Harbor Freight Tools LCD Automotive Multimeter with Tachometer Kit Product manual
Contents
1. Observe work area conditions Do not test voltages in damp or wet locations Don t expose to rain Keep work area clean and well lit Keep children away Children must never be allowed in the work area Stay alert Watch what you are doing use common sense Do not operate any meter when you are tired Do not operate Multimeter Tachometer 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 meter Due to the danger inherent in such work only a licensed electrician should work on high voltage or other potentially dangerous circuits Do not test voltage on circuits higher than 750 volts AC or 1000 volts DC This type of testing should only be done by a qualified electrician Do not test current on circuits higher than 10 A Store idle equipment When not in use meters must be stored in a dry location to decrease exposure to moisture Lock up meters and keep out of reach of children Dress properly Protective electrically nonconductive clothes and nonskid footwear are recommended when working Wear ANSI approved impact safety goggles Page 3 2l 22 23 24 25 26 27 28 29 30 Page 4 Only use accessories intended for use with this meter Avoid damaging Multimeter Tachometer Use only as specified in this manual Prior2. features a Diode Test and Continuity Test See the following sections for details Diode Test Range Resolution Accuracy 2000 1 0 5 20kQ n D00Ka 10009 08 5 Range __Description _ Test Condition 20MO 10kO 2 0 7 The approximate The forward forward voltage DC current is s Open Circuit Voltage Less than 2 8V of the diode approx 1mA e Overload Protection 250V DC AC RMS under test will the reversed be displayed DC voltage is 1 Connect the red test lead to the on the LCD approx 3V W QHzZ9 4 Jack and the black test lead to the COM Jack 1 Connect the red test lead to the l l QHZz9QZ Jack and the black test 2 Set the Function Range switch lead to the COM Jack The polarity to the desired Q range of the red test lead is positive 3 Connect the test leads to the 2 resistor to be measured and read l the value displayed on the LCD Set the Function Range switch to PP range 3 Connect the red test lead to the anode Note For resistance above 1MQ the o of the diode to be tested and the black meter may take a few seconds to stabilize fact lead tothe cathode of the diode reading This is normal for high resistance The approximate forward voltage drop measuring of the diode will be displayed on the Before measuring in circuit LCD If the connection is reversed resistance be sure the circuit under only figure 1 will be shown test has all power
3. pets to prevent distraction and injury 2 There must not be objects such as utility lines nearby that will present a hazard while working Page 5 General Operating Instructions Use the following instructions to measure and test using the Multimeter Tachometer Controls POWER Button Used to turn the power on and off Press the POWER Button to turn the power on Press the POWER Button again to turn the power off HOLD Button Used to freeze a reading on the LCD screen Press the HOLD button to lock the present reading on the LCD Press the HOLD button again to release the LCD reading Function Range Switch Used to select the desired function of the meter Rotate the dial to select the desired function Jack Sockets Used to connect the positive and negative test leads Insert the red and black test leads into two of the Jack sockets as instructed for the desired reading Transistor hFE Testing Socket Used when testing transistors Insert the three pins of the transistor into the socket to test and determine the current Temperature Testing Socket Used to measure temperature Insert one end of the thermocouple into the socket and touch the object to be measured with the other end to read the temperature Page 6 For technical questions please call 1 800 444 3353 LCD Power Hold Button 5 Button l Temperature Range Socket Switch Transistor hFE Testing i Socket Amp Jack i R
4. removed and all capacitors are fully discharged Page 10 For technical questions please call 1 800 444 3353 SKU 95670 Audible Continuity Test Range Description Test Condition If the resistance of the circuit under test Open circuit is less than voltage is 30Q the approx 3 V built in buzzer will sound 4 Connect the red lead to the W QHzZ9 4 Jack and the black test lead to the COM Jack 5 Set the Function Range switch to range Connect the test leads to the two terminals of the circuit to be tested If the resistance is less than about 30Q the built in buzzer will sound SKU 95670 For technical questions please call 1 800 444 3353 Page 11 Tachometer Measuring RPM 1 Connect the Clamp to a spark plug wire with the arrow on the Clamp pointing to the spark plug Position the Clamp as far away from the distributor and Spark the exhaust manifold as possible Plug Wire Clamp Multimeter Tachometer 2 Connect the black Lead of the clamp to the COM Jack of the Multimeter Tachometer and the red Lead to the VOHZ02 Jack Test Leads 3 Set the Function Range switch to the vehicle s number of cylinders 4 Read the value on the display The distance between the spark plug and the Clamp of the unit must be less than 4 10cm during the test Multiply the reading by 10 to get the actual RPM P cy sy ACYL scy 6CYL Note If no reading is
5. to testing resistance diodes or continuity disconnect all power to the circuit and discharge all high voltage capacitors Before use verify the Multimeter Tachometer s operation by measuring a known voltage Use the proper settings terminals techniques and range for the tests performed Always start with the range stated in the instructions Do not apply voltage to the Test Leads when the Multimeter Tachometer is in the Ohms testing setting Damage can occur to the Multimeter Tachometer Do not switch between testing modes with the Multimeter Tachometer connected to a circuit Never attempt to use the meter at a setting combination marked as blank on the scale Prior to testing capacitors resistance diodes or continuity disconnect all power to the circuit and discharge all high voltage capacitors Check fuse before testing current 31 J2 33 34 35 A For technical questions please call 1 800 444 3353 Use the proper settings terminals techniques and range for the tests performed Always start with the range stated in the instructions Have the Multimeter Tachometer calibrated by a qualified technician every year A Multimeter Tachometer that is not calibrated yearly will not yield accurate results 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 Heal
6. CENT E C eM 3 1 2 Digit LCD Multimeter with Tachometer Kit Item 95670 INSTRUCTIONS AND PRECAUTIONS Visit our website at http www harborfreight com AWARNING Read this material before using this product Failure to do so can result in serious injury SAVE THIS MANUAL When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 800 444 3353 as soon as possible Copyright 2008 by Harbor Freight Tools All rights reserved No portion of this document 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 document 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 3353 Email our technical support at tech harborfreight com Manual Revised 11h Specifications FEDIA One 9V battery Requirements F250mA L 250V LCD 3 5 digits to 1999 LIE 45 to 450 Hz Frequenc See individual test Accurac y operating sections 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 o
7. ad CAUTION Only test currents higher than 200mA for 15 seconds or less The meter must cool disconnected for 15 minutes between measurements of that kind SKU 95670 Measuring Frequency Range Resolution Accuracy 20kHz 1 5 5 e Overload Protection 250V DC AC RMS 1 Set the Function Range switch to the Hz range 2 Connect the black test lead to the COM Jack and the red test lead to the VQHzZ9 24 Jack 3 Connect the test leads to the source or load to be measured 4 Read the frequency value displayed on the LCD Measuring Dwell Angle Cylinder Range Resolution Accuracy 4CYL_ 0 90 _ 0 1 2 5 5 6CYL 0 60 _ e Overload Protection 250V DC AC RMS lt 10 sec 1 Connect the black test lead to the COM Jack and the red test lead to the VQHzZ9 24 Jack 2 Set the Function Range switch to the desired DWELL range according to the cylinders of the motor to be measured 3 Connect the black test lead to a grounded bare metal part of the vehicle s frame or the negative pole of the battery and the red test lead to the connecting pole for the low voltage of the distributor or the negative terminal of the firing coil 4 Start up the motor Read the dwell angle on the LCD SKU 95670 For technical questions please call 1 800 444 3353 Page 9 Measuring Resistance Note The 200 and 2K resistance modes offer additional
8. apply voltage to the Test Leads when they are connected to the COM and VOHz24 Jacks and the Multimeter Tachometer is in an Ohms testing setting Damage can occur to the Multimeter Tachometer or the fuse may blow Do not switch between testing modes with the Multimeter Tachometer connected to a circuit SKU 95670 For technical questions please call 1 800 444 3353 Note This unit is equipped with an automatic shut off feature to extend the life of the battery If the Function Range Switch has not been operated for 15 minutes the power turns off To turn the Meter back on rotate the Function Range Switch or press the Power Button Check that the power is on before each test measurement Installing Battery Before first use or when the Battery Low symbol appears on the LCD the battery needs to be replaced To replace the battery 1 Turn off the Power and disconnect Test Leads 2 Remove the rubber casing from the back of the unit 3 Unthread the two screws on the back of the Multimeter and remove the back cover 4 Install a 9V battery being careful to position the battery with the correct polarity 5 Replace the cover and secure with the screws 6 Replace the rubber casing Note Performance of this meter may vary depending on battery condition Work Piece and Work Area Set Up 1 Designate a work area that is clean and well lit The work area must not allow access by children or
9. ction Range L27520F 2 49 switch to hFE range Note Use type K thermocouple while measuring temperature 2 Determine whether the transistor to be tested is NPN or PNP and locate the E emitter B base and C collector leads Insert the leads into the proper holes of the hFE socket on the front panel 1 Insert the type K thermocouple to the temperature testing socket It will only fit one way 2 Set the Function Range switch to the C or F range 3 The display will show the approximate hFE value current gain at the test condition of base current 10uUA and Vce 3V 3 Connect the tip of the type K thermocouple to the object to be measured 4 Read the temperature value displayed on the LCD Page 14 For technical questions please call 1 800 444 3353 SKU 95670 Maintenance and Servicing Replacing the Fuse and procedures not specifically explained in this manual must be performed only by a qualified technician AWARNING TO PREVENT SERIOUS INJURY Disconnect the Test Leads from the meter before performing any inspection maintenance or cleaning procedures TO PREVENT SERIOUS INJURY FROM TOOL FAILURE Do not use damaged equipment If abnormal noise or vibration occurs have the problem corrected before further use 1 BEFORE EACH USE inspect the general condition of the tool Check for loose hardware misalignment or binding of parts cracked or broken parts damaged elect
10. ed General Jack VOHZ9 4 Red Milliamp Jack Common Red COM Jack Black Frequency Resistance Diode pg 9 and Continuity uz 2 gt pgs 9 11 Temperature pok 200 2k 20k ook o P a pg 14 Cm 2M p P ym DC 20m Q 200m Current pg 8 oomg q2 DC 10 9 920 Voltage BCYL Q200 P9 f 6cYL 1000 Dwell 5cYL 4750 Angle acyi XN w AC Voltage pg 11 3CYL7 q hFE pg 7 3cYL P 3 nurs SONL SENE Transistor Tachometer RPM pg 14 pg 12 13 SKU 95670 Measuring DC Voltage Measuring AC Voltage Range Resolution Accuracy 200mV 100uV 0 5 5 1mV Range Resolution Accuracy 200V 100mV 1 0 5 750V 1 2 5 Input Impedance approx 450kQ for all ranges Frequency 45Hz 450Hz Indication Average RMS of sine wav Overload Protection 1000V DC AC RMS 0 8 5 200V 100mV 1000V 1 0 5 e Input Impedance 1MQ for all ranges e Overload Protection 1000V DC AC RMS SKU 95670 For 200mV range 250VAC Connect the red test lead to the VOQHZ9Z Jack and the black _ Connect the red test lead to the W QHzZ9 4 Jack and the black test lead to the COM Jack test lead to the COM Jack 2 Set the Function Range switch to the desired V range If the voltage to be Set the Function Range switch to the measured is not known beforehand desired V range If the voltage to be set the switch to the highest range and measured is not known beforehand set then t
11. eter Tachometer before use In addition to a general inspection carefully check the following a Pay special attention to the insulation protecting the connectors b Check the leads for exposed metal damaged insulation and continuity c Replace damaged test lead immediately before use SKU 95670 SKU 95670 Do not use the Multimeter Tachometer if a The test lead is damaged in any way b The battery is low c Near any explosive gasses or fumes d Any abnormal operation is detected If in doubt about the condition of the meter have it serviced e The battery cover is open This meter should be powered only by a single correctly installed 9V battery Use caution when working near voltages above 30V RMS 42V peak or 60V DC Voltages this high present a risk of electric shock Disconnect the circuit s power before connecting the meter in series when measuring current Connect the common COM test lead first and disconnect last Hold the probes with fingers behind guards Avoid electrical shock Use extreme caution when working near uninsulated conductors or bus bars Prevent body contact with grounded surfaces such as pipes radiators ranges and cabinet enclosures when testing voltages Do not apply more than the rated voltage as marked on the meter between terminals or between any terminal and earth ground 20 For technical questions please call 1 800 444 3353
12. please call 1 800 444 3353 Page 15 90 Day Warranty Harbor Freight Tools Co makes every effort to assure that its products meet high quality 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 facilities 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 transportation 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 ret
13. r 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 INFORMATION In this manual on the labeling and all other information provided with this product This is the safety alert symbol It is A used to alert you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death A DANGER DANGER indicates a hazardous situation which if not avoided will result in death or serious injury AWARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury Page 2 For technical questions please call 1 800 444 3353 ACAUTION CAUTION used with the safety alert symbol indicates a hazardous situation which if not avoided could result in minor or moderate injury NOTICE NOTICE is used to address practices not related to personal injury CAUTION CAUTION without the safety alert symbol is used to address practices not related to personal injury General Safety Warnings WARNING Read all safety warnings and instructions Failure to follow the warnings and instructions may result in electric Shock fire and or serious injury Save all warnings and instructions for future reference 1 Electrical shock can cause death or injury NEVER TOUCH exposed conductors of electricity Inspect the Multim
14. received unhook the clamp turn it over and reconnect Cylinder Range 3 CYL 4 CYL 5 CYL 180 10 000 1x10RPM 2 5 5 6 CYL 8 CYL Page 12 For technical questions please call 1 800 444 3353 SKU 95670 RPM for Independent RPM for a 4 cylinder Cycling Ignition Grouping Ignition System 1 Set the Function Range 1 Set the Function Range Switch to 4 cyl TACH switch to 4 cyl TACH 2 Connect the black Lead of the 2 Connect the black Lead of the clamp to the COM Jack of the clamp to the COM Jack of the Multimeter Tachometer and the red Multimeter Tachometer and the red Lead to the VQHZzO Jack Lead to the VQHz04 Jack 3 If clamping to the V high voltage 3 If clamping to ignition line or Il multiply line coil wire between the coil and the display reading by 20 to obtain distributor the reading on the Display the actual RPM value of the engine is the actual RPM value of the engine 4 If clamping to any spark plug wire after the distributor multiply the displayed reading by the number of cylinders x 10 to obtain the RPM value SKU 95670 For technical questions please call 1 800 444 3353 Page 13 Measuring Temperature Transistor hFE Test Agnse Resolution Aequracy a Test Test eG 20 0 C 6 5 ange Current Voltage 750 C 0 400 C CE PNP gt 400 C gt 400 C 2 5 amp NPN O 1000 Ib 10uA Vce 3V A 4 32 F E T 32 EESAN a Set the Fun
15. rical wiring and any other condition that may affect its safe operation 2 AFTER USE wipe external surfaces of the tool with clean cloth 3 Store indoors out of reach of children 4 Dispose of unit according to governmental guidelines Replacing the Fuse 11 The fuse may blow if the unit is used incorrectly or if the reading is beyond the capacity of the meter To replace the fuse Turn off Power to the unit Connect the black Test Lead to the COM Jack of the Multimeter Tachometer and the red Test Lead to the VQHzO Jack Touch the probes of the Leads to each other to neutralize any residual current in the Multimeter Tachometer then disconnect the Test Leads from the unit Remove the rubber casing from the back of the unit Unthread the two screws on the back and remove the back cover Holes for Large Screws Unthread the six EE the smaller for Small Circuit i j Screws board Underside of Smaller Circuit Board Being careful to not strain the wire connections tilt the circuit board so you can access the Fuse Pull out the fuse and replace with a new Fuse of the same type and rating Replace the Circuit Board and secure with the six screws Put the four small screws in the correct locations then secure the two large screws Do not overtighten Replace the cover and secure with the screws Replace the rubber casing SKU 95670 For technical questions
16. th amp Safety Code 25249 5 et seq WARNING Handling the cords on this product will expose you to lead a chemical known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling California Health amp Safety Code 25249 5 et seq 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 95670 Operating Instructions A 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 AWARNING TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION ELECTRICAL SHOCK CAN CAUSE DEATH OR INJURY AVOID TOUCHING EXPOSED CONDUCTORS OF ELECTRICITY Disconnect the Test Leads from all live circuits before performing any inspection maintenance or cleaning procedures Do not use damaged equipment If abnormal noise or vibration occurs have the problem corrected before further use 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 Do not
17. urn it down range by range until the range switch to the highest range satisfactory resolution is obtained and then turn it down range by range until satisfactory resolution is obtained 3 Connect the test leads to the source or load to be measured Connect the test leads to the source or load to be measured 4 Read the voltage value Read the voltage value displayed on the LCD along with the polarity of the red test lead For technical questions please call 1 800 444 3353 displayed on the LCD Page 7 Measuring DC Current Range Resolution Accuracy 10uA LOA 4 1 8 3 200mA 100A 3 0 7 e Overload Protection F 250mA L 250V fused Range 10A unfused e Maximum Voltage Drop 200 mV Page 8 For technical questions please call 1 800 444 3353 Connect the black test lead to the COM Jack Connect the red test lead to the mA Jack for testing currents less than 200mA or connect the red test lead to the 10A Jack when measuring current between 200mA and 10A Set the Function Range switch to the desired A m range If the current to be measured is not known beforehand set the switch to the highest range and then turn it down range by range until satisfactory resolution is obtained Open the circuit in which the current is to be measured and connect the test leads in series with the circuit Read the current value displayed on the LCD along with the polarity of the red test le
18. urn repaired products 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 PO Box 6009 Camarillo CA 93011 800 444 3353 Record Product s Serial Number Here Note If product has no serial number record month and year of purchase instead Replacement parts are not available CENT E C eM 3491 Mission Oaks Blvd PO Box 6009 Camarillo CA 93011 800 444 3353
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