44 Garrett Metal Detectors
BENCH TESTS
you should conduct bench tests to become more familiar
with the
AT Pro
’s operation in both Standard and PRO modes.
In addition, the use of the Iron Audio feature should be tested
in both Standard and PRO modes. Suggested test items
should include:
• Coins
• Iron nail
• Bottle cap or steel washer
To conduct a bench test, place the searchcoil on a flat,
non-metallic surface that is several feet from other metallic
objects. Begin by testing in the STD Mode with the ZERO
discrimination pattern. Pass the coins individually across the
searchcoil at a distance of 8 to 10 cm. Listen to the audio
tone that the detector produces for each coin while also
observing the Target ID for each. Next, select the PRO Mode
For bench testing, place the searchcoil on a flat, stable, non-metallic
surface that is several feet from other metallic objects.
