Teknetics T2 Special Edition User Manual
Special Edition
PROFESSIONAL
METAL
DETECTOR
COMPREHENSIVE
OPERATING MANUAL
& GUIDE TO
METAL DETECTING
TEKNETICS
Comprehensive Operating Manual & Guide to Metal Detecting
The Teknetics
grade metal detector. It utilizes the latest advances in electronic technology,
and its functional design represents the leading edge of the metal detector
engineering art. The
comparable metal detectors. Its combination of light weight and balance
provides comfort unmatched by any other detector in its price range. Its
most popular uses include coinshooting, relic hunting, and gold prospecting.
®
T2is a new high-performance multi-purpose professional
T2is easier to learn to use properly than other
PRODUCT FEATURES
• Simple, easy-to-use controls
• Large LCD screen with Target Identification and operating control displays
• Straightforward menu-driven user interface
• Bar graph readout of ground mineral concentration
• Trigger-actuated FASTGRAB™ ground canceling with manual override
• 11”DD Elliptical, Open Waterproof Searchcoil
• Single-Filter All Metal Mode for maximum detection depth
• Double-Filter Discrimination Modes for searching in trashy areas
• Trigger-actuated target pinpointing with variable audio pitch
If you have any questions, or need assistance with your metal detector,
Call 1-800-413-4131, and ask for Teknetics®Customer Service.
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Comprehensive Operating Manual & Guide to Metal Detecting
TEKNETICS
TABLE OF CONTENTS
Quick-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Mechanicals
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Headphones (not included) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Introduction to the Teknetics®T
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Menu System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Ground Cancellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-14
All Metal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Discrimination Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-17
PinPoint Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
LCD Visual Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-21
Numeric Target Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Probable Target Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Target Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
G.C. Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Bar Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Battery Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Frequency Shifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Capabilities & Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-24
Tips & Techniques
Search Techniques
Sweep Searchcoil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Pinpointing targets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26-27
Estimating Target Size, Depth and Shape . . . . . . . . . . . . . . . . . . . . . . . . .27-28
False signals and chatter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28-30
Adjusting Sensitivity using the Sensitivity Control . . . . . . . . . . . . . . . . . . . . . .30
Tips On Ground Canceling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Detecting Activities
Coinshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Relic Hunting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32-33
Gold Prospecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33-36
Cache Hunting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36-37
Shallow Water Hunting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
How metal detectors work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Treasure Hunter’s Code of Ethics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
2
TEKNETICS
Comprehensive Operating Manual & Guide to Metal Detecting
QUICK START
Start using your T2right out of the box
1. Assemble the detector (see instructions beginning page 5-6).
2 Install four AA
3. Turn the knob, located under the armrest, fully clockwise.
This turns the machine on and sets audio volume to maximum.
4. When first turned on, the
Sensitivity preset to 60
Discrimination Level preset to 10
Number of Tones preset to method-1
Sweep the searchcoil from side to side, parallel to the ground. Keep the searchcoil
moving over the ground. If you stop moving the search coil, the sound will also stop.
Probable target type will be indicated at the top of the LCD screen.
5. If the searchcoil is not in motion and not close to metal, the detector should be silent.
6. If you experience false signals from electrical interference, from the soil itself, or from lots
of trash metal, press the Menu button.
Sensitivity will be highlighted.
Rotate the
Reduce the sensitivity setting until the false signals go away.
After 5 seconds, the machine will exit the menu and return to normal operation.
7. Toss a coin on the ground and sweep back and forth over it a few times to get a feel for
how the machine responds.
8. You are now ready to search.
alkaline batteries. All positive terminals point up.
T2starts out in the Discrimination Mode, with:
Settings knob to the left (counterclockwise),
9. Pull the trigger switch with your index finger to pinpoint the exact location of
targets, making them easier to unearth.
When the trigger is pulled, PinPoint is engaged ….
The searchcoil need not be in motion to detect an object.
The 2-digit numeric display indicates approximate target depth, in inches.
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Comprehensive Operating Manual & Guide to Metal Detecting
Release Clip
Battery Compartment
Hand-grip
2-way
adjustable
armrest
On/Off &
Volume
Switch
Menu
Botton
Headphone Jack
Search
Coil
Cable
Settings
Switch
Upper
Stem
Biaxial
Searchoil
Dual-function
Tri gger switch
S-Rod
S-ROD
LOCKING
COLLAR
INTERNAL
CAM LOCK
SILVER BUTTON
MIDDLE
STEM
S-ROD
MIDDLE STEM
TEKNETICS
MECHANICALS
Caution:
Forcing in MIDDLE STEM with CAM LOCK raised may form a burr on
camlock. If this happens, remove burr with knife to allow insertion.
Assembly
1 Position S-Rod upright.
2 Rotate the LOCKING COLLAR fully in the
counterclockwise direction.
3 Insert your finger inside the tube and make sure the
INTERNAL CAM LOCK is flush with the inside of the tube.
5
●
4
Insert the MIDDLE STEM into the S-ROD,
with the SILVER BUTTON pointed upward
5 Rotate the MIDDLE STEM until the SILVER BUTTON
locates in the hole.
6 Twist the LOCKING COLLAR fully in the clockwise direction
until it locks.
7 Repeat this process on the LOWER STEM.
8 Using the BOLT and KNURLED KNOB, attach the
SEARCHCOIL to the LOWER STEM.
9
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.
10
Wind the CABLE securely around the STEMS.
11
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 crossthread. 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.
12 Tighten both LOCKING COLLARS.
Note: Very tall users can purchase the optional Extended
*
Lower Stem (TUBE5X), for extended reach.
●
2
3
●
4
●
4
●
5
TEKNETICS
Comprehensive Operating Manual & Guide to Metal Detecting
MECHANICALS (continued)
BATTERIES
The T2uses four AAbatteries. Use ALKALINE batteries for best performance. Rechargeable
batteries may be used. Expect 40 hours of service in the field with one set of ALKALINE
batteries.
If you use rechargeable batteries, good-quality NiMH (nickel-metal–hydride) batteries are
recommended. They will usually deliver over 25 hours of service without recharging, but when
they start running low, they die suddenly with little warning.
Always install batteries which are of the same type and the same state of charge. Otherwise
battery life will be determined by the weakest battery, as the good batteries cannot deliver their
power with a dead battery blocking the current.
All 4 batteries are installed with the
DO NOT MIX OLD AND NEW BATTERIES
The LCD screen shows battery condition on the right.
positive terminals facing upward.
ARMREST
The armrest WIDTH and POSITION are both adjustable.
Armrest Width: The sides of the armrest can be bent inward and outward.
To best stabilize the detector to your arm and body movement, squeeze the sides of the
armrest around your forearm. For a very secure fit, some users prefer to bend the
armrest in tightly against the forearm such that you pry the sides loose each time you
place your arm into the armrest.
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Comprehensive Operating Manual & Guide to Metal Detecting
TEKNETICS
MECHANICALS (continued)Detecting Activities (continued)
Armrest Position on Pole: Remove the two bolts to position the armrest farther forward
or back, to adapt to your arm’s length.
— To reinsert the bolts, spin and twist them into place. Be careful not to damage the
power cable that runs through the aluminum tube.
— Insert both bolts completely through both sides of the bracket
to the opposite side.
— For maximum stability, the bolts fit very tightly into the holes; you may have to wiggle
each one a bit to push it through the holes.
— After reinserting the bolts, tighten them very securely. As you swing the detector from
side-to-side, you want the bolts tight enough so that you do not feel any movement
between the pole and armrest mounting bracket.
If you notice unwanted movement while swinging detector, check the tightness
of the locking collars
locking position.
. The locking collars must be rotated a full 270° to reach the
before attaching the nut
Adjust the armrest in or out accordingly Adjust the armrest forward or back, to adapt to
your arm’s length.
HEADPHONES (not included)
The T2is equipped with a standard 1/4-inch stereo headphone jack at the rear of the unit,
located under the elbow as you hold the detector for use. Any headphone with a 1/4”
stereo jack should work. Mono headphones will not work.
Using headphones improves battery life, and prevents the sounds from annoying bystanders.
It also allows you to hear subtle changes in the sound more clearly, particularly if
searching in a noisy location.
For safety reasons, do not use headphones near traffic or where other dangers, like
rattlesnakes, are present.
This device is to be used with interconnecting cables/headphone cables shorter than three
meters.
TEKNETICS
Comprehensive Operating Manual & Guide to Metal Detecting
Introduction to the Teknetics®T
2
General Information
HIGH PERFORMANCE The Teknetics
computerized metal detector. It has the high sensitivity and ground cancellation features
needed for professional gold prospecting, the discrimination responsiveness needed for
serious relic hunting under difficult conditions, and visual Target-ID considered essential in
searching for coins. The ground cancellation system can be adjusted to allow searching salt
water beaches. The
well as to coins. The
detection depth in mineralized soils.
USER COMFORT The T
metal detectors, so you can hold and swing it almost effortlessly. The armrest position is
adjustable to fit your arm. The grip is durable high-friction foam elastomer, comfortable in any
kind of weather. The controls are conveniently located and easy to learn how to use. Locking
collars on the tubes eliminate rattling.
T2operates at 13 kHz for good sensitivity to gold nuggets and jewelry as
T2comes with an 11-inch elliptical Bi-Axial searchcoil for maximum
2
is light weight and the best balanced of any high-performance
EASY-TO-USE & INFORMATIVE INTERFACE The entire menu is always visible on the
LCD display. The LCD display indicates the electrical signature (Target-ID) of the detected
metal object. The display provides continuous information on battery condition and on ground
mineralization, which affects detection depth. Help messages are automatically displayed on
the lower right corner of the display when necessary.
LOW OPERATING COST The T
typically last for more than 40 hours of use before needing replacement.
®
T2is a multi-purpose high-performance
2
is powered by four AAalkaline batteries, which will
DESIGNED BY EXPERIENCED ENGINEERS The lead engineers on the T
team were John Gardiner, firmware engineer, and David Johnson, whose expertise is behind
many of the best-known high-performance metal detectors offered by major U.S.
manufacturers for the last 26 years.
2
design
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Comprehensive Operating Manual & Guide to Metal Detecting
TEKNETICS
SPECIFICATIONS
Mechanical: S-rod with electronics housing mounted on handgrip, 3-piece breakdown,
batteries under elbow, 2-way armrest adjustment — forward/backward & around forearm.
Searchcoil: 11” (28 cm) open-frame elliptical double-D, waterproof.
Batteries: 4 AA, alkaline or NiMH (not included).
Weight: 3.5 pounds (1.6 kg) with alkaline batteries installed.
Static Balance: force in vertical plane normal to elbow 0.47 pounds (0.22 kg).Varies with
adjustment and user’s stance and arm/hand physiology.
Dynamic Balance: axial moment, 0.29 foot-pounds (0.39 newton-meters). Varies with
adjustment and user’s stance and arm/hand physiology.
Sweep Effort: lateral moment 5.2 foot-pounds (7.1 newton-meters).
Operating Principle: VLF induction balance
Operating Frequency: nominal 13 kHz, quartz crystal timing reference
Basic Sensitivity: 5 x 109 root Hertz (detectivity)
Lag Coefficient: 70 milliseconds
Reactive Overload: approximately 10,000 micro-cgs units (volume susceptibility)
Resitive Overload: approximately 1,200 micro-cgs units (volume susceptibility)
Ground Cancellation Range: From ferrite to salt, inclusive
Discrimination Ground Suppression: combination of second and third order methods
ID Ground Suppression: third order
Battery Life: typically 40 hours with good quality alkaline, somewhat less with NiMH rechargeable.
Operating Temp Range: -4 to +122 degrees F (-20 to +50 degrees C)
Operating Humidity Range: 0-90% non-condensing
TEKNETICS
Comprehensive Operating Manual & Guide to Metal Detecting
CONTROLS
ON-OFF & VOLUME Knob (Under the elbow)
This knob turns the machine on or off, and controls
speaker volume and headphone volume.
position has no effect on detector’s
sensitivity or susceptibility to noise
from electrical interference
The T2has two controls on the front panel, MENU
and SETTINGS.
MENU Pushbutton (On right of the
front panel)
Push the MENU button to:
1. Step through the menu selections on the display.
With each push of the button, the next menu selection
will be highlighted.
The SETTINGS knob allows you to change the
values of the highlighted selection.
2. Recall the last setting which you adjusted.
After you have adjusted a setting, an arrow will
remain highlighted next to this menu selection. One push of the menu
button will recall that selection and display the stored value.
This recall function is useful for a value you want to adjust frequently, such
as the ground cancellation value.
Knob
3. Press-and-Hold the Menu button to temporarily deactivate the
settings.
The standard function of the
depressed.
Releasing the button will return you to the
When using any # OF TONES setting other than
button will have no effect.
2+ # of TONES selection will be activated while the button is
bP or CL setting which you were operating in.
bP or CL, pressing-and-holding the
bP or CL
SETTINGS Knob (On the left of the front panel)
Rotate the SETTINGS knob to:
1. Change the setting (or value) of the highlighted menu selection you have chosen.
2. Select operating MODE when the top line of the menu is highlighted.
When used to switch back and forth between the All Metal Mode and Discrimination Mode,
the detector changes modes as soon as the corresponding selection is highlighted. The All
Metal Mode is used to detect all metal objects, including small or deep objects. Use the
Discrimination Mode to ignore trash metal such as nails, foil, or pull-tabs.
3. Recall the last setting which you adjusted.
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Comprehensive Operating Manual & Guide to Metal Detecting
TEKNETICS
CONTROLS (continued)
When you rotate the settings knob, you are also changing the value. If using this knob to
recall a setting, it is best to rotate just one indent.
TRIGGER SWITCH (Under the control housing in front of your hand)
While the trigger is pulled back, metal objects are temporarily detected without the need for
searchcoil motion. This aids in pinpointing the exact location of objects which were found
while searching in the All Metal or Discrimination Mode.
When the trigger is
The internal computer measures the magnetic properties of the soil in order to cancel
interference from naturally-occurring minerals in the ground. After the detector measures the
soil in this manner, the detector then uses this information to control operation in both the All
Metal and Discrimination search modes.
pushed forward, FASTGRAB™ automatic ground cancellation is activated.
THE MENU SYSTEM
The entire menu is printed on the LCD display. The display highlights the mode and settings
which are in use.
There are two search modes, All Metal and Discrimination. To change between search
modes, the top line of the menu system must be highlighted. Press the MENU button until the
top line of the menu is highlighted. When either
rotate the SETTINGS knob to change between the two modes.
Each search mode has three adjustable function settings:
ALL METAL: Sensitivity, Hum Level, and Manual Ground Cancellation. See page 15.
DISCRIMINA TION:
To select a function, push the MENU button and continue pushing to move to the function you
want. The word
of that function will be displayed as a number.
SETTING will pop up on the display above the menu, and the present setting
Sensitivity, Discrimination Level, and Number of Tones. See page 15-16.
ALL METAL or DISCRIM is highlighted,
To change a setting, rotate the knob.
To increase a value, rotate to the right
(clockwise)
To decrease a value, rotate to the left
(counterclockwise)
If you select a function and do not make a change to that
function after 5 seconds, the detector will exit the menu
system automatically, and resume normal operation.
TEKNETICS
Comprehensive Operating Manual & Guide to Metal Detecting
THE MENU SYSTEM (continued)
If you press the MENU button or rotate the SETTINGS knob while the machine is in normal
operation, the user interface will return to the last menu feature setting. This feature allows
you to have quick access to a function that you want to adjust frequently.
GROUND CANCELLATION
What is Ground Cancellation?
All soils contain minerals. Signals from ground minerals are often tens or hundreds of times
as strong as the signal from a buried metal object. The magnetism of iron minerals, found in
nearly all soils, causes one type of interfering signal. Dissolved mineral salts, found in some
soils, are electrically conductive, causing another type of interfering signal.
Ground Cancellation is the process by which the metal detector cancels the unwanted ground
signals while leaving signals from buried metal objects intact. This is accomplished by
establishing the detector’s internal Ground Phase setting; this setting is calibrated to the soil
and eliminates the ground minerals’ signal.
When the detector is calibrated to the actual soil condition, the result will be
deeper target detection, quieter operation, and more accurate Target
Identification. This calibration, or Ground Cancellation, can be accomplished
automatically with the detector’s internal computer, by pushing the Trigger
Switch forward, or manually in the All Metal menu.
The ground cancellation setting carries through into both All Metal and
Discrimination Modes. In Discrimination Mode, the ground signal is generally
inaudible unless the discrimination setting is 0.
AUTOMATIC GROUND CANCELLATION PROCEDURE
(FASTGRAB™)
1. Find a spot of ground where there is no metal present.
2. Hold the detector with the searchcoil about one foot
above the ground.
3. Push the TRIGGER SWITCH forward with your index
finger.
4. Physically pump the searchcoil and detector up and down over
the ground. Lift it about 6 inches above the ground and lower
it to within 1 inch of the ground, about once or twice a
second.
5. A2-digit value will appear on the display. This is the
Ground Phase setting.
If the detector’s internal computer is
unable to cancel the ground signal, the
message
another spot of ground and try again.
CAN’T GC will appear; find
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