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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 association with
the past.  Many relics are made of iron, but can also be made of bronze
or precious metals.

IRON

Iron is a common, 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

3

Summary of Contents for 4000

Page 1: ...o 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 ...

Page 2: ...fying Buried Objects 8 Size and Depth of Buried Objects 9 EMI 9 How To Work The Controls 10 MENU Selections Sensitivity 11 Disc Level 12 Notch 12 13 Volume 13 MODE Selections Discrimination 14 All Metals 14 PinPoint 15 Target Identification 16 17 Depth And Target Display 18 Trouble Shooting 19 Code of Ethics Back Cover Warranty Back Cover ...

Page 3: ...ron 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 ...

Page 4: ...ble upright posture with your arm relaxed at your side and the search coil parallel to the ground in front of you 5 Wind the cable securely around the stems 6 Insert the plug into the matching connector on the back of the detector body Be sure that the key way and pins line up correctly 7 Tighten both locking collars 8 Secure the cable with the 2 velcro straps provided one on the lower stem close ...

Page 5: ...removed from the aluminum tube Arm Rest Strap optional accessory The strap is available for purchase as a separate accessory Some users prefer to use the strap when swing the detector vigorously in order to hold the detector secure against the arm The detector can also be used without the strap with no compromise to detector balance and stability under most conditions Hand grip Nut Screw Search Co...

Page 6: ... per charge SPEAKER VOLUME AND BATTERY CHARGE You may notice the speaker volume drop while one battery segment is illuminated With only the battery outline visible low speaker volume will be very apparent BATTERY INDICATOR The 3 segment battery indicator has 3 stages of indication These indications are accurate for a 9 volt alkaline battery Segments Illuminated Battery Voltage 3 segments more than...

Page 7: ... detected Medium Tone Zinc Penny Nickel High Tone Quarter b Motion is required Objects must be in motion over the searchcoil to be detected in this mode V Press once to enter the DISC LEVEL program Then press four times VI Wave the nickel and zinc penny a Neither coin is detected VII Press the to toggle down to NOTCH Then press three times a 5 reappears on the display VII Wave the Nickel a The nic...

Page 8: ... you want to find All soils differ and can differ greatly in the type and amount of ground minerals present The Delta has a preset gound eliimination setting No user adjustment are required 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...

Page 9: ... 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...

Page 10: ...t button to actuate PINPOINT at any time Press or Buttons to CHANGE THE SETTING of the active menu item The active menu item is the Highlited line on the left side of the display POWERING UP Press The detector always starts in the DISCRIMINATION mode Motion is required Default sensitivity is at about 70 of maximum 08 All target categories except iron are illuminated meaning that all metal objects ...

Page 11: ...ighting 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 HOW DEEP WILL IT GO The Delta Metal Detector will detect a coin sized object like a quarter to a distance of about 11 from the searchcoil at maximum sensitivity Large metal objects can be detected to a depth of several feet ...

Page 12: ...ries IN or OUT while the NOTCH line is highlighted Whereas the discrimination feature eliminates all categories sequentially from detection the NOTCH control allows you to selectively include or exclude target categories from detection With each press of or the notched category moves across the display screen As you move the position of the notched category you are changing the detection status of...

Page 13: ... is highlighted use and to change the speaker volume The default volume setting is 8 Maximum is 10 Minimum is 0 volume off At levels 1 2 and 3 high tones will be inaudible or barely audible The speaker volume will diminish as battery voltage drops For maximum speaker volume use 1 or 2 tones as the low and bass tones generate the loudest sounds Volume can be set while in either the DISCRIMINATION o...

Page 14: ...ication system will identify targets similar to the discrimination mode except that target rejection is not possible in any All Metals mode There are two different All Metals Modes identified as A1 and A2 The best All Metals mode for you to select depends on the ground conditions where you are hunting A1 has more default sensitivity about an inch more on a coin sized object but will sound off over...

Page 15: ...o trace an outline of such large objects Narrow It Down To further narrow the field of detection position the searchcoil near the center of the response pattern but not at the exact center release and then quickly press and hold it again Now you will only hear a response when the searchcoil is right over the top of the target Repeat this procedure to narrow the zone even further Each time you repe...

Page 16: ...kels steel bottle caps Newer pennies post 1982 are minted from zinc Larger gold pieces small brass objects and most bottle screw caps Most recent vintage non US coins Pull tabs old style some new style HIGH TONE Silver and copper coins large brass objects Older pennies pre 1982 were minted from copper Dimes quarters half dollars silver dollars Susan B Anthony and Sacajawea dollar coins Flattened a...

Page 17: ...ent number on each pass The angle of the coil relative to an object may also influence target identification If waving coins over the searchcoil for practice wave with the flat side parallel to the searchcoil this is the position you will most often find coins buried in the ground 2 Digit TARGET IDENTIFICATION Values Some Typical Values Numeric Common for Common Category Value Range Objects Object...

Page 18: ...r will register as foil A small broken piece of pull tab may also register here 5 Most newer pull tabs from beverage cans the type intended to stay attached to the can will register here Many gold rings will also register here ALUM Older pull tabs which always detached completely from the can register here Many medium size gold ring also register here ZINC Newer US pennies post 1982 and Canadian 1...

Page 19: ...al Reduce sensitivity electromagnetic until erratic interference signals cease Constant low tone Discharged battery Replace battery or constant repeating tones Wrong type of Use only 9V battery alkaline battery or rechargeable LCD does not lock Multiple targets Move coil slowly on to one target ID present at different angles or detector emits Highly oxidized multiple tones target Sensitivity set R...

Page 20: ...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 limited 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 NOTE TO FOREIGN COUNTRY CUSTOMERS This warranty m...

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