Introduction Dear users: Thank you for purchasing UNI-T product. To operate the instrument correctly, please read this Operating Manual carefully and especially its “Safety Notice” before use. Afer reading it, you are suggested to keep the manual properly. Please keep it with the instrument together or place it in an accessible location for future use.
Operating Manual for UTD2000/3000 General Safety Overview The instrument is designed and manufactured strictly according to “Safety Requirements of Electronic Measuring Instruments” (GB4793) and IEC61010-1 Safety Standard . It conforms to “Insulation Overvoltage Standard” (CATĊ 600V) and Safety Standard with Pollution Level ĊYou are expected to know the following safety precaution measures to avoid personal injury or product damage or any other product connected to it.
Operating Manual for UTD2000/3000 Usage of appropriate fuse: It is only allowed to use fuse type and rated indicator designated by the product. To avoid exposed circuits: It is not allowed to touch exposed connector or element after power supply. Operation is not allowed if there is any doubt for product trouble: Please consult qualified maintenance personnel to inspect the product if there is any trouble doubt. It has to maintain appropriate ventilation. It is not allowed to operate in wet locations.
Operating Manual for UTD2000/3000 Safety Terms and Symbols Terms in the manual: The following terms may be seen in the manual: Warning: Warning statement means the conditions and behaviors that may endanger lives. Note: Notice statement means the conditions and behaviors that may cause other property damage Terms for products: The following terms may be Danger: It refers to direct injury near the mark. Warning: It refers to potential injury near the mark.
Operating Manual for UTD2000/3000 Preface The manual is about operation information of OPERATING MANUAL FOR UTD2000/3000 digital storage oscillograph. The manual includes the following chapters Chapter 1: User Guideline: It is to introduce functions of digital storage oscillograph easily and provide installation guidelines. Chapter 2: Instrument Setup:Operation methods of OPERATING MANUAL FOR UTD2000/3000 digital storage oscillograph.
Operating Manual for UTD2000/3000 The manual includes 3 series of digital storage oscillograph as follows.
Operating Manual for UTD2000/3000 UTD2000/3000 series digital storage oscillograph provides simple front panel with clear functions to users for all basic operations. Scale and position of various channels can provide intuitional operation to meet usage habits of traditional instruments. Users can use it skillfully without learning and being familiar with operation for a long time. Users can also press AUTO key directly to accelerate adjustment and facilitate measurement.
Operating Manual for UTD2000/3000 Ɣ Elaborate view window extension function for delicate analysis of waveform details and profile Ɣ Automatic measurement of 28 kinds of waveform parameters Ɣ Automatic cursor tracing and measurement function Ɣ Unique waveform recording and playback functions Ɣ Embedded FFT Ɣ Multiple mathematical calculation functions (including +, -, h r for waveform Ɣ Edge, video, pulse width and ALT TRIG functions Ɣ Multi-language menu display Fittings of UTD2000/3000 series digital stor
Operating Manual for UTD2000/3000 Contents Page Item General Safety Overview Preface Chapter 1: User Guideline ................................................................................... 1 General Inspection ........................................................................................... 5 Function Inspection .......................................................................................... 5 Probe Compensation ...................................................................
Operating Manual for UTD2000/3000 Item Page Setup of Sampling System................................................................. 44 Setup of Display System.................................................................................... 48 Storage and Callout ........................................................................................... 50 Setup of Auxiliary Functions .............................................................................. 55 Automatic Measurement................
Operating Manual for UTD2000/3000 Item Page Examp Example 8: Pass/Fail Detection ........................................................ 83 Examp Example 9 : Usage of Upgrading Procedure of U disk ..................... 84 Example 10: Usage of Storage Function ...................................................... 85 Chapter 4: System Prompt and Troubleshooting ......................................... 88 System Prompt Information ...........................................................................
Operating Manual for UTD2000/3000 Chapter 1: User Guideline UTD2000/3000 series digital storage oscillograph is a small and handy desktop product. Basic test can be done by providing convenient front panel to facilitate operation for users. UTD2000/3000 series are to provide simple front panel with clear functions to users for basic operation. Panel also includes knob and function key. Knob functions are similar to those of other digital storage oscillograph.
Operating Manual for UTD2000/3000 multi-purpose common Operation controls knob controller menu trigger control horizontal control vertical control probe compensation signal output interface analog signal input EXT TRIG INPUT 5.
Operating Manual for UTD2000/3000 multi-purpose common Operation controls knob controller menu trigger control horizontal control vertical control interface 7 inch front panel of UNI-T 3 probe compensation signal output EXT TRIG INPUT analog signal input
Operating Manual for UTD2000/3000 display of trigger status mark of channel 1 display of horizontal trigger position time display of central scale line Menu varies with different function keys. waveform display window mark of channel 2 vertical scale coefficient of display channel display setup of main time base Interface display diagram of digital storage oscillograph (i.e.
Operating Manual for UTD2000/3000 General inspection It is suggested to inspect the instrument by following steps when getting a new UTD2000/3000 series digital storage oscillograph. 1. To check if there is damage due to transportation or not. Please replace carton or foaming plastic protection cushion with severe damage instantly. 2. Please inspect fitting details and shown it in “Fittings of UTD2000/3000 series digital Storage Oscillograph” shown in the manual.
Operating Manual for UTD2000/3000 power switch MULTIPUR POSE MEASURE CURS OR ACQUIRE STORAGE DISPLAY UTILI TY AUTO S EL ECT VERTICAL F1 HORIZONTAL P OSITIO N TRIGGER P OS ITIO N LEV E L F2 CH 1 HOR I MEN U MATH SET TRIG MEN U F3 CH2 S CAL E S CAL E FORCE F4 HELP V mV VOLTS D IV F5 CH1 S S function button SEC D IV CH2 Figure 1-4 Warning: Please confirm safety grounding of digital storage oscillograph to avoid dangers. 2.
Operating Manual for UTD2000/3000 ĸ In digital storage oscilloscope to set the probe Ĺ Connect probe and grounding clip to attenuation factor. The attenuation coefficient of vertical gear ratio change instruments, which makes measurement resultsSetup method of attenuation coefficient of probe is as follows to show amplitude of measured signals correctly. Please press F4 key for menu display of 10× corresponding connection ends then press [AUTO] button.
Operating Manual for UTD2000/3000 Probe compensation It needs to adjust it when connecting probe to any 2 Observation of displayed waveform input channel for the first time so that probe can be appropriate to input channel. Probe without compensation correction can also bring in measurement tolerance or error. Please operate according to following steps for adjustment of probe compensation: 1.
Operating Manual for UTD2000/3000 Automatic setup of waveform display UTD2000/3000 series digital storage oscillograph Elementary understanding of vertical system As shown in the following figure, there are a series has automatic setup functions. It can adjust vertical of keys and knobs in vertical control area. Please deflection coefficient, scanning time base and introduce usage of vertical setup gradually as trigger mode automatically according to input follows.
Operating Manual for UTD2000/3000 1. Use vertical position knob so that middle display Vertical position of double analog channels shall be of waveform signal in the window. Vertical display restored to short-cut key of zero pointnamely, position of signal can be controlled by vertical SET TO ZERO. position knob. The key is to return vertical displacement/horizontal Ground mark moves vertically with waveform when displacement/hold off position to zero point rotating vertical position knob.
Operating Manual for UTD2000/3000 Users can also press [OFF] key to close currently selected channels for UTD2000C/3000C and Elementary understanding of horizontal system As shown in following figure, there is 1 key and 2 UTD2000E/3000E oscillograph. They can also knobs in horizontal control area. Please be familiar click on CH1, CH2 and MATH keys twice to close with setup of horizontal time base gradually as corresponding channels for UTD2000L/2000EX follows: oscillograph.
Operating Manual for UTD2000/3000 1. Use horizontal SCALE knob to alter horizontal 3. Please press [MENU] button for 5.7-inch time base gear then observe alternation of status oscillograph (and press [HORI MENU] button for 7- information. To rotate horizontal SCALE knob to inch oscillograph) to display Zoom menu.
Operating Manual for UTD2000/3000 Trigger point can be restored to vertical middle point quickly by short-cut key of [SET TO ZERO] so as to restoring displacement of trigger point to horizontal zero point short-cut key. Users can also adjust horizontal position of signal in waveform Elementary understanding of trigger system As shown in Figure 1㧙 11 there is 1 knob and 3 (or 2) keys in control area of trigger menu.
Operating Manual for UTD2000/3000 1. To user trigger level knob to alter trigger level i n trigger signal amplitude. and instruct trigger level line by seeing trigger mark 4.To press FORCE button: To produce 1 trigger on the screen so that it moves vertically with knob signal forcefully for mainly application for normal rotation. Variation of trigger level in lower part of and single trigger mode. screen can be observed when moving trigger level at the same time. 2.
Operating Manual for UTD2000/3000 Chapter 2: Instrument Setup By now, you have been familiar with operation of vertical control area, horizontal control area and trigger system menu for UTD2000/3000 series digital storage oscillograph preliminarily. You should be familiar with setup of digital storage oscillograph by menu operation by introduction shown in previous chapter. It is suggested to read Chapter 1 if you have not been familiar with above operation and methods.
Operating Manual for UTD2000/3000 Setup of vertical system CH1 and CH2 channels and setup Every channel has its own vertical menu. Every item can be set individually according to different channels. As shown in Form 2-1, the system can display operation menu of CH1 or CH2 channel by pressing CH1 or CH2 function key. Form 2-1 Function menu Setup Description To obstruct DC component of input signal. DC To cut off input signals by AC Coupling Grounding and DC components of input signals.
Operating Manual for UTD2000/3000 1 Setup of channel coupling㧦 Measured signal is a sine signal with DC component Press F1 to DC to pass through DC and AC by taking exerting signal to CH1 channel as an Waveform display is also shown in following figure: components of measured signals of CH1 channel. example. To press F1 to select AC and AC coupling mode. DC DC coupling setup component contained by measured signal will be obstructed. Waveform display is shown in following figure.
Operating Manual for UTD2000/3000 (Note: Input signal still shall be connected to channel circuit under such mode although 2. Setup of channel bandwidth limit㧦 Input one sine signal of about 40MHz for CH1 as an waveform is not example. It has to press [CH1] to open CH1 channel then press [F2] to set bandwidth limit to OFF. Ground coupling setup Channel band width is full band width to pass through high-frequency components contained by measured signal. Waveform display is also shown in following figure.
Operating Manual for UTD2000/3000 for great attenuation of high-frequency component 3. Setup of multiplying factor for probe㧦 It has to set probe attenuation coefficient in and noise of more than 20MHz contained by operation menu of channel to coordinate with measured signals. Waveform display is also shown attenuation coefficient setup of probe. Probe in following figure.
Operating Manual for UTD2000/3000 4. Regulation setup of vertical volt/grid㧦 Volt/grid scope is 2mV/div㨪 V/div (or 10V/div), or 1mV/div㨪20 V/div with step 5 Setup of reverse phase of waveform Reverse phase of waveform: by way of 1㧙2㧙5 Deflection coefficient shall be displayed signals. Please refer to Figure 2㧙8 for altered within current vertical gear scope by less waveform without reverse phase.
Operating Manual for UTD2000/3000 I. Realization of mathematical calculation function Mathematical calculation functions are to show +, -, h, / as well as FFT calculation results for CH1 and CH2 channel waveform.
Operating Manual for UTD2000/3000 Form 2-2: Introduction to mathematical calculation Description Function Menu Setup , . - h-r Math Type CH1 Information source CH2 , . Operator Ø r Information source 2 CH1 CH2 To set information source 1 as Ch1 channel waveform. To set information source 1 as Ch2 channel waveform. Information source 1 , Information source 2 Information source 1 .
Operating Manual for UTD2000/3000 Form 2-3: FFT menu Description Function Type Information source Window Vertical unit 23 Setup FFT Description FFT mathematical calculation CH1 To set CH1 and CH2 as calculation waveform. CH2 Hanning Set Hanning window function Hamming Set Hamming window function Blackman Set Blackman window function Rectangle Set Rectangle window function Vrms To set vertical unit to dBVrm Vrms or dBVrms.
Operating Manual for UTD2000/3000 Selection of FFT window Mathematical storage oscillograph will carry out FFT conversion for time record with limited length when assuming continuous repetition of YT waveform. YT waveform will have the same amplitude in beginning and ending locations for no interrupation. However, high-frequency transient interruption will be caused in connector due to different waveform amplitudes for non-integral cycle of YT waveform.
Operating Manual for UTD2000/3000 Term explanation: FFT resolution: It is defined as factor of sampling and calculation point. FFT resolution increases when sampling rate decreases for fixed calculation point quantity. Nyquist frequency: Original waveform can not be reset until using sampling rate of at least 2f for waveform with the maximum frequency of “f”. It is also called as Nyquist guideline. “f” refers to Nyquist frequency and “2f” refers to Nyquist sampling rate.
Operating Manual for UTD2000/3000 information source 2 which participates in Function menu Setup calculation and method is the same to the display reference waveform menu. Setup is also 1 a 20 refer to positions of 20 groups of waveform respectively; There are 200 groups of Storage position 1a20 waveform positions for storage to USB; (Storage position and quantity vary withmachine model.) shown in following form. Form 2-5 Selection of storage position Magnetic disk secondstep.
Operating Manual for UTD2000/3000 Setup of horizontal system Horizontal control knob Control knob on horizontal surface can be used to opening extension time base. Please refer to alter horizontal scale (or time base) to trigger be displayed for horizontal control key menu. Form 2-6 horizontal position (or trigger position) shown in RAM. Vertical middle point toward horizontal direction on the screen is time reference point for introduction to extension time base for details.
Operating Manual for UTD2000/3000 Term explanation: Y-T mode: Y axle refers to voltage and X axle refers to time quantum under this mode. X-Y mode: X axle refers to CH1 voltage and Y axle refers to CH2 voltage under this mode. Slow scanning mode: Instrument will enter into slow scanning sampling mode when setting horizontal time base control to 100ms/div or less.
Operating Manual for UTD2000/3000 View window extension View window extension is to argument a section of waveform to review image details conveniently. Setup of view window extension can not be slower than that of main time base. Horizontal extension of the waveform Extension time base Horizontally extended part of the waveform Figure 2㧙1 2 Screen display under view window extension 29 (As shown in above figure), it can be divided into 2 display areas under extension time base.
Operating Manual for UTD2000/3000 will be displayed on Y axle after selecting X-Y display mode. functions do not effect during X-Y display. Ƶ Automatic testing mode Ƶ Cursor measurement mode Ƶ Reference or mathematical calculation waveform Ƶ View window extension function Ƶ Trigger control Figure 2㧙13 Waveform display under X-Y mode Note: Digital storage oscillograph can capture waveform by any sampling speed under normal X-Y mode.
Operating Manual for UTD2000/3000 Setup of trigger system Trigger can determine data acquisition time and waveform display for digital storage oscillograph. It which corresponds to trigger point. 50%: To set trigger level to vertical point of trigger waveform once correct setup. Digital storage signal amplitude.
Operating Manual for UTD2000/3000 Trigger control Trigger mode: Edge, pulse width, video and ALT TRIG; Edge trigger: Trigger when edge of trigger signal reaches a certain given level. Pulse width trigger: Trigger when pulse width of trigger signal reaches certain set trigger conditions Video trigger: Carry out field or line trigger for standard video signals. (UTD2025CL/UTD2000EXseriesis no such function.) ALT TRIG: It is appropriate to trigger signal without frequency relevance.
Operating Manual for UTD2000/3000 Function menu Type Selection of information source Gradient Trigger mode Trigger coupling 33 Setup Edge CH1 CH2 EXT EXT/5 Municipal power Alteration Ascend Descend Ascend/descend Automatic Normal Single AC DC High-frequency inhibition Low-frequency inhibition Description Set CH1 as trigger signal of information source. et CH2 as trigger signal of information source. Set EXT TRIG INPUT channel as trigger signal of information source.
Operating Manual for UTD2000/3000 Pulse width trigger Trigger time shall be determined for pulse width trigger according to pulse width. You can capture abnormal pulse by setting pulse width conditions. Form 2-8 (the first page) Function menu Type Selection of information source Pulse width conditions Setup Pulse width CH1 CH2 EXT EXT/5 Municipal power Alteration More than Less than Equal to Description To set CH1 as trigger signal of information source.
Operating Manual for UTD2000/3000 Form 2-9 (the second page) Function menu Type Trigger polarity Trigger mode Trigger coupling Previous page 2/2 35 Setup Description Pulse width Positive pulse width Negative pulse width Automatic Normal Single DC AC High-frequency inhibition To set positive pulse width as trigger signal; To set negative pulse width as trigger signal; The system will acquire waveform data automatically and display scanning base line on the screen without trigger signal input.
Operating Manual for UTD2000/3000 Video touch To trigger in field or row with NTSC or PAL standard video signals after selecting video trigger for UTD2025CL oscillograph shown in 5.7-inch or 7-inch screen. Trigger coupling is pre-set to DC. Please refer to following form for trigger menu. Form 2-10 Setup of video trigger Function menu Type Selection of information source Setup Pulse width CH1 CH2 EXT Alteration To set CH1 as trigger signal of information source.
Operating Manual for UTD2000/3000 Please refer to Figure 2-14 for screen display when selecting standard system of PAL and row synchronization as synchronization mode. Please refer to Figure 2-15 for field synchronization of synchronization mode. Figure 2㧙15 Video trigger: Field synchronization ALT TRIG mode ALT TRIGTrigger signal comes from 2 vertical channels during ALT TRIG.
Operating Manual for UTD2000/3000 Setup of trigger coupling mode Please enter into trigger setup menu for setup of trigger coupling mode and gain the most sform synchronization. Please refer to following form for menu of trigger coupling mode. Figure 2㧙16 Observation of 2 signals with different frequency by. Form 2-11 Trigger alternation menu Function menu Type Setup Edge Description Set trigger mode to edge ALT TRIG of CH1 and Alternation CH2 Gradient Ascending Set trigger gradient to ascending edge.
Operating Manual for UTD2000/3000 Form 2-12 Function menu Type Trigger source Gradient Trigger mode Coupling 39 Setup üü Description üü üü üü Set pass-through obstruction of DC components. AC Set pass-through of all components. DC High-frequency inhibition Obstruct pass-through of high-frequency part of signal. Only lowfrequency components can pass through. Low-frequencyinhibition Obstruct pass-through of low-frequency part of signal. Only highfrequency components can pass through.
Operating Manual for UTD2000/3000 Adjustment of hold off time Adjustment of hold off time can be used to observe complex waveform (such as pulse string series). Inhibition time refers to waiting period of digital storage oscillograph to start up trigger circuit again. Digital storage oscillograph will not trigger until inhibition time ends during inhibition period.
Operating Manual for UTD2000/3000 Trigger Holdoff Figure 2—17 Hold off used for synchronization of complex waveform Operation Description 1. To select edge, trigger source and gradient shown in TRIG MENU according to synchronization mode of normal signal then adjust trigger level for stable waveform display as practicable as possible. 2. To press HORI MENU key to display horizontal menu. 3.
Operating Manual for UTD2000/3000 connected to EXT TRIG interface. Signal can be used for EXT and EXT can be used within signal trigger level scope of -3V to +3V. It is allowed to select EXT/5 for oscillograph of 5.7inch screen. Outer trigger shall be divided by 5 so that trigger scope can expand to -15V to +15V for trigger of digital storage oscillograph under large signal. Ƶ Municipal power: Such trigger mode can be used to observe signal with regard to municipal power.
Operating Manual for UTD2000/3000 3. Trigger coupling: Trigger coupling can determine review more pre-trigger details. You can observe category of signal component conveyed to trigger waveform in ahead of trigger by observing pre- circuit. Coupling types include DC, AC, low- trigger data. For instance, burring reason can be frequency inhibition and high-frequency inhibition. Ƶ Pass through all components of signals under shown by observation and analysis on pre-trigger DC mode.
Operating Manual for UTD2000/3000 Setup of sampling system As shown in following figure, ACQUIRE in control area is function key of sampling system. Figure 2㧙18 Function key of sampling system User can use ACQUIRE key to pop out sampling setup menu so as to adjust sampling mode by control button shown in the menu.
Operating Manual for UTD2000/3000 Form 2-14 Sampling menu Function menu Obtainment mode Average times Sampling mode Fast acquisition 45 Setup Description Sampling Activate ordinary sampling mode. Peak-value detection Activate peak-value detection mode. Average Set average sampling mode and display average times. 2~256 Real-time Equivalent ON Set average times for step by multiples of 2, namely, 2, 4, 8, 16, 32, 64, 128 and 256.
Operating Manual for UTD2000/3000 It has to observe waveform display variation by altering obtainment mode. Please refer to Figure 219 and 2-20 for sampled waveform display if signal contains large noise when adopting 32 times of average mode or without adopting average mode. Figure 2-20 Waveform by adopting 32 times of average mode Note㧦 1 Please select real-time sampling mode for observation Figure 2㧙19 Waveform without adopting of single signal. 2.
Operating Manual for UTD2000/3000 Term explanation Real-time sampling: It refers to data required for once acquisition. Equivalent sampling: It refers to repeated sampling mode. It can facilitate careful observation of repeated periodic signals. It can be adopted to gain horizontal resolution which is higher than real-time sampling resolution greatly. Sampling mode: It can be classified into equivalent and real-time modes.
Operating Manual for UTD2000/3000 Setup of display system As shown in following figure, DISPLAY in control area is function key of display system Figure 2㧙 Function key of sampling system Please press DISPLAY button to pop out setup menu shown in following figure. Display mode can be adjusted by pressing menu control button.
Operating Manual for UTD2000/3000 Form 2-15 Display menu Function menu Display type Format Continuous Waveform brightness Setup Vector point YT XY Close 1s 2s 5s Infinite 1% - 100% Descriptions Only to display sampling points by wiring.
Operating Manual for UTD2000/3000 Storage and callout As shown in following figure, STORAGE in MENU Operation steps㧦 Please press STORAGE Enter into type menus. control area is function key of storage system. There are 3 types, namely, waveform, setup and bitmap. 2. Please refer to Figure 2-16 for selection of type waveform and entry into following waveform storage menu. Please call out REF (reference waveform shown in the second page) from Section 2 of the chapter after saving waveform.
Operating Manual for UTD2000/3000 Form 2-16 Function menu Type Information source Storage position Save Next page 1/2 Setup Waveform CH1 CH2 1 a 20 1 a 20 refer to positions to store 20 groups of waveform. There are 200 groups of waveform positions for storage to USB. (Storage position and quantity vary with machine model.) üü Save waveform üü Enter into next page. Figure 2-23 Waveform storage 51 Description Select waveform storage and callout menu Select waveform from CH1 channel.
Operating Manual for UTD2000/3000 Form 2-17 Storage menu (the second page) Function menu Setup Magnetic disk DSO USB Storage depth Previous page 2/2 Ordinary Long storage üü Description To select internal RAM of digital storage oscillograph then select external U disk. (This function can not be used until plugging in U disk.) To set storage depth to ordinary; (Callout only can be done in REF area when saving data to U disk.) To set storage depth to long storage.
Operating Manual for UTD2000/3000 2 As shown in Form 2-18, please select setup and enter into setup storage menu. Figure 2-25 Storage setup Form 2-18 Setup of storage menu Function menu Setup Setup Setup of (storage position) 53 Description To select panel setup menu. 1̚20 Operation setup to save 20 groups of panels: To select by multipurpose knob in upper part of front panel.
Operating Manual for UTD2000/3000 3. As shown in Form 2-19, please select bitmap for entry into bitmap storage menu. Remark: This function can not be called out until plugging in U disk. Form 2-19 Bitmap storage menu Function menu Bitmap üü Storage position Setup 1̚20 Save üü Description Select bitmap menu 200 bitmap data can be saved by selecting multi-purpose knob in upper part of front panel. (It is 1 to 10 for UTD2000C series.
Operating Manual for UTD2000/3000 Setup of auxiliary functions As shown in following figure, UTILITY in MENU control area is function key. Function menu Self-correction By detection Figure 2㧙27 Function key (and function) of sampling User can press UTILITY key to pop out setup menu of auxiliary system function. Form 2-20 (the first page) 55 Setup Execution Description To carry out self-correction. To cancel self-correction and return to previous page. To set waveform Pass/Fail.
Operating Manual for UTD2000/3000 Form 2-21-1 (the second page) Setup Function menu Fast correction Interface style Gridding brightness Next page 2/3 ON/OFF Description Activate/inactivate fast correction function of channels within scope of 2mV/div to 10 mV/div. (Only UTD2025C/3025C has this function.) The first style The secondstyle Set 4 interface styles for digital storage oscillograph. The third style The fourth style 1% - 100% üü Adjust gridding brightness of the screen by multi-purpose knob.
Operating Manual for UTD2000/3000 Form 2-22 Waveform recording menu Function menu Setup Information source CH1 CH2 CH1+CH2 ƽ Ƶ 57 Record by pressing recording key for synchronous display of recorded quantity in lower part of the screen. 1. Playback key; 2. Press the key for playback and display of current playback screen No. in lower right corner of screen. Playback can be stopped by rotating multi-purpose knob controller in upper part of panel.
Operating Manual for UTD2000/3000 Form 2-23 By detection Function menu Detection status Setup Open Close Description Open/close information of waveform pass/fail times Information source CH1 CH2 MATH RefA RefB Select CH1 as detected signal source. Select CH2 as detected signal source. Select MATH as detected signal source. Select RefA as detected signal source. Select RefB as detected signal source.
Operating Manual for UTD2000/3000 Form 2-24 Template setup Setup Function menu Template output Horizontal Vertical Return Description Set horizontal and vertical Pass/Fail tolerance scope according to adjustment 1-200Pixel Set horizontal tolerance scope 1-100Pixel Setvertical tolerance scope Return to Pass detection menu Key note:Key note: Self-correction: Self-correction procedure is to correct measurement error caused by digital storage oscillograph due to ambient variation.
Operating Manual for UTD2000/3000 Automatic measurement As shown in following figure, MEASURE is Application example automatic measurement function key. You can be can be used to measure 28 kinds of waveform familiar with powerful automatic measurement function of UTD2000/3000 series digital storage oscillograph gradually by following introduction. Measurement menu of such series of oscillograph parameters. User can press MEASURE key Enter into parameter measurement display menu firstly.
Operating Manual for UTD2000/3000 press F5 to select “All parameters” to display all The secondexample: Setup of delay measurement: voltage/time measurement parameters. User can Delay measurement function is used for interval press F2 to select channel to measure. (Channel is between ascending edges of 2 information sources, ineffective until opening.
Operating Manual for UTD2000/3000 Automatic measurement of voltage parameters Voltage parameters which can be measured by bottom to GND (ground); Overshoot: Ratio of difference of the maximum UTD2000/3000 series oscillograph automatically waveform value and top value and amplitude; Preshoot: Ratio of difference of the minimum are as follows: Peak value (Vpp): Voltage from the highest waveform point to the lowest waveform point; The maximum value (Vmax): Voltage from the highest waveform point to GND (gr
Operating Manual for UTD2000/3000 Automatic measurement of time parameters UTD2000/3000 series oscillograph can measure descending edge to descending edge; Positive duty cycle (+Duty): It refers to ratio of signal frequency, cycle, ascending time, positive pulse width and cycle; Negative duty cycle (-Duty): It refers to ratio of descending time, positive pulse width, negative pulse width, delay (of 9 combinations), positive duty cycle, negative duty cycle and 10 time parameters automatically.
Operating Manual for UTD2000/3000 Form 2-25 Function menu Return Information source Setup Description Return to parameter measurement display menu. CH1 Select channel of measurement parameters. CH2 Select channel of measurement parameters. Enter into voltage parameter menu. Voltage kind Time kind All parameters Enter into time parameter menu. Display/close all measurement parameters. Of which: Menu included by “voltage kind” is shown in Form 2-26 to 2-29.
Operating Manual for UTD2000/3000 Form 2-27 Function/measurement item Previous page Average value Peak value Root-mean-square Next page (2/4) Description Return to previous page. Return to parameter measurement display menu and substitute original position parameter after selection. he same as above he same as above Page turning Form 2-28 65 Function/measurement item Previous page Top value Description Return to previous page.
Operating Manual for UTD2000/3000 Form 2-29 Function/measurement item Previous page The maximum value Description Return to previous page. Return to parameter measurement display menu and substitute original position parameter after selection. The minimum value üü The same as above üü Next page (4/4) Return to the first page (shown in Form 2-26) Menu included by “time category” is shown in Form 2-30 to Form 2-32.
Operating Manual for UTD2000/3000 Form 2-31 Function/measurement item Previous page Frequency Cycle RiseTime Next page (2/3) Description Return to previous page. Return to parameter measurement display menu and substitute original position parameter after selection. The same as above The same as above Page turning Form 2-32 Function/measurement item Previous page Delay Positive duty cycle Return to parameter measurement display menu and substitute original position parameter after selection.
Operating Manual for UTD2000/3000 Form 2-32a Setup Function Description CH1/CH2 Channel Select measured channel. /MATH Channel CH1/CH2 /MATH üü üü üü üü Enter Cursor measurement User can press CURSOR button to display measurement cursor and cursor menu then use multi-purpose knob controller to alter cursor position. As shown in following figure, CURSOR in MENU control area is cursor measurement function key.
Operating Manual for UTD2000/3000 User can move cursor for measurement under secondcursor will appear at the same time. Cursor CURSOR mode. There are 3 modes, namely, voltage, position on the screen can be adjusted by multi- time and tracing. V can be measured by pressing purpose knob controller. User can press SELECT key SELECT and COARSE keys on the panel and multi- (or multi-function knob key) to select cursor to adjust.
Operating Manual for UTD2000/3000 Usage of operation key RUN/STOP key is in upper right corner of front As shown in above figure, automatic setup is to panel of digital storage oscillograph. User can adjust vertical deflection coefficient and horizontal press the key so that green lamp is on to show time base gear automatically for stable waveform operation status. Red lamp can be on after pressing display on the screen according to waveform the key to show stop status.
Operating Manual for UTD2000/3000 Function Setup Obtainment mode Display format Sampling Horizontal position Second/grid Trigger coupling Hold off Trigger level AC The minimum value Trigger gradient Set to 50% Automatic Set to CH1; Set to CH2 when exerting on signal for it if there is no signal for CH1; Ascending Trigger type Edge Vertical band width All Adjustment according to signal amplitude Trigger mode Trigger source Volt/grid 71 Set to YT Automatic adjustment Adjustment according to sig
Operating Manual for UTD2000/3000 Chapter 3: Application Example The first example: Measurement of simple signal It has to observe a unknown signal in the circuit for 2 Automatic measurement of signal voltage and time parameters Digital storage oscillograph can measure most of display signals automatically. Please operate quick display and measurement of signal frequency according to following steps for measurement of and peak value. 1.
Operating Manual for UTD2000/3000 The secondexample: Delay observation of sine wave signal by circuit The same as above example, please set attenuation coefficient of probe and digital storage oscillograph to 10*. Please connect CH1 channel of digital storage oscillograph to circuit signal input terminal and connect CH2 channel to output Figure 3-1 Automatic measurement terminal. Operation steps: 1.
Operating Manual for UTD2000/3000 comparison without waveform overlapping for the first and second channels. 2. To measure delay of sine signal caused by circuit then observe waveform variation.
Operating Manual for UTD2000/3000 The third example: Capture of single signal Advantages and characteristics of digital storage gradient to ascend, trigger mode of single mode and oscillograph include convenient capture of of F1 to F5 respectively under this menu. ĹTo adjust horizontal time base and vertical gear to aperiodic signals such as pulse and burring, etc. It has to know this signal to set trigger level and trigger edge to capture a signal signal.
Operating Manual for UTD2000/3000 control area on the panel can be rotated to alter The fourth example: To reduce random noise of horizontal trigger position so as to gain negative delay trigger with different length to facilitate the signal You can adjust setup of digital storage oscillograph observation of waveform before burring. for overlapping of random noise to tested signal so as to filter or reduce noise and avoid disturbance to ontology signal during measurement.
Operating Manual for UTD2000/3000 2. To connect signals for stable waveform display on digital storage oscillograph. Please refer to previous example for operation. Please refer to previous chapter for adjustment of 77 noise respectively to gain stable trigger 4. To reduce display noise by setting sampling modes. ķTo adopt average sampling mode to eliminate horizontal time base and vertical gear. 3. To improve trigger by setting trigger coupling.
Operating Manual for UTD2000/3000 Figure 3-5 Inhibited signal noise ĸTo reduce display noise by reducing waveform brightness. Note: Average sampling mode can be used to slow down updating speed for waveform display as normal phenomenon. The fifth example: Application cursor measurement This digital storage oscillograph can measure 28 kinds of waveform parameters automatically. All automatic measurement parameters can be measured by cursor. Waveform time and voltage can be measured quickly by using cursor.
Operating Manual for UTD2000/3000 ƸV namely pressure difference can be shown in cursor menu automatically Please refer to following figure for details. Note: Please set cursor type to time if onlying The sixth example: Application of X-Y function To review phase location difference of signals of 2 channels. Example: Phase location variation caused by 1 adopting the secondstep as above for time circuit for tested signals. Please connect digital measurement by cursor.
Operating Manual for UTD2000/3000 6. To press DISPLAY menu key to call out display VLQș control menu. 7. To press F2 to select X-Y. Digital storage location difference angle between channels. Please oscillograph will display input/output characteristics of Therefore, phase location difference angle is circuit under Lissa Jous's figure mode. 8. To adjust vertical scale and vertical position knob to calculated as follows =±arcsin reach the best effect for waveform. 9.
Operating Manual for UTD2000/3000 10.Form of X Y phase location difference Frequency ratio of signal 1:1 Phase location difference The seventh example: Trigger of video signal Video trigger function can be used for all modes except UTD2000L/2000EX series. (Of which: 0° 45° 90° 180° 270° 360° UTD2025CL has video trigger function.) It has to adopt video trigger to gain stable video output signal display for observation of a certain video circuit.
Operating Manual for UTD2000/3000 5. To press [F4] key as menu operation key to select synchronization of odd field or even field. 6. To adjust horizontal time base by rotating horizontal SCALE knob in horizontal control area so as to gain clear waveform display. Trigger of video row Please operate according to following steps for trigger in video row: 1. To press [MENU] button in trigger control area to display trigger area. 2. To press[ F1] key as menu operation key to select video. 3.
Operating Manual for UTD2000/3000 Figure 3-9 Trigger of video row Pass FailInterface Schematic Rear panel of Pass / Fail output 83 The eighth example: Pass/Fail detection It has to check if input signal is within rule scope or not. Fail refers to out of scope and Pass refers to within the scope. Pass/Fail signal can be shown by output port of the rear panel. 1. To press[UTILITY] button then press[F2]Enter into Pass/Fail menu. 2.
Operating Manual for UTD2000/3000 The ninth example: Usage of updating procedure of U-disk Updating procedure of U-disk can be used more conveniently and flexibly. Please operate according to following steps if using this function: 1. To download procedure documents to update from Internet then save them in U-disk. (It is suggested to use U-disk suggested by us.) 2. To close oscillograph and insert U-disk then open oscillograph. 3.
Operating Manual for UTD2000/3000 The tenth example: Usage of storage function Storage functions of oscillograph include setup storage, waveform storage, bitmap storage and specific screen copy function of UTD2000L/2000EX series of oscillograph. 1. Setup of storage function: It has to select display channel, trigger channel, vertical and horizontal gears of oscillograph for setup. Please press[STORAGE] key to select torage type of “setup” by pressing[F1 ]key.
Operating Manual for UTD2000/3000 2. Waveform storage function: UTD2000 series of oscillograph can provide waveform storage function. User can press[STORAGE]key and [F1] key to select storage type of “waveform”. User can press [F2]key to select channel to save waveform then press[F5]Enter into next page. Magnetic disk in F1 menu position can designate storage position and default storage position is digital storage oscillograph (DSO) without plugging in U-disk.
Operating Manual for UTD2000/3000 be recalled by short-cut key of [REF] on the panel 3. Bitmap storage function: As shown in following figure, user can press[ F1] for UTD2000C and UTD2000E series of menu key of STORAGE main menu to select storage oscillograph. User can press [F3] shown in the type of “bitmap” after plugging in U-disk and second page of STORAGE main menu for recall for successful connection of oscillograph. User can UTD2000L/2000EX series of oscillograph.
Operating Manual for UTD2000/3000 4. PrtSc copy & storage function There is 1 PrtSc key in upper left corner of the screen for UTD2000L/2000EX series of oscillograph. User can press the key for screen copy after plugging in Udisk. Displayed image can be saved in U-disk by way of “.BMP” format.
Operating Manual for UTD2000/3000 Loading: The prompt will display on the screen with schedule bar below it when calling out waveform. Troubleshooting 1. Please operate according to following steps for measure or not normally. ĺ To check if signals are produced or not for black panel without display for digital storage articles to measure. (Channels with signal and oscillograph after pressing power switch.
Operating Manual for UTD2000/3000 mode shall be used for video signals. Waveform can not be displayed stably until setting correct trigger mode. Ĺ Please strive to set coupling to high-frequency ĸ To reduce average times. 7.
Operating Manual for UTD2000/3000 Chapter 5: Appendix Appendix A: Technical Indicators Unless otherwise specified, all technical dimensions are appropriate to probes by setting attenuation switch to 10* and UTD2000/3000 series digital storage oscillograph.
Operating Manual for UTD2000/3000 Technical Indicators Sampling Sampling rate Average value Sampling mode Real-time Equivalent UTD2000C/3000C 500MS/s 25GS/s UTD2000E/3000E 1GS/s 50GS/s UTD2052CL 500MS/s 25GS/s UTD2052CEX/UTD2102CEX 1GS/s 50GS/s N can be selected from 2, 4, 8, 16, 32, 64, 128 and 256 after sampling all channels for N times at the same time. Note: Real-time sampling rate is 250MS/s without equivalent sampling for UTD2025C, UTD3025C and UTD2025CL.
Operating Manual for UTD2000/3000 Input Input coupling Input impedance Probe attenuation coefficient 1×, 10×, 100×and 1000× The maximum input voltage 400V (DC + AC peak value and input impedance of 1M¡) 150ps (Typical) delay between channels 93 DC, AC, GND UTD2000C/3000C: 1±2% M¡ for parallel connection to 24±3pF; UTD2000E/3000E: 1±2% M¡ for parallel connection to 24±3pF (for machine model of at most 100MHz);1±2% M¡ for parallel connection to21±3pF (for machine model of 150MHz to 200MHz); UTD2000L/
Operating Manual for UTD2000/3000 Horizontal Waveform interpolation Horizontal resolution Record length Sin(x)/x UTD2000C/3000C /UTD2000E/3000E /UTD2000L:25points/div UTD2000EX 50points/div Sampling point of 2×512k Storage depth 25k(UTD2000C/3000C:2.
Operating Manual for UTD2000/3000 Vertical Analog digital converter (A/D) 8-bit resolution with synchronous sampling for 2 channels Scope of deflection coefficient (V/div) Displacement scope UTD2000C/3000C/UTD2000E/3000E: 2mV/div~5V/div (in input BNC); UTD2000L/2000EX: 1 mV/div~20V/div (in input BNC) (Typical) optional band width limitation 20MHz Low-frequency response (AC coupling, -3dB) DC gain precision (by adopting sampling or sampling mode of average value) DC measurement precision (by adopting
Operating Manual for UTD2000/3000 DC measurement precision (by adopting average sampling mode) ±Ǐ 3% × reading+vertical displacement reading)+( 1% × vertical displacement reading)ǐ To add 2mV when setting from 2mV/div to 200mV/div: To add set value by 50mV when setting from 200mV/div to 5V/div; UTD2000L/2000EX: If vertical displacement is 0 and Nı16 ± 5% × reading+0.1 grid+1mV) by selecting 1mV/div or 2mV/div; ±(4% × reading+0.1 grid+1mV) by selecting 5mV/div; ±(3% × reading+0.
Operating Manual for UTD2000/3000 band width series model UTD2025CǃUTD3025C UTD2042CǃUTD3042C UTD2000C 3000C UTD2000E 3000 E 97 analog band width single band width RiseTime 25MHz 14ns 25MHz 8.7ns 40MHz 40MHz 80MHz 60MHz 80MHz 5.8ns 4.3ns UTD2102CǃUTD3102C 100MHz 100MHz 3.5ns UTD2152CǃUTD3152C UTD2202CǃUTD3202C 150MHz 200MHz 100MHz 2.3ns 100MHz 1.8ns UTD2042CEǃUTD3042CE UTD2062CEǃUTD3062CE 40MHz 60MHz 40MHz 60MHz 8.7ns UTD2082CEǃUTD3082CE 80MHz 80MHz 4.
Operating Manual for UTD2000/3000 Trigger Trigger sensitivity Trigger level scope (Typical) precsion of trigger level for signal of which RiseTime or DescendTime is not less than 20ns İ1div Internal ±5div away from screen center EXT ±3V EXT/5 * ±15V Internal ±(0.
Operating Manual for UTD2000/3000 Video trigger* Trigger sensitivity (typical video trigger) Internal EXT EXT/5* Peak value of 2div 400mV 2V Signal system and row/ field frequency (video trigger type) To support standard NTSC and PAL; Scope of row quantity is 1-525 (NTSC) and 1-625 (PAL) ALT TRIG CH1 trigger CH2 trigger Edge, pulse width and video Edge, pulse width and video Note UTD 2052CL and UTD2052CEX 2102CEX has no EXT 5 function and video trigger function 99
Operating Manual for UTD2000/3000 Measurement Manual mode Voltage difference (ƸV) between cursors; Time difference (ƸT between cursors; Reciprocal of ƸT ƸT Tracing mode Voltage and time of waveform point Cursor It is allowed to display cursor during automatic measurement.
Operating Manual for UTD2000/3000 Trigger frequency meter* Reading resolution 6-bit Trigger sensitivity İ30Vrms (Typical) precistion ±51ppm (+1 word) General technical dimension Display UTD2000C/3000C/UTD2000E/3000E UTD2000L/2000EX Diagonal with diagonal of 145mm Diagonal with diagonal of 178mm (7 inches) Display type (5.
Operating Manual for UTD2000/3000 Probe compensator output (Typical) output voltage (Typical) frequency About 3V if peak value is not less than 1M¡ 1kHz Interface function Standard configuration UTD2000C/3000C/UTD2000E/3000E: 1 USB (D); 1 USB (H); UTD2000L/2000EX: 1 USB OTG Optional fittings UTD2000C series, UTD2000E/3000E series: LAN; UTD3000C series: GPIB and LAN (Only LAN can be selecte dfor UTD3025C) Power Power voltage Environment 100-240VACRMS, 45-440Hz, CAT II Power consumption To be less th
Operating Manual for UTD2000/3000 Machine dimension Dimension Weight UTD 3000 C UTD 3000 E Width UTD 2000 C UTD 2000 E 320mm 320mm UTD 2000 L UTD 2000 X 306mm Height 150mm 147mm 122mm Depth Not containing package 130mm 150mm 292mm 2.5kg 4.9kg 2.2kg Containing package 4.0kg 6.8kg 3.3kg IP protection IP2 X Adjustment interval Suggested calibration period is 1 year.
Operating Manual for UTD2000/3000 Appendix B: Fittings of UTD2000/3000 series digital storage oscillograph Standard fittings: Ɣ 2 inactive probes of 1.2m and 1:1 (10:1); Please Please order all fittings (standard pieces and optional fittings) from local UNI-T dealer. refer to manual of probe fittings of details to meet EN61010-031: 2008 standard.
Operating Manual for UTD2000/3000 Appendix C: Maintenance and cleaning General maintenance It is not allowed to store or place instruments in damage to instrument or probe. Warning: Please confirm that instrument has been locations with direct sunshine for LCD for a long electric short-circuit even personal injury due to time. Note: It is not allowed to touch instrument or moisture. probe by pressurized spray, liquid or solvent to avoid damage.
Operating Manual for UTD2000/3000 The information is subject to changes without prior notice if manual content varies.
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