UNI-T | UTD1102C | manual | UNI-T UTD1102C Handheld Digital Storage Oscilloscope Manual

UNI-T UTD1102C Handheld Digital Storage Oscilloscope Manual
P/N: 110401104796X
MAY.2018 REV. 3
UTD1000 User Ma nual
General Safety Rules
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 antipollution 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. Maintenance should only be carried out by a
trained professional.
Safety Messages and Symbols
Safety terminology used in this manual. The following
messages may appear in this manual :
Warning : 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.
Messages on the product: The following messages may
appear on the product :
"Danger" means potential damage that is immediate.
"Warning" means potential damage that is not immediate.
"Caution"means possible damage to this product or other
properties.
To avoid fire and personal injury
Use a correct power cable: Use only the specified power
cable which is authorized in the country of use.
Remove the plug correctly: Do not remove the probe or
testing cable when they are connected to power.
Correctly connect the oscilloscope probe: After connect
the probe and the handheld digital storage oscilloscope, the
probe tips connect to the oscilloscope as well as 2 channels
terminal well connected. After that, both of probe tips are
connected. In order to have a safety testing, the probe
grounding wire is connected with the circuit. If not connect to
the ground, it needs below human being voltage fro the
safety purpose.
Warnings:
1. Channel A & Channel B are connected. It means both
probe tips are connected. Using the same testing point as
reference, otherwise it causes short circuit or damage.
2. Probes connect to the testing point which not exceeding
human voltage.
UTD1000 User Ma nual
3. For the safety purpose, USB / HOST terminal connect to
the grounding tips insulted cover as our USB / HOST
terminal connect to the grounding tips. Do not allow any
other external device to connect USB / HOST terminal. If
fail to do that, it may cause to damage.
4. If input terminal is exceeding human voltage, please
remove all the probe, test leads and accessories in order to
avoiding any shocking.
Check the rated values of all terminals : To prevent fire
and excessive current shock, please check all rated values
and label data. Read the manual carefully and check the
rated values before connecting the unit.
Do not operate the unit with the chassis cover open: Do
not operate this unit when the outer cover or front panel is
open.
Using an approximate power supply, it can allow to using
our certificated DC power supply
Avoid exposing circuitry : When power is on, never make
contact with exposed adaptor or components.
When fault is suspected, stop operation : If you suspect a
fault, ask a qualified maintenance professional to carry out
inspection.
Maintain good ventilation.
Do not operate in humid condition.
Do not operate in combustible and explosive
conditions.
Keep the product surface clean and dry.
Preface
This manual provides information on the operation of the
UTD1000 digital storage oscilloscope series.Guidance
is given in several chapters as follows :
Chapter 1 User Guide : Simple guide to oscilloscope
functions and installation.
Chapter 2 Instrument Setups : Guide to operation
of the UTD 1000 digital storage oscilloscope series.
Chapter 3 Practical Example Illustrations :Example
illustrations are provided to solve various testing
problems.
Chapter 4 System Prompts and Trouble-shooting :
Chapter 5 S ervicing and Soppurt
Chapter 6 Appendixes
Appendix A : Technical Indicators
Appendix B : Accessories for UTD 1000 Oscilloscope
Appendix C : Maintenance and Cleaning
UTD1000 User Manual
Table of Contents
Introduction : UTD1000 Series Digital Storage Oscilloscope
Chapter 1 User Guide
1. Getting to know your UTD1000 Digital Storage Oscilloscope
2. General Inspection
3. Functional Check
4. Probe Compensation
5. Automatic Setups
6. Getting to Know the Operation Panel
1
4
4
7
8
10
11
11
UTD1000 User Manual
Chapter 2
Instrument Setups
1. Resetting the Instrument
2. Using the Jog Dial Function
3. Vertical System Setup
4. Horizontal System Setup
5. Trigger System Setup
6. Display, Acquisition Modes and Automatic Measurement
7. Storage Setups and Screen Copy
8. Cursor Measurement
9. Utility Function Setup
10. Operating Maths Functions
11. Window Extension
12. Hiding the Menus
13. Using the Run Button
14. Multimeter Measurement
13
14
17
24
24
32
42
49
50
52
56
57
57
58
UTD1000 User Manual
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Practical Example Illustrations
Illustration 1 : Measuring simple signals
Illustration 2 : Observing the delay and distortion 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 cursors for measurement
Illustration 6 : Using the X-Y function
Illustration 7 : Video signal triggering
System Prompts and Trouble-shooting
1. Definitions of System Prompts
2. Troubleshooting
Service and Support
1. Product Program Upgrade
Appendixes
Appendix A : Performance Indicators
Appendix B : Accessories for UTD1000 Oscilloscope
Appendix C : Maintenance and Cleaning
59
59
60
61
63
64
65
67
69
69
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UTD1000 User Manual
Introduction : UTD1000 Series Digital Storage Oscilloscopes
UTD1000 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 7 models of this digital storage Oscilloscope series :
Model
UTD1025C
UTD1042C
UTD1062C
UTD1082C
UTD1102C
UTD1152C
UTD1202C
Bandwidth
25MHz
40MHz
60MHz
80MHz
100MHz
150MHz
200MHz
Sampling Rate
250MS/s
250MS/s
250MS/s
500MS/s
500MS/s
1GS/s
1GS/s
Display
Color
Color
Color
Color
Color
Color
Color
UTD1000 User Manual
UTD1000 Oscilloscopes offer a user-friendly front panel with clear indications to allows access to all basic functions
for easy operation. The scaling and position buttons for all channels are optimally arranged for direct view operation.
As design is based on the controls 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
[AUTO] key to instantly display the appropriate waveform and range position. Apart from being extremely user-friendly,
UTD1000 Oscilloscopes have the high performance indicators and superb functions required for speedy execution
of measurement tasks. The strong trigger and analytical functions make it easy to acquire and analyse waveforms,
while the sharp and clear LCD and mathematics functions ensure clear observation and reliable analysis of signal
conditions.
The performance features listed below will explain why the UTD1000 series can fully satisfy your testing and
measurement requirements :
● Dual channels; vertical deflection width range : 5mV/div – 50V/div
● Automatic waveform and status configuration
● Storage of waveforms, setups and interfaces; waveforms and setups reproduction
● Screen copy function
● Fine window extension; precise analysis of waveform details and overview
● Automatic measurement of 27 waveform parameters
● Cursor measurement function
● Unique waveform recording, storage and replay function
● USB interface that supports USB2.0
● HD color 5.7 inch LCD panel at 320 x 240 pixel aspect ratio
UTD1000 User Manual
●
●
●
●
●
●
●
Built-in FFT
Multiple waveform mathematics functions (including add, subtract, multiply and divide)
Edge, video, pulse width, and alternate trigger functions
Multimeter function
SB drive system software upgrade
Multilingual menu displays
Help messages in English and Chinese
UTD1000 accessories :
● 2 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
● 2 x current-to-voltage converter module; UT-M03/UT-M04
● Test lead
● DC adaptor
UTD1000 User Manual
Chapter 1User Guide
Your UTD1000 Series digital storage Oscilloscope (the
“Oscilloscope”) is a small and compact portable device.
The user-friendly front panel enables easy operation for
basic testing and measuring tasks.
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
1. Getting to know your UTD1000 Digital
Storage Oscilloscope
When beginning to use your UTD1000 Oscilloscope,
first familiarize yourself with the operation front panel.
This chapter briefly describes the operation and
functions of the front panel, so you can get started with
your UTD1000 series digital storage Oscilloscope as
quickly as possible.
Your UTD1000 Oscilloscope comes with a front panel
with at-a-glance functions for easy operation. There are
function keys and a jog dial on the front panel. The jog
dial has special functions, which will be explained in
detail on the following pages. The row of 5 keys at the
bottom of the display panel are menu operation keys
(designated as [F1] to [F5] from left to right).
With these 5 keys you can set up different options of
the current menu. The other keys are function keys.
You can use them to enter different function menus or
access particular functions directly.
UTD1000 User Manual
Figure 1-1 Front panel of UTD1000 Oscilloscopes
Figure 1-2 Schematic diagram for the display interface
UTD1000 User Manual
Display Zone :
Apart from the waveform display zone, the display panel
also features other details about the waveform and
the unit’s control setup. These are explained by their
sequence numbers in the above figure :
1. Trigger source status display is as follows :
A. Select signals of Channel A as the trigger signal
source.
B. Select signals of Channel B as the trigger signal
source.
AB. Select signals of Channels A and B as the alternate
trigger signal source
2. Trigger coupling mode display is as follows :
AC trigger coupling mode, i.e. only AC quantities
larger than 10Hz of the trigger signals can pass the
coupling capacitor. The DC will be intercepted. This is a
general trigger coupling mode.
DC trigger coupling mode, i.e. allowing both AC and
DC quantities of the trigger signal to pass through to the
trigger circuit. This mode is suitable for observing ultralow frequency signals.
High frequency suppression mode, i.e. rejecting
high frequency AC quantities above 80kHz of the
trigger signal. This mode is suitable for observing low
frequency signals.
Low frequency suppression mode, i.e. rejecting
low frequency AC quantities below 80kHz of the
trigger signal. This mode is suitable for observing high
frequency signals.
3. This reading is the rising edge level.
4. Trigger status is displayed as follows :
ARMED
READY
TRIG’ED
STOP
AUTO
SCAN
The Oscilloscope is acquiring pre-trigger
data. All triggers are ignored.
The Oscilloscope has acquired all pretrigger data and is ready to accept trigger.
The Oscilloscope has detected one trigger
and is acquiring post-trigger data.
The Oscilloscope has stopped acquiring
waveform data.
The Oscilloscope is in automatic mode
and acquiring waveform with no trigger.
The Oscilloscope is continuously acquiring
and displaying waveform in the scan mode.
UTD1000 User Manual
5. The reading of time distance between the trigger
point and the centre graticule is displayed here.
6. This icon indicates the power supply mode, i.e.:
The Oscilloscope uses battery power
The Oscilloscope uses DC adaptor power
7. The sign on the screen indicates the ground level
reference point of the waveform. If there is no sign, it
means the channel is not on.
8. 10X : This icon indicates the channel probe ratio
is set to 10 times. In operation, probe ratio must be
set to 10X if you wish to set the Oscilloscope channel
menu accordingly. Otherwise the measurement voltage
amplitude will be increased 10 times.
Bw : This icon indicates the channel bandwidth is
restricted. In other words bandwidth is 20MHz (this
function only applies to models with bandwidth over
25MHz).
9. M value indicates the main time base mode and the
applicable time base range.
2. General Inspection
We suggest checking your new UTD1000 Oscilloscope
in the following steps.
1. Check the unit for possible shipping damages
If the package carton or foam plastic protective lining is
seriously damaged, please contact your Uni-T dealer or
the local Uni-T office.
2. Check the accessories
A checklist of accessories that come with your UTD1000
Oscilloscope is provided in the section “Accessories for
UTD1000 Oscilloscopes” of this user manual. Please
check any missing items against this list.
If any item is missing or damaged, please contact your
UNI-T dealer or our local office.
3. Thorough inspection of the entire unit
If the exterior of the unit is damaged, or it is not
operating normally, or it fails to pass the performance
test, please contact your UNI-T dealer or our local
UTD1000 User Manual
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
ķ Connect the probe of the digital storage Oscilloscope
to the red input terminal (Channel A), and set the
attenuation switch of the probe to 10X.
3. Functional Check
Carry out a quick functional check in the following steps
to make sure your Oscilloscope is operating normally.
1. Power on the unit
Power on the unit. You can select from two power
supply methods : internal battery power or external DC
adaptor power. Power supply voltage of the DC adaptor
is grid voltage. After connecting to power, start the self
calibration process by pressing the [USER] button then
[F3]. This will ensure optimal performance.
Figure 1-3 Setting the probe attenuation switch
2. Accessing signals
Your UTD1000 Oscilloscope has dual input channels.
Please access signals in the following steps :
UTD1000 User Manual
ĸ You have to set the probe attenuation factor of the
Ĺ Connect the probe tip and ground clamp to 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 : Select other
menu in Channel A then set probe ratio to 10X with the
jog dial.
output terminal of the function signal generator. Select
a square wave of 1kHz output frequency and 3Vpp
amplitude. Press [AUTO] and you will see a 1kHZ/3Vpp
square wave in the display in a few seconds, as shown
in Figure 1-5. Repeat steps 2 and 3 to check Channel B.
Figure 1-4 Adjusting the probe ratio
Figure 1-5 Square wave signal 10:1
UTD1000 User Manual
4. Probe Compensation
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 compensation as follows :
1.Set the probe attenuation factor to 10X. Move the
switch on the probe to 10X and connect the probe to
Channel A. Connect the probe tip and ground clamp
to the output terminal of the function signal generator.
Select a square wave of 1kHz output frequency and
3Vpp amplitude. (Rising time of square wave should be
≤100 μs).
2.Turn Channel A on then press [AUTO].
Over compensation Correct Compensatio
Under compensation
Figure 1-6 Probe compensation calibration
If you see an "Under compensation" or “Over compensation” waveform display, adjust the adjustable tab
of the probe with screwdriver with nonmetal handle
in the probe accessory pack, until a “Correct Compensation” waveform shown in the above figure is displayed.
Warning : 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 connected to HV power.
3.Observe the shape of the displayed waveform.
UTD1000 User Manual
5. Automatic Setups
6. Getting to Know the Operation Panel
Automatic Setup for Waveform Display
Your UTD1000 Oscilloscope features an auto setup
function. It can automatically adjust the vertical
deflection factor, scanning time base and trigger mode
based on the input signal, until the most appropriate
waveform is displayed. The automatic setup function
can only be operated when the signal to be measured is
50Hz or above and the duty ratio is larger than 1%.
Please see Figure 1-7 below for operation front panel
instructions :
Using the Automatic Setup Function :
1.Connect the signal to be tested to the signal input
channel.
2.Press [AUTO]. The Oscilloscope will automatically set
the vertical deflection factor, scanning time base and
trigger mode. Should you require to make more detailed
check, you can adjust manually after the automatic
setup process until you get the optimal waveform
display.
Figure 1-7
Operation front panel
UTD1000 User Manual
The Vertical System :
The Trigger System :
By press the
key to adjust the vertical range (V/div)
of the Oscilloscope, you can adjust the signal to a size
best suited to screen display.
Press [TRIGGER] to adjust the trigger setup of the
waveform. For the trigger menu, see Figure 1-8.
By press the
key to adjust the position of the
reference waveform reference point, you can adjust the
signal to the position best suited to screen display.
The Horizontal System :
Press the
(s, ns) key to change the horizontal
time base range setup. Range of horizontal scanning
rate is 5ns-50s/div (UTD1102C) in steps of 1-2-5.
Figure 1-8 Trigger System Setup
The above operation steps are detailed in the next
chapter.
Note : Minimum horizontal time base range of the
UTD1000 Series varies from model to model.
Press the
key to adjust the horizontal position
of the trigger point. You can observe more pre-trigger
information.
UTD1000 User Manual
Chapter 2 Instrument Setups
This chapter gives guidance on all Oscilloscope
functions and multimeter functions of your UTD1000.
Also available are detailed instructions for all front panel
function keys and examples of menu uses and basic
operation steps.
This chapter will guide you through the following :
Ƶ Resetting the instrument
Ƶ The jog dial
Ƶ Setting up the vertical system ([A], [B], [
], [
Ƶ Hiding the menu ([CLEAR]/[MENU])
Ƶ Operation buttons ([AUTO], [RUN/STOP])
It is recommended that you read this chapter carefully
to understand the various measurement functions and
system operation steps of your UTD1000.
1. Resetting the Instrument
To use factory setup, follow the steps below :
])
], [
])
Ƶ Setting up the horizontal system ([
Ƶ Setting up the trigger system ([TRIGGER])
Ƶ D i s p l a y, a c q u i s i t i o n m o d e a n d a u t o m a t i c
measurement (SCOPE)
Ƶ Storage setup and screen backup (SAVE)
Ƶ Cursor measurement ([CURSOR])
Ƶ Utility setup ([USER])
Ƶ Mathematics function ([MATH])
Ƶ Zoom function ([ZOOM])
After connecting to power press [POWER] to turn
the Oscilloscope on(you must press this key about 2
seconds). When the power-on screen appears, press
and hold the [CLEAR/MENU] key to select factory
setup. When setup is done, the screen in Figure 2-1 will
appear.
UTD1000 User Manual
1. Making menu selection with the jog dial
a. Press [SCOPE]. The menu in the figure below
appears at the bottom of the screen.
Figure 2-1 Resetting the instrument
Figure 2-2 Making menu selection with the jog dial
2. Using the Jog Dial Function
The jog dial is a multifunction knob that enables easy
operation and control of various menus. The example
below illustrates the use of this dial.
UTD1000 User Manual
b. Press [F3] to select display. Enter the display menu shown in the figure below.
Figure 2-3 Operating the “Type” Menu with the jog dial
Figure 2-4 Operating the “Continuous”
Menu with the jog dial
UTD1000 User Manual
will then enter the format menu. If you wish to change
the format repeat the above steps. Otherwise press the
jog dial to close this menu, as shown in Figure 2-5.
Note : When operating the menu as shown in Figure 2-4,
if the menu selection indicator is at “continuous”, you
can press the return key [F5] to go back to the previous
type menu to reset that page.
Figure 2-5 Operating the
“Format” Menu with the jog dial
c. With the jog dial, select dot as the display type. The
selected menu will appear bold. Then press the jog dial
once to confirm. “Dot” is now selected as the display
type, and the bold selection indicator on the screen will
automatically jump to the continuous menu, as shown in
Figure 2-4. Turn the jog dial to set continuous mode to
5s, then press the jog dial once to confirm. The screen
2. Controlling bias voltage with the jog dial
(See the “Vertical System Setup” section for details)
3. Shifting trigger level with the jog dial
(See the “Trigger System Setup” section on P.24 for
details)
4. Doing cursor measurement with the jog dial
(See the “Cursor Functions” section on P.49 for details)
5. Using the mathematics function with the jog dial
(See the “Mathematics Function” section on P.52 for
details)
UTD1000 User Manual
3. Vertical System Setup
Channel A, Channel B and shifting signals vertically
Each channel has its own menu. You should set up each item for each channel individually. Press the [A] or [B] function
key and the system will display the operation menu for Channel A or Channel B. For explanatory notes based on
Channel A, see Table 2-1 below :
Channel A on
On
Input A
Channel A off
Off
AC and DC quantities of input signal is allowed to pass. This mode is for
DC
observing DC or exchange signals with DC quantities.
Coupling
DC quantities of the input signal are intercepted. This mode is for observing
AC
exchange signals with DC quantities intercepted.
DC level of the channel input terminal upon equivalent grounding is displayed.
Ground
The Oscilloscope’s frequency bandwidth is full bandwidth.
Bandwidth Full bandwidth
Limit bandwidth to 20MHz to reduce display noise.
20MHz
limit
Bias voltage
Adjust the channel bias voltage with the jog dial. When the DC quantities of the
Bias
(xxmV)
signal being tested are much larger than the amplitude of the AC signal, you can
Voltage
offset the DC quantities with bias voltage. In this condition, you can observe the
amplified AC signal.
Reset the bias voltage to zero.
Reset to zeroReturn
Go back to the Channel A menu
Table 2-1 Explanatory notes for channel A menu
UTD1000 User Manual
Probe
Others
Polarity
1X
10X
100X
1000X
Normal
Invert
Select one of the values based on the probe attenuation factor
to keep the reading of the signal being measured correct.
Normal waveform display Waveform is invert
Table 2-1 Explanatory notes for channel A menu(continued)
1. Setting channel coupling
Take the example of applying a signal to Channel A.
The signal being tested is a sine signal that contains DC
quantities. Press [A] to select Channel A. Then press
[F1] to set A input to “ON”. Next press [F2] to select DC
coupling. Both DC and AC quantities of the signal being
tested and input to Channel A can pass through. The
waveform display is as follows :
DC coupling setup
Figure 2-6 Both DC and AC quantities
of the signal are displayed
UTD1000 User Manual
Press [F2] to select DC coupling. DC quantities of
the signal being tested and input to Channel A will be
intercepted. Only AC quantities can pass through. The
waveform display is as follows :
Press [F2] to select ground coupling. The channel input
is now set to equivalent ground. The channel input level
appears on screen and waveform display is as shown in
Figure 2-8 :
(Note : In this mode, although waveform is not
displayed, the input signal remains connected to
the channel circuit)
AC coupling setup
Figure 2-7 Only AC quantities of the signal are displayed
Ground coupling setup
Figure 2-8 Screen display for the ground mode
UTD1000 User Manual
2. Setting the channel bandwidth limit
Take the example of applying a signal to Channel B. The signal being tested is a signal stacked with high frequency
quantities.
Press [B] to turn Channel B on. Next press [F3] to set channel bandwidth to full bandwidth. The signal being measured
can pass through even if it contains high frequency quantities. The waveform display is as shown in Figure 2-9 :
Full bandwidth setup
Figure 2-9 Full bandwidth setup
20MHz bandwidth limit
Figure 2-10 20MHz bandwidth limit
Press [F3] to set bandwidth limit to 20MHz. All high frequency quantities higher than 20MHz in the signal being tested
will be limited. The waveform display is as shown in Figure 2-10.
UTD1000 User Manual
3. Setting bias voltage
Bias voltage is suitable for observing the following
signals :
ķThe input signal is made up of relatively high DC
quantities and relatively low AC quantities.
ĸThe input AC signal is very low in frequency and
contains DC quantities. AC mode is unsuitable.
Ĺ Duty ratio of the signal is too small. Waveform details
are hard to observe even in AC mode.
4. Setting the probe rate
To match the probe attenuation factor setup, it is
necessary to set up the probe attenuation factor in the
channel operation menu accordingly. For example,
when the probe attenuation factor is 10:1, set the
probe attenuation factor at 10X in the menu. Apply this
principle to other values to ensure the voltage reading is
correct.
The figure below shows the setup and vertical range
display when the probe is set at 10:1.
Press [A] to turn Channel A on, then press [F5]. Select
“Others” and select 10X probe ratio with the jog dial, as
shown below :
Set to 10X
Figure 2-11 Setting the probe ratio
Next press the jog dial once to confirm, then press the
jog dial again to close the menu.
After confirming, amplitude reading of Channel A is
displayed as follows :
UTD1000 User Manual
Changes in vertical range
Figure 2-12 Changes in vertical range
5. Setting the waveform polarity
Inverted waveform : This indicates the signal is 180°
inverted in relation to the channel ground level. The
example below shows the setup for signal inversion and
the display for inverted signal. Press [A] to turn Channel
A on, then press [F5]. Select “Others” and select
inverted polarity, as shown in Figure 2-13.
Figure 2-13
Inversion setup
Press the jog dial once to confirm, then press the jog
dial again to close the menu. Signal display is as shown
below.
UTD1000 User Manual
Figure 2-14 Channel polarity setup (normal)
Figure 2-15 Channel polarity setup (inverted)
UTD1000 User Manual
4. Horizontal System Setup
5. Trigger System Setup
Changing the signal time base and horizontal shift
Accelerate or decelerate the Oscilloscope’s scanning
Triggering decides when the Oscilloscope collects data
and display waveforms. Once the trigger is correctly set
up, it can transform unstable displays into meaningful
waveforms. When beginning to acquire data, the
digital storage Oscilloscope first collects sufficient data
required for drawing a waveform on the left side of the
trigger point. While waiting for the triggering condition,
the Oscilloscope will continue acquiring sufficient data
to draw a waveform on the right side of the trigger point.
You can set trigger functions with the trigger function
key [TRIGGER].
Trigger : Key for the trigger function setup menu.
Trigger level : Trigger level is set to a signal voltage
that matches the trigger point (by turning the jog dial).
Trigger types : Edge, Video, Pulse.
Edge trigger : Trigger is set to occur when the signal
is at the rising or falling edge. You can set the trigger
level to change the trigger point’s vertical position on
the trigger edge, i.e. the intersection point of the trigger
level line and the signal edge on the screen.
rate by pressing
, from 5ns/div~50s/div
(UTD1102C).
Note : Minimum horizontal time base range of the
UTD1000 Series varies from model to model.
UTD1000 User Manual
Pulse trigger : When the pulse width of the trigger signal reaches a preset trigger condition, trigger occurs.
Video trigger : Carry out field or line trigger to standard video signals.
Below are notes for various trigger menus.
Edge Trigger
For edge trigger menu setups please see the table below.
Table 2-2
Function Menu
Trigger
Setup
Edge
A
B
Alternate
Trigger source
Trigger setup
Slope
Holdoff
Trigger
mode
Auto
Normal
Single
Trigger
coupling
DC
AC
L/F Suppression
H/F Suppression
Rise
Fall
40ns – 1.5s
Explanatory Note
Set edge as the trigger type.
Set Channel A as the signal source trigger signal.
Set Channel B as the signal source trigger signal.
A and B trigger their individual signals alternately
Waveform is acquired even when no trigger condition is detected.
Acquisition takes place only when trigger condition is met.
One waveform is acquired when one trigger is detected.
Acquisition then stops.
Allow AC and DC quantities of the input signal to pass.
Intercept DC quantities of the input signal.
Reject low frequency quantities below 80kHz of the signal.
Reject high frequency quantities above 80kHz of the signal.
Set to trigger at the signal’s rising edge.
Set to trigger at the signal’s falling edge.
Adjust holdoff time.
UTD1000 User Manual
Adjusting Holdoff Time
You can adjust the holdoff time to observe complicated
waveforms (e.g. pulse string series). Holdoff time
means adjusting the data acquisition cycle of the digital
storage Oscilloscope. It is an exact multiple of the
cycle of the complicated waveform being tested, thus
synchronization is possible.
For example, if the signals being tested are a group
of wave signals, apply them to Channel A then press
[TRIGGER] to select edge trigger mode. Next press [F5]
to activate holdoff adjustment and adjust holdoff time
with the jog dial. Holdoff time will change accordingly
until waveform display is stable, as shown in the figure
below.
Holdoff time
Figure 2-16 Holdoff
Note : Holdoff time is usually slightly shorter than
the “large cycle” time. When observing the RS232
communication signal, it is easier to achieve stable
synchronization of holdoff time is slightly shorter than
the starting edge time of every set of data.
Pulse Trigger
Pulse trigger means determining the triggering time
based on the pulse width. You can acquire abnormal
pulse by setting the pulse width condition.
UTD1000 User Manual
Table 2-3
Function Menu
Trigger
Trigger source
Trigger setup
Trigger
setup
Pulse width
Pulse width
setup
Setup
Explanatory Note
Pulse
A
B
Alternate
Set edge trigger as the trigger type
Set A as the signal source trigger signal.
Set B as the signal source trigger signal
A and B trigger their individual signals alternately.
Set to acquire waveform only if no trigger is detected.
Set to acquire waveform only if trigger condition is satisfied.
Set to acquire one waveform when one trigger is detected, then stop.
Trigger mode
Auto
Normal
Single
DC
AC
L/F Reject
H/F Reject
40ns – 6.40s
=
Pulse width
<
condition
>
Trigger
coupling
Pulse width
polarity
Positive
Negative
Intercept AC and DC quantities of the input signal.
Intercept DC quantities of the input signal.
Suppress low frequency quantities below 80kHz of the signal.
Suppress high frequency quantities above 80kHz of the signal.
Set pulse width with the jog dial.
Trigger occurs when pulse width equals to the set value.
Trigger occurs when pulse width is smaller than the set value.
Trigger occurs when pulse width is larger than the set value.
Set the positive pulse width as the trigger signal.
Set the negative pulse width as the trigger signal.
UTD1000 User Manual
Video Trigger
By selecting video trigger, you can carry out field or line trigger with NTSC or PAL standard video signals.
Trigger menus are as follows :
Table 2-4
Function Menu
Trigger
Trigger source
Standard trigger
Synchronization
Setup
Video
A
B
Alternate
PAL
NTSC
All lines
Specified lines
Odd field
Even field
Explanatory Note
Set video trigger as the trigger type.
Set A as the signal source trigger signal.
Set B as the signal source trigger signal.
A and B trigger their individual signals respectively.
Suitable for PAL video signals.
Suitable for NTSC video signals.
Set the TV line to synchronize with trigger.
Set synchronized trigger on the specified line and adjust with the jog dial.
Set the video odd field to synchronized trigger.
Set the video even field to synchronized trigger.
UTD1000 User Manual
When PAL is selected for standard format and synchronization mode is “specified line”, you will see a screen display
as shown in Figure 2-17. When synchronization mode is “odd field”, you will see a screen display as shown in Figure
2-18.
Figure 2-17 Video trigger : line synchronization
Figure 2-18 Video trigger : field synchronization
UTD1000 User Manual
Alternate Trigger
When alternate trigger is selected, trigger signals will
be present in their individual vertical channels. This
triggering mode is suitable for observing two signals of
uncorrelated signal frequencies, as shown in the figure
below.
Figure 2-19 Alternate trigger
Alternate trigger can also be used to compare pulse
widths.
Definitions
1.Trigger source : Trigger can be obtained from various
sources : Input channel (A or B) and alternate.
Ƶ Input Channel : The most common trigger source
is input channel (choose A or B). The channel selected
as trigger source can operate normally only when the
corresponding input channel is on.
2.Trigger mode : Determine the action of your
Oscilloscope at trigger by selecting the mode. This
Oscilloscope offers three trigger modes for selection :
auto, normal and single.
Ƶ Auto Trigger : The system will acquire waveform
data automatically when there is no trigger signal input.
The scan baseline is shown on the display. When the
trigger signal is generated, it automatically turns to
trigger scan for signal synchronization.
Note : When time base of the scan range is set to
50ms/div or slower, the Oscilloscope will enter the “Scan”
mode.
Ƶ Normal Trigger : In this mode, your Oscilloscope
samples waveforms only when triggering conditions are
met. The system stops acquiring data and waits when
UTD1000 User Manual
there is no trigger signal. When the trigger signal is
generated, trigger scan occurs.
Ƶ Single Trigger : In this mode, you only have to
press the “Run” button once and the Oscilloscope
will wait for trigger. One sampling will occur and the
acquired waveform will be displayed when the digital
storage Oscilloscope detects a trigger. Then trigger will
stop.
3.Trigger coupling : Trigger coupling determines which
quantities of the signal are transmitted to the trigger
circuit. Coupling modes are DC, AC, low frequency
suppression and high frequency suppression.
ƵDC : Allowing all quantities to pass.
Ƶ AC : Intercepting DC quantities and attenuating
signals under 10Hz.
Ƶ Low Frequency Suppression : Intercepting DC
quantities and attenuating low frequency quantities
under 80kHz.
ƵHigh Frequency Suppression : Attenuating high
frequency quantities over 80kHz.
4.Pretrigger/Delayed Trigger : Data sampled before/
after triggering.
The trigger position is typically set at the horizontal
center of the screen. In this case, you are able to
view 6 divisions of pretrigger and delayed information.
Adjusting the horizontal position of the waveform allows
you to see more pretrigger information. By observing
pretrigger data, you can see the waveform before
trigger occurs. For example, you can detect the glitch
that occurs when the circuitry starts. Observation and
analysis of trigger data can help you identify the cause
of glitch.
UTD1000 User Manual
6. Display, Acquisition Modes and Automatic Measurement
Press [SCOPE] to access frequently used function options, as shown in the table below.
Table 2-5 Oscilloscope Function Menu
Function Menu
Acquisition mode
Parameter
measurement
Display
Cymometer
Setup
See Table 2-6
See Table 2-7
See Table 2-8
ON
OFF
Explanatory Note
Turning the frequency counter on/off
UTD1000 User Manual
Setting the Acquisition Mode
As shown in Table 2-6 below, press [SCOPE] then [F1] for the acquisition mode menu.
Table 2-6 Acquisition mode menu
Function Menu
Acquisition mode
Setup
Sampling
Peak detect
Average
Average number of times
(when average sampling
is selected)
Equivalent time
2~256
On
Off
Explanatory Note
Set to standard sampling mode.
Set to peak detect mode.
Set to average sampling and display the average number of times.
Set the average number of times in multiples of 2, i.e. 2, 4, 8, 16,
32, 64, 128, 256. To change the average number of times, use the
jog dial.
Set sampling to real time.
Set sampling to equivalent at a time base range of 5ns~100ns/div.
UTD1000 User Manual
By changing sampling setup, you can observe the consequent changes in waveform display. For example, if the signal
contains considerable noise, you will see the following displays when average sampling is not selected and when 32time average sampling is selected. For sampling waveform display please see Figure 2-20 and Figure 2-21.
Figure 2-20 Waveform without average sampling
Figure 2-21 Waveform display when 32-time
average sampling is selected
Note :
1. Use Real time sampling to observe single signals.
2. Use Equivalent sampling to observe high frequency cyclical signals.
3. To avoid mixed envelop, select Peak Detect.
4. To reduce random noise of the displayed signal, select average sampling and increase the average number of
times in multiples of 2, i.e selecting from 2 to 256.
UTD1000 User Manual
Definitions :
Normal sampling mode : The digital storage Oscilloscope acquires signal sample at equal and regular intervals to
reconstruct the waveform.
Peak detect mode : In this acquisition mode, the digital storage Oscilloscope identifies the biggest and smallest
values of the input signals at each sampling interval and uses these values to display the waveform. In effect, it can
acquire and display narrow pulse which would otherwise be omitted in the sampling mode. Noise seems to be more
significant in this mode.
Average mode : The digital storage Oscilloscope acquires several waveforms and takes the average value to display
the final waveform. You can use this mode to reduce random noise.
UTD1000 User Manual
Setting the Display Mode
Press [SCOPE] then [F3] to access the display menu shown in Table 2-7 below.
Table 2-7 Display menu
Function Menu
Type
Duration
Format
Setup
Vector
Dot
OFF
2s
5s
Infinity
YT
XT
Explanatory Note
Sampling points are linked for display.
Sampling points are directly displayed.
Waveform on the screen is refreshed at normal rate.
Waveform on the screen is maintained for 2 seconds and then refreshed.
Waveform on the screen is maintained for 5 seconds and then refreshed.
Waveform on the screen remains on display. New data will be added
continuously.
Operating mode of the Oscilloscope.
X-Y is the display mode; A input signal is X signal, B input signal is Y
signal.
UTD1000 User Manual
Definitions :
Display Type : Vector display fills the space between
adjacent sample points in the display. Dot display shows
only the sampling points.
Refresh rate : Refresh rate is the number of times the
digital storage Oscilloscope refreshes the waveform
display per second. The refreshing speed affects the
capability to observe signal movements speedily.
X-Y Mode
This mode can be activated only when Channel A and
Channel B are both on. After selecting the X-Y display
mode, the horizontal axis will display the A signal, while
the vertical axis will display the B signal.
Caution :
In the normal X-Y mode, you can adjust waveform
amplitude with VOLTS/DIV of the two channels.
Adjusting the s/DIV time base will result in a lissajous
figure of better display quality.
The following functions are disabled in the X-Y display
mode :
ƵAutomatic measurement mode
ƵCursor measurement mode
ƵReference or maths waveform
ƵVector display type
ƵTrigger control
Definitions :
Y-T Mode : In this mode the Y axis indicates voltage
and the X axis indicates time.
X-Y Mode : In this mode the X axis indicates Channel A
voltage and the Y axis indicates Channel B voltage.
Slow Scanning Mode : When horizontal time base
control is set at 50ms/div or slower, the unit will operate
in the slow scan sampling mode. When observing low
frequency signals in slow scanning mode, it is advised
to set channel coupling to DC.
S/ns : A horizontal scaling (time base) unit. If waveform
sampling is stopped (by pressing the [RUN/STOP]
button), time base control can expand or compress the
waveform.
UTD1000 User Manual
Parameter Measurement Setup
The notes below help you familiarize with the powerful automatic measurement functions of your digital storage
Oscilloscope. Press [SCOPE] then [F2] to access the parameter measurement menu shown in the following table.
Function Menu
Parameter
measurement
Customized
parameters
Number of parameters
Channel
Indicator
Table 2-8 Parameter measurement menu
Explanatory Note
Setup
Customized parameter The screen displays only user-defined parameters.
All 27 parameters are displayed.
All parameters
Close the automatic measurement function.
OFF
Up to 3 parameters can be displayed simultaneously on screen.
Parameter 1
Parameter 2
Parameter 3
Select with the jog dial.
Total 27
Display measurement value of Channel A.
A
Display measurement value of Channel B.
B
Close the automatic measurement display.
OFF
This function offers visual indication of the parameter being tested.
Parameter 1
Parameter 2
Parameter 3
UTD1000 User Manual
Example 1 :
To display the measurement peak-to-peak value of
Channel A, follow the steps below :
1.Press [A] to turn on Channel A.
2.Press [SCOPE] to enter the frequently used function
menu.
3.Press [F2] to enter the parameter measurement
options.
4.Press [F1] to select customized parameter for
parameter measurement.
5.Press [F2] to select parameter 1 as the customized
parameter.
6.Press [F3] then turn the jog dial to select peak-topeak value, then press the jog dial once to confirm. The
screen will exit from the current menu.
7.Press [F4] to select Channel A.
8.Press [F5] to set indicator to parameter 1.
Figure 2-22 Selected parameter measurement
Note : Customized parameters are for quick
parameter measurement. This device has 27
measurement parameters. In general use, the
user is not required to measure all parameters.
Only a few have to be tested. In this case, set the
parameters you require as customized parameters.
All such parameters will be displayed on the screen.
The peak-to-peak value is displayed in the top right
corner, as shown below :
UTD1000 User Manual
Automatic measurement of parameters
Your UTD1000 can automatically measure the following
voltage parameters :
Maximum value (Vmax) : The voltage value from the
highest point to ground (GND) of the waveform.
Minimum value (Vmin) : The voltage value from the
lowest point to ground (GND) of the waveform.
Top value (Vtop) : The voltage value from top to ground
(GND) of the waveform.
Base value (Vbase) : The voltage value from base to
ground (GND) of the waveform.
Middle value (Vmid) : Half of the amplitude value.
Peak-to-peak value (Vpp) : The voltage value from the
highest point to lowest point of the waveform.
Amplitude value (Vamp) : The voltage value from top to
base of the waveform.
Overshoot : The ratio value of the difference between
maximum value and top value to the amplitude value.
Preshoot : The ratio value of the difference between
minimum value and top value to the amplitude value.
Average value : Average amplitude of signals within 1
cycle.
Root mean square value (Vrms) : The effective value.
Energy generated by AC signal conversion during 1
cycle with respect to the DC voltage that produces
equivalent energy, i.e. root mean square value.
Your UTD1000 can automatically measure the following
time parameters :
RiseTime : The time taken by the waveform to rise from
10% to 90%.
FallTime : The time taken by the waveform to fall from
90% to 10%.
Positive Pulse Width (+Width) : The pulse width when
positive pulse is at 50% amplitude.
Negative Pulse Width (-Width) : The pulse width when
negative pulse is at 50% amplitude.
Rising delay (Rise) : Delayed time of the rising edge
from A to B.
Falling delay (Fall) : Delayed time of the falling edge
from A to B.
Positive duty ratio (+Duty) : Ratio of positive pulse width
to cycle.
Negative duty ratio (-Duty) : Ratio of negative pulse
width to cycle.
UTD1000 User Manual
Example 2 : To display all measurement values of
Channel A, follow the steps below :
1.Press [A] to select Channel A.
2.Press [SCOPE] to access the frequently used function
options.
3.Press [F2] to enter the measurement options.
4.Press [F1] to select all parameters for parameter
measurement.
All measurement parameters will be shown on screen,
as shown in Figure 2-23.
Frequency counter setup
Press [SCOPE] then [F4] to activate the frequency
counter, as shown below.
Figure 2-24 Hardware frequency counter
Figure 2-23 All measurement parameters
UTD1000 User Manual
7. Storage Setups and Screen Copy
As shown in Figure 2-25, press [SAVE] to access the storage menu.
Figure 2-25 Storage menu
You can save and recall waveforms and setup documents on the Oscilloscope’s internal memory and any USB device.
You can also save and recall waveform documents and setup documents on a USB device. For setup see the table
below.
Table 2-9 Storage menu
Function Menu
Save
Recall
Recorder
Close
Setup
See Table 2-10
See Table 2-11
See Table 2-12
Explanatory Note
Save the current setup or waveform.
Recall a saved setup or waveform.
Record and playback a waveform.
Close the recalled waveform.
UTD1000 User Manual
Save
In the storage menu, press [F1] to select the save function. For setup see the table below :
Table 2-10 Storage menu
Function Menu
Save
Medium
Position
Execute
Go Back
Setup
Setup
Waveform A
Waveform B
Internal
USB
1~10
Explanatory Note
Save the current setups of all menus.
Save the Channel A waveform.
Save the Channel B waveform.
Save the setup and waveform documents internally.
Save the waveform document on the USB device.
Set and select the storage position with the jog dial.
Run the previously selected operation.
Go back to the previous menu.
UTD1000 User Manual
Example 1: To request saving a Channel A waveform
both on the internal memory and the USB device.
1.Press [A] to select Channel A.
2.Press [SAVE] to access the storage menu, then press
[F1] to select the storage function.
3.Press [F1] to select “waveform A” as save type.
4.Press [F2] to select internal as the save medium.
5.Press [F3] to select position 2 with the jog dial.
6.Press [F4]. The waveform is successfully saved when
the “Saving.......” progress bar disappears.
To store the waveform on a USB device, repeat the
above steps but select USB as the save medium. The
save menu is as follows :
Screen copy
With this function, you can save the display interface on
the USB device.
Example 2 : To request saving the display interface on
the USB device.
1.Press [A] to turn on Channel A.
2.Insert the USB device into the USB jack.
3.Press and hold the [SAVE] button for 4 to 5 seconds
and then release. The “Saving.......” progress bar will
appear. The display interface is successfully saved on
the USB device when that progress bar disappears.
You can see the saved USB image on your computer.
It is saved in the root directory of the USB device under
the name UTD1000xx (xx means the serial number).
Figure 2-26 Waveform save menu
UTD1000 User Manual
Recall
In the storage menu press [F2] to select the recall function. For setup see Table 2-11.
Table 2-11 Recall menu
Function Menu
Recall
Source
Position
Execute
Go Back
Setup
Setup
Reference waveform
Internal
USB
1~10
Explanatory Note
Recall a saved setup.
Recall and display a saved waveform.
Set and select the recall position with the jog dial.
Run the previously selected operation.
Go back to the previous menu.
UTD1000 User Manual
Example 3 : To request recalling and displaying a waveform saved in example 1.
1.Press [SAVE] to access the storage menu, then press [F2] to select the recall function.
2.Press [F1] to select reference waveform as the recall type.
3.Press [F2] to select internal as the save medium.
4.Press [F3] to select position 2 with the jog dial.
5.Press [F4]. The waveform will be recalled to screen when the “Loading .......” progress bar disappears.
Record
In the storage menu press [F3] to select the record function. For setup see Table 2-12.
Function Menu
Recorder
Replay
Load
Save
Go Back
Setup
ON
OFF
See Table2-13
USB document
(1-10)
USB document
(1-10)
Table 2-12 Recorder menu
Explanatory Note
Turn the waveform recording function on and off.
Playback the recorded waveform on the screen.
Import the recorded waveform document on the USB
device to the Oscilloscope.
Save the recorded waveform on the USB device.
Go back to the previous menu.
UTD1000 User Manual
Example 4 : To request recording a Channel A waveform
saved and saving it on the USB device.
1.Press [SAVE] to access the storage menu, then press
[F3] to select the record function.
2.Press [F1] to activate the waveform recording
function. The system enters the recording mode. The
number of screens being recorded is shown in the top
right corner.
3.When all specified screens are recorded, press [F1] to
close the recording function. All recorded waveforms will
be saved internally.
4.Insert the USB device and press [F4] to access the
record and save menu. Press [F2] to activate the “USB
document” option, then select “3” with the jog dial.
5.Press [F4]. The waveform is successfully recorded
on the USB device when the “Saving.......” progress bar
disappears.
Note : Your UTD1000 Series Digital Storage
Oscilloscope can record up to 1,000 screens of
waveform data. If any of the following operations
is activated during recording, the Oscilloscope will
restart recording from screen 1 again :
ƵChanging vertical range of the signal
ƵChanging horizontal time base of the signal
ƵChanging horizontal position of the signal
ƵChanging vertical position of the signal
ƵAutoset the signal
UTD1000 User Manual
Waveform playback
In the record menu press [F2] to access the waveform playback function, as shown in the table below :
Table 2-13 Replay menu
Function Menu
Total
Step
Play
Go Back
Setup
-/-
Explanatory Note
The number of screens being played and total number of screens.
Select single screen playback with the jog dial.
Play and pause a recorded waveform document.
Go back to the previous menu.
Example 5 : To request recalling a recorded waveform document saved on the USB device from Example 4 to the
Oscilloscope and playback.
1.Insert the USB device and press [SAVE] to access the storage menu. Press [F3] to select the recording function.
2.Press [F3] to select “Load”, then press [F2] to activate the “USB document” option. Select “3” with the jog dial and
press [F4]. The playback waveform will appear on screen when the “Loading.......” progress bar disappears.
3.If [F3] is pressed again, all recorded waveform screens will be displayed. Press [F3] to stop playback, then select
playback of a certain screen of waveform with the jog dial, as shown below :
UTD1000 User Manual
8. Cursor Measurement
Figure 2-27 Recorded waveform replay
Press [CURSOR] to display the cursor measurement
menu, then press [F1] to activate the cursor. The
[CURSOR] menu offers two cursor measurement
modes : voltage and time. When measuring voltage,
press [F2] on the front panel and the jog dial to adjust
the positions of the two cursors forƸV measurement.
Likewise, by selecting time, you can measure Ƹt.
Voltage/time measurement modes : Positions of cursor
1 and cursor 2 can be adjusted with the jog dial and [F2]
key. Press [F2] to make the cursor move in solid line,
then adjust it with the jog dial to a desired position. If
you require to move two cursors simultaneously, press
[F4] to turn the “Co-Movement” function ON.
The cursor measurement value is displayed in the top
left corner.
UTD1000 User Manual
9. Utility Function Setup
Press [USER] to pop up the utility system setup menu, as shown in Table 2-14
Table 2-14 Utility menu
Function Menu
Battery
-saving
Option
Display
Language
Setup
OFF
5 min
10 min
15 min
20 min
Color
Black&White
Explanatory Note
When operating with battery, the Oscilloscope will power off at
the set time to save battery power if the unit remains idle for
a specified period of time. If DC power adaptor is connected,
this energy-save mode is disabled.
ㅔԧЁ᭛
㐕储Ё᭛
English
Select the interface language.
Set the interface design of the testing device.
There are three designs to choose from.
UTD1000 User Manual
Function Menu
Help
Auto calibration
Version
Bright
Table 2-14 Utility menu(continued)
Setup
Explanatory Note
ON
OFF
Exit
Sure
Turn the help function on/off.
Cancel auto system calibration.
Run auto system calibration.
Display the software and hardware version of the Oscilloscope.
Adjust the display brightness.
Setting the Battery-saving mode
The initial auto power-off time is 10 minutes. To adjust this follow the steps below :
1.Press [USER] for the utility menu.
2.Press [F1] to access the user option menu.
3.Select the energy-save off time with the jog dial.
4.Press the jog dial to confirm until the current menu is closed
Auto Calibration :
You can correct measurement errors caused by environmental changes with the auto calibration function. This process
can be run selectively when necessary. To make calibration more accurate, power on your Oscilloscope and allow 20
minutes to warm up. Then press the [USER] button then [F3] and follow the on-screen prompt to operate.
UTD1000 User Manual
10. Operating Maths Functions
Maths functions are displays of +, -, ×,÷and FFT mathematical results of Channel A and Channel B.
Press [MATH] then [F1] to select FFT, +, -, ×, ÷or OFF as the mathematics type. The menu is as shown in Table 2-15.
Table 2-15 Maths function menu
Function Menu
Maths
Signal source 1
Signal source 2
Vertical range
Move
Setup
+
×
÷
OFF
A
B
A
B
5mV-50V
Explanatory Note
Signal source 1 + Signal source 2
Signal source 1 - Signal source 2
Signal source 1 x Signal source 2
Signal source 1 ÷ Signal source 2
Close the mathematics function
Set signal source 1 as Channel A waveform
Set signal source 1 as Channel B waveform
Set signal source 2 as Channel A waveform
Set signal source 2 as Channel B waveform
Display the current mathematics range and adjust with the jog dial.
You can move the mathematics waveform with the jog dial.
UTD1000 User Manual
Press [MATH] then [F1] select FFT as the mathematics type. The menu is as shown in Table 2-16.
Table 2-16 FFT function menu
Function Menu
FFT
Signal source
Horizontal range
Vertical range
Move
Setup
Hanning
Hamming
Blackman
Rectangle
A
B
305.1 mHz244.1MHz
5mV-50V
Explanatory Note
Set Hanning window function.
Set Hamming window function.
Set Blackman window function.
Set Rectangle window function.
Set A as the mathematics waveform.
Set B as the mathematics waveform.
Display the frequency per division (f/div) of the current horizontal axis.
Display the current FFT range and adjust with the jog dial.
You can move the mathematics waveform with the jog dial.
UTD1000 User Manual
FFT spectrum analysis
By using the FFT (Fast Fourier Transform) algorithm,
you can convert time domain signals (YT) into frequency
domain signals. With FFT, you can conveniently observe
the following types of signals :
● Measure the harmonic wave composition and
distortion of the system
● Demonstrate the noise characteristics of the DC
power
● Analyse oscillation
How to operate FFT functions
Signals with DC quantities or offset signals will cause
error or offset of FFT waveform quantities. To reduce
DC quantities, select “AC” coupling. To reduce random
noise and frequency aliasing resulted by repeated
or single pulse event, set the acquiring mode of your
Oscilloscope to “Average” acquisition.
Select the FFT Window
Assuming the YT waveform is constantly repeating
itself, the Oscilloscope will carry out FFT conversion
of time record of a limited length. When this cycle is a
whole number, the YT waveform will have the same
amplitude at the start and finish. There is no waveform
interruption. However, if the YT waveform cycle is not a
whole number, there will be different amplitudes at the
start and finish, resulting in transient interruption of high
frequency at the connection point. In frequency domain,
this is known as leakage. To avoid leakage, multiply
the original waveform by one window function to set
the value at 0 for start and finish compulsively. For
application of the window function, please see the table
below :
UTD1000 User Manual
FFT Window
Hanning
Hamming
Blackman
Rectangle
Table 2-17 FFT function window
Feature
Most Suitable Measurement Item
Frequency recognition rate is better than
the rectangle window, but amplitude
Sine, cyclical and narrow-band random noise.
recognition rate is poorer.
Temporary or fast pulse. Signal level varies greatly
Frequency recognition rate is marginally
before and after.
better than Hanning window.
Mainly for single-frequency signals to search for
The best amplitude recognition rate and
higher-order harmonic wave.
the poorest frequency recognition rate.
Temporary or fast pulse. Signal level is generally
The best frequency recognition rate,
the same before and after. Equal sine wave of very
the worst amplitude recognition rate.
Basically similar to a status without
adding window.
similar frequency. There is broad-band random
noise with slow moving wave spectrum.
Definition :
FFT recognition rate : It means the quotient of the sampling and math points. When maths point value is fixed, the
sampling rate should be as low as possible.
Nyquist frequency : To rebuild the original waveform, at least 2f sampling rate should be used for waveform with a
maximum frequency of f. This is known as Nyquist stability criterion, where f is the Nyquist frequency and 2f is the
Nyquist sampling rate.
UTD1000 User Manual
11. Window Extension
Window extension can be used to zoom in a band of
waveform to check image details. The window extension
setting must not be slower than that of the main time
base, as illustrated by the following figure
Horizontal extension
In the window extension mode, the display is divided
into two zones as shown in Figure 2-28. The upper
part displays the original waveform. You can move the
horizontally extended part of this zone left and right with
the
button, or enlarge and reduce the selected
zone with the
button.
The lower part is the horizontally extended waveform of
the selected original waveform zone. Please note that
the recognition rate of extended time base relative to the
main time base is now higher (as shown in the above
figure). Since the waveform shown in the entire lower
part corresponds to the selected zone in the upper part,
you can increase the extended time base by pressing
the
button to decrease the size of the selected
zone. In other words, you can increase the multiple of
waveform extension.
Figure 2-28 Screen display with window extended
UTD1000 User Manual
12. Hiding the Menus
Use the [CLEAR/MENU] key to hide the current menu.
To display the menu, press this key again.
Table 2-18 Auto setup menu
Function
Acquisitionmode
Display format
SEC/DIV
13. Using the Run Button
RUN/STOP
There is a [RUN/STOP] button on the front panel.
When this button is pressed your Oscilloscope stops to
acquire data. To restart data acquisition press it again.
Auto Setup :
Auto Setup can simplify operation. Press [AUTO]
and the Oscilloscope can automatically adjust the
vertical deflection factor and horizontal time base
range according to the amplitude and frequency of the
waveform, so as to ensure stable waveform display.
When the Oscilloscope is in auto setup mode, the
system setup is as shown below :
VOLT/DIV
Trigger mode
Trigger level
Trigger coupling
Trigger source
Trigger slope
Trigger type
Setup
Sampling
YT
Adjusted according to signal
frequency.
Adjusted according to signal
amplitude.
Edge
Mid-point of the signal
AC
Set to A but if there is no signal
in A and a signal is applied to B,
it will be set to B.
Rising
Auto
UTD1000 User Manual
14. Multimeter Measurement
Operation instructions : Open the multimeter function menu by pressing [METER]. Setup is as follows.
Table 2-19 Multimeter measurement menu
Function Menu
Type
Range mode
Setup
DC voltage
AC voltage
Resistance
Continuity
Diode
Capacitance
DC current
AC current
Auto
Manual
Range
Trend plot
Coord bias
On/off
Explanatory Note
Select the DC voltage measurement mode.
Select the AC voltage measurement mode.
Select the resistance measurement mode.
Select the Continuity measurement mode.
Select the diode measurement mode.
Select the capacitance measurement mode.
Select the DC current measurement mode.
Select the AC current measurement mode.
The multimeter automatically selects an appropriate range for measurement.
The user manually selects an appropriate range for measurement.
Display the current measurement range.
Turn the trend plot function on/off. This function records the moving trends of
voltage, current, resistance within a specified period.
When trend plot is on, the zero line value enhances the trend plot resolution.
UTD1000 User Manual
Chapter 3
Practical Example Illustrations
Illustration 1 : Measuring simple signals
To observe and measure an unknown signal in the
circuit, and to quickly display and measure the signal’s
frequency and peak-to-peak value.
1. To quickly display this signal, follow the steps
below :
ķIn the probe menu, set the attenuation factor to 10X
and set the switch on the probe to 10X.
ĸConnect the Channel A probe to the circuitry point to
be measured.
Ĺress [AUTO].
The Oscilloscope will carry out auto setup to optimise
waveform display. In this status, you can further adjust
the vertical and horizontal range until you get the
desired waveform display.
2.Voltage and time parameters for automatic
measurement
Your Oscilloscope can automatically measure most
display signals. To measure signal frequency and peak-
to-peak value, follow the steps below :
ķPress [SCOPE] for the frequently used function
menu.
ĸ Press [F2] to enter the parameter measurement
menu, then press [F1] to set parameter measurement to
defined parameter.
ĹPress [F2] to set defined parameter to “parameter 1”.
ĺ Press [F3] to select the “frequency” parameter with
the jog dial, then press [F4] to select channel A.
ĻPress [F2] set defined parameter to “parameter 2”.
ļ Press [F3] to select the “peak-to-peak” parameter
with the jog dial, then press [F4] to select channel A.
UTD1000 User Manual
Frequency and Peak-to-peak measurements will now
appear in the top left corner of the screen.
Figure 3-1 Automatic measurement
Illustration 2 : Observing the delay caused
by a sine wave signal passes through the
circuit
As in the previous scenario, set the probe attenuation
factor of the probe and Oscilloscope channel to 10X.
Connect Channel A to the circuit signal input terminal.
Connect Channel B to the output terminal.
Steps :
1. To display Channel A and Channel B signals :
ķPress [AUTO].
ĸ Continue to adjust the horizontal and vertical range
until you get the desired waveform display.
Ĺ Press the Channel A vertical displacement key to
adjust Channel A’s vertical position.
ĺ Press the Channel B vertical displacement key
to adjust Channel B’s vertical position so that the
waveforms of Channel A and B do not overlap. This will
make observation easier.
2.Observing the delay caused by a sine wave signal
passes through the circuit and observing waveform
changes.
UTD1000 User Manual
ķWhen measuring channel delay automatically, press
[SCOPE] to display the frequently used function
menu.
ĸ Press [F2] to enter the parameter measurement
menu. Press [F1] to set parameter measurement to
defined parameter.
ĹPress [F2] to set defined parameter to “parameter 1”
ĺ Press [F3] to select “rising delay” parameter with
the jog dial. You can see the delay value under “rising
delay” in the top left corner of the screen.
Figure 3-2
Illustration 3 : Acquiring single signals
The advantage and special feature of your digital
storage Oscilloscopes lie in its ability to easily acquire
non cyclical signals like pulse and glitch. To acquire a
single signal, you must have transcendental knowledge
of that signal to set the trigger level and trigger edge.
For example, if the pulse is a logical signal of TTL level,
the trigger level should be set at about 2V and the
trigger edge should be set to rising edge trigger. If you
are not certain about the signal, you can observe it by
automatic or normal trigger to determine the trigger level
and trigger edge.
Steps :
1.As in the previous illustration, set the attenuation
factor of the probe and Channel A.
2.Carry out trigger setup.
ķPress [TRIGGER] to display the trigger setup menu.
ĸIn this menu, use [F1]~[F5] and the jog dial to set the
trigger type to edge, set trigger source to A, set trigger
coupling to AC, set trigger type to single and set edge
polarity to rising.
UTD1000 User Manual
Ĺ Adjust horizontal time base and vertical range to an
appropriate range.
ĺTurn the jog dial to get the desired level.
Ļ Press [RUN/STOP] and wait for a signal that meets
the trigger condition. If any signal reaches the set
trigger level, the system will sample once and display
it on the screen. By using this function you can easily
acquire any occasional event. For example, when a
sudden glitch of relatively big amplitude is acquired :
set the trigger level to just higher than the normal signal
level. Press [RUN/STOP] and begin waiting. When a
glitch occurs, the machine will automatically trigger
and record the waveform immediately before and after
triggering. By turning the horizontal displacement key,
you can change the trigger position horizontally to
achieve negative delay trigger of various lengths for
easy observation of waveform occurring before the
glitch.
Figure 3-3 Single signal trigger
UTD1000 User Manual
Illustration 4 : Reducing random noise of
signals
If the signal being measured is stacked with random
noise, you can adjust the setups of your Oscilloscope to
filter or reduce the noise, so it will not cause interference
to the signal during measurement. (Waveform is shown
below)
Figure 3-4 Reducing random noise of signals
Steps :
1.As in the previous illustration, set the attenuation
factor of the probe and Channel A.
2.Connect the signal to ensure stable display of
waveform. See the previous illustration for operation
instruction. See the previous chapter for guidance on
adjusting the horizontal time base and vertical range.
3.Improving trigger by setting trigger coupling.
ķPress [TRIGGER] to display the trigger setup menu.
ĸPress [F3] to set trigger coupling in the trigger setup
menu to low frequency suppression or high frequency
suppression. By selecting low frequency suppression a
high-pass filter is set up. It filters low frequency signal
quantities under 80kHz and allows high frequency signal
quantities to pass through. If you select high frequency
suppression a low-pass filter is set up. It filters high
frequency signal quantities higher than 80kHz and
allows low frequency signal quantities to pass through.
By setting low frequency suppression or high frequency
suppression, you can suppress low frequency or high
frequency noise respectively and achieve a stable
trigger.
4.Reducing display noise by setting the acquisition
mode.
If the signal being measured is stacked with random
noise and the waveform is too coarse as a result, you
UTD1000 User Manual
can use the average acquisition mode to eliminate
random noise display and reduce the size of waveform
for easy observation and measurement. After getting the
mean, random noise is reduced and details of the signal
are clearer. Follow the steps : Press [SCOPE] then [F1]
to set acquisition mode to “Average”, then turn the jog
dial to adjust the average number of times in multiples
of 2, i.e. 2 to 256, until you get the desired waveform
display that meets observation and measurement
requirements. (See the figure below)
Illustration 5 : Using cursors for measurement
Yo u r O s c i l l o s c o p e c a n m e a s u r e 2 7 w a v e f o r m
parameters automatically. All auto parameters can be
measured with the cursors. By using cursors, you can
quickly measure the time and voltage of a waveform.
Measuring the width of a single pulse within the pulse
signals
To measure the width of a single pulse within the pulse
signals, follow the steps below :
1.Press [CURSOR] to display the cursor measurement
menu.
2.Press [F1] to set cursor type to time.
3.Move cursor 1 to the rising edge of the single pulse
with the jog dial.
4.Press the jog dial to select cursor 2, then turn the jog
dial to move cursor 2 to the 2nd peak value of the single
pulse. The Ƹvalue will be displayed in the cursor menu,
i.e. the width of that pulse, as shown in the figure below.
Figure 3-5 Signal noise suppressed
Caution : In the average acquisition mode the waveform
display will update at a slower rate. This is normal.
UTD1000 User Manual
Illustration 6 : Using the X-Y function
Figure 3-6 Measuring pulse width with the cursors
Note : When using the cursor to measure voltage,
follow step 2 only and set the cursor type to voltage.
To check the phase difference between signals of the
two channels.
Example : To measure the phase variation when
a signal passes through the circuit, connect your
Oscilloscope to the circuit and monitor the input and
output signals. To check the circuit’s input and output in
the X-Y coordinate mode, follow the steps below :
1.Set the attenuation factor of the channel probe to 10X.
Set the switch of the probe to 10X.
2.Connect the Channel A probe to the input terminal of
the network. Connect the Channel B probe to the output
terminal of the network.
3.If the channel is not on, press the [A] and [B] menu
button then press [F1] to enable the two channels.
4.Press [AUTO].
5.Adjust the vertical amplitude range to make the
displayed amplitude of the two channels about equal.
6.Press the [SCOPE] menu key then [F3] to recall the
display control menu.
7.Press the jog dial to select X-Y. The Oscilloscope will
UTD1000 User Manual
display the circuit’s input and output characteristics in a
Lissajous figure.
8.Adjust the vertical amplitude range and vertical
position to achieve the best waveform.
9.Using the elliptic Oscilloscope display graph to
observe, measure and calculate the phase difference.
(See the figure below)
The signal must be horizontally center
If sin θ = A/B or C /D ,
θ is the angle of disparity between the channels.
For definitions of A, B, C, D see the above figure.
Calculating with this formula, the angle of disparity is
θ= ±arcsin (A /B) or θ= ±arcsin (C /D).
If the elliptic main axis is within quadrants I and III, the
angle of disparity should be within quadrants I and IV, i.e.
inside (0~ π/2) or (3π/2 ~ 2π).
If the main axis is within quadrants II and IV, the angle
of disparity should be within quadrants II and III, i.e.
inside (π/2 ~ π) or (π ~ 3π/2).
Furthermore, if the frequencies and phase differences
of two signals being measured are exact multiples,
you can calculate the frequency and phase correlation
between the two signals.
Figure 3-7 Lissajous figure
UTD1000 User Manual
Illustration 7 : Video signal triggering
To observe an individual video circuit, use the video
trigger function to obtain a stable display of video output
signal.
Video field triggering
To trigger in the video field, follow the steps below :
1.Press [TRIGGER] to display the trigger menu.
2.Press [F1] to set the type to video.
3.Press [F2] to set trigger source to A.
4.Press [F3] select PAL as the video standard.
5.Press [F4] to select odd field or even field
synchronization.
6.Adjust the horizontal time base for a clear waveform
display.
UTD1000 User Manual
Figure 3-8 Video odd field triggering
Video line triggering
To trigger on the video line, follow the steps below :
1.Press [TRIGGER] to display the trigger menu.
2.Press [F1] to set the type to video.
3.Press [F2] to set trigger source to A.
4.Press [F3] select PAL as the video standard.
5.Press [F4] to select defined line synchronization.
6.Make the signal trigger on any particular line by
turning the jog dial.
7.Adjust the horizontal time base for a clear waveform
display.
Figure 3-9 Video line triggering
UTD1000 User Manual
Chapter 4
System Prompts and Trouble-shooting
1. Definitions of System Prompts
2. Troubleshooting
Adjustment at Ultimate Limit : This informs you
that the multifunction control knob has reached its
adjustment limit in the current status. No further adjust
is possible. When the vertical deflection factor switch,
time base switch, X shift, vertical shift and trigger level
adjustments have reached their ultimate limits, this
prompt will appear.
USB Device Installed : After a USB device is plugged
into the Oscilloscope, this prompt appears when the
connection is valid.
USB Device Unplugged : After a USB key is unplugged
from the Oscilloscope, this prompt appears.
Saving...... : When the Oscilloscope is saving a
waveform, this prompt is shown on the screen. A
progress bar appears at the bottom.
Loading...... : During waveform recall, this prompt is
shown on the screen. A progress bar appears at the
bottom.
Function Disabled : This prompt appears when [ZOOM]
is pressed at 5ns-100ns time base.
1.If the screen of your Oscilloscope remains black
without any display after powering on, follow the steps
below to find the cause :
ķCheck if the power switch is properly pressed.
ĸ Plug in the DC power adaptor and check if the
battery is out.
ĹCheck the power cable connection.
ĺRestart the unit after performing the above checks.
Ļ If the unit still fails to power on, contact UNI-T to
request service.
2.If no waveform is displayed after you have acquired a
signal, follow the steps below to find the cause :
ķ Check whether the probe is properly connected to
the signal lead.
ĸCheck whether the signal lead is properly connected
to the BNC (channel adaptor).
Ĺ Check whether the probe is connected properly to
the object to be measured.
ĺ Check whether the object for measurement is
generating signals (connect the channel with signals to
UTD1000 User Manual
the questionable channel to find the cause).
ĻRestart the acquisition process.
3.The measurement voltage amplitude value is 10 times
larger or smaller than the actual value :
ķ Check if the channel attenuation factor corresponds
with the probe attenuation you have chosen.
4.There is waveform display but it is not stable :
ķ Check the trigger source setup in the trigger menu.
See whether it is the same as the actual signal input
channel.
ĸCheck the trigger type : Use edge trigger for ordinary
signals and video trigger for video signals. Stable
waveform display is achieved only when the correct
trigger mode is selected.
Ĺ Try changing the coupling display to high frequency
suppression or low frequency suppression to filter
any high or low frequency noise that is interfering with
triggering.
5.No display after pressing [RUN/STOP] :
ķCheck if the trigger mode is set to normal or single in
the menu, and whether the level exceeds the waveform
range. If so, move the level to the centre or set trigger
mode to AUTO.
ĸPress [AUTO] to complete the setup.
6.Display speed is slow after average sampling time is
enabled :
ķ If average sampling is carried out for more than 32
times, the display speed will drop. This is normal.
ĸYou can reduce the intervals of average sampling.
7.Trapezoidal waveform display :
ķ This is normal. The reason is possibly horizontal
time base range is too low. You can improve horizontal
pixel aspect ratio and enhance the display quality by
increasing the horizontal time base.
ĸIf the display type is vector, the connection between
sampling dots may cause a trapezoidal waveform. Set
the display type to dot to solve this problem.
UTD1000 User Manual
Chapter 5
Service and Support
1. Product Program Upgrade
You can obtain the program upgrade pack from our
marketing department or download it online from our
website. Use the built-in program upgrade system of the
Oscilloscope to upgrade the program so that it is the
latest version released by Uni-T.
Preparations for upgrade :
1.You have to own an Oscilloscope manufactured
by Uni-T. To check the model, hardware version
and software version of the unit, go to the system
information sub-menu under the user menu.
2.The software upgrade pack that corresponds with
the model and hardware version of the Oscilloscope
requiring upgrade is available online from our website
or from our marketing department. The software version
should be higher than the one currently installed.
3.Prepare a USB device (disk format FAT). After
decompressing the program upgrade pack, save it in
the USB root directory. The program upgrade document
has the suffix “uts”.
Requirements
1.The product model of the program upgrade pack must
be the same with the Oscilloscope to be upgraded.
2.The hardware version of the program upgrade pack
must be the same with the Oscilloscope to be upgraded.
3.The software version of the program upgrade pack
must be higher than or same as the software version of
the Oscilloscope to be upgraded.
4.The FLASH type of the program upgrade pack must
be the same as the Oscilloscope to be upgraded.
Program upgrade
1.Power off the Oscilloscope then insert the USB device
with the program upgrade document into the USB
HOST jack.
2.Press [POWER] to power on the Oscilloscope and
enter the program upgrade system welcome screen, as
shown in Figure 5-1. The following message be appear,
“Welcome to the USB program upgrade system. Please
press [F5] to start upgrade or [F1] to cancel”.
UTD1000 User Manual
Figure 5-1
3.Press [F5] as shown in Figure 5-1 to start the program
upgrade operation. If there is only one upgrade pack in
the USB root directory, go directly to step 4. Otherwise
the upgrade document selection screen shown in Figure
5-2 will pop up. Use the jog dial to select the document
you need, then press [F5] to confirm. To exit upgrade,
press [F1].
Figure 5-2
4.The upgrade system will determine whether the
upgrade document meets upgrade criteria. When done,
the interface shown in Figure 5-3 appears to prompt :
“Are you sure to update?”
UTD1000 User Manual
Figure 5-3
5.On the screen shown in Figure 5-3, press [F5] to
confirm you require to upgrade the program. The screen
shown in Figure 5-4 will appear with the following
prompt : “CATION : It will cost 3-5 minute. When
updating don’t power off, otherwise unknown exception
will happen! Please waiting for update …data …%”
Figure 5-4
Caution : If power is disconnected or the unit is
turned off during this stage of program upgrade,
the Oscilloscope will fail to function normally. In
that case you have to reinsert the USB device and
complete the upgrade step by step as prompted
before normal operation can be resumed. In the
event of upgrade failure, contact us immediately.
UTD1000 User Manual
6.When upgrade progress reaches 100%, display
will change to OK to indicate success of the current
program upgrade task. A successful upgrade prompt
as shown in Figure 5-5 will appear : “Congratulation,
Update process Success! Please pull out U-disk and
reboot.”
Caution : When you restart the Oscilloscope after
successful upgrade, the system will initiate itself.
It will take 30 seconds to 1 minute for the operation
screen to appear.
Abnormality prompts :
Program upgrade may fail due to various reasons.
Below are some common causes for upgrade failure
and the prompts that help users to upgrade the software
program successfully. If upgrade fails, remove the
USB device and restart the Oscilloscope. The unit will
still function normally. To repeat the upgrade process
again, insert the USB device and carry out the steps in
“Program upgrade” above.
Figure 5-5
1.During the upgrade process, you can cancel upgrade
and exit the upgrade system by pressing [F1] as guided
by the on-screen instructions. The prompt shown in
Figure 5-6 will appear : “Please pull out U-disk and
reboot.”
UTD1000 User Manual
Figure 5-6
2.If the USB device is removed after [F5] is pressed to
continue program upgrade, the prompt in Figure 5-7 will
appear : “E11 : U-disk has pulled out! Please reboot.”
Figure 5-7
3.During upgrade, if the system cannot find the upgrade
document in the USB root directory, the message in
Figure 5-8 will appear : “E13 : Can’t find valid update
file at U-disk root directory! Please sure there is update
file at U-disk’s root directory, Please pull out U-disk and
reboot.”
UTD1000 User Manual
Figure 5-8
4.During upgrade, if the document in the USB root
directory has been damaged and cannot be read, you
will see the prompt shown in Figure 5-9 : “E14: We are
sorry for this case, please contact with us. Please pull
out U-disk and reboot.”
Figure 5-9
5.During upgrade, if the FLASH of the program upgrade
document you copy or select is different from that of the
Oscilloscope, the prompt in Figure 5-10 will appear:“E25
The package’s flash type isn’t same with this DSO!
Please read user manual. get system information in
detail. Please pull out U-disk and reboot.”
UTD1000 User Manual
Figure 5-10
6.During upgrade, if the system reads that the format of
the program upgrade pack document is different from
that of the Oscilloscope, the prompt in Figure 5-11 will
appear : “E27:Sorry, the package format isn’t correct!
Please pull out U-disk and reboot.”
Figure 5-11
7.If the model of the program upgrade pack is
incompatible with the Oscilloscope, the prompt in Figure
5-12 will appear : “E23 : The package’s model No. isn’t
same with this DSO! Please read user manual, get
system information in detail. Please pull out U-disk and
reboot.”
UTD1000 User Manual
Figure 5-12
8.If the hardware version of the program upgrade pack
is incompatible with the Oscilloscope, the prompt in
Figure 5-13 will appear : “E24 : The package’s hardware
Ver. isn’t same with this DSO! Please read user manual,
get system information in detail. Please pull out U-disk
and reboot.”
Figure 5-13
9.If the software version of the upgrade document is
lower than that of the Oscilloscope, the prompt in Figure
5-14 will appear “E26: Sorry, this package’s version is
too low to update. Please read user manual, get system
information in detail. Please pull out U-disk and reboot.”
UTD1000 User Manual
Figure 5-14
10.During upgrade, if you wish to cancel upgrade after
the system has determined that the upgrade pack is
correct, press [F1] to exit the upgrade system. The
prompt in Figure 5-15 will appear : “Please pull out
U-disk and reboot.”
Figure 5-15
11.If an unknown error occurs when the user is updating
the program, the prompt in Figure 5-16 will appear :
“E31: We are sorry for this case, please contact with us.
Please pull out U-disk and reboot.”
UTD1000 User Manual
Figure 5-16
Caution : If this error message appears during
upgrade, download a new program upgrade pack
and start upgrade all over again. Your Oscilloscope
has to be successfully upgraded to resume normal
operation. If you cannot upgrade the program and
use your Oscilloscope normally, please read the
user manual and contact us for help.
UTD1000 User Manual
Chapter 6
Appendixes
Appendix A : Performance Indicators
Unless otherwise specified, all technical specifications apply to probes with an attenuation setting of 10X and the
UTD1000 Series Digital Oscilloscopes.
To verify that your Oscilloscope meets specifications, it must first meet the following conditions :
Ƶ The Oscilloscope must have been operating continuously for thirty minutes within the specified operating
temperature.
ƵI f the operating temperature changes by more than 5°C, you must perform the “Self Cal” operation, accessible
through the System Functions menu. All specifications are guaranteed unless noted “Typical”.
Technical Indicators :
Sampling Modes
Sampling modes
Sampling rates
Sampling
Average
Real time
250MS/s (UTD1025C/
UTD1042C/UTD1062C)
500MS/s(UTD1082C/UTD1102C)
1GS/s (UTD1152C/UTD1202C)
Sampling, peak detect, average
Equivalent
25GS/s
When all channels have made N samplings simultaneously, N is
selectable from 2, 4, 8, 16, 32, 64, 128 to 256.
UTD1000 User Manual
Input
Input coupling
Input impedance
Probe attenuation factor
Maximum input voltage
Time delay between channels (Typical)
Horizontal
Waveform interpolation
Recording length
Storage depth
Scanning range (s/div)
Accuracy of sampling
rate and delay time
Time interval (ƸT) measurement
accuracy (full bandwidth)
DC, AC, GND
1MΩ±2% in parallel with 21pF±3pF.
1X, 10X, 100X, 1000X
400V (DC + AC Peak)
50ps
Linear
2 x 512K sampling point
7.5k
2ns/div-50s/div (200MHz, 150MHz);
5ns/div-50s/div (100MHz, 80MHz, 60MHz, 40MHz);
5ns/div-50s/div (25MHz)
At 1-2-5 increment.
±50ppm (any time interval ≥1ms)
Single : ± (1 sampling time interval + 50ppm x reading + 0.6ns);
> 16 average values : ± (1 sampling time interval + 50ppm x reading + 0.4ns).
UTD1000 User Manual
Vertical
Model
A/D converter (A/D)
Deflection factor (V/div)
Range (V/div)
Displacement range
Analog bandwidth
Single bandwidth
Selectable analog
bandwidth limit (Typical)
Low frequency response
(AC coupling, -3dB)
Rise time
DC gain accuracy
UTD1202C UTD1152C
UTD1102C UTD1082C UTD1062C UTD1042C UTD1025C
8-bit resolution
5mV/div ~ 50 V/div at input BNC
± 10 div
200MHz
100MHz
150MHz
100MHz
100MHz
50MHz
80MHz
50MHz
60MHz
25MHz
40MHz
25MHz
25MHz
25MHz
20MHz
±10Hz at BNC
≤1.8ns
≤2.3ns
≤3.5ns
≤4.3ns
≤5.8ns
≤8.7ns
≤14ns
When vertical sensitivity is 5mV/div : ±4% (sampling or average sampling mode);
When vertical sensitivity is 10mV/div~50V/div : ±3% (sampling or average
sampling mode)..
UTD1000 User Manual
Vertical
DC measurement accuracy
(average sampling mode)
Voltage difference (ƸV)
measurement accuracy
(average sampling mode)
When vertical shift is zero and N ≥16 :
± (4% x reading + 0.1 div + 1mV) and 5mV/div is selected;
± (3% x reading + 0.1 div + 1mV) and 10mV/div~50V/div is selected;
When vertical shift is not zero and N ≥16 :
± (3% x (reading + vertical shift reading) + (1% x vertical shift reading)) + 0.2
div). Set from 5mV/div to 200mV/div plus 2mV;
Setup value > 200mV/div to 50V/div plus 50mV.
Under identical setup and environmental conditions, the voltage difference
(ƸV) between two points of the waveform after the average of ≥16
waveforms acquired waveforms is taken : ± (3% x reading + 0.05 div).
UTD1000 User Manual
Trigger
Trigger sensitivity
Trigger level range
Trigger level accuracy (Typical) applied
on signals of ≥20ns rise or fall time
Pretrigger capability
Holdoff range
Set level to 50% (Typical)
Edge Trigger
Edge type
Pulse Trigger
Trigger mode
Pulse width range
≤1 div
± 5 div from the centre of the screen
± (0.3 div x V/div) (within ± 4 div from the centre of the screen)
Normal mode/scanning mode, pretrigger/delayed trigger. Pretrigger
depth is adjustable.
40ns – 1.5s
Input signal frequency ≥50Hz
Rise, Fall
(Greater than, less than, or equal to) positive pulse; (Greater than,
less than, or equal to) negative pulse.
40ns – 6.4s
UTD1000 User Manual
Video Trigger
Trigger sensitivity (video trigger, typical)
2 div peak-to-peak signal format and line/
field frequency (video trigger type)
2 div peak-to-peak
Supports standard NTSC and PAL
Line range : 1-525 (NTSC) and 1-625 (PAL)
Alternate Trigger
A Trigger
B Trigger
Edge, pulse, video
Edge, pulse, video
UTD1000 User Manual
Measurement
Cursor
Manual mode
Voltage difference (ƸV) between cursors, time
difference (ƸT) between cursors.
Cursor display is allowed during auto measurement.
Total 27 measurements : peak-to-peak, amplitude, maximum, minimum, top,
Automatic
measurement
Customized parameter
measurement
Math functions
Saving waveforms
FFT
Lissajous Figure
bottom, mean, average, root mean square, overshoot, preshoot, frequency,
cycle, rising time, falling time, positive pulse, negative pulse, positive duty ratio,
negative duty ratio, rise delay, fall delay.
3 types
ˇˉ×, ÷ ,
Internal : 10 groups of waveforms and 10 setups.
USB : 10 groups of interfaces, 10 groups of waveforms.
Hanning, Hamming, Blackman-Harris, Rectangular
Window
1024 points
Sampling points
± 3 degrees
Phase difference
UTD1000 User Manual
Display
Display type
Display resolution
145mm diagonal line (5.7”) LCD panel
320 horizontal x RGB x 240 vertical pixels (color)
Display Colour
Color (UTD1###C)
Waveform display zone
Lateral 12 div, 25 dot/div
Longitudinal 8 div, 25 dot/div
Adjustable.
300 nit.
Display contrast
Backlight Intensity
Display Languages
Simplified Chinese, Traditional Chinese, English.
Interface Functions
Standard setup
Optional
1 x USB Host
UTD1000 User Manual
Digital Multimeter (It only suits for battery power supply)
Range : 600Ω, 6kΩ, 60kΩ, 600kΩ, 6MΩ, 60MΩ
600Ω/6MΩ/60MΩ: ±(1.5%+5 digits),
Resistance measurement
6KΩ/60KΩ/600KΩ: ±(1.2%+5 digits)
Range : 600mV, 6V, 60V, 600V, 1000V
DC voltage measurement
Precision : ± (1% + 5 digits)
AC voltage measurement
(45Hz̚400Hz)
DC current measurement
(external module)
AC current measurement
(45Hz̚400Hz)
(external module)
Capacitance measurement
Range : 600mV, 6V, 60V, 600V, 700V
600mV/6V/60V/600V/700V :±(1.2%+5 digits),Frequency:≤200Hz
:±(1.5%+5 digits),Frequency:≥200Hz
Range : 6mA, 60mA, 600mA, 6A
6mA/60mA/600mA:±(1.2%+5 digits)
6A :±(1.5%+5 digits)
Range : 6mA, 60mA, 600mA, 6A
6mA/60mA/600mA:±(2%+5 digits)
6A:±(2.5%+5 digits)
Range : 6nF, 60nF, 600nF, 6μF, 60μF, 600μF, 6mF
6nF/6mF:±(5%+10 digits)
60nF/600nF/6μF/60μF/600μF:±(4%+5 digits)
UTD1000 User Manual
Digital Multimeter (It only suits for battery power supply)
ON/OFF measurement
Diode measurement
Measurement modes
Maximum display number
Power Source
Source Voltage
Power Consumption
Battery supply
Yes
Yes
Auto/manual (Only manual mode is available for current measurement)
5999
100 - 240VACRMS, 45-440Hz, CAT II
Less than 20VA.
UTD1025C : 4h
UTD1102C/UTD1082C/UTD1062C/UTD1042C : 3h
UTD1202C/UTD1152C : 2h
UTD1000 User Manual
Environmental
Temperature
Operating : 0°C~+40°C
Non-operating : -20 °C~+60°C
Cooling Method
Forced fan cooling
Humidity
<+35°C : ≤ 90% RH;
+35°C~+40°C : ≤ 60% RH;
Altitude
Operating : 3,000m.
Non-operating : 15,000m.
Mechanical Specifications
Dimension
268 x 168 x 60 mm
Net
1.8kg
Weight
Gross
4.5kg
IP Protection : IP2X
Adjustment frequency : Recommended calibration frequency is 1 year
UTD1000 User Manual
Appendix B : Accessories for UTD1000
Oscilloscopes
Standard Accessories :
● Two 1.2m, 1:1 (10:1) passive voltage probes. For
details please read the probe manual. EN61010-031 :
2008 standard.
Rating is 150V CAT II when the switch is in the 1X
position;
Rating is 300V CAT II when the switch is in the 10X
position.
● One international standard power cord.
● One User Manual.
● Two current-to-voltage converter module : UT-M03/
UT-M04
● DC adaptor
● Test lead
All accessories (standard and optional) are available by
order at your local UNI-T dealers.
Appendix C : Maintenance and Cleaning
General Care
Do not store or leave the Oscilloscope where the LCD
display will be exposed to direct sunlight for long periods
of time. Caution : To avoid damage to the Oscilloscope
or probes, do not expose them to sprays, liquids, or
solvents.
Cleaning
Inspect the Oscilloscope and probes as often as
operating conditions require. To clean the exterior
surface, perform the following steps :
1. Remove loose dust on the outside of the Oscilloscope
and probes with a soft cloth. When cleaning the LCD,
use care to avoid scratching the clear protection film of
the LCD.
2. Use a dampened but not dripping soft cloth to clean
the Oscilloscope. Remember to disconnect power. Use
a mild cleaner or water. To avoid damaging the product
or probe, do not use abrasive chemical cleaner.
UTD1000 User Manual
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