Harbor Freight Tools 7 Function Digital Multimeter with Backlight Product manual
Contents
1. Measurements AC Volt Selection Area Battery Measure AC conductors Backlight _ tase carrying up to 750 VAC Button ae 45 450 Hz Turn the Range DC Volt DC AMP Selector Switch to Selection Selection 750 ACV setting Area Area Always start with the highest range selection Section if the voltage is Area Pre ask unknown pases 2 Plug the red lead Transistor F into the VOMA hFE Jack Transistor Center Jack Plug a the black lead into a M Bott k Switch Swite be Regt v awite Volt Ohm e Muttiimeter Diode COM Jack mA Jack 3 Carefully touch the exposed Selection Area conductors with the tips of the probes to measure the voltage not amperes 4 Read measurement If the voltage is less than 200 volts set the Range Selector Switch to the lower range 5 When testing is complete remove Test Leads and store with multimeter DC Voltage Measurements Measure DC conductors carrying up to 1000 VDC 1 Turn the Range Selector Switch to 1000 DCV setting 2 Follow the directions above under AC Voltage Measurements only use the DC settings instead DC Current Measurements Measure DC conductors carrying up to 10 amperes 1 Turn the Range Selector Switch to the 10A position Always start with2. 13 15 16 Keep work area clean Cluttered areas invite injuries Avoid electrical shock Use extreme caution when using this tool near uninsulated conductors or bus bars Prevent body contact with grounded surfaces such as pipes radiators ranges and cabinet enclosures when testing voltages Avoid damaging meter Use only as specified in this manual Observe work area conditions Do not test voltages in damp or wet locations Don t expose to rain Keep work area well lit Keep children away Children must never be allowed in the work area Do not let them handle machines tools or extension cords Store idle equipment When not in use tools must be stored in a dry location to inhibit rust Always lock up tools and keep out of reach of children 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 Use eye protection Always wear ANSI approved impact safety goggles Do not overreach Keep proper footing and balance at all times Do not reach over or across electrical cables or frames Maintain tools with care Ensure multimeter has a fresh battery Inspect test leads periodically and if damaged have them repaired by an authorized technician Stay alert Watch what you are doing use common sense Do not operate any tool when yo
3. but must be supplied by the operator Warning This product contains or produces chemicals including lead known to the State of California to cause cancer and birth defects or other reproductive harm California Health amp Safety Code 25249 5 et seq Unpacking When unpacking make sure the following parts are included Digital Multimeter and black and red Test Leads If any parts are missing or broken please call Harbor Freight Tools at the number on the cover of this manual If any part of the machine is missing or broken please call Harbor Freight Tools at the number on the front cover as soon as possible Operation WARNING ELECTRICAL SHOCK CAN CAUSE DEATH OR e O N gt INJURY AVOID TOUCHING EXPOSED CONDUCTORS OF ELECTRICITY Additional Multimeter Precautions Do not test voltage on AC circuits higher than 750 volts Do not test voltage on DC circuits higher than 1000 volts Do not test current on circuits higher than 10 amps Be careful not to apply voltage to the Test Leads when they are connected to the COM Bottom and VOmA Center Jacks and the Multimeter is in an Ohms testing setting Damage can occur to the multimeter or the fuse may blow Do not switch between testing modes with the multimeter connected to a circuit SKU 92020 For technical questions please call 1 888 866 5797 Page 4 AC Voltage Control Layout
4. the highest range if the amperage is unknown 2 Plug the red lead into the 10A Top Jack Plug the black lead into the COM Bottom Jack Switch the Multimeter ON 3 Carefully touch the exposed conductors with the tips of the probes to measure the amperage Note Amperage is always tested in series with the circuit under test 4 Read measurement REV 04k SKU 92020 For technical questions please call 1 888 866 5797 Page 5 5 If the reading is less than 2 AMPs switch the red lead to the VOmA Center Jack and set the Range Selector Switch to the 200 mA setting When testing is complete remove Test Leads and store with multimeter Resistance Measurements Measure circuit resistance up to 2000K Ohms WARNING NEVER measure resistance on circuit with voltage running through it 1 2 NOTE Turn the Range Selector Switch to the 200 Q position Plug the red Test Lead into the VOmA Center Jack Plug the black Test Lead into the Com Bottom Jack Switch the Multimeter ON Short the Test Leads together The meter should read 0 Ohms Touch the exposed conductors with the tips of the Test Leads Read measurement If the reading is 1 set the Range Selector Switch to the next higher Ohm Q position Transistor hFE Measurements Test transistors to ensure proper function Turn the Range Selector Switch to the hFE position Switch the Multimeter ON Insert the transistor pins into the appropriate hFE jack NPN
5. 00mA 1 2 10D 10A 3 2D DC Voltage Ranges 200mV 2000mV 20 200 1000V Accuracy 200mV 0 5 1D 2000mV 200V 1 0 1D 1000V 1 0 2D AC Voltage Ranges 200 750V Accuracy 45 450 Hz 1 5 10D Resistance Ranges 200 2000 20K 200K 2000K Ohm Accuracy 200 200K Ohm 1 0 2D 2000K Ohm 1 2 2D Sampling Rate 2 5 times Second Overload Protection Fast Acting 500mA 250V Fuse Operating Temperature Range 32 104 F Display 1 high 3 digit LCD Battery One 9 V included Weight 45 Ib Features 32 Test Leads Transistor NPN and PNP Testing Function Battery Testing Function and Automatic Polarity and Zero Adjust Save This Manual You will need the manual for the safety warnings and precautions and operating and maintenance procedures 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 tester 1 Avoid working alone If an accident happens an assistant can bring help Warnings continued on page 3 SKU 92020 For technical questions please call 1 888 866 5797 Page 2 10 11 12
6. Owner s Manual amp Safety Instructions 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 i i N C es A ITEM 92020 1 FUNCTION DIGITAL MULTIMETER with backlight IGITAL DIGTIMETER isit our website at http www harborfreight com ichnical support at productsupport harborfreight com When unpacking make sure that the product is intact and undamaged If any parts are missing or broken AWARNING please call 1 888 866 5797 as soon as possible Copyright 2004 by Harbor Freight Tools All rights reserved P j No portion of this manual or any artwork contained herein may be reproduced in Read this material before using this product any shape or form without the express written consent of Harbor Freight Tools Failure to do so can result in serious injury Diagrams within this manual may not be drawn proportionally Due to continuing SAVE THIS MANUAL improvements actual product may differ slightly from the product described herein Tools required for assembly and service may not be included Frequency Specifications 45 450 Hz DC Amps Ranges 200mA 2000mA 20mA 200mA 10A Accuracy 200mA 2
7. age 8
8. ities criminal activity improper installation normal wear and tear or to lack of maintenance We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our product Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with trans portation charges prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If our inspection verifies the defect we will either repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement We will return repaired prod ucts at our expense but if we determine there is no defect or that the defect resulted from causes not within the scope of our warranty then you must bear the cost of returning the product This warranty gives you specific legal rights and you may also have other rights which vary from state to state 3491 Mission Oaks Blvd e PO Box 6009 Camarillo CA 93011 1 888 866 5797 REV 11h SKU 92020 For technical questions please call 1 888 866 5797 P
9. ndard 9V 6LR61 battery 25 mA For a 1 5 V AA LR6 battery 4 mA Backlight Illuminate the display to make it easier to read Switch the Multimeter ON Press the Backlight button The backlight will turn off automatically Maintenance Wipe unit with a slightly damp cloth using a light detergent Do not use solvents or abrasives Remove battery if not in use for long periods Store unit in a dry location Other than the battery and fuse there are no replaceable parts on this unit Repairs should be done by a qualified technician Battery Fuse Replacement To replace the battery or fuse Remove the Test Leads from the multimeter Turn the unit over Remove both screws using a Philips screwdriver Remove back cover Pull battery fuse out of unit and replace with the same 9V battery or 5 A 250V fuse Replace cover and retighten screws NOTE No replacement parts are available for this tool REV 05c 07g SKU 92020 For technical questions please call 1 888 866 5797 Page 7 Limited 90 Day Warranty Harbor Freight Tools Co makes every effort to assure that its products meet high qual ity and durability standards and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase This warranty does not apply to damage due directly or indirectly to misuse abuse negligence or accidents repairs or alterations outside our facil
10. or PNP according to the EBC Emitter Base Collector sequence The meter will show the approximate hFE value Diode Measurement Test the voltage drop in diodes Turn the Range Selector Switch to the Diode PF position Plug the red Test Lead into the VOmA Center Jack Plug the black Test Lead into the Com Bottom Jack Switch the Multimeter ON Connect red probe to the anode of the diode and the black to the cathode The approximate forward voltage drop of the diode will be displayed in mV If the connection is reversed only 1 will be shown Battery Charge Measurement Test the amount of charge left in batteries This setting is for testing the charge of small 9V or 1 5V batteries only Never use this setting to test automotive or lead acid batteries The high current could cause damage to the meter and or cause severe personal injury Use the appropriate DC Voltage setting to test the open current voltage of such batteries instead Turn the Range Selector Switch to the Battery CI F position SKU 92020 For technical questions please call 1 888 866 5797 Page 6 H9 mep Plug the red Test Lead into the VOmA Center Jack Plug the black Test Lead into the Com Bottom Jack Switch the Multimeter ON Connect the red probe to the positive terminal of the battery and the black to the negative terminal The battery amperage under a load of 370 mQ will be displayed to a resolution of 1mA Normal amperage For a sta
11. u are tired 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 any broken parts 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 operate properly 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 Do not operate tool if under the influence of alcohol or drugs Read SKU 92020 For technical questions please call 1 888 866 5797 Page 3 17 Note 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 We recommend that only a licensed electrician work on high voltage or other potentially dangerous circuits Performance of this tool may vary depending on condition of internal battery 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
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