UNI-T UTD2000 Series User Manual
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UNI-T UTD2000 Series User Manual

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UTD2000 Series User Manual
UTD2000 Series
User Manual
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Summary of Contents for UNI-T UTD2000 Series

  • Page 1 UTD2000 Series User Manual UTD2000 Series User Manual...

  • Page 2: Guaranty And Declaration

    Guaranty and Declaration Dear custumer, Thank you for choosing this UNI-T device. In order to safely and correctly use this instrument .please read this manual thoroughly, especially the Safety Notes part. After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably close to the device, for future reference.
  • Page 3 The probe, other accessories and fuses are not covered by warranty. If any genuine defect is found during the valid warranty period, Uni-T has the option to repair the defective product without any charge for parts or labor, or replace it with another product (at the discretion of Uni-T).

  • Page 4: General Safety Overview

    Avoid circuit exposure: Do not touch exposed connectors and components after power is connected. Do not operate the product if you suspect it is faulty, and please contact UNI-T authorized service personnel for inspection. Any maintenance, adjustment, or replacement of parts must be performed by UNI-T authorized maintenance personnel.

  • Page 5: Safety Terms And Symbols

    UTD2000 Series User Manual Safety Terms and Symbols The following terms may appear in this manual: Warning: The conditions and behaviors may endanger life. Note: The conditions and behaviors may cause damage to the product and other properties. The following terms may appear on the product: Danger: Performing this operation may cause immediate damage to the operator.

  • Page 6: Preface

    UTD2102CEX 100MHz 1GS/s UTD2000 series provide the users with front panels with simple operation and clear functions to perform all the basic operations. Scale and position knobs of each channel provide visual operations that are suitable for user habits as the traditional instrument.
  • Page 7 UTD2000 Series User Manual signal problems in a faster and clearer way. From the following parameter features, you can understand how this series of DSO can satisfy your measurement requirements. Two analog channels High resolution LCD display 400×240 (or 800×480) resolution Support plug and play USB storage equipment or be capable of communicating with computer via USB storage equipment.

  • Page 8: Table Of Contents

    UTD2000 Series User Manual Contents Guaranty and Declaration ....................2 General Safety Overview ..................... 4 Safety Terms and Symbols ....................5 Preface 6 Contents ..........................8 Chapter I Introductions ....................10 1.1 General Inspection ................... 11 1.2 Function Inspection ..................11 1.3 Probe Compensation ..................
  • Page 9 13.2 Troubleshooting ..................... 54 Chapter XIV Technical Information ................56 Chapter XV Appendix ...................... 60 Appendix A Accessories of UTD2000 Series ............60 Appendix B Maintenance and Cleaning ............... 60 Appendix C Warranty ..................... 60 Appendix D Contact Us ..................61...

  • Page 10: Chapter I Introductions

    UTD2000 Series User Manual Chapter I Introductions UTD2000 series DSO is desk type DSO. It is designed with conventional user interface design for any of the basic DSO at the test and measurement industry. This chapter will cover the following as the beginning guide the UTD2000 series DSO: △...

  • Page 11: General Inspection

    (3) Check the complete instrument In case of damages to the appearance of instrument, abnormal operation or failure to pass the performance tests, please contact the UNI-T product distributors or local UNI-T offices. If the instrument is damaged due to transportation, please pay attention to keeping the package, notify transportation department and UNI-T product distributors and UNI-T will make arrangement for repair or replacement.
  • Page 12 (2) DSO accessing to signal UTD2000 series DSO has two input channels with an additional external trigger input channel. Please check the signal according to the following steps. ① Connect DSO probe to CH1 input terminal and set the attenuation rate switch on the probe as 10×...

  • Page 13: Probe Compensation

    1.4 Automatic Settings of Waveform Display UTD2000 series DSO has automatic setting function. According to input signals, automatically adjust the vertical deflection factor, scanning time base and trigger mode until the most appropriate waveform is displayed. Apply automatic setting, the frequency of the measured signal is required to be ≥...

  • Page 14: Introduction To The Horizontal System

    UTD2000 Series User Manual control area. Practices below will gradually guide you to get familiar with the controlling of the vertical system. Figure 1-6 Vertical Control Area on the Panel (1) Turn the vertical position knob to display the signal in the centre of the window.

  • Page 15: Introduction To The Trigger System

    UTD2000 Series User Manual 1. Use horizontal SEC/DIV knob to change gear position settings of horizontal time base and observe the changes of state information. Turn horizontal SEC/DIV knob to change “s/div” time base gear position, and you can find that corresponding changes have taken place in the time base gear position display of corresponding channel in the status bar.

  • Page 16: Chapter Ii Vertical System

    Chapter II Vertical System Each channel for UTD2000 series DSO can be set independently through the vertical system menu. After pressing CH1 or CH2 function key, the system shall display function menu of CH1 or CH2 channel. See Table 2-1 below for description.

  • Page 17: Setting Channel Bandwidth Limited

    UTD2000 Series User Manual Figure 2-2 Simultaneous Display of Signal DC and AC Components If you Press F1 to select as GND, to set CH1 to connect to the internal ground of the instrument, both DC and AC components of the input signal are blocked. And, waveform display is shown in figure below.

  • Page 18: Setting Probe Rate

    UTD2000 Series User Manual Figure 2-4 Waveform Display When Setting Bandwidth throttling in OFF Position If you press F2 again to set the BW Limit as ON, the noises or high-frequency component over 20MHz in measured signal shall be attenuated, as waveform display shown in figure below.

  • Page 19: Vertical Volts/Div Adjustment Setting

    UTD2000 Series User Manual Figure 2-6 Probe Attenuation Coefficient Setting in Channel Menu 2.4 Vertical Volts/Div adjustment setting Adjustments of vertical deflection factor V/div gear position can be set to coarse adjustment and fine adjustment by pressing F3 function key.

  • Page 20: Mathematical Operation Function

    Figure 2-8 Vertical Channel Inverted Settings (Invert: OFF) Figure 2-9 Vertical Channel Inverted Settings (Invert: ON) 2.6 Mathematical operation function UTD2000 series DSO support mathematical operation function for the input signals. Figure below show the match result for CH1 + CH2 as example. Figure 2-10 Math Operation...

  • Page 21: Fft Spectral Analysis

    UTD2000 Series User Manual After pressing theMATH button at the menu area to active mathematic operation. Table 2-2：Math Menu Function Menu Setting Description Type Math Mathematic operation (+、–、×、÷) You can select signal source1 as CH1 Source1 or CH2 Source1+Source2 –...
  • Page 22 UTD2000 Series User Manual amplitudes shall be different at starting and ending positions. Therefore, high-frequency transient interruption shall occur at the joints. In frequency domain, this effect is called leakage. Therefore, in order to avoid the generation of leakage, by multiplying original waveform by a window function, the value at forced starting and ending positions is 0.

  • Page 23: Chapter Iii Horizontal System

    UTD2000 Series User Manual Chapter III Horizontal System 3.1 Horizontal control Figure 3-1 Horizontal System Interface (1) Horizontal control knob Using the horizontal control knob can change the horizontal scale (time base) and trigger horizontal position (trigger position) in internal storage. The vertical midpoint in screen horizontal direction is the time reference point of waveform.

  • Page 24: Window Extension

    UTD2000 Series User Manual Scan Mode：When the horizontal time base control is set at 100ms/div or slower, the instrument enters the slow scan sampling mode. When using the slow scan mode to observe low frequency signals, it is recommended to set the channel Coupling to DC.
  • Page 25 UTD2000 Series User Manual Figure 2-13 Trigger Hold-off for Synchronization of Complex Waveform...

  • Page 26: Chapter Iv Trigger System

    Trigger level knob: trigger knob is used to adjust the trigger level (To set the voltage level corresponding to trigger point). Trigger Type UTD2000 series DSO support: Edge, Pulse, Video and Alternative trigger; Edge Trigger: edge trigger mode refers to triggering of trigger threshold on the input signal edge.

  • Page 27: Pulse Width Trigger

    UTD2000 Series User Manual Pass through DC and AC components of triggering signa Reject high-frequency component of the triggering signal (over 80kHz signals) Reject low-frequency component of the triggering signal (below 80kHz signals) 4.2 Pulse width trigger For pulse width trigger, the trigger time shall be subject to pulse width of the triggering signal.

  • Page 28: Video Trigger

    UTD2000 Series User Manual 4.3 Video trigger UTD2025CL support video trigger compactable to NTSC or PAL standard video signals. (Only UTD2025CL have such functions) Trigger coupling will automatic preset to DC coupling if the video trigger is active. Video trigger menus are shown in the table below:...

  • Page 29: Alternating Trigger

    UTD2000 Series User Manual Figure 4-2 Video Trigger: Field Synchronization 4.4 Alternating trigger During alternating trigger, the trigger signal comes from two input channels CH1 and CH2 alternatingly. Alternating trigger is useful for observing two signal with different frequency. See the figure below for display of triggered alternating waveform example and Table...

  • Page 30: Explanation Of Nouns

    “EXT TRIG” input channel. This can be signification application for UTD2000 series to perform data acquisition using CH1 and CH2 based on an external clock signal connects to the “EXT TRIG” input channel. External trigger signal connects to “EXT TRIG”...

  • Page 31: Chapter V Acquire System

    Acquire System User can change the data acquisition setting of the DSO by pressing the ACQUIRE button as shown in the figure below UTD2000 series DSO. Figure 5-1 Function Key of Acquire System While ACQUIRE button is pressed, the function menu will change to set the data acquisition setting for the DSO.
  • Page 32 UTD2000 Series User Manual Notice: (1) Please select real-time sampling mode when observing single signal. (2) Please select equivalent sampling mode when observing high frequency periodic signal. (3) Please select peak detection mode when hoping to observe the signal envelope for any modulation signal.

  • Page 33: Chapter Vi Display System

    Chapter VI Display System User can change the display setting of the DSO by pressing the DISPLAY button of the UTD2000 series DSO as figure below. Figure 6-1 Function Keys of Display System After press DISPLAY button, the function menu will change to the display setting for the DSO.
  • Page 34 UTD2000 Series User Manual Since sinθ = A/B or C/D, theta (θ) is the angle between the two signals, the definition of A, B and C, D is shown above. We can draw a difference angle θ = ± arcsin(A/B) or θ...
  • Page 35 UTD2000 Series User Manual ■ Reference ormathwaveform ■ Vector display type ■ Horizontal knob ■ Triggercontrol...

  • Page 36: Chapter Vii Measurement Parameters

    Chapter VII Measurement Parameters UTD2000 series DSO support up to 28 of the automatic waveform measurement parameters. You can view at most 5 the measurement parameters at the same time on F1-F5 function menu. To see measurement parameters, please press MEASURE on the control panel.

  • Page 37: Time Parameter

    Average: The average amplitude of signal within 1 cycle. Vrms: Root-mean-squarevalue (effective value). 7.3 Time parameter Below are the automatically measured timing parameter for the UTD2000 series DSO and its definitions: Figure 7-3 Timing Parameter Diagram RiseTime: The time of waveform amplitude rising from 10% to 90%.

  • Page 38: Chapter Viii Cursor Measurement

    UTD2000 Series User Manual Chapter VIII Cursor Measurement User can press the CURSOR button to enable the cursor measurement function for UTD2000 series DSO, where the location of the CURSOR button can be found on figure below. Figure 8-1 Function Key of CURSOR UTD2000 series DSO supports 3 different type of cursor measurements.

  • Page 39: Chapter Ix Storage And Load System

    UTD2000 Series User Manual Chapter IX Storage and Load System User can enter the storage and load menu by pressing the STORAGE button. Figure 9-1 Function Key of STORAGE Press STORAGE to go to the type menu. There are three types to choose from: Setup,Wave and Bitmap 9.1 Setup storage and load...
  • Page 40 UTD2000 Series User Manual Table 9-3 Waveform storage menu (Page 2) Function Menu Setting Description Select to store a acquired waveform into the internal memory of the DSO Desk Select to store a acquired waveform into the USB device Normal...

  • Page 41: Bit Map Storage And Load

    UTD2000 Series User Manual oscilloscope, and use the multi-function knob to select the position where the waveform was previously saved. Select the callback waveform from the specified storage location of the USB flash 1～200 drive, and use the multi-function knob to select the position where the waveform was previously saved.

  • Page 42: Chapter X Utility System

    UTD2000 Series User Manual Chapter X Utility System By pressing the UTILITY function button on the menu area, user can set different utility setting, where the button location are shown in figure below. Figure 10-1 Function Key of UTILITY Table 10-1 Utility menu(Page 1)
  • Page 43 UTD2000 Series User Manual One of the very usefully function is the pass/fail detection function(Only for UTD2025CL). You can create a template of pixels area to compare with the input signal. User can also select the output condition for the logical result between the templates of area and the input source.

  • Page 44: Recorder

    Return to pass detection menu Back Return to Utility function menu 10.2 Recorder The waveform recorder function at the UTD2000 series DSO is generally easy to operate. User should set up Source and Operation as in below table. Table 10-6 Recorder menu Function Menu...

  • Page 45: Chapter Xi Other Funtion Botton

    UTD2000 Series User Manual Chapter XI Other funtion botton 11.1 AUTO figure 11-1 Function Key of RUN/STOP and AUTO As shown in above figure, automatic setup is to simplify operation. Digital storage oscillograph can adjust vertical deflection coefficient and horizontal time base gear automatically for stable waveform display on the screen according to waveform amplitude and frequency when user presses AUTO key.

  • Page 46: Help Menu

    UTD2000 Series User Manual 11.3 Help Menu Press the HELP key to into help menu，then press any key will display the help information of this key. 11.4 Upgrade program TheUSBupgrade program makes upgrade easier and more flexible. To use this...
  • Page 47 UTD2000 Series User Manual Figure 11-3 USB upgrade in progress (6) When update is complete, a successful update prompt will appear: “Upgrade is successfully complete. Please 5. When the USB document is confirmed the following prompt will remove USB device, then power off your oscilloscope and power it back on again to complete the process.”...

  • Page 48: Chapter Xii Applicaion Example

    UTD2000 Series User Manual Chapter XII Applicaion example Example 1: Measuring simple signals To observe and measure an unknown circuit signal, and to quickly display and measure the signal's frequency and peak-to-peak value. (1) To quickly display this signal, follow the steps below：...

  • Page 49: Example 3: Acquiring Single Signals

    UTD2000 Series User Manual oscilloscope channel to 10X. Connect the CH1 to the circuit signal input terminal. Connect CH2 to the output terminal. Steps : (1) To display CH1 and CH2 signals ① Press AUTO. ② Continue to adjust the horizontal and vertical range until you get the desired waveform display.

  • Page 50: Example 4: Reducing Random Noise Of Signals

    UTD2000 Series User Manual example, if the pulse is a logical signal of TTL level, the trigger level should be set at about 2V and the trigger edge should be set to rising edge trigger. If you are not certain about the signal, you can observe it by automatic or normal trigger to determine the trigger level and trigger edge.
  • Page 51 UTD2000 Series User Manual Figure 12-4 Reducing random noise of signals Steps : (1) As in the previous illustration, set the attenuation factor of the probe and Ch1. (2) Connect the signal to ensure stable display of waveform. See the previous illustration for operation instruction.

  • Page 52: Example 5: Using The Cursors For Measurement

    UTD2000 Series User Manual Figure 12-5 Signal noise suppressed ② You can also lower the waveform brightness to reduce display noise Caution :In the average sampling mode the waveform display will update at a slower rate. This is normal. Example 5: Using the cursors for measurement Your oscilloscope can measure 28 waveform parameters automatically.
  • Page 53 UTD2000 Series User Manual Figure 12-6 Using the cursors to test signal voltage...

  • Page 54: Chapter Xiii System Prompts And Trouble-Shooting

    ② Check if the power switch is properly pressed. ③ Restart the unit after performing the above checks. ④ If the unit still fails to work, contact UNI-T to request service. (2) If no waveform is displayed after you have acquired a signal, follow the steps below to find the cause: ①...
  • Page 55 UTD2000 Series User Manual for video signals. Stable waveform display is achieved only when the correcttrigger mode is selected. ③ Try changing the Couping display to High Frequency Suppression or Low Frequency Suppression or to filter any high or low frequency noise that is interfering with triggering.

  • Page 56: Chapter Xiv Technical Information

    Chapter XIV Technical Information Unless otherwise specified, all technical specifications are applicable to the probes with attenuation switch set as 10× as well as UTD2000 series DSO. DSO must first meet the following two conditions to meet those specification standards: The instrument must continuously operate for over half an hour with in the operating temperature.
  • Page 57 UTD2000 Series User Manual Model UTD2025CL UTD2052CL UTD2102e UTD2052CEX UTD2072CEX UTD2102CEX Analog Bandwidth 25MHz 50MHz 100MHz 50MHz 70MHz 100MHz Rise Time(Typical) ≤14ns ≤7ns ≤3.5ns ≤7ns ≤5ns ≤3.5ns Channels Analog-to-digital converter 8bit (A/D) Deflection factor range 1mV/div~20 V/div(at 1-2-5 increment) (V/div) Position range ≥±10div...
  • Page 58 UTD2000 Series User Manual Edge Rise, fall, rise&fall Pulse width trigger Trigger mode >、<、= Polarity positive pulse width, negative pulse width Pulse width range 20ns~10s Video trigger (only UTD2025CL) Trigger sensitivity (Typical) 2div Vpp Signal model and line/field Support standard NTSC and PAL, and the line number scope is respectively 1-525...
  • Page 59 UTD2000 Series User Manual Backlight intensity (Typical) 300nit Interface function: Standard configuration 1 USB OTG General Technical Specification Probe compensator output Output voltage (Typical) About 3Vpp, when the load≥1MΩ Frequency (Typical) 1kHz Power Source Power voltage 100V～240VAC ，50/60Hz，CAT II Power consumption ≤100VA...

  • Page 60: Chapter Xv Appendix

    If any such product proves defective during this warranty period, UNI-T will repair the defective product or provide a replacement according to specific terms and conditions of the warranty. To request maintenance and repair service or a full copy of the warranty, please contact your nearest UNI-T sales and maintenance office.

  • Page 61: Appendix D Contact Us

    For product support outside China, contact your local UNI-T supplier or sales centre. Service Support : Many UNI-T products offer optional plans of extended warranty period or calibration period. For details please contact your local UNI-T supplier or sales centre.
  • Page 62 UTD2000 Series User Manual...

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