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Saluki DSO1000 User Manual

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DSO1000 Digital Storage Oscilloscope
User Manual
Saluki Technology Inc.

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  • Page 1 DSO1000 Digital Storage Oscilloscope User Manual Saluki Technology Inc.
  • Page 2  DSO1302 Digital Storage Oscilloscope  DSO1064 Digital Storage Oscilloscope  DSO1104 Digital Storage Oscilloscope  DSO1204 Digital Storage Oscilloscope  DSO1304 Digital Storage Oscilloscope DSO1000 Digital Storage Oscilloscope standard accessories:  Main Machine  Probe x2  USB cable  Power cable...
  • Page 3 Saluki. Saluki Tech owns the copyright of this document which should not be modified or tampered by any organization or individual, or reproduced or transmitted for the purpose of making profit without its prior permission, otherwise Saluki will reserve the right to investigate and affix legal liability of infringement.
  • Page 4 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Contacts Service Tel: 886.2.2175 2930 Website: www.salukitec.com Email: info@salukitec.com No. 367 Fuxing N Road, Taipei 105，Taiwan (R.O.C.) Address:...

  • Page 5: Table Of Contents

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Content Safety Tips ..................................... 7 1.1 General Safety Summary ..............................7 1.2 Safety Information................................8 1.3 System Symbols ................................8 1.4 System Terms .................................. 8 1.5 Product Scrapping ................................8 Overview ....................................9 2.1 Brief Introduction................................9 2.2 Help System ..................................
  • Page 6 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 6.8 Example 8: Using Slope Trigger to Capture Particular Slope Signal ................59 6.9 Example 9: Using Overtime Trigger to Measure Long Pulse Signal ................60 6.10 Example 10: Using Math Functions to Analyze Waveforms ................... 61 6.11 Example 11: Measuring Data Propagation Delay ......................

  • Page 7: Safety Tips

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 1 Safety Tips General Safety Summary Read the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To evade potential hazards, use this product only as specified. ...

  • Page 8: Safety Information

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Safety Information In order to ensure the correct using and the best efficient service, please carefully read the user’s manual. System Symbols These symbols may appear in this manual or on the instrument. Warning: “Waring” identifies conditions and actions that pose hazards to the users. Caution: “Caution”...

  • Page 9: Overview

    2 Overview Brief Introduction DSO1000 Series oscilloscopes cover the bandwidths from 60MHz to 300MHz, and provide the real-time and equivalent sample rates respectively up to 1GSa/s and 25GSa/s. In addition, they have maximum 2M memory depth for better observation of the waveform details, and 7 inch color TFT LCD as well as WINDOWS-style interfaces and menus for easy operation.
  • Page 10 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com The Help system provides three methods for you to find the information you want: context-sensitive, hyperlinks, and an index.  Context-Sensitive Push the HELP front-panel button and the oscilloscope displays information about the last menu displayed on the screen.

  • Page 11: Getting Started Guide

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 3 Getting Started Guide Installation To keep proper ventilation of the oscilloscope in operation, leave a space of more than 5cm away from the top and the two sides of the product. 3.1.1 Power Supply Use a power supply that delivers 90 to 240 V , 45 to 440 Hz.

  • Page 12: Probe Examination

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Probe Examination 3.3.1 Safety When using the probe, keep your fingers behind the guard on the probe body to avoid electric shock. Do not touch metallic portions of the probe head while it is connected to a voltage source. Connect the probe to the oscilloscope and connect the ground terminal to ground before you start any measurements.

  • Page 13: Probe Attenuation Setting

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com probe. Attach the probe tip to the PROBE COMP ~2V@1KHz connector and the reference lead to the PROBE COMP Ground connector. Display the channel and then press the AUTOSET button. Check the shape of the displayed waveform. If necessary, use a nonmetallic screwdriver to adjust the variable capacity of your probe until the shape of the waveform turns to be the same as the above figure.

  • Page 14: Self Calibration

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Self Calibration The self calibration routine helps optimize the oscilloscope signal path for maximum measurement accuracy. You can run the routine at any time but should always run it if the ambient temperature changes by 5℃ or more. For a more accurate calibration, please power on the oscilloscope and wait for 20 minutes until it has adequately warmed To compensate the signal path, disconnect any probes or cables from the front-panel input connectors.

  • Page 15: Main Feature Description

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 4 Main Feature Description This chapter provides some general information that you need to learn before using an oscilloscope. It contains: Oscilloscope setup Trigger Data acquisition Waveform scaling and positioning Waveform measurement Oscilloscope Setup While operating the oscilloscope, you may often use three features: Autoset, saving a setup and recalling a setup.

  • Page 16: Data Acquisition

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com  Pulse Width Trigger can trigger normal or abnormal pulses that meet trigger conditions.  Slope Trigger uses the rise and fall times on the edge of signal for triggering.  Overtime Trigger happens after the edge of signal reaches the set time. ...

  • Page 17: Waveform Scaling And Positioning

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com  Normal: In this acquisition mode, the oscilloscope samples the signal in evenly spaced intervals to establish the waveform. This mode accurately represents signals in most time. However, it does not acquire rapid variations in the analog signal that may occur between two samples, which can result in aliasing and may cause narrow pulses to be missed.

  • Page 18: Waveform Measurement

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com The oscilloscope shows the horizontal scale as time per division in the scale readout. Since all active waveforms use the same time base, the oscilloscope only displays one value for all the active channels. Waveform Measurement The oscilloscope displays graphs of voltage versus time and can help to measure the displayed waveform.

  • Page 19: Basic Operation

    The figure below illustrates the front panel of the DSO1000 series digital oscilloscope. Front Panel of DSO1000...
  • Page 20 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com : XY : YT : Vectors : Dots : Gray indicates auto persistence; Green means persistence display is enabled. When the icon is set to green, the time for persistence display will be shown behind it. Acquisition Mode: Normal, Peak Detect or Average Trigger Status: The oscilloscope is acquiring pretriggered data.

  • Page 21: Horizontal System

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com : Pulse Width trigger, negative polarity. 13. Pop-up Prompt 14. Readout tells trigger level. 15. Icon indicates whether the waveform is inverted or not. 16. 20M Bandwidth Limit. If this icon lights up, it means the bandwidth limit is enabled, otherwise disabled. 17.
  • Page 22 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com HORIZONTAL POSITION Knob: Used to control the trigger position against the screen center. Push this button to reset the trigger point back to the screen center. Press the Knob: Used to set the horizontal position as zero. ...

  • Page 23: Vertical Controls

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com SEC/DIV Knob: Used to change the horizontal time scale so as to magnify or compress the waveform horizontally. If the waveform acquisition is stopped (by using the RUN/STOP or SINGLE SEQ button), the SEC/DIV control will expand or compress the waveform. In dual-window mode, push this knob to select major or minor window.
  • Page 24 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Options Settings Comments DC passes both DC and AC components of the input signal. Coupling AC blocks the DC component of the input signal and attenuates signals below 10Hz. Ground Ground disconnects the input signal. Unlimited Limits the bandwidth to reduce display noise;...
  • Page 25 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Operations Source Options Comments CH1-CH2 Subtract the Channel 2 waveform from the Channel 1 waveform. CH2-CH1 Subtract the Channel 1 waveform from the Channel 2 waveform. － CH3-CH4 Subtract the Channel 4 waveform from the Channel 3 waveform. CH4-CH3 Subtract the Channel 3 waveform from the Channel 4 waveform.
  • Page 26 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com  Use cursors to measure the spectrum. 5.3.1.1 Setting Time-domain Waveform It is necessary to set the time-domain (YT) waveform before using the FFT mode. Follow the steps below. Push the AUTOSET button to display a YT waveform. Turn the VERTICAL POSITION knob to vertically move the YT waveform to the center (zero division) so as to ensure the FFT will display a true DC value.
  • Page 27 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com The oscilloscope’s vertical response is a little bit larger than its bandwidth (60MHz, 70MHz, 100MHz 200MHz or 300MHz, depending on the model; or 20MHz when the Bandwidth Limit option is set to Limited). Therefore, the FFT spectrum can display valid frequency information above the oscilloscope bandwidth.
  • Page 28 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 5.3.1.3 Selecting FFT Window Using windows can eliminate the spectral leakage in the FFT spectrum. The FFT algorithm assumes that the YT waveform repeats all the time. When the number of cycles is integral (1, 2, 3 ...), the YT waveform starts and ends at the same amplitude and there are no discontinuities in the signal shape.
  • Page 29 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com The Math FFT function has three FFT Window options. There is a trade-off between frequency resolution and amplitude accuracy for each type of window. You shall determine which one to choose according to the object you want to measure and the source signal characteristics.

  • Page 30: Trigger Controls

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com You can use the FFT Zoom option to magnify the FFT spectrum horizontally without changing the sample rate. The available zoom factors are X1(default), X2, X5 and X10. When the zoom factor is set to X1 and the waveform is located at the center graticule, the left graticule line is at 0Hz and the right is at the Nyquist frequency.
  • Page 31 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Set to 50% Click “Utility->F6->f6->F6->Set to 50%” . The trigger level is set to the vertical midpoint between the peaks of the trigger signal. Force Trigger Used to complete an acquisition regardless of an adequate trigger signal. This button becomes useless if the acquisition is already stopped.
  • Page 32 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Options Settings Comments Select the components of the trigger signal applied to the trigger circuitry. AC: Blocks DC components and attenuates signals below 10Hz. Coupling Noice Reject DC: Passes all components of the signal. HF Reject HF Reject: Attenuates the high-frequency components above 80kHz.
  • Page 33 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Options Settings Comments With Pulse highlighted, the trigger occurs on pulses that meet the trigger condition (defined by the Pulse Source, When and Set Pulse Width options). Source Select the input source as the trigger signal. EXT5 ≠...
  • Page 34 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com ＝, ≠: Within a ±5% tolerance, triggers the oscilloscope when the signal pulse width is equal to or not equal to the specified pulse width. ＜, ＞: Triggers the oscilloscope when the source signal pulse width is less than or greater than the specified pulse width.
  • Page 35 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Options Settings Comments LF Reject Next Page Adjust the vertical window by setting two trigger levels. Select this option and press Vertical F3 to choose V1 or V2. ≠ When Select the trigger condition. <...
  • Page 36 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Options Settings Comments All Lines Line Number Sync Odd Field Select by F4, F5. Even Field All Fields Type Pulse Positive Polarity Negative ≠ When Select by F3. < > Set Pulse Pulse Width Push F4 to select.

  • Page 37: Menu And Option Buttons

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Options Settings Comments > Time 20ns to 10.0sec Press F4 to select this option. Turn the multi-functional knob to set the time span. Overtime Trigger: In Pulse Width trigger, you may sometimes be puzzled with the long time for trigger, as you do not need a complete pulse width to trigger the oscilloscope, but want the trigger occurs just upon the overtime point.
  • Page 38 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com  SAVE/RECALL: Displays the Save/Recall menu for setups and waveforms.  MEASURE: Displays the Measure menu.  ACQUIRE: Displays the Acquire menu.  UTIILITY: Displays the Utility menu.  CURSOR: Displays the Cursor menu. ...
  • Page 39 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Press ‘Next Page’ to recall the following menu. Options Settings Comments Setups Local Memory Storage Store the current setups to the USB disk or the memory of the oscilloscope. USB Flash Specify the memory location in which to store the current waveform settings or from which to recall the Memory 0 to 9 waveform settings.
  • Page 40 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Options Settings Comments Source Select the measure source. Measurement Type Frequency Calculate the waveform frequency by measuring the first cycle. Period Calculate the time of the first cycle. Mean Calculate the arithmetic mean voltage over the entire waveform. Pk-Pk Calculate the absolute difference between the greatest and the smallest peaks of the entire waveform.
  • Page 41 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Options Settings Comments The time between the first falling edge of source 1 and the last falling edge of source 2. The time between the first falling edge of source 1 and the last rising edge of source 2. The time between the first rising edge of source 1 and the last falling edge of source 2.
  • Page 42 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Acquire and accurately display most waveforms. Normal Mode Detect glitches and eliminate the possibility of aliasing. Peak Detect (Real Time) Reduce random or uncorrelated noise in signal display. The number of averages is Average selectable.
  • Page 43 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Input repeated First Acquisition Second Acquisition Third Acquisition Fourth Acquisition As shown above, acquire input signals (cycle repeatable) for more than once at a slow sample rate, arrange the sample points by the time they appear, then recover waveforms. 5.5.4 UTILITY System Push the UTILITY button to display the Utility Menu as follows.
  • Page 44 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Self Calibration: The self calibration routine can optimize the precision of the oscilloscope to fit the ambient temperature. To maximize the precision, you should perform the self calibration once the ambient temperature changes by 5℃ or more. Follow the instructions on the screen. Tip: Press any menu button on the front panel to remove the status display and enter a corresponding menu.
  • Page 45 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 5.5.6 DISPLAY The waveform display is affected by settings of the oscilloscope. A waveform can be measured once it is captured. The different styles to display a waveform on the screen give significant information about it. There are two modes to display waveforms Single-window and Dual-window.

  • Page 46: Fast Action Buttons

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 40 frames, 50 frames, Wave Intensity 0-15 16 ranks adjustable, with a progress bar to display. Fast Action Buttons  AUTOSET: Automatically set the oscilloscope controls to generate a usable display of the input signals. Refer to the following table for relative content.
  • Page 47 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Trigger Slope Adjusted Trigger Type Edge Trigger Video Sync Adjusted Trigger Video Standard Adjusted Vertical Bandwidth Full Vertical Coupling DC (if GND was chosen before); AC for the video signal; otherwise, unchanged VOLTS/DIV Adjusted The Autoset function examines all channels for signals and displays corresponding waveforms.

  • Page 48: Multi-Functional Buttons

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Falling Edge Display the falling edge. Undo Setup Let the oscilloscope recall the previous setup. Multi-functional Buttons F0: Hide/Show button. Push it to hide the menu options on the right side of the screen and give a full screen display of waveforms.

  • Page 49: Application Examples

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 6 Application Examples This chapter unfolds a further description on main features of the oscilloscope by giving eleven simplified application examples for reference to help solve your own test problems. Taking simple measurements Using AUTOSET Using the Measure menu to take auto measurements Taking cursor measurements Measuring ring frequency and ring amplitude...
  • Page 50 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com The oscilloscope will automatically set the waveform to a best display. If you want to further optimize the waveform display, you may manually adjust the vertical and horizontal controls until the waveform meets your particular requirement.

  • Page 51: Example 2: Taking Cursor Measurements

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Example 2: Taking Cursor Measurements You can use the cursor to quickly measure the time and amplitude of a waveform. Measuring Ring Time (convertible to Frequency) and Amplitude on Rising Edge of Pulse To measure the ring time on the rising edge of the pulse, follow the steps below. Push the CURSOR button to view the Cursor menu.
  • Page 52 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Measuring Pulse Width To analyze a pulse signal and to know its width, follow the steps below. Push the CURSOR button to view the Cursor menu. Push F1 the Type option button and select Time. Push F2 or F3 the Source option button and select CH1.
  • Page 53 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Measuring Rise Time of Pulse You may need to measure the rise time of the pulse in many application environments, usually, to measure the rise time between the 10% and 90% levels of the pulse waveform. To do so, follow the steps below. Turn the SEC/DIV knob to display the rising edge of the waveform.

  • Page 54: Example 3: Analyzing Input Signals To Eliminate Random Noise

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Example 3: Analyzing Input Signals to Eliminate Random Noise In certain circumstances, to display a noisy signal on the oscilloscope and to get its details, you may follow the steps below to analyze this signal. Observing Noisy Signal Press the ACQUIRE button to see the Acquire menu.

  • Page 55: Example 4: Capturing Single-Shot Signal

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Push the Average option button. Push the Averages option button and adjust the number of running averages to watch the change in the waveform display. Note: Averaging reduces random noise and let you view the signal details more easily. See the figure below for better understanding Example 4: Capturing Single-shot Signal You may refer to the following example to easily capture some aperiodic signals like pulses and glitches.

  • Page 56: Example 5: Using X-Y Mode

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Example 5: Using X-Y Mode Viewing Phase Differences between Two Channel Signals For example, you need to measure the change in a phase across a circuit network. Connect the oscilloscope with circuitry and view the input and output of the circuit in XY mode. Follow the steps below.

  • Page 57: Example 6: Triggering On Pulse Width

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Signal Horizontal Centering Example 6: Triggering on Pulse Width Triggering on a Specific Pulse Width While testing the pulse width of a signal in a circuit, you may need to verify the pulse width is consistent with the theoretic value.

  • Page 58: Example 7: Triggering On Video Signal

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com As shown in the above figure, you can get a stable waveform display if inputting a square wave at the frequency of 1KHz, with pulse width set to 500μs. Example 7: Triggering on Video Signal Assume that you are monitoring the video signals of a television to see if they are input normally, and the video signal is of an NTSC system.

  • Page 59: Example 8: Using Slope Trigger To Capture Particular Slope Signal

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Triggering on Video Lines To trigger on the video lines, follow the steps below. Push the TRIG MENU button to see the Trigger menu. Push F1 to select Video for the Type option. Push the Source option button to select CH1; push the Polarity option button to select Normal; push the Standard option button to select NTSC;...

  • Page 60: Example 9: Using Overtime Trigger To Measure Long Pulse Signal

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Push the TRIG MENU button to see the Trigger menu. Push F1 to select Slope for the Type option. Push the Source option button to select CH1; push the Slope option button to select Rising; push the Mode option button to select Auto;...

  • Page 61: Example 10: Using Math Functions To Analyze Waveforms

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Note: The difference between the overtime and the delay triggers is that the overtime trigger can identify the pulse you need according to your set time and trigger on any point of the pulse. In the other word, the overtime trigger occurs based on pulse identification.

  • Page 62: Example 11: Measuring Data Propagation Delay

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com As illustrated in the above figure, input a 1KHz sine wave from CH1 and a 1KHz square wave from CH2. Follow the above steps to set up the Math menu, and observe the subtracted waveform as shown in the figure below. Those in pink are added waveforms.
  • Page 63 Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com Push the CURSOR button to view the Cursor menu. Push the Type option button and select Time. Select Cursor S and turn V0 to place it on the active edge of the enable signal. Select Cursor E and turn V0 to place it on the data output transition (See the figure below).

  • Page 64: Troubleshooting

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 7 Troubleshooting Problem Settlement If the oscilloscope does not start up at power on, follow these steps: 1) Check the power cord to verify it has been connected properly; 2) Check the power on/off button to ensure it has been pushed; 3) Then restart the oscilloscope.

  • Page 65: General Care And Cleaning

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 8 General Care and Cleaning General Care Do not put or leave the device in a place where the LCD display will be exposed to direct sunlight for long periods of time. Note: To avoid damage to the oscilloscope or probes, do not expose them to sprays, liquids, or solvents. Cleaning Examine the oscilloscope and probes as often as operating conditions require.

  • Page 66: Harmful And Poisonous Substances Or Elements

    Tel: 886.2.2175 2930 Email: sales@salukitec.com www.salukitec.com 9 Harmful and Poisonous Substances or Elements Harmful and poisonous substances or elements Component Cr(Vi) PBDE Shell and Chassis Display Module Circuit Board Power Supply Electric Wire and Cable Assembly Connector Fastener and Installed Hardware Other Accessories (including probes) Others ‘X’...

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