Brymen BM230 Series User manual

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USER'S
MANUAL
Mìøící a dílenské pøístroje / Multimetry
uvádí:
BRYMEN BM235, BM233, BM231
BRIGHTPEOPLESCHOICE

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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spe cified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tha tcould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barrie rs(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.I f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abov e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
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distributionpartofthebuildin 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i ndustrial 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similarpoints)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for10A
(20Afor30sec)current
function
5)InputJackforall
functions EXCEPT A,
mA& Acurrent
functions
6)Common (Ground
reference)InputJackfor
allfunctions
7) Input Jackfor A and
mA currentfunction

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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 the 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*.
 .
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 signals coupled from
adjacenthardsignals,whichconfusecommonmultimetervoltagemeasurements. The
modeprovideslow(ramp up)inputimpedance(approx. 2.1
todrainghostvoltagesleavingmainlyhardsignalvaluesonmeterreadin gs.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 areavailable inAutoVmode.

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mode inputimpedanceincreasesabruptlyfrom initial 2.1
beinginsuchlowimpedancemode.Peakinitialloadcurrent,whileprobing1000VAC
forexample,canbeupto 673mA (1000Vx1.414/ 2.1 ,decreasinga bruptly 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 Hz 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u nstable,selectlowersensitivitytoavoidelectrical
noise.Ifthereadingshowszero,selecthighersensitivity.

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Press the buttonmomentarily totoggle the functions.Lastselection will be
savedaspowerup default forrepeatmeasurementconvenience.
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visibleindications improve
continuity readabilities innoisyworkingenvironments.
Usingresistanceandcontinuityfunctioninalivecircuitwillproducefalseresultsand
may damage the instrument. In many cases the suspected component must be
disconnectedfromthecircuittoobtainanaccuratereading

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Press the buttonmomentarily totoggle the functions.Lastselection will be
savedaspowerupdefault forrepeatmeasurementconvenience.
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i ndicates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OLifthediodeisgood.Anyotherreadingsindicate
thediodeisresistiveorshorted(defective).
Dischargecapacitorsbeforemakinganymeasurement.Largevaluecapacitorsshould
bedischargedthroughanappropriateresistanceload.

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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: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.

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Press buttonmomentarilyto togglebetween DCand AC Lastselection will
besavedaspowerupdefault forrepeatmeasurementconvenience.
functionis useful forHVAC/Rflamesensorapplications.The0.1 Aresolution
can identify the minute current changesinflamedetectorapplications.Flamesignal
currentcheckshouldindicatesteadyflamesignalofatleast2 Aforarectification
type,or1.5 Aforanultraviolettype(8 Aforselfcheckingsystems).Ifaflamesignal
currentwithinadequatestr engthorfluctuationbeyond10%,checkthefollowingto
avoidtheriskofunwantedflamerelaydropout:
Forgasoroilflames(Minipeeper):
Lowsupplyvoltage
Detectorlocation
Defectivedetectorwiring
Dirtyviewingwindows
FaultyMinipeeper
Foroilflames(Photocell):
Detectorlocation&wiring

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Smokyflameorpoorlyadjustedairshutter
FaultyPhotocell
Temperatureover165oF (74oC)atphotocell
Forgasflames(FlameRod):
Ignitioninterference(Aflamesignalcurrentdifferencewiththeignitionbo thonand
offgreaterthan0.5 Aindicatesthepresenceofignitioninterference)
Insufficientground(mustbeatleast4timesthedetectorarea)
Flameliftingoffburnerhead(ground),ornotcontinuouslyincontactwiththeflame
rod
Temperatureinexcessof600 oF(316 oC)attheflameelectrodeinsulatorcausing
shorttoground.

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Pressthe button momentarily totoggleEF Detectionfeature.T hemeterdisplays
Ifitistoosensitiveforyourap plications,press button
momentarilytogglesto lower sensitivity . ThedetectedElectricField strengthis
indicatedasaseriesofbargraphsegmentsonthedisplayplusvariablebeeptones.
:Anantennaisloca tedalongthetop left end of the
meter,whichdetectselectricfieldsurround ing energized live conductors.Itisidealfor
tracinglivewiringconnections,locatingwiringbreakage s andtodistinguishbetween
live and earthconnections.
:Formorepreciseindicationoflivewires,suchas
distinguishing between Live and Ground connections, usedirectcontacttestingwith
onesingletestprobevia the inputterminal COMorV.TheCOMterminal(Black)has
thebestsensitivity.

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Press buttonmomentarilytoactivateMAX/MIN /AVG recordingmode.TheLCD
AVG turn on. The meter beeps when new MAX (maximum) or MIN
(minimum) readingisupdated.PressthebuttonmomentarilytoreadtheMAX , MIN,
AVG readings in sequence. Press the button for 1 second or more to exit
MAX/MIN/AVG recording mode.Autorangingremains,and AutoPowerOff is disabled
automaticallyinthismode.
Press the buttonfor1secondormoreto toggle the LCD backlight. The
backlightwillalsobeturnedoffautomaticallyafter10minutes toextendbatterylife.
The holdfeature freezesthedisplayforlaterview.Pressthe button momentarily
to toggle the holdfeature.
Relative Zeroallowstheusertooffsetthemeterconsecutivemeasurementswiththe
displayingreadingasthereferencevalue.Practicallyalldisplayingreadingscanbeset
asrelativereferencevalueincludingMAX/ MIN/AVG featurereadings.Pressthe
button foronesecondormoreto toggle Relative Zeromode.

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For most autoranging functions (LCD turns on by default), press the
buttonmomentarilytoselectmanual ranging override. Themeterwillremaininthe
rangeitwasin,theLCD turnsoff. Pressthebuttonmomentarilyaga into select
the next range. Pressandholdthebuttonfor1se condormoretoresumeauto 
ranging.
Note:Manualrangingfeatureisnotavailableto AutoV,Capacitance & Hzfunctions.
tothemeterduetoimproperconnectionstothe A,mA,orAinputjackswhenanother
function, especiallyavoltagefunction, isselected.
The AutoPoweroff (APO)modeturnsthemeteroffautomaticallytoextendbatterylife
after approximately32 minutesofnospecifiedactivities,whereapplicable:
1) Rotaryswitchorpushbuttonoperations
2) Significantmeasuringreadingsofabove8.5%ofranges
3) NonOLreadings for Resistance,ContinuityorDiodefunction
4) NonzeroreadingsforHzfunction
5) ElectricfieldsignalpresentforEFfunction
6) Significant movementindicationasinPhaseRotationfunctions
In otherwords,themeterwillintelligentlyavoidenteringtheAPOmodewhenitis
undernormalmeasurements. TowakeupthemeterfromAPO,pressthe
button momentarily and release, orturnthe rotary switchOFFandthenbackon.
Alwaysturntherotary switchtotheOFFpositionwhenthemeterisnotinuse
Toavoidelectricalshock,disconnectthemeterfromanycircuit,removethetestleads
fromtheinputjacksandturnOFFthemeterbeforeopeningthecase.Donotoperate
withopencase.Installonlythesametypeoffuse(s) orequivalent
Periodicallywipethecasewithadampclothandmilddetergent;donotuseabrasives
orsolvents.Ifthemeterisnottobeusedforperiodsoflongerthan60days,r emove
thebatteryandstoreitseparately

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Iftheinstrumentfailstooperate,checkbattery,fuses,leads,etc.,andreplaceas
1.5V AAASizebattery x 2
for AmAcurrentinput:
0.4A/1000V DC/AC, IR
30kA F fuse or better;
Dimension:6x32mm
forAcurrentinput:
11A/1000V DC/AC, IR 20kA F
fuse or better;Dimension:10x
38mm
Loosen the screw from the
access cover ofthecasebottom.
Lift the access cover. Replace
thebatteriesorfuse(s).Refasten
thescrew.
35/6digits6,000counts
5persecondnominal
10oC to45oC
Maximum relative humidity 80% for temperature up to 31oC
decreasinglinearlyto50%relativehumidityat45oC
Operating below2000m
20oC~60oC,<80%R.H.(withbatteryremoved)
Nominal0.15x(specifiedaccuracy)/oC@(10oC~18oC or
28oC ~45oC),orotherwisespecified
True RMSsensing
IP40

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2
Certified per IEC/UL/EN610101 Ed. 3.0, IEC/UL/EN610102030 Ed. 1.0,
IEC/UL/EN610102033Ed.1.0,IEC/UL/EN61010 031Ed.1.1andthecorresponding
CAN/CSAC22.2regulationsto Measurement Categories:
CATII1000V,CATIII600VandCATIV300VAC&DC
6.0kV(1.2/50 ssurge)
MeetsEN613261:2013
In anRFfieldof3V/m:
Temperature functionisnotspecified
Ohm function:
TotalAccuracy=SpecifiedAccuracy+15 digits
Otherfunctions:
TotalAccuracy=SpecifiedAccuracy
Performanceabove3V/misnotspecified
0.4A/1000VDC/AC rms,IR30kA, Ffuseorbetter
11A/1000VDC/AC rms, IR 20kA, Ffuseorbetter
1100VDC/ACrms
1000VDC/ACrms
Below approx.2.5V
1.5VAAASizebatteryX2
3.2mA
10 A
Idle for30 minutes
161*80*50mmL*W*H(WithHolster)
Approx. 334 gm (WithHolster)
AutoV (LoZ) (Model235only); VFD; BeepLitTM Continuity; Auto
rangingMAX/MIN /AVG Record; Backlighted LCD;Auto rangingRelativeZeromode;
DisplayHold; EFDetection (NCV); AmA/Aterminals
Testleadpair; Batteriesinstalled; U ; BKP60bananaplugtype K
thermocouple (Model235 only)
BKB32 banana plug to typeK socket plug adaptor
(Model235only);BMH01magnetichanger;BMP25xsoftcarryingpouch
Accuracyisgivenas (%ofreadingdigits+numberofdigits)orotherwisespecified@
23oC 5oC

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ACV&ACAaccuraciesarespecifiedfrom 1 %to100%ofrangeorotherwise
specified. MaximumCrestFactor< 2:1atfullscale&< 4:1athalfscale,andwith
frequencycomponentsfallwithinthemeterspecifiedfrequencybandwidthfornon 
sinusoidalwaveforms
6.000V 1),60.00V,600.0V,1000V 0.7% + 3d
6.000V 1),60.00V,600.0V,1000V 2.0% + 3d
InputImpedance:10M , 54pF nominal
1)<5dnonzeroresiduemayappearwhenbacklightison,whichwillnotaffect the
specifiedmeasuringrangeandaccuracy
60.00mV 1)2),600.0mV 3) 1.0% + 3d
60.00mV 1)2),600.0mV 3) 2.0% + 3d
InputImpedance:10M , 54pFnominal
1)<5dnonzeroresiduemayappearwhenbacklightison,whichwillnotaffectthe
specifiedmeasuringrangeandaccuracy
2)Signalpeakabsolutevalues,includingDC bias, lessthan130mVpeak
3)Signalpeakabsolutevalues,includingDC bias, lessthan1300mVpeak
(
600.0V, 1000V 1.0% + 3d
(
600.0V,1000V 10% + 3d 2)
1)Not specifiedforfundamentalfrequency>400Hz
2)Accuracylinearlydecreasesfrom1% +3d@100Hz to10% +3d@400Hz

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600.0V, 1000V 2.0% + 3d
1)Notspecifiedat<1VAC
Threshold:>1VACnominal
Approximateinputimpedance(//164pF)forreference:
Atdirectinput 50Vac(typical)fromquiescence:
>8M @< 5.6Vac
22k @ 7Vac
12k @ 8Vac
2.6k @50Vac
Atdirectinput>>50V(typical)fromquiescence:
Initialimpedanceisapproximately2.3k .Impedanceincreasesabruptlywithina
fractionofasecondasdisplayvoltage(hardsignal)ismuchhigherthan50V
(typical).Endupimpedancesvsdisplayvoltagestypicallyare:
12k @100V
100k @300V
240k @600V
580k @1000V
60.00mV,600.0mV, 6.000V 0.3% + 2d
60.00V 0.4% + 2d
600.0V 0.2% + 2d
1000V 0.4% + 2d
InputImpedance:10M ,54pF nominal
600.0V,1000V 2.0% + 3d
1)Notspecifiedat<1VDC
Threshold:>+1.0VDCor<1.0VDCnominal
Approximateinputimpedance(//164pF)forreference:
Atdirectinput 50Vdc(typical)fromquiescence: