8 Garrett Metal Detectors
ACE 300
i
™ 9
AUDIO FEATURES
Tone ID
—The
ACE 300
i
produces three distinct tones based
on a target’s metal type and conductivity:
• High conductivity targets (Digital ID > 60) produce a
unique belltone signal�
• Medium to low conductivity targets (Digital ID of 40–60),
produce a medium-pitched signal�
• Ferrous targets (Digital ID < 40) produce a low-pitch
signal�
Headphone Jack
—Use any headphones with a 1/4” plug�
Example: this is the preset notch discrimination pattern for COINS Mode�
Target ID can vary widely based upon the target's size
and thickness because small, thin pieces of metal cannot
conduct electrical current as well as thicker pieces of metal�
In addition, mineralized soils can cause Target ID errors,
especially for small targets�
Tip:
Target ID is most reliable when the target is centered
under the searchcoil and the coil is swept flat and at a
constant height above the ground�
DIGITAL TARGET ID
SELECTING MODES (Discrimination Patterns)
Choose from one of four preset discrimination patterns or
use CUSTOM Mode to save a personal pattern�
Use the MODE buttons to scroll through the five modes:
•
ZERO-DISC Mode
–Detects every type of metal� All 12
discrimination pixels are switched on; no metals targets
have been notched out (eliminated)� Use this mode to find
all metal items or when the material of the desired object
is unknown� Switch to the Zero-Disc Mode to aid in locating
a target when its signal is inconsistent� Such signals could
mean a trash target is close to a good target�
• JEWELRY Mode
–designed to find jewelry such as rings,
bracelets, watches, and necklaces, while ignoring most iron
trash�
• CUSTOM Mode
–Can be programmed by the operator
and the
ACE 300
i
will retain the changes when the detector
is switched off� The factory preset for the CUSTOM Mode is
the same as the COINS Mode� Begin with this discrimination
pattern and then use the DISCRIM and Accept/Reject buttons
controls to customize the mode�
(For more information, see
pages 11–12.)
