MXT Table of Contents MXT Table of Contents Chapter 1 Assembly ............................................................................... 2 Assembly Instructions ......................................................................................................................... 3 Chapter 2 Batteries ................................................................................. 4 Standard Battery Holder ...................................................................................................................... 4 Using the Standard Battery Holder ................................................................................................................... 4 Rechargeable Battery (Opt.) ................................................................................................................ 5 Battery Check ...................................................................................................................................... 5 Chapter 3 MXT Quick Start .................................................................. 6 Chapter 4 Display ...... ............................................................................8 Coin & Jewelry ................................................................................................................................ 8-9 Relic .............................................................................................................................................10-11 Prospecting .................................................................................................................................. 12-13 Chapter 5 Controls ............................................................................... 14 Mode ............................................................................................................................................ 14-15 Trac................................................................................................................................................16-17 Gain............... .............................................................................................................................. 18-19 Dual Control ................................................................................................................................ 20-22 Disc ....................................................................................................................................... 20-21 SAT ............................................................................................................................................. 22 Threshold ........................................................................................................................................... 23 Chapter 6 Searching............................................................................. 24 Pinpoint Technique ............................................................................................................................ 24 Headphones ....................................................................................................................................... 25 Field Use & Tuning Tips "Coin & Jewelry"................................................................................ 26-27 Field Use & Tuning Tips "Relic" ................................................................................................ 28-29 Field Use & Tuning Tips "Prospecting" ...................................................................................... 30-31 Chapter 7 Information.......................................................................... 32 Proper Care ........................................................................................................................................ 32 Service ............................................................................................................................................... 33 Warranty ............................................................................................................................................ 34 Warranty Transfer .............................................................................................................................. 35 Video and Owner Information ........................................................................................................... 36 1 Chapter 1 MXT Assembly Assembly WASHERS BETWEEN EACH LOOP EAR & CLEVIS Twist and insert each end of handle (provided) through top of shipping carton into second flap. (CARRY CARTON) LOOP OR SEARCH COIL DISPLAY 1/ VDI Numbers 2/ Target Identification 3/ Iron Probability 4/ Target Signal Strength 5/ Target Depth 6/ Pinpoint Location 7/ Battery Voltage CABLE RETAINER CLEVIS LOWER ROD CAMLOCK TRIGGER (behind display) LOOP CABLE Target VDI reference chart for all three modes: /Coin & Jewelry /Relic /Prospecting Trigger behind display has multifunction capability depending on which of the three modes you select "S" ROD CABLE RETAINER ELBOW CUP STRAP ELBOW CUP FOAM PADS INSIDE ELBOW CUP Remove decal paper from the two rubber bumpers. Install on the bottom of the control box, one in each of the front corners (shown below by "X"). Press in place and hold firmly for a few seconds then release. LOOP CONNECTOR CONTROL BOX BOTTOM OF CONTROL BOX BATTERY COMPARTMENT HEADPHONE DOOR JACK BATTERY COMPARTMENT LATCHES 2 Chapter 1 MXT Assembly Assembly Instructions 1. Remove all parts from shipping carton and check the assembly page to make sure all parts are present. 2. There are rubber washers between clevis/lower rod and loop ears. Use only nonmetallic washers, fiber bolt, and thumbnut to secure loop/search coil to clevis/lower rod. 3. Unlock "S" rod camlock and insert clevis/ lower rod into curved "S" rod so that stainless steel spring clip buttons line up and lock into one of the adjustment holes in the curved "S" rod. Turn camlock to secure. The second or third adjustment holes are suitable for average size adults. Individuals 6' or taller should use the fully extended position. Individuals well over 6' tall should purchase the optional Tall Man Rod. 4. Unravel loop cable and wind the cable around the clevis and rod assembly, first revolution over the top of the rod. Wind cable all the way to the top of the curved "S" rod, about five revolutions. Use the black cable retainers, one near the loop, and one near the top of the curved "S" rod, to hold the loop cable in place. 5. Unlock control box rod camlock and insert curved "S" rod so that stainless steel spring clip buttons line up and lock into the rod on top of the control box. The "S" rod is designed to curve up toward the display. However, those who prefer to sweep the loop close to their feet may desire to assemble the "S" rod to curve down toward the ground. Turn camlock to secure. Plug loop connector into control box, screw lock ring to secure. 6. Grip the instrument by the handle, with your arm in the elbow cup with strap secure, and sweep the loop/ search coil over the floor. If the instrument fit feels uncomfortable, adjust the elbow cup by removing and repositioning the bolt/thumbnut and installing in one of the optional positions. If necessary, readjust clevis/lower rod length with the spring clip buttons so that the search coil can be held near the floor without requiring stooping over. 7. Remove the protective paper from the two black elbow cup foam pads. Carefully align pads on the inside of the elbow cup, one on each side of the center rod, and press firmly into place. 8. Adjust the elbow cup strap so that it is loose enough for you to slide your arm in and out without loosening each time you want to set the detector down. The elbow cup strap provides extra leverage and control. However, some prefer not to use it. 9. Install battery as described in the next section, decal facing down, with plastic tab and steel contacts facing toward inside of battery compartment. 10. It should be noted at this point that the detector may not work as expected indoors due to the high degree of metals used in modern construction. It is best to tune and practice out-of-doors to ensure stable, predictable results. Additionally, freshlyburied targets will not produce the normal depth and discrimination results of targets that have been naturally lost and settled in the ground. Due to the abnormality caused by digging a hole in the ground matrix, and the sophistication of the ground rejection circuitry, it may take a number of years for freshly-buried targets to respond at true depths and discrimination accuracy. The best way to determine true detection depth is in real search conditions. 3 Chapter 2 MXT Batteries Batteries Using the Standard Battery Holder 1. Slide open the battery holder lid (decal side of battery holder) by applying gentle upward pressure on the tab of the door so that it unlocks. Slide the door away from the battery box exposing the cell positions. 2. Remove any old cells from the holder. Note the (+) and (-) positions of each cell and the (+) and (-) for each position marked inside the cell tray. Install new "AA" cells noting carefully the correct (+) and (-) positions. If the cells are installed incorrectly, the detector may require service by an Authorized Service Center. 3. Slide the door closed so that it snaps securely. 4. Insert the battery holder into the detector so that the decal is facing down, with the battery holder door tab and metal contact points facing toward the inside of the battery compartment. Close the battery compartment door and secure the two latches on the bottom of the case. Hook the front of each latch first, then press down on the rear. Standard Battery Holder 1. The standard battery holder holds eight "AA" cell batteries equalling 12 volts total. Alkalines are recommended for use with this model. During normal searching conditions you can expect about 40 hours of hunting time from a quality set of eight alkaline batteries. 2. Non-alkaline batteries can be used in this holder. When non-alkalines or rechargeable "AA" cells are used, detecting time (before replacement/ recharge) may be reduced to about 30-35 hours. 3. The battery voltage appears automatically on the display when the Gain is used to turn the MXT "ON". Once the batteries become weak (8 volts) "Lo Bat" will automatically appear on the display during searching. At that point the batteries should be replaced. Alkalines provide some reserve time after "Lo Bat" appears, rechargeable do not. 4. The battery compartment opens by gently pulling down on the front of each of the two latches (on the bottom of the control box) releasing the catch and hinging open the door. 4 Chapter 2 MXT Batteries Rechargeable Battery (Opt.) A rechargeable battery system is not standard equipment with your MXT, however, high quality systems are available. White's rechargeable battery #802-5211, and charger #509-0022 are recommended and offer quick charge and overnight charge options. Rechargeable batteries deliver fairly constant voltage until they're nearly dead. If you use them until they are dead, they will deteriorate more quickly than if you only use them till their voltage starts to drop significantly. Therefore, rechargeables should be taken out of service and recharged as soon as you notice "LoBat" on the display. Rechargeable batteries will not provide the same amount of continuous use as a new set of Alkaline batteries. Non-rechargeable batteries will start to drop in voltage as soon as they are put into use and then steadily diminish in voltage till they die. The Nicad rechargeable battery pack, however, will diminish very slowly (plateau) in somewhat of a flat line and then drop like a rock. Headphone use prolongs all battery life. Battery life will vary a great deal with temperature, number of target signals, battery type, brand, and shelf life. Alkaline Batteries may be used (in a pinch) well into the "LoBat" indication. Rechargeables can not. When traveling far from home it is always a good idea to carry 8 extra penlight alkaline batteries with you. 5 Chapter 3 MXT Quick Start MXT Quick Start Trigger Switch has three positions; 1. Forward (Alternate Mode). 2. Center (Primary Search). 3. Squeeze and Held (Pinpoint). 1 2 3 5 4 TRAC Toggle Three position switch for setting Ground Mineral Tracking. Salt, Lock (hold), and Ground. MODE Toggle Three position switch for setting operating mode. Coin & Jewelry, Relic, Prospecting. GAIN Control Turns the MXT ON/OFF and adjusts the signal strength of targets, ground, and electrical interference. DUAL CONTROL In Coin & Jewelry and Relic Modes establishes the level of trash metal rejection (Discrimination). In the Prospecting Mode establishes Self Adjusting Threshold (SAT), the speed at which the THRESHOLD "hum" recovers from the affects of inconsistencies in ground mineralization. THRESHOLD Control Establis ...