garrett Metal Detectors All rights reserved 41 GARRETT METAL DETECTORS www garrett com 1881 W State Street Garland Texas 75042 Toll Free 1 800 527 4011 Tel 972 494 6151 Fax 972 494 1881 Email sales garrett com 2008 Garrett Electronics Inc PN 1525400 D 0408
4. number of undesirable items are excluded from detection Figure 1 SEARCH MODES Standard Trash Elimination and Discrete Trash Elimination are the search modes available with the Sea Hunter Mark II The selector switch for these modes is located on the right side of the panel Standard Trash Elimination is the search mode normally available on conventional pulse induction Pl metal detectors The background audio threshold is continuous and remains close to the operator s chosen level while responding to ongoing variations in the detection signal Small or deep targets produce faint weak signals and large or shallow targets produce loud strong signals The elimination knob is used to change the detector s ability to detect various types of metal As you rotate the elimination knob clockwise the detection response to metals decreases The detection response to poor conductors such as foil nickel and pull tabs decreases significantly more than the response to good conductors such as coins and fine jewelry In Standard mode the response to poor conductors can be eliminated effectively however if these objects are too close to the searchcoil a detection response may occur The response to good conductors although somewhat diminished remains relatively strong Some jewelry such as rings and thin gold necklaces are found in the middle of the conductivity range so it s important to dial in only the amount of elimination n
5. the sea is to do your homework Learn as much as you can about the areas you want to search the kind of treasure you want to find and the best ways to recover it The better prepared you are the greater your chances for success The following books by Charles Garrett available from Garrett Metal Detectors or your local Authorized Garrett Dealer offer invaluable research advice and detailed information on search and recovery techniques for hobbyists How to Search Sand and Surf Treasure Hunting for Fun and Profit and New Successful Coin Hunting Search popular gathering places Survey the beach to determine areas with lots of people activity A wealth of treasure including lost coins and jewelry often lies hidden beneath the sand Other areas that can yield treasure include footpaths scenic spots picnic or camp sites concession stands dressing cabins water fountains boat docks boardwalks sea 20 wall bases bridges channel dredging sites and sunken vessels Study surf and weather patterns Pay attention to storm wind and tide activity Treasures from deepwater vaults are often transferred to shallower locations like tidal pools and water filled depressions near the shoreline A beach considered unproductive can suddenly yield riches Heavy storm waves often unearth treasures like rings caught in exposed rock and gravel areas Figure 7 Figure 7 Surf Pattern 21 22 Use the right recovery tools Use the
6. GARRETT Owner s METAL DETECTORS Manual TABLE OF CONTENTS To the Owner Control Functions Search Modes Assembly Operating Procedure Field Recommendations Search and Recovery Tips Cautions Maintenance Battery Replacement Recommended Accessories Specifications Repair Service Warning Recommended Reading Mind Your Manners RAM Book Order Form 13 17 18 20 25 27 28 30 32 34 35 37 39 TO THE OWNER The Garrett Sea Hunter Mark II has an unparalleled reputation among treasure hunters law enforcement agencies and various industries as one of the most reliable and sophisticated submersible metal detectors of its kind The Sea Hunter Mark II is an advanced microprocessor driven instrument that is lightweight highly durable and easy to use The Sea Hunters pulse induction PI circuitry provides excellent depth and enables you to find treasure without interference from salt water and most ground minerals OUTSTANDING FEATURES The Sea Hunter s outstanding performance custom designed housing and multiple configurations make it superior to other underwater detectors available Microprocessor based circuitry in the Sea Hunter provides greater sensitivity faster target response and comes with Garrett s exclusive Discrete Target Elimination mode The custom designed double o ring sealed housing is durable and lightweight with individual o ring sealed battery and electronics compartments that mak
7. appears to achieve less detection depth in air tests its ability to eliminate undesirable items precisely without affecting desirable items enable it to outperform Standard mode in certain situations For example when the elimination control is set to exclude pull tabs it excludes pull tabs with little or no effect on the detection response to most thin gold rings Figure 2 To pinpoint in Discrete mode you simply sweep the searchcoil from to side to side over a target The searchcoil must remain in motion to produce a detection response This mode is designed to provide superior pulse induction target discrimination and is extremely effective in areas with lots of trash ASSEMBLY 1 Choose a desired operating stem control housing configuration Assemble the stem and attach the control housing as desired Figure 3 4 5 Figure 3 ScubaMate Figure 4 Full length with undercuff Figure 5 Long stem with hip mount configurations 14 offo e Figure 6 Parts needed to assemble stem and searchcoil 2 Attach the searchcoil to the lower stem Align the mounting holes of the searchcoil and stem insert the threaded bolt through the holes and hand tighten the knobs Do Not use tools Figure 6 3 Wrap the cable around the stem and secure it according to your operating configuration For a hip mount configuration use the adjustable strap to secure the cable to the upper stem 4 Ensure the searchcoi
8. eeded for the search area Standard mode permits a very slow searchcoil sweep making it particularly effective for pinpointing targets It provides the deepest possible detection and is most useful in areas with little trash Discrete Trash Elimination is a search mode exclusive to the Sea Hunter Mark ll It is similar in operation to detectors with a Motion Discrimination mode in that it provides more precise and enhanced 10 target discrimination The background audio threshold remains at the chosen level until the searchcoil passes over targets in the knob s accept range at which time a sharp audio response a characteristic of all motion detectors occurs Figure 2 shows the typical detection responses from various metals in both Discrete DIS and Standard Std Trash Elimination modes Note that in Std 0 Q pr pe a a pi c Puitat Thin Goid Thick Gok Target Material Figure 2 Standard Mode with elimination at 0 metals can be detected at 100 capability As the elimination control is increased in either search mode the response to various targets decreases Note that the response to many metals decreases more rapidly in Standard mode than in Discrete mode As with Standard mode the elimination knob is used to change the detector s ability to detect various types of metal poor conductors can be eliminated while only slightly reducing the detection of better conductors Although Discrete mode
9. es battery replacement hassle free An 8 epoxy filled searchcoil and custom designed headphones submersible to 200 feet make the Sea Hunter Mark II highly stable and reliable The Sea Hunter Mark II is very versatile offering four stem arrangements to suit your search needs the long stem with top stem mount under cuff stem mount hip mount and the short stem ScubaMate Each arrangement allows you the versatility to search on land in shallow water or underwater or in situations where a sealed detector is required The ScubaMate is ideal for diving while the long stem allows you to carry the control housing on your waist or shoulder or stem mounted is useful for searching on land or in shallow water CONTROL FUNCTIONS KG Sea ni 1 Mark II 8 SUNDA OD Treasure Diver ouimsnon fag 6 POWER i D Q Figure 1 Panel Face Power Use to turn the detector on and choose either of two search modes A battery check occurs automatically each time the power is switched on Figure 1 Threshold Use to set the base audio level according to an individual s hearing ability and how loud the outside noise is Typically the sound is set no louder than necessary just above silent is recommended Figure 1 Elimination Use in conjunction with either the Standard or Discrete Trash Elimination modes to choose the elimination level appropriate to your search needs As the elimination knob is rotated clockwise an increasing
10. l connector at the rear of the control housing is clean and the o ring is well lubricated add a little silicon grease or petroleum jelly if necessary Do not coat connector pins with lubricant Insert coil connector and gently hand tighten Do not over tighten 5 Repeat Step 4 when assembling the headphone connector at the front of the control housing 6 Perform a battery test by switching on the detector noting the number of beeps that occur Scan a metal object to confirm detection If the batteries are low or the detector fails to operate verify that the battery pack and batteries are aligned properly OPERATING PROCEDURE 1 Switch on the detector and note the results of the battery test represented by a range of one to four beeps Four beeps indicate the batteries are full one beep indicates they must be replaced 2 Select the Standard or Discrete Trash Elimination mode 3 Set the threshold knob to the desired audio level Typically the audio is set very low usually just above silent How low you set it depends on your hearing needs and how loud the background noise is 4 Set the elimination control to zero or a low level until you examine your search area and determine the kinds of metal items you want eliminated from detection Then re adjust it to a level that maximizes your search goals FIELD RECOMMENDATIONS Knowing the conditions of your search and which items you want or don t want to find will he
11. lp you choose the search mode and elimination setting which best suits your needs Depending on your search goals you may want to set the elimination no higher than necessary so that you can detect most metals You may even want to set the elimination at zero so there is no discrimination and all metals are detected Although you ll detect a lot of undesirable items like foil and pull tabs you won t miss any desirable ones Methodically sweep the searchcoil from side to side keeping it one or two inches above the surface Restrict your sweeping speed to about one to two feet per second Overlap each sweep by advancing the searchcoil by at least a quarter of its diameter one half is recommended Always scan in a straight line not a wide arc it helps keep the searchcoil level reduces the likelihood of lifting the searchcoil at the end of each sweep and ensures the overlap sweeps remain uniform Finally it is important to remember that any detection signal no matter how loud or faint represents the sound of metal and its source should always be determined As with all Pl detectors eliminating iron materials while in either mode is difficult if not impossible However attaching a magnet to the inside of your digging tool can help separate bits of iron and other debris from your treasure finds SEARCH amp RECOVERY TIPS Treasure Hunting Research The first rule of successful treasure hunting whether on land or in
12. nd and shallow water recovery up to two feet A trowel is best for recovering items in clay or gravel areas Figure 10 Various commercially available recovery tools Tip A strong magnet attached to the inside of a scoop will help separate bits of wire and other iron debris from your treasure finds SPECIFICATIONS e Circuit type Pulse Induction automatic cancellation of salt iron mineralization e Frequency 750 pulses per second e Submersion depth Up to 200 feet 65 meters or seven atmospheres Buoyancy Near neutral e Batteries Eight AA e Battery life Approximately 18 22 hours e Control housing weight 31 oz e Headphones 11 oz Sea Hunter Mark II with ScubaMate no headphones 64 oz e Sea Hunter Mark II with long stem no headphones 73 oz 31 32 REPAIR SERVICE If you have difficulty operating the Sea Hunter Mark Il take a few minutes to re read this manual and check the batteries switches and connectors If you are unfamiliar with underwater detectors consult your local Authorized Garrett Dealer or the Garrett factory If your Sea Hunter needs repair you should return it to the factory accompanied by a detailed letter describing the problem s Carefully pack the detector in its shipping carton or other sturdy box using packing material or appropriate insulation to protect the parts Do not include the stems or headphones unless they are part of the problem Return all coils unle
13. s and their use The latest edition of Treasure Hunting for Fun and Profit is written especially for beginner hobbyists Looking for interesting places to hunt Why not check out Charles Garrett s book Ghost Town Treasures or Bob Marx s Buried Treasures You Can Find a book describing countless sites where treasure is believed to exist 35 36 New Successful Coin Hunting You Can Find Gold with a Metal Detector and How To Search Sand and Surf are perfect books for readers who have specific hunting goals MIND YOUR MANNERS Filling holes and obeying NO TRESPASSING signs are just two of the responsibilities of a dedicated metal detector hobbyist The sincere request that Charles Garrett makes to everyone who uses his equipment is to leave each place they search in better condition than they found it Thousands of individuals and organizations have adopted this formal Code of Ethics for Metal Detector Operators e will respect private and public property all historical and archaeological sites and will not metal detect on these sites without proper permission e will keep informed and obey all laws regulations and rules governing federal state and local public land e will aid law enforcement officials whenever possible 37 e will not willfully cause damage to property including fences signs and buildings and will always fill the holes dig e I will not destroy property buildings or the remain
14. s of ghost towns and other deserted structures e will not leave litter or uncovered items lying around will carry all trash and discarded targets with me when leave each search area e will observe the Golden Rule using good outdoor manners and conducting myself at all times in a manner that will enhance the public image of everyone involved in the field of metal detection 38 RAM BOOKS ORDER FORM Please send me the following RAM books Please indicate number of copies desired _ New Successful Coin Hunting 0 00 9 95 ___ Treasure Hunting for Fun and Profit _ Treasure Caches Can Be Found 9 95 _ Ghost Town Treasures rnrsnorvnvnrnrvrvrvnvrrnne 9 95 ____ You Can Find Gold with a Metal Detector 9 95 _ Buried Treasures You Can Find 14 95 Gold of the Americas 1 9 95 New Modern Metal Detectors 12 95 _ Gold Panning is Easy sronronrnrvrrnvrnrvrvnvrnrnr 9 95 ___ How to Find Lost Treasure snrvrnvrrnrr 3 95 _ How to Find Gold osie 3 95 ___ How to Search Sand and Surf eorvrvrrrrnn 3 95 Free with the purchase of any other RAM book or Garrett product If you do not wish to purchase anything but would like a free copy of How to Find Lost Treasure mail 2 00 for postage and handling to the address below U S orders only For international orders contact international garrett com Please send payment to RAM Publishing Co 1881 West
15. ss the problem is mechanical Note Remember to include your name address and daytime phone number with your shipment Return your detector to Garrett Metal Detectors 1881 W State St Garland Texas 75042 Please allow one week from the receipt date for the detector s inspection and or repair and another week for its return Garrett will automatically return the detector via UPS or Parcel Post unless you provide a written authorization that instructs otherwise MORE INFORMATION For further assistance please contact the Garrett Customer Service Department at 1 800 527 4011 or 972 494 6151 33 34 WARNING The following measures must be observed at all times Do not hunt in areas where electric lines gas water pipelines bombs or other explosives may be buried Never trespass or hunt on private property without permission National and state parks monuments military sites etc are absolutely off limits Always exercise caution when digging toward a target where the underground conditions are unknown RECOMMENDED READING There are a variety of books available from Garrett that can teach you how to use a metal detector effectively give you ideas about places to hunt and help improve your search and recovery skills All books are written by Charles Garrett unless specified otherwise The revised classic Modern Metal Detectors is a book that provides necessary basic information on metal detector
16. t below the searchcoil Locating small isolated items is more difficult and requires a comprehensive grid search with the detector 23 24 Land searches When searching near wire fences metal buildings etc make sure that you scan the searchcoil parallel to the structure CAUTIONS 1 To avoid acid damage you should install high quality alkaline or nickel metal hydride batteries and always remove them prior to storing the detector 2 If the battery compartment becomes flooded remove the batteries immediately rinse the compartment with fresh water and allow to air dry The electronics compartment is factory sealed and should never be opened The see through helmet mask window on the front panel should remain clean and free from condensation If the window ever displays moisture you should contact the Garrett factory as soon as possible 3 Before diving always examine the searchcoil and headphone connectors and battery cap Verify the battery strength by operating the detector for a couple of minutes prior to field use 25 26 4 Dive with extreme caution Observe diving practices to lessen the risk of becoming entangled with the headphones orcoilcables Ensure that the headphones vent holes are open prior to diving 5 When using the hip mount configuration ensure that the belt will not interfere with equipment removal in the event of an emergency MAINTENANCE 1 Wash off any sand salt and residue
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