UNI-T UTD2025C Operating Manual
  1. Manuals
  2. Brands
  3. UNI-T Manuals
  4. Test Equipment
  5. UTD2025C
  6. Operating manual

UNI-T UTD2025C Operating Manual

Utd2000/3000 series digital storage oscilloscope
Hide thumbs
Table of Contents

Advertisement

Quick Links

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the UTD2025C and is the answer not in the manual?

Questions and answers

Rigoberto Sánchez Robles
June 2, 2025

Manual en español del Osciloscopio UTD2102CEX

0

Related Manuals for UNI-T UTD2025C

Summary of Contents for UNI-T UTD2025C

  • Page 2 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...
  • Page 3 Operating Manual for UTD2000/3000 General Safety Overview Reliable grounding of products: The product is grounded by ground conductor of power supply. The instrument is designed and manufactured strictly Ground conductor must be connected to earth to according to “Safety Requirements of Electronic avoid electric shock.
  • Page 4 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...
  • Page 5 Operating Manual for UTD2000/3000 Product symbol: Following symbols may be shown Safety Terms and Symbols Terms in the manual: The following terms may be on the product surface. seen in the manual: Warning: Warning statement means the conditions and behaviors that may endanger lives. High voltage Caution! Refer to manual...
  • Page 6 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.
  • Page 7 Operating Manual for UTD2000/3000 The manual includes 3 series of digital storage oscillograph as follows. Detailed models are shown in the following form: Series Model Band width Real-time UTD2 C/UTD3025C 25MHz 250MS/s UTD2 C/UTD3042C 40MHz 500MS/s UTD2 C/UTD3062C 60MHz 500MS/s UTD2000C/3000C UTD2 C/UTD3082C...
  • Page 8 Operating Manual for UTD2000/3000 UTD2000/3000 series digital storage oscillograph easily by powerful trigger and analysis capacity. provides simple front panel with clear functions to Users can also observe and analyze signal users for all basic operations. Scale and position of problems quickly and clearly by clear LCD display various channels can provide intuitional operation and mathematical calculation function.
  • Page 9 Operating Manual for UTD2000/3000 Elaborate view window extension function for 1 power wire to meet national standards Operating Manual delicate analysis of waveform details and profile Product Warranty Automatic measurement of 28 kinds of USB connecting wire: UT-D06 or UT-D05 waveform parameters Communication control software for Automatic cursor tracing and measurement...

  • Page 10: Table Of Contents

    Operating Manual for UTD2000/3000 Contents Page Item General Safety Overview Preface Chapter 1: User Guideline ................... General Inspection ................... Function Inspection ..................Probe Compensation ..................AutomaticSetup of Waveform Display ............. Elementary understanding of Vertical System..........Elementary understanding of Horizontal System........... Elementary understanding of Trigger System...........

  • Page 11: Table Of Contents

    Operating Manual for UTD2000/3000 Page Item Setup of Sampling System..............Setup of Display System ..................Storage and Callout ................... Setup of Auxiliary Functions ................Automatic Measurement..................Cursor Measurement ..................Operation Key ....................Chapter 3: Application Examples ..............Example 1: Measurement of Simple Signals .............
  • Page 12 Operating Manual for UTD2000/3000 Item Page Examp Example 8: Pass/Fail Detection ............Examp Example 9 : Usage of Upgrading Procedure of U disk ..... Example 10: Usage of Storage Function ............Chapter 4: System Prompt and Troubleshooting ......... System Prompt Information ................

  • Page 13: Chapter 1: User Guideline

    Operating Manual for UTD2000/3000 General inspection Chapter 1: User Guideline Please know front operation panel firstly after UTD2000/3000 series digital storage oscillograph is getting UTD2000/3000 series digital storage a small and handy desktop product. Basic test can be oscillograph. The chapter is to introduce operation done by providing convenient front panel to facilitate and functions of front panel for operation for users.
  • Page 14 Operating Manual for UTD2000/3000 common Operation multi-purpose menu controls knob controller trigger control horizontal control vertical control probe compensation signal output EXT TRIG INPUT interface analog signal input 5.7 inch front panel of UNI-T...
  • Page 15 Operating Manual for UTD2000/3000 Operation common multi-purpose controls menu knob controller trigger control horizontal control vertical control probe compensation signal output EXT TRIG INPUT analog signal input interface 7 inch front panel of UNI-T...
  • Page 16 Operating Manual for UTD2000/3000 display of horizontal trigger position display of trigger status time display of central scale line mark of Menu varies with channel 1 different function keys. waveform display window mark of channel 2 vertical scale display setup of coefficient of main time base display channel...

  • Page 17: General Inspection

    As shown in Figure 1 4, please there are deficient or damaged fittings. enter into next page and press [F1] to call out ex-factory 3. Please inspect the entire machine and contact UNI-T setup. distributor or local agent for damaged appearance, abnormal operation or failing to pass performance test.
  • Page 18 Operating Manual for UTD2000/3000 Operating Manual for UTD2000/3000 power switch MULTIPUR POSE MEASURE ACQUIRE STORAGE DISPLAY AUTO CURS OR UTILI TY S EL ECT VERTICAL HORIZONTAL TRIGGER P OSITIO N P OS ITIO N LEV E L CH 1 HOR I TRIG MATH MEN U...
  • Page 19 Operating Manual for UTD2000/3000 In digital storage oscilloscope to set the probe Connect probe and grounding clip to attenuation factor. The attenuation coefficient of corresponding connection ends then press [AUTO] vertical gear ratio change instruments, which button. As shown in Figure 1-7, square wave (1kHz, makes measurement resultsSetup method of about 3V and peak value) can be displayed within attenuation coefficient of probe is as follows to...

  • Page 20: Probe Compensation

    Operating Manual for UTD2000/3000 Probe compensation Observation of displayed waveform It needs to adjust it when connecting probe to any input channel for the first time so that probe can be appropriate to input channel. Probe without Exceeding Correct Insufficient compensation correction can also bring in compensation compensation...

  • Page 21: Automaticsetup Of Waveform Display

    Operating Manual for UTD2000/3000 Automatic setup of waveform display Elementary understanding of vertical system UTD2000/3000 series digital storage oscillograph 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...
  • Page 22 Operating Manual for UTD2000/3000 Vertical position of double analog channels shall be 1. Use vertical position knob so that middle display restored to short-cut key of zero pointnamely, of waveform signal in the window. Vertical display SET TO ZERO. position of signal can be controlled by vertical The key is to return vertical displacement/horizontal position knob.

  • Page 23: Elementary Understanding Of Horizontal System

    Operating Manual for UTD2000/3000 Users can also press [OFF] key to close currently Elementary understanding of horizontal system As shown in following figure, there is 1 key and 2 selected channels for UTD2000C/3000C and knobs in horizontal control area. Please be familiar UTD2000E/3000E oscillograph.
  • Page 24 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.

  • Page 25: Elementary Understanding Of Trigger System

    Operating Manual for UTD2000/3000 Trigger point can be restored to vertical middle Elementary understanding of trigger system As shown in Figure 1 there is 1 knob and 3 point quickly by short-cut key of [SET TO ZERO] so (or 2) keys in control area of trigger menu. Please as to restoring displacement of trigger point to be familiar with setup of trigger system gradually as horizontal zero point short-cut key.
  • Page 26 Operating Manual for UTD2000/3000 1. To user trigger level knob to alter trigger level 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.

  • Page 27: Chapter 2: Instrument Setup

    Operating Manual for UTD2000/3000 Set display mode of [DISPLAY]; Chapter 2: Instrument Setup Store and call-out for [STORAGE]; By now, you have been familiar with operation of Set auxiliary system of [UTILITY]; vertical control area, horizontal control area and Automatic measurement of [MEASURE]; trigger system menu for UTD2000/3000 series digital Cursor measurement of [CURSOR];...

  • Page 28: Setup Of Vertical System

    Operating Manual for UTD2000/3000 Form 2-1 Setup of vertical system Description Function menu Setup CH1 and CH2 channels and setup To obstruct DC component Every channel has its own vertical menu. Every of input signal. item can be set individually according to different Coupling To cut off input signals by AC and DC components of input...
  • Page 29 Operating Manual for UTD2000/3000 Press F1 to DC to pass through DC and AC Setup of channel coupling Measured signal is a sine signal with DC component components of measured signals of CH1 channel. by taking exerting signal to CH1 channel as an Waveform display is also shown in following figure: example.
  • Page 30 Operating Manual for UTD2000/3000 (Note: Input signal still shall be connected to Setup of channel bandwidth limit Input one sine signal of about 40MHz for CH1 as an channel circuit under such mode although example. It has to press [CH1] to open CH1 channel waveform is not then press [F2] to set bandwidth limit to OFF.
  • Page 31 Operating Manual for UTD2000/3000 Please press [F2] to set band width limitation to ON 3. Setup of multiplying factor for probe It has to set probe attenuation coefficient in for great attenuation of high-frequency component operation menu of channel to coordinate with and noise of more than 20MHz contained by attenuation coefficient setup of probe.
  • Page 32 Operating Manual for UTD2000/3000 Regulation setup of vertical volt/grid Setup of reverse phase of waveform Volt/grid scope is 2mV/div Reverse phase of waveform: V/div (or 10V/div), or 1mV/div V/div with step It is to show overturning degree of phase location of by way of 1 Deflection coefficient shall be displayed signals.
  • Page 33 Operating Manual for UTD2000/3000 I. Realization of mathematical calculation function Mathematical calculation functions are to show +, -, , / as well as FFT calculation results for CH1 and CH2 channel waveform. Menu is shown as follows: Reverse phase of waveform Figure 2 9 Setup of reverse phase of vertical channel Mathematical calculation...
  • Page 34 Operating Manual for UTD2000/3000 Analysis of FFT frequency spectrum Form 2-2: Introduction to mathematical calculation Time domain signal can be converted to frequency Function Menu Setup Description domain signal when using mathematical calculation Type Math of fast Fourier transtable (FFT). Following types of To set information source 1 Information as Ch1 channel waveform.
  • Page 35 Operating Manual for UTD2000/3000 Form 2-3: FFT menu Description FFT operation knack: Signals with DC component or deviation will bring Setup Description Function FFT mathematical in error or deviation of FFT waveform component. Type calculation AC coupling mode can be selected to reduce DC To set CH1 and CH2 as Information component.
  • Page 36 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.
  • Page 37 Operating Manual for UTD2000/3000 Term explanation: second page to select call-out for 7-inch FFT resolution: It is defined as factor of sampling oscillograph (namely, UTD2000L/2000EX series). 2. Please press [RefA] (RefA reference option) and and calculation point. FFT resolution increases select information source then select its position by when sampling rate decreases for fixed calculation rotating multi-purpose knob in upper part of front...
  • Page 38 Operating Manual for UTD2000/3000 information source 2 which participates in Function menu Setup Description calculation and method is the same to the 1 20 refer to positions of secondstep. Please measure and observe related 20 groups of waveform respectively; waveform by UTD2000/3000 series digital storage There are 200 groups of oscillograph during actual application.

  • Page 39: Setup Of Horizontal System

    Operating Manual for UTD2000/3000 Setup of horizontal system opening extension time base. Please refer to Horizontal control knob introduction to extension time base for details. (As Control knob on horizontal surface can be used to shown in the following form), horizontal menu can alter horizontal scale (or time base) to trigger be displayed for horizontal control key menu.
  • Page 40 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.
  • Page 41 Operating Manual for UTD2000/3000 View window extension As shown in above figure), it can be divided into 2 View window extension is to argument a section of display areas under extension time base. Original waveform is displayed for upper part. Selected area waveform to review image details conveniently.
  • Page 42 Operating Manual for UTD2000/3000 will be displayed on Y axle after selecting X-Y functions do not effect during X-Y display. Automatic testing mode display mode. Cursor measurement mode Reference or mathematical calculation waveform View window extension function Trigger control Figure 2 Waveform display under X-Y mode Note: Digital storage oscillograph can capture waveform by any sampling speed under normal X-Y...

  • Page 43: Setup Of Trigger System

    Operating Manual for UTD2000/3000 Setup of trigger system Trigger level: Trigger level will set signal voltage Trigger can determine data acquisition time and which corresponds to trigger point. waveform display for digital storage oscillograph. It 50%: To set trigger level to vertical point of trigger can convert instable display to meaningful signal amplitude.
  • Page 44 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.
  • Page 45 Operating Manual for UTD2000/3000 Setup Description Function menu Type Edge Set CH1 as trigger signal of information source. et CH2 as trigger signal of information source. Selection of Set EXT TRIG INPUT channel as trigger signal of information source. information source EXT/5 Divide outer trigger source by 5 to expand outer trigger level scope.
  • Page 46 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) Setup Function menu Description Type Pulse width To set CH1 as trigger signal of information source.
  • Page 47 Operating Manual for UTD2000/3000 Form 2-9 (the second page) Setup Function menu Description Pulse width Type To set positive pulse width as trigger signal; Positive pulse width Trigger polarity To set negative pulse width as trigger signal; Negative pulse width The system will acquire waveform data automatically Automatic and display scanning base line on the screen without...
  • Page 48 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 Setup Function menu...
  • Page 49 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 15 Video trigger: Field synchronization ALT TRIG mode ALT TRIGTrigger signal comes from 2 vertical channels during ALT TRIG.
  • Page 50 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 Observation of 2 signals with different frequency by.
  • Page 51 Operating Manual for UTD2000/3000 Form 2-12 Description Setup Function menu Type Trigger source Gradient Trigger mode Set pass-through obstruction of DC components. Set pass-through of all components. Obstruct pass-through of high-frequency part of signal. Only low- High-frequency inhibition Coupling frequency components can pass through. Obstruct pass-through of low-frequency part of signal.
  • Page 52 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.
  • Page 53 Operating Manual for UTD2000/3000 display as practicable as possible. Term explanations 1. Trigger source: To gain trigger from many kinds of Trigger information sources, namely, input channel (CH1 & CH2), external trigger (EXT & EXT/5) and municipal power. Input channel The most common trigger Holdoff information source is optional input channel...
  • Page 54 Operating Manual for UTD2000/3000 connected to EXT TRIG interface. Signal can be waveform data automatically so as to display used for EXT and EXT can be used within signal scanning base line on the screen without trigger trigger level scope of -3V to +3V. signal input.
  • Page 55 Operating Manual for UTD2000/3000 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.

  • Page 56: Setup Of Sampling System

    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 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.
  • Page 57 Operating Manual for UTD2000/3000 Form 2-14 Sampling menu Function menu Setup Description Sampling Activate ordinary sampling mode. Obtainment mode Peak-value detection Activate peak-value detection mode. Average Set average sampling mode and display average times. Set average times for step by multiples of 2, namely, 2, 4, 8, 16, Average times 2~256 32, 64, 128 and 256.
  • Page 58 Operating Manual for UTD2000/3000 It has to observe waveform display variation by altering obtainment mode. Please refer to Figure 2- 19 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 Please select real-time sampling mode for observation...
  • Page 59 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.

  • Page 60: Setup Of Display System

    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 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.
  • Page 61 Operating Manual for UTD2000/3000 Form 2-15 Display menu Function menu Setup Descriptions Display type Vector point Only to display sampling points by wiring. Operation mode of digital storage oscillograph Format X-Y display mode; X input for CH1 and Y input for CH2; Real-time updating of screen waveform;...

  • Page 62: Storage And Callout

    Operating Manual for UTD2000/3000 Storage and callout Operation steps As shown in following figure, STORAGE in MENU Please press STORAGE Enter into type menus. control area is function key of storage system. There are 3 types, namely, waveform, setup and bitmap.
  • Page 63 Operating Manual for UTD2000/3000 Form 2-16 Function menu Setup Description Type Waveform Select waveform storage and callout menu Select waveform from CH1 channel. Information source Select waveform from CH2 channel. 1 20 refer to positions to store 20 groups of waveform. Storage position There are 200 groups of waveform positions for storage to USB.
  • Page 64 Operating Manual for UTD2000/3000 Form 2-17 Storage menu (the second page) Setup Description Function menu To select internal RAM of digital storage oscillograph then Magnetic disk select external U disk. (This function can not be used until plugging in U disk.) To set storage depth to ordinary;...
  • Page 65 Operating Manual for UTD2000/3000 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 Description Setup Setup To select panel setup menu. Operation setup to save 20 groups of panels: To select by multi- Setup of (storage position) 1 20 purpose knob in upper part of front panel.
  • Page 66 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 Setup Function menu Description Bitmap Select bitmap menu...

  • Page 67: Setup Of Auxiliary Functions

    To cancel self-correction and Cancel Self-correction return to previous page. To set waveform Pass/Fail. (Only UTD2000E/3000E, Please refer By detection UTD2025C/3025C and to Form 2-23 UTD2025CL have this function.) Please refer Waveform Set waveform recording recording to Form 2-22 operation.
  • Page 68 Setup Function menu Activate/inactivate fast correction function of channels within scope Fast correction ON/OFF of 2mV/div to 10 mV/div. (Only UTD2025C/3025C has this function.) The first style The secondstyle Interface style Set 4 interface styles for digital storage oscillograph. The third style The fourth style Adjust gridding brightness of the screen by multi-purpose knob.
  • Page 69 Operating Manual for UTD2000/3000 Form 2-22 Waveform recording menu Function menu Setup Description Select CH1 as recording signal source. Select CH2 as recording signal source. Information source Select ct CH1+CH2 as recording signal source. CH1+CH2 Record by pressing recording key for synchronous display of recorded quantity in lower part of the screen.
  • Page 70 Operating Manual for UTD2000/3000 Form 2-23 By detection Function menu Setup Description Open Detection status Open/close information of waveform pass/fail times Close Select CH1 as detected signal source. Select CH2 as detected signal source. Information source Select MATH as detected signal source. MATH Select RefA as detected signal source.
  • Page 71 Operating Manual for UTD2000/3000 according to prompt shown in the screen. Form 2-24 Template setup Language selection: There are many kinds of Function menu Setup Description languages for UTD2000/3000 series digital storage Set horizontal and vertical Template output Pass/Fail tolerance scope oscillograph.

  • Page 72: Automatic Measurement

    Operating Manual for UTD2000/3000 Automatic measurement Application example As shown in following figure, MEASURE is Measurement menu of such series of oscillograph automatic measurement function key. You can be can be used to measure 28 kinds of waveform familiar with powerful automatic measurement parameters.
  • Page 73 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.) User can press F1 Return namely, interval from ascending edge of the first...
  • Page 74 Operating Manual for UTD2000/3000 Automatic measurement of voltage parameters bottom to GND (ground); Voltage parameters which can be measured by 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 value and bottom value and amplitude;...
  • Page 75 Operating Manual for UTD2000/3000 Automatic measurement of time parameters descending edge to descending edge; UTD2000/3000 series oscillograph can measure 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 negative pulse width and cycle;...
  • Page 76 Operating Manual for UTD2000/3000 Form 2-25 Description Function menu Setup Return Return to parameter measurement display menu. Select channel of measurement parameters. Information source Select channel of measurement parameters. Voltage kind Enter into voltage parameter menu. Time kind Enter into time parameter menu. All parameters Display/close all measurement parameters.
  • Page 77 Operating Manual for UTD2000/3000 Form 2-27 Description Function/measurement item Previous page Return to previous page. Return to parameter measurement display menu and substitute Average value original position parameter after selection. he same as above Peak value Root-mean-square he same as above Page turning Next page (2/4) Form 2-28...
  • Page 78 Operating Manual for UTD2000/3000 Form 2-29 Description Function/measurement item Previous page Return to previous page. Return to parameter measurement display menu and substitute The maximum value original position parameter after selection. The same as above The minimum value Return to the first page (shown in Form 2-26) Next page (4/4) Menu included by “time category”...
  • Page 79 Operating Manual for UTD2000/3000 Form 2-31 Description Function/measurement item Previous page Return to previous page. Return to parameter measurement display menu and substitute Frequency original position parameter after selection. Cycle The same as above RiseTime The same as above Page turning Next page (2/3) Form 2-32 Description...

  • Page 80: Cursor Measurement

    Operating Manual for UTD2000/3000 Cursor measurement Form 2-32a User can press CURSOR button to display Function Setup Description CH1/CH2 Channel Select measured channel. measurement cursor and cursor menu then use /MATH multi-purpose knob controller to alter cursor CH1/CH2 position. As shown in following figure, CURSOR in Channel /MATH MENU control area is cursor measurement function...
  • Page 81 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.

  • Page 82: Operation Key

    Operating Manual for UTD2000/3000 Usage of operation key As shown in above figure, automatic setup is to RUN/STOP key is in upper right corner of front simplify operation. Digital storage oscillograph can 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.
  • Page 83 Operating Manual for UTD2000/3000 Function Setup RUN/STOP: To acquire waveform or stop acquisition continuously; Obtainment mode Sampling Display format The key can be pressed for switchover of waveform Set to YT Horizontal position Automatic adjustment sampling between operation and stop. User can Adjustment according to signal press the key under operation status so that green Second/grid...

  • Page 84: Chapter 3: Application Examples

    Operating Manual for UTD2000/3000 Automatic measurement of signal voltage and Chapter 3: Application Example time parameters Digital storage oscillograph can measure most of The first example: Measurement of simple signal display signals automatically. Please operate It has to observe a unknown signal in the circuit for according to following steps for measurement of quick display and measurement of signal frequency signal frequency and peak value.
  • Page 85 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 terminal.
  • Page 86 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. Delay of automatic measurement channel To press MEASURE button to display automatic measurement menu;...
  • Page 87 Operating Manual for UTD2000/3000 The third example: Capture of single signal gradient to ascend, trigger mode of single mode and Advantages and characteristics of digital storage trigger coupling to AC by using menu operation keys oscillograph include convenient capture of of F1 to F5 respectively under this menu.
  • Page 88 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 the signal You can adjust setup of digital storage oscillograph delay trigger with different length to facilitate for overlapping of random noise to tested signal so observation of waveform before burring.
  • Page 89 Operating Manual for UTD2000/3000 2. To connect signals for stable waveform display on noise respectively to gain stable trigger 4. To reduce display noise by setting sampling digital storage oscillograph. Please refer to previous example for operation. modes. To adopt average sampling mode to eliminate Please refer to previous chapter for adjustment of display of random noise to thinner waveform and horizontal time base and vertical gear.
  • Page 90 Operating Manual for UTD2000/3000 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. Figure 3-5 Inhibited signal noise To measure 1 staircase voltage of staircase signal To reduce display noise by reducing waveform...
  • Page 91 Operating Manual for UTD2000/3000 namely pressure difference can be shown The sixth example: Application of X-Y function To review phase location difference of signals of 2 in cursor menu automatically Please refer to following figure for details. channels. Note: Please set cursor type to time if onlying Example: Phase location variation caused by 1 adopting the secondstep as above for time circuit for tested signals.
  • Page 92 Operating Manual for UTD2000/3000 6. To press DISPLAY menu key to call out display control menu. location difference angle between channels. Please 7. To press F2 to select X-Y. Digital storage refer to above figure for definition of A, B, C and D. oscillograph will display input/output characteristics of Therefore, phase location difference angle is circuit under Lissa Jous's figure mode.
  • Page 93 Operating Manual for UTD2000/3000 10.Form of X Y phase location difference The seventh example: Trigger of video signal Video trigger function can be used for all modes Phase location difference Frequency except UTD2000L/2000EX series. (Of which: ratio of 0° 45° 90°...
  • Page 94 Operating Manual for UTD2000/3000 5. To press [F4] key as menu operation key to select Trigger of video row Please operate according to following steps for synchronization of odd field or even field. 6. To adjust horizontal time base by rotating trigger in video row: 1.
  • Page 95 Operating Manual for UTD2000/3000 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.
  • Page 96 Operating Manual for UTD2000/3000 The ninth example: Usage of updating then press[F5] for updating). 4. To wait for updating for prompt of successful procedure of U-disk Updating procedure of U-disk can be used more updating. Please power off oscillograph then open it to conveniently and flexibly.
  • Page 97 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.
  • Page 98 Operating Manual for UTD2000/3000 2. Waveform storage function: saving. 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.
  • Page 99 Operating Manual for UTD2000/3000 As shown in following figure, saved waveform can 3. Bitmap storage function: As shown in following figure, user can press[ F1] be recalled by short-cut key of [REF] on the panel menu key of STORAGE main menu to select storage for UTD2000C and UTD2000E series of type of “bitmap”...

  • Page 100: Troubleshooting

    Operating Manual for UTD2000/3000 4. PrtSc copy & storage function Chapter 4: System Prompt and There is 1 PrtSc key in upper left corner of the screen Troubleshooting for UTD2000L/2000EX series of oscillograph. User Introduction to System Prompt can press the key for screen copy after plugging in U- Regulation to the extreme: It prompts that multi- disk.

  • Page 101: Troubleshooting

    It has to check if channel inspection. attenuation coefficient is consistent with Please contact UNI-T for service if the product attenuation multiple of used probe or not. still can not be used normally 4. With instable waveform display: 2.
  • Page 102 Operating Manual for UTD2000/3000 mode shall be used for video signals. Waveform can To reduce average times. 7. Staircase waveform display not be displayed stably until setting correct trigger As normal phenomenon, horizontal time base mode. can increase under super-low horizontal time base Please strive to set coupling to high-frequency gear so as to increase horizontal resolution and inhibition and low-frequency inhibition display to...

  • Page 103: Chapter 5: Technical Indicators

    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. Digital storage oscillograph must meet 2 conditions as follows to meet such dimension standards: Instrument must operate under regulated operation temperature for more than minutes continuously...
  • Page 104 N can be selected from 2, 4, 8, 16, 32, 64, 128 and 256 after sampling all channels for Average N times at the same time. value Note: Real-time sampling rate is 250MS/s without equivalent sampling for UTD2025C, UTD3025C and UTD2025CL.
  • Page 105 Operating Manual for UTD2000/3000 Input Input coupling DC, AC, GND UTD2000C/3000C: 1±2% for parallel connection to 24±3pF; UTD2000E/3000E: 1±2% for parallel connection to 24±3pF Input impedance (for machine model of at most 100MHz);1±2% for parallel connection to21±3pF (for machine model of 150MHz to 200MHz); UTD2000L/2000EX: 1±2% for parallel connection to 24±3pF;...
  • Page 106 Sin(x)/x Waveform interpolation UTD2000C/3000C /UTD2000E/3000E /UTD2000L:25points/div Horizontal resolution UTD2000EX 50points/div Sampling point of 2×512k Record length 25k(UTD2000C/3000C:2.5k for UTD2025C/3025C:4k) Storage depth UTD2000C/3000C 2ns/div-50s/div (200MHz, 150MHz) UTD2000E/3000E 5ns/div-50s/div (100MHz, 80MHz, 60MHz and 40MHz); Scanning scope 20ns/div-50/div (25MHz) 2ns/div-50s/div (UTD2052CEX, UTD2102CEX) UTD2000EX...
  • Page 107 Operating Manual for UTD2000/3000 Vertical 8-bit resolution with synchronous sampling for 2 channels Analog digital converter (A/D) UTD2000C/3000C/UTD2000E/3000E: 2mV/div~5V/div (in input BNC); Scope of deflection coefficient (V/div) UTD2000L/2000EX: 1 mV/div~20V/div (in input BNC) Displacement scope ±10 div (Of which: ±5div for UTD2202E/3202E) (Typical) optional band width limitation 20MHz Low-frequency response...
  • Page 108 ( V) (by adopting sampling calculating average value for at least 16 captured waveform under the mode of average value) same setup and environment conditions: ±(3% reading+0.05div) × Note: Deflection coefficient scope of UTD2025C/3025C is 2mV/div ~ 10V/div (in input BNC).
  • Page 109 Operating Manual for UTD2000/3000 band width analog band width single band width RiseTime model series UTD2025C UTD3025C 25MHz 14ns 25MHz 40MHz 8.7ns UTD2042C UTD3042C 40MHz 5.8ns 60MHz UTD2062C UTD3062C 60MHz UTD2000C 3000C 4.3ns 80MHz 80MHz UTD2082C UTD3082C 3.5ns 100MHz 100MHz UTD2102C UTD3102C 2.3ns...
  • Page 110 Operating Manual for UTD2000/3000 Trigger Trigger sensitivity 1div Internal ±5div away from screen center Trigger level scope ±3V EXT/5 ±15V (Typical) precsion of trigger ±(0.3div V/div) (within scope of ±4div from screen center) Internal level for signal of which ±(6% of set value+40mV) RiseTime or DescendTime is EXT/5 ±(6% of set value+200mV)
  • Page 111 Operating Manual for UTD2000/3000 Video trigger* Internal Peak value of 2div Trigger sensitivity 400mV (typical video trigger) EXT/5* Signal system and row/ To support standard NTSC and PAL; Scope of row quantity is 1-525 (NTSC) field frequency (video and 1-625 (PAL) trigger type) ALT TRIG Edge, pulse width and video...
  • Page 112 Operating Manual for UTD2000/3000 Measurement Voltage difference ( V) between cursors; Manual mode Time difference ( T between cursors; Reciprocal of Cursor Tracing mode Voltage and time of waveform point It is allowed to display cursor during automatic measurement. Peak value, amplitude, the maximum value, the minimum value, top value, bottom value, middle value, average value, root-mean-square, overshoot, preshoot, frequency, cycle, Automatic RiseTime, DescendTime, positive pulse width, negative pulse width, positive duty cycle,...
  • Page 113 UTD2000L 400(horizontal)×RGB×240(vertical pixels) (vertical pixels) Display color Colorful Waveform brightness* Adjustable (color) (Typical) backlight 300nit strength Category of display Multilingual selection language Note*: UTD2000C/3000C series have no function of trigger frequency meter (except UTD2025C/3025C). Waveform brightness can not be adjusted.
  • Page 114 Operating Manual for UTD2000/3000 Probe compensator output (Typical) output voltage About 3V if peak value is not less than 1M (Typical) frequency 1kHz Interface function UTD2000C/3000C/UTD2000E/3000E: 1 USB (D); 1 USB (H); Standard configuration UTD2000L/2000EX: 1 USB OTG UTD2000C series, UTD2000E/3000E series: LAN; Optional fittings UTD3000C series: GPIB and LAN (Only LAN can be selecte dfor UTD3025C) Power...
  • Page 115 Operating Manual for UTD2000/3000 Machine dimension 3000 2000 2000 2000 3000 2000 Width 320mm 306mm 320mm Dimension Height 150mm 147mm 150mm 122mm Depth 130mm 292mm Not containing package 2.2kg 2.5kg 4.9kg Weight Containing package 3.3kg 4.0kg 6.8kg IP protection IP2 X Adjustment interval Suggested calibration period is 1 year.

  • Page 116: Appendix B: Fittings Of Utd2000/3000 Series Digital Storage Oscillograph

    Appendix B: Fittings of UTD2000/3000 series Please order all fittings (standard pieces and digital storage oscillograph Standard fittings: optional fittings) from local UNI-T dealer. 2 inactive probes of 1.2m and 1:1 (10:1); Please refer to manual of probe fittings of details to meet...
  • Page 117 Operating Manual for UTD2000/3000 Appendix C: Maintenance and cleaning damage to instrument or probe. General maintenance Warning: Please confirm that instrument has been It is not allowed to store or place instruments in dried thoroughly before power re-supply to avoid locations with direct sunshine for LCD for a long electric short-circuit even personal injury due to time.
  • Page 118 Operating Manual for UTD2000/3000 The information is subject to changes without prior notice if manual content varies.

This manual is also suitable for:

Utd2042cUtd3025cUtd3062cUtd2062cUtd2082cUtd3082c ... Show all

Table of Contents

Save PDF