Fisher Labs F22 Owner's Manual
OWNER’S MANUAL
Uses two AA ALKALINE batteries only.
Do not use “Heavy Duty” batteries.
Do not use ordinary Zinc Carbon batteries.
Not for Underwater Use
DO NOT SUBMERGE
TABLE OF CONTENTS
Congratulations!
Congratulations on the purchase of your new Fisher F22™ Metal Detector. The F22 is the result of
many years of software engineering and features the latest advancements in lightweight design and
target accuracy. The F22 can be used with its default turn-on-and-go settings, or you can adjust the
detector's settings to match your hunting conditions. No longer do you need to fear the weather, the
F22 is completely weatherproof. Laugh at the rain. No longer will weather be a force that stops you
from enjoying your sport. Treasure hunting enthusiasts from around the world were involved in the
development of this revolutionary new detector. This manual has been written to help you get optimal
use of your detector so we hope you will read it thoroughly before your first outing.
Happy Hunting from Fisher Research Labs!
The F22 operates at a frequency of 7.69 kHz and comes with a 9” triangulated concentric
elliptical searchcoil. The F22 shares searchcoil compatibility with the F11and F44.
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
Batteries (use alkaline batteries) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Quick-Start Demonstration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
The Basics of Metal Detecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-10
9” Searchcoil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
How to Work the Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
The Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Depth Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Overload Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Notch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-15
Custom Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Pinpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
How to Pinpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Target-ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-17
4-Tone Target-ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Depth and Target Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-19
Target Groups and ID Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-19
Headphone Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Characteristics and Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Treasure Hunter's Code of Ethics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Page
2
TERMINOLOGY
The following terms are used throughout the manual and are standard
terminology among detectorists.
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.
ELIMINATION
Reference to a metal being "eliminated" means the detector will not emit
a tone, nor display a Target-ID, when a metal object passes through the
searchcoil'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.
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.
GROUND CANCELATION
Ground Cancelation 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 many mineralized soils.
3
CONTENTS OF BOX
The following detector components are in the box:
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3. Searchcoil
O-Ring
One installed on coil connector
and a replacement O-Ring included
in manual bag.
4. Middle
Stem
5. Lower Stem
with Bolt &
Knurled Knob
attachment
6. S-Rod
2. Armrest Assembly with
Screw and Lock-Nut
1. Control Housing
with 2 screws
Headphone
Jack Cover
ASSEMBLY
Tool Required: #1 Phillips Screwdriver
●
1 • Remove the Screw from the Armrest.
• Slide the Armrest over the end
of the S-Rod.
• Attach with Screw and Lock-Nut.
●
2 Attach Control Housing with Screws;
install back screw first.
NOTE:
• The Handgrip fits under the Control
Housing.
Handgrip may partially cover one
mounting hole. Peel back
Handgrip to expose the front hole.
• Ensure the headphone jack cover
is properly seated before attaching
the control housing.
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Battery
Compartment
(back side)
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Triangulated
Concentric
Elliptical
Waterproof
Seachcoil
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Place Headphone
Jack Cover in
recessed pocket
so it is level with
the surface of the
housing and held
in place between
the housing
and S-Rod.
Caution:
Forcing in MIDDLE STEM with CAM LOCK raised may
form a burr on cam lock. If this happens, remove burr with
knife to allow insertion.
*
Note: Very tall users can purchase the optional
Extended Lower Stem (TUBE5X), for extended reach.
5
6
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3 Position S-Rod upright.
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4 Rotate the LOCKING COLLAR fully in the counterclockwise direction.
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5 Insert your finger inside the tube and make sure the INTERNAL CAM LOCK
is flush with the inside of the tube.
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6
Insert the MIDDLE STEM into the S-ROD, with the SILVER BUTTON pointed
upward.
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7 Rotate the MIDDLE STEM until the SILVER BUTTON locates in the hole.
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8 Twist the LOCKING COLLAR fully in the clockwise direction until it locks.
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9 Repeat this process on the LOWER STEM.
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10 Using the BOLT and KNURLED KNOB, attach the SEARCHCOIL to the
LOWER STEM.
●
11
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.
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12
Wind the CABLE securely around the STEMS, leaving slack at the bottom.
●
13
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 cross-thread. When the Locking Ring is
fully engaged over the threaded connector, give it a firm turn to make sure it is
very tight. When the Locking Ring is fully engaged over the threaded connector,
it may not cover all of the threads.
ASSEMBLY
(Continued)
S-ROD
LOCKING
COLLAR
INTERNAL
CAM LOCK
SILVE R BUTTON
MIDDLE
STEM
S-ROD
MIDDLE STEM
●
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5
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7
7
The detector requires two AA batteries.
We recommend ALKALINE batteries
(not included).
Do not use ordinary “Zinc
Carbon” batteries.
Do not use “Heavy Duty” batteries.
Rechargeable batteries can also be
used. If you use rechargeables, we
recommend using a “Nickel Metal
Hydride” rechargeable battery. The
battery compartment is located on
the right side of the Control Housing.
Both batteries should be installed with
the negative terminal down.
Remove battery tube:
1. Slide the battery door off.
2. Extend the handle on the battery tube (with your finger or by using the tab
on the battery door to pry the handle into the extended position)
3. Pull on the handle to remove (do not use the battery door tab to pull the tube
out of the control housing, as this may cause damage to the battery door)
To install battery tube:
1. Position the handle on the battery tube in the lowered position.
2. Firmly push down on the battery tube, until the battery tube handle is
flushed with the housing. (The battery tube will only insert one way, with the
brass contacts facing towards the display and the hinged side of the handle
towards the back.)
BATTERY LIFE
Expect 25 to 30 hours of life from 2 AA Alkaline batteries. Rechargeable
batteries provide about 15 hours of usage per charge. Backlight increases
power consumption and decreases battery life, with significant power drain at
maximum brightness.
BATTERY INDICATOR
The battery icon has three segments plus an outline segment. The amount of
battery voltage for two ALKALINE batteries is indicated as follows:
All segments black: >2.8 volts
Right segment grey, other two black: >2.6 volts
Right segment off, other two black: >2.4 volts
Right segment off, mid grey, left black: >2.2 volts
Right and mid segments off, left black: >2.0 volts
Right and mid segments off, left grey: >1.8 volts
All segments off, outline flashing: < 1.8 volts
It is recommended to change the batteries when you see the one black segment.
SPEAKER VOLUME AND BATTERY CHARGE
You may notice the speaker volume drop while one battery segment is
illuminated. With the outline flashing, low speaker volume will be very apparent.
BATTERY DISPOSAL & RECYCLING
Alkaline batteries may be disposed of in a normal waste receptacle or
recycled. Other battery chemistries should be recycled.
BATTERIES
8
QUICK-START DEMONSTRATION
I. Supplies Needed
•
Nail (made of iron)• U.S. Quarter (or silver coin) • U.S. Nickel
•
Gold Ring • U.S. Dime • U.S. Penny, dated after 1982 (post-1982 pennies are made of Zinc)
(Most newer non-U.S. coinage also contains mostly Zinc)
II. Position the Detector
a. Place the detector on a table with the searchcoil hanging over the edge (or,
have a friend hold the detector with the searchcoil off the ground).
b. Keep the searchcoil away from walls, floors and metal objects.
c. Remove watches, rings and jewelry.
d. Turn off lights or appliances whose electromagnetic
emissions may cause interference.
e. Pivot the searchcoil back.
f. Press to power on. A series of 10 numbers will
sequence across the screen, this is the
serial number.
g. Press twice. All target categories are
now illuminated.
III. Demonstrate Modes:
a. Press MODE button twice, display indicates Artifact Mode.
b. Pass all objects over the searchcoil and notice the different tones. Notice
the target icon indicators and the large two digit Target-ID number
displayed for each item.
Nail: low tone
Nickel: medium tone
Zinc Penny: medium tone
Gold Ring: most gold rings will register with a medium tone
Dime: high tone
Quarter: high tone
IV. Demonstrate NOTCH Feature:
a. Press until “NOTCH” is illuminated.
b. Press until target icon “3” is flashing, then wait until icon stops flashing
(approximately 5 seconds). The icon will be blanked out.
c. Pass the Nickel over the searchcoil. It will not be detected. The Nickel has
been “notched” out.
d. Press 4 times, target icon 3 is now flashing, then wait until icon stops
flashing
(approximately 5 seconds). The icon will now be notched back in.
Only one target category can be notched at a time. Repeat the process to
notch additional categories
V.
Demonstrate DEPTH Indicator:
a. Pass the Nickel close to the searchcoil (about 1” away).
b. Notice the depth bar graph indicating a shallow target.
c. Wave the Nickel farther away from the searchcoil and notice additional
bar graph segments illuminating, indicating a deeper target.
VI.
Demonstrate PINPOINT feature:
a.
Press and hold . “PP” momentarily appears on the screen.
b. Hold a coin motionless over the searchcoil.
c. Lower coin toward searchcoil and then raise coin away from searchcoil.
d. Notice the sound changes as the coin distance varies.
e. Notice the depth indicator changes as the coin moves up and down.
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