The
Discovery 2200
is a professional metal detector. While the most
difficult aspects of metal detecting have been automated, it is a sophisticated electronic device which
requires an understanding of some basic features and metal detecting concepts.
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 to full sensitivity 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, especially those with dimmer switches.
Also keep the search coil away from objects containing metal, such as floors and walls.
3)Read this manual. Most importantly, review the Quick-Start Demo (p.7-8) and Basic Operation (p. 9-11).
4)Use 9-volt ALKALINE batteries only. Do not use Heavy Duty Batteries.
TABLE
OF
CONTENTS
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . .3
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Quick-Start Demo . . . . . . . . . . . . . . . . . . . . .7-8
Basic Operation . . . . . . . . . . . . . . . . . . . . .9-12
All Metal . . . . . . . . . . . . . . . . . . . . . . . . .10
Discrimination . . . . . . . . . . . . . . . . . . . . .10
Notch . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Zap . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Audio Target Identification . . . . . . . . . . . . . .13
Target and Depth Display . . . . . . . . . . . . . . . .14
Sensitivity Adjustment . . . . . . . . . . . . . . . . . .15
In The Field Techniques . . . . . . . . . . . . . .16-18
Trouble Shooting . . . . . . . . . . . . . . . . . . . . . .19
Treasure Hunter’s 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. The Discovery 2200 incorporates proprietary Squelch-Tech® circuitry to eliminate false signals from severe ground conditions
3
ASSEMBLY
Assembly is easy and requires
●1 Position the lower stem (the straight with the silver button toward the back Using the bolt and knurled knob,
attach the search coil to the 
plastic extension protruding 
from the lower stem. 
●2 Press the button 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.
●3 Wind the cable securely around the stem.
●4 Insert the plug into the matching connector on the right underside of the detector body. Be sure that the key-way and pins line up correctly.
Caution: Do not force the plug in. Excess force will cause damage. To disconnect the cable, pull on the plug.
Do not pull on the cable.
4
ASSEMBLY
Adjusting the Arm Rest
Most people will find the standard position of the arm rest very comfortable. Very large forearms and short forearms (particularly children’s arms), can be accommodated by moving the arm rest forward.
The arm rest is adjustable to three positions.
To adjust, remove the screw from the underside, then press the silver button and move the arm rest to one of the alternate positions. If you cannot fully depress the button with your finger, use a narrow object, such as the blunt end of a ballpoint pen. The arm rest must be twisted with moderate force to move it to an alternate position; this adjustment is usually made infrequently.
N
TIO
A
IN
IM
R
C
IS
D
ITY
IV
IT
S
N
SE
If desired for added stability, re-install the screw. The screw is not re-installed in the furthest forward position.
If the button becomes disengaged inside of the tube, remove the plastic cap at the end of the tube to access the clip inside. With a pair of needle-nose pliers, reengage the button. Then replace the plastic cap.
5
BATTERIES
Use ALKALINE batteries only.
To install the batteries:
● |
Remove |
the |
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1 |
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battery cover by |
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disengaging |
the |
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● |
clip at the back. |
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Align the polarity |
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2 |
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of |
the |
batteries |
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correctly, |
with |
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the |
positive |
"+" |
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toward |
the |
coil |
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plug connection, |
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as |
indicated |
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the |
+ |
and |
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indicators |
on |
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housing. |
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●3 Insert (2) 9-Volt ALKALINE batteries, with the contacts pointed inward, and press down on the back of the batteries to snap them into place.
Some brands of batteries will require moderate force to clear the
retaining tabs.
IN CASE OF LOOSE BATTERIES
If the batteries fit loosely, and you want to guarantee a very secure electrical contact, insert a piece of paper or thin cardboard between the back of the battery and the supporting post.
●4 Replace the battery door.
The Low Battery Indicator will come on and stay on if the batteries need to be replaced.
Most metal detector problems are due to improperly installed batteries, or the use of non-alkaline or discharged batteries. If the detector does not turn on, please check the batteries.
If the detector does not turn on, check to see that the batteries fit tightly. If the batteries are loose, press them forward while pressing the POWER touchpad. To tighten up a loose battery, wedge a piece of paper or thin cardboard between the back of the battery and the supporting post, as illustrated above.
6
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