TM 808 Instruction Manual (English Edition) NOTE: To locate large metal in normal conditions, set the controls as shown above. Walk briskly, noting areas that produce an increase in sound - beep. Cross these areas from at least two sides ( X ) to pinpoint target location. When AUTOMATIC THRESHOLD is in AUTO, detector must always be moving to respond to targets. NO-AUTO doesn't require motion to respond to targets.
A Message from... Kenneth R. White Congratulations, and thank you for choosing the TM 808. As an avid detectorist, I commend you for making an excellent choice in deep seeking equipment. White's continually strives to achieve performance and reliability above and beyond your expectations. Your new TM 808 has been hand built and carefully tested. Properly cared for, it will last years.
Table of Contents Assembly................................................................................................... 4 Batteries.................................................................................................5-6 Description of Controls Threshold................................................................................... 7 Signal Balance........................................................................... 8 Ground Balance.................................................
Assembly Instructions 1) Remove all parts from the shipping carton, taking note of how the instrument fits into the inserts. Save this carton (and inserts) for future storage or travel. See back cover for further Carton / Carry case instructions.
Batteries The standard battery holder supplied with your instrument holds four "C" size batteries. Alkalines are recommended as they supply more consistent power for longer time periods. Rechargeable "C" size batteries may also be used in this holder, although they will need to be removed from the holder for recharging.
Batteries continued ... 7) Insert the battery holder into the detector so that the decal on the battery holder is facing toward the control panel of the detector. 8) Close the battery compartment door by first pressing on the door itself to close and hold it into position, then press the battery compartment knob in, until it snaps locked. Rechargeable Batteries Although this instrument doesn't normally come with a rechargeable battery system, high quality systems are available for this model.
Description of Controls THRESHOLD ZUMBIDO The THRESHOLD control turns the TM 808 On and OFF and adjust the volume of the background hum, or as it is commonly called, the "threshold". Turning the THRESHOLD control clockwise the power is turned ON and the batteries automatically check on the METER for a few moments. For the TM 808 to operate properly, battery test must indicate in the upper yellow highlighted area of the METER.
Description of Controls continued..... SIGNAL BALANCE BALANCIA DE SENAL The SIGNAL BALANCE control adjusts the receive signal of the detector. The NORMAL position works well for most searching situations. This setting will provide more than adequate performance with little interference from electrical sources. If interference from extreme ground minerals, or electrical sources (radio, power lines, etc.
Description of Controls continued..... GROUND BALANCE ELIMINADOR DE TIERRA For the best results, the GROUND BALANCE control needs to be adjusted each time the detector is used. The NORMAL setting works well for most conditions. GROUND BALANCE is adjusted to cancel out or ignore common mineralization in the ground thus, allowing the deepest available penetration.
Description of Controls continued..... AUTOMATIC THRESHOLD ZUMBIDO DE AUTOAJUSTO AUTO NO AUTO The AUTOMATIC THRESHOLD control is used to activate (AUTO), or disable (NO-AUTO), the automated threshold resetting feature. This feature offers automatic threshold maintenance. When AUTO is used it allows the threshold hum of the detector to remain smooth or constant regardless of small changes in the ground mineralization, or upward / downward drift of the electronic signal.
Description of Controls continued..... PUSH BUTTON The PUSH BUTTON is located on the tip of the carrying handle. It is used in the NO-AUTO position to reset the threshold hum when it drifts up or down. It does the job manually, that the AUTO position does automatically. Also used during pinpointing, when the PUSH BUTTON is pressed and released with the detector over a target, the signal will be reduced in intensity and magnitude aiding in locating the targets center.
Tuning 1) Set the SIGNAL BALANCE, and GROUND BALANCE, to their NORMAL positions. Set the AUTOMATIC THRESHOLD to the AUTO position. 2) Turn the THRESHOLD clockwise and check the meter to determine conditions of battery pack (must be 75% or higher to operate the detector). The THRESHOLD control, at this point, needs to be readjusted for a very faint hum. The detector will operate well (locate metal) in most locations with the controls at these settings.
Ground Balance Procedure A.) If the THRESHOLD level decreased or faded when the instrument was lifted, turn the GROUND BALANCE control slightly counterclockwise toward (-). Lower the unit back to arm's length, press and release the PUSH BUTTON control, and again raise the instrument about six inches further above the ground while listening to the THRESHOLD hum.
Ground Balance Procedure Continued... is made to the GROUND BALANCE control while the detector is held at arms length like a suitcase. Determine whether the sound increases or decreases when the detector is raised about six inches further above the ground and make the appropriate GROUND BALANCE correction. Lower the loop and press Once TM 808 can be and release the PUSH BUTTON.
Locating Metal The volume will increase and the meter will read higher when the instrument is passed over a buried metal object. When the target is close to the surface, the meter may go full scale and the volume of the beep will increase to maximum. Remember, when searching in the AUTO position, the detector must be kept in motion when trying to find the center of the target. If the detector is stopped over the target, the sound of the signal will fade.
Determining Metal Depths Once the center of a target has been pinpointed, and marked, the approximate depth it is located in the ground can be determined by using the following triangulating method. 1) Move off to one side of the pinpointed target center mark. 2) Set AUTOMATIC THRESHOLD to the NO-AUTO position. Press and release the PUSH BUTTON on the handle, while holding the instrument at arms length. 3) Move directly toward the pinpoint mark stopping when the target first begins to respond.
Caring For Your Instrument 1) Water can damage your instrument. The TM 808 is not water proof, only water resistant. This instrument must be protected from showers, heavy rain, or submersion in water. 2) Clean the control box and antennas with a damp cotton cloth. Automotive or furniture wax can be used to polish this instrument if so desired however, use only cotton cloths. The instrument should be cleaned after heavy use on or around a saltwater beach.
Limited Warranty If within two years (24 months) from the original date of purchase, your White's detector fails due to defects in either material or workmanship, White's will repair or replace at its option, all necessary parts without charge for parts or labor. Simply return the complete detector to the Dealer where you purchased it, or to your nearest Authorized Service Center. The unit must be accompanied by a detailed explanation of the symptoms of the failure.
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Carton / Carry Case Twist & insert each end of handle (provided) through top of shipping carton into second flap. (Carry Case) Peel off protective paper and apply the four (provided) hook & loop tape squares. Two on underside corner of first flap, and two on top outside edge of second flap. (CARRY CASE) White's Electronics, Inc. 1011 Pleasant Valley Road Sweet Home, OR USA 97386 Distribution (800) 547-6911 Factory (541) 367-6121 FAX: 541-367-6629 or visit us on the web at www.whiteselectronics.
