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05/03/2013, 13:43
... 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& apos;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
... (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.
...