Garrett ACE 150 User manual

Owner’s
Manual

© 2007 Garrett Electronics, Inc. PN 1526100.G.1207
1881 W. State Street
Garland, Texas 75042
Toll Free: 800.527.4011
Tel: [phone]
Email: [email protected]
Fax: [phone]

Ace 150 • Ace 250
1
Thank You For Choosing
Garrett Metal Detectors!
Thank you for choosing a Garrett Metal
Detectors’ ACE™series detector. This enhanced
metal detector has all the depth and technology,
including Garrett’s exclusive Target ID technology
you need to make your treasure hunting adventures
exciting and very rewarding. All of our products
are backed by 40 years of extensive research and
development that ensures your ACE detector is the
most advanced of its kind in the industry.
The ACE series of detectors includes Garrett’s
patented discrimination feature. This technology,
found only on Garrett detectors, features two
indicator scales that allow the user to see the
detector’s discrimination setting (Lower Scale) as
well as the analysis of each detected target (Upper
Scale). They also include the highly acclaimed

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Garrett Metal Detectors
6.5x9” PROformance searchcoil. This highly
rugged, epoxy-filled searchcoil covers more
ground per scan and offers greater depth to find
those deeply buried treasures. In order to take full
advantage of the special features and functions
of the Ace 150 and 250 metal detectors, carefully
read this instruction manual in its entirety.

Ace 150 • Ace 250
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TABLE OF CONTENTS
ACE Parts ............................................................5
ACE Assembly.....................................................6
ACE Features and Controls .............................10
ACE 150 ........................................................10
ACE 250 ........................................................18
Hunting With Your ACE Detector...................26
Digging a Target ................................................28
Troubleshooting Guide .....................................29
Code of Ethics....................................................30
Caution...............................................................32
Bench Tests ........................................................34
Caring For Your ACE Detector .......................36
ACE Warranty / Service...................................38
ACE Accessories................................................41
RAM Books Order Form .................................45

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Garrett Metal Detectors
Control
Housing
S-shaped
Ramrod Stem
Upper
Stem
Lower
Stem
Search
coil
Threaded
Bolt
Handle
Grip
Padded
Arm Cuff
LCD
Screen
Detector
Stand
Pushbutton
Controls
Washer
Knob
ACE Illustration
Spring
Clip

Ace 150 • Ace 250
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ACE Parts
No tools are required to assemble the ACE 250
or 150 enhanced metal detectors. Four (4) AA
batteries are included with the detector.
Before assembling your ACE metal detector
ensure you have the complete set of parts, which
include:
• Control Housing with S-shaped Ramrod Stem
• Upper Stem
• Lower Stem
• One (1) Wing Nut
• Two (2) Mounting Washers
• One (1) Threaded Bolt
• One (1) 6.5x9” Searchcoil with Cable
If any part is missing, please contact your local
dealer.

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Garrett Metal Detectors
ACE Assembly
1. Align the holes in the mounting washers
with the small posts on the stem and press
firmly into the lower stem.
2. Slide the searchcoil onto the stem.

Ace 150 • Ace 250
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3. Insert the threaded bolt through the holes
of the lower stem and searchcoil.
Hand-tighten the searchcoil assembly
with the remaining wing nut.
4. Depress the spring clip and insert the
control housing into the upper stem.

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Garrett Metal Detectors
5. Depress the spring clip in the lower
stem to adjust to the most comfortable
operating length.
6. Wrap the searchcoil snugly about the
stem with the first turn of the cable over
the stem.

Ace 150 • Ace 250
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7. Insert the cable connector into the con-
nector of control housing and hand-tighten.
8. The location of the arm cuff may be
adjusted by removing the screw on the
bottom and moving it to the other hole.

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Garrett Metal Detectors
ACE 150 Features
The ACE 150 is designed with Garrett’s
exclusive Graphic Target ID technology, which
indicates the probable identification of a target
along a horizontal scale that reads from low
conductive metals (e.g. iron) on the left to high
conductive metals (e.g. U.S. coins) on the right.

Ace 150 • Ace 250
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1. Mode—Indicates which of the three detection
modes is selected by highlighting the corresponding
word on the LCD screen.
2. Target ID Legend—A printed Target ID
Legend is located directly above the LCD screen
and indicates commonly found targets and metals.
When a target is detected, the Target ID cursor will
appear below the word that most likely indicates
the type of target found, based on its conductivity.
3. Upper Scale—The Upper Scale, where the
Target ID cursor is illuminated when a target is
detected, consists of five (5) graphical segments.
4. Target ID Cursor—The Target ID cursor is
illuminated in the Upper Scale and indicates the
probable identity of a detected target.
5. Lower Scale—The lower horizontal scale,
or Notch Discrimination Scale, indicates the
discrimination pattern where the ACE will or

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Garrett Metal Detectors
will not produce an audible signal when a target
is located. This scale changes when switching
between Detection Modes.
No audible signal will be produced when a target
is located where a notch is absent (those Lower
Scale regions where no cursors are visible).
6. Coin Depth—The depth of a coin, or similar
sized target, will be shown on the LCD screen.
Depth is indicated when the LCD scale is
illuminated at 2”, 4” or 6+ inches. Sweep over the
target with the searchcoil 1” from the soil to get the
most accurate reading. Note: Targets larger than
a coin may display shallower than actual depth
while targets smaller than a coin may display
deeper than actual depth.
7. Low Battery Indicator—When the unit’s
batteries become weak, the Low Battery Indicator
will remain on. For best performance, replace the
old batteries with quality alkaline AA batteries.
NiMH rechargeable batteries may be used, but will

Ace 150 • Ace 250
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have a shorter life per charge. You can expect 20 to
40 hours of operation depending on battery type.
Access and replace the batteries on the ACE
150 and 250 by gently sliding the cover off the
control housing. Remove batteries from the ACE
when the unit will be stored for longer than 30
days.
8. Headphone Jack—Any 1/4” plug headphones
can be inserted into the jack found on the reverse
side of the Control Housing.

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Garrett Metal Detectors
9. Tone ID—The Tone ID feature produces distinct
audible tones based on a target’s conductivity:
• High conductivity targets (such as U.S. coins)
produce a unique belltone signal.
• Medium conductivity targets (such as
jewelry, nickels and international coins),
produce a standard-pitched audio signal.
• Low conductivity targets (such as iron and
nails) produce a low-pitch audio signal.

Ace 150 • Ace 250
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ACE 150 Controls
1. POWER Pushbutton (press and hold to reset
to factory recommended settings)—Press and
release to switch the unit ON and resume hunting
with the same settings and modifications used
prior to turning the unit OFF. When the POWER
pushbutton is pressed and held for 5 to 10 seconds
(until the detector beeps), the ACE 150 will return
to the factory recommended settings of each
MODE.
2. SENSITIVITY Pushbutton—Push the
SENSITIVITY button to step through the four (4)

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Garrett Metal Detectors
sensitivity levels, which are continuously shown
on the LCD screen.
Use higher sensitivity levels when searching
for very small or very deep targets. Use lower
sensitivity levels in locations where the detector is
behaving erratically due to excessive metallic trash
interference, high mineral soils, saltwater beaches,
or other metal detectors are present.
3. MODE Pushbutton—Push the MODE button
to select one of three desired detection Modes:
• All-Metal Mode—This MODE is designed to
detect every type of metal and should be used
when you want to find all metal items or when
the materials of the desired object is unknown.
Switch to the All-Metal Mode to aid in locating
a target when its signal is inconsistent.
(Inconsistent signals can mean a trash target is
close to a good target).

Ace 150 • Ace 250
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• Jewelry Mode—This mode is designed to find
jewelry such as rings, bracelets, watches and
necklaces and ignore most trash items such as
bottle caps and nails.
• Coins Mode—This mode is designed to
find all types of coins and eliminate trash items
such as iron, bottle caps, most pulltabs and other
objects normally encountered while coin
hunting. Some bent pulltabs and pieces of
tabs may not be eliminated from detection.
Some digging of junk targets is to be expected,
such as soft drink cans.

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Garrett Metal Detectors
ACE 250 Key Features
1. POWER Pushbutton (press and hold to reset
to factory recommended settings)—Press and
release to switch the unit ON and resume hunting
with the same settings and modifications used
prior to turning the unit OFF. When the POWER
pushbutton is pressed and held for 5 to 10 seconds
(until the detector beeps), the ACE 250 will return
to the factory recommended settings of each
MODE.