Fisher M-SCOPE CZ-3D User's Manual
Contents
1. Treasure Hunters Code pg Battery Fes eub saVE D E dE pg Specific alons oae pg ON NM N N ND NY ND NY m m CON O Ch A A CQ ABOUT YOUR DETECTOR Your CZ 3D is an extremely advanced and sophisticated instrument It 15 maximized for a very specific function finding amp properly identifying older era coins at older sites Simply select the enhance mode with the utilization of the salt enhance switch to find more rare coins The CZ 3D was designed to find more good metals such as brass bronze copper silver and certain gold reporting it as a high tone In addition a fourth tone has been added to distinguish between the midtone heard on round amp square pull tabs and foil this enhances your ability to recover gold jewelry With this detector performance and ID can be further enhanced by a slower coil sweep speed more so than previous CZ models especially in trashy areas Read this instruction manual thoroughly practice often and you will be ready for some exciting treasure hunting Drop us a line if you have any questions comments or good finds to tell us about In the meantime Happy Hunting Fisher Research Laboratory CONDENSED OPERATING INSTRUCTIONS FACTORY PRE SET TURN ON AND GO MARKS Your CZ 3D 15 fairly simple to operate especially when compared to other target ID machines2. Depth is also determined by the size shape and conductivity of the target as well as the sensitivity setting of the CZ 3D 17 PINPOINTING PUSHBUTTON PINPOINT MODE Target location Is quick and easy using the push button Pinpoint mode You do not have keep the moving get a response in this mode 1 Once the presence of a target 5 indicated by the beep beep of your CZ 3D simply move the coll away from the target area and with the coil lightly on the ground or very close to it press and hold the PINPOINT button It doesn t matter which mode you re searching in Autotune or Target ID 2 As you bring the coil back into the target area still pressing the PINPOINT button the audio volume and pitch will increase and the meter needle will swing to the right 3 When the needle pitch and volume are at their highest points stop the coil and move it forward and backward a couple of times again stopping over the strongest response 4 Repeat one more time side to side and then front to back keeping the PINPOINT button pushed in and stopping over the spot where you get the maximum volume pitch and meter reading Your target should be directly below the center of your search coll With a little practice you ll find that you don t even need to look at the meter unless you want a depth reading NOTE For quick and accurate pinpointing of strong signals from large or shallow targets push and hold the pinpoint
3. Your CZ 3D however will alert you to the fact that the target is big and shallow and can not be accurately identified Big deep targets however will usually be classified as a coin Also be aware that large coins on 1 2 SEARCH MODES 10 11 12 13 14 15 the surface may set off the bell fone The optional smaller 5 inch coil is more likely to overload than the standard 8 inch coll You may also note that some square tabs ID as round tabs and vice versa Because of the wide variety of sizes shapes and conductivity of the many pull tabs manufactured over the years there is overlap as far as identification goes Small pieces of tabs or aluminum are often misidentified The tail of a round tab for example may ID as a nickel However most tabs and most of the items on the CZ 3D meter face will be identified correctly Now increase the DISC control to 1 You will find that the CZ 3Drejects the smalliron targets and nolongerresponds either with an audio tone or needle deflection Continue to increase your DISC control noting that with each successive step up you reject more and more targets At DISC lt Afor example you are in a coins only mode ignoring iron tabs and foil while accepting and identifying most nickels zinc pennies and silver clad and coins the maximum DISC level of 6 the CZ 3D wil ignore most all small targets except silver clad zinc and copper Coins Now
4. real critical It is offen desirable to detune your target by pressing the button when the search coll is very close your target and either on the ground or slightly above it When taking a depth reading however it is important that the coil be placed lightly on the ground at least twelve inches away from the target or any other metal before pressing the PINPOINT button Also remember that while you can pinpoint just about any size target depth reading Is only accurate for coin size targets TARGET RECOVERY Once you have identified and pinpointed a target your objective is recover it quickly and neatly leaving virtually no trace of your excavation There are almost as many ways to do this as there are treasure hunters Whatever works for you 15 good enough as long as you don t break any laws damage vegetation or leave uncovered holes Generally speaking beachcombers do little if any damage to the environment while recovering targets However if you plan to use your CZ 3D on lawns or in parks your target recovery method can be very important Two of the most successful methods are illustrated in a separate booklet Origin of the M Scope Target Recovery enclosed with your detector 1 Use headphones You ll hear fewer distracting sounds and more target sounds And you ll find more 2 It s always a good idea to walk slowly and overlap your sweeps But if you re searching large expanses of new territory you may
5. Even so we strongly recommend that you read this entire manual You ll be able to tune your CZ 3D your specific needs and conditions A good understanding what to do and why will lead you to more finds If you can t wait any longer and you re an experienced detector User here s some quick instructions get you going 1 Set all the controls to the red numbered Turn On And Go marks GROUND 5 DISC 4 SENSITIVITY 3 MODE ENHANCE VOLUME 5 This puts you in a coins only mode and you re ready to start searching Keep in mind that the GROUND setting of 5 is probably not the optimum setting for the ground you re searching and that s why the sensitivity level is set low to reduce false signals caused by ground mineralization 2 If you re using headphones adjust the volume controls for a comfortable volume when the coil is passed over a large shallow object 3 Walk slowly overlap your sweeps and keep the search coil moving Remember you are in a motion search mode and the coil must be moving at least slightly to detect a target 4 When you get a good repeatable signal pinpoint the target by placing the coil on the ground away from the target pushing and holding the pinpoint button and then bringing the coil back over the target 5 Once you ve pinpointed the target note the approximate depth reading on the meter then identify it by releasing the pinpoint button and moving the coil side to side in sho
6. Large metal structures your digging tool metal in shoes and your coil cable hanging loose above the coll 24 FALSE SIGNALS Figure 8 TARGETS THAT AREN T THERE Coin lying at an angle or on edge Long ferrous object nail Large deep target water pipe MAINTENANCE Your CZ 3D doesn t require a lot of care It s built with high quality materials but there are a few things you should do to keep it in peak operating condition 1 If you re not going to be using it for a while take the batteries out Acid damage caused by leaking batteries can be severe Avoid extreme temperatures Don t leave it inside closed car sitting in the sun or even worse the trunk of a car If you scrub the search coil on the ground you ll eventually wear through the bottom of the coll Replacement coils are expensive Instead invest in coil cover They re cheap Keep your CZ 3D dry and clean If you ve been working in or around salt water or dust wipe it down with a damp cloth and dry it with a hair dryer low or no heat or dry cloth Remove and clean the lower stem Keep the lock nut free of sand and dirt TREASURE HUNTERS CODE OF ETHICS LO LETS PRESERVE OUR TREASURED SPORT Laws governing the use of metal detectors are becoming more and more common In many countries the use of metal detectors is illegal or severely restricted Don t let this happen in your are
7. Yes SD COKE Yes 4 tones plus bell tone for large shallow targets Universal Arm Rest Detector Stand 28 SPECIFICATIONS ICT hoe Concentric Co planar Spider 8 Shielding 100 ESI Interchangeable Coil covers hard carrying case 10 1 2 Spider coil 5 search coll carry bag holster Fisher phones stereo phones NOTES 1 Subject improvement or modification without notice 2 Approximate 3 The CZ 3D disassembles to fit into an optional carrying case measuring approximately 6 x 21 x 15 4 The CZ 3D Fourier Domain Signal Analysis transmits multiple frequencies simultaneously and processes two received frequencies for deeper target ID in mineralized soil 5 VCO Voltage Controlled Oscillator Volume and frequency increase as target is approached for pinpoint accuracy 6 Ihe CZ 3D is a motion detector in the AUTOTUNE and Target ID modes The search coil must be moving at least slightly to detect a target For maximum performance and battery life always use Alkaline Batteries 8 Compensates for salt water and sand minerals simultaneously 9 Volume control limits loud target response amplifies faint targets when level is set above 5 10 ESI Electro Static Insulated to eliminate
8. battery door If either or both of the batteries are installed incorrectly the CZ 3D will not turn on The instrument will not be damaged 4 Finger tighten the screws down snugly Do not use a screwdriver or other hand tool Figure 9 BATTERY REPLACEMENT SPECIFICATIONS EIN EI EXT CIOS eee t a Rs dac edi Gellelori le LM 41 WEIGHT 3 7 Ibs COMMON 1 5 Ibs Hande dnd Go PETRI 2 2 105 I n i 1 Multiple Frequency Transmit amp Dual VLF Receive 5 KHz and 15 KHz 2 Target Response NUS 200 Hz LO 350 Hz MID LOW leor e 450 Hz MID bem 1 KHz HI Auto tone 500 Hz 1 KHz VCO Pinpoint Depth 500 Hz 1 KHz VCO OPERA UNG MODE s Auto Tone VLF Motion 5 all metal with threshold tone Target ID VLF Slow Motion silent search discrimination Meter Lock 7 categories PINPOINT DEPTH VLF all metal no motion UP Ce ed EE Drop in NO wires Yes DO Two 9 Volt Alkaline ERR 10 20 hours FEATURE Manual Ground Adjust Yes Manual Threshold Tuning Auto tune mode only Wet Sand Operation Yes 8 Handle Mount Hip Mount Yes Audio Output Jack Stereo Headphones Optional Faint Target Audio Boost
9. certain types of false signals 29 FISHER J QUALITY Fisher detectors are QUA for their quality construction In the Fisher tradition each and every detector is hand crafted with pride e PERFORMANCE Since 1931 treasure hunters worldwide have relied on Fisher Proven in the field durable dependable deeper e REPUTATION Dr Fisher invented the first patented metal detector over 70 years ago Today Fisher continues to set the standard by which all detectors are judged eSERVICE Fisher is committed to providing you our valued customer with superior service Each and every instrument is rigidly tested and carefully insoected during assembly and before shipment Should you have any questions or problems contact FISHER RESEARCH LABORATORY 200 West Willmott Road Los Banos California 93635 tel 209 826 3292 fax 209 826 0416 www fisherlab com info fisherlab com EXPORT DEPARTMENT 280 State Street Suite 202 North Haven CT 06473 USA Tel 203 230 4130 Fax 203 248 8093 8730019 email fishereexportdept com
10. point Target ID mode with the DISC control set at 4 Set your SENSITIVITY control Only experience will tell you how to set it in every situation but you ll probably want to run it as high as you can Recommended starting point SENSITIVITY 5 If you re in the Autotune mode set if so that you can just barely hear a slight audio hum Adjust your VOLUME control Remember that a setting above 5 will amplity the response of faint targets so they sound like a shallow or large target Some searchers prefer not to use it above 5 so the audio response will give them some idea as to the depth and or size of the target Recommended starting point VOLUME 10 If you re using headphones adjust the headphone volume controls for a comfortable not too loud response over loud targets Once you ve got your controls properly set begin your search by walking slowly and sweeping the search coil in a tight semicircle Keep the coil parallel to the ground and as close to the ground as practical This is extremely important for maximum coverage and depth If you re searching on a lawn you may set the coil ight on the grass and slightly scrub it Overlap your sweeps by at least 50 Remember that your coil s search pattern is conical and if you don t overlap each sweep you ll miss the deeper targets Search in a methodical manner Pay close attention to where you re going and where you ve been Keep the search coil mov
11. want to walk a little faster and not overlap your sweeps as much until you start making a few good finds Then slow down overlap your sweeps and cover every inch of ground 3 In trashy areas to reduce the masking effects of trash on nearby good targets use a shorter and slower sweep pattern Also the optional smaller 5 inch search coll will zero in on good targets closer to trash 4 When in doubt dig If your CZ 3D can t quite decide whether a target is good or bad dig it up 5 Good things offen come in twos Or even threes Once you ve recovered a good target always recheck the hole for a second signal and carefully search the immediate area by walking slowly around the hole two or three times overlapping your sweeps in an ever widening circle Always dig every suspicious sound in the vicinity of a good find 6 Recheck your hole even if your find was trash Good targets are offen found beneath the bad ones 7 Practice Practice over known targets Practice ground balancing Practice pinpointing Reread the appropriate part of this manual if you re having problems NOTE Whichever method you choose remember that responsible treasure hunters take pride in their ability to leave soil and vegetation intact and undamaged RECOVERY TOOLS A heavy duty blunt screwdriver sturdy hunting knife or garden trowel are commonly used Made especially for the Hobby of Metal Detecting are several well designed sand scoops trowels a
12. D BALANCE METHOD A A Ee This will probably be your method of choice in all but the most difficult of ground conditions It s fast easy and accurate You can use this method in either the Autotune or Target ID mode 1 With your controls set as in the Turn On procedure GROUND control at 10 hold the search coil parallel and 6 12 inches off the ground Press the PINPOINT button and hold it until you ve completed step 2 Make sure you re at least three feet away from any metal objects 2 Still pressing the PINPOINT button lower the coil to the ground Starting at 10 rotate the GROUND control clockwise until you hear an audio tone Then back it off to the exact point where the tone disappears Release the PINPOINT button and you re ready to search NOTES 1 If you get an audio response as you first lower the coil with the GROUND control at 10 you re probably over a piece of metal Move and try again 2 If you get a sudden belltone not proceeded by an increasing audio response as you lower the coil you re probably in some very highly mineralized soil or sand In this case it s best to use the Bobbing method 3 If you don t get any audio response or just a very faint one as you rotate the GROUND control from 10 all the way to 0 you re probably in an area where there s very little ground mineralization Just leave the GROUND control at 10 and begin searching 4 Recheck your ground balance occa
13. FISHERZJ CZ 3D Deep Search 4 Tone Target 1 0 Metal Detector coing Maximized finding older at older sitea OPERATING MANUAL FISHER RESEARCH LABORATORY CONTENTS YOU DETECTION pg Condensed Operating Instructions pg Factory Preset Turn On And Go Marks pg Sening UD pops pg A COMI OL POMC T pg Turn On Procedure pg Ground Balancing aestu Sa n dev eine usd evi i MEC pg Pushbulron tiet oa e sao aee va E eau UE Do oe Nen dvds pg Bobbing The Search Coil Method pg TT pg Search Modes Auto Tune pg Search Modes Target 1 pg E E E pg Pinpointing Pushbutton Pinpoint Mode pg Pinpointing Target ID and Autotune pg ee Recovery
14. a ALWAYS get permission to hunt on private property ALWAYS leave site cleaner than you found it Take at least some trash with you or if you can take it all ALWAYS fill in your holes neatly whether you re in a city park or remote wildernessness Leave the land as it was before you disturbed it ALWAYS obey all laws relating to treasure hunting ALWAYS return valuable property if you can locate the original Owner ALWAYS do whatever you can to give the hobby of treasure hunting the good image it needs and deserves BATTERY REPLACEMENT ee Check your batteries frequently by clicking the SENSITIVITY control counter clockwise into the BATT test position The condition of the batteries will be indicated in two ways 1 An Audio Tone The stronger the better A loud high pitched tone indicates good batteries A weak low pitched tone indicates weak batteries 2 A Meter Reading Replace the batteries when the needle falls below gray BATT area Two nine volt transistor batteries are located in a compartment at the rear of the housing Always replace both batteries at the same time You may also use rechargeable Nicads but expect about 1 2 the battery life of an alkaline battery 1 Remove the battery door by loosening the two captive screws 2 Tilt the housing slightly and the batteries will slide out 3 Install the new batteries Make sure the contact end goesin first and that you match the polarity markings on the
15. an all metal mode In this mode the CZ 3D has a wider and deeper search pattern however it lacks the ability to discriminate 5 CONTROL PANEL or identify targets 3 PINPOINT DEPTH READING A three purpose spring loaded push button When pushed and held the CZ 3D goes into no motion all metal mode for precise pinpointing and approximate depth reading of coin sized targets This button is also used in conjunction with the GROUND control during the ground balancing procedure 4 SENSITIVITY BATT TEST In the extreme counter Clockwise position the battery condition is checked as indicated by a strong or weak tone and a meter reading When rotated clockwise sensitivity to targets as well as ground mineralization and electrical interference is increased When in the AUTOTUNE mode this control also acts as a threshold tone control 5 HEADPHONES This connector accepts most stereo headphones 6 MODE ENHANCE position for dry land or shallow fresh water hunting SALT position for wet sand ocean beaches or hunting in shallow surf 7 VOLUME OFF Power on off and volume control Volume is gradually increased from 1 to 5settings From 5 1010 loud target response is held constant while faint targets continue to get louder audio boost Figure 3 CONTROL PANEL 6 TURN PROCEDURE 1 Set your controls as follows GROUND 10 DISC 0 for normal use in target ID mode Set DISC to Auto
16. arget ID mode just leave the DISC control where it is 3 Move the just enough left right left across the target to get a good signal The meter needle should lock onto a target classification which in turn will agree with the audio response one of 4 tones 4 you no longer get a meter reading or audio response once you ve pinpointed the target then you re over something that falls below the DISC setting you ve chosen and the CZ 3D is rejecting it 5 Here s a quick and easy way to tell the difference between a small shallow piece of foil and a gold ring or other possibly good target without digging if you get a good solid FOIL ID set the search coil down close to the target and then whip it rapidly across the target just once with what can best be described as a flick of the wrist It the target disappears it s probably a small shallow piece of foil If not dig it up it could be that gold ring you re looking for Practice this over some foil until you get the hang of it 6 Don t be afraid to turn your sensitivity down True the higher the sensitivity the deeper your CZ 3D will go and the more you ll find But that s only under optimum conditions If you re getting a lot of false signals caused by electrical interference ground mineralization or dense trash lower your sensitivity If you have to back it down 4 3 or even 2 to eliminate the falsing doit That s what your SENSITIVITY control is for You l
17. ave to bend your elbow and the sooner your arm will get tired The CZ 3D 15 balanced for comfortable searching in a tight semicircle around the front of the operator EX SETTING UP 5 With the stem length properly adjusted wrap the loop cable tightly around the center section stem and secure it with the two Velcro straps Connect the cable connector to the control housing CAUTION Make sure that the cable is not pulled tight at the control housing and that you have enough slack at the search coil to adjust it to any angle 6 With the shaft length and coil angle properly adjusted you should be able to move into your search position as shown in illustration below by leaning forward very slightly and raising your arm still straight until the search coil is about 2 inches above the ground and 12 inches in front of your foot The search coil should be parallel to the ground and may have to be slightly readjusted at this point Figure 2 SEARCH POSITION Adjust the stem length and coil angle so the coil rests flat on the ground about 6 to 12 1nches in front of your foot Move into your search position by leaning forward slightly and raising the coil about 2 inches off the ground This should put the search coil out about 12 to 18 inches in front of your foot HIPMOUNTING 1 Disconnect the cable from the control housing and Unwind all but the last twelve inches from the stem Secure the lower end of the ca
18. ble with a Velcro strap at least twelve inches up from the coll 2 Slide the control housing off the handle by holding the handgrip with one hand and pulling the housing towards you with the other hand 3 Reconnect the cable to the control housing It is especially important that the cable connector be installed tightly to prevent false signals during hipmount use Tight but never tightened with anything but your hands 4 Put your belt through the slots on the underside of the housing 5 Left handers should wear the housing on their right hip and right handers on their left hip NOTE If you re working in shallow water you may want to hang the control housing around your neck or chest mount with Fisher s Chest Harness Just make sure you put it in a heavy plastic bag sealed tightly around the cable Remember the only thing waterproof about the CZ 3D 15 the search coil CONTROL PANEL 1 GROUND Used fo electronically cancel the effects of ground mineralization Proper use of this control will minimize false ground signals and insure that the CZ 3D is operating at its maximum potential in just about any ground condition including wet ocean sand 2 DISC In the through 6 position the CZ 3D is in the target ID mode which is a silent no threshold motion discrimination mode of operation with the ability to identify and then ignore reject oraccept many kinds of small metal targets In the AUTOTUNE position the CZ 3D is in
19. button with the coil very close to the approximate target area This will tune out most of your target so you will receive a response directly over 1t You may also try reducing the sensitivity level and or raising the coil so you can barely hear the signal For very weak signals make sure you press the PINPOINT button with the coil completely out of the target area You may also try moving the coil closer to the ground or increasing the sensitivity and volume levels 1 3 PINPOINTING TARGET ID AND MODES Pinpointing in either of the search modes 5 difficult and requires practice but with practice you should be able to get the hang of it Many CZ 3D operators don t even bother with the Pinpoint mode unless they want a depth reading In Target ID or Autotune simply use the same basic procedure for the Pinpoint mode moving the coil side to side and front to back over the target area stopping over the strongest audio response The only difference is that you should use as short stroke as possible 4 to 6 inches is plenty When you stop the coll you will lose the audio signal You MUST keep the coil moving at least slightly to determine the location of the strongest signal TARGET IDENTIFICATION Target ID with the CZ 3D is quick and simple Just keep in mind these four rules A You must be in the Target ID mode If you re searching in Auto tune switch over to O on your DISC control B For a
20. ccurate identification the center of the search coil must pass directly over the target C There are many good targets which are not classified by the CZ 3D As mentioned earlier gold rings for example may fall in just about any category except iron Gold nuggets depending on their size and shape may fall into just about any category the smaller nuggets falling on the lower half of the scale So if you re not just looking for U S coins you should test some sample targets to determine what level of discrimination you want to work at and what targets you want to dig D Your CZ 3D will correctly identify most small targets most of the time but it can be fooled Large targets uneven ground mineralization a good target lying next to a bad target and deep targets are sources of error Remember the CZ 3D is designed to ID small coin size targets only and even some of these may be deep bent damaged or corroded enough to give a false signal 1 9 TARGET IDENTIFICATION 1 Once you ve located a target pinpoint its exact location as in the Pinpointing procedure Since accurate ID is dependent on accurate pinpointing it 5 recommended that you always press the PINPOINT button rather than try to pinpoint your target in either the Autotune or Target ID mode 2 Once you ve pinpointed your target release the PINPOINT button If you re searching in the Autotune mode switch over to DISC 0 If you are already in the T
21. e it for accurate ID 11 If your target disappears when you go into the Pinpoint mode you ve probably tuned it out by pressing the button too close to the target or over another piece of metal Try again this time pushing the PINPOINT button over another piece of ground 12 Don t waste a lot of time digging holes for targets you can t find if your hole keeps getting deeper and wider cover it up and go on You may be over buried pipe or some other large deep target 21 DEPTH READING Your CZ 3D will give you a quick and approximate depth reading of coin size targets Usually within an inch 1 2 3 Place the search lightly on the ground at least twelve inches away from your target area Press and hold the PINPOINT button Still pressing the PINPOINT button bring the coil back over the target and pinpoint its location by stopping the coil over the point where you get maximum pitch volume and needle response Place the search lightly on the ground directly over the target and still pressing the PINPOINT button note the position of the needle over the depth reading scale For example if the needle 15 midway between the four inch and six inch marks your target 5 approximately five inches deep You will quickly realize that the depth reading procedure is just like pinpointing however there is one very important difference When pinpointing where or when you press the pinpoint button 15 not
22. hat an enlongated ferrous object such as nail will give you a double beep as you cross it from end to end and a single beep if you cross its center 7 Mostsilverrings will ID at the highest end of the scale If you have enough gold rings you will note that some fallin the round tab category some in the FOIL category some in the square tab category a few in the nickel category and very few in the remaining coin categories This is due to the fact that the combination of size shape and conductivity of a particular ring will almost always add up to a target that is electronically identical to either piece of foil pull tab or nickel Most metal detectors have difficult time separating gold rings nickels tabs and foil but the patented circuitry of your CZ 3D can easily tell the difference between nickels and most trash Better yet it will allow you to find many types of gold rings while completely ignoring at least some types of pull tabs and small pieces of foil 8 Note also the different audio responses a an iron target will give you low tone b foil a mid low tone tabs a medium tone d coins a high tone 9 When you go over a large shallow target the CZ 3D will respond with a distinctive belltone This is due to the fact that metal detectors can only identify small targets What usually happensis that the detector circuits will overload and identify a large target as good silver coin etc
23. ing at a comfortable rate Remember that the CZ 3D is a motion detector and responds only when the or the target is moving except in the Pinpoint mode Take your time If you walk too fast you can t overlap your sweeps and you ll miss a lot of ground If you swing your coil too fast you lose some sensitivity to deep and or small targets Figure 7 on the next page shows the CZ 3D search coil pattern and how it is affected by sweep speed ground mineralization and search mode SEARCHING Figure 5 SEARCH PATTERN When the stem length is properly adjusted the CZ 3D is balanced for sweeping 1n a tight semicircle Wide to the right for right handers Wide to the left for left handers Be sure to overlap your sweeps Figure 6 COIL ORIENTATION Keep the search coil parallel and close to the ground at all times Figure 7 SEARCH COIL DETECTION PATTERN 1 Minimum Depth d Very slow or fast sweep speed b Discrimination set at 6 2 Good Depth Moderate sweep speed b Discrimination set at 4 3 Maximum Depth Moderate sweep speed b Discrimination set at 0 4 Missed Target Many targets within range will not be detected unless you closely overlap your sweeps NOTE Unlike other metal detectors the discrimination level has little if any effect on the depth capability of the CZ 3D Note however that the all metal Autotune mode has a wider search pattern and may detect a little deeper
24. l be surprised at how much you might find in an area that would otherwise be unsearchable at high sensitivity levels 20 TARGET IDENTIFICATION 7 Set your discrimination at an appropriate level If there s very little trash in the area set it low say at iron discrimination and dig every good signal If there is a lot of trash present and you re mainly interested in coins set the discrimination level high you may even want to sacrifice nickels and zinc pennies in extremely trashy areas If you re looking for gold rings relics artifacts or small ancient coins you ll have set your discrimination level low The best way to find out how low is to bury some sample targets or just dig everything for awhile until you get a feel for which target classifications will be the most productive 8 Look for repeatable signals and don t waste time on disappearing or one way signals If you hear a good beep but can t repeat it when you go back over the target area or if it beeps in only one sweep direction it s probably a piece of trash something below your discrimination setting 9 If you re in arelatively non trashy area try searching in the Autotune mode and then identify your targets by switching to DISC 0 You ll find more and deeper targets this way 10 If you re having any difficulty pinpointing or identifying a target in the ID mode don t waste any more time Push the pinpoint button for quick pinpointing then releas
25. l so this will be the search mode of choice for prospectors TARGET ID SEARCH MODE When the DISC control is set in the through 6 position the CZ 3D has the ability to identify many types of small targets and depending on the discrimination level reject or ignore most of them To better understand just how your CZ 3D responds to different targets try the following 1 Scatter some sample targets such as coins rings pull tabs nails and foil on the ground at least 18inches apart Include some large targets as well jar lids soda cans eic 2 Set the DISC control at O SENSITIVITY at 5 MODE at ENHANCE VOLUME art 10 If you re wearing headphones reduce the volume to a comfortable level when you are over a large target 3 Ground balance the CZ 3D as in the Ground Balance procedure 4 Hold the search coil about two inches above and parallel to the ground and move it slowly back and forth across each sample Remember the coil must be in motion to 1 SEARCH MODES get aresponse Keep in mind that for accurate target ID the coil center must pass directly over the target 5 Note the resoonse you get over small targets For small iron or steel targets the meter needle will usually lock in the IRON category Most pull tabs foil nickels and the newer zinc pennies will also be correctly classified Silver coins copper coins and the newer clad coins will ID in the highest category 6 Note t
26. mall increments until the threshold hum remains the same or changes very little as the coil is lowered and raised B It will get louder as you lower the coil and go silent as you raise it Increase the ground balance level rotating the control counterclockwise in small increments until there is little or no change in the threshold level C Ihe hum will remain the same or if it changes slightly the change is the same whether you lower or raise the coil Your CZ 3D is properly ground balanced and you are ready to begin your search You have gone past the correct ground balance setting 4 With a little practice you should be able to ground balance quickly by bobbing the coil up and down in a continuous movement as you adjust the GROUND control with your thumb E BOBBING THE SEARCH COIL METHOD NOTES 1 If you get an audio response as you first lower the coil with the GROUND CONTROL at 10 you re probably over a piece of metal Move and try again 2 If you get a sudden bell tone not preceded by an increasing audio response you re probably in some very highly mineralized soil or sand Instead of lowering the coil to an inch or two above the ground as in step 2 above stop just before you hear the bell tone and ground balance as instructed It will then be necessary to maintain that coil height as you search 3 lf you don t get an audio response or if the hum stays the same no matter where you set the GROUND c
27. nd digging tools See your local dealer for more information FALSE SIGNALS A False Signal occurs when something sounds like a good target but 5 not Your CZ 3D does a great job of discriminating but bad targets with similar electrical characteristics can fool it Large pieces of trash or items very close to the search coll will occasionally sound good Experience Is the best teacher As you accumulate more hours with your CZ 3D you will soon learn how distinguish false signals Initially when you pass over target and get a good response you will find that crossing over the target once or twice more the signal will break up or completely disappear The following are some sources of false signals and the solution 1 Electrical Interference Caused by radio and TV towers power lines or other metal detectors SOLUTION Move farther away from the source slow down the sweep speed or lower the sensitivity 2 Highly Mineralized Soil Soils with a high iron or salt content SOLUTION Reduce the sensitivity raise the discrimination level readjust the ground adjust setting 3 Extremely Trashy Areas May result in a lot of chatter SOLUTION adjust the discrimination level orreduce the sensitivity In some areas a smaller coil will be beneficial to better achieve target seperation 4 Metal Interference The CZ 3D will pick up metal ABOVE and on the SIDE of the coil as well as under WATCH FOR
28. nickel Cent Square Tab mid tone Square Tab U S 3 Cent Silver Trash mid tone High Tone U S Half Dime real dirt scenario Trash mid tone High Tone Silver Dime or Quarter partial masking Trash mid tone High Tone e Shield Nickel 8 V Nickel no slight corrosion Trash mid tone High Tone Buffalo Nickel mild corrosion Trash mid tone High Tone 2 50 Gold Quarter Eagle Round Tab mid tone Square Tab 5 00 Gold Half Eagle Trash mid tone High Tone 10 00 Gold Eagle High Tone High Tone 20 00 Gold Double Eagle High Tone High Tone Many Non U S Coins Trash mid tone High Tone Noteworthy The older nickels that would previously read as a mid tone foil ID should now read as a high tone nickel ID All other items in this list will now read high tone audio with either zinc cent or high coins meter ID This is due in part to infinite variables such as ground mineralization multiple targets in close proximity tilted coins coins on edge or a combination thereof Happy Enhanced Hunting Thomas J Dankowski IH SEARCHING Good search techniques are as important to your success as having good detector 1 10 11 Make sure your CZ 3D Is properly ground balanced and the MODE switch is in the proper position SALT for wet ocean beaches ENHANCE for just about every other situation Decide which search mode you re going to use Target ID or Autotune Recommended starting
29. ontrols as you bob the coil up and down you re probably in an area where there s very httle ground mineralization Just leave the GROUND control at 10 and begin searching SEARCH MODES Your CZ 3D has two search modes 1 Target ID or 2 Autotune Both search modes are motion modes meaning the search coil must be in motion to detect a target 10 SEARCH MODES AUTOTUNE SEARCH MODE Set the DISC control to Autotune for very sensitive wide scan all metal motion search mode Since this mode responds to all metal targets and does not have the ability to identify or reject targets this will probably not be your normal search mode The Autotune mode does have some advantages however which make it useful to use in at least two situations 1 Non Trashy Areas Since the Autotune mode has a wider scan than the ID mode you re less likely to miss a good target when using Search in the Autotune mode until you find a target Pinpoint the target using the PINPOINT button and then switch the DISC control to O to identify it The DISC control is positioned so that you can switch back and forth between Autotune and 2 Highly Mineralized Soil or Sand The Autotune Mode is recommended for black or gray sand beaches or highly mineralized soil Under these conditions it may be necessary to lower the sensitivity level and sweep several inches off the ground Gold nuggets are generally found in highly mineralized soi
30. rt strokes over the target The meter needle will lock onto the appropriate target classification 6 Happy Hunting SETTING UP Drop in battery compartments Adjustable 8 inch Spider and cable connector at rear of non metallic search coll housing not shown lower stem Center Removable control section housing belt loop on underside of housing Foam hand grip Nylon wing nut Padded arm rest replacable Upper Duro Neoprene lock nut Lower bushings not lock nut shown Seven foot search cable Upper stem Built in stand Figure 1 FISHER CZ 3D The CZ 3D comes to you just about ready to use Take a look at the diagram above and familiarize yourself with the parts of the CZ 3D before proceeding 1 Unpack your new CZ 3D carefully Save the carton and inserts for future storage or shipment 2 a look inside the locknut on the upper stem Note the clear plastic locking pad on the left hand side and loosen the lock nut by rotating it fully counterclockwise 3 Slip the lower stem into the center section 4 Adjust the stem length using the guide pin amp stem lock nut and the coil angle using the nylon wing nut so the search coil rests flat on the ground about 6 inches in front of and slightly to the right of your right foot to the left of yourleft foot forleft handers Your arm should be straight and relaxed with the grip held loosely REMEMBER The longer the shaft the more you will h
31. sionally and make sure you haven t accidentally moved the MODE switch BOBBING THE SEARCH COIL METHOD A This method takes a little more practice but you may find It slightly more accurate with fewer false signals from ground minerals ee BOBBING THE SEARCH COIL METHOD 1 Set as in the Turn On procedure making sure the DISC control 5 at AUTOTUNE and the SENSITIVITY control 5 set so you can just barely hear a threshold hum Hold the search coil parallel and 6 to 12 inches over the ground and at least three feet away from any metal objects Do not use the PINPOINT button during any part of this procedure 2 Lower the coil to an inch or two above the ground and then quickly raise it Note that as you lower the coil the tone disappears then gets louder as you raise it and finally returns to normal when you stop it 6 to 12 inches above the ground Conversely if you set the GROUND control to 1 the threshold hum will get louder as you lower the coil and disappear when you raise it 3 Your objective now 5 to adjust the GROUND control so that there is no change or only a minimum change in the threshold hum as you move the coll Up and down Start by lowering the GROUND control to 9 Lower the coil and raise it again One of three things will happen to your theshold hum A It will fade again as you lower the coil and increase as you raise it Continue to lower the ground balance setting in s
32. switch the DISC control to the AUTOTUNE position and note the completely different kind of response No tone or meter identification just a solid smooth response over every target The chart on page 14 shows some of the responses you may expect over different targets and at different levels of discrimination As you progressively increase the discrimination level you eliminate more and more targets NOTE Due to the virtually infinite variety of sizes shapes and alloys of many good targets relics jewelry foreign coins etc they may be misidentified For example a Civil War mini ball may be identified as foil or a new Canadian coin as a rectangular pull tab 1 3 SEARCH MODES FIGURE 4 TYPICAL CZ 3D AUDIO AND METER REPONSES METER READING TEE _ SHARP NARROW gt RESPONSE NO BROAD RESPONSE SEARCH COL AUTO mm TUNE COPPER Ta PENNY 5 STEEL AUDIO RESPONSE 1 LOW TONE 2 MID 3MIDLO 2 MID 4 HI TONE BELL TONE SEARCH MODES M SUPPLEMENT A TOM DANKOWSKI S ENHANCED ID CHART e REAL WORLD OTHER Probable reading of what all other detectors will ID the specified target as in real dirt e REAL WORLD CZ 3D Most probable reading on the CZ 3D in enhance mode TARGET REAL WORLD REAL WORLD OTHER REAL WORLD CZ 3D Dirt exposed Indian Head Cent Trash mid tone High Tone 1857 1864 White
33. tune for deep search all metal Auto tune mode SENSITIVITY 10 MODE ENHANCE VOLUME OFF 2 Hold the search waist high away from any nearby metal 3 Turn the VOLUME control to 10 A brief bell tone 15 normal when you turn the VOLUME control on If you re in the Auto tune Mode you ll hear an audio threshold hum Lower the SENSITIVITY control until you can just barely hear it 4 If you re wearing headphones reduce the headphone volume controls to a comfortable level when the search is passed over a large shallow target GROUND BALANCING When your CZ 3D is properly ground balanced it will have only a minimum response to ground mineralization Precise adjustment of the ground control is critical The higher the degree of ground mineralization or sensitivity setting the more critical it is Once you adjust it in either the Autotune mode or Target ID mode you can switch back and forth between the two modes without resetting it unless you increase the sensitivity level or go from dry sand to wet sand or vice versa You should also recheck your setting occasionally as you search since ground conditions offen change rapidly If you have difficulty ground balancing try reducing your sensitivity level or moving to another spot just in case you are over a buried piece of metal In some areas of high ground mineralization you may not be able use the pushbutton method 7 PUSHBUTTON GROUN
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