Isweek M9803R Manuel utilisateur

BenchMultimeter

UsersManual

M9803R

Introduction

Thismanualcontainsinformationandwarnings, whichmustbefollowedtoensuresafeoperationand

retainthemeterinsafecondition.

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

overloadprotectionforallfunctionsandranges.

UnpackingandInspection

UponremovingyournewBenchMultimeterfromitspacking,youshouldhavethefollowingitems:

1. BenchMultimeter

2.  TestLeadsset(oneblack,onered)

3. Carryingstrap

4. PowerCord

5. InstructionManual

6. RS232CCable(tobuybyuseroptional)

Ifanyoftheaboveitemsaremissingorarereceivedinadamagedcondition, pleasecontactthe

distributorfromwhom you purchased the unit.

Ⅰ

TableofContent

CHAPTER

SafetyPrecautions ........................................................................................

Ⅳ

Safety Information Ⅴ

1. AQuickTour 1-1

SymbolExplanation 1-1

InstrumentLayout 1-2

UsingtheRotarySwitch 1-5

UsingtheHardkeys 1-6

BuzzerOutput 1-10

Low-BatteryIndication 1-10

2. MakingMeasurements 2-1

Introduction 2-1

Ⅱ

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MeasuringDCVolts 2-2

MeasuringACVolts 2-4

MeasuringACandDCAmps 2-6

MeasuringACandDCMilliamps 2-8

MeasuringCapacitance 2-10

MeasuringFrequencyandAdaptive 2-12

TestingDiodes 2-14

MeasuringResistanceandContinuity 2-16

3. Specifications 3-1

GeneralSpecifications 3-1

ResolutionandAccuracy 3-3

4. Maintenance 4-1

Introduction 4-1

ReplacingtheBattery 4-1

ReplacingtheFuse 4-2

ReplacingthePowerFuse 4-3

OtherNote 4-4

Ⅲ

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Safety Precautions

Injuryordeathcanoccurevenwithlowvoltagesandlowcurrent.Itisextremelyimportantthatyouread

thesesafetyinformationbeforeusingyourmultimeter. Followallsafetypracticesandproperoperating

proceduresforequipmentbeingtested.

1.  Exercise extreme caution when: Measuring voltageabove20volts,measuringcurrentgreaterthat10

mA,measuringACpower line with inductive loads, measuringACpowerlineduringelectricalstorms.

2.  Alwaysinspectyourmultimeter,testleadsandaccessoriesforsignofdamageorabnormalitybefore

everyuse.Ifanyabnormalconditions exist (i.e., brokenordamagedtestleads,crackedcase,displaynot

reading,etc.),donotattempttotakemeasurements.

3. Nevergroundyourselfwhentakingelectricalmeasurements. Donottouchexposedmetalpipes,

outlets,fixtures,etc.,whichmightbeatgroundpotential.Keepyourbodyisolatedfromgroundbyusing

dryclothing,rubbershoes,rubbermats,oranyapprovedinsulatingmaterial.

4. Nevertouchexposedwiring, connections, testprobetips, orany live circuit conductorswhen

attemptingtomakemeasurements.

5. Neverreplacetheprotectivefuseinsidethemu ltimeterwithafuse otherthanthespecifiedor

approvedequalfuse. Replaceonlywithsame type of fuses. To avoidelectricalshock,disconnectthetest

leadsandanyinputsignalsbeforereplacingthefuses.

6. Replaceonlywithsametypeofbattery.Toavoi delectricalshock,Disconnectpowercordfromlive

powersource,andthetestleadsandanyinputsignalsbeforereplacingthebattery. 

Ⅳ

8. Measuringvoltagethat exceeds the limitsofthemultimeter may damage the meter and exposethe

operatortoashockhazard.Alwaysrecognizethemetervoltagelimitsas statedonthefrontofthemeter.

9.  Neverapplymorethan500VDCbetweentheCOMjackandearthground.

10.Nevertouchavoltagesourcewhenthetestleadsarepluggedintoacurrentjack.

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

indicatesnocurrentorvoltage.

12.Donotattemptcalibrationorserviceunlesstrainedandanotherperson capableofrenderingfirstaid

andresuscitationispresent.

13.Remember:ThinkSafety,ActSafely.

Safety Information

ThemultimetercomplieswithProtectionClassⅡ, OvervoltageCATⅡ of theIEC61010-1(EN61010-1).

Pollutiondegree2inaccordancewithIEC-664indoor use. Iftheequipmentis used in a mannernot

specified,theprotectionprovidedbytheequipmentmaybeimpaired.

Ⅴ

7.  Donotoperatethismultimeterinanexplosiveatmosphere(i.e.,in the presence of flammable gases

orfumes,vaporordust.)

Chapter1

AQuickTour

SymbolExplanation

Earth(ground )TERMINAL

AC-Alternatingcurrent

DC -Directcurrent

Audiblecontinuity

Equipment protectedthroughout by Double Insulation ( Protection Class Ⅱ)

1-1

Caution

Caution,Possibility of electric shock

InstrumentLayout

Figure1-1.  BenchMultimeterFeatures(Forward)

1-2

Figure1-2.  BenchMultimeterFeatures(Backward)

1-3

1. V ΩHz   Volt,Ohms,Diode,Frequency InputTerminal

Thisisthepositiveinputterminalforallfunctionexceptcurrent measurements.Connectionismadeto

usingtheRedtestlead.

2. COM Common Terminal

Thisisthenegative(ground)inputterminalforallmeasurementmodes.Connectionismadetousingthe

Blacktestlead.

3. mA MilliampInputTerminal

Thisisthepositiveinputterminalforcurrentmeasurement(ACor DC) up to 400 mA. Connection is made

tousingtheRedtestlead.

4. A 10 AmperesInputTerminal

Thisisthepositiveinputterminal for current measurement(ACorDC) up to 10A. Connection is made to

usingtheRedtestlead.

5. Function/RangeSelectorRotary Switch

Thisrotaryswitchselectsthefunction,andselectsthedesiredrange.

6. Function/RangeSelectorButtons

1-4

Thisbuttonsselectsthefunction,andselectsthedesiredrange.

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