Be sure to listen carefully to the tone of each target
during your bench tests. With experience, you will
begin to recognize the different tones the CSI 250
makes when hunting as well as the type of targets
they identify.
NOTE: Virtually every U.S. coin will be identified
with the belltone feature.
10. Numeric Reference Scale - The numbers
1 - 12 are shown on the Lower Scale of the LCD
and serve as a visual reference guide for detected
targets based on the target’s conductivity. You can
use this guide as an additional way to determine
where similar targets appear on the LCD.
15
CSI 250
mask external noise, such as traffic, and may enable
you to better identify a target based on its audible
signal.
8. Tone ID - The CSI 250 makes three (Low,
Standard, Bell) audible tones when a target is
detected. These tones, which are determined by the
metal’s conductivity, provide additional information
about your target.
For example, a steel-core projectile may be indicated
with a Low Tone; a .22-casing may produce a
standard tone and 9mm copper projectile may be
identified with a belltone.
14
Garrett Metal Detectors
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