Agilent 1000 Series Oscilloscopes User’s Guide
Notices © Agilent Technologies, Inc. 2008-2009 Warranty No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Agilent Technologies, Inc. as governed by United States and international copyright laws. The material contained in this document is provided “as is,” and is subject to being changed, without notice, in future editions.
Agilent 1000 Series Oscilloscopes—At a Glance The Agilent 1000 Series oscilloscopes are low- cost portable digital storage oscilloscopes (DSOs) that deliver these powerful features: • Two and four- channel, 60 MHz, 100 MHz, and 200 MHz bandwidth models. • Bright 5.7 inch QVGA (320 x 240) TFT color LCD display and small footprint (to save bench space). • Up to 2 GSa/s sample rate. • Up to 20 kpts memory. • Up to 400 wfms/s refresh rate. • Automatic voltage and time measurements (22) and cursor measurements.
In This Book This guide shows how to use the Agilent 1000 Series oscilloscopes. 1 Getting Started Describes the basic steps to take when first using the oscilloscope. 2 Displaying Data Describes how to use the horizontal and vertical 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.
Contents Agilent 1000 Series Oscilloscopes—At a Glance In This Book Figures Tables 1 3 4 13 15 Getting Started 17 Step 1. Inspect the package contents Step 2. Turn on the oscilloscope 18 19 Step 3. Load the default oscilloscope setup Step 4. Input a waveform 20 21 21 Step 5. Use Auto-Scale 22 Step 6. Compensate probes 24 Low Frequency Compensation High Frequency Compensation 24 25 Step 7.
Contents Securing the Oscilloscope 2 Displaying Data 33 35 Using the Horizontal Controls 36 To adjust the horizontal scale 37 To adjust the horizontal position 38 To display the zoomed time base 39 To change the horizontal time base (Y-T, X-Y, or Roll) To view the sample rate 42 40 Using the Vertical Controls 43 To turn waveforms on or off (channel, math, or reference) To adjust the vertical scale 44 To adjust the vertical position 44 To specify channel coupling 45 To specify a bandwidth limit 47 To
Contents Changing the Display Settings 59 To display waveforms as vectors or dots 59 To clear the display 60 To set waveform persistence 60 To adjust waveform intensity 60 To display graded waveform intensity 61 To change the grid 61 To change the menu display time 62 To adjust the grid brightness 62 To invert screen colors 62 To select screen persistence 63 3 Capturing Data 65 Overview of Sampling 66 Sampling Theory 66 Aliasing 66 Oscilloscope Bandwidth and Sample Rate Oscilloscope Rise Time 69 Oscillo
Contents Adjusting the Trigger Level 83 To adjust the trigger level 83 To force a trigger 84 Choosing the Trigger Mode 85 To set up edge triggers 85 To set up pulse width triggers 86 To set up video triggers 87 To set up pattern triggers 90 To set up alternate triggers 91 Setting Other Trigger Parameters 92 To set the trigger sweep 92 To set the trigger coupling 92 To set the trigger high-frequency reject coupling To change the trigger sensitivity 94 To specify a trigger holdoff 95 Using the External Trigg
Contents Voltage Measurements 100 Vmax (Maximum Voltage) 100 Vmin (Minimum Voltage) 101 Vpp (Peak-to-Peak Voltage) 101 Vtop (Top Voltage) 101 Vbase (Base Voltage) 101 Vamp (Amplitude Voltage = Vtop - Vbase) Vavg (Average Voltage) 101 Vrms (Root-Mean-Square Voltage) 102 Overshoot 102 Preshoot 102 101 Time Measurements 103 Period 103 Frequency 104 Rise Time 104 Fall Time 104 Positive Pulse Width 105 Negative Pulse Width 105 Positive Duty Cycle 105 Negative Duty Cycle 105 Delay Between Rising Edges 106 Dela
Contents 5 Saving, Recalling, and Printing Data 113 Saving and Recalling Data 114 To save and recall waveforms 114 To save and recall oscilloscope setups 115 To save screens to BMP or PNG format files 116 To save data to CSV format files 117 Using the Disk Manager 118 To switch between files, path, and directory panes To navigate the directory hierarchy 119 To create new folders 119 To edit folder/file names 120 To delete folders 121 To rename folders 121 To delete files 121 To recall files 122 To renam
Contents Performing Mask Tests 131 To enable/disable mask tests 131 To select the source channel for mask tests 131 To run/stop a mask test 132 To turn on/off the mask test message display 132 To set the mask test output condition 133 To stop a mask test on the output condition 133 To set up masks 133 Setting Preferences 136 To set up the screen saver 136 To select the vertical scale reference level 136 To select the USB device port function 137 Running Self-Calibration 7 138 Specifications and Character
Contents Index 12 153 Agilent 1000 Series Oscilloscopes User’s Guide
Figures Figure 1. Power Switch 19 Figure 2. [Default Setup] Key 20 Figure 3. [Auto-Scale] Key 22 Figure 4. Low Frequency Probe Compensation 24 Figure 5. High Frequency Probe Compensation 25 Figure 6. Front Panel 26 Figure 7. Softkey Menus 28 Figure 8. Oscilloscope Display 30 Figure 9. Run Control Keys 31 Figure 10. [Help] Key 32 Figure 11. Securing the Instrument 33 Figure 12. Horizontal Controls 36 Figure 13. Status Bar, Trigger Position, and Horizontal Scale Control Indicators 37 Figure 14.
Figures Figure 28. Figure 29. Figure 30. Figure 31. Figure 32. Figure 33. Figure 34. Figure 35. Figure 36. Figure 37. Figure 38. Figure 39. Figure 40. Figure 41. Figure 42. Figure 43. Figure 44. Figure 45. Figure 46. Figure 47. Figure 48. Figure 49. Figure 50. Figure 51. Figure 52. Figure 53. Figure 54. Figure 55. Figure 56.
Tables Table 1. Agilent 1000 Series Oscilloscope Models 3 Table 2. Auto-Scale Default Settings 23 Table 3. Front Panel Controls 27 Table 4. FFT Window Characteristics 55 Table 5. Specifications 142 Table 6. Acquisition System Characteristics 143 Table 7. Vertical System Characteristics 143 Table 8. Horizontal System Characteristics 145 Table 9. Trigger System Characteristics 146 Table 10. Display System Characteristics 146 Table 11. Measurement Features 147 Table 12. FFT Measurement Features 147 Table 13.
Tables 16 Agilent 1000 Series Oscilloscopes User’s Guide
Agilent 1000 Series Oscilloscopes User’s Guide 1 Getting Started Step 1. Inspect the package contents 18 Step 2. Turn on the oscilloscope 19 Step 3. Load the default oscilloscope setup 20 Step 4. Input a waveform 21 Step 5. Use Auto-Scale 22 Step 6. Compensate probes 24 Step 7. Become familiar with the Front Panel Controls 26 Step 8. Become familiar with the oscilloscope display 30 Step 9. Use the Run Control keys 31 Step 10.
1 Getting Started Step 1. Inspect the package contents 1 Inspect the shipping container for damage. Keep a damaged shipping container or cushioning material until you have inspected the contents of the shipment for completeness and have checked the oscilloscope mechanically and electrically. 2 Verify that you received the following items in the oscilloscope packaging: • Oscilloscope. • Power cord. • N2862A 10:1 10 M passive probes (60 MHz and 100 MHz models), quantity = number of oscilloscope channels.
Getting Started 1 Step 2. Turn on the oscilloscope The next few steps (turning on the oscilloscope, loading the default setup, and inputting a waveform) will provide a 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 (see Table 16 on page 149). WA R N I N G To avoid electric shock, be sure the oscilloscope is properly grounded.
1 Getting Started Step 3. Load the default oscilloscope setup You can recall the factory default setup any time you want to return the oscilloscope to its original setup. 1 Press the front panel [Default Setup] key. Push Push for Zoom to Zero Run Stop Menu Zoom Cursors Measure Acquire Display Help Single Push for 50% AutoScale Figure 2 Default Setup Save Recall Print Utility [Default Setup] Key 2 When the Default menu appears, press [Menu On/Off] to turn off the menu.
Getting Started 1 Step 4. Input a waveform 1 Input 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 maximum).
1 Getting Started Step 5. Use Auto-Scale The oscilloscope has an auto- scale feature that automatically sets the oscilloscope controls for the input waveforms present. Push Push for Zoom to Zero Run Stop Menu Zoom Cursors Measure Acquire Display Help Single Push for 50% AutoScale Figure 3 Default Setup Save Recall Print Utility [Auto-Scale] Key Auto- scale requires waveforms with a frequency greater than or equal to 50 Hz and a duty cycle greater than 1%.
Getting Started 1 The oscilloscope is configured to the following default control settings: Table 2 Auto-Scale Default Settings Menu Setting Horizontal time base Y-T (amplitude vs. time) Acquisition mode Normal Vertical coupling Adjusted to AC or DC according to the waveform.
1 Getting Started Step 6. Compensate probes Compensate probes to match your probe to the input channel. You should compensate a probe whenever you attach it for the first time to any input channel. Low Frequency Compensation For the supplied passive probes: 1 Set the Probe menu attenuation to 10X. If you use the probe hooktip, ensure a proper connection by firmly inserting the tip onto the probe.
Getting Started 1 High Frequency Compensation For the supplied passive probes: 1 Using the BNC adapter, connect the probe to a square wave generator. 2 Set the square wave generator to a frequency of 1 MHz, an amplitude of 3 Vp- p, and an output termination of 50. 3 Press the [Auto-Scale] front panel key.
1 Getting Started Step 7. Become familiar with the Front Panel Controls Before using the oscilloscope, familiarize yourself with the front 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.
Getting Started 1 The definitions of the front panel knobs, keys, and softkeys are as follows: Table 3 Front Panel Controls Controls Consists of these knobs and keys Measure controls [Measure] and [Cursors] front panel keys. Waveform controls [Acquire] and [Display] front panel keys. Menu controls [Save/Recall] and [Utility] front panel keys. Vertical controls Vertical position knobs, vertical scale knobs, channel ([1], [2], etc.) [Math], and [REF] front panel keys.
1 Getting Started Using the Oscilloscope Softkey Menus Figure 7 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: Accesses the next page of items in the menu. Accesses the previous page of items in the menu.
Getting Started 1 Returns to the previous menu in the hierarchy. The [Menu 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).
1 Getting Started Step 8.
Getting Started 1 Step 9. Use the Run Control keys There are two front panel keys for starting and stopping the oscilloscope’s acquisition system: [Run/Stop] and [Single]. Push Push for Zoom to Zero Run Stop Menu Zoom Cursors Measure Acquire Display Help Single Push for 50% AutoScale Figure 9 Default Setup Save Recall Print Utility Run Control Keys • When the [Run/Stop] key is green, the oscilloscope is acquiring data. To stop acquiring data, press [Run/Stop].
1 Getting Started Step 10. Access the built-in help The oscilloscope has built- in quick help information. To access the built- in help: 1 Press the [Help] front panel key. Push Push for Zoom to Zero Run Stop Menu Zoom Cursors Measure Acquire Display Help Single Push for 50% AutoScale Figure 10 Default Setup Save Recall Print Utility [Help] Key 2 Press the front panel key, softkey, or pushable knob on which you would like quick help information.
Getting Started 1 Securing the Oscilloscope To secure a 1000 Series oscilloscope to its location, you can use a Kensington lock or the security loop.
1 34 Getting Started Agilent 1000 Series Oscilloscopes User’s Guide
Agilent 1000 Series Oscilloscopes User’s Guide 2 Displaying Data Using the Horizontal Controls 36 Using the Vertical Controls 43 Using Math Function Waveforms 53 Using Reference Waveforms 57 Changing the Display Settings 59 This chapter describes how to use the horizontal and vertical controls, channel settings, math waveforms, reference waveforms, and display settings.
2 Displaying Data Using the Horizontal Controls The horizontal controls consist of: • The horizontal scale knob — changes the oscilloscope’s time per division 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 [Menu/Zoom] key — displays the Horizontal menu which lets you display the zoomed (delayed) time base, change the time base mode, and display the sample rate.
Displaying Data Displayed waveform window ([ ]) position in memory Trigger position in memory 2 Trigger position in waveform window Horizontal scale setting Sample rate Figure 13 Status Bar, Trigger Position, and Horizontal Scale Control Indicators To adjust the horizontal scale • Turn the horizontal scale knob to change the horizontal time per division (time/div) setting (and the oscilloscope’s sample rate — see “Memory Depth and Sample Rate” on page 72).
2 Displaying Data When the time/div is set to 50 ms/div or slower, the oscilloscope enters Slow Scan mode (see “Slow Scan Mode” below). When the horizontal scale is set to 20 ns or faster, the oscilloscope uses sine(x)/x interpolation to expand the horizontal time base. • Push the horizontal scale knob to toggle between the zoomed time base and the normal time base display (see “To display the zoomed time base” on page 39). The time/div setting is displayed in the status bar at the top left of the screen.
Displaying Data 2 • Push the horizontal position knob to “zero” the trigger point (in other words, move it to the center of the screen). To display the zoomed time base The zoomed time base (also known as delayed sweep time base), magnifies a portion of the original waveform display (now on the top half of the screen) and displays it in a zoomed time base on the bottom half of the screen.
2 Displaying Data Zoomed window Zoomed window view Figure 14 Zoomed Time Base Window To change the horizontal time base (Y-T, X-Y, or Roll) 1 Press [Menu/Zoom]. 2 In the Horizontal menu, press Time Base. 3 Continue pressing the Time Base softkey or turn the select between: 40 entry knob to 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 41.
Displaying Data Roll 2 In Roll mode, the waveform display rolls from right to left, and the minimum horizontal scale setting is 500 ms/div. No trigger or horizontal position control is available. Roll mode is used in applications similar to the ones for which Slow Scan mode is used (see “Slow Scan Mode” on page 38). X-Y Format This format compares the voltage level of two waveforms point by point. It is useful for studying phase relationships between two waveforms.
2 Displaying Data The following modes or functions are not available in X- Y format: • Automatic voltage or time measurements. • Cursor 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 [Menu/Zoom]. 2 In the Horizontal menu, the Sa Rate menu item displays the sample rate used for the current horizontal scale setting.
Displaying Data 2 Using the Vertical Controls The vertical controls consist of: • The channel ([1], [2], [3], and [4]), [Math], and [REF] front panel 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.
2 Displaying Data To adjust the vertical scale When an input channel waveform is on: • Turn its vertical scale knob to change the amplitude per division setting. The amplitude/div setting changes in a 1- 2- 5 step sequence from 2 mV/div to 5 V/div (with “1X” probe attenuation). Either ground or the center of the screen is used as a reference, depending on the “Expand Reference” preference setting (see “To select the vertical scale reference level” on page 136).
Displaying Data 2 Notice that, as you adjust the vertical position, a message showing the position of the ground reference relative to the center of the screen is temporarily displayed 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.
2 Displaying Data DC Coupling DC Coupling Status Figure 17 DC Coupling Control AC Coupling AC Coupling Status Figure 18 46 AC Coupling Control Agilent 1000 Series Oscilloscopes User’s Guide
Displaying Data 2 To specify a bandwidth limit When high frequency components of a waveform are not important to its analysis, the bandwidth limit control can be used to reject frequencies above 20 MHz. See Figure 20 and Figure 19. 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”.
2 Displaying Data 20 MHz Bandwidth Bandwidth ON Status Figure 20 BW Limit Control ON To specify the probe attenuation For correct measurements, you must match the oscilloscope’s probe attenuation factor settings with the attenuation factors of the probes being used. The probe attenuation factor setting changes the vertical scaling of the oscilloscope so that the measurement results reflect the actual voltage levels at the probe tip.
Displaying Data 0.1X For 1:10 probes. 1X For 1:1 probes. 10X For 10:1 probes. 100X For 100:1 probes. 1000X For 1000:1 probes. 2 To use a digital filter You can apply a digital filter to the sampled waveform data. 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 Digital Filter.
2 Displaying Data 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: Coarse The verical scale knob changes the amplitude/div setting in a 1- 2- 5 step sequence from 2 mV/div to 10 V/div (with “1X” probe attenuation).
Displaying Data Figure 21 Waveform Before Inversion Figure 22 Waveform After Inversion Agilent 1000 Series Oscilloscopes User’s Guide 2 51
2 Displaying Data To specify the channel units 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 Unit. 3 Continue pressing the Unit softkey or turn the between: 52 V Volts, used with voltage probes. A Amperes, used with current probes. W Watts. U Unknown.
Displaying Data 2 Using Math Function Waveforms The math functions control allows the selection of the math functions: • Add. • Subtract. • Multiply. • FFT (Fast Fourier Transform). The mathematical 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.
2 Displaying Data To add, subtract, or multiply waveforms 1 Press [Math]. 2 In the Math menu, press Operate. 3 Continue pressing the Operate softkey or turn the select “A + B”, “A - B”, or “A x B”. entry knob to 4 Press Source A, and continue pressing the softkey to select the desired input channel. 5 Press Source B, and continue pressing the softkey to select the desired input channel.
Displaying Data 5 Press Window, and continue pressing the softkey or turn the knob to select the desired window: 2 entry There are four FFT windows. Each window has trade- offs between frequency resolution and amplitude accuracy. What you want to measure and your source waveform characteristics help determine which window to use. Use the guidelines in Table 4 to select the best window.
2 Displaying Data 10 Use the horizontal position knob to adjust the frequency per division. The frequency scale is displayed on the screen. Use this to display the frequencies associated with the peaks in the FFT waveform. Figure 24 NOTE FFT Waveform FFT Resolution The FFT resolution is the quotient of the sampling rate and the number of FFT points (fS/N). With a fixed number of FFT points (1024), the lower the sampling rate, the better the resolution.
Displaying Data 2 Using Reference Waveforms You can save a reference waveform to an internal, nonvolatile memory location and then display it on the oscilloscope along with other captured waveforms. You can also export/import reference waveforms to/from an external USB drive when it is connected to the front panel USB host port. Reference waveforms are displayed (that is, turned on/off) just like other waveforms (see page 43). NOTE The reference waveform function is not available in X-Y mode.
2 Displaying Data 3 Presh Location to choose “External”. 4 Press Save or Import. 5 Use the disk manager dialog to navigate to the folder where you want to export the file or to select the file you want to import (see “To navigate the directory hierarchy” on page 119). 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 120), and press Save. • To load the selected waveform (.wfm file), press Import.
Displaying Data 2 Changing the Display Settings Push Push for Zoom to Zero Run Stop Menu Zoom Cursors Measure Acquire Display Help Single Push for 50% AutoScale Figure 25 Default Setup Save Recall Print Utility [Display] Key To display waveforms as vectors or dots 1 Press [Display]. 2 In the Display menu, press Type to toggle the waveform display between: Vectors The oscilloscope connects the sample points by using digital interpolation.
2 Displaying Data To clear the display 1 Press [Display]. 2 In the Display menu, press Clear. To set waveform persistence 1 Press [Display]. 2 In the Display menu, press Persist to toggle the waveform display between: Infinite Sample points remain displayed until the display is cleared or persistence is set to “OFF”. OFF To adjust waveform intensity 1 Press [Display]. 2 In the Display menu, press Intensity and turn the adjust the waveform intensity.
Displaying Data 2 To display graded waveform intensity While the oscilloscope is running, waveforms show data from multiple acquisitions. You can cause acquisition data to gradually disappear (similar to analog oscilloscopes). 1 Press [Display]. 2 In the Display menu, press Grading to toggle the waveform display between: ON The most recent data in the waveform is displayed at the highest intensity, and it gradually disappears over time. OFF All data in the waveform is displayed at the same intensity.
2 Displaying Data 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 “Infinite” menu display time. To adjust the grid brightness 1 Press [Display]. 2 In the Display menu, press GridBright and turn the adjust the grid brightness.
Displaying Data 2 To select screen persistence The screen persistence setting specifies what is displayed on the screen when acquisitions are stopped. To change the screen persistence setting: 1 Press [Display]. 2 In the Display menu, press Screen Persist to toggle between: When acquisitions are stopped, the screen may show data from many acquistions. When acquisitions are stopped, the last acquisition is displayed.
2 64 Displaying Data Agilent 1000 Series Oscilloscopes User’s Guide
Agilent 1000 Series Oscilloscopes User’s Guide 3 Capturing Data Overview of Sampling 66 Choosing the Acquisition Mode 73 Choosing the Acquisition Mode 73 Recording/Playing-back Waveforms 78 Adjusting the Trigger Level 83 Choosing the Trigger Mode 85 Setting Other Trigger Parameters 92 Using the External Trigger Input 96 This chapter describes sampling and acquisition modes and how to set up triggers.
3 Capturing Data Overview of Sampling To understand the oscilloscope’s sampling and acquisition modes, it is helpful to understand sampling theory, aliasing, oscilloscope bandwidth and sample rate, oscilloscope rise time, oscilloscope bandwidth required, and how memory depth affects sample rate.
Capturing Data Figure 26 3 Alaising Oscilloscope Bandwidth and Sample Rate An oscilloscope’s bandwidth is typically described as 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.
3 Capturing Data 0dB Attenuation -3dB fN fS Frequency Figure 27 Theoretical Brick-Wall Frequency Response However, digital signals have frequency components 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.
Capturing Data 3 0dB Attenuation -3dB Aliased frequency components fS/4 fN fS Frequency Limiting oscilloscope bandwidth (fBW) to 1/4 the sample rate (fS/4) reduces frequency components above the Nyquist frequency (fN). Figure 28 Sample Rate and Oscilloscope Bandwidth So, in practice, an oscilloscope’s sample rate should be four or more times its bandwidth: fS = 4fBW. This way, there is less aliasing, and aliased frequency components have a greater amount of attenuation.
3 Capturing Data An oscilloscope’s rise time is not the fastest edge speed that the oscilloscope can accurately measure. It is the fastest edge speed the oscilloscope can possibly produce. 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: 1 Determine the fastest edge speeds.
Capturing Data 3 Real-Time Sampling The 1000 Series oscilloscopes provide real- time sampling. In other words, waveforms are sampled at uniformly spaced intervals. See Figure 29. N = Waveform Sample is From 1 1 1 Figure 29 1 Trigger Time Real-Time Sampling Mode The 1000 Series oscilloscopes provide real- time sampling rates up to 2 GSa/s.
3 Capturing Data Memory Depth and Sample Rate The number of points of oscilloscope memory is fixed (except when divided between channel pairs), and there is a maximum sample rate associated with oscilloscope’s analog- to- digital converter; however, the actual sample rate is determined by the time of the acquisition (which is set according to the oscilloscope’s horizontal time/div scale).
Capturing Data 3 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).
3 Capturing Data 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 accuracy.
Capturing Data Figure 32 3 Noisy Waveform With Averaging The Average acquisition mode decreases the screen refresh rate. To select the Average acquisition mode: 1 Press [Acquire]. 2 In the Acquire menu, press Acquisition. 3 Continue pressing the Acquisition softkey or turn the select “Average”. entry knob to 4 Press Averages and turn the entry knob to select the desired number (2, 4, 8, 16, 32, 64, 128, or 256).
3 Capturing Data However, in the Peak Detect acquisition mode, acquisitions are made at the fastest sample rate, and the minimum and maximum values for the period associated with the actual sample rate are stored. This way, you can capture narrow excursions on a signal at longer horizontal time/div settings. Figure 33 Peak Detect Waveform Because minimum and maximum values for a sample period are stored, you can use the Peak Detect acquisition mode to avoid waveform aliasing.
Capturing Data 3 To turn OFF/ON sine(x)/x interpolation When sample points are displayed as vectors (instead 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”.
3 Capturing Data Recording/Playing-back Waveforms You can record waveforms from input channels or from the mask test output, with a maximum acquisition depth of 800 frames. The ability to record mask test output is especially useful for capturing abnormal waveforms over a long period of time. To record waveforms To record 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 Record.
Capturing Data 3 To start/stop recording 1 In the Sequence menu ([Acquire]>Sequence>Mode=Record), press Operate to start or stop recording. Appears on the menu when not recording; press Operate to start recording. Appears on the menu when recording; press Operate to stop recording. To select the interval between recorded frames 1 In the Sequence menu ([Acquire]>Sequence >Mode=Record), press Interval. 2 Turn the entry knob to select an interval from 1 ms to 1000 s.
3 Capturing Data To select continuous or one-time play-back 1 In the Sequence menu ([Acquire]>Sequence>Mode=Play back), press Play Mode to toggle between: Continuous play- back. One- time play- back. To select the interval between played-back frames 1 In the Sequence menu ([Acquire]>Sequence>Mode=Play back), press Interval. 2 Turn the entry knob to select an interval from 1 ms to 20 s. To select the start frame 1 In the Sequence menu ([Acquire]>Sequence>Mode=Play back), press Start Frame.
Capturing Data 3 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 “Storage”. entry knob to select 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 800.
3 Capturing Data To load a recording 1 In the Sequence menu ([Acquire]>Sequence>Mode=Storage), press Load. 2 If the External location has been selected, use the Disk Manager to select and load the waveform recording file. See “Using the Disk Manager” on page 118. 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 81.
Capturing Data 3 Adjusting the Trigger Level Trigger level knob Menu Force Figure 34 Trigger Controls To adjust the trigger level • Turn the trigger [Level] knob. Two things happen: • The trigger level value is displayed at the lower left- hand corner of the screen. • A line is displayed showing the location of the trigger level with respect to the waveform (except when using AC coupling or LF reject coupling modes).
3 Capturing Data To force a trigger To make an acquisition even if no valid trigger has been found: 1 Press [Force]. Forcing a trigger is useful, for example, when you want to display the DC voltage of a level signal. The [Force] key has no effect if the acquisition is already stopped. 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] key returns the front panel to Local control.
Capturing Data 3 Choosing the Trigger Mode The trigger determines when captured data should be stored and displayed. When a trigger is set up properly, it can convert unstable displays or blank screens into meaningful waveforms. When the oscilloscope starts to acquire a waveform, it collects enough data so that it can draw the waveform to the left of the trigger point. The oscilloscope continues to acquire data while waiting for the trigger condition to occur.
3 Capturing Data 5 Press Source and continue pressing the softkey or turn the knob to select the waveform to trigger on: CH1 - CH4 The oscilloscope input channel. EXT The external trigger input. EXT/5 The (5:1) attenuated external trigger input. AC Line The AC power line. 6 Press Slope and continue pressing the softkey or turn the to select the edge to trigger on: entry entry knob Rising edge. Falling edge. Both rising and falling edges.
Capturing Data 5 Press Source and continue pressing the softkey or turn the knob to select the waveform to trigger on: CH1 - CH4 The oscilloscope input channel. EXT The external trigger input. EXT/5 The (5:1) attenuated external trigger input. 6 Press When and continue pressing the softkey or turn the knob to select the type of pulse to trigger on: 3 entry entry Positive pulse greater than the width setting. Positive pulse less than the width setting.
3 Capturing Data 5 Press Polarity 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 has positive-going horizontal sync pulses, use the Inverted Polarity selection. 6 Press Sync and continue pressing the softkey or turn the to select what to trigger on: All Lines Trigger on all lines.
Capturing Data Figure 35 Line Synchronization Figure 36 Field Synchronization Agilent 1000 Series Oscilloscopes User’s Guide 3 89
3 Capturing Data To set up pattern triggers 1 Press [Menu]. 2 In the Trigger menu, press Mode. 3 Continue pressing the Mode softkey or turn the “Pattern”. 4 Then, either push the entry knob to select entry knob or press Mode again. 5 Press Channel and continue pressing the softkey or turn the entry knob to select the input channel whose value you want to specify: CH1 - CH4 The oscilloscope input channel. EXT The external trigger input. EXT/5 The (5:1) attenuated external trigger input.
Capturing Data 3 To set up alternate triggers The Alternate trigger mode splits the display horizontally and lets you trigger on two, non- synchronized signals. 1 Press [Menu]. 2 In the Trigger menu, press Mode. 3 Continue pressing the Mode softkey or turn the “Alternate”. 4 Then, either push the entry knob to select entry knob or press Mode again. 5 Press Select to select the channel to set up triggering on, either “CH1” or “CH2”.
3 Capturing Data Setting Other Trigger Parameters These are trigger system parameters that apply in all trigger modes. To set the trigger sweep Trigger sweep specifies whether acquisitions occur without a triggern or only with a trigger. 1 Press [Menu]. 2 In the Trigger menu, press Sweep. 3 Continue pressing the Sweep softkey or turn the one of these trigger sweep settings: entry knob to select Auto Acquire waveform even when no trigger occurs. Normal Acquire waveform when trigger occurs.
Capturing Data 4 Continue pressing the the Coupling softkey or turn the select one of these trigger coupling settings: 3 entry knob to DC Sets the trigger coupling to DC. AC Sets the trigger coupling to AC — use for waveforms greater than 50 Hz. LF Reject Sets the trigger coupling to low frequency reject (10 kHz cutoff).
3 Capturing Data To change the trigger sensitivity Trigger sensitivity specifies the vertical change that must occur in order for a trigger to be recognized. In the 1000 Series 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.
Capturing Data 3 To specify a trigger holdoff Trigger holdoff can be used to stabilize a waveform. The holdoff time is the oscilloscope's waiting period before starting a new trigger. The oscilloscope will not trigger until the holdoff time has expired. Figure 38 Trigger Holdoff 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 the holdoff setting.
3 Capturing Data Using the External Trigger Input You can trigger on external inputs by selecting “EXT” or “EXT/5” (5:1 attenuated) as the trigger source in all trigger modes except Alternate.
Agilent 1000 Series Oscilloscopes User’s Guide 4 Making Measurements Displaying Automatic Measurements 98 Voltage Measurements 100 Time Measurements 103 Counter (Frequency) 108 Making Cursor Measurements 109 This chapter shows how to make automatic voltage measurements, automatic time measurements, and cursor measurements.
4 Making Measurements Displaying Automatic Measurements You can use the [Measure] key to display automatic measurements. The oscilloscope has 22 automatic measurements and a hardware frequency counter (see “Voltage Measurements” on page 100 and “Time Measurements” on page 103).
Making Measurements 4 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 112. To clear automatic measurements from the display 1 Press [Measure]. 2 In the Measure menu, press Clear to clear all automatic measurements from the display.
4 Making Measurements Voltage Measurements There are 10 automatic voltage measurements: • Vmax (Maximum Voltage). • Vmin (Minimum Voltage). • Vpp (Peak- to- Peak Voltage). • Vtop (Top Voltage). • Vbase (Base Voltage). • Vamp (Amplitude Voltage = Vtop - Vbase). • Vavg (Average Voltage). • Vrms (Root- Mean- Square Voltage). • Overshoot. • Preshoot. Overshoot Vmax Vtop Vamp Vpp Vbase Vmin Figure 40 Preshoot Voltage Measurement Points Vmax (Maximum Voltage) The maximum amplitude.
Making Measurements 4 Vmin (Minimum Voltage) The minimum amplitude. The most negative peak voltage measured over the entire waveform. See Figure 40 on page 100. Vpp (Peak-to-Peak Voltage) Peak- to- peak voltage. See Figure 40 on page 100. Vtop (Top Voltage) Voltage of the waveform's flat top, useful for square and pulse waveforms. See Figure 40 on page 100. Vbase (Base Voltage) Voltage of the waveform's flat base, useful for square and pulse waveforms. See Figure 40 on page 100.
4 Making Measurements Vrms (Root-Mean-Square Voltage) The true root- mean- square voltage over the entire waveform. n xi2 RMS = i=1 --------------n Where: xi = value at ith point. n = number of points. Overshoot Defined as (Vmax- Vtop)/Vamp, useful for square and pulse waveforms. See Figure 40 on page 100. Preshoot Defined as (Vmin- Vbase)/Vamp, useful for square and pulse waveforms. See Figure 40 on page 100.
Making Measurements 4 Time Measurements There are 12 automatic time measurements 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.
4 Making Measurements Frequency Measures the frequency of a waveform. See Figure 41 on page 103. Rise Time Measures the rise time of a waveform. Time origin line Vtop 90% (upper) 50% (middle) 10% (lower) Vbase Rising edge Figure 42 Falling edge Rise Time and Fall Time Measurements Fall Time Measures the fall time of a waveform. See Figure 42 on page 104.
Making Measurements 4 Positive Pulse Width Measures the positive pulse width of a waveform. Time origin line Time origin line 90% Amplitude Base 0 Volts Base 0 Volts +Width -Width Figure 43 50% Amplitude 50% 10% Top Top Positive Pulse Width and Negative Pulse Width Measurements Negative Pulse Width Measures the negative pulse width of a waveform. See Figure 43 on page 105. Positive Duty Cycle Measures the positive duty cycle of a waveform.
4 Making Measurements Delay Between Rising Edges Measures the delay between two waveforms using the rising edges. Time origin line Channel 1 50% 50% Channel 2 Delay from channel 1 to channel 2 falling edge Figure 44 Delay Measurements Delay Between Falling Edges Measures the delay between two waveforms using the falling edges. See Figure 44 on page 106.
Making Measurements 4 Phase Between Rising Edges Measures the phase between two waveforms using the rising edges. Phase is the calculated phase shift from source 1 to source 2, expressed in degrees. Negative phase shift values indicate that the rising edge of source 1 occurred after the rising edge of source 2.
4 Making Measurements Counter (Frequency) The 1000 Series oscilloscopes have an integrated 6- digit hardware frequency counter. The counter operates on the currently selected trigger source and can 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.
Making Measurements 4 Making Cursor Measurements You can use the [Cursors] front panel key to select between these cursor measurement 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.
4 Making 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. 3 Continue pressing the Mode softkey or turn the “Manual”. entry knob to select 4 Press Type to toggle between: Time To use cursors to measure time parameters. Amplitude To use cursors to measure amplitude parameters.
Making Measurements 4 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 In the Cursors menu, press Mode. 3 Continue pressing the Mode softkey or turn the “Track”.
4 Making Measurements To display cursors for automatic measurements 1 Press [Cursors]. 2 In the Cursors menu, press Mode. 3 Continue pressing the Mode softkey or turn the “Auto”. entry knob to select In the “Auto” cursors mode: • Cursors appear for the most recently displayed automatic measurement (see “To display an automatic measurement” on page 98). • No cursors are displayed if there are no automatic measurements.
Agilent 1000 Series Oscilloscopes User’s Guide 5 Saving, Recalling, and Printing Data Saving and Recalling Data 114 Using the Disk Manager 118 Printing Screens 123 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 rectangular USB host ports on its front and back panel to which you can connect a USB drive (for saving and recalling data).
5 Saving, Recalling, and Printing Data Saving and Recalling Data Using the oscilloscope’s [Save/Recall] key, you can save and recall oscilloscope waveforms and setups, and you can save oscilloscope display screens and data.
Saving, Recalling, and Printing Data 3 Continue pressing the Storage softkey or turn the select “Waveform”. 5 entry knob to To save to or recall from internal storage: a Press Internal. b In the Internal menu, press Location. c Continue pressing the Location softkey or turn the select the desired internal storage location. entry knob to The “(N)” suffix shows that nothing has been saved to the location. The “(S)” suffix shows waveforms have been previously saved to the location.
5 Saving, Recalling, and Printing Data To save to or recall from internal storage: a Press Internal. b In the Internal menu, press Location. c Continue pressing the Location softkey or turn the select the desired internal storage location. entry knob to The “(N)” suffix shows that nothing has been saved to the location. The “(S)” suffix shows waveforms have been previously saved to the location. d Press Save or Recall.
Saving, Recalling, and Printing Data 5 4 To specify whether oscilloscope parameters be saved along with the screen, press Para Save to toggle between on and off. 5 Press External. 6 Use the disk manager dialog to navigate to the folder where you want to save the file (see “To navigate the directory hierarchy” on page 119). 7 In the External menu, press New File, enter the filename (see “To edit folder/file names” on page 120), and press Save.
5 Saving, Recalling, and Printing Data Using the Disk 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.
Saving, Recalling, and Printing Data 5 To switch between files, path, and directory panes 1 In the Disk Mana. menu ([Save/Recall]>Disk Mana.), press Explorer to switch between: Files Places the cursor in the files pane. Path Places the cursor in the path pane. Directories Places the cursor in the directories pane. In each of these panes, the entry knob is used to select items.
5 Saving, Recalling, and Printing Data To edit folder/file names Figure 50 Editing Folder/File Names in Disk Manager In the folder/file name edit dialog: • Select the dialog. • Turn the menu item to move the cursor between fields in the entry knob to select: • A character in the filename (when the cursor is in the name field). • A key (when the cursor is in the keypad field).
Saving, Recalling, and Printing Data 5 To delete folders In the directory pane (see “To switch between files, path, and directory panes” on page 119): 1 Turn the entry knob to select folders. 2 Press Del Folder to delete the selected folder. 3 Press Ok to confirm the deletion. To rename folders In the directory pane (see “To switch between files, path, and directory panes” on page 119): 1 Turn the entry knob to select the folder. 2 Press Rename.
5 Saving, Recalling, and Printing Data To recall files In the files pane (see “To switch between files, path, and directory panes” on page 119): 1 Turn the entry knob to select the file. 2 Press Recall to load the selected file. To rename files In the files pane (see “To switch between files, path, and directory panes” on page 119): 1 Turn the entry knob to select the file. 2 Press Rename. 3 Use the folder/file naming dialog to edit the file name. See “To edit folder/file names” on page 120.
Saving, Recalling, and Printing Data 5 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.
5 Saving, Recalling, and Printing Data Push Push for Zoom to Zero Run Stop Menu Zoom Cursors Measure Acquire Display Help Single Push for 50% AutoScale Figure 52 Default Setup Save Recall Print Utility [Print] Key Location To choose a PictBridge printer You can print to a PictBridge compliant printer connected to the (square) USB device port on the oscilloscope’s back panel. 1 Press [Print]. 2 Press Paper Size and turn the size. 3 Press File Type and turn the type.
Saving, Recalling, and Printing Data NOTE 5 The back panel’s (square) USB device port is also used for remote programming control of the oscilloscope, so the PictBridge compliant printing and remote programming features cannot be used at the same time. For more information on remote programming, see the Agilent 1000 Series Oscilloscopes Programmer’s Guide.
5 Saving, Recalling, and Printing Data To copy a screen to the printer 1 Press [Print]. 2 In the Print menu, press the Print softkey.
Agilent 1000 Series Oscilloscopes User’s Guide 6 Oscilloscope Utility Settings Displaying System Information 128 Turning Sound ON or OFF 128 Setting and Displaying the Date and Time 129 Setting the Language (Menu and Help) 130 Performing Mask Tests 131 Setting Preferences 136 Running Self-Calibration 138 This chapter describes oscilloscope settings found in the Utilities menu.
6 Oscilloscope Utility Settings Displaying System Information To display the oscilloscope’s system information: 1 Press [Utility]. 2 In the Utilities menu, press System 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.
Oscilloscope Utility Settings 6 Setting and Displaying the Date and Time To set and display the oscilloscope’s date and time: 1 Press [Utility]. 2 In the Utilities menu, press Date/Time. 3 In the Date/time menu, press: Display To turn the date/time display “ON” or “OFF”. Dates and times on the display can be useful when recording mask test output waveforms over long periods of time (see “Recording/Playing- back Waveforms” on page 78). To move the cursor between the date and time settings.
6 Oscilloscope Utility Settings Setting the Language (Menu and Help) To set the language used in menus and quick help: 1 Press [Utility]. 2 In the Utilities menu, press Language. 3 Continue pressing the Language softkey or turn the select the desired language. entry knob to You can select from the following languages: • Simplified Chinese. • Traditional Chinese. • Korean. • Japanese. • English. • German. • French. • Portuguese. • Spanish. • Italian. • Russian.
Oscilloscope Utility Settings 6 Performing Mask Tests The mask test function monitors waveform changes by comparing the waveform to a predefined mask. NOTE The Mask Test function is not available in the X-Y horizontal timebase mode. To access the Mask Test menu: 1 Press [Utility]. 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.
6 Oscilloscope Utility Settings To run/stop a mask test 1 In the Mask Test menu ([Utility]>Mask Test), press Operate to run or stop the test. 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 the test To turn on/off the mask test message display 1 In the Mask Test menu ([Utility]>Mask Test), press Msg Display to toggle between OFF and ON.
Oscilloscope Utility Settings 6 To set the mask test output condition 1 In the Mask Test menu ([Utility]>Mask Test), press Output. 2 Continue pressing the Output softkey to select the desired output condition: Fail Fail + Pass Pass + A mask failure sets the output. A mask failure sets the output and causes a beep. A passing waveform sets the output. A passing waveform sets the output and causes a beep.
6 Oscilloscope Utility Settings Figure 55 Mask Test Mask Setting To adjust a mask’s horizontal failure margin 1 In the Mask menu ([Utility] >Mask Test>MaskSetting), 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.
Oscilloscope Utility Settings 6 To select internal/external mask storage location 1 In the Mask menu ([Utility]>Mask Test>MaskSetting), press Location to toggle between: Internal Masks are saved and loaded from oscilloscope internal memory. External Masks are saved, loaded, exported, and imported from an external USB drive. To save a mask 1 In the Mask menu ([Utility]>Mask Test>MaskSetting), press Save.
6 Oscilloscope Utility Settings Setting Preferences The oscilloscope’s Preference menu lets you set screen saver, expand reference, and screen persistence options. To access the Preference menu: 1 Press [Utility]. 2 In the Utilities menu, press Preference. To set up the screen saver To set up the screen saver: 1 In the Preference menu ([Utility]>Preference), press Screen saver. 2 Continue pressing the Screen saver softkey or turn the select the desired time or to turn the screen saver off.
Oscilloscope Utility Settings 6 To select the USB device port function The (square) USB device port on the oscilloscope’s back panel can be used for: • Connecting to a PictBridge compliant printer. • Remote programming control of the oscilloscope. Normally, the USB device port auto- detects the type of host that is connected. However, if there are auto- detect problems, you can manually choose the type of host that is (or will be) connected.
6 Oscilloscope Utility Settings Running Self-Calibration The automatic calibration routine adjusts the internal circuitry of the oscilloscope for the best measurement accuracy. The automatic calibration should be run when the ambient temperature changes by 5 C or more. NOTE Before performing the automatic calibration, let the oscilloscope warm-up at least 30 minutes. To run the oscilloscope’s self- calibration: 1 Press [Utility]. 2 In the Utilities menu, press Self-Cal.
Agilent 1000 Series Oscilloscopes User’s Guide 7 Specifications and Characteristics Environmental Conditions 140 Measurement Category 141 Specifications 142 Characteristics 143 This chapter describes the 1000 Series oscilloscopes’ specifications and characteristics.
7 Specifications and Characteristics Environmental Conditions Overvoltage Category This product is intended to be powered by MAINS that comply to Overvoltage Category II, which is typical of cord- and- plug connected equipment. Pollution Degree The 1000 Series oscilloscope may be operated in environments of Pollution Degree 2 (or Pollution Degree 1). Pollution Degree Definitions Pollution Degree 1: No pollution or only dry, non- conductive pollution occurs. The pollution has no influence.
Specifications and Characteristics 7 Measurement Category The 1000 Series oscilloscope is intended to be used for measurements in Measurement Category I. Measurement Category Definitions Measurement category I is for measurements performed on circuits not directly connected to MAINS. Examples are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits.
7 Specifications and Characteristics Specifications NOTE All specifications are warranted. Specifications are valid after a 30-minute warm-up period and ±5 °C from last calibration temperature. Table 5 Specifications Name Value Bandwidth (-3 dB)1: DSO1024A, DSO1022A: 200 MHz DSO1014A, DSO1012A: 100 MHz DSO1004A, DSO1002A: 60 MHz DC vertical gain accuracy: 2 mV/div to 5 mV/div: ±4.0% full scale 10 mV/div to 5 V/div: ±3.
Specifications and Characteristics 7 Characteristics NOTE All characteristics are the typical performance values and are not warranted. Characteristics are valid after a 30-minute warm-up period and ±5 °C from last calibration temperature.
7 Specifications and Characteristics Table 7 Vertical System Characteristics (continued) Name Typical Value AC coupled1: DSO102xA: 5 Hz to 200 MHz DSO101xA: 5 Hz to 100 MHz DSO100xA: 5 Hz to 60 MHz Calculated rise time (= 0.35/bandwidth in GHz): DSO102xA: 1.8 ns DSO101xA: 3.5 ns DSO100xA: 5.8 ns Range: 2 mV/div to 10 V/div (1 M) Maximum Input: Maximum input voltage for analog inputs: • CAT I 300 Vrms, 400 Vpk; transient overvoltage 1.
Specifications and Characteristics Table 8 7 Horizontal System Characteristics Name Typical Value Range: DSO102xA: 1 ns/div to 50 s/div DSO101xA: 2 ns/div to 50 s/div DSO100xA: 5 ns/div to 50 s/div Timebase accuracy3: ±50 ppm from 0 °C to 30 °C ±50 ppm + 2 ppm per °C from 30 °C to 45 °C + 5 ppm * (years since manufacture) Vernier: 1-2-5 increments when off, 1% minor increments between major settings when on.
7 Specifications and Characteristics Table 9 Trigger System Characteristics Name Typical Value Sources: DSO1xx2A: Ch 1, 2, line, ext, ext/5 DSO1xx4A: Ch 1, 2, 3, 4, line, ext, ext/5 Modes (sweep): Auto, Normal (triggered), single Holdoff time: ~100 ns to 1.5 s Selections: Edge, pulse width, video, pattern, alternate AutoScale: Finds and displays all active channels, sets edge trigger mode on highest-numbered channel, sets vertical sensitivity on channels, time base to display ~2.0 periods.
Specifications and Characteristics Table 11 7 Measurement Features Name Typical Value Automatic measurements: Measurements are continuously updated. Cursors track last selected measurement.
7 Specifications and Characteristics Table 13 Storage Name Typical Value Save/Recall internal: 10 setups and 10 waveforms can be saved and recalled using internal non-volatile memory locations. 1 reference waveform can be saved and recalled using an internal volatile memory location for visual comparisons. Save/Recall external USB flash drive: USB 2.0 compliant host ports on front and rear panel compatible with full-speed USB flash drives. • Setups: STP saved and recalled.
Specifications and Characteristics Table 15 7 General Characteristics Name Typical Value Physical size: 32.46 cm wide x 15.78 cm high x 12.92 cm deep Weight, net: DSO1xx2A: 2.93 kg (6.46 lbs) DSO1xx4A: 3.03 kg (6.68 lbs) Weight, shipping: DSO1xx2A: approximately 4.75 kg (10.47 lbs) DSO1xx4A: approximately 4.87 kg (10.
7 Specifications and Characteristics Table 17 Environmental Characteristics Name Typical Value Ambient temperature: Operating 0 °C to +40 °C Non-operating –20 °C to +60 °C Humidity: Operating 90% RH (non-condensing) at +40 °C for 24 hr Non-operating 60% RH (non-condensing) at +60 °C for 24 hr Altitude: Operating to 4,400 m (15,000 ft) Non-operating to 15,000 m (49,213 ft) Vibration: Agilent class GP and MIL-PRF-28800F; Class 3 random Shock: Agilent class GP and MIL-PRF-28800F; (operating 30 g
Agilent 1000 Series Oscilloscopes User’s Guide A Safety Notices Warnings 151 Safety Symbols 152 This apparatus has been designed and tested in accordance with IEC Publication 1010, Safety Requirements for Measuring Apparatus, and has been supplied in a safe condition. This is a Safety Class I instrument (provided with terminal for protective earthing). Before applying power, verify that the correct safety precautions are taken (see the following warnings).
A Safety Notices • Whenever it is likely that the ground protection is impaired, you must make the instrument inoperative and secure it against any unintended operation. • Service instructions are for trained service personnel. To avoid dangerous electric shock, do not perform any service unless qualified to do so. Do not attempt internal service or adjustment unless another person, capable of rendering first aid and resuscitation, is present.
Index Numerics 50% trigger level, 83 A AC channel coupling, 45 AC coupling, 54 AC trigger coupling, 87, 93 accuracy, measurement, 74 acquisition mode, 73 actual sample rate, 72 add math function, 53 add waveforms, 54 aliasing, 56, 66, 76 alternate trigger, 85, 91 Alternate trigger mode, 108 ampere units, 52 amplitude/div setting, 44 at a glance, 3 attenuation, probe, 48 Auto cursor measurements, 109 auto-detect, USB device port setting, 137 automatic calibration, 138 automatic measurements, 98 automatic me
Index Fall Time measurement, 104 FFT (Fast Fourier Transform) math function, 53, 54 FFT resolution, 56 FFT windows, 55 field synchronization, 89, 91 file names, editing, 120 files, deleting, 121 files, loading, 122 files, renaming, 122 filter, digital, 49 fine scale adjustment, 44, 50 folder names, editing, 120 folders, creating new, 119 folders, deleting, 121 folders, renaming, 121 folding frequency, 66 force a trigger, 84 French language, 130 frequency counter, hardware, 3, 108 frequency domain, 54 Frequ
Index nonvolatile memory locations, 113 Normal acquisition mode, 73 normal adjustment, 44 NTSC standard, 87, 88 Nyquist frequency, 56 Nyquist sampling theory, 66 O oscilloscope bandwidth, 67 oscilloscope bandwidth required, 70 oscilloscope display, 30 oscilloscope rise time, 69 oscilloscope sample rate, 69 oscilloscope setups, saving and loading, 115 overshoot measurement, 102 overvoltage category, 140 P package contents, 18 PAL standard, 87, 88 parallel cursors, 110 passive probes, 18 pattern trigger, 8
Index system information, displaying, 128 T temperature at last calibration, 142 theory, sampling, 66 time measurements, 3, 42, 103, 109 Track cursor measurements, 109 tracking cross-hair cursors, 111 Traditional Chinese language, 130 transducer monitoring, 38 transient withstand capability, 141 trigger controls, 42 trigger coupling, 92 trigger high-frequency reject coupling, 93 trigger holdoff, 95 trigger holdoff, reset, 95 trigger level, 83, 108 trigger mode, 85 trigger position, 37 trigger sensitivity,
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