Brymen BM230R Series User manual

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USER'S
MANUAL
BRIGHTPEOPLESCHOICE
Mìøící a dílenské pøístroje / Multimetry
uvádí:
BRYMEN BM236R, BM237R, BM239R

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Thismanualcontainsinformationandwarningsthatmustbefollowedforoperatingthemeter
safelyandmaintainingthemeterinasafeoperatingcondition.Ifthemeterisusedina
mannernotspeci fiedbythemanufacturer,theprotectionprovidedbythemetermaybe
impaired.
identifiesconditionsandactionsthatcouldresultinseriousinjuryorevendeath
totheuser.
identifiesconditionsandactionsthatcouldcausedamageormalfunction in the
instrument.
Toreducetheriskoffireorelectricshock,donotexposethisproducttorainormoisture.
Themeterisintendedonlyforindooruse.
Keepyourhands/fingersbehindthehand/fingerbarriers (ofthemeterandthetestprobe
assembly,whereapplicable)thatindicatethelimitsofsafeaccessofthehand held parts
duringmeasurements.Inspectleadwires,connectors,andprobesfordamagedinsulationor
exposedmetalbeforeusingthemeter.If anydefectsarefound,replacethemimmediately.
OnlyusetheprobeassemblyprovidedwiththemeteroraULListedProbeAssemblytothe
samemeterratingsorbetter.
IEC61010031requiresexposedconductivetestprobetipstobe 4mmforCATIII&CAT
IVratings.Refertothecategorymarkingsonyourprobeassembliesaswellasontheadd 
onaccessories(likedetachableCapsorAlligatorClips),ifany,forapplicableratingchanges.
Observepropersafetyprecautionswhenworkingwithvoltagesabove 33Vrms,46.7Vpeak
or70VDC.Thesevoltagelevelsposeapotentialshockhazardtotheuser.Beforeandafter
hazardousvoltagemeasurements,checkthevoltagefunctiononaknownsourcesuchas
linevoltagetodeterminepropermeterfunctioning.
Disconnectthetestleadsfromthetestpointsbeforechangingfunctions.

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MarkingofElectricalandElectronicEquipment(EEE).Donotdisposeofthis
productasunsortedmunicipalwaste.Contactaqualifiedrecycler
Caution!RefertotheexplanationinthisManual
Caution!Possibilityofelectricshock
Earth(Ground)
MeterprotectedthroughoutbyDoubleInsulationorReinforcedinsulation
Fuse
DirectCurrent(DC)
AlternatingCurrent(AC)
3 ThreephaseAlternatingCurrent
isapplicabletotestandmeasuringcircuitsconnectedatthe
voltage MAINSinstallation.Examplesaremeasurementson
devicesinstalledbeforethemainfuseorcircuitbreakerinthebuildinginstallation.
isapplicabletotestandmeasuringcircuitsconnectedtothe
s lowvoltage MAINS installation. Examples are
measurementsondistributionboards(includingsecondarymeters),circuit breakers,wiring,
includingcables,bus bars,junctionboxes,switches,socket outletsinthefixedinstallation,
andequipmentforind ustrialuseandsomeotherequipmentsuchasstationarymotorswith
permanentconnectiontothefixedinstallation.
isapplicabletotestandmeasuringcircuitsconnecteddirectlyto
utilizationpoints(socketoutletsandsimilarpo ints)ofthelow voltageMAINSinstallation.
ExamplesaremeasurementsonMAINSCIRCUITSofhouseholdappliances,portabletools
andsimilarequipment.
The instruments conform to CENELEC Lowvoltage directive 2014/35/EC,
Electromagneticcompatibilitydirective2014/30/EU andRoHSdirective2011/65/EU.

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Note:Topofthelinemodelisusedasrepresentativeforillustrationpurposes.Pleasereferto
yourrespectivemodelforfunctionavailability.
1) 35/6 digits 6000 counts
LCDdisplay
2)Pushbuttons forspecial
functions&features
3)SelectortoturnthePower
OnorOffandSelecta
function
4) InputJackfor10A(20Afor
30sec)currentfunction
5)InputJackforallfunctions
EXCEPT 10A current
function
6)Common (Ground
reference)InputJackforall
functions
7) AdditionalinputJackfor
PhaseRotationfunctiononly

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RMS(RootMeanSquare)isatermusedtodescribetheeffectiveorequivalentDCvalueof
anACsignal.TrueRMSist hetermwhichidentifiesaDMMthatresponds accuratelytothe
effectiveRMSvalueregardlessofthewaveformssuchas:square,sawtooth,triangle,pulse
trains,spikes,aswellasdistortedwaveformswiththepresenceofharmonics.Harmonics
maycause:
1)Overheatedtransformers,generatorsandmotorstoburnoutfasterthannormal
2)Circuitbreakerstotripprematurely
3)Fusestoblow
4)Neutralstooverheatduetothetriplenharmonicspresentontheneutral
5)Busbarsandelectricalpanelstovibrate
CrestFactoristheratiooftheCrest(instantaneouspeak)valuetotheTrueRMSvalue,and
iscommonlyusedtodefinethedynamicrangeofaTrueRMSDMM.Apuresinusoidal
waveformhasaCrestFactorof1.414.Abadlydistortedsinusoidalwaveformnormallyhasa
muchhigherCrestFactor.
Beforeandafterhazardousvoltagemeasurements,testthevoltagefunctiononaknown
sourcesuchaslinevoltagetodeterminepropermeterfunctioning.

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automaticallyselectsmeasurementfunctionofDCVorACV,basedontheirinput
levelsviathetestleads.Theinputalsoprovidesalowramp upimpedance(LoZ)todrain
ghostvoltages*.

nasignalabovethevoltagethresholdof1VDCorACuptotherated1000Vis
present,themeterdisplaysthevoltagevalueinappropriateDCorAC,whicheverlargerin
peakmagnitude.
Note:
* Ghostvoltagesareunwantedstraysignal scoupledfromadjacent
hardsignals,whichconfusecommonmultimetervoltagemeasurements.The mode
provideslow(ramp up)inputimpedance(approx.2.1
voltagesleavingmainlyhardsignalvaluesonmeterreadings.Itisaninvaluablefeaturefor
preciseindicationofhardsignals,suchasdistinguishingbetweenhotandopenwires(to
ground)inelectricalinstallationapplications.
*Only , pushbuttonfeaturesareavailableinAutoVmode.

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mode inputimpedanceincreasesabruptlyfrom initial2.1
onhighvoltagehardsignals sersofbeinginsuch
lowimpedancemode.Peakinitialloadcurrent,whileprobing1000VACforexample,canbe
up to673mA (1000Vx1.414/2.1 ,decreasingabruptlytoapprox.2.4mA (1000V x 1.414
/ 580 Donotuse modeoncircuitsthatcouldbe
damaged by such low input impedance. Instead, use rotary selector or high input
impedancevoltagemodestominimizeloadingforsuchcircuits.
Press the buttonmomentarilytoselect the subjectfunctionsinsequence. Last
selectionwillbesavedaspowerupdefaultforrepeatmeasurementconvenience.
Note:
andtheassociated areequippedwithdigitallow passfilter(DSP),andare
capable of handling (Variable FrequencyDrives)signalsforfundamentalV&Hz
readings. ItalsoimprovesACVandHzreadingstabilitywhenbeingusedinmostnoisy
electricalenvironments.

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Pressthe pushbuttonmomentarilytotoggleH zfunction.ItisonlyavailabletoVoltage
andCurrentrelatedranges.
InputsensitivityvariesautomaticallywiththefunctionrangeselectedwhileactivatingtheHz
function.6Vfunctionrangehasthehighestandthe1000Vrangehasthelowest.When
activatedunderDCV,ACVorVFD ACV voltagefunction,thetriggervoltagerangewillbe
displayedrightbeforestartingtheHzreadings.Pressmomentarilythe buttoncan
manually select another trigger voltage range (not available to current ranges). It is
recommendedtofirstmeasurethesignalvoltage(orcurrent)levelandactivateHzfunction
inthatrangetogetthemostappropriatetriggerlevel.IftheHzreadingbecomesunstable,
selectlowersensitivitytoavoidelectricalnoise.Ifthereading showszero,selecthigher
sensitivity.
Press the buttonmomentarilytoselect the subjectfunctionsinsequence. Last
selectionwillbesavedaspowerupdefaultforrepeatmeasurementconvenience.

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function is having improved convenience for checking wiring
connections and operation of switches. A continuous beep tone together with flashing
display backlightindicateacompletewire.Suchaudibleandvisible indications improve
continuityreadabilitiesinnoisyworkingenvironments.
In function,thenormalforwardvoltagedrop(forwardbiased)foragoodsilicondiode
isbetween0.400Vto0.900V.A readinghigherthanthatindicatesaleakydiode(defective).
A zero reading indicates a shorted diode (defective). An OL indicates an open diode
(defective).Reversethetestleadsconnections(reversebiased)acrossthediode.Thedigital
displayshowsO Lifthediodeisgood.Anyotherreadingsindicatethediodeisresistiveor
shorted(defective).
Usingresistanceandcontinuityfunctioninalivecircuitwillproducefalseresultsandmay
damagetheinstrument.Inmanycasesthesuspectedcom ponentmustbedisconnected
fromthecircuittoobtainanaccuratereading.
Dischargecapacitorsbeforemakinganymeasurement.Largevaluecapacitorsshouldbe
dischargedthroughanappropriateresistanceload.
Press the buttonmomentarilytoselectthe subjectfunctionsinsequence. Last
selectionwillbesavedaspowerupdefaultforrepeatmeasurementconvenience.
Note:Besuretoinsertthebananaplugtype Ktemperaturebead probeBkp60withcorrect
polarities.YoucanalsouseaplugadapterBkb32(Optionalpurchase)withbanana
pinstotypeKsockettoadaptotherstandardtypeKminiplugtemperatureprobes.