FLIR DM92 User manual

USERMANUAL
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FLIRMODELDM92
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TrueRMSIndustrialMultimeter
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FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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TableofContents
1.DISCLAIMERS4
1.1Copyright4
1.2QualityAssurance4
1.3Documentation4
1.4DisposalofElectronicWaste4
2.SAFETY5
2.1FCCCompliance6
2.2IndustryCanadaCompliance7
3.INTRODUCTION8
3.1KeyFeatures8
4.METERDESCRIPTION9
4.1MeterSections9
4.2FunctionSwitchPositions10
4.3FunctionButtons,SelectorPad,andRotarySwitch10
4.4DisplayDescription11
4.5DisplayIconsandIndicators11
5.OPERATION14
5.1PoweringtheMeter14
5.2Auto/Manualselectmode14
5.3Auto/ManualRangeMode15
5.4VoltageMeasurements15
5.5ResistanceMeasurements15
5.6ContinuityTest16
5.7DiodeTest16
5.8CapacitanceMeasurements16
5.9TypeKTemperatureMeasurements17
5.10CurrentMeasurements17
5.11ExtendedFunctionality18
5.12NormalHoldModeandAutoHoldMode21
5.13LockedMode21

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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6.MAINTENANCE22
6.1CleaningandStorage22
6.2BatteryReplacement22
6.3FuseReplacement22
6.4DisposalofElectronicWaste22
7.SPECIFICATIONS23
7.1Generalspecifications23
7.2ElectricalRangeSpecifications24
8.TECHNICALSUPPORT29
9.WARRANTIES29
9.1FLIRGlobalLimitedLifetimeWarranty29
9.2FLIRTestandMeasurementLimited2YearWarranty30
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FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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1. Disclaimers
1.1Copyright
©2014,FLIRSystems,Inc.Allrightsreservedworldwide.Nopartsofthesoftwareincludingsource
codemaybereproduced,transmitted,transcribedortranslatedintoanylanguageorcomputer
languageinanyformorbyanymeans,electronic,magnetic,optical,manualorotherwise,without
thepriorwrittenpermissionofFLIRSystems.
Thedocumentationmustnot,inwholeorpart,becopied,photocopied,reproduced,translatedor
transmittedtoanyelectronicmediumormachinereadableformwithoutpriorconsent,inwriting,
fromFLIRSystems.
Namesandmarksappearingontheproductshereinareeitherregisteredtrademarksor
trademarksofFLIRSystemsand/oritssubsidiaries.Allothertrademarks,tradenamesorcompany
namesreferencedhereinareusedforidentificationonlyandarethepropertyoftheirrespective
owners.
1.2QualityAssurance
TheQualityManagementSystemunderwhichtheseproductsaredevelopedandmanufactured
hasbeencertifiedinaccordancewiththeISO9001standard.
FLIRSystemsiscommittedtoapolicyofcontinuousdevelopment;thereforewereservetheright
tomakechangesandimprovementsonanyoftheproductswithoutpriornotice.
1.3Documentation
Toaccessthelatestmanualsandnotifications,gototheDownloadtabat:http://support.flir.com.
Itonlytakesafewminutestoregisteronline.Inthedownloadareayouwillalsofindthelatest
releasesofmanualsforourotherproducts,aswellasmanualsforourhistoricalandobsolete
products.
1.4DisposalofElectronicWaste
Aswithmostelectronicproducts,thisequipmentmustbedisposedofinan
environmentallyfriendlyway,andinaccordancewithexistingregulationsfor
electronicwaste.
PleasecontactyourFLIRSystemsrepresentativeformoredetails.
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FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
5
2. Safety
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SafetyNotes
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Beforeoperatingthedevice,youmustread,understand,andfollowallinstructions,dangers,
warnings,cautions,andnotes.
FLIRSystemsreservestherighttodiscontinuemodels,partsoraccessories,andotheritems,orto
changespecificationsatanytimewithoutpriornotice.
Removethebatteriesifthedeviceisnotusedforanextendedperiodoftime.
WarningStatements
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Donotoperatethedeviceifyoudonothavethecorrectknowledge.Formalqualificationsand/or
nationallegislationfortheelectricalinspectionscanapply.Incorrectoperationofthedevicecan
causedamage,shock,injuryordeathtopersons.
Donotstartthemeasuringprocedurebeforeyouhavesetthefunctionswitchtothecorrect
position.Thiscancausedamagetotheinstrumentandcancauseinjurytopersons.
Donotchangetoresistancewhenyoumeasurethevoltage.Thiscancausedamagetothe
instrumentandcancauseinjurytopersons.
Donotmeasurethecurrentonacircuitwhenthevoltageincreasestomorethan1000V.Thiscan
causedamagetotheinstrumentandcancauseinjurytopersons.
Youmustdisconnectthetestleadsfromthecircuitthatyoudidatestonbeforeyouchangethe
range.Ifyoudonotdothis,damagetotheinstrumentandinjurytopersonscanoccur.
Donotreplacethebatteriesbeforeyouremovethetestleads.Thiscancausedamagetothe
instrumentandcancauseinjurytopersons.
Donotusethedeviceifthetestleadsand/orthedeviceshowsignsofdamage.Injurytopersons
canoccur.
Becarefulwhenyoudothemeasurementsifthevoltagesaremorethan25VACrmsor35VDC.
Thereisariskofshockfromthesevoltages.Injurytopersonscanoccur.
Donotdodiode,resistanceorcontinuitytestsbeforeyouhaveremovedthepowerfrom
capacitorsandotherdevicesundertestduringameasurement.Injurytopersonscanoccur.
Donotusethedeviceasatooltoidentifyliveterminals.Youmustusethecorrecttools.Injuryto
personscanoccurifyoudonotusethecorrecttools.
Makesurethatchildrencannottouchthedevice.Thedevicecontainsdangerousobjectsandsmall
partsthatchildrencanswallow.Ifachildswallowsanobjectorapart,speakwithaphysician
immediately.Injurytopersonscanoccur.
Donotletchildrenplaywiththebatteriesand/orthepackingmaterial.Thesecanbedangerous
forchildreniftheyusethemastoys.
Donottouchexpiredordamagedbatterieswithoutgloves.Injurytopersonscanoccur.
Donotcauseashort‐circuitofthebatteries.Thiscancausedamagetotheinstrumentandcan
causeinjurytopersons.
Donotputthebatteriesintoafire.Injurytopersonscanoccur.

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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Cautions
Donotusethedeviceforaprocedurethatitisnotmadefor.Thiscancausedamagetothe
protection.
Thissymbol,adjacenttoanothersymbolorterminal,indicatesthattheuser
mustrefertothemanualforfurtherinformation.
Thissymbol,adjacenttoaterminal,indicatesthat,undernormaluse,
hazardousvoltagesmaybepresent.
Doubleinsulation.
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ULlistingisnotanindicationoraverificationoftheaccuracyofthemeter
2.1FCCCompliance
Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothefollowingtwo
conditions:

1. Thisdevicemaynotcauseharmfulinterference.
2. Thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycause
undesiredoperation.
ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,
pursuanttopart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotection
againstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates,uses,andcan
radiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,
maycauseharmfulinterferencetoradiocommunications.However,thereisnoguaranteethat
interferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmful
interferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipment
offandon,theuserisencouragedtotrytocorrecttheinterferencebyoneormoreofthe
followingmeasures:
1. Reorientorrelocatethereceivingantenna.
2. Increasetheseparationbetweentheequipmentandreceiver.
3. Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiveris
connected.
4. Consultthedealeroranexperiencedradio/TVtechnicianforhelp.


FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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CAUTION
ExposuretoRadioFrequencyRadiation.
TocomplywithFCC/ICRFexposurecompliancerequirements,aseparationdistanceofat
least20cmmustbemaintainedbetweentheantennaofthedeviceandallpersons.This
devicemustnotbeco‐locatedoroperatinginconjunctionwithanyotherantennaor
transmitter.
WARNING
Changesormodificationsnotexpresslyapprovedbythepartyresponsibleforcompliance
couldvoidtheuser'sauthoritytooperatetheequipment.

2.2IndustryCanadaCompliance
Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothefollowingtwo
conditions:
ThisdevicecomplieswithIndustryCanadalicense‐exemptRSSstandard(s).Operationissubjectto
thefollowingtwoconditions:(1)thisdevicemaynotcauseinterference,and(2)thisdevicemust
acceptanyinterference,includinginterferencethatmaycauseundesiredoperationofthedevice.
CAUTION
ExposuretoRadioFrequencyRadiation.
TocomplywithRSS102RFexposurecompliancerequirements,formobileconfigurations,
aseparationdistanceofatleast20cmmustbemaintainedbetweentheantennaofthis
deviceandallpersons.Thisdevicemustnotbeco‐locatedoroperatinginconjunctionwith
anyotherantennaortransmitter.


FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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3. Introduction
ThankyouforselectingtheFLIRDM92DigitalMultiMeter.

Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,willprovideyearsofreliable
service.

3.1KeyFeatures


4000/40000countsextra‐largedigitaldualdisplay.
AutoselectionAC/DCinvoltageandcurrentmodes.
On‐screenmenuselectionandnavigatorkeydrive
Variable‐frequencydrivemode(low‐passfilter).
0.05%DCVaccuracy.
Low‐Zmeasurement.
Autohold.
Peakholdmeasurement.
dB/dBmmeasurement.
99‐recordmanualdatarecord/recallmemory.
Indooruseonly;6561’(2000m).
SafetyCategoryRating:CATIV‐600V,CATIII‐1000V.


FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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4. MeterDescription

4.1MeterSections
1. CourtesyWorkLights
2. LCDDisplay
3. MODEButton
4. RANGEButton
5. BacklightButton
6. FunctionButtons(detailedbelow)
7. EXITButton
8. HOLD/LockButton
9. WorkLightButton
10. RotaryFunctionSwitch
11. Positive(+)ProbeInputJackforA(Current).
12. Positive(+)ProbeInputJackformA(Current).
13. COM(negative‐)ProbeInputJack
14. Positive(+)ProbeInputJackforV,mV,Ω,and
LoZandTemperature











1. CourtesyWorkLights
2. TestProbeHolders
3. TiltStand
4. BatteryCompartmentCover
Fig4‐1FrontView
Fig4‐2RearView
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7
8
3
4
9
5
10
11 14
13
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FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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4.2FunctionSwitchPositions
LoZThemetercanmeasurevoltagethroughtheprobeinputs.Alow‐impedance
loadisplacedacrosstheinputstostabilizethemeasurement.
OFF ThemeterisswitchedOFFandinfullpower‐savingmode.
Themetercanmeasurevoltage(V)throughtheprobeinputs.
Themetercanmeasurelowvoltage(mV)throughtheprobeinputs.
Themetercanmeasureresistance,continuity,ordiodepolaritythroughthe
probeinputs.ThetypeofmeasurementisselectedbytheMODEbutton.
Themetercanmeasurecapacitancethroughtheprobeinputsor
temperaturethroughathermocoupleadapter.Thetypeofmeasurementis
selectedbytheMODEbutton.
Themetercanmeasurecurrentthroughtheprobeinputs.
4.3FunctionButtons,SelectorPad,andRotarySwitch
UsethisbuttontoselectAutoselectorManualselectmode,seesection5.2
Auto/Manualselectmode.
Inmanualselectmode,pressthebuttontochangetheoperatingmode.
UsethisbuttontoselectAutorangeorManualrangemode,seesection5.3
Auto/Manualrangemode.
InManualrangemode,pressthebuttontochangetherange(scale).
PressthebuttontotogglebetweenNormalandHoldmode,seesection
5.12NormalholdmodeandAutoholdmode.
Pressandholdthebuttonfor5secondstoenable/disableLockedmode,
seesection5.13Lockedmode.

Usethisselectorpadtoenableextendedfunctionalitymodesandtonavigate
inmodeoptions.
Pressthisbuttontoexitanextendedfunctionalitymode.
Pressthisbuttontoenable/disablethedisplaybacklight.
Pressthisbuttontoenable/disabletheworklights.

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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Fig4‐3Displaysnapshot
4.4DisplayDescription

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2
3
4
5


1. ModeandStatusicons
2. SecondaryDisplay
3. MainDisplay
4. Advancedfunctionicons
5. Bargraph(matchesthereadingonthemaindisplay)

4.5DisplayIconsandIndicators
Indicatesthatthemeterismeasuringstabilizedvoltage.
Indicatesthatthemeasuredvoltageisgreaterthan30V(ACorDC).
IndicatesthattheAutoselectmodeisactive.

Indicatesthatthemeterisdisplayingmaximumreadingvalues.

Indicatesthatthemeterisdisplayingminimumreadingvalues.

Indicatesthatthemeterisdisplayingtheaveragereading.

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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
Indicatesthatthemeterisdisplayingpeakmaximumvalues.

Indicatesthatthemeterisdisplayingpeakminimumvalues.

IndicatesthatthemeterisinAutorangemode.
IndicatesthatthemeterisinHoldmode.

IndicatesthatthemeterisinLockedmode.

Indicatestheactivememorylocation(1‐99).
Indicatesthebatteryvoltagestatus.
Indicatesthattheautopowerofffunctionisenabled.
IndicatesthatthemeterismeasuringACcurrentorvoltage.
IndicatesthatthemeterismeasuringDCcurrentorvoltage.
IndicatesthatthemeterismeasuringAC+DCcurrentorvoltage.
Indicatesthatthecontinuityfunctionisactive.
Indicatesthatthediodetestfunctionisactive.

VFDmodeicon.
Peakmodeicon.
Min/Max/Avgmodeicon.
Frequencymodeicon.

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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Relativemodeicon.

4000/40000digitselection.

dBmmodeicon.

99‐pointManualDataRecordingmodeicon.

Setupmodeicon.
Silentmodeicon.
4.5.1ProbeIndicator
Whentheprobeleadsarenotpluggedintothecorrectjacksocketsforthemeasurementselected
bythefunctionswitch,PROBEisdisplayed.

4.5.2Out‐of‐rangewarning
Iftheinputisover/underthefull‐scalerangeinManualrangemode,orifthesignalhasexceeded
themaximum/minimuminputinAutorangemode,OLisdisplayed.

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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5. Operation
Note:Beforeoperatingthedevice,youmustread,understand,andfollowallinstructions,dangers,
warnings,cautions,andnotes.
Note:Whenthemeterisnotinuse,thefunctionswitchshouldbesettotheOFFposition.
Note:Whenconnectingtheprobeleadstothedeviceundertest,connecttheCOM(negative)lead
beforeconnectingthepositivelead.Whenremovingtheprobeleads,removethepositivelead
beforeremovingtheCOM(negative)lead.
5.1PoweringtheMeter
1.Setthefunctionswitchtoanypositiontoswitchonthemeter.
2.Ifthebatteryindicator showsthatthebatteryvoltageisloworifthemeterdoesnotpower
on,replacethebattery.Seesection6.2BatteryReplacement.

5.1.1AutoPowerOff
Themeterenterssleepmodeafteraprogrammablenumberofminutesofinactivity,see
section5.11.9Setupmode.
Themeterbeepsthreetimes10secondsbeforepoweringoff.Pressanybuttonorturnthe
RotarySwitchtopreventthemeterfrompoweringoff.Theautopowerofftime‐outisthen
reset.
5.2Auto/ManualSelectMode
InAutoselectmode,themeterattemptstoautomaticallyselecttheproperoperatingmodebased
ontheinputsignal:
Ifthefunctionswitchissettothe ,,,or position,themeterattemptstodetermineif
theACorDCmodeshouldbeused.
Autoselectmodeisthedefaultmodeofoperation.Whenanewfunctionisselectedwiththe
functionswitch,thestartingmodeisAutoselectandthe indicatorisdisplayed.
ToenterManualselectmode,pressthebutton.Tomanuallyselecttheoperatingmode,
pressthebuttonrepeatedly.
ToenterAutoselectmode,pressandholdthebuttonuntilthe indicatorisdisplayed.
Note:NotethattheDM92DataRecordingfeaturecannotbeusedwhenthemeterisintheAuto
SelectMode.TousetheDataRecorderpleasesetthemetertotheManualSelectmodefirst.





FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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5.3Auto/ManualRangeMode
InAutorangemode,themeterautomaticallyselectsthemostappropriatemeasurementscale.In
Manualrangemode,thedesiredrange(scale)issetmanually.

Autorangemodeisthedefaultmodeofoperation.Whenanewfunctionisselectedwiththe
functionswitch,thestartingmodeisAutorangeandtheindicatorisdisplayed.

ToenterManualrangemode,pressthe button.Tochangetherange,pressthe button
repeatedlyuntilthedesiredrangeisdisplayed.

ToenterAutorangemode,pressandholdthe buttonuntilthe indicatorisdisplayed.
5.4VoltageMeasurements
1. Setthefunctionswitchtooneofthefollowingpositions:
for high voltage measurements.
forlowvoltagemeasurements.
forvoltagemeasurementsusingthemeter’slowinputimpedancemode.The
indicatorisdisplayed.

2. InserttheblackprobeleadintothenegativeCOMterminalandtheredprobeleadintothe
positiveterminal.

3. UsethebuttontoselectAC,DC,orAC+DCvoltagemeasurement.
TheindicatorwillbedisplayedforACmeasurements.
TheindicatorwillbedisplayedforDCmeasurements.
TheindicatorwillbedisplayedforAC+DCmeasurements.

4. Connecttheprobeleadsinparalleltothepartundertest.

5. Readthevoltagevalueonthedisplay.

5.5ResistanceMeasurements
Warning:Donotdodiode,resistanceorcontinuitytestsbeforeyouhaveremovedthepowerfrom
capacitorsandotherdevicesundertestduringameasurement.Injurytopersonscanoccur.

1. Setthefunctionswitchtotheposition.
2. Ensurethatthemeterissettoresistancemeasurement.TheΩunitwillbedisplayed.

Iftheorindictorisdisplayed,pressthe buttonrepeatedlyuntiltheΩunitis
displayed.
3. InserttheblackprobeleadintothenegativeCOMterminalandtheredprobeleadintothe
positive terminal.
4. Touchthetipsoftheprobeacrossthecircuitorcomponentundertest.
5. Readtheresistancevalueonthedisplay.

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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5.6ContinuityTest
Warning:Donotdodiode,resistanceorcontinuitytestsbeforeremovingthepowerfrom
capacitorsandotherdevicesundertestduringameasurement.Injurytopersonscanoccur.

1. Setthefunctionswitchtotheposition.
2. Usethebuttontoselectcontinuitymeasurement.Theindicatorwillbedisplayed.
3. InserttheblackprobeleadintothenegativeCOMterminalandtheredprobeleadintothe
positiveterminal.
4. Touchthetipsoftheprobeacrossthecircuitorcomponentundertest.
5. Iftheresistanceis30±5Ω(nominal)orless,themeterbeeps.

Note:ThisthresholdisuserselectableintheSETUPmenuundertheCntin(continuity)setting:
Range:10‐50Ω;Increment:1;Default:30Ω.
5.7DiodeTest
Warning:Donotdodiode,resistanceorcontinuitytestsbeforeyouhaveremovedthepowerfrom
capacitorsandotherdevicesundertestduringameasurement.Injurytopersonscanoccur.

1. Setthefunctionswitchtothe position.
2. Usethebuttontoselectthediodetestfunction.The indicatorwillbedisplayed.
3. InserttheblackprobeleadintothenegativeCOMterminalandtheredprobeleadintothe
positive terminal.
4. Touchthetipsoftheprobeacrossthediodeorsemiconductorjunctionundertest.Makea
noteofthevalueonthedisplay.
5. Reversethepolarityoftheprobes,byinterchangingtheprobetestlocations.
6. Touchthetipsoftheprobeacrossthediodeorsemiconductorjunctionundertest.Makea
noteofthenewvalueonthedisplay
7. Thediodeorsemiconductorjunctioncanbeevaluatedasfollows:
Ifoneofthereadingsdisplaysavalue(typically0.400Vor0.900V)andtheotherreading
displaysOL,thecomponentisgood.
IfbothreadingsdisplayOL,thecomponentisopen.
Ifbothreadingsareverysmallor0,thecomponentisshorted.

5.8CapacitanceMeasurements
Warning:Donotdocapacitancetestsbeforeremovingthepowertothecapacitororotherdevices
undertestduringameasurement.Injurytopersonscanoccur.
1. Setthefunctionswitchtotheposition.
2. Usethebuttontoselectthecapacitancemeasurement.TheF(Farad)unitwillbe
displayed.
3. InserttheblackprobeleadintothenegativeCOMterminalandtheredprobeleadintothe
positive terminal.
4. Touchthetipsoftheprobeacrossthepartundertest.

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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5. Readthecapacitancevalueonthedisplay.

Note:Forverylargecapacitancevalues,itmaytakeseveralminutesforthemeasurementto
settleandthefinalreadingtostabilize.

5.9TypeKTemperatureMeasurements
1. Setthefunctiontothe position.
2. Usethebuttontoselecttemperaturemeasurement.The°For°Cunitwillbedisplayed.
3. Whileobservingthepolarity,insertthethermocoupleadapterintothenegativeCOMterminal
andthepositiveterminal.
4. Touchthetipofthethermocoupletothepartundertest.Keepthethermocoupletiponthe
partuntilthereadingonthedisplaystabilizes.
5. Readthetemperaturevalueonthedisplay.
6. Toavoidelectricalshock,disconnectthethermocoupleadapterbeforeturningthefunction
switchtoanotherposition.

5.10CurrentMeasurements
Currentismeasuredbydisconnectingthepartundertestandconnectingtheprobeleadsinseries
withthepart,seeFigure5.1.

Figure5.1Disconnectedcomponent

1. Setthefunctionswitchtothe position.
2. InserttheblackprobeleadintothenegativeCOMterminalandtheredprobeleadintooneof
thefollowingpositiveterminals:
Aforhighcurrentmeasurements.
mAforlowcurrentmeasurements.
3. UsethebuttontoselectAC,DC,orAC+DCvoltagemeasurement.
TheindicatorwillbedisplayedforACmeasurements.
TheindicatorwillbedisplayedforDCmeasurements.
TheindicatorwillbedisplayedforAC+DCmeasurements.
4. ConnecttheprobeleadsinserieswiththepartinaccordancewithFigure5.1.
5. Readthecurrentvalueonthedisplay.


FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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5.11ExtendedFunctionality
Inadditiontothebasicmeasurements,themetercanbesettodifferentmodesforextended
functionality.
5.11.1SelectingtheMode
Themodeiconsapplicablefortheselectedmeasurementtypearedisplayedinthelowerpart
ofthedisplay.Whenamodeisenabled,theiconisframed.

Figure5.2Modeicons(ACvoltagemeasurements):PeakmodeandSilentmodeareenabled.
1. Presstheorbuttontonavigatetothedesiredmodeicon.Thecurrentlyselected
iconwillflash.
2. Pressthebuttontoenabletheselected(flashing)mode.
3. Usethe or buttonstostepthroughthemodeoptions.Refertothesection
relatedtothespecificmodefordetailedinstructions.
4. Pressthe buttontodisabletheselected(flashing)mode.

5.11.2VFDMode(ACVandACAonly)
InVFD(variable‐frequencydrive)mode,high‐frequencynoiseiseliminatedfromthevoltage
measurementthroughtheuseofalow‐passfilter.VFDmodeisavailablewhenmeasuringAC
voltageorACcurrent.
1. Select andenableVFDmodeasdescribedinsection5.11.1SelectingtheMode.

5.11.3PeakMode(ACVandACAonly)
InPeakmode,themetercapturesanddisplaysthepositiveandnegativepeakvalues,and
updatesonlywhenahigher/lowervalueisregistered.
1. Select andenablePeakmodeasdescribedsection5.11.1SelectingtheMode.
2. Pressthe or buttontotogglebetweenthedisplayofPeakMaxandPeakMin.
InPeakMaxmode,theindicatorisdisplayed.
InPeakMinmode,theindicatorisdisplayed.
1. Pressthe buttontopausethePeakmode.Pressagaintocontinue.

5.11.4Min/Max/AvgMode
InMin/Max/Avgmode,themetercapturesanddisplaystheminimumormaximumvaluesand
updatesonlywhenahigher/lowervalueisregistered.Themeteralsoaveragesthetotalsum
ofallrecordedvalues.

1. Select andenableMin/Max/Avgmodeasdescribedinsection5.11.1,Selecting
theMode.
2. Presstheor buttontocyclethroughtheminimum,maximum,andaverage
readingdisplays.Thecorrespondingiconsaredisplayed: , ,or 
3. PressthebuttontopausetheMin/Max/Avgmode.Pressagaintocontinue.

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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5.11.5Frequencymode(ACVandACAonly)
InFrequencymode,thefrequencyisdisplayedinthemaindisplayandtheperiodisdisplayed
inthesecondarydisplay.FrequencymodeisavailablewhenmeasuringACvoltageorcurrent.

1. Select andenableFrequencymodeasdescribedinsection5.11.1Selectingthemode.
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5.11.6Relativemode
In Relative mode, the difference between the current reading and a stored reference value is
displayed in the main display. The reference value is displayed in the secondary display.
1. Select andenableRelativemodeasdescribedinsection5.11.1Selectingthemode.
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5.11.7dBmMode(ACVonly)
Thedecibel(dB)isalogarithmicunitthatexpressesthemagnitudeofaphysicalquantity
relativetoaspecifiedorimpliedreferencelevel.IndBmmode,themeterdisplaysAC
voltagemeasurementsindBordBmonthesecondarydisplay.
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dBanddBmaredefinedasfollows:
dB=20log(VAC/1).
dBm=20log(VAC/0.7746).
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1. Select andenabledBmmodeasdescribedinsection5.11.1,Selectingthemode.
2. Pressthetheor buttontotogglebetweenthedisplayofdBanddBm.
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5.11.8ManualDataRecordingMode
Themeterhas99memorylocationsforthestorageofmeasurementdata.
1. Select andenableManualDataRecordingmode asdescribedinsection5.11.1
Selectingthemode.
2. Presstheor buttontocyclethroughthemodeoptions:SAVE,LOAD,andCLEAR
shownonthesecondarydisplay.
3. Pressthebuttontoactivatethedisplayedoption:
SAVE:Thedataonthemaindisplayissavedtoamemorylocationshownbythe
indicatorintheupperpartofthedisplay.
LOAD:Thedatastoredinthememorylocationshownbythe indicatoris
displayed.Usetheor buttontochangethememorylocation.Pressthe
buttontoexittheloadfunction.
CLEAR:Thedatainallmemorylocationsiserased.
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FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AA
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5.11.9SetupMode
InSetupmode,youcandefinethesettingsforvariousmeteroptions:
Autopoweroff(indicatedbythetextAPO):Amodewherethetimeperiodafter
whichthemeterenterssleepmodecanbeset.Therangeis1to30minutes,or
OFF.Thefactorydefaultis10minutes.
Autobacklightoff(indicatedbythetextb.Lit):Amodewherethetimeperiod
afterwhichthebacklightturnsoffcanbeset.Therangeis1to30minutes,or
OFF.Thefactorydefaultis5minutes.
Continuitythreshold(indicatedbythetextCntin):Amodewherethethreshold
forcontinuitytestscanbeset.
Autohold(indicatedbythetextA.Hold):SelectAutoholdmodeON(Autohold
modeactive)orOFF(Dataholdmodeactive).Formoreinformation,seesection
5.12NormalholdmodeandAutoholdmode.
1. Select andenableSetupmodeasdescribedinsection5.11.1Selectingthemode.
2. Usetheup/downarrowsbuttontocyclethroughthemodeoptionsAPO,b.Lit,Cntin,
A.Hold,andRESETshownonthesecondarydisplay.
3. Pressthebuttontoactivatethedisplayedoption.
APO:Usetheandbuttonstochangetheautopowerofftime.
b.Lit:Usethe andbuttonstochangetheautobacklightofftime.
A.Hold:Usethe andbuttonstoconfigureautohold/datahold.Onindicates
thattheautoholdmodeisactive.Offindicatesthatthedataholdmodeisactive.
Cntin:Usethe andbuttonstochangethecontinuitythreshold.
RESET:Pressthe buttontoresetthesettingstothefactorydefault.
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5.11.10SilentMode
InSilentmode,thealertbeeperisdisabled.Silentmodedoesnotaffectthecontinuitybeeper.

Select andenableSilentmodeasdescribedinsection5.11.1Selectingthemode.
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