Garrett Metal Detectors GTI 1500 manual

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SPECIAL NOTICE The Garre tt GTI 1500 metal detector with T reasure Imaging and Graphic T arget Analyzer truly adds a new dimension to treasure hunting. A precision electronic instrument designed to utilize the mir acles of high technology , especially to help find coins, the GTI 1500 will accomplish this task better than any other detector ever man[...]

Although the GTI 1500 is built to with- stand rugged treatment outdoors while giving years of trouble-free service, always remember that this detector is a precision electronic instrument. Protect it from extreme heat and cold as well as mist, rain or blowing sand. Keep it as clean as possible. 4 - Garrett Metal Detectors[...]

CONTENTS T o The Owner 6 Assembly 9 T ouch pads 13 Graphic T arget Display 16 Hunting Basics 21 Operating Adjustments 27 Control Settings 29 Search Aids 35 Operating Modes 38 Setting Discrimination (Notches) 42 T reasure Imaging 47 Bench T esting 51 Operating Recommendations 53 Headphone Jack 59 Searchcoils 60 Batteries 61 Recommended Accessories 6[...]

TO THE OWNER As the proud owner of a Garrett GTI 1500, you enter a new and exciting world of treasure hunting. T reasure imaging and the Graphic T arget Analyzer enable you to find coins with an ease that will take your breath away . Y ou will spend your hobby hours in recovering treasure, not digging trash. Study this Manual to learn the basic fun[...]

• Use the T arget ID Guide to learn what you've found. • Pinpoint electronically to determine loca- tion of target and learn size and depth. • Find deeper treasures with computeriz ed circuitry . Y our GTI 1500, whose microprocessor- controlled circuitry has been acclaimed and pro ven through countless hours of field use, is unparalleled[...]

W elcome again to the Garrett fr aternity of successful treasure hunting hobbyists. Now , find your own coins and other treasures with the GTI 1500, one of the world’ s most capable and universal metal detectors, yet one that is amazingly easy to operate. 8 - Garrett Metal Detectors[...]

ASSEMBLY Y our GTI 1500 is shipped complete in one carton: A. Control Housing B. Upper and Lower Stems C. Imaging Searchcoil D. Parts Envelope E. T r aining DVD & Owner’s Manual F . Warr anty Registration Card Make certain all of these parts are included and are undamaged. Report any shortages or damages immediately to your dealer . Follow th[...]

Inspect contents of the clear plastic enve- lope (see above) . • One (1) knob • T wo (2) Washers • One (1) threaded bolt 1. Attach the lower stem to the 9.5” imag- ing searchcoil. Make certain that the two rubber washers are inserted onto the lower stem before slipping the searchcoil onto it. Place the threaded bolt through the holes in the[...]

2. Depress buttons in the Control Housing stem and slide on the Upper Stem (see Image B above) . 3. Depress the buttons in the Lower Stem and insert it into the Upper Stem. Buttons will pop into the holes, and you can achieve the desired stem length. The third set of holes from the end is most com- monly used. 4. As shown (see Image C on follow- in[...]

of the searchcoil can be changed easily , if required. T o connect the cable to the detector , insert the cable connector into the connector on the control housing as shown and rotate the collar clockwise until secure (approximately four (4) turns). (See Image D above.) Hand tighten only . Y our GTI 2500 is fully equipped with eight (8) AA batterie[...]

GTI 1500 TOUCH PADS • Power/Hold to Reset T urns detector ON and OFF as well as returns it to factory settings when held. • Menu/Scroll Allows the Operator to scroll through the following settings to make adjustments or turn them ON or OFF . As you continue to push the Menu/Scroll button, you will see the following options: — Modes (5) Coins,[...]

—Custom Functions Menu Sensitivity (Depth), Threshold (Audio Level), Frequency , V olume, T one, R echargable battery — Search Aids Salt Elimination, Belltone, Backlight • Accept / Reject Permits acceptance or rejection of specific target segments shown on the Lower Scale to establish discrimination notches. • Treasure Imaging (Pinpoint) Wh[...]

Jewelry , Relics, Zero, Custom) that was previously being used. - & + These touch pads permit precise regula- tion of the GTI 1500 . Y ou will note that each press of a touch pad causes seg- ments on the Upper Scale to mov e either to the right (+) or to the left (-). The + and - touch pads enable the follow- ing regulation: Permit alternation [...]

GRAPHIC TARGET DISPLAY Target ID Guide This guide printed above the LCD screen shows U.S. coin denominations, gold, sil- ver and other typical metallic objects. Upper Scale Indicates target discovered; Indicates tar- get strength in T reasure Imaging mode; Indicates levels of Menu control settings. Lower Scale Discrimination segments (notches). Ind[...]

Operating Status The complete operating status of your detector is shown on the screen at all times. When the TREASURE IMAGING (pinpointing) touch pad is pressed and held, size and depth of targets will also be shown. The mode in which you are searching will always be shown on the left side of the screen under the MODE heading. MENU, OP ERATE, I MA[...]

Rechargeable (seen in lower right corner of LCD screen). When one of these func- tions has been illuminated by use of the MENU/SCROLL touch pad, it can be regu- lated by pressing the + or - touch pads. Treasure Imaging Five target sizes are shown on the color- coded Imaging diagram at the bottom of the screen. Size A - Solid small oval (orange): ta[...]

Size C - Oval extending to C grid lines (purple): targets larger than coins and smaller than 12-oz. cans, such as large rings, small belt buckles, jewelry and such trash targets as screw tops, bottle caps and complete pull tabs. Size D - Ov al extending to D grid lines (blue): larger belt buckles, large jew- elry items, 12-oz. cans and other items [...]

side of the diagram and the horizontal color-coded lines connecting them. These refer to the five relative sizes at the bot- tom of the Display Screen. Relating conductivity and size to help determine your target before digging it is a unique feature of the GTI. The target cursor on the Upper Scale, which indicates the target's conductivity , [...]

HUNTING BASICS This One T ouch detector is today's most advanced; yet, its basic automatic opera- tion makes it as simple to oper ate as any detector ever manufactured. Y ou can begin hunting with it immediately . No spe- cial instructions are needed bey ond what's included in the next few pages. More importantly , you can start finding c[...]

3. Y our GTI 1500 begins operating with all settings at factory-set levels. Any of the settings can be easily changed, but you many never want to do so! It is recom- mended that you use the factory settings the first few hours you hunt with your detector . Scanning Swing the searchcoil back and forth in front of you in a straight line or slight arc[...]

Discovery Detection of all metal targets w ill be indicated by the appearance of a T arget Cursor on the Upper Scale. A cursor will appear , as shown below , to indicate every detected target and will remain for 4 seconds or until a new target is detected (whichever comes first). Desirable targets will also produce a "beep". In the illust[...]

Treasure Imaging (Pinpoint) Press and hold this touch pad to put your detector into a T reasure Imaging (Pinpoint) mode so that you can locate your target more precisely and also deter- mine its relative size and depth. Siz e will be shown at the bottom of the Display Screen, as shown above. Since you have a B-size target and your T arget Cursor is[...]

Coins mode and that you read carefully the W arning section in this manual. By now you are also certainly impressed with the super sensitivity , depth capabili- ties and the target analysis of this detector which utilizes patented DSP (Digital Signal Processing) methods to give it advanced detection capabilities that can be matched by those of only[...]

Correct operating techniques will enable you to properly use all of the data pre- sented by your detector to become aware of the precise nature of all targets. Y ou will quickly master these techniques and learn why the GTI 1500 with DSP , T reasure Imaging and controls based on patented microprocessor technology has more accurate discrimination an[...]

OPERATING ADJUSTMENTS Status of each of the control selections will be shown on the LCD Graphic Display above the control panel touch pads. When you touch the POWER touch pad, your GTI 1500 is ready to hunt in a Coins operating mode with threshold, sensitivity (depth), tone and other controls preset at the fac - tory , as shown above. As explained [...]

unlike that of ordinary detectors, howev er , adapts automatically to the coil's r ate of movement. Y our searches will have the same high degree of accuracy whether you are scanning r apidly to cover a large area quickly or moving methodically and very slowly over a location with multiple targets. Automatic circuitry is designed to provide pr[...]

CONTROL SETTINGS Sensitivity (Depth) Press the MENU touch pad to display SENSITIVITY on the screen (shown with factory setting at approximately 75% as indicated on the Upper Scale), and you can use the + and - touch pads to adjust the sensitivity at which your detector will oper- ate most effectively . These changes will be shown on the Upper Scale[...]

Press + to increase sensitivity . Press - to decrease. A single touch and release adjusts the level in a small increment. Continuous pressing results in a continu- ous adjustment. Threshold Press the MENU touch pad to display THRESH on the screen (above, with fac- tory setting indicated on Upper Scale), and you can use the + and - touch pads to adj[...]

The audio will increase sharply when- ever a desirable target is encountered. (Remember , a cursor will indicate every target.) When headphones are used, it will usually be necessary to decrease the threshold level since sound is more audible through headphones. Frequency This detector is capable of operating at four different detection frequencies[...]

Whenever you hear unusual sounds and believe that you are encountering interfer- ence, press and release the MENU touch pad until FREQ appears on the screen (as shown on the previous page) . The Upper Scale will indicate the frequency at which your detector is now operating. Use the + and - touch pads to change this frequency until you find one wit[...]

controls the maximum volume of sound produced by the GTI 1500 only when a target is encountered, it will not affect the threshold level y ou have already selected as the primary audio function of your detector . When headphones are used, it will usually be necessary to decrease volume since detections sounds are louder over head- phones. Experiment[...]

lower the pitch to a bass tone. All touches will make changes indicated on the Upper Scale. Experiment to find the pitch that suits your hearing. Battery Gauge The scale (lower right of screen) indicates the condition of standard (carbon or alka- line) or rechargeable batteries. T o turn on the rechargeable option, press the MENU touch pad until RE[...]

SEARCH AIDS Salt Elimination When hunting on an ocean beach, or over any ground with high salt content, you may want to use this Search Aid to elimi- nate interference caused by wetted salt. If you wish to turn on the Salt Elimination aid, use the MENU to displa y Salt Elim and press + when the word is blinking to turn it on. Press - to turn OFF th[...]

is necessary at factory settings. T o turn off this function use MENU to display the word, press - and the word will begin blinking. Pressing + will turn it back on. Backlight This function of the GTI 1500 lights the control panel so that the detector can be used at night or in dark places. The Backlight will turn on automatically when- ever the un[...]

with the various operating functions will be retained by the detector when you press POWER to turn the detector OFF . These personal alterations are held in a non-volatile memory circuit and retained even when the batteries are remov ed. The detector must be turned off when batteries are being replaced. Any changes you make in discrimination settin[...]

OPERATING MODES Press MENU and use the + touch pad to rotate through five different modes of detection that are available, each with a specific discrimination configuration as shown on the Lower Scale. When the name of the particular mode you select is constant, while the other four are blinking, either press the OPERA TE touch pad to begin hunting[...]

treasure hunters, however , all understand that they must dig some junk occasionally . Correct operation of the GTI 1500 should reduce this wasted effort. Jewelry This detection mode, is specifically designed to aid in hunting for jewelry , with discrimination in the detector's circuitry set to eliminate such trash targets as lower conductivit[...]

ing good targets in the lower conductivity range, items generally sought by most relic hunters. Zero Discrimination This mode, shown above, permits you to hunt with no discrimination and offers a method of "dual-mode" hunting. Y our detector will give a "beep" to announce any metal it scans o ver while a cursor indicates it. Y o[...]

retained by the detector's memory when it is switched OFF . Many GTI 1500 owners may rarely use the Custom mode, and will hunt only in the preset Coins, Jewelry , Relics or Z ero Discrimination modes. Complete instruc- tions for setting discrimination notches for any of these modes can be found on the following four pages of this manual. Note:[...]

SETTING DISCRIMINATIO N (Notches) Using only the discrimination of its factory- set Coins, Jewelry , Relics and Z ero operat- ing modes, the GTI 1500 will more than satisfy the requirements of almost every treasure hunter . Many will never require any other discrimination. Still, this detec - tor offers more, Custom discrimination, to tailor a dete[...]

First Method: While in the OPERA TE mode press the + and - touch pads to position the blinking cursor above the Discrimination Segment corresponding to the particular target to be detected or ignored. If the segment is turned on (showing), that target will be signaled audibly . If you wish to reject that type target, press the ACCEPT/REJECT touch p[...]

on. If it is showing, pressing this pad will turn it OFF . Remember: When y ou press the ACCEPT/ REJECT touch pad, y ou cause the dis- crimination circuit to reject a target that is shown on corresponding segments of both the Lower and Upper Scales. This rejection will be indicated by the disappearance of a Lower Scale segment. The same touch pad i[...]

modes return to factory-set detection settings each time the detector is turned OFF and turned back ON. Custom mode discrimination changes will be lost only when POWER is held for five (5) seconds for return of factory settings. Why Use Notches? There are numerous reasons wh y you would want to accept or reject specific targets: Y ou may be looking[...]

tors permit such accurate levels of precise discrimination. Return to factory settings by pressing and holding the POWER touch pad for 5 seconds. 46 - Garrett Metal Detectors[...]

TREASURE IMAGING Sizing and pinpointing targets precisely are important capabilities of your GTI 1500. Furthermore, when you press and hold the TREASURE IMAGING pad, the searchcoil can remain stationary ov er your target. Move the coil around slightly to try to center it directly over the target. T argets must pass beneath the searchcoil, not above[...]

will notice a more distinct audio sound when the target is directly beneath the searchcoil's center . In addition, you will note that signal strength on the Upper Scale will increase. The Upper Scale cursor indicating the target just discovered will blink, even as signal strength is shown. Depth Reading on Scales When you press and hold the TR[...]

Four typical examples: Graphic T arget Imaging 1500 - 49[...]

Radiating Size Array While the TREASURE IMAGING touch pad is being pressed and held, you may occa- sionally observe a size reading that con- tinues to change dramatically , with the size appearing to "radiate" rapidly and continually outward from the small ov al at the center . Garrett engineers call this a "Radiating Array" eff[...]

BENCH TESTING This will enable you to test typical targets and to learn about the discriminati ng capabilities of the GTI before taking it into the field or trying to set discrimination. The following tests should be performed, as shown above with the searchcoil per- pendicular to a bench, floor or other non- metallic surface and several feet away [...]

will cause a "beep." Pa y particular atten- tion to the size of each target as indicated when you press and hold the TREASURE IMAGING touch pad. 2. Use the MENU/SCROLL and (+) or (- - ) touch pads to select the Coins detection mode. Then press OPERA TE. Bring the same targets across the bottom of the searchcoil and listen for a "beep[...]

OPERATING RECOMMENDATIONS As you walk, scan the searchcoil from side to side in a str aight line or slight arc. K eep the coil level and at a constant height of one or two inches above the ground while you move it at a rate of about one to three feet per second. When scanning, do not hurry . Be methodi- cal. Do not skip any areas. Overlap each scan[...]

Raising the coil an inch or two as you scan over such soil is sometimes helpful. Remember to keep the coil level and at a constant height. Encrustation or patina may also affect conductivity of the target, resulting in improper classification. Recovery (Treasure Imaging) Locating your target precisely will enable you to recover it by digging the sm[...]

Last Mode Use of this touch pad can be particularly helpful while scanning because it effec- tively converts your GTI 1500 into an instantaneous dual, or triple-mode detec- tor . P ressing and releasi ng thi s touc h pad returns detector operations to the mode that has just previously been used. Thus, it is easy to alternate between any two operati[...]

Another indication of a reject target is an audio signal as you scan one way , and no response when scanning from the other direction. If you encounter a large target or scan too close to it, the detector will give an audible overload indication, which sounds like a buzzing alarm. T arget identification, size and depth readings may be incorrect if [...]

as ground and atmospheric conditions permit. Attempting to operate at sensitivi- ties above a level that permits a quiet and stable operation may actually cause you to miss deep targets that you would have found had you not "pushed" the detector . Another point to remember is that when you are searching with SENSITIVITY set below the maxi[...]

Remember that newly buried objects, especially coins, will be somewhat more difficult to detect than items buried for some time. This is primarily a metallurgi- cal phenomenon. Experiment with various detection modes, and pay close attention to both audio and TREASURE IMAGING signals as you scan. Note your detector's response at the various se[...]

HEADPHONE JACK The headphone jack is located at the rear of the battery pack under the armrest. Headphones are a valuable accessory for any metal detector to mask interfer- ence from outside noise. Headphones are particularly essential when hunting where noise (running water , people, surf , traffic, etc.) is excessiv e. Use of headphones will also[...]

SEARCHCOILS Y our GTI 1500 is equipped with a 9.5" PRO formance imaging coil. Y ou may also wish to purchase a 12.5" imaging coil. Also available for the GTI 1500 are a 4.5" Sniper coil, a 10" x 14" DD coil and a 5x10" DD coil. The larger coil is helpful in seeking large and deep targets, while the smaller and elliptic[...]

BATTERIES The GTI 1500 is equipped with two bat - tery packs, each holding four (4) standard AA batteries. (It is recommended that top quality heavy duty or alkaline batteries be used. The detector is also designed to ut i li ze nic k el met al hyd ri d e (N iM H ) rechargeable batteries.) It is advisable to remove the battery packs when the detec [...]

Checking Condition Battery condition is reported continuously by the horizontal row of squares on the lower right side of the screen. Five are vis- ible when fully charged batteries are being used. When only one square remains, batteries should be changed. Y ou should always carry spares so that you will be ready . Rechargeable Batteries When recha[...]

3. Slip up the two cov ers on the battery panel and remove them completely . 4. T ake out the two battery holders (which are not connected by wire) by tilting the pack. (See image above.) 5. Remo ve the old batteries. 6. Install new batteries. Carefully observe polarity of the batteries and mak e certain the new batteries are aligned properly . 7. [...]

proper orientation. This is important! If an effort is made to install holders incorrectly , replacing the battery case cov ers will be difficult. If they are forced, damage to the detector can result. 8. Press down firmly and slide each cover back in place. R emember: The detector must be turned off when batteries are being changed. Caution: Use o[...]

RECOMMENDED ACCESSORIES Y our Garrett GTI 1500 represents the highest quality in metal detector manufac - turing. Complement it with quality acces- sories such as these from Garrett: • Headphones that will enable you to hear signals from the GTI more distinctly because they will mask other conflicting sounds from the environment. • Additional s[...]

MAINTENANCE • Always remember that your GTI 1500 is a sensitive electronic instrument. It is built to withstand rugged treatment in the outdoors. Use your Garrett detector to the fullest extent possible, and never feel that you hav e to baby it. Y et, alwa ys protect the detector and handle it with reasonable care. • T ry to avoid temperature e[...]

• When storing for a month or longer , remove batteries from the detector and from their holders as well. Graphic T arget Imaging 1500 - 67[...]

SPECIALIZED HUNTING Coins Because of its unique discrimination and imaging capabilities, the GTI 1500 func- tions as an outstanding coin hunting detector , especially in its Coins mode. Deep seeking capability , target conduc - tivity and T reasure Imaging information available from Digital Signal Processor (DSP) circuitry , plus the GTI 1500'[...]

cover quantities of specific trash targets that are not being eliminated from detec- tion by factory-set discrimination. Y ou can then use the ACCEPT/REJECT touch pad to eliminate these pesky pieces of junk, no matter which mode you are using. Just move your searchcoil across one of them, watch your Upper Scale for its response and push the ACCEPT/[...]

Relics Relics of all shapes and sizes can be found with a GTI 1500 when you hunt in its Relics mode. This mode is especially designed to eliminate those nuisance tar- gets most often encountered in relic hunt- ing. Y ou may also want to search in the Zero Discrimination mode, but you must be prepared to dig metallic tr ash since your detector will [...]

Gold Stinger is recommended. It must be emphasized, however , that prospectors, when using the GTI 1500 or any other quality detector usually prefer to operate in the Zero Discrimination detec- tion mode. When prospecting, discrimi- nation may reduce the amount of small nuggets found, but some areas contain so much iron trash that a small amount of[...]

REPAIR SERVICE In case of difficulty , read this Owner's Manual again thoroughly to make certain your Garrett GTI 1500 is not inoperable because of wrong adjustments or improp- er oper ating methods. Y our dealer may also be able to offer advice. Remember that computerized circuitry of this detec- tor permits you to restore instantly all of it[...]

• Y ou have checked with your dealer . • Y ou have tried to restore factory set- tings. • Y ou have carefully packed the detec - tor in its original shipping carton or other suitable box. Make certain that proper insulation or packing material is used to keep all parts secure. Do not ship stems, headphones or armrests unless they are part of [...]

post unless you give written authorization to ship collect by air parcel post, UPS Blue (air) or air freight. 74 - Garrett Metal Detectors[...]

RECOMMENDED READING Since y our Garrett GTI 1500 is a truly universal detector , all of the RAM books will be pertinent to its use. Of particular interest, however , will be the revised ver- sion of Garrett's popular Modern Metal Detectors , a basic text that will help you to understand all types of metal detection equipment and how to use the[...]

about One- T ouch detectors such as the GTI 2500. Y ou will also be interested in The New Successful Coin Hunting , filled with "how to" tips and success stories about coin hunting. Charles Garrett's pocket -sized, treasure- hunting field guides are also highly recom- mended. Titles in this informative series include: How To Find Los[...]

Graphic T arget Imaging 1500 - 77 Please send me the following RAM books: (Please indicate number of copies desir ed.) ___ New Successful Coin Hunting ....................$9.95 ___ T reasur e Hunting for Fun and Prot .........$9.95 ___ T reasur e Caches Can Be Found .................$9.95 ___ Ghost T own T r easures .............................[...]

78 - Garrett Metal Detectors MAIL-IN ORDER FORM Add $2.00 for rst book, and $1.00 for each additional book ordered (maximum $3.00) for handling and shipping charges. T otal for books $______________ 8.25% T ax (TX/CA residents) $______________ Handling Charge $______________ TOT AL $______________ Payment Options: ___ Enclosed check or money ord[...]

SPECIFICATIONS Detector T ype: Very low Frequency , tr ans- mitter/receiver , T reasure Imaging and Graphic T arget Analyz er for precise target identification, multiple notch discrimina- tion. Controls: Easy access touch pads Display: High visibility LCD adjacent to touch pads; data accessible at any angle; backlight. Detection Frequency: 7.0 kHz,[...]

Battery Life: (Approximate) Alkaline: 25 hrs. Carbon Zinc: 18 hrs. NiMH: 20 hrs. Humidity: 0 to 95% Non-condensing T emperatures: Operating: 0 ˚ to 130 ˚ F . Storage: -20 ˚ to 150 ˚ F . Construction: High strength glass-filled nylon with han- dle-mounted control/display panel. W eight: (With 9 1/2-inch searchcoil) 4 lbs. , 2 ozs. 80 - Garrett M[...]

MIND YOUR MANNERS Filling holes and obeying no trespassing signs are but two requirements of a dedi- cated metal detector hobbyist. A sincere request that Charles Garrett makes to every user of one of his detectors is that each place searched be left in a better condition than it was found. Thousands of individuals and organizations have adopt - ed[...]

• I will not destroy property , buildings or the remains of ghost towns and other deserted structures. • I will not leave litter or uncovered items lying around. I will carry all trash and dug targets with me when I leave each search area. • I will observe the Golden Rule, using good outdoor manners and conducting myself at all times in a man[...]

TRADEMARKS / PATENTS GTI 1500, T reasureVision, Graphic T arget Analyzer and One T ouch are TM of Garrett Electronics, Inc. Patent Protection: Garrett's high tech instruments are pro- tected by one or more of the following U.S. Patents and other Patents P ending: 5,148,151, 5,138,262, 5,721,489, 4,398,104, 4,423,377, 4,303,879, 4,334,191, 3,66[...]

WARNING! Any metal detector may discover under- ground power lines, explosives or other items which when struck could cause per- sonal injury . When searching for treasure with your Garrett GTI 1500, observe these precautions: • Do not hunt in an area where you believe there may be shallowly buried under- ground electric lines or pipes. • Do no[...]

Graphic T arget Imaging 1500 - 85[...]

Garrett Metal Detectors 1881 W . State Street Garland, T exas 75042 T : (972) 494-6151 F : (972) 494-1881 1.800.527.4011 (U.S.) sales@garrett.com www .garrett.com 86 - Garrett Metal Detectors[...]

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Garrett Metal Detectors. Copyright 2008 All Rights Reserved. 1524900.D.0408 TM[...]