metal detector 98760 Set up and Operating Instructions Distributed exclusively by Harbor Freight Tools. 3491 Mission Oaks Blvd., Camarillo, CA 93011 Visit our website at: http://www.harborfreight.com Read this material before using this product. Failure to do so can result in serious injury. Save this manual. Copyright 2008 by Harbor Freight Tools. All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing improvements, actual product may differ slightly from the product described herein. Tools required for assembly and service may not be included. For technical questions or replacement parts, please call 1-800-444-335
Save This Manual Keep this manual for the safety warnings and precautions, assembly, operating, inspection, maintenance and cleaning procedures. Write the product s serial number in the back of the manual near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and the receipt in a safe and dry place for future reference. Important Safety Instructions In this manual, on the labeling, and all other information provided with this product: This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE is used to address practices not related to personal injury. CAUTION, without the safety alert symbol, is used to address practices not related to personal injury. When using this Metal Detector, basic safety precautions should always be followed to reduce the risk of personal injury, including the following: Read All Instructions Personal Safety Wear ANSI-approved safety goggles and heavyduty work gloves. Use face or dust mask if operation is located in dusty area. Stay Alert - Watch what you are doing. Use common sense. Do not operate this Metal Detector when you are tired. DO NOT use this Metal Detector if under the influence of alcohol or drugs. Read warning labels on prescriptions to determine if your judgement or reflexes may be impaired. If there is doubt, do not operate this Metal Detector. Avoid electrical shock. 4. Metal detector may discover underground power lines, explosives and/or other items which could cause personal injury. DO NOT use this product in areas where there might be under- SKU 98760 For technical questions, please call 1-800-444-335 Page 2
4. 5. 6. 7. ground electric lines, or pipes buried in shallow depth. NEVER search in military zones where any type of explosive may be buried. Avoid striking any line and/or conduit known or suspected to be carrying electric power. Do not search over any pipeline, particularly if it could contain a flammable gas or liquid. In areas of uncertain conditions, use reasonable caution before using the Metal Detector. IF THERE IS ANY QUESTION OF SAFETY, DO NOT USE THIS METAL DETECTOR. Use and Care Handle the Metal Detector carefully. Dropping can cause damage to circuit boards and/or the case, which can cause the Metal Detector to fail, or work improperly. Avoid Dangerous Environments - Do not use in damp or wet locations. Only use and store this Metal Detector in normal temperature environments. Extremes in temperature can shorten the effectiveness of any electronic device and/or damage plastic parts. When servicing, use only identical replacement parts. Do not use this Metal Detector for any purpose except that for which it is intended. Store Indoors. When not in use, store in dry place and keep out of the reach of children. Maintain Metal Detector with care. Follow instructions. Keep the Search Coil clean. The Search Coil is waterproof and may be washed. 8. Do not submerge the Control Housing. Protect the Control Housing from rain and blowing surf or heavy mist. Wipe the aluminum Stem clean after use in sandy areas. 9. 10. 1 Check for Damaged Parts - Before further use of the Metal Detector, check for breakage of parts, and any other condition that may affect its operation. A part that is damaged should be properly repaired or replaced by a qualified technician unless indicated elsewhere in this manual. Maintain labels and nameplates on the Metal Detector. These carry important safety information. If unreadable or missing, contact Harbor Freight Tools for a replacement. The warnings, precautions, and instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator. Save these instructions. SKU 98760 For technical questions, please call 1-800-444-335 Page 3
Construction Materials Earphone Port Adjustable Length Power Source Search Coil Adjustment Specifications Housing, Support Arm, Meter Housing and Search Coil: PVC Thermoplastic. Stem: 2-Piece Aluminum Shaft. 1/8 Diameter Jack. Earphones not supplied. 31 Minimum, 43 Maximum (Overall). 6-AA Batteries 5V (Not Supplied). 180 Operating Instructions Read the entire Important Safety Information section at the beginning of this manual including all text under subheadings therein before set up or use of this product. Before operating the Metal Detector, put on ANSI-approved safety goggles and other safety gear. Safety goggles and other safety gear are sold separately. Unpacking When unpacking, check to make sure that the item is intact and undamaged. If any parts are missing or broken, please call Harbor Freight Tools at the number shown on the cover of this manual as soon as possible. Set Up Instructions Read the entire Important Safety Instructions section at the beginning of this manual including all text under subheadings therein before set up or use of this product. Turn off the Volume Control. Figure 1 Battery Compartment Cover (37) Battery Compartment (36) To prevent accidental operation: Turn the Power Switch of the Metal Detector to its OFF before making any adjustments. ASSEMBLY NOTE: There is NO assembly required for this Metal Detector. Install batteries (not supplied). The Battery Compartment (36) is located on the underside of the Control Housing (9,17). Remove the Battery Cover (37). Insert 6-AA batteries being careful to follow the Plus (+), and minus (-) polarity markings inside the Battery Compartment (36). Replace the Battery Compartment Cover (37). See Figure 1, above. SKU 98760 For technical questions, please call 1-800-444-335 Page 4
4. NOTE: Always remove old batteries if the Metal Detector will be unused for a prolonged period of time. Batteries can leak chemicals that can damage and/or destroy electronic parts. 5. NOTE: Use only fresh AA batteries. DO NOT mix old and new batteries. DO NOT mix standard and rechargeable batteries. Always dispose of old batteries in accordance with all local and federal regulations. arm relaxed at your side. Twist the Lock Nut Cover (29) that holds the two sections of the Stem Arm (24,26) together clockwise to loosen. Then push/pull the Inner Stem (26) to the desired length and twist the Lock Nut Cover (29) counterclockwise to lock the stem. Do not overtighten. See Figure 2 below. Figure 2 Control Functions 4. 5. Power Switch: Thumb Dial Marked: ON/OFF, Volume and Direction Arrow. Audio Buzzer: Earphone Jack. SENS (Sensitivity) Dial: Twist Marked MIN/MAX. DISC Dial: Twist Marked ALL METAL to DISC. Lo-Battery Indicator on View Meter Clockwise to loosen Lock Nut Cover (29) Counterclockwise to tighten Search Coil, Stem Arm and Controls Adjustment Adjust the Search Coil (33). Loosen the Knobs on the end of the Inner Stem Arm (26) located just above the Search Coil (33). Adjust the Search Coil (33) to the desired angle (parallel with the ground). Tighten the Knobs just enough to keep the Search Coil (33) from rotating or wobbling. Adjust the Stem Arm (24,26) to the correct height. You want to be able to stand comfortably upright with the Search Coil (33) able to sweep the ground from side to side at a level of 1/2 to 2 from the ground with your 4. Test the Metal Detector by laying coins (copper, nickel or silver) on the ground. You can also lay gold, brass, tin or steel or any metal that you wish to detect. Sweep the Search Coil (33) just above the items and set the DISC Dial (15). Adjust the Volume to a comfortable level. NOTE: You can extend the life of your batteries by using earphones (not supplied). Earphones also make it easier to distinguish subtle changes in the sounds you are hearing for better detection results as well as for blocking out some of the area noise. SKU 98760 For technical questions, please call 1-800-444-335 Page 5
5. 6. If you are using a set of earphones (not supplied), test and set the volume at its lowest setting before attempting to search for objects. This will prevent the possibility of hurting your ears while using your Metal Detector. Set the SENS (Sensitivity) Dial (13) clockwise for higher sensitivity. Set the needle on the View Meter (5) to 8 when the Search Coil (33) is directly above the metal it is detecting. Take a different reading for each type of metal. Figure 3 View Meter (5) Earphone Jack (35) operational mode. Set it to DISC mode to discriminate between types of metal. 8. NOTE: You will ordinarily set the DISC Dial (15) to All Metal unless you know the specific metal you are looking for. (See Table 1 for sample readings, below.) Setting of DISC Near 11:00 Near 12:00 Near 13:00 Near 15:00 Table 1 Metal Detected Iron Nickel Coin, Aluminum Pull Tab Zinc Coin Coper Coin The readings for the DISC Dial (15) are based on a 24 hour clock (military time). 12:00 would be straight up. For 15:00, the DISC Dial (15) would be pointed to the right center. By paying attention to where the DISC Dial (15) is set when various metals are detected, you can understand where to preset the DISC Dial (15) before starting to look for specific metals. (See Step 7 of this section for testing ideas.) DISC Dial (15) Volume SENS Dial (13) 9. This Metal Detector will also search in shallow water. The Search Coil is waterproof. NOTE: If you use it in salt water, be sure to flush the Search Coil with fresh water afterward to prevent corrosion. 7. Set the DISC Dial (15) to All Metal mode for sensing anything metallic (ferrous or non-ferrous) within range of the Detector. All Metal is the best SKU 98760 For technical questions, please call 1-800-444-335 Page 6
4. 5. 6. 7. Using the Metal Detector to Search Set the DISC Dial (15) to All Metal mode, and the SENS Dial (13) to high position (the larger white dots). Hold the Search Coil (33) parallel with the ground about 1 above the surface. Sweep the Search Coil (33) from side to side in a 3 arc. When the Metal Detector detects a buried metal object, it sounds a beep. Make a visual note of the exact spot on the ground where the beep sounds. Move the Search Coil (33) forward and away from you and straight back towards you a few times while rotating the DISC Dial (15) clockwise away from All Metal, until the unit does not beep. You can then identify what type of metal has been detected according to the position of the DISC Dial (15). The reading on the View Meter (5) will read higher for larger deposits of metal. When you are finished using the Metal Detector, turn it off. Clean the exterior surfaces with a soft cloth, then store it indoors in a dry place, out of the reach of children. Listening Safely Set the volume to lowest setting before you begin listening. After you begin, adjust the volume to a comfortable level. volume can lead to partial or permanent hearing loss. Maintenance And Servicing Procedures not specifically explained in this manual must be performed only by a qualified technician. To prevent serious injury: Do not use damaged equipment. If anything abnormal occurs, have the problem corrected before further use. Cleaning and Maintenance BEFORE EACH USE, inspect the general condition of the Metal Detector. Check for loose screws, missing parts, cracked or broken parts, damaged electrical wiring, and/or any other condition that may affect its safe operation. After Use, clean external surfaces of the Metal Detector with soft, clean cloth. WARNING: Do not listen at extremely high volume levels. Extended high SKU 98760 For technical questions, please call 1-800-444-335 Page 7
Troubleshooting Problem Possible Causes Likely Solutions Metal Detector will not Old or worn batteries. Check battery position for correct turn on polarity. No response to any metal Battery voltage too low. Defective meter. Replace with fresh batteries of similar type. Check and replace batteries. Have View Meter checked. If necessary, replace. Have all work done by qualified technician. Follow all safety precautions whenever diagnosing or servicing the appliance. Disconnect power supply before service. PLEASE READ THE FOLLOWING CAREFULLY The manufacturer and/or distributor has provided the parts list and assembly diagram in this manual as a reference tool only. Neither the manufacturer or distributor makes any representation or warranty of any kind to the buyer that he or she is qualified to make any repairs to the product, or that he or she is qualified to replace any parts of the product. In fact, the manufacturer and/ or distributor expressly states that all repairs and parts replacements should be undertaken by certified and licensed technicians, and not by the buyer. The buyer assumes all risk and liability arising out of his or her repairs to the original product or replacement parts thereto, or arising out of his or her installation of replacement parts thereto. PARTS LIST Part Description Q ty 1 PCB 1 2 Screw M3 X 8 2 3 Nut M3 2 4 LED 1 5 View Meter 1 6 Washer 3mm 2 7 Screw M3 X 8 2 8 Control Panel 1 9 Support Arm (Right Side) 1 10 Nut M4 4 11 Screw M3 X 18 4 12 Screw M3 X 14 1 13 SENS Dial 1 14 Knobs 2 15 DISC Dial 1 16 Speaker 1 17 Support Arm (Left Side) 1 18 Screw M3 X 25 2 19 Cap 1 PARTS LIST Part Description Q ty 20 Left Arm Rest Support 1 21 Screw M3 X 12 3 22 Right Arm Rest Support 1 23 Support Arm Adjustment Knob 1 24 Outer Stem 1 25 Washer 1 26 Inner Stem 1 27 Lock Nut Interior 1 28 Lock Nut Exterior 1 29 Lock Nut Cover 1 30 Bushing 1 31 Coil Button (Nut) 1 32 Coil Button (Screw) 1 33 Search Coil 1 34 Support Arm Pad 1 35 Earphone Jack 1 36 Battery Compartment 1 37 Battery Compartment Cover 1 SKU 98760 For technical questions, please call 1-800-444-335 Page 8
ASSEMBLY DIAGRAM Record Product s Serial Number Here: Note: If product has no serial number, record month and year of purchase instead. Note: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SKU 98760 For technical questions, please call 1-800-444-335 Page 9