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

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.

Copyright Information

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

3

4

5

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

DC

AC

Ground

Full
bandwidth

20M

Coarse
Adjustment

Fine
Adjustment

Off

On

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

DC

AC

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

DC

AC
High frequency

suppression

Low frequency
suppression

Noise
suppression

Auto

Normal

Single

Functions
Type

Sources

Trigger
Coupling

Trigger
Mode

Pulse
Width
Setting

Next Page

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.

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

Enter settings page

Enter Trigger Setting Menu (2)

UTD2000CEX-II User Manual