DetectorPro Headhunter, Headhunter Diver Wader Owner's Instruction Manual

TM

HEADHUNTER

D I V E R W A D E R

Owner

Instruction

Manual

TM

innovative treasure hunting concepts

INTRODUCTION

2

Thank you for buying our HEADHUNTER metal
detector. You have purchased one of the most compact
underwater metal detectors in the world. Not only does
this metal detector contain today's most innovative
electronics, it is the first water detector that has all the
electronics built into the headphones. By eliminating a
control housing, weight of the detector is significantly
reduced and so is your arm fatigue. When you travel, the
HEADHUNTER also takes up very little room. All of this is
possible because of our innovative micro circuitry and
packaging design. The HEADHUNTER was engineered to
perform best in both salt water and fresh water, but it is
also a very good land hunter as well. We feel it is a true
universal application metal detector.

HEADHUNTER opens up a whole new world of
excitement. Thousands of valuables are continuously lost
each year and you can now start finding them. Learn the
operation of your new metal detector well, do site
research, obey the law, and respect the rights of others. If
you do all of the above, you will have an enjoyable,
successful hobby that will give you pleasure and relaxation
for years to come.

Happy hunting and good luck,

Gary Storm

TM

HEADHUNTER

D I V E R W AD E R

ASSEMBLY — WADER

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SENS

Searchcoil

Nylon Thumbnut & Stud Assemblies

for Isolator and Arm Cups (3)

Nylon Wingnuts &

Stud Assembly

Searchcoil Cable

Headphones

w/ Circuitry

& Controls

(batteries

not included)

Middle Shaft

Spring Buttons (shaft assembly & adjustment)

®

Velcro Cable Anchor

Isolator &

®

Velcro Cable Anchor

Lower Shaft

Arm Cup Halves

(adjustable)

Upper Shaft

w/ Foam Handgrip

NOTE: All parts are utilized in the WADER

configuration. WADER is waterproof up

to 6 feet. CAUTION: WADER model can be

accidentally dropped and submerged in

water, but not used for Scuba diving.

ASSEMBLY — DIVER

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Searchcoil

Nylon Thumbnut & Stud Assemblies (3)

Nylon Wingnuts

& Stud Assy

Searchcoil Cable

(cable wrap on isolator not shown for clarity)

Headphones

w/ Circuitry

& Controls

(batteries

not included)

Waterproof

Connector

(for optional

searchcoils)

Middle Shaft (unused)

*Spring Button Unit (removed from upper shaft)

®

Velcro Cable Anchor

Lower Shaft (unused)

Arm Cup Halves (adjustable)

Upper Shaft w/ Foam Handgrip

NOTE: *Depress spring buttons in Upper

Shaft and remove spring button unit.

Lower & Middle Shafts unused. DIVER

model can also be used in the WADER

configuration.

TERMINOLOGY

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If you are new to metal detecting, we have provided
definitions below to help you better understand
terminology used in this manual. The following was
reprinted with permission from: DETECTORIST, A How-To
Guide to Better Metal Detecting, by Robert H. Sickler.

AIR TEST - A test to determine the maximum sensitivity a
metal detector is capable of under ideal conditions. Various
sized metal samples are held beyond the searchcoil
bottom at varying distances to determine the limits of
audio or visual response. Air tests are not accurate
indicators of ground penetration ability. (see BENCH TEST)

ALKALINE - A grade of battery composition which sustains
higher current drain and possesses a greater shelf life than
basic carbon-zinc types.

BENCH TEST - Another form of air test used to define
which discriminate settings accept or reject various target
samples. Detector is placed upon a stationary, nonmetallic
rest and samples are manually passed across the bottom of
the searchcoil.

CARBON-ZINC - The standard or basic grade of drycell
battery.

DISCRIMINATION - Circuitry and the mode of operation in
which audio or visual responses from undesired metal
objects are intentionally eliminated.

GROUND BALANCE - A condition or mode of operation in
which the detector is adjusted to optimally reduce the
interference that ground mineralization has on metal
targets.

MOTION DISCRIMINATOR - A detector requiring constant
searchcoil motion to reduce the effect ground mineral
interference has on its discriminate function.

PINPOINTING - The act of aligning the center of target
response width to the designated searchcoil center for
accurate location and careful recovery.

SENSITIVITY - The measure of a metal detector's capacity
to sense changes in conductivity throughout the pattern
of detection set forth by the searchcoil configuration. (see
AIR TEST)

TARGET - Any buried or hidden object which a metal
detector responds to.

VOLUME CONTROL - A metal detector control which
regulates the loudness of target response.

CONTROLS

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TM

innovative treasure hunting concepts

0

DISC

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5

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9

10

SENS

0

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9

10

OFF

VOL

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HEADHUNTER DIVER & WADER models have three
controls for the micro-encapsulated circuitry located in
one sealed earcup of the headphones. Batteries are found
in the other earcup and are user accessible.

The Discrimination (DISC) control has “stay-put”
segmented position adjustments. The Volume (VOL) and
Sensitivity (SENS) control adjustments are continuous and
not segmented.

Segmented controls allow the operator to make
adjustments without removing the headphones to view
the position numbers. Once discrimination points are
learned, the operator simply moves the control to the zero
stop position and counts the segment clicks to make the
desired adjustment. This only requires learning where the
three controls are located and the starting points of each
control. The control earcup should be worn on the side of
the head opposite the arm used to sweep the searchcoil
rod — thus giving a free hand to comfortably make
adjustments. The Sensitivity control can be adjusted
backwards from maximum (“10”) to lessen the effects of
ground mineralization and small surface trash. Obviously
the Volume control is set to the user’s preference and
does not require a secure position. The “stay-put”
segmentation of the Discrimination control is the most
user critical. Having this control accidentally lose
adjustment could possibly make you lose some valuable
targets if set too high. NOTE: Diver model has a

waterproof connector for changing to optional
searchcoils.

DISCRIMINATION POINTS

7

Bench test your detector in an area free of metal and electrical
interference. For each item, return the DISC control to “0” and
rotate the knob while passing each item below the searchcoil.
Stop the knob when the item no longer signals or the sound
character becomes broken. This number will be a discrimination
reference point. It will not be possible for you to test all items on
the list, but this will give you an idea what different levels of
discrimination will do to your target. The items below are in
order of conductivity. Please note the good items mixed with the
trash items.

COMMON NAIL
FOIL
THIN RINGS (14K)
"TAB" OF PULLTAB
THIN RINGS (10K)
MEDIUM RINGS (14K)
NICKEL COIN (5 CENTS)
PULLTAB (WHOLE)
$2.5 GOLD COIN
"RING" FROM PULLTAB
THICK WEDDING BAND (14K)
THIN RING (STERLING SILVER)
3-CENT COIN (SILVER)
SQUARE TAB
$5 GOLD COIN
SMALL CLASS RING (10K)
INDIAN HEAD CENT
SCREWCAP (ALUMINUM)
HALF-DIME (SILVER)
ZINC CENT (COPPER PLATED)
LARGE CLASS RING 10K
2-CENT COIN
½ REALE COIN (SILVER)
BARBER DIME
"WHEAT" CENT
HALF-CENT (COPPER)
$20 GOLD COIN
CLAD DIME
1 REALE COIN (SILVER)
MERCURY/ROOSEVELT DIME (SILVER)
LARGE CENT (COPPER)
CLAD QUARTER
QUARTER (SILVER)
HALF-DOLLAR (SILVER)
DOLLAR COIN (SILVER)

OPERATION

8

Operating Instructions:

The HEADHUNTER metal detector is one of the
simplest metal detectors to use. It employs fully
automated, ground balanced motion-discrimination
circuitry. The searchcoil must be in slight motion to
maintain audible target signal. The following is the basic
startup procedure for Diving & Wading.

1. Turn HEADHUNTER power ON. Set Volume to level

where you can hear target signals comfortably. This can
be accomplished by passing a coin back and forth under
the searchcoil. Regulator bubble noise can reduce your
hearing range and volume level should be increased
accordingly.

2. Turn the Sensitivity control fully clockwise to the

maximum level. If you hear chatter or static, reduce
level until no interference is audible. In salt water, it may
be necessary to reduce sensitivity. Your HEADHUNTER is
equipped with a quality "stay put" segmented
potentiometer for the Discrimination control. Sensitivity
and Volume are continuous turn controls. The Sensitivity
and Volume adjustments should be made according to
how your detector reacts in salt and fresh water.

3. Next adjustment will be setting the Discrimination level.

After learning where unwanted items will be
discriminated out, you can adjust this before entering
the water. If you want to change Discrimination levels
once operating in water without having to view the
control, just simply count knob clicks from the "0"
position. Again, bench testing will teach you what click
count setting certain objects are eliminated from audio.

4. Swing your coil back and forth slowly over the water's

bottom. Keep the coil as close to the bottom as
possible. Solid sounding audio signals should always be
investigated. Pinpointing a target is accomplished by
raising the searchcoil off the target and slowing the
sweep until the audio signal is centered under the coil in
opposing sweep directions.

5. Retrieving targets submerged in water is more difficult

than on land or wading. Some hunters just fan the
water to move the sand while others will carry a special
digging tool. Always carry a small "goody" bag to deposit
and transport your finds. Please remove and dispose of
all trash you find. No one likes digging it up more than
once!

(continued on page 9)

OPERATION

9

6. With experience you will become good at retrieving

finds no matter how bad the visibility.

Diving

Diving with the HEADHUNTER DIVER is not only fun,
but very rewarding. People have been losing objects in the
water since the human race began. You now can start
finding your share of these lost valuables with your

HEADHUNTER metal detector. CAUTION: Do not attempt
to dive unless you complete a thorough diver training
course taught by a certified instruction agency.

Most treasure divers look for coins and jewelry. Every
town has a beach or some type of public swimming area.
Most beaches are littered with trash objects than
neighboring land sites. We suggest you use as little
discrimination in the water as possible. When you first get
your detector, bench testing it with various sizes of gold
and silver rings and coins will train you how much
discrimination will be needed and at what numerical
settings. When you make your first dive, we suggest not
using the discriminator at all until you gain some water
hunting experience. In time you will learn how to retrieve
targets even when water visibility is minimal. There are
many good books on the market that teach water hunting
with a metal detector. We suggest you learn all you can by
reading about the many different searching and retrieval
techniques. However, nothing will replace gaining your
own experience.

Wading

Control setup for wading is the same as the above
Diving procedure with the only difference being you can't
always see or reach the water bottom where your
searchcoil is. Most experienced waders purchase a quality
long-handled scoop and floating sifter system. When you
hear a signal that you want to retrieve, pinpoint it and use
your long-handled scoop to retrieve the target.

Note: WADER model is not designed for diving pressures. WADER is
waterproof up to 6 feet and can be accidentally dropped and
submerged in water, but not used for Scuba diving. WADER & DIVER
models do not have a battery check system. They can be operated
continuously up to 50 hours on a fresh set of alkaline batteries. The
operator is advised to keep track of time logged on each set of
batteries to avoid shutdown in the middle of a hunt. Always carry
fresh batteries as a backup on every hunt. This is common practice
with all detectors, with or without a battery check system.

10

Battery Replacement:

Your HEADHUNTER metal detector operates with two,
9-volt standard batteries (not supplied). Hourly use can be
extended by using 9V Alkaline batteries.

To add or replace batteries on the DIVER, place a coin
between the cup plate and the round stud on the
earcup. Turn it until the cup "pops" open exposing the
battery compartment. To add or replace batteries on the
WADER, place a coin into the slot on the earcup and turn
until the cup "pops" open exposing the battery
compartment. Note the placement of the worn batteries
before removal. Remove the old batteries and insert two
fresh 9-Volt batteries into the connectors.

This earcup is O-ring sealed. Be sure to carefully clean
the O-ring, the groove it resides in and the mating halves
of the earcup. Lubricate O-ring sparingly with silicone
grease only. DO NOT USE PETROLEUM JELLY.

After batteries have been installed, carefully align the
earcup halves and press until a solid “snap” is heard. Make
sure battery connector wires are well inside of the seal
area and do not get pinched on reassembly.

Maintenance:

1. Always thoroughly rinse your HEADHUNTER in

fresh water after using it — especially in salt water.

2. Store your detector in a cool place.

3. Never store it in a manner that it will be subject to

vibration or shock.

BATTERIES & MAINTENANCE

WARRANTY

11

Record Your:

Date of Purchase:
Dealer Name/Address:

HEADHUNTER Model: q DIVER q WADER

q LANDPRO

Serial Number:

DetectorPro warrants to the original consumer
purchaser that your DetectorPro metal detector will be
free from defects in materials and workmanship under
normal use for two years (24 months) from the original
date of purchase. If your DetectorPro detector fails due
to defects in material or workmanship, DetectorPro will
repair or replace at its option all necessary parts without
charges for parts or labor.

This warranty gives you specific legal rights, and you
may have other legal rights that vary from state to state.
The warranty is non-transferable. Your warranty
registration card must be sent in 10 days from date of
purchase to validate your warranty.

The warranty excludes batteries, cable breakage due to
improper flexing, wear on searchcoil housing, and wear of
cable protection. Also excluded are metal detectors that
have been abused, altered, or repaired by an unauthorized
party. Opening electronics side of headphones and
tampering will void warranty.

q PULSE

TM

innovative treasure hunting concepts

1447, Route 44
Pleasant Valley, NY 12569
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Web Page: www.detectorpro.com
Tech Support: [e-mail]

TM

HEADHUNTER

D I V E R W AD E R

TM

innovative treasure hunting concepts

SPECIFICATIONS

1

Operating Search Frequency: 2.4 Khz

2

Searchcoil: 8“ Concentric, Co-Planar, RF Shielded
Audio Frequency: 400Hz

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Headphone Transducer: Piezo Electric
Search Mode: Silent search, Slow Motion Discrimination
Operating Environments: Salt water, Fresh water, Land

Submersible:

DIVER model: Waterproof to 100 feet
WADER model: Waterproof to 6 feet (no diving or

snorkeling.)

Length:

DIVER Configuration: 27 to 53“
WADER Configuration: 43 to 53“

Weight w/Batteries: 3.5 Pounds
Batteries: (2) 9-Volt Carbon Zinc, Alkaline, or Rechargeable

4

Battery Life: up to 50 hours
Warranty: 2 years

NOTES:

1. Quartz Crystal Controlled

2. Insulated against static interference

3. WADER model is waterproof to 6 feet only

4. When alkaline batteries are used in the detector

5. Specifications subject to change without notice