Unit UTD4000 Series User manual

Safety Instructions
This unit is designed and manufactured strictly in
accordance with GB4793 safety requirements for
electronic testing meters and IEC61010-1 safety
standards. It fully meets CAT II 600V insulation and
overvoltage requirements and Grade II anti-pollution
safety standards. To prevent personal injuries and
damage of this unit or any other devices connected to
it please take note of the following safety precautions
To avoid potential hazards use this unit strictly as
instructed by this User Manual
Use only the specified
power cable which is authorized in the country of use.
Do not remove the
probe
or testing cable when they are connected to power.
This unit is grounded by
the ground wire of the power cable. To avoid electric
shock, the grounding conductor must touch the
ground. Before connecting the input or output
terminal, ensure the unit is properly grounded.
The probe ground cable is the same
as ground potential. Do not connect the ground cable
to non ground voltage or high voltage.
To prevent
fire and excessive current shock please check all
ratedvaluesandlabeldata Read the manual
carefully and check the rated values before
connecting the unit
Do not operate this unit when t
he outer cover
or front panel is open.
Only use specified fuse types
and rated specifications.
When power is on, never
make contact with exposed adaptor or components.
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Maintenance should only be carried out by a
trained professional.
To avoid fire and personal injury
Use a correct power cable
Remove the plug correctly
Ensure good grounding :
Connect the probe of the digital storage
oscilloscope
Check the rated values of all terminals
Do not operate the unit with the chassis cover
open
Use suitable fuses
Avoid exposing circuitry
UTD4000 Four-channel
User Manual

When fault is suspected, stop operation
Maintain good ventilation.
Do not operate in humid condition.
Do not operate in combustible and explosive
conditions.
Keep the product surface clean and dry.
Messages on the product
Danger
Warning
Caution
Icons on the product
:
If you
suspect a fault, ask a qualified maintenance
professional to carry out inspection.
Safety terminology used in this manual. The following
messages may appear in this manual
The following
messages may appear on the product
means potential damage that is
immediate
means potential damage that is not
immediate
means possible damage to this product
or other properties
The following icons may
appear on the product
Safety Messages and Symbols
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" "
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" "
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:
Warning
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Warning statements identify conditions
or practices that could result in injury or loss of life
Caution
:
Caution statements identify conditions
or practices that could result in damage to this unit
or other properties
UTD4000 Four-channel
User Manual
Protective
ground terminal
Ground terminal
for chassis
Ground terminal
for testing
Caution!
Refer to manual
High voltage

Preface
This manual provides information on the operation of the
UTD4000 four-channel digital storage oscilloscope series.
Guidance is given in several chapters as follows :
Simple guide to oscilloscope
functions and installation
Guide to operation of
the UTD4000 four channel digital storage oscilloscope
series.
Example
illustrations are provided to solve various testing
problems
Chapter 1 User Guide
Chapter 2 Instrument Setups
Chapter 3 Practical Illustrations
Chapter 4 System Prompts and Trouble shooting
Chapter 5 Servicing and Support
Chapter 6 Appendixes
Appendix A : Technical Indicators
Appendix B : Accessories for UTD4000 Four-channel
Digital Storage Oscilloscopes
Appendix C : Maintenance and Cleaning
Appendix D : Factory Setup
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UTD4000 Four-channel
User Manual

The UTD4000 Four-channel Digital Storage Oscilloscope Series
UTD4000 four-channel digital storage oscilloscopes offer user-friendliness, outstanding technical indicators
and a host of advanced features. They are your perfect tools to complete testing tasks swiftly and efficiently.
This manual is a user guide for 3 models of this digital storage oscilloscope series :
UTD4000 Four-channel
User Manual
Model
Bandwidth
Single-channel Sampling
Rate
Dual-channel Sampling
Rate
Equivalent Sampling
Rate
UTD4104C
UTD4204C
100MHz
200MHz
2GS/s
2GS/s
UTD4304C
300MHz
2GS/s
1GS/s
1GS/s
1GS/s
50GS/s
50GS/s

UTD4000 four-channel digital storage oscilloscopes
offer a user-friendly front panel with clear indications
to allow access to all basic functions for easy
operation. The scaling and position buttons for all
channels are optimally arranged for intuitive
operation As design is based on the familiar
practices of traditional instruments users can use
the new units without spending considerable time
in learning and familiarizing with operation For
faster adjustment to ease testing, there is an [ ]
key to instantly display the appropriate waveform and
range position.
The performance fe
atures listed below will explain
why the UTD4000 series can fully
satisfy your testing and measurement requirements
2GS/s real-time sampling rate and 50GS/s
equivalent sampling rate
Dual time base function unrivaled waveform
detail observation and analysis capabilities
24k storage depth; 60M equivalent storage
depth; 1024k recording length
Unique envelop sampling feature with direct
visual display of carrier wave details after
amplitude modulation
Scroll display in scan mode for continuous
monitoring of signal variations
Unique XY mode that displays the waveform and
Lissajou
s figure concurrently
USB drive system software upgrade
Supports plug-and-play USB storage device.
Communication with computer through the USB
device
Storage of waveforms setups and bit maps
waveforms and setups reproduction
Built-in FFT
Multiple waveform mathematics functions
(including add, subtract, multiply and divide)
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Four-channel
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UTD4000 Four-channel
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UTD4000 Four-channel
User Manual
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Edge, video, pulse, slope and alternate trigger
functions
Automatic measurement of 24 waveform parameters
parameters testing and customization
Multiple setups for extra flexibility
Visual system help messages
4 x 1.2m, 1:1/10:1 probe. For details refer to the
probe instructions. These accessories conform
with EN61010-031: 2008 standards
Power line conforming to international standards
applicable in the country of use
User Manual
USB connecting cable : UT-D06
UTD4000 four-channel oscilloscope
communication control software (USB-device)
2x multimeter test lead; 2x c -to-vol
tage
converter module: UT M03/UT-M04
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AUTO
UTD4000 Four-channel accessories :
urrent

TableofContents
Item Page
SafetyInstructions
Preface
Chapter1
FunctionalCheck
ProbeCompensation
AutomaticSetupforWaveformDisplay
GettingtoKnowtheVerticalSystem
GettingtoKnowtheHorizontalSystem
GettingtoKnowtheTriggerSystem
Chapter2 InstrumentSetups
SettingtheVerticalSystem
SettingtheHorizontalSystem
SettingtheTriggerSystem
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Setting the Display System
UserGuide------------------------------------------------------------------------------
GeneralInspection----------------------------------------------------------------------
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Setting the Sampling System
Storage and Recall
1
6
6
10
11
11
13
15
17
18
35
40
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56
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UTD4000 Four-channel
User Manual

Item Page
Automatic Measurement
UsingtheRun/Stop
Auto Setup
Help System
Chapter3 PracticalExampleIllustrations
Illustration 1 : Measuring simple signals
Illustration 2 : Observing the delay caused by a
sine wave signal passes through the circuit
Illustration 3 : Acquiring single signals
Illustration 4 : Reducing random noise of signals
Illustration 5 : Using the cursors for measurement
Illustration 6 : Using the X-Y function
Illustration 7 :
Illustration 8 :
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Utility Function Setup
Cursor Measurement
Multimeter Measurement
Vedio signal triggering
Using the dual time base function
Illustration 9 : Using the multimeter
64
70
74
76
77
78
78
80
80
81
83
84
86
90
92
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UTD4000 Four-channel
User Manual

I
tem Page
Chapter 4 System Prompts and Trouble-shooting -------------------------------------------
Definitions of System Prompts -----------------------------------------------------
Troubleshooting-----------------------------------------------------------------------
Chapter 5 ----------------------------------------------
Chapter 6 Technical Indicators ------------------------------------------------------------------
Appendix A : Technical indicators--------------------------------------------------
Appendix B :
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Appendix C : Maintenance and Cleaning-----------------------------------------
Appendix D -------------------------------------------------------
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Upgrading System Software on USB
Accessories for UTD4000 Four-channel Digital Storage
Oscilloscope Series
Factory Setups
96
96
96
98
106
106
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UTD4000 Four-channel
User Manual

Chapter 1 UserGuide
Your UTD4000 Four-channel digital storage
oscilloscope is a small and compact benchtop device.
The user-friendly front panel enables easy operation.
This chapter will guide you through basic testing
steps.
This chapter provides notes on the following :
General inspection
Functional check
Probe compensation
Automatic setups for waveform display
Getting to know the vertical system
Getting to know the horizontal system
Getting to know the trigger system
When beginning to use your UTD4000 Four-channel
oscilloscope, first familiarize yourself with the
operation front panel. This ch
apter briefly describes
the operation and functions of the front panel, so you
can get started with your UTD4000 four-channel
digital storage oscilloscope as quickly as possible.
Your UTD4000 Four-channel oscilloscope comes with
a front panel with at-a-glance functions for easy
operation There are knobs and function keys on
the front panel The functions of knobs are similar
to other oscilloscopes On the right you will find 5
menu operation keys designated as to
from top down With these keys you can set up
different options of the current menu. The other keys
are function keys. You can use the
m to enter different
function menus or access particular functions directly.
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F1 F5
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UTD4000 Four-channel
User Manual

Figure1-1 Series Digital Storage Oscilloscope
UTD4000 Four-channel
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UTD4000 Four-channel
User Manual

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UTD4000 Four-channel
User Manual
Figure 1-2 Back cover of UTD4000 four-channel digital storage oscilloscope
USB device communication
interface
External trigger
channel

PROBE
COMP
V
MHz
≈
3
1
All I nput s
400Vp M ax
CAT II
1M 16pF
Ω
≈
TRIGGER
HORIZONTAL
SCALE
MENU
HELP
REF
MATH
F1
F2
F3
F4
F5
MENU
ON/OFF
CLOSE
DMM
MEASURE
CURSOR
ACQUIRE
DISPLAY
STORAGE
RUN/STOP
UTILITY
AUTO
MENU
VERTICAL
SCALE
SCALE
SCALE
SCALE
SEC/DIV
UTD4304C
300MHz 2GS/s
DIGITAL STORAGE OSCILLOSCOPE
POSITION
POSITION
POSITION
POSITION
POSITION
UTD4000 Four-channel
User Manual
Figure1-3 Series Digital Storage Oscilloscopes
Front Panel
UTD4000 Four-channel
4
Trigger controls
Horizontalcontrols
Frequently
UsedMenus
Multifunction
knob
Verticalcontrols
Probecompensation
signaloutput
Analogsignalinput
USBHost
interface
M
ultim
eterinput
Powerswitch

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UTD4000 Four-channel
User Manual
Figure1-4 Schematicdiagram of the displayinterface
Trigger status display
Displayingthehorizontaltriggerposition
Trigger frequency counter
Channel vertical
attenuation range
Trigger level
Waveform
displaywindow
Themenuvarieswith
individualfunctionkeys
Channel vertical
reference
Displaying main
time base setup

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UTD4000 Four-channel
User Manual
General Inspection
Functional Check
We suggest checking your new UTD4000 Four-
channel oscilloscope in the following steps.
If the package carton or foam plastic protective lining
is seriously damaged, please arrange for exchange
immediately.
A checklist of accessories that come with your
UTD4000 Four-channel oscilloscope is provided in
the section Accessories for UTD4000 Four-channel
Digital Storage Oscilloscopes of this user manual
Please check any missing items against this list
If any item is missing or damaged please contact
your NI-T dealer or our local office.
If the exterior of the unit is damaged, or it is not
op
erating normally, or it fails to pass the performance
test, please contact your UNI-T dealer or our local
office.
In the event of any shipping damages, please retain
the packaging and notify our shipping department or
your UNI-T dealer. We will be glad to arrange
maintenance or repair.
Carry out a quick functional check in the following
steps to make sure your oscilloscope is operating
normally.
1. Check the unit for possible shipping damages
2. Check the accessories
3. Thorough inspection of the entire unit
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1. Power on the unit
UTILITY
F1
UTILITY F1 F5
F1
CH1
Power on the unit. AC power supply voltage range is
100V to 240V, frequency 45Hz-440Hz. After
connecting to power, start the self calibration process
on the optimal oscilloscope signal path at greatest
measurement accuracy. Press the [ ] button
and [ ] twice, then press the
control knob to perform the function Press
[ ] and [ ], then press [ ] to go to the next
page. There, press [ ] then the
control knob To recall default setup, see
Figure 1-5.
At the end of the above process, press [ ] to enter
the CH1 menu..
MULTIPURPOSE
MULTIPURPOSE
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Utility key
Power switch
Figure1-5
Warning
:
To avoid danger, ensure the digital
storage oscilloscope is safely grounded.
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UTD4000 Four-channel
User Manual

2. Accessing signals
Your UTD4000 Four-channel digital storage
oscilloscope has four input channels and an external
trigger input channel, as shown in Figure 1-6. Please
access signals in the following steps :
Connect the probe of the digital storage
oscilloscope to the CH input terminal and set
the attenuation switch of the probe to X
Figure
①
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( - ).
1
10
1 7
Figure1-6
Four-channel input and external
trigger channel
8
EXT external trigger channel
–
Figure 1-7 Setting the attenuation switch of
the oscilloscope probe
UTD4000 Four-channel
User Manual

②
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: [ ] [ ]
.
You have to set the probe attenuation factor of
the oscilloscope. This factor changes the vertical
range multiple to ensure the measurement result
correctly reflects the amplitude of the signal being
tested Set the attenuation factor of the probe as
follows Press then to show X on
the menu
F F
4 2
AUTO
CH1 CH2
10
Connect the probe tip and ground clamp to the
connection terminal for the probe compensation
signal. Press [ ] and you will see a square wave
in the display (1kHz, approximately 3V, peak-to-peak
value) in a few seconds, as shown in Figure 1-
Press [ ] twice to close CH1, then press [ ]
to activate CH2 and repeat steps 2 and 3. Use the
same method for CH3 and CH4.
③
④
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9
Figure1-8 Settingthedeflectionfactor
oftheoscilloscopeprobe
Figure1-9 Probecompensationsignal
Proberation
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UTD4000 Four-channel
User Manual

ProbeCompensation
When connecting the probe to any input channel for the first
time, perform this adjustment to match the probe to the
channel. Skipping the compensation calibration step will
result in measurement error or fault. Please adjust probe
compensationasfollows:
1 Settheprobeattenuationfactorto10X.Movetheswitch
on the probe to 10X and connect the probe to CH1.
When using a hook-tip, ensure it is well connected to
the probe. Connect the probe tip to the output terminal
of the probe compensator s signal connector, and the
ground clamp to the ground cable connector of the
probecompensator.Acti
vateCH1thenpress[ ].
3. Ifyouseean Undercompensation or
Overcompensation waveform display adjust the
adjustable capacitance tab of the probe with a
screwdriver with non metal handle until a Correct
Compensation waveform shown in the above figure is
displayed
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AUTO
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2. Observe the displayed waveform.
Overcompensation
CorrectCompensation
Undercompensation
Figure1-10 Probecompensationcalibration
Warning :
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To avoid electric shock when measuring high
voltage with the probe ensure the probe s
insulation lead is in good condition. Do not
touch the metal part of the probe when
connectedtoHVpower.
10
UTD4000 Four-channel
User Manual

Automatic Setup for Waveform Display Getting to Know the Vertical System
Your UTD4000 Four-channel digital storage
oscilloscope features an auto setup function. It can
automatically adjust the vertical graticule factor,
scanning time base and trigger mode based on the
input signal, until the most appropriate waveform is
displayed. The auto setup function can only be
operated when the signal to be measured is 50Hz or
above and the duty ratio is larger than 1%.
1. Connect the signal to be tested to the signal input
channel.
2. Pr e s s [ ]. Th e osc il l o s co p e w il l
automatically set the vertical graticule factor
scanning time base and trigger mode Should
you require to m
ake more detailed check you
can adjust manually after the auto setup
process until you get the optimal waveform
display
As shown in the figure below, there are a group of
buttons and knobs in the vertical control zone. The
following exercise will guide you through vertical
setup.
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Using the Auto Setup Function :
A U T O
Figure1-11
Vertical control zone on the front panel
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UTD4000 Four-channel
User Manual