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Fisher F22 User Manual

Fisher F22
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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
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Consult the dealer or an experienced radio/TV technician for help.
CE
The manufacturer declares that the minimum ESD performance criteria is 1) the unit shall not
be permanently damaged and 2) operator intervention is allowed.
This product is RoHS compliant.
This product meets the requirements of Industry Canada: CAN ICES-3 B/NMB-3 B.
22
TROUBLESHOOTING GUIDE
SYMPTOM CAUSE SOLUTION
Detector chatters, • Using detectorUse detector
beeps erratically indoors outdoors only
or has low • Using detector near • Move away
sensitivity power lines
from power lines
• Using 2 detectors • Keep 2 detectors
in close at least 6 meters
proximity (20’) apart
• Environmental Reduce sensitivity
electromagnetic until erratic
interference signals cease
Low speaker
Discharged battery
• Replace battery
volume
• Wrong type of • Use alkaline
battery batteries
Display does not lock
• Multiple targets
Sweep coil at
on to one Target-ID present different angles
or detector emits Highly mineralized • Move to a
multiple tones soil different area
• Sensitivity set
• Reduce sensitivity
too high
No power, no sounds
• Dead battery • Replace batteries
• Cable not
Check connections
connected securely
Do not mix old and new batteries. Use alkaline batteries.
Do not mix alkaline, standard (zinc-carbon), or
rechargeable (NiCad, NiMH, etc.) batteries.

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Fisher F22 Specifications

General IconGeneral
Operating Frequency7.69 kHz
Weight2.3 lbs (1.04 kg)
Batteries2x AA
Pinpoint ModeYes
Warranty5 years
Depth IndicatorYes
Display TypeLCD
Headphone JackYes, 1/4 inch
Search ModesJewelry, Coin, Artifact, Custom
Water ResistanceWeatherproof
Audio Tones4
Target-ID0-99 numeric
Ground BalanceFactory preset
DiscriminationYes
Search Coil9-inch Concentric Elliptical Waterproof Coil
Sensitivity Levels10 levels

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