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PDS Series User Manual

1. 36 User Manual of PDS Series Oscilloscope Fig 33 Video Trigger Menu The description of the Video Trigger menu is shown the following table Function Settin Description Menu j P Channel 1 as the trigger source Channel 2 as the trigger source Source Use external source 1 5 of the External Trigger Source for increasing range of level Line Trigger the time base on the line of input video signal Field Trigger the time base on the field of input video signal Odd field Trigger the odd fields of input video signal Even field Trigger the even fields of input video signal Designed Line Trigger the time base on chosen line of input video signal NTSC PAL SECAM Format of video signal E EE Ea o HoldOff 100ns 10s Set interval by using TRIG LEVEL control value range from 100ns tol 0s HoldOff Reset hold time to default value 100ns Reset Set up a Video Trigger Apply NTSC video to CH1 1 Press the TRIG MENU to activate TRIG MODE 2 Press F1 next to Type to select Video for the trigger type 3I User Manual of PDS Series Oscilloscope 3 Press the F2 to choose CH1 for trigger source 4 Press F3 next to Sync and select Field The screen display is shown as Fig 34 Fig 34 Video Trigger Sync mode Field Term interpretation Trigger modes There are three kinds of trigger modes available for this oscilloscope which is auto normal and single Automatic trigger mode The oscilloscope can acq
2. 52 User Manual of PDS Series Oscilloscope Use Executive controls These controls include AUTOSET RUN STOP AUTOSET It s a very useful and quick way to apply a set of pre set functions to the incoming signal and display the best possible viewing waveform of the signal and also works out some measurement for user as well The following table gives the details of functions applied to the signal when using AUTOSET Function Items Setting RUN STOP Enable or disable sampling on input signals Notes When there is no sampling at STOP state user is still able to change vertical division or time base for waveform within a certain range If the time base is lt 50ms the time base can be adjusted 4 divisions downwards 53 User Manual of PDS Series Oscilloscope Quick Start Guide Example 1 Measuring a Simple Signal The purpose of this example is to measure the frequency and peak to peak value of a given signal Step1 Go to CH1 menu and Probe menu to set attenuation coefficient as 10X turn the switch on the Probe to 10X as well Step 2 Connect the Probe through Channel to the signal source Step 3 Press AUTOSET button to let oscilloscope run through a pre set functions and apply them to incoming signal Step 4 Take the measurements by going through these settings 1 Press MEASURE to activate measurement function menu Press F1 next to Source to highlight Source Press F2 F3 F4 and F5 one by one
3. Fig 9 Attenuation Switch PAN 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 User Manual of PDS Series Oscilloscope To use the Probe Safely The safety guard ring around the probe body protects your finger against the electric shock shown as Fig 10 Fig 10 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 the probe to the instrument and connect the ground terminal to the earth To perform Self calibration The self 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 UTILITY button to call out the FUNCTION menu push down the F3 menu selectio
4. MEAS on the screen there are two types of cursors Voltage and Time CURS MEAS Fig 51 CURS MEAS Menu The description of the cursor measurement menu is shown as the following table Setting OFF The cursor is off no measurement taking Voltage Turn on horizontal cursors and display their voltage value Time Turn on vertical cursors and display their time value 49 User Manual of PDS Series Oscilloscope CH1 CH2 Source signal for cursor measurement Delta Absolution value of the difference between two cursors Read the position of Cursor the Time 1s read with Cursor 1 reference to the horizontal trigger position and the Voltage is to the ground point Read the position of Cursor 1 the Time is read with Cursor 2 reference to the horizontal trigger position and the Voltage is to the ground point You can adjust the positions of Cursors by using POSITION controls marked with CURSOR 1 and CURSOR 2 Now we take you through two examples to set up and use cursors for Voltage and Time measurements respectively An input signal of waveform is used throughout this example Voltage Cursor measurement Press CURSOR to activate CURS MEAS menu Press F1 to select Voltage and Type there are two purple horizontal lines appeared on the screen representing CURSOR 1 on the top and CURSOR2 on the bottom Press F2 to select CH1 as the Source The results are shown on the screen see Fig 52 OWON OWO
5. 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 operation menu symbols wave forms and scale factor status information of the corresponding channel will be displayed in the screen 19 User Manual of PDS Series Oscilloscope Introduction to the Horizontal System Shown as Fig 12 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 POSTE Fig 12 Horizontal Control Zone 1 Use the horizontal SEC DIV knob to change the horizontal time base setting and observe the consequent 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 Sns up to 100s according to the stepping mode of 1 2 5 5 PDS5022S T 1 2 5 PDS6042S PDS6062S 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 di
6. Edge Adjustable 0 2div 1 0div trigger Coupling DC AC LF Rjc HF Rje Trigger 6 div from the screen center 63 User Manual of PDS Series Oscilloscope Measurement kapeaa kapeaa level 40mV 6 of Set Value Accuracy EXT 5 200mV 6 of Set Value typical Pre trigger 655 div Post trigger 4 div Video trigger EXT 5 2V typical Horizontal Trigger displacement NTSC PAL SECAM any Signal system frequency Alternate CH1 trigger Edge Video trigger CH2 trigger Edge Video Peak to peak value average value root mean square value frequency period Vmax Vmin Automatic Vtop Vbase Vamp Overshoot Preshoot RiseTime Fall Time Width Width Duty Duty DelayA B and DelayA Bt Waveform Math Invert FFT Lissajou s Bandwidth Full bandwidth USB1 1 or RS 232 64 User Manual of PDS Series Oscilloscope General Specifications Display Model PDS5022S PDS6042S PDS6062S PDS5022T Display Type 7 5 color liquid crystal display color liquid crystal display Display Color 256 colors 65536 colors TFT screen Display Resolution 640 horizontal x 480 vertical pixels Probe compensation Output voltage typical 5V with the Peak to peak value gt 1MQ Frequency typical 1KHz square wave Power Supply 100 240 VACRMS 50 60Hz CAT II Environment Gane Working temperature 0 C 40 C p Storage temperature 20 C 60 C Hecht O
7. Press F2 Mode to select Horizontal Vertical 4 Press F3 to choose AAVAT and press F3 to change tok f See Fig 54 55 for details BIHORI VERT OM oe A a HORI VERT Fig 54 Multi cycles mode Fig 55 single cycle mode Note Things you should be ware when turning on Autoscale 1 The symbol is flickering on the top left corner of screen every half second 2 The oscilloscope is setting Triggers automatically for the incoming signal based on its best approach Access from front panel to trigger controls is disabled A warning message will be displayed on the bottom left corner of the screen when trying to change submenus of Trigger controls 3 If the display mode is in XY and STOP is turned on pressing AUTO SET to enter into Autoscale The oscilloscope will be set to YT mode and ATUO triggering 4 Oscilloscope is set as DC coupling with AUTO Triggering A warning message is displayed when trying to change these settings 5 The oscilloscope will turn off Autoscale if user is trying to adjust vertical position voltage division trigger level or time scale for CH1 or CH2 To back to Autoscale Press AUTOSET 6 The oscilloscope is always on main time base 7 The oscilloscope 1s turned into Peak Detection mode if it is in Average mode 8 When video triggering the horizontal time scale is 50us If one channel 1s showing edge signal the other channel is showing video one the time scale refers to 50us as video one as standard
8. Series Oscilloscope MEASURI MEASURI Fig 49 Measure Menu Term interpretation Peak to Peak Voltage The maximum amplitude The most positive peak voltage measured over the entire waveform Vmi The minimum amplitude The most negative peak voltage measured over min i the entire waveform Voltage between Vtop and Vbase of a waveform Voltage of the waveform s flat top useful for square pulse waveforms Voltage of the waveform s flat base useful for square pulse waveforms Defined as Vmax Vtop Vamp useful for square and pulse waveforms Defined as Vmin Vbase Vamp useful for square and pulse waveforms The arithmetic mean over the entire waveform 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 47 User Manual of PDS Series Oscilloscope The width of the first negative pulse in the 50 amplitude points Delay 1 24 The delay between the two channels at the rising edge Delay 1 2 The delay between the two channels at the falling edge Duty Cycle defined as Width Period Duty Cycle defined as Width Period We now take you through an example to use Automatic measureme
9. TIME BASE MAIN TIME BASE MAIN SCALE 500us WINDOW SCALE 25 us MAIN POSITION 0 000ns WINDOW POSITION Os DISPLAY FORMAT YT ACQUIRE MODE SAMPLE CH1 0 00mu Fig 48 Horizontal System State To perform the Automatic Measurement This is where users would come across every time they use our scopes It is take the measurements by using oscilloscope Our oscilloscope does this automatic every time user press Measure button It is capable to work out 20 different types of measurements and there are 4 measurements can be displayed on the screen at one tme The 20 types automatic measurements include frequency cycle average value peak to peak value root mean square value Vmax Vmin Vtop Vbase Vamp Overshoot Preshoot RiseTime Fall Time Width Width Duty Duty DelayA B and DelayA Bt To use Measure simply Press Measure button would activate MEASURE menu Press F1 next to Source Type to allow you to switch between Source and Type Source is the signal from the channel which user to carry out a measurement and Type is one of the 20 measurements user wants Oscilloscope to work out Under the Type as you can see in Fig 57 is what the actual measurement reading is The reading would show sign of if there isn t a measurement can be worked out from the source signal As in Fig 57 both Channell and Channel2 are chosen as source measurements are taken for Frequency Pk Pk value Mean and RMS 46 User Manual of PDS
10. When the oscilloscope begins to collect the data and display the wave form depends on a trigger Once it is set correctly the trigger can transfer the unstable display into a meaningful wave form When beginning to collect data the oscilloscope will collect adequate data to draw the wave form at the left side of the trigger point at first It will continuously perform the data acquisition while waiting for the trigger condition After a trigger is detected the oscilloscope will continuously collect data enough to draw the wave form at the right side of the trigger point One knob and four function menu buttons are included in the trigger control zone TRIG LEVEL Trigger the level control knob and set the signal voltage corresponding to the trigger point SET TO 50 Set the trigger level as the vertical mid point value of the amplitude of the trigger signal FORCE TRIG It is a force trigger button for the generation of a trigger signal which is mainly used in the Normal and Single triggering modes SET TO ZERO Trigger the resetting of the horizontal position TRIG MENU It is a trigger menu button When it is pressed an operation menu will be presented in the screen 33 User Manual of PDS Series Oscilloscope Trigger Control Trigger Control There are two trigger modes Edge Trigger and Video Trigger Each trigger mode has its function menu for users to set them up Press Trigger Menu to active your trigger sett
11. 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 User Manual of PDS Series Oscilloscope PSS Fig 1 The Front Panel of a PDS series Oscilloscope Function Buttons Sey PEL HedPE Fuh TOF L Po SmE H E 5 T 5 ed i i L TAG HE L Adjustment Vertical Control Connector Horizontal Trigger Menu Selection Control Control Fig 2 Explanatory Drawing for Operations of the PDS series Oscilloscope User Manual of PDS Series Oscilloscope l 1 4 3 4 5 6 al 19 Lesh 17 lopo he i ae 10 9 Fig 3 Illustrative Drawing of Display Interfaces The Trigger State indicates the following 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 tri
12. 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 F4 menu selection button and select ON in the Inverted The wave form inverted function is initiated 3 Press the F4 menu selection button again and select OFF for Inverted item The function of wave form inverted is closed off For the screen display see Fig 18 and Fig 19 OWON A Pos Fig 18 Original Wave Form Fig 19 Inverted Wave Form 25 User Manual of PDS Series Oscilloscope Perform Mathematical Manipulation Function The Mathematical Manipulation function is used to show the results of the additive and subtraction operations between Channel and Channel 2 and the FFT operation of CH1 or CH2 Taking the additive operation between Channel 1 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 1s closed off see Fig 20 OWON TN Pos 0 000ns WAVE MATH s CH1 80 0nu Fig 20 Wave Form resulted from CH1 CH2 Mathematical Manipulation The corresponding FCL Functional Capabilities List of the Wave Form Calculation Setting CH1 CH2 Subtract the Ch
13. to set them to CHI Press F1 again and highlight Type Press F3 and set to Period 2 3 4 5 Press F2 and set to Freq 6 7 Press F4 and set to Mean 8 Press F5 and set to Pk Pk Now you have your measurement results displayed in Fig 56 54 User Manual of PDS Series Oscilloscope MEASURI Fig 56 Measurement Frequency and PK PK value for a given signal Example 2 Working out the Gain of the Amplifier in the Metering Circuit The purpose of this example is to work out the Gain of an Amplifier in a Metering Circuit First we use Oscilloscope to measure the amplitude of input signal and output signal from the circuit then to work out the Gain by using given formulas Step1 Go to both CH1 menu and CH2 menu and then their Probe menu to set attenuation coefficient as 10X turn the switch on the Probe to 10X as well Step 2 Connect the Probe through Channel 1 to the signal source the input signal in the circuit And Probe 2 through Channel 2 to its signal source the output signal in the circuit Step 3 Press AUTOSET button to let oscilloscope run through a pre set function and apply them to both signals coming into Channell and Channel 2 Step 4 1 Press MEASURE to activate measurement function menu Press F1 next to Source to highlight Source Press F2 to set Source as CH1 2 3 4 Press F3 to set Source as CH2 5 Press F1 to highlight Type 6 Press F2 to set Pk Pk 55 User Manual of PDS Serie
14. 20pF 5pF Input Probe attenuation 1X 10X 100X 1000X factor Max input voltage 300V PK PK DC AC PK PK e 10S s LOOMS s PDS5022S T Horizontal Syster Sampling rate e 1 0S s 250M5 s PDS6042S PDS6062S 5K points on each channel PDS5022S T Record length 6K points on each channel PDS6042S PDS6062S 5ns div 100s div Scanning speed estep by 1 2 5 5 PDS5022S T S div estep by 1 2 5 PDS6042S PDS6062S 62 User Manual of PDS Series Oscilloscope Sampling rate relay 100ppm time accuracy Single 1 interval Interval CAT time 100ppm xreading 0 6ns accuracy DC Average gt 16 1 interval time 100MHz 100ppmxreading 0 4ns 8 bits resolution 2 Channels simultaneously SmiVidiv SVidiv atin o 10div SmV div 5V div PDS5022S T Displacement e 50V S00mMV S5V 2V SmV 200mV PDS6042S PDS6062S Single bandwidth Full bandwidth Low Frequency gt 5Hz at input AC coupling 3dB lt 1 4ns PDS5022S T Vertical system Rise time lt 8 75ns PDS6042S at input Typical lt 5 8ns PDS6062S The voltage difference AV between any two DC accuracy points on the wave form after averaging the average captured wave forms of more than 16 5 Reading 0 05 divisions Trigger Rising Falling Type Line synchronization Field synchronization Video Odd field Even field Any line
15. 3 immediate execution buttons SAVE RCL MEASURE ACQUIRE UTILITY CURSOR DISPLAY AUTOSCALE AUTOSET and RUN STOP To perform Sampling Setup Press the ACQUIRE button and the menu is displayed in the screen shown as Fig 43 ACQU MODI Function Menu Setting Description Sample _ Normal sampling mode Use to capture maximal and minimal Peak Detect samples Finding highest and lowest points over adjacent interveals Use to reduce random noises four Average options are available as followed 4 16 64 128 Four options indicating the number Averages of averages Fig 35 ACQU MODE Menu Here is an example for using Peak Detect function the input is a standard test square waveform You can see the burrs on the falling edge of signal is detected with noise when it is turned on Fig 36 Peak Detect mode 39 User Manual of PDS Series Oscilloscope Fig 37 Normal ACQU Mode Fig 38 Average on with reduced noise on waveform To set the Display System Press DISPLAY once to activate DISP SETUP menu as shown as Fig 47 Menu Vectors The adjacent sampling points are joined by vecto form Dots Only displaying sampling points captured OFF Isec Persist 2sec Ssec Options for setting the persistence time for each sampling point Infinite XY Show waveform as CH1 X against CH2 Y Vectors Transmit data in vector Off Turn off battery level Display Type Press F1 next to Type to change fro
16. ENU button and call out the CH1 SETUP menu 2 Press the F2 menu selection button and select the Channel as OFF with Channel switched off 3 Press F2 menu selection button again select the channel as ON with Channel is switched on 3 Regulate the Attenuation Ratio of the Probe In order to match the attenuation coefficient of the probe it 1s required to adjust the attenuation ration coefficient of the probe through the operating menu of the Channel 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 1 1 the operation steps is shown as follows 1 Press the CH1 MENU button access CH1 SETUP menu 2 Press the F3 menu selection button and select 1X for the probe The Fig 17 illustrates the setting and the vertical scale factor when the probe of the attenuation coefficient of 1 1 1s used 24 User Manual of PDS Series Oscilloscope Fig 17 Regulation of the Attenuation Ratio of the Probe A List of the Attenuation Coefficients of Probes and the Corresponding Menu Settings Attenuation Coefficient of the Probe Corresponding Menu Setting 1X 10X 100 1 100X 1000 1 1000X 4 Setting of Wave Form Inverted Wave form inverted the displayed signal is turned 180
17. FFT FFT ON ON Source Source CH1 CH1 Window Window l Rectangl h Hanningj Format Format dB dB FFT Zoom gs j CH1 20dB 250Hz DIV 5KS 9 oae E ONE E hae ERS j Fig 23 Rectangle window Fig 24 Hanning window Quick Tips mM If desired use the zoom feature to magnify the FFT waveform E Use the default dBV 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 on the source signal E To reduce random noise and aliased components in repetitive or single shot events set 29 User Manual of PDS Series Oscilloscope 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 While FFT mode is turned on DO NOT USE THESE SETTINGS 1 Horizontal window setting 2 Change source channel in CH1 CH2 Setup menu 3 Turn
18. N Fig 52 Voltage Cursor Measurements Time Cursor measurement Press CURSOR to activate CURS MEAS menu Press F1 to select Time and Type there are two purple vertical lines appeared on the screen representing CURSOR 1 on the left and CURSOR2 on the right 50 User Manual of PDS Series Oscilloscope Press F2 to select CH1 as the Source Move CURSORI and CURSOR2 and the results change accordingly as in Fig 53 Fig 53 Time Cursor Measurements Use Autoscale This is a very useful function for first time users to carry out a simple and quick test on the input signal It tracks the incoming signal and set up all settings to measure the signal automatically The settings include Trigger mode Division for voltage and Time scale based on the type of the signal the Amplitude of signal and Frequency of the signal OFF Turn off Autoscale Autoscale ON Turn on Autoscale Vertical Only adjust vertical scale according to input signal Horizontal Only adjust horizontal scale according to input signal HORI VERT Adjust both vertical and horizontal scales according to input signal Display only one or two cycles in waveform Display Multi cycles in waveform The function can work on both Channel 1 and Channel 2 simultaneously Here is an example for how to use the function 51 User Manual of PDS Series Oscilloscope 1 Press Autoscale to activate its menu 2 Press F1 next to Autoscale to select ON 3
19. OWON PDS Series Portable LCD Digital Storage Oscilloscope User Manual E PDS5022S E PDS5022T E PDS6042S E PDS6062S www owon com cn www owon com hk Mar 2012 edition Ver1 2 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 2 130430 Fax 86 596 2109272 Web www owon com hk Mail Business Consulting sales owon com hk Sale service service owon com hk User Manual of PDS Series Oscilloscope General Warranty The Lilliput warrants that the product will be free from defects in mat
20. 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 what shown as below 1 Please wipe the dust from the instrument and probe surface with a soft cloth Do not make any scuffing on the transparent LCD protection screen when clean the LCD screen 2 Clean the instrument with a wet soft cloth not dripping water during the period of which please pay attention to the 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 67 User Manual of PDS Series Oscilloscope Appendix D Battery Using Guide Battery electric quantity indicating symbols including E H ana 1 Charging the oscilloscope The lithium battery maybe not be charged when delivery Please charge the battery for 12 hours to ma
21. anical 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 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 User Manual of PDS Series Oscilloscope To perform 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 the Operating Mode Press the UTILITY button to get access to the FUNCTION menu an
22. annel 2 wave form from the Channel 1 wave form CH2 CH Subtract the Channel 1 wave form from the Channel 2 wave form CH1 CH2 Add the Channel 1 wave form to the Channel 2 Waveform of Corresponding FFT operation 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 26 User Manual of PDS Series Oscilloscope 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 The following table describes the FFT menu Function Menu Setting Instruction 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 operation steps are as follows 1 Press F1 once to turn on FFT Press again to turn it off Be aware that only to use FFT when Horizontal Menu is set for main Timebase Not on Window setting mode Again the green waveform
23. ch 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 14 By pressing F1 F2 F3 F4 etc you can change and select the settings The following table explains more details of these function and settings Function Setting Description Menu AC Block the DC component from input signal Coupling DC Pass both AC and DC components from input signal Ground Input signal is interrupted F ON O Close the measurement channel Channel Open the measuring channel Choose one according to the probe Probe attenuation factor to make the vertical scale reading accurate Fig 14 Channel Inverted said a ehh Seine Men isplay inverted wavetorm 1 Setting Coupling for selected Channel A square waveform is used as an input in this example Press the CH1 MENU button to show submenu CH1 SETUP Press FI next to Coupling and select AC now DC component is blocked from input signal See Fig 15 Press FI again to set DC mode both AC and DC components get passed See Fig 16 23 User Manual of PDS Series Oscilloscope Fig 15 AC Coupling Fig 16 DC Coupling 2 Setting the Channel ON OFF Taking the Channel for example the operation steps are shown as below 1 Press the CH1 M
24. ck whether the probe is properly connected to the signal connecting wire Check whether the signal connecting wire is correctly connected to 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 5 No Display Responses to the Push down of RUN STOP Check whether Normal or Signal 1s chosen for Polarity in the TRIG MODE menu and the trigger
25. d 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 10X shown as Fig 4 Press any key enter system Fig 4 Power on the Instrument 2 Set the Switch in the Oscilloscope Probe as 10X and Connect the Oscilloscope with CH1 Channel Align the slot in the probe with the plug in the CH1 connector BNC and then tighten the probe with rotating it to the right side Connect the probe tip and the ground clamp to the connector of the probe compensator shown as Fig 5 User Manual of PDS Series Oscilloscope Probe comp CH1 Fig 5 Connection of the Probe 3 Press the AUTO SET Button The square wave of 1 KHz frequency and 5V peak peak value will be displayed in several seconds see Fig 6 Fig 6 Auto set Check CH2 by repeating Step 2 and Step 3 User Manual of PDS Series Oscilloscope To perform 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 1 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 ho
26. d when XY Format is set M Reference or Any calculated wave form E Cursor Function m All time base controls E All Trigger controls Use XY Format 1 Apply input signals to both CH1 and CH2 2 Press the DISPLAY to activate DISP Set menu 3 Press F1 to set Vectors as type F2 to set Infinite for persist and F3 to set XY as Format as shown as Fig 43 M Pos 0 000ns CH2 80 0mu Fig 43 Display in XY Format To Save and Recall a Waveform Our PDS series Digital Oscilloscope is capable to save up to four wave forms Stores waveform can be recalled for review later To active this function Press the SAVE RCL to bring up WAVE SAVE menu Details of setting and functions are shown in Fig 44 42 User Manual of PDS Series Oscilloscope Function Menu Setting Description Sauce cD Source of wave form to be saved MATH Available sources CH1 CH2 MATH A B Location where selected waveform to be ae saved or recalled Action to save selected waveform to Save selected location CH X OFF Turn Display on off for selected and X A B C D ON stored waveform Fig 44 Save a waveform A sine wave form input CH1 Follow these steps to save waveform from CH1 Under WAVE SAVE MENU press F1 next to Source to select CH1 Press F2 next to WAVE to assign Location A for this waveform Press F3 next to Save to store the waveform captured from CH1 Recall a stored waveform Once the waveform is stored you can reca
27. ent c to 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 PDS Series Oscilloscope Table of Contents General SAI CW TIN OF NATION a isiceeesstet cscs tenicis EE a ees 4 Safely Terms and SYMONS iirc E N 5 General J COLUL ES osiris sonen EEEE O EE O TEON EOE OTN 7 Junior User Guid enook ociera oa R E ENR E a a 8 Introduction to the Front Panel and the User s Interface of the PDS series Oscilloscope 9 Check the Package Contents ssiecasiveadscsssaivenesvencevavs anasino odeon iaasa a onana idan eainiie 13 To perform the Function Inspection ssssseeccoosssssceccocsssssececoosssssececococsssssseccoosssssseesossssssseeesso 14 To perform the Probe Compensation seecsoossssseeccocssssseseccccosss
28. erials and 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 equipm
29. esssssessssssssesssssssssssssssssssssssssssssssssssesnees 62 Appendix B Package CONlCIUS csicwnusosrctucasnasavdissadascdaaassavievausiseann euissseaenasa esse aspen 67 Appendix C Maintenance Cleaning and Repair ing sssccccccccccccccccccccsssssssssssssesseeees 67 Appendix D Battery Using Guide ci cecesacasiueutcciusanadascusvecniviles esaucseusasauuinasanussesoni ion nemeacbvosae 68 User Manual of PDS Series Oscilloscope General Safety Information 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 To avoid Fire or Personal 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 Proper Power Cord Use only the power cord supplied with the product and certified to use in your country Connect or Disconnect Correctly When the probe or test lead is connected to a voltage source please do not connect and disconnect the probe or test lead at random Product Grounded This instrument is grounded through the power cord grounding conductor To avoid electric shock the grounding conductor must be grounded The product must be grounded prope
30. gger 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 reading shows the time deviation between the horizontal trigger position and the screen centre line which equals 0 in the screen center This reading shows the time deviation between the horizontal trigger position and the window centre line which is regarded as 0 1n the window center It indicates the current function menu It indicates the operation options for the current function menu which changes 11 User Manual of PDS Series Oscilloscope 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 hi Falling edge triggering wy Video line synchronous triggering wil Video field synchronous triggering 12 The reading shows the 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 c6 indicates the AC c
31. ing Press F1 next to the display to switch trigger from one type to another Edge Trigger It happens when the trigger input passes through a given level along the set direction Video Trigger Carry out the field or line video trigger of the standard video signal The Edge and Video Trigger menus are described respectively as below Edge Trigger Under the Edge Trigger mode a trigger happens in the trigger threshold value of the input signal edge When the Edge Trigger is selected a trigger will occur in the rising or falling edge of the input signal The Edge Trigger Menu is shown as Fig 30 Fig 30 Edge Trigger Menu The Edge Trigger Menu is described as below Seting Description Channel 1 as the trigger source Channel 2 as the trigger source Source Use external source 1 5 of the External Trigger Source for increasing range of level Rising Trigger on the rising edge Slope i l Falling Trigger on the falling edge Auto Acquire data and display waveform with or without Mode a trigger Normal Acquire data and display waveform when trigger 34 User Manual of PDS Series Oscilloscope o Acquire data and display waveform when detecting a trigger and stop sampling AC Block the direct current component Unblock all components Block the high frequency signal and only unblock the low frequency component Block the low frequency signal and only unblock the high frequency component Coupling o pe BR po
32. is displayed as a result of FFT 2 Press F2 to switch the FFT between CH1 and CH2 3 Press F3 to choose WINDOW for FFT there are four options here including Rectangle Hamming Hanning and Blackman We will give details of these options later 4 Press F4 to switch between dB and Vrms 2A User Manual of PDS Series Oscilloscope 5 Press F5 to zoom in out options including multiplied 1 2 5 10 6 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 7 Press F1 to turn off FFT and then press math menu to go back to WAVE MATH menu Selecting an FFT Window 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 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 the best type for measuring the frequency spectrum of nonrepetitive signals and Recan 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 w
33. ith 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 Hamming 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 Hanning Use Hanning for measuring sine periodic and FAS narrow band random noise This window works on transients or bursts where the signal levels before and after the event are significantly different 28 User Manual of PDS Series Oscilloscope This is the best window for measuring the amplitude of frequencies but worst at resolving frequencies Use Blackman Harris for measuring predominantly Blackman single frequency waveforms to look for higher order harmonics OWON i O M Pos 1 030KHz FFT STUE p M Fos 2 SURNE FFT i i y FFT FFT ON ON Source Source CH1 CH1 Windo Window Format Format dB dB FT Zoom EFT Zoom a x2 wW aii E cae Ge scesnaeaeee pitas tae re oe a ao Fig 21 Blackman window Fig 22 Hamming window OWON SIO M Pos 1 030KHz FFT AWON Soo A ED FFT l
34. ke sure enough power to supply the oscilloscope should be turned on during charging to oscilloscope 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 O 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 Replacing 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 68
35. 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 with the AUTOSET button pressed the setting above can be completed automatically 6 After the AVERAGE value sampling is set in the ACQU MODE or a longer duration is set in the DISP MODE the display rate is slowed down It is a normal phenomenon 61 User Manual of PDS Series Oscilloscope Appendix A 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 Self calibration procedure All specification standards can be fulfilled except one s marked with the word Typical Characteristic e25MHz PDS5022S T Bandwidth e40 MHz PDS60428S e60MHz PDS6062S Channel 2 1 External Normal Peak detect Averaging Acquisition Sample rate e 1 OOMS s PDS5022S T real time e250MS s PDS6042S PDS6062S Input coupling DC AC Ground Input impedance je1MQ 2 in parallel with
36. ll and display it on the screen The waveform would remain there until the next one is stored at the same location hence the previous stored waveform would be overwritten by the new one To recall a stored waveform activate WAVE SAVE menu Press F2 next to Wave to select from one of four locations the CH X would show the location you ve chosen Press F4 next to CH X to change to ON Now you will see a stored waveform displayed on the screen with whatever waveforms are already on there Example to save recall a waveform from location A Fig 45 43 User Manual of PDS Series Oscilloscope 1 Pos 0 000ns WAVE SAVNI CH1 0 00mu Fig 45 Wave SAVE RCL To perform the Auxiliary System Function Setting Press the UNTILITY button and the menu is displayed in the screen as Fig 46 System Status Display the system function menu Recall Factory ee Reset system settings to factory default Do Self Cal Carry out internal Calibration according to pre set procedures Setting Chinese English cat Support multi languages choose you Language e a bapuape Chinese P i Fig 46 Function Menu Carry out a Self Calibration We have a built in Self Calibration procedure by performing a Self Calibration would help to maintain the accuracy of your oscilloscope under ambient temperature It is recommended to carry a self Calibration if the change of the ambient temperature is up to or exceeds 5 C Notes Di
37. m Vectors to Dots Fig 40 and Fig 41 show waveform in different type 40 User Manual of PDS Series Oscilloscope Fig 40 Display in the Vector Form Fig 41 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 42 M Pos 0 000ns Fig 42 Infinite Persistence Display XY Format This format is only applicable to Channel 1 and Channel 2 After 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 untriggered 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 41 User Manual of PDS Series Oscilloscope 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 Notes The following functions would be disable
38. make it easy to see more details of the signal itself As it is in Fig 60 after applying Average user can easily identify the burrs on the rising and falling edges of some part of the signal see Fig 60 58 User Manual of PDS Series Oscilloscope ACQU MODI Fig 60 Reduce Noise level by using Average function Example 5 Examine the Phase shift between two related signals X Y mode is a very useful when examining the Phase shift of two related signals This example takes you step by step to check out the phase change of the signal after it passes a specified circuit Input signal to the circuit and output signal from circuit are used as sources signals 1 Set up attenuation coefficient to 10X through Probe menu for both CH1 and CH2 Switch Probes to 10X For source signals CH1 takes in input signal to the circuit and CH2 takes in output signal from circuit 2 Press AUTOSET adjust VOLTS DIV for both CH1 and CH2 to the same amplitude level to get an ellipse 3 Press DISPLAY to activate DISP SET menu then F3 to select XY mode Now the waveform is displayed as Lissajou s curve adjust VOLTS DIV and VERTICAL POSITION to get the best possible display work out the phase shift as in Fig 61 je The signal mustbe centered and kept in the horizontal direction a See Fig 61 Lissajous Graph 59 User Manual of PDS Series Oscilloscope Sin q A B or C D where q is the angle of phase shift A B C and D as them i
39. n Fig 69 The angle of phase shift q arcsin A B or arcsin C D Example 6 Video Signal Trigger Observe the video circuit of a television apply the video trigger and obtain the stable video output signal display For the trigger in the video field carry out operations according to the following Steps l 2 3 4 5 Press the TRIG MENU button to display the trigger menu Press the F1 menu selection button and choose Video for Type Press the F2 menu selection button and choose CH1 for Source Press the F3 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 62 MH Fos 0 600ns Fig 62 Wave Form Obtained from Video Field Trigger 60 User Manual of PDS Series Oscilloscope Troubleshooting 1 In the case of that the oscilloscope is still in the black screen state without any display after the power is switch on perform the following Basic Troubleshooting hints 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 be completed the checks above If this product still can not work normally please get in touch with Lilliput and we will be under your service 2 After acquiring the signal carry out the following operations if the wave form of the signal is not displayed in the screen Che
40. n button to choose the option Perform Self Calibration finally run the program after confirming that everything is ready now User Manual of PDS Series Oscilloscope Introduction to the Vertical System Shown as Fig ll 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 11 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 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
41. nction Built in FFT function Perform detecting the average and peak values of the waveform Real time Digital Oscilloscope Multiple triggering including Edge video and Alternating triggering RS232 or USB communication ports for PC Different continuous displaying time Multiple language User interface User Manual of PDS Series Oscilloscope Junior User s Guidebook This chapter deals with the following topics mainly Introduction to the front panel and the user s interface of the PDS series oscilloscope To perform the general inspection To perform the function inspection To perform the probe compensation To set the probe attenuation coefficient To use the probe safely To perform an self calibration Introduction to the vertical system Introduction to the horizontal system Introduction to the trigger system User Manual of PDS Series Oscilloscope Introduction to the Front Panel 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 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 oscilloscope enabling you to be familiar with the use of the PDS series oscilloscope in the shortest time The PDS series oscilloscope offers a simple front panel with distinct functions to users for their completing some
42. nt Before using them all sources of channels have to be switched on These can be done through CH menu as mentioned before Please be ware that this function only applies to waveform captured from input channels at YT format It would not work on saved waveforms calculated waveforms and waveform in XY or SCAN format In this example we apply square wave to Channel 1 and sine wave to Channel 2 and we want to measure the frequency Peak to Peak value of Channel 1 and mean value and RMS value for Channel 2 Here 1s how we set them up Press MEASURE to active MEASURE MENU Press F1 next to Source Type to highlight Source Press F2 to choose first sources as CH1 Press F3 to choose second source again as CH 1 Press F4 to choose third source as CH2 Press F4 to choose fourth source as CH2 Press F1 again to highlight Type Press F2 to select Freq A reading of 1 182Khz appears automatically Press F3 to select Pk Pk reading appears immediately under highlighted type Press F4 to select Mean for CH2 reading appears immediately Press F5 to select Cyc RMS reading appears immediately The measured value will be displayed in the reading window automatically see Fig 50 48 User Manual of PDS Series Oscilloscope OWON M Pos 0 000ns CH1 24 0u Fig 50 Automatic Measurement To perform the Cursor Measurement Press CURSOR button on the front panel to activate cursor function menu CURS
43. ok Up till now you have already been familiar with the initial operations of VERTICAL CONTROLS HORIZONTAL CONTROLS and TRIGGER CONTROLS and 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 To set the Vertical System To set the Horizontal System To set the Trigger System To perform the Sampling Setup To set the Display System To Save and Recall a Wave Form To perform the Auxiliary System Function Setting To perform the Automatic Measurement To perform the Cursor Measurement To use Autoscale function To use Executive Buttons 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 22 User Manual of PDS Series Oscilloscope 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 ea
44. ok 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 and connect the reference wire clamp with the ground wire connector of the probe connector and then press the button AUTOSET see Fig 5 2 Check the displayed waveforms and regulate the probe till a correct compensation is achieved see Fig 7 and Fig 8 Overcompensated Compensated correctly Under compensated Fig 7 Displayed Waveforms of the Probe Compensation 3 Repeat the steps mentioned if necessary l ea ae we S we me Fig 8 Adjust Probe User Manual of PDS Series Oscilloscope 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 attenuation 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 is shown This setting will be valid all the time before it is changed again Z 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 9
45. on XY Format 4 Trigger control SET 50 5 Auto scale function 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 division with the sequence of 1 2 5 The vertical sensitivity goes up when the knob is 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 25 30 User Manual of PDS Series Oscilloscope MEASURI CH1 1 00 divs 20 00yv Fig 25 Information about Vertical Position To set the Horizontal system The HORIZONTAL CONTROLS includes the HORIZONTAL MENU button and such knobs as HORIZONTAL POSITION and SEC DIV 1 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 horiz
46. ontal scale factor for setting the main time base or the window 3 HORIZONTAL MENU button Press this button to active TIME MODE shown as below with description of each function see Fig 26 Setting Description oo The setting of the horizontal main time base is used to display the wave form The defined window area for display is expanded to the full screen A window area is defined by two Set Window y cursors Fig 26 Time Mode 31 User Manual of PDS Series Oscilloscope 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 27 TIME MODI Main Fig 27 Main Time Base Window Setting 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 see Fig 28 MN Pos 0 000ns U 0 000ns TIME MODI H1 400mu Fig 28 Set Window Zoom in 32 User Manual of PDS Series Oscilloscope Press the F3 menu selection button and choose Zone Window As a result the window area defined by two cursors will be expanded to the full screen size see Fig 29 i W N 1 Pos 0 000ns U 1 Mil i vi i l Fig 29 Zone Window To set the Trigger System
47. oupling 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 al 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 22 The positions of two purple dotted line cursors measurements User Manual of PDS Series Oscilloscope Check the Package Contents 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 mech
48. perating 3 000 m Non operating 15 000 m Mechanical Specifications PDS6042S Model PDS5022S T PDS6062S 50mm gt 15Tam gt 103mm Manufacturer reserves the right to change the specification at anytime without prior notice Interval Period of calibration 65 User Manual of PDS Series Oscilloscope CALIBRATION Perform self calibration to verify that your instrument is operating properly Self calibration performs an internal self alignment routine to optimize the signal path in the oscilloscope The routine uses internally generated signals to optimize circuits that affect channel sensitivity offset and trigger parameters Let the instrument to warm up for at least 30 minutes before performing self calibration You should perform self calibration according to the following recommendations e Every 12 months or after 2000 hours of operation e If the ambient temperature is gt 10 C from the calibration temperature If you want to maximize the measurement accuracy e After experiencing abnormal operation e To verify proper operation after repairing 66 User Manual of PDS Series Oscilloscope Appendix B Package Contents Standard Accessories Passive probe x 2 CD x 1 PC link application software RS232 data line or USB data line x 1 Power line x 1 up to the standards of the country in which it is used User Manual x 1 Options Battery Appendix C Maintenance Cleaning
49. rly 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 Check all Terminal Ratings To avoid fire or shock hazard check all ratings and markers of this product Refer to the user s manual for more information about ratings before connecting to the instrument Do not operate without covers Do not operate the instrument with covers or panels removed Use Proper Fuse Use only the specified type and rating fuse for this instrument Avoid exposed circuit Do not touch exposed junctions and components when the instrument is powered Do not operate if in any doubt If you suspect damage occurs to the instrument have it inspected by qualified service personnel before further operations Use your Oscilloscope in a well ventilated area Make sure the instrument installed with proper ventilation refer to the user manual for more details Do not operate in wet conditions Do not operate in an explosive atmosphere Keep product surfaces clean and dry User Manual of PDS Series Oscilloscope Safety Terms and Symbols Safety Term
50. s Terms in this manual The following terms may appear in this manual A Warning Warning indicates the conditions or practices that could result in A injury or loss of life Caution Caution indicates the conditions or practices that could result in damage to this product or other property Terms on the product The following terms may appear on this product Danger It indicates an injury or hazard may immediately happen Warning It indicates an injury or hazard may be accessible potentially Caution It indicates a potential damage to the instrument or other property might occur Safety Symbols Symbols on the product The following symbol may appear on the product AN Hazardous Voltage Refer to Manual Protective Earth Terminal pem Chassis Ground _ _ Test Ground User Manual of PDS Series Oscilloscope To avoid body damage and prevent product and connected equipment damage carefully read the following safety information before using the test tool This product can only be used in the specified applications Warning The two channels of the oscilloscope are non isolated electrically The channels should adopt common basis during measuring To prevent short circuits the 2 probe ground must not be connected to 2 different non isolated DC level Warning The channels should adopt common basis during measuring To prevent short circuits the 2 probe ground must not be connected to 2 different non isolated DC le
51. s Oscilloscope 2 Press F3 to set Pk PK 9 Get Pk Pk readings of Channel 1 and Channel 2 see Fig 57 10 Calculate the amplifier gain with the following formulas Gain Output Signal Input signal Gain db 20xlog gain MEASURI Fig 57 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 level 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 56 User Manual of PDS Series Oscilloscope Pre
52. scateceiuovsesaseaacecausses 40 To Save and Recall Wavelormiiisiccccscdsccccivsessiscsssedescetacsesistescaceveasauiessdedaccoesssesecdecsocssacssesesescee 42 To perform the Auxiliary System Function Setting ccccccccccsssssssssscccccsssssssssscccsssssseeees 44 To perform the Automatic Measurement sesssssseeccocsssssccecococossssecccoccsssssececosssseseccoosssssseeesso 46 To perform the Cursor Measurement seecccosssssceccocsssssececcoosssssseeccocosssscecccosssssseccsosssseseeesso 49 Usc Amtoscale scierie asee NE EEEE E e a ai 5I Vse Executive control Sasain a a aaa 53 OUCH SEAT GUAE yii Ta EEE E EE EE onceseseeseeantioneietestesustes 54 Example 1 Measuring a Simple Signal cssssssecccccsssssecccccsssssccecocossssssceccoosssssseesossssssseeesso 54 Example 2 Working out the Gain of the Amplifier in the Metering Circuit 00000000000 55 Example 3 Capture the Single Signal visissisdesssssccswissssccssiaccscnssaascecesesssevdaaiveascveseasabensensdeauviawese 56 Example 4 Analyze the Details of a Signal ccccccsssssssscccccccssssssssscccccsscssssssccccsssesseeees 57 Example 5 Examine the Phase shift between two related signals cssssscccsssssssssssees 59 Example 6 Video Signal ripp Ei iscssssccsssscasssssncccessecasaasidecouassccssvasiaccessscecsosaseccessousessasascusescansies 60 Troubles hoon irisi a e EE EL E ER 61 Appendix A Technical Specifications ssscssssss
53. sconnect all inputs before carrying out a self calibration Fail to do so may cause damage to your oscilloscope 44 User Manual of PDS Series Oscilloscope Here are the procedures for carrying a self calibration Disconnect all inputs including probes and wires etc Press UTILITY to activate Function menu Press F3 next to Do Self Cal Now there is a yellow window popping up to ask for a confirmation Press F3 again the Oscilloscope starts the self calibration and yellow window remains the calibration is done Please be ware that no contacts to any inputs channels till the calibration is done SYS STAT System State Press the F1 menu selection button and choose SYS STAT item The menu pops up in the screen as Fig 47 ie WE Horizontal __ Show the horizontal parameter of the channel Vertical __ Show the vertical parameter of the channel _ Trigger __ Show the parameters of the trigger system Misc Show the serial number and edition number Fig 47 SYS STAT Menu 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 48 45 User Manual of PDS Series Oscilloscope M Pos 0 000ns HORIZONTAL SYSTEM STATUS
54. splacement 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 20 User Manual of PDS Series Oscilloscope Introduction to the Trigger System Shown as Fig 13 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 13 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 found 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 it can be observed that the trigger level value displayed in the screen changes 3 Press the button SET TO 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 21 User Manual of PDS Series Oscilloscope Advanced User s Guidebo
55. ss the F1 menu selection button and choose Edge as the trigger type Press the F4 menu selection button and choose Single as the trigger mode Press the F3 menu selection button and choose Rising as the slope eS eS SS Rotate the LEVEL knob and adjust the trigger level to the mid value of the signal to be measured 10 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 than the normal signal level and then press the RUN STOP button and wait 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 58 OWON M Pos 0 000ns Fig 58 Capture the Single Signal Example 4 Analyze the Details of a Signal Noise is very common inside most of the electronic signal To find ou
56. ssececocosssseeccosssssssecesosssssseeesso 16 To set the Probe Attenuation Coefficient ssssseceseecocooscsssssssssscesesesesoosoososssssssseseecsesesssssso 17 TO ASE THE Probe Safiy asnus a A E sass 18 To periorm Self cahDralo n erci E A Ea Eia 18 Introduction to the Vertical System ssssssseeccocsssssseccoosssssecccoosssssececocosssseccesosssssececessssssssseeesso 19 Introduction to the Horizontal System eesscosssssecccccsssssececcoossssececocosssseccesocsssssssseceosssssseeesso 20 Introduction to the Trigger System ssssssecccccsssssceccoosssssececccsssssececocossssececoccossssssecesosssseseeesso 21 Advanced User s Guid enon siora e aa aeaoe 22 Tosetthe Verncal Systemics e aae a E ea E AOT 23 Perform Mathematical Manipulation Function cccccccscssssssssssssccccccceesssscsccccsssseessssecs 26 Usm FEE MOCION eiaei T teen nen Meer Tere 26 Application of VERTICAL POSITION and VOLTS DIV KMobDs cccccccrrrereeees 30 To Sel the Horizontal systems caseina sana aea eea aai A NEES aa i idrat ioaea 31 TO GEE TNE Tripper SY SCCM ouen eiea aa oaa ieat a aea eiaeiiai 33 Toeter Contro bisaeun NE AEEA EE EAE E needs 34 To Operate the F nchon Meni sieicsceceeccesscarsincsscceieessaes a a e a E aAA 39 TO perform SaMPU NS Setecin adasen aaar i aaa aaa 39 User Manual of PDS Series Oscilloscope Toset the Display Sy Steins sisseccssasascescecansovsaseacsieccasscetevanseecsssccaseozasss ssssecseusesss
57. t what s inside the noise and reduce the level of noise is very important function our oscilloscope is capable to offer Noises Analysis The level of noise sometime indicates a failure of electronic circuit The Peak Detect 57 User Manual of PDS Series Oscilloscope function acts an important role to help you to find out the details of this noise Here is how we do it l Apply Square waveform to CH1 as source signal press ACQUIRE button to active ACQU MODE menu 2 Press F2 to select Peak Detect function The signal displayed on the screen containing some noise by turning on Peak Detect function and changing time base to slow down the incoming signal any peaks or burr would be detected by the function See Fig 59 Fig 59 Signal with Noises Reduce the effect of noises from your signal When focusing on signal itself the important thing is to reduce the noise level as lower as possible this would enable user to have more details about the signal The Average function offered by our Oscilloscope can help you to achieve this Here are the steps for how to enable Average function 1 Apply square waveform to CH1 as a source signal Press ACQUIRE button to bring up ACQU MODE menu 2 Press F3 selection Average Press F4 to select number of data points for average Available choices of number are 16 32 64 128 The higher the number the better result user will get Use would see a much reduced random noise level and
58. uire the waveform without any triggering condition detected in this mode in which it will be triggered compulsively when waiting for a specified period of time without any triggering condition ignited When an invalid trigger is enforced the oscilloscope can not keep the waveform in phase Normal trigger mode In this mode the oscilloscope cannot acquire the waveform till it is triggered When there is not any trigger the oscilloscope will display the origin waveform without new waveforms captured Single shot mode In this mode the oscilloscope will detect a trigger and capture a waveform at each time when the customer presses the RUN STOP key Sensitivity Trigger circuit including sluggish in order to exclude the influences from signal noise and get the stable trigger The sluggish is adjustable among 0 2div 1 0div It means when set on 1 0 div trigger circuit don t have any response to any signal of PK PK range lt 1 0div which to exclude the influences from signal noise Holdoff A time interval before the oscilloscope responses to next trigger signal During this Holdoff period the trigger system becomes blind to trigger 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 38 User Manual of PDS Series Oscilloscope To operate the Function Menu The function menu control zone includes 6 function menu buttons and
59. vel The diagram of the oscilloscope ground wire connection Probe Oscilloscope AC Adaptor Electrical Outlet It is not allowed to measure AC power when charging the oscilloscope with adapter Warning To avoid fire or electrical shock when the oscilloscope input signal connected is more than 42V peak 30Vrms or on circuits of more than 4800VA please take note of below items Only use accessory insulated voltage probes and test lead Check the accessories such as probe before use and replace it if there are any damages Remove probes test leads and other accessories immediately after use Remove USB cable which connects oscilloscope and computer Do not apply input voltages above the rating of the instrument because the probe tip voltage will directly transmit to the oscilloscope Use with caution when the probe is set as 1 1 Do not use exposed metal BNC or banana plug connectors Do not insert metal objects into connectors User Manual of PDS Series Oscilloscope General features Model Bandwidth Sample Rate PDS5022S T 25MHz LOOMS s PDS6042S 40MHz 250MS s PDS6062S 60MHz 250MS s Record length of 6 000 points for each channel Reading out with the cursor Twenty automatic measurement functions Autoscale function Color liquid crystal display of high resolution and high contrast Storage and recall waveforms Automatic setting function provided capable of fast setting Multiple waveform calculation fu
60. we HoldOff 100ns Set interval by using TRIG LEVEL control value 10s range from 100ns to10s Holdoff aii Reset hold time to default value 100ns Reset Holdoff A time interval before the oscilloscope responses to next trigger signal During this Holdoff period the trigger system becomes blind to trigger signals This function helps to view complex signals such as an AM waveform Press Function next to Holdoff to activate and use TRIG LEVEL knob to set time for Holdoff Set up a Rising Falling for edge trigger Applying Sine Waveform to CH1 1 Press the TRIG MENU button c the trigger menu Press F1 next to Type and select Edge Press the F2 next to Channel and choose CH1 for Source Press the F3 next to Slope to choose Rising Press the F4 next to Mode to choose Auto Press F5 to go down next eo ee Press F2 next to Coupling and choose DC You now have waveform displayed as Fig 31 8 Press F3 next to Holdoff and use TRIG LEVEL knob to set time 35 User Manual of PDS Series Oscilloscope Fig 31 Waveform when Triggered on Rising Edge 9 Press F1 Arrow sign to return to previous menu 10 Press F3 next to Slope to choose Falling option see Fig 32 Fig 32 Waveform when Triggered on Falling Edge Video Trigger After choosing Video Trigger a trigger is possible in field or line of NTSC PAL or SECAM standard video signal The operation menu of Video Trigger is shown as Fig 33

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