PeakTech 1200 operation manual 25 MHz Storage Oscilloscope
Contents
1. PeakTech operation manual 25 MHz Storage Oscilloscope with colour display 1 Safety Precautions This product complies with the requirements of the following European Community Directives 89 336 EC Electromagnetic Compatibility and 73 23 EC Low Voltage as amended by 93 68 EC CE Marking Overvoltage category III 1000V pollution degree 2 CAT I For signal level telecommunication electronic with small transient over voltage CAT II For local level appliances main wall outlets portable equipment CAT III Distribution level fixed installation with smaller transient overvoltages than CAT IV CAT IV Units and installations which are supplied overhead lines which are stand in a risk of persuade of a lightning 1 e main switches on current input overvoltage diverter current use counter To ensure safe operation of the equipment and eliminate the danger of serious injury due to short circuits arcing the following safety precautions must be observed Damages resulting from failure to observe these safety precautions are exempt from any legal claims whatever Do not use this instrument for high energy industrial installation measurement This instrument 1s intended for use in installation over voltage category II according to IEC 664 For measuring circuit not exceeding 1000V DC 750V AC 20A The instrument must be set up so that the power plug can be removed from the socket easily Prior to connecti2. Window Zone Window CHi 10u CHZ bu Dnu H 500us W Z0 us CH1 400mu Fig 25 Zone Window 30 How to Set the Trigger System When the oscilloscope begins to collect the data and display the wave form depends on a trigger Once itis 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 nght side of the trigger point One knob and four function menu buttons are included in the trigger control zone 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 TRIG VIEW 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 shown as Fig 26 Fig 26 Trigger Mode Menu 31 Trigger Control There are two tngger modes Edge Trigger an
3. This instrument should run for more than 30 minutes continuously under the specified operating temperature If the change range of the operating temperature is up to or exceeds 56 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 Sampling ACQU Mode Sample Peak Detection Average Sampling Rate 250 MS s Input Input Coupling DC AC Input Impedance IMQ 2 connected with 20pF 3pF in parallel Probe attenuation coefficient 1X 10X 100X 1000X Max Input Voltage 300V Peak Value Level Sampling Rate Range 10S s 250MS s Waveform interpolation sinx x Record Length 6000 sampling points per channel Scanning Speed Range Sns div 5s div according to the stepping mode of S div 1 2 5 Measuring Accuracy of Time Single One Sampling Interval Time 100ppm x Interval A T DC 50M Reading 0 6ns gt Averages of 16 One Sampling Interval Time 100ppmx Reading 0 4ns iO Vertical A D Converter Resolution of 8 bits with the sampling carried out in two channels at the same time Sensitivity Volt division SmV div 5V div at the input BNC ree V div Displacement Range Range 50V 50V 500mV 5V 2V SmV 200mV SV 2V 5mV 200mV Simulative Bandwidth 60M Single Bandwidth Full Bandwidth Low frequency respond
4. AC 5Hz at BNC Coupling 3dB Rising Time Typical at lt 5 8ns BNC DC Gain Accuracy DC Measuring Accuracy The voltage difference AV between any two Average for ACQU MODE points on the wave form after averaging the captured wave forms of more than 16 5 Reading 0 05 divisions 68 Trigger Edge Trigger Full Bandwidth AC Coupling It is the same as the DC coupling in case of 50Hz or more Trigger Level Range 6 divisions from the screen center 600mV EXTS aiai Typical It 40mV 6 of Set Value is applicable to the signal with the rising EXT 5 200mV 6 of Set Value and falling time gt 20ns Trigger Displacement Preliminary Trigger 655 divisions Late Trigger 4 divisions Set Level to 50 Operation under the condition of input signal frequency gt Typical 50Hz Trigger Sensitivity Video trigger typical Signal System and Supporting the NTSC PAL and SECAM broadcast system Line Field Frequency of any field frequency of line frequency Video Trigger Type Measurement between cursors Peak to Peak Value Average RMS Frequency and Measurement Cycle Probe EX Position 10X Position gt IMQ 2 10MQ 2 Input Electric Capacity 85pf 115pf 14 5pf 17 5pf Input Voltage 150 V DC 300 V DC 69 General Technical Specifications Display Display Type 8 TFT LCD Liquid Crystal Display Display Resolution 640 Horizontal x 480
5. Vertical Pixels Display Colors 260000 Colors Output of the Probe Compensator 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 50Hz CAT II 1A T grade 250V Environment Temperature 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 mia 157mm 120mm I kilogram Interval Period of Adjustment One year is recommended for the calibration interval period T Appendix B Enclosure Standard Accessories Passive probe 2 1 2 m 1 1 10 1 CD 1 for operation instruction USB data line Power line one up to the standards of the country in which it is used User s Manual One Options O Battery Appendix C 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 as below 1 Please wipe the dust
6. a D H CO I CHA ATI Fig 60 Wave Form Obtained from the Video Line Trigger He Fault Treatment 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 amp Check whether the power connection is connected properly amp Check whether the power switch is pushed down to the designated position amp 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 amp Check whether the probe is properly connected to the signal connecting wire amp Check whether the signal connecting wire is correctly connected to the BNC namely the channel connector amp Check whether the probe is properly connected with the object to be measured amp 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 amp 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 conforms with the attenuation ration of
7. 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 and Cursor 2 3 Press the F2 menu selection button and choose CH1 for Source 4 Adjust the positions of CURSOR1 and CURSOR2 according to the measured wave form with the cycle and frequency of Cursorl and Cursor 2 displayed in the increment window The current position of Cursorl 1s displayed in the Cursorl window and that of Cursor2 1s displayed in the Cursor2 window see Fig 52 vi 0 M Pos 0 000ns CURS MEAS Type a eer Sein ime z oe gt VERE ET EEE ee oe Source CH1 Delta EDI P l l T I T I 1 I 1 gt x I 1 I 1 I 1 I 1 I 1 I ae E F L ee ee 5 H 1 1 1 a i L J S wd i i 163KHZ S 0 960n5 Cursor 1 0 O00ns Cursor 2 H 660ns TENT CHZ 50 0mu H 500us S CHL 400ny Fig 52 Wave Form of Cursor Measurement 54 How to Use Executive Buttons The executive buttons include AUTOSET RUN STOP and HARDCOPY AUTOSET This button is used for the automatic setting of all control values of the instrument to generate the wave form 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 RUN S TOP Enable or disable the waveform sampling Notice Under the Sto
8. 290 CHI 2 0007 CH1 2 000 Irigy d M Pos 0 000ns HZ CHZ Fig 15 AC Coupling Oscillogram frig d M Pos 0 000ns 50 m M 500us JG Fig 16 DC Coupling Oscillogram CH1 SETUP Coupling AC Channel ON Probe 1 X inverted OFF 50 Omu N 500us CH1 2 480 CH1 SETUP Coupling DC Channel ON Probe 1X Lnverted OFF H1 2 480 2 Setting the Channel ON OFF Taking the Channel 1 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 Channel as OFF with Channel 1 switched off 3 Press F2 menu selection button again select the channel as ON with Channel 1 is switched on 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 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 1s 1 1 the operation steps 19 shown as follows 1 Press the CH1 MENU button access CH1 SETUP menu 2 Press the F3 menu selection button and sel
9. 30 Video Trigger Menu The description of the Video Trigger menu is shown the following table Setting Inverted Applicable to the video signal of high black level Source Set Channel 1 as the trigger signal of the source Set Channel 2 as the trigger signal of the source Set the external input channel as the trigger signal of the source Divide the external trigger source by 5 and expand the external trigger level range Set a trigger synchronization in the vide line Set a trigger synchronization in the video field Se The operation steps for setting Channel 1 in Video Trigger Mode are as below l 2 3 4 5 Press the TRIG MENU button and get access to the trigger menu Press the F1 menu selection button and choose Video for Type Press the F2 menu selection button and choose Normal for Polarity Press the F3 menu selection button and choose CHI1 for Source Press the F4 menu selection button and choose Field for Sync The screen display is shown as Fig 31 Press the F4 menu selection button again and choose Line for Slope The screen display is shown as Fig 32 2362 ITB H M Pos 280 0us TRIG MODE ype Video Polarity Normal Source CH1 J 1 I U L 1 V b U L p U I I E EE e EE EE EE EE a H O H H Sync Field CH1 Su HZ 20u AC LOI ess rt CH1 A 1 Fig 31 Wave Form Triggered in the Video Field ri 0 M Pos 0 000ns TRIG MODE type eilel SE vaso Polarity Normal
10. Lnverted en EG E H ON CHL 2 000 CHZ 50 0m0 MEA p TS TT CH1 2 480 Fig 19 Wave Form Inverted 24 Implementation of Mathematical Manipulation Function The Mathematical Manipulation function is used to show the results of the additive and subtraction operations between Channel 1 and Channel 2 Taking the additive operation between Channel 1 and Channels 2 for example the operation steps are as follows l 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 Irig d M Pos 0 000ns WAVE MATH CH1 CH2 EN HA FN FP T ne CH2 CH1 ER Se TD ee eee ees eee es SCH CH2 CHA 2 000 CH2 2 000 H 50 us CH1 80 0mv Fig 20 Wave Form resulted from CH1 CH2 Mathematical Manipulation The corresponding FCL Functional Capabilities List of the Wave Form Calculation Setting CH1 CH 2 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 25 Application of VERTICAL POSITION and VOLTS DIV Knobs l 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 analy
11. MODE Sample Peak negale sea bal der L ong L J Average 3 s Averages CH1 5SOOmy CHZ 20u M 5OOus CH1 1 34v Fig 36 The displayed wave form after the noise 18 removed under the Average Mode in which the average number of 64 1s set 40 How to Set the Display System Push down the DISPLAY button and the menu displayed in the screen is shown as Fig 37 DISP SET Fig 37 Display Set Menu The description of the Display Set Menu is shown as follows Setting Vectors The space between the adjacent sampling points 1 the display is filled with the vector form a Only the sampling points are displayed Set the persistence time for each sampling point Format Show the relative relation between the vertical voltage and the horizontal time XY Channel 1 is displayed on the horizontal axis and Channel on the vertical axis Carry Bitmap The data transmitted in communication are in the bitmap form Vectors The data transmitted in communication are in the vector form _A 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 38 and Fig 39 irig M Pos 0 000ns DISP SET Format Carry Bitmap f No CH1 640ny M 200us CHi Z D0u CH2 20 mu Fig 38 Display in the V ector Form ri
12. Mode Menu The description of the Horizontal Menu 1s as follows Setting Description Main Time Base The setting of the horizontal main time base 1s used to display the wave form Window Setup to A window area 1s defined by two cursors Window The defined window area for display 1s Expansion expanded to the full screen oe 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 18 shown as Fig 23 iy d M Pos 0 000ns Zone Window CHi 104 CHZ 50 0mu H 500us CH1 400nu Fig 23 Main Time Base _ 28 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 24 inig 4 M Pos 0 000ns U 0 000ns fr Main KE EEE EE vs Window Zone De EN EE SE eee ar ole Qi 12 Window CH1 10v CHZ 50 Dnu MH 500us N 20 us CH1 400mu Fig 24 Window Setting _29 Window Expansion 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 25 TTT M Pos 0 000ns J 0 000ns TIME MODE Main TimeBase
13. 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 AN Warn 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 ie Appendix D Battery Using Guide 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 oscilloscope should be turned on during charging to oscilloscope The battery can supply power for 4 hours after being charged completely There will have power indication show on the top of panel when oscilloscope power supplied by the battery R N and 0 imply for different power consumption and when U 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 usuall
14. knobs of Channel 2 are used to set the vertical scale and position continuously 43 The following functions can not work in the XY Format E Reference or digital wave form E Cursor R Auto set E Time base control E Trigger control Operation steps l 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 41 Irin Al M Pos 0 000n5 wid pte BOA min KUR Me oon ee 4 KE Je GN Ola eh wee ele Oke Vec t ors Persist Infinite Format Carry CHI 100 CHZ 1 004 H 500ns CHZ 80 0mu Fig 41 XY Display Mode _ 44 How to Save and Recall a Wave Form Press the SAVE REL button you can save and call out the wave forms in the instrument The menu displayed in the screen 1s shown as Fig 42 WAVE CA WAVE SAVE CH1 Fig 42 Wave Form Save Menu The description of the Wave Form Save Menu 1s shown as the following table Setting Source CH Choose the wave form to be saved CH2 MATH C D waveform is saved or can be get access to selected address CHA OFF Switch on or off the display of the stored _45 Save and Recall the Wave Form The PeakTech oscilloscope can store four wave forms which can be displayed with the current wave form at the same time The stored wave form called out can not be adjusted In order to save the wave form of the cha
15. 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 10X shown as Fig 4 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 10 Probe comp CH1 Fig 5 Connection of the Probe 3 Press the AUTOSET Button The square wave of 1 KHz frequency and 5V peak peak value will be displayed in several seconds see Fig 6 frig d M Pos 0 000ns r Slope Rising ee oe Source CH1 Auto Coupling DC CHi 2 000 CHZ 50 0mu M 500us 7 CHi 2 480 Fig 6 Autoset Check CH2 by repeating Step 2 and Step 3 11 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 1 Set the attenuation coefficient of the probe in the menu as 10X and that of the switch in the probe as 10X and c
16. of a television apply the video tngger and obtain the stable ee video output signal display Video Field Trigger For the trigger in the video field carry out operations according to the following steps L 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 Normal for Polarity Press the F3 menu selection button and choose CH1 for Source Press the F4 menu selection button and choose Field for Sync SS a D Adjust the VOLTS DIV VERTICAL POSITION and SEC DIV knobs to obtain a proper wave form display see Fig 59 TITT H Pos 280 0us TRIG NODE Type Video Polarity Normal Source CH1 Sync Field CHL 5v OHE 20v K 200us 7 CH1 All CH1 0 72divs 3 60v Fig 59 Wave Form Obtained from Video Field Trigger Video Line Trigger For the trigger in the video line please operate according to the following steps 1 Push down the TRIG MENU button to display the trigger menu 2 Press the F1 menu selection button and choose Video 3 Press the F2 menu selection button and choose Normal for Polarity 64 Press the F3 menu selection button and choose CH1 for Source Press the F4 menu selection button and choose Line for Sync Adjust the VOLTS DIV VERTICAL POSITION and SEC DIV knobs to obtain the proper wave form display see Fig 60 Griy d M Pos 0 000ns TRIG MODE 8 4 FEN n HH a a H E
17. the probe used in practical application 4 There is wave form displayed but it is not stable amp Check whether the Source item in the TRIG MODE menu is in conformity with the signal channel used in the practical application amp 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 is 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 with the AUTOSET button pressed the setting above can be completed automatically After the AVERAGE value sampling is set in the ACQU MODE or the a longer duration is set in the DISP MODE the display rate is slowed down It is anormal phenomenon 66 Appendix A Technical Specifications Unless otherwise specified the technical specifications applied are applicable to the probe with the attenuation switch setting 10X Only if the oscilloscope fulfill the following two conditions at first can these specification standards be reached
18. 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 freely Product Grounding 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 erounded correctly before any connection with its input or output terminal 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 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 specified 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
19. OSITION Os DISPLAY FORMAT YT Vertical ACQUIRE MODE SAMPLE Trigger CH1 Z0u CH2 50 0mu H 500us CH1 0 00nu Fig 47 Horizontal System State 49 How to Conduct the Automatic Measurement With the Measure button pressed down an automatic measurement can be implemented There are 5 types of measurements and 4 measurement results can be displayed simultaneously 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 Cycle Mean PK PK RMS and None The menu 15 displayed as Fig 48 MEASURE MEASURE Source Type CH1 Reading Fig 48 Measure Menu Measure Four automatic measured values can be shown one time at maximum for the wave form of each channel Only if the wave form channel is in the ON state can the measurement be carried out No automatic measurement can be made for the saved or the mathematically manipulated wave form or in the XY or Scan format Measure the frequency the peak to peak value of the Channel CH1 and the mean the 50 RMS of the Channel CH2 according the following steps l Press the Fl 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 t
20. Scale Factor Voltage Division it can be found that the scale factor of the channel corresponding to the status bar has been changed accordingly amp 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 16 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 POSTON bORITOR TEL Hikt 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 5ns up to 5s in the sequence of 1 2 5 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 1t can be observed that the wave form moves horizontally with the knob when you rotate the Horizontal P
21. Source CH1 Ko Er Kor T 8 HR HH H LT HH H H H T NE OM Ti Sync EE RE EO SE T E EE Line CH1 Su CHZ 200 M 20 us Ar CH1 All Fig 32 Wave Form Triggered in the Video Line se How to Operate the Function Menu The function menu control zone includes 6 function menu buttons and 3 immediate execution buttons SAVE REL MEASURE ACQUIRE UTILITY CURSOR DISPLAY AUTOSET RUN STOP and HARDCOPY How to Implement Sampling Setup Press the ACQUIRE button and the menu is displayed in the screen shown as Fig 33 ACQU MODE Fig 33 ACQU MODE Menu The description of the Sampling Setup Menu is shown as follows Setting Sampling General sampling mode Peak Detection It is used for the detection of the jamming burr and the 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 Choose the number of averages 128 38 Change the ACQU Mode settings and observe the consequent variation of the wave form displayed M Pos 280 0us CH1 1 34y Fig 34 Peak Detect mode under which the burrs on the falling edge of the square wave can be detected and the noise 1s heavy 39 Irig d M Pos 280 0us DIT Detect ddr diet dundee ends aa Averages 16 CH1 S00mu CHZ 200 M 500u5 CH1 1 34v Fig 35 Common ACQU Mode display in which no burr can be detected vig d I M Pos 280 0us ACOU
22. T button with the oscilloscope turning on the signals of the two channels and displaying them in the screen 5 Adjust the VOLTS DIV knob making the amplitudes of two signals equal in the rough _ 62 6 Push down the DISPLAY button and recall the DISP SET menu 7 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 8 Adjust the VOLTS DIV and VERTICAL POSITION knobs optimizing the wave form 9 With the elliptical oscillogram method adopted observe and calculate the phase difference see Fig 58 The signal must be centered and kept in the horizontal direction Fig 58 Lissajous Graph Based on the expression sing 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 12 or 37 2 2x 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 x 2 x or 7 37 2 Example 6 Video Signal Trigger Observe the video circuit
23. d N Fos 8 000ns T HU L SET Dk PP EE H H N H HD HD D TD T H H Carry Bitmap CHi 2 004 CHZ 20 0nu H Z00us Ni CH1 640mu Fig 39 Display in Dots form A Persist When the Persist function is used the persistence display effect of the picture tube oscilloscope can be simulated the reserved orginal data 1s displayed in fade color and the new data is in bnght color With the F2 menu selection button different persistence time can be chosen Isec 2sec S5sec Infinite and Closed When the Infinite option is set for Persist time the measuring points will be stored till the controlling value 18 changed see Fig 40 TT H Pos 0 000ns_ DISP SET ee a Infinite Mr Format YT Carry Bitmap I CH1 500mu CH2 20 0mu M500us d CH1 AI ng ng hl Fig 40 Infinite Persistence Display AY Format This format 18 only applicable to Channel I 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 used to set the horizontal scale and position E The Vertical VOLTS DIV and the Vertical POSITION
24. d Video Tngger Each tngger mode uses different function menu The switching between two modes can be implemented by pressing the F1 menu selection button 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 27 Fig 27 Edge Trigger Menu AN The Edge Trigger Menu is described as below Setting Slope Rising Set a trigger on the rising edge of the signal Falling Set a trigger on the falling edge of the signal Source CH Set Channel 1 as the trigger signal of the source CH2 Set Channel 2 as the trigger signal of the source EXT Set the external trigger channel as the trigger signal of the source EXT S Divide the External Trigger Source by 5 to expand the external trigger level range Mode Collect the wave form even if there is not trigger condition is detected Collect the wave form only when the trigger condition is fulfilled Collect a wave form when a trigger is detected then stop sampling Coupling Block the direct current component Unblock all compone
25. ect 1X for the probe The Figure 17 illustrates the setting and the vertical scale factor when the probe of the attenuation coefficient of 1 1 1s used irigy d M Pos 0 000ns CH1 d ETUP Coupling JE EE TE ITEE AC Channel ON Lnverted ee EE EE E OFF CH1 2 0007 CHZ 50 0myu H 500us CH1 2 480 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 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 F4 menu selection button and select ON in the Lnverted The wave form inverted function 1s initiated 3 Press the F4 menu selection button again and select OFF for Lnverted item The function of wave form inverted 1s closed off For the screen display see Fig 18 and Fig 19 a ae bog M Pos 0 000ns 00 CH1 SETUP a EN ee DC Channel ON Probe 1 X Lnverted OFF CH1 2 000 CH2 50 0mu M 200us CHI 2 48u Fig 18 Wave Form not Inverted iy A M Pos 0 000ns CH1 SETUP Coupling Channel ON Probe 13 a EE a es ee 3 I 1X 2 3
26. emperature 1s up to or exceeds 3 C 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 46 an rT SYS STAT Fig 46 SYS STAT Menu 48 The SYS STAT menu is described as the following table Horizontal i Show the horizontal parameter of the channel Vertical Show the vertical parameter of the channel Trigger Show the parameters of the trigger system Mise Adjust the Date and Time 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 47 Irig 0 M Pos 0 000ns SYS STAT HORIZONTAL SYSTEM STATUS Horizontal TIME BASE MAIN TIME BASE SE MAIN SCALE 500us WINDOW SCALE 25 us MAIN POSITION 0 000ns WINDOW P
27. enu selection button to choose the option Do Self Cal finally run the program after confirming that everything is ready now _15 Introduction to the Vertical System Shown as Fig 11 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 amp Rotate the vertical VOLTS DIV knob and change the Vertical
28. er 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 aS x 8 Press the F3 menu selection button and choose Pk Pk 10 Read the peak to peak values of Channel 1 and Channel 2 from the displayed menu see Fig 54 11 Calculate the amplifier gain with the following formulas Gain Output Signal Input signal Gain db 20xlog gain yr ig A M Pos 0 000n5 Source Type CH1 PK PK 5 5191 0 CHZ PK PK GA 00y CH1 Mean O60m CH PK PK 52 000 CH1 207 CHZ 2007 N 500us Va CH1 0 00mu Fig 54 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 a particular prion 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 J the rising edge trigger If it is uncertain as to the signal you can make an observation of it in advance under t
29. he F1 menu selection button and choose Type Press the F2 menu selection button and choose Freq Press the F3 menu selection button and choose Pk Pk ee Pt Sy Be owe oe Press the F4 menu selection button and choose Mean 10 Press the F5 menu selection button and choose Cyc RMS The measured value will be displayed in the reading window automatically see Fig 493 Irig d M Pos 0 000ns MEASURE Source Type bipi Freq 1682KH2 CH1 PK PK SV 00u LHZ Mean 240 0m0 LHZ Cyc RMS 622y CHi 200 CH2 2 00v N S00us CHL 24 0u CH1 1 04 divs 20 80v Fig 49 Automatic Measurement _5 How to Carry on the Cursor Measurement Press the CURSOR button to display the cursor measurement function menu CURS MEAS in the screen which includes Voltage Measurement and Time Measurement shown as Fig 50 CURS MEAS ent CURS MEAS CH1 Fig 30 CURS MEAS Menu The description of the cursor measurement menu is shown as the following table Setting Type Switch off the cursor measurement Display the voltage measurement cursor and menu Show time measures the cursor and menu which the cursor measurement will be applied Read the difference between cursors Read the position of Cursor 1 the Time is read with reference to the horizontal trigger position and the Voltage is to the ground point Cursor I Read the position of Cursor 1 the Time 1s read with reference to the horizo
30. he automatic or ordinary mode to determine the trigger level and the trigger edge The operation steps are as follows l ees R YM SS Ff 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 Press 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 F2 menu selection button and choose Rising as the slope 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 than the normal signal level and then push down the RUN STOP button and wait When there is a burr occurring the instrument
31. ig 9 T x Fig 9 Attenuation Switch A Note When the attenuation switch is set to 1X the T5100 probe will limit the bandwidth of the oscilloscope in SMHz If 1t 18 needed to use the whole bandwidth of the oscilloscope the switch must be set to 10X 213 How to Use the Probe Safely The safety guard ring around the probe body protects your finger against the electric shock shown as Fig 10 A Fig 10 Finger Guard AN Warning In order to avoid suffering from the electric shock please keep vour 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 14 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 UTILITY button to call out the FUNCTION menu push down the F3 m
32. ints for each channel Sampling rates of 250MS s for each channel Reading out with the cursor Five automatic measurement functions 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 Implementation of detecting the average and peak values of the waveform Digital real time oscilloscope Edge and video triggering function USB communication ports Different continuous displaying time User interface in two languages for the user s choice SEN EIR CL p r ER 5 HO 3 4 a K 2 L I D Fig 1 The Front Panel Function Buttons Bb To ar T ZAPEL Fuko TEF L_ UTLITY C WOLTED W SE DV rer TRE Hi RU L 9 i 00000 i s LS v R p AN ia a mE E Haris COU P CH1 CH ExTTRIG FORCE TRIM fl O O O LC v ILA es SSS ae aS Back light Adjustment Vertical Control Connector Horizontal Trigger Menu Selection Control Control Fig 2 Explanatory Drawing for Operations EB I 3 4 5 6 M Pos 0 000ns W 0 000ns m Fig 3 Illustrative Drawing of Display Interfaces l 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 oscillosc
33. mean and peak to peak value 1 Press the MEASURE button to show the automatic measurement function menu 2 Press the F1 menu selection button and choose Source with the Source menu displayed 3 Press the F2 F3 F4 and FS menu selection buttons and choose CH1 4 Press the F1 menu selection button again and choose Type with the Type menu displayed 5 Press the F2 menu selection button and choose Freq 6 Press the F3 menu selection button and choose Period 7 Press the F4 menu selection button and choose Mean 8 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 53 56 ASUR E irig d M Pos 0 000ns Source Type pec 0 woe i l CHi i Freq Oe ol ed OE v ale con on we ol a CHi Period D s 121 STL a Ea a Mean OFF CHZ PK PK OFF CH1 104 CHZ 50 0mu H 500us CH1 400mny Fig 53 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 k mO Me AGE Push down the AUTOSET button and the oscilloscope will automatically adjust the waveforms ofthe two channels into the prop
34. ng 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 CH1 SETUP Fig 14 Channel Setting Menu 19 The description of the Channel Menu is shown as the following list following form Setting Coupling AC Block the AC component in the input signal Me Unblock the AC and DC components in the input signal OO oN opna Open the measuring channel Choose according to the probe attenuation v to make the vertical scale reading accurate Lnverted OFF The wave form is displayed normally ON Initiate the wave form inverted function 1 Setting Channel Coupling Taking the Channel 1 for example the measured signal is a square wave signal containing the direct current bias The operation steps are shown as below 1 Press the CH1 MENU button and call out the CH1 SETUP menu 2 Press the 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 de and ac components in the signal will be unblocked The wave forms are shown as Fig 15 and Fig 16
35. nnel 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 for Wave 3 Press the F3 menu selection button and save the wave form 4 Press the F4 menu selection button and choose ON for CHA The stored wave form 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 43 ee TIPO M Pos 0 000ns WAVE SAVE Save 20v 500us Sourec E a nN EEC A a aG T T elie nat ey eat op CH1 CH1 200 CHZ 50 0mu M 500us 7 CHL 0 00mu CH1 1 60 divs 32 00v Fig 43 Wave Saving T How to Carry on the Auxiliary System Function Setting Press the UNTILITY button and the menu is displayed in the screen as Fig 45 Fig 45 Function Menu The description of the Auxiliary Function Menu 1s shown as the following table System Status __ Display the system function menu Recall Factory l Call out the factory settings Do Self Cal l Carry out the self calibration procedure Language Chinese Choose the display language of the ENGLISH operating system _47 Do Self Cal Self Calibration The self calibration procedure can improve the accuracy of the oscilloscope under the ambient temperature to the greatest extent Ifthe change of the ambient t
36. noise contained in 1t For the reduction of the random noise in the oscilloscope display please operate the instrument according to the following step l 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 nsing and falling edges appears see Fig 57 61 lr ig a Pos 280 0us Fo ek dek d ae Peak Detect CHI 500mu CHZ 200 M 500us CHi 1 34u Fig 57 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 2 Connect the probe of channel 1 to the input of the network and that of Channel 2 to the output of the network 3 Push down the AUTOSE
37. ntal trigger position and the Voltage 1s to the ground point 52 Cursor Measurement 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 voltage cursor measurement of the channel CH1 l 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 indicating CURSOR1 and CURSOR2 3 Press the F2 menu selection button and choose CH1 for Source 4 Adjust the positions of CURSOR1 and CURSOR according to the measured wave form with the absolute value of the voltage amplitude difference between Cursor 1 and Cursor 2 displayed in the increment window The current position of Cursorl 1s displayed in the Cursor window and that of Cursor2 1s displayed in the Cursor2 window see Fig 51 NTT M Pos 0 000ns CURS MEAS Type Voltage Source CH1 Delta 114 16 o0 Cursor 1 AA 40u Cursor 2 723 60v CH1 10v CHZ 50 0nmu H 500us CH1 400mu Fig 51 Wave Form of Voltage Cursor Measurement 53 Carry out the following operation steps for the time cursor measurement of the channel CH1 l Press CURSOR and recall the CURS MEAS menu
38. nts Block the high frequency signal and only unblock the high frequency component Block the low frequency signal and only unblock the low frequency component Make such settings in Channel 1 as Rising for Slop Auto for Mode and DC for Coupling The operation steps are as follows 1 Press the TRIG MENU button and call out the trigger menu Press the F1 menu selection button and select Edge for Type Press the F2 menu selection button and select Rising for Slope 2 3 4 Press the F3 menu selection button and choose CH1 for Source 5 Press the F4 menu selection button and choose Auto for Mode 6 Press the F5 menu selection button and choose AC for Coupling The display in the screen is as Fig 28 7 Press the F2 menu selection button again and choose Falling for Slope For the screen display see Fig 29 33 11 nm Pos 0 000ns TRIG MODE Auto Coupling DC CHI 10v CH2 50 0mv C 7 Hi 400m0 CH1 0 00 divs 0 0mv a Fig 28 Wave Form Triggered on the Rising Edge 0 000ns rig M Pos J nnn 7 Hr alling Source CH1 Mode Auto Coupling AC CH1 100 CHZ 50 0mu M 50008 Ny CHL 400m0 Fig 29 Wave Form Triggered on the Falling Edge 34 Video Trigger After choosing Video Trigger a trigger 18 possible in field or line of NTSC PAL or SECAM standard video signal The operation menu of Video Trigger is shown as Fig 30 Fig
39. on of the equipment to the mains outlet check that the available mains voltage corresponds to the voltage setting of the equipment Connect the mains plug of the equipment only to a mains outlet with earth connection Do not place the equipment on damp or wet surfaces Do not cover the ventilation slots of the cabinet to ensure that the air is able to circulate freely inside Do not insert metal objects into the equipment by way of the ventilation slots Do not place water filled containers on the equipment danger of short circuit in case of knock over of the container Do not exceed the maximum permissible input ratings danger of serious injury and or destruction of the equipment The meter is designed to withstand the stated max voltages If it is not possible to exclude without that impulses transients disturbance or for other reasons these voltages are exceeded a suitable presale 10 1 must be used Replace a defective fuse only with a fuse of the original rating Never short circuit fuse or fuse holding Disconnect test leads or probe from the measuring circuit before switching modes or functions Do not conduct voltage measurements with the test leads connected to the mA A and COM terminal of the equipment The 20A range is protected To avoid damage or injury use the meter only in circuits limited by fuse or circuit breaker to 20A or 4000VA To avoid electric shock disconnect power to the unit under
40. onnect 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 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 wave forms and regulate the probe till a correct compensation is achieved see Fig 7 and Fig 8 Overcompensated Compensated correctly Under compensated Fig 7 Displayed Wave Forms of the Probe Compensation 3 Repeat the steps mentioned if necessary Fig 8 Adjust Probe ea 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 18 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 AN Note The attenuation coefficient of the probe in the menu 18 preset to 10X when the oscilloscope is delivered from the factory Make sure that the set value of the attenuation switch in the T5100 probe is the same as the menu selection of the probe in the oscilloscope N The set values of the probe switch are 1X and 10X see F
41. ope 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 2 Waveform Viewing Area 3 The purple pointer indicates the horizontal trigger position which can be adjusted by the horizontal position control knob 4 The reading shows the time deviation between the horizontal trigger position and the screen centre line which equals 0 in the screen center 5 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 6 Itindicates the current function menu 10 EL 12 13 14 15 16 17 18 19 20 ZL 22 It indicates the operation options for the current function menu which changes with the function menus The purple pointer shows the trigger level position The reading shows the trigger level value The reading shows the trigger source It shows the selected trigger type I Rising edge triggering Falling edge triggering a Video line synchronous triggering wil Video field synchronous triggering The reading shows the window time base set value The reading shows the main time base se
42. osition knob 3 With the HORIZONTAL MENU button pushed down you can set and initiate the Window Expansion B 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 TRIG VIEW button is used to reset the trigger horizontal position 18 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 VERTICAL POSITION VOLTS DIV one group for each of the two channels Setti
43. p state the vertical division and the horizontal time base of the wave form can be adjusted within a certain 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 HARDCOPY Press the HARDCOPY button and the oscilloscope will transmit the current screen display to the computer connected with it The receiving software should be installed in the superior computer which should be connected the through the RS232 interface 25 e Examples of Application 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 AUTPSET to make the wave form 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
44. place the battery as soon as the battery indicator BAT appears With a low battery the meter might produce false reading that can lead to electric shock and personal injury Fetch out the battery when the meter will not be used for long period Periodically wipe the cabinet with a damp cloth and mid detergent Do not use abrasives or solvents The meter is suitable for indoor use only Do not operate the meter before the cabinet has been closed and screwed safely as terminal can carry voltage Do not store the meter in a place of explosive inflammable substances Do not modify the equipment in any way Do not place the equipment face down on any table or work bench to prevent damaging the controls at the front Opening the equipment and service and repair work must only be performed by qualified service personnel Measuring instruments don t belong to children hands 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 Use the proper power line Only use the power cord specially provided for this product or that has been approved to be used in this user state Connect or
45. 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 Keep the products surface clean and dry eee Safety Terms and Symbols Terms in this manual The following terms may appear in this manual A Warning A warning statement indicates the conditions and actions which may endanger the life safety A 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 property Symbols on the products The following symbol may appear on the products A A m High Voltage Please Consult the Manual Protective Ground End Grounding End for Measurement Earth End on the Shell General Characteristics of the Peak Tech 1200 Colour Digital Storage Oscilloscope With the bandwidth of 25M Record length of 6 000 po
46. t value The two yellow dotted lines indicate the size of the viewing expanded window The icon shows the coupling mode of the CH2 channel indicates the direct current coupling ce indicates the AC coupling The reading shows the vertical scale factor the Voltage Division of the CH2 channel The icon indicates the coupling mode of the CH1 channel The icon indicates the direct current coupling The icon indicates the AC coupling The reading indicates the vertical scale factor the Voltage Division of the CH1 channel The information shows the zero point positions of CH1 or CH2 channel The yellow pointer shows the grounding datum point zero point position of the waveform of the CH2 channel If the pointer is not displayed 1t shows that this channel is not opened 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 The positions of two purple dotted line cursors measurements How to Carry on the General Inspection After you get anew 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 de
47. test and discharge all capacitors before taking any resistance measurements Do not conduct current measurements with the leads connected to the V Q terminals of the equipment Check test leads and probes for faulty insulation or bare wires before connection to the equipment To avoid electric shock do not operate this product in wet or damp conditions Conduct measuring works only in dry clothing and rubber shoes 1 e on isolating mats Never touch the tips of the test leads or probe Comply with the warning labels and other info on the equipment The measurement instrument is not to be to operated unattended Always start with the highest measuring range when measuring unknown values Do not subject the equipment to direct sunlight or extreme temperatures humidity or dampness Do not subject the equipment to shocks or strong vibrations Do not operate the equipment near strong magnetic fields motors transformers etc Keep hot soldering irons or guns away from the equipment Allow the equipment to stabilize at room temperature before taking up measurement important for exact measurements Do not input values over the maximum range of each measurement to avoid damages of the meter Do not turn the rotary function switch during voltage or current measurement otherwise the meter could be damaged Use caution when working with voltages above 35V DC or 25V AC These Voltages pose shock hazard Re
48. tic 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 1s adjusted the screen shows the information concerning the vertical position at the lower left corner see Fig 21 1157 M Pos 0 000ns MEASURE Source Type Z T E Z GE ET TE EE CHi Freq 1 168KHZ CH1 PK PK 51 36v CH1 200 PHZ 5O Omyu M 500us CHi 24 80 CH1 1 00 divs 20 00v _ Fig 21 Information about Vertical Position Gs How to Set the Horizontal system The HORIZONTAL CONTROLS includes the HORIZONTAL NENU 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 2 SEC DIV knob it is used to set the horizontal scale factor for setting the main time base or the window 3 HORIZONTAL NENU button with this button pushed down the screen shows the operating menu see Fig 22 Fig 22 Time Base
49. vice 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 PeakTech responsible for this service or the PeakTech 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 Peak Tech distributor responsible for this business or the PeakTech local offices If there is damage to the instrument caused by the transportation please keep the package With the transportation department or the PeakTech distributor responsible for this business informed about it a repairing or replacement of the instrument will be arranged by the PeakTech How to Carry on 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
50. 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 55 59 STOF M Pos 0 000ns Slope Rising Source CH1 Single Coupling DC CH1 Zu CH2 1 000 M 1 0ms CH1 256my Fig 55 Capture the Single Signal 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 56 60 irigy d M Pos 280 0us Sample Peak Detect Average Averages 16 CH1 SO0my CHZ 200 H 500us CH1 1 34y Fig 56 Wave Form of the Signal Containing Noises Separate Noises from the Signal When analyze the wave form of a signal you should remove the
51. y 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 All rights also for translation reprinting and copy of this manual or parts are reserved Reproduction of all kinds photocopy microfilm or other only by written permission of the publisher This manual considers the latest technical knowing Technical changings which are in the interest of progress reserved We herewith confirm that the units are calibrated by the factory according to the specifications as per the technical specifications We recommend to calibrate the unit again after year PeakTech 02 2008 Th
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