User manual

8
Garrett Metal Detectors
ACE 200i
™
9
AUDIO FEATURES
Tone ID—The ACE 200i produces three distinct tones based
on a target’s metal type and conductivity:
• High conductivity targets (Digital ID > 40) produce a
unique belltone signal.
• Medium to low conductivity targets (Digital ID of 21–40),
produce a medium-pitched signal.
• Ferrous targets (Digital ID < 21) 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 three preset discrimination patterns by
using the MODE button to scroll through the three modes:
• ZERO-DISC Mode–Detects every type of metal. All 5
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.
• COINS Mode—designed to find most types of coins and
to eliminate common trash items such as iron and foil. Some
desirable items that respond the same as foil may be missed
with this discrimination pattern. Some digging of junk targets
is to be expected, such as aluminum cans.