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Related Manuals for isweek M9803R
Summary of Contents for isweek M9803R
- Page 1 M9803R BenchMultimeter UsersManual...
- Page 2 Introduction This manual contains information and warnings, which must be followed to ensure safe operation and retainthemeterinsafecondition. WARNING READ“SAFETY INFORMATION”BEFORE USING THE BENCH MULTIMETER This multimeter is a portability 4000-count instrument that is designed for use in the laboratory, field servicing, and at home, and any circumstance. This multimeter feature compact design with rounded corners for easy handling and has a rugged case in shock resistant and fire-retardant. And electronic overloadprotectionforallfunctionsandranges....
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Page 3: Table Of Contents
TableofContent CHAPTER ..................Ⅳ SafetyPrecautions ..................Safety Information Ⅴ ....................AQuickTour .................... SymbolExplanation 1-1 ....................InstrumentLayout 1-2 ..................UsingtheRotarySwitch 1-5 .................... UsingtheHardkeys 1-6 ....................BuzzerOutput 1-10 ..................Low-BatteryIndication 1-10 ................MakingMeasurements 2-1 ....................... Introduction 2-1 Ⅱ... - Page 4 ................... MeasuringDCVolts 2-2 ................... MeasuringACVolts 2-4 ................MeasuringACandDCAmps 2-6 ..............MeasuringACandDCMilliamps 2-8 ................... MeasuringCapacitance 2-10 ............... MeasuringFrequencyandAdaptive 2-12 ....................TestingDiodes 2-14 ............MeasuringResistanceandContinuity 2-16 ..................... Specifications 3-1 ..................GeneralSpecifications 3-1 .................. ResolutionandAccuracy 3-3 ....................Maintenance 4-1 ....................... Introduction 4-1 ..................ReplacingtheBattery 4-1 ..................
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Page 5: SafetyPrecautions
Safety Precautions Injuryordeathcanoccurevenwithlowvoltagesandlowcurrent.Itisextremelyimportantthatyouread these safety information before using your multimeter. Follow all safety practices and proper operating proceduresforequipmentbeingtested. 1. Exercise extreme caution when: Measuring voltageabove20volts,measuringcurrentgreaterthat10 mA,measuringACpower line with inductive loads, measuringACpowerlineduringelectricalstorms. 2. Alwaysinspectyourmultimeter,testleadsandaccessoriesforsignofdamageorabnormalitybefore everyuse.Ifanyabnormalconditions exist (i.e., brokenordamagedtestleads,crackedcase,displaynot reading,etc.),donotattempttotakemeasurements. 3. Never ground yourself when taking electrical measurements. Do not touch exposed metal pipes, outlets,fixtures,etc.,whichmight beatgroundpotential.Keepyourbodyisolatedfromgroundbyusing dryclothing,rubbershoes,rubbermats,oranyapprovedinsulatingmaterial.... -
Page 6: Safety Information
7. Donotoperatethismultimete r inanexplosiveatmosphere(i.e.,in the presence of flammable gases orfumes,vaporordust.) 8. Measuringvoltagethat exceeds the limitsofthemultimeter may damage the meter and exposethe operatortoashockhazard.Alwaysrecognizethemetervoltagelimitsas statedonthefrontofthemeter. 9. Neverapplymorethan500VDCbetweentheCOMjackandearthground. 10.Nevertouchavoltagesourcewhenthetestleadsarepluggedintoacurrentjack. 11. When testing for the presence of voltage or current, make sure the voltage or current ranges are functioning correctly. Take a reading of a known voltage or current before assuming a zero reading indicatesnocurrentorvoltage. 12.Donotattemptcalibrationorserviceunlesstrainedandanotherperson capableofrenderingfirstaid... -
Page 7: AQuickTour
Chapter1 AQuickTour SymbolExplanation Caution Caution,Possibility of electric shock Earth( ground )TERMINAL AC - Alternatingcurrent DC -Directcurrent Audiblecontinuity Equipment protectedthroughout by Double Insulation ( Protection Class Ⅱ)... -
Page 8: InstrumentLayout
InstrumentLayout Figure1-1. BenchMultimeterFeatures(Forward) - Page 9 Figure1-2. BenchMultimeterFeatures(Backward)...
- Page 10 Hz Volt,Ohms,Diode,Frequency InputTerminal 1. V Ω This is the positive input terminal for all function except current measurements. Connection is made to usingtheRedtestlead. 2. COM Common Terminal Thisisthenegative(ground)inputterminalforallmeasurementmodes.Connectionismadetousingthe Blacktestlead. 3. mA MilliampInputTerminal Thisisthepositiveinputterminalforcurrentmeasurement(ACor DC) up to 400 mA. Connection is made tousingtheRedtestlead. 4.
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Page 11: UsingTheRotarySwitch
TheLCDDisplay 7. TheLCDdisplayindicatesthemeasuredvalueofasignal,functionmode,andannunciator. TheBattery Cover 8. SupplyPowerInletwithFuse 9. ThisswitchisusedtoturnACPoweronoroff.WhentheACPowerison,theDCPowerisautoturned off. WARNING Toavoiduserforinjury and the multimeter for damage, the voltge valueofAC power must be examined with same the power requirements of multimeter beforeconnectpowercordtolivepowersourceandtheswitchisturnedon. Thepowerswitch 10. 11. RS232CSocket( tobuybyuseroptional) UsingtheRotarySwitch Turnthemultimeteronbyrotatingtherotaryswitchtoanyfunction.... - Page 12 UsingtheButtons TheButtonsarepushtypeswitch.Thefunctionsareasfollows: 1 . BACKLIGHTButton You can turn the backlight on or off by press button. When the battery is turned, the backlight turnedonovereithersecond,thebacklightisautoturnoff. 2 . FUNCTIONSELECTORButton In the range of Measuring Resistance and Continuity, The Resistance or Continuity measurement is changedalternativelybyeachpress button.
- Page 13 IntheDateHoldmode,the" "annunciatorisdisp layedandthelastreadingisheldonthedisplay,the beeperemitsatone. Pressing buttonwhenmultimeterisintheDateHoldmodecausesittoexitDateHoldandenterthe Min/MaxRecordingHoldmode. IntheMin/MaxRecordingHoldmode,press b uttonstoptherecordingof readings,press againtoresumerecording. However, the multimeter is operating even though in Date Hold status, therefore, the buzzer sound is comeoutwhenoccurthe over rangeorcontinuitymodes.Andtherangeisalso changedifitisinauto range. 4 .
- Page 14 In the Min/Max Recording Hold mode, press button to stop the recording of readings, press againtorestartrecording.Ifrecordingisstopped, theminimum,maximum,orpresentvaluesandanalog display are frozen. In the Min/Max Recording Ho ld mode, when a new minimum value is exceed the actualminimumreadingsoranewmaximumvalueisoverload,theminimumormaximumvaluewillheld onthedisplay,buttheanalogdisplaycontinuestobeactive. Incaseofintheauto-range,themodeisheldtojustbeforerange. 6 . Relative Display : RELButton Press buttontoentertheRelativeDisplaymode,the"...
- Page 15 7 . RANGEButton Press buttontoselecttheManualRangemodeandturnoffthe"" AUTO annunciator. button is pressed, the range (and the input range In the Manual Range mode, each time the annunciator)increments,andanewvalueisdisplayed. ToexitTheManualRangemodeandreturntoautoranging,pressandholddown buttonoverone second.The"" AUTO annunciator turnsbackon. TheDC V, AC V, Resistance and Capacitancemeasurementarealways first set to the autorange. Thefrequencymeasurementisalwayssettotheautorange. ...
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Page 16: BuzzerOutput
10. RS232CButton(Thefunctionofcommunicationisoptionalbyuser.) Press buttontoenterthecommunication.YouwillfindthattheRS232Csignbeitlitonthedisplay. Fixedonesideofcabletothemeterandconnectthe9pin?sterminalof cable to communicationport1or port2ofpersonalcomputer. Executethesoftwaretotakethedataforyounecessary. BuzzerOutput 2kHzbuzzersoundisoutputinfollowingcases: 1. Whenoperatethekey. 2. Whenoccurtheover-range.Except the measurement mode of Resistance(Ω),Frequency( Hz ), Continuity( )andDiode( 3. Whenthecontinuitymeasurementresultislessthan40Ω. 4. Whentherelativemodeisreleased. 5. When the mode is changed from manual to autor ange by operating the . Please refer the timingchartforthetiming. LowBatteryIndication... -
Page 17: MakingMeasurements
Chapter2 MakingMeasurements Introduction WARNING Toavoiduserforinjury and the multimeter for damage, the voltge valueofAC power must be examined with same the power requirements of multimeter beforeconnectpowercordtolivepowersourceandtheswitchisturnedon. Before making any measurements always examine the multimeter and accessories used with the multimeterfordamage,contamination(excessivedirt,grease,ect.) and defects.Examinethetestleads forcrackedorfrayedinsulationandmakesuretheleadplugsfitsnuglyintothemultimeterjacks.Ifany abnormalexistdonotattempttomakeanymeasurements.... -
Page 18: MeasuringDcVolts
MeasuringDCVolts Figure2-1. DCVoltsMeasurements... - Page 19 WARNING To avoid possible electric shock, multimeter damage and/or equipment damage,donotattempt to takeanyvoltagemeasurementsif the voltageis above 1000V DC / 750V AC RMS. 1000V DC / 750V AC RMS are the maximumvoltagesthat this multimeterisdesignedtomeasure. ① . TurntheSelectorto VoltsDC. ② . Connecttheleadsasshown. ③...
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Page 20: MeasuringAcVolts
MeasuringACVolts Figure2-2. ACVoltsMeasurements... - Page 21 WARNING To avoid possible electric shock, multimeter damage and/or equipment damage,donotattempt to takeanyvoltagemeasurementsif the voltageis above 1000V DC / 750V AC RMS. 1000V DC / 750V AC RMS are the maximumvoltagesthat this multimeterisdesignedtomeasure. ① . TurntheSelectorto VoltsAC. ② . Connecttheleadsasshown. ③...
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Page 22: MeasuringAcAndDcAmps
MeasuringDCandACAmps Figure2-3. AmpsMeasurements... - Page 23 WARNING Donotattempttomeasurecurrentsinhighenergycircuits.Usea current clamp for measurement needs >10A. The 10A input terminalisprotectedbyaF15A/250Vfastblowceramicfuse. ① . TurntheSelectorto DC and AC Amps. ② . Connecttheleadsasshown. ③ . isnotavailableinDCandACAmps;allotherbuttonscanbeused. TheDCorACAmpsmeasurementischangedalternativelybyeachpressthebutton . TheDCandACAmpsMeasurementisasfollows: 1. InserttheblackandredtestleadsintotheCOM and A input terminals respectively. 2. Turnoffordisconnectthecirc uittobemeasuredfromallpowersources,connectthemultimeterin serieswiththeconductorinwhichthecurrenttobemeasuredflows. 3. Turnonpowertothecircuitundertest.Notethereading,...
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Page 24: MeasuringAcAndDcMilliamps
MeasuringDCandACMilliamps Figure2-4. MilliampsMeasurements... - Page 25 WARNING Do not attempt to measure currents in high energy circuits. The mA inputterminalisprotectedby aF500mA/250Vfastblow fuse. ① . TurntheSelectorto DC and AC Milliamps. ② . Connecttheleadsasshown. ③ . isnotavailableinDCandACMilliamps;allotherbuttonscanbeused. TheDCorACMilliampsmeasurementischangedalternativelybyeachpressthebutton . TheDCandACMilliampsMeasurementisasfollows: 1. InserttheblackandredtestleadsintotheCOM and mA input terminals respectively.
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Page 26: MeasuringFrequencyAndAdaptive
MeasuringFrequencyandAdaptive Figure2-5. MeasurementFrequency and Adaptive(ADP) 2-10... - Page 27 ① . TurntheSelectorto Frequency andAdaptive Measurement. ② . Connecttheleadsasshown. ③ . isnotavailableintheFrequencyandAdaptiveMeasurement;allotherbuttonscanbeused. TheFrequencyandAdaptiveMeasurementarechangedalternativelybyeachpressthebutton . TheFrequencyMeasurementisasfollows: 1. InserttheblackandredtestleadsintotheCOM and VΩ Hz input terminals respectively. 2. In the Frequency Test, it is not necessary to know the range, as the multimeter will automatically rangeupordowntodisplaythebestresolution.Manualrangeisnotavailable. 3. Determinethattheamplitudelevelofthesignaltobemeasuredisnotgreaterthantheinputvoltage limit(250VDC/ACrms).Thesignalamplitudemust alsobegreater than thesensitivitylevel....
- Page 28 MeasuringCapacitance Figure2-6. CapacitanceMeasurements 2-12...
- Page 29 WARNING Turnoffpowertothedeviceundertestanddischargeallcapacitors. ① . TurntheSelectorto Capacitance. ② . Connecttheleadsasshown:Insert theblackandredtestleadsintotheCOM and VΩ Hz input terminalsrespectively. ③ . is notavailableinTheCapacitance;allotherbuttonscanbeused. Themeasuringcapacitanceisasfollows: 1. Turnoffpowertothedeviceundertestanddischargeallcapacitors. 2. Dischargeallvoltagefromthecapacitorbeforemeasuringitscapacitancevalue. 3. Setthecapacitancerangethatgivesthemostaccuratemeasurement reading ortoselectautorange. 4. Connect the alligator clips to capacitor leads or insert leads of the capacitor into multimeter measuringsocket.Alwaysobservepolaritymakingswhenmeasuringpobrizedcapacitor. 5. Read capacitance value directly from display.
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Page 30: TestingDiodes
TestingDiodes Figure2-7. DiodeTests 2-14... - Page 31 WARNING MeasurementsmustonlybemadewiththecircuitpowerOFF. ① . TurntheSelectorto Diode. ② . Connecttheleadsasshown:Insert the black and red test leads intotheCOM andVΩ Hz input terminalsrespectively. ③ . and are notavailable intheDiodetest;allotherbuttonscanbeused. ThediodeTestisasfollows: 1. Setthe( )positionbyturningtherotaryswitch. 1. InserttheblackandredtestleadsintotheCOM and VΩ Hz input terminals respectively. 2. Theredleadshouldbeconnectedtotheanodeandtheblackleadtothecathodeofthediode. 3. Thetypicalvoltagedropshouldbeabout0.6Vf o rsilicondiodeor0.3Vforgermaniumdiode. ...
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Page 32: MeasuringResistanceAndContinuity
MeasuringResistanceandContinuity Figure2-8. ResistanceandContinuityMeasurements 2-16... - Page 33 ① . TurntheSelectorto ResistanceandContinuityMeasurement. ② . Connecttheleadsasshown. ③ . isnotavailableinthecontinuitytest;allotherbuttons can be used. TheResistanceorContinuitymeasurementischangedalternativelybyeachpressthebutton . TheResistanceMeasurementisasfollows: 1. SelecttheResistance MeasurementbyPressingthe . 2. InserttheblackandredtestleadsintotheCOM and VΩ Hz input terminals respectively. 3. Selectthedesiredohms(Ω)rangeortosetauto-range.Connecttheblackandredtestprobetipsto thecircuitordeviceunder test, makingsureitisde-energizedfirst.
- Page 34 7. Afterallmeasurementsarecompleted,disconnectthetestleadsfromthecircuitandmultimeterinput terminals. TheContinuity( )Measurementisasfollows: 1. SelecttheContinuityMeasuremen tbyPressing the button 2. InserttheblackandredtestleadsintotheCOM and VΩ Hz input terminals respectively. 3. Connect the black and red test probe tips to t he circuit or device under test, making sure it is de-energized first.
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Page 35: Specifications
Chapter3 Specifications GeneralSpecifications Maximumvoltagebetweenterminalsandearthground: CAT.Ⅱ 1000VDCor750VACRMS(Sine) Display: 33/4digit(4000count)digital indi c ation.FrequencyRange:9999countsMax. 42segmentanalogbargraph Fullannunciates,automaticpolarityindication Measuringrate: Digit 2 times per second Analogbargraph20timessecond Capacitance1timepersecond Overrangeindications: MSD (Most SignificationDigit)Blinks Low Battery Indication: The“ ”mark is displayed when the battery load voltage drops below accurateoperatinglevel. TemperatureCoefficient: 0.15 ×... - Page 36 Temperature: Operating5 ℃ to 35 ℃ Storage-10 ℃ to60 ℃ RelativeHumidity: 20% to 75% RH(5 ℃ to 35 ℃ Backlight: LED Lumination Safety: Designed to IEC 1010-1specifications Power Requirements: AC90Vto132V,50/60Hz,<10VAminorAC198V to 264V, 50/60 Hz, <10VAmin (tobuybyuseroptional) NEDA16046F22006PtypeonepieceorIECLR6AM3AA1.5V × 6piece. Size: 238mm(W) ×...
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Page 37: ResolutionAndAccuracy
ResolutionandAccuracy DCVolts(mVDC) Range resolution Accuracy(%rdg+digits) ±(0.3%rdg+5d) 400mV 0.1mV ±(0.3%rdg+2d) 1mV ±(0.3%rdg+2d) 40V 10mV ±(0.3%rdg+2d) 400V 100mV ±(0.3%rdg+2d) 1000V InputImpedance:10MΩ, <100PF OverloadProtection:1000VDCor750VACRMS ACVolts(truerms,ac-coupled) Range resolution Accuracy(%rdg+digits) 1mV ±(0.8%rdg+5d) 40V 10mV 50Hzto60Hz ±(1.2%rdg+5d) 400V 100mV 45Hzto1kHz 750V nputImpedance:10MΩ, <100PF OverloadProtection:1000VDCor750VACRMS ACcoupledTrueRMSresponding... - Page 38 DCCurrent Range resolution Accuracy(%rdg+digits) ±(0.8%rdg+5d) 4mA 1μA ±(0.8%rdg+5d) 40mA 10μA ±(0.8%rdg+5d) 400mA 100μA ±(1.5%rdg+10d) 10A 10mA (20Afor30seconds) InputProtection:F500mA/250Vfusefor m Ainput;F15A/250VfuseforAinput Burdenvoltage:600mVmax.formAinput;900mVmax.forAinput ACCurrent Range resolution Accuracy(%rdg+digits) ±(1.5%rdg+5d) 4mA 1μA 45Hzto400Hz ±(1.5%rdg+5d) 40mA 10μA 45Hzto400Hz ±(1.5%rdg+5d) 400mA 100μA 45Hzto400Hz ±(2%rdg+10d) 10A 10mA 45Hzto400Hz (20Afor30seconds) InputProtection:F500mA/250Vfusefor m Ainput;F15A/250VfuseforAinput...
- Page 39 Resistance Range resolution Accuracy(%rdg+digits) ±(0.5%rdg+5d) 400Ω 0.1Ω 1 Ω ±(0.5%rdg+3d) 4kΩ ±(0.5%rdg+3d) 40kΩ 10Ω ±(0.5%rdg+3d) 400kΩ 100Ω ±(1%rdg+5d) 4MΩ 1 kΩ ±(1.5%rdg+10d) 40MΩ 10kΩ OpencircuitVoltage:0.45V Inputprotection:250VRMS ContinuityTest Continuitythreshold:Approx.40Ω Continuitythreshold:2kHztonebuzzer Inputprotection:250VRMS DiodeTest Testcurrent:0.6mA Opencircuitvoltage:Approx.3.0V Inputprotection:250VRMS...
- Page 40 Capacitance Accuracy(% rdg +digits) Range resolution ±(2%rdg+40d) 4nF 1pF inrelativemode ±(2%rdg+5d) 40nF 10pF inrelativemode ±(2%rdg+5d) 400nF 100pF inrelativemode ±(2%rdg+5d) 4μF 1nF ±(2%rdg+5d) 20μF ≤ 40μF 10nF ±(5%rdg+5d) at > 20μF Inputprotection:250VRMS FrequencyCounter Ranges:100Hz,1kHz,10kHz,100k Hz,600kHz Resolution:0.01Hzinthe100Hzrange Accuracy: ±(0.1%+4d) Sensitivity:100mVrmsfor1Hzto20kHz,500mVrmsfor20kHzto600kHz Inputprotection:250VRMS AdaptedRange...
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Page 41: Maintenance
Chapter4 Maintenance Introduction Repairsorservicingnotcoveredinthismanualshouldonlybeperformedbyqualifiedpersonnel. ReplacingtheBattery WARNING To avoid electrical shock, Disconnect power leads from live powersource,andthetestleadsandanyinputsignalsbefore replacingthebattery.Replaceonly withsametype of battery. Whenthemultimeterdisplaysthe"" mark,thebatterymustbereplacedtomaintain proper operation. Usethefollowingproceduretoreplacingthebattery: 1. Disconnect test leads from any li ve source, turn the rotary switch to off, and remove the test leads fromtheinputterminals.... -
Page 42: ReplacingTheFuse
2. Removescrewsonthebatterycoverandopenthecase. 3. Removetheexhaustedbatteryand replacewithanewequivalent9voltgebattery. 4. Twotypesofbatteriesareusedin the bench multimeter: one of is a NEDA 1604 6F22006Ptypeone pieceorequivalent9voltgebattery;otherofisIECLR6AM3AA1.5V × 6piece. 5. Neverusethebenchmultimeterunlessthebatterycoverisinplaceandfastenedfully. ReplacingtheFuse WARNING To avoid electrical shock, disconnect the test leads and any input signals before replacing the fuses. Replace only with same type of fuses. The A inputterminalisprotectedby aF15A/250Vfastblow ceramicfuse.ThemA inputterminalisprotectedby aF500mA/250Vfastblow fuse. -
Page 43: ReplacingThePowerFuse
4. Remove the blown fuse. replace with fuse of t he same size and rating. Make sure the new fuse is centeredinthefuseholder. 5. Replacetheblownfusewithsameratings. 6. The A inputterminalisprotectedbyaF20A/250Vfastblow ceramic fuse,Φ6 × 32mm.ThemA input terminalisprotectedbyaF500mA/250Vfastblowfuse,Φ5 × 20mm. 7. Fuserarelyneedreplacementandblowalmost alwaysasaresultoftheoperator?serror. 8. Neverusethebenchmultimeterunlessh t efusecoverisinplaceandfastenedfully. ReplacingthePowerFuse WARNING... -
Page 44: OtherNote
3. Replace the power fuse from the supply power In let with fuse. Replace the blown fuse with same ratings. 4. Thepowerfuse:100mA/250V,Fast, Φ5 × 20mm. OtherNote 1. Donotuseabrasivesorsolventsonthebenchmultimeter,useadampclothmilddetergentonly. 2. If any faults or abnormalities are observed, t he bench instrument can notbe used any more and it hastobecheckedout....
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