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UNI-T UTD2000M, Руководство по эксплуатации

"UNI-T UTD2000M" - это передовой осциллограф с превосходным качеством и функциональностью. Операционное руководство доступно для скачивания бесплатно на manualshive.com. Загрузите свой экземпляр сейчас, чтобы полностью овладеть всеми возможностями этого удивительного прибора.

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UTD2000M

 

User

 

Manual

     

 

 
 
 

size

 

and

 

shape

 

of

 

XY

 

graphic

 

can

 

be

 

adjusted

 

via

 

“SCALE”

 

knob

 

for

 

both

 

channels.

 

Changing

 

time

 

base

 

can

 

acquire

 

a

 

Lissajous

 

pattern

 

with

 

good

 

displaying

 

effect.

                   

With

 

its

 

unique

 

X

‐

Y

 

display

 

mode,

 

it

 

can

 

display

 

waveform

 

in

 

a

 

channel

 

and

 

X

‐

Y

 

Lissajous

 

pattern

 

simultaneously.

 

In

 

addition,

 

this

 

series

 

of

 

units

 

also

 

have

 

following

 

functions,

 

for

 

example,

   

„

 

Auto

 

Measuring

 

Function

 

„

 

Cursor

 

Measuring

 

Function

 

„

 

Reference

 

or

 

Mathematical

 

Function

 

Following

 

Functions

 

are

 

not

 

Effective

 

under

 

X

‐

Y

 

Mode

           

„

 

Window

 

Expansion

 

Function

   

„

 

Horizontal

 

“POSITION”

 

knob

 

Key

 

Points

 

Display

 

Format

:

 

“Vector

 

Display”

 

will

 

fill

 

in

 

the

 

blank

 

area

 

between

 

proximal

 

sampling

 

points,

 

while

 

“Point

 

Display”

 

only

 

displays

 

sampling

 

points.

       

Waveform

 

Capture

 

Rate:

 

waveform

 

capture

 

rate

 

refers

 

to

 

the

 

waveform

 

refreshing

 

times

 

per

 

second

 

and

 

it

 

impacts

 

the

 

unit’s

 

capability

 

to

 

display

 

the

 

dynamic

 

change

 

of

 

signal

 

rapidly.

             

 

2.7

   

Storage

 

System

 

Settings

       

As

 

shown

 

below,

 

STORAGE

 

key

 

located

 

in

 

the

 

control

 

area

 

is

 

the

 

function

 

menu

 

for

 

storage

 

system.

 

 

Fig.

 

2

‐

33

 

Storage

 

System

 

Menu

 

Key

 

Press

 

STORAGE

 

key

 

to

 

display

 

storage

 

system

 

settings

 

where

 

it

 

allows

 

you

 

to

 

save

 

a

 

waveform

 

shown

 

on

 

the

 

oscilloscope

 

or

 

the

 

unit’s

 

settings

 

into

 

the

 

internal

 

storage

 

or

 

U

‐

disk,

 

and

 

reload

 

the

 

saved

 

waveform

 

from

 

“REF

 

A”

 

or

 

“REF

 

B”

 

submenu

 

or

 

reload

 

the

 

saved

 

settings

 

from

 

certain

 

submenu.

 

After

 

U

 

Disk

 

is

 

inserted,

 

waveform

 

displaying

 

area

 

can

 

then

 

be

 

saved

 

into

 

the

 

U

‐

disk

 

in

 

the

 

format

 

of

 

bitmap.

                         

 

Operation

 

Steps:

 

Press

 

STORAGE

 

key

 

to

 

enter

 

into

 

“submenu”,

 

including

 

reference

 

waveform,

 

settings

 

and

 

bitmap.

             

1

、

 

Select

 

“Reference

 

Waveform”

 

submenu

 

to

 

enter

 

into

 

“Reference

 

Waveform

 

Storage

 

Menu”

 

shown

 

below,

 

See

 

Table

 

2

‐

16;

 

After

 

the

 

reference

 

waveform

 

is

 

saved,

 

reload

 

the

 

same

 

using

 

“REF”

 

key

 

(reference

 

waveform,

 

page

 

XX).

 

See

 

REF

‐

operation

 

steps

 

for

 

details.

               

Table

 

2

‐

16

   

Reference

 

Waveform

 

Storage

 

Menu

     

Menu

 

Setting

 

Description

       

Type

 

Reference

 

waveform

 

Select

 

the

 

waveform

 

being

 

displayed

 

for

 

signal

 

source

           

Signal

 

Source

 

CH1

 

CH2

 

Set

 

that

 

the

 

waveform

 

is

 

from

 

CH1

 

Set

 

that

 

the

 

waveform

 

is

 

from

 

CH2

 

Save

 

1

～

10

 

 

Save

 

the

 

reference

 

waveform

 

into

 

internal

 

storage

 

of

 

the

 

unit.

 

Select

 

storage

 

location

 

using

 

“MULTIPURPOSE”

 

knob

 

48

Содержание UTD2000M

Страница 1: ...UTD2000CM User Manual ...

Страница 2: ...perate this instrument correctly please read this Manual especially its Safety Information carefully before use In case you have read it it is recommended that you keep this manual properly along with the instrument or place it in another accessible location for possible future use 1 ...

Страница 3: ...rves its right to change product specification or product price All rights reserved by UNI T The licensed software products that are owned by UNI T or its subsidiary companies or specific providers are being protected by the State Copyright Law or International Treaties The information contained in this Manual shall substitute all the corresponding information on materials published previously UNI...

Страница 4: ...aging the defective product and delivers it to a maintenance center assigned by UNI T with freight prepaid and provision of the duplicate of the original Certificate of Purchase owned by the original purchaser If the product is to be delivered to a place within the boundary of the country where our maintenance center is located UNI T shall pay the cost incurred in returning the product to the user...

Страница 5: ... all other warranties express or implied including but not limited to any implied warranty of merchantability or fitness for a particular purpose UNI T or its authorized distributor shall not be liable for any special indirect incidental or consequential damages or losses regardless of whether or not they have been notified of such possibilities 4 ...

Страница 6: ...round through grounding wire of the power To avoid electrical shock the grounding wire must actually connect to the ground Ensure the unit is correctly grounded before connecting the input or output of this unit Correct connection of the probes of the unit the ground wire of the probe has the same earth potential as that of earth wire so please do not connect it to high voltage Check the ratings o...

Страница 7: ...at may cause damage to the product or other properties Terms on the product Following terms may show on the product DANGER indicates you are exposed to a potential hazard that may bring immediate damage to you as you read the marking WARNING indicates you are exposed to a potential hazard that may not bring immediate damage to you as you read the marking CAUTION indicates any damage that may happe...

Страница 8: ...s functions and provide installation guide Chapter 2 Settings Introduce the operation of this unit Chapter 3 Application examples Provide examples on how to meet various measuring needs Chapter 4 System Message and Troubleshooting Chapter 5 Service Support Chapter 6 Appendix Appendix A Technical Indexes Appendix B Accessories Appendix C Servicing Maintenance Appendix D Words on Keypads Shown in Co...

Страница 9: ...ventional instrument users Users can operate proficiently without the need to spend much time to learn and get familiar with its operation To speed up the adjustment for the ease of measurement the instrument will display suitable waveform and range once the users press AUTO key directly Aside from easy to use UTD 2000CM Series Digital Storage Oscilloscopes has the high performance indexes and str...

Страница 10: ... and reproduction of waveform and settings Built in 6 digit hardware frequency meter Embedded FFT and digital filtering Mathematical function for multiple waveforms including plus minus times and divide Unique Auto settings which can be used in accordance with your needs Unique keypad lock allows you to disable the function of certain keys or knobs OSD in multiple languages Independent time base f...

Страница 11: ...al System Settings 21 2 2 1 Channel Coupling Settings 22 2 2 2 Channel s Bandwidth Limit Setting 24 2 2 3 Probe Amplification Factor Setting 24 2 2 4 Vertical Scale Coefficient Volts Grids Settings 26 2 2 5 Phase Reversed Waveform Setting 26 2 2 6 Bias Voltage Setting 27 2 2 7 Realization of Mathematical Function 28 2 2 8 Reference Waveform 32 2 3 Horizontal System Settings 32 2 4 Trigger System S...

Страница 12: ...plication of Cursor Measurement 68 3 5 The Application of X Y Function 70 3 6 Example of Video Triggering 71 3 7 Example of Less Amplitude Pulse Trigger 72 3 8 Use of Storage Function 74 3 9 Pass Fail Detection 76 3 10 Use Updating Software Contained In a U disk 78 Chapter 4 System Message Troubleshooting 79 4 1 Explanation on System Messages 79 4 2 Troubleshooting 79 Chapter 5 Service Support 81 ...

Страница 13: ...n hand first you need to understand its front panel This chapter provides brief description and introduction of the operation and functions of the front panel of UTD2000CM series instruments so that you may get familiar with the operation of UTD2000CM Series Digital Storage Oscilloscope UTD2000CM offers simple and functionally clear front panel to users for their basic operations Knobs with simila...

Страница 14: ... use the menu system please follow the following steps 1 Press a menu key to display the menu to be used 2 Press F1 to F5 located to the right of the screen to select a menu item If the menu item contains multiple submenus then again press F1 to F5 to make a selection 3 Some menu items require numeric entry or making multiple choices to complete the setting in this case a 13 ...

Страница 15: ...al operation of this unit rapidly how to compensate the passive probe using built in compensating signal how to run the compensation program for signal path self correcting so as to obtain maximized signal accuracy and how to set time and date All initial setup procedures should be performed when this unit is used for the first time Probe compensating adjustment should be done when the probe is co...

Страница 16: ... for the first time so that they can be matched with the input channel Probes that have not undergone such compensating correction may result in measurement error or wrong measurement In case you need to adjust the probe compensation please follow the following steps 1 Set the attenuation coefficient in probe menu to 10 and turn the switch on the probe to 10 and then connect the probes to channel ...

Страница 17: ...ake several minutes to complete this process 1 6 Auto Setup for Waveform Display This instrument has auto setup function that can auto adjust the vertical scale coefficient time base and trigger mode in accordance with the input signal until the most appropriate waveform has been displayed It requires the frequency of the signal under test to be no less than 40Hz and the duty ratio to be more than...

Страница 18: ...an know the vertical range change from the information shown in the status bar located at the lower part of the waveform window Turn the vertical SCALE knob to change the coefficient of vertical scale VOLTS DIV and you may notice from the status bar the corresponding change of vertical scale coefficient shown for each channel If press CH1 CH2 REF MATH key one after another the screen will display ...

Страница 19: ...rizontal POSITION knob is being turned waveform can be observed moving in horizontal direction Press down the horizontal POSITION knob to return the trigger point to horizontal median 3 Press MENU key to display Zoom menu Under this menu press F3 to open expanded window then press F1 to shut off the expanded window and return to main window Under this menu MULTI PURPOSE knob can also be turned to ...

Страница 20: ...set slope type as ascend 3 Press SINGLE to generate trigger only for once 4 Press FORCE key Force to generate a trigger signal which is mainly applied in Normal and Single trigger modes 注 Notes Mark the auxiliary function of shift knob press down to return to median swiftly Mark the auxiliary function of trigger level knob press down to return to vertical earth level swiftly which is the zero trig...

Страница 21: ...ect waveform brightness setting menu then change waveform brightness using MULTIPURPOSE knob Figure 2 1 Waveform Brightness Settings In comparison to an ordinary digital oscilloscope UTD2000CM series digital storage oscilloscopes allow us to do waveform brightness setting When the instrument is in its maximum brightness all waveforms are shown in maximum brightness A change in brightness can be se...

Страница 22: ...idth to 20MHz so as to reduce the displayed noise Full bandwidth Phase Reversed On Off Turn on the reversed waveform function Normal display of waveforms Volts Grids Rough Fine Follow 1 2 5 stepping to set vertical deflection factor during rough tuning Further division within the scope of rough tuning can be done in fine tuning so as to improve vertical resolution 2 2 1 Channel Coupling Settings T...

Страница 23: ...the AC and DC Components in a Signal have been Displayed Simultaneously Press F1 and then press F3 to select grounding as the channel coupling mode Thus both AC and DC components contained in the signal under test are blocked Waveform display is shown as below Under this mode though no waveform is being displayed on the screen the input signal still maintains connection with the channel circuit Fi...

Страница 24: ...eform being displayed is shown below Fig 2 5 Waveform Displayed at Full Bandwidth Press F2 and then set the current bandwidth as 20MHz by turning the MULTIPURPOSE knob then the noise and high frequency component that are higher than 20MHz will be restricted Waveform being displayed is shown below Fig 2 6 Waveform Displayed at a Limited Bandwidth 2 2 3 Probe Amplification Factor Setting This settin...

Страница 25: ...cient Setting in Channel Menu Apart from setting a predefined amplification factor of 1 10 100 and 1000 it also allows users to set desired coefficients that suit to specific applications Normally the probes of oscilloscope are voltage probes However this instrument also allows us to set probes as current ones in order to meet different measurement needs Detailed settings are shown below Fig 2 8 U...

Страница 26: ...nt vertical range is being changed under an even smaller stepping hence to realize the uninterrupted and constant adjusting of vertical scale coefficient within the scope of 2mV div 10V div Fig 2 9 Rough and Fine Tunings of Vertical Deflection Factor 2 2 5 Phase Reversed Waveform Setting Reversed waveform signal displaying phase turns 180 Refer to Fig 2 10 for a waveform that has not been reversed...

Страница 27: ...ent in that signal as shown in Fig 2012 Fig 2 12 Signal Containing DC Component Then we can use bias voltage function to offset the DC component in a signal so that the signal can be displayed better on the screen Once we enter into the functional menu of bias voltage we can set bias voltage by turning MULTIPURPOSE knob As shown in Fig 2 13 we can calculate the DC component of a signal with the us...

Страница 28: ... CH2 as well as displaying the waveform after using FFT or digital filtering The menus are shown below Fig 2 14 Mathematical Calculations Table 2 2 Explanation on Mathematical Calculation Menu Menu Setting Description Type Math For adding deducting multiplying or dividing Operand 1 CH1 CH2 Set operand 1 as the waveform in CH1 Set operand 1 as the waveform in CH2 Operator Operator 1 Operator 2 Oper...

Страница 29: ...ve the following types of signal conveniently with the use of FFT Harmonic content and distortion in measuring system Express noise characteristic in DC power Analyzing vibration Fundamental component 1kHz Fig 2 15 FFT Spectrums Table 2 3 FFT Menu Menu Setting Description Type FFT FFT mathematical calculation Signal Source CH1 CH2 Set CH1 as the computing waveform Set CH2 as the computing waveform...

Страница 30: ...ency resolution and worst amplitude resolution Basically similar to the condition without window Transient state or short pulse and the signal level remains more or less the same before and after this Constant amplitude sinusoid with extremely close frequency has wide bandwidth random noise that has relatively slow changing spectrum Hanning Hamming In comparison to rectangle window it has relative...

Страница 31: ...g or band pass filtering use MULTIPURPOSE knob to set lower limit of frequency Frequency upper limit Only effective during low pass filtering or band pass filtering use MULTIPURPOSE knob to set lower limit of frequency Definition FFT Resolution it is defined as the quotient of a division between sampling rate and operating points In case of a fixed operating points the lower the sampling rate the ...

Страница 32: ...xists Table 2 6 REF Menu Menu Setting Description Reference Waveform REF A REF B Set the reference waveform as REF A Set the reference waveform as REF B load Load 10 storage positions from the unit and use MULTIPURPOSE knob to select one stored waveform from those 10 positions and press MULTIPURPOSE knob to confirm import When U Disk has been inserted No insertion of U Disk Press F5 key to pop out...

Страница 33: ...ned the window width can be changed by turning horizontal scale knob to change delayed scan time base Two horizontal control knobs SCALE knob for changing horizontal time base scale POSITION knob Horizontal shift for changing the relative position of trigger point on screen Horizontal Control Key MENU To display horizontal menu See Table below Table 2 7 Horizontal Menu Description Menu Setting Des...

Страница 34: ...veforms When the digital storage oscilloscope begins to collect data it first collects enough data to draw a waveform at the left side of the trigger point While the instrument is waiting for the occurrence of a triggering condition it is also collecting data consecutively When a trigger condition is detected the instrument will collect sufficient data consecutively so as to draw a waveform at the...

Страница 35: ...ring Edge triggering refers to a trigger that occurs at the edge of an input signal namely the trigger threshold value When edge triggering is selected it means the trigger occurs at the rising edge and falling edge of an input signal Table 2 8 Edge Triggering Menu Setting Description Type Edge Signal Source CH1 CH2 EXT EXT 5 AC LINE Alter Set CH1 or CH2 as the source of trigging signal Set extern...

Страница 36: ...rce of trigger Trigger Coupling DC AC Low Frequency Reject High Frequency Reject Pass both the AC and DC component in an input signal Block the DC component in an input signal Reject the low frequency component less than 80KHz contained in a signal Reject the high frequency component higher than 80KHz contained in a signal Triggering Mode Auto Normal Single When there is no input of trigger signal...

Страница 37: ...deo Triggering Menu Setting Description Type Video Signal Source CH1 CH2 EXT EXT 5 Set CH1 or CH2 as the source of trigging signal Set external triggering or the quotient of dividing external triggering signal by 5 as the signal source Video Setting See Table 2 12 Enter into video setting Table 2 12 Video Setting Menu Setting Description Video Format NTSC PAL NTSC format video signal PAL format vi...

Страница 38: ...rs on positive or negative slope for a given time thus it is suitable for observing sawtooth wave or triangular wave See below Table 2 13 for detailed settings Table 2 13 Slope Triggering Menu Setting Description Slope Type Falling Rising Set to trigger at the edge of trigger signal when slope is falling Set to trigger at the edge of trigger signal when slope is rising Slope Condition Set to trigg...

Страница 39: ... selecting those channels that has signal input as the source for triggering can we get reliable triggered waveform Slope Condition Oscilloscope defines the positive slope time as the time differences between two cross points that are formed when rising slope intersects with both up levels and low level Likewise negative slope time is defined as the time differences between two cross points that a...

Страница 40: ...ring condition for less amplitude pulse triggering Trigger when the less amplitude pulse width is larger than the preset lower limit of pulse width Trigger when the less amplitude pulse width is smaller than the preset upper limit of pulse width Trigger when the less amplitude pulse width equals the preset pulse width Notes UTD2202HM CM does not have less amplitude pulse triggering 2 4 6 Trigger H...

Страница 41: ... CH1 or CH2 When a channel is selected as the trigger source channel we ignore whether or not its input waveform has been displayed External trigger trigger signal can be input directly through input end of external trigger i e we can use an external clock or signal from circuit under test as the trigger source EXT trigger receives external trigger signal via input end of EXT TRIG which is settabl...

Страница 42: ...ignal of less than 10Hz Low frequency reject blocks DC component and attenuates any low frequency component that is less than 80 KHz High frequency reject attenuates any high frequency component that is higher than 80 KHz 4 Pre trigger Delayed Trigger It refers to the data collected before after a trigger event Normally trigger position is set at the horizontal center of a screen where you can obs...

Страница 43: ...er high waveform capture rate Average Times when using average sampling 2 512 Set average times which steps from the multiple of 2 i e 2 4 8 16 32 64 128 256 and 512 Use MULTIPURPOSE knob to change average times 2 5 1 Acquiring Mode Change the acquiring mode settings and observe the consequent change in waveform display Normal Sampling Under this mode oscilloscope takes signal samples at an equal ...

Страница 44: ...ing then respectively waveforms sampled are shown in below Fig 2 25 and Fig 2 26 Fig 2 25 Waveform Sampled without the Use of Averaging Fig 2 26 Waveform Sampled Taking 32nd Power of 2 Times of Averaging High Resolution This mode adopts super sampling technology that averages the proximal points of waveform being sampled In this way it reduces the random noise in the input signal and displays an e...

Страница 45: ... to acquire the sample data required for the display of a waveform 2 5 3 Memory Depth If users intend to observe more details of a waveform they are suggested to use deep memory which provides them with details of waveforms under expanded window and will not cause failure to see details of a waveform due to the larger frequency it has Under deep memory mode the window can be expanded to 10000 time...

Страница 46: ... to normal or single Deep memory and fast sampling can not be opened at the same time 2 5 4 Fast Sampling Fast sampling allows users to capture waveform rapidly With this function the unit can capture 150 000 waveforms per second 150 000 wfms s making it possible for users to see burrs and other accidental transient signal within a few seconds Refer to Fig 2 29 and Fig 2 24 respectively for unit w...

Страница 47: ... narrow pulses would have been omitted if it is under normal mode but the noise also appears to be larger while under such mode Average Mode Under this mode oscilloscope will acquire a few waveforms and calculates their average value before displaying final waveform For periodic signal we can use this method to reduce random noise High Resolution Process the acquired waveform with software average...

Страница 48: ...o be full grid cross hair or frame Continue Auto Short persistence Long persistence Infinite Waveform being displayed updates by normal refresh rate Waveform data being displayed holds for a short period of time before updates Waveform data being displayed holds for a long period of time before updates Original waveform data being displayed remains so and displays along with any new data included ...

Страница 49: ...is the function menu for storage system Fig 2 33 Storage System Menu Key Press STORAGE key to display storage system settings where it allows you to save a waveform shown on the oscilloscope or the unit s settings into the internal storage or U disk and reload the saved waveform from REF A or REF B submenu or reload the saved settings from certain submenu After U Disk is inserted waveform displayi...

Страница 50: ... Table 2 18 Table 2 18 Settings Storage Menu Menu Setting Description Type Settings Save current panel settings Save 1 10 Save settings into internal storage Select storage location using MULTIPURPOSE knob and press down the same to confirm Load 1 10 Load 10 storage positions from the instrument Use MULTIPURPOSE knob to choose one from them and press down the same to confirm Import List of Setting...

Страница 51: ...e please insert U disk will appear 4 One key Print Screen Insert a U disk into the Oscilloscope and then press PrScrn key The screen image will be saved into U disk readily under a default file name of DSO BMP 2 8 Auto Measuring As shown below MEASURE key is for auto measuring function The following introduction will help you get familiar with the powerful auto measuring function provided by this ...

Страница 52: ...veform for delay measurement To waveform edge Rising and falling Select the midpoint between 10 and 90 of the rising or falling edge of a waveform Confirmation Complete the selection of measuring points for the measurement of a delayed waveform and return to measuring menu Table 2 25 Phase Menu Menu Setting Description From CH1 CH2 Select a waveform in a channel as the reference waveform for a pha...

Страница 53: ...equency listed to the bottom of the screen will be cleared 4 Customized parameters allow the measurement of different channels at the same time The method is that if CH1 is to be measured press CH1 for once then the color of measurement shown in the measurement dialog box turns to blue and all the measurement parameters selected are in blue fonts see Fig 2 35 Likewise press CH2 if the customized p...

Страница 54: ...nd GND High The voltage value between the top of a waveform and GND Low The voltage value between the bottom of a waveform and GND Middle Half of the summed voltage value for High and Low Pk Pk The voltage value between the highest and the lowest points of a waveform Ampl The voltage value between the top and the bottom of a waveform Mean Mean amplitude of the waveform being displayed by the scree...

Страница 55: ... Half of the summed voltage value for High and Low Vtop The voltage value between the top of a waveform and GND Vbase The voltage value between the bottom of a waveform and GND Overshoot Ratio between the difference between Max and High and the amplitude Preshoot Ratio between the difference between Min and Low and the amplitude Average Mean amplitude for signal within a cycle Vrms Namely the RMS ...

Страница 56: ... of CH1 and the last falling edge of CH2 2 Oscilloscopes with bandwidth more than 100MHz can auto measure the following time parameters followed by their respective definitions RiseTime Time taken for the amplitude of a waveform to rise from 10 to 90 FallTime Time taken for the amplitude of a waveform to fall from 90 to 10 Positive pulse width Pulse width for positive pulse at 50 of amplitude Nega...

Страница 57: ...usly while maintaining ΔV unchanged Horizontal Unit Base Measurement parameter is voltage measurement parameter is percentage Remarks 1 While the unit is in independent or tracking mode use MULTIPURPOSE knob to select one cursor The selected cursor is in full line and turn MULTIPURPOSE knob to move cursor position 2 Percentage has two optional settings The reason current position is set to be 100 ...

Страница 58: ...ext Page Enter into Next Page Table 2 28 Auxiliary Function Menu 2 Menu Setting Description Frequency Meter Open Close It will be displayed on the top right corner of the screen see remarks AUTO Strategy See Table 2 36 Conditional settings on the use of Auto Close Menu Close the menu display shown at the right side of the screen it can be done by pressing menu off on key Previous Page Return to pr...

Страница 59: ...Reference Waveform CH1 CH2 REFA Take waveform in CH1 or CH2 or REF A as the reference waveform Horizontal Tolerance 1 100 Use MULTIPURPOSE knob to set Vertical Tolerance 1 100 Use MULTIPURPOSE knob to set Create a Template Create and save a template and return to previous page Table 2 33 Waveform Recording Menu Menu Setting Description F1 Playback Key 1 Once this key is pressed the unit starts pla...

Страница 60: ...ess HELP key immediately to enter into key lock log in screen 2 Once the log in screen appears enter password in the password entry field the F1 F5 keys shown to the right corresponds to 1 5 and then select the log in button by turning MULTIPURPOSE knob finally press SELECT key to confirm the log in The preset password can be changed to a new one by selecting change password button Remark The init...

Страница 61: ...etting while the unit is in CH1 CH2 EXT EXT 5 or AC Line mode Trigger Coupling Maintain current setting while the unit is in DC AC Low frequency reject or high frequency reject mode Maintain current setting while the unit is in DC AC Low frequency reject or high frequency reject mode Trigger Mode Auto Auto Hold Off Minimum Value Maintain current setting Trigger Level Set to be 50 Set to be 50 Slop...

Страница 62: ... 35 Signal Identification Lock Open Lock maintain the open or closed state of the channel Open Open or close the channel based on whether or not there is any signal input Cycle displayed Single Cycle Multi cycle It will display single cycle for any input signal when auto setting is enabled It will display multi cycle for any input signal when auto setting is enabled Table 2 37 Items to be Set for ...

Страница 63: ...tion state it indicates that the digital storage oscilloscope is acquiring waveform continuously with an AUTO sign appearing on top of the screen When in stoppage the sign STOP appears on top of the screen This key switches waveform sampling between operation and stoppage Menu ON OFF Key Display or hide current menu This oscilloscope can display or hide menu through the use of Menu ON OFF key Howe...

Страница 64: ...splay auto measuring menu Press F2 key to select measuring menu Use MULTIPURPOSE knob to select peak peak value press the same to confirm and then choose frequency Press F5 key to exit select box Right now measurement result of peak peak value and frequency are displayed at the lower part of the screen respectively as shown below Fig 3 1 Auto Measuring 3 2 Capture a Single Time Signal The advantag...

Страница 65: ...sample for once and have it displayed on the screen With this function occasional events can be easily captured i e sudden burr with relatively large amplitude the trigger level is set to be a bit higher than normal signal level Press RUN STOP key to standby and when the burr appears the unit will trigger automatically and record waveform for a period before and after the trigger In order to obser...

Страница 66: ...bove 80 Hz and allow low frequency signal component to pass By setting up the low or high frequency rejects respectively low or high frequency noise can be rejected thus to acquire stable trigger 1 Reduce displayed noise by setting sampling mode If random noise is contained in the signal under test it will result in a waveform that is too coarse Therefore average sampling method or high resolution...

Страница 67: ... operation under certain circumstance However high resolution well overcomes this issue Average modes used by average and high resolution modes are not the same with former being the average based on multiple samplings and the latter being the average based on a single sampling Specific operations are Press ACQUIRE key located on the menu area of the panel to display sampling setting menu Press F1...

Страница 68: ...he sine signal 6 Press SELECT to select cursor 2 and then turn MULTIPURPOSE knob to move cursor 2 to the second peak value of the sine signal Fig 3 6 Use Cursors to Measure Signal Frequency 2 Measure Negative Duty Ratio of Pulse Signal 1 Press CURSOR key to display cursor measurement menu 2 Press F1 key to open cursor measurement function 3 Press F1 key again to set cursor type to be time 4 Press ...

Страница 69: ... cursor type to be time 4 Press F3 key to set the vertical unit as phase 5 Use MULTIPURPOSE knob to move cursor 1 to the midpoint of the first rising edge of the pulse the cross point with GND of the channel 6 Press SELECT to select cursor 2 and then turn MUTIPURPOSE to move cursor 2 to the midpoint of the second rising edge of the pulse 7 Press F4 and it displays current position 360 meaning to s...

Страница 70: ... set the switch on the probe to be 10 2 Connect the probe of CH1 to the input of the network and then connect the probe of CH2 to the output of the network 3 If channels have not been displayed then press down CH1 and CH2 menu keys to open the two channels 4 Press AUTO key 5 Adjust the vertical scale knob to make the amplitudes of the two signals appear approximately equal 6 Press DISPLAY menu key...

Страница 71: ...n integral multiple the frequency and phase relation of the two signals can then be calculated based on the graphic X Y Phase Difference Table Signal Frequency Ratio Phase Difference 0 45 90 180 270 360 1 1 3 6 Example of Video Triggering Observe a video circuit and apply video triggering to acquire stable display of video output signal Video Field Trigger To do video field trigger please follow t...

Страница 72: ...ing Press F1 to set video format to PAL 5 Press F2 and then use MULTIPURPOSE knob to select row synchronization 6 Use MULTIPURPOSE knob to set the row to be any row 7 Time base knob located in the horizontal control area should be used to adjust horizontal time base so as to get a clear waveform display Fig 3 11 Video Row Trigger 3 7 Example of Less Amplitude Pulse Trigger Less amplitude pulse in ...

Страница 73: ... use MULTIPURPOSE knob to select less amplitude pulse in the ejected menu then press SELECT to confirm the selection 3 Press F2 to set signal source as CH1 Now the waveform we see can not be triggered stably 4 Press F3 to select high and low level respectively and use trigger level knob to adjust the corresponding high and low level separately 5 Press F5 to enter into less amplitude pulse settings...

Страница 74: ...panel of the oscilloscope B After press the PrScrn key located above the screen a saving progress bar appears below the waveform displaying area Once this bar runs to the end the screen image will be saved to the root directory of the U disk successfully under the name of DSO BMP 2 For easier identification of the saved image we can set a descriptive name for each image please refer to the followi...

Страница 75: ...he designated name Save Waveform Data UTD2000CM series instruments also provide waveform storage function which can be used to export data in CSV format for analysis Please follow the following steps to operate 1 Insert U disk into the USB HOST port located on the front panel of the oscilloscope 2 Press STORAGE key and then press F1 Thereafter use MULTIPURPOSE knob to select Settings 3 Press F2 ke...

Страница 76: ...y using MULTIPURPOSE knob Horizontal 1 100 Pixel Vertical 1 100 Pixel After that press F5 set and save the template and return to Pass Fail menu 4 Set output condition Press F5 to return to the first page of Pass Fail menu Press F2 to set the Pass Fail port located behind the oscilloscope and the judgment condition for output of buzzer While in Pass Fail menu press F1 to open the Detection State a...

Страница 77: ...UTD2000M User Manual Fig 3 16 Pass Fail Detection Setting 1 Fig 3 17 Pass Fail Detection Setting 2 76 ...

Страница 78: ...isk then turn it on 3 If only one program file is contained in the U disk the unit will show the confirmation screen Press F5 to proceed updating and press F1 to exit updating program If there are two or more program files saved in the U disk the instrument will show file selection screen which allows users to select program files through multipurpose knob and then Press F5 to confirm Press F1 to ...

Страница 79: ...e soft start switch is pressed down if the unit does start we should hear the noise of relay If there is the noise of relay it indicates the oscilloscope has been started normally Then we can try the following operations press UTILITY key then press F1 and F5 one after another finally turn MULTIPURPOSE knob to right If it becomes normal it indicates that the unit s contrast ratio had been set too ...

Страница 80: ...TO key to complete above settings automatically 4 If the displaying speed gets slower once the average sampling mode is selected If averaging times is above 32 times usually the displaying speed will get slower which is a normal phenomenon Averaging times can be reduced 5 The display of waveform appears in stair step shape This phenomenon is normal which is possibly due to over low horizontal time...

Страница 81: ...age is unzipped place the same to root directory of the U disk The suffix of updating program is uts Conditions Required for Program Updating 1 Applicable product mode of the updating program package must be consistent with the mode of the oscilloscope to be updated 2 Applicable hardware version of the updating program package must be consistent with the hardware version of the oscilloscope to be ...

Страница 82: ...hat current program updating has been completed successfully As it is shown in Fig 5 2 it prompts that Congratulation Update process Success Please pull out U disk and reboot Notes 1 Please do not cut off the power in the process of updating otherwise it may have unknown mistakes 2 Once the program updating completes please restart the oscilloscope The oscilloscope will be initialized and it may t...

Страница 83: ...any implied warranty of merchantability or fitness for a particular purpose UNI T or its authorized distributor shall not be liable for any special indirect incidental or consequential damages or losses regardless of whether or not they have been notified of such possibilities 5 3 How to Contact Us In case this product has brought you any inconvenience during your use of it you may directly contac...

Страница 84: ...e word typical the effectiveness of all specifications are guaranteed Technical Indexes Sampling Mode Sampling Mode Real time Sampling Equivalent Sampling Sampling Rate Single Channel 1GS s Dual Channel both 500MS s 50GS S Average Value When all channels reach N times of sampling simultaneously wherein N can be any number among 2 4 8 16 32 64 128 256 and 512 Input Input Coupling DC AC GND Input Im...

Страница 85: ...l channel Normal 6kpts Deep 4Mpts Waveform Capture Rate 150000wfms s Horizontal Scale s div 2ns div 50s div stepping in 1 2 5 format Sampling Rate Delay Time Accuracy 50ppm any time interval 1ms 50ppm any time interval 1ms Time Interval T Measurement Accuracy Full Bandwidth Single 1 sampling time interval 50ppm readings 0 6ns 16 average values 1 sampling time interval 100ppm readings 0 4ns Bandwid...

Страница 86: ...tical displacement readings 0 2div 5mV div 200mV div 2mV 200mV div 5V div 50mV Measurement Accuracy for Voltage Difference V Under the same settings and environment condition voltage difference between any two arbitrary points located on the waveform formed after taking average value for at least 16 waveforms captured ΔV 3 readings 0 05 div Trigger Sensitivity Trigger Sensitivity Internal Trigger ...

Страница 87: ...ual Mode Voltage difference between cursors ΔV time difference between cursors ΔT inverse of ΔT Hz 1 ΔT Tracking Mode Voltage value and time value for a point on waveform Auto measuring Mode Allow cursor to be displayed during auto measuring Auto Measuring 34 kinds of measurement including maximum value minimum value top value bottom value median value Peak to peak value amplitude value average va...

Страница 88: ...play Resolution Display 800 Horizontal Pixel RGB 480 Vertical Pixels Display Color 64K colors Waveform Display Area 12 grids each grid has 50 points vertical 8 grids each grid has 50 points Output of Probe Compensator Output Voltage Typical Approximately 3Vp p load 1MΩ Frequency 100Hz 1kHz 10kHz Ports Standard Configuration 1 USB D 1 USB H Pass Fail Optional Accessories LAN GPIB RS232 Power Mains ...

Страница 89: ...d Accessories Two 1 2 meters long passive probes 1 1 10 1 and in conformity to EN61010 031 2008 For details refer to appendix on accessories shown in the Manual When switch is in 1 position probes should comply with 150V CAT II When switch is in 10 position probes should comply with 300V CAT II A power cable that conforms to the standard of the home country A User Manual A Warranty Card Communicat...

Страница 90: ...he power before cleaning and then clean it with damped cloth without dropping water Mild detergent or water can be used to clean dust on the instrument but do not apply any abrasive chemical detergent so as to avoid damage to the instrument or its probes Warning To avoid any short circuit or even personal injury arisen from residual water please make sure the instrument is totally dried before pow...

Страница 91: ...e 500s div Horizontal Displacement Horizontal Midpoint Trigger System Hold Off Time Minimal Value 100 0000ns Trigger Type Edge Signal Source CH1 Coupling Mode DC Trigger Mode Auto Slope Type Rising Display Display Type Format Vector Persistence Short Persistence Waveform Brightness 88 Other System Save Type Setup Frequency Meter Open Measurement Closed clear all measurement Cursor Closed Contrast ...

Страница 92: ...UTD2000M User Manual This user manual may be revised without prior notice 91 ...

Страница 93: ...UTD2000M User Manual 92 ...

Страница 94: ...UTD2000M User Manual 93 ...

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