Fluke fluke123 user manual Making Relative Measurements, Making a Relative Measurement

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Using The Test Tool	1
Making Relative Measurements

Making Relative Measurements

Zero Reference displays the present measurement result with respect to the defined value. This feature is useful when you need to monitor the measured value in relation to a known good value.

							Open the INPUT A menu.
							Open the INPUT A menu.



							Open the METER A OPTIONS
							Open the METER A OPTIONS
							submenu.
							submenu.

					(2x)				Jump to ZERO REF.
					(2x)				Jump to ZERO REF.


									Highlight ON.
									Highlight ON.


									Activate the relative
									Activate the relative
									measurement.
									measurement.

Figure 1-9. Making a Relative Measurement

The relative measurement now becomes the main reading, while the former main measurement has moved to the smaller secondary reading position. (See Figure 1-9.)

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Contents Fluke Limited Warranty & Limitation of Liability Service Centers Table of Contents Fluke Iii Specifications Declaration of Conformity ManufacturerStatement of Conformity Sample testsUnpacking the Test Tool Kit # DescriptionModel 123 123/SCCScopeMeter Test Tool Kit Safely Using the Test Tool Safely Using the Test Tool Fluke Powering the Test Tool Goal of this ChapterResetting the Test Tool Screen After ResetChanging Backlight Reading the Screen From full to emptyMaking Selections in a Menu Basic NavigationLooking at the Measurement Connections Input aInput B Displaying an Unknown Signal with Connect-and View Screen After an Auto SetMeasurement Setup Making MeasurementsHz and Vpp as Main Readings Freezing the Screen Holding a Stable ReadingTouch Hold OFF appears on Making Relative Measurements Making a Relative MeasurementSelecting Auto/Manual Ranges Changing the Graphic Representation on the ScreenChanging the Time Base Changing the AmplitudePositioning the Waveform on the Screen Observe that the trigger identifier moves horizontallyOn the screen Smoothing the Waveform 11. Smoothing the WaveformDisplaying the Envelope of a Waveform 12. Displaying the Envelope of a WaveformTrendPlotting a Waveform Starting a TrendPlot functionAcquiring the Waveform Changing the TrendPlot ReadingTurning Off the TrendPlot Display Making a Single Acquisition14. Making a Single Acquisition Recording Slow Signals over a Long Period of Time Start RecordingSelecting AC-Coupling Reversing the Polarity of the Displayed WaveformSetting Trigger Level and Slope Triggering on a Waveform     Selecting the Trigger ParametersIsolated Triggering Triggering on Video Signals 17. Isolated Triggering18. Measuring Video Signals Triggering on a Specific Video Line Saving and Recalling a Setup or a Screen Saving ScreensRecalling Screens Deleting Screens Using a Printer 19. Connecting a Serial Printer    Using FlukeView Software 21. Connecting a ComputerCleaning the Test Tool About this ChapterStoring the Test Tool Charging the Ni-Cd Battery Pack Charging the Battery PackKeeping Batteries in Optimal Condition Replacing and Disposing of the Ni-Cd Battery Pack Replacing the Battery PackUsing and Adjusting 101 Scope Probes Adjusting Scope Probes  Parts and Accessories Standard AccessoriesCalibrating the Test Tool Standard Accessories Ordering CodeMaintaining the Test Tool Parts and Accessories Optional Accessories SW90WUsing the Tilt Stand Using the Tilt StandChanging the Information Language Setting the Grid Display Adjusting the Screen Contrast Changing the DisplayChanging Date and Time Saving Battery Life Setting the Power Down TimerChanging the Auto Set Options Using Proper Grounding PotentialSolving Printing and Other Communication Errors Battery Testing of Fluke AccessoriesFluke multimeter Performance Characteristics Safety CharacteristicsIntroduction Environmental DataDual Input Oscilloscope VerticalHorizontal TriggerRanges Sampling Rate for both channels simultaneouslyAdvanced Scope Functions Display ModesAuto Set Dual Input Meter Input a and Input BPhase Duty Cycle DutyPulse Width Pulse Decibel dBAdvanced Meter Functions Power MiscellaneousDisplay MemoryEnvironmental Electromagnetic Compatibility EMCSafety Max. Input Voltage Input a and BUp to 400 Hz Trace disturbance with STL120 No visible disturbance = 3 V/m= 10 V/m Disturbance less than 10% of full scaleVDC, VAC, VAC+DC OHM, CONT, Diode CAP Index Fluke Index Fluke