UNI-T UTD1062C User guide

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 Do not operate in humid condition.
the grounding tips insulted cover as our USB / HOST Do not operate in combustible and explosive
terminal connect to the grounding tips. Do not allow any conditions.
other external device to connect USB / HOST terminal. If Keep the product surface clean and dry.
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.

Preface

This manual provides information on the operation of the
UTD1000 digital storage oscilloscope series.Guidance
is given in s evera l chapters as follows :
Chapter 1 U ser Gui de : Simple guide to oscill oscop e
functions and in stallation.
Chapter 2 Instru ment Se tups : Guide to operation
of the UTD1000 digital st orage o scilloscope series.
Chapter 3 Practi cal Example Illustrations : Examp le
illustr ation s are provided to solve var ious te sting
problem s.

Chapter 4 S ystem P rompts and Trouble- shooting :
Chapter 5 S ervicing and Sopp urt
Chapter 6 A ppend ixes
Appendix A : Technical Indicators
Appendix B : Acc essor ies for UTD Oscilloscope
Appendix C : Maint enanc e and Cleaning

1000

Table of Contents

1
4
4
7
8
10
11
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UTD1000 User Manual

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

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 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
Chapter 4 System Prompts and Trouble-shooting

1. Denitions of System Prompts

2. Troubleshooting
Chapter 5 Service and Support

1. Product Program Upgrade

Chapter 6 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
69
71
71
81
81
92
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UTD1000 User Manual

Model Bandwidth Sampling Rate Display

UTD1025C 25MHz

250MS/s Color
UTD1042C 40MHz 250MS/s Color
UTD1062C 60MHz 250MS/s Color
UTD1082C 80MHz 500MS/s Color
UTD1102C 100MHz 500MS/s Color
UTD1152C 150MHz 1GS/s Color
UTD1202C 200MHz 1GS/s Color

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 efciently.

This manual is a user guide for 7 models of this digital storage Oscilloscope series :

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UTD1000 User Manual

２

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 deection width range : 5mV/div – 50V/div

● Automatic waveform and status conguration

● 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

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UTD1000 User Manual

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Chapter 1

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

User Guide

--

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 c hapter briefly descr ibes t he o peration 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

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UTD1000 User Manual

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.

ARMED

READY

TRIG’ED

STOP

AUTO

SCAN

６

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 gure :

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 fr equency AC quant it ies below 80kHz of th e
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 :

The Oscilloscope is acquiring pre-trigger
data. All triggers are ignored.

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 ofce.

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 ofce.

3. Thorough inspection of the entire unit

If the exterior of the unit is damaged, or it is no t

operating normally, or it fails to pass the performance

test, please contact your UNI-T dealer or our local

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UTD1000 User Manual

８

ofce.

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

.

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.

2. Accessing signals

Your UTD1000 Oscilloscope has dual input channels.
Please access signals in the following steps :

Connect the probe of the digital storage Oscilloscope

①

to the red input terminal (Channel A), and set the

attenuation switch of the probe to 10X.

Figure 1-3 Setting the probe attenuation switch

UTD1000 User Manual

Figure 1-5 Square wave signal 10:1

You have to set the probe attenuation factor of the

②

Oscilloscope. This factor changes the vertical range
multiple to ensure the measurement result correctly

reects 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.

Figure 1-4 Adjusting the probe ratio

Connect the probe tip and ground clamp to the

③

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.

9

4. Probe Compensation

When connecting the probe to any input channel for the

rst 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].

3.Observe the shape of the displayed waveform.

１０

UTD1000 User Manual

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 gure is dis-

played.

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.

UTD1000 User Manual

5. Automatic Setups

Automatic Setup for Waveform Display

Your UTD1000 Oscilloscope features an auto setup
funct ion. It ca n autom atica lly adjus t the verti cal

deection 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%.

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.

6. Getting to Know the Operation Panel

Please see Figure 1-7 below for operation front panel
instructions :

Figure 1-7 Operation front panel

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UTD1000 User Manual

１２

The Vertical 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.

By press the key to ad just the position of th e
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.

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.

The Trigger System :

Press [TRIGGER] to adjust the trigger setup of the
waveform. For the trigger menu, see Figure 1-8.

Figure 1-8 Trigger System Setup

The above operation steps are detailed in the next

chapter.

UTD1000 User Manual

Chapter 2 --Instrument Setups

This ch apter gives gui da nce on al l Os cilloscop e
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.

Hiding the menu ([CLEAR]/[MENU])

■

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.

This chapter will guide you through the following :

Resetting the instrument

■

The jog dial

■

Setting up the vertical system ([A], [B], [ ], [ ])

■

Setting up the horizontal system ([ ], [ ])

■

Setting up the trigger system ([TRIGGER])

■

Displa y, a c q u i s i ti o n mode and a u t o m a t i c

■

measurement (SCOPE)

Storage setup and screen backup (SAVE)

■

Cursor measurement ([CURSOR])

■

Utility setup ([USER])

■

Mathematics function ([MATH])

■

Zoom function ([ZOOM])

■

1. Resetting the Instrument

To use factory setup, follow the steps below :

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.

13

Figure 2-1 Resetting the instrument

１４

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

1. Making menu selection with the jog dial

a. Press [SCOPE]. The menu i n th e figure belo w
appears at the bottom of the screen.

Figure 2-2 Making menu selection with the jog dial

UTD1000 User Manual

b. Press [F3] to select display. Enter the display menu shown in the gure below.

Figure 2-3 Operating the “Type” Menu with the jog dial

Figure 2-4 Operating the “Continuous”
Menu with the jog dial

15

F i g u r e 2-5 O p e r a t i n g the

１６

“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 conrm. The screen

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.

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

Channel A on
Channel A off

On
Off

Input A

Coupling

DC

AC

Ground

AC and DC quantities of input signal is allowed to pass. This mode is for

observing DC or exchange signals with DC quantities.

DC quantities of the input signal are intercepted. This mode is for observing

exchange signals with DC quantities intercepted.

DC level of the channel input terminal upon equivalent grounding is displayed.

Bandwid th
limit

Full bandwidth
20MHz

The Oscilloscope’s frequency bandwidth is full bandwidth.
Limit bandwidth to 20MHz to reduce display noise.

Adjust the channel bias voltage with the jog dial. When the DC quantities of the
signal being tested are much larger than the amplitude of the AC signal, you can
offset the DC quantities with bias voltage. In this condition, you can observe the

amplied AC signal.

Reset the bias voltage to zero.
Go back to the Channel A menu

Bias
Voltage

Bias voltage

(xxmV)

Reset to zeroReturn

Table 2-1 Explanatory notes for channel A menu

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 :

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UTD1000 User Manual

DC coupling setup

Others

Probe

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 :

１８

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 :

AC coupling setup

Figure 2-7 Only AC quantities of the signal are displayed

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)

Ground coupling setup

Figure 2-8 Screen display for the ground mode

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UTD1000 User Manual

２０

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

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.

Figure 2-10 20MHz bandwidth limit

20MHz bandwidth limit

UTD1000 User Manual

Figure 2-11 Setting the probe ratio

Next press the jog dial once to conrm, then press the

jog dial again to close the menu.
After confirming, amplitude reading of Channel A is

displayed as follows :

3. Setting bias voltage

Bias voltage is suitable for observing the following
signals :

The input signal is made up of relatively high DC

①

quantities and relatively low AC quantities.

The input AC signal is very low in frequency and

②

contains DC quantities. AC mode is unsuitable.

Duty ratio of the signal is too small. Waveform details

③

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

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UTD1000 User Manual

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.

２２

Changes in vertical range

Figure 2-12 Changes in vertical range

UTD1000 User Manual

Figure 2-14 Channel polarity setup (normal)

Figure 2-15 Channel polarity setup (inverted)

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UTD1000 User Manual

２４

4. Horizontal System Setup

Changing the signal time base and horizontal shift

Accelerate or decelerate the Oscilloscope’s scanning

rate by press ing , fro m 5ns/div ~50s/ div

(UTD1102C).
Note : Minimum horizontal time base range of the

UTD1000 Series varies from model to model.

5. Trigger System Setup

Triggering decides when the Oscilloscope collects data
and display waveforms. Once the trigger is correctly set
up, it can transform unstable displays into meaningful
wa ve fo rms. When beginn in g to acq ui re data, the

digital storage Oscilloscope rst collects sufcient 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 sufcient 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.

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UTD1000 User Manual

Function Menu Setup Explanatory Note

Trigger

Edge Set edge as the trigger type.

Trigger source

A
B
Alternate

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

Trigger setup

Trigger
mode

Auto

Normal

Single

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.

Trigger
coupling

DC
AC

L/F Suppression
H/F Suppression

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.

Slope

Rise
Fall

Set to trigger at the signal’s rising edge.
Set to trigger at the signal’s falling edge.

Holdoff

40ns – 1.5s

Adjust holdoff time.

Table 2-2

Pulse trigger : When the pulse width of the trigger signal reaches a preset trigger condition, trigger occurs.
Video trigger : Carry out eld 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.

Adjusting Holdoff Time

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.

２６

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 gure

below.

UTD1000 User Manual

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.

UTD1000 User Manual

Pulse width
setup

Puls e w i dth
condition

Pulse width
polarity

Positive

Negative

=
<
>

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.

Table 2-3

Trigger

Trigger source

Trigger setup

Trigger
setup

Pulse width

Trigger mode

Trigger
coupling

40ns – 6.40s

Pulse

A
B
Alternate

Auto

Normal

Single

DC
AC

L/F Reject
H/F Reject

Explanatory NoteSetupFunction Menu

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 satised.

Set to acquire one waveform when one trigger is detected, then stop.

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.

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UTD1000 User Manual

Trigger source

A
B
Alternate

Set A as the signal source trigger signal.
Set B as the signal source trigger signal.
A and B trigger their individual signals respectively.

Standard trigger

PAL

NTSC

Suitable for PAL video signals.

Suitable for NTSC video signals.

Synchronization

All lines

Specied lines
Odd eld
Even eld

Set the TV line to synchronize with trigger.

Set synchronized trigger on the specied line and adjust with the jog dial.
Set the video odd eld to synchronized trigger.
Set the video even eld to synchronized trigger.

Table 2-4

２８

Video Trigger

By selecting video trigger, you can carry out eld or line trigger with NTSC or PAL standard video signals.

Trigger menus are as follows :

Function Menu Setup Explanatory Note

Trigger Video

Set video trigger as the trigger type.

UTD1000 User Manual

When PAL is selected for standard format and synchronization mode is “specied line”, you will see a screen display
as shown in Figure 2-17. When synchronization mode is “odd eld”, you will see a screen display as shown in Figure

2-18.

Figure 2-17 Video trigger : line synchronization Figure 2-18 Video trigger : eld synchronization

29

UTD1000 User Manual

３０

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 gure

below.

Figure 2-19 Alternate trigger

Alternate trigger can also be used to compare pulse
widths.

Denitions

1.Trigger source : Trigger can be obtained from various

sources : Input channel (A or B) and alternate.

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 : D ete rmi ne the action of y our
Oscilloscope at trigger by selecting the mode. This
Oscilloscope offers three trigger modes for selection :
auto, normal and single.

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.

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.

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.

DC : Allowing all quantities to pass.

■

AC : Intercepting DC quantities and attenuating

■

signals under 10Hz.

Low Frequency Suppression : Intercepting DC

■

quantities and attenuating low frequency quantities
under 80kHz.

High 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.

31

6. Display, Acquisition Modes and Automatic Measurement

３２

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

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 Setup 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.

Acquisition mode

Average number of times

(when average sampling
is selected)

Sampling
Peak detect
Average

2~256

Equivalent time

On
Off

Set sampling to real time.
Set sampling to equivalent at a time base range of 5ns~100ns/div.

33

UTD1000 User Manual

３４

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

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.

average sampling is selected

UTD1000 User Manual

Denitions :
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
signicant in this mode.

Average mode : The digital storage Oscilloscope acquires several waveforms and takes the average value to display

the nal waveform. You can use this mode to reduce random noise.

35

Setting the Display Mode

３６

Press [SCOPE] then [F3] to access the display menu shown in Table 2-7 below.

Table 2-7 Display menu

UTD1000 User Manual

Function Menu

Type

Duration

Format

Setup

Vector
Dot
OFF
2s
5s

Innity

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

Denitions :
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
ampli tude with VOLT S/DIV o f the two c hanne ls.
Adjusting the s/DIV time base will result in a lissajous

gure of better display quality.

The following functions are disabled in the X-Y display
mode :

Automatic measurement mode

■

Cursor measurement mode

■

Reference or maths waveform

■

Vector display type

■

Trigger control

■

Denitions :
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.

37

UTD1000 User Manual

３８

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.

Table 2-8 Parameter measurement menu

Function Menu

Parameter
measurement

Customized
parameters

Number of parameters

Channel

Indicator

Setup

Customized parameter
All parameters
OFF
Parameter 1
Parameter 2
Parameter 3
Total 27
A
B
OFF
Parameter 1
Parameter 2
Parameter 3

Explanatory Note

The screen displays only user-dened parameters.

All 27 parameters are displayed.
Close the automatic measurement function.
Up to 3 parameters can be displayed simultaneously on screen.

Select with the jog dial.
Display measurement value of Channel A.
Display measurement value of Channel B.
Close the automatic measurement display.
This function offers visual indication of the parameter being tested.

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 s elect cus tomized par amete r fo r
parameter measurement.

5.Press [F2] to select parameter 1 as the customized
parameter.

6.Press [F3] then turn the jog dial to select peak-to-

peak value, then press the jog dial once to conrm. The
screen will exit from the current menu.

7.Press [F4] to select Channel A.

8.Press [F5] to set indicator to parameter 1.

The peak-to-peak value is displayed in the top right
corner, as shown below :

Figure 2-22 Selected parameter measurement

Not e : C ust omiz ed pa ram ete rs are for q uick
par ame ter me asureme nt. T his device h as 27
measureme nt par ameters. In ge neral use, th e
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.

39

UTD1000 User Manual

４０

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.

Figure 2-23 All measurement parameters

Frequency counter setup

Press [SCOPE] then [F4] to activate the frequency
counter, as shown below.

Figure 2-24 Hardware frequency counter

41

UTD1000 User Manual

４２

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

Record

Close

er

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.

43

UTD1000 User Manual

４４

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 :

Figure 2-26 Waveform save menu

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).

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.

45

UTD1000 User Manual

４６

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.

Table 2-12 Recorder menu

Function Menu

Recorder

Replay

Load

Save

Go Back

Setup

ON

OFF

See Table2-13

USB document

(1-10)

USB document

(1-10)

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 ac tivat e the wavef orm recor ding
function. The system enters the recording mode. The
number of screens being recorded is shown in the top
right corner.

3.When all specied 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.

Not e : Your UT D100 0 S erie s D igit al Stor age
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 :

Changing vertical range of the signal

■

Changing horizontal time base of the signal

■

Changing horizontal position of the signal

■

Changing vertical position of the signal

■

Autoset the signal

■

47

UTD1000 User Manual

４８

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

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 :

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.

UTD1000 User Manual

Figure 2-27 Recorded waveform replay

8. Cursor Measurement

Press [CURSOR] to display the cursor measurement
menu, then press [F1] to activate the cursor. The
[C UR SOR] menu offers two cu rs or measureme nt
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 for△V measurement.
Likewise, by selecting time, you can measure △t.
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.

49

9. Utility Function Setup

OFF

5 min

10 min

15 min

20 min

Language

Table 2-14 Utility menu

５０

Press [USER] to pop up the utility system setup menu, as shown in Table 2-14

Function Menu

Option

Battery

-saving

Display

Setup

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 specied period of time. If DC power adaptor is connected,

this energy-save mode is disabled.

Set the interface design of the testing device.

There are three designs to choose from.

UTD1000 User Manual

简体中文
繁體中文

English

Select the interface language.

UTD1000 User Manual

Table 2-14 Utility menu(continued)

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 conrm 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.

Function Menu Explanatory NoteSetup

Help

Auto calibration

Version

Bright

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.

51

UTD1000 User Manual

５２

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 mHz-

244.1MHz

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.

53

UTD1000 User Manual

５４

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 h armonic 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 nish. 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 nish, 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

Denition :
FFT recognition rate : It means the quotient of the sampling and math points. When maths point value is xed, 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.

Table 2-17 FFT function window

FFT Window

Hanning

Hamming

Blackman

Rectangle

Feature

Frequency recognition rate is better than

the rectangle window, but amplitude

recognition rate is poorer.

Frequency recognition rate is marginally

better than Hanning window.

The best amplitude recognition rate and

the poorest frequency recognition rate.

The best frequency recognition rate,

the worst amplitude recognition rate.

Basically similar to a status without

adding window.

Most Suitable Measurement Item

Sine, cyclical and narrow-band random noise.

Temporary or fast pulse. Signal level varies greatly

before and after.

Mainly for single-frequency signals to search for

higher-order harmonic wave.

Temporary or fast pulse. Signal level is generally

the same before and after. Equal sine wave of very

similar frequency. There is broad-band random

noise with slow moving wave spectrum.

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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 gure

Horizontal extension

Figure 2-28 Screen display with window extended

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.

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.

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 Setu p can simplify operation. Press [AUTO]
and the Oscilloscope can automatically adjust the
vertical d eflection 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 :

Table 2-18 Auto setup menu

Function

Acquisitionmode

Display format

SEC/DIV

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

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UTD1000 User Manual

Table 2-19 Multimeter measurement menu

５８

14. Multimeter Measurement

Operation instructions : Open the multimeter function menu by pressing [METER]. Setup is as follows.

Function Menu

Type

Range mode

Range

Trend plot

Coord bias

Setup

DC voltage
AC voltage
Resistance
Continuity
Diode
Capacitance
DC current
AC current

Auto

Manual

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 specied 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 :

In the probe menu, set the attenuation factor to 10X

①

and set the switch on the probe to 10X.

Connect the Channel A probe to the circuitry point to

②

be measured.

ress [AUTO].

③

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 an d tim e par ame ters for automa tic

measurement

Your Oscilloscope can automatically measure most
display signals. To measure signal frequency and peak-

to-peak value, follow the steps below :

Press [SCOPE] for the frequently used function

①

menu.

Press [F2] to enter the parameter measurement

②

menu, then press [F1] to set parameter measurement to

dened parameter.

Press [F2] to set dened parameter to “parameter 1”.

③

Press [F3] to select the “frequency” parameter with

④

the jog dial, then press [F4] to select channel A.

Press [F2] set dened parameter to “parameter 2”.

⑤

Press [F3] to select the “peak-to-peak” parameter

⑥

with the jog dial, then press [F4] to select channel A.

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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 :

Press [AUTO].

①

Continue to adjust the horizontal and vertical range

②

until you get the desired waveform display.

Press the Channel A vertical displacement key to

③

adjust Channel A’s vertical position.

Press the Channel B vertical displacement key

④

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

When measuring channel delay automatically, press

①

[SCOPE] to display the frequently used function
menu.

Press [F2] to enter the parameter measurement

②

menu. Press [F1] to set parameter measurement to

dened parameter.

Press [F2] to set dened parameter to “parameter 1”

③

Press [F3] to select “rising delay” parameter with

④

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.
Press [TRIGGER] to display the trigger setup menu.

①

In this menu, use [F1]~[F5] and the jog dial to set the

②

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.

61

Adjust horizontal time base and vertical range to an

６２

③

appropriate range.

Turn the jog dial to get the desired level.

④

Press [RUN/STOP] and wait for a signal that meets

⑤

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.

UTD1000 User Manual

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

lter 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.
Press [TRIGGER] to display the trigger setup menu.

①

Press [F3] to set trigger coupling in the trigger setup

②

menu to low frequency suppression or high frequency
suppression. By selecting low frequency suppression a

high-pass lter is set up. It lters 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

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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 observati on and measurement

requirements. (See the gure 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.

Illustration 5 : Using cursors for measurement

Yo ur O s c illosc o p e can m e asure 27 wave 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 △value will be displayed in the cursor menu,

i.e. the width of that pulse, as shown in the gure below.

UTD1000 User Manual

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.

Illustration 6 : Using the X-Y function

To check the phase difference between signals of the
two channels.

Ex ample : To measu re the phase variation when

a signal pa sses thro ugh 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.Adjus t 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

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UTD1000 User Manual

６６

display the circuit’s input and output characteristics in a

Lissajous gure.

8.Adjust the vertical amplitude range and vertical
position to achieve the best waveform.

9.Using the e lliptic O scilloscope display graph to
observe, measure and calculate the phase difference.

(See the gure below)

The signal must be horizontally center

Figure 3-7 Lissajous gure

If sin θ = A/B or C /D ,
θ is the an gle of disparity between the c hannels.

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.

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 eld triggering

To trigger in the video eld, 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.Pres s [F 4 ] to sel e c t odd f i eld o r ev e n field

synchronization.

6.Adjust the horizontal time base for a clear waveform

display.

67

Figure 3-8

Video odd eld triggering

６８

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 dened 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.

UTD1000 User Manual

Figure 3-9 Video line triggering

UTD1000 User Manual

Chapter 4 System Prompts and Trouble-shooting

1. Denitions 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...... : W hen th e Oscilloscope is sa ving 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 nd the cause :

Check if the power switch is properly pressed.

①

Plug in the DC power adaptor and check if the

②

battery is out.

Check the power cable connection.

③

Restart the unit after performing the above checks.

④

If the unit still fails to power on, contact UNI-T to

⑤

request service.

2.If no waveform is displayed after you have acquired a

signal, follow the steps below to nd the cause :

Check whether the probe is properly connected to

①

the signal lead.

Check whether the signal lead is properly connected

②

to the BNC (channel adaptor).

Check whether the probe is connected properly to

③

the object to be measured.

Check whether the object for measurement is

④

generating signals (connect the channel with signals to

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UTD1000 User Manual

７０

the questionable channel to nd the cause).

Restart the acquisition process.

⑤

3.The measurement voltage amplitude value is 10 times
larger or smaller than the actual value :

Check if the channel attenuation factor corresponds

①

with the probe attenuation you have chosen.

4.There is waveform display but it is not stable :
Check the trigger source setup in the trigger menu.

①

See whether it is the same as the actual signal input
channel.

Check the trigger type : Use edge trigger for ordinary

②

signals and video trigger for video signals. Stable
waveform display is achieved only when the correct
trigger mode is selected.

Try changing the coupling display to high frequency

③

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] :

Check if the trigger mode is set to normal or single in

①

the menu, and whether the level exceeds the waveform

range. If so, move the level to the centre or set trigger

mode to AUTO.

Press [AUTO] to complete the setup.

②

6.Display speed is slow after average sampling time is
enabled :

If average sampling is carried out for more than 32

①

times, the display speed will drop. This is normal.

You can reduce the intervals of average sampling.

②

7.Trapezoidal waveform display :
This is normal. The reason is possibly horizontal

①

time base range is too low. You can improve horizontal

pixel aspect ratio and enhance the display quality by

increasing the horizontal time base.

If the display type is vector, the connection between

②

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 h ave to own an Oscilloscope manufactured
by U ni-T. To che ck t he m odel, hardw are 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 devic e (disk for ma t FAT). Af te r

decompressing the program upgrade pack, save it in
the USB root directory. The program upgrade document

has the sufx “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”.

71

Figure 5-1 Figure 5-2

７２

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 conrm. To exit upgrade,

press [F1].

UTD1000 User Manual

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 Figure 5-4

5.On the screen shown in Figure 5-3, press [F5] to

conrm 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 …%”

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.

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UTD1000 User Manual

７４

6.When upgrade progress reac hes 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.”

Figure 5-5

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.

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 nd the upgrade

document in the USB root directory, the message in
Figure 5-8 will appear : “E13 : Can’t find valid update

le at U-disk root directory! Please sure there is update
le at U-disk’s root directory, Please pull out U-disk and

reboot.”

75

Figure 5-8 Figure 5-9

７６

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.”

UTD1000 User Manual

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.I f t he mo del of t he prog ram upg rade p a ck 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.”

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UTD1000 User Manual

７８

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.”

79

Figure 5-16

８０

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

UTD1000 User Manual

Sampling modes

Sampling rates

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.

Sampling Modes

Sampling

Average

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 specications, it must rst meet the following conditions :

The Oscilloscope must have been operating continuously for thirty minutes within the specified operating

■

temperature.

f the operating temperature changes by more than 5°C, you must perform the “Self Cal” operation, accessible

■

I

through the System Functions menu. All specications are guaranteed unless noted “Typical”.

Technical Indicators :

81

Input

Waveform interpolation

Recording length

Storage depth

Scanning range (s/div)

Accuracy of sampling

rate and delay time

Time interval (△T) measurement

accuracy (full bandwidth)

Linear

2 x 512K sampling point

7.5k

2ns/div-50s/div (200MHz, 150MHz);
5ns/div-50s/div (100MHz, 80MHz, 60MHz, 40MHz);
10ns/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).

Horizontal

８２

Input coupling
Input impedance
Probe attenuation factor

Maximum input voltage
Time delay between channels (Typical)

UTD1000 User Manual

DC, AC, GND
1MΩ±2% in parallel with 21pF±3pF.

1X, 10X, 100X, 1000X

400V (DC + AC Peak)

50ps

UTD1000 User Manual

UTD1202C UTD1152C UTD1102C UTD1082C UTD1062C UTD1042C UTD1025C

200MHz 150MHz 100MHz 80MHz 60MHz 40MHz 25MHz

100MHz 100MHz 50MHz 50MHz 25MHz 25MHz 25MHz

Vertical

Model

A/D converter (A/D)

Deection 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

8-bit resolution

5mV/div ~ 50 V/div at input BNC

± 10 div

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)..

83

Vertical

８４

DC measurement accuracy

(average sampling mode)

Voltage difference (△V)

measurement accuracy

(average sampling mode)

UTD1000 User Manual

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

(△V) between t wo poin ts of the waveform after the av erage of ≥16

waveforms acquired waveforms is taken : ± (3% x reading + 0.05 div).

UTD1000 User Manual

Rise, Fall

(Greater than, less than, or equal to) positive pulse; (Greater than,

less than, or equal to) negative pulse.

40ns – 6.4s

８５

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

Video Trigger

2 div peak-to-peak

Supports standard NTSC and PAL

Line range : 1-525 (NTSC) and 1-625 (PAL)

Edge, pulse, video

Edge, pulse, video

８６

Trigger sensitivity (video trigger, typical)

2 div peak-to-peak signal format and line/

eld frequency (video trigger type)

Alternate Trigger

UTD1000 User Manual

A Trigger

B Trigger

UTD1000 User Manual

Voltage difference (△V) between cursors, time

difference (△T) between cursors.

Hanning, Hamming, Blackman-Harris, Rectangular

1024 points

± 3 degrees

Measurement

Cursor

Automatic

measurement

Customized parameter

measurement

Math functions

Saving waveforms

FFT

Lissajous Figure

Manual mode

Cursor display is allowed during auto measurement.

Total 27 measurements : peak-to-peak, amplitude, maximum, minimum, top,

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

×, ÷ ,

＋,－,

Internal : 10 groups of waveforms and 10 setups.

USB : 10 groups of interfaces, 10 groups of waveforms.

Window

Sampling points

Phase difference

87

Display

Interface Functions

Standard setup

Optional

1 x USB Host

８８

Display type

Display resolution

UTD1000 User Manual

145mm diagonal line (5.7”) LCD panel

320 horizontal x RGB x 240 vertical pixels (color)

Display Colour

Waveform display zone

Display contrast

Backlight Intensity

Display Languages

Color (UTD1###C)

Lateral 12 div, 25 dot/div

Longitudinal 8 div, 25 dot/div

Adjustable.

300 nit.

Simplied Chinese, Traditional Chinese, English.

UTD1000 User Manual

Digital Multimeter (It only suits for battery power supply)

Range : 600Ω, 6kΩ, 60kΩ, 600kΩ, 6MΩ, 60MΩ

Resistance measurement

DC voltage measurement

AC voltage measurement

(45Hz～400Hz)

DC current measurement

(external module)

AC current measurement

(45Hz～100Hz)

(external module)

Capacitance measurement

600Ω/6MΩ/60MΩ: ±(1.5%+5 digits),

6KΩ/60KΩ/600KΩ: ±(1.2%+5 digits)

Range : 600mV, 6V, 60V, 600V, 1000V

Precision : ± (1% + 5 digits)

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)

89

Digital Multimeter (It only suits for battery power supply)

Source Voltage

Power Consumption

Battery supply

100 - 240VACRMS, 45-440Hz, CAT II

Less than 20VA.

UTD1025C : 4h

UTD1102C/UTD1082C/UTD1062C/UTD1042C : 3h

UTD1202C/UTD1152C : 2h

Power Source

9０

ON/OFF measurement

Diode measurement

Measurement modes

Maximum display number

Yes

Yes

Auto/manual (Only manual mode is available for current measurement)

5999

UTD1000 User Manual

UTD1000 User Manual

Environmental

Temperature

Cooling Method

Humidity

Altitude

Operating : 0°C~+40°C

Non-operating : -20 °C~+60°C

Forced fan cooling

<+35°C : ≤ 90% RH;

+35°C~+40°C : ≤ 60% RH;

Operating : 3,000m.

Non-operating : 15,000m.

Mechanical Specications

Dimension

Weight

268 x 168 x 60 mm

Net

Gross

1.8kg

4.5kg

IP Protection : IP2X

Adjustment frequency : Recommended calibration frequency is 1 year

91

UTD1000 User Manual

9２

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

In sp ect the Oscill os co pe and probes as of ten 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 lm 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

This user manual may be revised without prior notice.

93

UTD1000 User Manual

Copyright 200

9 Uni-Trend Group Limited.

All rights reserved.

Manufacturer:
Uni-Trend Technology (chengdu) Limited
2/Floor, Block D2,
199 Xiqu Da Dao,
Gaoxin Xiqu,
Cheng Du City,
Si Chuan Province,China
Postal Code: 610 091

Headquarters:
Uni-Trend Group Limited
Rm901, 9/F, Nanyang Plaza
57 Hung To Road
Kwun Tong
Kowloon, Hong Kong
Tel: [phone]
Fax: [phone]
Email: [email protected]
http://www.uni-trend.com

9４