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1. How to Implement the Probe Compensation When connect the probe with any input channel for the first time make this adjustment to match the probe with the input channel The probe which is not compensated or presents a compensation deviation will result in the measuring error or mistake For adjusting the probe compensation please carry out the following steps l Set the attenuation coefficient of the probe in the menu as 10X and that of the switch in the probe as 10X and connect the oscilloscope probe with the CH1 channel If a probe hook tip is used ensure that it keeps in close touch with the probe Connect the probe tip with the signal connector of the probe compensator 13 User Manual of OWON Digital Storage Oscilloscope and connect the reference wire clamp with the ground wire connector of the probe connector and then press the button 7 AUTOSET 2 Check the displayed wave forms and regulate the probe till a correct compensation is achieved see Fig 4 5 and Fig 4 6 Overcompensated Compensated correctly Under compensated Fig 4 5 Displayed Wave Forms of the Probe Compensation 3 Repeat the steps mentioned if necessary Se a ran pz Sat aS sg Fig 4 6 Adjust Probe How to Set the Probe Attenuation Coefficient The probe has several attenuation coefficients which will influence the vertical scale factor of the oscilloscope If it 1s required to change check the set value of the probe attenuati
2. 24ns 10s Turn TRIG LEVEL knob to set slope time Turn TRIG LEVEL knob to set the High level Lowlevel Turn TRIG LEVEL knob to set Low level Slew rate High level Low level Settings Auto Acquire waveform whatever detect trigger condition or not Trigger Normal Only acquire waveform when match trigger condition mode Single Only acquire waveform for single time when detect trigger condition then stop 100ns Turn TRIG LEVEL knob to set time slot before another Holdoff 10s trigger event Kardot a Reset hold time to 100ns Reset 40 User Manual of OWON Digital Storage Oscilloscope Alternate trigger Trigger signal comes from two vertical channels when alternate trigger is on This mode is used to observe two unrelated signals You can choose different trigger modes for different channels The options are as follows edge video pulse or slope Alternate trigger Trigger mode Edge Alternate trigger Trigger Type Edge Menu is shown as Fig 5 23 Fig 5 23 Alternate trigger Trigger Type Edge Menu Alternate trigger Trigger Type Edge Menu list MENU SETTING INSTRUCTION CH1 Select CH1 as the trigger source Source CH2 Select CH2 as the trigger source Set vertical channel trigger type for edge trigger Rising Trigger in signal rising edge Slope o Falling Trigger in signal falling edge AC Not allow DC portion to pass DC Allow all portion pass Coine HF Not allow high f
3. Channel ee ee ee ne ON tah aa ae cane aie ana Cay heer anaes Oa i a E E T E A A A E ee A a E A E 10 X EO AO ee ee ee ee ee ee ee E Inverted OFF CHi Zv CHZ 20 0mu M 500us CHi 2 56u CH1 1 Q0000KHz Fig 5 3 DC Coupling Oscillogram 2 Setting the Band Limit Taking the Channel for example the operation steps are shown as below 1 Press the CH1 MENU button and call out the CH1 SETUP menu 2 Press the F2 menu selection button and select the Band Limit as OFF 100MHz with Channel 1 Band Limit switched off 3 Press F2 menu selection button again select the Band Limit as ON 20MHz with Channel 1 Band Limit is switched on 22 3 User Manual of OWON Digital Storage Oscilloscope Setting the Channel ON OFF Taking the Channel for example the operation steps are shown as below 1 Press the CH1 MENU button and call out the CH1 SETUP menu 2 Press the F3 menu selection button and select the Channel as OFF with Channel switched off 3 Press F3 menu selection button again select the channel as ON with Channel 1 is switched on Note In FFT mode both CH1 and CH2 are not allowed to be ON when F3 is pressed See Fig 5 4 Fig 5 4 Channel CH1 is diable under FFT mode 4 Regulate the Attenuation Ratio of the Probe In order to match the attenuation coefficient of the probe it is required to adjust the attenuation ration coefficient of the probe through the operating menu of the Channe
4. For the trigger in the video field carry out operations according to the following Steps 1 Press the TRIG MENU button to display the trigger menu 74 User Manual of OWON Digital Storage Oscilloscope E a E Press the F1 menu selection button and choose Single for Type Press the F2 menu selection button and choose CH1 for Source Press the F3 menu selection button and choose Video for type Press the F4 menu selection button and choose Field for Sync Adjust the VOLTS DIV VERTICAL POSITION and SEC DIV knobs to obtain a proper wave form display see Fig 6 7 Fig 6 7 Wave Form Obtained from Video Field Trigger 75 User Manual of OWON Digital Storage Oscilloscope 7 F A Q 1 In the case of that the oscilloscope is still in the black screen state without any display after the power is switch on implement the following fault treatment procedure Check whether the power connection is connected properly Check whether the power switch is pushed down to the designated position Restart the instrument after complete the checks above If this product still can not work normally please get in touch with Lilliput and we will be under your service After acquiring the signal carry out the following operations if the wave form of the signal is not displayed in the screen Check whether the probe is properly connected to the signal connecting wire Check whether the signal connecting wire is correctly connected to
5. Taking the additive operation between Channel and Channels 2 for example the operation steps are as follows 1 Press the MATH MENU button and call out the WAVE MATH menu 2 Press the F3 menu selection button and choose CH1 CH2 The green calculated wave form M is displayed in the screen press the F3 menu selection button again the wave form M is closed off see Fig 5 8 Fig 5 8 Wave Form resulted from CH1 CH2 Mathematical Manipulation Using FFT function An FFT breaks down signals into component frequencies which the oscilloscope uses to display a graph of the frequency domain of a signal as opposed to the oscilloscope s standard time domain graph You can match these frequencies with known system frequencies such as system clocks oscillators or power supplies FFT in this oscilloscope can transform 2048 points of the time domain signal into its frequency components and the final frequency contains 1024 points ranging from OHz to Nyquist frequency 26 User Manual of OWON Digital Storage Oscilloscope The following table describes the FFT menu Turn on FFT function FFT Turn off FFT function Select CH1 as FFT source Source Select CH2 as FFT source Rectangle Blackman Window Select window for FFT Hanning Hamming Select dB for Format Format Select Vrms for Format Set multiple 1 Set multiple 2 Zoom Set multiple 5 Set multiple 10 Taking the FFT operation for example the operati
6. Digital Storage Oscilloscope on the source signal E To reduce random noise and aliased components in repetitive 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 phenomenon will appear So pay more attention to the relation between the frequency being sampled and measured NOTE In FFT mode the following settings are prohibited 1 Window set 2 change source channel in CH1 Setup or CH2 Setup menu 3 XY Format in DISPLAY SET 4 SET 50 the triggering level at the vertical point of signal amplitude in Trigger setting 5 Autoscale 6 Measure 1 and Measure 2 Application of VERTICAL POSITION and VOLTS DIV Knobs 1 The VERTIVAL POSITION knob is used to adjust the vertical positions of the wave forms of all Channels including those resulted from the mathematical Operation The analytic resolution of this control knob changes with the vertical division 2 The VOLTS DIV knob is used to regulate the vertical resolution of the wave forms of all channels including those obtained from the mathematical manipulation which can determine the sensitivity of the vertical divis
7. Form Save Menu is shown as the following table Setting CH1 Source CH2 Choose the wave form to be saved MATH OFF A B Choose the address in or from which the WAVE C D waveform is saved or can be get access to Save the wave form of the source in the Save selected address OFF Switch on or off the display of the stored CHA ON waveform Save and Recall the Wave Form The PDS series oscilloscope can store four waveforms which can be displayed with the current waveform at the same time The stored waveform called out can not be adjusted In order to save the waveform of the channel CH1 into the address A the operation steps should be followed 1 Press the F1 menu selection button and choose CH1 for Source 2 Press the F2 menu selection button and choose A as save address 3 Press the F3 menu selection button and save the waveform 53 User Manual of OWON Digital Storage Oscilloscope 4 Press the F4 menu selection button and choose ON for CH A The stored wave form A will be displayed in the screen The voltage level and time base level will also be shown at the upper left corner of the display area at the same time see Fig 5 38 OWON Ctrig d beret Pos 0 000ns WAVE SAVE Save A 20v 5 00us l Source CH1 WAVE CH1 20y CHZ Su M 5 0us CH1 3 20u CH1 99 9673KHz Fig 5 38 Wave Saving OWON Auto powwow M Pos 125 0KHz WAVE SAVE Source Math FFT WAVE D Save CH D eae ey ee
8. SYS STAT menu is described as the following table Setting Horizontal Show the horizontal parameter of the channel Vertical f sd Show the vertical parameter of the channel Trigger sd Show the parameters of the trigger system Miss sd Show the serial number and edition number After entering into the SYS STAT menu choose the corresponding function with the corresponding parameters shown in the screen If press the F1 menu selection button and choose the function item Horizontal the Horizontal System State will be displayed in the screen Press any other function button and exit from the SYS STAT menu see Fig 5 42 56 User Manual of OWON Digital Storage Oscilloscope HORIZONTAL SYSTEM STATUS TIME BASE MAIN TIME BASE MAIN SCALE 1 0ms WINDOW SCALE 10 us MAIN POSITION 0 000ns WINDOW POSITION Os DISPLAY FORMAT YT ACQUIRE MODE SAMPLE FFT SOURCE CH1 WINDOW Hamming DISPLAY FORMAT dB Fig 5 42 Horizontal System State How to Implement the Automatic Measurement With the Measure button pressed down an automatic measurement can be implemented There are 20 types of measurements and 4 measurement results can be displayed simultaneously Term interpretation Vpp Peak to Peak Voltage Vmax The maximum amplitude The most positive peak voltage measured over the entire waveform Vmin The minimum amplitude The most negative peak voltage measured over the entire waveform Vamp Voltage bet
9. Vamp amplitude difference between Cursor and Cursor 2 displayed in the increment window The current position of Cursor is displayed in the Cursor window and that of Cursor2 is displayed in the Cursor2 window see Fig 5 49 Fig 5 49 wave of Vamp cursor measurement 63 User Manual of OWON Digital Storage Oscilloscope Carry out the following operation steps for the Freq cursor measurement 1 Press CURSOR and recall the CURS MEAS menu 2 Press F1 and choose Freq for Type with two purple dotted lines displayed along the vertical direction of the screen indicating the corrersponding Cursor and Cursor 2 3 Adjust the positions of CURSORI and CURSOR2 according to the measured waveform with the period and frequency of Cursor and Cursor 2 displayed in the increment window The current position of Cursorl is displayed in the Cursor window and that of Cursor2 is displayed in the Cursor2 window see Fig 5 50 Fig 5 50 wave of Freq cursor measurement How to use Autoscale The function is applied to follow up signals automatically even if the signals 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 The menu is as follows OF Turn off Autoscale Autoscale ON Turn on Autoscale Vertical Follow up and adjust vertical scale without changing horizontal setting Mode Horizontal F
10. and the oscilloscope will automatically adjust the waveforms of the two channels into the proper display state Push down the MEASURE button to show the MEASURE menu Press the F1 menu selection button and choose Source Press the F2 menu selection button and choose CH1 Press the F3 menu selection button and choose CH2 Press the F1 menu selection button again and choose Type Press the F2 menu selection button and choose Pk Pk Press the F3 menu selection button and choose Pk Pk Read the peak to peak values of Channel 1 and Channel 2 from the displayed menu see Fig 6 2 69 User Manual of OWON Digital Storage Oscilloscope 11 Calculate the amplifier gain with the following formulas Gain Output Signal Input signal Gain db 20xlog gain Fig 6 2 Wave Form of Gain Measurement Example 3 Capture the Single Signal The digital storage oscilloscope takes the lead in providing the convenience capturing of such non periodic signals as pulse and burr etc If you intent to capture a single signal you can not set the trigger level and the trigger edge unless you have particular priori knowledge of this signal 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 l
11. damage to the instrument caused by the transportation please keep the package With the transportation department or the LILLIPUT s distributor responsible for this business informed about it a repairing or replacement of the instrument will be arranged by the LILLIPUT How to implement the Function Inspection Make a fast function check to verify the normal operation of the instrument according to the following steps 1 Connect the Instrument to the Power and Push down the Power Switch Button The instrument carries out all self check items and shows the prompt Press any Key Enter system Press the 8 UTILITY button to get access to the FUNCTION menu and push down F2 the menu selection button to call out the function Recall Factory The default attenuation coefficient set value of the probe in the menu is 12 3 User Manual of OWON Digital Storage Oscilloscope 10X 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 and the ground clamp to the connector of the probe compensator Press the 7 AUTOSET Button The square wave of 1 KHz frequency and 5V peak peak value will be displayed in several seconds see Fig 4 4 TRI kA TRIG MODE Fig 4 4 Auto set Check CH2 by repeating Step 2 and Step 3
12. ee ey ee ere Or ee ere ON CH1 20d5 2okKHz D IY SOOKS s _ EXT 0 00my Fig 5 39 FFT wave Saving 54 User Manual of OWON Digital Storage Oscilloscope How to Implement the Auxiliary System Function Setting Press the UNTILITY button and the menu is displayed in the screen as Fig 5 40 Fig 5 40 Function Menu The description of the Auxiliary Function Menu is shown as the following table Setting System Status Display the system function menu Recall Factory a Call out the factory settings Do Self Cal E Carry out the self calibration procedure English system 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 5C the self calibration procedure should be executed to obtain the highest level of accuracy Before executing the self calibration procedure disconnect the probe or wire and the input connector Then press the F3 menu selection button and choose Do Self Cal After confirming it is all set push down F3 button and choose Do Self Cal entering the self calibration procedure of the instrument SYS STAT System State Press the F1 menu selection button and choose SYS STAT item The menu pops up in the screen as Fig 5 41 55 User Manual of OWON Digital Storage Oscilloscope Fig 5 41 SYS STAT Menu The
13. menu CURS MEAS in the screen which includes Vamp Measurement and Freq Measurement at the mode of FFT shown as Fig 5 48 Fig 5 48 CURS MEAS Menu The description of the cursor measurement menu is shown as the following table 62 User Manual of OWON Digital Storage Oscilloscope Setting OFF Switch off the cursor measurement ime Vamp Display the Vamp measurement cursor and menu Freq Display the Freq measurement cursor and menu MATH FFT Display the channel for the cursor measure Delta Read the difference between cursors Read the position of Cursor the Freq is read Cursor with reference to the start point of freq spectrum and the Vamp is to the cursor F Read the position of Cursor 2 the Freq is read Cursor 2 with reference to the start point of freq spectrum and the Vamp is to the cursor F When carrying out the cursor measurement the position of Cursor 1 can be adjusted with the CURSOR1 VERTICAL POSITION knob of Channel 1 and that of Cursor 2 can be adjusted with the CURSOR2 VERTICAL POSITION knob of Channel 2 Perform the following operation steps for the Vamp cursor measurement 1 Press CURSOR and recall the CURS MEAS menu 2 Press FI and choose Vamp for Type with two purple dotted lines displayed along the horizontal direction of the screen indicating CURSORI and CURSOR2 3 Adjust the positions of CURSORI and CURSOR2 according to the measured waveform with the absolute value of the
14. pulse width condition The Pulse Width Trigger Menu is shown as Fig 5 21 38 User Manual of OWON Digital Storage Oscilloscope Fig 5 21 Pulse Width Trigger menu Pulse Width Trigger menu list CH2 Select CH2 as the trigger source Mode Pulse Hle pulse width less than f gt 4L pulse width more than 4L_ Pulse width equal to E Pulse width less than To select pulse width condition 24 Pulse width more than Pulse width equal to 24ns 10s Turn TRIG LEVEL knob to set time Acquire waveform whatever detect trigger condition or not Trigger Only acquire waveform when match mode trigger condition Only acquire waveform for single time when detect trigger condition then stop Not allow DC portion to pass Allow all portion pass Cone 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 Holdoff 100ns 10s Turn TRIG pee knob to set time slot before another trigger event Reset 39 User Manual of OWON Digital Storage Oscilloscope Slope Trigger Slope trigger sets the oscilloscope as the positive negative slope trigger within the specified time The Slope Trigger Menu is shown as Fig 5 22 Fig 5 22 Slope Trigge menu Slope Trigger menu list MENU SETTING INSTRUCTION CH1 Select CH1 as the trigger source Source l CH2 Select CH2 as the trigger source e tk When Set slope condition
15. repair any damage or malfunction caused by the use of non Lilliput supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product Please contact the nearest Lilliput s Sales and Service Offices for services or a complete copy of the warranty statement Excepting the after sales services provided in this summary or the applicable warranty statements Lilliput will not offer any guarantee for maintenance definitely declared or hinted including but not limited to the implied guarantee for marketability and special purpose acceptability Lilliput should not take any responsibilities for any indirect special or consequent damages User Manual of OWON Digital Storage Oscilloscope Table of Contents Gener l Safety Requirements ssshissesersiieiasdeceustcowsseesebsunasavebiaaaeiecens taeesteerpubhenctateiueineleceaees 3 2Safety TOTS and SVINVONS oiriin aa EOR E A E RE 4 3 General Characteristics of the PDS Series Oscilloscope cccccccseeresesessssssesssccccccccccccees 6 4 Junior User Guidebook ricer E E E NS 7 Introduction to the Front Panel and the User s Interface of the PDS series Oscilloscope 8 ITIVE D a IU EEE E E E A E E E E E E T 8 Contrlo key atid Knob G tedii ess eae ee ieee eae eae aed tela ee oak ah 9 USEF interlace INEY OCUCUION soseri neeaae ae aaa eaaa aaa aa aiaa 10 How to impleme
16. than the normal signal level and then presses the RUN STOP button and waits When there is a burr occurring the instrument will trigger automatically and record the wave form generated during the period around the trigger time With the HORIZONTAL POSITION knob in the horizontal control area in the panel rotated you can change the horizontal position of the trigger position to obtain the negative delay making an easy observation of the waveform before the burr occurs see Fig 6 3 To r RAAME imit MILII 7 CHI 1 04u Fig 6 3 Capture the Single Signal 71 User Manual of OWON Digital Storage Oscilloscope Example 4 Analyze the Details of a Signal Observe the Signal Containing Noises If the signal is interfered by the noise the noise may cause a failure in the circuit For the analyzing of the noise in detail please operate the instrument according to the following steps 1 Press the ACQUIRE button to display the ACQU MODE menu 2 Press the F2 menu selection button and choose Peak Detect In this case the screen display contains the wave form 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 detection See Fig 6 4 Fig 6 4 Wave Form of the Signal Containing Noises Separate Noises from the Signal When analyze the wave form of a signal you should remove the noise contained in it For the reduction of the random noi
17. the BNC namely the channel connector Check whether the probe is properly connected with the object to be measured Check whether there is any signal generated from the object to be measured the trouble can be shot by the connection of the channel from which there is a signal generated with the channel in fault 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 4 There is wave form displayed but it is not stable Check whether the Source item in the TRIG MODE menu is in conformity with the signal channel used in the practical application Check on the trigger Type item The common signal chooses the Edge trigger mode for Type and the video signal the Video Only if a proper trigger mode 1s applied the wave form can be displayed steadily Try to change the trigger coupling into the high frequency suppress and the low frequency suppress to smooth the high frequency or low frequency noise triggered by the interference No Display Responses to the Push down of RUN STOP Check whether Normal or Signal is chosen for Polarity in the TRIG MODE menu and the trigger level exceeds the wave form range If it is make the trigger level is centered in the screen or set the trigger mode as Auto In addition wi
18. Batter On Battery power content symbol on z Off Battery power content symbol off Display Type With the F1 menu selection button pushed down you can shift between Vectors and Dots types The differences between the two display types can be observed through the comparison between Fig 5 32 and Fig 5 33 Fig 5 32 Display in the Vector Form 49 User Manual of OWON Digital Storage Oscilloscope OWON Trig d bowie Pos 0 000n5 DISP SETUP Type Dots Persist OFF Format YT Carry Bitmap Battery Off CH1 10v CHZ 50 0mu M 500us CHI 15 Zu CH1 999 942Hz Fig 5 33 Display in Dots form Persist When the Persist function is used the persistence display effect of the picture tube oscilloscope can be simulated the reserved original data is displayed in fade color and the new data is in bright color With the F2 menu selection button different persistence time can be chosen Isec 2sec 5sec Infinite and Closed When the Infinite option is set for Persist time the measuring points will be stored till the controlling value is changed see Fig 5 34 OWON Cirig beim M Pos 0 000n5 DISP SETUP Type Yectors Persist Infinite Format YT Carry Bitmap Battery Of f CH1 20y CH 50 0my M 5 0us _ CHI 800my CH1 111 971KHz Fig 5 34 Infinite Persistence Display 50 User Manual of OWON Digital Storage Oscilloscope XY Format This format is only applicable to Channel 1 and Channel 2 Af
19. Hz 2GS s half channel 1G S s each channel Dual channel 2M points on each channel for the Record length Reading out with the cursor Twenty automatic measurement functions Autoscale function Color liquid crystal display of high resolution and high contrast with adjustable back light Storage and call out of waveforms Automatic setting function provided capable of fast setting Multiple waveform calculation function Built in FFT function Implementation of detecting the average and peak values of the waveform Digital real time oscilloscope Edge video pulse slope and alternate triggering function RS232 or USB communication ports Different continuous displaying time Multiple Language User Interface Half channel is when only one channel is turned on User Manual of OWON Digital Storage Oscilloscope 4 Junior User Guidebook This chapter deals with the following topics mainly Digital Storage Oscilloscope Introduction to the front panel and the user s interface of the PDS series oscilloscope 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 User Manual of OWON Digital Storage Oscilloscope Introduction to the Front P
20. Trigger on non synchronized signals The Single Trigger and Alternate Trigger menus are described respectively as follows Single trigger Single trigger has four modes edge trigger video trigger pulse triggger and slope trigger Edge Trigger It happens when a specified voltage level passes through the trigger input in the specified slope direction Video Trigger Carry out field or line video trigger on the standard video signal Pulse Trigger Use this trigger type to catch pulses with certain pulse width Slope Trigger The oscilloscope begins to trigger according to the signal rising or falling speed The four trigger modes in Single Trigger are described respectively as follows Edge Trigger An edge trigger occurs on trigger threshold value of input signal Select Edge trigger Mode to trigger on Rising edge falling edge or rising amp falling edge The Edge Trigger Menu is shown as Fig 5 19 36 User Manual of OWON Digital Storage Oscilloscope Fig 5 19 Edge trigger menu Edge menu list MENU SETTING INSTRUCTION Select CH1 as the trigger source Select CH2 as the trigger source Source Ext trigger Ext trigger divide to 5 and extend trigger level range AC LINE AC Line as resource trigger signal Set vertical channel trigger type for edge trigger Rising Trigger in signal rising edge Slope S Falling Trigger in signal falling edge Auto Acquire waveform whatever detect trigger condition or not Trigg
21. VOLTS DIV knob making the amplitudes of two signals equal in the rough Push down the DISPLAY button and recall the DISP SET menu Press the F3 menu selection button and choose XY for Format The oscilloscope will display the input and terminal characteristics of the network in the Lissajous graph form Adjust the VOLTS DIV and VERTICAL POSITION knobs optimizing the 73 User Manual of OWON Digital Storage Oscilloscope wave form 9 With the elliptical oscillogram method adopted observe and calculate the phase difference see Fig 6 6 The signal must be centered and kept in the horizontal direction Fig 6 6 Lissajous Graph Based on the expression sin A B or C D where q is the phase difference angle and the definitions of A B C and D are shown as the graph above As a result the phase difference angle can be obtained namely q arcsin A B or arcsin C D If the principal axis of the ellipse 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 a 2 or 32 2 27 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 n 2 n or a 32 2 Example 6 Video Signal Trigger Observe the video circuit of a television apply the video trigger and obtain the stable video output signal display Video Field Trigger
22. a frequency higher than 150 kHz 4 Holdoff A time interval before the oscilloscope responses to next trigger signal During this Holdoff period the trigger system becomes blind to grigger signals This function helps to view complex signals such as an AM waveform Press Holdoff button to activate TRIG LEVEL knob then turn it to adjust Holdoff time 45 User Manual of OWON Digital Storage Oscilloscope How to Operate the Function Menu The function menu control zone includes 7 function menu buttons and 3 immediate execution buttons SAVE RCL MEASURE ACQUIRE UTILITY CURSOR DISPLAY AUTOSCALE AUTOSET RUN STOP and U DISK COPY How to Implement Sampling Setup Press the ACQUIRE button and the menu is displayed in the screen shown as Fig 5 27 ACQU MODI Fig 5 27 ACQU MODE Menu The description of the Sampling Setup Menu is shown as follows Setting Sample __ General sampling mode It is used for the detection of the jamming burr and the Peak Detect possibility of reducing the confusion It is used to reduce the random and don t care noises with the optional number of averages 4 16 64 128 Choose the number of averages Average 5 9 Change the ACQU Mode settings and observe the consequent variation of the wave form displayed 46 User Manual of OWON Digital Storage Oscilloscope OWON Ctrig d beret Pos 0 000ns ACQU MODE Sample Peak Detect Average Averages 16 CH1 S
23. ain range in other words the signal can be expanded in the horizontal or vertical direction When the horizontal time base equal to or is less than 50ms the horizontal time base can be expanded for 4 divisions downwards U DISK COPY Insert U disk into USB port then press COPY key and you can save the waveform data into the U disk There is two formats available for choice Vector format and Bitmap which the 66 User Manual of OWON Digital Storage Oscilloscope corresponding name will be WAVE1 BIN WAVE2 BIN WAVE3 BIN or WAVE1 BMP WAVE2 BMP WAVE3 BMP Then you can open the files in computer by connecting USB disk to computer Noted During the U disk saving procedure some notes such as Waveform saving Waveform saved USB already connected USB connection interrupt etc will be prompted 67 User Manual of OWON Digital Storage Oscilloscope 6 Demonstration Example 1 Measurement of Simple Signals Observe an unknown signal in the circuit and display and measure rapidly the frequency and peak to peak value of the signal 1 Carry out the following operation steps for the rapid display of this signal 1 Set the probe menu attenuation coefficient as 10X and that of the switch in the probe switch as 10X 2 Connect the probe of Channel 1 to the measured point of the circuit 3 Push down the AUTOSET button The oscilloscope will implement the AUTOSET to make the wave form
24. anel and the User s Interface of the PDS series Oscilloscope When you get a new type oscilloscope you should get acquainted with its front panel at first and the PDS series mixed digital storage oscilloscope is no exception This chapter makes a simple description of the operation and function of the front panel of the PDS series mixed oscilloscope enabling you to be familiar with the use of the PDS series mixed oscilloscope in the shortest time The PDS series mixed oscilloscope offers a simple front panel with distinct functions to users for their completing some basic operations in which the knobs and function pushbuttons are included The knobs have the functions similar to other oscilloscopes The 5 buttons in the column on the right side of the display screen are menu selection buttons defined as F1 to F5 from top to bottom respectively 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 application directly Front panel Fig 4 1 Front panel overview 1 Power on off 2 Display area 3 Control key and knob area 4 Uslot 5 LA signal input 6 DSO signal input 7 Measurement signal output User Manual of OWON Digital Storage Oscilloscope 8 Power and charging indication Green light indicate AC supply and battery full charged yellow light indicate under charging Contrlo
25. approved to be used in this user state Connect or Disconnect Correctly When the probe or testing wire is connected to the power lead please do not connect and disconnect the probe or testing wire at random Product Grounded This product is grounded through the power lead grounding conductor In order to prevent any electric shocking the grounding conductor must be connected to the ground It requires guarantee that this product has been already grounded correctly before any connection with its input or output terminal When powered by AC power it is not allowed to measure AC power source directly because 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 risks please pay attention to all the nominal values and marks of this product Before implement any connections for this product please read the user s manual of this product to understand the information about the rated values further Do not make any operations without the instrument cover installed If the cover or panel has already been removed please don t operate this product Use the proper fuse Only the fuse complying with the spec
26. ator Output Voltage About 5V with the Peak to Peak value equal to or greater Typical than 1MQ of load Frequency Typical Square wave of 1KHz Power Mains Voltage 100 240 VAC RMS 50 60Hz CAT II 1A T grade 250V Environment II EENT Working temperature 0 C 40 C Storage temperature 20 C 60 C Relative Humidity Height Operating 3 000 m Non operating 15 000 m Cooling Method Mechanical Specifications 2 2 kilogram Interval Period of Adjustment One year is recommended for the calibration interval period 81 User Manual of OWON Digital Storage Oscilloscope 9 Appendix Appendix A Enclosure Standard Accessories Passive probe 2 1 2 m 1 1 10 1 CD x 1 PC link application software RS232 data line or USB data line Power line one up to the standards of the country in which it is used User Manual One Options Battery Appendix B Maintenance Cleaning and Repairing General Maintenance Please don t store or put the instrument in the place where the liquid crystal display will be directly exposed to the sunlight for a long time Caution The instrument or probe should not be stained with the spraying agent liquid and solvent to avoid any damage to it Cleaning Check the probe and instrument regularly according to their operating state Clean the external surface of the instrument following the steps shown below 1 Please wipe the dust from the instrum
27. be detected on each channel simultaneously Only if the waveform channel is in the ON state can the measurement be carried out No automatic measurement can be made in the following situation 1 on the saved waveform 2 on the mathematical waveform 3 on the XY format 4 on the Scan format Measure the frequency the peak to peak value of the Channel CH1 and the mean the RMS of the Channel CH2 following below steps 1 Press the F1 menu selection button and choose Source Press the F2 menu selection button and choose CH1 Press the F3 menu selection button and choose CH1 Press the F4 menu selection button and choose CH2 Press the F5 menu selection button and choose CH2 Press the F1 menu selection button and choose Type Press the F2 menu selection button and choose Freq 2 ey ey at eS SY Press the F3 menu selection button and choose PkK Pk 58 User Manual of OWON Digital Storage Oscilloscope 9 Press the F4 menu selection button and choose Mean 10 Press the F5 menu selection button and choose Cye RMS The measured value will be displayed in the reading window automatically see Fig 5 44 CHI 30 40u Fig 5 44 Automatic Measurement How to Implement the Cursor Measurement 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 Measurement and Time Measurement at normal model
28. d workmanship for a period of three years from the date of purchase of the product by the original purchaser from the Lilliput company And the warranty period of accessories such as probe battery adapter is one year This warranty only applies to the original purchaser and is not transferable to the third party If the product proves defective during the warranty period Lilliput either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product Parts modules and replacement products used by Lilliput for warranty work may be new or reconditioned to like new performance All replaced parts modules and products become the property of Lilliput In order to obtain service under this warranty Customer must notify Lilliput of the defect before the expiration of the warranty period Customer shall be responsible for packaging and shipping the defective product to the service center designated 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 b to repair damage resulting from improper use or connection to incompatible equipment c to
29. ent 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 disconnection of power It is recommended to scrub with soft detergent or fresh water Please don t apply any corrosive chemical cleaning agent to prevent the instrument or probe from damage LA Ware Before power on again for operation it is required to confirm that the instrument has already been dried completely avoiding any electrical short circuit or bodily injury resulting form the moisture 82 User Manual of OWON Digital Storage Oscilloscope Appendix C Battery Using Guide Battery electric quantity indicating symbols including E Wl ana 1 Charging the oscilloscope The lithium battery maybe not be charged when delivery Please charge the battery for 12 hours to make sure enough power to supply The battery 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 E k and L 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 environment temperature is not allowed to exceed the permissible value given in technical specification R
30. eplacing the Lithium Battery Unit It is usually not required to replace the battery unit But when it is required to replace it only qualified personnel can carry out this operation and only use the same specification lithium battery 83 v Ra EVROPSK UNIE OPPA European Social Fund Prague amp EU We invest in your future
31. er Normal Only acquire waveform when match trigger condition mode Single Only acquire waveform for single time when detect trigger condition then stop AC Not allow DC portion to pass DC Allow all portion pass Conine HF Not allow high frequency of signal pass and only low frequency portion pass LF Not allow low frequency of signal pass and only high frequency portion pass 10s 100ns Turn TRIG LEVEL knob to set time slot before another Holdoff trigger event HOGG Reset hold time to 100ns Reset Video Trigger Choose video trigger to trigger on fields or lines of NTSC PAL or SECAM standard video signals Trig menu refer to Fig 5 20 3l User Manual of OWON Digital Storage Oscilloscope Fig 5 20 Video trigger menu Video menu list Select CH1 as the trigger source Select CH2 as the trigger source Source Ext trigger Ext trigger divide to 5 to extend trigger level range Line Synchronic trigger in video line Field Synchronic trigger in video field Odd Field Synchronic trigger in video odd filed EvenField Synchronic trigger in video even field Designed Line Synchronic trigger in designed video line NTSC l l PAL SECAM Video modulation setting Holdoff 100ns 10s Turn oe LEVEL knob to set time slot before another trigger event eee a Reset hold time to 100ns Reset Pulse Width Trigger Pulse trigger occurs according to the width of pulse The abnormal signals can be detected through setting up the
32. evel and the trigger edge The operation steps are as follows l Set the probe menu attenuation coefficient to 10X and that of the switch in the probe to 10X Adjust the VOLTS DIV and SEC DIV knobs to set up a proper vertical and horizontal ranges for the signal to be observed Press the button ACQUIRE to display the ACQUIRE Mode menu Press the F2 menu selection button and choose Peak Detect Press the TRIG MENU button to display the Trigger Mode menu 70 User Manual of OWON Digital Storage Oscilloscope 6 de 8 9 10 11 12 Press the F1 menu selection button and choose Single as the type Press the F3 menu selection button and choose Edge as the mode Press the F4 menu selection button and choose Rising as the slope Press the F5 menu selection button to next menu Press the F2 menu selection button and choose Single as the trigger mode Rotate the LEVEL knob and adjust the trigger level to the mid value of the signal to be measured If the Trigger State Indicator at the top of the screen does not indicate Ready push down the RUN STOP button and start Acquire 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
33. ff For the screen display see Fig 5 6 and Fig 5 7 24 User Manual of OWON Digital Storage Oscilloscope OWON Trig d perenne M Pos 0 000ns CH1 SETUP ee Coupling ee eye eee ee re DC E E free al eter Pere Band Limit OFF 100MHz Channel ON i Probe POT A es ee ayia E E a NONE Se akon OY eA A IO ae 10 X ee eee E CEN SE Inverted CH1 Zvu CH2 20 0mu M 500us CHI 2 56y CH1 1 00000KHz Fig 5 6 Wave Form not inverted OWON Trig d M Pos 0 000ns CH1 SETUP i i i Coupling DC Band Limit OFF 100MHz Channel ON Probe 10 X Inverted CH1 Zvu CH2 20 0mu M 500us Z CHi 2 56y CH1 1 00000KHz Fig 5 7 Wave Form Inverted Implementation of Mathematical Manipulation Function The Mathematical Manipulation function is used to show the results of the additive multiplication division and subtraction operations between Channel 1 and Channel 2 and the FFT operation of CH1 or CH2 23 User Manual of OWON Digital Storage Oscilloscope The corresponding FCL Functional Capabilities List of the Wave Form Calculation CH1 CH2 Subtract the Channel 2 wave form from the Channel 1 wave form CH2 CH1 Subtract the Channel 1 wave form from the Channel 2 wave form CH1 CH2_ Add the Channel 1 wave form to the Channel 2 CH1 CH2 Multiply Channel 1 wave form by Channel 2 wave form CH1 CH2 Channel 1 wave form is divided by the Channel 2 wave form FFT Waveform of Corresponding FFT operation
34. gering or Coupling settings 5 At the mode of Autoscale if adjust the vertical position voltage division trigger level or time scale of CH1 or CH2 the oscilloscope will turn off Autoscale function and if press AUTOSET again the oscilloscope will enter into Autoscale 65 User Manual of OWON Digital Storage Oscilloscope 6 Turn off the submenu at the Autoscale menu the Autoscale is off and turn on the submenu still enters into the function 7 When video triggering the horizontal time scale is 50us If one channel is showing edge signal the other channel is showing video one the time scale refers to 50us as video one as standard 8 While the Autoscale is working below settings will be made forcibly 1 The unit will switch from non main time base to main time base status 2 The unit will siwtch to Peak detection menu while in the state of Average sampling mode How to Use Executive Buttons 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 measurement of the signal The function items of AUTOSET are shown as the following table Function Items Setting Acquisition Mode RUN STOP Enable or disable the waveform sampling Notice Under the Stop state the vertical division and the horizontal time base of the waveform can be adjusted within a cert
35. gital Storage Oscilloscope 1KHz OWON STOP M Pos 1 030KHz FFT ON i oa Poa a o ee L a Source CH1 Windo a a Blackma Format FT Zoom x2 CHi 20dB 125Hz DIV 5KS s a CH1 1 03048KHz Fig 5 9 Blackman window OWON STOP M Pos 1 030KHz FFT ery ON source CH1 Window Hamming Format dB CH1 0dB 25Hz DI 5KS s y CH1 1 02973EHz Fig 5 10 Hamming window 29 User Manual of OWON Digital Storage Oscilloscope Cy Ue Sa PRU Sie ol eee elie Ties Site es Site tals ea ess eet eG ST feet FST STD SUNS Gliese is OU Sel SoU Til is gees ST Pali SIO A a Sele Uae eee SS ie CHi 20dB 950Hz DI 5KS s Fig 5 11 Rectangle window OWON STOP M Pos 1 030KHz OWON STOP M Pos 1 030KHz FFT FFT ON Source CH1 Windows Rectangle Format dB Pa CH1 1 03178EKHz FFT CH1l 20d 50Hz DI SKS s Fig 5 12 Hanning window Quick Tips mM If desired use the zoom feature to magnify the FFT waveform E Use the default BV RMS scale to see a detailed view of multiple frequencies even if they have very different amplitudes Use the linear RMS scale to see an overall view of how all frequencies compare to each other E Signals that have a DC component or offset can cause incorrect FFT waveform component magnitude values To minimize the DC component choose AC Coupling 30 FFT ON Source CH1 Format dB Pa CH1 1 02993KHZz User Manual of OWON
36. he probe to the instrument and connect the ground terminal to the earth How to Implement Auto calibration The auto calibration application can make the oscilloscope reach the optimum condition rapidly to obtain the most accurate measurement value You can carry out this application program at any time but when the range of variation of the ambient temperature is up to or over 5 C this program must be executed For the performing of the self calibration all probes or wires should be disconnected with the input connector first Then press the 8 UTILITY button to call out the FUNCTION menu push down the F3 menu selection button to choose the option Do Self Cal finally run the program after confirming that everything is ready now User Manual of OWON Digital Storage Oscilloscope Introduction to the Vertical System Shown as Fig 4 9 there are a series of buttons and knobs in VERTICAL CONTROLS The following practices will gradually direct you to be familiar with the using of the vertical setting Fig 4 9 Vertical Control Zone 1 Use the button VERTICAL POSITION knob to show the signal in the center of the waveform window The VERTICAL POSITION knob functions the regulating of the vertical display position of the signal Thus when the VERTICAL POSITION knob is rotated the pointer of the earth datum point of the channel is directed to move up and down following the wave form Measuring Skill If
37. he window time base set value 13 The reading shows the main time base set value 14 The two yellow dotted lines indicate the size of the viewing expanded window 15 The icon shows the coupling mode of the CH2 channel indicates the direct current coupling 66 indicates the AC coupling indicates GND coupling 16 The reading shows the vertical scale factor the Voltage Division of the CH2 channel 17 The icon indicates the coupling mode of the CH1 channel non The icon indicates the direct current coupling The icon indicates the AC coupling The icon indicates GND coupling 18 The reading indicates the vertical scale factor the Voltage Division of the CH1 channel 19 The information shows the zero point positions of CH1 or CH2 channel 20 The yellow pointer shows the grounding datum point zero point position of the waveform of the CH2 channel If the pointer is not displayed it shows that this channel is not opened 21 The red pointer indicates the grounding datum point zero point position of the waveform of the CH1 channel If the pointer is not displayed it shows that the channel is not opened 1 User Manual of OWON Digital Storage Oscilloscope 22 The positions of two purple dotted line cursors measurements 23 The reading shows the frequence of the two channels It is a 6 digits cymometer Its measurement range of frequency is 2Hz to full bandwidth whe
38. hoose CH1 for Source Adjust the positions of CURSOR1 and CURSOR2 according to the measured waveform with the absolute value of the voltage amplitude difference between Cursor and Cursor 2 displayed in the increment window The current position of Cursor1 is displayed in the Cursor window and that of Cursor2 is displayed in the Cursor2 window see Fig 5 46 Weeks oH O r 2 Tks O S l O OLY De eek E T e b ohe ik Beta FSP Oe oa Oe OO bee dh on CHI 3 20u Fig 5 46 Waveform of Voltage Cursor Measurement Carry out the following operation steps for the time cursor measurement of the channel CH1 1 Press CURSOR and recall the CURS MEAS menu 2 Press the F1 menu selection button and choose Time for Type with two purple dotted lines displayed along the vertical direction of the screen which indicating Cursor 1 and Cursor 2 3 Press the F2 menu selection button and choose CH1 for Source 4 Adjust the positions of CURSORI and CURSOR2 according to the measured waveform with the period and frequency of Cursorl and Cursor 2 displayed in the increment window The current position of Cursor is displayed in the Cursorl window and that of Cursor2 is displayed in the Cursor2 window see Fig 5 43 61 User Manual of OWON Digital Storage Oscilloscope CH1 0 00mu Fig 5 47 Wave Form of Cursor Measurement the Cursor Measurement for FFT model Press the CURSOR button to display the cursor measurement function
39. ideo Signal Trigger iciscscsssucasass cacccessscassasiseceuaseccsssesisccessscecsoaascccsscousessasascusescassses 74 TBS OEE EE EE E E OEEO OREO 76 8 Lechnical Specifications scirrata aa a a aale 77 General Technical Specifications sseccooosssssccccocssssscecccoossssscccocossssseceocossseseeccsosssssseeeosssssssee 81 DPD CINGIN siviesics iiuiee catsheaacesavacaiuiutaestiiuawe cot sbuaasovecatwiuiees ante Anedeueen tanec 82 ApPPendir A Enclosure aia iebiaesaucsiasesecsiarancotae odeeusassnucnesvadenss 82 Appendix B Maintenance Cleaning and Repairing essccsssssseecccossssececcocsssssecccocsssseceesososoe 82 Appendix C Battery Using Guide siccescssicccstecicvasvossscsivecdivesvedaceesdeceasesvesiessbeetdevossetessatbedeseessess 83 User Manual of OWON Digital Storage Oscilloscope 1 General Safety Requirements Before any operations please read the following safety precautions to avoid any possible bodily injury and prevent this product or any other products connected from damage In order to avoid any contingent danger this product is only used within the range specified Only the qualified technicians can implement the maintenance Prevent the Fire or Bodily Injury Connect the probe correctly The grounding end of the probe corresponds to the grounding phase Please don t connect the grounding end to the positive phase Use the proper power line Only use the power cord specially provided for this product or that has been
40. ified type and nominal value for this product can be used Avoid touching any exposed circuit When the product is on power please don t touch the uncovered contacts and parts Please don t make any operations while there is an uncertain fault emerged If suspecting damage to this product please contact the qualified maintenance personnel for check Keep a good ventilation condition Please consult the detailed installation instruction in the user s manual so that this product can be erected correctly keeping it under a good ventilation condition Please do not make any operations in a moist environment Please do not make any operates in an explosive environment 3 User Manual of OWON Digital Storage Oscilloscope Keep the products surface clean and dry 2 Safety Terms and Symbols Safety Terms Terms in this manual The following terms may appear in this manual LN Warning A warning statement indicates the conditions and actions which may endanger the life safety damage to this product or other property Note A note statement indicates the conditions and actions which may cause Terms on the product 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 pro
41. ion with the sequence of 1 2 5 The vertical sensitivity goes up when the knob 1s rotated clockwise and goes down when the knob is rotated anticlockwise 3 When the vertical position of the channel wave form is adjusted the screen shows the information concerning the vertical position at the lower left corner see Fig 5 13 31 User Manual of OWON Digital Storage Oscilloscope CH1 400mu Fig 5 13 Information about Vertical Position How to Set the Horizontal system The HORIZONTAL CONTROLS includes the HORIZONTAL NENU button and such knobs as HORIZONTAL POSITION and SEC DIV l HORIZONTAL POSITION knob this knob is used to adjust the horizontal positions of all channels include those obtained from the mathematical manipulation the analytic resolution of which changes with the time base SEC DIV knob it is used to set the horizontal scale factor for setting the main time base or the window HORIZONTAL MENU button with this button pushed down the screen shows the operating menu see Fig 5 14 32 User Manual of OWON Digital Storage Oscilloscope Fig 5 14 Time Base Mode Menu The description of the Horizontal Menu is as follows Setting The setting of the horizontal main time base is Main Time Base l used to display the wave form Set Window A window area is defined by two cursors This function is forbidden at the FFT mode disable Zone Window The defined window area for display is e
42. key and knob area 4 5 6 Fig 4 2 Keys Overview 1 1 Menu option setting FI1 F5 2 Switch Switch includes two keys and one knob The function for keys of OSC LA and Info is reserved For DSO cursor knob is idle But it takes effect in magnifying or minificating the waveform after FFT operation when the mode is FFT 3 Function key area For DSO 0 5 keys are idle and 6 F refer to different DSO function menu 4 Vertical control area It s including 3 keys and 4 knobs For DSO CH1 menu and CH2 menu correspond to setting menu in CH1 and CH2 Wave Math key refer to math menu the math menu consists of six kinds of operations including CH1 CH2 CH2 CH1 CH1I CH2 CH1I 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 5 Horizontal control area with 2 knob and 1 key For DSO Horizontal position knob control trigger position Volts Div control time base Horizontal menu key refer to horizontal system setting menu 6 Trigger control area with 4 keys and 1 knob For DSO Trig adjust knob is to adjust trigger voltage Other four keys refer to trigger system setting User Manual of OWON Digital Storage Oscilloscope User interface introduction 1g ee eee 16 15 14 l3 1 ae 10 Fig 4 3 Illustrative Drawing of Display Interfaces The Trigger State indicates the f
43. l accordingly If the attenuation coefficient of the probe is 1 1 that of the oscilloscope input channel should also be set to 1X to avoid any errors presented in the displayed scale factor information and the measured data Take the Channel 1 as an example the attenuation coefficient of the probe is 10 1 the operation steps is shown as follows 1 Press the CH1 MENU button access CH1 SETUP menu 2 Press the F4 menu selection button and select 10X for the probe The Fig 24 illustrates the setting and the vertical scale factor when the probe of the attenuation coefficient of 10 1 1s used 23 User Manual of OWON Digital Storage Oscilloscope Sau Fig 5 5 Regulation of the Attenuation Ratio of the Probe A List of the Attenuation Coefficient of Probes and the Corresponding Menu Settings Attenuation Coefficient of the Probe Corresponding Menu Setting 1 1 S X o ee 1X 100 1 100X 1000 1 1000X 5 Setting of Wave Form Inverted Wave form inverted the displayed signal is turned 180 degrees against the phase of the earth potential Taking the Channel 1 for example the operation steps are shown as follows 1 Press the CH1 MENU button and get access to the CH1 SETUP menu 2 Press the F5 menu selection button and select ON in the Inverted The wave form inverted function is initiated 3 Press the F5 menu selection button again and select OFF for Inverted item The function of wave form inverted 1s closed o
44. ly low frequency portion pass LF Not allow low frequency of signal pass and only high frequency portion pass 100ns Turn TRIG LEVEL knob to set time slot before another Holdoff 10s trigger event noe Reset hold time to 100ns Reset 44 User Manual of OWON Digital Storage Oscilloscope Term interpretation 1 Source Trigger can occur from several sources Input channels CH1 CH2 AC Line Ext Ext 5 Input It is the most commonly used trigger source The channel will work when selected as a trigger source whatever displayed or not Ext Trig The instrument can trigger from a third source while acquiring data from CH1 and CH2 For example you might want to trigger from an external clock or with a signal from another part of the test circuit The Ext Ext 5 trigger sources use the external trigger signal connected to the EXT TRIG connector Ext uses the signal directly it has a trigger level range of 1 6 V to 1 6 V The EXT 5 trigger source attenuates the signal by 5X which extends the trigger level range to 8 V to 8 V This allows the oscilloscope to trigger on a larger signal AC Line AC power can be used to display signals related to the power line frequency such as lighting equipment and power supply devices The oscilloscope gets triggered on its power cord so you do not have to input an AC trigger signal When AC Line is selected as trigger source the oscilloscope automatically set coupling to DC se
45. mplement the Auxiliary System Function Setting How to Implement the Automatic Measurement How to Implement the Cursor Measurement How to Use Autoscale function How to Use Executive Buttons How to set Utility It is recommended that you read this chapter carefully to get acquainted the various measurement functions and other operation methods of the PDS series oscilloscope User Manual of OWON Digital Storage Oscilloscope How to Set the Vertical System The VERTICAL CONTROLS includes three menu buttons such as CH1 MENU CH2 MENU and MATH MENU and four knobs such as VERTICA POSITION VOLTS DIV one group for each of the two channels Setting of CH1 and CH2 Every channel has an independent vertical menu and each item is set respectively based on the channel With the CH1 MENU or CH2 MENU menu button pushed down the system shows the operation menu of the corresponding channel see Fig 5 1 FF 100MHz CH1 SETUP_ Fig 5 1 Channel Setting Menu User Manual of OWON Digital Storage Oscilloscope The description of the Channel Menu is shown as the following list Setting AC Block the DC component in the input signal DC Unblock the AC and DC components in the input Coupling cna GROUND _ The Input signal is interrupted OFF 100MHz Get full bandwidth Band Limit ON 20MHz Limits the channel bandwidth to 20MHz to reduce display noise OFF Close the measurement channel Channel ON Open the meas
46. n the triggering mode is edge triggering it is a one channel cymometer and it can only measure the frequency of the tiggering channel When the triggering mode is alternating triggering it is a two channel cymometer and it can measure the frequency of two channels How to implement the General Inspection After you get a new PDS series oscilloscope it is recommended that you should make a check on the instrument according to the following steps 1 Check whether there is any damage caused by transportation If it is found that the packaging carton or the foamed plastic protection cushion has 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 accessory lost or damaged please get in touch with the distributor of LILLIPUT responsible for this service or the LILLIPUT s local offices 3 Check the Complete Instrument If it is found that there is damage to the appearance of the instrument or the instrument can not work normally or fails in the performance test please get in touch with the LILLIPUT s distributor responsible for this business or the LILLIPUT s local offices If there is
47. nded to the full screen size see Fig 5 18 FZone E i pp aa eee vindows CH1 20u CH2 20 0nu M 5 0us U 5o0ns gt CH1 B00nv CHi 99 9 14KHz Fig 5 18 Zone Window 33 User Manual of OWON Digital Storage Oscilloscope How to set trigger system Trigger is to determine when DSO starts to acquire data and waveform display Once trigger to be set correctly then it will convert the unstable display to meaning waveform When DSO start to acquire data it will acquire enough data to form waveform on left of trigger point DSO continues to acquire data when it waits for trigger condition happen Once it detect out the trigger it will acquire enough data continuously to form the waveform on right of trigger point Trigger control area include knob and 4 menu keys Trigger level trigger level knob to set signal voltage correspond to trigger point SET 50 set trigger level in middle vertical point of trigger signal voltage range this setting is disable at the FFT mode FORCE TRIG Force to a trigger signal and mainly to use in Normal and Single mode SET TO ZERO Trigger horizontal position set to Zero Trig MENU Press this key and panel display menu Trigger Control The oscilloscope provides two trigger types single trigger and alternate trigger Press F1 to choose Single trigger Use a trigger level to capture stable waveforms in two channels simultaneously Alternate trigger
48. nt the General Inspection ssssseecsoccssssecccccosssssececocsssesceceoosssssseecoosssssseeesso 12 How to implement the Function Inspection ssssseeceoosssseseccoccsssssececocsssesceccoossssesecesosssssseeesso 12 How to Implement the Probe Compensation ssssseeecosossssseccoccsssesecccocsssesceecoosssseseceoosssssseeesso 13 How to Set the Probe Attenuation Coefficient cccccsssscccsssscccsssscccssssccccsssscccsssccccsssscees 14 How to Use thie Prope Salecl yonni o a O Na 15 How to Implement Auto calibration sseseeccocsssssceccoccssseseccocosssssececocsssssseccoosssssseeesosssssseeesso 15 Introduction to the Vertical System sssssscccocssssseeccoccsssssececoosssssececocssseseeccosssssesecssosssssseeesso 16 Introduction to the Horizontal System ccsccccccsssssssssscccccccccsssssssccccssceesssssscccssssseessscecs 17 Introduction to the Trigger System cciscsicesicassiscaieesvaseicsevecensecvadsuasevediencbedsacievelevsceverssecttulsiacays 18 SAdvanced User GUIGCDOOK sisierriernnernn n a a i ai 19 How to Set the Vertical Sy Stein osiin easa aaea ansia aani 20 Implementation of Mathematical Manipulation Function s eeeeesocsssssseccoosssssseccoosssssseeesoo 25 U i Te E e a E E A A AS E O AA TE AIA O A T E aa asreaeaes 26 Application of VERTICAL POSITION and VOLTS DIV Kn0bS sssssssssecccceeccccssssssssssseeee 31 How to Set the Horizontal System ais scscissscessscccsccssescsssasiscccusssecs
49. ollow up and adjust horizontal scale without changing vertical setting BUI RINER Follow up and adjust the vertical and horizontal settings 64 User Manual of OWON Digital Storage Oscilloscope Only show one or two periods Wave Show Multi period waveforms If you want to measure the two channel signal you can do as the follows 1 Press Autoscale the function menu will appear on the right of the screen 2 Press F1 and choose ON 3 Press F2 and choose Horizontal Vertical for Mode item 4 Press F3 and choose ATATA for Wave item Then the wave is displayed in the screen showon as Fig 5 51 ABEE R S AR S O aS A a SN EE AAN O ARN OA E E E A EE S ER A E A e E AR e SEN a TE a Sets A STS aT SL ST Ts EES N E A Fig 5 51 Autoscale Horizontal Vertical multi period waveforms Note 1 Entering into Autoscale function and G flicker will be on the top left corner flicker every 0 5 second 2 At the mode of Autoscale the oscilloscope can self estimate Trigger Type Edge Video and Alternate and mode Edge Video If now you press Trigger mode or Type the forbidden information will display on the screen 3 At the mode of XY and STOP status pressing AUTO SET to enter into Autoscale DSO switches to YT mode and AUTO status 4 At the mode of Autoscale DSO is always in the state of DC coupling and AUTO triggering In this case the forbidden information will be showing when making Trig
50. ollowing information Auto The oscilloscope is under the Automatic mode and is collecting the waveform under the non trigger state Trig d The oscilloscope has already detected a trigger signal and is collecting the after triggering information 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 Waveform Viewing Area The purple pointer indicates the horizontal trigger position which can be adjusted by the horizontal position control knob The pointer indicates the trigger position in the internal memory This reading shows the time deviation between the horizontal trigger position and the window centre line which is regarded as 0 in the window center 10 User Manual of OWON Digital Storage Oscilloscope 6 It indicates the current function menu 7 It indicates the operation options for the current function menu which changes with the function menus 8 The purple pointer shows the trigger level position 9 The reading shows the trigger level value 10 The reading shows the trigger source 11 It shows the selected trigger type Rising edge triggering x Falling edge triggering AM Video line synchronous triggering wE Video field synchronous triggering 12 The reading shows t
51. on IOMHZ 40 Time delay between 150ps channel typical 1S s 1GS s half channel 1S s 500MS s each channel Horizontal PDS8102T Sampling rate range System 1S s 2GS s half channel 1S s 1G S s each channel PDS8202T 77 User Manual of OWON Digital Storage Oscilloscope Interpolation sinx x Record length 2M points on each channel 2ns div 100s div step by 1 2 5 PDS8102T Scanning speed S div Ins div 100s div step by 1 2 5 PDS8202T Sampling rate relay 100ppm time accuracy Single 1 interval Interval AAT accuracy time 100ppmxreading 0 6ns DC 100MHz Average gt l6 1 interval time 1 00ppmxreading 0 4ns 8 bits resolution 2 Channels A D converter simultaneously gt miVidiv 10Vidiv at BNC t1V 2mV 50mV 10V 100mV Displacement 1V t100V 2V 10V l 100MHz PDS8102T Analog bandwidth 200MHz PDS8202T Single bandwidth Full bandwidth Vertical system Low Frequency gt 5Hz at input AC coupling 3dB lt 3 5 ns at input Typical PDS8102T Rise time lt 1 75 ns at input Typical PDS8202T Average gt 16 3 rdg 0 05 div for AV DC accuracy average 78 __User Manual of OWON Digital Storage Oscilloscope eee Vpp Vmax Vmin Vtop Vbase Vamp Vavg Vrms Overshoot Preshoot Freq Automatic Period Rise Time Fall Time DelayA B DelayA Bt Width Wid
52. on coefficient press the function menu button of the channels used then push down the selection button corresponding to the probe till the correct set value 1s shown This setting will be valid all the time before it is changed again PAN Note The attenuation coefficient of the probe in the menu is preset to 10X when the oscilloscope is delivered from the factory Make sure that the set value of the attenuation switch in the probe is the same as the menu selection of the probe in the oscilloscope The set values of the probe switch are 1X and 10X see Fig 4 7 User Manual of OWON Digital Storage Oscilloscope Fig 4 7 Attenuation Switch Z Note When the attenuation switch is set to 1X the probe will limit the bandwidth of the oscilloscope in S5MHz If it is needed to use the whole bandwidth of the oscilloscope the switch must be set to 10X How to Use the Probe Safely The safety guard ring around the probe body protects your finger against the electric shock shown as Fig 4 8 a NOe ti if Fig 4 8 Finger Guard PAN Warning In order to avoid suffering from the electric shock please keep your finger behind the safety guard ring of the probe body during the operation In order to protect you from suffering from the electric shock during your using the probe do not touch the metal part of the probe tip when the probe is connected to the power supply Before making any measurements please connect t
53. on steps are as follows 1 Press the MATH MENU button and call out the WAVE MATH menu 2 Press the F5 selection button to turn to Page2 Press F3 to choose FFT 3 Press F1 to turn on off FFT after entering FFT menu and please note that FFT is prohibited in Window setting mode The green waveform F is shown in the screen after calculation 4 Press F2 selection button to switch over source channel CH1 and CH2 5 Press F3 button to select WINDOW including Rectangle Hamming Hanning and Blackman 6 Press F4 to choose the Format as dB or Vrms 7 Press F5 to zoom in or out the wave of the multiple including 1 2 5 10 8 Adjust the Horizontal knob in horizontal control zone to move the waveform and the shown frequency of M Pos is the exact frequency of the cursor point in the middle of spectrum 9 Turn off FFT and then press math menu button to go back to the second page of wave math Selecting an FFT Window 2 User Manual of OWON Digital Storage Oscilloscope m 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 This is the best type of window for resolving frequencies that are very close to the same value but worst for accurately measuring the amplitude of those frequencies It is
54. optimized based on which you can further regulate the vertical and horizontal divisions till the waveform meets your requirement 2 Perform Automatic Measurement The oscilloscope can measure most displayed signals automatically Complete the following operations for the measurement of frequency cycle mean and peak to peak value 1 Press the MEASURE button to show the automatic measurement function menu 2 Press the Fl menu selection button and choose Source with the Source menu displayed 3 Press the F2 F3 F4 and F5 menu selection buttons and choose CH1 4 Press the F1 menu selection button again and choose Type with the Type menu displayed Press the F2 menu selection button and choose Freq Press the F3 menu selection button and choose Period Press the F4 menu selection button and choose Mean oS see Press the F5 menu selection button and choose Pk Pk Then the frequency cycle mean and peak to peak value will present in the menu and change periodically see Fig 6 1 68 User Manual of OWON Digital Storage Oscilloscope Fig 6 1 Waveform of Automation Measurement Example 2 Gain of the Amplifier in the Metering Circuit Set the probe menu attenuation coefficient as 10X and that of the switch in the probe as 10X Connect the oscilloscope CH1 channel with the circuit signal input end and the CH2 channel to the output end Operation Steps l oT OA r eA e a Push down the AUTOSET button
55. ound that the trigger indicator in the screen will move up and down with the rotation of the knob With the movement of the trigger indicator 1t can be observed that the trigger level value displayed in the screen changes 3 Press the button SET 50 to set the trigger level as the vertical mid point values of the amplitude of the trigger signal 4 Press the FORCE TRIG button to force a trigger signal which is mainly applied to the Normal and Single trigger modes 5 The SET TO ZERO button is used to reset the trigger horizontal position 18 User Manual of OWON Digital Storage Oscilloscope 5 Advanced User Guidebook Up till now you have already been familiar with the initial operations of the functions of the function areas buttons and knobs in the front panel of the PDS series oscilloscope Based the introduction of the previous Chapter the user should have an intimate knowledge of the determination of the change of the oscilloscope setting through observing the status bar If you have not been familiar with the above mentioned operations and methods yet we advise you to read the section of Chapter One Junior Users Guidebook This chapter will deal with the following topics mainly How to Set the Vertical System How to Set the Horizontal System How to Set the Trigger System How to Implement the Sampling Setup How to Set the Display System How to Save and Recall Wave Form How to I
56. perty Safety Symbols Symbols on the product The following symbol may appear on the products A 7 High Voltage Please Consult the Manual Protective Ground End Earth End on the Shell Grounding End for Measurement User Manual of OWON Digital Storage Oscilloscope To avoid body damage and prevent product and connected equipment dam This product can only be used in the specified applications Carefully read the following safety information before using the test tool A Warning When use BC battery charge as power supply to avoid fire or electrical shock if a test tool input is connected to more 42V peak 30Vrms or on circuits of more than 4800 VA Only use accessory insulated voltage probes test lead Before use inspect oscilloscope probes accessories for mechanical damage and replace when damage Remove all probes test leads and accessories that are not in use Remove computer data line Do not apply input voltages above the rating of the instrument Use caution when using 1 1 test leads because the probe tip voltage will be directly transmitted to the oscilloscope Do not use exposed metal BNC or banana plug connectors Do not insert metal objects into connectors User Manual of OWON Digital Storage Oscilloscope 3 General Characteristics of the PDS Series Oscilloscope Digital Storage Oscilloscope Model Bandwidth Sample Rate PDS8102T 100MHz 1GS s half channel SOOMS s each channel PDS8202T 200M
57. r source Hl pulse width less than F gt L pulse width more than F Pulse width equal to Pulse width less than 24 Pulse width more than Pulse width equal to To select pulse width condition AC Not allow DC portion to pass DC Allow all portion pass Couplin HF Not allow high frequency of signal pass pas and only low frequency portion pass LF Not allow low frequency of signal pass and only high frequency portion pass Holdoff 100ns 10s Turn TRIG Pee knob to set time slot before another trigger event Reset 43 User Manual of OWON Digital Storage Oscilloscope Alternate trigger Trigger Mode Slope Alternate trigger Trigger Type Slope Menu is shown as Fig 5 26 Fig 5 26 Alternate trigger Trigger Type Slope Menu Alternate trigger Trigger Type Slope menu list MENU SETTING source S Select CH1 as the trigger source Source CH2 Select CH2 as the trigger source Mode sioe SOS Rising Edge and more than Rising Edge and less than Slope Rising Edge and equal to Condition Falling Edge and more than Negative pulse and less than Negative pulse and equal to BEE Turn TRIG LEVEL knob to set slope time Highlevel Turn TRIG LEVEL knob to set the High level Turn TRIG LEVEL knob to set Low level Slew rate High level Low level Settings AC Not allow DC portion to pass DC Allow all portion pass ie HF Not allow high frequency of signal pass and on
58. requency of signal pass and only low frequency portion pass LF Not allow low frequency of signal pass and only high frequency portion pass Holdoff 100ns 10s Turn TRIG LEVEL knob to set time slot before another trigger event oe oe Reset hold time to 100ns Reset 41 User Manual of OWON Digital Storage Oscilloscope Alternate trigger Trigger Mode video Alternate trigger Trigger Type video Menu is shown as Fig 5 24 Fig 5 24 Alternate trigger Trigger Type video Menu Alternate trigger Trigger Type video Menu list Select CH1 as the trigger source Select CH2 as the trigger source Source Ext trigger Ext trigger divide to 5 to extend trigger level range Line Synchronic trigger in video line Field Synchronic trigger in video field Odd Field Synchronic trigger in video odd filed EvenField Synchronic trigger in video even field Designed Line Synchronic trigger in designed video line NTSC l l PAL SECAM Video modulation setting Holdoff 100ns 10s Turn oor LEVEL knob to set time slot before another trigger event eons aa Reset hold time to 100ns Reset 42 User Manual of OWON Digital Storage Oscilloscope Alternate trigger Trigger Mode Pulse Alternate trigger Trigger Type Pulse Menu is shown as Fig 5 25 Fig 5 25 Alternate trigger Trigger Type Pulse Menu Alternate trigger Trigger Type Pulse menu list MENU SETTING INSTRUCTION CH1 Select CH1 as the trigger source CH2 Select CH2 as the trigge
59. se in the oscilloscope display please operate the instrument according to the following step 1 Press the ACQUIRE button to show the ACQU MODE menu 2 Press the F3 menu selection button and choose Average 3 Press the F4 menu selection button and observe the wave form obtained from averaging the wave forms 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 rising and falling edges appear see Fig 6 5 72 User Manual of OWON Digital Storage Oscilloscope Fig 6 5 Wave Form of the Noise Removed Signal Example 5 Application of X Y Function Examine the Phase Difference between Signals of two Channels Example Test the phase change of the signal after it passes through a circuit network Connect the oscilloscope with the circuit and monitor the input and output signals of the circuit For the examination of the input and output of the circuit in the form of X Y coordinate graph please operate according to the following steps l Set the probe menu attenuation coefficient for 10X and that of the switch in the probe for 10X Connect the probe of channel 1 to the input of the network and that of Channel 2 to the output of the network Push down the AUTOSET button with the oscilloscope turning on the signals of the two channels and displaying them 1n the screen Adjust the
60. shown as Fig 5 45 59 User Manual of OWON Digital Storage Oscilloscope Fig 5 45 CURS MEAS Menu The description of the cursor measurement menu is shown as the following table Setting OFF Switch off the cursor measurement Voltage Display the voltage measurement cursor and menu Time Display the time measurement cursor and menu Comde CH1 Display the channel generating the waveform to CH2 which the cursor measurement will be applied Delta Read the difference between cursors Read the position of Cursor 1 the Freq is read Cursor 1 with reference to the horizontal trigger position and the Vamp is to the ground point Read the position of Cursor 2 the Freq is read Cursor 2 with reference to the horizontal trigger position and the Vamp is to the ground point When carrying out the cursor measurement the position of Cursor 1 can be adjusted with the CURSORI VERTICAL POSITION knob of Channel 1 and that of Cursor 2 can be adjusted with the CURSOR2 VERTICAL POSITION knob of Channel 2 Perform the following operation steps for the voltage cursor measurement of the channel CH1 1 Press CURSOR and recall the CURS MEAS menu 2 Press the F1 menu selection button to choose Voltage for Type with two purple dotted lines displayed along the horizontal direction of the screen which 60 User Manual of OWON Digital Storage Oscilloscope indicating CURSORI1 and CURSOR2 Press the F2 menu selection button and c
61. svasscccssiecessscasecteacousensasascussssensss 32 FLOW CO SCUUHIGSEN SY SCOT eiciia a ae aaa Ee EA 36 Sele ML aE orra EOE ER EET S 36 AHtermnmate OEE onn A E S EE E E 4 How to Operate the Function Menu ssssscscccccssssssssssscccssccsssssssccossccesssssssccsssssesesssess 46 How to Implement Sampling Set a a aaia i Ea 46 Howto SCLIMe DI pPay Sy Ste Mi ann a a a a 48 How to Save and Recalla Wave FOMM nanena a a a a 53 How to Implement the Auxiliary System Function Setting cccccccsssssssssssssssssssssssssssssssssssssssseeeeeas 55 How to Implement the Automatic Measurement ccccssssssssssseessssssssssssssssssssssssssssssssssesssseesaagaas 57 How to Implement the Cursor Measurement oseanen tione EEE eE EE R 59 TOW Oe Anos dea nS a Nh 64 HOw to Usc Exccutive Buton arena T A TAE ed 66 User Manual of OWON Digital Storage Oscilloscope O DCINONSUQUON sensen a E E 68 Example 1 Measurement of Simple Signals sseeccoossssssecccccsssssecesocsssesceccoossssssecsossssseseeesoo 68 Example 2 Gain of the Amplifier in the Metering Circuit eeeoooooossssssessccccsesecoosssssssses 69 Example 3 Capture the Single Sinaloi iaaa aaa aenean eaaa P aaa 70 Example 4 Analyze the Details of a Signal ccccccssssssssscccccsssssssscscccscseesssssccccssssseessssecs 72 Example 5 Application of X Y Function cccccccsssssssssssccccccccsssssccccccsscessssscscccsssseesssecs 73 Example 6 V
62. t trigger level to OV 2 Trigger Mode The trigger mode determines how the oscilloscope behaves in the absence of a trigger event The oscilloscope provides three trigger modes Auto Normal and Single Auto This sweep mode allows the oscilloscope to acquire waveforms even when it does not detect a trigger condition If no trigger condition occurs while the oscilloscope is waiting for a specific period as determined by the time base setting it will force itself to trigger 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 RUN STOP key the oscilloscope waits for trigger While the trigger occurs the oscilloscope acquires one waveform then stop Single In Single mode after pressing the RUN STOP key the oscilloscope waits for trigger While the trigger occurs the oscilloscope acquires one waveform then stop 3 Coupling Trigger coupling determines what part of the signal passes to the trigger circuit Coupling types include AC DC LF Reject and HF Reject AC AC coupling blocks DC components DC DC coupling passes both AC and DC components LF Reject LF Reject coupling blocks DC component and attenuates all signal with a frequency lower than 8 kHz HF Reject HF Reject coupling attenuates all signals with
63. ter the XY display format is selected Channel 1 is displayed in the horizontal axis and Channel 2 in the vertical axis the oscilloscope is set in the un triggered sample mode the data are displayed as bright spots and the sampling rate is 1MS s and can not be changed The operations of all control knobs are as follows E The Vertical VOLTS DIV and the Vertical POSITION knobs of Channel lare used to set the horizontal scale and position E 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 M Reference or digital wave form E Cursor E Time base control E Trigger control Operation steps 1 Press the DISPLAY button and call out the Display Set Menu 2 Press the F3 menu selection button and choose the form as XY The display format is changed to be XY mode see Fig 5 35 Fig 5 35 XY Display Mode At the mode of FFT if switching YT to XY FFT MODE is unavailable prompts as 51 User Manual of OWON Digital Storage Oscilloscope Fig 5 36 M Pos 12 50KHz Fig 5 36 FFT mode XY Format Disable 52 User Manual of OWON Digital Storage Oscilloscope How to Save and Recall a Wave Form Press the SAVE RCL button you can save and call out the waveforms in the instrument The menu displayed in the screen is shown as Fig 5 37 Fig 5 37 Wave Form Save Menu The description of the Wave
64. th Duty Duty Waveform Waveform storage 3 acm Bandwidth Full bandwidth Lissajou s figure ee 3 degrees 7 difference Frequency typical IKHz square wave USB1 1 or RS 232 USB for file storage Half channel is when only one input channel is available 6 div from the screen center Trigger level range 600mV Trigger level 40mV 6 of Set Value Accuracy typical EXT 5 200mV 6 of Set Value Tri dis pane Pre trigger 655 div Post trigger 4 div Trigger Trigger Holdoff 100ns 10s range 50 level Input signal frequency gt S50Hz setting typical slope Rising Falling ies slope Sensitivity T Positive pulse gt lt Trigger condition negative pulse gt lt s Pulse trigger Pulse Width 24ns 10s range i TSC PAL and SECAM GoT Support standard NTSC and SEC broadcast systems 79 User Manual of OWON Digital Storage Oscilloscope 1 525 NTSC and 1 625 PAL SECAM 7 Positive pulse gt lt Trigger condition p Slope Trigger negative pulse gt lt 24ns 10s l Trigger on CH1 Edge Pulse Video Slope Alternate Trigger Trigger on CH2 Edge Pulse Video Slope 80 User Manual of OWON Digital Storage Oscilloscope General Technical Specifications Display Display Type 8 Colored LCD Liquid Crystal Display Display Resolution 640 Horizontal x 480 Vertical Pixels Display Colors 65536 colors TFT screen Output of the Probe Compens
65. th the AUTOSET button pressed the setting above can be completed automatically After the AVERAGE value sampling is set in the ACQU MODE or the longer duration is set in the DISP MODE the display rate is slowed down It is a normal phenomenon 76 User Manual of OWON Digital Storage Oscilloscope 8 Technical Specifications Unless otherwise specified the technical specifications applied are applicable to the probe with the attenuation switch setting 10X and the PDS series digital oscilloscope Only if the oscilloscope fulfill the following two conditions at first can these specification standards be reached E This instrument should run for more than 30 minutes continuously under the specified operating temperature m Ifthe change range of the operating temperature is up to or exceeds 5 C open the system function menu and execute the Auto calibration procedure All specification standards can be fulfilled except one s marked with the word Typical 100MHz PDS8102T Bandwidth 200MHz PDS8202T 2 1 External Normal Peak detect Averaging 1GS s half channel SOOMS s each Acquisition Sanaple rate channel PDS8102T 2GS s_ half channel 1GS s_ each channel PDS8202T Input coupling DC AC Ground Input impedance IMQ 2 in parallel with 15pF 5pF Max input voltage 400V PK PK DC AC PK PK Input aa Bandwidth limit 20MHz 100MHz f f 50Hz 100 1 Channel isolati
66. the best type for measuring the frequency spectrum of nonrepetitive signals and measuring frequency components near DC Use rectangle for measuring transients or bursts where the signal level before and after the event are nearly equal Also use this window for equal amplitude sine waves with frequencies that are very close and for broadband random noise with a relatively slow varying spectrum This is a very good window for resolving frequencies that are very close to the same value with somewhat improved amplitude accuracy over the rectangle window It has a slightly better frequency resolution than the Hanning Use Hamming for measuring 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 This is a very good window for measuring amplitude accuracy but less so for resolving frequencies Use Hanning for measuring 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 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 gt Fig 5 9 5 10 5 11 5 12 show four kinds of window function referring to sine wave of 28 User Manual of OWON Di
67. the channel is under the DC coupling mode you can rapidly measure the DC component of the signal through the observation of the difference between the wave form and the signal ground If the channel is under the AC mode the DC component will be removed by filtration This mode helps you display the AC component of the signal with a higher sensitivity 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 Rotate the vertical VOLTS DIV knob and change the Vertical Scale Factor Voltage Division it can be found that the scale factor of the channel corresponding to the status bar has been changed accordingly Press buttons of CH1 MENU CH2 MENU and MATH MENU the 16 User Manual of OWON Digital Storage Oscilloscope operation menu symbols wave forms and scale factor status information of the corresponding channel will be displayed in the screen Introduction to the Horizontal System Shown as Fig 4 10 there are a button and two knobs in the HORIZONTAL CONTROLS The following practices will gradually direct you to be familiar with the setting of horizontal time base Fig 4 10 Horizontal Control Zone 1 Use the horizontal SEC DIV knob to change the horizontal time base setting and observe the conseq
68. u CH 50 0myu M 500us CH 26 0my CH1 999 9241Hz Fig 5 28 Peak Detect mode under which the burrs on the falling edge of the square wave can be detected and the noise is heavy OWON Cirig beers Pos 0 000ns ACQU MODE Peak Detect Average Averages 16 CH1 Su CH2 20 0myu M 500us _ CHI 0 00my CH1 999 946Hz Fig 5 29 Common ACQU Mode display in which no burr can be detected 47 User Manual of OWON Digital Storage Oscilloscope Fig 5 30 The displayed wave form 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 31 Fig 5 31 Display Set Menu The description of the Display Set Menu is shown as follows 48 User Manual of OWON Digital Storage Oscilloscope Setting Vectors The space between the adjacent sampling points 1 the display is filled with the vector form Dots Only the sampling points are displayed OFF lsec Persist 2sec Set the persistence time for each sampling point Ssec Infinite YT Show the relative relation between the vertical voltage and the horizontal time Format oo XY Channel 1 is displayed on the horizontal axis and Channel 2 on the vertical axis FFT mode disable Bitmap The data transmitted in communication are in the bitmap form Vectors The data transmitted in communication are in the vector form
69. uent status information change Rotate the horizontal SEC DIV knob to change the horizontal time base and it can be found that the Horizontal Time Base display in the status bar changes accordingly The horizontal scanning speed steps from 2 ns up to 100s in the sequence of 1 2 5 PDS8102T 1 ns up to 100s in the sequence of 1 2 5 PDS8202T 2 Use the HORIZONTAL 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 wave form moves horizontally with the knob when you rotate the Horizontal Position knob 3 With the HORIZONTAL MENU button pushed down you can set and initiate the Window Expansion User Manual of OWON Digital Storage Oscilloscope Introduction to the Trigger System Shown as Fig 4 11 there are a knob and four buttons in the TRIGGER CONTROLS The following practices will direct you to be familiar with the setting of the trigger system gradually Fig 4 11 Trigger Control Zone l Press the TRIG MENU button and call out the trigger menu With the operations of the 5 menu selection buttons the trigger setting can be changed 2 Use the LEVEL knob to change the trigger level setting With the rotation of the LEVEL knob it can f
70. uring channel 1X Choose one according to the probe attenuation factor to make the vertical scale reading accurate The wave form is displayed normally Initiate the wave form inverted function 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 F1 menu selection button and select the Coupling item as AC to set the channel coupling as ac mode under which the direct current component in the signal will be blocked Then press the F1 menu selection button again and select the Coupling item as DC setting the channel coupling as dc mode under which both dc and ac components in the signal will be unblocked The wave forms are shown as Fig 5 2 and Fig 5 3 21 User Manual of OWON Digital Storage Oscilloscope OWON Trig d Baan M Pos 0 000ns CH1 SETUP 7 e Coupling E See E a E a a E a sess Band Limit l F 7 3 OFF 1OOMHz Channel Se ee ee re ee re ON heed Probe Car ere ROUSE E ote gh ih abet ME OTe AA Cp Oe nog of eck Ran aE ES CA 10 X ETE T ee E eee ee ee ee ee Inverted OFF CHi Zu CHZ 20 0mu M 500us CHi 0 00mu CH1 1 00000kKHz Fig 5 2 AC Coupling Oscillogram OWON Irig d Paan M Pos 0 000ns CH1 SETUP ee Coupling seji syss eete beee lecss lease Band Limit OFF 1O0MHz
71. v Ra EVROPSK UNIE OPPA European Social Fund Prague amp EU We invest in your future OWON PDS Series Portable Digital Storage Oscilloscope User Manual ePDS8102T ePDS8202T WWW OWON COM CN Dec 2010 edition Copy Right in this Manual Lilliput Company All rights have been reserved The Lilliput s products are under the protection of the patent rights in America and other countries including ones which have already obtained the patent rights and those which are applying for The information in this manual will replace all that in the materials published originally The information in this manual was correct at the time 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 cn Fujian Lilliput Optoelectronics Technology Co Ltd The mansion of optoelectronics hengsan road Lantian industrial zone Zhangzhou Fujian China Tel 86 596 2130430 Fax 86 596 2109272 Web www owonchina com Mail service owonchina com User Manual of OWON Digital Storage Oscilloscope General Warranty The Lilliput warrants that the product will be free from defects in materials an
72. ween Vtop and Vbase of a waveform Vtop Voltage of the waveform s flat top useful for square 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 Rise Time Time that the leading edge of the first pulse in the waveform takes to rise from 10 to 90 of its amplitude Fall Time Time that the falling edge of the first pulse in the waveform takes to fall from 90 to 10 of its amplitude Width The width of the first positive pulse in 50 amplitude points Width The width of the first negative pulse in the 50 amplitude points Delay 1 2 The delay between the two channels at the rising edge Delay 1 2 t The delay between the two channels at the falling edge 57 User Manual of OWON Digital Storage Oscilloscope Duty Duty Cycle defined as Width Period Duty Duty Cycle defined as Width Period Press the F1 menu selection button to choose Source or Type menu You can choose the channel to be measured from the Source menu and choose the measurement Type Freq Period Mean PK PK and Cyc RMS The menu is displayed as Fig 5 43 Fig 5 43 Measure Menu Measure Four automatic measured values can
73. xpanded to the full screen Main Time Base Press the F1 menu selection button and choose the Main Time Base 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 15 33 User Manual of OWON Digital Storage Oscilloscope OWON Girisa parret Pos 0 0008 TIME MODE CH1 20y CHZ 20 0my M 5 0us gt 7 CH1 800mu CH1 99 9623KHz Fig 5 15 Main Time Base Set Window Press the F2 menu selection button and choose Set Window The screen will show a window area defined by two cursors In this case the HORIZONTAL POSITION and SEC DIV knobs can be used to adjust the horizontal position and size of this window area Press F2 menu button under the FFT mode it will notice FFT mode disable see Fig 5 16 OWON Cirig baana I Pos 0 000ns k Window gt Zone Window CH1 26u CH2 20 0nu M 5 0us U 500ns 7 CH1 800mu CH1 99 9782KHz Fig 5 16 Window Setting 34 User Manual of OWON Digital Storage Oscilloscope OWON been annann M Pos 62 50KHz TIME MODE Main TimeBase Window fone Window CH1 1v CH2 1v 12 5KHz DI 500K572 CH1 0 00mu CH1 11 1454KHz FFT MODE DISABLED Fig 5 17 Set Window isable under FFT mode Window Expansion Press the F3 menu selection button and choose Zone Window As a result the window area defined by two cursors will be expa

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