Perform Air Test In All Metal Mode; Perform Batt Test - Tesoro De Leon Operator's Instruction Manual

Perform Air Test in ALL METAL Mode

Once you have set the correct threshold hum, you are ready to per-
form an Air Test in the ALL METAL Mode. Your DeLeón has a VCO
style ALL METAL Mode. You will find that as targets get closer to the
coil, the threshold tone will get louder and higher in pitch.
Try waving your targets in front of the coil. Start from a distance of
10 to 12 inches away from the coil and slowly work your way closer to
the coil. Then try starting from 6 inches away from the left or right of
your coil and work your way to the center of the coil. Notice the changes
of the audio signal. Your strongest signal will always be closest to the
center of the coil. Additional information can also be learned by the sig-
nal strength and pitch. A smaller or deeper target will give a less notice-
able change in the threshold than a larger or more shallow target will
give. Take some time and try all of your targets at different depths to find
out how your detector sounds.

Perform BATT TEST

Push the MODE Switch to the left most position marked BATT
TEST and hold. This will activate the battery test. Release the switch and
notice that it is spring loaded and will snap back into the center position.
Press the switch back into the BATT TEST position and read the display
screen. With fresh batteries, all eight of the display segments will show
up. As the batteries lose power, fewer and fewer segments will show.
When the batteries are close to failing, the display screen will show the
words VERY LOW. It is highly recommended that you change your bat-
teries before the VERY LOW appears on the display screen.
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