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5

Basic Operation

The front panel of the oscilloscope is divided into several functional areas. In this chapter, we will give a quick
overview of all control buttons and knobs on the front panel as well as the displayed information on the screen and
relative testing operations. The figure below illustrates the front panel of the DSO1000 series digital oscilloscope.

Front Panel of DSO1000

5.1

User Interface

1.

Saluki mark

2.

Display Format:

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Summary of Contents for DSO1000

Page 1: ...DSO1000 Digital Storage Oscilloscope User Manual Saluki Technology Inc ...

Page 2: ...scilloscope DSO1102 Digital Storage Oscilloscope DSO1202 Digital Storage Oscilloscope 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 CD ...

Page 3: ...nt 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 Product Quality Assurance The warranty period of the product is 36 months from the date of delivery The instrument manufacturer will r...

Page 4: ...l 886 2 2175 2930 Email sales salukitec com www salukitec com 4 Contacts Service Tel 886 2 2175 2930 Website www salukitec com Email info salukitec com Address No 367 Fuxing N Road Taipei 105 Taiwan R O C ...

Page 5: ...pe Setup 15 4 2 Trigger 15 4 3 Data Acquisition 16 4 4 Waveform Scaling and Positioning 17 4 5 Waveform Measurement 18 5 Basic Operation 19 5 1 User Interface 19 5 2 Horizontal System 21 5 3 Vertical Controls 23 5 4 Trigger Controls 30 5 5 Menu and Option Buttons 37 5 6 Fast Action Buttons 46 5 7 Multi functional Buttons 48 5 8 Signal Connectors 48 6 Application Examples 49 6 1 Example 1 Taking Si...

Page 6: ... 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 62 7 Troubleshooting 64 7 1 Problem Settlement 64 8 General Care and Cleaning 65 8 1 General Care 65 8 2 Cleaning 65 9 Harmful and Poisonous Substances or Elements 66 ...

Page 7: ...electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Connect the probe in a right way The probe ground lead is at ground potential Do not connect the ground lead to an elevated voltage Check all terminal ratings To avoid fire or shock hazard check all ratings a...

Page 8: ...d this mark personal injury may be caused to immediately Waning The term Warning is used in the manual to indicate that when you read this mark personal injury may not be caused to you immediately but you need to be cautionary Notice The term Notice is used in this manual to indicate that damages may be caused on this product or other properties 1 5 Product Scrapping Device Recycling We need extra...

Page 9: ... By using the three methods the oscilloscope provides context sensitive hyperlinks and an index you may master all operations on the device in quite a short time so as to greatly improve your efficiency in production and development Model Channels Bandwidth Sample Rate Memory Depth LCD DSO1082 2 80MHz 2GS s 64K 7 inch color DSO1102 2 100MHz 2GS s 64K 7 inch color DSO1202 2 200MHz 2GS s 64K 7 inch ...

Page 10: ...he help topics contain phrases marked with angle brackets such as Autoset They are links to other topics Turn the HELP SCROLL knob to move the highlight from one link to another Push the Show Topic option button to display the topic corresponding to the highlighted link Press the Back option button to return to the previous topic Index Push the front panel HELP button and then press the Index opti...

Page 11: ...d press the ON OFF button The default Probe option attenuation setting is 10X 3 2 2 Connect the oscilloscope Set the switch on the probe to 10X and connect the probe to Channel 1 on the oscilloscope First align the slot in the probe connector with the protuberance on the CH1 BNC and push to connect then turn to right to lock the probe in place after that connect the probe tip and reference lead to...

Page 12: ...do this 1 Use the vertical menu for example push the CH1 MENU button to set the Probe option attenuation factor 2 Press the UTILITY F6 F6 PROBE CHECK button to use the Probe Check Wizard and configure the probe option attenuation factor properly following menu prompts 3 4 Manual Probe Compensation Upon the first connection of a probe and an input channel you should manually perform this adjustment...

Page 13: ...ment 3 5 Probe Attenuation Setting Probes are of various attenuation factors which affect the vertical scale of the signal The Probe Check function is used to verify if the Probe attenuation option matches the attenuation of the probe As an alternative method to Probe Check you can push a vertical menu button such as the CH 1 MENU button and select the Probe option that matches the attenuation fac...

Page 14: ...outine 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 up To compensate the signal path disconnect any probes or cables from the front panel input connectors Then push the UTILITY button select the Do Self Cal option and follow the directions ...

Page 15: ...ling a Setup The oscilloscope can recall any of your saved setups and the default factory setup Default Setup The oscilloscope is preset for normal operations when it is shipped from the factory This is the default setup 4 2 Trigger The trigger determines when the oscilloscope begins to acquire data and display a waveform Once a trigger is properly set up the oscilloscope can convert unstable disp...

Page 16: ...nly view the effectively triggered waveforms In this mode the oscilloscope displays waveforms only after the first trigger To perform a single sequence acquisition push the SINGLE SEQ button Trigger Coupling Trigger Coupling determines which part of the signal will be delivered to the trigger circuit This can help to obtain a stable display of the waveform To use trigger coupling push the TRIG MEN...

Page 17: ...illoscope digitizes waveforms by acquiring the value of an input signal at discrete points The time base helps to control how often the values are digitized Use the SEC DIV knob to adjust the time base to a horizontal scale that suits your purpose 4 4 Waveform Scaling and Positioning The display of waveforms on the screen can be changed by adjusting their scale and position Once the scale changes ...

Page 18: ...and maximum values of a waveform and knew you had a scale factor of 50mV division you could easily calculate your peak to peak voltage as follows 6 divisions x 50mV division 300mV Cursor This method allows you to take measurements by moving the cursors Cursors always appear in pairs and the displayed readouts are just their measured values There are two kinds of cursors Amplitude Cursor and Time C...

Page 19: ...onal areas In this chapter we will give a quick overview of all control buttons and knobs on the front panel as well as the displayed information on the screen and relative testing operations The figure below illustrates the front panel of the DSO1000 series digital oscilloscope Front Panel of DSO1000 5 1 User Interface 1 Saluki mark 2 Display Format ...

Page 20: ...up it means the keyboard of the oscilloscope is locked by the host computer via USB control If this icon lights up it means the USB disk has been connected This icon lights up only when the USB slave interface is connected with the computer 6 Main Time Base Window 7 Display of window s position in data memory and data length 8 Window Time Base 9 Operating Menu shows different information for diffe...

Page 21: ...To perform this operation stop the acquisition and change the display format to XY The table below shows how to operate some controls in XY format Controls Usable or not in XY format CH1 VOLTS DIV and VERTICAL POSITION controls Set the horizontal scale and position CH2 VOLTS DIV and VERTICAL POSITION controls Continuously set the vertical scale and position Reference or Math Unusable Cursors Unusa...

Page 22: ... 1 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 Single window Mode Dual window Mode Full Screen ...

Page 23: ...de does not support the menu hiding function 5 2 1 Scan Mode Display Roll Mode With the SEC DIV control set to 80ms div or slower and the trigger mode set to Auto the oscilloscope works in the scan acquisition mode In this mode the waveform display is updated from left to right without any trigger or horizontal position control 5 3 Vertical Controls Vertical controls can be used to display and rem...

Page 24: ...to display a zero volt waveform Internally the channel input is connected with a zero volt reference level Fine Resolution In the fine resolution setting the vertical scale readout displays the actual VOLTS DIV setting The vertical scale changes only after you adjust the VOLTS DIV control and set to coarse Remove Waveform Display To remove a waveform from the screen first push the menu button to d...

Page 25: ...artletta and Blackman Zoom Use the FFT Zoom button to adjust the window size Scale x1 x2 x5 x10 Note All selected menus are highlighted in orange 5 3 1 Math FFT This chapter elaborates how to use the Math FFT Fast Fourier Transform You can use the Math FFT mode to convert a time domain YT signal into its frequency components spectrum and to observe the following types of signals Analyze harmonics ...

Page 26: ...etting fewer cycles the FFT spectrum will display a larger frequency range and reduce the possibility of FFT aliasing To set the FFT display follow the steps below 1 Push the MATH MENU button 2 Set the Operation option to FFT 3 Select the Math FFT Source channel In many situations the oscilloscope can also generate a useful FFT spectrum despite the YT waveform not being triggered This is especiall...

Page 27: ...he options to select the Source channel the Window algorithm and the FFT Zoom factor Only one FFT spectrum can be displayed at a time Math FFT Options Settings Comments Source CH1 CH2 Choose a channel to be the FFT source Window Hanning Flattop Rectangular Bartletta and Blackman Select a type of the FFT window For more information refer to Section 5 3 1 3 FFT Zoom X1 X2 X5 X10 Change the horizonta...

Page 28: ...e YT waveform starts and ends at the same amplitude and there are no discontinuities in the signal shape If the number of cycles is nonintegral the YT waveform starts and ends at different amplitudes and transitions between the start and end points will cause discontinuities in the signal that introduces high frequency transients Applying a window to the YT waveform changes the waveform so that th...

Page 29: ...ponents above the Nyquist frequency will be undersampled and displayed as lower frequency components that fold back from the Nyquist frequency These erroneous components are called aliases 5 3 1 5 Eliminating Aliases To eliminate aliases use the following methods Turn the SEC DIV knob to set a faster sample rate Because the Nyquist frequency increases as you increase the sample rate the aliased fr...

Page 30: ...T spectrum is magnified vertically to the marker M math waveform reference point on the left edge of the screen Turn the VERTICAL POSITION knob clockwise to move up the spectrum 5 3 1 7 Using Cursors to Measure FFT Spectrum You may use cursors to take two measurements on the FFT spectrum amplitude in dB and frequency in Hz Amplitude is referenced to 0db that equals 1VRMS here You may use cursors t...

Page 31: ...ger signal CH1 CH2 No matter the waveform is displayed or not a certain channel will be triggered EXT Does not display the trigger signal and allows a trigger level range of 1 6V to 1 6V EXT 5 Same as EXT option but attenuates the signal by a factor of 5 and allows a trigger level range of 8V to 8V AC Line Uses a signal derived from the power cord as the trigger source Slope Rising Falling Select ...

Page 32: ...SC PAL or SECAM standard video signal will be triggered The trigger coupling is preset to AC Source CH1 CH2 CH3 CH4 EXT EXT 5 Select the input source as the trigger signal Ext and Ext 5 use the signal applied to the EXT TRIG connector as the source Polarity Normal Inverted Normal Triggers on the negative edge of the sync pulse Inverted Triggers on the positive edge of the sync pulse Sync All Lines...

Page 33: ...dth 20ns to 10 0sec With Set Pulse Width highlighted by pressing F4 turn the multi functional knob to set the pulse width Polarity Positive Negative Select to trigger on positive or negative pulses Mode Auto Normal Select the type of trigger The Normal mode is best for most pulse width trigger applications Coupling AC DC Noise Reject HF Reject LF Reject Select the components of the trigger signal ...

Page 34: ... 6 Slope Trigger Judges trigger according to the time for rising or falling more flexible and accurate than the Edge trigger Options Settings Comments Slope Source CH1 CH2 CH3 CH4 EXT EXT5 Select the input source as the trigger signal Slope Rising Falling Select the slope type of signal Mode Auto Normal Select the type of trigger The Normal mode is best for most pulse width trigger applications Co...

Page 35: ...ch between two analog channels CH1 and CH2 so that the channels will generate Alter trigger signals through the trigger circuitry Options Settings Comments Alter Trigger Mode Auto Normal Select the type of trigger Channel CH1 CH2 Push an option such as CH1 select the channel trigger type and set the menu interface Below list options in submenus Alter Trigger allows CH1 CH2 CH3 and CH4 to select di...

Page 36: ... width Coupling AC DC Noise Reject HF Reject LF Reject Select by F5 Type Slope Slope Rising Falling Select the slope type of signal Mode Auto Normal Select the type of trigger The Normal mode is best for most pulse width trigger applications Coupling AC DC Noise Reject HF Reject LF Reject Selects the components of the trigger signal applied to the trigger circuitry Vertical V1 V2 Adjust the vertic...

Page 37: ...ger occurs just upon the overtime point This is called Overtime Trigger Options Settings Comments Type OT Source CH1 CH2 CH3 CH4 Select the trigger source Polarity Positive Negative Select to trigger on positive or negative pulses Mode Auto Normal Overtime τ Press F5 to select Overtime option and adjust V0 to set the time Coupling AC DC Noise Reject HF Reject LF Reject Selects the components of th...

Page 38: ...file F7 Open window setting logic analyzer and signal waveform generator 5 5 1 Save Recall Press the SAVE RECALL button to save or recall oscilloscope setups or waveforms The first page shows the following menu Options Settings Comments Waveforms Source CH1 CH2 CH3 CH4 MATH off Select a waveform display to store REF RefA RefB Select the reference location to store or recall a waveform Operation Sa...

Page 39: ...on selected in the Setup field Push the Default Setup button to initialize the oscilloscope to a known setup See below for waveform menus Note The oscilloscope will save the current settings if you wait 5 seconds after the last modification and it will recall these settings the next time you power on the oscilloscope 5 5 2 Measurement Push the MEASURE button to perform auto measurements There are ...

Page 40: ...rm 50 level 12 Width Measure the time between the first falling edge and the next rising edge at the waveform 50 level 13 Duty Measure the first cycle waveform Positive Duty Cycle is the ratio between positive pulse width and period 14 Duty Measure the first cycle waveform Negative Duty Cycle is the ratio between positive pulse width and period 15 Base Measure the highest voltage over the entire w...

Page 41: ... 2 32 FRF The time between the first rising edge of source 1 and the first falling edge of source 2 Off Do not take any measurement Use the knob V0 or the functional keys F3 F4 to select the type of measurement Taking Measurements For a single waveform or a waveform divided among multiple waveforms up to 8 automatic measurements can be displayed at a time The waveform channel must stay in an ON di...

Page 42: ... of 4µs div or slower Once you set the SEC DIV setting to 4µs div or faster the acquisition mode will change to Normal because the sample rate is fast enough that Peak Detect is unnecessary The oscilloscope does not display a message to tell you that the mode has been changed to Normal Average Use this mode to reduce random or uncorrelated noise in the signal to be displayed Acquire data in Normal...

Page 43: ... top left corner is highlighted Click on this icon and you can see the waveform pause for a while being saved You can find the saved waveform data under the pic_x folder in the USB disk Here X represents how many times you press the button Each press generates a corresponding folder For example press once and a folder pic_1 is generated press twice and two folders pic_1 pic_2 are generated Self Ca...

Page 44: ...e Off Voltage Time Track Select a measurement cursor and display it Voltage measures amplitude while Time measures time and frequency Source CH1 CH2 CH3 CH4 MATH REFA REFB Select a waveform to take the cursor measurement Use the readouts to show the measurement Select Cursor S E S indicates Cursor 1 E indicates Cursor 2 A selected cursor is highlighted which can be moved freely Both cursors can be...

Page 45: ...le Infinite Sets the time length to display each displayed sample point DSO Mode YT XY YT format shows the vertical voltage in relation to time horizontal scale XY format displays a dot between CH1 and CH2 each time when a sample is acquired where the voltage or current of CH1 determines the X coordinate of the dot horizontal and the voltage or current of CH2 determines the Y coordinate vertical F...

Page 46: ...et is one of the advantages digital oscilloscopes have When you push the AUTOSET button the oscilloscope will identify the type of waveform sine or square wave and adjust controls according to input signals so that it can accurately display the waveform of the input signal Functions Settings Acquire Mode Adjusted to Normal or Peak Detect Cursor Off Display Format Set to YT Display Type Set to Vect...

Page 47: ...ope determines that the signal is similar to a sine wave the oscilloscope displays the following options Sine Wave Options Details Multi cycle Sine Display multiple cycles that have appropriate vertical and horizontal scales Single cycle Sine Set the horizontal scale to display about one cycle of the waveform FFT Convert the input time domain signal to its frequency components and display the resu...

Page 48: ... to electrically match the probe to the oscilloscope input circuit The probe compensation ground and BNC shields connect to earth ground and are considered to be ground terminals To avoid damages do not connect a voltage source to any of these ground terminals 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 Push it ag...

Page 49: ...X Y mode 6 Triggering on a pulse width 7 Triggering on a video signal Observing triggers on video fields and video lines 8 Using Slope Trigger to capture a particular slope signal 9 Using Overtime Trigger to measure a long pulse signal 10 Using math functions to analyze waveforms 11 Measuring data propagation delay 6 1 Example 1 Taking Simple Measurements When you want to observe an unknown signal...

Page 50: ...h the MEASURE button to see the Measure menu 2 Turn the knob V0 to select the first unspecified option marked by red arrow press V0 or F6 to enter the submenu 3 Select CH1 for the Source option Then repeatedly push F3 or F4 to select measure items in the Type menu Push the back menu to go back to the measure interface Or turn and push V0 to select a measure item and go back to the measure interfac...

Page 51: ...the Source option button and select CH1 4 Push F4 to select a cursor If S is selected turn V0 to move Cursor S on the screen if E is selected turn V0 to move Cursor E if both are selected turn V0 to move them at the same time 5 Put Cursor S on the first peak of the ring 6 Put Cursor E on the second peak of the ring 7 At Delta displays the measured time and at Cursor S an Cursor E display the posit...

Page 52: ... F3 the Source option button and select CH1 4 Push F4 to select a cursor If S is selected turn V0 to move Cursor S on the screen if E is selected turn V0 to move Cursor E if both are selected turn V0 to move them at the same time 5 Place Cursor S on the rising edge of the pulse and Cursor E on the falling edge 6 Thus at Delta displays the measured time and at Cursor S and Cursor E displays the tim...

Page 53: ...ush the CH1 MENU button 4 Push the VOLTS DIV option button and select Fine Turn the VERTICAL POSITION knob to accurately separate the waveform into 5 divisions 5 Turn the VERTICAL POSITION knob to center the waveform Position the waveform baseline to 2 5 divisions below the center graticule 6 Press the CURSOR button 7 Push the Type option button and select Time Push the Source option button to sel...

Page 54: ... to analyze this signal Observing Noisy Signal 1 Press the ACQUIRE button to see the Acquire menu 2 Push the Type option button and select Real Time 3 Push the Peak Detect option button 4 If necessary push the DISPLAY button and set the Contrast option to view the noise more clearly See the figure below for better understanding Eliminating Random Noise 1 Press the ACQUIRE button to see the Acquire...

Page 55: ...ic signals like pulses and glitches To set for a single shot acquisition follow the steps below 1 First set up the oscilloscope probe and the attenuation factor of CH1 2 Turn the vertical VOLTS DIV and horizontal SEC DIV knobs to a proper position for a better examination of the signal 3 Press the ACQUIRE button to see the Acquire menu 4 Push the Peak Detect option button 5 Push the TRIG MENU butt...

Page 56: ...button to see the Display menu 7 Push the Format option button and select XY 8 Now the oscilloscope displays a Lissajous pattern to characterize the input and output of the circuit 9 Turn the VOLTS DIV and VERTICAL POSITION knobs to properly scale the waveform display 10 Use the Lissajous s oscillographic method to observe and calculate the phase differences following the formula below As sinθ A B...

Page 57: ...5 Push F1 to select Pulse for the Type option push F2 to select CH1 for the Source option turn the TRIGGER LEVEL knob to set the trigger level at the bottom of the signal 6 Push F6 to enter the next page Select the When option button and Push F4 to select 7 Push the Set Pulse Width option button Turn V0 to set the pulse width to the value read out in Step 3 8 Turn the TRIGGER LEVEL knob to set the...

Page 58: ...deo Fields To trigger on the video fields follow the steps below 1 Push the TRIG MENU button to see the Trigger menu 2 Push F1 to select Video for the Type option 3 Push the Source option button to select CH1 push the Polarity option button to select Normal push the Standard option button to select NTSC 4 Push the Sync option button to select Odd Field Even Field or All Fields 5 Turn the Trigger L...

Page 59: ... to select Line Number 4 Turn the Trigger Level knob to adjust the trigger level and stabilize video signals 5 Turn V0 to adjust the line number NTSC 0 525 lines 6 Turn the horizontal SEC DIV and the vertical VOLTS DIV knobs to display on the screen a complete video signal triggering on a video line See the figure below 6 8 Example 8 Using Slope Trigger to Capture Particular Slope Signal In many o...

Page 60: ...s See the figure below 6 9 Example 9 Using Overtime Trigger to Measure Long Pulse Signal It is not easy to observe some part of a long pulse signal by using the edge or pulse width trigger In such case you can use the overtime trigger by following steps 1 Push the TRIG MENU button to see the Trigger menu 2 Push F1 to select OT for the Type option push the Polarity option button to select Normal pu...

Page 61: ...eforms By using the math function of the oscilloscope you can get a better representation of the waveform on the screen To observe this signal follow the steps below 1 Set the Probe option attenuation to 10X 2 Open CH1 and CH2 at the same time both with the attenuation of 10X 3 Push the AUTOSET button to trigger a stable waveform 4 Push the MATH MENU button to see the Math menu 5 Push the Operatio...

Page 62: ...abilities in a serial data propagation control circuit you can set the oscilloscope to measure the propagation delay between the enable signal and the transfer data To set the propagation delay measurement follow the steps below 1 Connect two oscilloscope probes respectively to the CS chip select pin and the DATA pin on the chip 2 Set the Probe option attenuation to 10X for both probes 3 Open CH1 ...

Page 63: ...view the Cursor menu 7 Push the Type option button and select Time 8 Select Cursor S and turn V0 to place it on the active edge of the enable signal 9 Select Cursor E and turn V0 to place it on the data output transition See the figure below 10 Read the data propagation delay in the Delta readout ...

Page 64: ...for DC signals with large magnitude 6 In addition you may press the Auto Measure button to perform an automatic detection of signals at first Contact our Technical Support department in time if there is still no display of waveforms 3 If the waveform of the input signal is distorted seriously follow these steps 1 Check the probe to assure its proper connection to the channel BNC 2 Check the probe ...

Page 65: ...amine the oscilloscope and probes as often as operating conditions require To clean the exterior surface perform the following steps 1 Use a lint free cloth to remove floating dust on the outside of the oscilloscope and probes Take care to avoid scratching the glabrous display filter 2 Use a soft cloth dampened with water to clean the oscilloscope For more efficient cleaning you may use an aqueous...

Page 66: ... Fastener and Installed Hardware X 0 X X 0 0 Other Accessories including probes X 0 0 X 0 0 Others 0 0 0 0 0 0 X means that at least the content of this poisonous and harmful substance in a homogeneous material of this component exceeds the limit specified in the SJ T 11363 2006 standard 0 indicates that the content of this poisonous and harmful substance in all homogeneous materials of this compo...

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