Flir Dm92-nist User manual

USERMANUAL



FLIRMODELDM92



TrueRMSIndustrialMultimeter



FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AB

2

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

3.INTRODUCTION7

3.1KeyFeatures7

4.METERDESCRIPTION8

4.1MeterSections8

4.2FunctionSwitchPositions9

4.3FunctionButtons,SelectorPad,andRotarySwitch9

4.4DisplayDescription10

4.5DisplayIconsandIndicators10

5.OPERATION13

5.1PoweringtheMeter13

5.2Auto/ManualSelectMode13

5.3Auto/ManualRangeMode14

5.4VoltageMeasurements14

5.5ResistanceMeasurements14

5.6ContinuityTest15

5.7DiodeTest15

5.8CapacitanceMeasurements15

5.9TypeKTemperatureMeasurements16

5.10CurrentMeasurements16

5.11ExtendedFunctionality17

5.12NormalHoldModeandAutoHoldMode20

5.13LockedMode20

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AB

3

6.MAINTENANCE21

6.1CleaningandStorage21

6.2BatteryReplacement21

6.3FuseReplacement21

6.4DisposalofElectronicWaste21

7.SPECIFICATIONS22

7.1Generalspecifications22

7.2ElectricalRangeSpecifications23

8.TECHNICALSUPPORT28

9.WARRANTIES28

9.1FLIRGlobalLimitedLifetimeWarranty28

9.2FLIRTestandMeasurementLimited2YearWarranty29



FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AB

4

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.



FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AB

5

2. Safety



SafetyNotes



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



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_AB

6

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.



ULlistingisnotanindicationoraverificationoftheaccuracyofthemeter



FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AB

7

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_AB

8

1

24

3

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

1

2

6

7

8

3

4

9

5

10

11 14

13

12

FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AB

9

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_AB

10

Fig4‐3Displaysnapshot

4.4DisplayDescription



1

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_AB

11



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_AB

12

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_AB

13

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_AB

14

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_AB

15

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_AB

16

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_AB

17

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_AB

18

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.



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.



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.



dBanddBmaredefinedasfollows:

dB=20log(VAC/1).

dBm=20log(VAC/0.7746).



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.



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.



FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AB

19

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.



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.



FLIRDM92USERGUIDEDocumentIdentifier:DM92‐en‐US_AB

20

5.12NormalHoldModeandAutoHoldMode

Themeterhastwotypesofholdmodes:normalholdmodeandautoholdmode.



5.12.1NormalHoldMode

In Normal hold mode, the meter freezes and displays the last reading from the main display and

continues to display this value.

To enter/exit Normal hold mode, press the button. In Hold mode, the indicator is

displayed.

5.12.2AutoHoldMode

In Auto hold mode, the secondary display freezes the last reading from the main display and

continues to display this value. The current reading is displayed on the main display. The held

reading (on the secondary display) will not change unless the difference between this held

reading and any new reading is greater than 50 digits.

Auto hold limit:

Function switch in Vposition: < 0.1 V

Function switch in LoZ position: < 0.1 V

Function switch in mV position: < 1 mV

Function switch in other positions: no limit.

To enter/exit Auto hold mode, press the button. In Auto hold mode, the indicator is

displayed and flashing.

5.13LockedMode

InLockedmodethemeterignoresallbuttonpressesexcept .Theautopowerofffunction,

seesection5.1.1AutoPoweroff,isdisabledinLockedmode.



Pressandholdthebuttonfor3secondstoenter/exitLockedmode.InLockedmode,the

indicatorisdisplayed.



FLIR DM92-NIST User manual

Popular Multimeter manuals by other brands