Unit utd2000 User manual

UTD2000 Series
Digital Oscilloscope
User Manual
www.uni-trend.com

UTD2000 Series User Manual
2
Preface
Dear custumer,
Thank you for choosing this 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 and Declaration
Copyright Information
UNl-T Uni-Trend Technology (China) Co., Ltd. All rights reserved.
Trademark Information
UNI-T is the registered trademark of Uni-Trend Technology (China) Co., Ltd.
Document Version
UTD2000 -20190520-V2.00
Statement
UNI-T products are protected by patent rights in China and other 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.

UTD2000 Series User Manual
3
If this product is sold or assigned by the original purchaser to a third party within three
years of purchase, the new owner should note that warranty is available for a period of
three years from the day the original purchaser acquired the product from Uni-T or an
authorized dealer. The probe, other accessories and fuses are not covered by warranty.
If any genuine defect is found during the valid warranty period, Uni-T has the option
to repair the defective product without any charge for parts or labor, or replace it with
anotherproduct(atthediscretion ofUni-T).Uni-Tmayuseparts,modulesand replacement
products that are brand new or repaired to a good-as-new standard. All old parts, modules
and products that are removed during replacement become properties of Uni-T.
In this User Manual, “customer” means an individual or entity vested with the rights
hereunder. To enjoy the warranty service, the “customer” must report any defect to Uni-T
during the valid warranty period and make appropriate arrangement to allow servicing. The
customer should pack the defective product in a container and deliver it to a maintenance
centre specified by Uni-T. The customer should also prepay all freight cost and provide a
copy of the original sales receipt issued to the original purchaser. If the product is to be
delivered to an address within the country where the maintenance centre operates, Uni-T
shall pay the cost of returning the product to the destination, all freight, custom duty, tax
and other costs will be paid by the customer.
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:
a) Any repair damage caused by the installation, repair, or maintenance of theproduct
by non UNI-T service representatives.
b)Anyrepair damagecaused by improperuseor connectionto an incompatibledevice.
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 andits 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.

UTD2000 Series User Manual
4
General Safety Overview
This instrument strictly complies with the safetyrequirements for electronic measuring
instrument 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.
Avoid fire and personal injury:
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 afterpower
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 byUNI-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 dry

UTD2000 Series User Manual
5
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: This operation may cause damage to the product and devices connected to the
product.
The following symbols may appear on the product:

UTD2000 Series User Manual
6
Preface
The Manual introduces information related to operation of digital storage oscilloscope
of UTD2000 series user manual. The Manual comprises the following chapters:
Chapter 1 Introduction Guide
Chapter 2 Vertical channel setting
Chapter 3 Horizontal system setting
Chapter 4 Trigger system setting
Chapter 5 Sampling system setting
Chapter 6 Display system setting
Chapter 7 Automatic measurement
Chapter 8 Cursor measurement
Chapter 9 Storage and callback
Chapter 10 Auxiliary function setting
Chapter 11 Other function keys
Chapter 12 Applicaion example
Chapter 13 System prompt and troubleshooting
Chapter 14 Technical specification
Chapter 15 Appendix
UTD2000 Series Digital Storage Oscilloscope contains the following 4 models:
Series
Model
Band Width
Sampling
Rate
UTD2000
UTD2072CL
70MHz
500MS/s
UTD2152CL
150MHz
500MS/s
UTD2102CEX+
100MHz
1GS/s
UTD2202CEX+
200MHz
1GS/s
UTD2000 series provide the users with front panels with simple operation and clear
functions to perform all the basic operations. Scale and position knobs of each channel
provide visual operations that are suitable for user habits as the traditional instrument.
Users may be able to master it without spending plenty of time learning and understanding
operations of any UTD2000 series DSO. In order to accelerate adjustment and facilitate
measurement, the users can directly press AUTO key and the instrument will then display
applicable waveform and gear position settings.
Apart from easy to use, UTD2000 series DSO also has high performance indexes and
powerful functions required for faster completion of measurement tasks. User can observe
faster signals on UTD200 series DSO by high-speed real time sampling and equivalent
sampling. Clear LCD and mathematical operation functions make it easier for users to
observe and analyze signal problems in a faster and clearer way.
From the following parameter features, you can understand how this series of DSO

UTD2000 Series User Manual
7
can satisfy your measurement requirements.
Two analog channels.
High resolution LCD display 800×480 resolution.
Support plug and play USB storage equipment or be capable of communicating with
computer via USB storage equipment.
Automatic waveform and state settings
Waveform saving and replay feature
Delicate window extension function and precise analysis on waveform details and
overview
Automatic measurement of 34 waveform parameters
Automatic cursor tracking measurement function
Unique functions of waveform recording and playback.
Built-in FFT software function
Multi-waveform mathematical operation function (including: addition, subtraction,
multiplication and division)
Edge, Video, Slope, Pulse width,Alternating trigger and other functions
Multi-language menu selection
Help Information in Chinese & English.

UTD2000 Series User Manual
8
Contents
Guaranty and Declaration....................................................................................................2
General Safety Overview.....................................................................................................4
Safety Terms and Symbols .................................................................................................5
Preface. ..............................................................................................................................6
Contents...............................................................................................................................8
Chapter I Introductions....................................................................................................10
1.1 General Inspection...............................................................................................10
1.2 Function Inspection..............................................................................................10
1.3 Front and Rear Panel...........................................................................................12
1.4 Display..................................................................................................................13
1.5 Automatic Settings of Waveform Display .............................................................13
1.6 Introduction to The Vertical System .....................................................................13
1.7 Introduction to The Horizontal System.................................................................14
1.8 Introduction to The Trigger System......................................................................15
Chapter II Vertical System ..............................................................................................16
2.1 Setting coupling channel......................................................................................17
2.2 Setting channel bandwidth Limited......................................................................18
2.3 Setting probe Rate ...............................................................................................18
2.4 Vertical Volts/Div adjustment setting....................................................................19
2.5 Settings of waveform inverting.............................................................................19
2.6 Mathematical operation function..........................................................................20
2.7 FFT spectral analysis...........................................................................................21
Chapter III Horizontal System.........................................................................................23
3.1 Horizontal control..................................................................................................23
3.2 Explanation of nouns............................................................................................23
3.3 Window extension................................................................................................24
3.4 Trigger hold-off time adjustment...........................................................................24
Chapter IV Trigger System .............................................................................................26
4.1 Edge trigger..........................................................................................................26
4.2 Pulse width trigger................................................................................................27
4.3 Video trigger.........................................................................................................29
4.4 Alternating trigger.................................................................................................30
4.6 Explanation of nouns............................................................................................32
Chapter V Acquire System..............................................................................................34
Chapter VI Display System.............................................................................................36
6.1 XY Mode...............................................................................................................36
Chapter VII Measurement Parameters...........................................................................37
7.1 Measurement Menu .............................................................................................37

UTD2000 Series User Manual
9
7.2 Voltage Parameter................................................................................................38
7.3 Time parameter....................................................................................................38
Chapter VIII Cursor Measurement..................................................................................40
Chapter IX Storage and Load System............................................................................41
9.1 Setup storage and load........................................................................................41
9.2 Waveform storage and load.................................................................................42
9.3 Bit map storage and load.....................................................................................43
9.4 Screen copy..........................................................................................................43
Chapter X Utility System.................................................................................................44
10.1 Pass/Fail.............................................................................................................45
10.2 Recorder.............................................................................................................46
Chapter XI Other funtion botton......................................................................................48
11.1 AUTO..................................................................................................................48
11.2 RUN/STOP .........................................................................................................48
11.3 Help Menu...........................................................................................................49
11.4 Upgrade program................................................................................................49
Chapter XII Applicaion example......................................................................................50
Example 1: Measuring simple signals........................................................................50
Example 2: Observing the delay caused by a sine wave signal passes through the
circuit ..........................................................................................................................50
Example 3: Acquiring single signals...........................................................................51
Example 4: Reducing random noise of signals..........................................................52
Example 5: Using the cursors for measurement........................................................53
Chapter XIII System Prompts and Trouble-shooting......................................................55
13.1 Definitions of System Prompts...........................................................................55
13.2 Troubleshooting..................................................................................................55
Chapter XIV Technical Information.................................................................................57
Chapter XV Appendix......................................................................................................62
Appendix A Accessories of UTD2000 Series.............................................................62
Appendix B Maintenance and Cleaning.....................................................................62
Appendix C Warranty .................................................................................................62
Appendix D Contact Us..............................................................................................63

UTD2000 Series User Manual
10
Chapter I Introduction
This chapter introduces what users should pay attention to, front & rear panels, user
interface and instruction of built-in system when using UTD 2000 series DSO first time.
1.1 General Inspection
After purchasing a new UTD2000 DSO, we recommend you to inspect the instrument
according to the following steps.
(1) Inspect whether there are damages caused by transportation
In case of severe damages to packing box or foamed plastic mat, you should replace
immediately.
(2) Accessories inspection
For provided accessories details, description has been made in annex A “Accessories”
of this user manual. Please check whether there are shortages in the accessories. If you
found shortage or damages of accessories, please contact the UNI-T distributors
distributing the product or local offices of UNI-T.
(3) Check the complete instrument
In case of damages to the appearance of instrument, abnormal operation or failure to
pass the performance tests, please contact the UNI-T product distributors or local UNI-T
offices.
If the instrumentis damaged due to transportation, please payattention to keeping the
package, notify transportation department and UNI-T product distributors and UNI-T will
make arrangement for repair or replacement.
1.2 Function Inspection
Conduct a fast function inspection to verify whether the instrument is in normal operation.
Please take the steps as follows:
(1) Power on:
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 comes with the
oscilloscope or any power supply line that meets the host country standards. Press the
power switch button on the top of the oscilloscope.
(2) Switch on the instrument and Check:
Press the power switch button , the oscilloscope then will show a boot animation, and it
will enter the normal interface afterwards.
(3) DSO accessing to signal
Connect the probe BNC terminal to the BNC of channel 1 of DSO, connect the probe to
“Probe Compensation Signal Tip”, connect the alligator clip of probe to the “Ground
Terminal”. The output of the probe compensation signal tip is: the range is about 3Vpp, the

UTD2000 Series User Manual
11
frequency defaults at 1kHz.
(4) Function Check
Press AUTO (auto setting) button, square wave appears on the display screen, the wave
range is about 3Vpp and the frequency is 1kHz. Go back to step 3 and check other
channels in a same way. If the actual displayed waveform is different from above figure,
please go to next step “Probe Compensation”.
(5) Probe Compensation
When connecting the probe with any input channel for the first time, it is required to make
adjustment for this item, matching the probe with input channel. Probe without being
compensated and corrected will lead to measurement error or mistake. In case of
adjustment of probe compensation, follow the following steps:
Set the probe menu attenuation coefficient as 10×, place the switch on the probe
at 10×and connect DSO probe with CH1. If hook-shape head of probe is used,
please make sure that it contacts the probe. Connect the probe to the probe
compensator of DSO, connect the grounding clamp to the “Grounding terminal” of
probe compensator, turn on CH1 and press AUTO.
Observe displayed waveform
Figure 1-5 Probe Compensation and Correction
If screen displays “under-compensation” or “over-compensation” for waveform as
shown in above figures, use screwdriver with nonmetal handle to adjust the
Over-compensation
Correct compensation
Under-compensation
Probe Compensation Siganl Tip
Ground Terminal

UTD2000 Series User Manual
12
variable capacitance on the probe until screen displays “correct compensation” for
waveform as shown in the above figure.
Warning: In order to avoid electric shock when measuring high voltage with probe,
please ensure that the insulation lead of the probe is in good condition and do not
contact the metal part of the probe when connecting high pressure power supply.
1.3 Front and Rear Panel
Figure 1-3 Front Panel
Figure 1-4 Rear Panel
Display area
USB host interface
Control Menu button
Multifunctional Knob
Function menu button
Vertical control
Horizontal control
Analog channel input
Trigger control
Probe compensator
and grounding interface
USB Device
LAN
Pass Test Output

UTD2000 Series User Manual
13
1.4 Display
(1) Display description
(2) Soft button
Press any soft button to activate corresponding menu. Symbols below may display on the
menu:
: There is next menu.
: There is dropdown memu.
: The menu has two options.
: User can adjust by multifunctional knob.
: Press this menu to pop up virtual digital keypad.
1.4 Automatic Settings of Waveform Display
UTD2000 series DSO has automatic setting function. According to input signals,
automatically adjust the vertical deflection factor, scanning time base and trigger mode
until the most appropriate waveform is displayed. For automatic setting application, the
frequency of the measured signal is required to be ≥20Hz.
Apply automatic setting:
(1) Connect measured signal to signal input channel.
(2) Press AUTO key. DSO will automatically set its vertical deflection factor, scanning
time base and trigger mode. If further careful observation is required, adjustment can be
conducted again after automatic settings until the waveform display reaches required
optimum effect.
1.5 Introduction to the Vertical System
As shown in the figure below, there are a series of keys and knobs in the vertical
Trigger state display
Channel 1 mark
Channel 2 mark
Main time base setting
Horizontal trigger area
Time of center scale line
Waveform display window
Vertical scale coefficient of channel
Soft button menu corresponds
to different buttons

UTD2000 Series User Manual
14
control area. Practices below will gradually guide you to get familiar with the controlling of
the vertical system.
Figure 1-6 Vertical ControlArea on the Panel
(1) Vertical POSITION: vertical position knob, user can change the current vertical
position of channel waveform, the vertical position value will display
on the baseline cursor area. Press this knob to get the dispayed channel position
back to the vertical center.
If the coupling mode of channel is DC, user can fast measure the DC component
of signal by observing the difference between waveform and signal ground.
If the coupling mode of channel is AC, the DC component in the signal will be
filtered, which helps to displayAC component of signal with higher sensitivity.
(2) Vertical SCALE: Change vertical setting and observe the change of status
information. User can confirm any change of vertical scale level by the information
displayed on the status bar. Rotate the vertical scale knob to change the vertical
scale level of “VOLTS/DIV”, and then the scale level of channel on the stauts bar
will be changed accordingly. Press CH1, CH2, MATH to display operation menu,
symbols, waveform and scale level status of corresponding channels. Double click
CH1, CH2, MATH to turn off the channel.
1.6 Introduction to the Horizontal System
As shown in the figure below, there is one key and two knobs within the horizontal
control area. Practices below will gradually guide you get familiar with the setting of
horizontal time base.
Figure 1-7 Horizontal ControlArea on the Panel

UTD2000 Series User Manual
15
1. Use horizontal SCALE knob to change gearposition settings of horizontal time base
and observe the changes of state information. Turn horizontal SCALE knob to change
“SEC/DIV” time base gear position, and you can find that corresponding changes have
taken place in the time base gear position display of corresponding channel in the status
bar. Horizontal scanning rate steps up in the multiple of 1, 2 and then 5 from 2ns to 50s.
2. Use horizontal POSITION knob to adjust the horizontal position of the signal in the
waveform window. Horizontal POSITION knob controls the trigger position of the input
signal. When applying to trigger position and turning horizontal POSITION knob, it is
possible to observe the horizontal movement of waveform along with POSITION knob
turning.
3. Press HORI MENU to enter Zoom menu. On this menu, press F1 to turn on time
extension, press F1 again to turn off time extention and go back to main time base. Users
can also set trigger holdoff time on this menu.
1.7 Introduction to the Trigger System
As shown in Figure 1-8, there is one knob and four keys in trigger menu control area.
Practices below will gradually guide you to be familiar with the setting.
Figure 1-8 Trigger ControlArea and Trigger Menu on the Panel
(1) Turn trigger level knob LEVEL to change trigger level. Please refer to the trigger
marking on the screen to indicate the trigger level line. The trigger level line should move
up/down accordingly. The trigger level value will change accordingly.
(2) Press TRIG MENU to change the trigger setting.
Press F1 to select “Edge” trigger.
Press F2 to select CH1 for “Source”.
Press F3 to select AC for “Trigger coupling”.
Press F4 to select AUTO for “Trigger mode”.
Press F5 to select RISING for “Slope type”.
(3) Press SET TO ZERO to set vertical and horizontal position of waveform to zero,
then the position of trigger level will be on the vertical center of the range of trigger

UTD2000 Series User Manual
16
signal.
(4) Press DEFAULT to display “Factory Setting” window, press SELECT to execute
factory setting, press MENU to stop factory setting and close the window.
(5) Press HELP to display “HELP” window, press HELP again to close the window.
Chapter II Vertical System
UTD2000 series DSO provides two analog input channels, each channel has an
independent vertical menu. Each channel for UTD2000 series DSO can be set
independently through the vertical system menu. After pressing CH1 or CH2 function key,
the system shall display function menu of CH1 or CH2 channel. See Table 2-1 below for
description. Table 2-1 Channel Menu (Page 1)
Function Menu
Setting
Description
Coupling
AC
Block the DC component of input signal.
DC
Pass through DC andAC components of input signal.
GND
Display grounding level (Input signal is not disconnected).
BW Limit
20MHz
Limit bandwidth to 20MHz to reduce high-frequency component of detected
signal.
Full BW
Turn off bandwidth limit, the DSO runs through full bandwidth.
Volts/Div
Coarse
Set vertical scale of current channel based on 1-2-5 scale.
Fine
Fine Volts/Div is within the range of coarse Volts/Div setting, set the vertical scale
of current channel based on 1% step of current Volts/Div scale.
Probe
0.01×
0.02×
...
100×
1000×
Based on probe attenuation coefficient, you select a value to ensure the
consistency of vertical scale reading and actual displayed waveform so that you
don’t need to calculate by multiplying the probe attenuation coefficient.
Next page
——
Go to next page
Invert
ON
Activate reverse function of waveform. Waveform will be displayed reversely.
OFF
Waveform is displayed normally.
Table 2-2 Channel Menu (Page 2)
Function Menu
Setting
Description
Invert
OFF
Display normal waveform
ON
Display waveform invert
Unit
V,A
Display the unit of current channel range
Back to
——
Go back to previous page

UTD2000 Series User Manual
17
2.1 Setting coupling channel
If the measured signal connected to the CH1 channel is a sinusoidal signal containing
DC component. If your press F1 to select as AC coupling, to set the CH1 into AC coupling
mode. Then the DC component of the measured signal is blocked. Waveform display is
shown in figure below.
Figure 2-1 Blocked DC Component of Signal
Press F1 to select as DC coupling, you should be able to see both the DC and AC
components of measured signals at CH1 channel as shown in figure below.
Figure 2-2 Simultaneous Display of Signal DC and AC Components
If you Press F1 to select as GND, to set CH1 to connect to the internal ground of the
instrument, both DC and AC components of the input signal are blocked. And, waveform
display is shown in figure below.
Figure 2-3 Simultaneous Blocking of Signal DC and AC Components

UTD2000 Series User Manual
18
2.2 Setting channel bandwidth Limit
Assuming that the input signal is a 40MHz sinusoidal signal connected to CH1. Press
CH1I and then press F2 to set BW Limit as Full Bandwidth, the channel bandwidth
becomes full bandwidth, there will be not any bandwidth limited to CH1. And, you can see
all the high-frequency component in measured signal as waveform displayed is shown in
the figure below.
Figure 2-4 Waveform Display When Setting Bandwidth Limit as OFF
Press F2 to set the BW Limit as 20MHz, the noises or high-frequency component
over 20MHz in measured signal shall be attenuated, waveform display shown in figure
below.
Figure 2-5 Waveform Display When Setting Bandwidth throttling as ON
2.3 Setting probe Rate
In order to cooperate with attenuation coefficient setting of probe, it is required to set
the probe attenuation coefficient in channel function menu. If the probe attenuation
coefficient is 10:1, the probe coefficient in channel function menu shall be set to be 10×
and vice-versa.
BW Limit Mark

UTD2000 Series User Manual
19
Figure 2-6 Probe Attenuation Coefficient Setting in Channel Menu
2.4 Vertical Volts/Div adjustment setting
Adjustments of vertical deflection factor V/div gear position can be set to coarse
adjustment and fine adjustment.
For coarse adjustment, V/div can be adjusted in step of multiple of 1, 2 and 5, the V/div
range is 1mV/div～20V/div.
Fine adjustments refer to changing deflection factor with smaller stepping within the
currentverticalgearpositionrange.Vertical deflectionfactorcan beconsecutivelyadjusted
within all vertical gears.
Figure 2-7 Coarse and FineAdjustment of Vertical Deflection Factors
2.5 Settings of waveform inverting
Waveform inverting can be set by F5 function button. The measured input signal will
be displayed with 180 degrees difference. Please see Figure 2-8 for a non-inverted
waveform and Figure 2-9 for an inverted waveform.
Figure 2-8 Vertical Channel Inverted Settings (Invert: OFF)

UTD2000 Series User Manual
20
Figure 2-9 Vertical Channel Inverted Settings (Invert: ON)
2.6 Unit
Press UNIT to set the unit as “V” or “A”, the default unit is V. After the unit is set, the unit
on channel status tag will change accordingly.
2.7 Mathematical operation function
Display results of CH1 & CH2 waveform mathematic operation (+、–、×、÷).
Figure 2-10 Math Operation
Table 2-3：Math Menu
Function Menu
Setting
Description
Type
Math
Mathematic operation (+、–、×、÷)
Source1
CH1
You can select signal source1 as CH1
CH2
You can select signal source2 as CH2
Operator
+
Source1+Source2
–
Source1–Source2
×
Source1×Source2
÷
Source1÷Source2
Source2
CH1
You can select signal source1 as CH1
CH2
You can select signal source2 as CH2