Silverline 513121 Manuale utente

Users Manual

Expert Digital Multimeter

Product Code 513121

Thank you for choosing this product.

This product is guaranteed to be free of defects in materials and workmanship for a period

of 3 years from the purchase date.

If you experience a problem, return the product direct to us, with the original receipt at :

Silverline Tools Limited

PO Box 2988

Yeovil

BA21 1WU

We do not refund carriage. This guarantee is for Great Britain only and does not affect your

statutory rights. As you would expect fair wear and tear are not covered.

Transistor hFE Test

Diode Test

• Overload protection: 250V effective value.

• ForwardDCcurrent:approximate1mA.

• ReversedDCvoltage:approximate3.0V.

Continuity

• Overloadprotection:250Veffectivevalue.

Opencircuitvoltage:approximate3.0V.

Capacitor

• Overload protection: 250V effective value.

Battery

PRIOR TO USE

Thoroughlyreadandunderstandtheoperatinginstructions.

• Check9vbattery,ifthebatteryvoltageislessthan7v,display

 willshow'',thebatteryshouldbereplacedatthistimeto 

 ensuremeasuringprecision.

• Payattentiontothe""besidestheinputjackwhichshows

 thattheinputvoltageorcurrentshouldbewithinthespecified

value.

• Therangeswitchshouldbepositionedtothedesired

 measurementrangeformeasurementbeforeoperation.

OPERATING INSTRUCTIONS

Measuring DC Voltage

• ConnecttheblacktesttoCOMjackandtheredtoVΩmAjack.

• SettherotaryswitchatthedesiredVrangeposition.

• Connecttestleadsacrossthesourceorloadunder

 measurement.

• YoucangetreadingfromLCD.Thepolarityoftheredlead 

 connectionwillbeindicatedalongwiththevoltagevalue.

Note:

• Whenthevaluescaletobemeasuredisunknownbeforehand,

settherangeselectoratthehighestposition.

• Whenthefigure'1'of'-1'isdisplayed,itindicatesover- 

 rangesituationandthehigherrangehastobeselected.

• ""meansyoucan'tinputvoltagehigherthan600V,it's

 possibletoshowhighervoltage,butitmaydestroytheinner 

 circuitorposeashockhazard.

• Alwaysexercisecautionwhenworkingwithelectric,ifinany 

 doubtseekadvicefromaqualifiedelectrician.

Measuring AC Voltage

• ConnecttheblacktesttoCOMjackandtheredtoVΩmAjack.

• SettherotaryswitchatthedesiredV~rangeposition.

• Connecttestleadsacrossthesourceorloadunder

 measurement.

Note:

• Whenthevaluescaletobemeasuredisunknown,setthe 

 rangeselectoratthehighestposition.

• Whenonlythefigure'1'or'-1'isdisplayed,itindicatesan

 over-rangesituationahigherrangeshouldbeselected.

• ""meansyoucan'tinputvoltagehigherthan600V,it's 

 possibletoshowhighervoltage,butitmaydestroytheinner 

 circuitorposeashockhazard.

• Alwaysexercisecautionwhenworkingwithelectric,ifinany 

 doubtseekadvicefromaqualifiedelectrician.

Measuring DC/AC Current

• ConnecttheblacktestleadtoCOMjackandtheredtothe 

 VΩmAjackforamaximum200mAcurrent.

• SettherotaryswitchatthedesiredA/A~rangeposition.

• Connecttestleadsinserieswiththeloadundermeasurement.

• Thepolarityoftheredleadconnectionwillbeindicatedalong

 withthecurrentvalue.

Note:

• Whenthevaluescaletobemeasuredisunknown,setthe 

 rangeselectoratthehighestposition.

• Whenonlythefigure'1'or'-1'isdisplayed,itindicatesan

 over-rangesituationahigherrangeshouldbeselected.

• ""meansthesocketmA'smaximumcurrentis200mAand

 10A'smaximumcurrentis10A,overcurrentwilldestroythe 

 fuse.Since10Aisnotfused,themeasuringtimeshouldbe 

 lessthan1secondtopreventprecisionfromaffectingbycircuit

heating.

Measuring Resistance

• ConnecttheblacktestleadtoCOMjackandtheredtoVΩmA

 jack.

• SettherotaryswitchatthedesiredΩrangeposition.

• Connecttestleadsacrosstheresistanceundermeasurement.

• YoucangetreadingfromLCD.

Note:

• Whenonlythefigure'1'or'-1'isdisplayed,itindicatesan

 over-rangesituationahigherrangeshouldbeselected.

• Formeasuringresistanceabove1MΩ,themetermaytakea 

 fewsecondstogetastablereading.

• Whentheinputisnotconnected,i.e.atopencircuit,thefigure

'1'willbedisplayedfortheover-rangecondition.

• When checking in-circuit resistance, be sure the circuit

under test has all power removed and that all capacitors

have been discharged fully.

• Whenthevaluescaletobemeasuredisunknown,setthe 

 rangeselectoratthehighestposition.

Transistor Testing

• Settherotaryswitchat'hFE'position.

• DeterminewhetherthetransistorundertestingisNPNorPNP

 andlocatetheemitter,baseandcollectorleads.Insertthe 

 leadsintoproperholesofhFEsocketonthefrontpanel.

• ReadtheapproximatehFEvalueatthetestingconditionof 

 basecurrent1b10uAandVce3V.

Diode Testing

• ConnecttheblacktestleadtoCOMjackandtheredtoVΩmA,

jack.(Thepolarityofredlead'+').

• SettherotaryswitchattheFrangeposition.

SAFETY INSTRUCTIONS

Itisimportanttoreadandunderstandyourinstructionmanual.

Learnthetoolsapplication,aswellasit'slimitationsandthe

potentialhazardsassociatedwiththistool.

ADDITIONAL SAFETY INFORMATION FOR MULTIMETER

• ThemeterisdesignedaccordingtoIEC-1010withan

 over-voltagecategory(CATIII)andpollution2.

• Followallsafetyandoperatinginstructionstoensurethat 

 themeterisusedsafelyandiskeptingoodoperating

condition.

• SafetySymbols:

 Importantsafetyinformation,refertotheoperatingmanual.

 Dangerousvoltagemaybepresent.

• Doubleinsulation(ProtectionClassIII).

• Themeterissafeonlyaccordingtostandardprocedures 

 whenusedinconjunctionwiththesuppliedtestleads.Replace

damagedtestleadsonlywiththesamemodelorsame

 electricspecifications.

• Donotusethemeterbeforethecoverisinplacetoavoid 

 riskofelectricshock.

• Therangeswitchshouldbeintherightpositionfortesting.

• Toavoidelectricshockanddamagingtheinstrument,theinput

signalsshouldnotexceedthespecifiedlimits.

• WhenmeasuringswitchedpowersuchasTVsets,attention 

 shouldbepaidtothepossiblepulsesthatmaycause

 destructionofthecircuit.

• Rangeswitchpositionshouldneverbechangedatrandom 

 duringmeasurement.

• Cautionagainstshockwhenmeasuringvoltageshigherthan 

 DC60V&AC30V.

• Protectionfuseshouldbereplacedonlywithsametypeand 

 specification.

1.LCDDisplay:31/2digits,character16mmhigh

2.BackLightButtonSwitch:Pressbuttontoswitchonthe 

 backlight,itwillautomaticallyswitchoffafter5seconds.

3.Rotaryswitch:usethisswitchtoselectfunctionsandranges.

4.VΩmACx+InputJack

5.COMInputJack

6.Cx-InputJack

7.Data-holdSwitch(HOLD)

SPECIFICATIONS

• Maxvoltagebetweeninputterminalandearthground:CAT 

 III600V.

• Over-rangeindication:display"1"forthesignificantdigit.

• Automaticdisplayifnegativepolarity"_".

• Lowbatteryindication:''displayed.

• MaxLCDdisplay:1999(31

/2)digits).

• Fuseprotection:F-200mA/250V(ø5x20mm).

• Powersupply:9Vbattery.

• Operatingtemp:0˚C(relativehumidity<85%).

• Storagetemp:10˚Cto50˚C(relativehumidity<85%).

• Guaranteedprecisiontemp:23+5˚C(relativehumidity<85%).

• Dimensions:143x75x32mm.

• Weight:approx200g(includingbattery).

Accuracyisspecifiedforaperiodof1yearaftercalibrationandat

18˚Cto28˚C(64˚Fto82˚F)withrelativehumidityto75%.

DC Voltage

• Inputimpedance:10MΩ.

• Overloadprotection:250Vfor200mVrange,effectiveDCor 

 AC600Vforotherranges.

AC Voltage

• Frequencyrange:40to400HZ.

• Response:average,calibratedinrmsofsinewave.

DC Current

• Overloadprotection:F200mA/250Vfuse.

AC Current

Resistance

•Overload protection: 250V effective value.

Product Familiarisation

Digital Multimeter

Range Resolution Accuracy

200V 100mV +1.2%ofrdg+20digits

600V 1V +1.2%ofrdg+20digits

Range Resolution Accuracy

200uA 0.1µA +1.0%ofrdg+20digits

200mA 0.1mA +1.5%ofrdg+20digits

Range Resolution Accuracy

200uA 0.1µA +1.8%ofrdg+20digits

200mA 0.1mA +2.5%ofrdg+20digits

Range Resolution Accuracy

200Ω 0.1Ω +1.0%ofrdg+25digits

20KΩ 10Ω

20MΩ 10KΩ

+1.0%ofrdg+20digits

+2.5%ofrdg+20digits

Range TestRange TestCurrent/Voltage

NPN&PNP 0-1000 Ib=10uA/Vce=3V

Range Resolution Function

1mV Display:readapproximate

forwardvoltageofdiode

Range Function

Built-inbuzzerwillsoundifresistanceis

lowerthan50

Range Resolution Accuracy

200nF 0.1nF +2.5%ofrdg+30digits

20uF

0.01uF

+2.5%ofrdg+30digits

+9.0%ofrdg+40digits

0.01uF-10-

10uF-20uF

Range LoadResistance BatteryByTestIsGood

1.5V 36Ω morethan33mA

9V 360Ω

12V 450Ω

morethan18mA

morethan14mA

Range Resolution Accuracy

200mV 0.1mV +0.5%ofrdg+17digits

20V 10mV

600V 1V

+0.8%ofrdg+18digits

• Connecttheredleadtotheanodeandtheblackleadtothe 

 cathodeofthediodeundertesting.

Note:

• Themeterwillshowapproximateforwardvoltagedropofthe 

diode.

• Iftheleadconnectionsisreversed,only'1'willbedisplayed.

Continuity Testing

• ConnecttheblacktestleadtoCOMjackandtheredtoVΩmA

 jack.

• Settherotaryswitchattherangeposition.

• Connecttestleadsacrosstwopointsofthecircuitunder

 testing.

• Ifcontinuityexists(i.e.resistancelessthanabout50Ω),the 

 built-inbuzzerwillsound.

Note:

 Iftheinputisanopencircuit,thefigure'1'willbedisplayed.

Measuring Capacitor

• ConnecttheblacktestleadtoCx-jackandtheredtoCx+jack.

• Settherotaryswitchatthedesired20uF/200nFrangeposition.

• Beforeinsertingcapacitorundermeasurementintocapacitance

testingsocketbesurethatthecapacitorhas  

 beendischargedfully.

Measuring Battery

• Loadresistance 1.5vrange:36Ω

   9Vrange:360Ω

   12Vrange:450Ω

• The1.5Vbatteryisgoodwhenthedisplayismorethan33mA.

• The9Vbatteryisgoodwhenthedisplayismorethan18mA.

• The12Vbatteryisgoodwhenthedisplayismorethan14mA.

MAINTENANCE

• Beforeattemptingtoremovethebatterydoororopenthecase,

besurethattestleadshavebeendisconnectedfrom 

 measurementcircuittoavoidelectricshockhazard.

• Toavoidelectricalshock,removetestleadsfrommeasurement

circuitsbeforereplacingthefuse.Replacefusesonlywitha 

 specifiedrating:F-200mA/250Vfuse.

•Replacethetestleadsiftheleadisdamagedorexposedin 

 anyway.Onlyreplaceleadswiththesametypeand

 specification.

• Useonlymoistfabricorasmallamountofdetergent,never

usechemicalsolutionsforcleaning.

• Donotusethemeterbeforethebackcoverisproperlyclosed

 andscrewsecured.

• Uponanysignsofabnormality,stopoperationimmediatelyand

 sendthemeterformaintenancebyaqualifiedtechnician.

Indice

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