UTD2000M 2202C M | UTD2000M 2152C M | UTD2000M 2062C M | UTD2000M 2062H M | UTD2000M 2042C M | UTD2000M 2102C M | UTD2000M 2102H M | UTD2000M 2082C M | UTD2000M 2082H M | UNI-T UTD2000M 2042H M, 2042C M, 2062H M, 2062C M, 2082H M, 2082C M, 2102H M, 2102C M, 2152C M, 2202C M Digital Storage Oscilloscope User Manual

本产品依照CE安全标准设计

UTD2000M

Series

OPERATING

MANUAL

Preface

Dear users:

Hello!Thanks for you choosing the brand new UNI-T device. In order to use the instrumentcorrectly, please read the manual thoroughly and especially the Safety Notes part before using the device.

If you have read through the manul,you are recommended to keep the menu properly with the instrument together or at the place you can read anytime in order to read it in the process of future use.

UTD2000M User Ma nual

Copyright Information

● Uni-Trend Technology (China) Ltd. All rights reserved.

products,inclusive of the patents that had been gained or are applying for,shall be

●

protected by the patent right in china or other countries.

● Our Company preserve the right to alter the product specification and the price.

● all rights reserved. All licensed software products are properties of Uni-Trend its subsidiaries or

● suppliers. They are protected by the national copyright law and international conventions. Information contained in this manual supercedes all information in previously published versions.

is the registered trademark of Uni-Trend Technology (China) Ltd.

UTD2000M User Manual

Warranty period is 3 years since original purchaser purchases the product from UNI-T or authorized distributor if product is sold or transferred to the third party within 3 years after original purchaser purchases it. Probe, other fittings and fuses are excluded in this warranty. UNI-T can decide to maintain products with defects independently without paying the expenses of parts and labor or replace them by equivalent products if there is any defect at applicable warranty period.

（UNI-T）determines to replace products with any defect. Warranty parts, modules and replaced products of UNI-T may be new or with performance of new products after maintenance. All replaced parts, modules and products may become

UNI-T properties.

“Users” mentioned below refer to rights persons or entities regulated by warranty according to statement.

“Users” must report defects to UNI-T within appropriate warranty period with service fulfillment properly to gain service committed by warranty. Users shall pack products with defects and submit them to maintenance center designated by UNI-T. In the meanwhile, they shall pay for freight fee in advance and provide copied procurement certificate of original purchaser. UNI-T shall pay for product return expense to users if transporting product to location within state of UNI-T maintenance center. Users also shall pay for all freight fees, tariffs, taxes and other expenses if returning products to any other location.

The warranty is not applicable to any defect, trouble or damage caused by sudden accidents, normal abrasion of machine parts, improper usage, maintenance or deficiency out of scope of product regulations. UNI-T shall not be liable for providing the following services according to warranty regulations: service representative staff of UNI- T; b) To maintain damage caused by improper usage or connection of incompatible equipment;

UTD2000M User Ma nual c) To maintain damage or trouble caused by using power not provided by UNI-T; d) To maintain products which have been altered or integrated with other products (if such alternation or integration will increase product maintenance period or difficulty); he warranty is signed by UNI-T by aiming to the project so as to substitute any other expressed or implicit warranty. UNI-T and distributor refuses any implicit warranty for marketability or suitability with special purpose. UNI-T shall maintain or replace products with defect to users as the unique and all remedial measures for warranty violation. UNI-T and distributor shall not responsible for such damages regardless of possible indirect, special, occidental or inevitable damage with/without prior notice.


General safety overview

The instrumentshall strictly comply with the safety requirements for electric measuring instrument

( GB4793 )and with the insulation over-voltage standard (CATⅡ600V)and the safety standard of conductor, which shall be connected with the ground in order to prevent the electric shock.Please connect the product to ground correctly before connect the input or output.

Connect the digital storage oscilloscope probe pollution degree II. Please know the following safety correctly: the probe ground conductor is the same prevention measures to prevent the personal injury as ground electric potential.

and damage for the product or any product connected with the product. In order to prevent the

Do not connect the ground conductor with high voltage.

possible dangers, please use the product in accordance with the stipulations.

Only the professionally trained personnel are entitled to conduct the maintenance procedure.

Prevent the fire and personal injury:

Check all terminal rated values: please read all rated value and sign instruction on the product and read the product manual for more detaileds about the rated value before connect the product to guard against the fire and high current shock.

Use the correct power wire: to use the specific power wire of the product that accredited by the country.

Push and pull correctly: do not push or pull when the probe or test wire isconnected with the power source.

Connect the product to ground: the product is connected to the ground through the ground

Please do not open the cap board: don' t operate the instrument while the cover or board is open.

Use the right fuse: use the product-designated types of fuse and the rated index only.

Avoid circuit exposure: avoid touching the exposed connector and element after the power is on. Do not operate it if doubt of any problem about

UTD2000M User Ma nual the product and please ask the maintenance personnel to check it.

Keep it in proper-ventilated place.

Avoid operating in wet conditions.

Avoid operating in flammable and explosive environment.

Keep the product surface clean and dry.

Safety terms and signals.

Term in the manual. The following terms might be concluded in the manual.

Warning: the warning indication means the condition and activity that might endanger your life.

Noting: the indication means the condition and activity that might cause damage to the product and other property.

Terms on the product: The following terms might be on the product:

● Danger means you might be immediately injured when you read the sign.

● Warning means you might not be injured immediately when you read the sign.

● Noting means the possible damage to the product or other property.

Signals on the product: the following signals might be on the product.

High voltage Caution!

Refer to manual

Protective ground terminal

Ground terminal for chassis

Ground terminal for testing


Preface

The manual shall introduce the operation information about the UTD2000M series of Digital Storage oscilloscopes. The manual shall conclude the following chapters:

Chapter Ⅰ User' s guide: Introduce briefly the function of the Digital Storage oscilloscopes and the installation intrucitons.

ChapterⅡ Instrument Setting: Introduce the operation measures for the UTD2000M series of Digital

Storage oscilloscopes.

ChapterⅢ Application Examples: Provide application examples to solve measuring problems.

ChapterⅣ System indication and troubleshooting

ChapterⅤ Service and sustain

ChapterⅥ Appendix

Appendix A: Technical Index

Appendix B: Accessory of UTD2000M series of digital storage oscilloscopes

Appendix C: Maintenance and Cleaning

Appendix D: Chinese-English Board Look-up Table

Appendix E: Factory Setting


Brief introduction of the UTD2000M series of digital storage oscilloscope

The UTD2000M series of digital storage oscilloscope are a perfect combination of usability, uniquie technical index and multipurposeality, helping users completing testing more quickly

6types of digital storage oscilloscopes as following are introduced in the manual：

Type

UTD

UTD

UTD

UTD 2062C M

UTD 2082H M

UTD 2082C M

UTD 2102H M

UTD 2102 CM

UTD 2152 CM

UTD

2042H M

2042C M

2062H

2202

M

CM

Bandwidth

40MHz

40MHz

60MHz

60MHz

80MHz

80MHz

100MHz

100MHz

150MHz

200MHz

Realtime sampling speed

1GS/s

1GS/s

1GS/s

1GS/s

1GS/s

1GS/s

1GS/s

1GS/s

1GS/s

1GS/s

Storage depth

8Mpts

16Mpts

8Mpts

16Mpts

8Mpts

16Mpts

8Mpts

16Mpts

16Mpts

16Mpts


The UTD2000M series of digital storage oscilloscope provides a simple and functionally easier to capture and analyze the waveform. The clear liquid crystal display and mathematical clear front panel features, enabling to conduct all operations enable users to observe and analyze the basic operations. Scales of each channel and the signal problems more quickly and clearly.

position knobs provide Intuitiveoperation,according How the series of digital storage oscilloscope will with the use habit of traditional instrument and meet your measuring needs will be known from the enabling the user to operate it proficiently without following functional features: taking much time to learn and be familiar wi ● Double analog channel operation of the digital storage oscilloscope. In order ● 7-inch TFT liquid crystal display with the resolution to speed up the adjustment for measuring, the user up to 800×480, enabling the display effect clearer can press directly the button AUTO ,and then the ● With the waveform capture rate up to 150，000 instrument shall show the proper waveforms and wfms/s, 75 times higher than that of the same types the gear settings.

of product

Apart from the usability, UTD2000M series of digital ● With the storage depth up to 16Mpts enabling the storage oscilloscope possess high efficiency index oscilloscope to maintain the highest sampling rate in and powerful functions which is necessary for quick a wider time-based scope and the overall and details measuring. The quicker signal might be observed on of the waveformforms the UTD2000M series of digital storage ● Subtle window extended function and accurate oscilloscope through the 1GS/s real-time sampling analysis of the waveform detail and profile and 50GS/s equivalent time sampling.The powerful trigger and analysis ability shall make it


● With bountiful trigger functions, including: edge, Accessory of the UTD2000M series of digital vedio, pulse-width, slope and alternation trigger etc storage oscilloscope

● Automatically measuring 24 types of waveform ● Two 1.2m probes (1:1/10:1), details referred to

● Unique waveform record and playback function

● Support USB flash disk storage and software upgrading and print screenat a click functions

● Support plug-and-play USB equipment and communicate with computer through the USB equipment

●Storage the waveforms, settings and bitmaps and reappear waveforms and settings

● Built-in 6-bit hardware frequency measuring meter

● Embedded with FFT and digital filtering

●Multipurposes of waveform mathematical the probe accessory instruction and meeting the standard EN :

● A power wire that meets the standard of the country the product in

● A User's Guide

● A Product Warranty

● USB connector: UT-D 06

● UTD2000M digital storage oscilloscope communication control software operations (including: addition,minus,multiply and division)

● Unique AUTO setting functions and can configure flexibly to your needs

● Multi-Language Menu and the help menu indication

UT D2 000M Us er Ma nual

Item Page

Preface

Chapter Ⅰ : User's Guide ...........................................................................................

1 nitial setting .......................................................................................................

1

General check ...................................................................................................

1

Probe compensation ........................................................................................

2

Operate the self-tuning program .....................................................................

3

Automatic setting for the waveform display ..................................................

Regulate time and date of the oscilloscope 4

Initial knowledge about the operation board of the oscill scope.....................

5

Initial knowledge about the trigger system ....................................................

11

Chapter Ⅱ Instrument Setting..........................................................................

13

Waveform brightness setting ............................................................................

13

Set the vertical system.............................................................................

14

Set horizontal system...............................................................................

27


Contents

Item Page

Preface

Setting trigger system................................................................................

29

Set sampling system ........................................................................................

38

Set display system ............................................................................................

40

Set storage system ...........................................................................................

43

Automatic measuring .......................................................................................

Automatic Setting ................................................................................................

Chapte Ⅲ application examples

46

Cursor Measurement ........................................................................................

51

Auxiliary Function Setting ................................................................................

52

57

Example 1: measuring simple signal ...............................................................

61

Example 2: Capture single signal .....................................................................

62

Example 3: Reduce random noise of the sinal ................................................

63

Example 4: Application of cursor measurement.........................................

65

Example 5: application of X－Y function....................................................

68


Item Page

Example 6: vedio signal trigger ..........................................................

69

Example 7 Store data into USB flash disks.

...................................................

71

Example 8 Pass test ........................................................................................

73

ChapterⅣ System Tips and Trouble Shooting ..............................................................

75

Instruction about the system tips.....................................................

75

Trouble shooting..............................................................................

75

Chapter Ⅴ Service and Support......................................................................

77

Section 1: Product program upgradation .....................................................

77

Section 2 Maintenance Overview .............................................................

79

Section 3 Contact us ..................................................................................

80

Chapter Ⅵ Appendix........................................................................................

81

Appendix A: Technical Index .....................................................................

81

AppendixB: Accessory of UTD2000M series of digital storage oscilloscopes.

88

Appendix C: Maintenance and Cleaning .............................................

88

Appendix D: Factory Setting..............................................................

89


Chapter Ⅰ User' s Guide

Apart from the product and function, the chapter shall introduct the following themes:

How to complete the function check, automatic adjustment, probe compensation and the time and date setting quickly

Initial setting

The following procedure shall explain how to quickly

check the normal function of oscilloscope, to use the built-in compensation signal to compensate the

passive probe and use the operation signal channel compensation program for the highest signal accuracy and to set the time and date.

■ To carry out the initial setup program when first use the oscilloscope.

■ To make probe compensation coordination when first connect the probe with any input channel.

■ To operate self-tuning program when the temperature variation is up to or more than 5℃.

General check

You are recommended to check the instrument in accordance with the following steps when you use a new UTD2000M digital storage oscilloscope.

1.Check if there is any damage caused by

transportation f any serious damage of the package carton or plastic

foam protective mat were found, please contact with

the Uni-T distributor immediately.

2. Check the accessory

As regards to the provided accessory details, the above-mentioned Accessory of UTD2000M series of digital storage oscilloscopes in the manual have clearly stated.You can check i if there is any damage to the accessory in reference to the manual. If any lack or damage of accessory were found, please contact with the Uni-T distributor or the local Uni-T representative office.

3. Check the complete instrument

If any damage of accessory surface, or failure to

1

2


work or to pass the function test were found, please contact with the Uni-T distributor or the local representative office of Uni-T.

f any damage were found, please keep the package and contact with the transportation department and the uni-t distributor that sells the product, UNI-T shall arrange for the maintenance or replacement.

4. Function check

Make a quick function check to make sure if the instrument operates normally.

1. to connect the instrument with the power with the supply voltage being AV 100-240V and the frequency 45Hz-440Hz, then turn on the power switch, press down the front board start button and wait for the instrument to start normally.

Warning: please confirm the safety grounding of the oscilloscope to guard against danger.

2. To connect the oscilloscope probe output terminal with the channel 1, and connect the probe input terminal with PROBE COMP (probe compensation) signal connection strap.

3. Press the button AUTO( automatical setting) and the aquare wave( about 3 Vpp，

1kHz）shall be shown on the screen.

4. Press the button CH1 once to shut the channel

1and press the button CH2 once to open the channel 2.

5. Press the function key UTILITY ,press F5 and then press F2 to enter the Auto strategy and open all settings, repeat the step 2 and 3.

Probe compensation

When firstly connect the probe with any input channels, it is needed to coordinate the probe compensation to match the probe with the input channel. Measuring error or mistakes might be resulted in if fails to complete the compensation adjustment of the probe. Please follow the steps as follows to coordinate the probe compensation:

1. to set the attenuation coefficient of the probe menu


as 10× and the probe switch 1 0×and connect the oscilloscope probe with the

Warning: to guard against the electric shock in measuring the high voltage with the probe, please

CH1channel. Make sure the contact with probe make sure that the insulated conductor of probe is is stable if use the hook-like probe. To connect the intact and do not touch the metal part of the probe tip with the signal input connector of the probe when connecting with the high voltage probe compensator, and connect the ground clamp with the grounding terminal of the probe compensation connector, then open the

CH1channel and press the button AUTO.

2. Observe the shown waveforms: source.

Notes: The probe will limit bandwidth of the oscilloscope to 6MHz when the probe attenuation switch setting is 1×. Whole bandwidth of the oscilloscope should be in use and make sure

Over compensation Correct compensation Under compensation

Piture 1-1 Probe compensation adjustment

3. If the waveform were shown Over

Compensation orUnder Compensation, coordinate the adjustable electric capacity of the probe with the non-metal manualle adjusting pen until the waveform as the above picture Correct compensation were appeared on the screen.

Operate the self-tuning program

The instrument shall reach the maximum measurement accuracy by operating the selftuning program. You can operate the program any time while it is necessary to Operate the selftuning program when the environment temperature variation is up to or more than 5℃.

Please follow steps as follows if operate the selftuning program:

3


4

1. Disconnect all probes or cables with the channel Use the automatic setting: input connector.

1. Connect the signal being checked with the signal

2. Press function key UTILITY.

3. Press the key F1 to choose the option System

Configuration on the right side of the screen.

input channel.

2. Press the key AUTO .the oscilloscope will automatically set the vertical scale coefficiency,

4. Press the key F1 to chooses the function Selftuning.

scanning time base and the trigger methds. If the further observation is need, you can

5. Press the multipurpose knob key to confirm to operate with manual setting after the completion operate the self- tuning, which will need several of automatic setting until the waveform display minutes.

have reached the needed perfect effect.

Automatic setting for the waveform

display

The UTD2000M digital storage oscilloscope possesses theautomatic setting function and will, based on the input signal, automatically adjust the vertical scale coefficiency, scanning time base and the trigger mode until there is proper waveform display It is required that frequency of the signal being checked shall be bigger than or

Regulate time and date of the oscilloscope

Please follow the steps as follows to regulate the present time and date of the oscilloscope

1. Press function key UTILITY .

2.Press the key F1 to enters the option: System

Configuration.

3. Press the key F4 in the system configuration menu to choose the option Time Setting and to set the date and time with the key of the side menu and the multi-funcition knob.

than 1 % when use the self configuration.


4. Press Confirm to restore the set date and time different function menu or directly aquire the specific after completion of the setting.

function application, and choose the function by keys

Initial knowledge about the operation board of the oscilloscope

from F1 to F5 on the right side of the screen after entering into the function menu.

You need to know about the front operation board when you get get the UTD2000M digital storage oscilloscope.The section will present brief description and introduction about the operation and function of the front operation board of UTD2000M digital storage oscilloscope, thus enabling you to be familiar with the operation of UTD2000M digital storage oscilloscope in the shortest time.

UTD2000M digital storage oscilloscope provides users simple and functionally clear front board to operate it conveniently. The board includes knobs and function keys, function of the knobs are similar to that of other oscilloscopes. On the right side of the screen lies a line of 5 menu operation keys (F1 to F5, from top to bottom), and other keys on the board are menu function keys by which, you can enter into

5

6


UTD2000M

1GS/s

SELECT

V mV V

ZOOM mV s

SEC/DIV ns

Picture 1-2 Front Board of the Oscilloscope


Please follow the steps as follows to operate the menu system.

1. Press the menu function key of the front board to show the menu you need to use.

2. Press keys from F1 to F5 on the right side of the screen to choose the menu options. Press keys from F1 to F5 On the right side of the screen again to choose if the menu option include many choices.

3. Some menu options need setting numeric value or multi-optionto complete the setting, you can set and choice by regulating the multipurpose knob.

Instructions for the front board

MEASURE: perform the automatic waveform measurement.

ACQUIRE: set the sample acquiring method of oscilloscope.

STORAGE: to restore into or draw out waveform from the memory or USB.

CURSOR: to activate the sursor and operate the manual sursor measurement.

DISPLAY: set the waveform format and type.

UTILITY: activation system tools such as system setting.

HORIZONTAL MENU: set window extension and trigger hold-off.

TRIGGER MENU: regulate part of trigger parameters.

MULTI PURPOSE: move the cursor and set numeric parameter value of some menu options or multioption menu and press the knob to confirm.

VERTICAL POSITION: move the chosen vertical position of the waveform and press the knob, then the channel will show the position is back to the vertical midpoint of the screen.

HORIZONTAL POSITION: move the horizontal display position of the trigger point and press the knob,then the pregrigger point will is back to the vertical midpoint of the screen.

RIGGER LEVEL: regulate the trigger point of waveform

7

8

UTD2000M User Ma nual and press the knob to set the trigger level to 50% or PrScrn: print the displayed content on the screen vertical reference dead level.

into the USB flash disk.

RUN/STOP: run or stop the waveform data collecting.

COARSE: control the coarse and fine regulation of the cursor and multi-knob.

AUTO: based on the input signal, to auomatically regulate the vertical scale coefficiency, sanning time base and trigger modes until the proper waveform display.

INGLE: set the instrument as the single trigger mode.

FORCE: be forced to run a immediate trigger event.

HELP: provide detailed instructions about the

STAT THE BUTTON: open /close the instrument

USB/ HOST: used to connect with the USB flash disk.

Initial knowledge about the vertical system

In the vertical control area lays a series of keys and knobs as it is showed in the following picture. The following practices shall guide you to know better of the use of vertical setting.

menu after open it.

HORIZONTAL SCALE: regulate the horizontal scale coefficiency.

VERTICAL SCALE: regulate the vertical scale coefficiency of the chosen waveform.

CH1 and CH2: open or close the chosen channel.

MATH: open or close the mathematical function.

REF: display the reference waveform menu.

V mV V mV

Picture 1-1 vertical control area of the front board


Move the knob VERTICAL POSITION to move the below the waveform window. To revolve the vertical waveform vertically and press the knob the knob SCALE to change the VOLTS/DIV vertical channel display position will be back to the vertical scale coefficiency and you will find the vertical midpoint.

scale coefficiency corresponding to the status bar

Keys like CH1 CH2 REF MATH will display the changes correspondingly.

vertical channel operation menu and open or close the channel display waveform. SCALE set the vertical scale coefficiency.

1.To press the vertical displacement knob

POSITION to make the waveform to display the signal in the centre of the window and regulate the vertical position knob POSITION to control signal vertical display position.the reference sign of channel ground level will move up and down with the waveform when revolve the vertical positon knob POSITION.

2. To changes the vertical system' s setting and observes changes of the status information. You can confirm changes of any vertical gear position based on the information showed in the status bar

The screen shall display the status information about the operation menu, sign, waveform and gear by pressing CH1 CH2 REF and MATH .

Measuring techniques

If the channel coupling mode were DC, you could quickly measure the signal' s DC component by observe the distance between the waveform and signal ground level.

If the coupling mode were AC， the DC component in the signal could be filtered. The mode shall be convenient for you to display the AC component in the signal with higher sensitivity.

9


10

Initial knowledge about the horizontal system

Two keys and knobs in the level control area as shown in the following picture, and the practices below shall make you familiar with the setting of horizontal time base.

Picture 1-4 board levelcontrol area

Position knob POSITION: move level position of all channels and REF waveform.

The level menu MENU shall display the window and hold-off time.

CALE set scale coefficiency of the level scanning time base SEC/ DIV. Press the SCALE to enter into the window extension interface with shortcut mode. After starting the extension window, you can regulate the magnification times by regulating the window scale.

1. Change horizontal time base gear position with the horizontal SCALE knob and observe changes of the status information. while revolving the horizontal SCALE knob to change the SEC/ DIV time base gear, you will find the time base gear corresponding to the status bar changes correspondingly with the horizontal scanning velocity 2ns/ div～50s/div and stepping with 1－2－

5 mode.

Noting: UTD2000M digital storage oscilloscope shall varies in horizontal scanning time base gear because of the different mode.

2. Regulate horizontal postion of signal in the waveform window by the horizontal POSITION knob and you will oberserve horizontal shift of

UTD2000M User Ma nual knob when revolving the horizontal POSITION knob. Press down it, the trigger point will be back to the horizontal midpoint.

3. Press the key MENU to display the menu

Zoom, below which, you can open the extension window with F3 , then close it with F1 and back to the main window. Below the menu, you can regulate the trigger load-off time with the knob

MULTI PURPOSE.

Explanation of nouns

Trigger Point: it refers to the position of the real trigger point ralative to the storage midpoint.the trigger point could be shifted horizontally with the horizontal knob POSITION.

Trigger Load-off: it refers to the interval between the trigger occurrence and the next restart of trigger circuit. You can adjust the trigger load-off time with the knob MULTIPURPOSE and the regulation of trigger load-off time could be used to observe the compound or complex signals.

Initial knowledge about the trigger system

A knob and three keys in the trigger menu control area as shown in the picture 1－5, practices below shall make you familiar with the setting of trigger system.

Trigger system of picture 1-5 board

Trigger level knob HORIZONTAL: trigger condition for trigger signal to produce trigger could be set by revolving the trigger level knob

HORIZONTAL in using trigger modes such as edge, pulse width and slope. The trigge level could be set as vertical midpoint( 50% ) of the trigger signal by pressing down the trigger level knob HORIZONTAL and the trigger level be zero by pressing down again.

MENU : Display contents of the trigger menu.

11

12


1. You will see the trigger sign in the screen to indicate the trigger level line, which shifts up and

Noting: down with the knob when using the trigger level knob to change the trigger level. In changing the Miscellaneous function to the displacement trigger level, you will observe the corresponding knob, and press down it to back to the midpoint changes of the trigger level value in the lower quickly.

part of the screen.

2. To change trigger setting with the TRIGGER

MENU.

Press key F2 , choose the Signal Source as CH1

( choose with the knob, and press down

Miscellaneous function to the trigger level knob, and press down it to back to the trigger signal

50% position to produce trigger level.

MULTIPURPOSEto confirm or choose directly with touch-control.

Press key F3 , and then press key F1 to set the trigger coupling as DC.

Press key F4 , and then press key F1 to set the trigger mode as automatic.

Miscellaneous function to the MULTIPURPOSE knob,press down it to confirm your choice.

and press down it to enter into the window display

Press key F5 , then press key F2 to set the slope mode as up mode.


Chapter Ⅱ Instrument Setting

You have been, at present, initially familiar with the operation of vertical control area, horizontal contol area and the trigger system menu of UTD2000M digital storage oscilloscope. With the introduction of the previous chapter, the user shall be familiar with the menu operation. You are recommended to read the firt chapter if you have not been familiar with the operations and methods above.

The chapter shall mainly elaborate on the following contents:

■ Waveform brightness setting

■ Set the vertical system( CH1 、CH2 、MATH 、

REF、POSITION、VOLTS/DIV)

■ Set the horizontal system ( MENU 、POSITION 、

SEC/DIV)

Set the trigger system(TRIGGER MENU 、FORCE 、

SINGLE 、HORIZONTAL)

■ Set the sampling mode( ACQUIRE )

■ Set the displaying mode ( DISPLAY )

■ Storage and draw out ( STORAGE )

■ Auxiliary system setting( UTILITY )

■ Automatic measuring( MEASURE )

■ Cursor measuring ( CURSOR )

■ Automatic measuring, run/ stop key( AUTO 、

RUN/STOP )

■ Multipurpose knob( MULTIPURPOSE )

You are recommended to read through the chapter carefully to know more details about varied measurement functions and system operation methods of the UTD2000M digital oscilloscope.

Waveform brightness setting

You can regulate the waveform brightness by opening

CH1or CH2 to use the multipurpose knob.

Compared with the common digital oscilloscope, the UTD2000M digital oscilloscope can control the waveform brightness. All waveform point shall be high brightness when maximum brightness is set and brightness in the waveform shall change with the degrees when the brightness is down.

13

14


Set the vertical system

CH1 and CH2 channel and its setting

Each channel has independent vertical menu and each item shall be set in the different channel. Pressing function key CH1 and CH2 , the system shall display the operation menu of CH1 and CH2 channel, and details are referred to following form 2- 1:

Form 2: Channel Menu Instructions

Function Menu

Coupling

Setting

DC

AC

Grounding

Instruction

Be accessible to the AC and DC components of the input signal.

Prevent the DCcomponents of the input signal.

Displaying the reference ground level (keep connection with the input signal).

Bandwidth Restriction

VOLTS/DIV

Probe

Opposite Phase

Full bandwidth

20MHz

Coarse tuning fine tuning

1×

10×

100×

1000×

Switch on

Switch off

Full bandwidth

Restrict the bandwidth to 20MHzto reduce the displaying noise.

Coarse tuning: to set the vertical scale coefficiency with1-2-5 system.

Fine tuning: to set it during the scope set by the coarse tuning according to specific needs for increasing the vertical resolution.

To choose one of the value to make sure accuracy of the reading of vertical scale coefficiency based on the probe attenuation coefficiency: 1× 、10× 、100× 、1000×

Waveform is reversed.

Waveform is displayed regularly.


1. Set the Channel Coupliing

Taking the signal imposed on the CH1channel as an example, the signal being measured is a sinusoidalsignal containing DC components.

Pressing F1 and choosing the AC with the knob

MULTIPURPOSE to set the channel coupling as

AC1MΩ coupling mode. DC components contained in the signal being measured shall be prevented.

Waveform shall display as follows: in the CH1channel,of the signal being measured.

Setup of

AC coupling

Pressing the F1, and pressing it again to choose

DC 1MΩ to set the channel coupling as the DC coupling mode. It is accessible for the DC and AC components, input.

DC coupling

Picture 2-1 DC components contained in the signal shall be prevented.

Picture 2-2 DC and AC components of the signal shall be displayed concurrently.

Press and press it again to choose the channel coupling as grounding and set the channel coupling as the grounding mode. The waveform displays as follows:

15

Grounding coupling

UTD2000M User Ma nual signal being measured will pass.The waveform shall display as follows: full bandwidth

16

Picture 2-3 channels are being set as grounding

(Noting: under the mode,the input signal will connect with channel circuit eventhough the screen don't display the waveform.)

2. Set the channel bandwidth restrictions

Taking the signal imposed on the channel CH1 as an example, the signal being measured contains high frequency.

Press CH1 to open the channel CH1, then press F2 and F1,the channel bandwidth will be full bandwidth and the high frequency components contained in the

Picture 2-4 Waveform display when at full bandwidth

Press F2 and F3 ,the noise higher than 20 MHz and the high frequency components in the signal being measured shall be restricted,the waveform displays as follows:

UTD2000M User Ma nual full bandwidth

20MHz

3. Setting the probe Override

In order to be in accordance with the attenuation coefficiency setting of probe, it is needed to set the probe attenuation coefficiency in the channel operation menu.If the probe attenuatio coefficiency is 10:1 ,the probe coefficiency in the channel menu correspondingly be set as 10 ×to make sure the accuracy of voltage reading.The following example displays the setting and vertical gear in application of the 10:1 probe.

Picture2-5 Waveform display when the full bandwidth

Probe attenuation coefficiency

Picture 2-6 Probe attenuation coefficiency setting in the channel menu (trigger level shift in the picture)

17


4. Vertical scale coefficiency VOLTS/DIV setting 5. Setting of waveform opposite phase

VOLTS/DIV gear regulation of the Vertical scale coefficiency can be classified into coarse and fine

Waveform opposite phase: display the phase of signal revesing 180 degrees.the waveform of nonstepping with 1-2-5 when in coarse tuning,While in waveform after opposite phase in picture 2-9.

fine tuning the vertical scale coefficiency could be changed with the smaller stepping in the present vertiacal gear scope,thus enabling the vertical scale coefficiency to,continuously and without interruption, adjust in the range of 2mV/div～10V/div.

Picture 2-8 Non-opposite Phase

18

Picture 2-7 vertical scale coefficiency coarse and fine tuning


Waveform after opposite phase in picture 2-9

6. Bias Voltage Setting

It will be inconvenient to observe waveform when the amplitude of DC component in signal being measured is quite big compared with that of AC component, as shown in picture 2-10.

Picture 2-10 Signal Containing DC Component

Bias voltage function can be used to offset DC component for better display of signal in screen.

Enter Bias Voltage function menu,set bias voltage with knob MULTIPURPOSE,as shown in picture

2-11.it is possible to calculate DC component of signal based on bias voltage value.

19


Perform the mathematic operation function

It means displaying the operation results after the addition, substraction, multiplication and division of the

CH1 and CH2 channel waveform, and displaying the waveform after digital filtering.

20

Picture 2-11 Waveforms after Using Bias Voltage

Picture 2-12 mathematical operation


Function Menu

Types

Setting math

CH1

Operand 1

CH2

Instruction

Operations:+,–,×,÷ et operand1 as the CH1 channel waveform

Set operand1 as the CH2 channel waveform

Operator

+

-

×

÷

Operand 2

Scaling Ratio

CH1

CH2

1/1

1/10

1/100

1/1000 operand1×operand2 operand1÷operand2

Set operand2 as the CH1 channel waveform

Set operand2 as the C

H

2 waveform

Scaling the waveform according to the ratio,four ratios:1/1、1/10、1/100、

1/1000

FFT frequency spectrum analysis

To change the time domain signal（YT）into frequency spectrum signalby using the fft (fast foourier transformation)mathematic operation. You can conveniently observe the following types of signal with the FFT.

● Measuring harmonic waves and distortion in the system

● Showing the noise property in the system

● Analyzing vibration

Basic frequency component 1kHz

Picture 2-13 FFT frequency spectrums

21


22

Form 2-3：FFT menu instrucition

Function Menu Setting Instruction

Types

Information

Source

FFT

CH1

CH2

FFTmathematic operation

Set CH1 as the operation waveform

Set CH2 as the operation waveform

Window function

V e r t i c a l coordinate

Hamming

Blackman

Set Hamming window function

Set Blackman window function

Rectangle Set Rectangle window function

Hanning Set Hanning window function linear/ dbv

Set the vertical coordinate unit

as linear or dbv

Signals with DC components or deviation shall result in mistakes or deviations of the FFT waveform components The channel could be set as AC coupling mode to reduce the DC components and the aquisition mode of oscilloscope could be set as the average acquisition to reduce random noise of the repeated or single pulse events and the aliasing frequency component.

Select FFT window

Suppose the YT waveform repeats continuously, the oscilloscope shall make the FFT shift to the time record with limited length.when the period is an integer, the YT waveform amplitude shall, in the start and end, remain the same and the waveform will not interrupt.

Whereas the YT waveform period is not an integer, which would result in the waveform amplitude diffenrences between the start and the end, thus the high frequency temporary interruption will occur at the connector.

The effect is called leakage in frequency domain. In order to prevent the leakage, to multiply the original waveform with a window function to force value of the start and end to be 0


Form 2-4:

FFT Window

Rectangle

Hanning

Hamming

Blackman

Characteristics he best frequency resolution and the worst amplitude resolution, basically similar to the status of non-add window

Compared with the rectangle window, it has quite good frequency proper measuring content

Signal level is basically the same before and after Transient or short pulse. Equiamplitude sine wave with quite similar

frequency shall have bandwidth random noise of spectrum

that shifts quite slowly.

resolution and quite poor amplitude resolution.

Frequency resolution of the Hamming window is slightly better than that of

Sine, period and narrowband random noise. Signal level

varies greatly before and after the transient or short pulse.

Hanning window。

The best amplitude resolution and the Mainly used for single frequency signal to find higher level worst frequency resolution. of harmonic wave

23

24

Nouns explanation:

FFT resolution: It means the quotient between acquisition and operation.when the operation points are fix, the lower the acquisition rate is, the better the FFT resolution is.

NYQUIST frequency:

It shall need at least 2f acquisition rate to reconstruct the orinal waveform for the waveform being the highest frequency. It is also been called

NYQUIST norm, f here is the NYQUIST frequency and 2f is the NYQUIST acquisition rate.

Digital filtering function

Picture 2-14 Digital filtering



Form 2-5: Digital filtering menu instruction

Menu Function

Types

Information

Source

Filtering Types

Setting

Digital filtering

CH1

CH2

L o w p a s s

Highpass bandpass

Lower limit of

Frequency

―――

Higher limit of

Frequency

―――

Instruction

Digital filtering

Set CH1 as the filtering object

Set CH2 as the filtering object.

Set the filter as lowpass

Set the filter as highpass

Set the filter as bandpass

Only effective in highpass or bandpass filtering and set the lower limit of frequency with theknob

MULTIPURPOSE.

Only effective in lowpass or bandpass filtering and set the higher limit of frequency with the knob

MULTIPURPOSE.

25


26

Reference Waveform

Reference waveform could be accessed or closed by the REF menu. Reference waveforms are restored in the non-easy-lost storage of the oscilloscope or the USB and have names as follows: REF A, REF B.Please follow the following steps if displaying( access) or hinding( close) reference waveform is needed.

1. Press key REF

2. Press F2 Callback to choose with the knob

MULTIPURPOSE information source position, which include 1-10. When you choose one of the waveform stroge positions, say 1,press konb to choose and to access the waveform originally restored in the position. As regards to store and callback the reference waveform on the USB, please refer to storage and callback

3. Press key to choose REF B and choose the second information source involved in operation, similar to step2.

4. Close the reference waveform and please close the REF menu.

In application, the oscilloscope could be used to test and observe the relevant waveform and compare the present waveform with the reference one and then analyze it. Press key REF to display the reference waveform menu, setting instructions referred to the form 2-6.

Note: when the reference waveform is callbacked or introduced, press key AUTO, the waveform will remain.


Form 2-6 REF Menu Instruction

Function menu

Reference waveform

Callback

Introduce

Note 1: if choose the inner storage position,you can choose 120 ,and if choose the outer storage,

Setting

REF A

REF B

Instruction

Set reference waveform as REF A

Set reference waveform as REF B please plug in the USB with the indication:USB equipment has been installed successfully, press document option dialogue box.

―――

To call out 10 storage positions from the machine and choose one of the stroge position waveform with konb

MULTIPURPOSE and press down it to confirm.

Note 2: waveform document stored in present

USB shall be listed in the USB document option dialogue box. Choose one of the storage waveform with the konb MULTIPURPOSE and press it to confirm.

Press key F5 and pop up the file-choosing dialogue box and list the waveform plug in the USB

Not plug in USB documents stored in the

USB root directory and choose one of the storage waveform with the konb

MULTIPURPOSE,press down it to confirm.

Press F5, indicating that

function is not in use, please

plug in the USB.

Set horizontal system

Horizontal control

Changing horizontal scale (time base) and horizontal position (trigger position) in the trigger memory with the horizontal control knob, the waveform relative screen center could be expanded or extracted by changing the horizontal scale and the horizontal position shift is namely the position shift relative to the waveform trigger point.

Horizontal position: regulate the horizontal position of the 27

28

UTD2000M User Ma nual c h a n n e l w a v e f o r m ( i n c l u d i n g m a t h e m a t i c Form 2-7 horizontal menu instruction operation).

Function menu Setting Instruction

The control key's resolution shall change with the

Press F1 return to main time base. Horizontal scale: regulate the main time Main Window —— base, namely SEC/DIV. when the extension time window base is opened, window width could be changed by

Extension

——

Press F3 return to changing horizontal scale knob to change delay

Window extension window scanning time base.

Load-off Time

Regulate load-off time

2. Horizontal control knobs: knob SCALE can be

100.0000ns

～1.5000s

with MULTIPURPOSE used to change the horizontal time base scale and the horizontal shift knob POSITION used to

Estension Window

Extension window could be used to magnify a section change the relative position of trigger point in screen.

of waveform and to check the picture detail. Referred to picture 2-15

Horizontal control key menu MENU :displaying horizontal menu (referred to the following form)

Picture 2-15 screen diplay of extended window


There are 2 displaying areas in the screen, as shown in the above picture, under the extension window mode.The upper part, displaying the original waveform, can shift left and right with the waveform if the trigger has been set correctly.

In collecting data, instrument firstly collect enough data to draw waveform on the left of trigger point, then wait for the trigger condition horizontal shift knob POSITION, or magnify and reduce the selection area with shift knob SEC/DIV.

to occur and to continuously collect data at the same time. When detecting the trigger, the

The lower part is a horizontal extension waveform. It instrument shall continuously collect enough is worthy to note that resolution of the extension data to draw waveform on the right of the time base shall be increased relative to the main time base (as shown in the above picture).as the trigger point.

Trigger control area of the UTD2000M digital waveform displayed in the whole lower part correspond to selected area in the upper part, extension time base could be increased by revolving the horizontal knob SEC/DIV to reduce storage oscilloscope operation board concludes trigger level knob HORIZONTAL , trigger menu key MENU , force trigge key FORCE and single trigger key SINGLE.

the seletion area, namely increasing the horizontal Trigger level knob HORIZONTAL extension times of waveform.

To regulate the trigger level with Level control of

Note: the maximum extension time base is 50ns/div the Trigger part, in changing the trigger level, a

Setting trigger system

Trigger dicides when oscilloscope starts to collect data and display waveform. The oscilloscope will transform the unsteady display into meaningful horizontal line temporarily appeared on the screen shall display the level. Trigger level sign would be a small arrow if the line disappears.

Trigger level could be set as 50% amplitude level of the trigger source waveform by Pressing knob

29


30

HORIZONTAL.

Force trigger pulse width of trigger signal meets the set trigger condition.

Pressing the key FORCE( force trigger) will produce Vedio trigger: to trigger with vertical or horizontal an immediate trigger event. The function applies signal of the standard vedio signal.

to the following: Slope trigger: to set the oscilloscope to positive or

If the waveform could not be seen on the screen in negative slope trigger to the designated time.

using the normal trigger mode normal, press the key Instructions about types of trigger menu are as

FORCE (force trigger) to collect signal baseline follows: and confirm the normality of collection. Edge trigger:

Press key (single) to set the single trigger and press Edge trigger menu is referred to form 2-8 key FORCE( force trigger) to conduct a test collecting to confirm the control setting.

Trigger control menu MENU

Trigger types: edge, pulse width, vedio and slope.

Edge trigger: set the signal to produce trigger at the risingor fallingedge. To change trigger point vertical postion at the trigger edge with konb

HORIZONTAL( trigger level) , namely the intersection on the displaying interface of trigger level line with signal edge.

Pulse width trigger: trigger will occur when the


Form 2-8 edge trigg

Menu Function

Types

Information Source

ITrigger Coupling

Trigger mode

Edge types

Setting

Edge

CH1、CH2

EXT、EXT/5

AC LINE

Alter

DC

AC

Low frequency restriction

High frequency restriction

Automatic

Normal

Single

Rising

Desending

Risingand desending

Instruction

Set CH1or CH2as the information source trigger signal

Set the external trigger or it divided by 5 as information source

Set signals of AC house current trigger

CH1and CH2 as trigger source alternately.

Be accessible for the input signal AC and Dccomponents.

Prevent input signal DC components.

Restrict the low frequency components lower than 80kHz in the signal.

Restrict the high frequency components higher than 80kHz in the signal.

When there are not trigger signal input, the system will collect automatically waveform data and to display scanning baseline and when there are, it would automatically transform into trigger scanning.

Stop collecting data When there are no trigger signals and will occur trigger scanning when there are trigger signals.

When there are trigger signal input, it will trigger once and then stop.

Set to trigger at the risingedge of signal

Set to trigger at the fallingedge of signal

Set to trigger at the risingand fallingedge of signal once each

31

32


Pulse width trigger

Pulse trigger set the trigger time with the pulse width, and you can capture the abnormal pulse by setting the pulse width condition

Form 2-9 Pulse width trigger

Menu Function

Types

Setting

Edge

CH1 、 CH2

EXT、EXT/5

Instruction

Information source

Trigger Coupling

Trigger mode

AC LINE

Alter

DC

AC

Low frequency restriction

High frequency restriction

Automatic

Set CH1or CH2as the information source trigger signal

Set the external trigger or it divided by 5 as information source

Set signals of AC house current trigger

CH1and CH2 as trigger source alternately.

Be accessible for the input signal AC and DCcomponents.

Prevent input signal DC components.

Restrict the low frequency components lower than 80kHz in the signal.

Restrict the high frequency components higher than 80kHz in the signal.

When there are not trigger signal input, the system will collect automatically waveform data and to display scanning baseline and when there are, it would automatically transform into trigger scanning.


Menu Function Setting

Normal

Trigger mode

Single

Pulse width setting Form 2-10

Form 2-10 Pulse width setting

Menu Function

Pulse width polarity

Setting

Positive pulse width

Negative widthpulse

Pulse width conditions

<

>

=

Pulse width time

Back

20.0ns～10.0s

——

Instruction

Stop collecting data When there are no trigger signals and will occur trigger scanning when there are trigger signals.

When there are trigger signal input, it will trigger once and then stop.

Set the pulse width

Instruction

Set positive pulse width as trigger information source set negative widthpulse as trigger information source

To trigger when the input signal pulse width is smaller than

the set value of pulse time.

To trigger when the input signal pulse width is bigger than the

set value of pulse time.

To trigger when the input signal pulse width equals to the set value of pulse time.

Trigger pulse width setting 20.0ns～10.0s;with the knob

MULTIPURPOSE

Back to the pulse width trigger menu

33

34


Vedio Trigger n choosing the vedio trigger, vertical or horizontal trigger of ntsc or pal standard signal will occur.

Trigger menu is referred to form 2-11.

Form 2-11 vedio trigger

Function menu

Types

Information

Source

Vedio setting

Setting vedio

Instrucition

H1\CH2 Set CH1or CH2 as the information source trigger signal

Set the external trigger EXT\EXT/5

or it divided by 5 as information source

Form 2-12 Enter into vedio setting

Form 2－12 Vedio setting

Function menu

Vedio System

Synchronous

Setting

NTSC

PAL

Odd vertical

Even vertical

All horizontal

Designated horizontal

Instrucition

Vedio signal for NTSC system

Vedio signal for PAL system

Set to trigger at odd vertical

Set to trigger at even vertical

Set to trigger synchronous to the horizontal sinal

Set to trigger synchronous to

the designated vedio horizontal and to regulate with knob MULTIPURPOSE；

PALsystem:625 horizontal ，

NTSCsystme ：525horizontal

When the vedio system is PAL and the synchronous mode is horizontal, screen display shall be as shown in the picture 2-14 and whe the synchronous mode is vertical, screen display shall be as shown in the picture 2-16.


Picture 2-16 Vedio trigger horizontal synchronous

Regulating trigger load-off time

Trigger load-off time could be used to observe comples waveform (ex. Pulse sequence). Load-off time means the time oscilloscope waited to restart trigger circuit.during load-off time, oscilloscope will not be triggered till the ending of load-off time.taking picture 2-17 as an example, load-off time coulde be set as pulse sequence width when a series of pulse sequence are required to be the first pulse trigger.

Form 2—13 trigger load-off menu

Function menu

Window

W i n d o w extension

Load-off time

Setting

——

——

1.50000s

Instrucition

Press key F1 into Main Window

Enter into window extension menu,shown in form 2—13

knob MULTIPURPOSE

Picture 2-17 Vedio trigger vertical synchronous

35

36

Picture 2-18 trigger load-off could be used to synchronize with complex waveform

Instrucition

1. Choosing edge trigger source in the trigger MENU in accordance with normal signal synchronous method firstly, and regulate trigger level to stabilize waveform.

2. Press down horizontal MENU key to display horizontal menu.

3. Regulating knob MULTIPURPOSE on the upper

UTD2000M User Ma nual part of board, the trigger load-off time shall change with it and until the waveform displaying is steady.

Operation techniques: load-off time is normally slightly shorter than that of Grand Period, ex. to observe waveform of rs232 communicaition signal and the load-off time is slightly longer than that of each frame starting from the edges, which are easily being observed.

Nouns Explanation

1. Trigger Source: producing signalto trigger.

Trigger could be obtained from many information sources: input channel(CH1、CH2), external trigger

(EXT、EXT/5), AC LINE etc.

■ Input Channel: trigger information source mostly used is to choose one of the input channe: CH1 and CH2. No matter channel input waveform is displayed or not, to choose one channel as the channel for trigger information source.


■ External Trigger: trigger signal could be input directly via external input port.For example,the external clock or signal from circuit being measured and display and when there is trigger signal,it will transform into trigger scanning to synchronize with signal.

could be used as trigger information source.Ext Noting: under the mode, it is permitted for 50ms/div trigger source collects external trigger signal via EXT or slower time base gear to set rolling waveform that trig input port and the signal trigger level range could be set from－0.8V to+ 0.8V. With EXT/5 and EXT without trigger signal.

■ Normal trigger: oscilloscope shall,under normal trigger signal being divided by 5, trigger level range could extend from -4V to +4V, thus enabling external trigger to input bigger signal.

■ AC LINE: namely the AC house current source.

The trigger mode could be used to observe signals related with AC house current, such as relations between lighting equipment and power supplying equipment, to obtain stable synchrony.

2. Trigger Mode: deciding the action way of oscilloscope under the trigger event. Three trigger modes: automatic, normal and single trigger.

■ Automatic trigger: when there is no trigger signal input,system will automatically collect data trigger,collect waveform only the trigger conditions are met.stop collecting data and wait for trigger when there is no trigger signal and it will produce trigger scanning when there is trigger signal.

■ Single trigger: under single trigger,user presses once the key operation and the oscilloscope will wait for trigger.When the instrument detects a trigger,the waveform will be collected and displayed,then stop it.

3. Trigger Coupling: trigger coupling decides which components shall be transmitted to trigger circuit. Coupling types include:DC,AC,low frequency restriction and high frequency restriction.

37


■ DC permits all component of the signal to pass through.

■ AC prevents DC components and attenuate signal less than 10Hz.

■ Low Frequency Restriction prevents DC components and attenuates low frequency components less than 80 kHz.

type video

■ High Frequency Restriction attenuates high frequency components over 80kHz.

4. Pretrigger/Delay Trigger: data collected before trigger event/after trigger event.Trigger position is synchronization

38 observ pretrigger and delay trigger information about

6div. For more pretrigge information you can revolve horizontal shift POSITION to regulate horizontal shift of waveform.By observing pretrigger data,you can obseve waveform information before the trigger.For example,capturing glitch caused when circuit starts,and you can find out the genesis by observing and analyzing pretrigger data.

Set sampling system

As shown in the following picture, function key of the sampling system is ACQUIRE in the control area.

Using the key ACQUIRE to pop out the sampling set menu and to regulate sampling modes by menu control key.

Function menu Setting

Normal sampling

Peak value sampling

Sampling Modes

Average frequency

Average

2～512

Instrucition

Normal sampling

Peak value detecting,

detecting glitch and reduce the possibility of false wave.

Set the average sampling mode and to display average frequency.

Set the frequency of average and step with multiples of 2,

2、4、8、16、32、64、

128、256、512, and revolve multipurpose knob to change the frequency.


To set by changing the acquiring mode and to observe display changes of the wave caused by the above operation

False wave could be effectively reduced by using the peak value detecting mode.

When big noise are contained in signal and average mode and 32 averge mode have not been adopted, the collected waveform display shall be as follows in picture 2-20 and 2-21.

Picture 2-20 Waveform that have adopted 32 average

Noting: please choose the peak value detecting mode to prevent confusion about envelop in the observed signal and choose average sampling mode to reduce random noise in the displayed signal, frequency of average value will step with multiples of 2 , which could be chosen from 2-512 .

P icture 2-19 Waveform that have not adopted average

39

40


Nouns Explanation

Set display system

Realtime sampling: namely the data needed for a

As shown in the following picture, DISPLAY in the sampling.Maximum realtime sampling rate of the control area is function key of the display system.

instrument is 1GS/s.

Using the key DISPLAY to pop out setting menu

Nomal Mode: Nomal collecting mode could be used to as follows and regulate the display mode with conduct fastest collecting under any time base gear. The menu control keys.

normal mode is the default mode.

Peak Value Detecting Mode: under which, oscilloscope will find out maximum and minimum value of input signal at each sampling interval and display waveform with those values. Thus, oscilloscope could acquire and display narrow pulses, or narrow pulses might be leaked under the Normal mode and noise could be louder.

Average Mode: under the acquisition mode, oscilloscope will acquire several waveforms and obtain the average, then display the final waveform. For the periodic signal, the mode could be used to reduce random noise.


Form 2-15 Display Menus

Menu Function

Types

Format

Grid

Setting

YT

XY

Vector

Point

Full

Grid

Cross Hair

Frame

Automatic

Short persistence

Continuous

Long persistence

Limitless

Instruction

Display voltage value relative to the time(horizontal scale)

X-Y display mode

Shown by the line with sampling points

Show sampling points directly

Set grid display mode of waveform display area as: full, grid, cross hair or frame mode.

Screen waveform renew with normal refresh rate

Waveform data on the screen refresh after remaining short time. Waveform data on the screen refresh after remaininglong time.

Original waveform data on the screen shall, if new data are continuously displayed, remain displaying continuously and until the function have been closed.

41


42

X-Y Mode Lissa jous Graphics by changing time base gear.

Under the mode, CH1voltage will be shown on the Apart from with unique x-y display mode and horizontal axis(x axis), and CH2 voltage will be shown displaying channel waveform and x-y Lissa jous on the vertical axis(Y axis) Graphics, the series of instrument possess functions as follows:

■ Automatic measuring function

■ Cursor measuring function

■ Reference or mathematic function

The following functions cannot work under x-y mode:

■ Window extension function

■ Horizontal knob POSITION

Key Points:

Picture 2-21 waveform display under X-Y Mode

Noting: under X-Y Mode, to shift xy picture horizontally with CH1 POSITION knob and shift it

Display format: vector display will fill in blanks between neighboring sampling points and point display only display the sampling point.

Waveform capturing rate: it means the frequency vertically with CH2 POSITION knob. It is possible to oscilloscope refreshes screen waveforms and it will regulate size and shape of xy picture with SCALE affect the ability to fastly observe signal dynamic knob with two channels and it will display effective changes.


Set storage system

Operation steps:

Pressing STORAGEto enter into type of menu: reference waveform, setting and bitmap.

1. choosing the reference waveform to enter into the

Form 2-16 Reference waveform storage menu

As shown in the following picture, the STORAGE

(storage)in control area is the function key of storage system.

You can store waveform of setting status of oscilloscope into the inner storage area of USB by using key to display storage setting menu,and can fetch the stored waveform from it with RefA (or RefB), or fetch setting status from setting option menu with key STORAGE .when plugging in USB, you can store waveform display area into USB with the bitmap format.

Function menu

Types

Information

Source store

Output

Setting

Reference waveform

CH1

CH2

1～10

Form 2-17

Instrucition

Choose waveform on the screen displayed by the signal

The chosen waveform from channel CH1.

The chosen waveform from channel CH2.

Store reference waveform into the inner storage area of the machine and to choose the storage positon with knob

MULTIPURPOSE and press it to confirm.

Enter into USB menu

16 .fetch the reference waveform from REF menu(Reference waveform page:xx)after storing it and details are referred to REF operation steps.

43


Form 2-16 Reference waveform derived USB menu

Function menu Setting Instrucition that output into USB with knob

File name ——

Format confirmation

Notes:

CSV、inner

——

Referred to notes.

After confirmation, backto reference waveform storage menu, and output into USB if there is or indications such as:the function cannot work and please plug in USB will occur on the left lower part of screen.

On Inner and CSV format: inner or CSV format could be chosen in Outputting Reference Waveform into USB.The inner format only display on the oscilloscope under REF but on other interface. CSV format could be opened with EXCEL in computer between voltage and time.

2. Choose setting to enter into it to setting storage menu as shown in form 2-18

Form 2-18 Setting storage memu

Function menu Setting Instrucition

Types

Store

Fetch

Input

Output

Setting

1～10

To store the present boardsetting status of the oscilloscope

To store the setting into the machine inner storage area and select storage position

with knob MULTIPURPOSE and press down it to confirm.

1～10

Fetch 10 storage positions out of the machine and select one of the storage position with knob MULTIPURPOSE and press down it to confirm.

—— Pop out setting file list after connected with USB.

Form 2-19 Enter into USB menu.

44


Notes: after plugging in USB in the oscilloscope and selecting input,the oscilloscope will pop out the conrresponding dialogue box and list corresponding setting storage files under the USB root dialogue if there are and select one of storage position with konb MULTIPURPOSE and press down it to confirm a group of setting needed .If there are no USB pluged in,it will indicate:no valid data.

Form 2-19 Set output—USB menu


File name

Confirmation

——

——

3. Select bitmap to enter into the bitmap output menu, referred to form 2-10

Notes: bitmap could be output into USB only.

Bitmap output menu Form 2-20


Bitmap ——

Instrucition

Output waveform on the sreen into USB in the bitmap format.

Output

Form 2-21 Enter into USB menu

Instrucition

Set file name for the file that output into USB with knob

MULTIPURPOSE and F 1 key.

After confirmation,backto setting storage menu, and output into USB if there is or provide indications such as: the function cannot work, please plug in USB.

USB menu Form 2-21

Function menu

File name confirmation

Setting

——

——

Instrucition

Set file name for the file that output into USB with knob MULTIPURPOSE and F1 key.

After confirmation, backto setting storage menu, and output into USB if there is or pop out indications such

as:the function cannot work,please plug in USB.

45


46

Print screen with a click

Plug in USB into oscilloscope and press key PrScrn, the screen picture would be stored into the USB quickly with fault file neme:DSO***.BMP.

Automatic measuring

As shown in the following picture, MEASURE is the automatic function key.the following introduction shall help you familiar with the powerful automatic measuring function possessed by UTD 2000M series of digital oscilloscope.

Measurement menu

Operation instruction: press key MEASURE firstly, the screen will display 4 function options as shown in form 2-22：

Measurement menu (1) Form 2-22


All parameters

Parameter setting

——

——

Instrucition

Display all parameters and close it automatically with the key F5.

Press key F and select the parameter needed with knob MULTIPURPOSE and press down it to confirm, displaying at most 4 parameters concurrently from left to right

Indicator

—— ndicate physical meaning clearly of the measurement parameter by lines,open the indicator and select parameter needed to

Delete measurement

Next page

——

Delete all parameter settings.

Enter into next page


Form 2-23 Measurement menu(2)

Function menu

Advanced parameter

Setting

Delay

Phase

Above page

Time interval between risingor fallingedge of random channel waveform referred to form 2-24,2-25

Back to the above page

Instrucition

Delay menu Form 2-24

Function menu

From

From waveformedge

To

To waveformedge

Setting

CH1、CH2 r isingand descending

CH1、CH2 risingand descending confirmation ——

Instrucition

Select a channel waveformas the delay reference waveform.

Select 10％―90％midpoint of the waveform risingor fallingedge.

Select a channel waveformas the one measuring delay.

Select 10％―90％midpoint of the waveform risingor fallingedge.

Complete the choice ofmeasuring delay waveform measurement point and back to measurement menu.

Phase menu Form 2-25

Function menu

From

To

Confirmation

Setting

CH1、CH2

CH1、CH2

——

Instrucition

Select a channel waveform as the reference waveform for phase.

Select a channel waveform as the reference waveform for phase.

Complete the choice of measuring phase difference waveform measurement point and back to measurement menu.

47

48


Parameter setting could be used for parameter quick measurement,the instrument normally contains 24 measurement parameters and 2 advanced measurements (delay, phase).normally, in detecting, user needs only to measure several and designates those parameters as parameter setting instead of all parameters.the set parameter shall display on the frequency, just follow step 1 and select frequency option in the poped up setting parameter dialogue box,thus deleting the frequency option displayed below the screen.

4. The way to set parameters to measure different channels are: press once CH1 if need to measure

CH1, color of measurement types in the measurement screen.

dialogue box will be blue and the chosen

Selection and deletion of the parameter settings shall measurement parameters are blue font as shown in 2follow the following steps:

1. Press key MEASURE to display automatic measurement menu and to select setting parameter

20. Similarly, press CH2, the setting parameters are used for measuring CH2, as shown in picture 2-21.

Notes: in measuring advanced parameter, the option, the setting parameter option dialogue box will selected advanced parameter can't be deleted pop out on the screen.

individually, and only be deleted from screen by

2. Select and confirm by revolving the knob

MULTIPURPOSE (multipurpose) and after the setting

Delete Measurement option.

parameter selection, press key F5 to close setting parameter dialogue box.

3. If it is need to alter any measurement options, say,


Picture 2-22 Select Setting Parameters

Picture 2-24 alter single setting parameter (2)

Automatic measurement of Voltage parameter

Picture 2-23 Voltage Parameter Diagram

Picture 2-23 Alter single setting parameter (1)

Picture 2-25 Voltage Parameter Diagram

49


50

UTD2000M eries could automatically measure the follong voltage parameters:

Vpp: the voltage value from the highest point to the lowest of the waveform.

Vmax: voltage value from the highest point of waveform to GND(ground).

Vmin:voltage value from the lowest point to

GND(ground).

Vamp: voltage value from top to base.

Vmid: half of the sum of top waveform votage value

Vtop : voltage value from top to GND(ground).

Vbase: voltage value from base of waveform to

GND(ground).

Over shoot: ratio of the difference between waveform maximum value and top value to the amplitude

Preshoot: ratio of the difference between waveform minimum value and base value to the amplitude

Average：average value of signal in a period

Vrms：namely the effective value. The produced energy according to conversion of AC signal in a period is equivalent to the DC voltage that produces the equivalent energy,namely the root mean value.

Automatic measurement of time parameter

Picture 2-26 Time Parameter Diagram

UTD2000M series could automatically measure 9 time parameters:signal frequency,period,rise time, fall about the time parameters are as follows:


RiseTime:Time for waveform amplitude to rise from

10 %to 90 % measure the ΔV and select time to measure Δt.

There are two modes of cursor: independent mode,

FallTime:Time for waveform amplitude to fall from under which you can independently regulate positons

90%to 10% of the two cursors and tracking mode, under which

+Width:The width when+width is at the 50 % aplitude.

you can shift two cuosors simultaneously by pressing

-Width:The width when-width is at the 50 % aplitude.

the key SELECT.

Delay (rising or falling edge):The delay time from waveform to waveform(during advanced measuring)

+Duty:Ratio of+Width to period

Duty:Ratio of-Width to period

Cursor Measurement

Press key CURSOR to display the measuring sursor and cursor menu, and then regulate the cursor postion with multipurpose knob controller.

Two CURSOR modes could measure by shifting the cursor: voltage and time. In measuring voltage, select cursor type as voltage and regulate two cursors by pressing key SELECT and revolving knob MULTIPURPOSE, respectively, namely to

Function menu

Types

Modes

Vertical unit

Setting

Time

Modes

Second

Hz

Ratio

Phase

Instrucition

Cursor used for time measurement

Independently shift any one of the two cursors.

Simultaneously shift the two cursors while maintaining the Δt.

Measurement parameter is time.

Measurement parameter is frequency.

Measurement parameter is percentage.

Measurement parameter is phase.

51


52

F orm 2-27 Voltage Cursor Measurement Menu

Function menu

Types

Modes

Setting Instrucition voltage

Independent

Tracking

Cursor used for voltage measurement

Independently shift any one of the two cursors.

Simultaneously shift the two cursors while maintaining the ΔV.

Base

Horizontal unit

Ratio

Measurement parameter is voltage.

Measurement parameter is percentage.

Notes:

1. Under the indepent or tracking mode, press knob

MULTIPURPOSE and select one cursor,the cursor shall be a solid line and revolve the konb

MULTIPURPOSE to shift cursor position.

2.Two options for raio:0％ and 100％.The present postion 100％ means to setΔvalue between the two cursors as 100％ and the 6 grid position 100％ means to set space position of screen±3div as 100％.

3.When cursor function is open,the measurement value shall display on the left top corner of screen and

＠is the cursor value being selected.

Auxiliary Function Setting

UTILITY in the function menu area is the auxiliary function key.

To pop out auxiliary system function setting menu with the key UTILITY .


Form 2-28 Auxiliary Function Menus(1)

Menu Function Setting

Self-tuning system information

System configuration Delete information

Time setting

Factory reset

Contrast

Language nterface style

Menu display

Interface setting

By detecting

Waveform recording

Next page

Grid Brigtness

Back

On \Off

Form 2-27

Instruction

Implement self-tuning

Display information such as:machine mode,version and serial number

Delete the stored reference waveform and setting

Enter into date and time setting , in form 2-28

Restore the factoryreset and in appendix E

Regulate contrast of the screen.

Select language with the knob MULTIPURPOSE and press down

it to confirm.

Classic,traditional and modern

Set the wait time formenu closing: 5s、10s、20sand automatic；

It cannot be automatically closed with manual control but by

MENU ON/OFF to close or open.

Regulate grid brightness in display area with the knob

MULTIPURPOSE. Back to the auxiliaryfunciton menu.

Detect if the input signal is within the stipulated scope.

Set to operate waveform recording

Enter to next page

53


Form 2-28 Auxiliary Function Menus(2)


Frequency meter

AUTO strategy

Close menu

Obove page

Close,open

Form 2-36

——

——

Instrucition

Display on the right topcorner of screen when open it, in reference to the notes.

Set conditions in using AUTO .

Close menu option on the right side of screen

(with shortcut key

Menu Off/On ).


Form 2-29 Pass Testing 1

Function menu

Permit testing

Setting

Close

Open

Input

Information source

Display information

Next page

Pass

Fail

CH1

CH2

Open

Close

——

Instrucition

Open the Pass/Fail

testing

Confirm input conditions for Pass/Fail port on the back of buzzer and oscilloscope.

Select information source being selected

Select if displaying statistic information on the screen

Enter into next page

54

Notes:Frequency meter is the meter for trigger event frequency in the trigger channel.The frequency meter shall be effective when the trigger type being edge or pulse width but the vedio type and shall not be used for the alternative in trigger source.


Form 2-30 Pass Testing 2

Function menu

Operate

Stop setting

Template settin

Back

Above page

Setting

Form

2-31

Instrucition

Stop operate

Stop Pass/Failjudgement

Restart Pass/Failjudgement and statistics.

Set a threshold value and judgementcondition for passing frequency or failing frequency,when reach the threshold value judgement condition,statistics and

Pass/Fail judgement shall stop automatically.

Form

2-32

——

——

Set Pass/Fail judgement template and construct it.

Back to function menu


Form 2-31 Pass Testing( stop setting menu)

Function menu Setting Instrucition

Stop types

Stop conditions

Threshold

value

Back

Pass frequency

Failure frequency

>=

<=

Set the stop types: pass orfailure frequency.

Set the stop conditions

1～10000

Set the threshold value of stop conditions by knob

MULTIPURPOSE

—— Back to function menu

55


56

Form 2-32 pass testing(template setting menu)

Function menu

Reference waveform

Setting

CH1

CH2

REFA

1～100

Instrucition

Set CH1or CH2 or REFA waveform on present oscilloscope as reference.

Horizontal tolerance

Vertical tolerance

Construct template

1～10000

——

Set by the knob MULTIPURPOSE.

Set by the knob MULTIPURPOSE.

Store and construct template and back to the above page.

Form 2-33 Waveform Recording Menus


■

(F1)

● (F3)

——

——

——

Instrucition

Playback key

1. Press the key to playback and display the playback screen number on the screen.

During the playback,it would stop by revolving the knob

MULTIPURPOSE and select waveform display of any numbered screen.

2. Press F1 to stop and press F2 to continue to playback.

Stop recording

The recording key:press key MENU ON/OFF to record based on the displayed information and the screen shall display screen number needed to record.After recording,with the maxium recording data of 800 screen,and the recorded data shall lose after the machine is closed.The function can not work under SCAN or average work status.


Form 2-34 Time Setting

Function menu

Time displaying

Minute & hour

Date & month

Year confirm

Setting

On, off

Instrucition

Open time displaying and thetime shall not display if the frequency meter is on.

——

——

——

——

Pess F2 to select setting minute or hour and regulate with knob

MULTIPURPOSE.

Pess F3 to select setting date ormonth and regulate with knob MULTIPURPOSE.

Pess F4 to select and

regulate with knob

MULTIPURPOSE.

Confirm the setting and back to auxiliary menu.

Automatic Setting

Automatic setting could be used to simplify the operation and after pressing the key AUTO ,oscilloscope can automatically,based on amplitude and frequency of waveform,to regulate vertical scale coefficency and horizontal time base gear and to enable the waveform to display steadily on the screen. In automatic setting, the system shall automatically regulate based on setting status of AUTO stategy, when the AUTO strategy is open,system settings are as follows:

57


58

Form 2-35 automatic setting

Function Open

Bandwidth restriction Full bandwidth vertical scale coefficency

VOLTS/DIV

Opposite phase

Horizontal position

VOLTS/DIV

Acquisition mode

Regulate based on signal amplitude

Coarse tuning close

Automatic tuning

To regulate based on signalfrequency

Normal sampling

Sampling mode

Fast collecting

Trigger type

Trigger information source

Trigger coupling

Trigger modes

Load-off time

Trigger level

Slope types

Signal recognition

Equivalence or realtime present setting keeping off

Edge

Based on information

CH1or CH2,in reference to notes.

To keep present setting:

DC,AC,low orhigh frequency restriction.

Automatic

Minimum value

Set as 50%

Rise

Automatically regulate

the channel

Locking

Full bandwidth or 20MHz to keep the present setting.

Based on signal amplitude

Coarse tuning

Open or close to keep present setting.

Automatic tuning

To regulate based on signalfrequency

Keep one of present setting:normal sampling ,peak value, average

Equivalence or realtime present setting keeping off

To keep present setting :edge,pulse width,vedio or slope

To keep present setting :CH1、CH2、EXT、EXT/5 or AC Line.

To keep present setting :DC,AC,low orhigh frequency restriction.

Automatic

Keep present setting value

Set as 50%

Keep present setting

Open the channel


Notes: Regulations of trigger information source under AUTO are based on:

1. The signal inputchannel shall be used as the trigger source when only one channe with iput signal.

2. In using multi-channels, automatic setting function shall set vertical control of each channel and to set horizontal and trigger control by using activity channel with smallest number.

3. CH1 channel shall be used as trigger source when no signal in all channels.

AUTO (automatic setting) Strategy

Open:Under AUTO,relevant setting will back to fault status and complete the AUTO setting.

Locking: under AUTO, lock the relevant presetting status and to complete AUTO setting. AUTO stategy menu shall display the needed setting project in the automatic setting process and the projects are as follows:

Form 2-36 automatic option setting

Function menu

Channel setting

Setting Instrucition

Locking The chosen channel setting shall not be changed in

Open automatic setting.

Channel shall be set based onthefault status in automatic setting.(in form 2-35）

Sampling setting

Trigger setting

Signal recognition

Locking The chosen channel sampling mode shall not be changed in

Open automatic setting.

Sampling mode shall be set based onthefault status in automatic setting.(in form 2-35)

Locking The confirmed trigger setting shall not be changed in automatic setting.

Open Trigger shall be set based onthefault status in automatic

setting.(in form 2-35）

Locking Locking: keep the open or

Open close status of channel.

Open: open or close channel according to if there is signal.

59

60

UTD 2000M User Manual

Form 2-37

Function menu

Sampling mode

Setting

Normal sampling

Channel setting

Trigger Setting

Signal recognition

Band width restriction: full bandwidth Opposite phase:off

Trigger: edge

Trigger source: antomatic finding

Trigger mode: automatic

Trigger edger: rise

Automatically finding signal

Instrucition

One of sampling,peak value and average shall remains.

One of sampling,peak value and average shall remains.

Trigger: keep the chosen one unchanged: edge, pulse width and slope.

Trigger source: keep thechosen trigger source unchanged.

Trigger mode: automatic keep the trigger setting unchanged.

Stop finding signal when channel closed

Using RUN/STOP key

RUN/STOP is on the right top corner of oscilloscope control board and press the key with green light,and it is in operation and when the light is red,it stops working.When in operation,the digital oscilloscope is continuously collecting waveforms with screen displaying AUTO and when it stops the oscilloscope stops collecting with

screen displaying STOP.The key makes waveform collecting shift between operation and stop.

Menu On/Off (menu display On/Off) key

Display or hind present menu

The oscilloscope shall hind or displays the menu box with Menu On/Off and the key don't work to help information box and to press the HELP key to close the help menu information box.


Chapte Ⅲ application examples

Example 1: measuring simple signal

To detect one unknown signal in the circuit and fastly display and measure frequency and peak value of signal.

1. Please operate as follows if want to fastly display the signal:

1.1 Set probe menu attenuation coefficiency as 10 × and set the switch on probe 10 ×.

displaying signals. Please operate as follows if want to measure signal peak peak value and frequency:

2.1 Press key MEASURE to display automatic measurement menuy.

2.2 Press key F2 to select measurement menu types.

2.3 Select peak peak value with knob MULTIPURPOSE and press down it to confirm then select frequency.

2.4 press key F5 to quit the option box.

Then,the measurement value of peak peak value and frequency shall display on the bottom of screen as picture 3-1 circuit.

1.3 press key AUTO .

Oscillopscope shall make waveform to reach the maximum status by automatic setting and based on it, you can regulate vertical and horizontal gear in further until the waveform display meets your requirement.

2. Voltage and time parameter for automatic

measurement of signal

Oscilloscope can automatically measure most of

61

Piture 3-1 automatic measurement


62

Example 2: Capture single signal

The advantage and characteristic of digital oscilloscope lies in conveniently capturing nonperiodic signal such as pulse, glitch, if capture a single signal, you are needed to have certain priori knowledge about the signal before setting trigger level and trigge edge. For example, if pulse is a TTL level logic signal, the trigger level shoud be about 2V and trigger edge should be set as rising edge trigger.when the signal is uncertain, you can observe by automatic or normal trigger mode to confirm trigger level and trigger edge.

Steps are as follows:

1. Set probe and ch1 channel attenuation coefficiencty as the above example.

2. Set trigger

2.1 Press key MENU in trigger control area to display the trigger setting menu.

2.2 By using F1～F5 menu operatin keys in the menu to set trigger types as edge, information source as CH1, trigger coupling as DC, trigger mode as single and the slope type as rising.

2.3 Regulate horizontal time base and vertical gear to the adequate scope.

2.4 Revolve knob HORIZONTAL to regulate the proper trigger level.

2.5 Press function key RUN/STOP to keep oscilloscope in operation steadily and wait for signal that meets the trigger conditions to appear.if a signal, which meet the conditions of trigger level,namely a sampling,shall display on the screen. It is easy, by the function,to capture the accidental event such as the accidental glitch with great amplitude: to set trigger level as level slightly above normal signal and press key RUN/STOP to wait , when there are glitches,the machine shall automatically trigger and record waveform in the period before and after trigger.By revolving the horizontal knob POSITION in the horizontal control area of board to change horizontal position of the trigger position, the negative delay trigger with different length could be attained for observing waveform before the glitch occurrence.


Picture 3-2 capturing single signal

Example 3: Reduce random noise of the

sinal

When the signal being detected was overlapped with random noise, you can filter or reduce the noise by regulating oscilloscope setting to prevent interference to ONTOLOGY signal during measurement.

Picture 3-3 reduce random noise of signal

Operation steps are:

1. Set attenuation coefficiency of probe and

CH1 channel as the above example.

2. Connect signal to make waveform to display

steadily on the oscilloscope.

Operation steps are referred to the above example and regulation of horizontal time base and vertical gear please refer to the corresponding description in the previous chapter.

63

64


3. Improve trigger by setting trigger coupling.

3.1 press key MENU in the trigger area to display the trigger setting menu.

could remove random noise display to make waveform fine by using average sampling mode , easy for observation and measurement.steps are:

3.2 Set trigger coupling as low frequency restriction Press collection key on the board menu area to or high frequency restriction. Low frequency display sampling settin menu. Press key F1 and restriction means to set a high-pass filter to filter knob MULTIPURPOSE to set sampling mode as low frequency signal components fewer than 80 KHz, average status and press to confirm , then permitting high frequency signal component to regulate averge times with knob and step from 2 to pass. High frequency restriction means to set a low512 with power of 2 until waveform display meets the pass filter to filter high frequency signal components observation and testing requirements.( refer to the above 80 KHz, permitting high frequency signal component to pass. By setting low frequency following picture) restriction or high frequency restriction, low frequency or high frequency noise could be restricted and to attain steady trigger.

4. Reduce display noise by setting sampling modes

4.1 If waveforms are coarse resulted by random noise overlapped on the signal being detected, you


Example 4: Application of cursor measurement

The oscilloscope can automatically measure 24 types of waveform parameters. All automatic measurement parameters could be obtained with cursor and by using it to fastly measure time and voltage of waveform.

1. Measure a peak frequency of Sinc signal

Please follow the following steps if you want to

Picture 3-4 signal noise have been restricted measure a peak frequency of Sinc signal:

Notes:It is normal that the refresh speed of

1.1 Perss key CURSOR to display cursor

waveform display would slow down and without measuring menu.

afterglow effect by using average sampling mode.

1.2 Press key F1 to open cursor measuring function.

1.3 Press key F1 again to set cursor type as time.

1.4 Press key to set unit of vertical unit as Hz

1.5 To set cursor 1 as the first peak of Sinc by using knob MULTIPURPOSE.

1.6 Press SELECT to select cursor2 and then set cursor 2 at the second peak by revolving knob

MUTIPURPOSE.

65


Referring to the next picture

Notes: if measuring voltage with cursor, please

2.4 Press key F3 to set unit of the vertical unit as ratio.

refer to the second step above to set cursor types 2.5 Using knob MULTIPURPOSEand set cursor 1 at as voltage.

the first rising edge of pulse.

2.6 Press MULTIPURPOSE to select cursor 2 and set it as the second rising edge of pulse by revolving knob MUTIPURPOSE.

2.7 Press F4 present position 100％,and set △ value between cursor 1 and 2 as100％ .

2.8 Set cursor 1 at the first falling edge of pulse by knob MULTIPURPOSE, the △value then is duty.

Refer to the next picture.

66

Picture 3-5 Cursor measurement signal frequency

2. Measure duty of pulse signal

2.1 Press key CURSOR to display cursor measurement menu

2.2 Press key F1 to open cursor measurement function.

2.3 Press key F1 again to set cursor types as time.

Picture 3-6 Cursor measurement pulse duty


3. Measuring phase difference between two signals

MULTIPURPOSE.

2.7 Press F4 present position 360°, and set △value

To measure the phase difference when the sinc signal between cursor 1 and 2 as 360°.

passing circuit and the input port signal Ch1connecte 3.8 Press CH2 and CURSOR to set cursor with circuit and the output signal CH2 connected with measurement at measuring signal and maintain circuit.For convenience,the CH1 and CH2 shift cursor1 posiont ans shift the cursor 2 position.

should be set at the midpoint as shown in picture 3-8 3.9 Set cursor 2 at the first rising edge midpoint of and then measure under the following steps: CH2 signal by knob MULTIPURPOSE,the △value is

3.1 Press key CURSOR to display cursor measurement menu.

the phase difference the two signals.

Refer to the next picture.

3.2 Press key F1 to open cursor measurement function.

3.3 Press key F1 again to set cursor type as time.

3.4 Press key F3 to set unit of the vertical unit as phase.

3.5 Set cursor 1 at the first rising edge midpoint

(intersection with grounding wire) of the sinc signal by knob MULTIPURPOSE.

3.6 Press SELECT to select cursor 2, then set cursor 2 at the second rising edge by knob

Picture 3-7 cursor measurement of phase difference between two signals.

67


68

Example 5: application of X－Y function

Check phase difference between the two channels

Example: testing signal shall undergo phase changes when passing through circuit. Connect oscilloscope with circuit and monitor input and output signal of circuit, please follow the next steps if you want to check input and putput of circuit in the form of X－Y coordinate.

5.1 Set probe menu attenuation coefficiency as 10× and set probe switch as 10×.

5.2 Connect CH1 probe with input of network and

CH2 probe with output of it.

5.3 Please press CH1 and CH2 menu keys to open the second channels if channel have not been displayed.

5.4 Press key AUTO .

5.5 Regulate vertical scale knob to make the amplitude of two signals being roughly equivalent.

5.6 Press DISPLAY menu key to pop out display controlmenu.

5.7 Press F1 to select X-Y,and the oscilloscope shall display input and output characteristics of the circuit in the mode of Lissa jous.

5.8 Regulate vertical scale and vertical position knob to make waveform of best effect.

5.9 Measure and calculate the phase difference by elliptic oscillogram.

The level of the signal must be centered

Diagram 3-8 Signal have to be centered horizontally.


According to sinθ=A/B or C/D,of which θis the phase

Example 6: vedio signal trigger

difference angle and definitions of A、B、C、D are

Observe some vedio circuit and apply vedio trigger referred to the above picture so phase difference to obtain stable frequency output signal display.

angleθ=±arcsin(A/B)orθ=±arcsin(C/D).If main axis

Vedio vertical trigger of elliptic is within I、III quadrants,the phase

Please operate under the following steps if want to difference angle shall be in the I、IV quadrants, trigger at the vedio vertical trigger: namely(0～π/2)or(3π/2～2π)and if main axis of

6.1 Press key MENU in the trigger control area to elliptic is within II、IV quadrants, the phase difference display trigger menu.

angle shall be in the II、III quadrants, namely (π/2～

6.2 Press F1 and use knob MULTIPURPOSEto

π)or(π～3π/2),and if frequency or phase select the trigger type as vedio.

deffectence angle of the two signals being detected

6.3 Press key F2 and use knob MULTIPURPOSEto are integral multiples ,frequency and phase select trigger CH1 as the trigger source.

relationship could be calculated by the diagram.

6.4 Press key F5 to enter into vedio setting and

5.10 X-Y Phase Difference Diagram press to select PALas the vedio system.

Phase location difference

6.5 Press key to select odd vertical or even vertical

Frequency ratio of signal

0 ° 45 ° 90 °

180

° 270 ° 360 ° as the synchronous.

6.6 Clear waveform display shall be obtained by using time base gear knob in application horizontal area to regulate horizontal time base.

69


PALto select as the vedio system.

5. Press key F2 and use knob MULTIPURPOSE to select designated horizontal as the synchronous.

6. Use knob MULTIPURPOSE to set any horizontal.

7. Clear waveform display shall be obtained by using time base gear knob in application horizontal area to regulate horizontal time base.

70

Piture 3-10 Vedio Vertical Trigger

Vedio horizontal trigger

Please operate under the next steps if you want to trigger at the vedio vertical.

1. Press key MENU in the trigger control area to display trigger menu

2. Press key F1 and the knob MULTIPURPOSEto select vedio as the trigger type.

3. Press key F2 and use knob MULTIPURPOSE to select CH1 as the trigger source.

4. Press key F5 to enter into vedio setting and press

Diagram 3-33 Vedio Hotizontal Trigger


Example 7 Store data into USB flash disks.

Needed to work in a faraway place to use oscilloscope to observe waveforms and hope to bring information back to office to complete reports and make other analysis, the USB flash disk shall be used to store the data.

Store screen pictures

Two methods are provided for storing pictures displayed on oscilloscope screen into USB:

1.Please operate under the next steps if you want to store pictures fastly into USB:

1.1 Plug USB into the USB-HOST port of oscilloscope front board.

1.2 Press key PrScrn on the top part of screen to display the storage progress bar below the waveform display area,after storage,the screen picture shall be stored into usb root catalogues with the name of

DSO***.BMP.

2.In order to recognize the stored pictures and images easily and to set descriptive names for each picture, please operate under the next steps:

2.1. Plug USB into the USB-HOST port of oscilloscope front board.

2.2. Press key STORAGE and F1 to select bitmap with the knob MULTIPURPOSE.

2.3. Press confirmation key F3 in the bitmap storage menu to enter into USB menu.

2.4. Press key F1 and use knob MULTIPURPOSE to store the file name and press key F5 to confirm and the screen pictures shall be stored in the USB root catalogues with the set name.

71

72

Picture 3-12 store bitmap into the USB

Store setting data of the machine

Please operate under the next steps to store the detected waveform data into the USB.

1. Plug USB into the USB-HOST port of oscilloscope front board.

2. Press key STORAGE and F1 to select setting with the knob MULTIPURPOSE.

3. Press key F5 in the waveform storage menu to enter into USB menu.


4. Press key F1 and use knob MULTIPURPOSE to store the file name and press key F5 to confirm and the screen pictures shall be stored in the USB root catalogues with the set name.


Example 8 Pass test

Detect if input signal is within the stipulated scope and if exceeds the scope it Fail or Pass and the

Pass/Fail signal shall be ouput via the Pass/Fail output port on the back of oscilloscope.

1. Press key UTILITY and F3 to enter into the test menu.

2. Set information source:enter into P/F TEST(pass test)menu and press F3 to set information source.

3. Template setting: press F5 to enter the next page and press F3 to enter into template setting.Press F1 and select reference waveform with knob

MULTIPURPOSE and press F3 and F4 and to set horizontal and vertical peak margin (horizontal:1-

100Pixel,vertical:1-100Pixel) then press F5 to set storage template and back to Pass/Fail menu.

4. Set input condition: press F5 back to the first page of Pass/Fail menu and press F2 to set Pass/Fail port on the back of oscilloscope and the output judgement conditions of the buzzer.

Start testing: in the Pass/Fail menu,press F1 to open test status as shown in 3-13.

5. Press F4 to set the display of information about the judgement results.

6.Press F5 to enter into the second page of test menu, and press F2 to enter into stop setting menu: press F1, F2 key to set stop types and stop conditions, and set the threshold value with knob MULTIPURPOSE and after that to press

F5 to back to test menu as shown in 3-14.

7. Press F1 to start passing test and press F1 when start it and stop it with manual operation.

Notes: Pass/fail statistics shall be calculated again after each stop as shown in 3- 15.

Pass test diagram

73

diagram 3-13

74 diagram 3-14 diagram 3-15



Chapter Ⅳ System Tips and

Trouble Shooting

Instruction about the system tips

Regulation reaches the limit: in present status, the regulation of multipurpose knob has reached the limit and cannot be regulated anymore.

USB equipment installed successfully: when

USB plugging into digital storage oscilloscope and connect with it successfully and the screen shall display the tips.

USB equipment has been removed: when USB has been removed from the digital oscilloscope and the screen shall display the tips.

I/O operation fails: U-disk communication fails or the files reached requirements could not be found in the U-disk.

Trouble shooting

1. If the power switch is on, and after start the soft switching,the digital storage oscilloscope is still black screen without any indication,please follow the next steps:

1.1 Check if the power switch is connected and the power supply is normal.

1.2 Check if power switch is open and after opening, the front board soft switching shall be right light and there shall be normal relay sound when it starts after press down the soft switching.

1.3 If there is normal relay sound, it indicates that the oscilloscope starts normally.

1.4 The above steps are completed and restart the oscilloscope.

1.5 If you can not use the product normally, please contact with UNI-T and we will provide you service.

2. When signals were collected and waveform of the signal has not been displayed in the picture, please address under the next steps:

75


76

2.1 Check if the probe is connected with the signal connection wires.

2.2 Check if the signal connection wires are connected with BNC (channel connector).

2.3 Check if the probe is connected with the object being detected.

2.4 Check if there are signal in the object being used for the normal signal. Only the trigger mode is set correctly shall the waveform be displayed steadily.

4.3 Try to change the coupling into the high frequency restriction and low frequency restriction display and to filter high frequency or low frequency noise of the interference trigger.

detected (to find the problem by combining the channel appeared signal with the channel with problem)

2.5 Recollect signal once.

3. Voltage amplitude value being measured is 10

5. Press key RUN/STOP but without any display:

5.1 Checke if trigger mode of the trigger menu is in normal or single gear and if the trigger level exceeds the wave form scope.

If it were, please put the trigger level centering or set times bigger or smaller than the real value: check if trigger mode as AUTO gear.

channel attenuation coefficiency is in accord with 5.2 Press AUTO key to complete the above setting the used probe attenuation times.

4. Present waveform display which can not be stable:

4.1 Check if trigger setting of the trigger menu is in accord with the input channel by real signal.

4.2 Check trigger types: edge trigger type shoud be automatically.

6. The display speed becomes slowly after selected to open the average sampling mode time:

6.1 It is normal that the speed would slow down when the average frequency is more than 32.

6.2 Reduce the average frequency.


7. Waveform displays the form of staircase.

7.1 It is normal that maybe the horizontal time base gear is quite low and try to increase the horizontal time base to improve horizontal resolution. The display could be improved.

7.2 Maybe the display type is vector and the lines between sampling points results in staircase form display of the waveform. It shall be resolved by setting display type as the point display mode.

Chapter Ⅴ Service and Support

Section 1: Product program upgradation

Acquired the program upgradation package by two ways: from UNI-T company market department or via company website, the user can upgrade program of the present oscilloscope by the embedded program upgradation system in the oscilloscope to make sure that program of the present oscilloscope is the newly published program version of UNI-T company.

Preparations before upgradation:

1. Own an oscilloscope and acquire and record the type, hardware and software vision information of the present oscilloscope through the system information menu box under the UTILITY menu.

2. To acquire from UNI-T company market department or via company website the program upgradation package that type and hardware

77

78

UTD2000M User Ma nual upgraded and software version is bigger than that of the present oscilloscope.

3. To prepare a U-disk(with the format being FAT or

FAT32)and store the acquired program upgradation package that uncompressed into the root catalogue of the U-disk with the suffix:uts.

Program upgradation conditions:

1. Product type of the program upgradation package shall be in accord with that of the oscilloscope being upgraded.

2. Hardware version of the program upgradation package shall be in accord with that of the oscilloscope being upgraded.

Program upgradation

1. Turn off the oscilloscope and plug U-disk copied with program upgradation documents into the USB

HOST port of oscilloscope.

2. Connect power and start the oscilloscope and it shall enter into automatically the welcome interface

3.Software version of the program upgradation package shall be bigger than or equal to that of the present oscilloscope.

4. FLASH type of the program upgradation package shall be in accord with that of the oscilloscope being

Picture 6-1

3. User can upgrade it under the instruction of the upgradation interface.

upgraded.


4. It shall display OK when the program upgradation process reaches 100% and it means program upgradation have been completed as the indication process Success! Pull out U-disk and restart oscilloscope.

Notes:

1. When upgradating, please do not power off to guard against the unknown mistakes.

2. The oscilloscope shall be initialized when restart the oscilloscope after updated the program and enter into the operation interface after waiting for 30 s-1m.

Picture 6 2

79

80


Chapter Ⅵ Appendix

Appendix A Functional Index

Unless otherwise stated, all technic specifications shall apply to probe with attenuation switch being set 10×and UTD2000M series of digital oscilloscope. Digital oscilloscope reaches those specifications and standards only if meet the following two conditions:

■ The instrument shall be in continuous operation more than 30 minutes under the stipulate operation temperature.

■ If the operation temperature shift reaches to or over 5 degrees, the system function menu shall be opened to implement the Automatic Adjustment procedure and except the specification labeled with word Typica, all specifications shall be guaranteed.

Technical index

Sampling mode

Sampling mode

Real-time sampling

Sampling rate

Average value

Equivalence sampling

Single channel 1GS/s; double channel simultaneously 500MS/s

50GS/s

All channels reach N times of sampling and N should be chosen among 2、4、

8、16、32、64、128、256 and 512.

Input

Input coupling AC、DC、GND

Input impedance parallel connection between

1 ±2%ΜΩ ，and 24±3pF

Probe attenuation coefficiency setting

1 × , 10 × , 100 × , 1000 ×

Maximum input voltage

Time delay in channel (typical)

400V(DC＋AC peak value、input impedance 1MΩ）

50ps


Horizontal

Waveform Interpolation

Storage depth

Waveform capturing rate

Sampling rate and delay time

Time interval ( △ T) measure accuracy (full bandwidth) sin( x) / x

UTD2000CM Single channel: normal 6 kpts, depth 16Mpts

Double channel: normal 6kpts,depth 8Mpts

UTD2000HM Single channel: normal 6 kpts, depth 8Mpts

Double channel: normal 6kpts,depth 4Mpts

≥150000wfms/s

2ns/div～50s/div under 1-2-5 system

±50ppm (any time interval ≥1ms)

Single: ± (1 sampling time interval + 50 ppm×reading + 0 6

﹥16 average value:±(1 sampling time interval + 50 ppm× reading+ .

ns）

81


Vertical

Types

UTD2202CM UTD2152CM

UTD2102HM

UTD2102CM

Analogdigital converter(A/D) 8 bit resolution

Deflection scale coefficiency

(V/div)scope(V/div)

2mV/div～10V/div(at the input BNC port)

Shift scope

Analog bandwidth

Single bandwidth

Analogbandwidth restrictions

for choice(typical)

±8div

200MHz

100MHz

20MHz

150MHz

100MHz

100MHz

100MHz

UTD2082HM UTD2062HM

UTD2082CM UTD2062CM

80MHz

80MHz

60MHz

60MHz

UTD2042HM

UTD2042CM

40MHz

40MHz

Low Frequency response(AC

value sampling mode,- dB ）

≤10Hz(above BNC)

Rise time

DC current gain accuracy

1.8ns

2.3ns

3.5ns

4.3ns

5.8ns

8.7ns

Vertical sensitivity is mV/div: ± 4%(sampling or average value sampling mode);

Vertical sensitivity is 10mV/div～10V/div:±3%(sampling or average value sampling mode)

DC measuring accuracy

(averagevalue sampling

mode)

Voltage defference(△V)

measuring accuracy(average

82

sampling mode）

Vertical shft is zero and N

+

≥ 16: ± ( 5% × reading + .

grid + 1 mV) and select 2mV/div

± (3% × not zero reading)

5V/div

]+ 0 .

2div ) set from 5mV/div to 200mV/div + 2mV ; set value >

+ 50mV.

+ 1 mV) and select 5mV/div ～ 5V/div.Vertical shft is

, N ≥ 16: ±[ 3% × (reading + vertical shift reading) +( 5% × vertical shift

200 mV / div to

;

Under the same setting and environmental conditions and gain the average of the captured waveform,≥16 voltage difference between any two points (ΔV):±(3 %× reading+ 0.05

div)


Trigger

Internal trigger ≤1div

Trigger sensitivity

Trigger level scope internal

EXT

Trigger level accuracytrigger level accuracy(typical)and to select rising and falling time≥20ns

EXT/5 external

EXT

EXT/5

Pretrigger ability

To the screen center ±8div

±800mV

±4.0V

±

±

(6%

(6% setting value＋40mV) setting value＋200mV)

Normal mode/scanning mode,pretrigger mode/delay trigger,pretrigger depth adjustable

Load-off scope

Set level to 50%( typical)

Edge trigger

Edge types

Pulse width trigger

Trigger mode

Pulse width scope

100ns～1.5s

Operate under the condition of input signal frequency≥50Hz

Rising edge, falling edge rise &

﹥,﹤,﹦positive pulse width,﹥,﹤,﹦negative pulse width

20ns～10s fall

83

84


Vedio trigger

Trigger sensitivity

(vedio trigger, typical)

Signal systemand horizontal/ vertical frequency(vedio trigger types)

Slope trigger

Trigger mode

Time setting

Trigger accuracy

Trigger frequency meter

Reading resolution accuracy

Frequency scope

Trigger types internal 2div

EXT

EXT/5

400mV

2.0v

Support standard NTSC and PAL,Scope horizontally 1-525(NTSC) and1-625(PAL)

﹥,﹤,﹦positive slope, ﹥,﹤,﹦ negative slope

20ns-10s

≤3%

6 bit

±51ppm

When AC coupling,from10Hzto full bandwidth

Pulse width or edge


Measurement

Manual mode cursor

Tracking mode

Automatic Measuring mode

Automatic measurement.

Mathematic operation

Store oscilloscope

FFT

Lissajous diagram

Voltage difference between cursors(ΔV),time difference between cursors(ΔT),reciprocal of ΔT(Hz)(1/ΔT)

Voltage value and time value of the Waveform point.

Allowable to dispalycursor in automatic measurement.

Maximum value,minimum value,top value,bottom value,medium value, peak peak value, amplitude value,average value,mean square root value,period average value,period mean square root value,area,period area,frequency,period,rising edge,falling edge,positive

pulse width, negativepulse width,accidental pulse width,overshoot impulse,preshoot,+duty,

-duty,delay (advanced measurement) and phase (advance measurement)

Add,minus,times,divide and opposite phase

10 groups of waveforms、10 types of settings

Window Hanning,Hamming,Biackman-Harris,Rectangular

Sampling points 1024 points

Band width

Phase difference

100MHz

±3 degrees　 dispaly

Display types

Display resolution

(display)

Display color

Waveform displaying

Diagonal 178(

800 horizontal pixel×RGB×480vertical pixel

64Kcolor mm inch)TFT LED

12grids,each50 dots;vertical 8 grids,each 50 dots

85


.

Probe compensator output

Output voltage (typical) About 3Vp-p,load ≥1MΩ frequency (typical) 1kHz

Port function

Standard configuration

Select fittings

1 USB (D)\1 USB (H)\Pass/Fail

LAN\GPIB\RS232

Power

Power voltage

Electricity consumption

Fuse

100～240VACrms,45～440Hz

No more than 40VA

F1.6AL 250V on the power panel in the machine

Environment

Temperature

Cooling method

Humidity

86

Height

Operate：0℃ ～+ 40℃

Non operate： 20℃ ～+ 60℃

Forced cooling by fan

< 35℃: ≤9 %

+35℃～+40℃:≤60%RH

Operate：under 3，000m

Non operate:under 15,000m

Mechanical specification

Width

Size

Weight

(net weigh)

Height

Depth

Exclusive of package

Inclusive of package

330mm

155mm

130mm

2.9kg

5 .0

kg

IP protection

Regulate

Be recommended to regulate


Appendix B: Accessory of UTD2000M

series of oscilloscope

● Two l.2m 1:1(10:1)Passive Probe,details refered to the probe accessory instruction,meeting the standard EN61010-031:2008

● When the switch is at the position 1×, it is 150V

CAT Ⅱ

● When at the position 10×,it is 300V CAT Ⅱ

● Apower wire complying with the standard of the country

● A Users'Manual

● A Product Warranty

● Communication control software (USB-DEVICE) of the UTD2000M series of oscilloscope

Accessory for purchase

● UTD2000M LAN module:UT-M01

Please place order to the local UNI-Tdistributor for the accessory (standard parts and accessory for purchase)

Appendix C: maintenance and keep clean

General maintenance

Please do not store or put the instrument on the place where the monitor would be exposed to sunshine for a long time. Be careful: keep the instrument or probe away from the sprays, fluids and solvents to guard against damage to the instrument or probe.

Clean

Check the instrument and probe usually in accordance with the operation status and clean the instrument surface under the following steps:

1. Please wipe dust on the instrument and probe with the soft cloth and do not scrap the transparent LCD protection screen.

2. Please power off when clean the instrument with the wet cloth without dripping.The soft detergent or clean water could be used to clean the instrument instead of any corrosive chemical detergent which might damage the instrument or probe.

87

88

Warning:before using the instrument after being

powered on again,please confirm that the

instrument has been dry to guard against the electric short circuit or even the personal hurt caused by the water.

Appendix D: Factory Setting

The appendix shall introduce to you the changes of relevant settings when you press the key UTILITY -

Ex-factory setting, please refer to the next table:

System

Vertical

System

Function

CH1

CH2

Coupling mode

Bandwidth Restriction

VOLTS/DIV

Probe

Opposite Phase

Bias voltage

MATH、REF

Factory setting

5V/div

5V/div

AC 1MΩ full bandwidth

Coarse tuning

1× off off off


System

Horizontal

System

Trigger system

Show

Other system

Function

Horizontal time base

Horizontal shift

Load-off time

Trigger type

Information source

Coupling mode

Trigger mode

Slope types

Display types format

Afterglow

Waveform brightness

Storage type

Frequency meter

Measurement

Cursor

Contrast

Language

Interface style

menu indication

Grid brightness

Factory setting

500 μ s/div

Horizontal midpoint

Minimum 100.0000ns

Edge

CH1

DC

Automatic

Rising

YT

Vector

Automatic

88%

Setting

On

Off and delete all measurements

Off

50/100

Keeping

Classic

Manual

32/32

UTD2000M User Ma nual UTD2000M User Ma nual

This user manual may be revised without prior notice.

89

90

Address:

Rm 901, 9/F, Nanyang Plaza, 57 Hung To Road,

Kwun Tong, Kowloon, Hong Kong

Phone:(852) 2950 9168

Fax:(852) 2950 9303

Email:[email protected]

Website:www.uni-trend.com

Manufacturer: UNI-T Technology (Chengdu) Co., Ltd

Add:

2F, Building D2, No.199, West District Avenue, West

High-tech

District, Chengdu City, Sichuan Province, P.R.China


本产品依照CE安全标准设计

Preface

Copyright Information

General safety overview

Signals on the product: the following signals might be on the product.

Preface

UT D2 000M Us er Ma nual

Contents

Chapter Ⅰ User' s Guide

Initial setting

General check

Probe compensation

Operate the self-tuning program

Automatic setting for the waveform

display

Regulate time and date of the oscilloscope

Initial knowledge about the operation board of the oscilloscope

Initial knowledge about the vertical system

Initial knowledge about the horizontal system

Initial knowledge about the trigger system

Chapter Ⅱ Instrument Setting

Waveform brightness setting

Set the vertical system

Perform the mathematic operation function

Set horizontal system

Setting trigger system

Set sampling system

Set display system

Set storage system

Automatic measuring

Cursor Measurement

Auxiliary Function Setting

Automatic Setting

Chapte Ⅲ application examples

Example 1: measuring simple signal

Example 2: Capture single signal

Example 3: Reduce random noise of the

sinal

Example 4: Application of cursor measurement

Example 5: application of X－Y function

Example 6: vedio signal trigger

Example 7 Store data into USB flash disks.

Example 8 Pass test

Chapter Ⅳ System Tips and

Trouble Shooting

Instruction about the system tips

Trouble shooting

Chapter Ⅴ Service and Support

Section 1: Product program upgradation

Chapter Ⅵ Appendix

Appendix A Functional Index

Appendix B: Accessory of UTD2000M

series of oscilloscope

Appendix C: maintenance and keep clean

Key Features

Frequently Answers and Questions

How do I compensate the probe for accurate measurements?

What are the different trigger modes available?

How do I store waveforms and settings to a USB flash disk?

Related manuals

UNI-T

UPO2000E Series

Tenma

72-9360

UNI-T

UPO1000CS Series

UNI-T

UPO1000CS Series

UNI-T

UTD1102C

Tenma

DSO 72-8710

UNI-T

UTG2000B Series

UNI-T

UT4000 UT4302C

UNI-T

UTD4000

UNI-T

UTD4000 UTD4104C