Harbor Freight Tools 43150 User's Manual
Contents
1. Resistor 22 kohm Resistor 10 ohm Resistor 1 Mohm Resistor 75 kohm Resistor 100 kohm Resistor 10 kohm Resistor 10 kohm Resistor 820 ohm Resistor 820 ohm Resistor 51 kohm Resistor 820 ohm Resistor 27 kohm Resistor 15 ohm Resistor 100 kohm Resistor 470 kohm Resistor 51 ohm Protentionmeter 52 S3 Miscellaneous and Connection Wire 43150 50K B 30ZS 13 Disc Control 5K 2 5K B 30Z8S 13 Volume Control 10 3025 13 Tune Control Button Switch 2P2T Side Switch NOR B1 Insulated Wire Red 230 mm Long Ear Socket Insulated Wire Yellow 230 mm Long Ear Socket Insulated Wire Green 230 mm Long Ear Socket Insulated Wire Blue 230 mm Long Ear Socket Insulated Wire Purple 200 mm Long Speaker Insulated Wire Grey 200 mm Long Speaker Insulated Wire White 180 mm Long Battery Box Insulated Wire Black 180 mm Long Battery Box Insulated Wire Brown 160 mm Long Meter RT14 0 25 RJ14 0 25 14 0 25 HT14 0 25 RT14 0 25 14 0 25 RT14 0 25 RT14 0 25 RT14 0 25 RT14 0 25 RT14 0 25 HT14 0 25 14 0 25 HT14 0 25 14 0 25 RT14 0 25 RT14 0 25 RT14 0 25 RT14 0 25 RT14 0 25 14 0 25 RT14 0 25 RT14 0 25 14 0 25 14 0 25 RJ14 0 25 RT14 0 25 RT14 0 25 RT14 0 25 RT14 0 25 HT14 0 25 RT14 0 25 PBS 2201 NL SS22F18G10 DUY 3 1 10x7 0 15 DUY 3 1 10x7 0 15 DUY 3 1 10x7 0 15 DUY 3 1 10x7 0 15 DUY 3 1 10x7 0 15 DUY 3 1 10x7 0 15 DUY 3 1 10x7 0 15 DUY 3 1 12. able After finding a metal item wait a few seconds after the tone stops before continuing this allows the detector time to reset You can also press the red button on the handle to return the pointer to the center of the viewmeter Fine Tuning the Metal Detector Once you practice with the unit you can fine tune it to make it more selective in what is found The ability to distinguish between different types of metal is termed discrimination 43150 Page 6 The DISCRIMINATION setting determines whether the detector will distinguish be tween different types of ferrous and non ferrous metals You can set DISCRIMINATION to the minimum level fully counterclockwise or to the maximum level fully clockwise or anywhere in between As you set it to higher levels the detector first does not detect small pieces of silver paper then thick foil and finally metal objects like pull tabs from soda cans see Figure 15 Note As you move to a new area you must adjust DISCRIMINATION VOLUME DISCRIMINATION As you sweep the search coil back and forth over the ground surface you will recognize the difference between signals that occur at random and signals that are stable and repeatable The key is to dig only for those targets that produce a strong repeatable signal This will prevent you from wasting time focusing on trash induced signals MN MAX Figure 15 No metal detector is totally accurate Many conditions influence th
3. People with pacemakers should consult their physician s before using this product Electromagnetic fields in close proximity to a heart pacemaker could cause interference to or failure of the pacemaker Warning The warnings cautions 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 Unpacking When unpacking check to make sure all parts shown on the Parts Diagram and Parts List are present If any parts are missing or broken please call Harbor Freight Tools at the number on the cover of this manual Preparing to Operate Adjusting the Stem 1 Turn locknut clockwise until it becomes loose see Figure 1 Adjust the stem so when you are standing upright with the detector in your hand the search coil is level with and about 1 2 to 2 inches above the ground when your arm is relaxed at your side see Figure 2 wie lt Wrong Figure 1 Figure 2 Knobs Turn the stem s lock nut counterclockwise to lock it in place Adjusting the Search Coil Loosen the Knobs at the end of the Search Coil the Search Coil should be parallel with the ground Tighten the Knobs enough to keep the Search Coil from wobbling or rotating see Figure 3 Figure 3 43150 Page 3 Rev 05 06 Battery Installation E
4. 0x7 0 15 DUY 3 1 10x7 0 15 Page 9 WIRING DIAGRAM SN SHIM Page 10 43150 MECHANICAL PARTS LIST rerne TS 1 Push Button Red QC8 337 012 2 Push Button Switch PBS 2201 NL 3 Handle Left 50 8 333 012 4 Handle Right QC8 333 011 5 Screw ST2 9 x 12 GB845 85 6 Nut M3 Handle Mounting GB39 88 7 Control Box Top SQC6 116 046 8 Meter M3005 9 Speaker Paper 50 7 844 016 YD 50 8 ohm 0 25 Control Knob SQC8 337 333 Main PCB Board SQC2 908 527 Lining Board 50 7 840 251 20 20 50 7 840 253 Screw ST2 9 x 12 GB845 85 Sponge SQC7 840 252 Earphone Socket Control Box Bottom SQC6 116 047 Screw x 20 GB818 85 Battery Cover SQC7 852 074 Screw ST2 9 x 12 GB845 85 Screw M3 x 40 Controller Box Mounting GB820 85 Screw M3 x 25 GB820 85 GB61 72 86 SQC7 756 009 SQC7 756 008 SQC6 680 011 SQC6 354 022 SQC8 225 012 SQC8 220 081 SQC8 220 011 SQC6 354 021 SQC7 860 081 Aluminum Stem Large 919 mm Aluminum Stem Small 216 mm Search Head Head Fixing Knob Screw Side Stem Lock Ring Threaded Stem Lock Ring Stem Lock Ring Head Fixing Knob Nut Side Bushing PACKING SQC8 840 052 Plastic Packet Gift Box 50 6 876 213 SQC6 876 212 Spacer SQC8 865 017 Spacer S
5. Metal Detector Model 43150 Assembly and Operating Instructions Visit Our Web Site http www harborfreight com 3491 Mission Oaks Blvd Camarillo CA 9301 1 Copyright 2000 by Harbor Freight Tools9 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 For technical questions and replacement parts please call 1 800 444 3353 Revised Cover 09 04 Specifications Stem Length 15 1 2 X 28 1 2 Coil 6 1 2 Diameter Power Supply Qty 6 AA Batteries Battery Tester Yes built in Audio 3 distinctive sounds for different metals Weight 1 8Lbs Save This Manual You will need the manual for the safety warnings and precautions assembly instructions operating and maintenance procedures parts list and diagram Keep your invoice with this manual Write the invoice number on the inside of the front cover Keep the manual and invoice in a safe and dry place for future reference Safety Warnings and Precautions WARNING When using tool basic safety precautions should always be followed to reduce the risk of personal injury and damage to equipment Read all instructions before using this product 1 Handle the Metal Detector carefully at all times Dropping the Metal Detector can cause damage to circuit boards and the case which can cause the product to work improperly 2 Only use and store th
6. QC8 865 016 Spacer 50 8 865 018 Lining SQC8 866 194 Manual 43150 11 PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS MANUAL AS REFERENCE TOOL ONLY NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES ANY REPRESEN TATION 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 PROD UCT 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 Note Some parts are listed and shown for illustraion purposes only and are not available individually as replacement parts 1 No output sound and meter reading 2 No sound or noisy 3 No meter indication 4 Auto Tune does not function 5 No response to any metal 6 Sensitivity too low 43150 TROUBLESHOOTING Defective battery clip Broken battery wire to PCB Defective VOLUME Control RV3 Switch S1 Open speaker Broken speaker or earphone jack connections Defective headphone jack Q5 Q6 Defective Defective meter connection Defective meter Broken auto tu
7. UM E The Metal Detector requires the use of six AA bateries Do not mix old and new batteries and not mix different types of oe x 7 batteries o 1 If the Metal Detector is on turn the volume on the control housing to OFF see Figure 4 2 Press on the battery compartment cover and slide the cover off in the direction of the arrow see Figure 5 3 Insert the batteries into the compartment as indicated by the polarity symbols and which are marked inside the compartment see Figure 6 Replace the cover Remember to remove batteries if you do not plan on using the Metal Detector for a week or more s Figure 5 Figure 6 Figure 4 Testing Batteries Always test the battery power when the Metal Detector does not turn on has weak volume will not tune properly or has erratic operation Rotate VOLUME away from OFF and set OPERATE BATT to BATT TEST see Figure 7 If the pointer on the viewmeter is between 3 and 6 green area the batteries have enough power to operate the detector If the pointer is not in the green area replace the batteries Figure 7 Using Earphones Stereo earphones not included can be connected to the Metal Detector Using earphones saves battery power and makes it easier to identify changes in the sound patterns Earphones are connected to the ear jack on the side of the Control Housing FAR Figure 8 see Figure 8 When using earphones protect your hearing by a Set the volu
8. at the search coil is properly connected The detector may also need to be fine tuned see directions below and on the next page Figure 13 Outdoor Testing and Use 1 Locate an area outdoors where there is no metal present Place a sample of the material to be tested coin or gold ring on the ground 2 Rotate VOLUME about two thirds clockwise 3 Press and release the red button on the handle Slowly rotate TUNE until the pointer is at or near 0 A tone should be barely heard 4 With the search coil being held approximately 1 to 2 Right inches above the ground slowly move the search over the area where you placed the sample Sweep in a side to side motion as follows S lt Sweep slowly to avoid missing targets Never raise the sweep sees coil while sweeping sweep back and forth as if it was a HU pendulum see Figure 14 Figure 14 If the detector successfully detects the material it will sound a tone and the pointer will move to the type of metal it found If nothing was detected try again make sure the search coil is being moved properly The detector will respond strongly when it detects most valuable metal oljects If the signal does not repeat after being swept over the target a few times the target is probably junk metal False signals can occur from electrical interference large irregular pieces of junk metal or finding trash on the ground False signals usually occur broken or are non repeat
9. e Metal Detector in normal temperature environments Extremes in temperature can shorten the effectiveness of electronic devices and melt or damage plastic parts 3 Avoid electrical shock Any metal detector may discover underground power lines explosives or other items which when struck could cause personal injury Do not use this product in areas where there might be underground electric lines or pipes buried at shallow depths Never search in military zones where bombs or other explosives may be buried Avoid striking any line known or suspected to be carrying electric power Do not search 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 about a condition being safe of unsafe do not operate the Metal Detector 4 Keep the Metal Detector clean Wipe the housing after each use The search coil is washable and can be fully submerged Never submerge the control housing Protect the control housing from rain blowing surf and heavy mist Disassemble the stem and wipe it clean after use in sandy areas 5 Dress properly Do not wear loose clothing or jewelry as they can be caught in moving parts Protective electrically nonconductive clothes and nonskid footwear are recommended when working Wear restrictive hair covering to contain long hair 6 Use the right tool for the job Do not attempt to force a small to
10. e success of metal detection Among the factors that influence results are the angle at which the object rests in the ground the depth of object the amount of iron the object contains and the size of the object To accurately pinpoint a target 1 Once the detector detects a target that is buried continue to sweep the search coil over the target in a narrowing side to side motion 2 Stop the search coil directly over the spot on the ground Then move the search coil straight forward away from you and straight back towards you Make a mental note of the exact spot on the surface where the detector beeps Repeat these steps in an X pattern The target should be directly below the X at the area where the loudest response is heard Troubleshooting Problem Suggestion for Cure False signals are being displayed Sweeping too fast or at the wrong angle Heavily oxidized metals are detected Pinpoint the target from several different angles If the detector does not display and sound the same signal each time the target is probabley heavily oxidized metal Once a target is found the display does not show the correct metal type May be more than one target in the area If target is heavily oxidized an incorrect reading may occur This does not signify a problem with the detector It may be a type of metal which is not recognizable to the detector 43150 Page 7 ELECTRICAL PARTS LIST Ceramic 0 01 uF 10 63 V Ceramic 0 01 uF 10 63 V C
11. en release the red button Figure 10 As the search continues you can fine tune the detector using DISCRIMINATION Note To return the pointer to 0 at any time simply press down on the red button Red Button Figure 11 To Test and Use the Metal Detector Before using the detector for the first time you should test the unit to see how it reacts to differnet metals You can conduct this test outdoors or indoors For indoor test 1 After removing watches rings or any other metal jewelry place the detector ona wooden or plastic table search coil s angle so that the flat part faces upward see Figure 12 Note never test on a floor inside a building as it may have a type of metal present 2 Rotate VOLUME to the 11 O clock position 3 Set DISCRIMINATION to its midpoint 4 Take the sample of material to be tested example or gold ring and place it about 2 inches above the search coil Note the Metal Detector will not detect without motion You must move the object since you are not sweeping the Metal Detector Figure 12 43150 Page 5 For Indoor Test continued 5 If the detector detects the material it sounds a tone and the pointer moves to the left ferrous or to the right non ferrous while the detector determines the type of metal it is detecting see Figure 13 Ferrous Non Ferrous 6 If the detector does not detect the material the battery power may be low Also verify th
12. eramic 560 pF 10 100 V Mylar 0 1 uF 10 100 V Ceramic 560 pF 10 100 V Electric 100 uF 50 10 10 V Ceramic 0 01 uF 10 63 V Mylar 0 1 uF 10 100 V Electric 47 uF 50 10 10 V Ceramic 0 01 uF 10 63 V Mylar 0 01 uF 10 63 V Ceramic 0 01 uF 10 63 V Ceramic 0 047 uF 10 63 V Electric 47 uF 50 10 10 V Ceramic 0 1 uF 10 63 V Mylar 0 15 uF 10 100 V Mylar 0 15 pF 10 100 V Mylar 0 01 uF 10 63 V Mylar 0 47 uF 10 100 V Ceramic 0 01 uF 10 63 V Ceramic 0 01 uF 10 63 V Zaner Diode BS 62 5 6 V BS 62 5 6 V Redtify Diode IN4001 144001 Zaner Diode DS 62 9 1 V BS 62 9 1 V intergrated Circuits CD4069 CD4069 CD4070 CD4070 LM358 LM358 CA3140 CA3140 L1 Transmitter Coil 50 5 775 019 L2 Receiver Coil SQC5 775 020 L3 Inductor 15 uH LGA0307 R15K L4 Inductor 15 uH LGA0307 R15K Transistors Transistor 9015C Transistor 9014C Transistor 9013G Transistor 9014C Transistor 9014C Transistor 9013G Mylar is a registered trademark of E l DuPont de Nemours and Company 43150 Page 8 ELECTRICAL PARTS LIST CONTINUED EE Resistor 100 kohm Resistor 6 8 kohm Resistor 430 kohm Resistor 220 ohm Resistor 47 ohm Resistor 100 kohm Resistor 100 kohm Resistor 430 kohm Resistor 150 kohm Resistor 1 5 kohm Resistor 330 kohm Resistor 100 kohm Resistor 1 Mohm Resistor 330 kohm Resistor 47 kohm Resistor 100 kohm
13. me to the lowest setting before you begin listening Adjust the volume to a comfortable level b Never listen at extremely high volume levels permanent hearing loss can result c Once the volume is set do not increase it Over time your ears adapt to the volume level so a volume level that does not cause discomfort might still damage your hearing 43150 Page 4 Operation This metal detector distinguishes between ferrous and non ferrous metals Ferrous metals contain iron Non ferrous metals do not examples gold silver copper platimum aluminum lead and zinc When the Metal Detector senses a metallic object the meter reading changes and the detector might sound a tone The reaction depends on what metal is detected VOLUME DISCRIMINATION Turning on and Tuning the Metal Detector While holding the detector in a comfortable position rotate the VOLUME away from OFF to the desired sound level Set OPERATE BATT TEST to OPERATE to detect see Figure 9 TUNE fine tunes the balance between the detector s receiver Figure 9 and transmitter This provides consistent pointer and tone indications To set TUNE Rotate VOLUME to the 11 o clock position Set DISCRIMINATION to its midpoint see Figure 10 VOLUME DISCRIMINATION Hold the search coil about 1 foot from the ground Hold down the red button on the handle and slowly rotate TUNE left to mde uu right until the pointer on the viewmeter rests at or near 0 th
14. ne switch connection IC1 IC2 IC3 ICA defective Defective transistor Q1 Defective coil connections Defective coil L1 or L2 Search coil out of alignment Batteries voltage is too low Exposure to too high humidity internal corrosion Replace Replace Replace Replace Repair connections Replace Repair Replace Repair connection Check and replace IC Check and replace Check and replace Check and repair Replace search head Replace indicated components Page 12 Parts Diagram 43150 Page 13
15. ol or attachment to do the work of a larger industrial tool There are certain applications for which this tool was designed Do not modify this tool and do not use this tool for a purpose for which it was not intended 7 Stay alert Watch what you are doing use common sense Do not operate any tool when you are tired 43150 Page 2 Safety Warnings and Precautions continued 8 Check for damaged parts Before using any tool any part that appears damaged should be carefully checked to determine that it will operate properly and perform its intended function Check for alignment and binding of moving parts any broken parts or mounting fixtures and any other condition that may affect proper operation Any part that is damaged should be properly repaired or replaced by a qualified technician Do not use the tool if any switch does not turn On and Off properly 9 Replacement parts and accessories When servicing use only identical replacement parts Use of any other parts will void the warranty Only use accessories intended for use with this tool Approved accessories are available from Harbor Freight Tools 10 Do not operate tool if under the influence of alcohol or drugs Read warning labels on prescriptions to determine if your judgment or reflexes are impaired while taking drugs If there is any doubt do not operate the tool 11 Maintenance For your safety maintenance should be performed regularly by a qualified technician 12
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