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UTD2000M 英文说明书黑白图片.cdr

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1. Picture 1 2 Front Board of the Oscilloscope UTD2000M User Manual EIEIO 2 S nE 25 P s e UTD2000M User Manual Please follow the steps as follows to operate the menu system 1 Press the menu function key of the front board to show the menu you need to use 2 Press keys from F1 to F5 on the right side of the screen to choose the menu options Press keys from F1 to F5 On the right side of the screen again to choose if the menu option include many choices 3 Some menu options need setting numeric value or multi optionto complete the setting you can set and choice by regulating the multipurpose knob Instructions for the front board MEASURE perform the automatic waveform measurement ACQUIRE set the sample acquiring method of oscilloscope STORAGE to restore into or draw out waveform from the memory or USB CURSOR to activate the sursor and operate the manual sursor measurement DISPLAY set the waveform format and type UTILITY activation system tools such as system setting HORIZONTAL MENU set window extension and trigger hold off TRIGGER MENU regulate part of trigge
2. Form 2 16 Reference waveform storage menu Function menu Setting Instrucition Toes Reference Choose waveform on the waveform screen displayed by the signal CH1 The chosen waveform from Information channel CH1 Source CH2 The chosen waveform from channel CH2 Store reference waveform into the inner storage area of store the machine and to choose 1 10 the storage positon with knob MULTIPURPOSE and press it to confirm Output Form 2 17 Enter into USB menu 43 Form 2 16 Reference waveform derived USB menu Function menu Setting Instrucition that output into USB with knob UTD2000M User Manual and itis a group of 2D data reflecting relation between voltage and time 2 Choose setting to enter into it to setting storage Bile iene MULTIPURPOSE and F1 key menu as shown in form 2 18 Format CSV inner Referred to notes Form 2 18 Setting storage memu After confirmation backto Function menu Setting Instrucition reference waveform storage T Setti To store the present menu and output into USB ypes Sng boardsetting status of the if there is or indications such oscilloscope confirmation as the function cannot work To store the setting into the and please plug in USB will machine inner storage area Store 1 10 d select st iti occur on the left lower part of ang sole Gr storage position Screen with knob MULTIPURPOS
3. 53 Form 2 28 Auxiliary Function Menus 2 Form 2 29 Pass Testing 1 UTD2000M User Manual Notes Frequency meter is the meter for trigger event frequency in the trigger channel The frequency meter shall be effective when the trigger type being edge or pulse width but the vedio type and shall not be used for the alternative in trigger source 54 Function menu Setting Instrucition Function menu Setting Instrucition E Display on the right Permit testing Close Open the Pass Fail requency Close open topcorner of screen Open testing meter when open it in Confirm input conditions eee the notes Input Pass for Pass Fail port on the z et conditions in Fail back of buzzer and AUTO Strategy rotln 2 38 using AUTO oscilloscope Close menu option on Information CH1 Select information the right side of screen source CH2 source being selected Close menu with shortcut key Select if displavin HO Display Open elect if displaying Menu Off On statistic information on information Close Obove page Back to the above page the screen Next page Enter into next page UTD2000M User Manual Form 2 30 Pass Testing 2 Function menu Setting Instrucition Stop Operate operate Stop Pass Failjudgement Restart Pass Failjudgement and statistics Form Stop setting 2 31 Set a threshold value and judgementcondition for pass
4. Diagram 3 33 Vedio Hotizontal Trigger UTD2000M User Manual Example 7 Store data into USB flash disks Needed to work in a faraway place to use oscilloscope to observe waveforms and hope to bring information back to office to complete reports and make other analysis the USB flash disk shall be used to store the data Store screen pictures Two methods are provided for storing pictures displayed on oscilloscope screen into USB 1 Please operate under the next steps if you want to store pictures fastly into USB 1 1 Plug USB into the USB HOST port of oscilloscope front board 1 2 Press key PrScrnion the top part of screen to display the storage progress bar below the waveform display area after storage the screen picture shall be stored into usb root catalogues with the name of DSOx BMP 2 In order to recognize the stored pictures and images easily and to set descriptive names for each picture please operate under the next steps 2 1 Plug USB into the USB HOST port of oscilloscope front board 2 2 Press key STORAGE and F1 to select bitmap with the knob MULTIPURPOSE 2 3 Press confirmation key F3 in the bitmap storage menu to enter into USB menu 2 4 Press key F1jand use knob MULTIPURPOSE to store the file name and press key F5 to confirm and the screen pictures shall be stored in the USB root catalogues with the set name 71 72
5. Automatic setting for the waveform display The UTD2000M digital storage oscilloscope possesses theautomatic setting function and will based on the input signal automatically adjust the vertical scale coefficiency scanning time base and the trigger mode until there is proper waveform display It is required that frequency of the signal being checked shall be bigger than or equivalent to 40Hz and the duty ratio bigger than 1 when use the self configuration UTD2000M User Manual Use the automatic setting 1 Connect the signal being checked with the signal input channel 2 Press the key AUTO the oscilloscope will automatically set the vertical scale coefficiency scanning time base and the trigger methds If the further observation is need you can operate with manual setting after the completion of automatic setting until the waveform display have reached the needed perfect effect Regulate time and date of the oscilloscope Please follow the steps as follows to regulate the present time and date of the oscilloscope 1 Press function key UTILITY 2 Press the key F1 to enters the option System Configuration 3 Press the key F4 in the system configuration menu to choose the option Time Setting and to set the date and time with the key of the side menu and the multi funcition knob UTD2000M User Manual 4 Press Confirm to restore the set da
6. If the waveform were shown Over Compensation orUnder Compensation coordinate the adjustable electric capacity of the probe with the non metal manualle adjusting pen until the waveform as the above picture Correct compensation were appeared on the screen Warning to guard against the electric shock in measuring the high voltage with the probe please make sure that the insulated conductor of probe is intact and do not touch the metal part of the probe when connecting with the high voltage source Notes The probe will limit bandwidth of the oscilloscope to 6MHz when the probe attenuation switch setting is 1x Whole bandwidth of the oscilloscope should be in use and make sure the swith setting is 10x Operate the self tuning program The instrument shall reach the maximum measurement accuracy by operating the self tuning program You can operate the program any time while it is necessary to Operate the self tuning program when the environment temperature variation is up to or more than 5 C Please follow steps as follows if operate the self tuning program 1 Disconnect all probes or cables with the channel input connector 2 Press function key UTILITY 3 Press the key F1 to choose the option System Configuration on the right side of the screen 4 Press the key F1 to chooses the function Self tuning 5 Press the multipurpose knob key to confirm to operate the self tuning which will need several minutes
7. REF POSITION VOLTS DIV E Set the horizontal system MENU POSITION SEC DIV Set the trigger system TRIGGER MENU FORCE SINGLE HORIZONTAL E Set the sampling mode ACQUIRE E Set the displaying mode DISPLAY E Storage and draw out STORAGE E Auxiliary system setting UTILITY E Automatic measuring MEASURE E Cursor measuring CURSOR E Automatic measuring run stop key AUTO Ww RUN STOP E Multipurpose knob MULTIPURPOSE You are recommended to read through the chapter carefully to know more details about varied measurement functions and system operation methods of the UTD2000M digital oscilloscope Waveform brightness setting You can regulate the waveform brightness by opening CH1or CH2 to use the multipurpose knob Compared with the common digital oscilloscope the UTD2000M digital oscilloscope can control the waveform brightness All waveform point shall be high brightness when maximum brightness is set and brightness in the waveform shall change with the degrees when the brightness is down Set the vertical system CH1 and CH2 channel and its setting Each channel has independent vertical menu and each item shall be set in the different channel Pressing function key CH1 and UTD2000M User Ma
8. When detecting the trigger the instrument shall continuously collect enough data to draw waveform on the right of the trigger point Trigger control area of the UTD2000M digital storage oscilloscope operation board concludes trigger level knob HORIZONTAL trigger menu key MENU force trigge key FORCE and single trigger key SINGLE Trigger level knob HORIZONTAL To regulate the trigger level with Level control of the Trigger part in changing the trigger level a horizontal line temporarily appeared on the screen shall display the level Trigger level sign would bea small arrow if the line disappears Trigger level could be set as 50 amplitude level of the trigger source waveform by Pressing knob 29 30 HORIZONTAL Force trigger Pressing the key FORCE force trigger will produce an immediate trigger event The function applies to the following If the waveform could not be seen on the screen in using the normal trigger mode normal press the key FORCE force trigger to collect signal baseline and confirm the normality of collection Press key single to set the single trigger and press key FORCE force trigger to conduct a test collecting to confirm the control setting Trigger control menu MENU Trigger types edge pulse width vedio and slope Edge trigger set the signal to produce trigger at the risingor fallingedge To change trigger point vertical post
9. dialogue box Choose one of the storage waveform with the konb MULTIPURPOSE and press it to confirm Set horizontal system Horizontal control Changing horizontal scale time base and horizontal position trigger position in the trigger memory with the horizontal control knob the waveform relative screen center could be expanded or extracted by changing the horizontal scale and the horizontal position shift is namely the position shift relative to the waveform trigger point Horizontal position regulate the horizontal position of the 27 UTD2000M User Manual channel waveform including mathematic Form 2 7 horizontal menu instruction operation The control key s resolution shall change with the puneton wenu Seting mstileted time base Horizontal scale regulate the main time Main Window Press FL reunite mai base namely SEC DIV when the extension time window base is opened window width could be changed by Extension n Press F3 return to changing horizontal scale knob to change delay Window extension window scanning time base Load off Time 100 0000ns Regulate load off time 2 Horizontal control knobs knob SCALE can be 1 5000s with MULTIPURPOSE used to change the horizontal time base scale Estension Window and the horizontal shift knob POSITION used to Extension window could be used to magnify a section change the relative position of trigger point in of waveform and to check the
10. used for measuring CH2 as shown in picture 2 21 Notes in measuring advanced parameter the selected advanced parameter can t be deleted individually and only be deleted from screen by Delete Measurement option UTD2000M User Manual MEASJRE Sustom Irdicarars ANE MEAS Picture 2 24 alter single setting parameter 2 onan meaa Automatic measurement of Voltage parameter COvershoot Vmax Vtop Vamp Vpp Vbase Vmin Preshoot Picture 2 23 Alter single setting parameter 1 Picture 2 25 Voltage Parameter Diagram 49 50 UTD2000M eries could automatically measure the follong voltage parameters Vpp the voltage value from the highest point to the lowest of the waveform Vmax voltage value from the highest point of waveform to GND ground Vmin voltage value from the lowest point to GND ground Vamp voltage value from top to base Vmid half of the sum of top waveform votage value Vtop voltage value from top to GND ground Vbase voltage value from base of waveform to GND ground Over shoot ratio of the difference between waveform maximum value and top value to the amplitude Preshoot ratio of the difference between waveform minimum value and base value to the amplitude Average average value of signal in a period Vrms namely the effective value The produced UTD2000M User Manual energy according to conversion of AC signal in a pe
11. Fail menu and press F2 to set Pass Fail port on the back of oscilloscope and the output judgement conditions of the buzzer Start testing in the Pass Fail menu press F1 to open test status as shownin 3 13 5 Press F4 to set the display of information about the judgement results 6 Press F5 to enter into the second page of test menu and press F2 to enter into stop setting menu press F1 F2 key to set stop types and stop conditions and set the threshold value with knob MULTIPURPOSE and after that to press F5 to back to test menu as shown in 3 14 7 Press F1 to start passing test and press F1 when start it and stop it with manual operation Notes Pass fail statistics shall be calculated again after each stop as shown in 3 15 Pass test diagram 73 UTD2000M User Manual korm IEI EEN Disp ay Info aticn diagram 3 15 Operation Stop Setting Template Settings Previous Edze CHI Auto AC _0 00nV diagram 3 14 74 UTD2000M User Manual ChapterlV System Tips and Trouble Shooting Instruction about the system tips Regulation reaches the limit in present status the regulation of multipurpose knob has reached the limit and cannot be regulated anymore USB equipment installed successfully when USB plugging into digital storage oscilloscope and connect with it successfully and the screen shall display the tips USB equipment has been removed when USB has been removed from t
12. Picture 3 12 store bitmap into the USB Store setting data of the machine Please operate under the next steps to store the detected waveform data into the USB 1 Plug USB into the USB HOST port of oscilloscope front board 2 Press key the knob MU STORAGE and F1 LTIPURPOSE 3 Press key F5 to select setting with in the waveform storage menu to enter into USB menu UTD2000M User Manual 4 Press key F1 and use knob MULTIPURPOSE to store the file name and press key F5 to confirm and the screen pictures shall be stored in the USB root catalogues with the set name UTD2000M User Manual Example 8 Pass test Detect if input signal is within the stipulated scope and if exceeds the scope it Fail or Pass and the Pass Fail signal shall be ouput via the Pass Fail output port on the back of oscilloscope 1 Press key UTILITY and F3 to enter into the test menu 2 Set information source enter into P F TEST pass test menu and press F3 to set information source 3 Template setting press F5 to enter the next page and press F3 to enter into template setting Press F1 and select reference waveform with knob MULTIPURPOSE and press F3 and F4 and to set horizontal and vertical peak margin horizontal 1 100Pixel vertical 1 100Pixel then press F5 to set storage template and back to Pass Fail menu 4 Set input condition press F5 back to the first page of Pass
13. alternation trigger etc Automatically measuring 24 types of waveform parameters and 2 types of high parameters Unique waveform record and playback function Support USB flash disk storage and software upgrading and print screenat a click functions Support plug and play USB equipment and communicate with computer through the USB equipment Storage the waveforms settings and bitmaps and reappear waveforms and settings Built in 6 bit hardware frequency measuring meter Embedded with FFT and digital filtering Multipurposes of waveform mathematical operations including addition minus multiply and division Unique AUTO setting functions and can configure flexibly to your needs Multi Language Menu and the help menu indication Accessory of the UTD2000M series of digital storage oscilloscope Two 1 2m probes 1 1 10 1 details referred to the probe accessory instruction and meeting the standard EN61010 031 2008 A power wire that meets the standard of the country the product in A User s Guide A Product Warranty USB connector UT D06 UTD2000M digital storage oscilloscope communication control software UTD2000M User Manual Item Page Preface Chapter I User S Guide vey acrcnscasencznuinnesuarysumenentonautensgiahtclarversenngnamtalwesnuohsumonencensit 1 pital SeU encra aA N S 1 General Che Karsinnan ai aa sl Aidit ieee dees 1 Probe COMPENSATION cece cceeeeeeeeeeeeete eee eeeenteee eee
14. gear to set rolling waveform that without trigger signal E Normal trigger oscilloscope shall under normal trigger collect waveform only the trigger conditions are met stop collecting data and wait for trigger when there is no trigger signal and it will produce trigger scanning when there is trigger signal E Single trigger under single trigger user presses once the key operation and the oscilloscope will wait for trigger When the instrument detects a trigger the waveform will be collected and displayed then stop it 3 Trigger Coupling trigger coupling decides which components shall be transmitted to trigger circuit Coupling types include DC AC low frequency restriction and high frequency restriction 37 38 E DC permits all component of the signal to pass through E AC prevents DC components and attenuate signal less than 10Hz E Low Frequency Restriction prevents DC components and attenuates low frequency components less than 80 kHz E High Frequency Restriction attenuates high frequency components over 80kHz 4 Pretrigger Delay Trigger data collecied before trigger event after trigger event Trigger position is usually set at horizontal center of screen and you can observ pretrigger and delay trigger information about 6div For more pretrigge information you can revolve horizontal shift POSITION to regulate horizontal shift of waveform By observing pretrigger data you can obseve waveform information before the
15. into USB only Bitmap output menu Form 2 20 Function menu Setting Instrucition Bitmap Output waveform on the sreen into USB in the bitmap format Output Form 2 21 Enter into USB menu USB menu Form 2 21 Function menu Setting Instrucition File name Set file name for the file that output into USB with knob MULTIPURPOSE and F1 key confirmation After confirmation backto setting storage menu and output into USB if there is or pop out indications such as the function cannot work please plug in USB 45 46 Print screen with a click Plug in USB into oscilloscope and press key PrScrn the screen picture would be stored into the USB quickly with fault file neme DSO BMP Automatic measuring As shown in the following picture MEASURE is the automatic function key the following introduction shall help you familiar with the powerful automatic measuring function possessed by UTD 2000M series of digital oscilloscope Measurement menu Operation instruction press key MEASURE firstly the screen will display 4 function options as shown in form 2 22 UTD2000M User Manual Measurement menu 1 Form 2 22 Function menu Setting Instrucition All parameters Display all parameters and close it automatically with the key F5 Parameter setting Press key F2 and select the parameter needed with knob
16. regulations UNI T shall not be liable for providing the following services according to warranty regulations a To repair the damage caused by the installation repair or maintenance to the product by the non service representative staff of UNI T b To maintain damage caused by improper usage or connection of incompatible equipment UTD2000M User Manual c To maintain damage or trouble caused by using power not provided by UNI T d To maintain products which have been altered or integrated with other products if such alternation or integration will increase product maintenance period or difficulty he warranty is signed by UNI T by aiming to the project so as to substitute any other expressed or implicit warranty UNI T and distributor refuses any implicit warranty for marketability or suitability with special purpose UNI T shall maintain or replace products with defect to users as the unique and all remedial measures for warranty violation UNI T and distributor shall not responsible for such damages regardless of possible indirect special occidental or inevitable damage with without prior notice General safety overview The instrumentshall strictly comply with the safety requirements for electric measuring instrument GB4793 and with the insulation over voltage standard CAT II 600V and the safety standard of pollution degree II Please know the following safety prevention measures to prevent the personal injury and damage
17. teaveneied nadine tered En E EEEREN iS 81 Appendix A Technical IndeX seeenseesssesserssressressresseesreesrersrersrerssersees 81 AppendixB Accessory of UTD2000M series of digital storage oscilloscopes 88 Appendix C Maintenance and Cleaning ssssssssssssrsrsrsrersrrrrrrrrsrrrsn 88 Appendix D Factory Settings ers sneeiniciirini iiini S it 89 UTD2000M User Manual Chapter I User s Guide Apart from the product and function the chapter shall introduct the following themes How to complete the function check automatic adjustment probe compensation and the time and date setting quickly Initial setting The following procedure shall explain how to quickly check the normal function of oscilloscope to use the built in compensation signal to compensate the passive probe and use the operation signal channel compensation program for the highest signal accuracy and to set the time and date E To carry out the initial setup program when first use the oscilloscope E To make probe compensation coordination when first connect the probe with any input channel E To operate self tuning program when the temperature variation is up to or more than 5 C General check You are recommended to check the instrument in accordance with the following steps when you use anew UTD2000M digital storage oscilloscope 1 Check if there is any damage caused by transportation f any serious damage of the package carton or plastic fo
18. the oscilloscope could be used to test and observe the relevant waveform and compare the present waveform with the reference one and then analyze it Press key REF to display the reference waveform menu setting instructions referred to the form 2 6 Note when the reference waveform is callbacked or introduced press key AUTO the waveform will remain UTD2000M User Manual Form 2 6 REF Menu Instruction Function menu Setting Instruction Reference waveform REF A REF B Set reference waveform as REFA Set reference waveform as REF B Callback To call out 10 storage positions from the machine and choose one of the stroge position waveform with konb MULTIPURPOSE and press down it to confirm Introduce plug in the USB Not plug in USB Press key F5 and pop up the file choosing dialogue box and list the waveform documents stored in the USB root directory and choose one of the storage waveform with the konb MULTIPURPOSE press down it to confirm Press F5 indicating that function is not in use please plug in the USB Note 1 if choose the inner storage position you can choose 1 20 and if choose the outer storage please plug in the USB with the indication USB equipment has been installed successfully press F5 introduction menu to enter into the USB document option dialogue box Note 2 waveform document stored in present USB shall be listed in the USB document option
19. there are it would automatically Trigger mode transform into trigger scanning Normal Stop collecting data When there are no trigger signals and will occur trigger scanning when there are trigger signals Single When there are trigger signal input it will trigger once and then stop Rising Set to trigger at the risingedge of signal Edge types Desending Set to trigger at the fallingedge of signal Risingand Set to trigger at the risingand fallingedge of signal once each desending 31 32 Pulse width trigger UTD2000M User Manual Pulse trigger set the trigger time with the pulse width and you can capture the abnormal pulse by setting the pulse width condition Form 2 9 Pulse width trigger Trigger Coupling Low frequency restriction High frequency restriction Menu Function Setting Instruction Types Edge CH1 CH2 Set CH1or CH2as the information source trigger signal EXT EXT 5 Set the external trigger or it divided by 5 as information Information source source AC LINE Set signals of AC house current trigger Alter CH1and CH2 as trigger source alternately DC Be accessible for the input signal AC and DCcomponents AC Prevent input signal DC components Restrict the low frequency components lower than 80kHZz in the signal Restrict the high frequency components higher than 80kHz in the signal Trigger mode Automatic When there are not trigger signal input the system will c
20. to set unit of the vertical unit as ratio 2 5 Using knob MULTIPURPOSEand set cursor 1 at the first rising edge of pulse 2 6 Press MULTIPURPOSE to select cursor 2 and set it as the second rising edge of pulse by revolving knob MUTIPURPOSE 2 7 Press F4 present position 100 and set A value between cursor 1 and 2 as100 2 8 Set cursor 1 at the first falling edge of pulse by knob MULTIPURPOSE the Avalue then is duty Refer to the next picture harm TEV fi 2004 UU id Eves VHI Sulo 627 DCU Picture 3 6 Cursor measurement pulse duty UTD2000M User Manual 3 Measuring phase difference between two signals To measure the phase difference when the sinc signal passing circuit and the input port signal Ch1connecte with circuit and the output signal CH2 connected with circuit For convenience the CH1 and CH2 shift should be set at the midpoint as shown in picture 3 8 and then measure under the following steps 3 1 Press key CURSOR to display cursor measurement menu 3 2 Press key F1 to open cursor measurement function 3 3 Press key F1 again to set cursor type as time 3 4 Press key F3 to set unit of the vertical unit as phase 3 5 Set cursor 1 at the first rising edge midpoint intersection with grounding wire of the sinc signal by knob MULTIPURPOSE 3 6 Press SELECT to select cursor 2 then set cursor 2 at the second rising edge by knob MULTIPURPO
21. trigger For example capturing glitch caused when circuit starts and you can find out the genesis by observing and analyzing pretrigger data Set sampling system UTD2000M User Manual As shown in the following picture function key of the sampling system is ACQUIRE in the control area Using the key ACQUIRE to pop out the sampling set menu and to regulate sampling modes by menu control key Function menu Setting Instrucition Normal Normal sampling sampling Peak value Peak value detecting Sampling Modes sampling detecting glitch and reduce the possibility of false wave Average Set the average sampling mode and to display average frequency Set the frequency of average and step with multiples of 2 AVAE 2542 2 4 8 16 32 64 frequency 128 256 512 and revolve multipurpose knob to change the frequency UTD2000M User Manual To set by changing the acquiring mode and to observe display changes of the wave caused by the above operation False wave could be effectively reduced by using the peak value detecting mode When big noise are contained in signal and average mode and 32 averge mode have not been adopted the collected waveform display shall be as follows in picture 2 20 and 2 21 karma IEI D i ecua Uuu fi tues CHI Ruts ASA U20 IW Picture 2 19 Waveform that have not adopted average i 2004 UCU id tues VHI Aulo ASA B20 Jui Picture 2
22. window To revolve the vertical knob SCALE to change the VOLTS DIV vertical scale coefficiency and you will find the vertical scale coefficiency corresponding to the status bar changes correspondingly The screen shall display the status information about the operation menu sign waveform and gear by pressing CH1 CH2 IREF and MATH Measuring techniques If the channel coupling mode were DC you could quickly measure the signal s DC component by observe the distance between the waveform and signal ground level If the coupling mode were AC the DC component in the signal could be filtered The mode shall be convenient for you to display the AC component in the signal with higher sensitivity Initial knowledge about the horizontal system Two keys and knobs in the level control area as shown in the following picture and the practices below shall make you familiar with the setting of horizontal time base 4POSITIOND Picture 1 4 board levelcontrol area Position knob POSITION move level position of all channels and REF waveform The level menu MENU shall display the window and hold off time UTD2000M User Manual CALE set scale coefficiency of the level scanning time base SEC DIV Press the SCALE to enter into the window extensioniint erface with shortcut mode After starting the extension window you can regulate the magnification times by regul
23. 20 Waveform that have adopted 32 average Noting please choose the peak value detecting mode to prevent confusion about envelop in the observed signal and choose average sampling mode to reduce random noise in the displayed signal frequency of average value will step with multiples of 2 which could be chosen from 2 512 39 40 Nouns Explanation Realtime sampling namely the data needed for a sampling Maximum realtime sampling rate of the instrument is 1GS s Nomal Mode Nomal collecting mode could be used to conduct fastest collecting under any time base gear The normal mode is the default mode Peak Value Detecting Mode under which oscilloscope will find out maximum and minimum value of input signal at each sampling interval and display waveform with those values Thus oscilloscope could acquire and display narrow pulses or narrow pulses might be leaked under the Normal mode and noise could be louder Average Mode under the acquisition mode oscilloscope will acquire several waveforms and obtain the average then display the final waveform For the periodic signal the mode could be used to reduce random noise UTD2000M User Manual Set display system As shown in the following picture DISPLAY in the control area is function key of the display system Using the key DISPLAY to pop out setting menu as follows and regulate the display mode with menu control keys UTD2000M Us
24. BLACK AS FE ih AR RCE 22 hp HE RT ad o UTD2000M Series OPERATING MANUAL Digital Storagg Oscilloscop Preface Dear users Hello Thanks for you choosing the brand new UNI T device In order to use the instrumentcorrectly please read the manual thoroughly and especially the Safety Notes part before using the device If you have read through the manul you are recommended to keep the menu properly with the instrument together or at the place you can read anytime in order to read it in the process of future use UTD2000M User Manual Copyright Information UNI T Uni Trend Technology China Ltd All rights reserved UNI T products inclusive of the patents that had been gained or are applying for shall be protected by the patent right in china or other countries Our Company preserve the right to alter the product specification and the price UWNI T all rights reserved All licensed software products are properties of Uni Trend its subsidiaries or suppliers They are protected by the national copyright law and international conventions nformation contained in this manual supercedes all information in previously published versions UNI T is the registered trademark of Uni Trend Technology China Ltd UTD2000M User Manual Warranty period is 3 years since original purchaser purchases the product from UNI T or authorized distributor if product is sold or transferred to the third party within 3 years a
25. E and press down it to confirm Notes Fetch 10 storage positions out On Inner and CSV format inner or CSV format of the machine and select one could be chosen in Outputting Reference Waveform Poe We of the Storage position with i f knob MULTIPURPOSE and ime USB The inner format only display on the press down it to confirm oscilloscope under REF but on other interface CSV Input Pop out setting file list after format could be opened with EXCEL in computer connected with USB Output Form 2 19 Enter into USB menu 44 UTD2000M User Manual Notes after plugging in USB in the oscilloscope and selecting input the oscilloscope will pop out the conrresponding dialogue box and list corresponding setting storage files under the USB root dialogue if there are and select one of storage position with konb MULTIPURPOSE and press down it to confirm a group of setting needed If there are no USB pluged in it will indicate no valid data Form 2 19 Set output USB menu Function menu Setting Instrucition File name Set file name for the file that output into USB with knob MULTIPURPOSE and F1 key Confirmation After confirmation backto setting storage menu and output into USB if there is or provide indications such as the function cannot work please plug in USB 3 Select bitmap to enter into the bitmap output menu referred to form 2 10 Notes bitmap could be output
26. ENU Press key F2 choose the Signal Source as CH1 50 Miscellaneous function to the trigger level knob and press down it to back to the trigger signal 50 position to produce trigger level choose with the knob and press down MULTIPURPOSEto confirm or choose directly with touch control Press key F3 and then press key F1 trigger coupling as DC Press key F4 trigger mode as automatic Press key F5 mode as up then press key F2 and then press key F1 select Miscellaneous function to the MULTIPURPOSE knob press down it to confirm your choice to setthe to set the zoom Cutshort for entering into the window extension and press down it to enter into the window display to set the slope mode UTD2000M User Manual Chapter I Instrument Setting You have been at present initially familiar with the operation of vertical control area horizontal contol area and the trigger system menu of UTD2000M digital storage oscilloscope With the introduction of the previous chapter the user shall be familiar with the setting of the digital 2 D oscilloscope through the menu operation You are recommended to read the firt chapter if you have not been familiar with the operations and methods above The chapter shall mainly elaborate on the following contents E Waveform brightness setting E Set the vertical system CH1 CH2 MATH
27. MULTIPURPOSE and press down it to confirm displaying at most 4 parameters concurrently from left to right parameter1 4 Indicator ndicate physical meaning clearly of the measurement parameter by lines open the indicator and select parameter needed to indicate from parameter1 4 Delete measurement Delete all parameter settings Next page Enter into next page UTD2000M User Manual Form 2 23 Measurement menu 2 Function menu Setting Instrucition Advanced Delay Time interval between risingor fallingedge of random channel waveform parameter Phase referred to form 2 24 2 25 Above page Back to the above page Delay menu Form 2 24 Function menu Setting Instrucition From CH1 CH2 Select a channel waveformas the delay reference waveform From waveformedge risingand descending Select 10 90 midpoint of the waveform risingor fallingedge To CH1 CH2 Select a channel waveformas the one measuring delay To waveformedge risingand descending Select 10 90 midpoint of the waveform risingor fallingedge confirmation Complete the choice ofmeasuring delay waveform measurement point and back to measurement menu Phase menu Form 2 25 Function menu Setting Instrucition From CH1 CH2 Select a channel waveform as the reference waveform for phase To CH1 CH2 Select a channel waveform as the reference waveform for phase Confi
28. RPOSE and the regulation of trigger load off time could be used to observe the compound or complex signals Initial knowledge about the trigger system A knob and three keys in the trigger menu control area as shown in the picture 1 5 practices below shall make you familiar with the setting of trigger system MENU SINGLE FORCE Trigger system of picture 1 5 board Trigger level knob HORIZONTAL trigger condition for trigger signal to produce trigger could be set by revolving the trigger level knob HORIZONTAL in using trigger modes such as edge pulse width and slope The trigge level could be set as vertical midpoint 50 of the trigger signal by pressing down the trigger level knob HORIZONTAL and the trigger level be zero by pressing down again MENU Display contents of the trigger menu UTD2000M User Manual 1 You will see the trigger sign in the screen to Noting indicate the trigger level line which shifts up and down with the knob when using the trigger level knob to change the trigger level In changing the zero Miscellaneous function to the displacement trigger level you will observe the corresponding knob and press down it to back to the midpoint changes of the trigger level value in the lower quickly part of the screen 2 To change trigger setting with the TRIGGER M
29. SE 2 7 Press F4 present position 360 and set Avalue between cursor 1 and 2 as 360 3 8 Press CH2 and CURSOR to set cursor measurement at measuring signal and maintain cursor posiont ans shift the cursor 2 position 3 9 Set cursor 2 at the first rising edge midpoint of CH2 signal by knob MULTIPURPOSE the Avalue is the phase difference the two signals Refer to the next picture F lt cHz Picture 3 7 cursor measurement of phase difference between two signals 67 68 Example 5 application of X Y function Check phase difference between the two channels Example testing signal shall undergo phase changes when passing through circuit Connect oscilloscope with circuit and monitor input and output signal of circuit please follow the next steps if you want to check input and putput of circuit in the form of X Y coordinate 5 1 Set probe menu attenuation coefficiency as 10X and set probe switch as 10X 5 2 Connect CH1 probe with input of network and CH2 probe with output of it 5 3 Please press CH1 and CH2 menu keys to open the second channels if channel have not been displayed 5 4 Press key AUTO 5 5 Regulate vertical scale knob to make the amplitude of two signals being roughly equivalent 5 6 Press DISPLAY menu key to pop out display UTD2000M User Manual controlmenu 5 7 Press F1 to select X Y and the oscilloscope shall di
30. Voltage amplitude value being measured is 10 times bigger or smaller than the real value check if channel attenuation coefficiency is in accord with the used probe attenuation times 4 Present waveform display which can not be stable 4 1 Check if trigger setting of the trigger menu is in accord with the input channel by real signal 4 2 Check trigger types edge trigger type shoud be UTD2000M User Manual used for the normal signal Only the trigger mode is set correctly shall the waveform be displayed steadily 4 3 Try to change the coupling into the high frequency restriction and low frequency restriction display and to filter high frequency or low frequency noise of the interference trigger 5 Press key RUN STOP but without any display 5 1 Checke if trigger mode of the trigger menu is in normal or single gear and if the trigger level exceeds the wave form scope If it were please put the trigger level centering or set trigger mode as AUTO gear 5 2 Press AUTO key to complete the above setting automatically 6 The display speed becomes slowly after selected to open the average sampling mode time 6 1 It is normal that the speed would slow down when the average frequency is more than 32 6 2 Reduce the average frequency UTD2000M User Manual 7 Waveform displays the form of staircase 7 1 It is normal that maybe the horizontal time base gear is quite low and try to increase the horizon
31. am protective mat were found please contact with the Uni T distributor immediately 2 Check the accessory As regards to the provided accessory details the above mentioned Accessory of UTD2000M series of digital storage oscilloscopes in the manual have clearly stated You can check i if there is any damage to the accessory in reference to the manual If any lack or damage of accessory were found please contact with the Uni T distributor or the local Uni T representative office 3 Check the complete instrument If any damage of accessory surface or failure to work or to pass the function test were found please contact with the Uni T distributor or the local representative office of Uni T f any damage were found please keep the package and contact with the transportation department and the uni t distributor that sells the product UNI T shall arrange for the maintenance or replacement 4 Function check Make a quick function check to make sure if the instrument operates normally 1 to connect the instrument with the power with the supply voltage being AV 100 240V and the frequency 45Hz 440Hz then turn on the power switch press down the front board start button and wait for the instrument to start normally Warning please confirm the safety grounding of the oscilloscope to guard against danger 2 To connect the oscilloscope probe output terminal with the channel 1 and connect the UTD2000M User Manual probe input te
32. an 20MHz and the high frequency components in the signal being measured shall be restricted the waveform displays as follows UTD2000M User Manual full bandwidth 20MHz EOS fii bues LHi fuo AD DCU Picture2 5 Waveform display when the full bandwidth 3 Setting the probe Override In order to be in accordance with the attenuation coefficiency setting of probe it is needed to set the probe attenuation coefficiency in the channel operation menu If the probe attenuatio coefficiency is 10 1 the probe coefficiency in the channel menu correspondingly be set as10 Xto make sure the accuracy of voltage reading The following example displays the setting and vertical gear in application of the 10 1probe Probe attenuation coefficiency Picture 2 6 Probe attenuation coefficiency setting in the channel menu trigger level shift in the picture 18 4 Vertical scale coefficiency VOLTS DIV setting VOLTS DIV gear regulation of the Vertical scale coefficiency can be classified into coarse and fine tuning the VOLTS DIV scope is 2mV div 10V div stepping with 1 2 5 when in coarse tuning While in fine tuning the vertical scale coefficiency could be changed with the smaller stepping in the present vertiacal gear scope thus enabling the vertical scale coefficiency to continuously and without interruption adjust in the range of 2mV div 10V div horma IEI F10 0 b Picture 2 7 vertical scale coefficiency coars
33. ating the window scale 1 Change horizontal time base gear position with the horizontal SCALE knob and observe changes of the status information while revolving the horizontal SCALE knob to change the SEC DIV time base gear you will find the time base gear corresponding to the status bar changes correspondingly with the horizontal scanning velocity 2ns div 50s div and stepping with 1 2 5 mode Noting UTD2000M digital storage oscilloscope shall varies in horizontal scanning time base gear because of the different mode 2 Regulate horizontal postion of signal in the waveform window by the horizontal POSITION knob and you will oberserve horizontal shift of UTD2000M User Manual knob when revolving the horizontal POSITION knob Press down it the trigger point will be back to the horizontal midpoint 3 Press the key MENU to display the menu Zoom below which you can open thef ext nsion WiAdGW with F3 then close it with F1 and back to the Maim window Below the menu you can regulate the tiggerload 6ff time with the knob MULTI PURPOSE Explanation of nouns Trigger Point it refers to the position of the real trigger point ralative to the storage midpoint the trigger point could be shifted horizontally with the horizontal knob POSITION Trigger Load off it refers to the interval between the trigger occurrence and the next restart of trigger circuit You can adjust the trigger load off time with the knob MULTIPU
34. being measured shall be prevented Waveform shall display as follows in the CH1channel of the signal being measured harm IE Setup of Picture 2 1 DC components contained in the signal shall be prevented AC coupling Pressing the F1 and pressing it again to choose DC 1MQ to set the channel coupling as the DC coupling mode It is accessible for the DC and AC components input harmo IEI Picture 2 2 DC and AC components of the signal shall be displayed concurrently Press and press it again to choose the channel coupling as grounding and set the channel coupling as the grounding mode The waveform displays as follows Grounding coupling fi zcuas Uw fed kuzo UHI uto ASA DOU i Picture 2 3 channels are being set as grounding Noting under the mode the input signal will connect with channel circuit eventhough the screen don t display the waveform 2 Set the channel bandwidth restrictions Taking the signal imposed on the channel CH1 as an example the signal being measured contains high frequency Press CH1 to open the channel CH1 then press F2 and F1 the channel bandwidth will be full bandwidth and the high frequency components contained in the UTD2000M User Manual signal being measured will pass The waveform shall display as follows Korma IEVi Picture 2 4 Waveform display when at full bandwidth Press F2 and F3 the noise higher th
35. ctor and element after the power is on Do not operate it if doubt of any problem about UTD2000M User Manual the product and please ask the maintenance personnel to check it Keep it in proper ventilated place Avoid operating in wet conditions Avoid operating in flammable and explosive environment Keep the product surface clean and dry Safety terms and signals Term in the manual The following terms might be concluded in the manual A Warning the warning indication means the condition and activity that might endanger your life Noting the indication means the condition and activity that might cause damage to the product and other property Terms on the product The following terms might be on the product e Danger means you might be immediately injured when you read the sign e Warning means you might not be injured immediately when you read the sign e Noting means the possible damage to the product or other property Signals on the product the following signals might be on the product A A High voltage Caution Refer to manual r7 Protective Ground terminal Ground terminal ground terminal for chassis for testing UTD2000M User Manual Preface The manual shall introduce the operation information about the UTD2000M series of Digital Storage oscilloscopes The manual shall conclude the following chapters Chapter I User s guide Introduce briefly the function of the Digital Stora
36. d press F2 to continue to playback m F2 Stop recording F3 The recording key press key MENU ON OFF to record based on the displayed information and the screen shall display screen number needed to record After recording with the maxium recording data of 800 screen and the recorded data shall lose after the machine is closed The function can not work under SCAN or average work status UTD2000M User Manual Form 2 34 Time Setting Function menu Setting Instrucition Open time displaying and Time displaying On off thetime shall not display if the frequency meter is on Minute amp hour Pess F2 to select setting minute or hour and regulate with knob MULTIPURPOSE Date amp month Pess F3 to select setting date ormonth and regulate with knob MULTIPURPOSE Pess F4 to select and Year _ regulate with knob MULTIPURPOSE 7 Confirm the setting and confirm back to auxiliary menu Automatic Setting Automatic setting could be used to simplify the operation and after pressing the key AUTO oscilloscope can automatically based on amplitude and frequency of waveform to regulate vertical scale coefficency and horizontal time base gear and to enable the waveform to display steadily on the screen In automatic setting the system shall automatically regulate based on s
37. e Trigger level Set as 50 Set as 50 Slope types Rise Keep present setting Signal recognition Automatically regulate the channel Open the channel UTD2000M User Manual Notes Regulations of trigger information source under AUTO are based on 1 The signal inputchannel shall be used as the trigger source when only one channe with iput signal 2 In using multi channels automatic setting function shall set vertical control of each channel and to set horizontal and trigger control by using activity channel with smallest number 3 CH1 channel shall be used as trigger source when no signal in all channels AUTO automatic setting Strategy Open Under AUTO relevant setting will back to fault status and complete the AUTO setting Locking under AUTO lock the relevant presetting status and to complete AUTO setting AUTO stategy menu shall display the needed setting project in the automatic setting process and the projects are as follows Form 2 36 automatic option setting Function menu Setting Instrucition Channel setting Locking Open The chosen channel setting shall not be changed in automatic setting Channel shall be set based onthefault status in automatic setting in form 2 35 Sampling setting Locking Open The chosen channel sampling mode shall not be changed in automatic setting Sampling mode shall be set based onthefault status in automatic setting i
38. e and fine tuning UTD2000M User Manual 5 Setting of waveform opposite phase Waveform opposite phase display the phase of signal revesing 180 degrees the waveform of non opposite phase can be seen in the picture 2 8 the waveform after opposite phase in picture 2 9 horma Rii F 2 Watkte cn fi Cts 3cu oun Ji kegs LHI Auo MA UCU Picture 2 8 Non opposite Phase UTD2000M User Manual iu SOUS Jie Eves UHI fuo AOA UCUN Waveform after opposite phase in picture 2 9 6 Bias Voltage Setting It will be inconvenient to observe waveform when the amplitude of DC component in signal being measured is quite big compared with that of AC component as shown in picture 2 10 Picture 2 10 Signal Containing DC Component Bias voltage function can be used to offset DC component for better display of signal in screen Enter Bias Voltage function menu set bias voltage with knob MULTIPURPOSE as shown in picture 2 11 it is possible to calculate DC component of signal based on bias voltage value i scuse CIC tues VHT dulo 022 OCU iy Picture 2 11 Waveforms after Using Bias V 20 oltage UTD2000M User Manual Perform the mathematic operation function It means displaying the operation results after the addition substraction multiplication and division of the CH1 and CH2 channel waveform and displaying the er digital filtering m IRI Cob waveform aft it 2004s COM Tia Edes CHI Ruts 927 320 4 Pic
39. e previous chapter 63 64 3 Improve trigger by setting trigger coupling 3 1 press key MENU in the trigger area to display the trigger setting menu 3 2 Set trigger coupling as low frequency restriction or high frequency restriction Low frequency restriction means to set a high pass filter to filter low frequency signal components fewer than 80KHz permitting high frequency signal component to pass High frequency restriction means to set a low pass filter to filter high frequency signal components above 80KHz permitting high frequency signal component to pass By setting low frequency restriction or high frequency restriction low frequency or high frequency noise could be restricted and to attain steady trigger 4 Reduce display noise by setting sampling modes 4 1 If waveforms are coarse resulted by random noise overlapped on the signal being detected you UTD2000M User Manual could remove random noise display to make waveform fine by using average sampling mode easy for observation and measurement steps are Press collection key on the board menu area to display sampling settin menu Press key F1 and knob MULTIPURPOSE to set sampling mode as average status and press to confirm then regulate averge times with knob and step from 2 to 512 with power of 2 until waveform display meets the observation and testing requirements refer to the following picture UTD2000M User Manual Picture 3 4 signal noise have bee
40. ee e teeter reese eee E a E 64 Example 1 measuring Simple SiQnal cc ccceececcceeeeeeeeseeeststeaeeeeeeeeeess 61 Example 2 Capture Single SiQnal cccccccccccsesecececsssseeceessseeeeeeesseeeeeeensaaes 62 Example 3 Reduce random noise of the sinal 63 Example 4 Application of cursor measurement esseeeeeeseserieeerrrerrree 65 Example 5 application of X Y fuUnction ssessiseesreserrrerrrrerreeeerreerrreene 68 UTD2000M User Manual Item Page Example 6 vedio signal triQg Clix i 2s2c252 i15 wa agrenerentiv nannies ererereveasoiag eas 69 Example 7 Store data into USB flash diSKS 0 0 eee eee eee cent eenneetneeenaes 71 Example 8 Pass teSt ccccccccceceeeeecceecneceeeeeeeeeeeeeecaeaacaeeeeeeeeeeseesecscncaeeeeeeeeees 73 ChapterlV System Tips and Trouble Shooting cccceceeceeeeeeeeeeeeeeeeeeeeeeseeeseeeeeeseeeeees 75 Instruction about the system UpS ercerirccsrirsreererrrnriarireerekeis erai 75 Trouble SHOOTING aeaa tatete are teaandatadad dard mabeetatanthesases 75 ChapterV Service and Suppott cccccee cee eee cence eee ee eee ea cease eeeeaeeeeaeeeeeeeeeaeees 77 Section 1 Product program upgradation ccceccceececeeeeeeseeeeeeeeeeeseeeees 77 Section 2 Maintenance OVEMDView isc cciessccaresecdiagenss neni iaieiiea 79 Section 3 Contact USs cs cscciaissnssiachensctiscanectacnansssascabecthenehecsadcameenseaadestaacns 80 ChapterVI AppeOnd ix wits ceiscs tevcreicasees a
41. er Manual Form 2 15 Display Menus Menu Function Setting Instruction YT Display voltage value relative to the time horizontal scale Types XY X Y display mode Vector Shown by the line with sampling points Format i Point Show sampling points directly Full Set grid display mode of waveform display area as full Grid grid cross hair or frame mode Grid Cross Hair Frame Automatic Screen waveform renew with normal refresh rate Short persistence Waveform data on the screen refresh after remaining short time Waveform data on the screen refresh after Continuous y remaininglong time Long persistence Original waveform data on the screen shall if new data Limitless are continuously displayed remain displaying continuously and until the function have been closed 41 42 X Y Mode Under the mode CH1voltage will be shown on the horizontal axis x axis and CH2 voltage will be shown on the vertical axis Y axis A mh IEI F 703 Picture 2 21 waveform display under X Y Mode Noting under X Y Mode to shift xy picture horizontally with CH1 POSITION knob and shift it vertically with CH2 POSITION knob It is possible to regulate size and shape of xy picture with SCALE knob with two channels and it will display effective UTD2000M User Manual Lissa jous Graphics by changing time base gear Apart from with unique x y display mode and displaying channel waveform and x y Lissa jous Gra
42. er mode gt lt positive pulse width gt lt negative pulse width Pulse width scope 20ns 10s 83 84 UTD2000M User Manual Vedio trigger Trigger sensitivity vedio trigger typical internal 2div EXT 400mV EXT 5 2 0v Signal systemand horizontal vertical frequency vedio trigger types Support standard NTSC and PAL Scope horizontally 1 525 NTSC and1 625 PAL Slope trigger Trigger mode gt lt positive slope gt lt negative slope Time setting 20ns 10s Trigger accuracy lt 3 Trigger frequency meter Reading resolution 6 bit accuracy 51ppm Frequency scope When AC coupling from10Hzto full bandwidth Trigger types Pulse width or edge UTD2000M User Manual Measurement Manual Voltage difference between cursors AV time difference mode between cursors AT reciprocal of AT Hz 1 AT cursor Tracking mode Voltage value and time value of the Waveform point Automatic Measuring Allowable to dispalycursor in automatic measurement mode Maximum value minimum value top value bottom value medium value peak peak value amplitude value average value mean square root value period average value period mean Automatic cj iti square root value area period area frequency period rising edge falling edge positive measurement pulse width negativepulse width accidental pulse wid
43. erate 20 C 60 C Cooling method Forced cooling by fan Humidity lt 35 C lt 90 RH 35 C 40 C lt 60 RH Height Operate under 3 000m Non operate under 15 000m UTD2000M User Manual Appendix B Accessory of UTD2000M series of oscilloscope Twol 2m 1 1 10 1 Passive Probe details refered to the probe accessory instruction meeting the standard EN61010 031 2008 When the switch is at the position 1X it is 150V CAT II When atthe position 10X it is 300V CAT II Apower wire complying with the standard of the country A Users Manual A Product Warranty Communication control software USB DEVICE of the UTD2000M series of oscilloscope Accessory for purchase UTD2000M LAN module UT M01 Please place order to the local UNI Tdistributor for the accessory standard parts and accessory for purchase Appendix C maintenance and keep clean General maintenance Please do not store or put the instrument on the place where the monitor would be exposed to sunshine for a long time Be careful keep the instrument or probe away from the sprays fluids and solvents to guard against damage to the instrument or probe Clean Check the instrument and probe usually in accordance with the operation status and clean the instrument surface under the following steps 1 Please wipe dust on the instrument and probe with the soft cloth and do not scrap the transparent LCD
44. ernal trigger EXT EXT 5 AC LINE etc E Input Channel trigger information source mostly used is to choose one of the input channe CH1 and CH2 No matter channel input waveform is displayed or not to choose one channel as the channel for trigger information source UTD2000M User Manual E External Trigger trigger signal could be input directly via external input port For example the external clock or signal from circuit being measured could be used as trigger information source Ext trigger source collects external trigger signal via EXT trig input port and the signal trigger level range could be set from 0 8V to 0 8V With EXT 5 and EXT trigger signal being divided by 5 trigger level range could extend from 4V to 4V thus enabling external trigger to input bigger signal E AC LINE namely the AC house current source The trigger mode could be used to observe signals related with AC house current such as relations between lighting equipment and power supplying equipment to obtain stable synchrony 2 Trigger Mode deciding the action way of oscilloscope under the trigger event Three trigger modes automatic normal and single trigger E Automatic trigger when there is no trigger signal input system will automatically collect data and display and when there is trigger signal it will transform into trigger scanning to synchronize with signal Noting under the mode it is permitted for 50ms div or slower time base
45. et Hanning window function Vertical Set the vertical coordinate unit f linear dbv coordinate as linear or dbv Signals with DC components or deviation shall result in mistakes or deviations of the FFT waveform components The channel could be set as AC coupling mode to reduce the DC components and the aquisition mode of oscilloscope could be set as the average acquisition to reduce random noise of the repeated or single pulse events and the aliasing frequency component 22 UTD2000M User Manual Select FFT window Suppose the YT waveform repeats continuously the oscilloscope shall make the FFT shift to the time record with limited length when the period is an integer the YT waveform amplitude shall in the start and end remain the same and the waveform will not interrupt Whereas the YT waveform period is not an integer which would result in the waveform amplitude diffenrences between the start and the end thus the high frequency temporary interruption will occur at the connector The effect is called leakage in frequency domain In order to prevent the leakage to multiply the original waveform with a window function to force value of the start and end to be 0 UTD2000M User Manual Form 2 4 FFT Window Characteristics proper measuring content he best frequency resolution and Signal level is basically the same before and after Transient Rectangle the worst amplitude resolution or short p
46. etting status of when the are as follows AUTO stategy AUTO strategy is open system settings 57 58 Form 2 35 automatic setting UTD2000M User Manual Function Open Locking Bandwidth restriction Full bandwidth Full bandwidth or 20MHz to keep the present setting vertical scale coefficency Regulate based on signal amplitude Based on signal amplitude VOLTS DIV Coarse tuning Coarse tuning Opposite phase close Open or close to keep present setting Horizontal position Automatic tuning Automatic tuning VOLTS DIV To regulate based on signalfrequency To regulate based on signalfrequency Acquisition mode Normal sampling Keep one of present setting normal sampling peak value average Sampling mode Equivalence or realtime present setting keeping Equivalence or realtime present setting keeping Fast collecting off off Trigger type Edge To keep present setting edge pulse width vedio or slope Based on information T f t rigger intormation SH1or CH2 in To keep present setting CH1 CH2 EXT EXT 5 or AC Line source reference to notes Trigger coupling To keep present setting DC AC low orhigh frequency restriction To keep present setting DC AC low orhigh frequency restriction Trigger modes Automatic Automatic Load off time Minimum value Keep present setting valu
47. ff and delete all measurements Other Cursor Off system Contrast 50 100 Language Keeping Interface style Classic menu indication Manual Grid brightness 32 32 UTD2000M User Manual UTD2000M User Manual This user manual may be revised without prior notice 89 90 Address Rm 901 9 F Nanyang Plaza 57 Hung To Road Kwun Tong Kowloon Hong Kong Phone 852 2950 9168 Fax 852 2950 9303 Email info uni trend com Website www uni trend com Manufacturer UNI T Technology Chengdu Co Ltd Add 2F Building D2 No 199 West District Avenue West High tech District Chengdu City Sichuan Province P R China UTD2000M User Manual
48. for the product or any product connected with the product In order to prevent the possible dangers please use the product in accordance with the stipulations Only the professionally trained personnel are entitled to conduct the maintenance procedure Prevent the fire and personal injury Use the correct power wire to use the specific power wire of the product that accredited by the country Push and pull correctly do not push or pull when the probe or test wire isconnected with the power source Connect the product to ground the product is connected to the ground through the ground UTD2000M User Manual conductor which shall be connected with the ground in order to prevent the electric shock Please connect the product to ground correctly before connect the input or output Connectthe digital storage oscilloscope probe correctly the probe ground conductor is the same as groundelectricpotential Do not connect the ground conductor with high voltage Check all terminal rated values please read all rated value and sign instruction on the product and read the product manual for more detaileds about the rated value before connect the product to guard against the fire and high current shock Please do not open the cap board don t operate the instrument while the cover or board is open Use the right fuse use the product designated types of fuse and the rated index only Avoid circuit exposure avoid touching the exposed conne
49. frequency 2 4 press key F5 to quit the option box Then the measurement value of peak peak value and frequency shall display on the bottom of screen as picture 3 1 Susto 61 Piture 3 1 automatic measurement 62 Example 2 Capture single signal The advantage and characteristic of digital oscilloscope lies in conveniently capturing non periodic signal such as pulse glitch if capture a single signal you are needed to have certain priori knowledge about the signal before setting trigger level and trigge edge For example if pulse isa TTL level logic signal the trigger level shoud be about 2V and trigger edge should be set as rising edge trigger when the signal is uncertain you can observe by automatic or normal trigger mode to confirm trigger level and trigger edge Steps are as follows 1 Set probe and chl channel attenuation coefficiencty as the above example 2 Set trigger 2 1 Press key MENU in trigger control area to display the trigger setting menu 2 2 By using F1 F5 menu operatin keys in the menu to set trigger types as edge information source as CH1 trigger coupling as DC trigger mode UTD2000M User Manual as single and the slope type as rising 2 3 Regulate horizontal time base and vertical gear to the adequate scope 2 4 Revolve knob HORIZONTAL to regulate the proper trigger level 2 5 Press function key RUN STOP to keep oscilloscope in o
50. fter original purchaser purchases it Probe other fittings and fuses are excluded in this warranty UNI T can decide to maintain products with defects independently without paying the expenses of parts and labor or replace them by equivalent products if there is any defect at applicable warranty period UNI T determines to replace products with any defect Warranty parts modules and replaced products of UNI T may be new or with performance of new products after maintenance All replaced parts modules and products may become UNI T properties Users mentioned below refer to rights persons or entities regulated by warranty according to statement Users must report defects to UNI T within appropriate warranty period with service fulfillment properly to gain service committed by warranty Users shall pack products with defects and submit them to maintenance center designated by UNI T In the meanwhile they shall pay for freight fee in advance and provide copied procurement certificate of original purchaser UNI T shall pay for product return expense to users if transporting product to location within state of UNI T maintenance center Users also shall pay for all freight fees tariffs taxes and other expenses if returning products to any other location The warranty is not applicable to any defect trouble or damage caused by sudden accidents normal abrasion of machine parts improper usage maintenance or deficiency out of scope of product
51. g Information CH1 Set CH1 as the filtering object Source CH2 Set CH2 as the filtering object Lowpass Set the filter as lowpass Filtering Types Highpass Set the filter as highpass bandpass Set the filter as bandpass Lower limit of Only effective in highpass or bandpass filtering and set the lower limit of frequency with theknob Frequenc 3 MULTIPURPOSE Higher limit of L Only nective in lowpass or bandpass filtering and set the higher limit of frequency with the knob Frequency MULTIPURPOSE 25 26 Reference Waveform Reference waveform could be accessed or closed by the REF menu Reference waveforms are restored in the non easy lost storage of the oscilloscope or the USB and have names as follows REFA REF B Please follow the following steps if displaying access or hinding close reference waveform is needed 1 Press key REF 2 Press F2 Callback to choose with the knob MULTIPURPOSE information source position which include 1 10 When you choose one of the waveform stroge positions say 1 press konb to choose and to access the waveform originally restored in the position As regards to store and callback the reference waveform on the USB please refer to storage and callback 3 Press key to choose REFIB and choose the second information source involved in operation similar to step2 UTD2000M User Manual 4 Close the reference waveform and please close the REF menu In application
52. ge oscilloscopes and the installation intrucitons ChapterlI Instrument Setting Introduce the operation measures for the UTD2000M series of Digital Storage oscilloscopes Chapter Application Examples Provide application examples to solve measuring problems ChapterlV System indication and troubleshooting ChapterV Service and sustain ChapterVI Appendix Appendix A Technical Index Appendix B Accessory of UTD2000M series of digital storage oscilloscopes Appendix C Maintenance and Cleaning Appendix D Chinese English Board Look up Table Appendix E Factory Setting UTD2000M User Manual Brief introduction of the UTD2000M series of digital storage oscilloscope The UTD2000M series of digital storage oscilloscope are a perfect combination of usability uniquie technical index and multipurposeality helping users completing testing more quickly 6types of digital storage oscilloscopes as following are introduced in the manual The UTD2000M series of digital storage oscilloscope provides a simple and functionally clear front panel features enabling to conduct all basic operations Scales of each channel and the position knobs provide Intuitiveoperation according with the use habit of traditional instrument and enabling the user to operate it proficiently without taking much time to learn and be familiar wi operation of the digital storage oscilloscope In order to speed up the adjustment for measuring the user can press directly the but
53. he digital oscilloscope and the screen shall display the tips I O operation fails U disk communication fails or the files reached requirements could not be found in the U disk Trouble shooting 1 If the power switch is on and after start the soft switching the digital storage oscilloscope is still black screen without any indication please follow the next steps 1 1 Check if the power switch is connected and the power supply is normal 1 2 Check if power switch is open and after opening the front board soft switching shall be right light and there shall be normal relay sound when it starts after press down the soft switching 1 3 If there is normal relay sound it indicates that the oscilloscope starts normally 1 4 The above steps are completed and restart the oscilloscope 1 5 If you can not use the product normally please contact with UNI T and we will provide you service 2 When signals were collected and waveform of the signal has not been displayed in the picture please address under the next steps 1D 76 2 1 Check if the probe is connected with the signal connection wires 2 2 Check if the signal connection wires are connected with BNC channel connector 2 3 Check if the probe is connected with the object being detected 2 4 Check if there are signal in the object being detected to find the problem by combining the channel appeared signal with the channel with problem 2 5 Recollect signal once 3
54. icture 6 2 79 80 ChapterVI Appendix Appendix A Functional Index Unless otherwise stated all technic specifications shall apply to probe with attenuation switch being set 10 xand UTD2000M series of digital oscilloscope Digital oscilloscope reaches those specifications and standards only if meet the following two conditions E The instrument shall be in continuous operation more than 30 minutes under the stipulate operation temperature E Ifthe operation temperature shift reaches to or over 5 degrees the system function menu shall be opened to implement the Automatic Adjustment procedure and except the specification labeled with word Typica all specifications shall be guaranteed UTD2000M User Manual Technical index Sampling mode Samninawod Real time Equivalence ape sampling sampling Single channel 1GS s Sampling rate double channel 50GS s simultaneously 500MS s All channels reach N times of sampling and N should be chosen among 2 4 8 16 32 64 128 256 and 512 Average value Input Input coupling AC DC GND parallel connection between 142 MO and 24 3pF 1X 10X 100X 1000X 400V DC AC peak value input impedance 1MQ 50ps Input impedance Probe attenuation coefficiency setting Maximum input voltage Time delay in channel typical UTD2000M User Manual Horizontal Waveform Interpolation sin x x Sto
55. ing frequency or failing frequency when reach the threshold value judgement condition statistics and Pass Fail judgement shall stop automatically Template settin rom Set Pass Fail judgement template and construct it 2 32 Back Back to function menu Above page Back to the above page Form 2 31 Pass Testing stop setting menu Function menu Setting Instrucition Pass Stop types frequency Set the stop types pass Failure orfailure frequency frequency Stop conditions Set the stop conditions Set the threshold value of Threshol os n a ole 1 10000 stop conditions by knob MULTIPURPOSE Back Back to function menu 55 56 UTD2000M User Manual Form 2 32 pass testing template setting menu Function menu Setting Instrucition CH1 Reorencewavelom Gie Satclte GHZ or REFA waveform on present REFA i Horizontal tolerance 1 100 Set by the knob MULTIPURPOSE Vertical tolerance 1 10000 Set by the knob MULTIPURPOSE Construct template Store and construct template and back to the above page Form 2 33 Waveform Recording Menus Function menu Setting Instrucition gt F1 Playback key 1 Press the key to playback and display the playback screen number on the screen During the playback it would stop by revolving the knob MULTIPURPOSE and select waveform display of any numbered screen 2 Press F1 to stop an
56. ion at the trigger edge with konb HORIZONTAL trigger level namely the intersection on the displaying interface of trigger level line with signal edge Pulse width trigger trigger will occur when the UTD2000M User Manual pulse width of trigger signal meets the set trigger condition Vedio trigger to trigger with vertical or horizontal signal of the standard vedio signal Slope trigger to set the oscilloscope to positive or negative slope trigger to the designated time Instructions about types of trigger menu are as follows Edge trigger Edge trigger menu is referred to form 2 8 UTD2000M User Manual Form 2 8 edge trigg Menu Function Setting Instruction Types Edge CH1 CH2 Set CH1or CH2as the information source trigger signal Information Source EXT EXT 5 Set the external trigger or it divided by 5 as information source AC LINE Set signals of AC house current trigger Alter CH1and CH2 as trigger source alternately DC Be accessible for the input signal AC and Dccomponents AC Prevent input signal DC components ITrigger Coupling Low frequency restriction High frequency restriction Restrict the low frequency components lower than 80kHz in the signal Restrict the high frequency components higher than 80kHz in the signal Automatic When there are not trigger signal input the system will collect automatically waveform data and to display scanning baseline and when
57. l trigger 6 1 Press key MENU in the trigger control area to display trigger menu 6 2 Press F1j and use knob MULTIPURPOSEto select the trigger type as vedio 6 3 Press key F2 and use knob MULTIPURPOSEto select trigger CH1 as the trigger source 6 4 Press key F5jto enter into vedio setting and press to select PALas the vedio system 6 5 Press key to select odd vertical or even vertical as the synchronous 6 6 Clear waveform display shall be obtained by using time base gear knob in application horizontal area to regulate horizontal time base 69 70 Piture 3 10 Vedio Vertical Trigger Vedio horizontal trigger Please operate under the next steps if you want to trigger at the vedio vertical 1 Press key MENU in the trigger control area to display trigger menu 2 Press key F1 and the knob MULTIPURPOSEto select vedio as the trigger type 3 Press key F2 select CH1 a and use knob MULTIPURPOSE to s the trigger source 4 Press key F5 to enter into vedio setting and press UTD2000M User Manual PALto select as the vedio system 5 Press key F2 and use knob MULTIPURPOSE to select designated horizontal as the synchronous 6 Use knob MULTIPURPOSE to set any horizontal 7 Clear waveform display shall be obtained by using time base gear knob in application horizontal area to regulate horizontal time base haem IEI
58. mpling mode DC measuring accuracy averagevalue sampling mode Vertical shft is zero and N216 4 5 Xreading 0 1 grid 1mV and select 2mV div 3 Xreading 0 1grid 1mV and select 5mV div 5V div Vertical shft is notzero N 16 3 X reading vertical shift reading 5 X vertical shift reading 0 2div set from 5mV div to 200mV div 2mV set value gt 200mV div to 5V div 50mV Voltage defference AV measuring accuracy average sampling mode Under the same setting and environmental conditions and gain the average of the captured waveform 216 voltage difference between any two points AV 3 x reading 0 O5div UTD2000M User Manual Trigger Internal trigger lt 1div Trigger sensitivity EXT lt 60mV EXT 5 lt 300mV internal To the screen center 8div Trigger level scope EXT 800mV EXT 5 4 0V Trigger level accuracytrigger external 0 3div X V div in scope of 4div away from screen ceter level accuracy typical and to EXT 6 setting value 40mV select rising and falling time220ns EXT 5 6 setting value 200mV Pretrigger ability Normal mode scanning mode pretrigger mode delay trigger pretrigger depth adjustable Load off scope 100ns 1 5s Set level to 50 typical Operate under the condition of input signal frequency250Hz Edge trigger Edge types Rising edge falling edge rise amp fall Pulse width trigger Trigg
59. n Types vedio H1 CH2 Set CH1or CH2 as the information source Information trigger signal Source EXT EXT 5 Set the external trigger or it divided by 5 as information source Vedio setting Form 2 12 Enter into vedio setting Form 2 12 Vedio setting UTD2000M User Manual Function menu Setting Instrucition NTSC Vedio signal for NTSC system Vedio System PAL Vedio signal for PAL system Odd vertical Set to trigger at odd vertical Even vertical Set to trigger at even vertical All horizontal Set to trigger synchronous to the horizontal sinal Synchronous Designated Set to trigger synchronous to horizontal the designated vedio horizontal and to regulate with knob MULTIPURPOSE PALsystem 625 horizontal NTSCsystme 525horizontal When the vedio system is PAL and the synchronous mode is horizontal screen display shall be as shown in the picture 2 14 and whe the synchronous mode is vertical screen display shall be as shown in the picture 2 16 UTD2000M User Manual Regulating trigger load off time Trigger load off time could be used to observe comples waveform ex Pulse sequence Load off time means the time oscilloscope waited to restart trigger circuit during load off time oscilloscope will not be triggered till the ending of load off time taking picture 2 17 as an example load off time coulde be set as pulse sequence width when a series of pulse
60. n form 2 35 Trigger setting Locking Open The confirmed trigger setting shall not be changed in automatic setting Trigger shall be set based onthefault status in automatic setting in form 2 35 Signal recognition Locking Open Locking keep the open or close status of channel Open open or close channel according to if there is signal 59 60 Form 2 37 UTD2000M User Manual Function menu Setting Instrucition Sampling mode Normal sampling One of sampling peak value and average shall remains Channel setting Band width restriction full bandwidth Opposite phase off One of sampling peak value and average shall remains Trigger Setting Trigger edge Trigger source antomatic finding Trigger mode automatic Trigger edger rise Trigger keep the chosen one unchanged edge pulse width and slope Trigger source keep thechosen trigger source unchanged Trigger mode automatic keep the trigger setting unchanged Signal recognition Automatically finding signal Stop finding signal when channel closed Using RUN STOP key RUN STOP is on the right top corner of oscilloscope control board and press the key with green light and itis in operation and when the light is red it stops working When in operation the digital oscilloscope is continuously collecting waveforms with screen displaying AUTO and when it stops the oscillosc
61. n restricted Notes It is normal that the refresh speed of waveform display would slow down and without afterglow effect by using average sampling mode Example 4 Application of cursor measurement The oscilloscope can automatically measure 24 types of waveform parameters All automatic measurement parameters could be obtained with cursor and by using it to fastly measure time and voltage of waveform 1 Measure a peak frequency of Sinc signal Please follow the following steps if you want to measure a peak frequency of Sinc signal 1 1 Perss key CURSOR to display cursor measuring menu 1 2 Press key F1 to open cursor measuring function 1 3 Press key F1 again to set cursor type as time 1 4 Press key to set unit of vertical unit as Hz 1 5 To set cursor 1 as the first peak of Sinc by using knob MULTIPURPOSE 1 6 Press SELECT to select cursor2 and then set cursor 2 at the second peak by revolving knob MUTIPURPOSE 65 66 Referring to the next picture Notes if measuring voltage with cursor please refer to the second step above to set cursor types as voltage Picture 3 5 Cursor measurement signal frequency 2 Measure duty of pulse signal 2 1 Press key CURSOR to display cursor measurement menu 2 2 Press key F1 to open cursor measurement function 2 3 Press key F1 again to set cursor types as time UTD2000M User Manual 2 4 Press key F3
62. ndent mode under which you can independently regulate positons of the two cursors and tracking mode under which you can shift two cuosors simultaneously by pressing the key SELECT Function menu Setting Instrucition Types Time Cursor used for time measurement Independently shift any one of the two cursors Modes Modes Simultaneously shift the two cursors while maintaining the At Second Measurement parameter is time Hz Measurement parameter is Vertical unit frequency Ratio Measurement parameter is percentage Phase Measurement parameter is phase 51 52 Form 2 27 Voltage Cursor Measurement Menu UTD2000M User Manual cursors as 100 and the 6 grid position 100 means to set space position of screen 3div as 100 3 When cursor function is open the measurement value shall display on the left top corner of screen and is the cursor value being selected Auxiliary Function Setting UTILITY in the function menu area is the auxiliary Function menu Setting Instrucition Types voltage Cursor used for voltage measurement Independently shift any one of the two cursors Modes Independent simultaneously shift the Tracking two cursors while maintaining the AV Base Measurement parameter Horizontal unit i te voltage Ratio Measurement parameter is percentage Notes 1 Under the indepent or tracking mode press knob MULTIPURPOSE and selec
63. nual CH2 the system shall display the operation menu of CH1 and CH2 channel and details are referred to following form 2 1 Form 2 Channel Menu Instructions Function Menu Setting Instruction DC Be accessible to the AC and DC components of the input signal Coupling AC Prevent the DCcomponents of the input signal Grounding Displaying the reference ground level keep connection with the input signal Bandwidth Restriction Full bandwidth 20MHz Full bandwidth Restrict the bandwidth to 2OMHzto reduce the displaying noise Coarse tuning Coarse tuning to set the vertical scale coefficiency with1 2 5 system VOLTS DIV fine tuning Fine tuning to set it during the scope set by the coarse tuning according to specific needs for increasing the vertical resolution 1x To choose one of the value to make sure accuracy of the reading Probe 10x of vertical scale coefficiency based on the probe attenuation 100 coefficiency 1X 10X 100x 1000X 1000 x Opposite Phase Switch on Waveform is reversed Switch off Waveform is displayed regularly UTD2000M User Manual 1 Set the Channel Coupliing Taking the signal imposed on the CH1channel as an example the signal being measured is a sinusoidalsignal containing DC components Pressing F1j and choosing the AC with the knob MULTIPURPOSE to set the channel coupling as AC1MO coupling mode DC components contained in the signal
64. ollect automatically waveform data and to display scanning baseline and when there are it would automatically transform into trigger scanning UTD2000M User Manual Menu Function Setting Instruction Normal Stop collecting data When there are no trigger signals and will occur trigger scanning when there are trigger Trigger mode signals Single When there are trigger signal input it will trigger once and then stop Pulse width setting Form 2 10 Set the pulse width Form 2 10 Pulse width setting Menu Function Setting Instruction Positive pulse width Set positive pulse width Pulse width polarity Negative widthpulse as trigger information source set negative widthpulse as trigger information source lt To trigger when the input signal pulse width is smaller than Pulse width the set value of pulse time yea et than th conditions To trigger when the input signal pulse width is bigger than the set value of pulse time To trigger when the input signal pulse width equals to the set value of pulse time Pulse width time 20 0ns 10 0s Trigger pulse width setting 20 0ns 10 0s with the knob MULTIPURPOSE Back Back to the pulse width trigger menu 33 34 Vedio Trigger n choosing the vedio trigger vertical or horizontal trigger of ntsc or pal standard signal will occur Trigger menu is referred to form 2 11 Form 2 11 vedio trigger Function menu Setting Instrucitio
65. ope stops collecting with screen displaying STOP The key makes waveform collecting shift between operation and stop Menu On Off menu display On Off key Display or hind present menu The oscilloscope shall hind or displays the menu box with Menu On Off and the key don t work to help information box and to press the HELP key to close the help menu information box UTD2000M User Manual Chaptelll application examples Example 1 measuring simple signal To detect one unknown signal in the circuit and fastly display and measure frequency and peak value of signal 1 Please operate as follows if want to fastly display the signal 1 1 Set probe menu attenuation coefficiency as 10 x and set the switch on probe 10 1 2 Connect CH1probe with the detecting point of circuit 1 3 press key AUTO Oscillopscope shall make waveform to reach the maximum status by automatic setting and based on it you can regulate vertical and horizontal gear in further until the waveform display meets your requirement 2 Voltage and time parameter for automatic measurement of signal Oscilloscope can automatically measure most of displaying signals Please operate as follows if want to measure signal peak peak value and frequency 2 1 Press key MEASURE to display automatic measurement menuy 2 2 Press key F2 to select measurement menu types 2 3 Select peak peak value with knob MULTIPURPOSE and press down it to confirm then select
66. oscope being upgraded 2 Hardware version of the program upgradation package shall be in accord with that of the oscilloscope being upgraded 3 Software version of the program upgradation package shall be bigger than or equal to that of the present oscilloscope 4 FLASH type of the program upgradation package shall be in accord with that of the oscilloscope being upgraded UTD2000M User Manual Program upgradation 1 Turn off the oscilloscope and plug U disk copied with program upgradation documents into the USB HOST port of oscilloscope 2 Connect power and start the oscilloscope and it shall enter into automatically the welcome interface of program update system as shown in 6 1 Program Update System AN UNL USB Update proeran VS2 Welcose you are using Picture 6 1 3 User can upgrade it under the instruction of the upgradation interface UTD2000M User Manual 4 It shall display OK when the program upgradation process reaches 100 and it means program upgradation have been completed as the indication shown in picture 6 2 Congratulation Updata process Success Pull out U disk and restart oscilloscope Notes 1 When upgradating please do not power off to guard against the unknown mistakes 2 The oscilloscope shall be initialized when restart the oscilloscope after updated the program and enter into the operation interface after waiting for 30s 1m Program Update System SUL UU P
67. peration steadily and wait for signal that meets the trigger conditions to appear if a signal which meet the conditions of trigger level namely a sampling shall display on the screen It is easy by the function to capture the accidental event such as the accidental glitch with great amplitude to set trigger level as level slightly above normal signal and press key RUN STOP to wait when there are glitches the machine shall automatically trigger and record waveform in the period before and after trigger By revolving the horizontal knob POSITION in the horizontal control area of board to change horizontal position of the trigger position the negative delay trigger with different length could be attained for observing waveform before the glitch occurrence UTD2000M User Manual Picture 3 2 capturing single signal Example 3 Reduce random noise of the sinal When the signal being detected was overlapped with random noise you can filter or reduce the noise by regulating oscilloscope setting to prevent interference to ONTOLOGY signal during measurement Picture 3 3 reduce random noise of signal Operation steps are 1 Set attenuation coefficiency of probe and CH1 channel as the above example 2 Connect signal to make waveform to display steadily on the oscilloscope Operation steps are referred to the above example and regulation of horizontal time base and vertical gear please refer to the corresponding description in th
68. phics the series of instrument possess functions as follows E Automatic measuring function E Cursor measuring function E Reference or mathematic function The following functions cannot work under x y mode E Window extension function E Horizontal knob POSITION Key Points Display format vector display will fill in blanks between neighboring sampling points and point display only display the sampling point Waveform capturing rate it means the frequency oscilloscope refreshes screen waveforms and it will affect the ability to fastly observe signal dynamic changes UTD2000M User Manual Set storage system As shown in the following picture the STORAGE storage in control area is the function key of storage system You can store waveform of setting status of oscilloscope into the inner storage area of USB by using key to display storage setting menu and can fetch the stored waveform from it with RefA or RefB or fetch setting status from setting option menu with key STORAGE when plugging in USB you can store waveform display area into USB with the bitmap format Operation steps Pressing STORAGEto enter into type of menu reference waveform setting and bitmap 1 choosing the reference waveform to enter into the following waveform storage menu as shown in 2 16 fetch the reference waveform from REF menu Reference waveform page xx after storing it and details are referred to REF operation steps
69. picture detail Referred screen to picture 2 15 Horizontal control key menu MENU displaying horizontal menu referred to the following form Picture 2 15 screen diplay of extended window UTD2000M User Manual There are 2 displaying areas in the screen as shown in the above picture under the extension window mode The upper part displaying the original waveform can shift left and right with the horizontal shift knob POSITION or magnify and reduce the selection area with shift knob SEC DIV The lower partis a horizontal extension waveform It is worthy to note that resolution of the extension time base shall be increased relative to the main time base as shown in the above picture as the waveform displayed in the whole lower part correspond to selected area in the upper part extension time base could be increased by revolving the horizontal knob SEC DIV to reduce the seletion area namely increasing the horizontal extension times of waveform Note the maximum extension time base is 50ns div Setting trigger system Trigger dicides when oscilloscope starts to collect data and display waveform The oscilloscope will transform the unsteady display into meaningful waveform if the trigger has been set correctly In collecting data instrument firstly collect enough data to draw waveform on the left of trigger point then wait for the trigger condition to occur and to continuously collect data at the same time
70. protection screen 2 Please power off when clean the instrument with the wet cloth without dripping The soft detergent or clean water could be used to clean the instrument instead of any corrosive chemical detergent which might damage the instrument or probe 87 88 Warning before using the instrument after being powered on again please confirm that the instrument has been dry to guard against the electric short circuit or even the personal hurt caused by the water Appendix D Factory Setting The appendix shall introduce to you the changes of relevant settings when you press the key UTILITY Ex factory setting please refer to the next table UTD2000M User Manual System Function Factory setting CH1 5Vidiv CH2 5Vidiv Coupling mode AC1MQ Vertical Bandwidth Restriction full bandwidth System VOLTS DIV Coarse tuning Probe 1X Opposite Phase off Bias voltage off MATH REF off System Function Factory setting Horizontal Horizontal time base 500us div System Horizontal shift Horizontal midpoint Load off time Minimum 100 0000ns Trigger type Edge Trigger Information source CH1 99 Coupling mode DC system Trigger mode Automatic Slope types Rising Display types YT Show format Vector Afterglow Automatic Waveform brightness 88 Storage type Setting Frequency meter On Nieasuremeant O
71. r parameters MULTI PURPOSE move the cursor and set numeric parameter value of some menu options or multi option menu and press the knob to confirm VERTICAL POSITION move the chosen vertical position of the waveform and press the knob then the channel will show the position is back to the vertical midpoint of the screen HORIZONTAL POSITION move the horizontal display position of the trigger point and press the knob then the pregrigger point will is back to the vertical midpoint of the screen RIGGER LEVEL regulate the trigger point of waveform and press the knob to set the trigger level to 50 or vertical reference dead level RUN STOP run or stop the waveform data collecting AUTO based on the input signal to auomatically regulate the vertical scale coefficiency sanning time base and trigger modes until the proper waveform display INGLE set the instrument as the single trigger mode FORCE be forced to run a immediate trigger event HELP provide detailed instructions about the menu after open it HORIZONTAL SCALE regulate the horizontal scale coefficiency VERTICAL SCALE regulate the vertical scale coefficiency of the chosen waveform CH1 and CH2 open or close the chosen channel MATH open or close the mathematical function REF display the reference waveform menu UTD2000M User Manual PrScrn print the displayed content on the screen into the USB flash disk COARSE control the coarse and fine
72. rage depth UTD2000CM Single channel normal 6kpts depth 16Mpts Double channel normal 6kpts depth 8Mpts UTD2000HM Single channel normal 6kpts depth 8Mpts Double channel normal 6kpts depth 4Mpts Waveform capturing rate 150000wfms s Scanning scope s div 2ns div 50s div under 1 2 5 system Sampling rate and delay time 50ppm any time interval 2 1ms Time interval AT measure accuracy full bandwidth Single 1 sampling time intervalt50ppm Xreading 0 6ns gt 16 average value 1 sampling time interval 50ppmx reading 0 6ns 81 82 UTD2000M User Manual Vertical T UTD2102HM UTD2082HM UTD2062HM UTD2042HM ada Ue 220M AUDA 92CM UTD2102CM UTD2082CM UTD2062CM UTD2042CM Analogdigital converter A D 8 bit resolution Deflection scale coefficiency f f V div scope Vidiv 2mV div 10V div at the input BNC port Shift scope 8div Analog bandwidth 200MHz 150MHz 100MHz 80MHz 60MHz 40MHz Single bandwidth 100MHz 100MHz 100MHz 80MHz 60MHz 40MHz Analogbandwidth restrictions for choice typical 20MHz Low Frequency response AC value sampling mode 3dB S10Hz above BNC Rise time 1 8ns 2 3ns 3 5ns 4 3ns 5 8ns 8 7ns DC current gain accuracy Vertical sensitivity is 2mV div 4 sampling or average value sampling mode Vertical sensitivity is 10mV div 10V div 3 sampling or average value sa
73. regulation of the cursor and multi knob STAT THE BUTTON open close the instrument USB HOST used to connect with the USB flash disk Initial knowledge about the vertical system In the vertical control area lays a series of keys and knobs as it is showed in the following picture The following practices shall guide you to know better of the use of vertical setting POSITION POSITION omy VO mv VOLTS DIV VOLTS DIV Picture 1 1 vertical control area of the front board UTD2000M User Manual Move the knob VERTICAL POSITION to move the waveform vertically and press the knob the channel display position will be back to the vertical midpoint Keys like CH1 CH2 REF MATH will display the vertical channel operation menu and open or close the channel display waveform SCALE set the vertical scale coefficiency 1 To press the vertical displacement knob POSITION to make the waveform to display the signal in the centre of the window and regulate the vertical position knob POSITION to control signal vertical display position the reference sign of channel ground level will move up and down with the waveform when revolve the vertical positon knob POSITION 2 To changes the vertical system s setting and observes changes of the status information You can confirm changes of any vertical gear position based on the information showed in the status bar below the waveform
74. riod is equivalent to the DC voltage that produces the equivalent energy namely the root mean value Automatic measurement of time parameter RiseTime FallTime 1 1 l 1 i i I L i I 1 I I 1 i i le GWidth e Width i j Picture 2 26 Time Parameter Diagram UTD2000M series could automatically measure 9 time parameters signal frequency period rise time fall time width width delay duty and duty definition about the time parameters are as follows UTD2000M User Manual RiseTime Time for waveform amplitude to rise from 10 to90 FallTime Time for waveform amplitude to fall from 90 to 10 Width The width when width is at the 50 aplitude Width The width when width is at the 50 aplitude Delay rising or falling edge The delay time from waveform to waveform during advanced measuring Duty Ratio of Width to period Duty Ratio of Width to period Cursor Measurement Press key CURSOR to display the measuring sursor and cursor menu and then regulate the cursor postion with multipurpose knob controller Two CURSOR modes could measure by shifting the cursor voltage and time In measuring voltage select cursor type as voltage and regulate two cursors by pressing key SELECT and revolving knob MULTIPURPOSE respectively namely to measure the AV and select time to measure At There are two modes of cursor indepe
75. rmation Complete the choice of measuring phase difference waveform measurement point and back to measurement menu 47 48 Parameter setting could be used for parameter quick measurement the instrument normally contains 24 measurement parameters and 2 advanced measurements delay phase normally in detecting user needs only to measure several and designates those parameters as parameter setting instead of all parameters the set parameter shall display on the screen Selection and deletion of the parameter settings shall follow the following steps 1 Press key MEASURE to display automatic measurement menu and to select setting parameter option the setting parameter option dialogue box will pop out on the screen 2 Select and confirm by revolving the knob MULTIPURPOSE multipurpose and after the setting parameter selection press key F5 to close setting parameter dialogue box 3 If itis need to alter any measurement options say UTD2000M User Manual frequency just follow step 1 and select frequency option in the poped up setting parameter dialogue box thus deleting the frequency option displayed below the screen 4 The way to set parameters to measure different channels are press once CH1 if need to measure CH1 color of measurement types in the measurement dialogue box will be blue and the chosen measurement parameters are blue font as shown in 2 20 Similarly press CH2 the setting parameters are
76. rminal with PROBE COMP probe compensation signal connection strap 3 Press the button AUTO automatical setting and the aquare wave about 3Vpp 1kHz shall be shown on the screen 4 Press the button CH1 once to shut the channel 1and press the button CH2 once to open the channel 2 5 Press the function key UTILITY press F5 and then press F2 to enter the Auto strategy and open all settings repeat the step 2 and 3 Probe compensation When firstly connect the probe with any input channels it is needed to coordinate the probe compensation to match the probe with the input channel Measuring error or mistakes might be resulted in if fails to complete the compensation adjustment of the probe Please follow the steps as follows to coordinate the probe compensation 1 to set the attenuation coefficient of the probe menu UTD2000M User Manual as 10X and the probe switch 10Xand connect the oscilloscope probe with the CHichannel Make sure the contact with probe is stable if use the hook like probe To connect the probe tip with the signal input connector of the probe compensator and connect the ground clamp with the grounding terminal of the probe compensation connector then open the CH1channel and press the button AUTO 2 Observe the shown waveforms HA FLL rut Over compensation Correct compensation Under compensation Piture 1 1 Probe compensation adjustment 3
77. sequence are required to be the first pulse trigger Picture 2 16 Vedio trigger horizontal synchronous hormi IRI EUP Form 2 13 trigger load off menu Function menu Setting Instrucition Window a5 Press key F1 into Main Window Window Enter into window extension extension a menu shown in form 2 13 Load off time 100 0000ns Regulate the load off tiem with 1 50000s knob MULTIPURPOSE Picture 2 17 Vedio trigger vertical synchronous 35 36 Picture 2 18 trigger load off could be used to synchronize with complex waveform Instrucition 1 Choosing edge trigger source in the trigger MENU in accordance with normal signal synchronous method firstly and regulate trigger level to stabilize waveform 2 Press down horizontal horizontal menu MENU key to display 3 Regulating knob MULTIPURPOSE on the upper UTD2000M User Manual part of board the trigger load off time shall change with it and until the waveform displaying is steady Operation techniques load off time is normally slightly shorter than that of Grand Period ex to observe waveform of rs232 communicaition signal and the load off time is slightly longer than that of each frame starting from the edges which are easily being observed Nouns Explanation 1 Trigger Source producing signalto trigger Trigger could be obtained from many information sources input channel CH1 CH2 ext
78. splay input and output characteristics of the circuit in the mode of Lissa jous 5 8 Regulate vertical scale and vertical position knob to make waveform of best effect 5 9 Measure and calculate the phase difference by elliptic oscillogram The level of the signal must be centered Diagram 3 8 Signal have to be centered horizontally UTD2000M User Manual According to sin6 A B or C D of which 8is the phase difference angle and definitions of A B C Dare referred to the above picture so phase difference angle arcsin A B or8 arcsin C D If main axis of elliptic is within I III quadrants the phase difference angle shall bein the IV quadrants namely O tr 2 or 311 2 2tr and if main axis of elliptic is within Il IV quadrants the phase difference angle shall be in the Il III quadrants namely 1 2 T or 11 311 2 and if frequency or phase deffectence angle of the two signals being detected are integral multiples frequency and phase relationship could be calculated by the diagram 5 10 X Y Phase Difference Diagram Frequency Phase location difference ratio of signal 360 0 45 90 180 270 any aa ja a Example 6 vedio signal trigger Observe some vedio circuit and apply vedio trigger to obtain stable frequency output signal display Vedio vertical trigger Please operate under the following steps if want to trigger at the vedio vertica
79. t one cursor the cursor shall be a solid line and revolve the konb MULTIPURPOSE to shift cursor position 2 Two options for raio 0 and 100 The present postion 100 means to setAvalue between the two function key To pop out auxiliary system function setting menu with the key UTILITY UTD2000M User Manual Form 2 28 Auxiliary Function Menus 1 Menu Function Setting Instruction Self tuning system Implement self tuning information Display information such as machine mode version and serial System configuration Delete information number Delete the stored reference waveform and setting Interface setting Time setting Enter into date and time setting in form 2 28 Factory reset Restore the factoryreset and in appendix E Contrast Regulate contrast of the screen Language Select language with the knob MULTIPURPOSE and press down nterface style Menu display Grid Brigtness Back it to confirm Classic traditional and modern Set the wait time formenu closing 5s 10s 20sand automatic It cannot be automatically closed with manual control but by MENU ON OFF to close or open Regulate grid brightness in display area with the knob MULTIPURPOSE Back to the auxiliaryfunciton menu By detecting On Off Detect if the input signal is within the stipulated scope Waveform recording Form 2 27 Set to operate waveform recording Next page Enter to next page
80. taeeeeeetieeeeeesiaeeeeestnieeeeenenaes 2 Operate the self tuning program cccecceeeeeeeceeeeeeeeeeesecaeeeseseeseeneetteaeeneaes 3 Automatic setting for the waveform display cc ccceseeceeeeeeeeeeeeeeteeeeeenees 4 Regulate time and date of the OSCIIIOSCOPE 00 2 ee eee eeteeeeeeeetteeeeeetttteeeeeenaes 4 Initial Knowledge about the operation board of the oscillscope 0 000 5 Initial Knowledge about the trigger system 0 ce cceececteceeeeeeeeeeeeeeneeeaes 11 Chapter II Instrument Setting 0 ccccccce cece ee eee eee e eee ecce 13 Waveform brightness Setting sincerer n edane ATEAK 13 Setithe vertical SYSt6M wives ssdcdsiadcsenavedsdscidiaaensabalisebaehiasdsiehaddevieseeds 14 Set horizontal system UTD2000M User Manual Item Preface Chaptelll Contents Page Setting trigger SYStOM cccececeeeeeeee eee eeeeeeceeeeeeecaaeeeescaaeeeeesaaeneeeseaaneees 29 SetSampling SYSte mis accsts asaieisce det Meeeels a dads Gide iai 38 Set display SYStem cccescececeeeeeeeeeeceeeeeeeaeeeceeeeecaaeedeaeeeseaeeeseaaeeeseeeeetiaeeeeaes 40 Set storage SySteMs sissiniesivtee niin a RN ANNEE 43 Automatic Measuring secina n e a E A 46 Cursor Measurement ninen aaea E E 51 Auxiliary Function SettinQtiicscnsiicivisenent leis dienes 52 AUTOMATIC Seting se000 cccc0e ssesieerensedetesnnedoceedenbonesesssnnesnenseooneedetes ocenneads aenean aE 57 application CxAMPleS cece e
81. tal time base to improve horizontal resolution The display could be improved 7 2 Maybe the display type is vector and the lines between sampling points results in staircase form display of the waveform It shall be resolved by setting display type as the point display mode ChapterV Service and Support Section 1 Product program upgradation Acquired the program upgradation package by two ways from UNI T company market department or via company website the user can upgrade program of the present oscilloscope by the embedded program upgradation system in the oscilloscope to make sure that program of the present oscilloscope is the newly published program version of UNI T company Preparations before upgradation 1 Own an oscilloscope and acquire and record the type hardware and software vision information of the present oscilloscope through the system information menu box under the UTILITY menu 2 To acquire from UNI T company market department or via company website the program upgradation package that type and hardware 77 78 upgraded and software version is bigger than that of the present oscilloscope 3 To prepare a U disk with the format being FAT or FAT32 and store the acquired program upgradation package that uncompressed into the root catalogue of the U disk with the suffix uts Program upgradation conditions 1 Product type of the program upgradation package shall be in accord with that of the oscill
82. te and time after completion of the setting Initial knowledge about the operation board of the oscilloscope You need to know about the front operation board when you get get the UTD2000M digital storage oscilloscope The section will present brief description and introduction about the operation and function of the front operation board of UTD2000M digital storage oscilloscope thus enabling you to be familiar with the operation of UTD2000M digital storage oscilloscope in the shortest time UTD2000M digital storage oscilloscope provides users simple and functionally clear front board to operate it conveniently The board includes knobs and function keys function of the knobs are similar to that of other oscilloscopes On the right side of the screen lies a line of 5 menu operation keys F1 to F5 from top to bottom and other keys on the board are menu function keys by which you can enter into different function menu or directly aquire the specific function application and choose the function by keys from F1 to F5 on the right side of the screen after entering into the function menu 4 UNI T UTD2000M DIGITAL STORAGE OSCILLOSCOPE Fi F2 F3 F4 F5
83. th overshoot impulse preshoot duty duty delay advanced measurement and phase advance measurement Mathematic operation Add minus times divide and opposite phase Store oscilloscope 10 groups of waveforms 10 types of settings FFT Window Hanning Hamming Biackman Harris Rectangular Sampling points 1024 points Lissajous diagram Band width 100MHz Phase difference 3 degrees dispaly Display types Diagonal 178 mm7inch TFT LED Display resolution display 800 horizontal pixel x RGB Xx 480vertical pixel Display color 64Kcolor Waveform displaying 12grids each50 dots vertical 8 grids each 50 dots 85 86 Probe compensator output UTD2000M User Manual Mechanical specification Output voltage typical About 3Vp p load 21MQ frequency typical 1kHz Port function Standard configuration 1 USB D 1 USB H Pass Fail Width 330mm Size Height 155mm Depth 130mm Exclusive Weight of package 2 9kg net weigh Inclusive 5 0kg of package Select fittings LAN GPIB RS232 Power Power voltage 100 240VACrms 45 440Hz Electricity consumption No more than 40VA IP protection Fuse F1 6AL 250V on the power panel in the machine IP2 X Regulate Environment Be recommended to regulate Temperature Operate 0 C 40 C Non op
84. ton AUTO and then the instrument shall show the proper waveforms and the gear settings Apart from the usability UTD2000M series of digital storage oscilloscope possess high efficiency index and powerful functions which is necessary for quick measuring The quicker signal might be observed on the UTD2000M series of digital storage oscilloscope through the 1GS s real time sampling and 50GS s equivalent time sampling The powerful trigger and analysis ability shall make it UTD2000M User Manual easier to capture and analyze the waveform The clear liquid crystal display and mathematical operations enable users to observe and analyze the signal problems more quickly and clearly How the series of digital storage oscilloscope will meet your measuring needs will be known from the following functional features Double analog channel 7 inch TFT liquid crystal display with the resolution up to 800 x 480 enabling the display effect clearer With the waveform capture rate up to 150 000 wfms s 75 times higher than that of the same types of product With the storage depth up to 16Mpts enabling the oscilloscope to maintain the highest sampling rate in a wider time based scope and the overall and details of the waveformforms Subtle window extended function and accurate analysis of the waveform detail and profile UTD2000M User Manual With bountiful trigger functions including edge vedio pulse width slope and
85. ture 2 12 mathematical operation UTD2000M User Manual 1 Picture 2 2 mathematic operation instruction Function Menu Setting Instruction Types math Operations x CH1 et operand1 as the CH1 Operand 1 channel waveform CH2 Set operand as the CH2 channel waveform operand1 operand2 operand1 operand2 PPpalsiet x operand1Xoperand2 operand1 operand2 CH1 Set operand2 as the CH1 Operand 2 channel waveform CH2 Set operand2 as the CH2 waveform 1 1 Scaling the waveform Scaling Ratio 1 10 according to the ratio four 1 100 ratios 1 1 1 10 1 100 1 1000 1 1000 FFT frequency spectrum analysis To change the time domain signal YT into frequency spectrum signalby using the fft fast foourier transformation mathematic operation You can conveniently observe the following types of signal with the FFT Measuring harmonic waves and distortion in the system Showing the noise property in the system Analyzing vibration Basic frequency component 1kHz h 4 IEI TE lew A Picture 2 13 FFT frequency spectrums 21 Form 2 3 FFT menu instrucition Function Menu Setting Instruction Types FFT FFTmathematic operation CH1 Set CH1 as the operation Information waveform Source CH2 Set CH2 as the operation waveform Hamming Set Hamming window function Window Blackman Set Blackman window function function Rectangle Set Rectangle window function Hanning S
86. ulse Equiamplitude sine wave with quite similar basically similar to the status frequency shall have bandwidth random noise of spectrum of non add window that shifts quite slowly Hanning Compared with the rectangle window it has quite good frequency resolution and quite poor amplitude Sine period and narrowband random noise Signal level resolution varies greatly before and after the transient or short pulse Hamming Frequency resolution of the Hamming window is slightly better than that of Hanning window Blackman The best amplitude resolution and the Mainly used for single frequency signal to find higher level worst frequency resolution of harmonic wave 23 24 Nouns explanation FFT resolution It means the quotient between acquisition and operation when the operation points are fix the lower the acquisition rate is the better the FFT resolution is NYQUIST frequency It shall need at least 2f acquisition rate to reconstruct the orinal waveform for the waveform being the highest frequency It is also been called NYQUIST norm f here is the NYQUIST frequency and 2f is the NYQUIST acquisition rate Digital filtering functio hormi IEI F SOL YCUas Won ia tues DHI rulo DCU ty Picture 2 14 Digital filtering UTD2000M User Manual UTD2000M User Manual Form 2 5 Digital filtering menu instruction Menu Function Setting Instruction Types Digital filtering Digital filterin

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