Sinometer-MS8211-Digital-Multimeter-User-Manual

WARNING
BEEXTREMELYCAREFULINTHEUSEOFTHISMETER.Improperuseofthisdevice
canresultinelectricshockordestroyofthemeter.Followallsafeguardssuggestedinthis
manualandthenormalsafetyprecautionsusedinworkingwithelectricalcircuits.
Donotservicethisdeviceifyouarenotqualifiedtodoso.
To
ensuresafeoperation,andinordertoexploittothefullthefunctionalityofthemeter,
pleasefollowthedirectionsinthissectioncarefully.
ThismeterhasbeendesignedaccordingtoIEC-1010concerningelectronicmeasuringinstrumentswith
anovervoltagecategoryCATⅢ600Vandpollution2.
Followallsafetyandoperatinginstructionstoensurethatthemeterisusedsafelyandiskeptingood
operatingcondition.
Withproperuseandcare,thedigitalmeterwillgiveyouyearsofsatisfactoryservice.
1.1PRELIMINARY
1.1.1Whenusingthemeter,theusermustobserveallnormalsafetyrulesconcerning:
-Protectionagainstthedangersofelectricalcurrent.
-Protectionofthemeteragainstmisuse.
1.1.2Whenthemeterisdelivered,checkthatithasnotbeendamagedintransit.
1.1.3Whenpoorconditionunderharshpreservationorshippingconditionscaused,inspectandconfirm
thismeterwithoutdelay.
1.1.4Beforeusingtocheckforvoltage,alwaystestthemeteronaknownlivecircuittoverifythatthe
detectfunctionofthemeterisworkingproperly.
1.1.5
Test
leadortestclipmustbeingoodcondition.Beforeusingverifythattheinsulationontestleador
testclipisnotdamagedand/ortheleadswireisnotexposed.
1.1.6Fullcompliancewithsafetystandardscanbeguaranteedonlyifusedwithtestleadssupplied.
Ifnecessary,theymustbereplacedwiththesamemodelorsameelectricratings.
User'sManual
SinoMeter MS8211
1.2DURINGUSE

1.2.1Beforeusing,youmustselecttherightfunctionandrange.
1.2.2Neverexceedtheprotectionlimitvaluesindicatedinspecificationsforeachrangeofmeasurement.
1.2.3Whenthemeterislinkedtoameasurementcircuit,donottouchtheprobetipofthemeterandtest
lead(ortestclip).
1.2.4Atthemanualrange,whenthevaluescaletobemeasuredisunknownbeforehand,selectthe
highestrange.
1.2.5Donotmeasurevoltageifthevoltageontheterminalsexceeds600Vaboveearthground.
1.2.6Alwaysbecarefulwhenworkingvoltagesabove60VDCor30VACrms,keepfingersbehindthe
probebarrierwhilemeasuring.
1.2.7Neverconnectthemeterleadsacrossavoltagesourcewhilethetransformswitchisinthe
resistance,diodeorcontinuitymode.Doingsocandamagethemeter.
1.2.8Neverperformresistance,diodeandcontinuitymeasurementsonlivecircuits.
1.2.9ACVdetectingiswithoutcontact,theprobeshouldberevolvedinthemetercompletelywhenuse,
anddonotcontacttheCOMjackwhichatthebackofthemeterwiththetestlead(ortestclip).
1.2.10Beforerotatingthetransformswitchtochangethefunction,disconnectthetipofmeterandthe
probe
ofthetestlead(ortestclip)fromthecircuitundertest.
1.2.11Neverusethemeterundertheconditionoftheexplosiveair,steamordirt.
1.2.12Ifanyfaultsorabnormalitiesareobserved,themetercannotbeusedanymoreandithastobe
checkedout.
1.2.13Neverusethemeterunlesstherearcaseisinplaceandfastenedfully.
1.2.14Pleasedonotstoreorusemeterinareasexposedtodirectsunlight,hightemperature,humidityor
condensation.
1.3SYMBOLS
Importantsafetyinformation,refertotheoperatingmanual.
Doubleinsulation（Protectionclass((）.
CAT(((Overvoltage(Installation)categoryIII,PollutionDegree2perIEC1010-1referstothelevelof
ImpulseWithstandVoltageprotectionprovided.
Conformstoeuropeanuniondirective
Earthground

ACAlternatingcurrent
DCDirectcurrent
ACorDC(alternatingcurrentordirectcurrent)
Diode
Continuitybuzzer
M.HThemaximumvalueisbeingheld.
D-HThisindicatesthatthedisplaydataisbeingheld.
AUTOAutorange


Thebatteryisnotsufficientforproperoperation.
1.4MAINTENANCE
1.4.1Pleasedonotattempttoadjustorrepairthemeterbyremovingtherearcasewhilevoltageisbeing
applied.
A
technicianwhofullyunderstandsdangerinvolvedshouldonlycarryoutsuchactions.
1.4.2Beforeopeningthebatterycoverorcaseofthemeter,alwaysdisconnectthetipofmeterandthe
probeofthetestlead(ortestclip)fromalltestedcircuits.
1.4.3
To
avoidthewrongreadingcausingelectricityattack,whenthemeterdisplays“
”,youmust
changethebattery.
1.4.4Donotuseabrasivesorsolventsonthemeter,useadampclothandmilddetergentonly.
1.4.5AlwayssetthetransformswitchtotheOFFpositionwhenthemeterisnotinuse.
1.4.6Ifthemeteristobestoredforalongperiodoftime,thebatteriesshouldberemovedtoprevent
damagetotheunit.
2.DESCRIPTION
-ThismeterisaportableprofessionalmeasuringinstrumentwithhandsomeLCDeasilyreading.
-Singleoperationofatransformswitchmakesmeasurementconvenient.Overloadprotectionandlow

batteryindicationareprovided,thismeterisidealforuseinthefields,workshop,school,hobbyand
homeapplications.
-Non-contactdetectingisconvenienttotestthesocketortheleadwhetheriswithpowerornot.
-Thismeterhasfunctionofautorangeandmanualrange.
-Thismeterhasfunctionofautopoweroff.
-Thismeteriswiththefunctionsofdataholdandmaximumvaluemeasureandhold.
-Whenusing,itcanshowrangesengineeringunitenunciatorsmeasuringresults.
2.1NAMESOFCOMPONENTS
⑴Probe
⑵RotatableProbeSocket
⑶LEDIndicator
⑷ProtectionRing
⑸TransformSwitch
⑹SensitivityAdjustKnob
⑺FUNC.Button
⑻RANGEButton
⑼MAX.HButton
⑽DATA-HButton
⑾Panel
⑿LCDDisplay
⒀COMJack
2.2COMPONENTSELUCIDATION
-RANGEButton
ThisbuttonisusedtotransformAutorangeormanualrange.
-FUNC.Button
Thisbuttonisusedtotransformfunction.
-DATA-HButton
ThisButtonisusedtoholddata.
-MAX.HButton
Thisbuttonisusedtomeasureandholdthemaximumvalue.

-TransformSwitch
Thisswitchisusedtoselectfunctionsanddesiredranges.
-Probe
InputterminalsforV/Ω/
/
andACvoltagedetector.
-COMJack
Commonterminalformeasurement.
-LCDDisplay
AtV/Ω/
/
range,themeasuringresultcanbedisplayed.
-LEDIndicator
AtTESTrange,ACVdetectingresultcanbeindicated.
-RotatableProbeSocket
Rotatingtheprobeinoroutofthemeter.
-ProtectionRing
To
keepthehandfromtheprobebehindthering.
-SensitivityAdjustKnob
To
adjustthesensitivitywhileACVdetecting.
3.SPECIFICATIONS
Accuracyisspecifiedforaperiodofyearaftercalibrationandat18℃to28℃（64℉to82℉）withrelative
humidityto75%.
3.1GENERALSPECIFICATIONS
3.1.1Autorangesandmanualrange.
3.1.2Max.VoltageBetweenTerminalsAndEarthGround:600VDCorAC
3.1.3OperatingAltitude:2000meters(7000ft.)maximum
3.1.4Display:20mmLCD

3.1.5Max.ShowValue:1999(31/2)
3.1.6PolarityIndication:‘-’indicatesnegativepolarity.
3.1.7OverrangeIndication:Display‘OL
’
3.1.8SamplingTime:approx.0.4second
3.1.9Unitshowing:showingoffunctionandelectricalcapacity.
3.1.10LowBatteryIndication:‘
’
displayed
3.1.11Autopowerofftime:15min.
3.1.12PowerSupply:1.5V×2AAAbattery.
3.1.13OperatingTemperature:0℃to40℃（32(Fto104(F）
3.1.14StorageTemperature:-10℃to50℃（10(Fto122(F）
3.1.15Dimension:208×38×29mm
3.1.16Weight:approx.110g（includingbattery）
3.2ELECTRICALSPECIFICATIONS
CircumstanceTemperature:23(5℃RelativeHumidity:<75%
3.2.1DCVoltage
RangeResolutionAccuracy
200mV0.1mV
2V0.001V
20V0.01V
±（0.7%ofrdg+2digits）
200V0.1V
600V1V
-InputImpedance:10MΩ
-OverloadProtection:200mVrange:250VDCorACrms,
2V-600Vranges:DC600VorAC600Vrms.
-Max.InputVoltage:600VDC
3.2.2ACVoltage

RangeResolutionAccuracy
200mV0.1mV
2V0.001V
±（0.8%ofrdg+3digits）
20V0.01V
200V0.1V
600V1V±（1.0%ofrdg+3digits）
-InputImpedance:10MΩ
-OverloadProtection:200mVrange:250VDCorACrms,
2V-600Vranges:DC600VorAC600Vrms.
-FrequencyRange:40to400Hz
-Response:Average,calibratedinrmsofsinewave.
-Max.InputVoltage:600VrmsAC
3.2.3Resistance
RangeResolutionAccuracy
200Ω0.1Ω
±（1.0%ofrdg+3digits）
2kΩ0.001kΩ
20kΩ0.01kΩ±（1.0%ofrdg+1digit）
200kΩ0.1kΩ
2MΩ0.001MΩ
20MΩ0.01MΩ
±（1.0%ofrdg+5digits）
-OpenCircuitVoltage:0.25V
-OverloadProtection:250VDCorrmsAC
3.2.4Continuity
RangeFunction
Built-inbuzzerwillsound,ifresistanceislowerthan50(.
-Opencircuitvoltage:approx.0.5V
-OverloadProtection:250VDCorrmsAC

3.2.5Diode
RangeResolutionFunction
0.001VDisplay:readapproximateforwardvoltageof
diode
-ForwardDCCurrent:approx.1mA
-ReversedDCVoltage:approx.1.5V
-OverloadProtection:250VDCorrmsAC
3.2.6ACVoltageDetect
RangeTEST
Sensitivity
Voltagesensitivity>50V，adjustcontinuously
Frequency50Hz
Distance<150mm（changealongwiththesensitivity）
-Non-contactdetecting
4.OPERATINGINSTRUCTION
4.1
DATA
HOLD
Ifyouneeddataholdwhenmeasuring,youcanputon“DATA-H”button,itwillholdthereading;ifyouput
thebuttonagain,dataholdisnotcontinue.
4.2MAXIMUMVALUEMEASURINGANDHOLD
Attherangeofvoltage,youcanputon“MAX.H”button,itwillholdthemaximumvalue;ifyouputthe
buttonagain,themaximumvaluewillnotbeheld.
4.3FUNCTIONTRANSFORM
Putdownthe"FUNC."whenmeasuringthevoltage.MeterwillbetransformedbetweenDCandAC
range.Put"FUNC."whenmeasuringtheresistance,diodeandcontinuity,meterwilltransformamong
them.
4.4RANGETRANSFORM
Theautorangeisusedwhenmeasuringthevoltageandresistance.Putdownthe"RANGE"ifthe
manualrangeisneeded.Eachtimeyouputdown,rangewillgoupward;theminimumrangeis

transformedif"RANGE"isputdownatthemaximumrange.Ifthe"RANGE"isputdownmorethantwo
seconds,autorangeisusedagain.
4.5AUTOPOWEROFF
Ifthere’snoanyoperationwithinfifteenminutesafterpowerison,meterwillautopoweroffwithfiveshort
soundsandalongsoundinaminute.
Afterautopoweroff,ifstirthetransformswitchorputdownanybuttonof“FUNC.”,
“DATA-H”,”MAX.H”,”RANGE”,meterwillrecovertheworkingcondition.
Ifpressesthe“FUNC.”whenpowerison,autopoweroffdisable.
NOTE:
AttheTESTrange(ACVdetecting),thereisnoautopowerofffunction
4.6PREPARATIONFORMEASUREMENT
4.6.1Setthetransformswitchtotherightrange.Atthemanualrange,whenthevaluescaletobe
measuredisunknownbeforehand,selectthehighestrange.
4.6.2Whenmeasuring,atfirst,connecttothepublic(COM)testingline,thenconnecttheprobetipofthe
metertothecircuitundertest.
4.6.3Ifthebatteryvoltageislessthan2.4V,displaywillshow“
”,thebatteryshouldbechangedatthis
time.
4.7DCVOLTAGEMEASURING
WARNING
RiskofElectrocution.
Youcan’tinputthevoltagewhichishigherthan600VDC,it’spossibletoshowhigher
voltage,butitmaydamagetheinnercircuitorcauseelectricalshock.
Payattentiontoavoidgettinganelectricshockwhenmeasuringhighvoltage.
4.7.1Rotatetheprobesocketclockwisetospinouttheprobefromthemeter.
4.7.2InserttheblacktestleadortestclipintheCOMjack.
4.7.3Setthetransformswitchatthe
V
rangeposition.
4.7.4Pressthe"FUNC."Button

totransformtoDCmeasurement.
Autorangeandmanualrange
canbetransformedby
pressingthe“RANGE”
button.
4.7.5Connecttheprobetipofthemeterandprobetipofthetestlead(ortestclip)acrossthepower
sourceorbeloadedonthetwosidesundermeasurement.
4.7.6YoucangetareadingfromLCDdisplay.Thepolarityofthetestedterminalwhichthetipofthe
meterconnectionwillbeindicated.
NOTE:
-Atthelittlevoltagerange,themeterwillshowunsteadyreadingwhentestleadshaven’treachthecircuit,
it’snormalbecausethemeterisverysensitivity.Whenmetertouchthecircuit,youcangetthetrue
reading.
-Atthemanualrangemode,whenonlythefigure‘OL
’
isdisplayed,itindicatesoverrangesituationand
thehigherrangehastobeselected.
-Atthemanualrangemode,whenthevaluescaletobemeasuredisunknownbeforehand,selectthe
rangetothehighestpositionandsetdowngradually.
4.8MEASURINGACVOLTAGE
4.8.1Rotatetheprobesocketclockwisetospinouttheprobefromthemeter.
4.8.2InserttheblacktestleadortestclipintheCOMjack.
4.8.3SetthetransformswitchattheVrangeposition.
4.8.4Autorangeandmanualrangecanbetransformedbyputtingthe“RANGE”.
4.8.5Connecttheprobetipofthemeter
toonesideofthetestedcircuit
andprobetipofthetestlead
(ortestclip)totheother
side.
4.8.6Youcangetreadingfrom

LCDdisplay.
WARNING
RiskofElectrocution.
Youcan’tinputthevoltagewhichishigherthan600VrmsAC,it’spossibletoshowhigher
voltage,butitmaydamagetheinnercircuitorcauseelectricalshock.
Payattentiontoavoidgettinganelectricshockwhenmeasuringvoltage.
NOTE:
-Atthemanualrangemode,whenonlythefigure‘OL
’
isdisplayed,itindicatesoverrangesituationand
thehigherrangehastobeselected.
-Atthelittlevoltagerange,themeterwillshowunsteadyreadingwhentestleadshaven’treachthecircuit,
it’snormalbecausethemeterisverysensitivity.Whentestleadstouchthecircuit,youcangetthetrue
reading.
-Atthemanualrangemode,whenthevaluescaletobemeasuredisunknownbeforehand,selectthe
rangeatthehighestpositionandsetdowngradually.
-TransformtothemanualrangewhenusethemVrange.
4.9MEASURINGRESISTANCE
4.9.1Rotatetheprobesocketclockwisetospinouttheprobefromthemeter.
4.9.2InserttheblacktestleadortestclipintheCOMjack.
4.9.3Setthetransformswitchatthe(rangeposition.
Autorangeormanualrangecanbe
transformedbyputtingthe“RANGE”.
4.9.4Connecttheprobetipofthe
metertoonesideofthetested
circuitandprobetipofthetest
lead(ortestclip)totheotherside.
4.9.5YoucangetreadingfromLCDdisplay.
WARNING
RiskofElectrocution.

Whenmeasuringin-circuitresistance,besurethecircuitundertesthasallpower
removedandthatallcapacitorshavebeendischargedfully.
NOTE:
-Atthemanualrangemode,whenonlythefigure‘OL
’
isdisplayed,itindicatesoverrangesituationand
thehigherrangehastobeselected.
-Formeasuringresistanceabove1MΩ,themetermaytakeafewsecondstogetstablereading.
-Whentheinputisnotconnected,i.e.atopencircuit,thefigure‘OL
’
willbedisplayedfortheoverrange
condition.
4.10TESTINGDIODE
4.10.1Rotatetheprobesocketclockwisetospinouttheprobefromthemeter.
4.10.2InserttheblacktestleadortestclipintheCOMjack.
4.10.3Setthetransformswitchatthe
rangeposition.
4.10.4putdownthe"FUNC."transformedat
test.
4.10.5Connecttheprobetipofthemetertotheanodeofthediode,
theblacktestlead(ortestclip)tothecathodeofthediode.
4.10.6YoucangetreadingfromLCDdisplay.
NOTE:
-Themeterwillshowthe
approximateforwardvoltage
dropofthediode.
-Ifthemeterandtheleadconnectionisreversed,onlyfigure‘OL
’
willbedisplayed.
-Whentheinputisnotconnected,i.e.atopencircuit,thefigure‘OL

’
willbedisplayed.
4.11CONTINUITYTEST
WARNING
RiskofElectrocution.
Whentestingthecircuitcontinuity,besurethatthepowerofthecircuithasbeenshut
downandallcapacitorshavebeendischargedfully.
4.11.1Rotatetheprobesocketclockwisetospinouttheprobefromthemeter.
4.11.2InserttheblacktestleadortestclipintheCOMjack.
4.11.3Setthetransformswitch
atthe
rangeposition.
4.11.4Putdownthe"FUNC."
transformedat
continuitytest.
4.11.5Connecttheprobetipof
themetertoonesideofthetestedcircuitandprobetipofthetestlead(ortestclip)totheotherside.
4.11.6Ifcontinuityexists(i.e.,resistancelessthanabout50Ω),built-inbuzzerwillsound.
NOTE:
-Iftheinputopencircuit(orthecircuitresistancemeasuredishigherthan200Ω),thenthefigure‘0L
’
will
bedisplayed.
4.12ACVOLTAGEDETECT
WARNING
RiskofElectrocution.
Whendetectingpayattentiontoavoidgettinganelectricshock.
Beforeusingtocheckforvoltageinanoutlet,alwaystestthemeteronaknownlive
circuittoverifythattheACvoltagedetectfunctionofthemeterisworkingproperly.
keepfingersbehindtheprobebarrierwhilemeasuring.

4.12.1Rotatetheprobesocketanti-clockwisetospintheprobeintothemeter.
4.12.2Setthetransformswitchatthe
Vrangeposition.
4.12.3Besurethatthedisplayisnot
shown“
”,otherwise,the
batteryshouldbereplaced.
4.12.4Setthetransformswitchto
theTESTrange.ThenthegreenLEDoftheLEDIndicatorisbright.
4.12.5Rotatethesensitivityadjustingknobinthemiddleofthetransformswitchanti-clockwise,setthe
meter
tothehighestdetectingsensitivityinordertoenlargethedetectingrange.
4.12.6Puttheprobesocketclosetotheleadorthepowersocket,IfACelectricalvoltageispresent,the
redLEDIndicatorwhichinfrontofthemeterwillflashandtheaudiblewarningwillsound.
4.12.7Intheplaceswithmanyleadsandjacks,rotatethesensitivityadjustingknobinthemiddleofthe
transformswitchclockwise,setthemetertothelowerdetectingsensitivityinordertoconfirmwhichone
iselectriferous.
NOTE:
-WhenusingACVdetectingfunction,alwayssetthemetertothehighestsensitivity.
-Inthisrange,eventhoughthereisnoanysoundandlightindication,themeterwillstillconsume
electricity.
-Thereisnoautopowerofffunctioninthisrange.
-AlwayssetthepowerswitchtotheOFFpositionwhenthemeterisnotinuse.
5.MAINTENANCE
5.1BATTERYREPLACEMENT
WARNING
Beforeattemptingtoopenthebatterycoverofthemeter,besurethattheprobetipofthe
meterandtestlead(ortestclip)havebeendisconnectedfrommeasurementcircuitto
avoidelectricshockhazard.
5.1.1Ifthesign‘

’
appearsontheLCDdisplay,itindicatesthatthebatteryshouldbereplaced.
5.1.2Loosenthescrewfixingthebatterycoverandremoveit.
5.1.3Replacetheexhaustedbatterywithanewone.
5.1.4Putthebatterycoverasitsorigin.
5.2TESTLEADS(ORTESTCLIP)REPLACEMENT
WARNING
Fullincompliancewithsafetystandardscanbeguaranteedonlyifusedwithtestleads
supplied.Ifnecessary,theymustbereplacedwiththesamemodelorsameelectric
ratings.Electricratingsofthetestleads:600V10A.
Youmustbereplacedthetestleadiftheleadisexposed.
6.ACCESSORIES
⑴
Test
Lead:ElectricRatings600V10Aonepiece
⑵
Test
Clip:ElectricRatings600V10Aonepiece
⑶Battery:1.5V,AAAtwopieces
⑷InstructionManualonepiece