OWON MSO User Manual

■

■

■

■

MSO Series

Portable Mixed Signal Digital Storage Oscilloscope

User Manual

MSO7062TD
MSO7102TD
MSO8102T
MSO8202T

WWW.OWON.COM.HK

Headquarter:

Branch:

Nov. 2014 edition Ver1.3.7

Copy Right in this Manual © Lilliput Company. All rights Reserved.
The Lilliput's products are under the protection of the patent rights in America and other countries,

including ones which have already obtained the patent rights and those which are applying for. The
information in this manual will replace all that in the materials published originally.

The information in this manual was correct at the time of printing. However, OWON will continue to
improve products and reserves the rights to changes specification at any time without notice.

OWON is the registered trademark of the Lilliput Company.

optoelectronics, 19 Heming Road, Lantian industrial zone, Zhangzhou, Fujian, China

Tel:[phone] Fax:[phone]

Web:

www.owon.com.hk Mail: Business Consulting: [e-mail]

Park, ZhenZhuWan,

Tel:[phone] Fax:[phone]

Xiamen Lilliput Technology Co.,Ltd.: the 5th floor, B Area, Chuangxin Mansion, Software

Fujian Lilliput Optoelectronics Technology Co.,Ltd.: The mansion of

Sale service: [e-mail]

Huandao RD, Xiamen, Fujian, China

User Manual of OWON Color Mixed Signal Digital Storage Oscilloscope

General Warranty

Lilliput warrants that the product will be free from defects in materials and workmanship
for a period of 3 years from the date of purchase of the product by the original purchaser
from the Lilliput Company. And the warrant y period of accessories such as probe, battery
is 12 months. This warranty only applies to the original purchaser and is not transferable
to the third party. If the product proves defective during the warranty period, Lilliput
either will repair the defective product without charge for parts and labor, or will provide a
replacement in exchange for the defective product. Parts, modules and replacement
products used by Lilliput for warranty work may be new or reconditioned to like new
performance. All replaced parts, modules and products become the property of Lilliput.

In order to obtain service under this warranty, Customer must notify Lilliput of the defect
before the expiration of the warranty period. Customer shall be responsible for packaging
and shipping the defective product to the service c enter design ated by Lilliput, and with a
copy of customer proof of purchase.

This warranty shall not apply to any defect, failure or damage caused by improper use or
improper or inadequate maintenance and care. Lilliput shall not be obligated to furnish
service under this warranty a) to repair damage resulting from attempts by personnel other
than Lilliput representatives to install, repair or service the product; b) to repair damage
resulting from improper use or connection to incompatible equipment; c) to repair any
damage or malfunction caused by the use of non-Lilliput supplies; or d) to service a
product that has been modified or integrated with other products when the effect of such
modification or integration increases the time or difficulty of servicing the product.

Please contact the neare st Lilliput's Sales and Service Offic es for services or a complete
copy of the warranty statement.

For better after-sales service, please visit www.owon.com.hk and register the purchased
product online.

Excepting the after-sales services provided in this summary or the applicable warranty
statements, Lilliput w ill not offer any guarantee for maintenance definitely declared or hinted,
including but not limited to the implied guarantee for marketability and special-purpose
acceptability. Lilliput should not take any responsibilities for any indirect, special or consequent
damages.

i

Table of Contents

1. General Safety Requirements .......................................................................................... 1

2. Safety Terms and Symbols ............................................................................................... 2

3. General Characteristics ................................................................................................... 4

4. Junior User Guidebook ................................................................................................... 5

4.1 Introduction to the Front Panel and the User's Interface ................................................. 6

Front panel ............................................................................................................................................... 6

Control(key and knob) area ...................................................................................................................... 7

4.2 Digital Storage Oscilloscope ................................................................................................. 9

User interface introduction ....................................................................................................................... 9

How to implement the General Inspec tion ............................................................................................. 11

How to implement the Function Inspection ........................................................................................... 11

How to Implement the Probe Compensation .......................................................................................... 12

How to Set the Probe Attenuatio n Coefficient ....................................................................................... 13

How to Use the Probe Safely ................................................................................................................. 14

How to Implement Auto-calibration ...................................................................................................... 14

Introduction to the Vertical System ........................................................................................................ 14

Introduction to the Horizontal S ystem.................................................................................................... 16

Introduction to the Trigger System ......................................................................................................... 16

4.3 Logic Analyzer ..................................................................................................................... 18

LA input connection ............................................................................................................................... 18

User interface introduction ..................................................................................................................... 18

How to acquire data ................................................................................................................................ 19

How to observe and analyze the data ..................................................................................................... 19

Display systems ...................................................................................................................................... 20

Trigger s ystem ........................................................................................................................................ 21

Threshold voltage sys tem ....................................................................................................................... 22

Sampling syst e m .................................................................................................................................... 23

5. Advanced User Guidebook ............................................................................................ 25

5.1 Digital Storage Oscilloscope ............................................................................................... 26

How to Set the Vertical System.............................................................................................................. 26

Implementation of Mathemati c a l M a nipulation Function ...................................................................... 30

Using FFT function.............................................................................................................................................. 30

Application of VERTICAL POSITION and VOLTS/DIV Knobs ......................................................... 35

How to Set the Horizontal syste m .......................................................................................................... 35

How to set trigger system ....................................................................................................................... 38

How to Operate the Function Menu ....................................................................................................... 47

How to Implement Sampling Setup ....................................................................................................... 47

How to Set the Display System .............................................................................................................. 49

How to Save and Recall a Wave Form ................................................................................................... 52

How to Implement the Auxiliary System Function Setting .................................................................... 54

ii

How to Implement the Automatic M e a surement ................................................................................... 55

How to Implement the Cursor Measurement ......................................................................................... 58

How to use Autoscale ............................................................................................................................. 62

How to Use E xecutive Buttons............................................................................................................... 63

5.2 Logic analyzer ...................................................................................................................... 69

How to set sampling system ................................................................................................................... 69

How to set trigger system ....................................................................................................................... 71

How to set threshold ............................................................................................................................... 79

How to set display system ...................................................................................................................... 81

How to set BUS ...................................................................................................................................... 82

How to measure ...................................................................................................................................... 84

How to save and recall ........................................................................................................................... 84

How to use USB flash disk to storage .................................................................................................... 86

How to search ......................................................................................................................................... 86

How to review setting info ..................................................................................................................... 89

How to use cursor measurement............................................................................................................. 89

How to set Utility ................................................................................................................................... 92

6. Demonstration ............................................................................................................... 93

Example 1: Measurement of Simple Signals ........................................................................... 93

Example 2: Working out the Gain of the Amplifier in the Metering Circuit ...................... 94

Example 3: Capture the Single Signal ..................................................................................... 95

Example 4: Analyze the Details of a Signal ............................................................................. 96

Example 5: Examine the Phase shift between two related signals ........................................ 98

Example 6: Video Signal Trigger ............................................................................................. 99

7. F.A.Q ............................................................................................................................ 100

8. Technical Specifications .............................................................................................. 101

Digital Stora ge Osc il lo s cope ................................................................................................... 101

Logic analyzer .......................................................................................................................... 104

General Technical Specifications ........................................................................................... 105

9. Appendix ...................................................................................................................... 106

Appendix A: Enclosure ........................................................................................................... 106

Appendix B: Maintenance, Cleaning and Repairing ........................................................... 106

Appendix C: Battery Using Guide ......................................................................................... 107

1

1. General Safety Requirements

Before any operations, please read the following safety precautions to avoid any
possible bodily injury and prevent this product or any other products connected
from damage. In order to avoid any contingent danger, this product is only used
within the range specified.

Only the qualified technicians can implement the maintenance.

To avoid Fire or Personal Injury:

 Connect the probe correctly. The grounding end of the probe corresponds to the

grounding phase. Please don't connect the grounding end to the positive phase.

 Use Proper Power Cord. Use only the power cord supplied with the product and

certified to use in your country.

 Connect or Disconnect Correctly. When the probe or test lead is connected to a

voltage source, please do not connect and disconnect the probe or test lead at random.

 Product Grounded. This instrument is grounded through the power cord grounding

conductor. To avoid electric shock, the grounding conductor must be grounded. The
product must be grounded properly before any connection with its input or output
terminal.

When powered by AC power, it is not allowed to measure AC power source
directly, because the testing ground and power cord ground conductor are
connected together, otherwise, it will cause short circuit.

When powered by battery, the product must ground connection. To avoid electric
shock, there must be a ground wire connect between ground and the ground port
(on the back of product panel).

 Check all Terminal Ratings. To avoid fire or shock hazard, check all ratings and

markers of this product. Refer to the user's manual for more information a bout ratings
before connecting to the instrument.

 Do not operate without covers. Do not operate the instrument with co vers or panels

removed.

 Use Proper Fuse. Use only the specified type and rating fuse for this instrument.
 Avoid exposed circuit. Do not touch exposed junctions and components when the

instrument is powered.

 Do not operate if in any doubt. If you suspect damage occurs to the instrument, have

it inspected by qualified service personnel before further operations.

 Use your Oscilloscop e in a well-ventilated area. Make sure the instrument installed

with proper ventilation, refer to the user manual for more details.

 Do not operate in wet conditions.
 Do not operate in an explosive atmosphere.
 Keep product surfaces clean and dry.

2

2. Safety Terms and Symbols

Safety Terms

Terms in this manual. The following terms may appear in this manual:

Warning: Warning indicates the conditions or practices that could result in

injury or loss of life.

Caution: Caution indicates the conditions or practices that could result in

damage to this product or other property.

Terms on the product. The following terms may appear on this product:
Danger: It indicates an injury or hazard may immediately happen.
Warning: It indicates an injury or hazard may be accessible potentially.
Caution: It indicates a potential damage to the instrument or other property might occur.

Safety Symbols

Symbols on the product. The following symbol may appear on the product:

Hazardous Voltage

Protective Earth Terminal

Test Ground

Refer to Manual

Chassis Ground

To avoid bod y dama ge and prevent product and connected equipment damage, carefully
read the following safety information before using the test tool. This product can only be
used in the specified applications.

Warning:

The two channels of the oscilloscope are non-isolated electrically. The channels
should adopt common basis during measuring. To prevent short ci rcuits, the 2 probe
ground must not be connected to 2 different non-isolated DC level.

3

Ground Clip

Signal Input

Oscilloscope

Electrical Outlet

Probe

Power Cord

Ground Clip

Signal Input

Oscilloscope

(Battery-power)

PC Electrical OutletProbe

USB/COM Cable

Warning:

To avoid fire or electrical shock
connected

42V peak (30Vrms) or on circuits of more than

4800VA

apply input voltages above the rating of the instrument

because the probe tip voltage will directly transmit to the

Warning:

The channels should adopt common basis during measuring. To prevent short
circuits, the 2 probe ground must not be connected to 2 different non-isolated DC
level.

The diagram of the oscilloscope ground wire connection:

The diagram of the ground wire connection when the battery-powered osci llos cope is
connected to the AC-powered PC through the ports:

It is not allowed to measure AC power when the oscilloscope i s A C p o w e re d, o r when
the battery-powered oscilloscope is connected to the AC-powered PC through the
ports.

is more than

, please take note of below items:

 Only use accessory insulated voltage probes and test lead.
 Check the accessories such as probe before use and replace it if

there are any damages.

 Remove probes, test leads and other accessories immediately after

use.

 Remove USB cable which connects oscilloscope and computer.

, when the oscilloscope input signal

 Do not

oscilloscope. Use with caution when the probe is set as 1:1.

 Do not use exposed metal BNC or banana plug connectors.
 Do not insert metal objects into connectors.

4

3. General Characteristics

Digital Storage Oscilloscope

 Model Bandwidth Sample Rate

MSO7062TD 60MHz 1GS/s half channel*, 500MS/s each channel
MSO7102TD 100MHz 1GS/s half channel*, 500MS/s each channel
MSO8102T 100MHz 2GS/s half channel*, 1G S/s each channel
MSO8202T 200MHz 2GS/s half channel*, 1G S/s each channel

 Dual channel, 2M points on each ch ann el for the Record length;
 Reading-out with the cursor;
 Twenty automatic measurement functions;
 Autoscale function;
 Color liquid crystal display of high resolution an d high contrast with adjustable

back light;

 Storage and call-out of waveforms;
 Automatic setting function provided capable of fast setting;
 Multiple-waveform calculation function;
 Built-in FFT function;
 Implementation of detecting the average and peak values of the waveform;
 Digital real-time oscilloscope;
 Edge, video, alternate, pulse and slope triggering function;
 RS232 or USB communication ports;
 Different continuous displaying time;
 Multiple Language User Interface.

*Half channel is when only one channel is turned on.

Logic Analyzer

 16 input channel;
 4M max Storage for each channel;
 Plenty of trigger Mode;
 Convenient data measurement & data search;
 Freely setting of all kinds of threshold level.

5

4. Junior User Guidebook

This chapter deals with the following topics mainly:
Digital Storage Oscilloscope

 Introduction to the front panel and the user's interface of the MSO series

oscilloscope

 How to implement the general inspection
 How to implement the function in s pec ti on
 How to make a probe compensation
 How to set t he pro be a tte nuation coefficient
 How to use the probe safely
 How to implement an auto-calibration
 Intro d uct i on to the verti ca l sy ste m
 Introduct i on to th e ho riz on ta l sy stem
 Intro d uct i on to the tri gg er sy stem

Logic Analyzer

 User interface introduction
 How to a cquire data
 How to observe and analyze the data
 Displa y system
 Trig ger system
 Thres h old vo lta ge syste m
 Sampling system

6

4.1 Introduction to the Front Panel and the User's Interface

When you get a new-type oscilloscope, you should get acquainted with its front panel at
first and the MSO series mixed digital storage oscilloscope is no exception. This chapter
makes a simple description of the operation and function of the front panel of the MSO
series mixed oscilloscope, enabling you to be familiar with the use of the MSO series
mixed oscilloscope in the shortest time. The MSO series mixed oscilloscope offers a
simple front panel with distinct functions to users for their completing some basic
operations, in which the knobs and function pushbuttons are included. The knobs have the
functions similar to other oscilloscopes. The 5 buttons in the column on the right side of
the display screen are menu selection buttons (defined as F1 to F5 from top to bottom
respectively), through which, you can set the different options for the current menu. The
other pushbuttons are function buttons, through which, you can enter different function
menus or obtain a specific function application directly.

Front panel

Fig. 4-1 Front panel overview

1、 Power on/off
2、 Display area
3、 Control (key and knob) area
4、 U slot
5、 LA signal input
6、 DSO signal input
7、 Measurement signal output
8、 Power and charging indication: Green light indicates AC supply and battery

full charged; yellow light indicate under charging.

7

Control(key and knob) area

Fig. 4-2 Keys Overview

1、Menu option setting: F1~F5

2、Switch

Switch includes two keys and one knob. Press "OSC/LA" to switch betwe en DSO and

LA.

For DSO "cursor" knob and "info" ke y are idle. But the "cursor" knob takes effect in

magnifying or minifying the waveform after FFT operation when the mode is FFT.

For LA, "cursor" knob to adjust current cursor position and "info" key to loading

setting info for acquired waveform and current waveform.

3、Function key area

For DSO 0~5 keys are idle and 6~F refer to different DSO function menu.
For LA, 3.4.5.6.7 refers to figure and other keys refer to digit or function menu.

4、Vertical control area

It's including 3 keys and 4 knobs.

For DSO: "CH1 menu" and "CH2 menu" correspond to setting menu in CH1 and CH2,
"Wave Math" key refer to math menu, the math menu consists of six kinds of operations,
including CH1-CH2、CH2-CH1、CH1+CH2 、CH1*CH2、CH1/CH2 and FFT .Two
"Vertical position" knobs control the vertical positi on of CH1. CH2, and two "Volts/Div"
knob control voltage scale of CH1, CH2.

For LA, "CH1 menu", "CH2 menu", "Wave math" keys and "CH2 Volts/Div" knob are

8

idle. "CH1 Vertical ", "CH2 Vertical" to adjust the M1, M2 position in Cursor menu when
cursor display is on "CH1 Volts/Div".

5、Horizontal control area with 2 knob and 1 key.

For DSO, "Horizontal position" knob control trigger position, "Volts/Div" control

time base, "Horizontal menu" key refer to horizontal system setting menu.

For LA, "Horizontal menu" key is idle. "Horizontal position" knob to adjust the
position of value displayed currently quickly. "Sec/Div" knob to adjust value resolution
displayed currently.

6、Trigger control area with 4 keys and 1 knob.

For DSO, "Trig adjust" knob is to adjust trigger voltage. Other four keys refer to
trigger system setting.

For LA, "Force trig" key is idle. "Trig menu" refer to trigger menu control. "Trig
adjust" knob to adjust trigger position in memory, "SET 50%" is to set trigger position as
50% and "SET Zero" set trigger position as 0.

9

4.2 Digital Storage Oscilloscope

User interface introduction

Fig. 4-3 Illustrative Drawing of Display Interfaces

1. The Trigger State indicates the following information:

Auto: The oscilloscope is under the Automatic mode and is collecting the

waveform under the non-trigger state.

Trig' d: The oscilloscope has already detected a trigger s ignal and is collectin g

the after-triggering information.

Ready: All pre-triggered data have been capt ured and the oscill oscope has been

already ready for accepting a trigger.

Scan: The oscilloscope captures and displays the waveform data continuously in

the scan mode.

Stop: The oscilloscope has already stopped the waveform data acquisition.

2. Waveform Viewing Area.

3. The purple pointer indicates the horizontal trigger position, which can be adjusted

by the horizontal position control knob.

4. The pointer indicates the trigger position in the internal memory.

10

5. This reading shows the ti me deviation between th e horizontal trigger positi on and

the window center line, which is regarded as 0 in the window center.

6. It indicates the current function menu.

7. It indicates the operation options for the current function menu, which changes

with the function menus.

8. The purple pointer shows the trigger level position.

9. The reading shows the trigger level value.

10. The reading shows the trigger source.

11. It shows the selected trigger type:

Rising edge triggering

Falling edge triggering

Video line synchronous triggering

Video field synchronous triggering

12. The reading shows the window time base set value.

13. The reading shows the main time base set value.

14. The two yellow dotted lines indicate the size of the viewing expanded window.

15. The icon shows the coupling mode of the CH2 channel.

"—" indicates the direct current coupling
" ～" indicates the AC coupling

" " indicates GND coupling.

16. The reading shows the vertical scale factor (the Voltage Division) of the CH2

channel.

17. The icon indicates the coupling mode of the CH1 channel:

The icon "–" indicates the direct current coupling
The icon "～" indicates the AC coupling
The icon " " indicates GND coupling.

18. The reading indicates the vertical scale factor (the Voltage Division) of the CH1

channel.

19. The information shows the zero point positions of CH1 or CH2 channel.

20. The yellow pointer shows the grounding datum point (zero point position) of the

waveform of the CH2 channel. If the pointer is not displayed, it shows that this
channel is not opened.

21. The red pointer indicates the grounding datum point (zero point position) of the

11

waveform of the CH1 channel. If the pointer is not displayed, it shows that the
channel is not opened.

22. The positions of two purple dotted line cursors measurements.

23. The reading shows the frequency of the two channels. It is a 6 digits cymometer.

Its measurement range of frequency is 2Hz to full bandwidth. When the
triggering mode is edge t riggering, it is a one channel cymometer and it can only
measure the frequency of the triggering channel. When the triggering mode is
alternating triggering, it is a two channel cymometer and it can measure the
frequency of two channels.

How to implement the General Inspection

After you get a new MSO series oscilloscope, it is recommended that you should
make a check on the instrument according to the following steps:

1. Check whether there is any damage caused by transportation.

If it is found that the packaging carton or the foamed plastic protection cushion has
suffered serious damage, do not throw it away first till the complete device and its
accessories succeed in the electrical and mechanical property tests.

2. Check the Accessories

The supplied access ories have been al r eady described in t he "Appendix A: Enclosure"
of this Manual. You can check wh ether ther e is any loss of accesso ries wi th referenc e
to this description. If it is found that there is any accessory lost or damaged, please get
in touch with the distributor of LILLIPUT responsible for this service or the
LILLIPUT's local offices.

3. Check the Complete Instrument

If it is found that there is damage to the appearance of the instrument, or the
instrument can not work normally, or fails in the performance test, please get in touch
with the LILLIPUT's distributor responsible for this business or the LILLIPUT's local
offices. If there i s damage t o the inst rument caus ed by the tran sportati on, pleas e keep
the package. With the transportation department or the LILLIPUT's distributor
responsible for this business informed about it, a repairing or replacement of the
instrument will be arranged by the LILLIPUT.

How to implement the Function Inspection

Make a fast function check to verify the normal operation of the instrument, according
to the following steps:

1. Connect the Instrument to the Power and Push down the Power Switch Button.

The instrument carries out all self-check items and shows the prompt "Press any Key
Enter system". Press th e "8 (UTILITY)" button to get access to the "FUNCTION"

menu and push down F2 the menu selection button to call out the function "Recall
Factory". The default attenuation coefficient set value of the probe in the menu is

12

10X,

2. Set the Switch in the Oscilloscope Probe as 10X and Connect the Oscilloscope

with CH1 Channel.

Align the slot in the probe with the plug in the CH1 connector BNC, and then tighten
the probe with rotating it to the right side.

Connect the probe tip and the ground clamp to the connector of the probe
compensator.

3. Press the "7(AUTOSET)" Button.

The square wave of 1 KHz frequency and 5V peak-peak value will be displayed in
several seconds (see Fig. 4-4).

Fig.4-4 Auto set

Check CH2 by repeating Step 2 and Step 3.

How to Implement the Probe Compensation

When connect the probe with any input channel for the first time, make this
adjustment to match the probe with the input channel. The probe which is not
compensated or presents a compensation deviation will result in the measuring er ror
or mistake. For adjusting the probe compensation, please carry out the following
steps:

1. Set the attenuation coefficient of the probe in the menu as 10X and that of the

switch in the probe as 10X, and connect the oscilloscope probe with the CH1
channel. If a probe hook tip is used, ensure that it keeps in close touch with the
probe. Connect the probe tip with the signal connector of the probe compensator
and connect the reference wire clamp with the ground wire connector of the
probe connector, and then press the button "7(AUTOSET)".

2. Check the displayed wave forms and regulate the probe till a correct

compensation is achieved (see Fig.4-5 and Fig.4-6).

13

Fig. 4-5 Displayed Wave Forms of the Probe Compensation

3. Repeat the steps mentioned if necessary.

Fig. 4-6 Adjust Probe

How to Set the Probe Att enuation Coefficient

The probe has sev eral att enuation coefficien ts, which wi ll influence t he verti cal scale
factor of the oscilloscope.

If it is required to change (check) the set value of the probe attenuation coeffici ent,
press the function menu button of the channels used, then push down the selection
button corresponding to the probe till the correct set value is shown.

This setting will be valid all the time before it is changed again.

Note: The attenuation coefficient of the probe in the menu is preset to 10X when

the oscilloscope is delivered from the factory.

Make sure that the set value of the attenuation s witch in the probe is the same as the
menu selection of the probe in the oscilloscope.

The set values of the probe switch are 1X and 10X (see Fig. 4-7).

Fig.4-7 Attenuation Switch

14

Note: When the attenuation switch is set to 1X, the probe will limit the bandwidth

of the oscilloscope in 5MHz. If it is needed to use the whole bandwidth of the
oscilloscope, the switch must be set to 10X.

How to Use the Probe Safely

The safety guard ring around the probe body protects your finger against the electric
shock, shown as Fig. 4-8.

Fig. 4-8 Finger Guard

Warning: In order to avoid suffering from the electric shock, please keep your

finger behind the safety guard ring of the probe body during the operation.

In order to protect you from suffering from the electric shock during your using the

probe, do not touch the metal part of the probe tip when the probe is connected to
the power supply.

Before making any measurements, please connect the probe to the instrument and connect the

ground terminal to the earth.

How to Implement Auto-calibration

The auto-calibration application can make the oscilloscope reach the optimum
condition rapidly to obtain the most accurate measurement value. You can carry out
this application program at any time, but when the range of variation of the ambient
temperature is up to or over 5℃, this program must be executed.

For the performing of the self-calibration, all probes or wires should be disconnected
with the input connector first. Then, press the "8(UTILITY)" button to call out the
FUNCTION menu; push down the F3 menu sel ection button to choose the option "
Do Self Cal"; finally, run the program after confirming that everything is ready now.

Introduction to the Vertical System

Shown as Fig.4-9, there are a series of buttons and knobs in VERTICAL
CONTROLS. The following practices will gradually direct you to be familiar with

the using of the vertical setting.

15

Fig. 4-9 Vertical Control Zone

1. Use the button "VERTICAL POSI TION" knob to show the signal in the center

of the waveform window. The "VERTICAL POSITION" knob functions the
regulating of the vertical display position of the signal. Thus, when the
"VERTICAL POSITION" knob is rotated, the pointer of the earth datum point
of the channel is directed to move up and down following the wave form.

Measuring Skill

If the channel is under the DC coupling mode, you can rapidly measure the DC
component of the signal through the observation of the difference between the wave
form and the signal ground.

If the channel is under the AC mode, the DC component will be removed by filtration.
This mode helps you display the AC component of the signal with a higher
sensitivity.

2. Change the Vertical Setting and Observe the Consequent State Information

Change.

With the information displayed in the status bar at the bottom of the waveform
window, you can determine any changes in the channel vertical scale factor.

 Rotate the vertical "VOLTS/DIV" knob and change the "Vertical Scale Factor

(Voltage Division)", it can be found that the scale factor of the channel
corresponding to the status bar has been changed accordingly.

 Press buttons of "CH1 MENU", "CH2 MENU" and "MATH MENU", the

operation menu, symbols, wave forms and scale factor status information of the
corresponding channel will be displayed in the screen.

16

Introduction to the Horizontal System

Shown as Fig.4-10, there are a button and two knobs in the "HORIZONTAL
CONTROLS". The following practices will gradually direct you to be familiar with

the setting of horizontal time base.

Fig. 4-10 Horizontal Control Zone

1. Use the horizontal "SEC/DIV" knob to change the horizontal time base setting

and observe the consequent status information change. Rotate the horizontal
"SEC/DIV" knob to change the horizontal time base, and it can be found that the
"Horizontal Time Base" display in the status bar changes accordingly. The
horizontal scanning speed steps from

2 ns up to 100s in the sequence of 1-2-5 ----- MSO7062TD,7102TD,8102T;
1 ns up to 100s in the sequence of 1-2-5 ----- MSO8202T.

2. Use t he "HORIZONTAL POSITION" knob to adjust the horizontal position of

the signal in the waveform window. The "HORIZONTAL POSITION" knob is
used to control the triggering displacement of the signal or for other special
applications. If it is applied to triggering the displacement, it can be observed that
the wave form moves horizontally with the knob when you rotate the
"Horizontal Position" knob.

3. With the "HORIZONTAL MENU" button pushed down, you can set and initiate

the Window Expansion.

Introduction to the Trigger System

Shown as Fig.4-11, there are a knob and four buttons in the "TRIGGER
CONTROLS". The following practices will dire ct you to be familiar with the setting

of the trigger system gradually.

17

Fig.4-11 Trigger Control Zone

1. Press the "TRIG MENU" button and call out the trigger menu. With the

operations of the 5 menu selection buttons, the trigger setting can be changed.

2. Use the "LEVEL" knob to change the trigger level setting.

With the rotation of the "LEVEL" knob, it can found that the trigger indicator in
the screen will move up and down with the rotation of the knob. With the
movement of the trigger indicator, it can be observed that the trigger level value
displayed in the screen changes.

3. Press the button "SET TO 50%" to set the trigger level as the vertical midpoint

values of the amplitude of the trigger signal.

4. Press the "FORCE TRIG" button to force a trigger signal, which is mainly

applied to the "Normal" and "Single" trigger modes.

5. The "SET TO ZERO" button is used to reset the trigger horizontal position.

18

4.3 Logic Analyzer

LA input connection

Insert the plug of OL-16 LA module 50P into the LA signal input on front panel and fix
two screw. Then 16 channel clamp of OL-16 LA connect to target signal and ready for
measurement

User interface introduction

Fig.4-12：User interface of logic analyzer
1、Channel and Bus indicate: display current working channel and bus 。
2、Channel binary value display: display binary system value for the channel position in

current cursor 。
3、Battery powers indicate: indicate battery power when battery inside。
4、Decimal system value indicate the position of current cursor in storage area。
5、Yellow dashed line indicates current cursor。
6、Blue dashed line indicates current trigger position。
7、Percentage value indicate current trigger position in storage area。
8、Sample data area indication: red for bus, blue and green for "0", "1" i n each channel

data。
9、Decimal system value indicate the position of current cursor relate to current trigger。
10、Operation options indicate current function menu and different function menu have

different display。

11、Sample status indicate: "RUN" for sampling and wait for trigger, "TRIG" fo r trigger

19

detected and wait for sample finished. "STOP" for sampling finished。
12、Value indicate current time base。
13、Info windows: different operation display different info。
14、Value display current filter modulus setting。
15、Value display current sample rate setting。
16、Two purple lines for cursor 1 and cursor 2 in cursor measurement
17、Percentage value indicate trigger position for next sampling in storage area。
18、Red square indicate the current sampling data position in storage area。
19、Red scale line indicates the time base width in sampling data display area and totally

4.8 divisions. The width between two long scale lines is 1 division and between short

scale lines are 0.1 divisions。

How to acquire data

When you start to acquire LA begins sampling data from the probes. Then each time
clock occurs the data will be sampled.

Then sampled data is sent to trigger function block and store in main memory. The
trigger program checks specific events with the sampled data and take specific action. The
trigger program can check events as rising edge, data values, and data ranges etc. LA
module enables a post trigger delay counter when trigger reach specified value and to
allow post trigger portion of the acquisition memory to fill before data acquisition stops.

Press "F" to get into data acquisition mode after finish setting for trigger and
sampling. Then running status display as "RUN" and running status display "TRIG" when
detected trigger signal and display "STOP" when data acquisition finished. Then you can
start to analyze data. Data acquisition can be stopped by press "F" again during the
process.

Note:

When running status display as "RUN"、"TRIG" during data acquiring
process ,only "F" key fo r operat e and oth er keys or knob s are idl e. Only til l status
display as "STOP" then others operations are working.

How to observe and analyze the data

Follow up below steps to observe and analyze the current data acquired:

1. Turn "Sec/Div" knob to adjust the time length for data display in each division (to

adjust the data resolution displayed).

2. Turn "Cursor" knob to observe more details for the data of current cursor

position. The data of binary value for current cursor position display in binary
system area and power on measure menu then bus value for current cursor
position will display in measurement window.

3. Turn "horizontal positio n" knob can move the current displayed data to left/right

position in storage area quickly.

We will use a simple measurement example to explain the primary setting for LA

measurement.

We need to measure a three lines SPI signal, three signals are enable, clock and data.
Clock is in effect when enable is low clock data, and clock frequency is 1M, data width is
32 digits, every clock corresponds to one data. Signal voltage is 3.3V.

20

Display systems

We need only three channels as what we measure is 3 signals. And other channel and
bus can be off. In this way the display resolution in using channel will be increased.

Display system mainly to set on/off for measure channel. We use CH00、CH01、
CH02 as measure channel correspond to signal enable, clock, data accordingly. Other
channel and bus is off.

1、 Press "A（DISPLAY）" and display menu appears.
2、 Press "F1" till signal sources display as "Channel".
3、 Press "F2" or turn "CH1 Volts/Div" knob till channel No. display as "CH00".
4、 Press "F3" and set the signal sources as "ON". Repeat operation of steps 3.4 and

set CH01, CH02 as "ON" and CH03-CHOF as "OFF". Refer to Fig.4-13.

5、 Press "F1" till sources display as" BUS".
6、 Press "F2" till Bus No. display as"BUS0".
7、 Press "F3" and set signal sources as "OFF". Repeat operation of steps 6.7 and set

BUS1、BUS2、BUS3 all as "OFF". Ref to Fig.4-14.
Now the screen only show CH00、CH01、CH02 and others channel and bus are all off. Ref
to Fig.4-15

Fig.4-13

21

Fig.4-14

Fig. 4-15

Trigger system

LA is same as DSO and need to make trigger to synchronize data. The trigger system

mainly to set trigger sources, trigger mode and trigger position.

We make CH00 as trigger source and trigger mode as falling edge, trigger position in

50%. Trigger system setting steps as below:

1. Press "Trig menu" and menu appears.

2. Press "F1" till trigger mode display as "Edge".

3. Press "F2" or turn "CH1 Volts/Div" till trigger sources display as "CH00".

4. Press "F3" till trigger type display as "Falling".

5. Turn "Trigger adjust" knob or press "SET 50%"till "NEXT T POS" window
display as "50%"

Then trigger system setting finished (ref to Fig.4-16).

22

Threshold voltage system

Fig. 4-16

Threshold voltage system is to set high/low of the trigger voltage. The system already
fixed the setting for normal logic voltage as CMOS, LVMOS etc. And you can set any
trigger voltage using custom setting.

The signal voltage is 3.3V and we set threshold voltage as "LVCMO3.3/1.7V" as
below steps:

1. Press "1 (Threshold)" key and the menu appears.

2. Press "F1" key till Channel display as "CH00～CH03"

3. Press "F2" key till threshold display as "LVCMOS 3.3/1.7V".

Then the threshold setting is finished (ref to Fig.4-17).

Fig. 4-17

23

Sampling system

The waveform accuracy reverts from sample data depend on sample rate for
measured signals. The waveform reverted in LA is referring to the sample signals storage
in the memory. The recorded data will display in error if the sample rate is too lower.
Below figures explains how sample rate influence the waveform recorded in LA.

Fig.4-18

There is an importance compromise between recorded signal resolution and its
continuance (relate to time). The sample memory depth of LA is fix ed and once adding
sample rate then resolution will get better accordingly. But it will decrease the
continuance for acquire signal. In a word, if the sample rate is quicker, the continuance for
recorded signal will get smaller but with better resolution.

Sampling system can set difference sample rate and storage depth.

We use 10 times sampling rate to measure the signal clock frequency of 1M, and
storage depth set as "Normal". Sampling system setting steps as below:

1. Press "E(ACQUIRE)" and menu appears.

2. Press "F1" or turn "CH1 Volts/div" knob till sample rate setting display as"10M".

3. Press "F2" till storage depth display as "General".

Sampling system setting finished (ref to the fig.)

Then press "F" and start to sampling data. Display show as fig. 4-19 when sampling
finished.

24

Fig. 4-19

25

5. Advanced User Guidebook

Up till now, you have already been familiar with the initial operations of the
functions of the function areas, buttons and knobs in the front panel of the MSO series
oscilloscope. Based the introduction of the previous Chapter, the user should have an
intimate knowledge of the determination of the change of the oscilloscope setting through
observing the status bar. If you have not been familiar with the above-mentioned
operations and methods yet, we advise you to read the section of "Chapter One Junior
Users' Guidebook".

This chapter will deal with the following topics mainly:

Digital Storage Oscilloscope

 How to Set the Vertical System
 How to Set the Horizontal System
 How to Set the Trigger System
 How to Implement the Sampling Setup
 How to Set the Display System
 How to Save and Recall Wave Form
 How to Implement the Auxiliary System Function Setting
 How to Implement the Automatic Measurement
 How to Implement the Cursor Measurement
 How to Use Autoscale function
 How to Use Executive Buttons

Logic analyze r

 How to set sampling system
 How to set trigger system
 How to set threshold
 How to set display system
 How to set BUS
 How to measure
 How to save and recall
 How to use USB Mass storage device to storage
 How to search
 How to review setting info
 How to use cursor measurement