Hantek DSO5202B 200MHz, 2 Channel Digital Storage Oscilloscope

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Hantek DSO5202B Oscilloscope Owner's Manual

This is the main product document for model DSO5202B.

The file format is pdf, 78 pages, you can download this manual here .

background
DS
DS
DS
DS O5000
O5000
O5000
O5000 Series
Series
Series
Series
Digital
Digital
Digital
Digital Storage
Storage
Storage
Storage Oscilloscope
Oscilloscope
Oscilloscope
Oscilloscope
User
User
User
User Manual
Manual
Manual
Manual
background
Contents
DS O5000 Series Digital Storage Oscilloscope User Manual
i
Contents
Contents
Contents
Contents
Contents
Contents
Contents
Contents .........................................................................................................................................................
.........................................................................................................................................................
.........................................................................................................................................................
......................................................................................................................................................... i
i
i
i
Copyright
Copyright
Copyright
Copyright Declaration
Declaration
Declaration
Declaration ..............................................................................................................................
..............................................................................................................................
..............................................................................................................................
.............................................................................................................................. iv
iv
iv
iv
Chapter
Chapter
Chapter
Chapter 1
1
1
1 Safety
Safety
Safety
Safety Tips
Tips
Tips
Tips ................................................................................................................................
................................................................................................................................
................................................................................................................................
................................................................................................................................ 1
1
1
1
1.1 General Safety Summary ............................................................................................................ 1
1.2 Safety Terms and Symbols .......................................................................................................... 2
1.3 Terms on Product .......................................................................................................................... 2
1.4 Symbols on Product ..................................................................................................................... 2
1.5 Product Scrapping ........................................................................................................................ 2
Chapter
Chapter
Chapter
Chapter 2
2
2
2 Overview
Overview
Overview
Overview ...................................................................................................................................
...................................................................................................................................
...................................................................................................................................
................................................................................................................................... 3
3
3
3
2.1 Brief Introduction to DS O5 000 Series ........................................................................................ 3
2.2 Help System .................................................................................................................................. 3
Chapter
Chapter
Chapter
Chapter 3
3
3
3 Getting
Getting
Getting
Getting Started
Started
Started
Started Guide
Guide
Guide
Guide ............................................................................................................
............................................................................................................
............................................................................................................
............................................................................................................ 5
5
5
5
3.1 Installation ...................................................................................................................................... 5
3.1.1 Power Supply ........................................................................................................................ 5
3.1.2 Power Cord ............................................................................................................................ 5
3.2 Functional Check .......................................................................................................................... 5
3.2.1 Power on the oscilloscope ................................................................................................... 5
3.2.2 Connect the oscilloscope ..................................................................................................... 5
3.2.3 Observe the waveform ......................................................................................................... 6
3.3 Probe Examination ....................................................................................................................... 6
3.3.1 Safety ...................................................................................................................................... 6
3.3.2 Use of Probe Check Wizard ................................................................................................ 7
3.4 Manual Probe Compensation ..................................................................................................... 7
3.5 Probe Attenuation Setting ............................................................................................................ 8
3.6 Self Calibration .............................................................................................................................. 8
Chapter
Chapter
Chapter
Chapter 4
4
4
4 Main
Main
Main
Main Feature
Feature
Feature
Feature Description
Description
Description
Description .....................................................................................................
.....................................................................................................
.....................................................................................................
..................................................................................................... 9
9
9
9
4.1 Oscilloscope Setup ....................................................................................................................... 9
4.2 Trigger ............................................................................................................................................. 9
4.3 Data Acquisition ...........................................................................................................................
11
4.4 Waveform Scaling and Positioning ...........................................................................................
11
4.5 Waveform Measurement ........................................................................................................... 12
Chapter
Chapter
Chapter
Chapter 5
5
5
5 Basic
Basic
Basic
Basic Operation
Operation
Operation
Operation ....................................................................................................................
....................................................................................................................
....................................................................................................................
.................................................................................................................... 14
14
14
14
5.1 Display Area ................................................................................................................................ 15
5.1.1 XY Format ............................................................................................................................ 16
5.2 Horizontal Controls ..................................................................................................................... 17
5.2.1 Scan Mode Display (Roll Mode) ....................................................................................... 19
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Contents
DS O5000 Series Digital Storage Oscilloscope User Manual
ii
5.3 Vertical Controls .......................................................................................................................... 19
5.3.1 Math FFT .............................................................................................................................. 21
5.3.1.1 Setting Time-domain Waveform ................................................................................... 21
5.3.1.2 Displaying FFT Spectrum .............................................................................................. 23
5.3.1.3 Selecting FFT Window ................................................................................................... 23
5.3.1.4 FFT Aliasing ..................................................................................................................... 25
5.3.1.5 Eliminating Aliases .......................................................................................................... 25
5.3.1.6 Magnifying and Positioning FFT Spectrum ................................................................. 25
5.3.1.7 Using Cursors to Measure FFT Spectrum .................................................................. 26
5.4 Trigger Controls .......................................................................................................................... 26
5.5 Menu and Option Buttons .......................................................................................................... 32
5.5.1 SAVE/RECALL .................................................................................................................... 33
5.5.2 MEASURE ........................................................................................................................... 34
5.5.3 ACQUIRE ............................................................................................................................. 35
5.5.4 UTILITY ................................................................................................................................ 37
5.5.5 CURSOR .............................................................................................................................. 38
5.5.6 DISPLAY .............................................................................................................................. 38
5.6 Fast Action Buttons ..................................................................................................................... 39
5.6.1 AUTOSET ............................................................................................................................ 39
5.6.2 Help ....................................................................................................................................... 41
5.6.3 Default Setup ....................................................................................................................... 41
5.7 Multi-functional Knobs and Buttons ......................................................................................... 43
5.8 Signal Connectors ...................................................................................................................... 43
Chapter
Chapter
Chapter
Chapter 6
6
6
6 Application
Application
Application
Application Examples
Examples
Examples
Examples .........................................................................................................
.........................................................................................................
.........................................................................................................
......................................................................................................... 45
45
45
45
6.1 Example 1: Taking Simple Measurements .............................................................................. 45
6.2 Example 2: Taking Cursor Measurements .............................................................................. 47
6.3 Example 3: Analyzing Input Signals to Eliminate Random Noise ....................................... 50
6.4 Example 4: Capturing Single-shot Signal ............................................................................... 51
6.5 Example 5: Using X-Y Mode ..................................................................................................... 52
6.6 Example 6: Triggering on Pulse Width .................................................................................... 53
6.7 Example 7: Triggering on Video Signal ................................................................................... 54
6.8 Example 8: Using Slope Trigger to Capture Particular Slope Signal .................................. 56
6.9 Example 9: Using Overtime Trigger to Measure Long Pulse Signal ................................... 57
6.10 Example 10: Using Math Functions to Analyze Waveforms ................................................. 58
6.11 Example 11: Measuring Data Propagation Delay .................................................................. 59
Chapter
Chapter
Chapter
Chapter 7
7
7
7 Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting ....................................................................................................................
....................................................................................................................
....................................................................................................................
.................................................................................................................... 61
61
61
61
7.1 Problem Settlement .................................................................................................................... 61
Chapter
Chapter
Chapter
Chapter 8
8
8
8 Specifications
Specifications
Specifications
Specifications ........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................ 62
62
62
62
8.1 Technical Specifications ............................................................................................................. 62
8.2 Accessories ................................................................................................................................. 67
Chapter
Chapter
Chapter
Chapter 9
9
9
9 Services
Services
Services
Services and
and
and
and Support
Support
Support
Support ..........................................................................................................
..........................................................................................................
..........................................................................................................
.......................................................................................................... 69
69
69
69
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Contents
DS O5000 Series Digital Storage Oscilloscope User Manual
iii
Chapter
Chapter
Chapter
Chapter 10
10
10
10 General
General
General
General Care
Care
Care
Care and
and
and
and Cleaning
Cleaning
Cleaning
Cleaning ..............................................................................................
..............................................................................................
..............................................................................................
.............................................................................................. 70
70
70
70
10.1 General Care ............................................................................................................................... 70
10.2 Cleaning ....................................................................................................................................... 70
Appendix
Appendix
Appendix
Appendix
A
A
A
A
Harmful
Harmful
Harmful
Harmful and
and
and
and Poisonous
Poisonous
Poisonous
Poisonous Substances
Substances
Substances
Substances or
or
or
or Elements
Elements
Elements
Elements ....................................................
....................................................
....................................................
.................................................... 71
71
71
71
Appendix
Appendix
Appendix
Appendix B
B
B
B Index
Index
Index
Index .....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
..................................................................................................................................... 72
72
72
72
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Copyright Declaration
DS O5000 Series Digital Storage Oscilloscope User Manual
iv
Copyright
Copyright
Copyright
Copyright Declaration
Declaration
Declaration
Declaration
All rights reserved; no part of this document may be reproduced or transmitted in any form or by
any means, electronic or mechanical, without prior written permission from Hantek Technologies
Co., Ltd (hereinafter referred to as Hantek ).
Hantek reserves all rights to modify this document without prior notice. Please contact Hantek for
the latest version of this document before placing an order.
Hantek has made every effort to ensure the accuracy of this document but does not guarantee the
absence of errors. Moreover, Hantek assumes no responsibility in obtaining permission and
authorization of any third party patent, copyright or product involved in relation to the use of this
document.
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Safety Tips
DS O5000 Series Digital Storage Oscilloscope User Manual
1
Chapter
Chapter
Chapter
Chapter 1
1
1
1 Safety
Safety
Safety
Safety Tips
Tips
Tips
Tips
1.1
1.1
1.1
1.1 General
General
General
General Safety
Safety
Safety
Safety Summary
Summary
Summary
Summary
Re ad the following safety precautions to avoid injury and prevent damage to this product or any
products connected to it.
To
evade potential hazards, use this product only as specified.
Only
Only
Only
Only qualified
qualified
qualified
qualified personnel
personnel
personnel
personnel should
should
should
should perform
perform
perform
perform maintenance
maintenance
maintenance
maintenance .
.
.
.
A
A
A
A void
void
void
void f
f
f
f ire
ire
ire
ire or
or
or
or p
p
p
p ersonal
ersonal
ersonal
ersonal i
i
i
i njury
njury
njury
njury .
.
.
.
Use
Use
Use
Use suitable
suitable
suitable
suitable p
p
p
p ower
ower
ower
ower c
c
c
c ord.
ord.
ord.
ord. Use only the power cord specified for this product and certified for the
country of use.
Connect
Connect
Connect
Connect and
and
and
and d
d
d
d isconnect
isconnect
isconnect
isconnect p
p
p
p roperly.
roperly.
roperly.
roperly. Connect a probe with the oscilloscope before it is connected
to measured circuits; disconnect the probe from the oscilloscope after it is disconnected from
measured circuits.
Ground
Ground
Ground
Ground the
the
the
the p
p
p
p roduct.
roduct.
roduct.
roduct. This product is grounded through the grounding conductor of the power
cord.
To
avoid electric shock, the grounding conductor must be connected to earth ground. Before
making connections to the input or output terminals of the product, ensure that the product is
properly grounded.
Connect
Connect
Connect
Connect the
the
the
the p
p
p
p robe
robe
robe
robe in
in
in
in a
a
a
a right
right
right
right way
way
way
way .
.
.
. The probe ground lead is at ground potential. Do not connect
the ground lead to an elevated voltage.
Check
Check
Check
Check a
a
a
a ll
ll
ll
ll t
t
t
t erminal
erminal
erminal
erminal r
r
r
r atings.
atings.
atings.
atings.
To
avoid fire or shock hazard, check all ratings and marking s on the
product. Refer to the product manual for detailed information about ratings before making
connections to the product.
Do
Do
Do
Do n
n
n
n ot
ot
ot
ot o
o
o
o perate
perate
perate
perate w
w
w
w ithout
ithout
ithout
ithout c
c
c
c overs.
overs.
overs.
overs. Do not operate this product with covers or panels removed.
Avoid
Avoid
Avoid
Avoid e
e
e
e xposed
xposed
xposed
xposed c
c
c
c ircuitry.
ircuitry.
ircuitry.
ircuitry. Do not touch exposed connections and components when power is
present.
Do
Do
Do
Do n
n
n
n ot
ot
ot
ot o
o
o
o perate
perate
perate
perate w
w
w
w ith
ith
ith
ith s
s
s
s uspected
uspected
uspected
uspected f
f
f
f ailures.
ailures.
ailures.
ailures. If you suspect there is damage to this product, have it
inspected by qualified service personnel .
Assure
Assure
Assure
Assure good
good
good
good v
v
v
v entilation.
entilation.
entilation.
entilation.
Do
Do
Do
Do n
n
n
n ot
ot
ot
ot o
o
o
o perate
perate
perate
perate in
in
in
in w
w
w
w et/
et/
et/
et/ d
d
d
d amp
amp
amp
amp environment
environment
environment
environment s.
s.
s.
s.
Do
Do
Do
Do n
n
n
n ot
ot
ot
ot o
o
o
o perate
perate
perate
perate in
in
in
in an
an
an
an e
e
e
e xplosive
xplosive
xplosive
xplosive at
at
at
at mosphere.
mosphere.
mosphere.
mosphere.
Keep
Keep
Keep
Keep p
p
p
p roduct
roduct
roduct
roduct s
s
s
s urfaces
urfaces
urfaces
urfaces c
c
c
c lean
lean
lean
lean and
and
and
and d
d
d
d
ry.
ry.
ry.
ry.
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Safety Tips
DS O5000 Series Digital Storage Oscilloscope User Manual
2
1.2
1.2
1.2
1.2 Safety
Safety
Safety
Safety Terms
Terms
Terms
Terms and
and
and
and Symbols
Symbols
Symbols
Symbols
The following terms may appear in this manual:
WARNING.
WARNING.
WARNING.
WARNING. Warning statements point out conditions or practices that could result in injury
or loss of life.
CAUTION.
CAUTION.
CAUTION.
CAUTION. Caution statements identify conditions or practices that could result in damage
to this product or other property.
1.3
1.3
1.3
1.3 Terms
Terms
Terms
Terms on
on
on
on Product
Product
Product
Product
The following terms may appear on the product:
DANGER
DANGER
DANGER
DANGER indicates an injury hazard immediately accessible as you read the marking.
WARNING
WARNING
WARNING
WARNING indicates an injury hazard not immediately accessible as you read the marking.
CAUTION
CAUTION
CAUTION
CAUTION indicates a possible hazard to this product or other property.
1.4
1.4
1.4
1.4 Symbols
Symbols
Symbols
Symbols on
on
on
on Product
Product
Product
Product
The following symbols may appear on the product:
Protective
Ground
(Earth)
Terminal
Measur e ment
Ground
Terminal
CAUTION
Refer to Manual
Measur e ment
Input Terminal
Mains
Disconnected
OFF (Power)
Mains
Connected
ON (Power )
High Voltage
1.5
1.5
1.5
1.5 Product
Product
Product
Product Scrapping
Scrapping
Scrapping
Scrapping
Device
Device
Device
Device Recycling
Recycling
Recycling
Recycling
We need extract and utilize natural resources to produce this device. If you do not reclaim the
device in a proper way, some substances it contains may become harmful or poisonous to
environments or human bodies.
To
avoid them being released outside and to minimize the waste
of natural resources, we suggest you reasonably call back this device to ensure proper recovery
and recycling of most materials within it.
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Overview
DS O5000 Series Digital Storage Oscilloscope User Manual
3
Chapter
Chapter
Chapter
Chapter 2
2
2
2 Overview
Overview
Overview
Overview
2.1
2.1
2.1
2.1 Brief
Brief
Brief
Brief Introduction
Introduction
Introduction
Introduction to
to
to
to DS
DS
DS
DS O
O
O
O 5
5
5
5 000
000
000
000 Series
Series
Series
Series
Model
Model
Model
Model Channels
Channels
Channels
Channels Bandwidth
Bandwidth
Bandwidth
Bandwidth Sample
Sample
Sample
Sample Rate
Rate
Rate
Rate LCD
LCD
LCD
LCD
DS
DS
DS
DS O5
O5
O5
O5 062
062
062
062 N
N
N
N 2 60MHz 500MS/s 7 inch color
DS
DS
DS
DS O5
O5
O5
O5 102
102
102
102 N
N
N
N 2 100MHz 500MS/s 7 inch color
DS
DS
DS
DS O5
O5
O5
O5 102
102
102
102 M
M
M
M 2 100MHz 1GS/s 7 inch color
DS
DS
DS
DS O5
O5
O5
O5 202
202
202
202 M
M
M
M 2 200MHz 1GS/s 7 inch color
Table 2 1 Model List of DS O5000 Series
DSO5000 Series oscilloscopes cover the bandwidths from 25MHz to 200MHz, and provide
the real-time and equivalent sampl e rates respectively up to 1GS a /s and 25GSa/s. In addition,
they have maximum 1M memory depth for better observation of the waveform details , and 7 inch
color TFT LCD as well as WINDOWS- s tyle interfaces and menus for easy operation.
What
s more, t he plenty menu information and the easy-to-operate buttons allow you to gain
information as much as possible in measurement ; the multifunction al knobs and the powerful
shortcut keys help you save a lot of time in operation; the Autoset function lets you detect sine and
square waves automatically; the Probe Check Wizard guides you to adjust the probe
compensation and set the Probe option attenuation factor. By using the three methods the
oscilloscope provides ( context-sensitive, hyperlinks, and an index ), you may master all operations
on the device in quite a short time so as to greatly improve your efficiency in production and
development.
2.2
2.2
2.2
2.2 Help
Help
Help
Help System
System
System
System
Th is oscilloscope has a Help system with topics cover ing all of its features.
You
can use the Help
system to display several kinds of information:
General information about understanding and using the oscilloscope, such as Using the Menu
System.
Information about specific menus and controls, such as the Vertical Position Control.
Advice to problems you may come across while using an oscilloscope, such as Reducing
Noise.
The Help system provides three methods for you to find the information you want :
context-sensitive, hyperlinks, and an index.
Context-Sensitive
Context-Sensitive
Context-Sensitive
Context-Sensitive
P ush the HELP front-panel button and t he oscilloscope displays information about the last menu
displayed on the screen. The HELP SCROLL LED lights beside the HORIZONTAL POSITION
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Overview
DS O5000 Series Digital Storage Oscilloscope User Manual
4
knob indicate the alternative function of the knob. If a topic uses more than one page, turn the
HELP SCROLL knob to move from page to page within the topic.
Hyperlinks
Hyperlinks
Hyperlinks
Hyperlinks
Most of the help topics contain phrases marked with angle brackets , such as <Autoset>. The y are
links to other topics. Turn the HELP SCROLL knob to move the highlight from one link to another.
Push the Show Topic option button to display the topic corresponding to the highlighted link. P ress
the Back option button to return to the previous topic.
Index
Index
Index
Index
Push the front-panel HELP button, and then p ress the Index option button. Push the Page Up or
Page Down option button until you find the index page which contains the topic you want to view.
Turn the HELP SCROLL knob to highlight a help topic. P ress the Show Topic option button to
display the topic.
NOTE
NOTE
NOTE
NOTE :
:
:
: P
P
P
P ress
ress
ress
ress the
the
the
the Exit
Exit
Exit
Exit option
option
option
option button
button
button
button or
or
or
or any
any
any
any menu
menu
menu
menu button
button
button
button to
to
to
to remove
remove
remove
remove the
the
the
the Help
Help
Help
Help text
text
text
text from
from
from
from the
the
the
the
screen
screen
screen
screen and
and
and
and return
return
return
return to
to
to
to displaying
displaying
displaying
displaying waveforms.
waveforms.
waveforms.
waveforms.
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Getting Started Guide
DS O5000 Series Digital Storage Oscilloscope User Manual
5
Chapter
Chapter
Chapter
Chapter 3
3
3
3 Getting
Getting
Getting
Getting Started
Started
Started
Started Guide
Guide
Guide
Guide
3.1
3.1
3.1
3.1 Installation
Installation
Installation
Installation
To
keep proper ventilation of the oscilloscope in operation, leave a space of more than 5cm away
from the top and the two sides of the product.
3.1.1
3.1.1
3.1.1
3.1.1 Power
Power
Power
Power Supply
Supply
Supply
Supply
Use a power supply that delivers 90 to 24 0 V
RMS
, 45 to 440 Hz .
3.1.2
3.1.2
3.1.2
3.1.2 Power
Power
Power
Power Cord
Cord
Cord
Cord
Use only power cords designed for this product . Refer to 8.2 Accessories for specific standards .
3.2
3.2
3.2
3.2 Functional
Functional
Functional
Functional Check
Check
Check
Check
Follow the steps below to p erform a quick functional check to your oscilloscope .
3.2.1
3.2.1
3.2.1
3.2.1 Power
Power
Power
Power on
on
on
on the
the
the
the oscilloscop
oscilloscop
oscilloscop
oscilloscop e
e
e
e
Plug in the oscilloscope and press the ON/OFF button. Then p ush the DEFAULT SETUP button.
The default Probe option attenuation setting is 10X.
The
The
The
The Default
Default
Default
Default Setup
Setup
Setup
Setup button
button
button
button
3.2.2
3.2.2
3.2.2
3.2.2 Connect
Connect
Connect
Connect the
the
the
the oscilloscope
oscilloscope
oscilloscope
oscilloscope
Set the switch on the probe to 10X and connect the probe to C hannel 1 on the oscilloscope. First,
align the slot in the probe connector with the protuberance on the CH1 BNC and push to connect ;
then, t urn to right to lock the probe in place ; after that, c onnect the probe tip and reference lead to
the PROBE COMP connectors. There is a mark on the panel: Probe COMP ~5V@1KHz .
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Getting Started Guide
DS O5000 Series Digital Storage Oscilloscope User Manual
6
CH1: to connect with the probe
PROBE COMP
3.2.3
3.2.3
3.2.3
3.2.3 Observe
Observe
Observe
Observe the
the
the
the waveform
waveform
waveform
waveform
P ress the AUTOSET button and you should see w ithin a few seconds a square wave of about 5V
peak-to-peak at 1kHz in the display . P ress the CH1 MENU button twice to remove C hannel 1 .
P ush the CH2 MENU button and repeat S tep 2 and Step 3 to observe C hannel 2.
3.3
3.3
3.3
3.3 Probe
Probe
Probe
Probe Examination
Examination
Examination
Examination
3.3.1
3.3.1
3.3.1
3.3.1 Safety
Safety
Safety
Safety
W hen using the probe, keep your fingers behind the guard on the probe bod y t o avoid electric
shock . D o not touch metallic portions of the probe head while it is connected to a voltage source.
Connect the probe to the oscilloscope and connect the ground terminal to ground before you start
any measurement s .
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Getting Started Guide
DS O5000 Series Digital Storage Oscilloscope User Manual
7
3.3.2
3.3.2
3.3.2
3.3.2 Use
Use
Use
Use of
of
of
of Probe
Probe
Probe
Probe Check
Check
Check
Check Wizard
Wizard
Wizard
Wizard
Every time you connect a probe to an input channel , y ou should use the probe check wizard to
verify that this probe is operating correctly. There are two ways to do this:
1 Use the vertical menu (for example, push the CH1 MENU button ) to s et the Probe option
attenuation factor .
2 Press the PROBE CHECK button to use the Probe Check Wizard and configure the probe
option attenuation factor properly following menu prompts.
3.4
3.4
3.4
3.4 Manual
Manual
Manual
Manual Probe
Probe
Probe
Probe Compensation
Compensation
Compensation
Compensation
Upon the first connection of a probe and an input channel, yo u should manually perform this
adjustment to match the probe to the input channel. Uncompensated or miscompensated probes
may lead to errors or faults in measurement.
To
adjust the probe compensation, follow the steps
below.
1. Set the Probe option attenuation in the channel menu to 10X. Set the switch on the probe to
10X and connect the probe to C hannel 1 on the oscilloscope. If you use the probe hook-tip,
ensure it is firmly insert ed onto the probe. Attach the probe tip to the PROBE COMP
~5V@1KHz connector and the reference lead to the PROBE COMP Ground connector.
Display the channel and then p ress the AUTOSET button .
2. Check the shape of the displayed waveform.
Compensated correctly
Overcompensated
Undercompensated
3. If necessary, use a nonmetallic screwdriver to adjust the variable capacity of your probe until
the shape of the waveform turns to be the same as the above figure . Repeat this step as
necessary. See the figure below for the way of adjustment.
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3.5
3.5
3.5
3.5 Probe
Probe
Probe
Probe Attenuation
Attenuation
Attenuation
Attenuation Setting
Setting
Setting
Setting
Probes are of various attenuation factors which affect the vertical scale of the signal. The Probe
Check function is used to verify if the Probe attenuation option matches the attenuation of the
probe.
As an alternative method to Probe Check, you can push a vertical menu button (such as the CH 1
MENU button) and select the Probe option that matches the attenuation factor of your probe .
Make sure that the Attenuation switch on the probe matches the Probe option in the oscilloscope.
Switch settings are 1X and 10X.
When the Attenuation switch is set to 1X, the probe limits the bandwidth of the oscilloscope to
6 MHz.
To
use the full bandwidth of the oscilloscope, be sure to set the switch to 10X .
3.6
3.6
3.6
3.6 Self
Self
Self
Self Calibratio
Calibratio
Calibratio
Calibratio n
n
n
n
The self calibration routine helps optimize the oscilloscope signal path for maximum measurement
accuracy.
You
can run the routine at any time but should always run it if the ambient temperature
changes by 5 or more. For a more accurate calibration, please power on the oscilloscope and
wait for 20 minutes until it has adequately warmed up.
To
compensate the signal path, disconnect any probes or cables from the front-panel input
connectors. Then, push the UTILITY button, select the Do Self Cal option and follow the directions
on the screen .
.
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DS O5000 Series Digital Storage Oscilloscope User Manual
9
Chapter
Chapter
Chapter
Chapter 4
4
4
4 Main
Main
Main
Main Feature
Feature
Feature
Feature Description
Description
Description
Description
This chapter provides some general information that you need to learn before us ing an
oscilloscope. It contains :
1 . Oscilloscope setup
2 . Trigger
3 . Data acquisition
4 . Waveform scaling and positioning
5 . Waveform measurement
4.1
4.1
4.1
4.1 Oscilloscope
Oscilloscope
Oscilloscope
Oscilloscope Setup
Setup
Setup
Setup
While operating the oscilloscope, you may often use three features: Autoset, saving a setup and
recalling a setup. Hereinafter they are introduced one by one.
Autoset:
Autoset:
Autoset:
Autoset: This function can be used to adjust the horizontal and vertical scales of the oscilloscope
automatically and set the trigger coupling, type, position, slope, level and mode, etc., to acquire a
stable waveform display.
Saving
Saving
Saving
Saving a
a
a
a Setup:
Setup:
Setup:
Setup: By default, the oscilloscope will save the setup each time before being closed,
and automatically recall the setup once being turned on.
(Note:
(Note:
(Note:
(Note: If
If
If
If you
you
you
you modify
modify
modify
modify the
the
the
the setup,
setup,
setup,
setup, please
please
please
please
wait
wait
wait
wait for
for
for
for more
more
more
more than
than
than
than 5
5
5
5 seconds
seconds
seconds
seconds before
before
before
before turning
turning
turning
turning off
off
off
off the
the
the
the oscilloscope
oscilloscope
oscilloscope
oscilloscope to
to
to
to ensure
ensure
ensure
ensure the
the
the
the proper
proper
proper
proper
storage
storage
storage
storage of
of
of
of new
new
new
new settings.)
settings.)
settings.)
settings.)
You
can save 10 settings permanently in the oscilloscope and reset
them as necessary.
Recalling
Recalling
Recalling
Recalling a
a
a
a Setup:
Setup:
Setup:
Setup: The oscilloscope can recall any of your saved setups or the default factory
setup.
Default
Default
Default
Default Setup:
Setup:
Setup:
Setup: The oscilloscope is preset for normal operations when it is shipped from the
factory. This is the default setup. You may recall this setup at any time for your requirements. To
view the default settings, refer to Section 5. 6 .3 .
4.2
4.2
4.2
4.2 Trigger
Trigger
Trigger
Trigger
The trigger determines when the oscilloscope begins to acquire data and display a waveform.
Once a trigger is properly set up, the oscilloscope can convert unstable displays or blank screens
to meaningful waveforms. Here introduce some basic concepts about trigger.
Trigger
Trigger
Trigger
Trigger Source:
Source:
Source:
Source: The trigger can be generated with multiple sources. The most common one is the
input channel (alternative between CH1 and CH2). Whether the input signal is displayed or not, it
can trigger normal operation s . Also the trigger source can be any signal connected to an external
trigger channel or the AC power line (only for Edge triggers). Th e source with the AC power line
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DS O5000 Series Digital Storage Oscilloscope User Manual
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show s the frequency relationship between the signal and the AC commercial power .
Trigger
Trigger
Trigger
Trigger Type:
Type:
Type:
Type: The oscilloscope has six types of triggers: Edge, Video, Pulse Width, Slope,
Overtime and Swap.
Edge
Edge
Edge
Edge Trigger
Trigger
Trigger
Trigger uses the analog or digital test circuits for triggering. It happens when the
input trigger source crosses a specified level in a specified direction.
Video
Video
Video
Video Trigger
Trigger
Trigger
Trigger performs a field or line trigger through standard video signals.
Pulse
Pulse
Pulse
Pulse Width
Width
Width
Width Trigger
Trigger
Trigger
Trigger can trigger normal or abnormal pulses that meet trigger conditions.
Slope
Slope
Slope
Slope Trigger
Trigger
Trigger
Trigger uses the rise and fall times on the edge of signal for triggering.
Overtime
Overtime
Overtime
Overtime Trigger
Trigger
Trigger
Trigger happens after the edge of signal reaches the set time.
Swap
Swap
Swap
Swap Trigger
Trigger
Trigger
Trigger , as a feature of analog oscilloscopes, gives stable displays of signals at
two different frequencies. Mainly it uses a specific frequency to switch between two
analog channels CH1 and CH2 so that the channels will generate swap trigger signals
through the trigger circuit ry .
Trigger
Trigger
Trigger
Trigger Mode:
Mode:
Mode:
Mode:
You
can select the Auto or Normal m ode to define how the oscilloscope acquires
data when it does not detect a trigger condition. Auto
Auto
Auto
Auto Mode
Mode
Mode
Mode performs the acquisition freely in
absence of valid trigger. It allows the generation of untriggered waveforms with the time base set
to 80ms/div or slower. Normal
Normal
Normal
Normal Mode
Mode
Mode
Mode updates the displayed waveforms only when the
oscilloscope detects a valid trigger condition. B efore this update, the oscilloscope still displays the
old waveforms. This mode shall be used when you want to only view the effectively triggered
waveforms. In this mode, the oscilloscope displays waveforms only after the first trigger.
To
perform a single
single
single
single sequence
sequence
sequence
sequence acquisition
acquisition
acquisition
acquisition , push the SINGLE SEQ button.
Trigger
Trigger
Trigger
Trigger Coupling:
Coupling:
Coupling:
Coupling: Trigger Coupling determine s which part of the signal will be delivered to the
trigger circuit. This can help to obtain a stable display of the waveform.
To
use trigger coupling,
push the TRIG MENU button, select an Edge or Pulse trigger, and then select a Coupling option.
Trigger
Trigger
Trigger
Trigger Position:
Position:
Position:
Position: The horizontal position control establishes the time between the trigger position
and the screen center.
Slope
Slope
Slope
Slope and
and
and
and Level
Level
Level
Level :
:
:
: The Slope and Level controls help to define the trigger. The Slope option
determines whether the trigger point is on the rising or falling edge of a signal.
To
perform the
trigger slope control, press the TRIG MENU button , select an Edge trigger, and use the Slope
button to select rising or falling. The TRIGGER LEVEL knob controls the trigger point is on which
position o f the edge.
Trigger slope can be rising or falling
Rising E dge
Falling E dge
Trigger level can be
adjusted vertically
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DS O5000 Series Digital Storage Oscilloscope User Manual
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4.3
4.3
4.3
4.3 Data
Data
Data
Data Acquisition
Acquisition
Acquisition
Acquisition
When you acquire a n analog signal, the oscilloscope will convert it into a digital one . There are
two kinds of acquisition: Real-time acquisition and Equivalent acquisition. The real-time acquisition
has three modes: Normal , Peak Detect, and Average. The acquisition rate is affected by the
setting of time base.
Normal:
Normal:
Normal:
Normal: In this acquisition mode, the oscilloscope samples the signal in evenly spaced intervals to
establish the waveform. This mode accurately represents signals in most time. However, it does
not acquire rapid variations in the analog signal that may occur between two samples , which can
result in aliasing and may cause narrow pulses to be missed. In such cases, you should use the
Peak Detect mode to acquire data.
Peak
Peak
Peak
Peak Detect
Detect
Detect
Detect :
:
:
: In this acquisition mode, the oscilloscope get s the maximum and minimum values of
the input signal over each sample interval and uses these values to display the waveform. In this
way, the oscilloscope can acquire and display those narrow pulses that may have otherwise been
missed in Normal
Normal
Normal
Normal mode. However, n oise will appear to be higher in this mode.
Average
Average
Average
Average :
:
:
: In this acquisition mode, the oscilloscope acquires several waveforms, averages them,
and displays the resulting waveform.
You
can use this mode to reduce random noise.
Equivalent
Equivalent
Equivalent
Equivalent Acquisition:
Acquisition:
Acquisition:
Acquisition: This kind of acquisition can be utilized for periodic signals. In case the
acquisition rate is too low when using the real-time acquisition, the oscilloscope will use a fixed
rate to acquire data with a stationary tiny delay after each acquisition of a frame of data. A fter
repeating this acquisition for N times, the oscilloscope will arrange the acquired N frames of data
by time to make up a new frame of data. Then the waveform can be recovered. The number of
times N is related to the equivalent acquisition rate.
Time
Time
Time
Time Base
Base
Base
Base :
:
:
: The oscilloscope digitizes waveforms by acquiring the value of an input signal at
discrete points. The time base helps to control how often the values are digitized. U se the
SEC/DIV knob t o adjust the time base to a horizontal scale that suits your purpose.
4.4
4.4
4.4
4.4 Waveform
Waveform
Waveform
Waveform Scaling
Scaling
Scaling
Scaling and
and
and
and Positioning
Positioning
Positioning
Positioning
T he display of waveforms on the screen can be changed by adjusting their scale and position.
Once the scale changes , the waveform display will increase or decrease in size. Once the position
changes , the waveform will move up, down, right, or left.
The channel reference indicator (located on the left of the graticule) identifies each waveform on
the screen . It points to the ground level of the waveform record.
Vertical
Vertical
Vertical
Vertical Scale
Scale
Scale
Scale and
and
and
and Position:
Position:
Position:
Position: The vertical position of a waveform can be changed by moving it up
and down on the screen. To compare data, you may align a waveform over another. W hen you
push the VOLTS/DIV button to change the vertical scale of a waveform, the waveform display will
contract or expand vertically to the ground level.
Horizontal
Horizontal
Horizontal
Horizontal Scale
Scale
Scale
Scale and
and
and
and Position:
Position:
Position:
Position: Pretrigger
Pretrigger
Pretrigger
Pretrigger Information
Information
Information
Information
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DS O5000 Series Digital Storage Oscilloscope User Manual
12
You can adjust the HORIZONTAL POSITION control to view waveform data before the trigger,
after the trigger, or some of each. When you change the horizontal position of a waveform, you are
actually changing the time between the trigger position and the screen center .
For example, if you want to find out the cause of a glitch in your test circuit, you should trigger on
the glitch and make the pretrigger period l ong enough to capture data before the glitch. Then y ou
can analyze the pretrigger data and perhaps find the cause.
You
are allowed to change the
horizontal scale of all the waveforms by turning the SEC/DIV knob. For example, you may want to
see just one cycle of a waveform to measure the overshoot on its rising edge. The oscilloscope
shows the horizontal scale as time per division in the scale readout. Since all active waveforms
use the same time base, the oscilloscope only displays one value for all the active channels.
4.5
4.5
4.5
4.5 Waveform
Waveform
Waveform
Waveform Measurement
Measurement
Measurement
Measurement
The oscilloscope displays graphs of voltage versus time and can help to measure the displayed
waveform. There are several ways to take measurements, using the graticule, the cursors or
performing an automatic measurement.
Graticule:
Graticule:
Graticule:
Graticule: This method allows you to make a quick, visual estimate and take a simple
measurement through the graticule divisions and the scale factor.
For example, y ou can take simple measurements by counting the major and minor graticule
divisions involved and multiplying by the scale factor. I f you counted 6 major vertical graticule
divisions between the minimum and maximum values of a waveform and knew you had a scale
factor of 50 mV/division, y ou could easily calculate your peak-to-peak voltage as follows:
6 divisions x 50 mV/division = 3 00mV.
Cursor:
Cursor:
Cursor:
Cursor: This method allows you to take measurements by moving the cursors. Cursors always
appear in pairs and the displayed readouts are just their measured values. There are two kinds of
cursors: Amplitude Cursor and Time Cursor. The amplitude cursor appear as a horizontal broken
line, measuring the vertical parameters. The time cursor appear as a vertical broken line,
measuring the horizontal parameters.
When us ing cursors, please make sure to set the Source to the waveform that you want to
measure on the screen .
To
use cursors, push the CURSOR button.
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Automatic
Automatic
Automatic
Automatic Measurement:
Measurement:
Measurement:
Measurement: The oscilloscope performs all the calculations automatically in this
mode. As this measurement uses the waveform record points, it is more precise than the graticule
and cursor measurements. Automatic measurements show the measurement results by readouts
which are periodically updated with the new data acquired by the oscilloscope.
Cursor
Cursor
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DS O5000 Series Digital Storage Oscilloscope User Manual
14
Chapter
Chapter
Chapter
Chapter 5
5
5
5 Basic
Basic
Basic
Basic Operation
Operation
Operation
Operation
The front panel of the oscilloscope is divided into several functional areas. In this chapter we will
give a quick overview of all control buttons and knobs on the front panel as well as the displayed
information on the screen and relative testing operations. The figure below illustrates the front
panel of the DSO5000 series digital oscilloscope.
Front Panel of DSO5000 Series
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
15
5.1
5.1
5.1
5.1 Display
Display
Display
Display Area
Area
Area
Area
1013 12
11
17 16 15 14
1 2 3 4 5 6 7 8
9
18
19
1. Display F ormat :
: YT
: Vectors
: Gray indicates auto persistence ; Green means persistence display is enabled. When
the icon is set to green, the time for persistence display will be shown behind it.
: XY
: Dots
2. Acquisition Mode: Normal, Peak Detect or Average
3. Trigger Status:
The oscilloscope is acquiring pretriggered data.
All pretriggered data have been acquired and the oscilloscope is ready to accept a trigger.
T
T
T
T The oscilloscope has detected a trigger and is acquiring the posttrigger information.
The oscilloscope works in auto mode and is acquiring waveforms in the absence of triggers.
The oscilloscope is acquiring and displaying waveform data continuously in scan mode.
The oscilloscope has stopped acquiring waveform data.
S
S
S
S The oscilloscope has finished a single sequence acquisition.
4.
Tool
Icon:
: If this icon lights up, it means the keyboard of the oscilloscope is locked by the host computer
via USB control.
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DS O5000 Series Digital Storage Oscilloscope User Manual
16
: If this icon lights up, it means the USB disk has been connected.
: This icon lights up only when the USB slave interface is connected with the computer.
5. Readout shows main time base setting.
6. Main Time Base Window
7. Display of window
s position in data memory and data length.
8. Window Time Base
9. Operating Menu shows different information for different function keys.
10. Readout shows frequency count.
11. Readout points out horizontal waveform position
12. Trigger Type:
: Edge trigger on the rising edge.
: Edge trigger on the falling edge.
: Video trigger with line synchronization.
: Video trigger with field synchronization.
: Pulse Width trigger, positive polarity.
: Pulse Width trigger, negative polarity.
13. Pop-up Prompt
14. Readout tells trigger level.
15. Icon indicates whether the waveform is inverted or not.
16. 20M Bandwidth Limit. If this icon lights up, it means the bandwidth limit is enabled, otherwise
disabled.
17. Icon indicates channel coupling.
18. Channel Marker
19. Window displays waveform.
5.1.1
5.1.1
5.1.1
5.1.1 XY
XY
XY
XY Format
Format
Format
Format
T he XY format is used to analyze phase differences, such as those represented by Lissajous
patterns. The format plots the voltage on CH 1 against the voltage on CH 2, where CH 1 is the
horizontal axis and CH 2 is the vertical axis. The oscilloscope uses the untriggered Normal
acquisition mode and displays data as dots. The sampling rate is fixed at 1 MS/s.
The oscilloscope can acquire waveforms in YT format at any sampling rate.
You
may view the
same waveform in XY format.
To
perform this operation, stop the acquisition and change the
display format to
XY.
The table below shows how to operate some controls in XY format.
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Controls
Controls
Controls
Controls Usable
Usable
Usable
Usable or
or
or
or not
not
not
not in
in
in
in XY
XY
XY
XY format
format
format
format
CH1 VOLTS/DIV and VERTICAL POSITION controls Set the horizontal scale and position
CH2 VOLTS/DIV and VERTICAL POSITION controls
Continuously set the vertical scale and
position
Reference or Math Unusable
Cursors Unusable
Autoset (display format reset to YT) Unusable
Time base controls Unusable
Trigger controls Unusable
5.2
5.2
5.2
5.2 Horizontal
Horizontal
Horizontal
Horizontal Controls
Controls
Controls
Controls
U se the horizontal controls to change the horizontal scale and position of waveforms. The
horizontal position readout shows the time represented by the center of the screen, using the
trigger time as zero. When you c hang e the horizontal scale , the waveform will expand or contract
to the screen center. The readout near the upper right of the screen shows the current horizontal
position in second. M represents Main Time Base , and W indicates Window Time Base . The
oscilloscope also has an arrow icon at the top of the graticule to indicate the horizontal position.
1.
1.
1.
1. HORIZONTAL
HORIZONTAL
HORIZONTAL
HORIZONTAL POSITION
POSITION
POSITION
POSITION Knob
Knob
Knob
Knob :
:
:
: Used to control the trigger position against the screen center.
Push this button to reset the trigger point back to the screen center.
AN : Used to set the horizontal position as zero.
2
2
2
2 .
.
.
. Each option in HORIZ
HORIZ
HORIZ
HORIZ MENU
MENU
MENU
MENU is described as follows.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Window Control Major Window
Minor Window
Selects the major or minor window in dual-window
mode. The window is highlighted once selected.
Press this option button in single-window mode to
enter the daul-window mode.
Mark Right arrow
Left arrow
This function is usable only in dual-window mode. It
sets marks at some waveform record locations that
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DS O5000 Series Digital Storage Oscilloscope User Manual
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Set/Clear
Clear All
users are interested in, and searches for these marks
by right and left arrows. Then it positions the window
to this mark for further observation.
Holdoff None Select this menu and turn the multi-functional knob to
adjust the trigger holdoff time within the range of
100ns-10s . Select this menu and push the
multi-functional knob to reset the holdoff time with the
starting value 100ns .
Autoplay None This function is usable in dual-window mode. Push
this menu button and auto move it from left to right at
a specified speed. In the expanded window will
display corresponding waveforms until it stops once
reaching the rightmost side of the major scan window
Single-window
Single-window
Single-window
Single-window Mode
Mode
Mode
Mode
Dual-window
Dual-window
Dual-window
Dual-window Mode
Mode
Mode
Mode (Full
(Full
(Full
(Full Screen)
Screen)
Screen)
Screen)
Major Window
Minor Window
(Expanded Window)
Location of ex pa nded window data in memory
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3.SEC/DIV
3.SEC/DIV
3.SEC/DIV
3.SEC/DIV Knob
Knob
Knob
Knob :
:
:
: Used to change the horizontal time scale so as to magnify or compress the
waveform horizontally. If the waveform acquisition is stopped (by using the RUN/STOP or SINGLE
SEQ button), the SEC/DIV control will expand or compress the waveform. In dual-window mode,
push this knob to select major or minor window. When the major window is selected, this knob
provides the same functions as it provides in single-mode window. When the minor window is
selected, turn this knob to scale the waveform whose magnification is up to 1000.
Notes:
Notes:
Notes:
Notes:
1.
1.
1.
1. For
For
For
For more
more
more
more information
information
information
information of
of
of
of the
the
the
the trigger
trigger
trigger
trigger holdoff,
holdoff,
holdoff,
holdoff, see
see
see
see Section
Section
Section
Section Trigger
Trigger
Trigger
Trigger Controls
Controls
Controls
Controls .
.
.
.
2.
2.
2.
2. In
In
In
In single-window
single-window
single-window
single-window mode,
mode,
mode,
mode, press
press
press
press F0
F0
F0
F0 to
to
to
to hide
hide
hide
hide or
or
or
or show
show
show
show the
the
the
the menus
menus
menus
menus on
on
on
on the
the
the
the right
right
right
right side.
side.
side.
side. The
The
The
The
dual-window
dual-window
dual-window
dual-window mode
mode
mode
mode does
does
does
does not
not
not
not support
support
support
support the
the
the
the menu
menu
menu
menu hiding
hiding
hiding
hiding function.
function.
function.
function.
5.2.1
5.2.1
5.2.1
5.2.1 Scan
Scan
Scan
Scan Mode
Mode
Mode
Mode Display
Display
Display
Display (Roll
(Roll
(Roll
(Roll Mode)
Mode)
Mode)
Mode)
With the SEC/DIV control set to 8 0ms/div or slower and the trigger mode set to Auto, the
oscilloscope work s in the scan acquisition mode. In this mode, the waveform display is update d
from left to right without any trigger or horizontal position control.
5.3
5.3
5.3
5.3 Vertical
Vertical
Vertical
Vertical Controls
Controls
Controls
Controls
Vertical controls can be used to display and remove waveforms, adjust vertical scale and position,
set input parameters and perform math calculations. Each channel has a separate vertical menu
to set. See below for menu description.
1. VERTICAL
VERTICAL
VERTICAL
VERTICAL POSITION
POSITION
POSITION
POSITION Knob:
Knob:
Knob:
Knob: Move the channel waveform up and down on the screen. In
dual-window mode, move the waveforms in both windows at the same time in a same direction.
Push this knob to return waveforms to the vertical center position on the screen. Two channels
correspond to two knobs.
Multi-functional
Knob
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2. Menu
Menu
Menu
Menu (CH1,
(CH1,
(CH1,
(CH1, CH2):
CH2):
CH2):
CH2): Display vertical menu option s ; turn on or off the display of channel
waveform s .
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Coupling
DC
AC
Ground
DC passes both DC and AC components of the input
signal.
AC blocks the DC component of the input signal and
attenuates signals below 10Hz.
Ground disconnects the input signal.
20MHz Bandwidth
Limit
Unlimited
Limited
Limits the bandwidth to reduce display noise; filters the
signal to eliminate noise and other unnecessary HF
components.
VOLTS/DIV
Coarse
Fine
Selects the resolution of the VOLTS/DIV knob.
Coarse defines a 1-2-5 sequence. Fine changes the
resolution to small steps between the Coarse settings.
Probe Attenuation
1X
10X
100X
1000X
Selects a value according to the probe attenuation factor
so as to ensure correct vertical readouts. Reduce
bandwidth to 6MH z when using a 1X probe.
Invert
Off
On
Inverts the waveform relative to the reference level.
Ground
Ground
Ground
Ground Coupling
Coupling
Coupling
Coupling
Used to display a zero-volt waveform. Internally, the channel input is connected with a zero-volt
reference level.
Fine
Fine
Fine
Fine Resolution
Resolution
Resolution
Resolution
In the fine resolution setting, the vertical scale readout displays the actual VOLTS/DIV setting. The
vertical scale changes only after you adjust the VOLTS/DIV control and set to coarse.
Remove
Remove
Remove
Remove Waveform
Waveform
Waveform
Waveform Display
Display
Display
Display
To
remove a waveform from the screen , first push the menu button to display the vertical menu ,
then push again to remove the waveform.
A
channel waveform which is unnecessary to be
displayed can be use d as a trigger source or for math operations.
3. VOLTS/DIV
VOLTS/DIV
VOLTS/DIV
VOLTS/DIV Knob
Knob
Knob
Knob
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DS O5000 Series Digital Storage Oscilloscope User Manual
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Control the oscilloscope to magnify or attenuate the source signal of the channel waveform. The
vertical size of the display on the screen will change (increase or decrease) to the ground level.
Also you may use this knob to switch between coarse and fine.
4. MATH
MATH
MATH
MATH MENU
MENU
MENU
MENU :
:
:
: Display the waveform math operations. See the table below for details.
T he MATH menu contains source options for all math operations.
Operations
Operations
Operations
Operations Source
Source
Source
Source Options
Options
Options
Options Comments
Comments
Comments
Comments
CH1+CH2 Add Cha nnel 1 to Channel 2 .
CH1-CH2
Subtract t he C hannel 2 waveform from the
C hannel 1 waveform .
CH2-CH1
S ubtract t he C hannel 1 waveform from the
C hannel 2 waveform .
FFT CH1 or CH2
Three types of window available for selection:
Hanning , Flattop , Rectangular .
Zoom: Use the FFT Zoom button to adjust the
window size.
Scale: x1 , x2 , x5 , x10.
Note:
Note:
Note:
Note: All
All
All
All selected
selected
selected
selected menus
menus
menus
menus are
are
are
are highlighted
highlighted
highlighted
highlighted in
in
in
in orange.
orange.
orange.
orange.
5.3.1
5.3.1
5.3.1
5.3.1 Math
Math
Math
Math FFT
FFT
FFT
FFT
This chapter elaborates how to use the Math FFT (Fast Fourier Transform).
You
can use the Math
FFT mode to convert a time-domain (YT) signal into its frequency components (spectrum) , and to
observe the following types of signals:
Analyze harmonics in power cord s ;
Measure harmonic content and distortion in systems ;
Characterize noise in DC power supplies ;
Test
impulse response of filters and systems ;
Analyze vibration .
To
use the Math FFT mode, perform the following tasks:
Set the source (time-domain) waveform;
Display the FFT spectrum;
Choose a type of FFT window;
Adjust the sample rate to display the fundamental frequency and harmonics without aliasing;
Use zoom controls to magnify the spectrum;
Use cursors to measure the spectrum.
5.3.1.1
5.3.1.1
5.3.1.1
5.3.1.1 Setting
Setting
Setting
Setting Time-domain
Time-domain
Time-domain
Time-domain Waveform
Waveform
Waveform
Waveform
It is necessary to set the time-domain (YT) waveform before using the FFT mode. Follow the steps
below.
1. Push the AUTOSET button to display a YT waveform.
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
22
2. Turn the VERTICAL POSITION knob to vertically move the YT waveform to the center (zero
division) so as to ensure the FFT will display a true DC value.
3. Turn the HORIZONTAL POSITION knob to position the part of the YT waveform to be
analyzed in the center eight divisions of the screen . The oscilloscope uses the 2048 center
points of the time-domain waveform to calculate the FFT spectrum.
4. Turn the VOLTS/DIV knob to ensure the entire waveform remains on the screen. If the entire
waveform is invisible, the oscilloscope may display wrong FFT results by adding
high-frequency components.
5. Turn the SEC/DIV knob to provide the resolution you need in the FFT spectrum.
6. If possible, set the oscilloscope to display multiple signal cycles.
If you turn the SEC/DIV knob to select a faster setting (fewer cycles), the FFT spectrum will display
a larger frequency range and reduce the possibility of FFT aliasing.
To
set the FFT display, follow the steps below.
1. Push the MATH MENU button;
2. Set the Operation option to FFT ;
3. Select the Math FFT Source channel.
In many situations, the oscilloscope can also generate a useful FFT spectrum despite the YT
waveform not being triggered. This is especially true if the signal is periodic or random (such as
noise).
Note:
Note:
Note:
Note: You
You
You
You should
should
should
should trigger
trigger
trigger
trigger and
and
and
and position
position
position
position transient
transient
transient
transient or
or
or
or burst
burst
burst
burst waveforms
waveforms
waveforms
waveforms as
as
as
as close
close
close
close as
as
as
as possible
possible
possible
possible to
to
to
to
the
the
the
the screen
screen
screen
screen center.
center.
center.
center.
Nyquist
Nyquist
Nyquist
Nyquist Frequency
Frequency
Frequency
Frequency
The highest frequency that any real-time digital oscilloscope can measure without errors is half of
the sample rate, which is called the Nyquist frequency. Frequency information beyond the Nyquist
frequency is undersampled which brings about the FFT aliasing. The math function can convert
the center 2048 points of the time-domain waveform to an FFT spectrum. The resulting FFT
spectrum contains 1024 points from DC (0Hz) to the Nyquist frequency. Usually, the screen
compresses the FFT spectrum horizontally to 250 points, but you can use the FFT Zoom function
to expand the FFT spectrum so that you can clearly view the frequency components at each of the
1024 data points in the FFT spectrum.
Note:
Note:
Note:
Note: The
The
The
The oscilloscope
oscilloscope
oscilloscope
oscilloscope
s
s
s
s vertical
vertical
vertical
vertical response
response
response
response is
is
is
is a
a
a
a little
little
little
little bit
bit
bit
bit larger
larger
larger
larger than
than
than
than its
its
its
its bandwidth
bandwidth
bandwidth
bandwidth (
(
(
( 60MHz
60MHz
60MHz
60MHz ,
,
,
,
100MHz
100MHz
100MHz
100MHz or
or
or
or 20
20
20
20 0MHz
0MHz
0MHz
0MHz ,
,
,
, depending
depending
depending
depending on
on
on
on the
the
the
the model;
model;
model;
model; or
or
or
or 20MHz
20MHz
20MHz
20MHz when
when
when
when the
the
the
the Bandwidth
Bandwidth
Bandwidth
Bandwidth Limit
Limit
Limit
Limit option
option
option
option is
is
is
is
set
set
set
set to
to
to
to Limited).
Limited).
Limited).
Limited). Therefore,
Therefore,
Therefore,
Therefore, the
the
the
the FFT
FFT
FFT
FFT spectrum
spectrum
spectrum
spectrum can
can
can
can display
display
display
display valid
valid
valid
valid frequency
frequency
frequency
frequency information
information
information
information above
above
above
above
the
the
the
the oscilloscope
oscilloscope
oscilloscope
oscilloscope bandwidth.
bandwidth.
bandwidth.
bandwidth. However,
However,
However,
However, the
the
the
the amplitude
amplitude
amplitude
amplitude information
information
information
information near
near
near
near or
or
or
or above
above
above
above the
the
the
the
bandwidth
bandwidth
bandwidth
bandwidth will
will
will
will not
not
not
not be
be
be
be accurate.
accurate.
accurate.
accurate.
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DS O5000 Series Digital Storage Oscilloscope User Manual
23
5.3.1.2
5.3.1.2
5.3.1.2
5.3.1.2 Displaying
Displaying
Displaying
Displaying FFT
FFT
FFT
FFT Spectrum
Spectrum
Spectrum
Spectrum
Push the MATH MENU button to display the Math menu. Us e the options to select the Source
channel, the Window algorithm and the FFT Zoom factor. Only one FFT spectrum can be
displayed at a time.
Math
Math
Math
Math FFT
FFT
FFT
FFT Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Source CH1, CH2 Choose a channel to be the FFT source.
Window
Hanning, Flattop,
Rectangular
Select a type of the FFT window. For more
information, refer to Section 5.3.1.3 .
FFT Zoom X1, X2, X5, X10
Change the horizontal magnification of the FFT
display. For detailed information, refer to Section
5.3.1. 6 .
Fundamental frequency component
F requency component
2 3 4
5
1
1. Frequency at the center graticule line
2. Vertical scale in dB per division (0dB=1V
RMS
)
3. Horizontal scale in frequency per division
4. Sample rate in number of samples per second
5. FFT window type
5.3.1.3
5.3.1.3
5.3.1.3
5.3.1.3 Selecting
Selecting
Selecting
Selecting FFT
FFT
FFT
FFT Window
Window
Window
Window
Using windows can eliminate the spectral leakage in the FFT spectrum. The FFT algorithm
assumes that the YT waveform repeats all the time. When the number of cycles is integral (1, 2,
3 ...), the YT waveform starts and ends at the same amplitude and there are no discontinuities in
the signal shape.
If the number of cycles is nonintegral, the YT waveform starts and ends at different amplitudes and
transitions between the start and end points will cause discontinuities in the signal that introduces
background
Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
24
high-frequency transients.
Applying a window to the YT waveform changes the waveform so that the start and stop values
are close to each other, which reduces the discontinuities.
The Math FFT function has three FFT Window options. There is a trade-off between frequency
resolution and amplitude accuracy for each type of window.
You
shall determine which one to
choose according to the object you want to measure and the source signal characteristics.
Window
Window
Window
Window Measurement
Measurement
Measurement
Measurement Characteristics
Characteristics
Characteristics
Characteristics
Hanning Periodic Waveform Better frequency, poorer amplitude accuracy than Flattop
Flattop Periodic Waveform Better amplitude, poorer frequency accuracy than Hanning
Rectangular
Pulse or Transient
Waveform
Special-purpose window applicable to discontinuous
waveforms. This is actually the same as no windows.
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DS O5000 Series Digital Storage Oscilloscope User Manual
25
5.3.1.4
5.3.1.4
5.3.1.4
5.3.1.4 FFT
FFT
FFT
FFT Aliasing
Aliasing
Aliasing
Aliasing
Problems occur when the time-domain waveform acquired by the oscilloscope contains frequency
components higher than the Nyquist frequency. The frequency components above the Nyquist
frequency will be undersampled and displayed as lower frequency components that fold back
from the Nyquist frequency. These erroneous components are called aliases.
5.3.1.5
5.3.1.5
5.3.1.5
5.3.1.5 Eliminating
Eliminating
Eliminating
Eliminating Aliases
Aliases
Aliases
Aliases
To
eliminate aliases, use the following methods.
Turn the SEC/DIV knob to set a faster sample rate. Because the Nyquist frequency increases
as you increase the sample rate, the aliased frequency components will be displayed correct.
If too many frequency components appear on the screen, you may use the FFT Zoom option
to magnify the FFT spectrum.
If there is no need to observe the frequency components above 20MHz, set the Bandwidth
Limit option to Limited.
Filter the signal input from outside and limit the bandwidth of the source waveform to lower
than the Nyquist frequency.
Identify and ignore the aliased frequencies.
Use zoom controls and cursors to magnify and measure the FFT spectrum.
5.3.1.6
5.3.1.6
5.3.1.6
5.3.1.6 Magnifying
Magnifying
Magnifying
Magnifying and
and
and
and Positioning
Positioning
Positioning
Positioning FFT
FFT
FFT
FFT Spectrum
Spectrum
Spectrum
Spectrum
You
may scale the FFT spectrum and use cursors to measure it through the FFT Zoom option
which enables the horizontal magnification.
To
vertically magnify the spectrum, use the vertical
controls.
Horizontal
Horizontal
Horizontal
Horizontal Zoom
Zoom
Zoom
Zoom and
and
and
and Position
Position
Position
Position
You
can use the FFT Zoom option to magnify the FFT spectrum horizontally without changing the
sample rate. The available zoom factors are X1( default ) , X2 , X5 and X1 0. When the zoom factor is
set to X1 and the waveform is located at the center graticule, the left graticule line is at 0Hz and
the right is at the Nyquist frequency.
You
magnifies the FFT spectrum to the center graticule line when you change the zoom factor.
That is, the axis for horizontal magnification is the center graticule line. Turn the Horizontal
Position knob clockwise to move the FFT spectrum to the right. Push the SET TO ZERO button to
position the center spectrum at the center of the graticule.
Vertical
Vertical
Vertical
Vertical Zoom
Zoom
Zoom
Zoom and
and
and
and Position
Position
Position
Position
When the FFT spectrum is being displayed, the channel vertical knobs become the zoom and
position controls corresponding to their respective channels. The VOLTS/DIV knob provides the
following zoom factors: X1( default ) , X2 , X5 and X1 0. The FFT spectrum is magnified vertically to
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
26
the marker M (math waveform reference point on the left edge of the screen). Turn the VERTICAL
POSITION knob clockwise to move up the spectrum.
5.3.1.7
5.3.1.7
5.3.1.7
5.3.1.7 Using
Using
Using
Using Cursors
Cursors
Cursors
Cursors to
to
to
to Measure
Measure
Measure
Measure FFT
FFT
FFT
FFT Spectrum
Spectrum
Spectrum
Spectrum
You
may use cursors to take two measurements on the FFT spectrum: amplitude (in dB) and
frequency (in Hz). Amplitude is referenced to 0db that equals 1VRMS here.
You
may use cursors
to measure at any zoom factor.
Push the CURSOR button, choose the Source option and then select Math. Press the Type option
button to select between Amplitude and Frequency. Click the SELECT CURSOR option to choose
a cursor. Then use the V0 knobs to move Cursor S and Cursor E. Use the horizontal cursor to
measure the amplitude and the vertical cursor to measure the frequency. Now the display at the
DELTA
menu is just the measured value, and the values at Cursor S and Cursor E.
Delta is the absolute value of Cursor S minus Cursor E.
Frequency Cursors
Amplitude Cursors
5.4
5.4
5.4
5.4 Trigger
Trigger
Trigger
Trigger Controls
Controls
Controls
Controls
T he trigger can be defined through the Trigger Menu and front-panel controls. There are six types
of trigger: Edge, Video, Pulse Width , Swap, Slope and Overtime . Refer to the following tables to
find a different set of options for each type of trigger .
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
27
1.
1.
1.
1. L
L
L
L evel
evel
evel
evel
It sets the amplitude level the signal must cross to cause an acquisition w hen using the Edge or
Pulse Width trigger .
2.
2.
2.
2. Set
Set
Set
Set to
to
to
to 50%
50%
50%
50%
T he trigger level is set to the vertical midpoint between the peaks of the trigger signal.
3.
3.
3.
3. Force
Force
Force
Force Trigger
Trigger
Trigger
Trigger
Used to c omplete an acquisition regardless of an adequate trigger signal. This button becomes
useless if the acquisition is already stopped.
4.
4.
4.
4. TRIG
TRIG
TRIG
TRIG MENU
MENU
MENU
MENU
Push this button to display trigger menus. The edge trigger is in common use. See the table below
for details.
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
28
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Trigger
Trigger
Trigger
Trigger Type
Type
Type
Type
Edge Video
Pulse Slope
Swap Overtime
By default the oscilloscope uses the edge trigger which
t riggers the oscilloscope on the rising or falling edge of the
input signal when it crosses the trigger level (threshold ).
Source
CH1
CH2
EXT
EXT/5
AC Line
Select the input source as the trigger signal.
CH1 , CH2 : No matter the waveform is displayed or not, a
certain channel will be triggered.
EXT : Does not display the trigger signal and allows a
trigger level range of +1.6V to -1.6V .
EXT/5 : Same as EXT option, but attenuates the signal by
a factor of 5 and allows a trigger level range of + 8 V to - 8
V
.
AC Line: Uses a signal derived from the power cord as the
trigger source.
Mode
Auto
Normal
Select a trigger mode.
By default, the oscilloscope uses the Auto mode. In this
mode, the oscilloscope is forced to trigger when it does
not detect a trigger within a certain amount of time based
on the SEC/DIV setting . The oscilloscope goes into the
scan mode at 8 0ms/div or slower time base settings .
In the Normal mode, the oscilloscope u pdates the display
only when it detects a valid trigger condition . New
waveforms are not displayed until they replace old ones .
Use this mode to just view v alid triggered waveforms .
Only after the first trigger does the display appear.
Coupling
AC
DC
HF Reject
LF Reject
Select the components of the trigger signal applied to the
trigger circuitry .
AC: Blocks DC components and attenuates signals below
10Hz.
DC: Passes all components of the signal.
HF Reject: Attenuates the high-frequency components
above 80kHz.
LF Reject: Blocks DC components and attenuates the
low-frequency components below 8kHz.
NOTE:
NOTE:
NOTE:
NOTE: Trigger
Trigger
Trigger
Trigger coupling
coupling
coupling
coupling only
only
only
only affects
affects
affects
affects the
the
the
the signal
signal
signal
signal passed
passed
passed
passed through
through
through
through the
the
the
the trigger
trigger
trigger
trigger system.
system.
system.
system. It
It
It
It does
does
does
does
not
not
not
not affect
affect
affect
affect the
the
the
the bandwidth
bandwidth
bandwidth
bandwidth or
or
or
or coupling
coupling
coupling
coupling of
of
of
of the
the
the
the signal
signal
signal
signal displayed
displayed
displayed
displayed on
on
on
on the
the
the
the screen.
screen.
screen.
screen.
Video
Video
Video
Video Trigger
Trigger
Trigger
Trigger
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Video
With Video highlighted, an NTSC , PAL or SECAM
standard video signal will be triggered. The trigger
coupling is preset to AC.
Source
CH1
CH2
EXT
EXT/5
Select the input source as the trigger signal. Ext and
Ext/5 use the signal applied to the EXT TRIG connector
as the source .
Polarity
Normal
Inverted
Normal: Triggers on the negative edge of the sync pulse.
Inverted: Triggers on the positive edge of the sync pulse.
Sync
All Lines
Line Number
Odd Field
Even Field
All Fields
Choose a proper video sync. When selecting Line
Number for the Sync option, you may use the User
Select knob to specify a line number.
Standard
NTSC
PAL/SECAM
Choose a video standard for sync and line number
count.
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DS O5000 Series Digital Storage Oscilloscope User Manual
29
Note:
Note:
Note:
Note: When
When
When
When you
you
you
you choose
choose
choose
choose Normal
Normal
Normal
Normal Polarity,
Polarity,
Polarity,
Polarity, the
the
the
the trigger
trigger
trigger
trigger always
always
always
always occurs
occurs
occurs
occurs on
on
on
on negative-going
negative-going
negative-going
negative-going sync
sync
sync
sync
pulses.
pulses.
pulses.
pulses. If
If
If
If the
the
the
the video
video
video
video signal
signal
signal
signal contain
contain
contain
contain s
s
s
s positive-going
positive-going
positive-going
positive-going sync
sync
sync
sync pulses,
pulses,
pulses,
pulses, use
use
use
use the
the
the
the Inverted
Inverted
Inverted
Inverted Polarity
Polarity
Polarity
Polarity
option
option
option
option .
.
.
.
Pulse
Pulse
Pulse
Pulse Width
Width
Width
Width Trigger
Trigger
Trigger
Trigger
You
can use it to trigger on aberrant pulses.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Pulse
With Pulse highlighted, the trigger occurs on pulses that
meet the trigger condition (defined by the Source, When
and Set Pulse Width options).
Source
CH1
CH2
EXT
EXT5
Select the input source as the trigger signal.
When
=
<
>
Select the trigger condition.
Set Pulse
Width
20ns to 10.0 sec
With Set Pulse Width highlighted by pressing F4, turn the
multi-functional knob to set the pulse width.
Polarity
Positive
Negative
Select to trigger on positive or negative pulses.
Mode
Auto
Normal
Select the type of trigger. The Normal mode is best for
most pulse width trigger applications.
Coupling
AC
DC
HF Reject
LF Reject
Select the components of the trigger signal applied to the
trigger circuit.
More Switch between submenu pages.
Trigger
Trigger
Trigger
Trigger When
When
When
When :
:
:
: The pulse width of the source must be 5ns so that the oscilloscope can detect the
pulse.
Triggers when pulse is
equal to width setting ± 5%
= Trigger Point
Threshold level
Triggers when pulse is
greater than width setting
Triggers when pulse is not
equal to width setting ± 5%
Tolerance
Tolerance
Threshold level
Triggers when pulse is
less than width setting
, : W ithin a ± 5% tolerance , t riggers the oscilloscope when the signal pulse width is equal to
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
30
or not equal to the specified pulse width .
, : T riggers the oscilloscope when the source signal pulse width is less than or greater
than the specified pulse width .
Slope
Slope
Slope
Slope Trigger:
Trigger:
Trigger:
Trigger: Judges trigger according to the time for rising or falling, more flexible and accurate
than the Edge trigger.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Slope
Source
CH1
CH2
EXT
EXT5
Select the input source as the trigger signal.
Slope
Rising
Falling
Select the slope type of signal.
Mode
Auto
Normal
Select the type of trigger. The Normal mode is best for
most pulse width trigger applications.
Coupling
AC
DC
Noise Reject
HF Reject
LF Reject
Selects the components of the trigger signal applied to
the trigger circuitry .
Next Page
Vertical
V1
V2
Adjust the vertical window by setting two trigger levels.
Select this option and press F3 to choose V1 or V2.
When
=
<
>
Select the trigger condition.
Time 20ns to 10 .0 sec
With this option highlighted by pressing F4, turn the
multi-functional knob to set the time span.
Swap
Swap
Swap
Swap Trigger:
Trigger:
Trigger:
Trigger: A s a feature of analog oscilloscopes, it gives stable displays of signals at two
different frequencies. Mainly it uses a specific frequency to switch between two analog channels
CH1 and CH2 so that the channels will generate swap trigger signals through the trigger circuit
ry
.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Swap
Trigger
Mode
Auto
Normal
Select the type of trigger.
Channel
CH1
CH2
Push an option such as CH1, select the channel trigger type
and set the menu interface.
Below list options in submenus. Swap Trigger allows CH1 and CH2 to select different trigger
modes and to display waveforms on a same screen. That is, both channels can choose the
following four trigger modes.
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DS O5000 Series Digital Storage Oscilloscope User Manual
31
Type Edge
Slope
Rising
Falling
Coupling
AC
DC
HF Reject
LF Reject
Push F3 or F4 to select the components of the trigger signal
applied to the trigger circuitry.
Type Video
Polarity
Normal
Inverted
Standard
NTSC
PAL/SECAM
Sync
All Lines
Line Number
Odd Field
Even Field
All Fields
Select by F4, F5.
Type Pulse
Polarity
Positive
Negative
When
=
<
>
Select by F3.
Set Pulse
Width
Pulse Width
Push F4 to select. Adjust the multi-functional knob V0 to set
the pulse width.
Coupling
AC
DC
Noise Reject
HF Reject
LF Reject
Select by F5.
Type Slope
Slope
Rising
Falling
Select the slope type of signal.
Mode
Auto
Normal
Select the type of trigger. The Normal mode is best for most
pulse width trigger applications.
Coupling
AC
DC
Noise Reject
HF Reject
LF Reject
Selects the components of the trigger signal applied to the
trigger circuitry .
Next Page
Vertical
V1
V2
Adjust the vertical window by setting two trigger levels.
Select this option and press F3 to choose V1 or V2.
When = Select the trigger condition.
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DS O5000 Series Digital Storage Oscilloscope User Manual
32
<
>
Time 20ns to 10 .0 sec
Press F4 to select this option. Turn the multi-functional knob
to set the time span.
Overtime
Overtime
Overtime
Overtime Trigger:
Trigger:
Trigger:
Trigger: In Pulse Width trigger, you may sometimes be puzzled with the long time for
trigger, as you do not need a complete pulse width to trigger the oscilloscope, but want the trigger
occurs just upon the overtime point. This is called Overtime Trigger.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Type OT
Source
CH1
CH2
Select the trigger source.
Polarity
Positive
Negative
Select to trigger on positive or negative pulses.
Mode
Auto
Normal
Overtime t
Press F5 to select Overtime option and adjust V0 to set the
time.
Coupling
AC
DC
HF Reject
LF Reject
Selects the components of the trigger signal applied to the
trigger circuitry .
Holdoff:
Holdoff:
Holdoff:
Holdoff:
To
use Trigger Holdoff, push the HORIZONTAL Menu button and set the Holdoff Time
option by pressing F4. T he Trigger Holdoff function can be used to generate a stable display of
complex waveforms ( such as pulse trains ) . Holdoff is the time between when the oscilloscope
detects one trigger and when it is ready to detect another. D uring the holdoff time , t he oscilloscope
will not trigger. For a pulse train, the holdoff time can be adjusted to let the oscilloscope trigger only
on the first pulse in the train.
Trigger Level
Indicates
Trigger Points
Holdoff
Holdoff
Acquisition I nterval
Acquisition I nterval
5.5
5.5
5.5
5.5 Menu
Menu
Menu
Menu and
and
and
and Option
Option
Option
Option Buttons
Buttons
Buttons
Buttons
As shown below, these six buttons at the top of the front panel are used mainly to recall relative
background
Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
33
setup menus.
SAVE/RECALL
SAVE/RECALL
SAVE/RECALL
SAVE/RECALL :
:
:
: Displays the Save/Recall menu for setups and waveforms.
MEASURE
MEASURE
MEASURE
MEASURE :
:
:
: Displays the Measure menu.
ACQUIRE
ACQUIRE
ACQUIRE
ACQUIRE :
:
:
: Displays the Acquire menu.
UTIILITY
UTIILITY
UTIILITY
UTIILITY :
:
:
: Displays the Utility menu.
CURSOR
CURSOR
CURSOR
CURSOR :
:
:
: Displays the Cursor menu.
DISPLAY
DISPLAY
DISPLAY
DISPLAY :
:
:
: Displays the Display menu.
5.5.1
5.5.1
5.5.1
5.5.1 SAVE/RECALL
SAVE/RECALL
SAVE/RECALL
SAVE/RECALL
P ress the SAVE/RECALL button to save or recall oscilloscope setups or waveforms.
The first page shows the following menu.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Waveforms
Waveforms
Waveforms
Waveforms
Source
CH1
CH2 off
MATH off
Select a waveform display to store.
REF
RefA
RefB
Select the reference location to store or recall a waveform.
Operation
Save Save the source waveform to the selected reference location.
Ref on
Ref off
Display or remove the reference waveform on the screen.
Press Next Page
to recall the following menu.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Setups
Setups
Setups
Setups
Operation
Source
F lash memory
USB disk
Store the current setups to the USB disk or the memory of the
oscilloscope.
Memory 0 to 9
Specify the memory location in which to store the current waveform
settings or from which to recall the waveform settings. Use the V0
V0
V0
V0 knob
knob
knob
knob
to select.
Operation
Save Complete the saving operation.
Recall
Recall the oscilloscope settings stored in the location selected in the
Setup field. Push the Default Setup button to initialize the oscilloscope
background
Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
34
to a known setup.
See below for waveform menus.
The
The
The
The white
white
white
white waveforms
waveforms
waveforms
waveforms on
on
on
on the
the
the
the menu
menu
menu
menu is
is
is
is
the
the
the
the recalled
recalled
recalled
recalled RefA
RefA
RefA
RefA waveform
waveform
waveform
waveform
At
At
At
At most
most
most
most 9
9
9
9 groups
groups
groups
groups of
of
of
of
setups
setups
setups
setups can
can
can
can be
be
be
be stored
stored
stored
stored
Note:
Note:
Note:
Note: The
The
The
The oscilloscope
oscilloscope
oscilloscope
oscilloscope will
will
will
will save
save
save
save the
the
the
the current
current
current
current settings
settings
settings
settings if
if
if
if you
you
you
you wait
wait
wait
wait 5
5
5
5 seconds
seconds
seconds
seconds after
after
after
after the
the
the
the last
last
last
last
modification,
modification,
modification,
modification, and
and
and
and it
it
it
it will
will
will
will recall
recall
recall
recall these
these
these
these settings
settings
settings
settings the
the
the
the next
next
next
next time
time
time
time you
you
you
you power
power
power
power on
on
on
on the
the
the
the oscilloscope.
oscilloscope.
oscilloscope.
oscilloscope.
5.5.2
5.5.2
5.5.2
5.5.2 MEASURE
MEASURE
MEASURE
MEASURE
Push the MEASURE button to perform auto measurements. There are
11
types of measurements
and up to 8 can be displayed at a time.
Turn the V0 knob to select an unspecified option. Press V0 or F6 when the red arrow icon stops on
it. Then the following menu appears.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Source
CH1
CH2
Select the measure source.
Measurement
T
ype
Frequency Calculate the waveform frequency by measuring the first cycle.
Period Calculate the time of the first cycle.
Mean Calculate the arithmetic mean voltage over the entire record.
Pk-Pk
Calculate the absolute difference between the greatest and the
smallest peaks of the entire waveform.
Cyc RMS
Calculate the actual RMS measurement of the first complete
cycle of the waveform.
Min
Examine the waveform record of all points in the current
window and display the minimum value.
Max
Examine the waveform record of all points in the current
window and display the maximum value.
Rise Time
Measure the time between 10% and 90% of the first rising
edge of the waveform.
Fall Time
Measure the time between 90% and 10% of the first falling
edge of the waveform.
Positive Width
Measure the time between the first rising edge and the next
falling edge at the waveform 50% level.
Negative Width
Measure the time between the first falling edge and the next
rising edge at the waveform 50% level.
Off Do not take any measurement.
Use the knob V0 or the functional keys F3, F4 to select the type of measurement.
background
Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
35
The
The
The
The readouts
readouts
readouts
readouts in
in
in
in big
big
big
big font
font
font
font size
size
size
size on
on
on
on
the
the
the
the menu
menu
menu
menu are
are
are
are just
just
just
just results
results
results
results of
of
of
of the
the
the
the
corresponding
corresponding
corresponding
corresponding measurements.
measurements.
measurements.
measurements.
Taking
Taking
Taking
Taking Measurements:
Measurements:
Measurements:
Measurements: For a single waveform (or a waveform divided among multiple
waveforms), up to 8 automatic measurements can be displayed at a time. The waveform channel
must stay in an ON
(displayed) state to facilitate the measurement. The automatic measurement
can not be performed on reference or math waveforms, or in XY or Scan mode.
5.5.3
5.5.3
5.5.3
5.5.3 ACQUIRE
ACQUIRE
ACQUIRE
ACQUIRE
Push the ACQUIRE button to set the acquisition parameter.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Category
Real Time
Equ-Time
Acquire waveforms by real-time digital technique.
Rebuild waveforms by equivalent sample technique.
Mode Normal Acquire and accurately display most waveforms.
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DS O5000 Series Digital Storage Oscilloscope User Manual
36
(Real Time) Peak Detect
Average
Detect glitches and eliminate the possibility of
aliasing.
Reduce random or uncorrelated noise in signal
display. The number of averages is selectable.
Averages
(Real Time)
4
16
64
128
Select the number of averages by pressing F3 or F4.
Memory Depth
(Real Time)
4K , 40K , 512K , 1M Select the memory depth for different board models.
Normal:
Normal:
Normal:
Normal: For the oscilloscope model with the bandwidth of 100MHz, the maximum sample rate is
1GS/s. For time base with insufficient sample rate, you may use the Sine Interpolati on Algorithm to
interpolate points between sampled points to produce a complete waveform record (4K by
default).
Sample Points
Normal Acquisition Intervals
83 72 4 5 61 9 10
Normal
Normal
Normal
Normal M
M
M
M ode
ode
ode
ode A
A
A
A cquires
cquires
cquires
cquires a
a
a
a S
S
S
S ingle
ingle
ingle
ingle S
S
S
S ample
ample
ample
ample P
P
P
P oint
oint
oint
oint in
in
in
in E
E
E
E ach
ach
ach
ach I
I
I
I nterva
nterva
nterva
nterva l
l
l
l
Peak
Peak
Peak
Peak Detect:
Detect:
Detect:
Detect: Use this mode to detect glitches within 10ns and to limit the possibility of aliasing.
This mode is valid at the SEC/DIV setting of 4 µ s/div or slower. Once you set the SEC/DIV setting
to 4 µ s/div or faster, the acquisition mode will change to Normal because the sample rate is fast
enough that Peak Detect is unnecessary . The oscilloscope does not display a message to tell you
that the mode has been changed to Normal.
Average:
Average:
Average:
Average: Use this mode to reduce random or uncorrelated noise in the signal to be displayed.
Acquire data in Normal mode and then average a great number of waveforms. Choose the
number of acquisitions (4, 16, 64 or 128) to average for the waveform.
Stopping
Stopping
Stopping
Stopping the
the
the
the Acquisition:
Acquisition:
Acquisition:
Acquisition: When you are running the acquisition, the waveform display is live.
Stop the acquisition (press the RUN/STOP button) to freeze the display. I n either mode, the
waveform display can be scaled or positioned by vertical and horizontal controls.
Equivalent
Equivalent
Equivalent
Equivalent Acquisition:
Acquisition:
Acquisition:
Acquisition: Just repeat the Normal acquisition. Use this mode to take a specific
observation on repeatedly displayed periodic signals.
You
can get a resolution of 40ps , i.e.
25GSa/s sample rate, which is much higher than that obtained in real-time acquisition.
The
The
The
The acquisition
acquisition
acquisition
acquisition principle
principle
principle
principle is
is
is
is as
as
as
as follows.
follows.
follows.
follows.
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
37
Input
Input
Input
Input repeated
repeated
repeated
repeated signals
signals
signals
signals
First Acquisition
Second Acquisition
Third Acquisition
Fourth Acquisition
As shown above, acquire input signals (cycle repeatable) for more than once at a slow sample rate,
arrange the sample points by the time they appear, then recover waveforms.
5.5.4
5.5.4
5.5.4
5.5.4 UTILITY
UTILITY
UTILITY
UTILITY
Push the UTILITY button to display the Utility Menu as follows.
Options
Options
Options
Options Comments
Comments
Comments
Comments
System Info Display the software and hardware versions, serial number and some other
information about the oscilloscope.
Update
Program
Insert a USB disk with upgrade program and the disk icon at the top left corner is
highlighted. Press the Update Program button and the Software Upgrade dialog
pops up. Push F6 to upgrade or push F2 to cancel.
Save
Waveform
Insert a USB disk and the disk icon at the top left corner is highlighted. Click on
this icon and you can see the waveform pause for a while, being saved.
You
can
find the saved waveform data under the Hantek_x folder in the USB disk. Here X
represents how many times you press the button. Each press generates a
corresponding folder. For example, press once and a folder Hantek_1 is
generated; press twice and two folders Hantek_1 , Hantek_2 are generated.
Self
Calibration
Press this option and the Self Calibration dialog pops up. Press F6 to perform the
self calibration. Press F4 to cancel.
Advance Buzzer and time setups
Press this button to see the dialog for buzzer and time setups. Turn the knob V0
to select buzzer or time (with a black frame). Press V0 and the black frame turn to
be red. Turn V0 again to set ON/OFF or time. Press V0 again to exit or save the
setups.
Self
Self
Self
Self Calibration:
Calibration:
Calibration:
Calibration: The self calibration routine can optimize the precision of the oscilloscope to fit
the ambient temperature.
To
maximize the precision, you should perform the self calibration once
the ambient temperature changes by 5 or more. Follow the instructions on the screen.
Tip:
Tip:
Tip:
Tip: Press
Press
Press
Press any
any
any
any menu
menu
menu
menu button
button
button
button on
on
on
on the
the
the
the front
front
front
front panel
panel
panel
panel to
to
to
to remove
remove
remove
remove the
the
the
the status
status
status
status display
display
display
display and
and
and
and enter
enter
enter
enter a
a
a
a
corresponding
corresponding
corresponding
corresponding menu.
menu.
menu.
menu.
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DS O5000 Series Digital Storage Oscilloscope User Manual
38
5.5.5
5.5.5
5.5.5
5.5.5 CURSOR
CURSOR
CURSOR
CURSOR
Push the CURSOR button to display the Cursor Menu.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Type
Off
Voltage
Time
Select a measurement cursor and display it.
Voltage measures amplitude while Time measures time and
frequency.
Source
CH1
CH2
MATH
REFA
REFB
Select a waveform to take the cursor measurement.
Use the readouts to show the measurement.
Select Cursor
S
E
S indicates Cursor 1. E indicates Cursor 2.
A
selected cursor is highlighted, which can be moved freely. Both
cursors can be selected and moved at the same time. The box
behind the cursor displays the location of the cursor.
Delta
Display the
difference
(delta)
between the
cursors.
Display the measurement in the box under this option.
Moving
Moving
Moving
Moving Cursors:
Cursors:
Cursors:
Cursors: Press the key near Select Cursor to select a cursor and turn V0 to move it.
Cursors can be moved only when the Cursor Menu is displayed.
Time Cursor
Voltage Cursor
5.5.6
5.5.6
5.5.6
5.5.6 DISPLAY
DISPLAY
DISPLAY
DISPLAY
The waveform display is affected by settings of the oscilloscope.
A
waveform can be measured
once it is captured. The different styles to display a waveform on the screen give significant
information about it.
There are two modes to display waveforms Single-window and Dual-window. Refer to Horizontal
Controls for more information.
Push the DISPLAY button and the following menu appears.
Options
Options
Options
Options Settings
Settings
Settings
Settings Comments
Comments
Comments
Comments
Type Vectors Vectors fills up the space between adjacent sample
background
Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
39
Dots points in the display; Dots only displays the sample
points.
Persist
OFF
0.2S-8S selectable
Infinite
Sets the time length to display each displayed sample
point.
Format
YT
XY
YT format shows the vertical voltage in relation to time
(horizontal scale); XY format displays a dot between
CH1 and CH2 each time when a sample is acquired,
where the voltage or current of CH1 determines the X
coordinate of the dot (horizontal) and the voltage or
current of CH2 determines the Y coordinate (vertical).
For detailed information, refer to descriptions on XY
format in the following text.
Contrast
0-15 16 ranks adjustable, with a progress bar to
display; Press F5 to select this option. Turn the
multi-functional knob to adjust.
Next Page
Grid
Dotted line
Real line
OFF
Off only displays the horizontal and vertical coordinates
at the center graticule on the screen.
Grid Intensity
0-15 16 ranks adjustable, with a progress bar to
display.
5.6
5.6
5.6
5.6 Fast
Fast
Fast
Fast Action
Action
Action
Action Buttons
Buttons
Buttons
Buttons
AUTOSET
AUTOSET
AUTOSET
AUTOSET :
:
:
: Automatically set the oscilloscope controls to generate a usable display of the input
signals . Refer to the following table for relative content.
SINGLE
SINGLE
SINGLE
SINGLE SEQ
SEQ
SEQ
SEQ :
:
:
: Acquire a single waveform and then stop the acquisition.
RUN/STOP
RUN/STOP
RUN/STOP
RUN/STOP :
:
:
: Continuously acquire waveforms or stop the acquisition.
HELP
HELP
HELP
HELP :
:
:
: Display the Help menu.
DEFAULT
DEFAULT
DEFAULT
DEFAULT SETUP
SETUP
SETUP
SETUP :
:
:
: Recall the factory setup . Refer to the following table for relative content.
Save
Save
Save
Save to
to
to
to USB
USB
USB
USB Disk:
Disk:
Disk:
Disk: Save all displays on the screen to a USB device, just like the screen capturing
function of a computer.
5.6.1
5.6.1
5.6.1
5.6.1 AUTOSET
AUTOSET
AUTOSET
AUTOSET
Autoset is one of the advantages digital oscilloscopes have. When you push the AUTOSET button,
the oscilloscope will identify the type of waveform (sine or square wave) and adjust controls
according to input signals so that it can accurately display the waveform of the input signal.
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
40
Functions
Functions
Functions
Functions Settings
Settings
Settings
Settings
Acquire M ode Adjusted to Normal or Peak Detect
Cursor Off
Display F ormat Set to YT
Display
T
ype S et to Vectors for an FFT spectrum; otherwise, unchanged
Horizontal Position Adjusted
SEC/DIV Adjusted
Trigger Coupling Adjusted to DC, Noise Reject or HF Reject
Trigger Holdoff Minimum
Trigger Level Set to 50%
Trigger Mode Auto
Trigger Source Adjusted; Autoset can not be used for the EXT TRIG signal
Trigger Slope Adjusted
Trigger Type Edge
Trigger Video Sync Adjusted
Trigger Video Standard Adjusted
Vertical Bandwidth Full
Vertical Coupling
DC (if GND was chosen before); AC for the video signal; otherwise,
unchanged
VOLTS/DIV Adjusted
The Autoset function examines all channels for signals and displays corresponding waveforms.
Autoset determines the trigger source according to the following conditions.
If multiply channels get signals, the oscilloscope will use the channel with the lowest
frequency signal as the trigger source.
If no signals are found, the oscilloscope will use the lowest-numbered channel displayed
in Autoset as the trigger source.
If no signals are found and no channels are displayed, the oscilloscope will display and
use Channel 1 as the trigger source.
Sine
Sine
Sine
Sine Wave:
Wave:
Wave:
Wave:
When you use the Autoset function and the oscilloscope determines that the signal is similar to a
sine wave, the oscilloscope displays the following options .
Sine
Sine
Sine
Sine W
W
W
W ave
ave
ave
ave O
O
O
O ptions
ptions
ptions
ptions Details
Details
Details
Details
Multi-cycle Sine
Display multiple cycles that have appropriate vertical and
horizontal scales.
Single-cycle Sine Set the horizontal scale to display about one cycle of the waveform.
FFT
Convert the input time-domain signal to its frequency components
and display the result as a graph of frequency versus amplitude
(spectrum). Since it is a math calculation, see Section 5.3.1 Math
FFT for more information.
Undo Setup Let the oscilloscope recall the previous setup.
Square
Square
Square
Square Wave
Wave
Wave
Wave or
or
or
or Pulse:
Pulse:
Pulse:
Pulse:
When you use the Autoset function and the oscilloscope determines that the signal is similar to a
square wave or pulse, the oscilloscope displays the following options .
Square
Square
Square
Square Wave
Wave
Wave
Wave Options
Options
Options
Options Details
Details
Details
Details
Multi-cycle Square
Display multiple cycles that have appropriate vertical and
horizontal scales.
Single-cycle Square Set the horizontal scale to display about one cycle of the waveform.
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
41
The oscilloscope displays Min, Mean and Positive Width automatic
measurements.
Rising Edge Display the rising edge.
Falling Edge Display the falling edge.
Undo Setup Let the oscilloscope recall the previous setup.
5.6.2
5.6.2
5.6.2
5.6.2 Help
Help
Help
Help
Push the HELP button to display the Help menu which provides topics cover ing all the menu
options and controls of the oscilloscope . For detailed information about the Help system, refer to
Section 2.2 .
5.6.3
5.6.3
5.6.3
5.6.3 Default
Default
Default
Default Setup
Setup
Setup
Setup
When you push the DEFAULT SETUP button, the oscilloscope will display the CH1 waveform and
remove all the others. When you are at the default setup, press F1 to Undo
Undo
Undo
Undo Preset
Preset
Preset
Preset . Then the
oscilloscope returns to the status before default setup. The table below gives the options, buttons
and controls that change settings at default setup.
Menu
Menu
Menu
Menu or
or
or
or System
System
System
System Option,
Option,
Option,
Option, Button
Button
Button
Button or
or
or
or Knob
Knob
Knob
Knob Default
Default
Default
Default Setting
Setting
Setting
Setting
Acquire
(Three mode options) Normal
Averages 16
Run/Stop Run
Cursor
Type Off
Source CH1
Horizontal ( amplitude ) ± 3.2 div
Vertical (time) ± 4 div
Display
Type Vectors
Persist Off
Format YT
Horizontal
Window Mode Single-window
Trigger Knob Level
Position 0.00s
SEC/DIV 2 00 μ s
Math
Operation
Source CH1-CH2
Position 0div
FFT
Vertical Scale 20dB
FFT Operation
Source CH1
Window Hanning
FFT Zoom X1
Measure
Source CH1
Type None
Trigger (Edge)
Type Edge
Source CH1
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DS O5000 Series Digital Storage Oscilloscope User Manual
42
Slope Rising
Mode Auto
Coupling DC
Level 0.00v
Trigger (Video)
Polarity Normal
Sync All lines
Standard NTSC
Trigger (Pulse)
When =
Set Pulse Width 1.00ms
Polarity Positive
Mode Auto
Coupling DC
Trigger (Slope)
Slope Rising
Mode Auto
Coupling DC
When =
Trigger (Swap)
CH1
Type Edge
Slope Rising
Mode Auto
Coupling DC
Level 0.00v
CH2
Type Edge
Slope Rising
Mode Auto
Coupling DC
Level 0.00v
Trigger (OT)
Source CH1
Polarity Positive
Mode Auto
Time 20ns
Vertical System,
All Channels
Coupling DC
Bandwidth Limit Unlimited
VOLTS/DIV Coarse
Probe Voltage
Voltage Probe Attenuation 10X
Invert Off
Position 0.00div (0.00V)
VOLTS/DIV 1.00V
The following settings do not change when you push the DEFAULT SETUP button.
Language Option
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
43
Saved Settings
Saved Reference Waveforms
Display Contrast
Calibration Data
5.7
5.7
5.7
5.7 Multi-functional
Multi-functional
Multi-functional
Multi-functional Knobs
Knobs
Knobs
Knobs and
and
and
and Buttons
Buttons
Buttons
Buttons
V0: Multi-functional knob. Under different menu options, it supports selecting menu
options ( MEASURE ), moving cursors and levels (Slope Trigger).
Press this knob to reset data (trigger holdoff, overtime of the overtime trigger and
slope trigger), select menu options and so on. Easy to operate.
F7: Push this button in single-window mode to switch between dotted line display
and cross display. Push it in dual-window mode to perform autocruise.
F0: Hide/Show
Hide/Show
Hide/Show
Hide/Show button. Push it to hide the menu options on the right side of the
screen and give a full screen display of waveforms. Push it again to show the menu
options.
F1-F5: These five buttons are all multi-functional. They are in charge of selecting
corresponding menu options on the screen in different menu modes. For example, in
the UTILITY menu, F1-F5 respectively correspond to System Info
Advance .
F6: This functional button is mainly used to turn pages and confirm a selection, such
as next page , previous page , and press F6 to confirm
appearing when you push
Self Calibration option.
5.8
5.8
5.8
5.8 Signal
Signal
Signal
Signal Connectors
Connectors
Connectors
Connectors
See the figure below to find the three signals connectors and a pair of metal electrodes at the
bottom of the oscilloscope panel.
1. CH1 , CH2 : Input connectors for waveform display, through which to connect and input the
signal to be measured .
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Basic Operation
DS O5000 Series Digital Storage Oscilloscope User Manual
44
2. EXT TRIG : Input connector for an external trigger source, though with to connect and input the
external trigger signal.
3. Probe Compensation: Voltage probe compensation output and ground , u se d to electrically
match the probe to the oscilloscope input circuit. The probe compensation ground and BNC
shields connect to earth ground and are considered to be ground terminals .
To
avoid damages,
d o not connect a voltage source to any of these ground terminals.
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Application Examples
DS O5000 Series Digital Storage Oscilloscope User Manual
45
Chapter
Chapter
Chapter
Chapter 6
6
6
6 Application
Application
Application
Application Examples
Examples
Examples
Examples
This chapter unfolds a further description on main features of the oscilloscope by giving eleven
simplified application examples for reference to help solve your own test problems.
1. Taking simple measurements
Using AUTOSET
Using the Measure menu to take auto measurements
2. Taking cursor measurements
Measuring ring frequency and ring amplitude
Measuring pulse width
Measuring rise time
3. Analyzing input signals to eliminate random noise
Observing a noisy signal
Eliminating random noise
4. Capturing a single-shot signal
5. Using X-Y mode
6. Triggering on a pulse width
7. Triggering on a video signal
Observing triggers on video fields and video lines
8. Using Slope Trigger to capture a particular slope signal
9. Using Overtime Trigger to measure a long pulse signal
10. Using math functions to analyze waveforms
11. Measuring data p ropagation d elay
6.1
6.1
6.1
6.1 Example
Example
Example
Example 1:
1:
1:
1: Taking
Taking
Taking
Taking Simple
Simple
Simple
Simple Measurements
Measurements
Measurements
Measurements
When you want to observe an unknown signal in a certain circuit without having its amplitude and
frequency parameters, you may use this function to take a fast measurement on the frequency,
period and peak-to-peak amplitude of the signal.
Follow the steps below.
1. Set the switch on the oscilloscope probe to 10X;
2. Push the CH1 MENU button and set the Probe option attenuation to 10X;
3. Connect the CH1 probe to the test point of the circuit;
4. Press the AUTOSET button.
The oscilloscope will automatically set the waveform to a best display. If you want to further
optimize the waveform display, you may manually adjust the vertical and horizontal controls until
the waveform meets your particular requirement.
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Taking
Taking
Taking
Taking Auto
Auto
Auto
Auto Measurements
Measurements
Measurements
Measurements
The oscilloscope can display most signals by automatic measurements.
To
measure such
parameters as the signal frequency, period, peak-to-peak amplitude, rise time and positive width,
follow the steps below.
1. Push the MEASURE button to see the Measure menu.
2. Turn the knob V0 to select the first unspecified
option (marked by red arrow), press V0 or F6
to enter the submenu.
3. Select CH1 for the Source option. Then repeatedly push F3 or F4 to select measure items in
the Type menu. Push the back menu to go back to the measure interface. Or turn and push
V0 to select a measure item and go back to the measure interface. The corresponding box
under the measure item shows the measurements.
4. Repeat Step 2 and Step 3. Then select other measure items. Totally 8 measure items can be
displayed.
Note:
Note:
Note:
Note: All
All
All
All readouts
readouts
readouts
readouts change
change
change
change with
with
with
with the
the
the
the measured
measured
measured
measured signals.
signals.
signals.
signals.
The figure below shows three measure items as an example. The boxes under them display the
measurements in large fonts.
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6.2
6.2
6.2
6.2 Example
Example
Example
Example 2:
2:
2:
2: Taking
Taking
Taking
Taking Cursor
Cursor
Cursor
Cursor Measurements
Measurements
Measurements
Measurements
You
can use the cursor to quickly measure the time and amplitude of a waveform.
Measuring
Measuring
Measuring
Measuring Ring
Ring
Ring
Ring Time
Time
Time
Time (
(
(
( convertible
convertible
convertible
convertible to
to
to
to Frequency)
Frequency)
Frequency)
Frequency) and
and
and
and Amplitude
Amplitude
Amplitude
Amplitude on
on
on
on Rising
Rising
Rising
Rising Edge
Edge
Edge
Edge of
of
of
of Pulse
Pulse
Pulse
Pulse
To
measure the ring time on the rising edge of the pulse, follow the steps below.
1. Push the CURSOR button to view the Cursor menu.
2. Push F1 the Type option button and select Time.
3. Push F2 or F3 the Source option button and select CH1.
4. Push F4 to select a cursor. If S is selected, turn V0 to move Cursor S on the screen; if E is
selected, turn V0 to move Cursor E; if both are selected, turn V0 to move them at the same
time.
5. Put Cursor S on the first peak of the ring.
6. Put Cursor E on the second peak of the ring.
7. At Delta displays the measured time and at Cursor S an Cursor E display the positions of
these two cursors.
8. Push the
T
ype option button and select Voltage.
9. Put Cursor S on the highest peak of the ring.
10. Put Cursor E on the lowest point of the ring. The amplitude of the ring will be displayed at
Delta.
See figures below for better understanding.
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Measuring
Measuring
Measuring
Measuring Pulse
Pulse
Pulse
Pulse Width
Width
Width
Width
To
analyze a pulse signal and to know its width, follow the steps below.
1. Push the CURSOR button to view the Cursor menu.
2. Push F1 the Type option button and select Time.
3. Push F2 or F3 the Source option button and select CH1.
4. Push F4 to select a cursor. If S is selected, turn V0 to move Cursor S on the screen; if E is
selected, turn V0 to move Cursor E; if both are selected, turn V0 to move them at the same
time.
5. Place Cursor S on the rising edge of the pulse and Cursor E on the falling edge.
6. Thus at Delta displays the measured time and at Cursor S and Cursor E displays the time
relative to the trigger.
See the figure below for better understanding.
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Measuring
Measuring
Measuring
Measuring Rise
Rise
Rise
Rise Time
Time
Time
Time of
of
of
of Pulse
Pulse
Pulse
Pulse
You
may need to measure the rise time of the pulse in many application environments, usually, to
measure the rise time between the 10% and 90% levels of the pulse waveform.
To
do so, follow
the steps below.
1. Turn the SEC/DIV knob to display the rising edge of the waveform.
2. Turn the VOLTS/DIV and VERTICAL POSITION knobs to adjust the waveform amplitude to
about 5 divisions.
3. Push the CH1 MENU button.
4. Push the VOLTS/DIV option button and select Fine. Turn the VERTICAL POSITION knob to
accurately separate the waveform into 5 divisions.
5. Turn the VERTICAL POSITION knob to center the waveform. Position the waveform baseline
to 2.5 divisions below the center graticule.
6. Press the CURSOR button.
7. Push the Type option button and select Time . Push the Source option button to select CH1.
8. Select Cursor S and turn V0 to place it at the 10% level of the waveform.
9. Select Cursor E and turn V0 to place it at the 90% level of the waveform.
10. The Delta readout in the Cursor Menu is the rise time of the pulse .
See the figure below for better understanding.
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5 divisions
6.3
6.3
6.3
6.3 Example
Example
Example
Example 3:
3:
3:
3: Analyzing
Analyzing
Analyzing
Analyzing Input
Input
Input
Input Signals
Signals
Signals
Signals to
to
to
to Eliminate
Eliminate
Eliminate
Eliminate
Random
Random
Random
Random Noise
Noise
Noise
Noise
In certain circumstances, to display a noisy signal on the oscilloscope and to get its details, you
may follow the steps below to analyze this signal.
Observing
Observing
Observing
Observing Noisy
Noisy
Noisy
Noisy Signal
Signal
Signal
Signal
1. Press the ACQUIRE button to see the Acquire menu.
2. Push the Type option button and select Real Time.
3. Push the Peak Detect option button.
4. If necessary, push the DISPLA Y button and set the Contrast option to view the noise more
clearly.
See the figure below for better understanding.
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Eliminating
Eliminating
Eliminating
Eliminating Random
Random
Random
Random Noise
Noise
Noise
Noise
1. Press the ACQUIRE button to see the Acquire menu.
2. Push the Type option button and select Real Time.
3. Push the Average option button.
4. Push the Averages option button and adjust the number of running averages to watch the
change in the waveform display.
Note:
Note:
Note:
Note: Averaging
Averaging
Averaging
Averaging reduces
reduces
reduces
reduces random
random
random
random noise
noise
noise
noise and
and
and
and let
let
let
let you
you
you
you view
view
view
view the
the
the
the signal
signal
signal
signal details
details
details
details more
more
more
more easily.
easily.
easily.
easily.
See the figure below for better understanding
6.4
6.4
6.4
6.4 Example
Example
Example
Example 4:
4:
4:
4: Capturing
Capturing
Capturing
Capturing Single-shot
Single-shot
Single-shot
Single-shot Signal
Signal
Signal
Signal
You
may refer to the following example to easily capture some aperiodic signals like pulses and
glitches.
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To
set for a single-shot acquisition, follow the steps below.
1. First, set up the oscilloscope probe and the attenuation factor of CH1.
2. Turn the vertical VOLTS/DIV and horizontal SEC/DIV knobs to a proper position for a better
examination of the signal.
3. Press the ACQUIRE button to see the Acquire menu.
4. Push the Peak Detect option button.
5. Push the TRIG MENU button and select Rising for the Slope option. Then adjust the trigger
level properly.
6. Push the SINGLE SEQ button to start the acquisition.
Using this feature can help you to capture occasional events more easily. This is an advantage of
the digital storage oscilloscope.
6.5
6.5
6.5
6.5 Example
Example
Example
Example 5:
5:
5:
5: Using
Using
Using
Using X-Y
X-Y
X-Y
X-Y Mode
Mode
Mode
Mode
Viewing
Viewing
Viewing
Viewing Phase
Phase
Phase
Phase Differences
Differences
Differences
Differences between
between
between
between Two
Two
Two
Two Channel
Channel
Channel
Channel Signals
Signals
Signals
Signals
For example, you need to measure the change in a phase across a circuit network.
Connect the oscilloscope with circuitry and view the input and output of the circuit in XY mode.
Follow the steps below.
1. First, prepare two oscilloscope probes and set the switches to 10X on both probes.
2. Push the CH1 MENU button and set the Probe option attenuation to 10X; push the CH2
MENU button and set the Probe option attenuation to 10X.
3. Connect the CH 1 probe to the input of the network, and connect the CH 2 probe to the output.
4. Push the AUTOSET button.
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5. Turn the VOLTS/DIV knobs to display approximately the same amplitude signals on each
channel.
6. Push the DISPLAY button to see the Display menu.
7. Push the Format option button and select
XY.
8. Now the oscilloscope displays a Lissajous pattern to characterize the input and output of the
circuit.
9. Turn the VOLTS/DIV and VERTICAL POSITION knobs to properly scale the waveform
display.
10. Use the Lissajous's oscillographic method to observe and calculate the phase differences
following the formula below.
As sin
sin
sin
sin θ
θ
θ
θ =A/B
=A/B
=A/B
=A/B or
or
or
or C/D
C/D
C/D
C/D , in which θ is the phase difference angle between channels and A , B , C , D
represent what shown in the figure below, you can get the value of the phase difference angle by
the formula: θ
θ
θ
θ =
=
=
= ±
±
±
± arcsin(A/B)
arcsin(A/B)
arcsin(A/B)
arcsin(A/B) or
or
or
or ±
±
±
± arcsin(C/D)
arcsin(C/D)
arcsin(C/D)
arcsin(C/D) .
If the principal axes of the ellipse are in the first and third quadrants, the phase difference angle
should be in the first and fourth quadrants, i.e. within ( 0~ π /2 ) or ( 3 π /2~2 π ). If the principal axes of
the ellipse are in the second and fourth quadrants, the phase difference angle should be in the
second and third quadrants, i.e. within ( π /2~ π ) or ( π -3 π /2 ). See the figure below for better
understanding.
A
B
C
D
Signal H orizontal
C entering
6.6
6.6
6.6
6.6 Example
Example
Example
Example 6:
6:
6:
6: Triggering
Triggering
Triggering
Triggering on
on
on
on Pulse
Pulse
Pulse
Pulse Width
Width
Width
Width
Triggering
Triggering
Triggering
Triggering on
on
on
on a
a
a
a Specific
Specific
Specific
Specific Pulse
Pulse
Pulse
Pulse Width
Width
Width
Width
While testing the pulse width of a signal in a circuit, you may need to verify the pulse width is
consistent with the theoretic value. Or even if the edge triggering shows that your signal has the
same pulse width with the specific signal, you still doubt about the result. Then you can follow the
steps below.
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1. Set the Probe option attenuation to 10X.
2. Push the AUTOSET button to trigger a stable waveform display.
3. Push the Single Cycle option button in the Autoset menu and read out the signal pulse width.
4. Push the TRIG MENU button.
5. Push F1 to select Pulse for the Type option; push F2 to select CH1 for the Source option; turn
the TRIGGER LEVEL knob to set the trigger level at the bottom of the signal.
6. Push F6 to enter the next page. Select the When option button and Push F4 to select = .
7. Push the Set Pulse Width option button. Turn V0 to set the pulse width to the value read out in
Step 3.
8. Turn the TRIGGER LEVEL knob to set the pulse width to the value read out in Step 3.
9. Push the More option button and select Normal for the Mode option. Once t riggering on
normal pulses , the oscilloscope can give a stable waveform display.
10. If the When option is set to > , < or and there appear any aberrant pulses that meet the
specified condition, the oscilloscope will trigger. For example, the signal contains such
aberrant pulses as shown below, you may select ‘≠’ or <
to trigger on the pulse.
As shown in the above figure, you can get a stable waveform display if inputting a square wave at
the frequency of 1KHz , with pulse width set to 500 μ s .
6.7
6.7
6.7
6.7 Example
Example
Example
Example 7:
7:
7:
7: Triggering
Triggering
Triggering
Triggering on
on
on
on Video
Video
Video
Video Signal
Signal
Signal
Signal
Assume that you are monitoring the video signals of a television to see if they are input normally,
and the video signal is of an NTSC system.
You
can get a stable display by using the video trigger.
Triggering
Triggering
Triggering
Triggering on
on
on
on Video
Video
Video
Video Fields
Fields
Fields
Fields
To
trigger on the video fields, follow the steps below.
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1. Push the TRIG MENU button to see the Trigger menu.
2. Push F1 to select Video for the Type option.
3. Push the Source option button to select CH1; push the Polarity option button to select Normal;
push the Standard option button to select NTSC.
4. Push the Sync option button to select Odd Field, Even Field or All Fields.
5. Turn the Trigger Level knob to adjust the trigger level and stabilize video signals.
6. Turn the horizontal SEC/DIV and the Vertical Position knobs to display on the screen a
complete video signal triggering on a video field.
The figure below shows a stable signal triggering on a video field.
Triggering
Triggering
Triggering
Triggering on
on
on
on Video
Video
Video
Video Lines
Lines
Lines
Lines
To
trigger on the video lines, follow the steps below.
1. Push the TRIG MENU button to see the Trigger menu.
2. Push F1 to select Video for the Type option.
3. Push the Source option button to select CH1; push the Polarity option button to select Normal;
push the Standard option button to select NTSC; push the Sync option button to select Line
Number.
4. Turn the Trigger Level knob to adjust the trigger level and stabilize video signals.
5. Turn V0 to adjust the line number ( NTSC : 0-525 lines).
6. Turn the horizontal SEC/DIV and the vertical VOLTS/DIV knobs to display on the screen a
complete video signal triggering on a video line. See the figure below.
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6.8
6.8
6.8
6.8 Example
Example
Example
Example 8:
8:
8:
8: Using
Using
Using
Using Slope
Slope
Slope
Slope Trigger
Trigger
Trigger
Trigger to
to
to
to Capture
Capture
Capture
Capture Particular
Particular
Particular
Particular
Slope
Slope
Slope
Slope Signal
Signal
Signal
Signal
In many occasions, we are not only concerned about the edge of the signal, but also want to know
the rise and fall times of the signal.
To
better observe this kind of signals, we bring in the slope
trigger. Follow the steps below.
1. Push the TRIG MENU button to see the Trigger menu.
2. Push F1 to select Slope for the Type option.
3. Push the Source option button to select CH1; push the Slope option button to select Rising;
push the Mode option button to select Auto; push the Coupling option button to select DC.
4. Click the Next Page
button and select Vertical. Turn the V0 knob to adjust V1 and V2 to
proper locations. Select the When option button and set it to = .
5. Select Time
and turn V0 to adjust the time until you get a stable display of waveforms. See
the figure below.
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6.9
6.9
6.9
6.9 Example
Example
Example
Example 9:
9:
9:
9: Using
Using
Using
Using Overtime
Overtime
Overtime
Overtime Trigger
Trigger
Trigger
Trigger to
to
to
to Measure
Measure
Measure
Measure Long
Long
Long
Long
Pulse
Pulse
Pulse
Pulse Signal
Signal
Signal
Signal
It is not easy to observe some part of a long pulse signal by using the edge or pulse width trigger.
In such case, you can use the overtime trigger by following steps.
1. Push the TRIG MENU button to see the Trigger menu.
2. Push F1 to select OT for the Type option; push the Polarity option button to select Normal;
push the Mode option button to select Auto; push the Coupling option button to select DC.
3. Turn the Trigger Level knob to adjust the trigger level and stabilize video signals.
4. Turn V0 to adjust the line number ( NTSC : 0-525 lines).
5. Turn the horizontal SEC/DIV and the vertical VOLTS/DIV knobs to display on the screen a
complete video signal triggering on a video line. See the figure below.
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58
Note:
Note:
Note:
Note: The
The
The
The difference
difference
difference
difference between
between
between
between the
the
the
the overtime
overtime
overtime
overtime and
and
and
and the
the
the
the delay
delay
delay
delay triggers
triggers
triggers
triggers is
is
is
is that
that
that
that the
the
the
the overtime
overtime
overtime
overtime
trigger
trigger
trigger
trigger can
can
can
can identify
identify
identify
identify the
the
the
the pulse
pulse
pulse
pulse you
you
you
you need
need
need
need according
according
according
according to
to
to
to your
your
your
your set
set
set
set time
time
time
time and
and
and
and trigger
trigger
trigger
trigger on
on
on
on any
any
any
any point
point
point
point
of
of
of
of the
the
the
the pulse.
pulse.
pulse.
pulse. In
In
In
In the
the
the
the other
other
other
other word,
word,
word,
word, the
the
the
the overtime
overtime
overtime
overtime trigger
trigger
trigger
trigger occurs
occurs
occurs
occurs based
based
based
based on
on
on
on pulse
pulse
pulse
pulse identification.
identification.
identification.
identification. It
It
It
It
is
is
is
is similar
similar
similar
similar to
to
to
to the
the
the
the >
>
>
> mode
mode
mode
mode of
of
of
of the
the
the
the pulse
pulse
pulse
pulse width
width
width
width trigger,
trigger,
trigger,
trigger, but
but
but
but not
not
not
not the
the
the
the same.
same.
same.
same.
6.10
6.10
6.10
6.10 Example
Example
Example
Example 10:
10:
10:
10: Using
Using
Using
Using Math
Math
Math
Math Functions
Functions
Functions
Functions to
to
to
to Analyze
Analyze
Analyze
Analyze
Waveforms
Waveforms
Waveforms
Waveforms
Using math functions to analyze input waveforms is another advantage of the digital oscilloscope.
For example, you want to get the instantaneous difference between two channel waveforms. By
us ing the math function of the oscilloscope , you can get a better representation of the waveform
on the screen.
To
observe this signal, follow the steps below.
1. S e t the Probe option attenuation to 10X.
2. Open CH1 and CH2 at the same time, both with the attenuation of 10X.
3. Push the AUTOSET button to trigger a stable waveform.
4. Push the MATH MENU button to see the Math menu.
5. Push the Operation option button and select CH1+CH2 .
6. Turn the horizontal SEC/DIV and the vertical VOLTS/DIV knobs to properly scale the
waveform for easy check.
In addition, the oscilloscope also supports the - and FFT functions. For a detailed analysis on FFT,
refer to Chapter 5.3.1 Math FFT .
Note:
Note:
Note:
Note: You
You
You
You should
should
should
should compensate
compensate
compensate
compensate both
both
both
both probes
probes
probes
probes before
before
before
before performing
performing
performing
performing the
the
the
the math
math
math
math operation;
operation;
operation;
operation;
otherwise,
otherwise,
otherwise,
otherwise, d
d
d
d ifferences
ifferences
ifferences
ifferences in
in
in
in probe
probe
probe
probe compensation
compensation
compensation
compensation will
will
will
will appear
appear
appear
appear as
as
as
as errors
errors
errors
errors in
in
in
in the
the
the
the differential
differential
differential
differential
signal.
signal.
signal.
signal.
As illustrated in the above figure, input a 1KHz sine wave from CH1 and a 1KHz square wave from
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CH2.
Follow the above steps to set up the Math menu, and observe the subtracted waveform as shown
in the figure below.
Those in pink are added waveforms.
6.11
6.11
6.11
6.11 Example
Example
Example
Example 11:
11:
11:
11: Measuring
Measuring
Measuring
Measuring Data
Data
Data
Data Propagation
Propagation
Propagation
Propagation Delay
Delay
Delay
Delay
When you doubt that there appear instabilities in a serial data propagation control circuit, you can
set the oscilloscope to measure the propagation delay between the enable signal and the transfer
data.
To
set the propagation delay measurement, follow the steps below.
1. Connect two oscilloscope probes respectively to the CS (chip-select) pin and the
DATA
pin on
the chip.
2. Set the Probe option attenuation to 10X for both probes.
3. Open CH1 and CH2 at the same time, both with the attenuation of 10X.
4. Push the AUTOSET button to trigger a stable waveform display.
5. Adjust the horizontal and vertical controls to optimize the waveform display.
6. Push the CURSOR button to view the Cursor menu.
7. Push the Type option button and select Time.
8. Select Cursor S and turn V0 to place it on the active edge of the enable signal.
9. Select Cursor E and turn V0 to place it on the data output transition (See the figure below).
10. Read the data propagation delay in the Delta readout.
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CH2
C SDATA
CH1
CS
DATA
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61
Chapter
Chapter
Chapter
Chapter 7
7
7
7 Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
7.1
7.1
7.1
7.1 Problem
Problem
Problem
Problem Settlement
Settlement
Settlement
Settlement
1.
1.
1.
1. If
If
If
If the
the
the
the oscilloscope
oscilloscope
oscilloscope
oscilloscope does
does
does
does not
not
not
not start
start
start
start up
up
up
up at
at
at
at power
power
power
power on,
on,
on,
on, follow
follow
follow
follow these
these
these
these steps:
steps:
steps:
steps:
1 Check the power cord to verify it has been connected properly;
2 Check the power on/off button to ensure it has been pushed;
3 Then restart the oscilloscope.
Contact your local HANTEK distributor or directly keep touch with HANTEK Technical Support
department if the oscilloscope still can not be turned on normally.
2.
2.
2.
2. If
If
If
If there
there
there
there is
is
is
is no
no
no
no display
display
display
display of
of
of
of waveforms
waveforms
waveforms
waveforms on
on
on
on the
the
the
the screen
screen
screen
screen when
when
when
when the
the
the
the oscilloscope
oscilloscope
oscilloscope
oscilloscope is
is
is
is turned
turned
turned
turned on,
on,
on,
on,
follow
follow
follow
follow these
these
these
these steps:
steps:
steps:
steps:
1 Check the probe to assure its proper connection to the input BNC;
2 Check the channel switch (such as CH1, CH2 menu buttons) to make sure it has been turned
on;
3 Check the input signal to verify it has been connected to the probe correctly;
4 Affirm that all measured circuits have signals to output;
5 Turn up the magnitude for DC signals with large magnitude;
6 In addition, you may press the Auto Measure button to perform an automatic detection of
signals at first.
Contact HANTEK Technical Support department in time if there is still no display of waveforms.
3.
3.
3.
3. If
If
If
If the
the
the
the waveform
waveform
waveform
waveform of
of
of
of the
the
the
the input
input
input
input signal
signal
signal
signal is
is
is
is distorted
distorted
distorted
distorted seriously,
seriously,
seriously,
seriously, follow
follow
follow
follow these
these
these
these steps:
steps:
steps:
steps:
1 Check the probe to assure its proper connection to the channel BNC;
2 Check the probe to assure its good connection to the measured object;
3 Check the probe to verify it has been well calibrated. Otherwise, refer to the content about
calibration described in this manual.
4.
4.
4.
4. If
If
If
If the
the
the
the waveform
waveform
waveform
waveform is
is
is
is rolling
rolling
rolling
rolling continuously
continuously
continuously
continuously on
on
on
on the
the
the
the screen
screen
screen
screen but
but
but
but can
can
can
can not
not
not
not be
be
be
be triggered,
triggered,
triggered,
triggered, follow
follow
follow
follow
these
these
these
these steps:
steps:
steps:
steps:
1 Check the trigger source to make sure it consistent with the input channel;
2 Check the trigger level to assure its correct adjustment.
You
may push the TRIGGER LEVEL
knob or press the SET TO 50% button to reset the trigger level back to the center of the signal;
3 Check the trigger mode to confirm it is a right choice for the input signal. The default trigger
mode is edge trigger. However, it is not suitable for all kinds of input signals.
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Specifications
DS O5000 Series Digital Storage Oscilloscope User Manual
62
Chapter
Chapter
Chapter
Chapter 8
8
8
8 Specifications
Specifications
Specifications
Specifications
8.1
8.1
8.1
8.1 Technical
Technical
Technical
Technical Specifications
Specifications
Specifications
Specifications
All specifications herein mentioned apply to the DSO5000 series oscilloscopes . Before checking
an oscilloscope from HANTEK to see if it complie s with these specifications, make sure it meet s
the following conditions:
The oscilloscope must have been operating continuously for twenty minutes under the
specified operating temperature.
T he Do Self Cal operation must be performed through the Utility menu if the operating
temperature changes by more than 5 .
The oscilloscope must be within the factory calibration interval .
All specifications are guaranteed unless noted typical .
Oscilloscope
Oscilloscope
Oscilloscope
Oscilloscope Specifications
Specifications
Specifications
Specifications
Horizontal
Horizontal
Horizontal
Horizontal
Sample Rate Range 50 0MS/s--1GS/s
Waveform Interpolation ( sin x ) /x
Record Length
Maximum 1M samples per s ingle - channel; m aximum 512K
samples per d ual-channel (4K,16K,40K optional)
SEC/DIV Range
DS O5 062 N
DS O5 102 N
DS O5 102 M
DS O5 202 M
4 ns/ div to 4 0s/ div, in a 2 , 4, 8
sequence
2 ns/ div to 4 0s/ div, in a 2 , 4, 8
sequence
Sample Rate and
Delay Time Accuracy
± 50ppm over any 1ms time interval
Delta Time Measurement
Accuracy
( Full Bandwidth)
Single-shot , Normal mode
± ( 1 sample interval +100ppm × reading + 0.6ns )
>16 averages
± ( 1 sample interval + 100ppm × reading + 0.4ns )
Sample interval = s/div ÷ 2 0 0
Position Range
DS O5 062 N DS O5 102 N
DS O5 102 M
4ns/ div to 8ns/ div (- 8 div × s/ div) to 20ms
20ns/ div to 80 μ s/ div (- 8 div × s/ div) to 40ms
200 μ s/ div to 40s/ div (- 8 div × s/ div) to 400s
DS O5 202 M
2ns/ div to 10ns/ div (- 4 div × s/ div) to 20ms
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Specifications
DS O5000 Series Digital Storage Oscilloscope User Manual
63
Vertical
Vertical
Vertical
Vertical
A/D C onverter
8-bit resolution,
each channel sampled simultaneously
VOLTS/DIV Range 2mV/div to 5V/div at input BNC
Position Range
2mV/div to 200mV/div, ± 2V
>200mV/div to 5V/div, ± 50V
Analog Bandwidth in
Normal and Average
modes at BNC or with probe, DC
Coupled
2mV/ div to 20mV/ div, ± 400mV
50mV/ div to 200mV/ div, ± 2V
500mV/ div to 2V/ div, ± 40V
5V/ div, ± 50V
Selectable Analog Bandwidth Limit,
typical
20MHz
Low Frequency Response (-3db) 10 Hz at BNC
Rise Time at BNC , typical
DS O5 062 N DS O510 2 N DS O510 2 M DS O52 02 M
<5.8ns 3.5ns 3.5ns <1.8ns
DC Gain Accuracy
± 3% for Normal or Average acquisition mode, 5V/div to
10mV/div
± 4% for Normal or Average acquisition mode, 5mV/div to
2mV/div
DC Measurement Accuracy,
Average Acquisition Mode
Measurement Type : Average of 16 waveforms with
vertical position at zero
Accuracy: ± (3% × reading + 0.1div + 1mV) when
10mV/div or greater is selected
Measurement Type : Average of 16 waveforms with
vertical position not at zero
Accuracy: ± [3% × ( reading + vertical position ) + 1% of
vertical position + 0.2 div]
Add 2mV for settings from 2mV/div to 200mV/div ; a dd
50mV for settings from 200mV/div to 5V/div
Volts Measurement Repeatability ,
Average Acquisition Mode
Delta volts between any two averages of 16 waveforms
acquired under same set up and ambient conditions
Note:
Note:
Note:
Note: Bandwidth
Bandwidth
Bandwidth
Bandwidth reduced
reduced
reduced
reduced to
to
to
to 6MHz
6MHz
6MHz
6MHz when
when
when
when using
using
using
using a
a
a
a 1X
1X
1X
1X probe.
probe.
probe.
probe.
Trigger
Trigger
Trigger
Trigger
Trigger Sensitivity
( Edge Trigger Type )
Coupling Sensitivity
DC Source
DS O5 062 N
DS O5 102 N
DS O5 102 M
DS O5 202 M
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Specifications
DS O5000 Series Digital Storage Oscilloscope User Manual
64
CH1
CH2
1div from DC to
10MHz;
1.5div from 10MHz to
Full
1.5div from 10MHz
to 100MHz ;
2div from 100MHz to
Full
EXT 200mV from DC to
100MHz
200mV from DC to
100MHz ; 350mV
from 100MHz to
20 0MHz
EXT/5 1V from DC to
100MHz
1V from DC to
100MHz ;
1.75V from 100MHz
to 20 0MHz
AC A ttenuates signals below 10 Hz
HF Reject A ttenuates signals above 80k Hz
L F Reject
Same as the DC-coupled limits for frequencies above
150 kHz ; attenuates signals below 150 kHz
Trigger Level Range
Source Range
CH1 , CH2 ± 8 divisions from center of screen
EXT ± 1.2V
EXT /5 ± 6V
Trigger Level
Accuracy, t ypical
( Accurac y is for
signals having rise
and fall times 20ns )
Source Accuracy
CH1 CH2
0.2div × volts/div within ± 4 divisions from center of
screen
EXT ± ( 6% of setting + 40mV )
EXT/5 ± ( 6% of setting + 200mV )
S et L evel to 50% ,
typical
Operates with input signals 50Hz
Note:
Note:
Note:
Note: Bandwidth
Bandwidth
Bandwidth
Bandwidth reduced
reduced
reduced
reduced to
to
to
to 6MHz
6MHz
6MHz
6MHz when
when
when
when using
using
using
using a
a
a
a 1X
1X
1X
1X probe.
probe.
probe.
probe.
Video Trigger Type Source Range
CH1 , CH2
Peak-to-peak amplitude of 2
divisions
EXT 400mV
EXT/5 2V
Signal Formats and
Field Rates, Video
Trigger Type
Supports NTSC , PAL and SECAM
broadcast systems for any field or
any line
Holdoff Range 100ns to 10s
Pulse Width Trigger
Pulse Width Trigger
Mode
Trigger when < (Less than), > (Greater than), = (Equal), or (Not Equal);
Positive pulse or Negative pulse
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Specifications
DS O5000 Series Digital Storage Oscilloscope User Manual
65
Pulse Width Trigger
Point
Equal: The oscilloscope triggers when the trailing edge of the pulse
crosses the trigger level.
Not Equal: If the pulse is narrower than the specified width, the trigger
point is the trailing edge. Otherwise, the oscilloscope triggers when a
pulse continues longer than the time specified as the Pulse Width.
Less than: The trigger point is the trailing edge.
Greater than (also called overtime trigger): The oscilloscope triggers
when a pulse continues longer than the time specified as the Pulse Width.
Pulse Width Range Selectable from 20ns to 10s
Slope Trigger
Slope Trigger Mode
Trigger when < (Less than), > (Greater than), = (Equal), or (Not Equal);
Positive slope or Negative slope
Slope Trigger Point
Equal: The oscilloscope triggers when the waveform slope is equal to the
set slope.
Not Equal: The oscilloscope triggers when the waveform slope is not
equal to the set slope.
Less than: The oscilloscope triggers when the waveform slope is less
than the set slope .
Greater than: The oscilloscope triggers when the waveform slope is
greater than the set slope .
Time Range Selectable from 20ns to 10s
Overtime Trigger The leading edge: Rising edge or Falling edge; Time Setting: 20-10s
Swap Trigger
CH1 Internal Trigger: Edge, Pulse Width, Video, Slope
CH2 Internal Trigger: Edge, Pulse Width, Video, Slope
Trigger Frequency
Counter
Readout Resolution 6 digits
Accuracy (typical) ± 30ppm (including all frequency reference errors and ± 1 count errors)
Frequency Range AC coupled, from 4Hz minimum to rated bandwidth
Signal Source
Pulse Width or Edge Trigger modes: all available trigger sources
The Frequency Counter measures trigger source at all times, including
when the oscilloscope acquisition pauses due to changes in the run
status, or acquisition of a single shot event has completed.
Pulse Width Trigger mode: The oscilloscope counts pulses of significant
magnitude inside the 1 s measurement window that qualify as triggerable
events, such as narrow pulses in a PWM pulse train if set to < mode and
the width is set to a relatively small time.
Edge Trigger mode: The oscilloscope counts all edges of sufficient
magnitude and correct polarity.
Video Trigger mode: The Frequency Counter does not work .
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Specifications
DS O5000 Series Digital Storage Oscilloscope User Manual
66
Acquisition
Acquisition
Acquisition
Acquisition
Acquisition M odes Normal, Peak Detect, and Average
Acquisition Rate,
typical
Up to 2000 waveforms per second per channel (Normal acquisition mode,
no measurement)
Single Sequence Acquisition Mode Acquisition Stop Time
Normal, Peak Detect
Upon s ingle acquisition on all
channels
simultaneously
Average
After N acquisitions on all channels
simultaneously, N can be set to 4, 8,
16, 32, 64 or 128
Inputs
Inputs
Inputs
Inputs
Inputs
Input Coupling DC , AC or GND
Input Impedance,
DC coupled
1M Ω± 2% in parallel with 20pF ± 3pF
Probe Attenuation 1X , 10X
Supported Probe
Attenuation Factors
1X , 10X , 100X , 1000X
Maximum Input
Voltage
Overvoltage Category Maximum Voltage
CAT I and CAT II 300V
RMS
(10 × ) , Installation Category
CAT III 150V
RMS
(1 × )
Installation Category II : derate at 20dB/decade above 100kHz to 13V peak
AC at 3MHz* and above. For non-sinusoidal waveforms, peak value must
be less than 450V. Excursion above 300V should be of less than 100ms
duration. RMS signal level including all DC component s removed through
AC coupling must be limited to 300V. If these values are exceeded, damage
to the oscilloscope may occur .
Measurements
Measurements
Measurements
Measurements
Cursors
Voltage difference between cursors : V
Time difference between cursors: T
Reciprocal of T in Hertz (1/ Δ T)
Automatic
Measurements
Frequency, Period, Mean, Peak-to-peak, Cycle RMS, Minimum, Maximum,
Rise Time, Fall Time, Positive Width, Negative Width
General
General
General
General Specifications
Specifications
Specifications
Specifications
Display
Display Type 7 inch 64K color TFT ( diagonal liquid crystal )
Display Resolution 80 0 horizontal by 48 0 vertical pixels
Display Contrast Adjustable ( 16 gears ) with the progress bar
Probe Compensator Output
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Specifications
DS O5000 Series Digital Storage Oscilloscope User Manual
67
Output Voltage,
typical
About 5V pp into 1M Ω load
Frequency, typical 1kHz
Power Supply
Supply Voltage
100-120VAC
RMS
( ± 10%), 45Hz to 440Hz , CAT
120-240VAC
RMS
( ± 10%), 45Hz to 66Hz , CAT
Power Consumption <30W
Fuse 2A , T rating, 250V
Environment al
Temperature
Operating: 32 to 122 ( 0 to 50 )
Nonoperating: -40 to 159.8 ( -40 to +71 )
Cooling Method Convection
Humidity
+104 or below ( +40 or below): 90% relative humidity
106 to 122 ( +41 to 50 ): 60% relative humidity
Altitude Operating and Nonoperating 3 , 000m ( 10 , 000 feet)
Random Vibration
0.31 g
RMS
from 50Hz to 500Hz , 10
minutes on each axis
Nonoperating
2.46g
RMS
from 5Hz to 500Hz , 10
minutes on each axis
Mechanical Shock Operating 50g , 11ms , half sine
Mechanical
Size
Length 313mm
Height 142mm
Depth 108mm
Weight
exclusive of packing and
accessories
2.08Kg
Packing
Length 3 85 mm
Width 200 mm
Height 2 4 5mm
Gross Weight inclusive of all accessories 2.5 Kg
8.2
8.2
8.2
8.2 Accessories
Accessories
Accessories
Accessories
All the following accessories are available by contacting your local HANTEK distributor .
Standard
Standard
Standard
Standard Accessories
Accessories
Accessories
Accessories
Sketch
Sketch
Sketch
Sketch Description
Description
Description
Description
X1 , X10 two p assive p robes. The passive probes have a 6MHz
bandwidth ( rated 100Vrms CAT III) when the switch is in the X1
position, and a maximum bandwidth ( rated 300Vrms CAT II) when
the switch is in the X10 position. Each probe consists of all
necessary fittings.
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Specifications
DS O5000 Series Digital Storage Oscilloscope User Manual
68
A
quick guide of the DSO5 000 s eries o scilloscope s . It gives a
description mainly on functions and operating basis of these
oscilloscopes.
A
p ower c ord special for this product . In addition to the power cord
shipped with your instrument, you may purchase another one
c ertified for t he country of u se .
A
warranty card. When there appears something wrong with the
product, it can be returned for repair under warranty .
Optional
Optional
Optional
Optional Accessories
Accessories
Accessories
Accessories
Sketch
Sketch
Sketch
Sketch Description
Description
Description
Description
A
USB A-B line, used to connect external devices with USB-B
interface like a printer or to establish communications between PC
and the oscilloscope.
A
software installation CD. It contains the user manual of DS O5 000 ,
giving particular descriptions on the DS O5 000 series oscilloscopes.
background
Services and Support
DS O5000 Series Digital Storage Oscilloscope User Manual
69
Chapter
Chapter
Chapter
Chapter 9
9
9
9 Services
Services
Services
Services and
and
and
and Support
Support
Support
Support
Thank you for choosing HANTEK . Please contact us through the following ways should you have
any inquiry regarding our products. We shall do our best to help you.
1 Contact your local HANTEK distributor;
2 Contact your local HANTEK field office;
3 Contact HANTEK headquarters in China.
Headquarters
Headquarters
Headquarters
Headquarters
HANTEK Technologies Co., Ltd
http : //www. hantek . net
Address 5F.NO. 177 zhuzhou road(huite industry city),QingDao,China
266000
Tel:
+86- 5 32 -88 703687 / 88703697
Fax: +86- 5 32 -88 705691
Email : service@hantek.com.cn
Technical
Technical
Technical
Technical Support
Support
Support
Support
Tel:
+86- 5 32 -88 703687 (ext: 606)
Email : support @ hantek.com.cn
Marketing
Marketing
Marketing
Marketing Department
Department
Department
Department
Tel:
+86- 5 32 -88 703687 (ext: 607)
Email : david@ hantek.com.cn
Sales
Sales
Sales
Sales Department
Department
Department
Department
Tel:
+86- 5 32 -88 703687 (ext: 605)
Email sales@Hantekins.com
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General Care and Cleaning
DS O5000 Series Digital Storage Oscilloscope User Manual
70
Chapter
Chapter
Chapter
Chapter 10
10
10
10 General
General
General
General Care
Care
Care
Care and
and
and
and Cleaning
Cleaning
Cleaning
Cleaning
10.1
10.1
10.1
10.1 General
General
General
General Care
Care
Care
Care
Do not put or leave the device in a place where the LCD display will be exposed to direct sunlight
for long periods of time.
Note:
To
avoid damage to the oscilloscope or probes, do not expose them to sprays, liquids, or
solvents.
10.2
10.2
10.2
10.2 Cleaning
Cleaning
Cleaning
Cleaning
Examine the oscilloscope and probes as often as operating conditions require.
To
clean the
exterior surface, perform the following steps:
1 Use a lint-free cloth to remove floating dust on the outside of the oscilloscope and probes.
Take care to avoid scratching the glabrous display filter.
2 Use a soft cloth dampened with water to clean the oscilloscope. For more efficient cleaning,
you may use an aqueous solution of 75% isopropyl alcohol.
Note:
Note:
Note:
Note: To
To
To
To avoid
avoid
avoid
avoid damage
damage
damage
damage to
to
to
to the
the
the
the surface
surface
surface
surface of
of
of
of the
the
the
the oscilloscope
oscilloscope
oscilloscope
oscilloscope or
or
or
or probes,
probes,
probes,
probes, do
do
do
do not
not
not
not use
use
use
use any
any
any
any
corrosive
corrosive
corrosive
corrosive or
or
or
or chemical
chemical
chemical
chemical cleaning
cleaning
cleaning
cleaning agents.
agents.
agents.
agents.
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Harmful and Poisonous Substances or Elements
DS O5000 Series Digital Storage Oscilloscope User Manual
71
Appendix
Appendix
Appendix
Appendix A
A
A
A H
H
H
H armful
armful
armful
armful and
and
and
and Poisonous
Poisonous
Poisonous
Poisonous
S
S
S
S ubstances
ubstances
ubstances
ubstances or
or
or
or Elements
Elements
Elements
Elements
Harmful and poisonous substances or elements
1
Component
2
Pb Hg Cd Cr(Vi) PBB PBDE
Shell and Chassis X 0 0 X 0 0
Display Module X X 0 0 0 0
Circuit B oard X 0 0 X 0 0
P ower S upply X 0 0 X 0 0
Electric Wire and Cable Assembly X 0 0 0 0 0
Connector X 0 0 X 0 0
F astener and Installed Hardware X 0 X X 0 0
Other Accessories (including probes) X 0 0 X 0 0
Others 0 0 0 0 0 0
X
means that at least the content of this poisonous and harmful substance in a homogeneous
material of this component exceeds the limit specified in the SJ/T 11363-2006 standard.
0
indicates that the content of this poisonous and harmful substance in all homogeneous
material s of this component is refrained under the limit stated in the SJ/T 11363-2006 standard.
This component list contains components approved in the file
Management Measures
.
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Harmful and Poisonous Substances or Elements
DS O5000 Series Digital Storage Oscilloscope User Manual
72
Appendix
Appendix
Appendix
Appendix B
B
B
B Index
Index
Index
Index
Search by alphabetical order
A
A
A
A
AC coupling 66
ACQUIRE button 35
Acquisition mode
11
Amplitude cursor 12
Application examples 45
Automatic measurement 1 2
AUTOSET 3
AUTOSET button 6
Autoset function 3
Average
11
B
B
B
B
Bandwidth limit 16
C
C
C
C
Capturing single-shot signal 51
CH1 MENU button 6
CH2 MENU button 6
Cleaning 70
Coarse, Fine 20
Connector 5
Contrast 3 9
Coupling 9
CURSOR 12
CURSOR button 12
Cyc RMS 3 4
D
D
D
D
DISPLAY button 3 8
Dual-window 17
E
E
E
E
Edge trigger 10
EXT TRIG 28
F
F
F
F
Factory setup 9
FFT aliasing 22
FFT Window 21
FFT Zoom 21
Field synchronization 16
Fine resolution 20
Force trigger 27
Frequency counter 65
Functional check 5
Fundamental frequency 21
G
G
G
G
Ground coupling 20
H
H
H
H
Hanning 21
HELP button 4
HELP SCROLL LED 4
Help system 3
Holdoff 1 8
Horizontal controls 17
HORIZONTAL POSITION knob 4
Hyperlinks 3
I
I
I
I
Intensity 39
L
L
L
L
Language 4 3
Level 9
Lissajous pattern 16
M
M
M
M
Main time base 16
Math FFT 21
MATH MENU button 22
MEASURE button 34
Measure FFT spectrum 26
Measurement cursor 38
Mechanical 67
Mechanical shock 67
Menu hiding 19
Multi-functional knob 43
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Harmful and Poisonous Substances or Elements
DS O5000 Series Digital Storage Oscilloscope User Manual
73
N
N
N
N
Negative pulse 29
NTSC 28
Nyquist frequency 22
O
O
O
O
Option button 4
Overtime Trigger 10
Overview 3
P
P
P
P
PAL 28
Peak Detect
11
Pk-Pk 34
Power cord 5
Power supply 5
Probe 1
Probe attenuation 8
PROBE CHECK button 7
PROBE COMP connector 5
Probe compensation 3
P robe ground lead 1
Pulse width trigger 10
R
R
R
R
Recall 9
Rectangular 21
RUN/STOP button 36
S
S
S
S
Sample rate 3
SAVE/RECALL 3 3
Scale
11
Scan mode display (roll mode) 19
SECAM 28
SEC/DIV knob
11
Self calibration 8
SET TO 50% button 61
Simple measurement 12
Sine wave 40
SINGLE SEQ button 10
Slope 9
Slope trigger 10
Software installation CD 6 8
Square wave 3
Standard accessories 67
Swap Trigger 10
T
T
T
T
Time 10
Time base 1 0
Time cursor 12
Time-domain waveform 21
Trigger 9
Trigger coupling 9
Trigger source 9
Trigger status 15
TRIG MENU button 10
Troubleshooting 61
U
U
U
U
UTILITY 8
UTILITY button 8
V
V
V
V
Vectors 39
Vertical controls 19
Vertical position
11
Vertical scale
11
Video signal 10
Video trigger 10
Voltage 1
VOLTS/DIV knob 20
W
W
W
W
Waveform autocruise 43
Waveform display 9
Waveform scaling and positioning 9
Window Time Base 16
X
X
X
X
XY format 16

Specifications

Hantek DSO5202B Questions and Answers