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 Copyright Information ● ● Uni-Trend Technology（China） Limited. All rights reserved. products, including obtained patents or those under application shall be protected bynational or foreign patent rights. Our company reserves the rights to alter product specifications and prices. ● ● shall reserve all rights. UNI-T, subsidiary or provider owns permission software products with protection regulated by national copyright law and international treaty regulations.
Operating Manual for UTD2000/3000 Warranty period is 3 years since original purchaser purchases the product from UNI-T or authorized distributor if product is sold or transferred to the third party within 3 years after original purchaser purchases it. Probe, other fittings and fuses are excluded in this warranty.
Operating Manual for UTD2000/3000 a) To maintain products which are damaged due to product installation, repair or maintenance by not UNI-T service representatives; b) To maintain damage caused by improper usage or connection of incompatible equipment; c) To maintain damage or trouble caused by using power not provided by UNI-T; To maintain products which have been altered or integrated with other products (if such alternation or integration will increase product maintenance period or difficulty); he warran
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 IEC610100131:2008 Safety Standard . It conforms to “Insulation Overvoltage Standard” (CATⅡ ò) and Safety Standard with Pollution Level Ⅱ òYou 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 cond itions and behav iors that may enda nge r 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 ● Elaborate view window extension function for delicate analysis of waveform details and profile ● Automatic measurement of 28 kinds of waveform parameters ● Automatic cursor tracing and measurement function ● Unique waveform recording and playback functions ● Embedded FFT ● Multiple mathematical calculation functions (including +, -, ×,÷) for waveform ● Edge, video, pulse width and ALT TRIG functions ● Multi-language menu display ● Help information display in Chinese and E
Operating Manual for UTD2000/3000 Contents Item Page 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.................................................................... 4 4 Setup of Display System ...................................................................................... 48 Storage and Callout ............................................................................................. 50 Setup of Auxiliary Functions ............................................................................... 55 Automatic Measurement. ....
Operating Manual for UTD2000/3000 Item Page Example 8: Pass/Fail Detection.......................................................................... 83 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 knob controller menu UTD2102E Operation controls 100MHz 1GS/s trigger control horizontal control vertical control interface probe compensation signal output EXT TRIG INPUT analog signal input 5.
Operating Manual for UTD2000/3000 common Operation multi-purpose controls knob controller menu UTD2102CEL 100MHz 1GS/s 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 mark of channel 2 display of horizontal trigger position time display of central scale line Menu varies with different function keys. waveform display window vertical scale display setup of coefficient of main time base display channel 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 and set attenuation ratio switch on probe to 10×Á function button Figure 1-4 Warning: Please confirm safety grounding of digital storage oscillograph to avoid dangers. 2. Signal access of digital storage oscillograph is double-channel input for UTD2000/3000 series digital storage oscillograph. There is also 1 EXT TRIG INPUT channel.
Operating Manual for UTD2000/3000 ② In digital storage oscilloscope to set the probe 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× ③ Connect probe and grounding clip to corresponding connection ends then press [AUTO] button.
Operating Manual for UTD2000/3000 Probe compensation 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 compensation correction can also bring in measurement tolerance or error. Please operate according to following steps for adjustment of probe compensation: 1. To set probe menu attenuation coefficient to 10× and place probe switch to 10× then connect digital storage oscillograph probe to CH1.
Operating Manual for UTD2000/3000 Automatic setup of waveform display UTD2000/3000 series digital storage oscillograph has automatic setup functions. It can adjust vertical deflection coefficient, scanning time base and trigger mode automatically according to input signal for the most appropriate waveform display. Frequency of measured signals shall be more than or equal to 50Hz and duty cycle shall exceed 1% according to automatic setup requirements. Automatic setup： 1.
Operating Manual for UTD2000/3000 1. Use vertical position knob so that middle display of waveform signal in the window. Vertical display position of signal can be controlled by vertical position knob. Ground mark moves vertically with waveform when rotating vertical position knob. Measurement knack You can observe difference between waveform and signal ground to measure DC component of signal quickly if adopting DC channel coupling mode.
Operating Manual for UTD2000/3000 Users can also press [OFF] key to close currently selected channels for UTD2000C/3000C and UTD2000E/3000E oscillograph. They can also click on CH1, CH2 and MATH keys twice to close corresponding channels for UTD2000L oscillograph. Elementary understanding of horizontal system As shown in following figure, there is 1 key and 2 knobs in horizontal control area. Please be familiar with setup of horizontal time base gradually as follows: Horizontal control panel of 5.
Operating Manual for UTD2000/3000 1. Use horizontal SCALE knob to alter horizontal time base gear then observe alternation of status information. To rotate horizontal SCALE knob to alter “s/div” time base gear so as to show corresponding variation of time base gear display for corresponding channels of status bar. Horizontal scanning speed steps from 2ns/div～50s/div by way of 1－2－5 mode.
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 window by rotating horizontal POSITION knob. Term explanation Trigger point: It refers to position of actual trigger point by comparing with middle point of storage instrument.
Operating Manual for UTD2000/3000 1. To user trigger level knob to alter trigger level and in trigger signal amplitude. 4. To press FORCE button: To produce 1 trigger instruct trigger level line by seeing trigger mark on the signal forcefully for mainly application for normal screen so that it moves vertically with knob rotation. and single trigger mode. Variation of trigger level in lower part of 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： Measured signal is a sine signal with DC component by taking exerting signal to CH1 channel as an example. To press F1 to select AC and AC coupling mode. DC component contained by measured signal will be obstructed. Waveform display is shown in following figure. Press F1 to DC to pass through DC and AC components of measured signals of CH1 channel.
Operating Manual for UTD2000/3000 (Note: Input signal still shall be connected to channel circuit under such mode although waveform is not 2. Setup of channel bandwidth limit： Input one sine signal of about 40MHz for CH1 as an example. It has to press [CH1] to open CH1 channel Ground coupling then press [F2] to set bandwidth limit to OFF. 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 Please press [F2] to set band width limitation to ON for great attenuation of high-frequency component and noise of more than 20MHz contained by measured signals. Waveform display is also shown in following figure. Close bandwidth limit 3. Setup of multiplying factor for probe： It has to set probe attenuation coefficient in operation menu of channel to coordinate with attenuation coefficient setup of probe.
Operating Manual for UTD2000/3000 4. Regulation setup of vertical volt/grid： Volt/grid scope is 2mV/div～ 5V/div (or 10V/div), or 1mV/div～20V/div with step by way of 1－2－5. Deflection coefficient shall be altered within current vertical gear scope by less step during fine tuning so as to realize uninterrupted and continuous adjustment of vertical deflection coefficient within all vertical gears. 5.
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.
Operating Manual for UTD2000/3000 Form 2-2: Introduction to mathematical calculation Function Menu Type Information source Setup Description Math + , - , ×,÷ CH1 CH2 + - Operator × ÷ Information source 2 CH1 CH2 To set information source 1 as Ch1 channel waveform. To set information source 1 as Ch2 channel waveform.
Operating Manual for UTD2000/3000 Form 2-3: FFT menu Description Setup Description Function FFT mathematical Type FFT calculation To set CH1 and CH2 as Information CH1 calculation waveform. CH2 source Hanning Set Hanning window function Hamming Set Hamming window function Window Blackman Set Blackman window function Rectangle Set Rectangle window function Vrms To set vertical unit to Vertical unit 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 Description 1~20refer to positions of calculation and method is the same to the secondstep. 20 groups of waveform Please measure and observe related waveform by respectively; UTD2000/3000 series digital storage oscillograph There are 200 groups of during actual application. Please compare current Storage position 1~20 waveform positions for waveform with reference waveform for analysis.
Operating Manual for UTD2000/3000 Setup of horizontal system Horizontal control knob Control knob on horizontal surface can be used to alter horizontal scale (or time base) to trigger horizontal position (or trigger position) shown in RAM. Vertical middle point toward horizontal direction on the screen is time reference point for waveform. Horizontal scale can be altered for waveform extension or shrinkage by comparing with screen center.
Operating Manual for UTD2000/3000 Figure 2-11 Interface of horizontal system Mark Description: ①．Mark represents position of current waveform view window in RAM ②．Mark position of trigger point in RAM. ③．Mark position of trigger point in current waveform view window. ④．Display horizontal time base (or main time base), namely, s/div. ⑤．Trigger horizontal distance of position by comparing with middle point of view window.
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 2－12 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. not effect during X-Y display. ■ Automatic testing mode ■ Cursor measurement mode ■ Reference or mathematical calculation waveform ■ View window extension function ■ Trigger control Figure 2－13 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 can convert instable display to meaningful waveform once correct setup. Digital storage oscillograph will collect sufficient data to map waveform in the left side of trigger point firstly. It will acquire data continuously and synchronously when waiting for trigger conditions.
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. (UTD2000L series have not such function except UTD2025CL.) ALT TRIG: It is appropriate to trigger signal without frequency relevance.
Operating Manual for UTD2000/3000 Setup Edge CH1 CH2 Selection of EXT information source EXT/5 Municipal power Alteration Function menu Type Gradient Trigger mode Trigger coupling 33 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. Divide outer trigger source by 5 to expand outer trigger level scope. Set municipal power trigger ALT TRIG of CH1 and CH2 signals;.
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 Type Pulse width CH1 CH2 Selection of EXT information EXT/5 source Municipal power Alteration More than Pulse width Less than conditions Equal to Pulse width setup Next page 1/2 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.
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. type video triggersource st a nda r d synchronization al l ro w s Figure 2－14 37 Video trigger: Row synchronization Figure 2－15 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 2－16 Observation of 2 signals with different frequency by.
Operating Manual for UTD2000/3000 Form 2-12 Function menu Type Trigger source Gradient Trigger mode Coupling 39 Setup Description —— —— —— —— 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 panel to alter inhibition time for stable waveform display as practicable as possible. Trigger Term explanations 1. Trigger source: To gain trigger from many kinds of information sources, namely, input channel (CH1 & CH2), external trigger (EXT & EXT/5) and municipal Holdoff power. ■ Input channel: The most common trigger Figure 2—17 Hold off used for synchronization of information source is (optional) input channel.
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. ■ 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 category of signal component conveyed to trigger circuit. Coupling types include DC, AC, lowfrequency inhibition and high-frequency inhibition. ■ Pass through all components of signals under DC mode. ■ Obstruct DC components with signal attenuation to be less than 400Hz under AC mode. ■ Obstruct DC components with attenuation of lowfrequency component of less than 80kHz under “lowfrequency inhibition” 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 2－18 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 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 2－19 Waveform without adopting Figure 2-20 Waveform by adopting 32 times of average mode Note： 1. Please select real-time sampling mode for observation 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 2－21 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 control area is function key of storage system. Operation steps： Please press STORAGE Enter into type menus. 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 —— Description Select waveform storage and callout menu Select waveform from CH1 channel. Select waveform from CH2 channel. 1~ 20 refer to positions to store 20 groups of waveform. There are 200 groups of waveform positions for storage to SUB. (Storage position and quantity vary with machine model.) Save waveform —— Enter into next page.
Operating Manual for UTD2000/3000 Form 2-17 Storage menu (the second page) Setup Function menu Magnetic disk Storage depth Previous page 2/2 DSO USB Ordinary Long storage —— 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) 1～2 0 Save Recall 53 Description To select panel setup menu. 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 Setup Function menu Description Bitmap Select bitmap menu —— Storage position 1～2 0 0 Save 2 0 0 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 By detection Figure 2－27 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 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 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 Interface style The third style Set 4 interface styles for digital storage oscillograph. The fourth style 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 ● Operation ■ Save 1 ~ 200 Recall 1 ~ 200 Return 57 —— Description Select CH1 as recording signal source. Select CH2 as recording signal source. Select ct CH1+CH2 as recording signal source. Record by pressing recording key for synchronous display of recorded quantity in lower part of the screen. 1. Playback key; 2.
Operating Manual for UTD2000/3000 Form 2-23 By detection Function menu Detection status Information source Output conditions Template setup Return Setup Open Close CH1 CH2 MATH RefA RefB Pass Pass/Halt Fail/Halt Fail Refer to Form 2-24 for details Description Open/close information of waveform pass/fail times 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 Description Set horizontal and vertical Template output Pass/Fail tolerance scope / according to adjustment Horizontal 1-200Pixel Set horizontal tolerance scope Vertical Setvertical tolerance scope 1-100Pixel Return to Pass detection Return / 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 automatic measurement function key. You can be familiar with powerful automatic measurement function of UTD2000/3000 series digital storage oscillograph gradually by following introduction. Figure 2-28 Function key (automatic measurement) of sampling system Application example Measurement menu of such series of oscillograph can be used to measure 28 kinds of waveform parameters.
Operating Manual for UTD2000/3000 press F5 to select “All parameters” to display all voltage/time measurement parameters. User can press F2 to select channel to measure. (Channel is ineffective until opening.) User can press F1 Return to parameter measurement display menu if not altering current measurement category. The first example: Steps are as follows if displaying measured peak value of CH2 channel in F1 area. 1. To press F1 key Enter into measurement category selection menu; 2.
Operating Manual for UTD2000/3000 Automatic measurement of voltage parameters Voltage parameters which can be measured by UTD2000/3000 series oscillograph automatically 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 (ground); The minimum value (Vmin): Voltage from the lowest waveform point to GND (ground); Middle value (Vmid): Half of sum of waveform top and bottom voltage; Ampli
Operating Manual for UTD2000/3000 Automatic measurement of time parameters UTD2000/3000 series oscillograph can measure signal frequency, cycle, ascending time, 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 Description Setup CH1 CH2 Voltage kind Time kind All parameters Return to parameter measurement display menu. Select channel of measurement parameters. Select channel of measurement parameters. Enter into voltage parameter menu. 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 Function/measurement item Previous page Top value Bottom value Middle value Next page (3/4) 65 Description Return to previous page.
Operating Manual for UTD2000/3000 Form 2-29 Function/measurement item Previous page The maximum value The minimum value —— Next page (4/4) Description Return to previous page. Return to parameter measurement display menu and substitute original position parameter after selection. The same as above —— 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 67 Description Return to previous page. Enter into delay option menu (shown in Form 2-32a) after selection.
Operating Manual for UTD2000/3000 Form 2-32a Setup Function Description CH1/CH2 Select measured channel. Channel /MATH Channel CH1/CH2 /MATH —— —— —— —— Enter Cursor measurement User can press CURSOR button to display measurement cursor and cursor menu then use multipurpose 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 CURSOR mode. There are 3 modes, namely, voltage, time and tracing. △V can be measured by pressing SELECT and COARSE keys on the panel and multipurpose knob controller to adjust positions of 2 cursors respectively during voltage measurement. Similarly, it can be measured if selecting time. Cursor of digital storage oscillograph can also trace signal variation automatically under tracing mode with waveform display. Remark: For 5.
Operating Manual for UTD2000/3000 Usage of operation key RUN/STOP key is in upper right corner of front panel of digital storage oscillograph. User can press the key so that green lamp is on to show operation status. Red lamp can be on after pressing the key to show stop status. Automatic setup As shown in above figure, automatic setup is to simplify operation.
Operating Manual for UTD2000/3000 Function Obtainment mode Display format Horizontal position Setup Sampling Set to YT Automatic adjustment Adjustment according to signal Second/grid frequency Trigger coupling AC The minimum value Hold off Trigger level Set to 50% Automatic Trigger mode Set to CH1; Set to CH2 when exerting on signal for it if there Trigger source is no signal for CH1; Ascending Trigger gradient Edge Trigger type Vertical band width All Adjustment according to signal Volt/grid amplitude 71
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 quick display and measurement of signal frequency and peak value. 1. Please operate according to following steps for quick signal display: 1. Please operate according to following steps for quick signal display: ① To set probe menu attenuation coefficient to 10* and set switch on the probe to 10*.
Operating Manual for UTD2000/3000 Figure 3-1 Automatic measurement 73 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. Operation steps: 1. Signal display of CH1 and CH2 channels: ① To press AUTO button.
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 oscillograph include convenient capture of 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. For instance: Trigger level shall be set to about 2V and set trigger edge to ascending edge trigger if pulse is a logic signal of TTL level.
Operating Manual for UTD2000/3000 control area on the panel can be rotated to alter horizontal trigger position so as to gain negative delay trigger with different length to facilitate observation of waveform before burring. The fourth example: To reduce random noise of the signal You can adjust setup of digital storage oscillograph 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 horizontal time base and vertical gear. 3. To improve trigger by setting trigger coupling. (1) To press MENU button in trigger area to display trigger setup menu. (2) To set trigger coupling to low-frequency inhibition or high-frequency inhibition.
Operating Manual for UTD2000/3000 Figure 3-5 Inhibited signal noise ② To 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.
Operating Manual for UTD2000/3000 △V, 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 adopting the secondstep as above for time measurement by cursor. Figure 3-6 Voltage difference of signal by cursor measurement 79 The sixth example: Application of X-Y function To review phase location difference of signals of 2 channels.
Operating Manual for UTD2000/3000 6. To press DISPLAY menu key to call out display control menu. 7. To press F2 to select X-Y. Digital storage oscillograph will display input/output characteristics of circuit under Lissa Jous's figure mode. 8. To adjust vertical scale and vertical position knob to reach the best effect for waveform. 9. (As shown in following figure), please observe and calculate phase location difference by elliptic oscillograph figure method.
Operating Manual for UTD2000/3000 10. Form of X-Y phase location difference Frequency ratio of signal 1：1 81 The seventh example: Trigger of video signal Video trigger function can be used for all modes Phase location difference except UTD2000L series. (Of which: UTD2025CL 0 ° 4 5 ° 9 0 ° 1 8 0 ° 2 7 0 °3 6 0 ° 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. Figure 3-8 Trigger of video field 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.
Operating Manual for UTD2000/3000 Figure 3-9 Trigger of video row 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. 1. To press[UTILITY] button then press[F2]Enter into Pass/Fail menu. 2. Setup of information source: Enter into Pass/Fail menu then press[F2] to select information source. 3.
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 UTD2000 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 As shown in following figure, saved waveform can be recalled by short-cut key of [REF] on the panel for UTD2000C and UTD2000E series of oscillograph. User can press [F3] shown in the second page of STORAGE main menu for recall for UTD2000L series of oscillograph. 3. Bitmap storage function: As shown in following figure, user can press[ F1] menu key of STORAGE main menu to select storage type of “bitmap” after plugging in U-disk and successful connection 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 series of oscillograph. User can press the key for screen copy after plugging in U-disk. 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 black panel without display for digital storage oscillograph after pressing power switch. ① To check if power plugs are connected with normal power supply or not. ② To check if power switch is connected or not. ③ To start up the instrument again after above inspection.
Operating Manual for UTD2000/3000 mode shall be used for video signals. Waveform can not be displayed stably until setting correct trigger mode. ③ Please strive to set coupling to high-frequency inhibition and low-frequency inhibition display to filter high/low-frequency noise triggered by interference. 5. To press RUN/STOP key without any display: ① To check if trigger mode of trigger menu is in normal or single gear or not. It has to check if trigger level is out of waveform scope or not.
Operating Manual for UTD2000/3000 Chapter 5: Service and Support Warranty Abstract (for UTD2000/3000 series digital storage oscillograph) UNI-T (UNI-T Electronics (Shanghai) Co., Ltd) shall guarantee no material & process defect within 3 years after delivery date of authorized dealer for produced and sold products. UNI-T will repair and replace products with any defect within warranty period according to regulations shown in warranty sheet.
Operating Manual for UTD2000/3000 Chapter 6: 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 30 minutes continuously.
Operating Manual for UTD2000/3000 Input Input coupling Input impedance 93 DC, AC, GND UTD2000C/3000C: 1±2% MΩ for parallel connection to 24±3pF; UTD2000E/3000E: 1±2% MΩ for parallel connection to 24±3pF (for machine model of at most 100MHz); 1±2% MΩ for parallel connection to21±3pF (for machine model of 150MHz to 200MHz); UTD2000L: 1±2% MΩ for parallel connection to 20±3pF; Probe attenuation coefficient The maximum input voltage 1× , 10× , 100× and 1000× 400V (DC + AC peak value and input impedance of
Operating Manual for UTD2000/3000 Horizontal Waveform interpolation Record length Storage depth Scanning scope Precision of sampling rate and delay time Measurement precision (full band width) for interval (△T ) Sin(x)/x Sampling point of 2×512k 25k(UTD2000C/3000C:2.
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 UTD2000L: 1 mV/div~20V/div (in input BNC) (V/div) Displacement scope ±10div (Of which: ±5div for UTD2202E/3202E) (Typical) optional band width limitation 20MHz Low-frequency response ≤10Hz (in BNC) (AC coupling, -3dB) UTD2000C/UTD3000C, UTD2000E/UTD3000E: ±4% if vertical sensitivity is
Operating Manual for UTD2000/3000 DC measurement precision (by adopting average sampling mode) ±【(3%×(reading+vertical displacement reading)+(1%×vertical displacement reading)】; 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: If vertical displacement is 0 and N≥16: ±(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 Dand width Series UTD2000C/3000 C UTD2000E/3000 E UTD2000L Model UTD2025C、UTD3025C 25MHz 25MHz UTD2042C、UTD3042C 40MHz 40MHz 14ns 8.7ns UTD2062C、UTD3062C UTD2082C、UTD3082C 60MHz 80MHz 60MHz 80MHz 5.8ns 4.3ns UTD2102C、UTD3102C 100MHz 100MHz 3.5ns UTD2152C、UTD3152C UTD2202C、UTD3202C 150MHz 200MHz 100MHz 2.3ns 100MHz 1.8ns UTD2042CE、UTD3042CE UTD2062CE、UTD3062CE 40MHz 60MHz 40MHz 60MHz 8.7ns 5.8ns UTD2082CE、UTD3082CE 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 Pre-trigger ability Inhibition scope (Typical) level set to 50% Edge trigger Edge type Pulse width trigger Trigger mode Pulse trigger ≤1div Internal EXT EXT/5* Internal ± 5div away from screen center ± 3V ± 15V ± (0.
Operating Manual for UTD2000/3000 Video trigger* Trigger sensitivity (typical video trigger) Signal system and row/ field frequency (video trigger type) ALT TRIG CH1 trigger CH2 trigger Internal EXT EXT/5* Peak value of 2div 400mV 2V To support standard NTSC and PAL; Scope of row quantity is 1-525 (NTSC) and 1-625 (PAL) Edge, pulse and video Edge, pulse and video Note*: UTD2000L series has no EXT/5 function. Others also have no video trigger function except UTD2025CL.
Operating Manual for UTD2000/3000 Measurement Manual mode Cursor Voltage difference (△V) between cursors; Time difference (△T) between cursors; Reciprocal of △T ( 1 /△T) Voltage and time of waveform point Tracing mode Auto matic measurement mode It is allowed to display cursor during automatic measurement.
Operating Manual for UTD2000/3000 Trigger frequency meter* Reading resolution 6-bit Trigger sensitivity ≤30 mVrms (Typical) precistion ± 51ppm (+1 word) General technical dimension Display Display type Display resolution Display color Waveform brightness* (Typical) backlight strength Category of display language UTD2000C/3000C/UTD2000E/3000E Diagonal with diagonal of 145mm (5.
Operating Manual for UTD2000/3000 Probe compensator output (Typical) output voltage (Typical) frequency About 3V if peak value is not less than 1MΩ 1kHz Interface function Standard configuration Optional fittings UTD2000C/3000C/UTD2000E/3000E: 1 USB (D); 1 USB (H); UTD2000L: 1 USB OTG UTD2000C series, UTD2000E/3000E series: LAN; UTD3000C series: GPIB and LAN (Only LAN can be selecte for UTD3025C) Power Power voltage 100-240VACRMS, 45-440Hz, CAT II Power To be less than 30VA consumption F1.
Operating Manual for UTD2000/3000 Machine dimension Dimension Weight Width Height Depth Not containing package Containing package IP protection ip2 X Adjustment interval Suggested calibration period is 1 year. 103 UTD2 0 0 0C UTD2 0 0 0 E 320mm 150mm 130mm 2.5kg 4.0kg UTD3 0 0 0C UTD3 0 0 0E 320mm 150mm 292mm 4.9kg 6.8kg UTD2 0 0 0 L 306mm 147mm 122mm 2.2kg 3.
Operating Manual for UTD2000/3000 Appendix B: Fittings of UTD2000/3000 series digital storage oscillograph Standard fittings: ● 2 inactive probes of 1.2m and 1:1 (10:1); Please 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 locations with direct sunshine for LCD for a long time. Note: It is not allowed to touch instrument or probe by pressurized spray, liquid or solvent to avoid damage. Cleaning: Instrument and probe can be inspected constantly according to operation. Please clean outer surface of instruments according to following steps: 1.
Operating Manual for UTD2000/3000 The information is subject to changes without prior notice if manual content varies.
Operating Manual for UTD2000/3000 UNI-T UNI-T Electronics (Shanghai) Co., Ltd. Address: RM 15, 11F, China Merchants Mansion, No.161, Lujiazui East Road, Pudong New District, Shanghai City, P.R.China Phone: (86-21) 58783888 Fax: (86-21) 58757888 E-mail: infosh@uni-trend.com.cn Post code: 200120 Manufacturer: UNI-T Technology (Chengdu) Co., LtdAdd: 2F, Building D2, No.199, West District Avenue, West High-tech District, Chengdu City, Sichuan Province, P.R.
