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18 Garrett Metal Detectors

ACE 300

i

™  19

by 12cm

1m/sec

1m/sec

1m/sec

Overlap Swing

by 12cm

Overlap Swing

In order to fully search an area, overlap the swings of your searchcoil by 

half the length of the coil (about 12cm)� Sweep the searchcoil in a straight 

line or with a slight arc at a sweep speed of about 1m/sec�

SYMPTOM

SOLUTION

No power

1. Ensure batteries are installed in the correct orientation.

2. Replace all old batteries with all new batteries.

Erratic sounds or 

target ID cursor 

movement

1.  Ensure your searchcoil is securely connected and the coil 

  cable is snugly wound around the stem.

2.  If using the detector indoors, be aware that excessive

  amounts of electrical interference exists, plus excessive 

  amounts of metal can be found in floors and walls.

3.  Determine if you are close to other metal detectors or other 

  metal structures such as electrical power lines, wire fences, 

  benches, etc.

4. Adjust frequency.

5. Reduce your sensitivity setting.

Intermittent Signals

Intermittent signals typically mean you’ve found a deeply 

buried target or one that is positioned at a difficult angle for 

your detector to read. Scan from different directions to help 

define the signal. In the case of multiple targets switch to the 

ZERO-DISC Mode or press the pinpoint button to precisely 

locate all targets. In trashy areas, use the 

Super Sniper

™ 

or a 5" x 8" DD searchcoil. (NOTE: Iron targets may cause 

Intermittent Signals. You can identify iron targets in ZERO-

DISC Mode.) 

I’m not finding 

specific targets

Ensure you are using the correct mode for the type hunting 

you are doing. If specifically hunting for coins, COINS mode 

should be your best choice to eliminate other undesirable 

targets. You may also use the ZERO-DISC mode, which 

detects all metal targets to ensure desired targets are present.

Target ID Cursor 

bounces

If your Target ID Cursor bounces erratically, chances are 

you’ve found a trash target. However, a Target ID Cursor may 

bounce if a good target (such as a coin) is not parallel to the 

searchcoil (e.g. on edge). It may also bounce if there is one 

or multiple “junk” targets laying next to the good target. Scan 

from different directions until your Target ID Cursor becomes 

more stable. 

NOTE: Large, flat pieces of iron—depending on their 

orientation in the ground—can read as a good target or can 

cause erratic Target ID Cursor movement. 

TROUBLESHOOTING GUIDE

Summary of Contents for ACE 300i

Page 1: ...tt Electronics Inc PN 1534210 A 0216 1881 W State Street Garland Texas 75042 USA Tel 1 972 494 6151 Email sales garrett com Fax 1 972 494 1881 ACE 300i Owner s Manual Owner s Manual English Spanish Fr...

Page 2: ...mation 7 Audio Features 8 Selecting Modes Discrimination Patterns 9 Sensitivity 10 Notch Discrimination 11 Iron Masking 13 Pinpointing 14 Bench Tests 16 Hunting Tips With Your ACE 300i 17 Troubleshoot...

Page 3: ...The coil must be in motion for target detection but can remain stationary during Pinpoint ACE 300i CONTROL PANEL Sensitivity Setting DISCRIM and Accept Reject Buttons Use DISCRIM or to select a curso...

Page 4: ...up Headphones Warranty card Manual Loosen lower camlock and extend lower stem Insert mounting washers connect searchcoil to stem as shown and hand tighten wing nut Loosen upper camlock insert S stem w...

Page 5: ...to indicate a target s probable identity with Ferrous iron targets at the left non ferrous targets that are thin or have low conductivity in the middle and thick or high conductivity targets e g thick...

Page 6: ...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...

Page 7: ...h objects from detection such as foil or pull tabs The ACE 300i has 12 pixels or notches of discrimination shown on the lower scale Any combination of these pixels can be switched on or off based upon...

Page 8: ...stration 2 Modify pattern with these buttons Use the NOTCH DISC buttons to position the Target ID Cursor above the pixel you wish to eliminate see above illustration Use the ELIM button to delete this...

Page 9: ...and front to back in a crosshair pattern to locate the peak signal indicated by the loudest audio and the greatest number of segments on the Upper Scale The center of the searchcoil is directly over t...

Page 10: ...cords or surface markers to indicate your test plot targets and their depths Try testing these targets again in several months after the ground has settled during periods of extreme drought or after a...

Page 11: ...fficult angle for your detector to read Scan from different directions to help define the signal In the case of multiple targets switch to the ZERO DISC Mode or press the pinpoint button to precisely...

Page 12: ...ng sport of metal detecting We encourage you to do the same I will respect private and public property all historical and archaeological sites and will do no metal detecting on these lands without pro...

Page 13: ...and blowing surf When storing for longer than one month remove the batteries from the detector When changing batteries use quality alkaline or rechargeable batteries and replace with all new batteries...

Page 14: ...uding optional ACE searchcoils Garrett Pro Pointer pinpointing detectors and a wide selection of books on treasure hunting are available from your dealer or by calling Garrett s factory at 1 800 527 4...

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