Tecnetics Alpha 2000 User Manual
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;
increase sensitivity only after you have
become familiar with the detector.
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
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
Disc Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Notch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Target Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Depth And Target Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
In The Field Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-17
Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Code of Ethics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
2
TERMINOLOGYHEADPHONE JACK
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
Loc
kin
g
Col
lar
Loc
kin
g
Col
lar
S-R
od
Vel
cro
Str
ap
Vel
cro
Str
ap
Knurled
Kno
b
Bolt
Sea
rch
Coi
l
Hand-grip
Sea
rch
Coil Cable
Low
er
Stem
Upp
er
Stem
Cable
Plug
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 in to the
Upper Stem.
a comfortable upright posture, with your arm
relaxed at your side, and the search coil
parallel to the ground in front of you.
Adjust the stem to a length that lets you maintain
5 Wind the cable securely around the stems.
●
6 Insert the plug into the matching connector on
●
the back of the detector body. Do not twist the
cable or plug. Be sure that the key-way and
pins line up correctly. Turn knurled cap nut
only . T ighten knurled cap nut by hand to secure
cable connection to housing.
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 will cause damage. To
4
disconnect the cable, pull on the
plug.
Do not pull on the cable.
ASSEMBLY
Hand-grip
Nut
Screw
1/8” H
eadphone Jack
1/4” H
eadphone Jack
Search
Coil
Cable
Cable
Plug
Sea
rch
Co
il
S-Rod
armrest
Velcro
Strap
Lower
Stem
Upper
Stem
Velcro
Str
ap
Knu
rle
d
Kno
b
Locking
Collar
Battery
Compartment
(back sid
e)
Loc
kin
g
Col
lar
Optional Arm Strap
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 (not included)
Some users prefer to use a strap
when swinging the detector
vigorously, in order to hold the
detector secure against the arm.
The strap may be purchased as an
optional accessory.
The detector can also be used
without the strap with no
compromise to detector balance
and stability under most
conditions.
5
BATTERIES IN THE FIELD TECHNIQUES
The detector requires a single 9-volt ALKALINE battery (battery not
included).
Do not use ordinary zinc carbon 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 3-segment battery indicator has 4 stages of indication.
These indications are accurate for a 9-volt alkaline battery.
Segments Illuminated Battery Voltage
3 -segments more than 8.3 volts
2 -segments more than 7.0 volts
1 -segment more than 6.2 volts
1 -segment flashing less than 6.2 volts
After the battery indicator begins flashing, expect the detector to shut off within
10 minutes.
A rechargeable battery will usually illuminate all segments throughout most of
its useful charge. But as soon as it drains to the 2-segment level, it will then
discharge very rapidly.
6
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