Silverline 513121 User manual

Users Manual
Expert Digital Multimeter
Product Code 513121
© May 2006
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.
1
5
3
2
4
6
7
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
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
+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.