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Fluke 45 user manual Applications, Using the Dual Display, Chapter, Introduction

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Chapter 4

Applications

Introduction

Chapter 4 discusses some applications that will help you use the meter effectively. These applications assume you are familiar with the basic operation of the meter and have a basic understanding of electronics. A sophisticated understanding of electrical circuits is not necessary.

Using the Dual Display

Using the dual display effectively and with ingenuity can greatly enhance your test and measurement capabilities. By allowing you to make several measurements on a particular input signal, the dual display makes it easy to take measurements that in the past required you to use two meters or make a series of measurements.

To see the ease with which the dual display can be used to take a reading of the ac component of a signal on one display and its frequency on the other, perform the following procedure to measure the voltage and frequency of line power:

1.Press in POWER to turn the meter on.

2.Plug the test leads into the Xand COM input terminals.

3.Press Zto select volts ac for the primary display.

4.Press S, then press Fto select frequency for the secondary display.

5.Insert the test lead probes into a wall socket. The display will appear something like Figure 4-1.

4-1

Image 45

Fluke 45 user manual Applications, Using the Dual Display, Chapter, Introduction

Contents

Dual Display Multimeter LIMITED WARRANTY & LIMITATION OF LIABILITY Safety Class Interference InformationDeclaration of the Manufacturer or Importer Title Table of ContentsIntroduction Getting StartedApplications Operating the Meter Using the Computer InterfaceAppendices MaintenanceTitle List of TablesReplacement Parts Performance Tests for mA Current FunctionsPerformance Tests for A Current Functions Title List of FiguresChapter IntroductionIntroducing the Fluke 45 Dual Display Multimeter WWarningOptions and Accessories Where to go from HereChapter 1 Introduction Chapter 2 Getting started Chapter 6 MaintenanceChapter 4 Applications AppendicesPage WWARNING TO AVOID ELECTRICAL SHOCK OR OTHER INJURYMULTIMETER SAFETY Line Power Adjusting the HandleGetting Started IntroductionFigure 2-2.Rear Panel Figure 2-1.Front PanelTurning the Meter on Using the PushbuttonsFigure 2-4.Summary of Basic Pushbutton Operations Automatic Input Terminal Selection Selecting a Measurement RangeTaking Some Basic Measurements WWarningDiode/Continuity Testing Measuring Voltage, Resistance, or FrequencyMeasuring Current FREQ FREQGetting Started Taking Some Basic MeasurementsFigure 2-8.Diode Testing Figure 2-7.Continuity TestingCIRCUIT Note This is a Diode Test FunctionOperating the Meter Under Battery Power Optional Rack MountingOperating the Meter Under Battery Power Optional 2-10 Front Panel Operations Operating the Meter From the Front PanelChapter IntroductionDisplay Primary DisplaySecondary Display MAX dB REL AUTO REMOTE SMFEXT TRG MIN HOLDFigure 3-4.Input Terminals Input TerminalsRanging Selecting a Measurement FunctionE, U, T AutorangingFigure 3-5.Function Selection Buttons Ranging Operating the Meter From the Front PanelMeasuring Frequency Manual RangingFrequency Ranging Frequency Sensitivity Selection Frequency Measurement RatesOperating the Meter From the Front Panel Measuring FrequencyK, I, H, J Selecting A Function ModifierWWarning REL Relative Readings ModifierOperating the Meter From the Front Panel Selecting A Function ModifierdB Decibels and Audio Power Modifier Using Function Modifiers in Combination HOLD Touch Hold ModifierMN MX Minimum Maximum Modifier Selecting A Measurement Rate Rate Using the SButtonSelecting A Function Modifier Operating the Meter From the Front Panel3-15 PushbuttonsThe List and Number Editors Using The Compare Comp FunctionUsing the List Editor Using the Number Editor Power-UpConfiguration Factory Settings of Power-UpConfigurationChanging the Power-UpConfiguration Calibration Applications Using the Dual DisplayChapter IntroductionUsing Measurement Functions in Combination Applications Using the Dual DisplayResponse Times How the Meter Makes Dual Display Measurements How the Meter Makes Dual Display MeasurementsMeas Function External Trigger Update Rate in the Dual Display ModeThermal Voltages Two-WireConfiguration When Measuring ResistanceTrue RMS Measurements Correcting for Test Lead ResistanceCalculated AC + DC RMS Measurements Effects of Internal Noise in AC MeasurementsApplications Figure 4-3.Waveform Comparison ChartTrue RMS Measurements 4-114-12 Local and Remote Operations Operating the Meter Using the Computer InterfaceComputer Interfaces ChapterSetting Communication Parameters RS-232 RS-232 Print-OnlyMode Cabling the Meter to a Host or Printer RS-232 Device Clear Using C CNTRL CCharacter Echoing and Deletion RS-232PromptsIEEE-488Operating Limitations Installing the IEEE-488InterfaceEnabling the IEEE-488Interface Addressing the MeterInstallation Test for RS-232Operations Getting Started With An Installation TestInstallation Test for IEEE-488Operations Cabling the Meter to a HostIf Test Fails How the Meter Processes InputInput Strings Input TerminatorsSending Command Strings to the Meter Typical IEEE-488Input StringsSending Numeric Values to the Meter 1.Commands to configure the meter if any Figure 5-1.Typical IEEE-488Input Strings 5-10How the Meter Processes Output Triggering OutputExternal Triggering from the Front Panel External Triggering via the Computer Interface Setting the Trigger Type ConfigurationTable 5-3.Trigger Type Read Command Event Status Enable RegisterWrite Command Enable RegisterPage 7 6 5 4 Event Status and Event Status Enable RegistersReading the Status Byte Register Status Byte RegisterService Request Enable Register IEEE-488Capabilities and Common Commands Computer Interface Command SetCommand Table 5-9. IEEE-488Common Commands5-20 Table 5-8. IEEE-488Interface Function SubsetsComputer Interface Command Set Operating the Meter Using the Computer InterfaceTable 5-10. IEEE-488Common Commands cont CommandFunction Modifier Commands and Queries Function Commands and QueriesTable 5-11.Function Commands and Queries CommandsComputer Interface Command Set Operating the Meter Using the Computer InterfaceCommand Table 5-12.Function Modifier Commands and QueriesCommand 5-24Description Operating the Meter Using the Computer Interface Range and Measurement Rate Commands and QueriesComputer Interface Command Set 5-25Measurement Queries TRIGGER 5, unexpected results will be obtained5-26 Trigger Configuration Commands Compare Commands and QueriesCommand Miscellaneous Commands and QueriesTable 5-17.Miscellaneous Commands and Queries 5-28Operating the Meter Using the Computer Interface RS-232Remote/Local ConfigurationsComputer Interface Command Set CommandSample Program Using the RS-232Computer Interface 5-30aam23f.eps Operating the Meter Using the Computer Interface 5-31aam24s.tif aam25s.tif 5-32Operating the Meter Using the Computer Interface 5-33aam26s.tif aam27s.tif 5-345-35 Operating the Meter Using the Computer InterfaceCleaning MaintenanceLine Fuse WWarningCurrent Input Fuses Testing Current Input FusesReplacing the 10 A Input Fuse Replacing the 100 mA Input FuseWWarning WWarningPerformance Tests Self-TestDiagnostics and Error CodesService Range Rate FunctionInput Level FrequencyMaintenance Replacement PartsReplacement Parts Quantity Fluke Part Number Part DescriptionFLUKE PART NO Table 6-5.Replacement Parts cont DESCRIPTIONAppendix AppendicesPage SpecificationsPage Appendix A SpecificationsDisplay Counts and Reading Rates RS-232and IEEE-488Reading Transfer RatesInput Impedance DC VoltageNormal Mode Rejection Ratio Common Mode Rejection RatioTrue RMS AC Voltage, AC-Coupled Decibel ResolutionAppendices Maximum InputMaximum Crest Factor Decibel Reference ResistanceAC + DC Voltage Accuracy Input ImpedanceAC Current DC CurrentAppendices Maximum InputMaximum Crest Factor AccuracyMaximum Input RangeFrequencyDiode Test/Continuity OhmsOpen Circuit Voltage Input ProtectionSensitivity of AC Voltage FrequencySensitivity Level of AC Current Open Circuit VoltageEnvironmental Specifications AAppendices Options GeneralAppendix B ASCII/IEEE-488Bus CodesPage ASCII/IEEE-488Bus Codes B AppendicesAppendix C IEEE-488.2Device Documentation RequirementsImplementation of IEEE Standard IntroductionNo commands are coupled All queries generate a response when parsedDevice-specificcommands used NUMERIC RESPONSE DATAFormat 2 NR3 NUMERIC RESPONSE DATA UNIT Format 1 NR3 NUMERIC RESPONSE DATAMEASUREMENT Volts dcThere are no additional data structures The *RDT and *RAT? commands are not implemented