1580 N Harmony Circle Anaheim, Ca. 92807 714-701-9671 Fax 714-701-9672 MD9200 Metal Detector Instruction Manual
MAJOR PARTS OF THE MD9200: 1. Search coil 2. Stem connector & knob 3. Lower stem 4. Stem lock collar 5. Upper stem 6. Search coil cable 7. Cable plug 8. Control head 9. LCD screen 10. ON/OFF switch 11. Volume control 12. Battery compartments 13. Arm rest INTRODUCTION: With your MD9200 you can hunt just about anywhere for coins, relics, jewelry, gold, and silver. It is versatile and easy to use. FEATURES: LCD Display shows the probable type of metal with an arrow; the depth of the target; DISC/NOTCH range; the level of SENS shown in segments; the operating mode; and low battery condition. Three Tone Audio Discrimination sounds distinctive tones for different types of metal. Notch ignores junk metal and finds valuable items by setting the DISC and NOTCH ranges. Super Slow Sweep Identification with a very slow sweep of the search coil to discriminate different types of metal. Headphone Jack lets you connect headphones (not included) for private listening. Waterproof Search Coil for searching in muddy or wet surroundings or in shallow water. 2
BATTERY INSTALLATION: 1) Use two fresh 9 volt alkaline batteries. 2) Do not mix old and new batteries or different types of batteries. 3) Open the right and left battery compartments (located under the control housing) by pushing in the direction indicated by the arrows. 4) Place a 9 volt alkaline battery in each compartment and attach them to the battery clips by matching the (+) and (-) symbols on the clips and on the batteries. See Figure 1. (Fig. 1) ASSEMBLY: 1) Turn the lock collar on the stem counter-clockwise until it loosens. 2) Insert the second stem section and lengthen or shorten the stem so that when you stand upright with the detector in your hand, the search coil is level with and about 1 ½ to 2 above the ground. See Figure 2. (Fig. 2) 3) Turn the stem s lock collar clockwise to lock the two pieces together. See Figure 3. 3
(Fig. 3) 4) Unscrew the knob on the search coil and remove the knob connector. See Figure 4. Insert the stem and align the holes on the search coil bracket and the stem. Push the connector through the holes and tighten the knob. See Figure 5. (Fig. 4) (Fig. 5) 5) Attach the control head to the stem. Position the control head so that the slot on its underside is aligned with the black tab on the stem. See Fig. 6. Place the slot over the stem and push the control head forward. Now tighten the thin bolt that passes through the stem and holds the control head firmly in place. See Fig. 7. (Fig. 6) (Fig. 7) 6) Loosely wind the search coil cable around the stem. Leave some slack in the cable. 7) Insert the cable plug into the jack on the detector s control head. CAUTION: The plug fits into the jack correctly in only one way. Do not force the connection or you may damage the plug. 4
FEATURE REVIEW: (Fig. 8) 1) The target indicator includes target icons and other LCD displays. It can indicate coins of different types, gold, silver and junk. 2) When the detector finds an object an arrow appears below the target icon, indicating the probable metal being detected, as well as the depth of the target. 3) If the detector receives a strong signal the arrow appears steady. 4) If the signal is weak the arrow blinks or does not appear. 5) If detecting is paused for about 5 seconds the arrow will disappear. 6) When an arrow points to a coin icon the detector might be detecting either a coin or another type of metal (such as jewelry, tokens, medals, or even junk metal) about the same size and type as the coin. 7) The icons are approximations. The detector might not have found the item indicated. These indications are only visual references to help you decide if items are worth investigating. 8) 5 (Nickel) Indicates that the target is probably 5 or a nickel. 9) Pull Tab Indicates that the target is probably a pull tab from an aluminum can. Some rough gold items may register this way. 10) S-Caps Indicates that the target is probably a type of metal like a bottle cap. Small gold items might also register here. 11) 1 - Indicates that the target is probably a zinc or copper penny. Some large gold items can register under this icon. 12) 25 - Indicates a probable quarter has bee detected. Some large aluminum coins may register here. 13) Nail & bottle cap range This is where scrap iron and steel items will usually be registered. TONES: If the detector is set to the ALL METAL target mode, it sounds a single tone when it detects any type of metal. If you set the detector to the DISC or NOTCH modes, the built-in audio identification system sounds a unique audio tone for each of three metal categories. This makes it easier to identify the metal being detected. The detector sounds a low tone when it detects small gold items, nails, bottle caps or nickels. 5
A medium tone indicates aluminum pull tabs and zinc or copper items. A high tone indicates items of silver or brass. EXCEPTIONS (a) When the detector is set to DISC or NOTCH modes it sounds a medium or high one when it detects highly oxidized iron. (b) Depending on the alloys used in their making, about 15% of gold rings will cause the detector to sound a medium tone. OPERATION: 1) Slide the POWER switch to the ON position. 2) All segments on the LCD screen will light and the detector will produce high, mid and low audible tones. 3) After two seconds the LCD screen will enter a stand-by state. The LCD screen will display the words ALL METAL and SENS. The value of SENS will be 5. The full range from MIN. to MAX. for DISC/NOTCH is available. 4) Set the detector function to ALL METAL. Turn the SENS control until the LCD screen shows 5 Inches. FUNCTIONS: All Metal 1) Press the ALL METAL button to set the ALL METAL mode. In this mode the MD9200 will respond to all hidden metals and the LCD screen displays ALL METAL, DISC/NOTCH, and SENS. The inch value displayed gives an indication of the sensitivity of the detector. To change the sensitivity: (A) Press the SENS button. (B) Press the (+) or (-) symbols. The LCD display will show the changed sensitivity. 2) Sweep the MD9200 from side to side while keeping the search coil about 1 2 inches (2 4cm) above the ground. The TARGET arrow will indicate different icons on the screen, depending on which type of metal and object is being detected. 3) The words COIN DEPTH will appear on the LCD screen. The inch value showing on the LCD screen indicates the depth of the metal being detected. Note: The depth level is standardized to an object the size of a quarter. This means that a larger object will be deeper than the shown depth and a smaller object will be at a shallower depth than that indicated on the screen. 4) In the ALL METAL mode the MD9200 will produce an audible mid-tone when a metal object is detected. 6
Discrimination 1) Press the DISC button to set the DISCRIMINATION mode. In this mode the LCD screen displays DISC and the Max level (the first level) of the DISC/NOTCH display lights up. 2) Press the DISC/NOTCH button, then press the (+) or (-) buttons to adjust the discrimination range. The DISC/NOTCH display will change accordingly. The patterns on the LCD screen also change depending on the different discrimination ranges. For example: The left four pillars of the DISC/NOTCH display light up to indicate that a quarter or a penny can be detected. However screw caps, pull tabs and iron nails will not be detected. 3) In this mode the detector produces a low audible tone when it detects objects such as screw caps, nails and nickels. Notch 1) Press the NOTCH button to set the unit to the NOTCH mode. 2) In this mode, NOTCH appears on the LCD screen and the Min. and Max. Levels (the initial levels) of the DISC/NOTCH pillars light. 3) To adjust the NOTCH range, press the DISC/NOTCH button. Then press the (+) or (-) icons. The DISC/NOTCH display pillars will light up, starting at both the right and left sides. The pattern left unlit in the middle shows the metal being notched, or chosen for detection. 4) In this mode the detector produces a low audible tone when it detects objects such as screw caps, nails and nickels. NOTES 1) A battery icon display indicates that the batteries are weak and should be replaced. 2) When hunting for different coin types it s a good idea to set the SENS to 4.5 inches. This is because the alloys used in pull tabs and some coins can affect the accuracy of the unit. 3) The sweeping speed and the height of the search coil above the ground will also affect accuracy. We suggest a slow sweeping action and a height of about 1 2 inches (2 4 cm) above the ground. 4) While sweeping the search coil back and forth try to keep it level with the ground for the entire width of the sweep. If you tilt the search coil you will not obtain an accurate reading. 7
PINPOINTING Accurate pinpoint location of a detected object takes practice and is best accomplished by X-ing the suspected target area. 1) Once a buried target is indicated by a good tone response, continue sweeping over the target in a narrowing side to side pattern. 2) Take visual note of the place on the ground where the beep happens as the coil is slowly moved from side to side. 3) Stop the coil at this spot. Now move the coil straight forward and straight back toward you a couple of times. Again, make a visual note of where the tone occurs. REMEMBER: The detector will beep just as the center of the search coil passes over a small buried target. If you have difficulty pinpointing very strong signals try lifting the coil higher from the ground until a weaker, but more definite signal is heard. For very weak signals try moving the coil in short quick sweeps closer to the ground. Figure 15 Note: The detector is normally silent during operation until the search coil passes over a metallic object. WATER RESISTANCE The MD9200 s search coil is water resistant for use in shallow water or in wet and muddy areas. However the control box must be kept dry. After use in salt water, rinse the search coil and stem in fresh water. TIP: If your metal detector fails to operate, first check the batteries strength and installation. You might also turn the power switch on and off a few times. WHERE TO USE YOUR DETECTOR Your MD9200 metal detector is a very versatile instrument. It can be used to search for lost coins, jewelry or other metal items. It is also useful for hunting for historic relics. 8
Hunting for lost coins is a common use for a metal detector. This hobby is often called coin shooting. Lost coins can be found wherever people have lived, played or traveled. Here are some places you might try searching: - around old houses, especially near large trees where people may have sat to rest. - playgrounds in parks or around schools. - along the grassy areas next to sidewalks. - under grandstands. - sites where annual fairs, carnivals or circuses set up. - along beaches, or in grassy or sandy areas near swimming pools. - deserted homes or settlements. - local areas where historic events such as battles occurred, or where troops may have traveled or camped. - your own front and back yards. TIPS TO REMEMBER 1) Always ask permission of the property owner before searching. Found objects are usually the property of the landowner unless you come to a different agreement. It is a good idea to check current local, provincial, state or federal laws. 2) Metal detecting is usually forbidden at historic sites, national and provincial or state parks. Check before detecting. 3) Some municipalities may require you to obtain a metal detecting license and to display it while detecting. These are usually very inexpensive. Call your local town hall, city hall or municipal office. 4) Properly dispose of any trash you find when detecting. Do not leave it for other coin hunters to find. 5) When recovering lost items always make the smallest hole possible and return the ground surface appearance to the way it was before you started to dig. 6) Do not use a shovel to dig! Many coin hunters use a small garden trowel and a flat bladed screwdriver. Probe gently to locate your target item. A brass rod with a smooth tip is useful to probe for coins because it will not usually scratch them. 7) When searching in sand you will find it easier to use a scoop with small holes. You can make your own with a well-rinsed empty plastic bleach jug 9
into which you have carefully drilled a series of 1/2 diameter holes. Use sharp scissors to cut off the bottom of the jug and shape the scoop. 8) If the coins you find are encrusted in dirt and grime you should be very careful in cleaning them, especially if they are old and of possibly high value. Do not use harsh chemicals or abrasives. You might try and soak them for a day or two in olive oil and then rub them gently with an old towel to remove the dirt. BATTERY INFORMATION: This unit uses (2) 9 volt batteries. Always use fresh batteries. Do not use rechargeable batteries. If the detector will not be used for a long time, remove the batteries. Non-rechargeable batteries are not to be recharged. Different types of batteries or new and used batteries are not to be mixed. Do not take batteries apart. Exhausted batteries are to be removed from the detector. The supply terminals should not be short-circuited. Do not dispose of batteries in fire. They may explode.! WARNING! CHOKING HAZARD Small parts. Not suitable for children under 3 years. 10