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4. Junior User Guidebook

User Manual of Smart Digital Storage Oscilloscope

4. Junior User Guidebook

This chapter deals with the following topics mainly:

Introduction to the structure of the oscilloscope

Introduction to the user interface

How to implement the general inspection

How to implement the function inspection

How to make a probe compensation

How to set the probe attenuation coefficient

How to use the probe safely

How to implement an auto-calibration

Introduction to the vertical system

Introduction to the horizontal system

Introduction to the trigger system

Summary of Contents for SDS6062

Page 1: ...SDS Series Smart Digital Storage Oscilloscopes User Manual SDS6062 SDS7102 SDS8202 SDS9302 WWW OWON COM CN ...

Page 2: ...e of printing However OWON will continue to improve products and reserves the rights to changes specification at any time without notice OWON is the registered trademark of the Lilliput Company Xiamen Lilliput Technology Co Ltd the 5th floor B Area Chuangxin Mansion Software Park ZhenZhuWan Huandao RD Xiamen Fujian China Tel 86 592 2575666 Fax 86 592 2575669 Web www owon com cn Mail sales owon com...

Page 3: ...gnated by Lilliput and with a copy of customer proof of purchase This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Lilliput shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Lilliput representatives to install repair or service the product...

Page 4: ......

Page 5: ...ion 16 Introduction to the Vertical System 16 Introduction to the Horizontal System 17 Introduction to the Trigger System 18 5 Advanced User Guidebook 20 How to Set the Vertical System 21 Implementation of Mathematical Manipulation Function 25 Using FFT function 27 Application of VERTICAL POSITION and VOLTS DIV Knobs 31 How to Set the Horizontal System 31 How to set the Trigger System 34 Single tr...

Page 6: ...Example 3 Capture the Single Signal 73 Example 4 Analyze the Details of a Signal 75 Example 5 Application of X Y Function 77 Example 6 Video Signal Trigger 78 7 F A Q 80 8 Technical Specifications 82 General Technical Specifications 86 9 Appendix 87 Appendix A Enclosure 87 Appendix B Maintenance Cleaning and Repairing 87 Appendix C Battery Using Guide 88 User Manual of Smart Digital Storage Oscill...

Page 7: ... the testing ground and power cord ground conductor are connected together otherwise it will cause short circuit When powered by battery the product must ground connection To avoid electric shock there must be a ground wire connect between ground and the ground port on the back of product panel Pay attention to the nominal values of all terminals In order to prevent any fire or electric shock risk...

Page 8: ...t The following terms may appear on this product Danger It indicates that there may be an immediate injury to you when you encounter this mark Warning It indicates that there may not be an immediate injury to you when you encounter this mark Note It indicates that there may be damage to this product or other property Safety Symbols Symbols on the product The following symbol may appear on the prod...

Page 9: ...es or test lead z Before using oscilloscope please inspect oscilloscope accessories such as probe to see if they are in good condition if not please replace them z Remove probes test leads and other accessories that are not necessary use z Remove USB cable which connects oscilloscope and computer z Please pay special attention when the probe is set as 1 1 and do not apply input voltages above the ...

Page 10: ...nnel for the Record length Autoscale function 7cm smart design body 8 inch high definition TFT display 800 x 600 pixels Built in FFT function Pass Fail Function optically isolated Pass Fail output Waveform record and playback VGA output Various triggering function USB communication ports Super capacity lithium battery Optional Built in Chinese and English help system Multiple language user interfa...

Page 11: ...lloscope z Introduction to the user interface z How to implement the general inspection z How to implement the function inspection z How to make a probe compensation z How to set the probe attenuation coefficient z How to use the probe safely z How to implement an auto calibration z Introduction to the vertical system z Introduction to the horizontal system z Introduction to the trigger system ...

Page 12: ... knobs have the functions similar to other oscilloscopes The 5 buttons F1 F5 in the column on the right side of the display screen or in the row under the display screen H1 H5 are menu selection buttons through which you can set the different options for the current menu The other pushbuttons are function buttons through which you can enter different function menus or obtain a specific function ap...

Page 13: ... 3 Right side panel 1 USB Host port It is used to transfer data when external USB equipment connects to the oscilloscope regarded as Host equipment For example upgrading software by USB flash disk needs to use this port 2 USB Device port It is used to transfer data when external USB equipment connects to the oscilloscope regarded as Device equipment For example to use this port when connect PC to ...

Page 14: ... the oscilloscope with a monitor or a projector as VGA output 4 LAN function reserved Rear Panel Fig 4 4 Rear Panel 1 The port of trigger signal output Pass Fail output 2 Handle 3 Air vents 4 Foot stool can adjust the tilt angle of the oscilloscope 5 Ground connection User Manual of Smart Digital Storage Oscilloscope 8 ...

Page 15: ...ts of six kinds of operations including CH1 CH2 CH2 CH1 CH1 CH2 CH1 CH2 CH1 CH2 and FFT Two VERTICAL POSITION knob control the vertical position of CH1 CH2 and two VOLTS DIV knob control voltage scale of CH1 CH2 7 Horizontal control area with 1 key and 2 knobs HORIZONTAL POSITION knob control trigger position SEC DIV control time base HORIZ MENU key refer to horizontal system setting menu 8 Trigge...

Page 16: ...Ready All pre triggered data have been captured and the oscilloscope has been already ready for accepting a trigger Scan The oscilloscope captures and displays the waveform data continuously in the scan mode Stop The oscilloscope has already stopped the waveform data acquisition 3 The purple pointer indicates the horizontal trigger position which can be adjusted by the horizontal position control ...

Page 17: ...gger level value of the corresponding channel 20 The reading shows the window time base value 21 The reading shows the setting of main time base 22 The readings show current sample rate and the record length 23 It indicates the measured type and value of the corresponding channel F means frequency T means cycle V means the average value Vp the peak peak value Vk the root mean square value Ma the m...

Page 18: ... suffered serious damage do not throw it away first till the complete device and its accessories succeed in the electrical and mechanical property tests 2 Check the Accessories The supplied accessories have been already described in the Appendix B Accessories of this Manual You can check whether there is any loss of accessories with reference to this description If it is found that there is any ac...

Page 19: ...u Turn the M knob to select Adjust and press H3 button to select Default The default attenuation coefficient set value of the probe in the menu is 10X 2 Set the Switch in the Oscilloscope Probe as 10X and Connect the Oscilloscope with CH1 Channel Align the slot in the probe with the plug in the CH1 connector BNC and then tighten the probe with rotating it to the right side Connect the probe tip an...

Page 20: ... ensure that it keeps in close touch with the probe Connect the probe tip with the signal connector of the probe compensator and connect the reference wire clamp with the ground wire connector of the probe connector and then press the button Autoset 2 Check the displayed waveforms and regulate the probe till a correct compensation is achieved see Fig 4 8 and Fig 4 9 Overcompensated Compensated cor...

Page 21: ...ttenuation switch in the probe is the same as the menu selection of the probe attenuation coefficient in the oscilloscope The set values of the probe switch are 1X and 10X see Fig 4 10 Fig 4 10 Attenuation Switch Note When the attenuation switch is set to 1X the probe will limit the bandwidth of the oscilloscope in 5MHz If it is needed to use the full bandwidth of the oscilloscope the switch must ...

Page 22: ...e range of variation of the ambient temperature is up to or over 5 this program must be executed For the performing of the self calibration all probes or wires should be disconnected with the input connector first Press the Utility button then press H1 button to call out the Function menu turn the M knob to choose Adjust Press H2 button to choose the option Self Cal run the program after everythin...

Page 23: ... a shortcut key this is especially helpful when the trace position is far out of the screen and want it to get back to the screen center immediately 2 Change the Vertical Setting and Observe the Consequent State Information Change With the information displayed in the status bar at the bottom of the waveform window you can determine any changes in the channel vertical scale factor z Turn the verti...

Page 24: ...TAL POSITION knob to adjust the horizontal position of the signal in the waveform window The HORIZONTAL POSITION knob is used to control the triggering displacement of the signal or for other special applications If it is applied to triggering the displacement it can be observed that the waveform moves horizontally with the knob when you rotate the HORIZONTAL POSITION knob 3 With the HORIZ MENU bu...

Page 25: ...up and down with the rotation of the knob With the movement of the trigger indicator it can be observed that the trigger level value displayed in the screen changes PS Turning the TRIG LEVEL knob can change trigger level value and it is also the hotkey to set trigger level back to 0 3 Press the button 50 to set the trigger level as the vertical mid point values of the amplitude of the trigger sign...

Page 26: ...ds yet we advise you to read the section of Chapter One Junior Users Guidebook This chapter will deal with the following topics mainly z How to Set the Vertical System z How to Set the Horizontal System z How to Set the Trigger System z How to Implement the Sampling Setup z How to Set the Display System z How to Save and Recall Waveform z How to Record Playback Waveforms z How to Implement the Aux...

Page 27: ...ely based on the channel To turn waveforms on or off channel math Pressing the CH1 MENU CH2 MENU and Math buttons have the following effect If the waveform is off the waveform is turned on and its menu is displayed If the waveform is on and its menu is not displayed its menu will be displayed If the waveform is on and its menu is displayed the waveform is turned off and its menu goes away CH1 menu...

Page 28: ...to reduce display noise 1 Setting Channel Coupling Taking the Channel 1 for example the measured signal is a square wave signal containing the direct current bias The operation steps are shown as below 1 Press the CH1 MENU button and call out the CH1 SETUP menu 2 Press the H1 button the Coupling menu will display at the screen 3 Press the F1 button again to select the Coupling item as DC By settin...

Page 29: ...0 1 the operation steps is shown as follows 1 Press the CH1 MENU button access CH1 SETUP menu 2 Press the H3 menu selection the Probe menu will display at the right of the screen then press the F2 button to select 10X for the probe The Fig 5 3 illustrates the setting and the vertical scale factor when the probe of the attenuation coefficient of 10 1 is used Fig 5 3 Regulation of the Attenuation Ra...

Page 30: ...2 menu selection button and select ON for Inverted item The waveform inverted function is initiated 3 Press the H2 menu selection button again and select OFF for Inverted item The function of waveform inverted is closed off For the screen display see Fig 5 4 and Fig 5 5 Fig 5 4 Waveform not inverted User Manual of Smart Digital Storage Oscilloscope 24 Fig 5 5 Waveform Inverted ...

Page 31: ...e Band Limit as 20M The bandwidth is limited to 20MHz The frequencies above 20 MHz will be rejected Implementation of Mathematical Manipulation Function The Mathematical Manipulation function is used to show the results of the addition multiplication division subtraction operations and the FFT operation between Channel 1 and Channel 2 Fig 5 6 Wave math menu The corresponding FCL Functional Capabil...

Page 32: ...tion steps are as follows 1 Press the Math button and call out the Wfm Math menu 2 Press the H1 button and call out the Dual Wfm Math menu The menu will display at the left of the screen 3 Press the F1 menu selection button and choose CH1 for Factor1 4 Press the F2 menu selection button and choose 5 Press the F3 menu selection button and choose CH2 for Factor2 The green calculated waveform M is di...

Page 33: ...n the M knob to zoom in or out the wave of the multiple including 1 2 5 10 Selecting the FFT Window The FFT feature provides four windows Each one is a trade off between frequency resolution and magnitude accuracy What you want to measure and your source signal characteristics help you to determine which window to use Use the following guidelines to select the best window Type Description Window R...

Page 34: ...sine periodic and narrow band random noise This window works on transients or bursts where the signal levels before and after the event are significantly different Blackman This is the best window for measuring the amplitude of frequencies but worst at resolving frequencies Use Blackman Harris for measuring predominantly single frequency waveforms to look for higher order harmonics Fig 5 8 5 9 5 1...

Page 35: ...5 Advanced User Guidebook Fig 5 9 Hamming window Fig 5 10 Rectangle window User Manual of Smart Digital Storage Oscilloscope 29 ...

Page 36: ...titive or single shot events set the oscilloscope acquisition mode to average Term interpretation Nyquist frequency The highest frequency that any Real Time Digital Oscilloscope can measure is exactly half of the sampling rate under the condition of no mistakes which is called Nyquist frequency If under sampling occurs when the frequency sampled is higher than Nyquist frequency False Wave phenomen...

Page 37: ...es up when the knob is rotated clockwise and goes down when the knob is rotated anticlockwise 3 When the vertical position of the channel waveform is adjusted the screen shows the information concerning the vertical position at the lower left corner see Fig 5 12 Fig 5 12 Information about Vertical Position How to Set the Horizontal System The HORIZONTAL CONTROLS includes the HORIZ MENU button and ...

Page 38: ...efined by two cursors This function is not available at FFT mode Zoom Zoom Window The defined window area for display is expanded to the full screen Main Time Base Press the H1 menu selection button and choose Main In this case the HORIZONTAL POSITION and SEC DIV knobs are used to adjust the main window The display in the screen is shown as Fig 5 14 Fig 5 14 Main Time Base Set Window Press the H2 ...

Page 39: ... In FFT mode Set menu is invalid See Fig 5 15 Fig 5 15 Window Setting Window Expansion Press the H3 menu selection button and choose Zoom As a result the window area defined by two cursors will be expanded to the full screen size see Fig 5 16 Fig 5 16 Zoom Window User Manual of Smart Digital Storage Oscilloscope 33 ...

Page 40: ... the trigger control menu Trigger Control The oscilloscope provides two trigger types single trigger and alternate trigger Single trigger Use a trigger level to capture stable waveforms in two channels simultaneously Alternate trigger Trigger on non synchronized signals The Single Trigger and Alternate Trigger menus are described respectively as follows Single trigger Single trigger has four modes...

Page 41: ...Not allow high frequency of signal pass and only low frequency portion pass Not allow low frequency of signal pass and only high frequency portion pass Slope Trigger in signal rising edge Trigger in signal falling edge Mode Holdoff Auto Normal Single Holdoff Reset Acquire waveform even no trigger occurred Acquire waveform when trigger occurred When trigger occurs acquire one waveform then stop 100...

Page 42: ...t Acquire waveform even no trigger occurred 100ns 10s adjust the M knob to set time interval before another trigger occur Set Holdoff time as 100ns 3 Pulse Width Trigger Pulse trigger occurs according to the width of pulse The abnormal signals can be detected through setting up the pulse width condition The Pulse Width Trigger Menu is shown as Fig 5 19 Fig 5 19 Pulse Width Trigger menu Pulse Width...

Page 43: ...g 5 20 Fig 5 20 Slope trigger menu Slope trigger menu list MENU SETTING INSTRUCTION Single Mode Slope Set vertical channel trigger type as slope trigger Source CH1 CH2 EXT EXT 5 AC Line Select CH1 as the trigger source Select CH2 as the trigger source Ext trigger Ext trigger divide to 5 to extend trigger level range AC Line as resource trigger signal slope Slope selecting When Set slope condition ...

Page 44: ...Alternate trigger Trigger Type Edge Menu Alternate trigger Trigger Type Edge Menu list MENU SETTING INSTRUCTION Alternate Mode Edge Set vertical channel trigger type as edge trigger Source CH1 CH2 Select CH1 as the trigger source Select CH2 as the trigger source Couple AC DC HF LF Not allow DC portion to pass Allow all portion pass Not allow high frequency of signal pass and only low frequency por...

Page 45: ...gned video line turn the M knob to set the line number Mode Holdoff Auto Holdoff Reset Acquire waveform even no trigger occurred 100ns 10s adjust the M knob to set time interval before another trigger occur Set Holdoff time as 100ns 3 Alternate trigger Trigger Mode Pulse Alternate trigger Trigger Type Pulse Menu is shown as Fig 5 23 Fig 5 23 Alternate trigger Trigger Type Pulse Menu Alternate trig...

Page 46: ...ertical channel trigger type as slope trigger Source CH1 CH2 Select CH1 as the trigger source Select CH2 as the trigger source slope Select slope condition When Set slope condition turn the M knob to set time Threshold High level Low level Slew rate Turn M knob to set the High level Turn M knob to set Low level Slew rate High level Low level Settings Mode Holdoff Auto Holdoff Reset Acquire wavefor...

Page 47: ...gger condition occurs while the oscilloscope is waiting for a specific period as determined by the time base setting it will force itself to trigger z Normal The Normal mode allows the oscilloscope to acquire a waveform only when it is triggered If no trigger occurs the oscilloscope keeps waiting and the previous waveform if any will remain on the display Single In Single mode after pressing the R...

Page 48: ...splayed in the screen shown as Fig 5 25 Fig 5 25 ACQU MODE Menu The description of the Acqu Mode Menu is shown as follows Function Menu Setting Description Sample General sampling mode Peak Detect It is used for the detection of the jamming burr and the possibility of reducing the confusion Sample Averages 4 16 64 128 It is used to reduce the random and don t care noises with the optional number o...

Page 49: ...se the record length Change the ACQU Mode settings and observe the consequent variation of the wave form displayed Fig 5 26 Peak Detect mode under which the burrs on the falling edge of the square wave can be detected and the noise is heavy User Manual of Smart Digital Storage Oscilloscope 43 ...

Page 50: ... displayed waveform after the noise is removed under the Average Mode in which the average number of 16 is set How to Set the Display System Push down the Display button and the menu displayed in the screen is shown as Fig 5 29 Fig 5 29 Display Set Menu User Manual of Smart Digital Storage Oscilloscope 44 ...

Page 51: ...e persistence ON Turn on the XY display function Turn off the XY display function XY Mode OFF ON Turn on the cymometer Cymometer OFF Turn off the cymometer ON VGA Disp OFF Connect the VGA port to a monitor If set it as ON the waveform could be displayed on the computer monitor Display Type With the F1 menu selection button pushed down you can shift between Vect and Dots types The differences betwe...

Page 52: ... data is in bright color Press the H2 button the Persist menu will display at the right of screen Press the F1 button different persistence time can be chosen OFF 1second 2second 5second and Infinity When the Infinity option is set for Persist time the measuring points will be stored till the controlling value is changed see Fig 5 34 By pressing the F2 button the persistence will be cleared User M...

Page 53: ...and can not be changed The operations of all control knobs are as follows The Vertical VOLTS DIV and the VERTICAL POSITION knobs of Channel 1 are used to set the horizontal scale and position The Vertical VOLTS DIV and the VERTICAL POSITION knobs of Channel 2 are used to set the vertical scale and position continuously The following functions can not work in the XY Format Reference or digital wave...

Page 54: ...frequency of the triggering channel In the ALT trigger mode it is a two channel cymometer and it can measure the frequency of two channels The cymometer is displayed at the right bottom of the screen To turn the cymometer on or off 1 Press the Display button 2 In the Display menu press the H4 button to toggle between the cymometer display ON or OFF VGA Output The VGA port could be connected to a c...

Page 55: ...close the waveform stored in the current object address When the show is ON if the current object address has been used the stored waveform will be shown the address number and relevant information will be displayed at the top left of the screen if the address is empty None is saved will be displayed Save Save the waveform of the source to the selected address You can also press Copy button to do ...

Page 56: ...eform called out can not be adjusted In order to save the waveform of the channel CH1 into the address 1 the operation steps should be followed 1 Saving Press the H1 button the Type menu will display at the left of screen turn the M knob to choose Wave for Type 2 Press the H2 button and press F1 button to select CH1 for Source 3 Press the H3 button and press the F1 turn the M knob to select 1 as o...

Page 57: ... menu shows as follows Menu Setting Instruction Mode OFF Record Playback Storage Close wave record function Set record menu Set playback menu Set storage menu End frame Turn the M knob to select the number of frames to record 1 1000 Record mode FrameSet Interval Turn the M knob to select the interval between recorded frames 1ms 1000s Refresh ON OFF Refresh wave during recording Stop refreshing Ope...

Page 58: ...number of start frame to playback 1 1000 Turn the M knob to select the number of end frame to playback 1 1000 Turn the M knob to select the number of current frame to playback 1 1000 Turn the M knob to select the interval between played back frames 1ms 1000s Play mode Loop Once Play back the wave continuously Play back the wave just one time Operate Play Begin to record Stop Stop recording User Ma...

Page 59: ...struction Start frame Turn the M knob to select the number of start frame to store 1 1000 Storage Mode End frame Turn the M knob to select the number of end frame to store 1 1000 Frame Set Save Save the waveform record file to the internal memory Load Load the waveform record file from the memory Fig 5 38 Wave Storage User Manual of Smart Digital Storage Oscilloscope 53 ...

Page 60: ...F4 button to choose Storage then set the range of frames to store press H4 button to save 9 To load the waveform from the internal memory press Load and then enter playback mode to analyze the wave How to Implement the Auxiliary System Function Setting Config Press the Utility button and turn the M knob to select Config to go to the following menu Fig 5 39 Configuration Menu The description of Con...

Page 61: ...he follows Function Menu Setting Description Self Cal Carry out the self calibration procedure Default Call out the factory settings Do Self Cal Self Calibration The self calibration procedure can improve the accuracy of the oscilloscope under the ambient temperature to the greatest extent If the change of the ambient temperature is up to or exceeds 5 the self calibration procedure should be execu...

Page 62: ...s Fail function monitors changes of signals and output pass or fail signals by comparing the input signal that is within the pre defined mask Press the Utility button and turn the M knob to select the Pass fail to go to the following menu Fig 5 43 Pass Fail menu User Manual of Smart Digital Storage Oscilloscope 56 ...

Page 63: ...ss signal by built in configurable and photoelectric isolation output port To run the test read the following steps 1 Press Utility button then H1 button turn the M knob to choose Pass fail menu option Pass Fail menu will be displayed in the bottom 2 Enable switch on Press H2 button to show Operate menu then press F1 button to set Enable as ON 3 Create rule Press H4 button to enter Rule setting me...

Page 64: ...top and when it goes on running the number of Pass Fail will increase from the former number not from zero Output Press the Utility button and turn the M to select the Output to go to the following menu Fig 5 45 Output menu The description of Output menu is shown as the follows Function Menu Setting Description Trig level Output trig signal synchronously Type Pass fail Output High Level when Pass ...

Page 65: ...w all the measures on the screen Add Add Add the selected measure types showed at the left bottom you could only add 8 types at most Remove all Remove all the measures Type Turn M knob select the types need to be deleted Remove Remove Remove the chosen measure type Measure The measured values can be detected on each channel simultaneously Only if the waveform channel is in the ON state the measure...

Page 66: ... F4 button the frequency added completes finish setting of CH1 8 Press the F2 button and choose CH2 as the source 9 Press the F1 button the type items will display at the left of screen and turn the M to choose Mean 10 Press the F4 button the Mean added completes 11 Press the F1 button the type items will display at the left of screen and turn the M to choose PK PK 12 Press the F4 button the PK PK...

Page 67: ...re pulse waveforms Vbase Voltage of the waveform s flat base useful for square pulse waveforms Overshoot Defined as Vmax Vtop Vamp useful for square and pulse waveforms Preshoot Defined as Vmin Vbase Vamp useful for square and pulse waveforms Average The arithmetic mean over the entire waveform Vrms The true Root Mean Square voltage over the entire waveform The automatic measurement of time parame...

Page 68: ... delay between the two channels at the rising edge Delay 1 2 The delay between the two channels at the falling edge Duty Duty Cycle defined as Width Period Duty Duty Cycle defined as Width Period How to measure with cursors Press the Cursor button to display the cursor measurement function menu CURS MEAS in the screen The Cursor Measurement for normal model The cursor measurement includes Voltage ...

Page 69: ...or measurement of the channel CH1 1 Press Cursor and recall the Cursor Measure menu 2 Press the H2 button and choose CH1 for Source 3 Press the H1 button the Type menu will display at the right of the screen Then press the F2 button to choose Voltage for Type with two purple dotted lines displayed along the horizontal direction of the screen which indicating Cursor1 and Cursor2 4 According to the ...

Page 70: ...h indicating Cursor 1 and Cursor 2 4 According to the measured waveform adjust the positions of Cursor1 and Cursor2 by turning the VERTICAL POSITION knob of CH1 and CH2 The cursor increment window at the left bottom of the waveform shows absolute difference frequency and the present time of the two cursors Fig 5 52 Waveform of Cursor Measurement The Cursor Measurement for FFT model Press the Curso...

Page 71: ...djusted with the VERTICAL POSITION knob of Channel 2 Perform the following operation steps for the Vamp cursor measurement 1 Press Cursor and recall the Cursor Measure menu 2 Press the H1 button the Type menu will display at the right of the screen Press the F2 button to select Vamp for Type with two purple dotted lines displayed along the horizontal direction of the screen indicating Cursor1 and ...

Page 72: ...screen Press the F3 button to select Freq for Type with two purple dotted lines displayed along the vertical direction of the screen indicating the corresponding Cursor 1 and Cursor 2 3 According to the measured waveform adjust the positions of Cursor1 and Cursor2 by turning the VERTICAL POSITION knob of CH1 and CH2 Increment window shows two cursors difference value and the present position See F...

Page 73: ...change at any time Autoscale enables the instrument to set up trigger mode voltage division and time scale automatically according to the type amplitude and frequency of the signals Fig 5 56 Autoscale menu The menu is as follows Function Menu Setting Instruction Autoscale OFF ON Turn off Autoscale Turn on Autoscale User Manual of Smart Digital Storage Oscilloscope 67 ...

Page 74: ...ess H1 to choose ON 3 Press H2 and choose for Mode item 4 Press H3 and choose for Wave item Then the wave is displayed in the screen shown as Fig 5 57 Fig 5 57 Autoscale Horizontal Vertical multi period waveforms Note 1 Entering into Autoscale function and the A flicker will be at the top left of the screen flicker every 0 5 second 2 In the mode of Autoscale the oscilloscope can self estimate Trig...

Page 75: ...he unit will switch to Peak detection menu while in the state of Average sampling mode How to Use Executive Buttons Executive Buttons include Autoset Run Stop Single Copy Autoset This button is used for the automatic setting of all control values of the instrument to generate the waveform suitable for observation Press the Autoset button and the oscilloscope will perform the fast automatic measure...

Page 76: ...sions downwards Single Press this button you can set the trigger mode as single directly so when trigger occurs acquire one waveform then stop Copy This button is the shortcut of saving function of the Save function menu Pressing this button is equal to the Save option in the Save function menu The current waveform or the display screen could be saved according to the setting of the Save function ...

Page 77: ...measure most of the displayed signals automatically To measure the period and frequency of the Channel 1 and the mean and peak to peak voltage of the Channel 2 follow below steps 1 Press the Measure button to show the automatic measurement function menu 2 Press the H1 to display the Add menu 3 Press the F2 button to choose CH1 as the source 4 Press the F1 button the type items will display at the ...

Page 78: ...0X see How to Set the Probe Attenuation Coefficient on P14 Connect the oscilloscope CH1 channel with the circuit signal input end and the CH2 channel to the output end Operation Steps 1 Push down the Autoset button and the oscilloscope will automatically adjust the waveforms of the two channels into the proper display state 2 Push down the Measure button to show the Measure menu 3 Press the H1 but...

Page 79: ...l For example if the pulse is the logic signal of a TTL level the trigger level should be set to 2 volts and the trigger edge be set as the rising edge trigger If it is uncertain as to the signal you can make an observation of it in advance under the automatic or ordinary mode to determine the trigger level and the trigger edge The operation steps are as follows 1 Set the probe menu attenuation co...

Page 80: ...he Run Stop button and start acquiring waiting the emergence of the signal in conformity with the trigger conditions If a signal reaches to the set trigger level one sampling will be made and then displayed in the screen With this function any random occurrence can be captured easily Taking the burst burr of larger amplitude for example set the trigger level to the value just greater than the norm...

Page 81: ... the instrument according to the following steps 1 Press the Acquire button to display the Acquire menu 2 Press the H1 button to display ACQU Mode menu 3 Press the F2 button to choose Peak detect In this case the screen display contains the waveform of a random noise Especially when the time base is set as Low Speed then noise peak and burr contained in the signal can be observed with the peak det...

Page 82: ...eps 1 Press the Acquire button to display the Acquire menu 2 Press the H1 button to display ACQU Mode menu 3 Press the F3 button turn the M knob and observe the waveform obtained from averaging the waveforms of different average number After the averaging the random noise is reduced and the detail of the signal is easier to be observed Shown as follows after the noise is removed the burrs on the r...

Page 83: ...at of the switch in the probe for 10X see How to Set the Probe Attenuation Coefficient on P14 2 Connect the probe of channel 1 to the input of the network and that of Channel 2 to the output of the network 3 Push down the Autoset button with the oscilloscope turning on the signals of the two channels and displaying them in the screen 4 Turn the VOLTS DIV knob making the amplitudes of two signals e...

Page 84: ...is in the I and III quadrants the determined phase difference angel should be in the I and IV quadrants that is in the range of 0 π 2 or 3π 2 2π If the principal axis of the ellipse is in the II and IV quadrants the determined phase difference angle is in the II and III quadrants that is within the range of π 2 π or π 3π 2 Example 6 Video Signal Trigger Observe the video circuit of a television ap...

Page 85: ...on to choose CH1 for Source 7 Press the H3 button to display the Modu menu 8 Press the F1 button to choose NTSC for the modulation 9 Press the H4 button to display the sync menu 10 Press the F2 button to choose Field for Sync 11 Turn the VOLTS DIV VERTICAL POSITION and SEC DIV knobs to obtain a proper waveform display see Fig 6 7 Fig 6 7 Waveform Obtained from Video Field Trigger User Manual of Sm...

Page 86: ...signal generated with the channel in fault z Make the signal acquisition operation again 3 The measured voltage amplitude value is 10 times greater or smaller than the actual value Check whether the channel attenuation coefficient and the attenuation ration of the probe used in practical application is match see How to Set the Probe Attenuation Coefficient on P14 4 There is waveform displayed but ...

Page 87: ...cilloscope 81 6 After the Average value sampling is set in the Acqu Mode see How to Implement Sampling Setup on P42 or the longer duration is set in the Persist in Display see Persist on P46 the display rate is slowed down It is a normal phenomenon ...

Page 88: ...function menu and execute the Auto calibration procedure see How to Implement Auto calibration on P16 All specification standards can be fulfilled except one s marked with the word Typical Performance Characteristics Instruction SDS6062 60MHz SDS7102 100MHz SDS8202 200MHz Bandwidth SDS9302 300MHz Channel 2 1 External Mode Normal Peak detect Averaging SDS6062 500MS s 250MS s for dual channels SDS71...

Page 89: ...s on each channel SDS6062 5ns div 100s div step by 1 2 5 SDS7102 2ns div 100s div step by 1 2 5 SDS8202 2ns div 100s div step by 1 2 5 Scanning speed S div SDS9302 2ns div 100s div step by 1 2 5 Sampling rate relay time accuracy 100ppm Horizontal System Interval T accuracy DC 100MHz Single 1 interval time 100ppm reading 0 6ns Average 16 1 interval time 100ppm reading 0 4ns A D converter 8 bits res...

Page 90: ...DelayA B Width Width Duty Duty Waveform Math FFT Waveform storage 15 waveforms Bandw idth Full bandwidth Measurement Lissajous figure Phase differe nce 3 degrees Frequency typical 1KHz square wave Communication port USB2 0 USB for file storage VGA port or RS 232 Single channel is when only one input channel is working Trigger Performance Characteristics Instruction Internal 6 div from the screen c...

Page 91: ...t signal frequency 50Hz slope Rising Falling Edge trigger Sensitivity 0 3div Trigger condition Positive pulse negative pulse Pulse trigger Pulse Width range 24ns 10s Modulation Support standard NTSC PAL and SECAM broadcast systems Video Trigger Line number range 1 525 NTSC and 1 625 PAL SECAM Trigger condition Positive pulse negative pulse Slope Trigger Time setting 24ns 10s Trigger on CH1 Edge Pu...

Page 92: ...eater than 1MΩ of load Frequency Typical Square wave of 1KHz Power Mains Voltage 100 240 VAC RMS 50 60Hz CAT II Power Consumption 18W Fuse 1A T grade 250V Battery optional Cell 558792 4000mAh 3 7V Pack 2s2p 7 4V 8000mAh Environment Temperature Working temperature 0 40 Storage temperature 20 60 Relative Humidity 90 Height Operating 3 000 m Non operating 15 000 m Cooling Method Natural convection Me...

Page 93: ...rding to their operating state Clean the external surface of the instrument following the steps shown below 1 Please wipe the dust from the instrument and probe surface with a soft cloth Do not make any scuffing on the transparent LCD protection screen when clean the LCD screen 2 Clean the instrument with a wet soft cloth not dripping water during the period of which please pay attention to the di...

Page 94: ... can supply power for 4 hours after being charged completely There will have battery power indication show on the top of panel when oscilloscope power supplied by the battery if no indication has appeared see Display on P55 and imply for different power consumption and when shows it means the power can only supply for 5 minutes maximum Note To avoid superheat of battery during charging the environ...

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