Tesoro TEJON Operator's Instruction Manual
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Tesoro TEJON Operator's Instruction Manual

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TEJÓN OPERATOR INSTRUCTION MANUAL
CONGRATULATIONS!
Your new Tesoro Tejón metal detector is part of a new series of detectors 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, or as you take pleasure in the great outdoors with
family and friends searching for precious metals. I wish we could share these experiences with
you, and all of us at Tesoro wish you the best of success.
Your Tesoro detector is capable of meeting your needs in a wide range of treasure hunting
situations. As with any other metal detector, familiarity with this instrument is probably the
limiting factor in determining how successful you can be. I recommend that you read this manual
and fully understand how to operate this detector before attempting to use it in the field. As you
become more familiar with your detector through practice, your rate of success will increase
dramatically.
The Tejón is a precision electronic instrument that will last for years if properly cared for. Treat
it right and it won't let you down.
Good Hunting! Jack Gifford
GETTING STARTED - UNPACKING THE BOX
Your Tejón was shipped with these parts:
1 Upper Pole Assembly
Fully assembled, including upper pole stem with handle grip, padded arm bracket and control
housing.

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  • Page 1 TEJÓN OPERATOR INSTRUCTION MANUAL CONGRATULATIONS! Your new Tesoro Tejón metal detector is part of a new series of detectors 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—...

  • Page 2: Installing The Battery

    1 Operator Instruction Manual 1 Warranty Card If any of these items are missing, contact the Tesoro Authorized Dealer where you purchased your detector immediately. Assembling the Tejón is simple and requires no special tools. Just install the battery packs, mount the searchcoil on the lower pole assembly, connect the pole assemblies together, wrap the excess cable around the pole, and plug the cable into the control housing.

  • Page 3: Assembling Your Detector

    Remove the batteries by pressing down on the right side of the 4-pack battery holder so that the left side of the holder will pop up. Pull out the holder and replace the batteries as needed. When returning the holder, note the position of the spring clips inside the armrest housing and make sure that the battery pack contacts fit snugly against the springs.
  • Page 4 3. Insert the mounting screw through the holes in the mounting ears and pole tip—entering from the side opposite the cable connection. 4. Install the thumb nut on the mounting screw and tighten by hand. Note: Do not overtighten the thumb nut. It should be snug but not too difficult to loosen up.

  • Page 5: Adjusting The Pole & Searchcoil

    ADJUSTING THE POLE & SEARCHCOIL The pole length should be adjusted so that the detector does not become uncomfortable or tiring after long periods of use. The detector grip should rest in your hand with your arm relaxed, your elbow straight but not locked, with the pole extending out in front of you at the approximate angle shown in the photo.
  • Page 6 2. AAn iron target (a small nail or screw will do), a nickel, a zinc penny (1982 or later), a quarter, and a couple of different pulltabs 3. A nonmetal table top or counter. Here’s what you will do: 1. Prepare for the Quickstart 2.
  • Page 7 Adjust THRESHOLD To adjust the threshold tone, turn the THRESHOLD knob clockwise until you hear a slight but steady tone. You may have to turn the knob to somewhere between the 1 o’clock and 3 o’clock position to get the best hum. Please remember that the threshold only affects the all metal mode. The purpose of the threshold tone is to give a reference to judge targets for pinpointing and to adjust the ground balance.
  • Page 8 Take some time and try all of your targets at different depths to find out how your detector sounds. Adjust Ground Balance for Air Test The ground balance function for your Tejón is a form of discrimination that allows you to tune out the mineralization in the ground that may mask targets or decrease the detector’s depth and sensitivity.
  • Page 9 To adjust the tone for the discriminate mode, turn the DISC LEVEL knob clockwise just past the click. You are now in the discriminate mode. The first thing that you will notice is that the threshold has gone away. The Tejón works in a silent search discriminate mode. You will only hear a signal when there is a target beneath the coil.
  • Page 10 As discussed before, the discriminate mode is used to filter unwanted targets from good targets. The principle behind this is pretty simple. The detector sends out a signal and then receives it back creating a small electronic field. As metal passes through the field that the detector generates, it causes a change in the received signal.
  • Page 11 Pushing the TRIGGER SWITCH forward away from the handle will place your Tejón into the alternate discriminate mode. The upper discriminate knob marked ALT DISC LEVEL controls this mode. Flip the TRIGGER SWITCH back and forth and let it return to the center position. Perform Air Test in ALT DISC LEVEL Mode Leave the TRIGGER SWITCH in the center position and check all of your targets.

  • Page 12: Operating Techniques

    Congratulations, you have just finished the Quickstart for your new Tejón detector and in the process have learned quite a lot about your detector. But experience is the best teacher. I recommend that you get out and practice with your detector as much as possible. Any time spent using your detector will give you valuable experience.
  • Page 13 Here is an example of balancing: After setting up the detector, you raise the coil and then push it to the ground. As the coil drops, the threshold hum gets louder. You then turn the GROUND ADJUST knob counterclockwise toward the minus sign. You pick up the coil and push down again.

  • Page 14: Care And Use

    side and then from front to back until you can identify the center of the X—the spot on the ground where the target response sound is the greatest. Pinpointing a target in the discriminate mode is probably best done by “X-ing” as well. Remember that the detector will beep just as the target passes under the center of the searchcoil.
  • Page 15 The Tejón is a sturdy instrument, but it is not designed to withstand abuse. In caring for your Tejón, there are several important “DO NOTs” to remember. DO NOT use it to pry rocks loose or to beat bushes out of the way. DO NOT drop the machine into water. DO NOT use it unprotected in the rain.

  • Page 16: Optional Accessories

    Scuff Covers We highly recommend using a scuff cover to protect your searchcoil at all times. The scuff cover for the Tejón, fitted with the 9 x 8 monolithic searchcoil, is Tesoro part # SCUF-9x8. Searchcoils The 9 x 8 monolithic searchcoil provided with the Tejón is designed for the best all-around performance.

  • Page 17: Specifications

    No one searchcoil is better than all the rest. Several optional interchangeable searchcoils are available for the Tejón. They are all easy to mount and require no special tools. See the next page for a list of these searchcoils with the Tesoro part # and description.

  • Page 18: Warranty & Service

    WARRANTY SERVICE Your Tesoro metal detector is covered by a Lifetime Warranty, the terms of which are listed below. If your metal detector should require service, you may return it to the Tesoro factory at the address below. LIMITED LIFETIME WARRANTY This warranty gives you specific legal rights, and you may have other rights which vary from state to state.
  • Page 19 TESORO will, at its option, repair or replace any instrument covered by this warranty, without charge, except for transportation charges, at its factory in Prescott, Arizona. This warranty excludes batteries, damage caused by leaky batteries, cable breakage due to flexing on body mount units, and wear of the searchcoil housing. Also excluded are instruments which have been abused, altered, or repaired by an unauthorized party.

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