Hioki LR8450 Instruction manual

LR8450
LR8450-01
Quick Start Manual
MEMORY HiLOGGER
Feb. 2020 Edition 1
LR8450A963-00 20-02H
Be sure to read this manual before using the instrument. p.6
When using the instrument for the rst time Troubleshooting
Introduction to Convenient Functionality p.14
Maintenance and Service
p.79
Part Names and Functions; Screens p.23 Error messages p.83
Making Connections (Preparing for Measurement)
p.37 FAQ p.91
Settings and Operation p.69
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i
3 Settings and Operation 69
3.1 CongurationProcess .........................70
3.2 BasicOperation ....................................71
Switchingamongthemaintabs.................71
Switchingamongthesubtabs...................71
Changingandacceptingsettings...............72
Startingandstoppingmeasurement ..........73
Savingdata ..............................................73
Resettingthesystem(initialization)............74
Keylock(disablingkeys)...........................74
4 Specications 75
4.1 MemoryHiLoggerBasic
Specications........................................75
4.2 Plug-inModuleSpecications ............76
U8550Voltage/TempUnit..........................76
U8551UniversalUnit ................................76
U8552Voltage/TempUnit..........................77
U8553HighSpeedVoltageUnit ................77
U8554StrainUnit .....................................78
5 Maintenance and
Service 79
5.1 Repairs,Inspections,and
Cleaning.................................................79
5.2 Troubleshooting ....................................81
Beforesendingtheinstrumenttobe
repaired....................................................81
Errormessages ........................................83
5.3 DisposingoftheInstrument ................90
5.4 FAQ
(FrequentlyAskedQuestions) ............91
5.5 Open-sourcesoftware .........................93
Index 95
Warranty
Contents
Introduction........................................................1
AbouttheNotationsUsedinThisManual.....2
CheckingPackageContents...........................4
Options(soldseparately) ............................5
Safety .................................................................6
OperatingPrecautions .....................................8
HowtoUseThisManual ...............................13
IntroductiontoConvenientFunctionality.....14
1 Overview 21
1.1 InstrumentOverviewand
Features.................................................21
1.2 PartNamesandFunctions;
Screens..................................................23
LR8450/LR8450-01MemoryHiLogger ......23
Plug-inmodules........................................29
Wirelessmodules .....................................30
1.3 Options...................................................32
Plug-inmodules........................................32
Wirelessmodules .....................................32
Otheroptions............................................33
1.4 MeasurementProcess.........................35
2 Making Connections
(Preparing for
Measurement) 37
2.1 ConnectingPlug-inModules...............38
2.2 InstallingaBatteryPack......................40
2.3 ConnectingtheACAdapter.................45
2.4 ConnectingtheCables ........................47
Pre-useinspection ....................................47
Connectingvoltagecablesand
thermocouples..........................................50
Connectingresistancebulbs .....................52
ConnectingtheHumiditySensor ...............53
Connectingaresistor ................................55
Connectingastraingageorstraingage-
typeconverter...........................................56
Connectingpulseinput..............................59
Connectingalarmoutput ...........................60
Connectingvoltageoutput.........................61
Connectingexternalcontrolsignals ...........63
2.5 TurningtheInstrumentOnandO󰀨 ....64
2.6 SDMemoryCardandUSBDrive ......65
InsertingandremovingSDMemory
Cards .......................................................67
InsertingandremovingUSBDrives ...........68
Index
LR8450A963-00

1
Introduction
Introduction
ThankyouforchoosingtheHiokiLR8450/LR8450-01MemoryHiLogger.Toensureyourabilityto
getthemostoutofthisinstrumentoverthelongterm,pleasereadthismanualcarefullyandkeepit
availableforfuturereference.
TheLR8450-01MemoryHiLoggeraddswirelessLANfunctionalitytotheLR8450.
HiokiplanstolaunchwirelessmodulesandaWirelessLANAdapterinthenearfuture.
Thisinstrumentcomeswiththefollowingdocumentation.Pleaserefertotheseresourcesas
necessaryinlightofyourspecicapplication.Pleasereviewtheseparate“OperatingPrecautions”
beforeusingtheinstrument.
Model Manual contents Printed
edition CD edition
OperatingPrecautions Informationtoensuresafeuseoftheinstrument –
PrecautionsConcerningUse
ofEquipmentThatEmits
RadioWaves
(LR8450-01only)
Precautionsrelatingtouseofequipmentthat
emitsradiowaves,countriesinwhichthe
instrumenthasbeencertied,etc.
–
QuickStartManual(this
manual)
Basicconnectionandoperatinginstructionsfor
theinstrument  
InstructionManual Detailedinformationabouttheinstrumentand
specications –
LoggerUtility*1
UserManual
Informationabouthowtoinstallandusethe
computerapplication –
Communications
Commands*2UserManual
Explanationofcommunicationscommandsfor
controllingtheinstrument –
*1:ForinformationabouthowtoinstallandusetheLoggerUtilitycomputerapplication,see“LoggerUtility
UserManual”ontheincludedCD(applicationdisc).
*2:TheinstrumentcanbecontrolledbyaLAN-orUSB-connectedcomputer.
Formoreinformationaboutthecommunicationscommandsusedtocontroltheinstrument,see
“CommunicationsCommandsUserManual”ontheincludedCD(applicationdisc).
Intended audience
Thismanualhasbeenwrittenforusebyindividualswhousetheproductorprovideinformation
abouthowtousetheproduct.
Inexplaininghowtousetheproduct,itassumeselectricalknowledge(equivalentoftheknowledge
possessedbyagraduateofanelectricalprogramatatechnicalhighschool).
Trademarks
•Microsoft,Windows,Excel,InternetExplorer,andVisualBasicaretheregisteredtrademarksor
trademarksofMicrosoftCorporationintheU.S.,Japan,andothercountries.
•SD,SDHCLogosaretrademarksofSD-3CLLC.
•Wi-Fi®isaregisteredtrademarkoftheWi-FiAlliance®.
•Otherproductsandcompanynamesaretradenames,registeredtrademarksortrademarksof
theirrespectiveowners.
Screen font
•ThetypefacesincludedhereinaresolelydevelopedbyDynaComwareTaiwanInc.

2
AbouttheNotationsUsedinThisManual
About the Notations Used in This Manual
Safety notations
Thismanualclassiesseriousnessofrisksandhazardlevelsasdescribedbelow.
DANGER Indicatesanimminentlyhazardoussituationthat,ifnotavoided,willresultin
deathoforseriousinjurytotheoperator.
WARNING Indicatesapotentiallyhazardoussituationthat,ifnotavoided,couldresultin
deathoforseriousinjurytotheoperator.
CAUTION Indicatesapotentiallyhazardoussituationthat,ifnotavoided,couldresultin
minorormoderateinjurytotheoperator.
NOTICE Indicatesthepossibilityofequipmentdamage.
IMPORTANT Indicatesinformationorcontentthatisparticularlyimportantfromthe
standpointofoperatingormaintainingtheinstrument.
Indicatesahigh-voltagehazard.Failuretoverifysafetyorimproperhandlingof
theinstrumentcouldleadtoelectricshock,burns,ordeath.
Indicatesanactionthatmustnotbeperformed.
Indicatesactionthatmustbeperformed.
Symbols on equipment
Indicatestheneedforcautionorthepresenceofahazard.Formoreinformation
aboutlocationswherethissymbolappearsoninstrumentcomponents,see“Operating
Precautions”(p. 8),warningmessageslistedatthebeginningofoperating
instructions,andthedocumententitled“OperatingPrecautions”thatcomeswiththe
instrument.
Indicatesaninstrumentthathasbeenprotectedthroughout.
Indicateswhetherthepowerisonoro󰀨.
Indicatesthegroundterminal.
Indicatesdirectcurrent(DC).
Indicatesalternatingcurrent(AC).

3
AbouttheNotationsUsedinThisManual
Notations related to standards compliance
IndicatescompliancewiththeWasteElectricalandElectronicEquipment(WEEE)
DirectiveinEUmembernations.
Li-ion
IndicatesthattheinstrumentistargetedforrecyclingundertheActonthePromotionof
E󰀨ectiveUtilizationofResources.
IndicatesthattheinstrumentcomplieswithstandardsimposedbyEUdirectives.
Other notations
Indicatesusefuladviceconcerninginstrumentperformanceandoperation.
*Instructsthereadertoseebelowforadditionalinformation.
Indicatesthedefaultsetting.Wheninitialized,theinstrumentwillreverttothisvalue.
(p.) Indicatesthepagenumbertoreference.
Bold Thenamesofcontrolkeysareprintedinbold.
[ ] Thenamesofuserinterfaceelementsonthescreenareenclosedinbrackets([]).
Windows Unlessotherwisenoted,theterm“Windows”isusedgenericallytorefertoWindows7,
Windows8,andWindows10.
S/s
Forthisinstrument,thenumberoftimestheanaloginputsignalisdigitizedisindicated
insamplespersecond(S/s).
Example:20Ms/s(20megasamplespersecond)signies20×106samplespersecond.
Accuracy
Hiokidenestolerancesformeasuredvaluesintermsoff.s.(fullscale),asindicatedbelow.
f.s.
Maximum display value, scale magnitude
Indicatesthemaximumdisplayvalueorscalemagnitude.Generallyspeaking,thef.s.
gureindicatestherangeincurrentuse.
Example:f.s.forthe1Vrange=1V

4
CheckingPackageContents
Checking Package Contents
Whenyoureceivetheinstrument,inspectittoensurethatnodamageoccurredduringshipment.
Payparticularattentiontoincludedaccessories,panelkeysandswitches,andterminals.Ifyou
ndanydamageordiscoverthattheinstrumentdoesnotperformasindicatedinitsspecications,
pleasecontactyourauthorizedHiokidistributororreseller.
Check to ensure proper package contents.
The instrument
LR8450/LR8450-01MemoryHiLogger
Accessories
Z1014ACAdapter(withpowercord)
See“2.3ConnectingtheACAdapter”(p. 45).


OperatingPrecautions(0990A903)
PrecautionsConcerningUseofEquipmentThatEmits
RadioWaves(0990A962)
(LR8450-01only)
QuickStartManual(thismanual)
LOGGERApplicationDisc(CD)*
•QuickStartManual
•InstructionManual
•LoggerUtility
•LoggerUtilityInstructionManual
•CommunicationsCommandsInstructionManual
USBcable
See“3.6AcquiringDatawithaComputer(PC)”inthe
InstructionManual.
*:ThemostrecentversionisavailablefordownloadfromHioki’swebsite.

5
CheckingPackageContents
Options (sold separately)
Theoptionslistedbelowareavailablefortheinstrument.Toorderanoption,pleasecontactyour
authorizedHiokidistributororreseller.Optionsaresubjecttochange.CheckHioki’swebsiteforthe
latestinformation.
U8550Voltage/TempUnit
U8551UniversalUnit
U8552Voltage/TempUnit
U8553HighSpeedVoltageUnit
U8554StrainUnit
LR8530WirelessVoltage/TempUnit(availablesoon)
LR8531WirelessUniversalUnit(availablesoon)
LR8532WirelessVoltage/TempUnit(availablesoon)
LR8533WirelessHighSpeedVoltageUnit(availablesoon)
LR8534WirelessStrainUnit(availablesoon)
Z1014ACAdapter(accessory)
Z1007BatteryPack
Z5040FixedStand
C1012CarryingCase
Z4001SDMemoryCard(2GB)
Z4003SDMemoryCard(8GB)
Z4006USBDrive(16GB)
9642LANCable

6
Safety
Safety
Theinstrumentandmodulesdesignedforusewiththeinstrumenthavebeendesignedin
accordancewiththeIEC61010safetystandard,andtheirsafetyhasbeenveriedbymeansof
testingpriortoshipment.However,failuretofollowtheinformationinthismanualcouldrender
safety-relatedfunctionalityprovidedbytheinstrumentine󰀨ective.
Pleasereviewthesafetyinformationbelowbeforeusingtheinstrument.
DANGER
Read this manual carefully and ensure you understand its contents
before using the instrument.
Improperuseoftheinstrumentcouldresultinseriousbodilyinjuryordamagetothe
instrument.
WARNING
If using an electrical measuring instrument for the rst time, seek
instruction from an individual with electrical measurement experience
rst.
Failuretodosomayleadtoelectricshock,overheating,re,arcingduetoashort-
circuit,orotherhazards.

7
Safety
Measurement categories
IEC61010denesmeasurementcategoriestofacilitatesafeuseofmeasuringinstruments.Test
andmeasurementcircuitsdesignedtobeconnectedtoamainpowersupplycircuitareclassied
intothreecategoriesdependingonthetypeofmainpowersupplycircuit.
DANGER
Do not use an instrument to measure a main power supply circuit
whose category exceeds the instrument’s rated measurement category.
Do not use an instrument that does not have a rated measurement
category to measure a main power supply circuit.
Doingsomayresultinseriousbodilyinjuryordamagetotheinstrumentorother
equipment.
CAT II Applicabletotestandmeasuringcircuitsconnecteddirectlytoutilizationpoints
(socketoutletsandsimilarpoints)ofthelow-voltagemainsinstallation.
Examples:Measurementsonhouseholdappliances,portabletools,andsimilar
equipment,andontheconsumersideonlyofsocket-outletsinthexed
installation.
CAT III Applicabletotestandmeasuringcircuitsconnectedtothedistributionpartofthe
building’slow-voltagemainsinstallation.
Examples:Measurementsondistributionboards(includingsecondarymeters),
photovoltaicpanels,circuitbreakers,wiring,includingcables,bus-
bars,junctionboxes,switches,socket-outletsinthexedinstallation,
andequipmentforindustrialuseandsomeotherequipmentsuchas
stationarymotorswithpermanentconnectiontothexedinstallation.
CAT IV Applicabletotestandmeasuringcircuitsconnectedatthesourceofthebuilding’s
low-voltagemainsinstallation.
Examples:Measurementsondevicesinstalledbeforethemainfuseorcircuit
breakerinthebuildinginstallation.
T Outlet
CATII
CATIII
Indoorwiring
Energymeter
Distributionpanel
Serviceinlet
Servicewire
CATIV
Fixedequipment

8
OperatingPrecautions
Operating Precautions
Besuretofollowtheprecautionslistedbelowinordertousetheinstrumentsafelyandinamanner
thatallowsittofunctione󰀨ectively.
Useoftheinstrumentshouldconformnotonlytoitsspecications,butalsotothespecicationsof
allaccessories,options,andotherequipmentinuse.
Checking safety prior to use
DANGER
Inspect the instrument and verify proper operation before use.
Useoftheinstrumentwhilemalfunctioningcouldresultinseriousbodilyinjury.
Ifyoundanydamage,contactyourauthorizedHiokidistributororreseller.
Formoreinformationaboutinspections,see“Inspectionoftheinstrument”(p. 47).
Installing the instrument
Formoreinformationabouttheinstrument’soperatingtemperatureandhumidityrangeandits
storagetemperatureandhumidityrange,see“4Specications”(p. 75).
WARNING
Do not install the instrument in locations such as the following:
•In locations where it would be subject to direct sunlight or high temperatures
•In locations where it would be exposed to corrosive or explosive gases
•In locations where it would be exposed to powerful electromagnetic radiation or
close to objects carrying an electric charge
•Close to inductive heating devices (high-frequency inductive heating devices,
IH cooktops, etc.)
•In locations characterized by a large amount of mechanical vibration
•In locations where it would be exposed to water, oil, chemicals, or solvents
•In locations where it would be exposed to high humidity or condensation
•In locations with an excessive amount of dust
Doingsocoulddamagetheinstrumentorcauseittomalfunction,resultinginbodily
injury.
CAUTION
Do not place the instrument on an unstable stand or angled surface.
Doingsocouldcausetheinstrumenttofalloroverturn,resultinginbodilyinjuryor
damagetotheinstrument.
Do not bend or pull on cables at temperatures of 0°C or lower.
Sincecablesbecomerigid,doingsocoulddamagetheinsulationorcauseawire
break,resultinginelectricshock.

9
OperatingPrecautions
Installing the instrument (continued)
NOTICE
Do not unplug data cables while the instrument is sending or receiving data.
Doingsocoulddamagetheinstrument.
Turn o󰀨 the instrument and computer before connecting or disconnecting data
cables.
Failuretodosocouldcausetheinstrumenttomalfunctionordamageit.
Use the same ground for the instrument and computer.
Connectingdatacableswhilethereisapotentialdi󰀨erencebetweentheinstrument
andcomputer’sgroundlevelscouldcausetheinstrumenttomalfunctionordamageit.
IMPORTANT
•Ensurethattheambienttemperatureneartheterminalblocksdoesnotchange.Inparticular,
ensurethatairfromaventilationfan,airconditioner,orsimilardevicedoesnotowdirectly
ontotheinstrument.Whenusingthermocoupleinput,theresultingchangeinambient
temperaturecouldintroducemeasurementerror.
•Whenmovingtheinstrumenttoalocationwithasignicantlydi󰀨erenttemperature,allowthe
instrumenttositforatleast60minutesbeforestartingmeasurement.
Donotblockventopenings.(Leaveatleast5cmofspaceontheleftandrightsidesofthe
instrumentinordertokeepitstemperaturefromrising.)
Atleast5cm Atleast5cm
TheinstrumentisclassiedasaClassAdeviceundertheEN61326standard.Useofthe
instrumentinaresidentialsettingsuchasaneighborhoodcouldinterferewithreceptionofradio
andtelevisionbroadcasts.Ifyouencounterthisissue,takestepsasappropriatetoaddressit.

10
OperatingPrecautions
Measurement precautions
DANGER
Do not input a voltage that exceeds the measurement module’s
maximum input voltage, maximum rated terminal-to-ground voltage, or
maximum rated channel-to-channel voltage to any channel.
Do not input a voltage to a resistance measurement terminal.
Measurementmoduleshavedi󰀨erentmaximuminputvoltages,maximumrated
terminal-to-groundvoltages,andmaximumratedchannel-to-channelvoltages.For
moreinformationaboutmaximuminputvoltages,maximumratedterminal-to-ground
voltages,andmaximumratedchannel-to-channelvoltages,see“Specications”
(p. 75).
Doingsocouldcauseelectricshockordamagetheinstrument.
Do not use the instrument or measurement modules to measure a main
power supply circuit.
TheU8550,U8551,U8552,U8553,LR8530,LR8531,LR8532,andLR8533
measurementmoduleshaveterminal-to-groundvoltagesthatqualifyasCATII,but
theycannotbeusedtoperformCATII,CATIII,orCATIVmeasurement.
NeverinputaCATII,CATIII,orCATIVvoltageacrossmeasurementterminals.
Doingsocouldcauseelectricshockordamagetheinstrument.
Turn o󰀨 power to the circuit under measurement before performing
measurement.
Failuretodosocouldcauseelectricshockordamagetheinstrument.
WARNING
Do not allow the instrument to get wet.
Do not operate the instrument with wet hands.
Doingsocouldcauseelectricshock.
Displayedvaluescanfrequentlyuctuateduetoinductionpotentialevenwhenno
voltageisapplied.This,however,isnotamalfunction.

11
OperatingPrecautions
Shipping precautions
Storepackagingmaterialsforfutureuse.Youwillneedthepackagingmaterialswhenshippingthe
instrument.
NOTICE
Do not subject the instrument to vibration or mechanical shock while
transporting or handling it.
Do not drop the instrument.
Doingsocoulddamagetheinstrument.
When transporting the Z1007 Battery Pack on an aircraft
•TheZ1007BatteryPackusesrechargeablelithium-ionbatteries.
•Thetransportoflithium-ionbatteriesbyairissubjecttoregulationsinaccordancewithUnited
Nationsrecommendations.
•IfyouneedtorepairorcalibrateanydevicethatusestheZ1007BatteryPackortotransportsuch
devicesbyair,contactyourauthorizedHiokidistributororreseller.
Precautions related to disc usage
•Exercisecaretokeeptherecordingsurfaceofthediscfreeofdirtanddamage.Ifyouneedto
labelthedisc,forexamplewithtext,useamarkerwithasofttip.
•Storediscsinprotectivecases.Avoidexposingdiscstodirectsunlight,hightemperatures,orhigh
humidity.
•Hiokiisnotliableforanycomputersystemissuesthatariseinconnectionwiththeuseofthis
disc.

12
OperatingPrecautions
Wireless LAN
TheLR8450-01MemoryHiLoggerandZ3230WirelessLANAdapteruseradiocommunications
inthe2.4GHzband.Noregulatorypermitisnecessarytousetheproduct,butcautionshouldbe
exercisedwithregardtothefollowing:
DANGER
Do not use the instrument in proximity to medical devices such as
pacemakers.
Radiowavesfromtheinstrumentmaya󰀨ectoperationofthepacemakerorother
medicaldevice,causingittomalfunctionordamagingit.
WARNING
Do not use the instrument with medical equipment, nuclear power
equipment or devices, aerospace equipment, transport equipment or
devices, or other equipment or devices being used in applications that
a󰀨ect human life, or with equipment, devices, or systems that require
an advanced level of reliability.
Hiokiisnotliableforanybodilyinjuryorinfrastructureinterruptionsthatariseasa
resultoftheuseoftheproductinsuchapplications.
NOTICE
Do not use the LR8450-01 or its wireless modules in proximity to other devices
that use the same frequency band, for example Wi-Fi®or Bluetooth®devices.
Doingsomayresultincommunicationsinstabilityora󰀨ecttheoperationofother
devices.
Install the LR8450-01 and any wireless modules (Z3230 Wireless LAN Adapters)
so that there are no obstructions (walls, metal materials, etc.) between them.
Failuretodosomayresultincommunicationsinstabilityorreducethe
communicationsrange.
•CommunicationsbetweentheLR8450-01anditswirelessmodules(Z3230WirelessLAN
Adapters)areencrypted,butthecondentialityofinformationsentandreceivedisnotguaranteed.
Hiokiisnotliableforanyleaksofmeasuredvaluescausedbywirelesscommunications.
•TheLR8450-01anditswirelessmodules(Z3230WirelessLANAdapters)giveo󰀨radio-wave
radiation.Useofradiocommunicationsrequiresapermitinthecountryofuse.Useofthe
instrumentoutsidethecountriesandregionslistedintheincluded“PrecautionsConcerningUse
ofEquipmentThatEmitsRadioWaves”mayconstituteaviolationofapplicablelaws,resultingin
penalties.
•PlacingtheLR8450-01anditswirelessmodules(Z3220WirelessLANAdapters)ontheooror
groundwillreducethecommunicationsrange.Thecommunicationsrangecanbeextendedby
movingthedevicesawayfromtheoororground,forexamplebyplacingthemonaworkbench
orstand.

13
HowtoUseThisManual
How to Use This Manual
How to open screens
: SETkey
:Maintab
:Subtab
Step number
Numbersarethesameasthose
usedintheinstructions.
Selections and explanations
Indicatestheselectionsthat
canbemadebypressingthe
ENTERkeyandexplainsthem.
Themarkindicatesthe
defaultsetting.

14
IntroductiontoConvenientFunctionality
Introduction to Convenient Functionality
Thissectionintroducesconvenientfunctionalityprovidedbytheinstrumentandindicateswhereto
lookformoreinformation.
When you want to capture sudden phenomena
It’shardtosearchforanomaliesinalongrecording.Youwanttorecordonly
anomalies.
Trigger function
See“2TriggerFunction”intheInstructionManual.
Specifythelevelthatindicatesananomalysothattheinstrumentstartsrecordingwhenthat
conditionissatised.
Youcanusethetriggerfunctiontocontrolwhentostartandstoprecording.
Recordingwillstartwhentheinputsignal
reachesorexceedsthetriggerlevel.
Highdatavolume
Triggerlevel
Datawhererequiredonly Recording
time
Recording
time
Recording
time
When you want to view data before an issue occurs
Whydidtheissueoccur?Youwanttoviewthewaveformbeforeananomalyoccurred.
Pre-trigger function
See“2.2EnablingtheTriggerFunction”intheInstructionManual.
Youcanalsorecorddatabeforetriggerconditionsaresatised.
Dataprecedingananomalyisusefulwhenyouneedtoanalyzethecauseofanissue.
Triggerlevel
Analyzethecausebasedon
dataprecedinganomaly.
Recording
time
Recording
time
Recording
time
Pre-trigger Pre-trigger Pre-trigger

15
IntroductiontoConvenientFunctionality
When you want to view waveforms, numerical values, and
comments at the same time
Youwanttoviewwaveformsandnumericalvaluesatthesametime.Youwantto
displaycommentsthatidentifythedata.
Switching the waveform screen
See“Waveformdisplay”intheInstructionManual.
YoucanswitchthewaveformscreenwiththeWAVEkey.
Thisfeaturealsoletsyoudisplaynumericalvaluesandcommentsalongwithwaveforms.
When you want to read values from waveforms
Youwanttoreadvaluesfromwaveforms.Youalsowanttoascertainthepotential
di󰀨erenceortimedi󰀨erencebetweentwopoints.
A/B cursors
See“1.12UsingtheA/BCursors”intheInstructionManual.
TheA/Bcursorsletyoureadmeasuredvaluesandtimesfromwaveforms.
Youcanalsoreadthepotentialdi󰀨erenceandtimedi󰀨erencebetweentheAcursorandthe
Bcursor.

16
IntroductiontoConvenientFunctionality
When you want to ascertain the characteristics of the measured
waveform
Youwanttoascertainthecharacteristicsofawaveform,forexampleitsmaximumand
minimumvalues.
Numerical calculation function
See“6.1PerformingNumericalCalculations”intheInstructionManual.
Thisfunctionletsyouascertainthecharacteristicsofmeasuredwaveformsusingnumerical
calculations.
Youcancalculateany10valuesoutof13availablechoices,includingmaximumvalue,
minimumvalue,andaveragevalue.
When you want to record only the rise in temperature
Youwanttoknowhowmuchatemperaturereadingrosefromtheambient
temperature.
Waveform calculation function
See“6.2PerformingWaveformCalculations”intheInstructionManual.
ThisfunctionletsyoumeasurethetemperatureofthemeasurementtargetusingU1-1and
theambienttemperatureusingU1-2.
Youcanrecordthemeasurementtarget’sriseintemperatureusingthefollowingwaveform
calculation:W1=U1-1−U1-2
U1-1:Temperatureofmeasurementtarget
U1-2:Ambienttemperature
W1:Riseintemperature

17
IntroductiontoConvenientFunctionality
When you want to stop a piece of equipment if it becomes too hot
Youwanttomonitorthetemperatureofapieceofequipmentandhaltitsoperationifit
becomestoohot.
Alarm output function
See“4Alarm(AlarmOutput)”intheInstructionManual.
Thisfunctionletsyousetathresholdandthenoutputanalarmsignaliftheinputsignal
reachesorexceedsthatthreshold.
Alarmoutputcanbeusedtocommunicatethealarmtoapieceofequipmentortocontrola
warninglamp.
Alarm
Alarm
Alarm
Level
Time
Slope
Whentherateof
changeoftheinput
signalcontinuesto
exceedthespecied
rateofchangeper
timeduringtheperiod
ofthesetrecording
time,analarmwill
output.
When you want to check the status of measurement from your
o󰀩ce
Yourmeasurementsiteando󰀩ceareconnectedbyaLAN.Youwanttocheckthe
statusofmeasurementusingacomputerinyouro󰀩ce.
HTTP server
See“9.5PerformingRemoteMeasurementwiththeHTTPServer”intheInstructionManual.
ThisfunctionletsyoucontroltheLR8450remotelyusingacomputerinano󰀩cewhile
measurementcontinuesintheeld.
Youcanviewdatainrealtime,andyoucanalsocapturewaveformdata.

18
IntroductiontoConvenientFunctionality
When you want to embed the LR8450 in another piece of
equipment
YouwanttomounttheLR8450onawall.
Z5040 Fixed Stand
See“Options(soldseparately)”(p. 5).
YoucanmounttheinstrumentonanotherpieceofequipmentusingtheoptionalZ5040Fixed
Stand.
When you want to clear the settings from the previous user
Thesettingsconguredbytheprevioususercouldcauseunintendedoperation.You
wanttoclearthosesettings.
Initialization (system reset)
See“Initializing(resetting)thesystem”intheInstructionManual.
Whenmultipleusersaresharingtheinstrument,itisrecommendedtoconguresettings
afterrstinitializingtheinstrument.
When you want to measure temperatures at multiple points using
thermocouples
Youwanttomeasure300ormoretemperaturereadingsatthesametime.
U8552 Voltage/Temp Unit, LR8532 Wireless Voltage/Temp Unit
See“1.3Options”(p. 32).
Youcanmeasure330temperaturereadingsusingfourU8552modulesandsevenLR8532
modules.
When you want to measure temperature with a high degree of
precision
Youwanttomeasuretemperaturewithahigherdegreeofprecisionthanispossible
withthermocouples.
U8551 Universal Unit, LR8531 Wireless Universal Unit
See“1.3Options”(p. 32).
YoucanmeasuretemperatureusingaresistancebulbwiththeU8551andLR8531.