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Chapter 3 DFX

™

Quick Start

Live Search Screen Samples

+19

-95

+95

+78

-95

+95

+84

-95

+95

+93

-95

+95

-95

+95

-95

+95

-18

-95

+95

+10

-95

+95

FOIL

+30

-95

+95

+48

-95

+95

Nickel, or
possible ring.
Sometimes a
small (or half)
pull tab will
produce this
indication

Quarter. Could
be a worn half,
or large silver
jewelry.

Penny or a
dime. If the
screw cap and
penny ICON
are displayed,
the target
could be an
Indian Head or
zinc penny.

Dollar. Large
non-iron can
also produce
this indication
(large brass jar
lids).

IRON. REJECT
targets will
produce only a
SignaGraph

VISUAL DISC.
is ON

IRON. +95
ACCEPTED or
VISUAL DISC.
OFF

IRON. -18
ACCEPTED or
VISUAL DISC.
OFF.

Foil. Possible
ring. +10
ACCEPTED or
VISUAL DISC.
OFF.

Pull tab.
Possible ring.
+30 AC-
CEPTED or
VISUAL DISC.
OFF.

Ring. Possible
pull tab. +48
ACCEPTED or
VISUAL DISC.
OFF.

Содержание DXF

Страница 1: ...rac Inhibit 33 11 Coarse G E B 34 12 Fine G E B 35 Discrimination 36 13 Disc Edit 36 14 Block Edit 38 15 16 Learn Accept Reject 39 17 Recovery Speed 40 18 Bottlecap Reject 41 19 Hot Rock Reject 42 20 Sweep Speed 43 21 Ground Filtering 44 Display 45 22 Visual Disc 45 23 Icons 45 24 V D I Sensitivity 46 25 D C Phase 47 26 Accumulate 48 27 Average 48 28 Fade 49 Preamp Gain 50 29 Preamp Gain 50 Multi ...

Страница 2: ...SE TO SCROLL CURRENT SETTINGS OR MAKE ADJUSTMENTS GROUND BALANCE ONLY WHILE SEARCHING HOLD THE TRIGGER AND PRESS BATTERY CHECK WHILE SEARCHING HOLD THE TRIGGER AND PRESS REVERSE DISPLAY WHILE SEARCHING HOLD THE TRIGGER AND PRESS PRESS FOR LIGHT DARK BACKGROUND RELEASE TRIGGER BACKLIGHT IN SEARCH MODE HOLD THE TRIGGER AND PRESS RELEASE TRIGGER PUSH AIR GND BALANCE IN SEARCH MODE PRESS TO RE AIR GND...

Страница 3: ...rom shipping carton and check the assembly page to make sure all parts are present 2 There are rubber washers between clevis lower rod and loop ears Use only nonmetallic washers fiber bolt and thumbnut to secure loop search coil to clevis lower rod 3 Unlock S rod camlock and insert clevis lower rod into curved S rod so that stainless steel spring clip buttons line up and lock into one of the adjus...

Страница 4: ...y pulling down on the front of each of the two latches on the bottom of the control box releasing the catch and hinging open the door The non rechargeable battery holder can use many different types of batteries including rechargeable This holder is designed for standard size penlight AA batteries which should be 50 mm 10mm Battery lengths shorter than this will likely cause problems with this pow...

Страница 5: ...the QUICK charge setting will damage the system CAUTION Battery 802 5211 Using the Standard Battery Holder 1 Slide open the battery holder lid decal side of battery holder by applying gentle upward pressure on the tab of the door so that it unlocks Slide the door away from the battery box exposing the cell positions 2 Remove any old cells from the holder Note the and positions of each cell and the...

Страница 6: ...tion However before charging with the QUICK charge setting determine battery condition by inserting battery into the instrument and turning the instrument ON If the instrument will not turn ON or if voltage tests eight volts or below charge five hours with the QUICK charge If the battery voltage tests any other voltage refer to the Charging Hours chart above for proper QUICK charge time 2 To charg...

Страница 7: ...when the battery reaches eight volts Like a personal computer there are times such as low battery conditions when the microprocessor of a metal detector becomes out of sequence with the rest of the circuitry This is often noted by pecu liarities in the nondiscrimination or pinpointing TRIGGER squeezed modes Symptoms may be blaring or silent non discriminate or pinpoint modes depth indication inacc...

Страница 8: ...t appears asking you to lower the search coil loop to the ground Press ENTER Ground mineral ization will be balanced out BEEP The last screen will be the live search screen You will hear the THRESHOLD hum Sweep the search coil over the ground and listen for a solid repeatable consistent beep then look at the display The icons tell what likely coin lies below V D I number chart on top of control bo...

Страница 9: ...loop is passed over metal that is likely trash the sound will be inconsistent Trash targets typi cally produce a shorter sputter type sound that is often broken or double in nature Place a steel pop bottlecap on the ground Pass the loop over it several times to become familiar with this sound at different loop sweep speeds Note that an aluminum twist off bottlecap cannot be used as it is a differ ...

Страница 10: ... loop over the target several times and look at the SignaGraph The SignaGraph auto matically clears itself FADE RATE so that it doesn t fill the screen with information from past loop sweeps An operator has limited time to look at the SignaGraph If you want to look at the information again sweep the loop over the target several more times The fading of the SignaGraph information can be slowed or s...

Страница 11: ...ewelry Penny or a dime If the screw cap and penny ICON are displayed the target could be an Indian Head or zinc penny Dollar Large non iron can also produce this indication large brass jar lids IRON REJECT targets will produce only a SignaGraph if VISUAL DISC is ON IRON 95 ACCEPTED or VISUAL DISC OFF IRON 18 ACCEPTED or VISUAL DISC OFF Foil Possible ring 10 ACCEPTED or VISUAL DISC OFF Pull tab Pos...

Страница 12: ...the DFX is a high powered 9 5 inch design This harmonically tuned loop s stron gest traits are in the detection depth and ground coverage areas If pinpointing becomes difficult or critical refer to the Advanced Pinpointing Tech niques on this page 10 5 1 2 9 6 3 0 1 2 9 6 3 0 DEPTH SCREEN DISPLAYED WHEN THE TRIGGER IS SQUEEZED SQUEEZE TRIGGER Advanced Pinpointing Techniques 1 Targets that are near...

Страница 13: ...tings discriminates rejects most common junk items like nails foil pull tabs and hot rocks and responds to most coins and large jewelry Use in lawns parks and play grounds where lots of trash rejection is desired Coin Jewelry less discrimination less trash rejection desirable because of the high degree of variance found in jewelry alloys More digging required Good program for lawns parks and playg...

Страница 14: ...ENTER again changes back to the original setting 56 TARGET VOLUME MIN MAX 56 TARGET VOLUME MIN MAX press ENTER press ENTER RECTANGLE AROUND THE TITLE MOVES TO THE SETTING USE ARROW KEYS TO ADJUST THE SETTING UP OR DOWN ADJUSTMENT EXAMPLE TIP To quickly increase to maximum hold ENTER and press ARROW up To quickly decrease to minimum hold the ENTER and press ARROW down SILENT SEARCH ON OFF TO CHANGE...

Страница 15: ...at feature adjustment screen last just prior to squeezing and releasing the TRIGGER for searching Then during searching press either ARROW to return directly to that adjustment screen Hot Key Shortcuts HOT KEYS will save time as they allow easy access from the search mode to the most needed adjustments They are painted on the bottom of the control box for field reference NOTICE HOT KEY shortcuts w...

Страница 16: ...ny time by saving new settings over a previously saved custom program EEPROM is a special type of computer memory made for this purpose Electrical Eras able Programmable Read Only Memory Chapter 4 DFX Basic Adjustments 1 SQUEEZE TRIGGER 2 PROGRAMS PG 1 3 COINS COIN JEWELRY JEWELRY BEACH PRESS ENTER FOR PRESET PROGRAMS MAIN MENU PG 1 1 PRESET PROGRAMS BASIC ADJUSTMENTS PRO OPTIONS PROGRAMS PG 2 3 R...

Страница 17: ...ant to keep it you can replace it with a new program using the same procedure as de scribed above The old program can only be erased when a new program is stored in that position 8 You can NAME a custom program and at a later date replace the program while maintaining the same name Develop the changes first to any pro gram then use the SAVE method which maintains the old name while storing the new...

Страница 18: ... MAX Tip Select the loudest comfortable level lower with headphones higher without Settings from 48 63 are available 23 AUDIO THRESHOLD MIN MAX 2 Audio Threshold The slight hum or background tone which is nor mally heard continuously during searching Select THRESHOLD with the ARROW controls and press ENTER The current threshold level will sound continuously The number designating the current level...

Страница 19: ...es select high TONE levels high num bers Settings from 0 255 are available 4 Audio Disc The ability of the detector to reject trash by producing different sounds for different types of targets Trash is rejected by going silent or producing a broken cut short sound Valuables are detected by a smoother more solid sound Select AUDIO DISC with the ARROW controls use the ENTER control to turn AUDIO DIS...

Страница 20: ...mode with SILENT SEARCH ON When SILENT SEARCH is ON the all metal pinpointing mode continues to produce a threshold This may not be noticed as once the pinpoint mode detunes for better target center locating the threshold is not present However releasing re squeezing and holding the TRIGGER with the loop at waist level a threshold will be noted Press ENTER SILENT SEARCH ON OFF TO CHANGE PRESS ENTE...

Страница 21: ...program will produce a lower pitched beep High pitched or low pitched beeps are directly determined by the discrimination settings An operator can select discriminate settings through the selection of an entire Program or by adjusting the accept and reject V D I numbers in the Pro Options under Discrimination EDIT All Metal Channel When the loop is not in motion or moved slowly all types of target...

Страница 22: ...her ARROW control Settings from 1 85 are availabLE 8 D C Sensitivity Used to select the sensitivity degree that the detector is responsive to signals while the detector is being used in non discriminate ALL METAL modes These are modes that do not require movement of the loop to respond D C SENSITIVITY fine tunes stability and pinpointing Select D C SENSITIVITY with the ARROW controls and press ENT...

Страница 23: ...n the BACKLIGHT on holding the TRIGGER and pressing MENU will bring up the BACKLIGHT adjustment screen Release the TRIGGER and press ARROW up to select a level you can see the display Squeeze and release the TRIGGER to continue 0 BACKLIGHT MIN MAX Tip Use only when needed and only as bright as needed for acceptable display visibility Backlight use will decrease battery life The brighter the level ...

Страница 24: ...ay need to use the EMERGENCY VIEW ING ANGLE PROCEDURE to see the display Select the program you desire use the ENTER control to enter Air Ground Balance then again use the EMERGENCY VIEWING ANGLE PROCEDURE if the display is unreadable VIEWING ANGLE is preset at average levels in the factory preset programs The display may be unreadable at either of the extreme settings in a particular environment ...

Страница 25: ...targets ON OFF 24 V D I SENSITIVITY Response intensity to produce a display indication 3rd V D I digit 86 and higher 25 D C PHASE Measurement of ground or metal target during pinpointing 26 GRAPH AVERAGING SignaGraph information collects over multiple loop passes 27 GRAPH ACCUMULATING Emphasizes common or predominate SignaGraph 28 FADE RATE Clears or fades noncurrent SignaGraph information bars PR...

Страница 26: ...es will only reappear if MENU is again pressed or at specific times during scrolling to offer short cuts From this point forward we will assume that you know how to use the MENU control the Arrow Controls to make a selection the ENTER control to enter or select that option the Arrow Controls to make adjustments and the MENU to exit Remem ber squeezing and releasing the trigger returns to a search ...

Страница 27: ...target center OFF When OFF the signal will remain original size giving some indication of its size and shape Manual shrinking is completed by squeezing and releasing the TRIGGER several times as the loop is passed over the target Manual shrinking can completely eliminate the target If the target no longer responds after manual shrinking move the loop away from the target squeeze and release the TR...

Страница 28: ... modes which are ordinarily non motion It is also known to produce some variations in the responses to hot rocks rocks more mineralized than the surround ing ground which change with different speed selections Only enough S A T SPEED required to maintain stability is recommended Typically normal coin searching requires slower lower number speeds beach hunting and relic hunting require slightly fas...

Страница 29: ...s Great for coin jewelry and relic search ing Can be used in combination with MIXED MODE 4 V C O Voltage Controlled Oscillator produces a higher pitched tone the stronger the target becomes Voltage Controlled Oscillator is a feature that will only work in the non discriminate modes When it is ON the stronger the response the higher the pitch of the sound An excellent aid in pinpointing V C O will ...

Страница 30: ...the same volume of response on all detected targets regardless of depth The use of MODULATION allows for the singling out of deep targets in the standard discriminate mode It may save time by eliminating the checking of each target with the depth indication in the pinpoint mode MODULATION ON OFF TO CHANGE PRESS ENTER Tips If you have excellent hearing and want to single out deep targets by their l...

Страница 31: ... Trac View When ON TRACK appears on right side of display when AUTOTRAC makes adjustments to the Ground Balance setting TRAC VIEW offers a way to observe Autotracking When ON TRACK will appear momentarily on the right hand side of the display just above the SignaGraph while AUTOTRAC is adjusting This information is valuable when attempting to determine an appropriate Trac Speed It may also be a va...

Страница 32: ...an result in the ground balance setting never catching up with changing ground TRAC VIEW is used to see how much tracking is occur ring Generally a faster higher number TRAC SPEED is needed for more consistent ground conditions Slower TRAC SPEEDS lower num bers is needed for more inconsistent ground conditions TRACK appearing every three to five sweeps of the loop is the ideal setting when the gro...

Страница 33: ...ght decrease in the thresh old as the loop approaches the ground in the all metal mode 0 AUTO TRAC OFFSET MIN MAX Tips Recommended only for experienced operators who fully understand ground rejection Settings from 10 10 are available G E B Trac section 10 Trac Inhibit Prevents AUTOTRAC from tracking the ground during target detection TRAC INHIBIT ON prevents the AUTOTRAC feature from altering Grou...

Страница 34: ...he Automatic Air Ground sequence must be avoided by squeezing and releasing the TRIGGER when and if the Air Balance instruction appears Air Balance instructions may appear during Basic Adjust ment or Pro Options selections following the manual adjustment When manually adjusting the Ground Balance it is necessary to make an adjustment in COARSE and or FINE then squeeze and release the TRIGGER The T...

Страница 35: ...255 represent a ground rejection level similar to a V D I number of 10 This V D I range from 95 to 10 represents the ground rejec tion range of this instrument If ground balance either automatic or manual occurs near the 255 COARSE setting significant loss in sensitivity can be expected to targets which indicate in the V D I number range of 1 to 10 However manual ground balance doesn t exactly wor...

Страница 36: ...y Preset Program is ENTERed all unsaved settings are overwritten by the factory recommended settings Only the Custom Programs will save your custom settings through Preset Program selections Accepting a wider range of V D I numbers will have an impact on detection depth particularly for very deep targets that are difficult for the display to identify Positive 95 is one of the most significant V D ...

Страница 37: ...nus 30 to 40 may not be practical While ACCEPTing these minus numbers a reduced sensitivity setting may help eliminate some of these small bits of unwanted foil ACCEPTing all V D I numbers will produce the best overall detection depth however with the amount of trash in most areas searching with no rejection is seldom practical TONE I D is a more practical choice The idea of discrimination is to A...

Страница 38: ...T REJECT ARROWS drag that ACCEPT REJECT status ENTER again changes ACCEPT REJECT AR ROWS drag that new ACCEPT REJECT status etc BLOCK EDIT not only saves time if large sections of the V D I target numbers are to be changed it also allows peace of mind in the certainty of how all the V D I numbers are set In the same amount of time it takes to view all the V D I number s current status in regular E...

Страница 39: ...for reject then use LEARN ACCEPT to accept only that specific target If using a standard program and a specific unwanted trash target is being detected use the LEARN REJECT to change the pro gram to reject it If you do not return to the LEARN selection screen and turn LEARN OFF the detector will continue to learn AC CEPT or REJECT every metal target it encounters Selecting LEARN OFF after you have...

Страница 40: ...wer RECOVERY SPEEDs do not work very well in high trash areas However they will have better responses on very deep targets Slower speeds also have more definitive discrimination sounds A custom setting needs to be found that suits the preferences of the individual and the conditions in the area As a general rule the closer together the metal targets are in an area the faster the recovery speed sho...

Страница 41: ...iron target is close to a good metal the high degree of bias against iron may cause the detector to cancel both responses Another disad vantage is that all targets iron and non iron tend to start sounding more broken at high levels of BOTTLECAP REJECT The operator needs to fine tune BOTTLECAP REJECT according to their preferences and the conditions being searched Some ground conditions make it dif...

Страница 42: ... target response beep or reject 95 and not hear a target like response from 95 target types The HOT ROCK REJECT features allows a com promise between total rejection or total acceptance of the 95 V D I indication Disc Edit Accept or Reject of 95 will only control the visual displaying of 95 with the Visual Discrimination feature ON To reject or accept 95 with the audio discrimina tion Audio DISC m...

Страница 43: ... metal detector s sweep speed is designed into the electrical circuit and not adjustable The SWEEP SPEED of the DFX is adjustable in all settings except a GROUND FILTER setting of 2 A GROUND FILTER setting of 2 has a fixed not adjustable sweep speed An adjustment range from 1 to 20 is available 1 is the slowest ideal best performing loop or search coil sweep speed 20 is the quickest ideal best per...

Страница 44: ...ain ing filters are contained within the computer soft ware allowing full user adjustment The DFX GROUND FILTERING has an adjust ment range from 2 through 6 At a setting of 2 SWEEP SPEED is not adjustable fixed Selection of 2 filters allows for the best perfor mance in high trash areas of medium to low ground mineralization Combined with the RECOVERY SPEED and BOTTLECAP REJECTION the DFX will pull...

Страница 45: ...s from appearing on the display The disadvantage is that much of the visual display information will not appear for you to interpret questionable target responses VISUAL DISC ON OFF TO CHANGE PRESS ENTER Display section Tips Typically you re not interested in the RE JECTed target information Eliminating it from appear ing reduces or cleans up the display information you must interpret ON is recomm...

Страница 46: ...ome unstable and the display indications unreliable Low ground mineralization is typically a good indication that high V D I sensitivity settings are appropriate Heavy mineralization or electrical interference are conditions where a lower V D I Sensitivity setting is appropriate This feature is designed to allow adjustment of the display stability However because the instrument s display and audio...

Страница 47: ...urn produces inconsis tencies in the relationships of these features When considering specific numbers it is important to know D C phase is provided by the 15 kHz channel without normalization The V D I scale is distorted expanded in the lower end of the scale foil nickel and compressed in te higher end of the scale copper silver D C PHASE ON OFF TO CHANGE PRESS ENTER Display section Tips In speci...

Страница 48: ...necessarily allow showing of all the available information on the SignaGraph It averages the information received and shows this average on the SignaGraph When used in combi nation with ACCUMULATE it has more informa tion to average which results in more accurate indications of trends FADE is suggested to clear the display of old information rather than excessive TRIGGERing Tips Most beneficial wh...

Страница 49: ...imum setting of 1 equals the least degree of fading A maximum setting of 14 selects a very quick fade rate The SignaGraph information will automatically clear from the graph quickly Ideally a Fade Rate should be selected that allows time to adequately view the SignaGraph information yet still clear the graph in a timely manner Tips Recommended for all but the SINGLE SWEEP mode Adjust the rate of F...

Страница 50: ... You may never encounter an area where maximum PREAMP GAIN can be used Electrical interference may make it difficult to receive an Air Balance at high PREAMP GAIN settings Selections such as MIXED MODE or AUDIO DISC OFF may not allow as high a PREAMP GAIN level as other selections This is normal as some of these modes naturally see more targets and ground and they may still provide superior perfor...

Страница 51: ...uency options are auto matically OFF To turn BEST DATA OFF requires the selection of one of the three remain ing methods In other words an operator never turns OFF a multifrequency method they simply select the desired method and turn it ON all other methods are automatically turned OFF The MULTI FREQUENCY selection in use appears continuously on the bottom of the LCD display during searching The ...

Страница 52: ...e advantage is gold jewelry and aluminum may be better sorted with higher resolution in this foil nickel range V D I NORMALIZED ON OFF TO CHANGE PRESS ENTER 32 V D I Normalization 1 FREQ 3 KHZ ON OFF TO TURN ON PRESS ENTER 33 1 Frequency 3 kHz 1 Frequency 3 kHz Operates at 3 kHz exclusively Provides for superior high iron mineral rejection and depth when salt is not present Also provides for bette...

Страница 53: ...ctory program to one of the EEPROM positions it is no longer a Factory Preset Program and thus will save for future use EEPROM stands for a special type of electronic memory chip Electrical Erasable Programmable Read Only Memory This memory chip allows the user to store up to four of their own programs for future use through battery changes and storage To use a custom EEPROM Program Simply 1 Turn ...

Страница 54: ...egory The only way to get all the jewelry is to dig all the aluminum lead and brass which can be tedious to the point of frustration in trashy areas Popular Performance modifications include Tone I D ON V C O ON Ground Filtering 2 for lower mineral areas 4 for more mineralized areas Auto Track Offset 2 Visual Disc ON D C Phase ON Re save any changes if future use is desired EEPROM DEMO Primarily a...

Страница 55: ...E ON OFF V D I NORMALIZED ON OFF 1 FREQUENCY 3kHz ON OFF 1 FREQUENCY 15 kHz ON OFF AUDIO G E B TRAC DISCRIM INATION DISPLAY MULTI FREQUENCY METHOD COIN RELIC PROSPECT JEWELRY BEACH COIN JEWELRY 56 23 231 ON OFF OFF 68 30 0 25 ON 5 OFF OFF ON ON OFF 8 0 ON A U T O A U T O 56 23 231 ON OFF OFF 68 30 0 25 ON 5 OFF OFF ON ON OFF 8 0 ON A U T O A U T O 56 23 220 ON OFF OFF 64 30 0 25 ON 5 ON ON ON ON O...

Страница 56: ... 14 PREAMP GAIN PREAMP GAIN 1 4 2 FREQUENCY BEST DATA ON OFF 2 FREQUENCY CORRELATE ON OFF V D I NORMALIZED ON OFF 1 FREQUENCY 3kHz ON OFF 1 FREQUENCY 15 kHz ON OFF AUDIO G E B TRAC DISCRIM INATION DISPLAY MULTI FREQUENCY METHOD EEPROM DP SILVER EEPROM HI PRO NOTES EEPROM DEMO EEPROM HI TRASH 60 15 231 ON OFF OFF 76 45 0 25 ON 7 OFF OFF OFF ON OFF 8 0 ON A U T O A U T O 56 15 231 ON OFF OFF 70 30 0...

Страница 57: ...s Hot Rock A rock which contains a higher concentration of mineralization than the surrounding ground Matrix Refers to the total volume average of ground penetrated by a metal detector Menu Series of listings and prompts on a visual display designed to aid the operator in feature selection Metal Metallic substances iron foil nickel aluminum gold brass copper silver etc Microprocessor An electronic...

Страница 58: ..._____________________________________________ ________________________________________________________________ Instrument Serial Number __________________________________________ Date Code ______________________________________________________ Original Purchase Date _____________________________________________ New Owner Name __________________________________________________________ Address _____...

Страница 59: ...keeping you up to date regarding White s ongoing research development The warranty does not cover damage caused by accident misuse neglect alterations modifications unauthorized service or prolonged exposure to corrosive compounds including salt Duration of any implied warranty e g merchantability and fitness for a particular purpose shall not be longer than the stated warranty Neither the manufac...

Страница 60: ... by quality service Our Factory Authorized Service Centers are factory trained and equipped They offer the same quality service as the factory Service before and after the sale is the cornerstone of our customer relations A Contact your Dealer There may be a quick simple fix or explanation that will prevent having to send the detector in for service B Double check the obvious such as batteries and...

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