Omega 8000 User's Manual
Contents
1. omega 8000 METAL DETECTOR OWNER S MANUAL 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 increase sensitivity only 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 Also keep the search coil away from objects containing metal such as floors and walls 3 Use a 9 volt ALKALINE battery only Do not use Heavy Duty Batteries TABLE OF CONTENTS TEMN PAA PP PAP PN PE PA AA 3 ASSemDIy eega e a ae ead NANAMAN AYA PA KABABA ALALAY eae 4 5 Batten S a au See cae tees Mama AD Rae KANA E eats 6 Quick Start Demo an AN NANGANAK NG Dana aa BALER aoa ANAN Kat 7 8 Basic Of Metal Detecting aaa 9 10 Ground Minerals 2 paka A BARA A cyae se louney Je2 ee 9 Wai Aga AU donee LA BER tau eens sae 9 Identifying Buried Objects 9 Size and Depth of Buried Objects 10 BAG a KANA Magana he ape ae Ror 10 How To Work The Con2. CONTROL SETTING DISPLAY The setting for each control is displayed as a 2 digit number on the bottom right of the screen Each time you turn a control knob or press FREQ or TONES the setting for that control is immediately displayed below the word SETTING This 2 digit display value will revert back to the Ground Balance setting after a control is not adjusted for a few seconds When the SETTING value represents the Ground Balance setting ROUND will be displayed under the number GROUND BALANCING WHAT IS GROUND BALANCING Why do need to Ground Balance All soils contain minerals Signals from ground minerals are often tens or hundreds of times as strong as the signal froma 4A buried metal object The magnetism of iron minerals found in nearly all soils causes one type of interfering signal Dissolved UP mineral salts found in some soils are electricall y ZT conductive causing another type of interfering signal DOWN Ground Balancing is the process by which the metal detector y cancels the unwanted signals coming from the ground minerals while still detecting the signals from buried metal objects This is accomplished by matching the detector s ground balance setting to the phase of the ground signal When the detector is calibrated to the soil the result will be deeper target detection quieter operation and more accurate target identification How to Ground Balance your detector Ground Balancing
3. b The nickel has been notched in Rotate the right knob 100 counterclockwise and click on into AT mode Pass the quarter over the searchcoil Vary the distance from the searchcoil on each pass Notice the changing pitch and volume Press and hold 8 a Notice that motion is not required A motionless object induces a sound b Notice the single monotone hum The PINPOINT mode produces only this single sound regardless of the type of metal detected c Move the quarter closer to and farther away from the searchcoil Notice the changing depth display values The 2 digit depth reading indicates the distance in inches away from the searchcoil THE BASICS OF METAL DETECTING A hobby metal detector is intended for locating buried metal objects When searching for metals underground or on the surface you have the following challenges and objectives 1 Ignoring signals caused by ground minerals 2 Ignoring signals caused by metal objects that you do not want to find like pull tabs Identifying a buried metal object before you dig it up Estimating the size and depth of objects to facilitate digging them up 5 Eliminating the effects of electromagnetic interference from other electronic devices Oo Your Omega metal detector is designed with these things in mind 1 Ground Minerals All soils contain minerals Signals from ground minerals can interfere with the signals from metal objects you want to find All soils diff
4. 3 At the point where the GROUND value at the bottom right of the screen stop changing the detector has correctly measured the ground s phase 4 Immediately release the control pad to set the detector s internal ground setting value equal to the last GROUND value displayed If you wish to manually change the detector s internal ground setting press the or W touchpads Note that each 10 presses of these touchpads will change the displayed setting by only 1 number The detector actually has 1 000 different ground settings to choose from but uses only 2 digits to display the number Reasons for this manual ground balancing feature are explained in the Ground Balancing section of the manual FREQ Frequency Selection Use this control if detector behaves erratically and you suspect electromagnetic interference from some other electronic device This control will change the detector s operating frequency Press until you find one of the frequencies which minimizes the interference Choices are default frequency ist alternate frequency 2nd alternate frequency Changing frequency may require you to change the ground balance setting See section on ground balancing Touchpad Controls continued on next page 13 CONTROL PANEL conr TOUCHPAD CONTROLS continued TONES Number of Tones Selection In Discrimination mode the OMEGA indicates target type by audio tone The TONES button allows the user to select one of four differe
5. CESSARY AUDIO TARGET IDENTIFICATION SYSTEM Different types of metals will induce different types of sounds depending on your TONES setting There are 4 choices in DISCRIMINATION MODE d1 Medium to high pitch tone tone strength d2 Iron produces a bass signal d3 varying in proportion to target signal strength Large shallow objects will produce a squeal The variable audio pitch provides you more information about the detected object Volume and Pitch increase with increase in signal strength Three different audio tones Bass Tone Iron Low Tone Foil 56 Tab and Zinc High Tone Dime Qtr The default setting is d3 To choose from the above selections press the TONES touch pad Each press of the TONES touch pad cycles to the next selection There are 4 choices in ALL METALS MODE regardless Volume varies in proportion to signal strength Non ferrous targets respond as in d1 d4 Four Different audio tones Bass Tone Iron Low Tone Foil Tab and Zinc Medium Tone 5t High Tone Dime Qtr A1 A2 A3 A4 pitch varies with each setting 18 DEPTH AND TARGET DISPLAY 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 normally register a repeating unchanging target identification when a buried target has been located and identified If upon repeat
6. arger targets and targets moving closer to the searchcoil will increase the tone s pitch and its volume DISCRIMINATION a After clicking on the knob s rotation controls the detector s discrimination setting Left in the far counterclockwise position without clicking the knob off turns the discrimination function off all metal targets will be detected b Rotating the knob clockwise increases the level of discrimination c Notice that as you rotate the knob the SETTING values at the bottom right of the screen will change At the same time target icons across the top of the screen will disappear to indicate that entire target categories have been eliminated 12 CONTROL PANEL conr TOUCHPAD CONTROLS ARE AS FOLLOWS GND GRAB Ground Grab The control allows you to set the detector s internal ground setting equal to the phase of the ground you are searching over See the section on Ground Balancing for a more thorough explanation of this feature and the reason for using it Press and hold the GND GRAB touch pad to invoke automatic ground balancing This will grab the ground value In order to determine the most accurate ground value pump the coil up and down over the ground while standing in one place over a patch of ground free of metal 1 Start with the coil 6 above the ground lower it to about 1 from the ground 2 Continue this pumping motion until all of the bars in the GROUND ERROR window disappear
7. cal Info Fe O BARGRAPH The Fe O 4 segment bargraph indicates the amount of ground mineralization independent of type expressed as an equivalent volume concentration of magnetite Fe O It updates every second It is sensitive to motion and will give the most accurate readings if you pump the search coil up and down several times over the ground The presence of metal or hot rocks will cause the readings to be inaccurate If you stop moving the search coil the bargraph will go blank INDICATION Yo Fe O SUSCEPTIBILITY 4 Bars High 0 4 1 6 1 000 4 000 3 Bars Medium 0 1 0 4 250 1 000 2 Bars Low 0 025 0 1 60 250 1 Bars Very Low 0 006 025 15 60 none less than 006 less than 15 Magnetic susceptibility is expressed in micro cgs units In a salt water environment in the absence of iron minerals the bargraph indicates relative electrical conductivity In soils with greater than 4 000 micro cgs units magnetic susceptibility the signal from the soil may saturate overload the circuits This will not harm the detector but the machine will not be usable in that condition The solution is to hold the search coil several inches above the soil surface so it isn t seeing as much dirt By listening and watching you will know how high you need to hold the search coil in order to avoid overload The highest magnetic susceptibilities are usually found in soils developed over igneous rocks in alluvial b
8. eadphones with a stereo plug will work headphones with a mono plug will not work Using headphones improves battery life and also prevents the sounds from annoying bystanders It also allows you to hear subtle changes in the sound more clearly particularly if searching in a noisy location For safety reasons do not use headphones near traffic or where other dangers are present This device is to be used with interconnecting cables headphone cables shorter than three meters OPERATION and CONTROLS POWERING UP Click the left knob to turn the detector ON After clicking the knob on continued clockwise rotation will increase sensitivity We suggest keeping the sensitivity below 70 until you become familiar with the detector s operation HOW TO WORK THE CONTROLS PIN 160 GRAB POINT WA 4 NOTCH t MODE SELECTION i and DISCRIMINATION LEVEL control Click LEFT to enter AutoTune Mode Click RIGHT to enter DISCRIMINATION Mode Rotate knob to desired discrimination level NOTCH Press to selectively include or exclude specific target categories ON OFF SENSITIVITY Click to turn on Turn knob to increase detection sensitivity GROUND GRAB Press and hold touch pad in middle to activate automatic ground balancing Press Aor y to manually adjust the ground setting TONES Press to customize the number of tones you hear and change tone characteristics FREQUENCY Press to change frequency to avoid interfere
9. ect and the distance from the coil As a starting point refer to the table below TARGET Readout The table below lists some common approximate target value equivalents With experience in the field you will recognize many types of metal objects by their numeric value TYPICAL VALUE 10 40 56 57 60 62 62 65 66 72 76 78 82 83 86 87 90 91 94 95 Iron Nickel Pull Tab old style Screw Cap Zinc Penny Quarter Half Dollar Silver Dollar 20 POSSIBLE OBJECTS Pull Tab new style Dime amp Copper Cent SEARCH TECHNIQUES in Disc mode Target Verification After detecting a target do the following 1 Walk around the target in a circle 2 While circling the target continue sweeping the search coil across the target Sweep once every 30 or 40 of the circle If the tone does not change and the target ID value is consistent as you circle the target you can be highly confident of the target s identification If the tone or target ID changes as you circle the target you may have multiple targets or an irregularly shaped object If the tone completely 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 disappears at different angles the target may be trash or a low value metal If you are new to the hobby dig all targets With practice in the field you w
10. ed passes over the same spot the target identification reads inconsistently the target is probably a trash item oxidized metal or too deep to be classified accurately With practice you will learn to unearth only the more repeatable signals The segment identifications are highly accurate when detecting the objects described on the screen However if you register in a given category for an unknown buried object you could be detecting a metallic object other than the object described on the screen but with the same metallic signature Also the greater the distance between the target and the coil the less accurate the target identification GOLD TARGETS Gold objects will register on the left side of the LCD scale Gold is categorized depending on its size The smaller the gold object the further to the left it will register Small gold items will register under Iron or Foil Medium sized gold items will usually register under Nickel or P Tab Large gold items will usually register under Tab or Zinc SILVER TARGETS Silver objects will normally register to the right of the scale under Dime or Qtr depending on the size of the object The larger the object the farther to the right it will register IRON Most iron objects will fall into the Iron category Very large iron objects like a manhole cover will usually fall into the Qtr category NICKEL Nickels and most newer pull tabs will register here P TAB Old
11. er and can differ greatly in the type and amount of ground minerals present You therefore want to calibrate the detector to the specific ground conditions where you are hunting The detector incorporates both automated and manual ground balancing features which will eliminate false signals from most types of soils If you want to maximize the detector s target identification accuracy and depth of detection use the GROUND GRAB function to calibrate the detector to the ground where you are searching See the section on GROUND GRAB for details 2 Trash If searching for coins which will induce higher tone sounds you want to ignore items like aluminum foil nails and pull tabs These undesirable items induce lower tones You can listen to the sounds of all objects detected and decide on what you want to dig up Or you can eliminate unwanted metals from detection by using the DISCRIMINATION feature 3 Identifying Buried Objects When searching in the DISCRIMINATION mode different objects induce different tones high medium low bass and are classified on the display screen in different categories from left to right A 2 digit numerical reading is also provided in the middle of the display for more precise target identification The DISCRIMINATION mode requires motion sweep the coil over the metal object THE BASICS continued 4 Size and Depth of Buried Objects When using the detector in the motion DISCRIMINATION mode the rela
12. er pull tabs and ring pulls from beverage cans usually will register here Many gold rings will also register here ZINC Newer pennies post 1982 will register here Many non U S coins will also register here S CAP Screw caps from glass bottles will register here Large gold rings like a class ring could also register here DIME Dimes and pre 1982 copper pennies 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 detector will eliminate or indicate the presence of most common trash items it is impossible to accurately classify ALL buried objects 19 DEPTH AND TARGET DISPLAY Reading the display continued DEPTH INDICATOR The Depth Indicator is calibrated for coin sized objects It indicates the probable depth of the target in inches While holding the PinPoint touch pad and passing over a metal object DEPTH will appear under to the two digit number in the middle of the screen TWO DIGIT TARGET INDICATOR In discrimination mode the Two 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 learn to associate target values with the probable identification of buried objects The target value can vary each time the coil passes over the target depending upon the angle of the obj
13. etter have a friend hold the detector with the searchcoil off the ground b Keep the searchcoil away from walls floors and metal objects c Remove watches rings and jewelry d Turn off lights or appliances whose electromagnetic emissions may cause interference e Pivot the searchcoil back Ill Click on detector with the left knob Set it at the 12 00 position for this demonstration IV Click the right knob to the lowest Disc setting V Wave each object over the searchcoil a Notice a different tone for each object Bas Tone Nail Low Tone Nickle and Zinc Penny High Tone Quarter b Motion is required Objects must be in motion over the searchcoil to be detected in this mode VI Rotate the DISC right knob until the word IRON disappears from the screen Make sure that the word FOIL is still illuminated VII Wave the nail over the searchcoil a The nail will not be detected b The nail has been discriminated out Quick Start Demo continued on next page QUICK START continued Vill IX XI XII XIII Rotate the DISC knob until the words IRON FOIL NICKEL P TAB S CAP and ZINC all disappear Wave the nickel a The nickel will not be detected Press the NOTCH touchpad on the front panel three times The word NICKEL will start flashing Wait until the flashing stops NICKEL will be illuminated Wave the Nickel a The nickel is now again detected
14. hing realize that drift will occur over time causing the detector to gain or lose sensitivity Periodic retuning of the detector is required to minimize drift release and press PINPOINT again to retune 22 NOTES UNIT SPECIFICATIONS Mechanical S rod with electronics housing on rod 3 piece breakdown construction nonmetallic telescoping lower rod adjustable position arm rest Weight 2 lbs 14 oz with battery installed Standard search coil 10 inch 25 cm open frame elliptical concentric waterproof Batteries single 9 volt rectangular alkaline Operating principle VLF induction balance Operating frequency nominal 7 8 kHz microprocessor controlled Basic sensitivity 2 5 x 10 root Hertz detectivity Lag coefficient 92 milliseconds Reactive overload 5 000 micro cgs with standard search coil Resistive overload 600 micro cgs with standard search coil Ground balance range from ferrite to salt water inclusive Discrimination ground suppression combination of 2 and 3 order methods Target ID ground suppression 3 order Battery life 20 hours on good quality alkaline Operating temp range 14 to 122 degrees F 10 to 50 C Operating humidity range 0 90 noncondensing TREASURE HUNTER S CODE OF ETHICS 1 Respect the rights and property of others 2 Observe all laws whether national state or local 3 Never destroy historical or archaeological treasures 4 Leave the land and vegetation as it
15. i mum by adjusting the Ground Setting Before making an adjustment it is best to verify the Ground Error as follows 1 Place the detector into AutoTune Mode 2 Pump the searchcoil up and down over a patch of ground free of metal repeatedly moving the coil to within 2 of the ground and lifting it up about 6 over the ground lf bars appear at the top of the graph adjust the Ground Setting by pressing the W until all of the bars disappear If bars appear at the bottom of the graph adjust the Ground Setting by pressing the A until all of the bars disappear While in AutoTune Mode pumping the searchcoil over the ground you will also hear audible evidence of an out of adjustment Ground Setting If the Ground Setting is too low there will be a difference in the sound as the searchcoil is moving away from the gound It will sound like you are pulling the sound out of the ground If the Grown setting is too high it will sound like you are pushing the sound into the ground e If the sound is louder as you raise the searchcoil press A to increase the ground balance setting e If the sound is louder as you lower the searchcoil press V reduce the ground balance setting 17 GROUND ERROR conr GROUND ADJUSTMENT CHART or in autotune pumping coil sounds like then PUSHING SOUND QUT OF PRESS TO ADJUST GROUND PULLING SOUND INTO PRESS TO ADJUST GROUND SAME SOUND NO NO BARS WHEN RAISING ADJUSTMENT AND LOWERING NE
16. iation with the past Many relics are made of iron but can also be made of bronze or precious metals IRON lron is acommon 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 This Detector incorporates proprietary circuitry to eliminate false signals from severe ground conditions a ASSEMBLY Assemb
17. ill soon identify audible and visual target feedback with certain types of metal objects Pinpointing process in motion modes 1 Sweep over target in narrowing side to side pattern 2 Take visual note of spot on ground where beep occurs 3 Step 90 to the side of the target 4 Sweep coil over same area at 90 to 1st sweep pattern 5 This pinpoints the target location with an X 21 TARGET PINPOINTING in PINPOINT moce After you have identified a target using a motion mode of detection press and hold the PINPOINT pad to identify the target s exact location This technique can yield more information about the target s shape and size and also find its exact location to facilitate extraction Pinpoint as follows 1 Position the search coil just barely off the ground and to the side of the target 2 Now move the search coil slowly across the target and you can locate it by the sound The target is located directly under where the sound is loudest Narrow It Down 1 To narrow the response further position the center of the search coil near the center of the response pattern but not directly over the center 2 Release the PINPOINT touch pad 3 Press and hold PINPOINT pad again 4 Repeat this narrowing procedure to narrow the field of detection further Note Depth indication is less accurate after narrowing COIL DRIFT If you plan to use the PINPOINT mode for continuous searc
18. ited to replacing or repairing at our option the metal detector returned shipping cost prepaid to First Texas Products Shipping cost to First Texas Products is the responsibility of the consumer To return your detector for service please first contact First Texas for a Return Authorization RA Number Reference the RA number on your package and return the detector within 15 days of calling to First Texas Products L L C 1465 H Henry Brennan Dr El Paso TX 79936 Phone 1 800 413 4131 NOTE TO FOREIGN COUNTRY CUSTOMERS This warranty may vary in other countries check with your distributor for details Factory warranty follows the channel of distribution Warranty does not cover shipping costs Copyright 2009 by First Texas Products L L C All rights reserved including the right to reproduce this book or parts thereof in any form except for the inclusion of brief quotations in a review Published by First Texas Products L LC Warranty coverage does not include the cost of transporting the detector back to an owner who is located outside of the United States of America Copyright 2009 All rights reserved including the right to reproduce this book or parts thereof in any form TEKNETICS MOMEGA 1465 H Henry Brennan El Paso TX 79936 e 915 225 0333 071409
19. k this adjustment It is very important to keep the cable secure against the stem especially at high sensitivity as movement in the cable may cause false signals ASSEMBLY Adjusting the Arm Rest The arm rest may be moved forward or backwards by removing the single screw and nut and then repositioning the 2 piece arm rest Users with shorter arms may find the arm rest more comfortable in the forward position In order to move the arm rest backwards the plastic plug must be removed from aes the aluminum tube Compartment back side Arm Rest Strap The strap is provided for your convenience Some users prefer to use the strap when swing the detector vigorously in order to hold the detector secure against the arm Headphone Jack Velcro Strap Locking Collar The detector can also be used without the strap with no compromise to detector balance ff as ok Search p Upper and stability under most conditions Coil Cabe QHA Siem Silver Button _ Locking UN Collar Silver knob Biaxial j Searchoil BATTERIES A 4 segment battery indicator at the top left of the display indicates the battery condition The detector requires a single 9 volt ALKALINE battery battery not included Do not use ordinary zinc carbon batteries Do not use Heavy Duty batteries Rechargeable batteries can also be used If you wish to use rechargeable batteries we recommend u
20. lack sand streaks on beaches and in red clay soils of humid climates The lowest magnetic susceptibilities are usually found in white beach sands of tropical and subtropical regions and soils developed over limestone Ground Error The bottom left hand corner of the display contains a graphic which indicates if your detector s ground balance setting needs to be adjusted The Omega has a tracking system which continuously analyzes the phase of the ground you are searching It then compares this ground phase value with the detector s internal Ground Setting indicated on the bottom right of the display If the detector s internal Gound Setting is equal to the actual phase of the ground the detector is properly ground balanced and the Ground Error window is clear GROUND ERROR conr When the detector s internal Ground Setting is higher than the actual phase of the ground the bars on the top of the graph will be illuminated The bigger the error is the more bars will show up When the detector s internal Ground Setting is lower than the actual phase of the ground the bars on the bottom of the graph will be illumi nated The bigger the error is the more bars will show up If the Ground Error exceeds the level of three bars A or Y will appear indicating that the maximum error has been reached and action must be taken to adjust the Ground Setting To maintain maximum detector performance keep the Ground Error to a min
21. ly is easy and requires no tools Loosen both Locking Collars by rotating 10096 counterclockwise Insert the Upper Stem into the S Rod and click Silver Button into hole Position the lower stem with the silver button toward the back Using the bolt and knurled knob attach the search coil to the lower stem 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 length that lets you maintain a comfortable upright posture with your arm relaxed at your side and the search coil parallel to the ground in front of you Wind the cable securely around the stems Q Q Push cable into connector on back of housing Do not twist the cable or plug Turn knurled cap nut only Use minimal finger pressure to start the threads Do not cross thread When the cap nut is fully engaged over the threaded connector give it a very Silver firm turn to make sure that it is very tight Button When the cap nut is fully engaged over the threaded connector the cap nut may not cover all of the threads Knurled Knob Tighten both locking collars Secure the cable with the 2 velcro straps provided one on the lower stem close to the coil one on the upper stem close to the housing Leave just enough slack in the cable at the coil end to be able to rotate the Coil searchcoil a small amount about the bolt After full assembly and upon first use in the field chec
22. nce PINPOINT Press and hold to narrow down location of your finds 11 CONTROL PANEL SEN YA T GND liet GRAB 7 CONTROL KNOBS ARE AS FOLLOWS 1 SENSITIVITY a Click right to turn on Click left to turn off b Turning the knob clockwise increases the detector s sensitivity the higher the sensitivity the deeper targets will be detected and the more likely the detector will be to detect very small targets c As you turn the knob notice that the SETTING value at the bottom right of the screen will display your current sensitivity setting d The sensitivity has two ranges From 0 to 70 the sensitivity increases on a linear scale Above 71 the sensitivity threshold level starts changing At values greater than 70 some internal circuit noise will be noticed The higher the number the higher this background static will be Many seasoned detectorists prefer to operate at high sensitivity level with the accompanying noise They call this working into the noise When some background level of noise is audible small changes in the volume and tone will denote the presence of buried metal 2 DISC AT AUTOTUNE a Click counterclockwise to the AT icon to enter the AutoTune mode b This is the detector s most sensitive mode of operation c Itis a motion mode of operation the coil must be in motion to detect metal d Autotune mode induces a hum whose pitch and volume vary with the size of the target L
23. nt ways to group target types by tone Your selection depends on personal preference and search objectives For example coin shooters usually select d3 or d4 Relic hunters might select d1 or d2 depending on search area conditions In Auto Tune mode the TONES button allows the user to vary the pitch of the base tone See page 18 for a detailed description of the tones provided for each selection NOTCH Selective Target Inclusion or Exclusion The purpose of the NOTCH function is to change the detection status of a target category e If a category was not eliminated from detection before being notched then notching the category will eliminate it from detection e If a category was eliminated from detection before being notched i e the category s icon was not illuminated then notching the category will return the category to detection Upon each press of NOTCH a target icon will flash Each subsequent press will move the flashing icon to the right The following target categories can be notched in or out lron Foil Nickel Tab S Cap Zinc After the Zinc category pressing NOTCH will exit the NOTCH function To select a category for notching press NOTCH until the desired icon flashes After a few seconds the flashing will time out and the current target category will be notched Practice pressing NOTCH a few times and its function will become obvious The NOTCH feature is not available in Auto Tune Mode
24. procedure with the Gnd Grab touchpad 1 Turn the detector on and select AT Auto Tune mode 2 Sweep searchcoil across ground to find a clear patch of ground with no metal present 3 Rotate SENS knob to point where you hear a slight background hum 4 Press and hold the GND GRAB touch pad and pump coil over clean ground Note pump coil from within 1 of ground to 6 8 above ground 5 When the ground value settles down to only one or two numbers in variation release the GND GRAB touch pad while still pumping the coil Note that the Audio Response to the ground changed and Evened Out when you released the button Also note that the Ground setting changed After balancing you can hunt in Auto Tune or return to Disc Mode The most accurate GROUND value is the value displayed when pumping the coil over the ground in an area free of metal Understanding ground conditions assists the user in setting up the machine knowing when to readjust ground balance and in understanding the responses of the machine while searching This detector provides two kinds of ground data 1 the amount of mineralization the greater the amount of mineralization the greater the loss of detection depth 4 ID accuracy this loss is more pronounced in Discrimination Mode 2 the type of mineralization which affects mostly where the ground balance should be set Ground Balancing continued on next page 15 GROUND BALANCING Techni
25. sing a Nickel Metal Hydride rechargeable battery The battery compartment is located on the back side of the housing Slide the battery door to the side and remove it to expose the battery compartment BATTERY LIFE Expect about 20 to 25 hours of life from a 9 volt alkaline battery Rechargeable batteries provide about 8 hours of usage per charge SPEAKER VOLUME AND BATTERY CHARGE You may notice the speaker volume drop while one battery segment is illuminated With one segment flashing low speaker volume will be very apparent For loudest speaker volume select 1 or 2 tones under the OF TONES menu selection BATTERY INDICATOR The 4 segment battery indicator has 3 stages of indication These indications are accurate for a 9 volt alkaline battery Segments Illuminated Battery Voltage 4 segments more than 8 5 volts 3 segments more than 7 5 volts 2 segments more than 6 8 volts 1 segment flashing more than 6 4 volts After the 1st segment begins flashing expect the detector to shut off within 10 minutes A rechargeable battery will usually illuminate three to four segments throughout most of its useful charge But as soon as it drains to the 1 segment level it will then discharge very rapidly 6 QUICK START DEMONSTRATION I Supplies Needed e a Nail e a Zinc Penny dated after 1982 e a Nickel a Quarter ll Position the Detector a Place the detector on a table with the searchcoil hanging over the edge Or b
26. tive depth of an object is displayed in the center of the display with the SIGNAL strength indicator A more accurate depth reading is available in a no motion mode using PINPOINT These modes display target depth in inches This no motion mode does not require the coil to be in motion to detect metals The ability to hold the searchcoil motionless over the target also aids in tracing an outline of the buried object or in pinpointing the exact location of the object using techniques described in the pinpointing section Electromagnetic Interference EMI The searchcoil produces a magnetic field and then detects changes in that magnetic field caused by the presence of metal objects This magnetic field that the detector creates is also susceptible to the electromagnetic energy produced by other electronic devices Power lines microwave ovens lighting fixtures TVs computers motors etc all produce EMI which can interfere with the detector and cause it to beep when no metal is present and sometimes to beep erratically The SENSITIVITY control lets you reduce the strength of this magnetic field and therefore lessen its susceptibility to EMI You may want to operate at maximum strength but the presence of EMI may make this impossible so if you experience erratic behavior or false signals reduce the sensitivity Use with headphones not included 10 This detector is equiped with both a 1 8 and 1 4 headphone jack Any h
27. trols aa 11 MENU Selections Sensitivity daa GAS yee ae Sede kaaa NAA 12 Disc Autotune z4 aaa ada kE NAA WG RA 12 Ground Grab AA ananena 13 Frequency daan mace AA outa ee aa AA 13 Number of TONES 228 coska ak Dodd Baal al Baa 14 NOICH aaa ne twa eatin ee os Se eee AA 14 Ground Balancing o2ec 4 s2e ved what AA 15 16 Ground EO NANG nata naa ese wee ke 16 18 Audio Target ID 3 ease UE daka Pose tea ees pee GA 18 Depth and Target Display 19 20 SearchTechniques a 21 Target Pinpoint 4 isa ak Sosa a eer AA 22 Unit Specifications ae c2 yews teak Seda Seale ease ne 23 Code of BINiGS S040 PA AA NA 23 Waranty 2s Fete cams daan Ge ieee gh Tanda GD eee 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 RELIC A relic is an object of interest by reason of its age or its assoc
28. was Fill in the holes 5 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 23 TREASURE HUNTER S CODE OF ETHICS e Always check Federal State County and local laws before searching e Respect private property and do not enter private property without the owner s permission e Take care to refill all holes and try not to leave any damage e Remove and dispose of any and all trash and litter found e Appreciate and protect our inheritance of natural resources wildlife and private property e Act as an ambassador for the hobby use thoughtfulness consideration and courtesy at all times e Never destroy historical or archaeological treasures e All treasure hunters may be judged by the example you set always conduct yourself with courtesy and consideration of others 5 YEAR LIMITED WARRANTY The Omega metal detector is warranted against defects in materials and workmanship under normal use for five years from the date of purchase to the original owner Damage due to neglect accidental damage or misuse of this product is not cov ered under this warranty Decisions regarding abuse or misuse of the detector are made solely at the discretion of the manufacturer Proof of Purchase is required to make a claim under this warranty Liability under this Warranty is lim
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