PN:110401105098X
MAY.2018 REV. 4
Introduction
Dear users:
Thank you for purchasing UNI-T product. To operate the instrument correctly, please
read this Operating Manual carefully and especially its “Safety Notice” before use.
Afer reading it, you are suggested to keep the manual properly. Please keep it with the
instrument together or place it in an accessible location for future use.
General Safety Overview
The instrument is designed and manufactured strictly
according to “Safety Requirements of Electronic
Measuring Instruments” (GB4793) and IEC61010-1
Safety Standard . It conforms to “Insulation Overvoltage
Standard” (CAT 600V) and Safety Standard with
Pollution Level You are expected to know the following
safety precaution measures to avoid personal injury or
product damage or any other product connected to it.
Please use the product according to the regulations so
as to avoid the possible damage.
Only personnel with professional training can execute
maintenance procedure to avo
id fire or personal
injury.Appropriate power wires should be used and
special power wires must be approved by the state.
Reliable grounding of products: The product is
grounded by ground conductor of power supply.
Ground conductor must be connected to earth to
avoid electric shock. Please guarantee correct
grounding before connecting input/output terminal of
the product.
Correct connection of oscillograph probe: Earth wire
of probe is the same to earth potential. Please do not
connect earth wire to high voltage.
Review of rated values of all terminals: Please refer to
all rated values a
nd marks onthe product surface to
avoid fire or excessive current shock. Please refer to
product manual before connecting products so as to
know details of rated values.Do not open cover plate
of machine box: It is not allowed to start or operate the
product when opening external cover or panel.
Ⅱ
Ⅱ
Correct plug-in/out: Please do not plug in/out when
connecting probe or testing conduits to voltage
source.
Operating Manual for UTD2000/3000
Operating Manual for UTD2000/3000
Usage of appropriate fuse: It is only allowed to use
fuse type and rated indicator designated by the
product.
To avoid exposed circuits: It is not allowed to touch
exposed connector or element after power supply.
Operation is not allowed if there is any doubt for
product trouble: Please consult qualified maintenance
personnel to inspect the product if there is any trouble
doubt.
It has to maintain appropriate ventilation. It is not
allowed to operate in wet locations. It is not allowed
to operate in combustible and explosive
environment. It has to keep product surface clean
and dry.
Terms in the manual: The following terms may be
seen in the manual:
Terms for products: The following terms may be
Danger: It refers to direct injury near the mark.
Warning: It refersto potential injury near the mark.
Note: It refers to potential danger for the product
and other properties.
Warning: Warning statement means the
conditions and behaviors that may endanger lives.
Note: Notice statement means the conditions
and behaviors that may cause other property
damage
Protective
ground terminal
Ground terminal
for chassis
Ground terminal
for testing
Caution!
Refer to manual
High voltage
Safety Terms and Symbols
Product symbol: Following symbols may be shown
on the product surface.
Operating Manual for UTD2000/3000
Operating Manual for UTD2000/3000
The manual is about operation information of OPERATING MANUAL FOR UTD2000/3000 digital storage
oscillograph. The manual includes the following chapters
Chapter 1: User Guideline: It is to introduce functions of digital storage oscillograph easily and provide
installation guidelines.
Chapter 2: Instrument Setup:Operation methods of OPERATING MANUAL FOR UTD2000/3000 digital
storage oscillograph.
Chapter 3: Application example: Examples to solve various measurement problems
Chapter 4: System Prompt andTroubleshooting
Chapter 5: Appendix: Technical Indicators
Appendix B
: Fittings of OPERATING MANUAL FOR UTD2000/3000 series digital storage oscillograph
Appendix C: Maintenance and Cleaning Maintenance
Preface
Th e manual includes 3 serie s of digital storage oscillograph as follows. Detailed models are shown in the
following for m:
Operating Manual for UTD2000/3000
UTD2 C/UTD3025C
025
UTD2 C/UTD3042C
042
UTD2 C/UTD3062C
062
UTD2 C/UTD3082C
082
UTD2 C/UTD3102C
102
UTD2 C/UTD3152C
152
UTD2 C/UTD3202C
202
UTD2 CE/UTD3042CE
042
UTD2 CE/UTD3062CE
062
UTD2 CE/UTD3082CE
082
UTD2 CE/UTD3102CE
102
UTD2 CE/UTD3152CE
152
UTD2202CE/UTD3202CE
UTD2025CL
UTD2052CL
UTD2052CEX
UTD2072CEX
25MHz
40MHz
60MHz
80MHz
100MHz
150MHz
200MHz
40MHz
60MHz
80MHz
100MHz
150MHz
200MHz
25MHz
50MHz
50MHz
70MHz
250MS/s
500MS/s
500MS/s
500MS/s
500MS/s
500MS/s
500MS/s
1GS/s
1GS/s
1GS/s
1GS/s
1GS/s
1GS/s
1GS/s
1GS/s
250MS/s
500MS/s
UTD2000C/3000C
UTD2000E/3000E
UTD2000 L
UTD2000 EX
UTD2000/3000
Series
Model
Band wi dth
Real-time
UTD2102CEX
100MHz
1GS/s
Operating Manual for UTD2000/3000
UTD2000/3000 series digital storage oscillograph
provides simple front panel with clear functions to
users for all basic operations. Scale and position of
various channels can provide intuitional operation
to meet usage habits of traditional instruments.
Users can use it skillfully without learning and
being familiar with operation for a long time. Users
can also press AUTO key directly to accelerate
adjustment and facilitate measurement.
Appropriate waveform and gear setup can be
shown on the instrument panel.
UTD2000/3000 series digital storage oscillograph
also has high-performance indicators and powerful
functions to fulfill measurement tasks quickly
besides easy usage. Quicker signals can be
observed by UTD2000/3000 series digital storage
oscillograph by real-time sampling of 500MS/s (or
1GS/s) and equivalent sampling of 25GS/s (or
50GS/s). Itcan capture and analyze waveform
easily by powerful trigger and analysis capacity.
Users can also observe and analyze signal
problems quickly and clearly by clear LCD display
and mathematical calculation function. We can see
that such ser
ies of digital storage oscillograph can
meet your measurement requirements by following
performance characteristics:
Double analog channels
High-resolution colorful LCD display system with
resolution of 320 240 or 800 480
To support plug and play USB storage instrument
to communicatewith computer
Automatic waveform and status setup
Waveform,setup, bitmap storage, waveform and
setup reoccurrence
●●●●●
× ( × )
●●●●●●●●●●●
●
×,÷)
, ;
.;“ ”;
“ ”
Elaborate view window extension function for
delicate analysis of waveform details and profile
Automatic measurement of 28 kinds of
waveform parameters
Automatic cursor tracing and measurement
function
Unique waveform recording and playback
functions
Embedded FFT
Multiple mathematical calculation functions
(including +, -, for waveform
Edge, video, pulse width andALTTRIG
functions
Multi-language menu display
Fittings ofUTD2000/3000 series digital storage
oscillograph
2 probes of 1.2m 1:1/10:1 please refer to
manual of probe Fittings of probe details so as
to meet EN61010-
031:2008 standard
1 power wire to meet national standards
1 Operating Manual
1 Product Warranty
USB connecting wire: UT-D06 or UT-D05
Communication control software for
UTD2000/3000 series oscillograph
：
Operating Manual for UTD2000/3000
Item
Elementary understanding ofTrigger System...........................................
Page
...........................................................................................
..........................................................................................
.......................................................................................
.............................................................
Elementary understanding of Vertical System................................................
Elementary understanding ofHorizontal System...........................................
General Safety Overview
Preface
Setup of Vertical System.........................................................................
Setup of Horizontal System......................................................................
Setup of Trigger System...........................................................................
General Inspection
Function Inspection
Probe Compensation
AutomaticSetup of Waveform Display
Chapter 1: User Guideline.............................................................................
......
55899111415162731
Operating Manual for UTD2000/3000
Contents
Chapter 2: Instrument Setup
.......................................................................
1
Page
....................................................................................
...........................................................................................
Setup of Auxiliary Functions..........................................................................
....
Automatic Measurement...............................................................................
.....
Cursor Measurement..................................................................................
.......
...................................................................................................
.
.....................................................
..............
...................................................................
Setup of Display System
Storage and Callout
Operation Key
Chapter 3: Application Examples
Example 1: Measurement of Simple Signals
Example 2: Delay Observation of Sine Signals by Circuit..............................
Example 3: Capture of Single Signal.............................................................
Example 4: Reduction of Random Noise for Signals......................................
Example 5:Application Cursor Measurement................................................
Example 6:Application of X-Y Function
Example 7: Trigger of Video Signals
.........................................................
................................................
485055606870727273757678798144
Operating Manual for UTD2000/3000
Item
Setup of Sampling System
.................................................................
Item
Page
........................................................
.............................................................................
.....................
......................................................
................................................................................................
.........................................
Examp
Examp : Usage of Upgrading Procedure of U disk
System Prompt Information
Troubleshooting
Appendix A: Technical Indicators.......................................................
Appendix B: Fittings of UTD2000/3000 Series Digital Storage Oscillograph...
Appendix C: Maintenance and Cleaning Maintenance................................
Example 10: Usage of Storage Function
Chapter 4: System Prompt and Troubleshooting
Chapter 5: Technical Indicators............................................................
Example 8: Pass/Fail Detection
Example 9
888991
91
104
10583848588
Operating Manual for UTD2000/3000
Operating Manual for UTD2000/3000
Chapter 1: User Guideline
△△△
Function inspection
Elementary understanding of vertical system
Elementary understanding of horizontal system
UTD2000/3000 series digital storage oscillograph is
a small and handy desktop product. Basic test can be
done by providing convenient front panel to facilitate
operation for users.
UTD2000/3000 series are to provide simple front
panel with clear functions to users for basic
operation. Panel also includes knob and function key.
Knob functions are similar to those of other digital
storage oscillograph.
The chapter is to show execution of following steps
General inspection
5 keys in a row in the right side of display panel are
menu operation keys. (They are defined as F1 to F5
keys from top to b
ottom.)You can also set different
options for current menu by them. Other keys are
function keys. You can enter into different function
menus or gain specific function application directly
by them.
：
Elementary understanding of trigger system
Please know front operation panel firstly after
getting UTD2000/3000 series digital storage
oscillograph. The chapter is to introduce operation
and functions of front panel for
UTD2000/3000products so as to be familiar with
usage within the shortest period.
General inspection
△△△
Automatic setup of waveform display
Probe compensation
△
1
Operating Manual for UTD2000/3000
2
5.7 inch front panel of UNI-T
-
probe compensation
signal output
vertical control
horizontal control
Operation
controls
multi-purpose
knob controller
common
menu
trigger control
EXT TRIG INPUT
analog signal input
interface
Operating Manual for UTD2000/3000
3
probe compensation
signal output
vertical control
horizontal control
Operation
controls
multi-purpose
knob controller
common
menu
trigger control
EXT TRIG INPUT
analog signal input
interface
7-inch front panel of UNI-T
Operating Manual for UTD2000/3000
4
display of horizontal trigger position
time display of central scale line
vertical scale
coefficient of
display channel
display setup of
main time base
waveform
display window
Menu varies with
different function
keys.
mark of
channel 2
display of trigger status
mark of
channel 1
Interface display diagram of digital storage oscillograph (i.e. UTD2000L series)
Operating Manual for UTD2000/3000
5
General inspection
Function inspection
It is suggested to inspect the instrument by
following steps when getting a new UTD2000/3000
series digital storageoscillograph.
1. To check if there is damage due to transportation
or not.
Please replace carton or foaming plastic protection
cushion with severe damage instantly.
2. Please inspect fitting details and shown it in
“Fittings of UTD2000/3000 series digital Storage
Oscillograph” shown in the manual. You can check
if there are deficient fittings or not by referring to it.
Please contact UNI-T distributor or local agent if
there are deficient or damaged fittings.
3. Please ins
pect the entire machine and contact UNI-T
distributor or local agent for damaged appearance,
abnormal operation or failing to pass performance test.
Please pay attention to packages and report to
transportation department and UNI-T distributor if
machine damage is causedby transportation.
1. Connect the power supply
You can supply power to the machine and voltage is AC
100V to AC 240V. Frequency is 45Hz to 440Hz. It has
to press [UTILITY] menu and [F1] for self-correction
after power supply 30 minutesafter operation of hot
machine so that digital storage oscillograph operates
under the
best status. As shown in Figure 1 4, please
enter into next page and press [F1] to call out ex-factory
setup.
－
UNI-T will arrange maintenance or replacement.
Please carry out once fast function inspection to
check if the machine operates normally or not.
Please operate according to following steps:
Warning: Please confirm safety grounding of digital
storage oscillograph to avoid dangers.
2. Signal access of digital storage oscillograph is
double-channel input for UTD2000/3000 series
digital storage oscillograph.There is also 1 EXT
TRIG INPUT channel. Please connect signals
according to following steps:
(As shown in Figure 1-5), connect probe of
digital storage oscillograph to CH1 input terminal
and set attenuation ratio switch on probe to 10×Á
Figure 1 5 Setup of attenuation ratio switch on
probe
－①．
Operating Manual for UTD2000/3000
6
Figure 1-4
power switch
function button
F1
MEASURE
CURSOR
DISPLAY
ACQUIRE
STORAGE
UTILITY
MULTIPURPOS E
SELECT
AUTO
CH1
CH2
F2
F3F4F5
POSITION
SCALE
SCALE
VOLTS DIV
/
VVm
POSITION
SEC DIV
/
SSLEVEL
MATH
FORCE
HELP
MENU
TRIG
MENU
HORI
VERTICAL
CH1
TRIGGER
HORIZONTAL
CH2
SET
Operating Manual for UTD2000/3000
Operating Manual for UTD2000/3000
7
②.
In digital storage oscilloscope to set the probe
attenuation factor. The attenuation coefficient of
vertical gear ratio change instruments, which
makes measurement resultsSetup method of
attenuation coefficient of probe is as follows to
show amplitude of measured signals correctly.
Please press
Figure 1-6 Setup of deflection coefficient of probe
on digital storage oscillograph
F4 key for menu display of 10×
Connect probe and grounding clip to
corresponding connection ends then press [AUTO]
button.As shown in Figure 1-7, square wave (1kHz,
about 3V and peak value) can be displayed within
several seconds. It has to inspect CH2 by the same
method then press [OFF] function button so as to
power off CH1. It has to press [CH2] function button
to power on CH2 and repeat the second and third
steps.
③.
Proberation
Figure 1 7
－
Operating Manual for UTD2000/3000
Probe compensation
It needs to adjust it when connecting probe to any
input channel for the first time so that probe can be
appropriate to input channel. Probe without
compensation correction can also bring in
measurement tolerance or error. Please operate
according to following steps for adjustment of
probe compensation:
1. To set probe menu attenuation coefficient to
10× and place probe switch to 10× then connect
digital storage oscillograph probe to CH1. Please
guarantee reliable contact to probe. It has to
connect probe end to signaloutput connector
2ofprobe compensator then connect grounding clip to
earth wire connector of probe compensator. It also
has to power on CH1 and press [AUTO].
3. Adjust variable capacitance on the probe by
screwdriver of non-metallic handle for waveform
display of “insufficient compensation” or
“excessive compensation” shown in above figure
until “correct compensation” for waveform display
on the screen as above.
Warning: Please guarantee perfect insulation
conduits of probe and do not contact metallicpart
of probe when connecting to HV source to avoid
electric shock of probe during HV measurement.
.
Observation of displayed waveform
8
Exceeding
compensation
Correct
compensation
Insufficient
compensation Figure 1 8
－
Compensation correction of probe
Operating Manual for UTD2000/3000
9
Automatic setup of waveform display
UTD2000/3000 series digital storage oscillograph
has automatic setup functions. It can adjust vertical
deflection coefficient,scanning time base and
trigger mode automatically according to input
signal for the most appropriate waveform display.
Frequency of measured signals shall be more than
or equal to 50Hz and duty cycle shall exceed 1%
according to automatic setup requirements.
1. Connect measured signals to signal input
channel.
2. Press [AUTO] button so that digital storage
oscillograph can set vertical deflection coefficient,
scanning time base and trigger mode
automat
ically. They can be adjusted again after
careful observation and automatic setup so that
waveform display can realize the best effect.
As shown in the following figure, there are a series
of keys and knobs in vertical control area. Please
introduce usage of vertical setup gradually as
follows.
Automatic setup
Elementary understanding of vertical system
：
5.7-inch vertical
control panel of screen
7-inch vertical control
panel of screen
Figure 1 9 Vertical control area on the panel
－
Operating Manual for UTD2000/3000
10
1. Use vertical position knob so that middle display
of waveform signal in the window. Vertical display
position of signal can be controlled by vertical
position knob.
Ground mark moves vertically with waveform when
rotating vertical position knob.
Measurement knack
You can observe difference between waveform
and signal ground to measure DC component
of signal quickly if adopting DC channel
coupling mode. DC components in the signal
will be filtered if adopting AC coupling mode
. You can also display AC component of signal
by higher sensitivity conveniently.
Vertical position of double analog channelsshall be
restored to short-cut key of zero pointnamely,
SET TO ZERO.
The key is to return vertical displacement/horizontal
displacement/hold off position to zero point
(or middle point).
Of which: UTD2000L /2000EX series will trigger
electric level Return to 50% of position.
2 Alter vertical setup and observe alternation of
status information. You can determine variation of any
vertical gear by status bar below waveform window.
Vertical gear of “volt/grid” can be altered by rotating
vertical scale knob to show corresponding variation for
channel gear display which corresponds to status bar.
User can press [CH1], [CH2] , [MATH] and [REF] to
display operation menu, mark, and waveform and
gear status information of corresponding channels.
.
Operating Manual for UTD2000/3000
11
Users can also press [OFF] key to close currently
selected channels for UTD2000C/3000C and
UTD2000E/3000E oscillograph. They can also
click on CH1, CH2 and MATH keys twice to close
corresponding channels for UTD2000L/2000EX
oscillograph.
As shown in following figure, there is 1 key and 2
knobs in horizontal control area. Please be familiar
with setup of horizontal time base gradually as
follows:
Elementary understanding of horizontal system
Horizontal control
panel of 5.7-inch
Horizontal control
panel of 7-inch
Figure 1 10 Horizontal control area on the panel
－
Operating Manual for UTD2000/3000
1. Use horizontal SCALE knob to alter horizontal
time base gear then observe alternationof status
information. To rotate horizontal SCALE knob to
alter “s/div” time base gear so as to show
corresponding variation of time base gear display
for corresponding channels of status bar.
Horizontal scanning speed steps from 2ns/div
s/div by way of 1 mode.
Note: Horizontal scanning time base gear varies
for UTD2000/3000 series digital storage
oscillograph due to different models.
﹡～－ －
50 2 5
2. Use horizontal POSITION knob to adjust
horizontal position of signals in waveform window.
To use horizontal POSITION knob to control trigger
displacement of signals. Horizontal movement of
waveform with knob can be observed when rotating
horizontal POSITION knob for application for
trigger displacement.
3. Please press [MENU] button for 5.7-inch
oscillograph (and press [HORI MENU] button for 7-
inch oscillograph) to display Zoom menu. Please
press [F3] to open view window extension under
this menu then press [F1] to close view window
extension and return tomain time base. Hold off
time can be set under this menu.
12
Operating Manual for UTD2000/3000
13
Trigger point can be restored to vertical middle
point quickly by short-cut key of [SET TO ZERO] so
as to restoring displacement of trigger point to
horizontal zero point short-cut key. Users can also
adjust horizontal position of signal in waveform
window by rotating horizontal knob.
Term explanation
Trigger point: It refers to position of actual trigger
point by comparing with middle point of storage
instrument. Users can move trigger horizontally by
rotating horizontal POSITION knob.
Hold off: It refers to interval to start up trigger
circuit again.
Hold off time can be set by rotating
multi-purpose
knob controller.
As shown in Figure 1 there is 1 knob and 3
(or 2) keys in control area of trigger menu. Please
be familiar with setup of trigger system gradually as
follows:
POSITION
Elementary understanding of trigger system
－
,
11
5.7-inch screen 7-inch screen
Figure 1-12
Trigger menu
Figure 1 Trigger menu on the panel
－
11
1. To user trigger level knob to alter trigger level
and instruct trigger level line by seeing trigger mark
on the screen so that it moves vertically with knob
rotation. Variation of trigger level in lower part of
screen can be observed when moving trigger level
at the same time.
2. (As shown in Figure 1-12,) TRIGGER MENU can
be used to alter trigger setup.
User can press [F1] key to select“edge” trigger.
n trigger signal amplitude.
i
4.
To press FORCE button: To produce 1 trigger
signal forcefully for mainly application for normal
and single trigger mode.
Operating Manual for UTD2000/3000
14
They can press [F2]key to select“trigger source”
to CH1.
They can press [F3] key to set “gradient” of edge
type to ascending.
They can press [F4 ]key to set “trigger mode” to
automatic. They can also press F5 key to set
“trigger coupling” to AC.
They can press [50%] button for 5.7-inch oscillograph
and press [SET TO ZERO] key for 7-inch oscillograph.
It also has to set vertical middle point of trigger level
2.
Operating Manual for UTD2000/3000
15
Chapter 2: Instrument Setup
By now, you have been familiar with operation of
vertical control area, horizontal control area and
trigger system menu for UTD2000/3000 series digital
storage oscillograph preliminarily. You should be
familiar with setup of digital storage oscillograph by
menu operation by introduction shown in previous
chapter. It is suggested to read Chapter 1 if you have
not been familiar with above operation and methods.
The chapter is mainly to introduce following themes
Set trigger systems of [TRIGGER LEVEL],
[MENU], ]50%] and] FORCE];
Set sampling mode of [ACQUIRE];
It is suggested to read the
chapter carefully to know
many measurement functions for UTD2000/3000
and system operation method.
：■■■■■■■■■■
Set vertical systems of [CH1], ]CH2],] MATH],
]REF] , ]OFF] ]VERTICALPOSITION] and
]VERTICAL SCALE];
Set horizontal systems of ]MENU] or ]HOR
MENU], ]HORIZONTAL POSITION] or
[HORIZONTALSCALE];
Set displaymode of [DISPLAY];
Store and call-out for [STORAGE];
Set auxiliary system of [UTILITY];
Automatic measurement of [MEASURE];
Cursor measurement of [CURSOR];
Use execution buttons of [AUTO] and
[RUN/STOP];
Operating Manual for UTD2000/3000
Setup of vertical system
CH1 and CH2 channels and setup
Every channel has its own vertical menu. Every
item can be set individually according to different
channels. As shown in Form 2-1, the system can
display operation menu of CH1 or CH2 channel by
pressing CH1 or CH2 function key.
16
110100
1000
×××
×
Setup
Description
Function menu
Coupling
ACDCTo obstruct DC component
of input signal.
To cut off input signals by AC
and DC components of input
signals.
Grounding
Bandwidth
limitONOFF
To limit band width to 20MHz
so as to reduce display noise.
Full band width
Volt/grid
Coarse
tuning
To set vertical deflection
coefficient for coarse tuning
by 1-2-5 system. To refine
within setup scope of coarse
tuning for fine tuning so as to
improve vertical resolution.
Fine
tuning
Probe
To select one value according
to probe attenuation
coefficient to keep correct
vertical deflection coefficient.
There are totally 4 kinds,
namely, 1 , 10 , 100
and 1000 .
× × ×
×
Reverse phase
ON
OFF
To realize reverse direction
function for waveform;
To display waveform normally.
Form 2-1
1
Measured signal is a sine signal with DC component
by taking exerting signal to CH1 channel as an
example.
To press F1 to selectAC and AC coupling mode. DC
component contained by measured signal will be
obstructed. Waveform display is shown in following
figure.
Press F1 to DC to pass through DC and AC
components of measured signals of CH1 channel.
Waveform display is also shown in following figure:
Figure 2 2 Synchronous display of DC andAC
components of signal
Press F1 to select grounding and set channels to
grounding mode. DC andAC components
contained by measured signals will be obstructed
.
Waveform display is shown in following figure:
displayed on the screen.
Setup of channel coupling
：
17
Operating Manual for UTD2000/3000
Figure 2 Jammed DC component of signal
－
1
Setup of
AC coupling
DCcoupling
setup
Operating Manual for UTD2000/3000
(Note: Input signal still shall be connected to
channel circuit under such mode although
waveform is not
Figure 2 3 Synchronous obstruction of DC and
AC components of signal
－
18
Groundcoupling
setup
2.
Setup of channel bandwidth limit
：
Input one sine signal of about 40MHz for CH1 as an
example. It has to press [CH1] to open CH1 channel
then press [F2] to set bandwidth limit to OFF.
Channel band width is full band width to pass
through high-frequency components contained by
measured signal. Waveform display is also shown
in following figure.
Figure 2 Waveform display when closing
bandwidth limit
－
4
Bandwidth
suppression
20MHz
Bandwidthsuppressionicon
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