Pinpoint Feature - Teknetics T2 Operating Manual And Manual

MT2E-TekneticsMANUAL.qx6_MT2E manual 10/20/14 11:10 AM Page 18
TEKNETICS
Comprehensive Operating Manual & Guide to Metal Detecting

PinPoint Feature

After a buried target has been located using the All Metal or Discrimination Modes, you want
to pinpoint the exact location of the target in order to facilitate its recovery. Accurate target
pinpointing will minimize digging.
Activate the PinPoint feature by pulling the trigger switch located under the housing, in front of
the grip. Unlike the All Metal and Discrimination Modes, PinPoint does not require motion to
detect metal. PinPoint will detect objects while the coil is in motion and will continue to detect
metal if searchcoil motion stops over the target.
If you have not performed the ground cancellation procedure, the PinPoint feature usually
Ground Pick-Up
causes the ground to sound off. This means that while pulling the pinpoint trigger, the audio
tone will get louder as you lower the searchcoil to the ground; this is called ground pick-up.
Since you want to hear the target, rather than the ground, we recommend first ground
canceling in order to eliminate ground pick-up. Alternatively, if you experience ground pick-up,
you may place the coil very close to the ground, off to the side of the target; then pull the
trigger, and raise the searchcoil slightly while passing it over the target.
Position the searchcoil just barely off the ground, and to the side of the target. Then pull the
How to Pinpoint
trigger, and raise the searchcoil about 2-inches. Lifting the searchcoil away from the ground
causes the ground signal to go negative; the machine becomes silent. 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 and the audio pitch is highest. If
the sound is loud over a wide area, the buried object is large. Use the PinPoint feature to trace
an outline of such large objects.
To further narrow the field of detection, position the searchcoil near the center of the
Narrow It Down
response pattern (but not at the exact center), release the trigger, and then pull 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.
Controlling Sensitivity in PinPoint Mode The default sensitivity setting in PinPoint is 60. If you wish to change the PinPoint sensitivity
setting:
Pull the trigger to engage PinPoint. Do not release the trigger.
Rotate the SETTINGS knob to change the sensitivity.
Rotate counterclockwise to decrease sensitivity; clockwise to increase.
Adjustment to PinPoint sensitivity will not affect sensitivity of the All Metal or Discrimination
Modes. Likewise, sensitivity changes in the other modes will not affect Pinpoint. Changes to
pinpoint sensitivity will be saved after the trigger is released. When the T
device will revert to the default setting.
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CAPABILITIES AND LIMITATIONS (continued)
To achieve maximum depth in both the ALL METAL and DISCRIMINATION Modes, as well as
GROUND CANCELING
when using the PinPoint feature, the T
manual adjustment, or automatically using the FASTGRAB™ feature (see p.12).
If you do not perform the ground canceling operation, the Discrimination Mode will usually still
work fairly well, but the ALL METAL Mode will not. The Pinpoint feature can be used for
pinpointing objects at moderate depth in most soils without prior ground-canceling.
The internal computer will not automatically cancel salt water, so when detecting on wet ocean
beaches, ground cancellation must be done manually.
Discrimination refers to a metal detector's ability to ignore metal objects in selected categories,
DISCRIMINATION
especially iron and aluminum. This makes searching much more pleasant in an area with a lot
of metal trash. The T
according to the search conditions and your personal preference.
The estimated Depth Reading displayed when engaging the PinPoint feature is based on the
DEPTH READING
strength of the signal. It is calibrated for typical coin-sized objects. Small objects will read
deeper than they actually are, and large objects will read shallower than they actually are.
There may be times when you want to test or demonstrate the metal detector without
AIR TESTING
sweeping it over the ground, for instance, if not fully assembled, or if you are indoors. To air
test, place the searchcoil in a spot where the detector is stable and more than two feet away
from any large masses of metal, including the reinforcing steel usually present in concrete. If
you are wearing a wristwatch or jewelry on your hand or arm, remove it. Then, test or
demonstrate by waving metal objects over the searchcoil; wave objects briskly, several inches
over the top of, and parallel to, the searchcoil.
Ground cancellation cannot be tested or demonstrated in air unless you happen to have
appropriate specimens of iron minerals available.
The T
SWEEP SPEED
good targets surrounded by trash. It also permits the user to sweep the searchcoil quickly in
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order to cover more ground with very little risk of losing targets. In general, if you are
searching an area where the desirable targets are more than 8 to 10-inches deep, a faster
sweep speed will detect to a greater depth and yield more accurate Target-IDs.
In order to most accurately verify a detected target with most other metal detectors, users will narrow
CHECKING A TARGET
their sweep and loiter over the top of the target. The T
advanced signal sampling system produces the most accurate Target-IDs with deliberate (shoulder
width) sweeps all the way across the target, even if there are other targets nearby. If you use a non-
standard sweep method or speed to check targets with the T
is powered off, the
you run the risk of misidentifying the target.
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Comprehensive Operating Manual & Guide to Metal Detecting
offers the ability to cancel ground minerals either by
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offers a wide variety of discrimination features which you can select
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is noted for its quick response. This gives it unsurpassed ability to locate and identify
is different. The T
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TEKNETICS
's quick response and
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, the ID's will bounce around more and
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