UNI-T UTD2000CEX-II Series, UTD2102CEX-II, UTD2072CEX-II User Manual

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UTD2000CEX-II Series

Digital oscilloscope

User Manual

Table of contents

General safety overview-------------------------------------------------------------- 2

Safety terms and symbols 3

Chapter 1 - Introduction guide 4

1.1 General check 4

1.2 Before use 4

1.3 Front panel introduction 5

1.4 Back panel introduction 6

1.5 Overview of operation panel function 6

1.6 User interface 9

Chapter 2 -Vertical channel setting 9

2.1 pen / activate / close analog channel 9

2.2 Channel coupling 10

2.3 Bandwidth limit 10

2.4 voltage /division 10

2.5 Probe 10

2.6 Reversed phase 10

Chapter 3 - Trigger system setting 10

3.1 rigger system interpretation 10

3.2 Edge trigger 11

3.3 Pulse trigger 12

3.4 Video trigger 13

3.5 Slope trigger 14

3.6 Under amplitude trigger 15

3.7 Over amplitude trigger 16

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Chapter 4 - Horizontal system setting------------------------------------------ 17

4.1 ROLL scroll mode--------------------------------------------------------------- 17

4.2 Windows extensions------------------------------------------------------------ 17

4.3 Independent Time Base------------------------------------------------------- 18

Chapter 5 - Mathematical operation--------------------------------------------- 18

5.1 Mathematical function---------------------------------------------------------- 18

5.2 FFT--------------------------------------------------------------------------------- 19

5.3 Logical operation---------------------------------------------------------------- 20

Chapter 6 -Sampling system setting-------------------------------------------- 21

6.1 Sampling rate--------------------------------------------------------------------- 21

6.2 Acquisition type------------------------------------------------------------------- 22

6.3 Storage depth-------------------------------------------------------------------- 23

Chapter 7 - Display system setting --------------------------------------------- 23

7.1 XY Mode--------------------------------------------------------------------------- 24

7.2 Application of XY model-------------------------------------------------------- 24

Chapter 8 - Automatic measurement--------------------------------------------25

8.1 All parameters measurement------------------------------------------------- 26

8.2 Voltage parameter--------------------------------------------------------------- 27

8.3 Time parameter------------------------------------------------------------------ 27

8.4 Delay parameter----------------------------------------------------------------- 27

8.5 User defined parameters------------------------------------------------------ 27

Chapter 9 - Cursor measurement------------------------------------------------ 28

9.1 Time measurement------------------------------------------------------------- 28

9.2 Voltage measurement 28

Chapter 10 - Storage and callback

10.1 Set up storage and callback 29

10.2 Waveform storage and callback 29

10.3 Screen copy 30

Chapter 11 - Auxiliary function setting

11.1 Waveform recording 31

11.2 Pass test 31

11.3 System upgrade 32

Chapter 12 - Other function key 36

12.1 Auto setup 36

12.3 Factory setting 36

Chapter 13 - System prompt and troubleshooting

13.1 System prompt information explaination 37

13.2 Troubleshooting 38

Chapter 14 - Technical specification

Chapter 15 - Appendix 42

Appendix A: Accessories and options 42

Appendix B: Maintenance 42

Appendix C: Warranty overview 43

Appendix D: Contact us 43

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11.4 waveform record---------------------------------------------------------------33

11.5 AUTO strategy---------------------------------------------------------------- 34

11.6 Recorder ------------------------------------------------------------------------ 35

11.7 Waveform generator---------------------------------------------------------- 35

11.8 System Upgrade--------------------------------------------------------------- 35

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12.2 Run/Stop------------------------------------------------------------------------ 36

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PREFACE Dear Users:

Hello! Thank you for choosing this brand new UNI-T device. In order to safely and correctly use this instrument .please read this manual thoroughly, especially the Safety Notes part. After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably close to the device, for future reference.

UNl-T Uni-Trend Technology (China) Limited. All rights reserved. Trademark Information UNI-T is the registered trademark of Uni-Trend Technology (China) Limited. Document Version UTD2000CEX-II-20170422-V2.00

Statement

UNI-T products are protected by patent rights in China and foreign countries, including issued and pending patents. UNI-T reserves the rights to any product specification and pricing changes. UNI-T reserves all rights. Licensed software products are properties of Uni-Trend and its subsidiaries or suppliers, which are protected by national copyright laws and international treaty provisions. Information in this manual supercedes all previously published versions.

Warranty

UNI-T will guarantee that the product will be free from defects for a three-year period. If the product is re-sold, the warranty period will be from the date of the original purchase from an authorized UNI-T distributor. Probes, other accessories, and fuses are not included in this warranty. If the product is proved defective within the warranty period, UNI-T reserves the rights to either repair the defective product without charging of parts and labor, or exchange the defected product to a wor king e quival ent pr oduct. Repla cemen t parts and pr oducts may be brand new, or pe rform a t the s ame spe cific ation s as bra nd new products. All replacement parts, modules, and products become the property of UNI-T. The “customer” refers to the individual or entity that is declared in the guarantee. In order to obtain the warranty service, "customer" must inform the defects within the applicable warranty period to UNI-T, and to perform appropriate arrangements for the warranty service. The customer shall be responsible for packing and shipping the defective products to the designated maintenance center of UNI-T, pay the shipping cost, and provide a copy of the purchase receipt of the original purchaser. If the product is shipped domestically to the location of the UNI-T service center, UNI-T shall pay the return shipping fee. If the product is sent to any other location, the customer shall be responsible for all shipping, duties, taxes, and any other expenses. This warranty shall not apply to any defects or damages caused by accidental, machine parts’ wear and tear, improper use, and improper or lack of maintenance. UNI-T under the provisions of this warranty has no obligation to provide the following services:

UTD2000CEX-II User Manual

a) Any repair damage caused by the installation, repair, or maintenance of the product by non UNI-T service representatives. b) Any repair damage caused by improper use or connection to an incompatible device. c) Any damage or malfunction caused by the use of a power source that does not conform to the requirements of this manual. d) Any maintenance on altered or integrated products (if such alteration or integration leads to an increase in time or difficulty of product maintenance).

This warranty written by UNI-T for this product, and it is used to substitute any other express or implied warranties. UNI-T and its distributors do not offer any implied warranties for merchantability or applicability purposes. For violation of this guarantee, UNI-T is responsible for the repair or replacement of defective products is the only remedy available to customers. Regardless of whether UNI-T and its distributors are informed that any indirect, special, incidental, or consequential damage may occur, UNI-T and its distributors shall not be responsible for any of the damages.

General Safety Overview

This instrument strictly complies with the safety requirements for electronic measuring instrument GB4793 and IEC 61010-1 safety standard during design and manufacturing. Please understand the following safety preventative measures, to avoid personal injury, and to prevent damage to the product or any connected products. To avoid possible dangers, be sure to use this product in accordance with the regulations.

Only trained personnel can perform the maintenance program. Use the correct power line: Only use the dedicated UNI-T power supply appointed to the local region or country for this product. Correct Plug: Don't plug when the probe or test wire is connected to the voltage source.。 Ground the product: This product is grounded through the power supply ground wire. To avoid electric shock, grounding conductors must be connected to

the ground. Please be sure that the product is properly grounded before connecting to the input or output of the product.

Correct connection of oscilloscope probe: Ensure that the probe ground and ground potential are correctly connected. Do not connect ground wire to high voltage. Check all terminal ratings: To avoid fire and the large current charge, please check all the ratings and the marks on the product. Please also refer to the

product manual for details on the ratings before connecting to the product.

Do not open the case cover or front panel during operation。 Only use fuses with ratings listed in the technical index Avoid circuit exposure: Do not touch exposed connectors and components after power is connected. Do not operate the product if you suspect it is faulty, and please contact UNI-T authorized service personnel for inspection. Any maintenance, adjustment,

or replacement of parts must be performed by UNI-T authorized maintenance personnel.

Maintain proper ventilation Please do not operate the product in humid conditions Please do not operate in inflammable and explosive environment Please keep the product surface clean and dr

UTD2000CEX-II User Manual

Safety Terms and Symbols

The following terms may appear in this manual: Warning: The conditions and behaviors may endanger life. Note: The conditions and behaviors may cause damage to the product and other properties. The following terms may appear on the product: Danger: Performing this operation may cause immediate damage to the operator. Warning: This operation may cause potential damage to the operator. Note: Th is oper ation m ay cause damage to the p roduct and dev ices connected to the product. The following symbols may appear on the product:

Perface

This man ual des cribes the ope ration o f the UT D2000C EX-II s eries digital oscillo scope . T he manu al incl udes the follow ing sec tions:

Chapter 1 Intro ductio n Guide Chapter 2 Vertical channe l setting Chapter 3 Trigger s ystem s etting Chapter 4 Horiz ontal s ystem setting Chapter 5 Mathe matica l operation Chapter 6 Sampl ing sys tem setting Chapter 7 Displ ay syst em setting Chapter 8 Automati c measu rement Chapter 9 Curso r measu rement Chapter 10 Stor age and callba ck Chapter 11 Auxiliary fu nction setting Chapter 12 Othe r funct ion keys Chapter 13 Syst em prom pt and troubles hootin g Chapter 14 Technical sp ecific ation Chapter 15 Appendi x

UTD2000CEX-II User Manual

Brief introduction of UTD2000CEX-II series digital phosphor oscilloscope

1) UTD2000CEX-II series digital oscilloscope contains the following 2 models

UTD2102CEX-II

UTD2072CEX-II

Model

Analog channel number

Analog bandwidth

2) UTD2000CEX-II series digital oscilloscope is based on UNI-T’s unique Ultra Phosphor technology. A multi-functional, high performance oscilloscope tha t is easy to u se, w ith exc elle nt t echnica l sp ecif ica tions, a per fect combination of many functionalities that can help users to quickly conduct testing. UTD20 00CEX-II series is aimed at satisfying the most e xtensive os cil los co pe m ark et s, i ncl udi ng com mun ic ati ons , s emi con duc to rs, computers, aerospace de fense, instr umentation, industrial electronics , consumer electron ics, automotive el ectronics, field maintenance, R&D, education, etc.

3) Main features of UTD2000CEX-II series digital oscilloscope:

● Configure 100MHz/70MHz two levels bandwidth, providing two channels

for each model

● The highest real-time sampling rate: 1GS/s, can capture the faster signal

● Standard storage depth of 25kpts.

● Waveform capture rate of up to 30,000wfms/s

● Wav eform uni nt err up ted recor din g s upp or ts u p t o 80 00 w av efo rm s

● 8 inches WVGA (800 * 480) TFT LCD, ultra wide screen, vivid color, clear

display

● Ab undan t t ri gg er fe at ur es, inclu di ng a v ar ie ty of advan ced tr ig ge r

● Standard configuration interface: USB-OTG, Pass/Fail (pass / fail)

● Automatic measurement of 34 waveform parameters

● Support USB disk storage and software upgrades via USB disk, one key

copy screen capture function

● Su pp ort Pl ug a nd Pla y U SB dev ic es, an d ca n u se U SB inter fa ce t o

communicate with the computer

Chapter 1 – Introduction Guide

This chapter introduces on using the oscilloscope for the first time, the front and rear panels, the user interface, as well as the built-in help system.

1.1General Inspection

It is recommended to follow the steps below before using the UTD2000CEX-II series for the first time.

1.1.1 Check for Damages caused by Transport

If the packaging carton or the foam plastic cushions are severely damaged, please contact the UNI-T distributor of this product immediately.

1.1.2 Check attachments

Please check Appendix A for the list of accessories. If any of the accessories are missing or damaged, please contact UNI-T or l ocal distr ibutors of t his product.

1.1.3 Machine Inspection

If the instrument appears to be damaged, not working properly, or has failed the functionality test, please contact UNI-T or local distributors of this product. If the equipment is damaged due to shipping, please keep the packaging and notify both the transportation department and UNI-T distributors, UNI-T will arrange maintenance or replacement.

1.2 Before Use

To perform a quick verification of the instrument’s normal operations, please follow the steps below:

1.2.1 Connect to the Power Supply

The power supply voltage range is from 100 VAC to 240 VAC, the frequency range is 45Hz to 440Hz. Connect the oscilloscope to the power supply line that came with the oscilloscope or any power supply line that meets the host country standards. Turn the power button on the back of the oscilloscope to ON. Now the soft power button in the front of the oscilloscope should be lit green.

UTD2000CEX-II User Manual

1.2.2Boot Check

Press the soft power button and the light should change to yellow. The oscillo scope th en will show a bo ot anim ation, a nd it will enter the norm al interface afterwards.

1.2.3Basic Function Check

After the oscilloscope enters the normal interface, find the button at the bottom right of the operation panel. Long press button to hear the voice of the relay switch, and then press the button, the screen will automatically complete the signal condition, 1kHz ,3Vpp square wave signal appears on the sc re en . Pr es s th e k ey ag ain , t he n th e i nt er nal re fe ren ce in pu t is disconnected, the channel can be in a normal external input state.

1.2.4Probe Compensation

When the probe is connected to any input channel for the first time, this step might be required in order to match the probe and the input channel. Please follow the following steps:

① Set the attenuation coefficient in the probe menu and the switch on the probe to 1 0x, and co nnect the p robe to CH 1. Make su re the probe’s c onnector is properly connected with the oscilloscope. Connect the probe’s main clip and gr ound cli p to the o scillos cope’s ca librati on and g round terminal respectively. Open CH1 and press the button. ② Observed waveforms

Excessive Compensation Correct Compensation 　 Insufficient Compensation

③ If the displayed waveform does not look like the above “correct compensation” waveform, use a non-metallic screwdriver to adjust the probe’s variable capacitance until the display matches the "correct compensation" waveform.

Warning: To avoid electric s hock when me asuring hig h voltage us ing the probe, please ensure that the probe insulation is in good condition and avoid physical contact with any metallic part of the probe.

1.3Front panel introduction

Front panel

UTD2000CEX-II User Manual

①.Screen display area

②. Multifunction knob

③. Function menu key ④. Control menu softkey. ⑤. Probe compensation signal connecting piece and grounding ⑥. Trigger control area. ⑦. Horizontal control area. ⑧. Vertical control area. ⑨. Analog channel input. ⑩. Power soft key

1.4 Back panel introduction

1 2

Back panel

①.Pass/Fail：Pass/fail test output, also supports Trig_out output

②. AWG：This model does not support ③. Security lock: you can use the security lock (sold separately)

Oscilloscope can be locked in a fixed position through the key hole .

④. Power Switch: after the AC socket is connected to the power supply, turn

on the Power Switch. Press the button on the front panel to Power On.

⑤. AC power input socket : AC power input port . Use the power cord supplied within the accessory package to connect the oscilloscope to the AC power supply (the power supply for the oscilloscope to require is 100 to 240 V, 50Hz/60Hz).

1.5 Operation Panels

This section describes the front panel operations to help users to quickly familiarize with the UTD2000CEX-II series.

(1)Vertical Control

①.Press buttom to open or close the two channels display. ②. Press buttom to open the mathematical operations menu for add, subtract, multiply, divide, FFT, filtering, logic, and advanced operations. ③. Vertical Position Knob: Used to adjust the vertical position of the current channel waveform. ④. Vertical Scale Knob: Used to adjust the vertical scale of the current waveform. The vertical scale has 1, 2, and 5 steps.

UTD2000CEX-II User Manual

(2) Le ve l Con tr ol

①.Press buttom to display wind ow extension a nd holdoff time.

②. Horizonta l Position Knob：used t o adjust the horizonta l position of the current channel waveform. ③. Horizontal Scale Knob：used to adjust the vertical scale of the current waveform. The vertical scale has 1, 2, and 5 steps.

(3) Tri gg er Co nt rol

① Trigger Level Knob：used to adjust the currently selected trigger level.

② Press to pop-up the trigger menu.

③ Press to force generate a single trigger event . ④ Press to display the built-in help information . ⑤ Press to center the trigger level, trigger position, and channel position

simultaneously.

UTD2000CEX-II User Manual

( ) Aut o Se tti ng4

When this ke y is presse d, the oscil loscope wi ll automatically adju st the vertical sc ale factor, time base, and t rigger mode according to the inpu t signals.

(5). Run/S top

Press the k ey to "run" or "stop" sa mpling. RU N state is in dicated by green light . STOP state is indicated b y red light .

(6). Singl e trigg er

Press this k ey to set up single trig ger mode.

(7).Correction signal switching

Long press the key to drive the cor rection si gnal to enter or leave t he channel

(8).Screen copy

Press this key to quickly copy the screen wav eform to the USB storag e device in BM P bitmap form at

(9).Multipurpose Knob

Multipurpo se: During menu operat ions , turn the knob to s elect subm enu, then press t he knob to c onfirm the o ptions .

(10).Function Keys

①. Measure se tting key: can set meas ure source to all param eters, custom par ameters and perform me asurement statistics, select measureme nt indicat ors, etc. ②. Sampling setting key: set up acquisition mode and the storage depth . ③. Stor age in terface key: can se lect di fferen t type s for st orage and waveform, which can be stored int ernally or through USB device. ④. Curs or m eas ure men t ke y : c an m easu re w ave for m’s time and voltage ma nually wit h cursor. ⑤. Display set ting key : used f or the display settings such a s display type, form at, duration, grid bri ghtness, a nd waveform brightnes s. ⑥. The utility key : can be used to choose some less commonly used settings s uch as self-calibrati on, system information, languag e, menu display, waveform recording, pass test, square wave output, frequency meter, system up grades, ba cklight br ightness, o utput, etc .

⑦. Press th is key to res tore to fac tory default settings . ⑧. Press th is key to ope n the wavef orm recording menu.

UTD2000CEX-II User Manual

1.6 User interface

Dis play in terfa ce

①.Trigger status identific ation: inc lude TRIGED , AUTO, READY, STOP, and ROLL ②. Indicates the amount of time represented by one square, which can be adjusted by the horizontal scale knob. ③. Shows the horizonta l displace ment, whic h can be adj usted by tu rning the horizontal position knob. ④. Displays trigger source, type, slope, coupling, level, etc.

a. Trigger Source: they are CH1, CH2, AC Line, EXT,etc. b Trigger types : edge, pulse width, video, slope, etc.. c Trigger slope: rising, falling, and rising/falling. For example, is rising.. d Trigger coupling: DC, AC, high frequency, low frequency and noise. . For example, is DC coupling. ⑤. Hardware frequency meter: display the frequency information of current channel. ⑥. USB d evice Identific ation : This i con wi ll be d ispla yed when an USB storage device is connected. ⑦. Channel vertical status Identification: Displays channel activation state, channel coupling, bandwidth limit, vertical profile, and probe attenuation

coefficient. ⑧. Sampling Rate/A cquisiti on Mode: I ndicates the current sampl ing rate and storage depth.

Chapter 2 -Vertical Channel Setting

2.1 Open / activate / close analog channel

CH1~CH2 contains 3 states: open, activate, and shut down.

Open: Allows the corresponding channel waveform to be displayed on the screen. Activate: Only opened state can be activated. In the active state，the vertical menu and the vertical control knobs (POSITION, SCALE) are available for changing activated channel setting. Any of the channels that has been opened but not be en activ ated coul d be acti vated by p erssing the correspondin g channel keys

Shut down : No waveform appears on the display. The table below describes the channel menu:

Description

Pass AC and DC components of the input signal

Pass AC part of input signal only

Displays ground signal

Turns off bandwidth limit function

Limits bandwidth to 20MHz to reduce the noise.

The vertical sensitivity of the current channel can be set to 1, 2, and 5 order.

Set Fine Adjustment to be within the coarse range. Set the channel’s vertical sensitivity with 1% of the current amplitude value.

A value is automatically selected according to the probe’s attenuation coefficient, to ensure consistency between the vertical profile readout and the displayed waveform.

Normal waveform display

Reverse waveform

Options

Ground

Full bandwidth

20M

Coarse Adjustment

Fine Adjustment

Off

Functions

Coupling

Bandwidth Limitation

Vertical Sensitivity

Probe

Reverse Phase

UTD2000CEX-II User Manual

Chapter 3 - Trigger System Setting

Trigger determines when the oscilloscope starts to collect data and displays waveform. Once the trigger is correctly set, it can convert unstable signals into meaningful waveforms. In the beginning of data acquisition, it collects enough data to compose the wave form starting at the lef t of the trigger point, and continues until the trigger condition is met.

3.1 Trigger System Interpretation (1)Trigger Source

Trigger Source : a signal to be used to generate a trigger. Triggers can be obtained from a variety of sources such as input channels (CH1, CH2), external trigger (EXT), Line AC, alternate trigger, etc.

■ Input channel: Select any one of the analog signal input terminal (CH1,CH2)

on the front panel of the oscilloscope as a trigger signal.

■ External trigger: Select the input Trig EXT from the back of the oscilloscope. For example, the external clock input can be used on the Trig EXT terminal as a trigger source. EXT signal trigger level ranges from –3V~ +3V which can be set.

■ AC Line：Power supply signal, used to observe the relationship between power signals such as lighting equipment and power supply equipment, to obtain stable synchronization.

■ Alternate trigger: automatically turn on the independent time base after being selected .

(2) Trigger Mode

This oscilloscope provides three kinds of trigger modes: Auto trigger, Normal trigger, and Single trigger

■ Auto trigger: When there is no trigger signal, the system automatically runs and displays data. When the trigger signal is generated, it automatically switch to trigger scanning and signal synchronization.

2.2 Channel Coupling Using CH1 as an example, when a signal is connected to CH1 and activated, press F1 and select channel coupling via the multipurpose knob. You can also switch to channel coupling by continuously pressing the F1 key. Press the multipurpose knob to confirm selection.

2.3 Bandwidth Limitation When bandwidth limitation is open, the bandwidth of the oscilloscope is limited to about 20MHz, and attenuates any signal above 20MHz. It is commonly used to reduce the high frequency noise . When the bandwidth limit function is on, the BW logo will appear in the vertical state identification

2.4 Vertical Sensitivity The vertical sensitivity is divided into coarse and fine adjustments. In coarse adjustment, the sensitivity range is from 1mV/div ~ 20V/div, with 1 – 2 – 5 order. For example: 10mV - >20mV - >50mV - >100mV In fine adjustment, it is adjusted with 1% of the current amplitude value .

For example：10.00mV—>10.10mV—>10.20mV—>10.30mV Note: div means square of the display area , one div(square) stands for one grid

2.5 Probe In order to set the attenuation coefficient of the probe, the coefficient needs to be set up in the channel operation menu. If the probe attenuation coefficient is 10:1, the probe coefficient should then be set to 10X to ensure correct voltage reading. The coefficients can be set to 0.001X, 0.01X, 0.1X, 1X, 10X, 100X, and 1000X with 1 – 2 – 5 order.

2.6 Reverse Phase When reverse phase is turned on, the waveform flips 180 degrees. A reverse phase logo will appear in the vertical state identification

UTD2000CEX-II User Manual

Note: This mode allows 50ms/div or slower time shift without triggering in ROLL mode.

■ Normal trigger: The oscilloscope can only collect data when the trigger condition is satisfied. When it is not triggered, the oscilloscope will wait for the triggered signal.

■ Single triggle : When the user presses the "run" button, the oscilloscope will wait for the trigger. When the instrument detects a trigger, the waveform is sampled and displayed, and enters the STOP state. Press the SINGLE button on the front panel of the oscilloscope to quickly enter the single trigger mode.

(3) Trigger Coupling

Trigger coupling determines which part of the signal will be transmitted to the trigger circuit. The coupled type includes DC, AC, low frequency, high frequency suppression, and noise suppression.

■ DC：Pass all components of the signal

■ AC: Blocks the DC component and attenuates any signal components below 10Hz.

■ High frequency suppression: Attenuates high frequency components over 1MHz.

■ Low frequency suppression: Blocks the DC component and attenuates low frequency components below 680 kHz.

■ Noise suppression: Suppress high frequency noise in the signal, and reduces probability of error.

(4) Trigger Sensitivity

The minimum signal required to generate a correct trigger. For example, normally the input channel (CH1~CH2) trigger sensitivity is 1div, which means the signal should be at least 1 div.

(5) Pre-Trigger / Delayed Trigger

Data collected before / after the Trigger event. Trigger position is usually set at the level center of the screen, and you can observe 7 grids of pre-trigger and delay trigger information. The horizontal displacement of the wave can be adjusted by the horizontal displacement position knob in order to observe more pre-trigger information.

(6) Forced Trigger

Press the FORCE key to generate a forced trigger signal. If the waveform is not displayed in normal mode or single shot mode, press the FORCE button to collect signal baseline to ensure the acquisition is normal.

3.2 Edge Trigger

The signal can be triggered by the rising or falling edge. Press the TRIG MENU to enter the trigger menu. Press F1 to select the trigger type, and select the edge trigger mode with the multipurpose knob.

The edge trigger menu descriptions :

Options

Edge

CH1, CH2

EXT

AC Line Alternate trigger

fall

Rise/fall

Functions

Type

Sources

Descriptions

Set any one of the CH1,CH2 as a trigger signal

Set external trigger as the source

Set AC line as trigger

Set CH1, CH2 as alternate trigger source

Set the falling edge as the trigger signal

Set the rising and falling edge as the trigger signal

Pass all components of the signal

Blocks the DC components of the signal

UTD2000CEX-II User Manual

Trigger Coupling

Trigger Mode

Slope

Suppression of signal frequency above 1.23MHz

Suppression of signal frequency below 680kHz Suppress the noise of the trigger signal,

trigger sensitivity is halved.

When the signal input is not triggered, the system automatically collects the waveform data and displays the scan baseline on the screen. When a trigger signal is generated, it automatically turns to the trigger scan.

The data acquisition stops when the signal is not triggered.

Generates a trigger , and then stops

Set the rising edge of the signal as trigger

Set the falling edge of the signal as trigger Set the rising and falling edge of

the signa as trigger

High frequency suppression

Low frequency suppression

Noise suppression

Auto

Normal

Single

Rise

Fall

Rise/fall

3.3 Pulse Width Trigger

Pulse width trigger can set the capture condition through the pulse width. Press the TRIG MENU button to enter the trigger menu. Press F1 to select trigger type, and select the Pulse Width Trigger mode with using the Multipurpose knob.

The pulse width trigger setting menu (1) :

Options

Pulse Width

CH1, CH2

EXT

AC Line

AC High frequency

suppression

Low frequency suppression

Noise suppression

Auto

Normal

Single

Functions Type

Sources

Trigger Coupling

Trigger Mode

Pulse Width Setting

Descriptions

Set any one of the CH1,CH2 as the trigger source

Set external trigger as the trigger source

Set AC line as the trigger source

Pass all components of the signal

Blocks the DC components of the signal

Suppression of signal frequency above 1.23MHz

Suppression of signal frequency below 680kHz

Suppress the noise of the trigger signal, trigger sensitivity is halved.

The data acquisition stops when the signal is not triggered.

Generates a trigger , and then stops

Enter settings page

Enter Trigger Setting Menu (2)

UTD2000CEX-II User Manual

The pulse wi dth trigger setting me nu (2) :

Descriptio ns

Set positiv e pulse as t rigger sign al

Set negativ e pulse as t rigger sign al

Triggered when the pulse w idth is greater t han the set ting time

Triggered when the pulse w idth is samller t han the set ting time

Triggered when the pulse w idth is equal to t he setting time

The pulse wi dth time ca n be set from

20.0ns~10. 0s by using the Multipurpo se knob

Options

Pulse Width

Positive

Negative

20.0ns~10. 0s

Functions

Type

Pulse Width Polarity

Pulse Width Condition

Pulse Width Setting

Pulse Width : The time diff erence betw een the tri gger level of the posit ive pulse is def ined as the positive pu lse width, and the time difference between the trigger le vel of the ne gative pul se is defin ed as the neg ative pulse width , as shown i n the follow ing diagra m.

Positive

Negative

3.4 Video Trigger

The waveform of t he video signal i ncludes the imag e signal and the time sequ enc e sig nal , and eac h ki nd of sig nal u ses diff ere nt st and ards and formats. UPO2000CEX-II provides the basic measurement functions, which can be triggered in NTSC, PAL, and other standard video formats. Press the T RIG M ENU, Pres s F1 t o sel ect t he tr igger type, s et to vide o trigger mod e with usin g the Multip urpose kno b.

The video tr igger menu descriptio ns :

Descriptions

Set any one of the CH1,CH2 as trigger source

Uses PAL format video signals

Uses NTSC format video signals

Set the video to sync and trigger on even field

Set the video to sync and trigger on odd field

Set the video to sync and trigger on all lines

Set the video to sync and trigger on specific lines

When video sync is set at specific lines, using the multipurpose knob can adjust the number of lines: For PAL/SECAM: 1~625 lines. For NTSC: 1~525 lines

Options

Video

CH1, CH2

PAL

NTSC

Even field

Odd field

All lines

Specific lines

Functions

Type

Source

rmat

Video Sync

Specific Lines

UTD2000CEX-II User Manual

Video Line Sync

Video Field Sync

3.5 Slope Trigger

When slope t rigger is s elected, tr igger occu rs when the rising or fa lling slope value matches th e value in se ttings. Press the TRIG MENU, pres s F1 to sele ct the trigg er type, se lect slope trigger mod e with usin g the Multip urpose kno b.

Slope Trigger Menu

Descriptio ns

Set any one of the Ch1, CH2 as trigger source

Pass all components of the signal

Blocks the DC components of the signal

Suppression of signal frequency above 1.23MHz

Suppression of signal frequency below 680kHz

Suppress the noise of the trigger signal, trigger sensitivity is halved.

The data acquisition stops when the signal is not triggered.

Generates a trigger, and then stops

Enters slope setting menu

Options

Slope

CH1, CH2

High freque ncy suppressio n

Low frequen cy suppressio n

Noise suppressio n

Auto

Normal

Single

Functions

Type

Sources

Trigger Coupling

Trigger Mode

Slope Setting

UTD2000CEX-II User Manual

Slope Setti ng Menu

Descriptions

Triggers with falling slope

Triggers with rising slope

When slew rate setting is smaller than signal slew rate, trigger occurs

When slew rate setting is greater than signal slew rate, trigger occurs

When slew rate setting is equal to signal slew rate, trigger occurs

Pulse width can be set in

20.0ns~10.0s range, Use the multipurpose knob to set time,

The slope of the low threshold level can be adjusted with the LEVEL knob

The slope of the high threshold level can be adjusted with the LEVEL knob

The slope of the high and low threshold level can be adjusted with the LEVEL knob

Options

Falling

Rising

20.0ns ~10.0s

Low

High

High and Low

Functions

Slope

Condition

Time Setting

Threshold

3.6 Under-r ange Trigger Trigger

The Un der-r ange Tri gger o ccurs when a pulse crosses ov er one trigg er level but not over the other one. Press the TRIG MENU button to enter the trig ger menu . Press F 1 to s ele ct tr igg er type a nd use th e Multip urpose knob to sele ct Under-r ange Trigger mod e.

Under-rang e Trigger Menu (1 ):

Descriptions

Set any one of the Ch1, CH2as a trigger signal

Pass all components of the signal

Blocks the DC components of the signal

Suppression of signal frequency above 1.23MHz

Suppression of signal frequency below 680kHz

Suppress the noise of the trigger signal, trigger sensitivity is halved.

The data acquisition stops when the signal is not triggered.

Generates a trigger, and then stops

Enters Under-range Trigger Menu (2)

Options

Under-range

CH1, CH2

High frequency suppression

Low frequency suppression

Noise suppression

Auto

Normal

Single

Functions

Type

Sources

Trigger Coupling

Trigger Mode

Under-range Setting

UTD2000CEX-II User Manual

Descriptions

Set any one of the Ch1, CH2as a trigger signal

Pass all components of the signal

Blocks the DC components of the signal

Suppression of signal frequency above 1.23MHz

Suppression of signal frequency below 680kHz

Suppress the noise of the trigger signal, trigger sensitivity is halved.

The data acquisition stops when the signal is not triggered.

Generates a trigger , and then stops

Enters Beyond-range Setting Trigger Menu (2)

Options

Beyond-range

CH1, CH2

High frequency suppression Low frequency suppression

Noise suppression

Auto

Normal

Single

Functions

Type

Sources

Trigger Coupling

Trigger Mode

Beyond-range Setting

Unde r-ran ge Trigg er Me nu ( 2)

Descriptio ns

Triggers when s et pulse wi dth is less than un der-range width

Triggers when s et pulse wi dth is greater tha n under-ra nge pulse wi dth

Triggers when s et pulse wi dth is equal to und er-range p ulse width

Use the mult ipurpose k nob to set th e pulse width time in 20. 0ns~10.0s r ange

Options

Positive Polarity

Negative Polarity

Irrelevant

＜

＞

＝

20.0ns~10n s

Functions

Polarity

Condition

Time Setting

The slope of the low thr eshold leve l can be adjus ted with th e LEVEL knob

The slope of the high th reshold lev el can be adjus ted with th e LEVEL knob

The slope of the high an d low thresh old level can be adjusted w ith the LEVE L knob

Low

High

High and Low

Threshold

3.7 Beyond- range Trigger

When beyond-range trigger is selected, a high and a low trigger levels are chosen. The trigger even t occurs wh en the input signal is h igher than the high tigger level, or lower than the low trigger level. Press the TRIG MENU button to ente r the trigger menu. P ress F 1 to sel ect tri gger t ype, us e the Multipurpo se knob to s elect to bey ond-range mode.

Beyond-ran ge Trigger Menu ( 1):

UTD2000CEX-II User Manual

Beyond-ran ge Setting Trigger Menu (2)

Options

Rise

Fall

Rise /Fall

Enter

Return

Time

20.0ns~10.0s

Low

High

High and Low

Functions

Slope type

Condition

Time setting

Trigger Level

Descriptions

Triggers when input signal enters trigger level range

Triggers when input signal leaves trigger level range

Triggers when time in trigger level mode matches the set time

Using the multipurpose knob to set the pulse width time in 20.0ns~10.0s range

The slope of the low threshold level can be adjusted with the LEVEL knob

The slope of the high threshold level can be adjusted with the LEVEL knob

The slope of the high and low threshold level can be adjusted with the LEVEL knob

Chapter 4 - Horizontal System setting

4.1 ROLL mode

When the trigger is in automatic mode and using the SCALE knob to adjust the horizontal level to slower than 50ms/div, and the oscilloscope will be in ROLL mode. At this point, the trigger system will not work, the oscilloscope will be continuous on the screen to draw the waveform of the voltage - time chart.

ROLL Mode Waveform

4.2 Extended Window

Used to enlarge waveform,the extended waveform setting cannot be slower than main waveform setting.

Extended Window display

UTD2000CEX-II User Manual

Press the bu tton HORI MENU in the co ntrol pane l. Press F1 to select th e Ext end ed Win do w . U nde r t he E xt end ed W in dow mo de, th e sc ree n i s divided into two display areas as the above picture shows. The upper part disp lays the orig ina l wav efo rms, whi ch ca n move le ft an d ri ght t hro ugh rotatin g the kno b horizo ntal PO SITIONA L or can enl arge and reduce the selected areas through rotating the knob horizontal SCALE. The lower part displays the horizontal scale waveform. Note that scale time base improves definition compare wi th the main t ime base (a s the above picture sho ws). Because the waveforms displayed by the whole lower part are corresponding to the areas selected by upper half part, rotating the knob horizontal SCALE to reduce the selected areas can improve the scale time base, namely, can improve the waveforms horizontal SCALE mult iple. Note: The max scale time b ase is 200n s/div.

4.3 Trigger Release

Trigger releas e can obser ve complex w aveforms ( such as pulse series). Relea se ti me is the ti me fo r the o scil losc ope to re-e nabl e the trigg er. In the period of release and suppression, the oscilloscope will not be triggered. For example, a set of pulse series, which is required to trigger on the first pulse, can s et the rele ase time to t he pulse wi dth. Pres s th e HOR I ME NU bu tto n to e nte r the lev el co ntr ol m enu. Use the Multipurpo se knob to s elect trigg er release .

Chapter 5 - Mathematical Operation

UTD2000CEX -II series oscillosco pe carries a variety of mathemati cal operations : Ma th: So urc e 1+ sou rce 2, s our ce 1- s our ce2 , so urc e 1* sou rce 2, source 1/ s ource2

FFT：Fast Fo urier Transform Digital F ilter

Pres s the MATH b utto n to ente r the mat hema tic al op era tion men u.Th e POS IT ION an d t he SCA LE kn obs ca n b e us ed to cha ng e t he v er ti cal posi tio n an d the ver tic al p rofile o f th e ma the mati cal ope rat ions . Un der mathematical operations, the horizonta l position cannot be indepe ndently adjusted, it will change automatically according to the analog input channel signals.

5.1 Mathema tical Function

Press MATH button, then press F1 to choose the type (m ath) Math Menu

Descriptio ns

Set any one o f the Ch1, CH2 as Math S ource 1

Source 1 + So urce 2

Source 1 - So urce 2

Source 1 * So urce 2

Source 1 / So urce 2

Set any one o f the CH1, CH 2 as Math S ource 2

Options

Math

CH1, CH2,

Ch1 CH2,

Functions

Type

Source 1

Operator

Source 2

UTD2000CEX-II User Manual

5.2 FFT Using FFT (Fast Fourier Transform) mathe matical op erations, the time domain sign al (YT) can be converte d into freq uency doma in signal. Th e following t ypes of sig nals can be e asily obse rved with u sing FFT:

Harmonic co ntent and d istortion i n measurem ent system Performan ce of noise in DC power s upply Vibration Analys is

FFT frequen cy spectrum

Press MATH button, then press F1 to select FFT to enter t he FFT menu. FFT menu

Descriptions

Set any one of the CH1,CH2 for FFT source

Use Hamming Window Function

Use Blackman Window Function

Use Rectangle Window Function

Use Hanning Window Function

Set vertical unit as linear or dB (log)

Options

FFT

CH1, CH2

Hamming

Blackman

Rectangle

Hanning

Vrms dBVrms,

Functions

Type

Source

Window

Vertical Unit

FFT Tips Signals with DC components might cause mistakes or inaccuracies in FFT calculation. In order to reduce e rror, it is adviced to set the channel to AC. In order to reduce interference or noise from isolated events, the capture mode can be s et to avera ge.

UTD2000CEX-II User Manual

(1) Select Wi ndow Funct ion

UTD2000CEX -II series provides 4 k inds of com mon window functions: Re cta ngl e : T he bes t f req uen cy res ol uti on a nd the wo rst amp li tud e

resolution are similar to the condition of no window , suitable for measuring

the follow ing wavefo rm:

a. Transien t or shor t pulse , the sig nal lev el is app roxima tely equ al to th e

before and after

b. Constant amplitude sine wave wi th similar frequency

c. random no ise with sl ow broadban d spectrum

Hanning：Compared with the rectangular window, it has better frequency

resolution, but less range. It is suitable for measuring sine, periodic and

narrow-ba nd random n oise.

Hamming：Slightly better in t he frequency resolution than the Hanning

window, suitable for measu ring trans ient or shor t pulse, la rge varian ce

of before a nd after signals.

Blackman： The best range resolution, the wo rst freque ncy resolution,

it can be used to me asur e the sing le fr eque ncy s igna l, to find higher

harmonics .

(2) Set Vertical Unit

Vertical units can be Vrms or dBVrms . Press F4 to select the desired un it.

Vrms and dBVrms show the vertical amplitude by means of logarithmic and

linear. To display the FFT spectrum in a larger dynamic range, dBVrms can

be used.

5.3 Digital Filter

Press MATH button, then press F1 to select digital fi lter to ente r the menu. Digital Fil ter Menu

Descriptions

Set filter to low pass

Set filter to high pass

Set filter to band pass

Only valid in high pass or band pass; Use Multipurpose knob to modify lower limit value

Only valid in low pass or band pass; Use Multipurpose knob to modify upper limit value

Set any one of the Ch1, CH2 for digital filter source

Independently adjust the position of the filtered waveform

Options

Digital Filter

Low Pass High Pass

Band Pass

CH1, Ch2

Functions Type

Filter Type

Frequency Lower Limit

Frequency Upper Limit

Source

vertical displacement

Horizontal displacement

UTD2000CEX-II User Manual

Digital Fil ter

Chapter 6 - Sampling System Setting

Sampling is taking ana log input an d converts into a disc rete points using analo g to d igit al co nver ter ( ADC) . Pre ss th e ACQUI RE ke y to e nter the sampling me nu. Sampling me nu

In average sampling mode，use Multipurpose knob to set average time, number can be in the range of 2n, where n is 1~13 integer

Automatic storage depth

2~512

Auto

OFF

Descriptions

Sampling in a normal manner

Sampling with peak detection

Sampling with a high resolution

Sampling in an average manner

Options

Normal

Peak High Resolution Average

Functions

Sampling Mode

Average

Storage Depth

Fast sampling

6.1 Samplin g Rate

(1) Samplin g and Sampl ing Rate When the analog signal is sampled, the sample is then converted into digital data. The digital data is collected as the waveform record , and the recorded data is then stored in t he memory.

Analog Sing al Sampling Points

UTD2000CEX-II User Manual

Sampling rate refers to the time interval between two sampling points. The maximum sam pling rate is 1 GS/s. The sam pling r ate wil l be affe cted b y the ti ming sc ale and the change of storage dep th. UTD200 0CEX-II osc illoscope s sampling rate is disp layed in real-time a t the top of the screen i n the statu s bar. The horizontal SCALE knob can be used to adjust the horizontal timebase or modify the memory depth.

(2) Low Samp ling Rate Effect

1.Waveform Distortion: Due to low sampling rate, the details of the waveform mig ht be miss ing, the s ampl ing w avef orm migh t be d iffer ent t han the actual sig nal

2.Wave Mi xing: When the sa mplin g rate is 2 ti mes lower t han th e actu al signal frequency (Nyquist frequency), the frequency of the reconstructed signal wil l be less th an the actua l signal fr equency.

3.Waveform Leakage: Due to low sampling rate, the reconstructed waveform might not r eflect the actual sign al

6.2 Acquisitio n Mode

To obtain a waveform from sampling points, press the ACQUIRE key, then press F1 key to switch the acquisit ion method s.

(1) Normal S ampling

In this acquisition mode, the signal is sampled and reconstructed with equal time intervals. Fo r most waveforms, the use of this mode can produce the best effect.

(2) Peak Sam pling

In this acquis ition m ode, th e maxim um and m inimum values of the input signal are found at e ach sampling interval, and the wavefo rm is displayed by using these values. This way, the oscilloscope can acquire and display a narrow pulse, otherwise the narrow pulse might be missed in the normal mode. Noise might be en larged in th is mode.

(3) High Res olution

In this acqu isition mo de, the osci lloscope c an reduce random noise from the input si gnal and ge nerate smoo ther wavef orms.

High Resolu tion mode t o minimize n oise from s mall signa l

(4) Average

In this acquisi tion mode, the oscilloscope obtains sever al waveforms a nd finds the average, and displays the final waveform. This method can reduce random nois e. Via changing the acquisition mode settings, the resulting waveform display will be changed. The unaveraged and the 32 times averaged waveform are displayed b elow for co mparison.

UTD2000CEX-II User Manual

32X Averaged

Note: Average a nd hig h reso lutio n uses diffe rent a verag e meth ods. T he former is multi ple sampling av erage, the latter is single sa mpling average .

Unaveraged

6.3 Storage Dep th

The stor age dep th is the number of wave forms th at can b e stored in the oscil losco pe dur ing a t rigge r acquisit ion. I t refl ects t he mem ory st orage capa cit y of the acq uis iti on. UTD 200 0CE X-I I se rie s’ st and ard is 2 5kp ts storage depth (per ch annel).

Chapter 7 - Display System Setting

You can set the display type of the waveform, display format, duration, grid brightness, and waveform brightness. Press the DISPLAY key to enter the display menu.

Display menu

Descriptions

Display level on time scale

Display Lissajous graph of CH1~CH2 waveforms

Using lines to display between samples

Displays points directly

waveform on screen refreshs with normal refresh rate

The waveform data on the screen refreshs after specified time

The waveform data on the screen is maintained until the function is off

Set the waveform brightness, Use Multipurpose knob to adjust settings

Options

Vector

Point

Full

Grid

Crosshair

Frame

Automatic

Short afterglow Long afterglow

Infinite persistence

1%~100%

Functions

Type

Format

grid

Afterglow time

Waveform Brightness

UTD2000CEX-II User Manual

7.1 XY Mode The XY mode display is als o called Li ssajous graph. When XY 1&2 are selected, the CH1 signal will be entered on the horizontal axis (X) , and the CH2 on t he verti cal axi s (Y). In X-Y mode , when CH 1 is activated, use the horizontal POSITION knob to adjust the graph horizontally. When CH2 is acti vated, use the h orizon tal POS ITION kn ob to ad just th e graph vertically.The vertical SCALE knob to be used to adjust each channel’s amplitude level. The horizontal SCALE knob can be used to adjust the time position in order to ob tain a well d isplayed L issajous g raph.

XY Display Mode

7.2 Application of XY Mode

The phase difference between the two signals of the same frequency can be easily observed by Lissajous method. The fol lo win g ch ar t gi ve s th e ob se rva ti on o f ph as e difference.

Since sinθ = A/B or C/D, theta (θ) is the angle between the two signals, the definition of A, B and C, D is shown above. We can draw a difference angle θ = ± arcsin(A/B) or θ = ± arcsin(C/D). If the principal axis of an ellipse is in quadrants I and III , then the phase angle should be in I, IV quadrant, in 0 to (π / 2) or (3 π / 2) to 2 π. If the principa l axis of a n ellipse in II, IV quadrant , then the phase angle should be (π /2) to π or π to (3 π/2). In addition, if the fr equency or phase difference of the two detect ed signal s is an int eger, the freq uency and the phase relationship between the two signals can be calculated .

UTD2000CEX-II User Manual

Chapter 8 - Automatic Measurement

UTD2000CEX -II series digital flu orescence oscillosc ope can auto matically measu re up t o 34 pa rameters. Press the ME ASUR E butt on to e nter t he automatic m easuremen t menu. Automatic M easuremen t menu

Descriptio ns

Close all Pa rameters

Pop-up a fra me with all parameters presentin g

Open/Close menu for us er defined parameters . When it is on, define all require d paramete rs with usin g the Multipu rpose knob .

Real-time d ynamicall y indicates measuremen t paramete rs

Enter advan ced measur ement menu

Turn off the feature Automatic c alculatio n of user def ined

parameters of average , max, and mi n. Only applic able when u ser defined parameters are presen t.

Restart sta tistics

Clear all me asurement

Options

Off

On/Off

Off

Parameter 1 ~5

Off

Functions

All Parameters

User Defined

Indicator

Advanced measurement

Measurement statistics

Reset statistics

Clear

Advanced me asurement menu

Descriptions

Delay measurement

Phase measurement

FRR: time between the first rising edge of source 1 and the first rising edge of source 2 FRF: time between the first rising edge of source 1 and the first falling edge of source 2 FFR: time between the first falling edge of source 1 and the first rising edge of source 2 FFF: time between the first falling edge of source 1 and the first falling edge of source 2 LRF: time between the last rising edge of source 1 and the last edge of source 2 LRR: time between the last rising edge of source 1 and the last rising edge of source 2 LFR: time between the last falling edge of source 1 and the last rising edge of source 2 LFF: time between the last falling edge of source 1 and the last falling edge of source 2

Opt ions

Functions

Measuremen t parameters

Source

edge

UTD2000CEX-II User Manual

8.1 All Paramet ers Measur ement

Press th e MEASU RE butt on to ent er the a utomat ic meas urement menu. Then press F1 to select the source of the measurement . Press F2 to select all 34 param eters.

The color of measured p arameters i s consiste nt with the current cha nnel. When "----" is shown, it indicates that the current source has no signal input, or the measu rement res ult is not va lid (too bi g or too small).

all paramet ers displa y interface

8.2 Voltage parame ters

Voltage Parameter Diagram

Vmax: Voltage at t he highest p oint with respect to GN D Vmin: Voltage at t he lowest po int with respect to GND Vtop: Highe st stable vo ltage Vbase: Lowe st stable vo ltage Middle: Mid point betwe en highest and lowest stable volt age Vpp: Vmax – V min Vamp: Vtop – Vbase Mean: Average amplitude of the waveform on scre en CycMean: Average amplit ude of a wave form in one p eriod RMS: The effec tive value. According to the energy produced by the AC signal in th e conversio n, the equivalent ener gy that the D C voltage correspond s to CycRMS: The RMS of one period Overshoot: The ratio of the difference between Vmax and Vtop Preshoot: T he ratio of t he differenc e between Vm in and Vbase Area: The pr oduct of tim e and voltag e for all poi nts on the sc reen CycArea: Th e product of time and voltage for al l points in o ne period

UTD2000CEX-II User Manual

8.3 Timing parameters

Period: The duration of one cycle o f a repetiti ve wavefor m Frequency : The recipro cal of the p eriod Rise time: The time it ta kes the wav eform ampli tude to inc rease from 10% to 90% Fall time: The time it ta kes the wav eform ampli tude to dec rease from 90% to 10% +Width: The width of a po sitive pul se at 50% amp litude

-Width: The width of a ne gative pul se at 50% amp litude +Duty: The ratio of posi tive pulse width to per iod

-Duty: The ratio of nega tive pulse width to per iod

Timing Paramet er

8.4 Delay parameters

FRR: Time between the first rising edge of source 1 to the first rising edge of source 2

FRF: Time between the first rising edge of source 1 to the first falling

edge of source 2

FFR: Time between the first falling edge of source 1 to the first rising

edge of source 2

FFF: Time between the first falling edge of source 1 to the first falling

edge of source 2

LRF: Time between the last rising edge of source 1 to the last falling edge of source 2 LRR: Time between the last rising edge of source 1 to the last rising edge of source 2 LFR: Time between the last falling edge of source 1 to the last rising edge of source 2 LFF: Time between the last falling edge of source 1 to the last falling edge of source 2

8.5 User defined parameters

Press the MEASURE button to enter the automatic measurement menu. Takes the current activation channel as the source of measurement. The user defined parameter selection interface can be chosen by F2.

User Defined Parameter Selection

Adjust the parameters with the multipurpose knob, press the Multipurpose knob button to confirm selection. For every selected parameter, a * symbol will app ear in fr ont of t he p aram ete r. Pre ss F2 to turn off user def ined parameter selection menu and the parameters will be display at the bottom of the screen. For convenien ce and immedia te view of th ese parameters, up to 5 parameters can be defined at the same time.

UTD2000CEX-II User Manual

Open the D-v alue measu rement stat istics aft er defining parameter

Chapter 9 - Cursor Measurement

The cursor c an be used t o measure th e X axis (ti me) and the Y axis (voltage) o f the selec ted wavefor m. Press th e CURSOR button to ente r the cursor m easuremen t menu.

9.1 Time Measurement

Press the CURSOR key to enter the cursor measurement menu, then press F1 to select the type to time.

• Press F2 to set the pattern to inde pendent.

• The Multipurpose knob c an adjust t he vertical cursor AX, press the

multipurp ose knob to switch to cu rsor BX.

The measure d values ar e shown in th e upper lef t corner of the wavefor m display are a. The value o f BX-AX is t he time measurement, a nd 1/|BX-AX| is the recip rocal of ti me. For a period ic signal, if AX and BX are se t at the risi ng edge of a djacent cycles, the n BX-AX is the signal’s p eriod, and 1/|BX-AX| i s the frequency. The voltage value can a lso be displ ayed at cur sor’s cur rent posit ion. That is AY, BY, and BY-AY.The M ultipurpo se knob can be used to ad just the BX and AX positions when settin g is set to t race mode wi th using th e F2 key.

9.2 Voltage Measur ement

• The me thod for vo ltage meas ureme nt is simil ar to the me thod f or ti me measurement, only that the vertical cursor becomes the horizontal cursor.

• Press th e CUR SOR k ey to ente r the curs or me asur emen t men u, th en press F1 to select the type as volt age.

• Press F2 to set the pattern to inde pendent The Multipu rpose knob can be used t o adjust th e horizontal cursor AY on the screen, press the M ultipurpose knob to s witch to cursor BY. The value of BY-AY is the voltage measurement (V). W hen the setting is set to trace mode with using the F2 key, the Multipurpose knob can adjust both AY and BY at the same time.

UTD2000CEX-II User Manual

On the upper left corner of the display area, BY and AY are represented by the current posi tion of the curs or BY and AY respectively. BY-AY indicates the voltage difference b etween the two cursors.

Chapter 10 - Storage and Callback

With the sto rage function, you can save the os cilloscope's setting s, waveforms, and screen imagees to t he oscillo scope's internal or ex ternal USB storage devices, and recall the saved settings or waveforms anytime. Press the STORAGE key to e nter the st orage funct ion settin g interface. UTD2000CEX-II series oscilloscope supports FAT format USB storage devices. It is not com patible wi th NTFS form at.

10.1 Storag e Setting and Callback

Press STORAGE button, then press F1 to select the type of settings, then to enter the storage me nu Settings fo r the storage menu.

Descriptions

Data will be saved on the oscilloscope

Data will be saved on USB drive

Saves settings to selected disk

Call back previously saved settings, returns the oscilloscope to the previously saved setting state

Options

Storage Setting

CH1,CH2

DSO

USB

Functions

Type

Source

Disk

Save

Callback

Remarks Oscillos cope can only select US B device wh en U disk or o ther exter nal storage de vices are p lugged in. Callback only works when previo usly saved disk and the file name a re consisten t, or else it will fail t o load.

10.2 Waveform S torage and Callback

Press the STORAGE button , then pres s F1 to set th e type of wa veform , then to ente r waveform storage men u. Waveform stora ge menu.

Descriptions

Select waveform storage source from any one of CH1,CH2

When Save is pressed, waveform will be saved to the oscilloscope

When Save is pressed, waveform will be saved to external USB device

Saves the waveform to selected disk

Enter the REF menu for the details

Options

Waveform Storage

CH1, CH2

DSO

USB

Functions

Type

Source

Disk

Save

Callback

UTD2000CEX-II User Manual

After the waveform is saved, you can use the REF key for callback. Press the REF key t o enter the waveform ca llback men u. Waveform Callb ack Menu

Descriptions

When Save key is pressed, waveform will be saved to the oscilloscope

When Save key is pressed, waveform will be saved to external USB device

Callback previously saved waveform and display on screen

Close current REF waveform

Options

RefA、RefB

DSO

USB

Functions

Type

Disk

Callback

Clear

After callb ack, the Re f waveform w ill be disp layed in the lower left corner, inclu ding timi ng sc ale a nd am plitude sh ift. At this poin t you can u se the vertica l and hor izontal contro l knob to adjust t he ref w aveform ’s positi on, time base, a nd amplitu de shift.

10.3 Screen Copy

The Prt Sc key can be used t o stor e the cu rrent scree n in BM P forma t to an external USB storage device. Th e bit map c an be open ed di rect ly on the PC. This function can only be used when external USB storage devices are connect ed.

Chapter 11- Auxiliary Function Setting

Press the UT ILITY key to e nter the au xiliary fun ction sett ings menu. Auxiliary f unction se tting menu ( 1)

Descriptions

Enter system configuration page

Enter interface configuration page

Enter pass test page

Enter wave record page

Enters Auxiliary function setting menu (2)

Functions

System configuration

Interface configuration

Pass test

Wave record

1/3

Options

Auxiliary f unction se ttings menu (2)

Descriptions

Enter AUTO strategy page

Enters Auxiliary function setting menu (3)

Functions

Measuremen t unit

AUTO strategy

2/3

Options

V/A

Note: The frequency mete r is a count er for trigg er events. The frequenc y meter is val id for edge or pulse wid th, but is n ot valid for the other t rigger type .

Auxiliary f unction se ttings menu (3)

Descriptions

Enter recorder page

Enter waveform generator page

Set up frequency of reference waveform

Enter oscilloscope software update page

1Hz/10Hz/100Hz/ 1kHz/10kHz/100kHz

Functions

Recorder

waveform generator

Square wave output

System Upgrade

Options

UTD2000CEX-II User Manual

11.1 System configuration

System conf iguration menu (1)

Descriptions

press the Select key to start the self calibration

prompting the system name and version

press the Select key to clean up

Enter time setup page

Enter next page

Functions

Self calibration

System information

Clean information

Time setup

Options

System conf iguration menu (2)

Descriptions

pop-up default dialog box, press the select key to start

Use Multipurpose to adjust the screen contrast ratio, Max 100

Select whether to open the screen saver, if opened, the screen will be closed when the set - time arrives, Press any key to restore.

Return UTILITY root directory

Functions

Factory settings

Contrast ratio

Screen protection

Return

Close 1 minute 5 minutes 10 minutes 30 Minutes

Options

Time menu setting

Descriptio ns

Control dis play

Selected vi a the F2 but ton, use Multipurpo se key to ad just

Selected vi a the F3 but ton, use Multipurpo se key to ad just

Selected vi a the F4 but ton, use Multipurpo se key to ad just

Make the mod ification to be valid

Functions

Time display

Minute &hou r

Date&month

Year

Confirm

Options

On/Off

11.2 interface configuration

Descriptio ns

Control the display /h ide time of the s ide bar men u

Use Multipu rpose key t o modify the d isplay bri ghtness of the grid, the highes t 32

Options

Simplified Chinese English Traditional Chinese

Manual 2s, 5s, 10s, 20s

Functions

Language

Menu displa y

Grid bright ness

Return

UTD2000CEX-II User Manual

Descriptions

The test function stops after it reaches a specified pass count number

The test function stops after it reaches a specified fail count number

Stop condition setting

Use the multipurpose knob to select stop condition threshold

Return to previous menu

Options

Pass Count

Fail Count

>=、<=

Functions

Stop Type

Condition

Threshold

Return

11.3 Pass Test

The pass (fail) test is by using a template to detect whether the input signal satisfies t he templat e requireme nts.

(1) Functio n Introduc tion Press UTILITY, then press F5 to enter the secondary menu, then press F2 to enter the test menu. Pass Test Menu (1)

Descriptions

Close Pass Test

Open Pass Test

Set the Pass/Fail interface on the rear panel : output pulse signal and produce buzzing when “failure”

et the Pass/Fail interface on the rear panel : output pulse signal and produce buzzing when “pass”

Set the source of the pass test

Turn off display information

Turn on display information

Enter Pass Test Menu (2)

Options

Open

Fail

Pass

CH1、CH2

Open

Functions

Allow Test

Output

Source

Display Inf o

Pass Test Menu (2)

Descriptions

Disable Pass Test

Enable Pass Test

Enters Stop Settings Menu

Enters Template Settings Menu

Return to Pass Test Menu (1)

Functions

Operation

Stop Setting

Template Setting

2/2

Options

Open

After opening the pass test, you need to set the stop settings and template set tin gs bef or e yo u ca n p erf or m th e t est fun ct ion . O the rw ise you 'l l be prompt ed "Fu nctio n is Di sabled ". The s top se tting and te mplate setti ngs menus are sh own as belo w.

Stop settin gs menu

UTD2000CEX-II User Manual

Template settings men u

Descriptions

Select a channel CH1,CH2 with horizontal and vertical tolerance as a template

Use the multipurpose knob to select the horizontal tolerance

Use the multipurpose knob to select the vertical tolerance

Create template with above conditions

Return to previous menu

Options

CH1,CH2

1~255

Functions

Reference Waveform

Horizontal Tolerance

Vertical Tolerance

Create Template

Return

(2) Application Example Iinput 1kHz, 3V square wave from CH1, observe the result of the pass test:

Pass Test

The test function will run continously and stop once 10 fail tests have been reached, or the user manually suspends the test (when operation is set to close).

① To enter the test menu: Press UTILITY, then press F5 to enter auxiliary menu second page, then press F2 to enter the test menu.

② Set the test: press F1 to enable the test set ③ Set the source: press F3 to set the source to CH1 ④ Template settings: press F5 to enter the next page, then press F3 to enter

the template settings menu. Press F1 to select the reference waveform to CH1; press F2 and F 3, set the l evel thresho ld with the multipurpose knob to 10, set the vertical threshold to 5, then press F4 to create a template, press F5 to return to the test menu ⑤ Stop settin g: pre ss F2 t o ente r stop setting menu , set the stop type to pass count, and set the t hreshold to 10 wit h multipu rpose knob, press F5 to return to the test menu ⑥ Set the output conditions: press F5 to return to the first page of the test menu, set the output condition to ‘fail’ using the F2 key

⑦ Open displa y info rmati on: pr ess F4 to set displ ay inf ormat ion to open ⑧ Start test: press F5 to enter the second page of the test menu, then press

F1 to open the operation to start the test. See figure below:

11.4 waveform record

Press UTILITY, then press F5 to enter the secondary menu, then press F1 to enter the waveform record menu . Waveform record menu

UTD2000CEX-II User Manual

Descriptio ns

Close wavef orm record function

Enter wavef orm record menu

Enter wavef orm record operation

Options

Setup

Operation

Functions

Waveform record oper ation

Press F1 to s elect the waveform rec ord operat ion and set waveform record para meters

Waveform recor d menu

Descriptions

Set up the record parameters

Select the record channel

Record the actual acquisition depth waveform

Recording screen waveform

Set the delay between each frame while playing

Show maximum number of frames that can be recorded (maximum number of frames will change according to the current storage depth)

Options

Setup

CH1,CH2,CH1&CH2

Normal

Screen

10ms~1000s

4000/8000

Functions

Record operation

Resource

Length of record

Interval of record

End frame

After setti ng up the record parame ter , Press F1 to select the wavefo rm record oper ation and p erform the w aveform re cord .

Waveform recor d operatio n menu :

Descriptio ns

Recording, playback, stop, etc..

Playback of recorded w aveform

Stop record ing or play ing back wav eform

Perform rec ording wav eform

Quickly perform recording waveform (unable to view the current record waveform)

Options

Operate

Functions

Record oper ation

Playback

Stop

Record

Quick recor d

11.5 AUTO strateg y

Auto strate gy opratio n menu :

Descriptions

allow if automatically modifing channel settings

allow if automatically modifing sample settings

allow if automatically modifing trigger settings

allow if automatically identifying the closed channels

Options

Lock / open

Functions

Channel set ting

Sample sett ing

Trigger settin g

Signal reco gnition

UTD2000CEX-II User Manual

11.6 Recorder Recorder op eration me nu

Descriptio ns

Pay back the record dat as

Stop record ing

Start to rec ord

Enter recor d setting m enu

Functions

Run

Stop

Record

Setup

Options

Recorder se tting menu

Descriptio ns

When Playba ck, Use Mul tipurpose key to contr ol step siz e

Use Multipu rpose key t o adjust the time , Ma x up to 1000 s

the playba ck mode Pio nt or Frame

Options

Point by poi nt frame by fra me

On /Off

Functions

Coarse / fin e adjustment

Interval

Playback mo de

Cycle playb ack

11.7 Waveform generator

Waveform generator menu (1)

Descriptio ns

Turn on /off AWG output

To select the base wave form

Enter the pa rameter me nu setting

Options

On/Off

sine wave square wave Sawtooth wa ve Triangular wav e Pulse wave

Functions

Output

waveform

Setup

Waveform gener ator menu ( 2)

Descriptions

Use Multipurpose key to adjust signal frequency

Use Multipurpose key to adjust signal amplitude

Use Multipurpose key to adjust signal Shifting

Modify Pulse width for pulse signal, Modify duty cycle for square wave signal, Modify symmetry for sawtooth wave

Functions

frequency

amplitude

Shifting

Pulse width /duty cycle/ symmetry

Options

11.8 System Upgrade

This series oscilloscope can use USB disk to upgrade the software to give users a more convenient and flexible experience. To use this feature, please follow the f ollowing s teps: ① Press UTI LITY to ente r the a uxil iary f unct ion me nu, press F 1 to vi ew system information, access the machine's model number, software, and hardware v ersion inf ormation.

UTD2000CEX-II User Manual

② Software upgrade file can be found on UNI-T website or UNI-T distributors. Software file is consistent with the machine model and hardware version. Softw are ve rsion highe r than the cu rrent versi on is stored i n the r oot directory of U disk. ③ Inse rt US B dis k, pr ess U TILI TY to enter the a uxil iary func tion menu , press F1 to sele ct syste m to be up graded . Press SE LECT to co nfirm

④ Upgrade process takes different time based on different contents to be upgraded. After the upgrade, syetem will automatically restart in order to complete the upgrade. No te: plea se m ake sur e th at t he p ower supply i s on througho ut t he upgrade process in order to avoid the incomplete upgrade. If the system is not completely upgraded, it might not be able to restart.

Chapter 12- Other Function Keys

12.1 Automatic Setting

Automatic settings will according to the input signal, choose appropriate time base file s, range profile, and triggering parameters so tha t the w aveform automatically properly displays on the screen. Press the AUTO key to enable automatic settings. ①. Automatic setting is suitable for setting up simple single frequency signals, and not for complex combination waves. ②. The signal frequency is not less than 50Hz, the amplitude is not less than 30mVpp, and the square wave duty cycle is more than 5% ③. Only opened channel can be used for automatic setting

12.2 Run/Stop

When the RUN/STOP key is pressed, a green light will be on, indicating the RUN status. When the key is pressed again and a red light appears, indicating the STOP status. The RUN state enables the oscilloscope to be in continuous acquisition, the upper screen will display AUTO. During the STOP state, the oscilloscope stops collecting data, and the upper screen displays STOP. Press RUN/STOP key to switch run/stop state.

12.3 Factory Setting

By pressing the DEFAULT button, you can quickly restore to factory settings. UTD2000CEX-II series oscilloscope factory settings are as below:

UTD2000CEX-II User Manual

Factory Set ting

1V/DIV

Off

Coarse

1×

Off

Function

CH1

Vertical Displacement

Coupling

Bandwidth Limit

Lattice

Probe

Reverse

Bias Voltage

CH2

MATH、REF

System

Vertical

System

Off 1μs/div

100.00ns Edge

CH1 Rising

Auto

Extended Wi ndow

Horizontal Timebase Horizontal Displacement

Hold Time Trigger Type

Source Slope Type

Coupling Mo de

Trigger Mode

Horizontal

System

Trigger

System

Vector

100ms

50%

60%

Waveform

Off

Off, Clears all measurem ents

Off Keep curren t

Manual

1kHz

100% Trigger

Type

Format

Duration Time Grid Bright ness

Waveform Brigh tness

Storage Type

Frequency M eter

Measuremen ts

Cursor Language

Menu Displa y

Square wave output

Backlight b rightness

Output sele ction

Display

Other Syste m

Chapter 13- System prompt and Troubleshooting

13.1 System Informati on Descript ion

Operati on at li mit：In the curren t state, adjust ment has reache d the li mit and cannot continue. When the vertical scale knob, timing knob, level shift, vertical sh ift or trig ger reaches adjustmen t limit, the display wi ll show up. USB device is not inserted: When the USB storage device is not connected to thoscill oscope. Load Failed：When the location did not store the setting or waveform needed.

UTD2000CEX-II User Manual

13.2 Trouble shooting

(1) When the power butt on is presse d and the os cilloscope is black sc reen: ① Check the power suppl y connecti on ② Make sure t he power sw itch at the b ack of the o scilloscope is open, press the f ront panel power key an d confirm g reen light is present ③ If there is a sound, it indicates t hat the osc illoscope is activate d. Try the following operation : press DEFAULT key, then press F1 key, if device return to n ormal, it means backli ght bright ness is too low

④ After completing the above steps, res tart the osc illoscope . ⑤ If you stil l cannot solve this pro blem, plea se contact U NI-T and let us

serve you.

(2) After signal acqusition , wavform d oes not appear on displ ay:

① Check if th e probe is c onnected to the signal test point ② Check if th e signal li ne is connec ted to the a nalog channel input ④ Check the i nput signa l of the anal og channel and that channel is ope n ⑤ Make sure t hat the pro be is connec ted to the c ompensation piece and

check whet her the probe is normal

⑤ Check to se e if there i s a signal to be detecte d ⑥ Press AUTO button for signal re-acquisi tion

(3) The measured amplitu de value is 10 times larger or smal ler than th e actual val ue: Make sure t hat the probe attenuat ion coeffici ent matche s the attenuation of the prob e used. (4) There is a waveform bu t not stabl e: ① Check the t rigger source in the tr igger menu and confirm that the si gnal and channe l are consi stent

② Check the tri gger t ype, normal s ignal s shoul d use e dge trigger m ode. Stable wav eform will be displaye d only by se tting to the correct tr igger mode ③ Try changing the trig ger coupling to h igh frequency or low frequency in order to su ppress or remove noise caused by i nterference

(5) Pressin g the RUN/S TOP key and no wa veform is d isplayed: ① Check whether the trigger me nu’s trigger met hod is set to normal, and whether the trigger level has exceeded the waveform range. If it exceeded, center the tri gger le vel or s et the t rigger mode to auto wi th the AUTO key ② Press the AUTO but ton to complete the abo ve setting s

(6) Waveform re fresh rate is too slow: ① Check whether the acquisition mode is set to average, and the number of average is too big ② You can s peed up th e ref resh rate by red ucin g the aver age t imes or select oth er methods such as norm al samplin g

14- Te

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ical

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UTD2000CEX-II User Manual

1mV /div~ 20 V/di v(1-2 -5 base )

≤5 Hz（on BNC）

Sampling or average sa mpling meth od) <5 mV: ±4% ≥5 mV: ±3%

DC, AC, GND

1MΩ ± 1% // 20pF ± 3pF

1m× 2m× 5m× 10m× 20m× 50m× 100m× 200m× 500m× 1× 2× 5× 10× 20× 50× 100× 200× 500× 1000×

, , , , , , , ,

, , , , , , , , , ,

CAT I 300 Vrms CAT II 100 Vrms Transient Overvoltage 1000 Vpk

, ,

Input

Input Coupl ing

Input Imped ance

Probe Attenuation Coefficient

Maximum Input Voltage

Vertical Resolution

Vertical Scale

Vertical Displacement Range

Bandwidth Limit (typical)

Low Frequency Response (AC coupling, -3dB)

DC Gain Accuracy

5ns/div ~ 50s/div (1-2-5 base)

≤±(50+ 2×Service Life)ppm

Pre-trigger (Negative Delay): ≥1 Screen Width Post-trigger Positive Delay 1 s~50 s ( ):

YT XYROLL, ,

Timing Scale

Timing Accuracy

Delay

Timebase

Horizontal

Vertical

Model

Bandwidth

Rise Time (Typical)

Channels

≤±4% (Sampli ng or average sampling me thod)

DC to maximu m bandwidt h：>40 dB

Teal-time Sampling , Equivalent sampling

1GS/s(Single Channel) 500MS/s(Dual Channel), ,

Sampling, peak detection, high resolution, envelope, and average

After all channels reach N times sampling, N times in 2,4,8,16,32,64,128,256,512

sin(x)/x

Auto, 28kpts, 280kpts, 2.8Mpts, 28Mpts

Sampling

Real-time S ampling Ra te

Acquisitio n Mode

Average Value

Waveform Inter polation

Storage Dep th

DC Offset accuracy

Channel Sep aration

UTD2000CEX-II User Manual

UTD2072CEX -IIUTD2102CEX -II

Internal: Center of the screen ± 15 grids External: ± 6V

Automatic, normal, si ngle

100ns~10s

1.23MHz

680kHz

Reduce Nois e Waveform (10 mV/div～20 V/div, DC co upling trigger sen sitivity r educed by 2 t imes）

≤1div

Trigger

Trigger Level R ange

Trigger Mode

Trigger Holdoff Range

High Freque ncy Suppre ssion

Low Frequen cy Suppres sion

Noise Suppr ession

Trigger Sensit ivity

Edge Trigger

Edge Type

Rising, fal ling, any

Pulse Width Trigger

Pulse Condi tion

Polarity

Pulse Width Range

>、<、><

Positive, n egative pu lse width

20ns ~ 10s

Under-rang e Pulse Trigger

Pulse Condi tion

Polarity

Pulse Width Range

Positive, n egative

20ns~10s

Voltage between cursors（△V） Time between cursors（△T） Frequency（Hz）（1/△T）

Voltage and time at waveform point

Allows auto display of cursor

Manual

Trace Mode

Indicator

Cursor

Supports NTSC, PAL，rows range is 1~525 (NTSC) and 1~625 (PAL/SECAM)

Video Trigger

Signal System Frequency Range

Measure

Positive slope (greater than, less than, specified range)

Negative slope (greater than, less than, specified range)

20ns~10s

Slope Condition

Time Setup

Slope Trigger

Beyond-range Pulse Trigger

Beyond-range type

Trigger Position

Beyond-range time

Rising, falling, any

Entering, exiting, time

20ns~10s

UTD2000CEX-II User Manual

The maximum value, min imum value, peak value , top value, a mplitude, period aver age value, average value, cycl e RMS, RMS, area , perio d area, overshoot, preshoot, rising ,fal ling ,freq uency, period, ris e time, fal l time, puls e width, po sitive pulse width , negative pulse width , burst pul se width , positive du ty cycle ,n egative dut y cycle , ph ase, FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF, etc. total quant ity of 34 me asurement p arameters

Auto Measuremen t

Displays 5 a t the same t ime

Screen or cu rsor

Measuremen t Statistics

Frequency meter

Average value, maximum v alue, mini mum value, standard de viation an d the number of measure ments

Hardware 6 b it frequen cy meter

Measuremen t Number

Measuremen t Range

Split screen; time base can be adjusted independently

Low pass, Hi gh pass, Ba nd pass

Mathematic al Operati ons

Waveform Calculatio n FFT Window Type

FFT Display

FFT Vertical Scale

Digital Fil ter

Internal (2 0), Extern al USB

External US B

Storage

Setting

Waveform

Bitmap

8-inch TFT LCD

800 horizon tal ×480 ve rtical (RGB )

160,000,00 0

Auto / Short afterglow / Long after glow / Infi nity

1s, 2s, 5s, 1 0s, 20s, manual

Point, Vector

Display

Display typ e

Display Res olution

Display Col or

Duration

Menu Durati on

Display Type

Standard：USB -OTG, Pass/Fail inter face Optional：USB -LA Logic analyz er (UT-M09) Waveform Genra tor (UT-M11)

DMMs

Interface

Standard/ Optional

General Technical Specifications

Probe compe nsated sig nal output

3Vp-p

10Hz, 100Hz , 1kHz(def ault), 10kH z,100kHz

Output Voltage

Frequency

UTD2000CEX-II User Manual

Power Suppl y

Power Suppl y Voltage

Frequency

Fuse

100V～240VACrms

50Hz～60Hz

3A，T level，250V

Environmen t

Temperature Range

Cooling

Humidity range

Altitude

Operational：0℃～+40℃

Non-Operational：-20℃～+70℃

Forced cooling fan

Operational：below +35℃ ≤90％Relative humidity Non-operational：+35℃～+40℃ ≤60％Relative humidity

Operational：Below 3000m； Non-operational：Below 15,000m

Mechanical Specifica tions

Size

Weight

336mm(W)×1 64mm(H)×1 08(D)mm

3.5kg

Maintenanc e Period

Recommend t o perform c alibration once a year

Chapter 15 - Appendix

Appendix A – Accessories and Options

UTD2072CEX -II

UTD2102CEX -II

Power line m eets local country sta ndard

USB data cab le

2 sets of pas sive probe s (100MHz)

Quick guide

CD (Include s manual an d applicati on softwar e)

Standard accessorie s

MODE

For all acce ssories (s tandard and optional) , please or der at UNI-T l ocal dealers

Appendix B – Maintenance and Cleaning

(1) General Maintenan ce Do no t st ore or pl ace the instrum ent and liqu id c rys tal disp lay in d irec t sunlight. Caution: do not spray liquid or solvent on the instrument or probe.

(2) Clean Refer to the operating conditions of the instrument and probe and perform frequent checks. Clean the outer surface of the instrument according to the following s teps: Please use a soft cloth to wipe the d ust off probe s and the in strument. When cleaning the LCD screen, pleas e pay attention an d protect the LCD screen. Please disconnect the power supply, then with a damp but not dripping soft cloth, wipe the instru ment. Do not use any chemical abrasive cleaning agent on the instrument or probes.

UTD2000CEX-II User Manual

Warning: Please confirm that the instrument is completely dry before use, to avoid damage caused by electrical short circuit caused by moisture.

Appendix C Warranty Overview

UNI-T ( Uni- Trend Techno logy ( Chin a) Ltd .) en sures the p roduc tion and sale o f pro duct s, fr om au thor ized deal er’ s del iver y date of th ree y ears , without any defects in materials and workmanship. If the product is proven to be defective within this period, UNI-T will repaire or replace the product in accordan ce with the detailed pr ovisions o f the warra nty. To arrange for repair or acquire warranty form, please contact the nearest UNI-T sales and repair de partment. In addition to permit provided by this summary or other applicable insurance guarantee, Uni-T does not provide any other explicit or implied guarantee, including but not limited to the product trading and special purpose for any implied warranties. In any case, UNI-T for indirect, special, or consequential loss does no t bear any r esponsibil ity.

Appendix D Contact Us

If the use of this product has cause d any incon venience, you can cont act Uni-Trend Technology (China) Limited directly i n mainland China: Between 8:3 0am to 5:30 pm Beijing t ime, Frida y to Monday Products fr om regions outside of C hina, plea se contact your local U NI-T dealer or sa les center. Many of the p roducts th at support U NI-T have an e xtended th e warranty period plan and a calibration period, please contact your local UNI-T dealer or sales cen ter. To obtain the addre ss list of our servi ce cente rs, pleas e visit ou r website at URL: http ://www.uni-tre nd.com

UTD2000CEX-II User Manual

UNI-T UTD2000CEX-II Series, UTD2102CEX-II, UTD2072CEX-II User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual