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Inca OPERATOR INSTRUCTION MANUAL
CONGRATULATIONS!
Your new TESORO Metal Detector was designed to provide you with many happy hours of enjoyment in the most
rewarding hobby I can think of – treasure hunting. Ahead of you lie fascinating and exciting experiences as you step into the
past – uncovering artifacts lost by past generations. I wish we could share these experiences with you, and we wish you the
best of success.
Your TESORO Metal Detector is capable of meeting your needs in any conceivable treasure hunting situation. As with
any detector, operating skill and familiarity with this instrument are probably the limiting factors in determining how successful
you will be. We recommend that you read this manual and understand fully before attempting to use the instrument in the
field. As you become more familiar with your detector through practice, your rate of success will increase dramatically.
The TESORO Metal Detector is a precision electronic instrument, which will last for years if properly cared for. Treat it
right and it won't let you down.
GENERAL DESCRIPTION
The Aztec is a Transmitter receiver (TR) Metal Detector, operating in the very low frequency (VLF) portion of the RF
spectrum. The detector utilizes the natural phenomena of the phase delay of all targets to provide mineral free or ground
compensated response in the normal mode of operation, or to provide discriminate capability in the discriminate mode.
The Aztec is an extremely sensitive metal detector, but because of its unique pushbutton MODE CHANGE/TUNING
SWITCH is the easiest "one handed" VLF/TR Discriminator to use.
As with any detector, the familiarity of the user with the instrument will have a great deal to do with how successful the
treasure hunter is. We recommend that you read and understand this manual fully before attempting to use the instrument in
the field.
Be sure to fill out and mail your warranty registration card to validate your warranty.
ASSEMBLY
Assembly of the Inca is very simple, and requires no special tools. The only assembly required is to mount the searchcoil
to the end of the lower stem and to install the lower stem and lock nut assembly to the upper stem.
1. Depress the two buttons on the upper end of the lower stem, and slide it into the upper stem. Push the lower stem
up so that the buttons click into the third set of holes from the end of the upper stem.
2. Insert the pole tip between the mounting ears of the searchcoil, after removing the screw and thumb nut. Align the
holes in the pole tip and those in the mounting ears.
3. Insert the coil mounting screw through the coil and pole tip. The screw head should be on the side of the searchcoil
where the cable comes out.
4. Install the thumb nut on the screw and tighten by hand.
5. Wind the searchcoil cable around the pole by depressing the spring buttons and turning the lower stem around
several times as necessary.
ADJUSTMENT
The searchcoil angle and stem length should be adjusted so that the unit is not uncomfortable or tiring after long periods
of use. The stem length is adjusted by depressing the spring buttons and extending or shortening the pole till they click into
the holes that give you the most comfortable setting. The coil should be about one inch above the ground while standing erect.
Adjust the angle of the searchcoil, so that the coil is parallel to the ground. Tighten the searchcoil thumb nut by hand to
maintain this setting.
The arm rest on the rear of the handle can be moved forward by removing the screws and nuts, and reinstalling the
assembly into the most forward set of holes.
Good Hunting! Jack Gifford