Delta 4000 User Manual

METAL DETECTOR

OWNER’S MANUAL

If you do not have prior experience
with a metal detector, we strongly

recommend that you:

1) Adjust the Sensitivity
to a low setting in the
event of false signals.

Always begin use at a

reduced sensitivity level; this device is
designed to work “into-the-noise”, so
expect chatter 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 search coil
away from appliances such as computers,
televisions and microwave ovens. If
your detector beeps erratically, turn
off appliances and lights.

Also keep the search coil away
from objects containing metal,
such as floors and walls.

3) Use a 9-volt ALKALINE battery
only.
Do not use Heavy Duty Batteries.

TABLE OF CONTENTS

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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

2

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

ASSEMBLY

Locking
Collar

Locking
Collar

Upper
Stem

Cable

Knurled
Knob

Bolt

Coil

S-Rod

Velcro
Strap

Velcro
Strap

Assembly is easy and requires no tools.

1 Loosen both Locking Collars by rotating 100%

●

counterclockwise

2 Insert the Upper Stem into the S-Rod and click

●

Silver Button into hole

3 Position the lower stem with the silver

●

button toward the back.
Using the bolt and knurled knob, attach
the search coil to the lower stem.

4 Press the button on the upper end of

●

the lower stem, and slide the lower
stem into the upper stem.

Adjust the stem to a length that lets you
maintain a comfortable upright posture,
with your arm relaxed at your side, and
the search coil parallel to the ground in
front of you.

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 to the coil,
one on the upper stem, close to the housing.

Caution: Do not force the plug in. Excess force

4

will cause damage.
To disconnect the cable, pull on the plug.

Do not pull on the cable.

ASSEMBLY

Hand-grip

Nut

Screw

Search
Coil
Cable

Sea

rch

oil

S-Rod

armrest

Velcro
Strap

Middle
Stem

Velcro
Strap

Lo

cking

Collar

Locking
Collar

Headphone Jack

Adjusting the Arm Rest

The arm rest may be moved
forward or backwards by removing
the single screw and nut, and then
repositioning the 2-piece arm rest.
Users with shorter arms may find
the arm rest more comfortable in
the forward position. In order to
move the arm rest backwards, the
plastic plug must be removed from
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.

5

BATTERIES

The detector requires a single 9-volt ALKALINE battery (battery not
included).

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 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.

Do not use ordinary zinc carbon batteries.

Segments Illuminated Battery Voltage

3 -segments more than 8.9 volts
2 -segments more than 7.9 volts

1 -segment less than 6.9 volts
After all segments disappear, expect the detector to shut of f within 10 minutes.
Arechargeable battery will usually illuminate 2 or 3 segments throughout most

of its useful charge. But as soon as it drains to the 1-segment level, it will then
discharge very rapidly.

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