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Keysight 1000B Series Oscilloscopes User’s Guide

Capturing Data

Oscilloscope Bandwidth Required

The oscilloscope bandwidth required to accurately measure a signal is primarily

determined by the signal’s rise time, not the signal's frequency. You can use these

steps to calculate the oscilloscope bandwidth required:

Determine the fastest edge speeds.

You can usually obtain rise time information from published specifications for

devices used in your designs.

Compute the maximum “practical” frequency component.

From Dr. Howard W. Johnson’s book,

High-Speed Digital Design – A Handbook

of Black Magic

, all fast edges have an infinite spectrum of frequency

components. However, there is an inflection (or “knee”) in the frequency

spectrum of fast edges where frequency components higher than f

knee

are

insignificant in determining the shape of the signal.

knee

= 0.5 / signal rise time (based on 10% - 90% thresholds)

knee

= 0.4 / signal rise time (based on 20% - 80% thresholds)

Use a multiplication factor for the required accuracy to determine the

oscilloscope bandwidth required.

See Also

Choosing an Oscilloscope with the Right Bandwidth for your Application

, Keysight

Application Note 1588

(

http://literature.cdn.keysight.com/litweb/pdf/5989-5733EN.pdf

)

Required

accuracy

Oscilloscope band wid th

required

20%

= 1.0 x f

knee

10%

= 1.3 x f

knee

= 1.9 x f

knee

Содержание 1000B Series

Страница 1: ...Keysight 1000B Series Oscilloscopes User s Guide ...

Страница 2: ...this document are furnished under a license and may be used or copied only in accor dance with the terms of such license Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or subcon tract Software is delivered and licensed as Commercial computer software as defined in DFAR 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a or...

Страница 3: ...des with adjustable sensitivity to filter noise and avoid false triggers Math function waveforms add subtract multiply FFT USB ports host and device for easy printing saving and sharing of waveforms setups screen BMP files and CSV data files Internal storage for 10 waveforms and 10 setups Special digital filter and waveform recorder Built in 6 digit hardware frequency counter Multi language 11 use...

Страница 4: ...ical controls channel settings math waveforms reference waveforms and display settings 3 Capturing Data Describes acquisition modes and how to set up triggers 4 Making Measurements Describes voltage time and cursor measurements 5 Saving Recalling and Printing Data Describes how to save recall and print data 6 Oscilloscope Utility Settings Describes other oscilloscope settings found in the Utility ...

Страница 5: ...ad the default oscilloscope setup 22 Step 4 Input a waveform 23 23 Step 5 Use Auto Scale 24 Step 6 Compensate probes 26 Low Frequency Compensation 26 High Frequency Compensation 26 Step 7 Become familiar with the Front Panel Controls 28 Front Panel Overlays for Different Languages 29 Step 8 Become familiar with the oscilloscope display 30 Using the Oscilloscope Softkey Menus 31 Step 9 Use the Run ...

Страница 6: ...he vertical position 46 To specify channel coupling 47 To specify a bandwidth limit 49 To specify the probe attenuation 50 To use a digital filter 50 To change the Volts Div control sensitivity 51 To invert a waveform 52 Using Math Function Waveforms 54 To add subtract or multiply waveforms 54 To display the frequency domain using FFT 55 Using Reference Waveforms 58 To save a reference waveform 58...

Страница 7: ...e Sampling Mode 70 To select the real time sampling mode 70 To select the equivalent time sampling mode 71 Choosing the Acquisition Mode 73 To select the Normal acquisition mode 74 To select the Average acquisition mode 74 To select the Peak Detect acquisition mode 75 To turn OFF ON sine x x interpolation 77 Recording Playing back Waveforms 78 To record waveforms 78 To play back waveforms 79 To st...

Страница 8: ... Trigger Input 94 4 Making Measurements 95 Displaying Automatic Measurements 96 To display an automatic measurement 97 To clear automatic measurements from the display 97 To display or hide all automatic measurements 97 Voltage Measurements 98 Vmax Maximum Voltage 98 Vmin Minimum Voltage 99 Vpp Peak to Peak Voltage 99 Vtop Top Voltage 99 Vbase Base Voltage 99 Vamp Amplitude Voltage Vtop Vbase 99 V...

Страница 9: ...cursors 109 To display cursors for automatic measurements 110 5 Saving Recalling and Printing Data 111 Saving and Recalling Data 112 To save and recall waveforms 112 To save and recall oscilloscope setups 113 To save screens to BMP or PNG format files 114 To save data to CSV format files 115 Using the Disk Manager 116 To switch between files path and directory panes 117 To navigate the directory h...

Страница 10: ...129 To enable disable mask tests 129 To select the source channel for mask tests 129 To run stop a mask test 130 To turn on off the mask test message display 130 To set the mask test output condition 130 To stop a mask test on the output condition 132 To set up masks 132 Setting Preferences 135 To set up the screen saver 135 To select the vertical scale reference level 135 To select the USB device...

Страница 11: ...User s Guide 11 Measurement Category Definitions 141 Transient Withstand Capability 141 141 Specifications and Characteristics 142 Cleaning the Oscilloscope 142 Contacting Keysight 142 A Safety Notices 143 Warnings 143 Safety Symbols 144 Index 145 ...

Страница 12: ...12 Keysight 1000B Series Oscilloscopes User s Guide Contents ...

Страница 13: ...osition and Horizontal Scale Control Indicators 39 Figure 13 Zoomed Time Base Window 41 Figure 14 X Y Display Format Showing Out of Phase Waveforms 43 Figure 15 Vertical Controls 45 Figure 16 DC Coupling Control 48 Figure 17 AC Coupling Control 48 Figure 18 BW Limit Control OFF 49 Figure 19 BW Limit Control ON 50 Figure 20 Waveform Before Inversion 52 Figure 21 Waveform After Inversion 53 Figure 2...

Страница 14: ...igure 41 Period and Frequency Measurements 101 Figure 42 Rise Time and Fall Time Measurements 102 Figure 43 Positive Pulse Width and Negative Pulse Width Measurements 103 Figure 44 Delay Measurements 104 Figure 45 Phase Measurements 105 Figure 46 Cursors Key 108 Figure 47 USB Host Port on Front Panel 111 Figure 48 Save Recall Key 112 Figure 49 Disk Manager 116 Figure 50 Editing Folder File Names i...

Страница 15: ...uide 15 Tables Table 1 Keysight 1000B Series Oscilloscope Models 3 Table 2 Power Requirements 19 Table 3 Environmental Characteristics 20 Table 4 Auto Scale Default Settings 25 Table 5 Front Panel Controls 29 Table 6 FFT Window Characteristics 56 ...

Страница 16: ...16 Keysight 1000B Series Oscilloscopes User s Guide Tables ...

Страница 17: ... setup 22 Step 4 Input a waveform 23 Step 5 Use Auto Scale 24 Step 6 Compensate probes 26 Step 7 Become familiar with the Front Panel Controls 28 Step 8 Become familiar with the oscilloscope display 30 Step 9 Use the Run Control keys 33 Step 10 Access the built in help 34 Securing the Oscilloscope 35 This chapter describes the basic steps to take when first using the oscilloscope ...

Страница 18: ...ge option other than English is chosen If anything is missing or if you need to order additional probes power cords etc contact your nearest Keysight Technologies sales office 3 Inspect the oscilloscope If there is mechanical damage or a defect or if the oscilloscope does not operate properly or does not pass performance tests notify your Keysight Technologies sales office If the shipping containe...

Страница 19: ...quick functional check to verify the oscilloscope is operating correctly 1 Connect the power cord to a power source Use only power cords designed for your oscilloscope Use a power source that delivers the required power Table 2 Power Requirements Name Typical Value Line rating Line 50 W max 100 120 V 50 60 400 Hz 10 100 240 V 50 60 Hz 10 WARNING To avoid electric shock be sure the oscilloscope is ...

Страница 20: ...ondensing at 60 C for 24 hr Altitude Operating to 3 000 m 9 842 ft Non operating to 15 000 m 49 213 ft Vibration Keysight class GP and MIL PRF 28800F Class 3 random Shock Keysight class GP and MIL PRF 28800F operating 30 g 1 2 sine 11 ms duration 3 shocks axis along major axis Total of 18 shocks Pollution degree 2 Normally only dry non conductive pollution occurs Occasionally a temporary conductiv...

Страница 21: ...Getting Started 1 Keysight 1000B Series Oscilloscopes User s Guide 21 2 Turn on the oscilloscope Figure 1 Power Switch Power switch ...

Страница 22: ...factory default setup any time you want to return the oscilloscope to its original setup 1 Press the front panel Default Setup key 2 When the Default menu appears press Menu On Off to turn off the menu The Undo softkey in the Default menu lets you cancel the default setup and go back to the previous setup Figure 2 Default Setup Key ...

Страница 23: ...a waveform to a channel of the oscilloscope Use one of the supplied passive probes to input the Probe Comp signal from the front panel of the oscilloscope CAUTION To avoid damage to the oscilloscope make sure that the input voltage at the BNC connector does not exceed the maximum voltage 300 Vrms CAT I ...

Страница 24: ...ater than 1 1 Press the front panel Auto Scale key 2 When the AUTO menu appears press Menu On Off to turn off the menu The oscilloscope turns on all channels that have waveforms applied and sets the vertical and horizontal scales appropriately It also selects a time base range based on the trigger source The trigger source selected is the highest numbered channel that has a waveform applied The Un...

Страница 25: ... base Y T amplitude vs time Acquisition mode Normal Vertical coupling Adjusted to AC or DC according to the waveform Vertical V div Adjusted Volts Div Coarse Bandwidth limit OFF Waveform invert OFF Horizontal position Center Horizontal s div Adjusted Trigger type Edge Trigger source Measure the channel with input waveform automatically Trigger coupling DC Trigger voltage Midpoint setting Trigger s...

Страница 26: ...ly inserting the tip onto the probe 2 Attach the probe tip to the probe compensation connector and the ground lead to the probe compensator ground connector 3 Press the Auto Scale front panel key 4 If waveform does not appear like the Correctly Compensated waveform shown in Figure 4 then use a nonmetallic tool to adjust the low frequency compensation adjustment on the probe for the flattest square...

Страница 27: ...output termination of 50Ω 3 Press the Auto Scale front panel key 4 If waveform does not appear like the Correctly Compensated waveform shown in Figure 5 then use a nonmetallic tool to adjust the 2 high frequency compensation adjustments on the probe for the flattest square wave possible Figure 5 High Frequency Probe Compensation High frequency compensation adjustments Over Compensated Under Compen...

Страница 28: ...ont panel controls The front panel has knobs keys and softkeys Knobs are used most often to make adjustments Keys are used for run controls and to change other oscilloscope settings via menus and softkeys Entry knob Horizontal controls Run controls Menu controls Vertical controls Trigger controls Softkeys Setup and File controls Math functions Reference waveforms Figure 6 Front Panel ...

Страница 29: ...rlay flatten out It should remain secure on the front panel Table 5 Front Panel Controls Controls Consists of these knobs and keys Entry knob For the adjustment of defined controls Setup controls Auto Scale and Default Setup front panel keys File controls Save Recall and Print front panel keys Horizontal controls Position knob Horiz front panel key and scale knob Run controls Run Stop and Single f...

Страница 30: ...scope display Channel 1 Status DC coupling 500 mV per division Timebase Status 500 us per division Channel 1 Reference Acquisition Status Waveform Trigger rising edge channel 1 1 56 V Waveform window position in memory Trigger position in memory Trigger position in waveform window Figure 7 Oscilloscope Display ...

Страница 31: ...cope Softkey Menus When one of the oscilloscope front panel keys turns on a menu you can use the five softkeys to choose items from the menu Some common menu item choices are Figure 8 Softkey Menus Accesses the next page of items in the menu Accesses the previous page of items in the menu ...

Страница 32: ...nu On Off front panel key turns off the menu or turns on the last accessed menu on again The Menu Display item in the Display menu lets you select the amount of time menus are displayed see To change the menu display time on page 62 Returns to the previous menu in the hierarchy ...

Страница 33: ...y is green the oscilloscope is acquiring data To stop acquiring data press Run Stop When stopped the last acquired waveform is displayed When the Run Stop key is red data acquisition is stopped To start acquiring data press Run Stop To capture and display a single acquisition whether the oscilloscope is running or stopped press Single After capturing and displaying a single acquisition the Run Sto...

Страница 34: ...elp The oscilloscope has built in quick help information To access the built in help 1 Press and hold the front panel key softkey or pushable knob on which you would like quick help information The built in help is available in 11 different languages see Setting the Language Menu and Help on page 128 ...

Страница 35: ...ies Oscilloscopes User s Guide 35 Securing the Oscilloscope To secure a 1000B Series oscilloscope to its location you can use a Kensington lock or the security loop Security loop Hole for Kensington lock Figure 10 Securing the Instrument ...

Страница 36: ...36 Keysight 1000B Series Oscilloscopes User s Guide 1 Getting Started ...

Страница 37: ...ontal Controls 38 Using the Vertical Controls 45 Using Math Function Waveforms 54 Using Reference Waveforms 58 Changing the Display Settings 60 This chapter describes how to use the horizontal and vertical controls channel settings math waveforms reference waveforms and display settings ...

Страница 38: ...setting using the center of the screen as a reference The horizontal position knob changes the position of the trigger point relative to the center of the screen The Horiz key displays the Horizontal menu which lets you display the zoomed delayed time base change the time base mode and display the sample rate Figure 12 shows the screen icon descriptions and control indicators Figure 11 Horizontal ...

Страница 39: ...oscilloscope s sample rate see Memory Depth and Sample Rate on page 69 The time div setting changes in a 1 2 5 step sequence The time div setting is also known as the sweep speed Horizontal scale setting Sample rate Displayed waveform window position in memory Trigger position in memory Trigger position in waveform window Figure 12 Status Bar Trigger Position and Horizontal Scale Control Indicator...

Страница 40: ...ak detect acquisition is used so that no data is missed even the though the Acquire menu may show a different acquisition mode setting The oscilloscope acquires sufficient data for the pre trigger part of the display then waits for the trigger When the trigger occurs the oscilloscope continues to capture data for the post trigger part of the display When using the Slow Scan mode to view low freque...

Страница 41: ...ush the horizontal scale knob or press Horiz key followed by the Zoom softkey in the Horizontal menu 2 When the zoomed time base is ON The top half of the display shows the original waveform and the portion being magnified The horizontal scale knob changes the magnification widens or narrows the area of magnification The horizontal position knob moves the area of magnification forward and backward...

Страница 42: ...ys channel 1 on the horizontal axis and channel 2 on the vertical axis The oscilloscope uses the untriggered sample acquisition mode and waveform data is displayed as dots The sampling rate can vary from 4 kSa s to 100 MSa s and the default sampling rate is 1 MSa s Y T Amplitude vs time This is the typical horizontal time base setting X Y Channel 2 X axis vs Channel 1 Y axis see X Y Format on page...

Страница 43: ...Displaying Data 2 Keysight 1000B Series Oscilloscopes User s Guide 43 Figure 14 X Y Display Format Showing Out of Phase Waveforms ...

Страница 44: ...rsor measurements Mask testing Math function waveforms Reference waveforms Zoomed time base display Displaying waveforms as vectors Horizontal position knob Trigger controls To view the sample rate 1 Press Horiz 2 In the Horizontal menu the Sa Rate menu item displays the sample rate used for the current horizontal scale setting See Also Memory Depth and Sample Rate on page 69 ...

Страница 45: ...keys turn waveforms on or off and display or hide their menus The vertical scale knobs change the amplitude per division setting for a waveform using either ground or the center of the screen as a reference depending on a preference setting The vertical position knobs change the vertical position of the waveform on the screen Figure 15 Vertical Controls Scale knobs Position knobs ...

Страница 46: ...the screen is used as a reference depending on the Expand Reference preference setting see To select the vertical scale reference level on page 135 The center of screen reference is not available for math function or reference waveforms Push its vertical scale knob to toggle between vernier fine scale adjustment and normal adjustment With vernier adjustment the amplitude div setting changes in sma...

Страница 47: ...ed in the lower left hand corner of the screen To specify channel coupling 1 If the channel s menu is not currently displayed press the channel key 1 2 3 or 4 2 In the Channel menu press Coupling 3 Continue pressing the Coupling softkey or turn the entry knob to select between DC Passes both DC and AC components of the input waveform to the oscilloscope See Figure 16 You can quickly measure the DC...

Страница 48: ...48 Keysight 1000B Series Oscilloscopes User s Guide 2 Displaying Data Figure 16 DC Coupling Control Figure 17 AC Coupling Control DC Coupling DC Coupling Status AC Coupling AC Coupling Status ...

Страница 49: ...t important to its analysis the bandwidth limit control can be used to reject frequencies above 20 MHz See Figure 19 and Figure 18 1 If the channel s menu is not currently displayed press the channel key 1 2 3 or 4 2 In the Channel menu press BW Limit to toggle the bandwidth limit setting ON and OFF Figure 18 BW Limit Control OFF Bandwidth limit OFF ...

Страница 50: ... that the measurement results reflect the actual voltage levels at the probe tip 1 If the channel s menu is not currently displayed press the channel key 1 2 3 or 4 2 In the Channel menu press Probe 3 Continue pressing the Probe softkey or turn the entry knob to select the appropriate attenuation factor To use a digital filter You can apply a digital filter to the sampled waveform data 1 If the ch...

Страница 51: ...r The horizontal scale is 50 ms div or higher To change the Volts Div control sensitivity When you need to adjust the amplitude div setting in smaller increments you can change the sensitivity ofthe vertical scale control 1 If the channel s menu is not currently displayed press the channel key 1 2 3 or 4 2 In the Channel menu press Volts Div to toggle between LPF Low Pass Filter HPF High Pass Filt...

Страница 52: ...djust the vertical scale on page 46 To invert a waveform You can invert a waveform with respect to the ground level 1 If the channel s menu is not currently displayed press the channel key 1 2 3 or 4 2 In the Channel menu press Invert to toggle between ON and OFF Figure 20 and Figure 21 show the changes before and after inversion Figure 20 Waveform Before Inversion ...

Страница 53: ...Displaying Data 2 Keysight 1000B Series Oscilloscopes User s Guide 53 Figure 21 Waveform After Inversion ...

Страница 54: ...ematical result can be measured using the grid and cursor controls The amplitude of the math waveform can be adjusted using a menu item selection in the Math menu and the entry knob The adjustment range is in a 1 2 5 step from 0 1 to 1000 The math scale setting is shown at the bottom of the display To add subtract or multiply waveforms 1 Press Math 2 In the Math menu press Operate Figure 22 Math S...

Страница 55: ...for analyzing vibration To display a waveform s FFT 1 Press Math 2 In the Math menu press Operate 3 Continue pressing the Operate softkey or turn the entry knob to select FFT 4 In the FFT menu press Source and continue pressing the softkey to select the desired input channel 5 Press Window and continue pressing the softkey or turn the entry knob to select the desired window There are four FFT wind...

Страница 56: ...suring Rectangle Best frequency resolution worst magnitude resolution This is essentially the same as no window Transients or bursts the waveform levels before and after the event are nearly equal Equal amplitude sine waves with fixed frequencies Broadband random noise with a relatively slow varying spectrum Hanning Hamming Better frequency poorer magnitude accuracy than Rectangular Hamming has sl...

Страница 57: ...r the resolution NOTE Nyquist Frequency and Aliasing in the Frequency Domain The Nyquist frequency is the highest frequency that any real time digitizing oscilloscope can acquire without aliasing This frequency is half of the sample rate Frequencies above the Nyquist frequency will be under sampled which causes aliasing The Nyquist frequency is also called the folding frequency because aliased fre...

Страница 58: ...rence set the waveform s scale and position as desired These settings will become the reference waveform s defaults 2 Press Ref 3 In the REF menu press Source and continue pressing the softkey or turn the entry knob to select the waveform you want to save 4 Press Location to choose Internal 5 Press Save To export or import reference waveforms To export or import from external storage when a USB dr...

Страница 59: ... navigate the directory hierarchy on page 117 6 In the Save or Import menu To export the waveform press New File enter the filename see To edit folder file names on page 118 and press Save To load the selected waveform wfm file press Import To return the reference waveform to its default scale 1 Press Ref 2 In the REF menu press Reset The scale and position of the waveform as originally saved are ...

Страница 60: ...60 Keysight 1000B Series Oscilloscopes User s Guide 2 Displaying Data Changing the Display Settings To display waveforms as vectors or dots 1 Press Display Figure 24 Display Key ...

Страница 61: ...turn the entry knob to adjust the waveform intensity To change the grid 1 Press Display 2 In the Display menu press Grid and continue pressing the softkey or turn the entry knob to select between Vectors The oscilloscope connects the sample points by using digital interpolation Digital interpolation maintains linearity by using a sin x x digital filter The digital interpolation is suitable for rea...

Страница 62: ...mal or Inverted colors Inverted screen colors are sometimes useful when printing or saving screens To change the menu display time The menu display time is how long menus remain on the screen after a front panel key or softkey has been pressed 1 Press Display 2 In the Display menu press Menu Display and continue pressing the softkey or turn the entry knob to select 1 s 2 s 5 s 10 s 20 s or Infinit...

Страница 63: ...he Acquisition Mode 73 Choosing the Acquisition Mode 73 Recording Playing back Waveforms 78 Adjusting the Trigger Level 82 Choosing the Trigger Mode 84 Setting Other Trigger Parameters 90 Using the External Trigger Input 94 This chapter describes sampling and acquisition modes and how to set up triggers ...

Страница 64: ...ate Sampling Theory The Nyquist sampling theorem states that for a limited bandwidth band limited signal with maximum frequency fMAX the equally spaced sampling frequency fS must be greater than twice the maximum frequency fMAX in order to have the signal be uniquely reconstructed without aliasing fMAX fS 2 Nyquist frequency fN folding frequency Aliasing Aliasing occurs when signals are under samp...

Страница 65: ...s the lowest frequency at which input signal sine waves are attenuated by 3 dB 30 amplitude error At the oscilloscope bandwidth sampling theory says the required sample rate is fS 2fBW However the theory assumes there are no frequency components above fMAX fBW in this case and it requires a system with an ideal brick wall frequency response Figure 25 Alaising ...

Страница 66: ...above the fundamental frequency square waves are made up of sine waves at the fundamental frequency and an infinite number of odd harmonics and typically for 1 Ghz bandwidths and below oscilloscopes have a Gaussian frequency response Figure 26 Theoretical Brick Wall Frequency Response fS fN 3dB Attenuation Frequency 0dB ...

Страница 67: ... 5732EN pdf Oscilloscope Rise Time Closely related to an oscilloscope s bandwidth specification is its rise time specification Oscilloscopes with a Gaussian type frequency response have an approximate rise time of 0 35 fBW based on a 10 to 90 criterion An oscilloscope s rise time is not the fastest edge speed that the oscilloscope can accurately measure It is the fastest edge speed the oscilloscop...

Страница 68: ...Design A Handbook of Black Magic all fast edges have an infinite spectrum of frequency components However there is an inflection or knee in the frequency spectrum of fast edges where frequency components higher than fknee are insignificant in determining the shape of the signal fknee 0 5 signal rise time based on 10 90 thresholds fknee 0 4 signal rise time based on 20 80 thresholds 3 Use a multipl...

Страница 69: ...the time of the acquisition which is set according to the oscilloscope s horizontal time div scale sample rate number of samples time of acquisition For example when storing 10 us of data in 10 000 points of memory the actual sample rate is 1 GSa s Likewise when storing 1 s of data in 10 000 points of memory the actual sample rate is 10 kSa s The actual sample rate is displayed in the Horizontal m...

Страница 70: ... See Figure 28 Use the real time sampling mode when capturing non repetitive single shot or pulse waveforms The 1000B Series oscilloscopes provide real time sampling rates up to 500 MSa s when two channels are on or 1 GSa s when one channel is on To select the Real Time sampling mode 1 Press Acquire 2 In the Acquire menu select Sampling to choose the Real Time sampling mode In the real time sampli...

Страница 71: ...rigger Use the equivalent time sampling mode to capture repetitive high frequency signals at greater sample rates than are available in the real time sampling mode Do not use the equivalent time mode for single shot events or pulse waveforms The benefits of the equivalent time sampling mode are negligible when sample rates are the same as available in the real time sampling mode In the 1000B Serie...

Страница 72: ...72 Keysight 1000B Series Oscilloscopes User s Guide 3 Capturing Data 2 In the Acquire menu select Sampling to choose the Equ Time sampling mode ...

Страница 73: ... Guide 73 Choosing the Acquisition Mode The osilloscope can operate in normal average or peak detect acquisition modes You can choose the oscilloscope s acquisition mode in the Acquire menu accessed by pressing the Acquire front panel key Figure 30 Acquire Key ...

Страница 74: ... 2 In the Acquire menu press Acquisition 3 Continue pressing the Acquisition softkey or turn the entry knob to select Normal To select the Average acquisition mode In the Average acquisition mode acquisitions are made and the running average over the specified number of acquisitions is displayed Use the Average acquisition mode to remove random noise from the waveform and to improve measurement ac...

Страница 75: ...erage 4 Press Averages and turn the entry knob to select the desired number 2 4 8 16 32 64 128 or 256 To select the Peak Detect acquisition mode In Normal or Average acquisition modes at longer horizontal time div settings the oscilloscope s analog to digital converter samples at a rate that yields more samples than can be stored in a limited amount of oscilloscope memory Consequently samples are ...

Страница 76: ...stored This way you can capture narrow excursions on a signal at longer horizontal time div settings Because minimum and maximum values for a sample period are stored you can use the Peak Detect acquisition mode to avoid waveform aliasing To select the Peak Detect acquisition mode 1 Press Acquire 2 In the Acquire menu press Acquisition 3 Continue pressing the Acquisition softkey or turn the entry ...

Страница 77: ...nstead of dots and sine x x interpolation is on curved lines are drawn between sample points When sine x x interpolation is off straight lines are drawn The effects of sine x x interpolation are only noticeable when the horizontal scale is set to 20 ns or faster 1 Press Acquire 2 In the Acquire menu press Sinx x to turn sine x x interpolation OFF or ON ...

Страница 78: ...Record To select the source channel for recording 1 In the Sequence menu Acquire Sequence Mode Record press Source 2 Continue pressing the Source softkey or turn the entry knob to select the desired input channel or the mask test output To specify the mask test output see To set the mask test output condition on page 130 To select the number of frames to record 1 In the Sequence menu Acquire Seque...

Страница 79: ...ack To play back stop the recording 1 In the Sequence menu Acquire Sequence Mode Play back press Operate to play back or stop the recording To select continuous or one time play back 1 In the Sequence menu Acquire Sequence Mode Play back press Play Mode to toggle between To select the interval between played back frames 1 In the Sequence menu Acquire Sequence Mode Play back press Interval 2 Turn t...

Страница 80: ... a number from l to 1000 To store recorded waveforms To store recorded waveforms 1 Press Acquire 2 In the Acquire menu press Sequence 3 In the Sequence menu press Mode 4 Continue pressing the Mode softkey or turn the entry knob to select Storage To select the start frame 1 In the Sequence menu Acquire Sequence Mode Storage press Start Frame 2 Turn the entry knob to select a number from l to 1000 T...

Страница 81: ...er to select and load the waveform recording file See Using the Disk Manager on page 116 To import export recordings 1 Because you can only export and import waveform recordings from an external drive select the External location See To select internal external recording storage location on page 80 2 In the Sequence menu Acquire Sequence Mode Storage press Imp Exp 3 Use the Disk Manager to select ...

Страница 82: ...gger level with respect to the waveform except when using AC coupling or LF reject coupling modes Push the trigger Level knob to set the level at 50 of the signal s vertical amplitude To force a trigger To make an acquisition even if no valid trigger has been found 1 Press Force Trigger Forcing a trigger is useful for example when you want to display the DC voltage of a level signal The Force Trig...

Страница 83: ... Series Oscilloscopes User s Guide 83 When the oscilloscope s front panel is locked by a remote program shown by a red Rmt on the upper right part of the display pressing the Force Trigger key returns the front panel to Local control ...

Страница 84: ...o the right of the trigger point The oscilloscope provides these trigger modes To set up edge triggers 1 Press Menu 2 In the Trigger menu press Mode 3 Continue pressing the Mode softkey or turn the entry knob to select Edge 4 Then either push the entry knob or press Mode again 5 Press Source and continue pressing the softkey or turn the entry knob to select the waveform to trigger on Edge Can be u...

Страница 85: ...ode softkey or turn the entry knob to select Pulse 4 Then either push the entry knob or press Mode again 5 Press Source and continue pressing the softkey or turn the entry knob to select the waveform to trigger on 6 Press When and continue pressing the softkey or turn the entry knob to select the type of pulse to trigger on Rising edge Falling edge Both rising and falling edges CH1 CH2 The oscillo...

Страница 86: ...larity to toggle between 6 Press Sync and continue pressing the softkey or turn the entry knob to select what to trigger on 7 Press Standard to toggle between Normal polarity trigger on the negative edge of the sync pulse Inverted polarity trigger on the positive edge of the sync pulse NOTE Normal Polarity Sync triggers always occur on negative going horizontal sync pulses If the video waveform ha...

Страница 87: ...Capturing Data 3 Keysight 1000B Series Oscilloscopes User s Guide 87 NTSC Trigger on an NTSC video waveform PAL SECAM Trigger on a PAL or SECAM video waveform Figure 35 Line Synchronization ...

Страница 88: ...the Mode softkey or turn the entry knob to select Alternate 4 Then either push the entry knob or press Mode again 5 Press Select to select the channel to set up triggering on either CH1 or CH2 At this point the remaining items in the Trigger menu let you set up independent triggers for the selected channel For each source you can set up edge pulse width or video triggering You can also specify oth...

Страница 89: ...Capturing Data 3 Keysight 1000B Series Oscilloscopes User s Guide 89 Figure 37 Alternate Triggers ...

Страница 90: ...y knob to select one of these trigger sweep settings To set the trigger coupling Trigger coupling is used to filter low frequency signal components or DC offsets from the trigger path when they interfere with achieving stable triggers Trigger coupling is similar to channel coupling see page 47 but it only affects the triggering system and does not change how the signal is displayed To set the trig...

Страница 91: ... kHz cutoff is used to filter high frequency signal components from the trigger path when they interfere with achieving stable triggers To set the trigger high frequency reject coupling 1 Press Menu 2 In the Trigger menu press Set Up 3 In the Set Up menu press HF Reject to toggle between ON and OFF DC Sets the trigger coupling to DC AC Sets the trigger coupling to AC use for waveforms greater than...

Страница 92: ...oscilloscopes you can adjust the trigger sensitivity For example to reduce the influence of noise you can lower the trigger sensitivity by increasing the vertical change required to trigger To change the trigger sensitivity 1 Press Menu 2 In the Trigger menu press Set Up 3 In the Set Up menu press Sensitivity and turn the entry knob to adjust the sensitivity setting The trigger sensitivity can be ...

Страница 93: ...new trigger The oscilloscope will not trigger until the holdoff time has expired To specify a trigger holdoff 1 Press Menu 2 In the Trigger menu press Set Up 3 In the Set Up menu press Holdoff and turn the entry knob to adjust the holdoff setting To reset the trigger holdoff 1 In the Set Up menu select the Holdoff Reset menu item to return the trigger holdoff setting to the 100 ns minimum value Fi...

Страница 94: ...sight 1000B Series Oscilloscopes User s Guide 3 Capturing Data Using the External Trigger Input You can trigger on external inputs by selecting EXT as the trigger source in all trigger modes except Alternate ...

Страница 95: ...Measurements Displaying Automatic Measurements 96 Voltage Measurements 98 Time Measurements 101 Counter Frequency 106 Making Cursor Measurements 107 This chapter shows how to make automatic voltage measurements automatic time measurements and cursor measurements ...

Страница 96: ...ements Displaying Automatic Measurements You can use the Meas key to display automatic measurements The oscilloscope has 22 automatic measurements and a hardware frequency counter see Voltage Measurements on page 98 and Time Measurements on page 101 Figure 39 Meas Key ...

Страница 97: ...result is displayed as the measurement cannot be performed with the current oscilloscope settings A maximum of three measurements can be displayed at the bottom of the display When three measurements are displayed and you add a new one the measurements shift to the left pushing the first measurement result off screen See Also To display cursors for automatic measurements on page 110 To clear autom...

Страница 98: ...eak to Peak Voltage Vtop Top Voltage Vbase Base Voltage Vamp Amplitude Voltage Vtop Vbase Vavg Average Voltage Vrms Root Mean Square Voltage Overshoot Preshoot Vmax Maximum Voltage The maximum amplitude The most positive peak voltage measured over the entire waveform See Figure 40 on page 98 Figure 40 Voltage Measurement Points Vbase Vtop Overshoot Vmax Overshoot Preshoot Vpp Vmin Vamp ...

Страница 99: ...rm s flat top useful for square and pulse waveforms See Figure 40 on page 98 Vbase Base Voltage Voltage of the waveform s flat base useful for square and pulse waveforms See Figure 40 on page 98 Vamp Amplitude Voltage Vtop Vbase Voltage between Vtop and Vbase of a waveform See Figure 40 on page 98 Vavg Average Voltage The arithmetic mean over the entire waveform Vrms Root Mean Square Voltage The t...

Страница 100: ...opes User s Guide 4 Making Measurements Overshoot Defined as Vmax Vtop Vamp useful for square and pulse waveforms See Figure 40 on page 98 Preshoot Defined as Vmin Vbase Vamp useful for square and pulse waveforms See Figure 40 on page 98 ...

Страница 101: ... plus the hardware frequency counter Period Frequency Rise Time Fall Time Pulse Width Pulse Width Duty Cycle Duty Cycle Delay A B rising edges Delay A B falling edges Phase A B rising edges Phase A B falling edges Period Measures the period of a waveform Figure 41 Period and Frequency Measurements Period Time origin line 50 Top Base ...

Страница 102: ... frequency of a waveform See Figure 41 on page 101 Rise Time Measures the rise time of a waveform Fall Time Measures the fall time of a waveform See Figure 42 on page 102 Figure 42 Rise Time and Fall Time Measurements Vbase Time origin line 50 middle 90 upper 10 lower Falling edge Vtop Rising edge ...

Страница 103: ...e negative pulse width of a waveform See Figure 43 on page 103 Positive Duty Cycle Measures the positive duty cycle of a waveform Negative Duty Cycle Measures the negative duty cycle of a waveform Base Time origin line Amplitude 90 Top 50 10 Width 0 Volts Base Time origin line 50 Amplitude Width Top 0 Volts Figure 43 Positive Pulse Width and Negative Pulse Width Measurements ...

Страница 104: ... Measures the delay between two waveforms using the rising edges Delay Between Falling Edges Measures the delay between two waveforms using the falling edges See Figure 44 on page 104 Figure 44 Delay Measurements Delay from channel 1 to channel 2 falling edge Time origin line 50 Channel 2 Channel 1 50 ...

Страница 105: ...urce 2 expressed in degrees Negative phase shift values indicate that the rising edge of source 1 occurred after the rising edge of source 2 Phase Between Falling Edges Measures the phase between two waveforms using the falling edges See Figure 45 on page 105 Figure 45 Phase Measurements Phase Delay Source 1 Period 360 Phase from channel 1 to channel 2 rising edge Time origin line 50 Channel 2 Cha...

Страница 106: ...an measure frequencies from 5 Hz to the bandwidth of the oscilloscope The counter uses the trigger comparator to count the number of cycles within a period of time known as the gate time so the trigger level must be set correctly The frequency counter is not available in the Alternate trigger mode To turn the hardware frequency counter on or off 1 Press Meas 2 In the Measure menu press Counter to ...

Страница 107: ...urement modes Manual Gives you manually adjustable parallel cursors for measuring time or amplitude between cursors Track Gives you one or two manually adjustable cross hair cursors that track the points of a waveform measuring time and amplitude Auto Gives you automatically adjusted cursors for the most recently displayed voltage or time measurement OFF Cursors are tuned off ...

Страница 108: ...ing Measurements To use manually adjustable cursors You can set up two parallel manually adjustable cursors to make amplitude vertical or time horizontal measurements on a selected waveform 1 Press Cursors 2 In the Cursors menu press Mode Figure 46 Cursors Key ...

Страница 109: ...displayed are CurA CurB ΔX or ΔY difference between CurA and CurB values 1 ΔX when measuring time parameters shows the frequency associated with the time period To use tracking cross hair cursors You can set up one or two manually adjustable tracking cross hair cursors to make amplitude vertical and time horizontal measurements at different points of a selected channel s waveform 1 Press Cursors 2...

Страница 110: ...es displayed are B X B Y If both A and B cursors are used these values are also displayed ΔX difference between CurA and CurB time values 1 ΔX shows the frequency associated with the time value difference ΔY difference between CurA and CurB amplitude values To display cursors for automatic measurements 1 Press Cursors 2 In the Cursors menu press Mode 3 Continue pressing the Mode softkey or turn th...

Страница 111: ...ng Screens 121 This chapter describes how to save recall and print data The oscilloscope has internal nonvolatile memory locations for saving and recalling waveforms and setups The oscilloscope also has a rectangular USB host port on its front panel to which you can connect a USB drive for saving and recalling data Figure 47 USB Host Port on Front Panel ...

Страница 112: ...data from an external USB drive allow at least five seconds for the data transfer to complete To save and recall waveforms You can save recall oscilloscope waveforms and setups to from 10 internal nonvolatile memory locations in the oscilloscope You can also save recall waveforms and setups to an external USB drive when it is connected to a rectangular USB host port 1 Press Save Recall 2 In the St...

Страница 113: ...select the file you want to load see To navigate the directory hierarchy on page 117 c In the External menu To save the waveform press New File enter the filename see To edit folder file names on page 118 and press Save To load the selected waveform wfm file press Recall To save and recall oscilloscope setups You can save recall oscilloscope setups to from 10 internal nonvolatile memory locations ...

Страница 114: ... and press Save To recall the selected setup stp file press Recall To save screens to BMP or PNG format files You can save oscilloscope display screens in BMP or PNG format to an external USB drive when it is connected to a rectangular USB host port 1 Press Save Recall 2 In the Storage menu press Storage 3 Continue pressing the Storage softkey or turn the entry knob to select one of 4 To specify w...

Страница 115: ...e Storage softkey or turn the entry knob to select CSV 4 To specify the amount of data to be saved press Data Depth to toggle between Displayed and Maximum 5 To specify whether oscilloscope parameters be saved along with the data press Para Save to toggle between ON and OFF 6 Press External 7 Use the disk manager dialog to navigate to the folder where you want to save the file see To navigate the ...

Страница 116: ...isk Manager When a USB drive is connected to the front panel USB host port you can use the Disk Manager to select and name files and folders To access the Disk Mana menu 1 Press Save Recall 2 In the Storage menu press Disk Mana The Disk Manager screen appears It looks similar to Figure 49 Disk Manager ...

Страница 117: ...tory pane see To switch between files path and directory panes on page 117 Turn the entry knob to select folders Push the entry knob to navigate into the selected folder To create new folders 1 In the Disk Mana menu Save Recall Disk Mana press New Folder 2 Use the folder file naming dialog to enter the folder name See To edit folder file names on page 118 3 In the New Folder menu press Save Files ...

Страница 118: ...hen the cursor is in the keypad field When the cursor is in the keypad field push the entry knob to Choose an alphanumeric character for the name and move to the next name character On Aa change from upper to lower case characters on the keypad On En change from single byte to multi byte character entry fields Select the menu item to delete a character from the name To delete folders In the direct...

Страница 119: ...ame See To edit folder file names on page 118 4 In the Rename menu press Ok To delete files In the files pane see To switch between files path and directory panes on page 117 1 Turn the entry knob to select the file 2 Press Delete File to delete the selected file 3 Press Ok to confirm the deletion To recall files In the files pane see To switch between files path and directory panes on page 117 1 ...

Страница 120: ... Saving Recalling and Printing Data 3 Use the folder file naming dialog to edit the file name See To edit folder file names on page 118 4 In the Rename menu press Ok To display disk information 1 In the Disk Mana menu Save Recall Disk Mana press Disk info ...

Страница 121: ...sight 1000B Series Oscilloscopes User s Guide 121 Printing Screens You can print oscilloscope display screens to A PictBridge compliant printer connected to the square USB device port on the oscilloscope s back panel Figure 51 USB Device Port ...

Страница 122: ... the entry knob to select the desired number of copies 5 Press Print Quality and turn the entry knob to select the desired print quality 6 Press Date Print to turn date printing on the image ON or OFF To print with inverted screen colors 1 Press Print Figure 52 Print Key NOTE The back panel s square USB device port is also used for remote control of the oscilloscope so the PictBridge compliant pri...

Страница 123: ...1 Press Print 2 In the Print menu press the Print softkey ON This option changes the black background of display image to white This can be used to reduce the amount of black ink that takes to print the oscilloscope display images OFF This option prints the display image as shown on the screen Grayscale When this option is selected the traces are printed in shades of gray rather than in color Colo...

Страница 124: ...124 Keysight 1000B Series Oscilloscopes User s Guide 5 Saving Recalling and Printing Data ...

Страница 125: ...Utility Settings Displaying System Information 127 Turning Sound ON or OFF 127 Setting the Language Menu and Help 128 Performing Mask Tests 129 Setting Preferences 135 Running Self Calibration 137 This chapter describes oscilloscope settings found in the Utilities menu ...

Страница 126: ...126 Keysight 1000B Series Oscilloscopes User s Guide 6 Oscilloscope Utility Settings Figure 53 Utility Key ...

Страница 127: ...Info The system information contains Model number Serial number Software version Installed module information To exit press Run Stop Turning Sound ON or OFF To turn the oscilloscope s beeper sound on or off 1 Press Utility 2 In the Utilities menu press Sound to toggle between on and off Appears on the menu when sound is off press Sound to run the test Appears on the menu when sound is on press Sou...

Страница 128: ...ss Utility 2 In the Utilities menu press Language 3 Continue pressing the Language softkey or turn the entry knob to select the desired language You can select from the following languages Simplified Chinese Traditional Chinese Korean Japanese English German French Portuguese Spanish Italian Russian If quick help is unavailable in a particular language English is displayed ...

Страница 129: ...tility 2 In the Utilities menu press Mask Test To enable disable mask tests 1 In the Mask Test menu Utility Mask Test press Enable Test to toggle between OFF and ON To select the source channel for mask tests 1 In the Mask Test menu Utility Mask Test press Source 2 Continue pressing the Source softkey or turn the entry knob to select the desired input channel NOTE The Mask Test function is not ava...

Страница 130: ... 1 In the Mask Test menu Utility Mask Test press Msg Display to toggle between OFF and ON The message display shows the failed passed and total number of waveforms To set the mask test output condition 1 In the Mask Test menu Utility Mask Test press Output Appears on the menu when the test is stopped press Operate to run the test Appears on the menu when the test is running press Operate to stop t...

Страница 131: ...ses optical isolation An external circuit is required to use the signal Before connecting to an external circuit make sure the maximum voltage current does not exceed 400 V 100 mA The output device has no polarity limit and can be connected arbitrarily Fail A mask failure sets the output Fail A mask failure sets the output and causes a beep Pass A passing waveform sets the output Pass A passing wa...

Страница 132: ...he output condition occurs 1 In the Mask Test menu Utility Mask Test press Stop On Output to toggle between OFF and ON To set up masks You can create masks by adding horizontal and vertical margins to a signal You can save and load masks from internal memory or an external USB drive And you can export and import masks from an exteral USB drive Figure 56 Mask Pass Fail out ...

Страница 133: ...Setting press X Mask 2 Turn the entry knob to adjust the horizontal failure margin The margin can be set from 0 04 div to 4 00 div To adjust a mask s vertical failure margin 1 In the Mask menu Utility Mask Test MaskSetting press Y Mask 2 Turn the entry knob to adjust the vertical failure margin The margin can be set from 0 04 div to 4 00 div To create a mask using the failure margin settings 1 In ...

Страница 134: ...le See Using the Disk Manager on page 116 To export import masks 1 Because you can only export and import masks from an external drive select the External mask location See To select internal external mask storage location on page 134 2 In the Mask menu Utility Mask Test MaskSetting press Imp Exp 3 Use the Disk Manager to select the file and import or export the mask See Using the Disk Manager on ...

Страница 135: ...g the screen saver can extend the life of the LED backlight To select the vertical scale reference level When changing the vertical scale of a signal on the display the expansion or contraction takes place about the selected reference level To set the expand reference level 1 In the Preference menu Utility Preference press Expand Refer to toggle between See Also To adjust the vertical scale on pag...

Страница 136: ...er if there are auto detect problems you can manually choose the type of host that is or will be connected To select the USB device port function 1 In the Preference menu Utility Preference press USB Device to toggle between Computer Specifies the that the USB device port will be connected to a computer host PictBridge Specifies the that the USB device port will be connected to a PictBridge compli...

Страница 137: ... the best measurement accuracy The automatic calibration should be run when the ambient temperature changes by 5 C or more To run the oscilloscope s self calibration 1 Press Utility 2 In the Utilities menu press Self Cal 3 Follow the instructions on the Calibration screen NOTE Before performing the automatic calibration let the oscilloscope warm up at least 30 minutes Figure 58 Calibration Screen ...

Страница 138: ...138 Keysight 1000B Series Oscilloscopes User s Guide 6 Oscilloscope Utility Settings ...

Страница 139: ... s Guide 7 Reference Environmental Conditions 140 Measurement Category 141 Specifications and Characteristics 142 Cleaning the Oscilloscope 142 Contacting Keysight 142 This chapter contains reference information for the 1000B Series oscilloscopes ...

Страница 140: ...Degree 1 Pollution Degree Definitions Pollution Degree 1 No pollution or only dry non conductive pollution occurs The pollution has no influence Example A clean room or climate controlled office environment Pollution Degree 2 Normally only dry non conductive pollution occurs Occasionally a temporary conductivity caused by condensation may occur Example General indoor environment Pollution Degree 3...

Страница 141: ...appliances portable tools and similar equipment Measurement category III is for measurements performed in the building installation Examples are measurements on distribution boards circuit breakers wiring including cables bus bars junction boxes switches socket outlets in the fixed installation and equipment for industrial use and some other equipment for example stationary motors with permanent c...

Страница 142: ... power from the instrument 2 Clean the external surfaces of the instrument with a soft cloth dampened with a mixture of mild detergent and water 3 Make sure that the instrument is completely dry before reconnecting it to a power source Contacting Keysight Keysight Technologies contact information can be found at www keysight com find contactus CAUTION Do not use too much liquid in cleaning the osc...

Страница 143: ... protective earth contact You must not negate the protective action by using an extension cord power cable without a protective conductor grounding Grounding one conductor of a two conductor outlet is not sufficient protection Whenever it is likely that the ground protection is impaired you must make the instrument inoperative and secure it against any unintended operation Capacitors inside the in...

Страница 144: ...nstruction manual symbol the product is marked with this symbol when it is necessary for you to refer to the instruction manual in order to protect against damage to the product Hazardous voltage symbol Earth terminal symbol Used to indicate a circuit common connected to grounded chassis ...

Страница 145: ...e display 61 coarse adjustment 51 color printing 123 colors screen invert 62 comma separated value files 115 compensate probes 26 computer host USB device port setting 136 coordinates grid 62 counter frequency 3 counter hardware frequency 106 coupling trigger 90 cross hair cursors 109 CSV format files save data to 115 cursor measurements 3 44 107 cursors for automatic measurements 110 Cursors key ...

Страница 146: ...t screen colors 62 Italian language 128 J Japanese language 128 K Korean language 128 L language setting the 128 LED backlight 135 LED display 3 LF reject trigger coupling 91 line synchronization 87 loading data 112 Local function of FORCE key 83 log scale 56 low frequency probe compensation 26 low pass filter 51 M Manual cursor measurements 107 manually adjustable cursors 108 Mask Pass Fail out B...

Страница 147: ...n language 128 S safety notices 143 symbols 144 sample rate 3 44 sample rate and memory depth 69 sample rate oscilloscope 65 67 sampling mode 70 sampling rate 42 sampling theory 64 sampling overview 64 save data to CSV format files 115 save screens to BMP or PNG files 114 Save Recall key 112 saving data 112 screen colors invert 62 screen refresh rate 75 screen saver 135 screens saving to BMP or PN...

Страница 148: ...nce level 135 vertical scaling 50 vibration analyzing 55 video trigger 84 86 Vmax maximum voltage measurement 98 Vmin minimum voltage measurement 99 voltage measurements 3 44 98 107 Volts Div control sensitivity 51 Vpp peak to peak voltage measurement 99 Vrms root mean square voltage measurement 99 Vtop top voltage measurement 99 W warnings 143 waveform intensity 61 waveform math 54 waveform persi...

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