10 Garrett Metal Detectors
ACE 200
™
11
BENCH TESTS
You should conduct bench tests to become more familiar
with your detector’s operation. To conduct a bench test:
1. Place the searchcoil on a flat, non-metallic surface that is
several feet from other metallic objects.
2. Select the ZERO-DISC mode.
3. Pass various metal objects (coins, bottle caps, nails, etc.)
across the searchcoil at a distance of 3 to 4 inches. Your
metal detector will audibly and visually identify the target.
4. Perform this test in all the modes available on your
detector. Observe the sounds
as well as the graphics on
the LCD that are made in
each mode.
5. Record the results of your
bench tests and refer to them
when hunting in the field.
Once you have determined how your test targets register
on the Target ID during bench tests, test them in the soil. Bury
your targets at recorded depths to create a "test plot." Note
how various targets read based upon whether they are lying
in the ground flat or at various angles.
Keep accurate records 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 soaking rain. Take note
of any changes in how these targets are detected.
SENSITIVITY
SENSITIVITY
Button
Sensitivity
Indicator
Use the SENSITIVITY button to step through the four (4)
levels. Use increased sensitivity when searching for very
small or very deep targets. Use lower sensitivity levels when
the detector is behaving erratically (due to excessive metallic
trash, highly mineralized soils, electrical interference or the
presence of other metal detectors) and the erratic operation
cannot be resolved with discrimination.