Hobby F2 Operating Manual

OPERATING MANUAL

Use ALKALINE

Batteries ONLY

2

TABLE OF CONTENTS

SSeettttiinngg UUp

p

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

3

BBaatttteerriiees

s

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

4

HHeeaaddpphhoonnee JJaacckk .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..4

4

QQuuiicckk--SSttaarrtt DDeemmo

o

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

55--6

6

CCoonnttrrooll PPaanneell .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..77--9

9

SSeennssiittiivviittyy .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..7

7

DDiissccrriimmiinnaattiioonn CCoonnttrrooll .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..8

8

PPiinnppooiinntt .. .. .. .. .. .. .. .. .. .. ..

.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..9

9

NNoottcchh .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..9

9

44--TToonnee AAuuddiioo SSyysstteemm .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..110

0

DDeepptthh aanndd TTaarrggeett DDiissppllaayy .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..1111--112

2

TTaarrggeett RReeaaddoouutt TTaabbllee .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..112

2

SSeennssiittiivviittyy AAddjjuussttmmeennt

t

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

113

3

EElleeccttrroommaaggnneettiicc I

I

nntteerrffeerreennccee .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..113

3

SSeevveerree GGrroouunndd CCoonnddiittiioonnss .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..113

3

SSeeaarrcchh TTeecchhnniiqquuees

s

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

114

4

TTaarrggeett VVeerriiffiiccaattiioonn .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..114

4

PPiinnppooiinnttiinngg wwiitthh mmoottiioonn mmooddeess .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..114

4

TTaarrggeett PPiinnppooiinnttiinngg ((NNoo mmoottiioonn)

)

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

115

5

CCooiill DDrriifftt .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ..110

0

TARGET PINPOINTING

After you have identified a target using a motion mode of detection, press to identify the target’s exact location. This technique can yield more information about the target’s shape and size and also find its exact location to facilitate excavation.

UUssi

i

11.

.

22.

.

33.

.

3

SETTING UP

No tools required.

l

1

Insert the lower stem (plastic tube) into the middle stem.

l

2

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.

l

3

Press the button on the middle stem, and slide the lower/middle stem assembly into the upper s-shaped 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.

l

4

Wind the cable securely around the stems.

l

5

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.

l

6

After the stem length is adjusted to your height, tighten the two locking collars to stabilize the stems.

Arm Rest Adjustment

If you wish to change the position of the arm rest, remove the screw and move the arm rest to one of the alternate hole locations.

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.

Searchoil

Knurled Knob

Middle Stem

Locking Collar

4

TTwwoo 99--VVoolltt bbaatttteerriiees

s

aarree ssuupppplliieedd wwiitth

h

tthhee FF22.

.

The batteries have been inserted backwards in the compartment for storage during transportation. Please remove batteries, turn them around, and install correctly.

Use

AALLKKAALLIINNE

E

batteries only.

DDoo nnoott mmiixx oolldd aanndd nneew

w

bbaatttteerriieess.

.

To install the batteries:

l

1

Remove the battery cover by disengaging the clip at the back. DDoo nnoott hhiinnggee ddoooorr uuppwwaarrd

d

; pull straight back

l

2

Align the polarity of the batteries correctly, with the positive "+" toward the coil plug connection, as indicated by the + indicator on the housing.

l

3

Insert (2) 9-Volt

AALLKKAALLIINNE

E

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.

l

4

Replace the battery door.

Most metal detector problems are due to improperly installed batteries, or the use of non-alkaline or discharged batteries.

IIff tthhe

e

ddeetteeccttoorr ddooeess nnoott ttuurrnn oonn,, pplleeaassee cchheecckk tthhee bbaatttteerriieess..

BATTERIES

ELECTROMAGNETIC INTERFERENCE

Use the Sensitivity Control is to eliminate Electromagnetic Interference (EMI). The F2 metal detector is an extremely sensitive device; the search coil creates its own magnetic field and acts like an antenna. If your detector beeps erratically when the search coil is motionless, the unit is probably detecting another electromagnetic field.

Common sources of EMI are electric power lines, both suspended and buried, motors, and household appliances like computers and microwave ovens. Some indoor electronic devices, such as dimmer switches used on household lighting, produce severe EMI and can cause the detector to beep erratically. Other metal detectors also produce their own electromagnetic fields; so if detecting with a friend, keep two metal detectors at least 20 feet apart.

If the detector beeps erratically,

SSeen

n

In most urban environments, you should be able to search without chatter from interference at the default sensitivity setting (default setting is the sensitivity level at power-up, 4 bars), or at one level reduced from default. At maximum sensitivity, the F2 will “chatter” in proximity to underground or overhead power lines, or to indoor or outdoor electrical devices. In fact, if you notice rapid chatter with the searchcoil near the ground, you may be able to trace the approximate location of the underground power lines by following the chatter.

To manage chatter, which is most likely from electrical interference:

SEVERE GROUND CONDITIONS

A secondary use for the Sensitivity Control is to reduce false detection signals caused by severe ground conditions. While the detector contains circuitry to eliminate the signals caused by most naturally occurring ground minerals, 100% of all ground conditions cannot be anticipated. Highly magnetic soils found in mountainous and gold-prospecting locations can cause the detector to emit tones when metal objects are not present. High saline content soils and sands can sometimes cause the detector to beep when no metal target is present.

If the detector emits false, non-repeatable, signals, REDUCE THE SENSITIVITY.

SENSITIVITY ADJUSTMENT

HEADPHONE JACK

Using headphones (not supplied) with your metal detector makes it easier to identify subtle changes in the threshold levels for better detection results, and also reduces drain on the batteries. Any stereo headphone with 1/4” jack will work.

QUICK-START DEMONSTRATION

II.. SSuupppplliieess NNeeeeddeed

d

• A Nail • A Quarter

• A Zinc Penny (dated after 1982) • A Nickel

IIII.. PPoossiittiioonn tthhee DDeetteeccttoor

r

a. Place the detector on a

table, with the search coil hanging over the edge. (or better, have a friend hold the detector, with the coil off the ground).

b

. Keep the searchcoil

away from walls, floors, and metal objects.

c. Remove watches, rings

and other jewelry or metal objects from hands and wrists.

d. Turn off appliances or lights that cause electromagnetic

interference.

e. Pivot the search coil back toward the detector body.

IIIIII.. PPoowweerr UUp

p

Press .

IIVV.. WWaavvee eeaacchh OObbjjeecctt oovveerr tthhee

SSeeaarrcchh CCooiil

l

a.Notice a different tone for

each object.

LLooww TToonnee:

:

Nail

LLooww MMiidd TToonnee:

:

Nickel

MMeeddiiuumm TToonnee:

:

Zinc Penny

HHiigghh TToonnee:

:

Quarter

b.Motion is required. Objects

must be in motion over the search coil to be detected.

VV.. PPrreessss DDIISSCCRRIIMMIINNAATTIIOON

N

Twice

a. The first press illuminates

all target icons.

b. The second press turns

off the “IRON” icon.

Quick-Start Demo continued on next page

5

e

6

VVII..WWaavvee tthhee NNaaiill oovveerr tthhee SSeeaarrcchh CCooiil

l

a. The Nail will not be detected. b.

The Nail has been "Discriminated Out."

VVIIII.. PPrreessss DDIISSCCRRIIMMIINNAATTIIOONN

55 ttiimmeess.

.

Only the Dime, Quarter

and + icons will remain illuminated.

VVIIIIII.. WWaavvee aallll oobbjjeeccttss oovveerr tthhe

e

SSeeaarrcchh CCooiil

l

The Nail, Nickel and Penny

will not be detected.

The quarter will be

detected with a high tone.

IIXX.

.

• Press NOTCH

• Immediately press DISCRIMINATION

• Press NOTCH again

• The “Nickel” icon is again illuminated.

• You have “Notched In” the nickel

XX..WWaavvee tthhee nniicckkeell oovveerr tthhe

e

sseeaarrcchh ccooiill.. The nickel is detected.

XXII..PPrreessss aanndd hhoolldd PPIINNPPOOIINNTT.

.

Hold a coin motionless

over the search coil.

• All Metal objects are now detected.

•

One monotone sound indicates the presence of any type of metal.

•

Depth is indicated in

inches. Move a coin

toward & away from the

search coin. Watch the

depth indicator change.

QUICK-START DEMONSTRATION

(continued)

DEPTH AND TARGET DISPLAY

READING THE DISPLAY

The Liquid Crystal Display (LCD) shows the PROBABLE identification of the targeted metal, as well as the PROBABLE depth of the target, in inches.

An arrow will illuminate under the target category where an object is best classified, and stay illuminated until another target is identified.

The detector will normally register a repeating, unchanging target identification when a buried target has been located and identified. If, upon repeated passes over the same spot, the target identification reads inconsistently, the target is probably a trash item, oxidized metal, or too deep to be classified accurately. With practice, you will learn to unearth only the more repeatable signals.

The segment identifications are highly accurate, when detecting the objects described on the label. However, if you register in a given category for an unknown buried object, you could be detecting a metallic object other than the object described on the label, but with the same metallic signature. Also, the greater the distance between the target and the coil, the less accurate the target identification.

GGO

O

register on the left side of the LCD scale. Gold will register depending upon its size. The smaller the gold object, the further to the left it will register.

G

SSm

m

Iron or Foil.

7

TThhee ooppeerraattiinngg ccoonnttrroollss aarree aass ffoolllloowwss:

:

SENSITIVITY

AND

These controls change the detector’s sensitivity; higher settings enable detection of deeper targets. At power-up, the detector is pre-set to 75% of maximum sensitivity. At minimum, the sensitivity is 35% of maximum. With each press of the

oor

r

touch pads, the sensitivity level is displayed on the bar graph on the left of the display. Upon reaching the minimum or maximum sensitivity setting, the detector will beep twice.

While higher levels of sensitivity enable detection of deeper targets, operation at high levels of sensitivity make the detector

mmoorree ssuusscceeppttiibblle

e

ttoo eelleeccttrroommaaggnneettiicc iinntteerrffeerreennccee..

Higher sensitivity settings can also lead to false signals in difficult ground conditions. Use lower sensitivity settings to suppress interference or false signals from soil minerals when necessary.

IIff tthhee ddeetteeccttoorr ““CChhaatttteerrss””,, rreedduuccee sseennssiittiivviittyy.

.

CONTROL PANEL

DISCRIMINATION AND

Press DISCRIMINATION or at any time (other than immediately after pressing ) to adjust the target discrimination level.

aanndd

will increase or decrease the level of discrimination. Each press of the pads will cause a target icon to appear or disappear on the display. When an icon is not illuminated, the corresponding target category will be eliminated from detection. No audible tone nor target-icon will appear when the searchcoil passes by an object in a category which is not illuminated.The Dime, Qtr, and

+

target categories cannot be eliminated from detection. While searching, the only target category icons visible are those indicating detected targets; no more than one is visible at a time while searching. In order to display the discrimination status, press either the DISC or key. The first press of either DISC or displays the current discrimination status (eliminated target categories are not displayed — all accepted target categories are illuminated). This first key press does not change the discrimination status; each subsequent DISC or will change the discrimination setting, with icons either disappearing or reappearing.

8

CONTROL PANEL

PINPOINT

Press and hold to activate this feature This is a static detection mode; no coil motion over the target is required to detect metal while pinpoint is depressed. This feature is most effective for pinpointing the exact location of small buried objects. Reduced sensitivity, and thus a smaller search field, can be achieved by pressing the pad while an object is in the coil’s detection field. The greatest sensitivity to large, deeply-buried objects is achieved with this mode.

NEW

CONTROL PANEL

NOTCH

This control allows you to selectively include or exclude target categories from detection.

To use the

11.

.

22.

.

33.

.

Practice by pressing the pad in conjunction with the function will quickly become obvious.

9

PINPOINT

Press and hold to activate this feature This is a static detection mode; no coil motion over the target is required to detect metal while pinpoint is depressed. This feature is most effective for pinpointing the exact location of small buried objects. Reduced sensitivity, and thus a smaller search field, can be achieved by pressing the pad while an object is in the coil’s detection field. The greatest sensitivity to large, deeply-buried objects is achieved with this mode.

NEW

CONTROL PANEL

NOTCH

This control allows you to selectively include or exclude target categories from detection.

To use the

NNOOTTCCH

H

feature.

11.

.

First press .

22.

.

Then immediately press

DDIISSCCRRIIMMIINNAATTIIOON

N

or . Each press of DISC will change the status of a target category (starting with iron, from left to right). If an icon was previously illuminated, indicating inclusion, then it will disappear, indicating that it is now eliminated from detection. If an icon was previously turned off, then it will reappear, indicating inclusion.

33.

.

Press a second time to save your notch setting.

TTIIMMEE--OOUUTT::

if you do not press NOTCH after several seconds, the detector will beep twice and return to normal operation, without changing the notch setting.

Only one category can be notched at a time. To program multiple notches, press again and change another target category.

You may program any combination of detected and eliminated target categories using the

DDIISSCCRRIIMMIINNAATTIIOON

N

and

NNOOTTCCHH

functions.

Practice by pressing the pad in conjunction with the

DDiissccrriimmiinnaattiioon

n

aanndd

ppaadds

s

; their

function will quickly become obvious.

TThhe

e

SENSITIVITY

These controls change the detector’s sensitivity; higher settings enable detection of deeper targets. At power-up, the detector is pre-set to 75% of maximum sensitivity. At minimum, the sensitivity is 35% of maximum. With each press of the the bar graph on the left of the display. Upon reaching the minimum or maximum sensitivity setting, the detector will beep twice.

While higher levels of sensitivity enable detection of deeper targets, operation at high levels of sensitivity make the detector

ttoo to false signals in difficult ground conditions. Use lower sensitivity settings to suppress interference or false signals from soil minerals when necessary.

IIff tth

h

CONTROL PANEL

110

0

4-TONE AUDIO SYSTEM

While the LCD (Liquid Crystal Display) is very accurate in identifying buried objects, the user in the field does not always maintain the display screen in his field of vision. Therefore, we have incorporated an audio feedback mechanism to alert the user to the nature of buried objects. This audio feedback system first alerts the user to the presence and classification of objects, whose nature and location can be confirmed using the LCD display.

The 4-tone audio target identification system functions only in the motion modes of operation. The detector must be in the DISCRIMINATION mode, as indicated on the display. In PINPOINT mode, the detector will emit only a monotone sound.

The detector can sound four different tones, depending on the object detected.

LLOOWW TTOONNE

E

Ferrous objects, such as iron and steel, will induce a low tone. The smallest gold objects can also induce a low tone.

LLOOWW--MMIID

D

Pull-Tabs, nickels & smaller gold

MMEEDDIIUUMM TTOONNE

E

Newer pennies (post-1982), larger gold objects, zinc, and small brass objects, will induce medium tones. Many recent vintage non-U.S. currencies will induce medium tones.

HHIIGGHH TTOONNE

E

Silver and copper coins, larger brass objects and older pennies (pre-1982), will induce high tones. Quarters, dimes and other precious coins fall into this category.

Audio Target Identification (ATI) classifies metals into four categories.

LLOOWW TTOONNE

E

Nails, Iron Objects,

& Smallest Gold Objects

LLOOWW--MMIIDD TTOONNE

E

Pull Tabs, Nickels,

& Smaller Gold

MMEEDDIIUUMM TTOONNE

E

Zinc Pennies (Post 1982),

Larger Gold Objects

HHIIGGHH TTOONNE

E

Copper, Silver & Brass

Copper Pennies (Pre 1982)

111

1

DEPTH AND TARGET DISPLAY

READING THE DISPLAY

The Liquid Crystal Display (LCD) shows the PROBABLE identification of the targeted metal, as well as the PROBABLE depth of the target, in inches.

An arrow will illuminate under the target category where an object is best classified, and stay illuminated until another target is identified.

The detector will normally register a repeating, unchanging target identification when a buried target has been located and identified. If, upon repeated passes over the same spot, the target identification reads inconsistently, the target is probably a trash item, oxidized metal, or too deep to be classified accurately. With practice, you will learn to unearth only the more repeatable signals.

The segment identifications are highly accurate, when detecting the objects described on the label. However, if you register in a given category for an unknown buried object, you could be detecting a metallic object other than the object described on the label, but with the same metallic signature. Also, the greater the distance between the target and the coil, the less accurate the target identification.

GGOOLLDD TTAARRGGEETTS

S

Gold objects will register on the left side of the LCD scale. Gold will register depending upon its size. The smaller the gold object, the further to the left it will register.

GGoolldd ffllaakkees

s

will register as Iron

SSmmaallll ggoolldd iitteemmss

will register under

Iron or Foil.

MMeeddiiuumm--ssiizzeedd ggoolldd iitteemmss

will

register under Nickel or Tab.

LLaarrggee ggoolldd iitteemms

s

will register under

Tab or Zinc.

SSIILLVVEERR TTAARRGGEETTSS:

:

Silver objects will normally register to the right of the scale, under Dime, Qtr, or

+

, depending on the size of the object. The larger the object, the farther to the right it will register.

IIRROONN:

:

Ferrous objects will register on the far-left side of the target identification scale. Objects in this category could be worthless scrap, or a more valuable iron relic.

FFOOIILL::

Small pieces of aluminum foil,

like gum wrappers, will register here.

NNIICCKKEELL::

Nickels and most newer pulltabs(those that stay attached to the can) will register here.

TTAABB:

:

Pull-tabs from older beverage cans will register here. Few newer pulltabs will also register here. Many gold rings will also register here.

ZZIINNCC:

:

Newer pennies (post-1982) will register here. Many non-U.S. coins of recent vintage may also register here.

QUICK-START DEMONSTRATION

II.. SSu

u

IIII.. P

P

a. Place the detector on a

b

c. Remove watches, rings

d. Turn off appliances or lights that cause electromagnetic

e. Pivot the search coil back toward the detector body.

IIIIII.. P

P

IIVV..

VV.. P

P

Quick-Start Demo continued on next page

112

2

DEPTH AND TARGET DISPLAY

DDIIMMEE:

:

Dimes and pre-1982 pennies will register here. Older, pre-1982, pennies are composed of copper, which has a metallic signature similar to a dime. Most copper coins will register here. Steel washers, with an outside diameter similar to a dime, may also register here.

QQTTRR:

:

Quarters, “Sacawegea Quarters” &

“Susan Q. Anthony Dollars” register here.

+

:

Half-Dollar coins and Silver Dollars register here. Very large iron objects like Sewer Lids will also register here.

CCaauuttiioonn:

:

The target indications are visual references. Many other types of metal can fall under any one of these categories. While the F2 will eliminate or indicate the presence of most common trash items, it is impossible to accurately classify ALL buried objects.

DEPTH INDICATOR: (in pinpoint mode)

The Depth Indicator is calibrated to

coin-sized objects. It indicates the depth of the target, in inches. Large and irregularly-shaped objects will yield less reliable depth readings

When passing over an object, the depth indicator will light up and stay illuminated while an object is in the field of detection. the depth indicates the distance, in inches from the center of the search coil to the target.

2 DIGIT TARGET INDICATOR

The 2-digit target indicator, in the middle of the LCD display, provides a specific target value to help identify buried targets more accurately. With practice in the field, you will learn to associate target values with the probable identification of buried objects. The target value can vary each time the coil passes over the target, depending upon the angle of the object and the distance from the coil.

AAss aa ssttaarrttiinngg ppooiinntt,, rreeffeerr ttoo tthhe

e

ttaabbllee bbeellooww.

.

TTAARRGGEETT RReeaaddoouut

t

The table below lists some common approximate target value equivalents. With experience in the field, you will recognize many types of metals by their numeric value.

TTYYPPIICCAALL VVAALLUUE

E

PPOOSSSSIIBBLLEE OOBBJJEECCTTS

S

0-15 Iron 25-28 Pull-Tab Tail

(broken off)

28-32 Nickel 36-42 Pull-Tab (old type) 58-62 Zinc, Penny 68-72 Dime & Wheat Cent 78-83 Quarter 86-90 Half Dollar 91-95 Silver Dollar

e

113

3

ELECTROMAGNETIC INTERFERENCE

Use the Sensitivity Control is to eliminate Electromagnetic Interference (EMI). The F2 metal detector is an extremely sensitive device; the search coil creates its own magnetic field and acts like an antenna. If your detector beeps erratically when the search coil is motionless, the unit is probably detecting another electromagnetic field.

Common sources of EMI are electric power lines, both suspended and buried, motors, and household appliances like computers and microwave ovens. Some indoor electronic devices, such as dimmer switches used on household lighting, produce severe EMI and can cause the detector to beep erratically. Other metal detectors also produce their own electromagnetic fields; so if detecting with a friend, keep two metal detectors at least 20 feet apart.

If the detector beeps erratically,

RREEDDUUCCEE TTHHEE SSEENNSSIITTIIVVIITTY

Y

by pressing the

SSeennssiittiivviitty

y

Pad on the left of the control panel.

In most urban environments, you should be able to search without chatter from interference at the default sensitivity setting (default setting is the sensitivity level at power-up, 4 bars), or at one level reduced from default. At maximum sensitivity, the F2 will “chatter” in proximity to underground or overhead power lines, or to indoor or outdoor electrical devices. In fact, if you notice rapid chatter with the searchcoil near the ground, you may be able to trace the approximate location of the underground power lines by following the chatter.

To manage chatter, which is most likely from electrical interference:

11..RREEDDUUCCEE tthhee SSEENNSSIITTIIVVIITTY

Y

until the chatter stops.

22..

Try sweeping it over the ground. If the F2 chatters while held still, or held up in the air, it may be much quieter when sweeping over the ground.

SEVERE GROUND CONDITIONS

A secondary use for the Sensitivity Control is to reduce false detection signals caused by severe ground conditions. While the detector contains circuitry to eliminate the signals caused by most naturally occurring ground minerals, 100% of all ground conditions cannot be anticipated. Highly magnetic soils found in mountainous and gold-prospecting locations can cause the detector to emit tones when metal objects are not present. High saline content soils and sands can sometimes cause the detector to beep when no metal target is present.

If the detector emits false, non-repeatable, signals, REDUCE THE SENSITIVITY.

SENSITIVITY ADJUSTMENT

SETTING UP

No tools required.

l

1

l

2

l

3

l

4

l

5

l

6

Arm Rest Adjustment

If you wish to change the position of the arm rest, remove the screw and move the arm rest to one of the alternate hole locations.

Caution: Do not force the plug in.

Searchoil

Knurled Knob

Middle Stem

Locking Collar

114

4

SEARCH TECHNIQUES

(in DISC mode)

TTaarrggeett VVeerriiffiiccaattiioon

n

After detecting a target, do the following:

11.

.

Walk around the target in a circle.

22.

.

While circling the target, continue sweeping the searchcoil across the target.

33.

.

Sweep once every 30° or 40° of the circle.

If the tone does not change and the target ID value is consistent as you circle the target, you can be highly confident of the target’s identification.

If the tone or target ID changes as you circle the target, you may have multiple targets or an irregularly shaped object.

If the tone completely disappears at different angles, the target may be trash or a low-value metal.

If you are new to the hobby, dig all targets. With practice in the field, you will soon identify audible and visual target feedback with certain types of metal objects.

PPiinnppooiinnttiinngg iinn mmoottiioonn ((nnoott ppiinnppooiinntt)) mmooddee:

:

11.

.

Sweep over target in narrowing side-to-side pattern

22.

.

Take visual note of spot on ground where “beep” occurs.

33.

.

Step 90° to the side of the target

44.

.

Sweep coil over same area, at 90° to 1st sweep pattern.

55.

.

This pinpoints the target location with an “X”

COIL MOVEMENT

When swinging the coil, be careful to keep it level with the ground about 1/2 inch from the surface. Never swing the coil like a pendulum.

WRONG

CORRECT

115

5

TARGET PINPOINTING

(no-motion PINPOINT mode)

After you have identified a target using a motion mode of detection, press to identify the target’s exact location. This technique can yield more information about the target’s shape and size and also find its exact location to facilitate excavation.

UUssiinngg

:

11.

.

Position the searchcoil just barely off the ground, and to the side of the target.

22.

.

Press and hold and raise the searchcoil about 2 inches. Lifting the searchcoil away from the ground makes the ground signal go negative, so the machine is silent.

33.

.

Now move the searchcoil slowly across the target, and you can locate it by the sound. The target is located directly under where the sound is loudest.

NNaarrrrooww IItt DDoowwnn:

:

11..

To narrow the response further, position the

center of the searchcoil near the center of the

response pattern, but not directly over the center.

22..

Release, then press and hold again again.

33.

.

Repeat this narrowing procedure to narrow the

field of detection further.

NNoottee::

Depth indication is less accurate after

narrowing.

COIL DRIFT

If you keep depressed for continuous searching,

realize that drift will occur over time, causing the

detector to gain or lose sensitivity. Periodic

retuning of the detector is required to

minimize drift; release and press to

retune.

55--YYEEAARR LLIIMMIITTEEDD WWAARRRRAANNTTY

Y

The F2 metal detector is warranted against defects in materials and workmanship under normal use for five years from the date of purchase to the original owner.

Damage due to neglect, accidental damage or misuse of this product is not covered under this warranty. Decisions regarding abuse or misuse of the detector are made solely at the discretion of the manufacturer.

Proof of Purchase is required make a claim under this warranty.

Liability under this Warranty is limited to replacing or repairing, at our option, the metal detector returned, shipping cost prepaid to Fisher Labs. Shipping cost to Fisher Labs is the responsibility of the consumer.

To return your detector for service, please first contact Fisher Labs for a Return Authorization (RA) Number. Reference the RA number on your package and return the detector within 15 days of calling to:

Fisher Labs

1465-H Henry Brennan Dr.

El Paso, TX 79936

Phone: 915-225-0333 ext.118

Warranty coverage does not include the cost of transporting the detector back to an owner who is located outside of the United States of America.

1465-H Henry Brennan, El Paso, TX 79936 • (915) 225-0333

Fisher®is a registered trademark of Fisher Research Labs

www.fisherlab.com