Garrett ACE series detector User manual

Thank You For Choosing
Garrett Metal Detectors!
Thank you for choosing Garrett Metal Detectors’ ACE™
seriesdetector. Thisenhancedmetaldetectorhasallthe
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 include 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 6.5x9” PROformance searchcoil. This highly
rugged, epoxy-filled searchcoil covers more ground per
scan and offers greater depth to find those deeply buried
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Garrett Metal Detectors Ace 150 • Ace 250

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.
We also recommend you take time to read Garrett’s
Treasure Tips and Hunting Hints booklet for expert
advice on successfully hunting, pinpointing and digging
your targets.
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Garrett Metal Detectors
5
Ace 150 • Ace 250
Table of Contents
ACE Parts 7
ACE Assembly 8
ACE Controls & Features
ACE 150 12
ACE 250 19
Troubleshooting Guide 26
Warranty & Service 27
Warning 30
Accessories 32

ACE Parts
No tools are required to assemble the ACE 250 or 150
enhanced metal detectors. 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
•Two (2) Knobs
•Two (2) Washers
•One (1) Threaded Bolt
•Searchcoil with Cable
If any part is missing, please contact your local dealer.
Garrett Metal Detectors Ace 150 • Ace 250
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
6
Spring
Clip
7

3. Install the Upper Stem to the Lower Stem
and then this assembly to the ACE Control
Housing by depressing the two buttons and
coupling the Stem to the Housing unit.
Adjust for the most comfortable operating
length.
4. Wrap the Searchcoil cable snugly about the
stem with the first turn of the cable over the
stem.
ACE Assembly
1. Attach the Lower Stem to the Searchcoil by
first removing the paper liner from the two
mounting washers and inserting them into the
Stem (adhere to stem) then slip the
Searchcoil onto the Stem.
2. Insert the Threaded Bolt through the holes of
the searchcoil and hand-tighten the two Knobs.
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Garrett Metal Detectors Ace 150 • Ace 250
9

7. The location of the arm cuff may be adjusted
by removing the screw in the bottom of the arm
rest and rotating the cuff 180°.
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5. Insertthecable connector intotheconnector on
the housing and hand-tighten securely.
6. All ACE detectors come with batteries installed.
Slide cover back to replace batteries.
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Garrett Metal Detectors Ace 150 • Ace 250

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
nearby a good target).
•Jewelry Mode - This mode is designed to
find jewelry such as rings, bracelets, watches
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ACE 150 Controls
1. POWER Pushbutton - Press the POWER button once
to turn the detector ON or OFF. Note: After turning
detector off, wait 3 to 5 seconds before turning back ON.
2. SENSITIVITY Pushbutton - Push the SENSITIVITY
button to step through the four (4) sensitivity levels,
which are continuously shown on the LCD screen.
Use higher sensitivity levels when searching for very
small or very deep targets.
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Garrett Metal Detectors Ace 150 • Ace 250

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
scalethat reads fromlow conductive metals(e.g. iron) on
the left to high conductive metals (e.g. U.S. coins) on the
right.
1. Mode - Indicates which detection mode is
selected by highlighting the corresponding
word on the LCD screen.
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and necklaces and ignore most trash items
such as bottlecaps and nails.
•Coins Mode - This modeis designed to find
all types of coins and eliminate trash items
such as iron, bottlecaps, 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.
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Garrett Metal Detectors Ace 150 • Ace 250

No audible signal will be produced when a target is
located where a notch is present (those regions of the
Lower Scale 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
acutal 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 turn on. For
best performance, replace the old batteries with quality
alkaline AA batteries. NiMH rechargeable batteries may
be used, but will have a shorter life per charge. You can
expect 20 to 40 hours of operation depending on battery
type.
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2. Target ID Legend - A Target ID Legend is located
directly above the LCD screen and indicates commonly
foundtargetsandmetals. Whena 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 -TheTargetID 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 will not produce an audible signal
when a target is located. This scale changes when
switching between Detection Modes.
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Garrett Metal Detectors Ace 150 • Ace 250

ACE 250 Controls
The ACE 250 includes these additional control functions
not found on the ACE 150:
1. DISCRIM Pushbutton - Use the (+) or (-) DISCRIM
pushbuttons to move the Target ID cursor to the left or
right. Next, use the ELIM Pushbutton to modify the
discrimination pattern on the Lower Scale.
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Access and replace the batteries 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
(See Page 10).
8. Headphone Jack - ACE sport phones with 1/4” plug
can be inserted into the jack found on the reverse side of
the Control Housing.
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.
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Garrett Metal Detectors Ace 150 • Ace 250

structure.
When pinpointing, the Upper Scale on the LCD Screen
indicates signal strength. When the greatest number of
LCD segments (increasing left to right on the scale) is
shown, the center of the searchcoil is directly over the
target with the depth of a coin-sized target shown on the
depth scale.
4. MODE options:
• CUSTOM Mode - This Mode can be
programmed solely by the operator. The
ACE 250 is factory preset with the CUSTOM
Mode set the same as the COINS Mode. By
using the DISCRIM and ELIM push buttons, an
operator can modify the Notch Discrimination
settings to individual specifications, which will
be retained in the CUSTOM Mode when the
ACE is turned OFF.
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2. ELIM Pushbutton - Press the ELIM (Eliminate)
pushbutton to eliminate or activate the LCD cursor
located on the Lower Scale, directly below the Target ID
cursor.
The ELIM function can be used to modify each Mode’s
discrimination pattern. For example, when an unwanted
target is located while hunting press the ELIM button to
create a Notch (delete the cursor) to eliminate that
specific target.
All Notch Discrimination modifications made while in the
CUSTOM mode will be retained when the detector is
turned OFF. However, all changes made to the Notch
Discriminationscalewhile in theALL-METAL,JEWELRY,
RELICS and COINS modes will return to the factory
settings when the detector is turned OFF.
3. PINPOINT Push Button - Press and hold the
Pinpoint pushbutton to determine the exact location of a
target that is still hidden in the ground, wall or other
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Garrett Metal Detectors Ace 150 • Ace 250