Fluke fluke123 Selecting AC-Coupling, Reversing the Polarity of the Displayed Waveform, Fluke

Models: fluke123

Selecting AC-Coupling

Reversing the Polarity of the Displayed Waveform

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Fluke 123

Users Manual

Use AC-coupling when you wish to observe a small AC signal that rides on a DC signal.

Open the SCOPE INPUTS menu.

Open the SCOPE INPUTS menu.

To invert the input A waveform, do the following:

 Highlight AC.

	(4x)	Accept AC-coupling for INPUT A.
	(4x)	Accept AC-coupling for INPUT A.

 Select NORMAL (of INPUT A).

 Highlight INVERT.

	(3x)	Accept inverted waveform
	(3x)	Accept inverted waveform
		display.
		display.

For example, a negative-going waveform is displayed as positive-going, providing a more meaningful viewing perspective in some cases. An inverted display is identified by trace identifier A on left of the waveform area.

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Fluke fluke123 user manual Selecting AC-Coupling, Reversing the Polarity of the Displayed Waveform, Fluke, Users Manual

Contents

Fluke Users ManualIndustrial ScopeMeter LIMITED WARRANTY & LIMITATION OF LIABILITY +31-402-678-200 in Europe +1-425-356-5500 from other countries SERVICE CENTERSUsing The Test Tool Table of ContentsPage ChapterFluke Service Manual Contents continuedStandard Accessories Optional AccessoriesSpecifications FlukeUsers Manual Declaration of Conformity Declaration of ConformityManufacturer Statement of ConformityFluke Unpacking the Test Tool Kit# Description ModelFigure 1. ScopeMeter Test Tool Kit Unpacking the Test Tool KitSafety Precautions Safely Using the Test ToolFluke Users Manual∙ Do not use conventional exposed metal banana plug connectors Safely Using the Test Tool∙ Do not insert metal objects in the power adapter connector ∙ Use only one common connection to the test toolIf Safety-Precautions are Impaired FlukeUsers Manual Powering the Test Tool Using The Test ToolFigure 1-1. Powering the Test Tool ChapterFigure 1-2. The Screen After Reset Resetting the Test ToolFluke Users ManualUsing The Test Tool Changing BacklightChanging Backlight informs you about the condition of the battery When battery powered, the battery indicatorReading the Screen Figure 1-3. The Screen Area’sMaking Selections in a Menu When you do not change an item with the blueMaking Selections in a Menu Subsequently follow steps to  to open a menu and toInput A Looking at the Measurement ConnectionsInput B Figure 1-5. Measurement ConnectionsDisplaying an Unknown Signal with Connect-and View Displaying an Unknown Signal with Connect-and ViewFigure 1-6. The Screen After an Auto Set Using The Test ToolMaking Measurements Figure 1-7. Measurement SetupFluke Users ManualMaking Measurements Figure 1-8. Hz and Vpp as Main ReadingsUsing The Test Tool Holding a Stable Reading Freezing the ScreenTOUCH HOLD OFF appears on FlukeMaking Relative Measurements Making Relative MeasurementsFigure 1-9. Making a Relative Measurement Using The Test ToolChanging the Graphic Representation on the Screen Selecting Auto/Manual RangesChanging the Time Base Changing the AmplitudeChanging the Graphic Representation on the Screen Positioning the Waveform on the ScreenObserve that the trigger identifier moves horizontally Figure 1-10. Positioning the WaveformFigure 1-11. Smoothing the Waveform Smoothing the WaveformFluke Accept waveform smoothFigure 1-12. Displaying the Envelope of a Waveform Displaying the Envelope of a WaveformUsing The Test Tool Changing the Graphic Representation on the ScreenStarting a TrendPlot function TrendPlotting a WaveformFigure 1-13. TrendPlot Reading FlukeChanging the TrendPlot Reading Acquiring the WaveformTurning Off the TrendPlot Display Making a Single AcquisitionFigure 1-14. Making a Single Acquisition   Fluke Users ManualStart Recording Recording Slow Signals over a Long Period of TimeFigure 1-15. Recording Waveforms over Longer Period of TimeReversing the Polarity of the Displayed Waveform Selecting AC-CouplingFluke Users ManualTriggering on a Waveform Setting Trigger Level and SlopeFigure 1-16. Screen with all Trigger Information Using The Test Tool     Setting the automatic triggering to 1Hz will slow down the auto rangeSelecting the Trigger Parameters Fluke   Triggering on Video Signals   Isolated TriggeringFigure 1-18. Measuring Video Signals FlukeUsers Manual Using The Test Tool Triggering on a Specific Video LineSaving Screens Saving and Recalling a Setup or a ScreenRecalling Screens FlukeDeleting Screens Saving and Recalling a Setup or a ScreenUsing The Test Tool Filled memory locations are indicated with a closed squareFigure 1-19. Connecting a Serial Printer Using a PrinterFigure 1-20. Connecting a Parallel Printer FlukeUsing a Printer Using The Test Tool    Figure 1-21. Connecting a Computer Using FlukeView SoftwareFluke Users ManualMaintaining the Test Tool Cleaning the Test ToolAbout this Chapter Storing the Test ToolFigure 2-1. Charging the Battery Pack Charging the Ni-Cd Battery PackFluke Users ManualKeeping Batteries in Optimal Condition Maintaining the Test ToolKeeping Batteries in Optimal Condition Figure 2-2. Replacing the Battery Pack Replacing and Disposing of the Ni-Cd Battery PackFluke Users ManualUsing and Adjusting 101 Scope Probes Using and Adjusting 101 Scope ProbesFigure 2-3. Adjusting Scope Probes Maintaining the Test ToolHighlight PROBE AC ADJUST Open the PROBE AC ADJUST submenu  Highlight ADJUST 101 PROBE A square wave appears on the screen Adjust the trimmer screw in theService Manual Parts and AccessoriesStandard Accessories Calibrating the Test ToolOrdering Code Standard Accessories contFluke Users ManualStandard Accessories cont Parts and AccessoriesMaintaining the Test Tool Ordering CodeOptional Accessories FlukeOrdering Code Using the Tilt Stand Tips and TroubleshootingFigure 3-1. Using the Tilt Stand ChapterResetting the Test Tool Changing the Information LanguageFluke Users ManualAdjusting the Screen Contrast Setting the Grid DisplayTips and Troubleshooting Changing the DisplayChanging Date and Time FlukeUsers Manual Setting the Power Down Timer Saving Battery LifeSaving Battery Life Tips and TroubleshootingChanging the Auto Set Options FlukeUsers Manual Using Proper Grounding Using Proper GroundingTo avoid electrical shock or fire, use only one COM common connection, or ensure that allBattery Testing of Fluke Accessories Solving Printing and Other Communication ErrorsFluke multimeter FlukePerformance Characteristics SpecificationsSafety Characteristics IntroductionVertical Dual Input OscilloscopeFrequency Response Rise Timeoptional accessory SpecificationsHorizontal TriggerDisplay Modes Advanced Scope FunctionsAuto Set FlukeInput A and Input B Dual Input MeterDC Voltage VDC True RMS Voltages VAC and VAC+DCDuty Cycle DUTY PhasePulse Width PULSE Decibel dBContinuity CONT Advanced Meter FunctionsDiode Zero SetMiscellaneous PowerDisplay MemoryEnvironmental TemperatureEnvironmental Electromagnetic Compatibility EMCMax. Input Voltage Input A and B Safetyup to 400 Hz Figure 4-1. Max. Input Voltage v.s. FrequencyTrace disturbance with STL120 SafetyNo visible disturbance E= 3 V/mVDC, VAC, and VAC+DC with STL120 and short ground lead Multimeter disturbanceOHM, CONT, DIODE, and CAP with STL120, and black test lead to COM Disturbance less than 1% of full scaleIndex Users Manual FlukeIndex continued Users Manual Fluke