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Toltec 100 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 Toltec 100 is a high performance VLF/TR discriminator which features a Target Identifier circuit which features a
Target Identifier circuit which reads the phase angle of the target and displays the probable Target Identity on the front
mounted meter. The Toltec also features a meter reading of Coin Depth when in the All Metal mode of operation.
The Toltec 100 has two basic search modes. 1) Normal Discriminate mode, and 2) Notch Discriminate Mode and 3) All
Metal mode. Both the Discriminate mode is based on ultra slow motion, and requires that just a very slight motion be present
to operate properly. The Normal Discriminate mode is to be used where pulltabs re not too prevalent, and the Notch
Discriminate mode is intended to be used to eliminate the detector's response to unwanted pulltabs when used in areas
where there are numerous pulltabs.
The All Metal mode is not motion based, and further has a switch which can provide for auto tuning of this mode for
nugget hunting or similar uses. A 10 turn Ground Adjust control is used to provide accurate setting.
A separate optional Body Mounting kit is available for rapidly converting the detector to the body mount configuration. The
detector is furnished with an 8 1/2" concentric searchcoil, but any of the Tesoro searchcoils will operate properly, except that
the coin depth reading may be in error if used with other coils.
As with any metal detector, the familiarity of the use with the instrument will have a great deal to do with how successful
the operator is. We recommend that you read and understand this manual fully, and familiarize yourself with the instrument by
testing it, outdoors over various types of targets before attempting to use it in the field.
Be sure to fill out and mail your warranty registration card to validate your warranty.
Assembly of the Toltec 100 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 install the lower stem assembly to the upper stem.
INSTALLING SEARCHCOIL AND LOWER 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. Adjust fore desired height following
assembly.
2. Insert the pole tip and washers between the mounting ears of the searchcoil, after removing the screw and thumb
nut. Align the holes in the pole tip with those in the searchcoil mounting ears.
3. Adjust the coil mounting screw through the coil and pole tip. Be sure the internal tooth lock washer is on the screw
head side. 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 snuggly around the pole. Install the connector in the connector mounted on the control
housing, and tighten by hand.
NOTE that the searchcoil cable should not be allowed to flop loosely above the searchcoil, since the wires in
Good Hunting! Jack Gifford
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Summary of Contents for Tesoro Toltec 100
- Page 1 Product Toltec 100 OPERATOR INSTRUCTION MANUAL Detectors Coils Accessories CONGRATULATIONS! Catalog Your new TESORO Metal Detector was designed to provide you with many happy hours of enjoyment in the most Dealers rewarding hobby I can think of – treasure hunting. Ahead of you lie fascinating and exciting experiences as you step into the Information past – uncovering artifacts lost by past generations. I wish we could share these experiences with you, and we wish you the best of success. Frequently Asked Your TESORO Metal Detector is capable of meeting your needs in any conceivable treasure hunting situation. As with Questions any detector, operating skill and familiarity with this instrument are probably the limiting factors in determining how successful About Tesoro 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. Manuals The TESORO Metal Detector is a precision electronic instrument, which will last for years if properly cared for. Treat it Field Tests right and it won't let you down. Articles Good Hunting! Jack Gifford Testimonials Customer Finds GENERAL DESCRIPTION Forums Service The Toltec 100 is a high performance VLF/TR discriminator which features a Target Identifier circuit which features a Target Identifier circuit which reads the phase angle of the target and displays the probable Target Identity on the front Warranty Repair mounted meter. The Toltec also features a meter reading of Coin Depth when in the All Metal mode of operation. Contact Us The Toltec 100 has two basic search modes. 1) Normal Discriminate mode, and 2) Notch Discriminate Mode and 3) All Metal mode. Both the Discriminate mode is based on ultra slow motion, and requires that just a very slight motion be present ...
- Page 2 2 1/4" speaker Headphone Compatibility 1/4" stereo earphone jack Weight (may vary slightly) 4 lbs 9 volt DC (for ID meter light) Battery Requirement 1 ea. 9V alkaline Battery Life (typical) 15 to 30 hours Optimum Temperature Range 30° to 100° F Optimum Humidity 0 to 75% R.H. ALL METAL Operating Modes DISCRIMINATION NOTCH DISCRIMINATE TESORO Electronics, Inc., reserves the right to modify or improve the design without further notice. CONTROLS The control panel of the Toltec 100 is recessed directly behind the speaker on the top of the detector. This area is the most protected place for the controls when using the detector in either the pole mount of the body mount configurations. 1. GROUND ADJUST. This control is a ten turn device, and is used to adjust the detector so that it doesn't respond to the ground mineralization when the detector is used in the all metal mode. 2. SENSITIVITY. This control is used to set the sensitivity in the Discriminate mode. The preset mark at approx. '7' on the control will usually provide the optimum operating power for the detector. Most situations will allow the use of the detector at even higher settings, and of course you will want to set this control as high as possible, but at the maximum setting the detector may become erratic and noisy. If the detector seems to be giving many false signals, or beeping too much, turning the control back down to the preset or less will make it much more usable. 3. DISC LEVEL. This control is used to adjust the detector's response to unwanted metallic trash. At the lowest setting, the detector will eliminate most iron objects, but will still respond in a positive manner to light foil, bottle caps, pull tabs, coins and most other metallic items. As the knob setting is increased in the clockwise direction, response to more of these metallic targets is reversed, so that they are rejected. Every detector can vary somewhat, so it's a good idea to try some of the common coins and junk items on your detector to see where they are rejected. The preset mark will be ideal when using the detector, since it will still allow you to detect nickels and small gold rings. 4. NORM/ATUO TUNING SWITCH. This control is used to adjust the Notch filter response to the desired target level ...
- Page 3 6. Retune the threshold back to a normal operating level. The Toltec is now ready to use in the All Metal mode. DISCRIMINATE MODE TUNING Tuning the Toltec 100 for use in the Discriminate mode requires that the detector be properly tuned in the ALL METAL mode first, since the ALL METAL signal is used in the circuitry that derives the ID and the Discriminate signals. Also the setting of the threshold signals establishes the minimum sound for deep targets, so turning this setting up will greatly enhance the sound for deep targets, although the detector may become erratic, while adjusting the threshold too low will cause a loss of depth. After the ALL METAL mode procedure is accomplished, the only additional tuning for operation is to set the DISC mode switch to the proper desired mode, and to adjust the DISC and NOTCH levels to their desired settings. Set the SENSITIVITY control at preset point or higher. Remember that the Notch Level setting should always be set higher than the Disc Level. SELECTING THE PROPER MODE OF OPERATION The Toltec 100 offers three basic modes of operation, the All Metal mode, the Normal Disc mode, and the Notch Disc mode. If the Ground Adjust control has been adjusted correctly, all modes are mineral free. The All Metal mode is not based on motion of the searchcoil, and utilizes a Threshold tone. This mode offers the ability to pinpoint without motion, and provides exact ground canceling while also providing a Coin Depth reading. The two Disc modes are both based on very slight motion of the searchcoil, and both of these are completely silent in operation. The 8 1/2" concentric searchcoil furnished as standard is chosen to provide the maximum efficiency when the detector is used for coin hunting. This coil size will yield the best compromise when the detector is used for this purpose. Any of the concentric or wide scan coils made by Tesoro as of this writing will work on the Toltec 100, and can greatly increase the abilities of the detector. When coin shooting, we recommend that you do not use the Notch Disc mode unless the area you are hunting is virtually littered with pulltabs. Using the meter ID to avoid digging tabs is generally the best way, if the area is clean enough. You will probably notice some slight increase in depth if you use only the Norm Disc mode. Note that the area on the meter noted "PULL TABS" is somewhat narrow, and some individual tabs may fall just below or above this range. Also note that broken or bent tabs can fall outside the marked range. Generally, most tabs that fall outside the range on the meter will be below the range, and will be very small or broken tabs. Nugget hunting requires that you use the All Metal mode since the response to small gold targets is so close to iron. Auto tuning is also generally recommended by many nugget hunters, but not necessary. Since nugget hunting is usually done in areas that have many hot rocks, black sand, and other heavy minerals, it may be necessary to change the Ground Adjust as conditions change. Also a Wide Scan coil will be less affected by the minerals. FIELD USE The detector should be held in a position that is comfortable for you. Swing the detector from side to side in about a three foot arc, overlapping succeeding strokes well. This motion is called a “sweep.” The Toltec 100 was designed to get maximum depth without the frantic pace required of earlier motion detectors, so go at a pace that is comfortable for you. An easy pace is preferred. In fact, trying to hunt too fast in Discriminate may even cause a loss of depth in heavily mineralized locations. It would be helpful to bury some coins and trash metal junk items in an area that you know is clear of other metal objects, and then try the unit in its various modes. Check the area in All Metal Mode first to be sure its clear of trash then ...
- Page 4 The detector should be held in a position that is comfortable for you. Swing the detector from side to side in about a three foot arc, overlapping succeeding strokes well. This motion is called a “sweep.” The Toltec 100 was designed to get maximum depth without the frantic pace required of earlier motion detectors, so go at a pace that is comfortable for you. An easy pace is preferred. In fact, trying to hunt too fast in Discriminate may even cause a loss of depth in heavily mineralized locations. It would be helpful to bury some coins and trash metal junk items in an area that you know is clear of other metal objects, and then try the unit in its various modes. Check the area in All Metal Mode first to be sure its clear of trash then bury the targets at least a foot apart, and from 2 to 6 inches deep to start. Make a map of the test bed to be sure you know what each target is and how deep it is. Practice on these targets to familiarize yourself with your detector’s target response. This will also help you learn the proper sweep rate for best operation. In ALL METAL mode operation, keep the detector tuned so that there is a slight threshold buzzing of sound. This is easy to do because ground minerals do not affect the All Metal mode if properly adjusted. Regardless of which mode you are using try to keep the coil height constant and close to the ground. Most people tend to raise the coil at the end of a sweep, much like a pendulum, especially if they are hurrying. Try to avoid this, as any increase in height will cause a corresponding loss of depth. In areas with well kept lawns, the easiest way to maintain a constant searchcoil height is to allow the coil to rest on the grass as you sweep from side to side. In rough and rocky areas it is best not to “scrub” the coil on the ground, as the rocks will act like abrasives, and wear away the coil housing. Should wear through occur, it will usually destroy the searchcoil beyond repair, so it is always best to keep a scuff cover on the coil, they are available from your dealer. Sweep the coil as close to the ground as possible without touching. Hitting the ground or rocks may cause a false signal much like a desired target would. The higher you hold and sweep the coil above the ground the less depth you'll be able to obtain. When operating in the Discriminate Mode, some “false signals” may be caused by heavy concentrations of trash metal objects, by very large trash items, or by electrical interference. These signals will sound different than good target signals because they are generally short, choppy sounds. At the end of your sweep, as you the reverse the coil direction, the detector is most susceptible to trash induced noise. There are two ways to tell whether these sounds are good deep signals or trash “noise.” The first is by repeatability. Trash induced noises will not be regular as you sweep the coil over the suspected target several times, whereas a good target response will be repeatable at the exact spot with each sweep. The second method is to switch to All Metal Mode and check the target response sound. If the response is weak, it may well be a deep, good target; but if the response is very strong, it is probably trash. Note that a coin close to the surface can give a double beep sound, but it is regular and repeatable. Raising the coil an inch or two will restore the single beep on surface targets. If there is any doubt whether a target is good or not, DIG IT. For this same reason, in the Discriminate Mode, it is best not to use a higher DISC LEVEL setting than necessary. Nickels and most smaller rings are rejected when the DISC LEVEL is set to reject pull tabs on any metal detector that is a TR Discriminator like the Toltec 100. If you don ’t dig any junk at all, you are surely passing up a lot of good finds as well. Set the DISC LEVEL only high enough to suit the conditions where you are searching. When using the Target ID features in very trashy areas, it will probably be necessary to reduce the sweep length to just a few inches as you pass directly over the target. Since the Toltec discriminator is based on very slow motion, a long sweep in a trashy area will just read all the combined signals rather than just the desired target. ...
- Page 5 HAPPY HUNTING, and thank you for purchasing a TESORO. WARRANTY SERVICE Your Tesoro metal detector is covered by a Limited Lifetime Warranty, the terms of which are listed below. If your metal detector should require service, you may return it to the Tesoro factory, or tone of the factory authorized service centers. Contact the factory for the name and address of the nearest service center. If you have any questions, don't hesitate to contact the factory. LIMITED LIFETIME WARRANTY This warranty gives you specific legal rights, and you may have other rights which vary from state to state. This instrument is warranted to be free of defects in material and workmanship as long as it is owned by the original consumer purchaser. This warranty is not transferable, and is valid only if the warranty registration card has been completed and mailed within 10 days of purchase. During the first two years, 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, or at one of its authorized repair centers. After two years from date of purchase, TESORO will replace defective parts at no charge except a nominal labor change and transportation charges. 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. If warrant service should be necessary, contact the factor for nearest repair center. Under the copyright laws this documentation may not be copied, photocopied, reproduced, translated or reduced to any electronic or machine readable form, in whole or in part, without the prior written consent of Tesoro Electronics Incorporated, except for the private use of a Toltec 100 owner or operator, or in a manner otherwise described in this documentation. © 19951996 Tesoro Electronics Incorporated. All rights reserved. Printed in the United States. Home ...
- Page 6 Under the copyright laws this documentation may not be copied, photocopied, reproduced, translated or reduced to any electronic or machine readable form, in whole or in part, without the prior written consent of Tesoro Electronics Incorporated, except for the private use of a Toltec 100 owner or operator, or in a manner otherwise described in this documentation. © 19951996 Tesoro Electronics Incorporated. All rights reserved. Printed in the United States. Home Tesoro Electronics, Inc. 715 White Spar Road Prescott, AZ, USA 86303 19287712646 ...
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