Owon MSO series User manual

MSO Series
Portable Mixed Signal Digital Storage Oscilloscope
User Manual
■MSO7102TD
■MSO8102T
■MSO8202T
www.owon.com.cn
www.owon.com.hk

Mar. 2012 edition Ver1.1
Copy Right in this Manual © Lilliput Company. All rights have been 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.
Headquarter: Fujian Lilliput Optoelectronics Technology Co.,Ltd.: The mansion of
optoelectronics hengsan road, Lantian industrial zone ,Zhangzhou,Fujian,China
Tel:[phone] Fax:[phone]
Web: www.owon.com.hk. Mail:Business Consulting: [e-mail]
Sale service: [email protected].hk
Branch: Xiamen Lilliput Technology Co.,Ltd.: the 5th floor, B Area, Chuangxin Mansion, Software
Park, ZhenZhuWan, Huandao RD, Xiamen, Fujian, China
Tel:[phone] Fax:[phone]
Web: www.owon.com.cn Mail: [email protected].cn

User Manual of OWON Color Mixed Signal Digital Storage Oscilloscope
General Warranty
The Lilliput warrants that the product will be free from defects in materials and
workmanship for a period of three years from the date of purchase of the product by the
original purchaser from the Lilliput company. And the warranty period of accessories such
as probe, battery, adapter is one year. 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 center designated 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 nearest Lilliput’s Sales and Service Offices for services or a complete
copy of the warranty statement.
Excepting the after-sales services provided in this summary or the applicable warranty
statements, Lilliput will 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.

1
Table of Contents
1.General Safety Requirements........................................................................................... 1
2. Safety Terms and Symbols............................................................................................... 2
3.General Characteristics.................................................................................................... 2
4.Junior User Guidebook .................................................................................................... 3
4.1 Introduction to the Front Panel and the User's Interface.................................................. 4
Front panel ............................................................................................................................................... 4
Control(key and knob) area...................................................................................................................... 5
4.2Digital Storage Oscilloscope .................................................................................................. 7
User interface introduction....................................................................................................................... 7
How to implement the General Inspection ............................................................................................... 9
How to implement the Function Inspection ............................................................................................. 9
How to Implement the Probe Compensation.......................................................................................... 10
How to Set the Probe Attenuation Coefficient ....................................................................................... 11
How to Use the Probe Safely.................................................................................................................. 12
How to Implement Auto-calibration ...................................................................................................... 12
Introduction to the Vertical System........................................................................................................ 12
Introduction to the Horizontal System.................................................................................................... 14
Introduction to the Trigger System......................................................................................................... 14
4.3Logic Analyzer ...................................................................................................................... 16
LA input connection............................................................................................................................... 16
User interface introduction..................................................................................................................... 16
How to acquire data................................................................................................................................ 17
How to observe and analyze the data ..................................................................................................... 17
Display systems...................................................................................................................................... 18
Trigger system........................................................................................................................................ 19
Threshold voltage system....................................................................................................................... 20
Sampling system .................................................................................................................................... 21
5.Advanced User Guidebook............................................................................................. 23
5.1Digital Storage Oscilloscope ................................................................................................ 24
How to Set the Vertical System.............................................................................................................. 24
Implementation of Mathematical Manipulation Function...................................................................... 28
Using FFT function..............................................................................................................................................28
Application of VERTICAL POSITION and VOLTS/DIV Knobs......................................................... 33
How to Set the Horizontal system .......................................................................................................... 33
How to set trigger system....................................................................................................................... 36
How to Operate the Function Menu ....................................................................................................... 45
How to Implement Sampling Setup ....................................................................................................... 45
How to Set the Display System.............................................................................................................. 47
How to Save and Recall a Wave Form................................................................................................... 50
How to Implement the Auxiliary System Function Setting.................................................................... 52

2
How to Implement the Automatic Measurement.................................................................................... 53
How to Implement the Cursor Measurement .........................................................................................56
How to use Autoscale............................................................................................................................. 60
How to Use Executive Buttons............................................................................................................... 61
5.2Logic analyzer....................................................................................................................... 63
How to set sampling system................................................................................................................... 63
How to set trigger system....................................................................................................................... 65
How to set threshold............................................................................................................................... 73
How to set display system ...................................................................................................................... 75
How to set BUS...................................................................................................................................... 76
How to measure...................................................................................................................................... 78
How to save and recall ........................................................................................................................... 78
How to use USB flash disk to storage .................................................................................................... 80
How to search......................................................................................................................................... 80
How to review setting info ..................................................................................................................... 83
How to use cursor measurement............................................................................................................. 83
How to set Utility ................................................................................................................................... 86
6.Demonstration ................................................................................................................ 87
Example 1: Measurement of Simple Signals........................................................................... 87
Example 2: Working out the Gain of the Amplifier in the Metering Circuit ...................... 88
Example 3: Capture the Single Signal ..................................................................................... 89
Example 4: Analyze the Details of a Signal............................................................................. 90
Example 5: Examine the Phase shift between two related signals ........................................ 92
Example 6: Video Signal Trigger............................................................................................. 93
7.F.A.Q ............................................................................................................................... 94
8. Technical Specifications................................................................................................ 95
Digital Storage Oscilloscope ..................................................................................................... 95
Logic analyzer............................................................................................................................ 98
General Technical Specifications ............................................................................................. 99
9. Appendix ...................................................................................................................... 100
Appendix A: Enclosure ...........................................................................................................100
Appendix B: Maintenance, Cleaning and Repairing ........................................................... 100
Appendix C: Battery Using Guide ......................................................................................... 101

1.General Safety Requirements
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 about ratings
before connecting to the instrument.
Do not operate without covers. Do not operate the instrument with covers 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 Oscilloscope 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. Safety Terms and Symbols
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 Refer to Manual
Protective Earth Terminal Chassis Ground
Test Ground

2. Safety Terms and Symbols
1
To avoid body damage 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 circuits, the 2 probe
ground must not be connected to 2 different non-isolated DC level.
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:
It is not allowed to measure AC power when charging the oscilloscope with adapter.
Warning:
To avoid fire or electrical shock, when the oscilloscope input signal
connected is more than 42V peak (30Vrms) or on circuits of more than
4800VA, please take note of below items:
zOnly use accessory insulated voltage probes and test lead.
zCheck the accessories such as probe before use and replace it if
there are any damages.
zRemove probes, test leads and other accessories immediately after
use.
zRemove USB cable which connects oscilloscope and computer.
zDo not apply input voltages above the rating of the instrument
because the probe tip voltage will directly transmit to the
oscilloscope. Use with caution when the probe is set as 1:1.
zDo not use exposed metal BNC or banana plug connectors.
zDo not insert metal objects into connectors.

3.General Characteristics
2
3.General Characteristics
Digital Storage Oscilloscope
zModel Bandwidth SampleRate
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
zDual channel, 2M points on each channel for the Record length;
zReading-out with the cursor;
zTwenty automatic measurement functions;
zAutoscale function;
zColor liquid crystal display of high resolution and high contrast with adjustable
back light;
zStorage and call-out of waveforms;
zAutomatic setting function provided capable of fast setting;
zMultiple-waveform calculation function;
zBuilt-in FFT function;
zImplementation of detecting the average and peak values of the waveform;
zDigital real-time oscilloscope;
zEdge,video,alternate,pulse and slope triggering function;
zRS232 or USB communication ports;
zDifferent continuous displaying time;
zMultiple Language User Interface.
*Half channel is when only one channel is turned on.
Logic Analyzer
z16 input channel;
z4M max Storage for each channel;
zPlenty of trigger Mode;
zConvenient data measurement & data search;
zFreely setting of all kinds of threshold level.

4.Junior User Guidebook
3
4.Junior User Guidebook
This chapter deals with the following topics mainly:
Digital Storage Oscilloscope
zIntroduction to the front panel and the user’s interface of the MSO series
oscilloscope
zHow to implement the general inspection
zHow to implement the function inspection
zHow to make a probe compensation
zHow to set the probe attenuation coefficient
zHow to use the probe safely
zHow to implement an auto-calibration
zIntroduction to the vertical system
zIntroduction to the horizontal system
zIntroduction to the trigger system
Logic Analyzer
zUser interface introduction
zHow to acquire data
zHow to observe and analyze the data
zDisplay system
zTrigger system
zThreshold voltage system
zSampling system

4.Junior User Guidebook
4
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.

4.Junior User Guidebook
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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 between DSO and
LA.
For DSO “cursor” knob and “info” key are idle. But the “cursor” knob takes effect in
magnifying or minificating 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 position 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

4.Junior User Guidebook
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are 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.

4.Junior User Guidebook
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4.2Digital 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 signal and is collecting
the after-triggering information.
Ready: All pre-triggered data have been captured and the oscilloscope 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.

4.Junior User Guidebook
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5. This reading shows the time deviation between the horizontal trigger position and
the window centre 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

4.Junior User Guidebook
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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 triggering, it is a one channel cymometer and it can
only measure the frequency of the tiggering 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 accessories have been already described in the Appendix B
“Accessories” of this Manual. You can check whether there is any loss of accessories
with reference 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 is damage to the instrument caused by the transportation, please
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 the “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

4.Junior User Guidebook
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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 error
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).

4.Junior User Guidebook
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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 Attenuation Coefficient
The probe has several attenuation coefficients, which will influence the vertical scale
factor of the oscilloscope.
If it is required to change (check) the set value of the probe attenuation coefficient,
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 switch 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

4.Junior User Guidebook
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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 selection 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.

4.Junior User Guidebook
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Fig. 4-9 Vertical Control Zone
1. Use the button “VERTICAL POSITION” 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.
zRotate 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.
zPress 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.