Teknetics Delta 4000 Owner's Manual - User Manual

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METAL DETECTOR

OWNER’S MANUAL

ACCESSORIES

Teknetics

Padded Carrying Bag

Made of rugged double-stitched nylon construction. Includes
outside zip-pocket for extra accessories. –

CBAG-T

Teknetics

Camouflage Backpack -

TKCBACKPACK

Teknetics

Camo Pouch

Camo pouch with two inside pockets, belt included

. –

PCH-T

Stereo Headphones

True Stereo, compatible with all Teknetics

detectors, 1/4” jack with 1/8”

adapter, dual volume, coiled cable –

HEADT

Pinpointer

Pinpoint exact location of target with audio and vibration indication. No
assembly required, uses one 9V (not included).

– PINPOINTER

Teknetics

Gold Pick

Tempered steel head is 10” long, edge is 3-1/4” wide, overall length 19”.
Durable fiberglass handle, rubberized hand grip and powerful super magnet
attached to head. –

GOLDPICK

Replacement/Accessory Searchcoils

11” Biaxial Coil –

11COIL-TEK

10” Elliptical Concentric Coil –

10COIL-TEK

10” Biaxial Coil –

10COILDD-TEK

8” Concentric (Standard) Coil –

8COIL-7TEK

5” Biaxial Accessory Coil –

5COIL-TEK

Coil Covers

Specially made to protect your coil from abrasion and damage.
11” Biaxial Standard Coil Cover –

COVER-11DD

10” Concentric Coil Cover–

F70COVER

10” Biaxial Coil Cover –

2023190000

8” Concentric Coil Cover –

8COVER-7

5” Biaxial Coil Cover –

5COVER-BLK

Lesche Knife

Made from high quality heat-treated tempered steel. The ultimate digging tool.
Comes with a durable sheath.
12" in length with a 7" serrated blade –

LESCHE KNIFE

Teknetics

T-Shirt

100% cotton with Teknetics

Logo. Sizes: S, M, LG, XL & XXL –

TKTSHIRT

Teknetics

Stainless Steel Coffee Mug

- TKMUG

Teknetics

Camouflage Baseball Cap

(One size-fits-all) -

TKCCAP

Teknetics

Baseball Cap

One size fits all. –

TKCAP

Face Rain Cover

Neoprene cover to protect from weather

–

RAINCOV-DELTA

FOR COMPLETE DETAILS VISIT WWW.TEKNETICST2.COM • 1-800-413-4131

Gold
Prospecting Kits

MDELTA

REV.6

021115

Also available

with 11”DD coil

(Item# DELTA-11DD)

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.

Expect chatter or internal

noise at high sensitivity.

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 searchcoil away

from appliances such as computers,

televisions and microwave ovens. If

your detector beeps erratically, turn off

appliances and lights.
Also keep the searchcoil 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

Terminology  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Assembly  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Quick-Start Demo  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Basic Of Metal Detecting . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9

Ground Minerals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Trash  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Identifying Buried Objects  . . . . . . . . . . . . . . . . . . . . . . .8
Size and Depth of Buried Objects  . . . . . . . . . . . . . . . . .9
EMI (Electromagnetic Interference)  . . . . . . . . . . . . . . . .9

Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Operation and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-15

MENU Selections . . . . . . . . . . . . . . . . . . . . . . . . . .11-13

Sensitivity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Disc Level  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Notch  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13
Volume  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

MODE Selections . . . . . . . . . . . . . . . . . . . . . . . . . .14-15

Discrimination . . . . . . . . . . . . . . . . . . . . . . . . . . .14
All Metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
PinPoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Target Identification  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Depth And Target Display  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Trouble Shooting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Code of Ethics  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover

5-YEAR LIMITED WARRANTY

FREE DETECTOR.

For details, visit www.tekneticst2.com

The

Delta

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 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.
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 Henry Brennan Dr.

El Paso, TX 79936

Phone: 915-633-8354

NOTE TO CUSTOMERS OUTSIDE THE U.S.A.

This warranty may vary in other countries, check with your distributor for details.

Warranty does not cover shipping costs.

According to FCC part 15.21 Changes or Modifications made to this device not expressly approved by

the party responsible for compliance could void the users authority to operate this equipment.

This device complies with FCC Part 15 Subpart B Section 15.109 Class B.

2015 by First Texas Products, L.L.C.

except for the inclusion of brief quotations in a review.

Published by First Texas Products, L.L.C.

1465 Henry Brennan • El Paso, TX 79936 • (915) 633-8354

Made in the USA from USA and imported parts.

TREASURE HUNTER’S CODE OF ETHICS:

• Always check Federal, State, County and local laws before searching.

• Respect private property and do not enter private property without the owner’s permission.

• Take care to refill all holes and leave no damage.

• Remove and dispose of any and all trash and litter found.

• Appreciate and protect our inheritance of natural resources, wildlife and private property.

• Act as an ambassador for the hobby, use thoughtfulness, consideration and courtesy at all times.

• Never destroy historical or archaeological treasures.

• All treasure hunters may be judged by the example you set; always conduct yourself with

courtesy and consideration of others

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.

TROUBLESHOOTING GUIDE

SYMPTOM

CAUSE

SOLUTION

Detector chatters

• Using detector

• Use detector

or beeps erratically

indoors

outdoors only

• Using detector near • Move away

power lines

from power lines

• Using 2 detectors in • Keep 2 detectors

close proximity

at least 20’ apart

• Highly oxidized

• Only dig up

buried object

repeatable

signals

• Environmental

• 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

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

• Reduce sensitivity

too high

No power, no

• Dead battery

• Replace battery

sounds

• Cord not connected • Check connections

securely

TROUBLESHOOTING

ASSEMBLY

Adjusting the Armrest

The armrest may be moved

forward or backward by removing

the single screw and nut, and then

repositioning the 2-piece armrest.

Users with shorter arms may find

the armrest more comfortable in

the forward position. In order to

move the armrest backward, the

plastic plug must be removed from

the aluminum tube.

Armrest 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

Searchcoil
Cable

Cable
Plug

Searchcoil

S-Rod

Armrest

Velcro

Strap

Middle
Stem

Velcro

Strap

Locking
Collar

Battery
Compartment
(back side)

1/4” Headphone Jack

DEPTH AND TARGET DISPLAY

Please refer to the display on your detector
and reference the TARGET-ID categories
below applicable to your model (not all
detectors include all of these categories).

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.

The detector will register a consistent target

identification, upon each sweep of the coil,

when a buried target has been located and

identified. If, upon repeated passes over the

same spot, the target identification reads

inconsistently, the target is probably a trash

item, or oxidized metal. With practice, you will

learn to unearth only the repeatable signals.

The segment identifications are highly

accurate, when detecting the objects

described on the label. However, if an object

registers in a given category for an unknown

buried object, you could be detecting a

metallic object other than the object described

on the label, 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 toward

the middle or left-of-center on the LCD scale.

Gold flakes may register under iron.

Small gold items may register under foil or 5¢.

Large gold items will register toward the

center of the scale.

SILVER TARGETS:

Silver objects will register

to the right of the scale, under dime or higher.

IRON:

All sizes of iron objects will register on

the far-left side of the scale. This could

indicate a worthless item such as a nail, or a

more valuable historic iron relic.

FOIL:

Aluminum foil, such as a gum wrapper,

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

ALUM:

Older pull-tabs, which always detached

completely from the can, register here. Many

medium size gold ring also register here.

PT (pull-tabs):

Pull-tabs from older beverage

cans will register here. Few newer pull-tabs

will also register here. Many gold rings will

also register here.

S-CAP:

Older screw caps from glass bottles

will register here. Large gold rings, like a class

ring, could also register here. Some non-U.S.

coins of recent vintage will also register here.

Zinc:

Medium conductivity objects and many non-

U.S. coins of recent vintage are classified here.
The Target Identification Categories to the

right of the display, such as copper coins, 10¢,

DIME, 25¢, Quarter, 50¢, $1 accurately

identify these U.S. coins. When used in areas

outside the U.S., these categories identify

coins or metal objects of high relative

conductivity (such as silver coins or relics), or

large objects made of any type of metal.

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.

5-SEGMENT DEPTH INDICATOR:

The Depth Indicator is accurate for coin-sized

objects. It indicates the depth of the target, in

inches as follows:

Segments Illuminated
Top

Segment

0 to 2” deep.

Top 2

Segments

2” to 3” deep.

Top 3

Segments

4” to 5” deep.

Top 4

Segments

6” to 7” deep.

All

Segments

8”+ deep.

Large and irregularly-shaped objects will yield

less reliable depth readings
When passing over an object, the indicators

will light up and stay illuminated for three

seconds. If the depth indication varies with

each sweep, try sweeping at different angles;

there may be more than one target present.

With practice, you will learn the difference

between accurate readings, multiple targets,

and highly erratic readings which evidence

trash or irregularly shaped objects.

POINT

MODE

LOW TONE

Nails & Small Gold

MEDIUM TONE

Pull-Tabs, Nickels, Smaller &

Larger Gold, Zinc Pennies

(Post-1982), Many screw caps

HIGH TONE

Copper, Silver & Brass

Copper Pennies (Pre-1982)

TARGET IDENTIFICATION

Audio Target Identification (ATI) classifies metals into three categories.

In DISCRIMINATION Mode, targets

are identified both audibly and visually

as follows:

1.Different pitch tones for different types of

metals

2.A 2-digit Target-ID

3.An illuminated icon within the target

category best describing it.

AUDIO TARGET IDENTIFICATION:

Tones identify targets as follows:

LOW TONE (ID: 1 - 39)

Ferrous objects, such as iron and steel,

like nails and tin cans. Smallest-sized gold

objects and some steel bottle caps

MEDIUM TONE (ID: 40 - 79)

Foil, pull-tabs (some new style), nickels,

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 (ID: 80 - 99)

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 Sacagawea dollar coins.

Flattened aluminum cans (with a stronger

signal than a coin)

2-Digit Target Identification

The 2-digit value in the middle of the

screen 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

specific objects. Coins are more likely to

yield the same value with each pass of the

coil due to their concentric shape. The

presence of multiple targets will yield

multiple tones. Trash objects are more

likely to yield a different 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

Typical

Numeric Some

Values for

Value Common

Common

Category Range Objects

Objects

Iron

10 - 39

Foil

40 - 55

Nickel

56 - 60 US Nickel

Pull-Tab

61 -75

S-Cap+

65 - 74

Zinc

75 - 79 US Zinc Penny

(After 1982)

Dime

80 - 85 US Dime

US Copper Penny 81 - 82
(Pre-1982)

Quarter+ 86 - 90 US Quarter

50¢+

91-99

US Half-Dollar

US Silver Dollar

94-96

ASSEMBLY (continued)

●

Position S-Rod upright.

●

Rotate the LOCKING COLLAR fully in the

counterclockwise direction.

●

Insert your finger inside the tube and make sure the

INTERNAL CAM LOCK is flush with the inside of

the tube.

●

Insert the MIDDLE STEM into the S-ROD,

with the SILVER BUTTON pointed upward

●

Rotate the MIDDLE STEM until the SILVER

BUTTON locates in the hole.

●

Twist the LOCKING COLLAR fully in the clockwise

direction until it locks.

●

Repeat this process on the LOWER STEM.

●

Using the BOLT and KNURLED KNOB, attach the

SEARCHCOIL to the LOWER STEM.

●

Adjust the LOWER STEM to a length that lets you

maintain a comfortable upright posture, with your arm

relaxed at your side, and the SEARCHCOIL parallel to

the ground in front of you.

●

Wind the CABLE securely around the STEMS, leaving

slack at the bottom.

●

Connect CABLE PLUG to housing.

Do not twist the Cable or Plug. Turn Locking Ring

only. Use minimal finger pressure to start the threads.

Do not cross-thread. When the Locking Ring is fully

engaged over the threaded connector, give it a firm

turn to make sure that it is very tight. When the

Locking Ring is fully engaged over the threaded connector, it

may not cover all of the threads.

●

Tighten both LOCKING COLLARS.

S-ROD

LOCKING

COLLAR

INTERNAL

CAM LOCK

SILVER BUTTON

MIDDLE

STEM

S-ROD

MIDDLE STEM

●

Note: Very tall users can purchase the optional Extended Lower Stem (TUBE5X), for extended reach.

Caution:

Forcing in MIDDLE STEM with CAM LOCK raised may form a burr on

cam lock. If this happens, remove burr with knife to allow insertion.

Locking

Collar

Locking

Collar

S-Rod

Velcro

Strap

Velcro

Strap

Knurled

Knob

Bolt

Coil

Hand-grip

Coil Cable

Lower

Stem

Middle

Stem

Cable

Plug

3. PINPOINT

Enter PINPOINT from either Disc or All

Metal Mode. Press and hold

activate pinpoint. Pinpoint detection is

only active for as long as you keep

depressed.
Pinpoint is used to find the exact

location of a target which was

previously located and identified

using the Discrimination Mode. As

this mode does not require motion

over the target, the user can move

the coil more slowly and then

narrow the detection field when

near the target.
How to Pinpoint

Position the searchcoil an inch or two

(2.5-5cm) above the ground, and to the

side of the target. Then press and hold

. Now move the searchcoil slowly

across the target, and the sound will

communicate the target’s location. As

you sweep from side to side, and hear

no sound at the ends of the sweep, the

target is located in the middle of that

zone, where the sound is loudest. If the

sound is loud over a wide area, the

buried object is large. Use Pinpoint to

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 repeat the procedure, the

field of detection will narrow further.
Consider Purchasing a Pinpointer

When you kneel down to unearth an

object, you may find it frustrating as the

object can appear exactly like the

surrounding soil. You may hold the

object in your hand, and find it

necessary to pass a handful of dirt over

the searchcoil to see if it contains

metal. An easier way is to use a

handheld pinpointer. It is a probe-like

device which is poked into the ground,

making close up pinpointing a snap,

reducing digging time, and minimizing

the size of the holes you will dig.

Teknetics offers a robust and

inexpensive pinpointer designed for

this purpose.

MODE SELECTIONS

(cont.)

CORRECT

WRONG

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 using 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 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.

BATTERY INDICATOR

The remaining battery life is proportional to the percentage of the battery icon

illuminated.

After the battery indicator begins flashing, expect the detector to shut off within

10 minutes.

BATTERY DISPOSAL & RECYCLING

Alkaline batteries may be disposed of in a normal waste receptacle or

recycled. Non-Alkaline batteries should be recycled. In the state of California

all battery types must be recycled. Please refer to local municipalities for

detailed disposal and recycling requirements.

BATTERIES

OPERATION and CONTROLS (continued)

QUICK-START DEM ONSTRATION

I. Supplies Needed

• a Nail • a Zinc Penny (dated after 1982) • a Nickel • a Quarter

II. Position the Detector

a. Place the detector on a table, with the searchcoil hanging over the edge.

Or better, 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.

III. Power Up

Press

IV. Wave each object over the searchcoil

a. Notice a different tone for each object:

No Tone:

Nail (in default setting iron is not 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

VIII. Wave the Nickel

a. The Nickel is now again detected.

b. The Nickel has been “notched in.”

IX. Press

to toggle down to ALL METAL

X. Pass the Quarter over the searchcoil.

a. Move the Quarter closer to and farther away from the searchcoil. Notice

the change in pitch and volume.

XI. Press and hold

a. Hold the Quarter motionless over the searchcoil.

b. Notice that motion is NOT required.

c. Move the Quarter closer, then farther away from the coil. Notice the

changing depth reading.

MODE SELECTIONS

There are three selections under the MODE section of the display.

• Press

to toggle between DISCRIMINATION and ALL METAL.

• Press

at any time to activate PINPOINT Mode.

1. DISCRIMINATION Mode

This mode is the default mode, and requires the searchcoil to be in motion in

order to detect and identify targets. This is the mode most commonly used for

continuous searching. In this mode, targets are identified with distinct tones,

and are classified in categories at the bottom of the display. A two-digit

numerical value, on a scale of 10 to 99, is displayed in the middle of the

screen. The depth range of the target is also displayed at the right of the

display. All MENU items can be selected and customized in this mode.

2. ALL METAL Mode

All Metal Modes of operation are, like discrimination, motion modes of

operation. The visual target identification system will identify targets, similar to

the Discrimination Mode, except that target rejection is not possible in any All

Metal Mode.
There are two different All Metal Modes, identified as A1 and A2.

The best All Metal 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 more highly mineralized ground.
A2 is more tolerant of ground conditions, but will be less sensitive over less-

mineralized ground. The two modes also have different audio characteristics.

A2 will provide better target separation, as the sound covers a “tighter” area as

you cross over a target.
In both A1 and A2, all types of metal objects induce a sound which varies in

pitch and volume according to the size of the object and its distance from the

coil. For example, a larger object close to the coil will induce a loud, high-

pitched tone. A small object, farther from the coil will induce a lower-pitch

lower-volume tone.
Use an ALL METAL Mode for maximum sensitivity to buried targets.

OPERATION and CONTROLS (continued)

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.

3. Identifying a buried metal object before you dig it up.

4. Estimating the size and depth of objects, to facilitate digging them up.

5. Eliminating the effects of electromagnetic interference from other

electronic devices.

Your 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 differ, and can differ

greatly, in the type and amount of ground minerals present. The Delta has

a preset ground elimination setting. No user adjustment is 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 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) 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.

4. Size and Depth of Buried Objects

When using the detector in the motion DISCRIMINATION Mode, the relative

depth of an object is displayed on the right of the display in a 5-segment

format. A more accurate depth reading is available in a no-motion mode,

using PINPOINT Mode. Pinpoint displays target depth in inches. Pinpoint

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.

At any time, the display screen indicates the current category notches or discrim-

ination settings. Any category whose description is not visible will not be detected.
For example, the following settings tell us that:

• The nickel, dime,

quarter and 50¢

categories will be

detected.

• All other categories

of targets (iron, foil,

alum and zinc) will

not be detected.

4. VOLUME

While the VOLUME line 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 or ALL METAL

Modes, but only one setting applies to both modes. Volume in the two modes

cannot be set independently.

MENU SELECTIONS

(cont.)

NOTCH

(cont.)

OPERATION and CONTROLS (continued)

5. EMI (Electromagnetic Interference)

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.

THE BASICS OF METAL DETECTING (continued)

MENU SELECTIONS

(cont.)

2. DISC. LEVEL

Use

and

to increase or decrease DISCRIMINATION level.

Each time you press

, a target category is eliminated from detection.

Elimination occurs from left to right. When a category description (for example

“IRON”) disappears from the display, then targets classified in that category

will not be detected.

Pressing

reverses the discrimination process. With each press of

, a category description will reappear, indicating that targets

classified in that category will again be detected.
Discrimination is a cumulative elimination system. Targets can be eliminated

from left to right on the scale, with each additional press of

, resulting in

more objects being eliminated from detection.

3. NOTCH

Use

and

to notch target categories 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

, the notched category moves across the

display screen. As you move the position of the notched category, you are
changing the detection status of the selected category.

• If a target category was previously eliminated (word not visible) then

notching that category will return it to detection.

• If a target category was previously retained (word is visible) then

notching that category will remove it from detection.

Only one target category at a time can be selected for notching. To notch multiple

categories in or out, wait for the icon to stop flashing and then press

again to select the next notch.

Each time you press

to select notch, followed by

, the notch

program will begin by changing the status of the IRON segment.

OPERATION and CONTROLS (continued)

HEADPHONE JACKS

The detector has a 1/4” headphone jack on the left side of the housing.
When the headphone jack is connected, speaker audio is disabled.

USING HEADPHONES

Using a detector with headphones facilitates detection of the weakest sig-

nals and also extends the battery life.
It also allows you to hear subtle changes in the sound more clearly, particular-

ly 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.

Headphone

Jack

OPERATION and CONTROLS

HOW TO WORK THE CONTROLS

Press

MENU

button

to select the

menu item you

want to adjust.

Press

MODE

button

TOGGLE

between

the Discrimination

and All Metal

Modes.

POWER

ON/OFF

Press and hold

the Pinpoint

button to

actuate

PINPOINT

at any time.

Press or Buttons

CHANGE THE SETTING

of the active menu item.

The active menu item is

the Highlighted line on the

left side of the display.

POWERING UP

NOTE: Immediately after powering on, your detector's unique 10-digit serial

number is displayed once on the LCD. Two digits are displayed at a time; five

2-digit numbers are displayed in sequence. This 10-digit serial number is the

same serial number imprinted on the label inside the battery compartment.
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 will be detected except iron.

MENU SELECTIONS

1. SENSITIVITY

Use

and

to increase or decrease sensitivity while the SENSITIVITY

line is highlighted.

Maximum sensitivity setting is 12.

Minimum sensitivity setting is 4.

If the detector beeps erratically or beeps when there are no metal objects

being detected, reduce the sensitivity.

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.

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. Detectability is directly

related to the size of the metal object -- the larger the object, the deeper it can

be detected.

Accuracy of target identification is also related to distance from the coil.

Beyond a distance of 8”, the accuracy of target identification begins to

diminish.

Discrimination and All Metal Modes have independent sensitivity settings.

First highlight the mode, then adjust the sensitivity level for that mode.

OPERATION and CONTROLS (continued)

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