Lilliput Owon XDS2000 User Manual

XDS2000 Dual-Channel Series

Digital Storage Oscilloscopes

User Manual

www.owon.com.cn

Apr. 2018 edition V1.0.0

Copyright © LILLIPUT Company. All rights reserved.
The LILLIPUT's products are under the protection of the patent rights, including ones which have

already obtained the patent rights and those which are applied for. The information in this manual will
replace all materials published.

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

is the registered trademark of the LILLIPUT Company.

Fujian LILLIPUT Optoele ctr onics Technology Co., Ltd.

No. 19, Heming Road
Lantian Industrial Zone, Zhangzhou 363005 P.R. China

Tel: [phone] Fax: [phone]
Web:

www.owon.com.cn E-mail: [e-mail]

General W arranty

OWON warrants that the product will be free from defects in materials an d workmanshi p
for a period of 3 years from the date of purchase of the product by the original purchaser
from the OWON Company. The warranty period for accessories such as probes is 12
months. This warranty only applies to the original purchaser and is not transfe rable to a
third party.

If the product proves defective during the warranty period, OWON will either repair t he
defective product without charge for parts and labour, or will provide a replacement in
exchange for the defective product. Parts, modules and replacement products used by
OWON for warranty work may be new or reconditioned like new. All replaced parts,
modules and products become the property of OWON.

In order to obtain service under this warranty, the customer must notify OWON of the
defect before the expiration of the warranty period. Customer shall be responsible for
packaging and shipping the defective product to OWON's designated service centre, a
copy of the customers proof of purchase is also required.

This warranty shall not apply to any defect, failure or damage caused by improper use or
improper or inadequate maintenance and care. OWON shall not be obligated to furnish
service under this warran t y a) to repai r dam age r esul tin g from attem pts by perso nnel other
than OWON representatives to install, repair or service the product; b) to repair dam age
resulting from improper use or connection to incompatible equipment; c) to repair any
damage or malfunction caused by the use of non-OWON 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 near est OWON's Sales and Service Offic es for services or a complet e
copy of the warranty statement.

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

Excepting the after-sales services provided in this summary or the applicable warranty
statements, OWON 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. OWON 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. Junior User Guidebook ................................................................................................... 4

Introduction to the Structure of the Oscilloscope ..................................................................... 5

Front Panel ............................................................................................................................................... 5

Front Panel Menu Buttons ........................................................................................................................ 6

Rear Panel ................................................................................................................................................ 6

Control Area ............................................................................................................................................. 7

User Interface Introduction ........................................................................................................ 8

How to Implement the General Inspection ............................................................................. 10

How to Implement the Function Inspection ............................................................................ 10

How to Implement the Probe Compensation .......................................................................... 11

How to Set the Probe Attenuation Coefficient ........................................................................ 12

How to Use the Probe Safely..................................................................................................... 13

How to Implement Self-calibration .......................................................................................... 13

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

Introduction to the Horizontal System .................................................................................... 15

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

4. Advanced User Guidebook ............................................................................................ 17

How to Set the Vertical System ................................................................................................ 18

Use Mathematical Manipulation Function ............................................................................. 20

Waveform math ...................................................................................................................................... 21

User defined function ............................................................................................................................. 22

Digital Filter ........................................................................................................................................... 22

Using FFT function ................................................................................................................................ 22

Use Vertical Position and Scale Knobs .................................................................................... 25

How to Set the Horizontal System ........................................................................................... 25

Zoom the Waveform .............................................................................................................................. 26

How to Set the Trigger/Decoding System ................................................................................ 26

Single Trigger ......................................................................................................................................... 27

Alternate Trigger (Trigger mode: Edge) ................................................................................................ 35

Logic Trigge r.......................................................................................................................................... 35

Bus Trigger ............................................................................................................................................. 36

Bus Decoding ......................................................................................................................................... 42

How to Operate the Function Menu ........................................................................................ 46

How to Implement Sampling Setup ....................................................................................................... 46

How to Set the Display System .............................................................................................................. 48

ii

How to Save and Recall a Waveform ..................................................................................................... 50

How to Record/Playback Waveforms .................................................................................................... 57

How to Clone a waveform ...................................................................................................................... 61

How to Implement the Auxiliary System Function S etting .................................................................... 63

How to Update your Instrument Firmware............................................................................................. 67

How to Measure Automatically.............................................................................................................. 68

How to Measure with Cursors ................................................................................................................ 72

How to Use Autoscale ............................................................................................................................ 75

How to Use Built-in Help ....................................................................................................................... 77

How to Use E xecutive Button s ............................................................................................................... 77

How to Print the Screen Image ............................................................................................................... 79

5. Communication with PC ............................................................................................... 80

Using USB Port .......................................................................................................................... 80

Using LAN Port ......................................................................................................................... 81

Connect directly ..................................................................................................................................... 81

Connect through a router ........................................................................................................................ 82

6. Demonstration ............................................................................................................... 85

Example 1: Measurement a Simple Signal .............................................................................. 85

Example 2: Gain of a Amplifier in a Metering Circuit .......................................................... 86

Example 3: Capturing a Single Signal ..................................................................................... 87

Example 4: Analyze the Details of a Signal ............................................................................. 88

Example 5: Application of X-Y Function ................................................................................ 90

Example 6: Video Signal Trigger ............................................................................................. 91

7. Tr oubleshooting ............................................................................................................. 93

8. Technical Specifications ................................................................................................ 94

Trigger .................................................................................................................................................... 96

General Technical Specifications ............................................................................................. 98

9. Appendix ........................................................................................................................ 99

Appendix A: Enclosure ............................................................................................................. 99

Appendix B: General Care and Cleaning ............................................................................... 99

1.General Safety Requirements

1

1. General Safety Requirements

Before use, please read the following safety precautions to avoid any possible bodily
injury and to prevent this product or any other connected products from damage. In
order to avoid any contingent danger, ensure 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.

 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

Protective Earth Terminal

Test Ground

Refer to Manual

Chassis Ground

To avoid bod y 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 not electrically isolated. The channels should
adopt a common ground during measuring. To prevent short circuits, the 2 probe

2.Safety Terms and Symbols

3

Ground Clip

Signal Input

Oscilloscope

Electrical Outlet

Probe

Power Cord

Warning:

To avoid fire or electrical shock
connected

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

4800VA

not apply input voltages above the rating of the instrument

because the probe tip voltage will directly transmit to the

grounds must not be connected to 2 different non-isolated DC levels.
The diagram of the oscilloscope ground wire connection:

It is not allowed to measure AC power when the oscilloscope is AC powered.

, when the oscilloscope input signal

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.
 Do

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.

3.Junior User Guidebook

4

3. Junior User Guidebook

This chapter deals with the following topics mainly:

 Introducti on to th e str uct ure of the os ci ll os co pe
 Introducti on to th e u ser interface
 How to implem ent the general inspection
 How to implement the function inspection
 How to make a probe com pensation
 How to set the probe att en ua ti on co eff ic ie n t
 How to use the probe safely
 How to implement an auto-calibration
 Introducti on to th e ver tic al system
 Introducti on to th e ho riz on ta l sy stem
 Introducti on to th e tri gg er syste m

3.Junior User Guidebook

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4

6

1

Introduction to the Structure of the Oscilloscope

This chapter makes a simple description of the operation and function of the front panel of
the oscilloscope, enabling you to be familiar with the use of the oscilloscope in the
shortest time.

Front Panel

The front panel has knob s and function buttons. The 5 buttons in the column on the right
side of the display screen or in the row under the display screen are menu selection
buttons, through which, you can set the different options for the current menu. The other
buttons are function buttons, through which, you can enter different function menus or
obtain a specific function application directly.

Figure 3-1 Front panel

1. Display area

2. Control (button and knob) area

3. Probe Compensation: Measurement signal (5V/1kHz) output.

4. EXT Trigger Input

5. Signal Input Channel

6. Copy button: You can save the waveform by just pressing this button in any user

interface.

7. USB Host port: It is used to transfer data when external USB equipment connects to

the oscilloscope r e gard ed as "host device". For exampl e: Saving th e wavefo rm to USB
flash disk needs to use this port.

3.Junior User Guidebook

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Select the right menu item

Select the bottom menu item

Remove the left and right menu

9

8

7 6

11

1

2

5

3
4

10

8. Power on/off

Backlight of this button:

Red light: The oscilloscope is turned off (connects with AC Power);
Green light: The oscilloscope is turned on (powered by AC Power).

Front Panel Menu Buttons

Figure 3-2 Menu Buttons

Rear Panel

Figure 3-3 Rear Panel

1. Handle

2. Air vents

3. AC power input jack

4. Fuse

5. Foot stool: Adjust the tilt angle of the oscilloscope.

6. VGA port: To connect the oscilloscope with a monit or or a projector as VGA output

(optional).

7. LAN port: the network port which can be used to connect with PC.

3.Junior User Guidebook

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6

1

2

3

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10

5

4

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8. USB Device port: It is used to transfer data when ex t ernal US B equi pm ent con nect s t o

the oscilloscope regarded as "slave device". For example: to use this port when
connect PC to the oscilloscope by USB.

9. Lock Hole: You can lock the oscilloscope to a fixed location using the security lock

(please buy it yourself) to secure the oscilloscope.

10. AV Port: AV signal output port (optional).

11. Trig Out(P/F) port: Trigger signal output or Pass/Fail output.

Control Area

Figure 3-4 Control Are a Overview

1. Function button area: Total 11 buttons

2. DAQ: Multimeter Recorder (This function is not available in XDS2000 series.)

P/F: Pass/Fail
W.REC: Waveform Record

3. Trigger control area with 2 buttons and 1 knob.

The Trigger Level knob is to adjust trigger voltage. Other 2 buttons refer to trigger
system setting.

4. Horizontal control area with 1 button and 2 knobs.

"HOR" button refer to horizontal system setting menu, "Horizontal Position" knob
control trigger position, "Horizontal Scale" control time base.

5. Vertical control area with 3 buttons and 4 knobs.

"CH1" and "CH2 " correspond to setting menu in CH1 and CH2, "Math" button 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. T wo "Vertical Position" knob
control the vertical position of CH1/CH2, and two "Scale" knob control voltage scale
of CH1, CH2.

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1

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10

23

20

6

7

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9

12

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16

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18

22

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6. Default: Call out the factory settings.

7. Print

8. Turn on/off Decode function.

9. Snapshot

10. Direction key: Move the cursor of the focused parameter.

11. M knob (Multipurpose knob): when a symbol appears in the menu, it indicates

you can turn the M knob to select the menu or set the value. You can push it to close
the menu on the left and right.

User Interface Introduction

1. Waveform Display Area.

2. Run/Stop

3. The state of trigger, including:

Auto: Automatic mode and acquire waveform without triggering.
Trig: Trigger detected and acquire waveform.
Ready: Pre-triggered data captured and ready for a trigger.
Scan: Capture and display the waveform continuously.
Stop: Data acquisition stopped.

4. The two blue dotted lines indicates the vertical position of cursor measurement.

Figure 3-5 Illustrative Drawing of Display Interfaces

3.Junior User Guidebook

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5. The T pointer indicates the horizontal position for the trigger.

6. The pointer indicates the trigger position in the record length.

7. It shows present triggering value and displays the site of present window in

internal memory.

8. It shows setting time.

9. It indicates that there is a USB disk connecting with the oscilloscope.

10. The pointer shows the trigger level position.

11. The waveform of CH1.

12. The two blue dotted lines indicate the horizontal position of cursor measurement.

13. The waveform of CH2.

14. It indicates the measured type and value of the corresponding channel. "T" means

period, "F" means frequency, "V" means the average value, "Vp" the peak-peak
value, "Vr" the root-mean-square value, "Ma" the maximum amplitude value,
"Mi" the minimum amplitude value, "Vt" the Voltage value of the waveform's
flat top value, "Vb" the Voltage value of the waveform's flat base, "Va" the
amplitude value, "Os" the overshoot value, "Ps" the Preshoot value, "RT" the rise
time value, "FT" the fall time value, "PW" the +width value, "NW" the -Width
value, "+D" the +Duty value, "-D" the -Duty value, "PD" the Delay A->B
value, "ND" the Delay A->B value, "TR" the Cycle RMS, "CR" the Cursor
RMS, "WP" the Screen Duty, "RP" the Phase, "+PC" the +Pulse count, "-PC"
the - Pulse count, "+E" the Rise edge count, "-E" the Fall edge count, "AR" the
Area, "CA" the Cycle area.

15. The icon shows the selected trigger type, e.g. represents triggering on the

rising e dge for an Edge trigger. The reading shows the trigger level value of the
corresponding channel.

16. Channel identifier of current bottom menu.

17. The readings show the record length.

18. The frequency of the trigger signal.

19. The readings show current sample rate.

20. The readings indicate the corresponding Voltage Division and the Zero Point

positions of the channels. "BW" indicates bandwidth limit.

The icon shows the coupling mode of the channel.

"—" indicates direct current coupling

"～" indicates AC coupling

" " indicates GND coupling

21. The reading shows the setting of main time base.

22. It is cursor measure window, showing the absolute values and the readings of the

cursors.

23. The blue pointer shows the grounding datum point (zero point position) of the

waveform of the C H2 channel. If the pointer is not displayed, it means that this
channel is not opened.

24. The yellow pointer indicates the grounding datum point (zero point position) of

3.Junior User Guidebook

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

How to Implement the General Inspection

After you get a new 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 already described in the "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 dam a ged , pl ease get
in touch with the distributor of OWON responsible for this service or the OWON'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 OWON's distributor responsible for this business or the OWON's local
offices. If there i s damag e to the inst rument caus ed by the t ransportat ion, pl ease keep
the package. With the transportation department or the OWON's distributor
responsible for this business informed about it, a repairing or replacement of the
instrument will be arranged by the OWON.

How to Implement the Function Inspection

Make a fast funct ion check to verif y the normal operation of the instrument, according to
the following steps:

1. Connect the po wer cord to a power source. Long press the
bottom left of the instrument.

The instrument carries out all self-check items and shows the Boot Logo. Push the
Utility button, select Function in the bottom menu. Select Adjust in the left menu,
select Default in the bottom menu. The default att enuati on coe fficient set val ue of th e
probe in the menu is 10X.

button on the

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

3.Junior User Guidebook

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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. Push the Autoset Button on the front panel.

The square wave of 1 KHz frequency and 5V peak-peak value will be displayed in
several seconds (see Figure 3-6).

Figure 3-6 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 (see "How to Set the Probe Attenuation Coefficient" on P12), and
connect the 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 push the Autoset button on the front
panel.

2. Check the displayed waveforms and regulate the probe till a correct compensation is

achieved (see Figure 3-7 and Figure 3-8).

3.Junior User Guidebook

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Caution:

in the

Overcompensated Compensated correctly Under compensated

Figure 3-7 Displayed Waveforms of the Probe Compensation

3. Repeat the steps mentioned if needed.

Figure 3-8 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.

To change or check the probe attenuation coefficient in the menu of oscilloscope:
(1) Push the function menu button of the used channels (CH1 or CH2 button).
(2) Select Probe in the bottom menu; select Attenu in the right menu, turn the M knob to

select the proper value corresponding to the probe.

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

The default attenuation coefficient of the probe on the instrument is preset to
10X.
Make sure that the set value of the attenuation switch in the probe is the
same as the menu selection of the probe attenuation coefficient
oscilloscope.

The set values of the probe switch are 1X and 10X (see Figure 3-9).

3.Junior User Guidebook

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Caution:

connect the probe to the

Figure 3-9 Attenuation Switch

When the attenuation switch is set to 1X, the probe will limit the bandwidth
of the oscilloscope in 5MHz. To us e the full bandwidth of the oscilloscope,
the switch must be set to 10X.

Identify the Probe Attenuation Coefficient Automatica lly

The oscilloscope can identify the probe attenuation coefficient of the 100:1 (impedance
5K±20%) or 10:1 (impedance 10K±20%) probe with the identifying pin. When you
attach the probe, the oscilloscope set the attenuation automatically on the oscilloscope
vertical menu for the channel to match the probe.

For example, if you attach a 10:1 probe with the identifying pin, the screen will prompt
"The probe attenuation factor is X10", and set the attenuation to 10X automatically on the
oscilloscope vertical menu for the channel.

How to Use the Probe Safely

The safety guard ring around the probe body protects your finger against any electric
shock, shown as Figure 3-10.

Figure 3-10 Finger Guard

Warning:

To avoid electric shock, always keep your finger behind the safety guard
ring of the probe during the operation.

To protect you from suffering from the electric shock, do not touch any
metal part of the probe tip when it is connected to the power supply.

Before making any measurements, always
instrument and connect the ground terminal to the earth.

How to Implement Self-calibration

The self-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. This program must be executed whenever the change of ambient

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temperature is 5℃ or over.
Before performing a self-calibration, disconnect all probes or wires from the input

connector. Push the Utility button, select Function in the bottom menu, select Adjust. in
the left menu, select Self Cal in the bottom menu; run the program after everything is
ready.

Introduction to the Vertical System

As shown in Figure 3-11, there are a few of buttons and knobs in Vertical Contro ls. The
following practices will gradually direct you to be familiar with the using of the vertical
setting.

Figure 3-11 Vertical Control Zone

1. Use the 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 waveform.

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 betw een the wave
form and the signal ground.

If the channel is under the AC mode, the DC component would be filtered out. This
mode helps you display the AC component of the signal with a higher sensitivity.

Vertical offset back to 0 shortcut key

Turn the Vertical Position knob to change the vertical display position of channel
and push the position knob to set the vertical display position back to 0 as a shortcut
key, this is especially helpful when the trace position is far out of the screen and w ant
it to get back to the screen center immediately.

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

3.Junior User Guidebook

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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.

 Turn the Vertical Scale 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.

 Push buttons of CH1, CH2 and Math, the operation menu, symbols, waveforms

and scale factor status information of the corresponding channel will be displayed
in the screen.

Introduction to the Horizontal System

Shown as Figure 3-12, 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.

Figure 3-12 Horiz ontal Cont rol Zone

1. Turn the Horizontal Scale knob to change the horizontal time base setting and

observe the consequent status information change. Turn the Ho rizontal Scale knob to
change the horizontal time base, and it can be found that the Horizontal Time Base
display in the status bar changes accordingly.

2. Use the 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 waveform moves horizontally
with the knob when you rotate the Horizontal Position knob.

Triggering displacement back to 0 shortcut key

Turn the Horizontal Position knob to change the horizontal position of channel and
push the Horizontal Position knob to set the triggering displacement back to 0 as a
shortcut key.

3. Push the Horizontal HOR button to switch between the normal mode and the wave

3.Junior User Guidebook

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zoom mode.

Introduction to the Trigger System

As shown in Figure 3-13, there are one knob and three buttons make up Trigger Controls.
The following practices will direct you to be familiar with the setting of the trigger system
gradually.

Figure 3-13 Trigger Control Zone

1. Push the T rigger Menu button and call out the trigger menu. With the operations of

the menu selection buttons, the trigger setting can be changed.

2. Use the Trigger Level knob to change the trigger level setting.

By turning the Trigger Lev el knob, the trigger i ndicator in the screen will move up
and down. With the movement of the trigger indicator, it can be observed that the
trigger level value displayed in the screen changes accordingly.

Note: Turning the Trigger Level knob can change trigger lev el value and it is als o
the hotkey to set trigger level as the vertical mid point values of the amplitude of the
trigger signal.

3. Push the Force button to force a trigger signal, which is mainly applied to the

"Normal" and "Single" trigger modes.

4.Advanced User Guidebook

17

4. Advanced User Guidebook

Up till now, you have already been familiar with the basic operations of the function areas,
buttons and knobs in the front panel of the oscilloscope. Based the introduction of the
previous Chapter, the user should have an initial 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 3 "Junior User Guidebook".

This chapter will deal with the following topics mainly:

 How to Set the Vertical System
 How to Set the Horizontal System
 How to Set the Trigger/Decoding System
 How to Implement the Sampling Setup
 How to Set the Display System
 How to Save and Recall Waveform
 How to Record/Playback Waveforms
 How to Clone a waveform
 How to Implement the Auxiliary System Function Setting
 How to Update your Instrument Firmware
 How to Measure Automatically
 How to Measure with Cursors
 How to Use Autoscale
 How to Use Built-in Help
 How to Use Executive Buttons
 How to Print the Screen Image

It is recommended that you read this chapter carefully to get acquainted the various
measurement functions and other operation methods of the oscilloscope.

4.Advanced User Guidebook

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Function
Menu

Setting

Description

DC

GROUND

Pass both AC and DC components of the input signal.

Disconnect the input signal.

ON
OFF

Display inverted waveform.
Display original waveform.

Turn the M knob to set the Amps/Volts ratio. The

Volts/Amp ratio is automatically calculated.

Full band

Get full bandwidth.
Limit the channel bandwidth to 20MHz to reduce

How to Set the Vertical System

The VERTICAL CONTROLS includes three menu buttons such as CH1, CH2 and
Math, and four knobs such as Vertical Position, Vertical Scale for each channel.

Setting of CH1 and CH2

Each chann el has an indep endent verti cal men u and each item is set res pect ively bas ed on
the channel.

To turn waveform s on or off (ch ann e l, math)

Pushing the CH1, CH2, or Math buttons have the following effect:

• If the waveform is off, the waveform is turned on and its menu is displayed.

• If the waveform is on and its menu is not displayed, its menu will be displayed.

• If the waveform is on and its menu is displayed, the waveform is turned off and its menu

goes away.

The description of the Channel Menu is shown as the following list:

Coupling

Inverted

Probe

Limit

1. To set channel coupling

AC

Attenu

MeasCurr

A/V (mA/V)
V/A (mV/A)

20M

0.001X
to
1000X

YES
NO

Block the DC component of the input signal.

Step by 1 – 2 – 5. Match this to the probe attenuation
factor to have an accurate reading of vertical scale.

If you are measuring current by probing the voltage
drop across a resistor, choose YES.

range is 100 mA/V - 1 KA/V.
Amps/Volts ratio = 1/Resistor value

display noise.

Taking the Channel 1 for example, the measured signal is a square wave signal containing
the direct current bias. The operation steps are shown as below:

(1) Push the CH1 button to show the CH1 SETUP menu.
(2) Select Coupling in the bottom menu.

4.Advanced User Guidebook

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(3) Select DC in the right menu. Both DC and AC components of the signal are passed.
(4) Select AC in the right menu. The direct current component of the signal is blocked.

2. To adjust the probe attenuation

For correct measurem ent s, the attenuation coeffi cien t settings in the operating menu of the
Channel should always match what is on the probe (see "How to Set the Probe Attenuation
Coefficient" on P12). If the attenuation coefficient of the probe is 1:1, the menu setting of
the input channel should be set to X1.

Take the Channel 1 as an example, the attenuation coefficient of the probe is 10:1, the
operation steps are shown as follows:

(1) Push the CH1 button to show the CH1 SETUP menu.
(2) Select Probe in the bottom menu. Select Attenu in the right menu, turn the M knob to

set it as 10×.

3. To measure current by probing the voltage drop across a resistor

Take the Channel 1 as an examp le, if you are measuring current by probing the voltage
drop across a 1Ω resistor, the operation steps are shown as follows:

(1) Push the CH1 button to show CH1 SETUP menu.
(2) Select Probe in the bottom menu. In the right menu, set MeasCurr as YES, the A/V

radio menu will appear below. Select it; turn the M knob to set the Amps/Volts ratio.
Amps/Volts ratio = 1/Resistor value. Here the A/V radio should be set to 1.

4. To invert a waveform

Waveform inverted: the displayed signal is turned 180 degrees against the phase of the
earth potential.

Taking the Channel 1 for example, the operation steps are shown as follows:

(1) Push the CH1 button to show the CH1 SETUP menu.
(2) Select Inverted in the bottom menu, switch to ON. the waveform is invert ed. Push

again to switch to OFF, the waveform goes back to its original one.

5. To set bandwidth limit

When high frequency components of a waveform are not important to its analysis, the
bandwidth limit control can be used to reject frequencies above 20 MHz.

Taking the Channel 1 for example, the operation steps are shown as below:

(1) Push the CH1 button to show CH1 SETUP menu.
(2) Select Limit in the bottom menu.
(3) Select Full band in the right menu. The high frequenc y of the signal will be allowed

to pass.

(4) Select 20M i n the right menu. The bandwidth is limited to 20 MHz. The frequencies

above 20MHz will be rejected.

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Function Menu

Setting

Description

CH1
CH2

CH1
CH2

(div)

the vertical position of the Math

waveform

Vertical

(V/div)

Turn the M knob to adjust the vertical division of the Math
waveform

Switch to select the horizontal position or

M knob to adjust it

Position value

Switch to select the vertical position or

division of the FFT waveform,

turn the M knob to adjust it

User

Function

Use Mathematical Manipulation Function

The Mathematical Manipulation function is used to show the results of the addition,
multiplication, division and subtraction operations between two channels, the FFT
operation for a channel, advanced math feature including Intg, Diff, Sqrt, user defined
function, and digital filter. Press the Math button to display the menu on the bottom.

The Waveform Calculation menu:

Dual Wfm

Math

Factor1

Sign + - * / Select the sign of mathematical manipulation

Factor2

Vertical

Source

Window

Turn the M knob to adjust

CH1

CH2
Hamming
Rectangle
Blackman

Hanning

Kaiser

Select the signal source of the factor1

Select the signal source of the factor2

Select CH1 as FFT source.
Select CH2 as FFT source.

Select window for FFT.

Bartlett

FFT

Format

Hori (Hz)

Vertical

Intg, Diff, Sqrt, and user defined function

V RMS

Decibels

Radian

Degrees

Position value

Time base value/

Division value/

V RMS and Decibels are

time base of the FFT waveform, turn the

vertical

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CH1
CH2

Only the signals whose frequencies are

can pass the filter.

Only the signals whose frequencies are
greater than the current cutoff frequency
can pass the filter.

Only the signals whose frequencies are

and lower than the current cutoff
frequency upper can pass the filter.

Only the signals whose frequencies are
lower than the current cutoff frequency

or greater than the current cutoff

frequency upper can pass the filter.

Retangular

Blackman

cut-off fre

upper down

Vertical

(div)

Turn the M knob to adjust the vertical
position of Math waveform

Enable or disable FFT peak search.

peak.

DIR

channel

type

window

low-pass

high-pass

band-pass

band-reject

Tapered

Triangular

Hanning

Hamming

Select channel

lower than the current cut-off frequency

greater than the cutoff frequency down

down

Select window for digital filter

Turn the M knob to set cut-off frequency

Dynamic marker ▽ marks the FFT

FFT Peak

or

ON

OFF

Waveform math

Taking the additive operation between Channel 1 and Channels 2 for example, the
operation steps are as follows:

1. Press the Math button to display the math menu in the bottom. The pink M wavefor m

appears on the screen.

2. Select Dual Wfm Math in the bottom menu.

3. In the right menu, select Factor1 as CH1.

4. Select Sign as + in the right menu.

5. In the right menu, select Factor2 as CH2.

6. Select Vertical (div) in the right menu, turn the M knob to adjust the vertical position

of Math waveform.

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Channel

Confirm

Clear

Operators

Integral

Differential

Square root

Expression

7. Select Vertical (V/div) in the right menu, turn the M knob to adjust the vertical division

of Math waveform.

User defined function

1. Press the Math button to display the math menu in the bottom.

2. Select User Function in the bottom menu, an expression input keyboard pops up.

3. Create an expression. When done, choose

in the keyboard to confirm

division of Math waveform is displayed at the left bottom of screen.

. The

Digital Filter

Digital filter provides 4 types of filters (low pass, high pass, band pass and band reject).
The specified frequencies can be filtered by setting the cut-off frequenc y.

1. Press the Math button to display the math menu in the bottom.

2. Select DIR in the bottom menu.

3. In the right menu, select channel as CH1 or CH2.

4. In the right menu, select type, select the desired filter type.

5. In the right menu, select window, select the desired window.

6. When low-pass or high-pass type is selected, select cut-off fre in the right menu.

When band-pass or band-reject type is selected, select upper or down in the right
menu. Turn M knob to adjust the frequency.

7. In the right menu, select Vertical (d iv), turn M knob to adjust the vertical position of

Math waveform. The voltage division of Math waveform is the same as the selected
channel.

Note: On the Scan format, digital filter is disabled.

Using FFT function

The FFT (fast Fourier transform) math function mathematically converts a time-domain
waveform into its frequency components. It is very useful for analyzing the input signal on
Oscilloscope. You can match these frequencies with known system frequencies, such as
system clocks, oscillators, or power supplies.

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It has slightly better

Transients or bursts where the signal levels
before and after the event are significantly

FFT function in this oscilloscope transforms 8192 data points of the time-domain signal
into its frequency components mathematically (the record length should be 10K or abov e).
The final frequency contains 4096 points ranging from 0Hz to Nyquist frequency.

Taking the FFT operation for example, the operation steps are as follows:

1. Press the Math button to display the math menu in the bottom.

2. Select FFT in the bottom menu.

3. In the right menu, select Source as CH1.

4. In the right menu, select Window. In the left menu, turn the M knob to select the

proper window type.

5. In the right menu, select Format. In the left menu, turn the M knob to select

amplitude unit (V RMS, Decibels) or phase unit (Radian, Degrees).

6. Select Hori (Hz) in the r ight menu; select repeatedly to make the symbol in front

of the horizontal position value (the upper one), turn the M knob to adjust the
horizontal position of FFT waveform; then select to make the symbol in front of
the time base value below, turn the M knob to adjust the time base of FFT waveform.

7. Select Vertical in the right menu; do the same operations as above to set the vertical

position and vertical division.

To select the FFT window

■ There are 6 FFT windows. Each one has trade-offs between frequency resolution and
magnitude accuracy. What you want to measure and your source signal characteristics
help you to determine which window to use. Use the following guidelines to select the
best window.

Type Characteristics Window

Better solution for magnitude than Rectangle, and
good for frequency as well.
frequency resolution than Hanning.

Recommend to use for:

Hamming

 Sine, periodic and narrow band random noise.


different.

4.Advanced User Guidebook

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repetitive signals and measuring frequency

Transients or bursts where the signal levels
before and after the event are significantly

The frequency resolution when using the Kaiser

The Bartlett window is a slightly narrower variant

Best solution for frequency, worst for magnitude.
Best type for measuri ng the frequency spect rum of

non
components near DC.

Recommend to use for:

Rectangle

Blackman

Hanning

 Transients o r burs ts, the signal level bef ore and

after the event are nearly equal.

 Equal-amplitude sine waves with frequencies

those are very close.

 Broadband random noise with a relatively slow

varying spectrum.
Best solution for magnitude, worst for frequency.
Recommend to use for:

 Single frequency waveforms, to find higher

order harmonics.
Good for magnitude, but poorer frequency

resolution than Hamming.
Recommend to use for:

 Sine, periodic and narrow band random noise.


different.

window is fair; the spectral leakage and amplitude
accuracy are both good.

Kaiser

The Kaiser window is best used when frequencies
are very close to the same value but have widely
differing amplitudes (the side lobe level and shape
factor are closest to the traditional Gaussian RBW ).
This window is also good for random signals.

Bartlett

of the triangular window, with zero weight at both
ends.

Notes for using FFT

 Use the default dB scale for details of multiple frequencies, even if they have very

different amplitudes. Use the Vrms scale to compare frequencies.

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 DC component or offset can cause incorrect magnitude values of FFT waveform. To

minimize the DC component, choose AC Coupling on the source signal.

 To reduce r andom noise and aliased components in repetitive or single-sho t events, set

the oscilloscope acquisition mode to average.

What is Nyquist freque nc y?

The Nyquist frequ ency is the highes t frequency that any real-time digitizing oscilloscope
can acquire without aliasing. This frequency is half of the sample rate. Frequencies above
the Nyquist frequency will be under sampled, which causes aliasing. So pay more
attention to the relation between the frequency being sampled and measured.

Use Vertical Position and Scale Knobs

1. The Vertical Position knob is used to adjust the vertical positions of the

waveforms.
The analytic resolution of this control knob changes with the vertical division.

2. The Vertical Scale knob is used to regulate the vertical resolution of t he wave

forms. The sensitivity of the vertical division steps as 1-2-5.

The vertical position and vertical resolution is displ ayed at the left bottom corner of
the screen (see Figure 4-1).

Figure 4-1 Information about Vertical Position

How to Set the Horizontal System

The HORIZONTAL CONTROLS includes the Horizontal HOR button and such
knobs as Horizontal Position and Horizontal Scale.

1. Horizontal Position knob: this knob is used to adjust the horizontal positions of

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Main Window

Time base of

Zoom window

Selected portion

Horizontal position of
Zoom window

Zoom Window

all channels (include those obtained from the mathematical manipulation), the
analytic resolution of which changes with the time base.

2. Horizontal Scale knob: it is used to set the horizontal scale factor for setting the

main time base or the window.

3. Horizontal HOR button: push it to switch between the normal mode and the

wave zoom mode. For more detailed operations, see the introductions below.

Zoom the Waveform

Push the Horizontal HOR button to enter wave zoom mode. The top half of the
display shows the Main window and the bottom half displays the Zoom window. The
Zoom window is a magnified portion of the Main window.

In normal mode, the Horizontal Position and Horizontal Scale knobs are used to
adjust the horizontal position and time base of the Main window.
In wave zoom mode, the Horizontal Position and Horizontal Scale knobs are used
to adjust the horizontal position and time base of the Zoom window.

How to Set the Trigger/Decoding System

Trigger determines when DSO starts to acquire data and display wav efo rm . O nce
trigger is set correctly, it can convert the unstable display to meaningful
waveform.
When DSO starts to acq uire data, it will collect enough data to draw waveform
on left of trigger point. DSO continues to acquire data while waiting for trigger
condition to occur. Once it detects a trigger it will acquire enough data
continuously to draw the waveform on right of trigger point.
Trigger control area consists of 1 knob and 2 menu buttons.
Trigger Level: The knob that set the trigger level; push the knob and the level

4.Advanced User Guidebook

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will be set as the vertical mid point values of the amplit ude of the trigger
signal.

Force: Force to create a trigger signal and the function is mainly used in

"Normal" and "Single" mode.

Trigger Menu: The button that activates the trigger control menu.

Trigger Control

The oscilloscope provides four trigger types: single trigger, altern ate trigger, logic
trigger and bus trigger. Each type of trigger has different sub menus.

Two ways to enter trigger mode:

Key operation: Press Trigger Menu panel button, then bottom menu Trigger Type,

select Single, ALT, Logic or Bus Trigger on the popup right
menus, rotate M knob to choose different trigger types.

Single trigger: Use a trigger level to capture stable waveforms in two channels

simultaneously.

Alternate trigger: Trigger on non-synchronized signals.
Logic trigger: Trigger the signal according to the condition of logic relationship.
Bus trigger: Set bus timing trigger.

The Single Trigger, Alternate Trigger, Logic Trigger and Bus Trigger menus
are described respecti vel y as follo ws:

Single Trigger

Single trigger has eight types: edge trigger, video trigger, slope trigger, pulse trigger,
runt trigger, windows trigger, timeout trigger and Nth edge trigger.

Edge Trigger: It occurs when the trigger input passes through a specified voltage

level with the specified slope.

Video Trigger: Tri gger on fields or lines for standard video signal.
Slope Trigger: The oscilloscope begins to trigger according to the signal rising or

falling speed.

Pulse Trigger: Find pulses with certain widths.
Runt Trigger: Trigger pulses that pass through one trigger level but fail to pass

through the other trigger level.

Windows Trigger: Provide a high trigger level and l ow tri gger level, the oscill oscope

triggers when the input signal passes through the high trigger level or
the low trigger level.

Timeout Trigger: The oscilloscope triggers when the time interval from when the

rising edge (or the falling edge) passes through the trigger level to
when the neighbouring falling edge (or the rising edge) passes

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Menu

Settings

Instruction

Single Mode

Edge

Set vertical channel trigger type as edge trigger.

CH1

AC Line

Channel 1 as trigger signal.

AC power line as trigger signal.

AC

Block the direct current component.

component pass. (LF menu is only for certain models)

Trigger on rising ed ge
Trigger on falling edge

Auto

Reset

Acquire waveform even no trigger occurs

knob to set time interval

Set Holdoff time as default value (100 ns).

through the trigger level is greater than the timeout time set.

Nth Edge Trigger: The oscilloscope triggers on the Nth edge that appears on the

specified idle time.

The eight trigger modes in Single Trigger are described respectively as follows:

1. Edge Trigger

An edge trigger occurs on trigger level value of the specified edge of input signal.
Select Edge trigger mode to trigger on rising edge or falling edge.
In Edge Trigger mode, the tri gger setting information is displayed on bottom right of

the screen, for example, ，indicates that trigger type is edge,
trigger source is CH1, coupling is DC, and trigger level is 0.00mV.

Edge menu list:

Source

Coupling

Slope

Mode

Holdoff

CH2
EXT
EXT/5

DC
HF

LF

Normal
Single
Holdoff

Channel 2 as trigger signal.
External trigger as trigger signal
1/5 of the external trigger signal as trigger signal.

Allow all component pass.
Block the high-frequency signal, only low-frequency
component pass.
Block the low-frequency signal, only high-frequency

Acquire waveform when trigger occurs
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, turn the M
before another trigger occur, press panel
button to move cursor to choose which digit to be set.

Trigger Level: trigger level indicates vertical trig position of the channel, rotate trig
level knob upward and downward to move trigger level, during setting, an oran ge red
dotted line displays to show trig position, and the value of trigger level changes at the
right corner, after setting, dotted line disappears.

2. Video Trigger

Choose video trigger to trigger on fields or lines of NTSC, PAL or SECAM standard
video signals.

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MENU

SETTING

INSTRUCTION

Single Mode

Video

Set vertical channel trigger type as video trigger

CH1
CH2

Select CH1 as the trigger source
Select CH2 as the trigger source

NTSC

SECAM

Line

Synchronic trigger in video line

knob to set the line number

Mode

Holdoff

MENU

SETTING

INSTRUCTION

Single

Mode

CH1
CH2

Select CH1 as the trigger source.
Select CH2 as the trigger source.

slope

knob to set slope

In Video Trigger mode, the trigger setting information is displayed on bottom right of
the screen, for exam ple, ，indicates that trigger typ e is Video, trigger

source is CH1, and Sync type is Even.

Video Trigger menu list:

Source

Modu

Sync

PAL

Field

Odd

Even

Line NO.

Select video modulation

Synchronic trigger in video field
Synchronic trigger in video odd filed
Synchronic trigger in video even field
Synchronic trigger in designed video line, turn the M

Auto Acquire waveform even no trigger occurred

3. Slope Trigger

Slope trigger sets the oscilloscope as the positive/negative slope trigger within the
specified time.
In Slope Trigger mode, the trigger setting information is displayed on bottom right of

the screen, for exam ple, ，indicates that trigger type is slope,
trigger source is CH1, slope is rising, 0.00mV is the differential between up level and

low level threshold.

Slope trigger menu list:

Slope Set vertical channel trigger type as slope trigger.

Source

When

Slope selecting

Set slope condition; turn the M
time, press panel button to move cursor to
choose which digit to be set.

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High level

Slew rate

Adjust M knob to set the High level upper limit.

Slew rate = (High level - Low level) / Settings

Auto

Reset

Acquire waveform even no trigger occurred

Set Holdoff time as 100 ns

MENU

SETTING

INSTRUCTION

Set vertical channel trigger type as pulse trigger.

CH1
CH2

Select CH1 as the trigger source.
Select CH2 as the trigger source.

AC
DC

Not allow DC portion to pass.
Allow all portion pass.

Polarity

Auto

Reset

Acquire waveform even no trigger occurred

Set Holdoff time as 100 ns

Threshold

&SlewRate

Mode

Holdoff

Low level

Normal

Single

Holdoff

Adjust M knob to set Low level lower limit.

Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns – 10 s, turn the M knob to set time interval
before another trigger occur, press panel
button to move cursor to choose which digit to be set.

4. Pulse Width Trigger

Pulse trigger occurs according to the width of pulse. The abnormal signals can be
detected through setting up the pulse width condition.

In Pulse Width Trigger mode, the trigger setting information is displayed on bottom
right of the screen, for example, ，indicates that trigger type

is pulse width, trigger source is CH1, coupling is DC, polarity is positive, and trigger
level is 0.00mV.

Pulse Widt h Trigger menu list:

Single Mode Pulse

Source

Coupling

when

Normal

Mode

Holdoff

Single

Holdoff

Choose the polarity

Select pulse width condition and adjust the M knob
to set time, press panel button to move
cursor to choose which digit to be set.

Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob to set time interval
before another trigger occur, press panel
button to move cursor to choose which digit to be set.

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MENU

SETTING

INSTRUCTION

Single

Mode

Set vertical channel trigger type as runt trigger.

CH1
CH2

Select CH1 as the trigger source.
Select CH2 as the trigger source.

Up Level

Low Level

Adjust the M knob to set the up level threshold.
Adjust the M knob to set the low level threshold.

Positive Polarity, the oscilloscope triggers on the

negative runt pulse.

5.Runt Trigger

Trigger pulses that pass through one trigger level but fail to pass through the other
trigger level. Shown as below figure,
In Runt Trigger mode, the trigger setting information is displayed on bottom right of

the screen, for example, ，indicates that trigger type is runt,
trigger source is CH1, polarity is positive, 0.00mV is the differential between up level

and low level threshold.

Runt Trigger

Runt Trigger menu list:

Runt

Source

Threshold

Polarity

Condition

positive runt pulse.
Negative Polarity, the oscilloscope triggers on the

Adjust the M knob to set pulse width, press
panel button to move cursor to choose which digit to be
set.
Trigger when runt pulse is greater than the set pulse
width.
Trigger when runt pulse equals to the set pulse width.
Trigger when runt pulse is lower than the set pulse
width.

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Auto

Reset

Acquire waveform even no trigger occurred

Set Holdoff time as 100 ns

MENU

SETTING

INSTRUCTION

Single

Mode

Set vertical channel trigger type as Windows trigger.

CH1
CH2

Select CH1 as the trigger source.
Select CH2 as the trigger source.

Up Level

Low Level

Adjust the M knob to set the up level threshold.
Adjust the M knob to set the low level threshold.

Positive Polarity, the oscilloscope triggers on the

negative Windows pulse.

Enter: Triggers when the trigger signal enters the

Exit: Triggers when the trigger signal exits the

Time: Specify the hold time of the input signal after
entering the specified trigger level. The oscilloscope
triggers when the accumulated hold time is greater than

Mode

Holdoff

Normal

Single

Holdoff

Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob to set time interval before

another trigger occur， press panel button to
move cursor to choose which digit to be set.

6.Windows Trigger

Provide a high trigger level and low trigger level, the oscilloscope triggers when the
input signal passes through the high trigger level or the low trigger level.
In Windows Trigger mode, the trigger setting information is displayed on bottom right

of the screen, for example, ，indicates that trigger type is
windows, trigger source is CH1, polarity is positive, 0.00mV the differential between

up level and low level threshold.

Windows Trigger menu list:

Windows

Source

Threshold

Polarity

Condition

positive Windows pulse.
Negative Polarity, the oscilloscope triggers on the

specified trigger level range.

specified trigger level range.

the windows time. Available range is 30ns-10s, default
100ns.

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Auto

Reset

Acquire waveform even no trigger occurred

Set Holdoff time as 100 ns

MENU

SETTING

INSTRUCTION

Single

Mode

Set vertical channel trigger type as Timeout trigger.

CH1
CH2

Select CH1 as the trigger source.
Select CH2 as the trigger source.

Edge

Start timing when the rising edge of the input signal

passes through the trigger level.

Set idle time. Idle time means the minimum time of idle
clock before searching data that can meet trigger
conditions. Available range is 30ns-10s, default 100ns.

Auto

Reset

Acquire waveform even no trigger occurred

Set Holdoff time as 100 ns

Mode

Holdoff

Normal

Single

Holdoff

Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob to set time interval before
another trigger occur, press panel button to
move cursor to choose which digit to be set.

7.Time out Trigger

The oscilloscope triggers when the time interval from when the rising edge (or the
falling edge) passes through the trigger level to when the neighbouring falling edge
(or the rising edge) passes through the trigger level is greater than the timeout time
set.
In Timeout Trigger mode, the trigger setting information is displayed on bottom right

of the screen, for example, ，indicates that trigger type is Timeout,
trigger source is CH1, edge is positive, 0.00mV is up level or low level threshold.

Timeout Tri gg er menu list:

Timeout

Source

Edge

Configure Idle T ime

Normal

Mode

Holdoff

Single

Holdoff

passes through the trigger level.
Start timing when the falling edge of the input signal

Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob to set time interval before
another trigger occur, press panel button
move cursor to choose which digit to be set.

8.Nth Edge trigger

The oscilloscope triggers on the Nth edge that appears on the specified idle time. As
figure shown below, the oscilloscope should trigger on the second falling edge after

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MENU

SETTING

INSTRUCTION

Single

Mode

CH1
CH2

Select CH1 as the trigger source.
Select CH2 as the trigger source.

Edge

Trigger on the rising edge of the input signal when

voltage level meets the specified trigger level.

Set idle time before the edge counting in Nth Edge

to be set. Available range is 30ns-10s, default 100ns.

the specified idle time and the idle time should be set to P1/P2/P3/P4 < Idle Time < M.
Wherein, M, P1, P2, P3 and P4 are positive or negative pulse width participating in
the counting.

In Nth Edge Trigger mode, the trigger setting information is displayed on bottom right
of the screen, for example, ，indicates that trigger type is Nth

Edge, trigger source is CH1, -150V is up level or low level threshold.

Nth Edge Trigger menu list:

Nth Edge Set vertical channel trigger type as Nth Edge trigger.

Source

Edge

Idle T ime

Configure

Edge Num

Nth Edge Trigger

voltage level meets the specified trigger level.
Trigger on the falling edge of the input signal when

Trigger. Adjust M knob to set idle time press

panel button to move cursor to choose which digit

Set the edge number value of “N” in Nth Edge trigger.

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Auto

Reset

Acquire waveform even no trigger occurred

Set Holdoff time as 100 ns

Menu

Settings

Instruction

Alternate Mode

Edge

Set vertical channel trigger type as edge trigger.

CH1
CH2

Channel 1 as trigger signal.
Channel 2 as trigger signal.

AC
DC

Block the direct current component.
Allow all component pass.

Auto

Reset

Acquire waveform even no trigger occurs

Set Holdoff time as default value (100 ns).

MENU

SETTING

INSTRUCTION

Mode

Logic

Set vertical channel trigger type as Log i c trigger.

Mode

Holdoff

Normal

Single

Holdoff

Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob to set time interval before
another trigger occur, press panel button
move cursor to choose which digit to be set.

Alternate Trigger (Trigger mode: Edge)

Trigger signal comes from two vertical channels when alternate trigger is on. This
mode is used to observe two unrelated signals. Trigger mode is edge trigger.

Alternate trigger (Trigger Type: Edge) menu list:

Source

Coupling

Slope

Mode

Holdoff

Holdoff

Trigger on rising ed ge
Trigger on falling edge

100 ns - 10 s, turn the M knob to set time interval
before another trigger occur, press panel
button to move cursor to choose which digit to be
set.

Logic Trigger

Trigger according to logic relation.

In Logic Trigger mode, the trigger setting information is displayed on bottom right of
the screen, for example, ， indicates that

trigger type is Logic, logic mode is AND, CH1 high level and trigger level is 0.00mV,
CH2 high level and trigger level is 0.00mV.

Logic Trigg er menu list:

4.Advanced User Guidebook

36

AND

XOR

Set logic mode as AND.

Set logic mode as XOR.

CH1

Set CH1 as High Level, Low level, high or low level,

at the same time.

Goes True

Trigger when condition turns True from False.

set time

Goes False

Is True >

Is True <

Auto

Reset

Acquire waveform even no trigger occurred

Set Holdoff time as 100 ns

Logic
Mode

Input Mode

Out Mod

OR

XNOR

CH2

Is True =

Set logic mode as OR.
Set logic mode as XNOR.

Rise and Fall.
Set CH2 as High Level, Low level, high or low level,
Rise and Fall.

Note：When input mode of one channel is set as Rise or

Fall, the other channel could not be set as Rise and Fall

Trigger when condition turns False from True.
Trigger when the time of true condition is more than
the set time
Trigger when the time of true condition is lower than
the set time
Trigger when the time of true condition is equal to the

Mode

Holdoff

Normal

Single

Holdoff

Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, adjust M knob to set time interval before
another trigger occur, press panel button
move cursor to choose which digit to be set.

Bus Trigger

1. RS232 Trigger

RS232 is a serial communication mode used in the data transmission between PCs or
between PC and Terminal. A character is transmit ted as a f rame of data wh ich consist
of 1bit start bit, 5-8bits data bits, 1bit check bit and 1-2 stop bits.
In RS232 bus trigger mode, the trigger setting information is displayed on bottom

right of the screen, for example, ，indicates that trigger type
is RS232, CH1 trigger level is 0.00mV.

Format as shown in the figure below,

4.Advanced User Guidebook

37

MENU

SETTING

INSTRUCTION

Sour

ce

CH1

Select CH1 as the trigger source.
Select CH2 as the trigger source.

CH2

Pola

Nor
mal

Select polarity of data transmission as Normal. Select

Inve

rted

Trigger on the start frame of position. After choosing
this condition, press Configure to enter detailed
settings.

Trigger when error frame is detected. After choosing
this condition, press Configure to enter detailed
settings.

Trigger when Chk Error is detected. After choosing
this condition, press Configure to enter detailed
settings.

Trigger on the last bit of the preset data. After
choosing this condition, press Configure to enter
detailed settings.

Common Baud: adjust M knob to choose common

from 50 to 10,000,000.

Stop Bit：Select “1”or ”2”.

from 50 to 10,000,000.

Even-Odd：Select Even or Odd.

from 50 to 10,000,000.

Data Bits：Set as 5、6、7、8 bits.

0-63, 0-127 or 0-255.

Mode

Auto

Normal

Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred

RS232 Trigger

RS232 Trigg er menu list:

Bus Type RS232 Set vertical channel bus type as RS232 trigger.

Input

When

rity

Start

Error

Chk Error

Data

Start

polarity of data transmission as Inverted.

baud.
Custom Baud: adjust M knob to choose baud, ranges

Parity: “NO””EVEN””ODD”

Error

Common Baud: adjust M knob to choose common
baud.

Configure

Custom Baud: adjust M knob to choose baud, ranges

Common Baud: adjust M knob to choose common

Chk Error

baud.
Custom Baud: adjust M knob to choose baud, ranges

Data

Data：Set data according to data bits, ranges from 0-31,

4.Advanced User Guidebook

38

Holdoff

Single

When trigger occurs, acquire one waveform then stop

MENU

SETTING

INSTRUCTION

CH1
CH2

Set CH1 as SCL or SDA.
Set CH2 as SCL or SDA.

Trigger when SDA data transitions from high to low
while SCL is high.

When another start condition occurs before a stop
condition.

Trigger when SDA data transitions from low to high
while SCL is high.

Trigger when SDA data is high during any
acknowledgement of SCL clock position.

Trigger on the read or write bit when the preset
address is met.

Addr

Bits

Set Address Bits to be “7”、“8”or“10”.

Set address according to the preset address bits,

Addr

2. I2C Trigger

The I2C serial bus consists of SCL and SDA. The transmission rate is determined by
SCL, and the transmission data is determined by SDA. As shown in below figure,
oscilloscope can trigger on the start, restart, stop, ack lost, specific device address or
data value, also device address and data value at the same time.

In I2C bus trigger mode, the trigger setting information is displayed on bottom right

of the screen, for ex ample, ，indicates that
trigger type is I2C, CH1 trigger level is 0.00mV, CH2 trigger level is 0.00mV.

I2C Trig ger menu list:

Bus Type I2C Set vertical channel bus type as I2C trigger.

Source

Start

Restart

Stop

When

Ack Lost

Address

Adr

For
mat

ess

address range is 0-127, 0-255, 0-1023 respectively.
Set Data Direction to be Read or Write.

39

Dire

ction

Note: The set is not available when Address bits is set
to “8”.

Data

Search for the preset data value on SDA and trigger on
the dump edge of SCL of the last bit of the data area.

Byte

h

Curr

it

Data

All
Bits

Trigger when Address and Data conditions are met at
the same time .

Mode

Holdoff

Auto

Single

Acquire waveform even no trigger occurred

When trigger occurs, acquire one waveform then stop

MENU

SETTING

INSTRUCTION

CH1
CH2

Set CH1 as SCL or SDA.
Set CH2 as SCL or SDA.

Set the minimum time that SCL must be idle, that is a

digit to be set.

ClockEdg

Clock Edge

Set Edge Clock as Rising edge or Falling edge. Means

lengt

DatF

entB

orma

t

Addr / Data

4.Advanced User Guidebook

Set data byte length, available range 1-5 byte s. Adjust
M knob to set byte length.
Select the data bit, ranges from 0 to (byte length*8 -1).
Set data to be H, L or X (H or L)

Set all the data bits to be the specified value in Data

Normal

Acquire waveform when trigger occurred

3. SPI Trigger

Trigger on the specified data when the timeout condition is meet. When using SPI
trigger, you need to specify the SCL and SDA data sources.
In SPI bus trigger mode, the trigger setting information is displayed on bottom right

of the screen, for example, ，indicates that
trigger type is SPI, CH1 trigger level is 0.00mV, CH2 trigger level is 0.00mV.

SPI Trigger menu list:

Bus Type SPI Set vertical channel bus type as SPI trigger.

Source

period of SCL, available range 100ns-10s. T ime out
means SCL keeps idle for a specified time before

Time Out Time out

oscilloscope starts to search for the data(SDA) on
which to trigger. adjust M knob to set time out, press

panel button move cursor to choose which

4.Advanced User Guidebook

40

e&Data

sample the SDA data on the rising edge or falling edge

Data Bits

Current Bit

Data

All Bits

Mode

Holdoff

Auto

Single

Acquire waveform even no trigger occurred

When trigger occurs, acquire one waveform then stop

MENU

SETTING

INSTRUCTION

CH1
CH2

Select CH1 as the trigger source.
Select CH2 as the trigger source.

CAN_H

RX

Actual CAN_H bus signal.

Received signal on the CAN signal line.

of the clock.
Set the number of bits of the serial data character
string. It can be set to any integer between 4-32. adjust
M knob to set Data Bits.
Set the number of the data bits, ranges from 0-31,
adjust M knob to set Current Bit.
Set the value of the current data bit as H,L or X (H or

L).

Set all the data bits to be the specified value in Data.

Normal

Acquire waveform when trigger occurred

4. CAN Trigger

CAN (Controller Area Network) is a serial communication protocol of the ISO
international standardization.

By using the CAN bus trigger, you can trigger on Start of Frame, Type of Frame,
Identifier, Data, ID & Data, End of Frame, Missing Ack, or Bit Stuffing Error.
You need to specify the signal source, trigger signal type, sample point, and signal
rate of the CAN signal.

In CAN bus trigger mode, the trigger setting information is displayed on bottom
right of the screen, for example, ，indicates that trigger

type is CAN, CH1 trigger level is -126 mV.

CAN Trigger menu list:

Bus Type CAN Set vertical channel bus type as CAN trigger.

Source

Input

Type

CAN_L
TX

Actual CAN_L bus signal.
Transmission signal on the CAN signal line.

41

Sample

Turn the M knob to set the Sample point, which is a point
within a bit’s time. The oscilloscope samples the bit level
at this point. “Sample point” is represented by the

5% to 95%.

Common

Baud

Turn the M knob to set the Bau d. The range i s 10,000 to

and then adjust it in this menu.

Start

Trigger on the start frame of the data frame.

Data

Remote

Error

Configure

Format

Select Standard or Extended.

Use the M knob and Direction
key on the front panel to set.

Byte
Length

Set the number of bytes with the
M knob. The range is 1 to 8.

Set the data with the M knob

panel.

Format

Select Standard or Extended.

Use the M knob and Direction
key on the front panel to set.

Byte
Length

Set the number of bytes with the
M knob. The range is 1 to 8.

Set the data with the M knob

panel.

End

Trigger on the end frame of the data frame.

Missing

Ack

Bit

Stuffing

Mode

Holdoff

Auto

Single

Acquire waveform even no trigger occurred

When trigger occurs, acquire one waveform then stop

Point

4.Advanced User Guidebook

percentage of “the time from the start of the bit’s time to
the sample point time” in the “bit’s time”. The range is

Turn the M knob to select from the Baud list on the left.

Condition

Custom

Baud

Type

ID

Data

ID&Data

1,000,000.
Tip: You can select the nearest value in Common Baud ,

Type

(Bottom
menu)

Trigger on the selected frame.

Overload

(Bottom
menu)

ID

Configure

(Bottom
menu)

Data

and Direction key on the front

ID

Configure

(Bottom
menu)

Trigger on Missing Ack.

Trigger on Bit Stuffing Error.

Normal

Acquire waveform when trigger occurred

Data

and Direction key on the front

4.Advanced User Guidebook

42

MENU

SETTING

INSTRUCTION

Common

Baud

Turn the M knob to set the Baud. The range is 50 to

and then adjust it in this menu.

Set the data width of each frame to match the signal. It

set the even-odd check mode to match the polarity used

Binary

Bus Decoding

1. RS232 Decoding

To decode RS232 signal:

(1) Connect the RS232 signal to the Signal Input Channel of the oscilloscope.
(2) Adjust to the proper time base and voltage division.
(3) In trigger menu, select Bus trigger, and select bus t ype as RS232, set para meters

based on the characteristics of th e signal, trigger the signal correctly and obtain
stable display. Refer to "RS232 Trigger" on page 36.

(4) Push the Decode button on the front panel. Select bus type as RS232. set

parameters based on the chara cteris tics o f th e si gnal. When the parameter s are set

correctly, the information carried by the signal will be displayed.

Tip: If there are repetitive menu items in both trigger menu and decoding menu, you
can set anyone of them, the other will be changed synchronously.

Note:
 Use the Trigger Level knob to adjust the thresholds of bus trigger and bus

decoding.

 When decoding, if "Parity" is not set to "None", and the check bit error is

detected, two red error marks will be displayed in the corresponding position in
the waveform.

RS232 Decoding menu list:

Bus Type RS232 Set bus type of decoding as RS232.

Turn the M knob to select from the Baud list on the left.

Custom

Baud

Configure

Data Bits

Parity

Display Format

10,000,000.
Tip: You can select the nearest value in Common Baud ,

can be set to 5, 6, 7 or 8.

by the signal.

Decimal

Set the display format of the bus.

Hex
ASCII

4.Advanced User Guidebook

43

ON

If a USB storage device is currently connected to the

in a .csv

Information

Abbreviation

Background

Read Address

R, Read, or do n ot di splay

Green

Write Address

W, Write, or do not display

Green

Data

D, Data, or do not display

Black

MENU

SETTING

INSTRUCTION

Binary

EventTable

Save

EventTable

OFF

instrument, save the event table data
(spreadsheet) format ted file on the extern al USB storage
device.

Select "ON" to display the event table.

2. I2C Decoding

To decode I2C signal:
(1) Connect the clock line (SC LK) and the data line (SDA) of the I2C signal to the

Signal Input Channels of the oscilloscope.

(2) Adjust to the proper time base and voltage division.
(3) In trigger menu, select Bus trigger, and select bus type as I2C, set parameters

based on the characteristics of the signal, trigger the signal correctly and obtain
stable display. Refer to "I2C Trigger" on page 38.

(4) Push the Decode button on the front panel. Select bus type as I2C. set parameters

based on the chara cteristics of the si gnal. When the parameters are set correctly,

the information carried by the signal will be displayed.

Tip: If there are repetitive menu items in both tr igger menu and decoding menu, you
can set anyone of them, the other will be changed synchronously.

Decoded information interpretation:

Note:

 Use the Trigger Level knob to adjust the thresholds of bus trigger and bus

decoding.

 When the ACK (ACKnowledge Character) is not met, two red error marks will be

displayed in the corresponding position in the waveform.

I2C Decoding menu list:

Bus Type I2C Set bus type of decoding as I2C.

Decimal

Display Format

Hex
ASCII

Set the display format of the bus.

4.Advanced User Guidebook

44

ON

If a USB storage device is currently connected to the

in a .csv

MENU

SETTING

INSTRUCTION

Select the clock edge to match the signal, sample the

Set the minimum time that the clock (SCL) signal must
Set the data width of each frame to match the signal. It

Bit Order

Select LS First or MS First to match the signal.

EventTable

Save

EventTable

OFF

instrument, save the event table data
(spreadsheet) format ted file on the extern al USB storage
device.

Select "ON" to display the event table.

3. SPI Decoding

To decode SPI signal:
(1) Connect the clock line (SCLK) and the data line (SDA) of the SPI signal to the

Signal Input Channels of the oscilloscope.

(2) Adjust to the proper time base and voltage division.
(3) In trigger menu, select Bus trigger, and select bus type as SPI, set parameters

based on the characteristi cs of the signal, trigger the signal correctly and obtain
stable display. Refer to "SPI Trigger" on page 39.

(4) Push the Decode button on the front panel. Select bus type as SPI. set parameters

based on the chara cteristics of the si gnal. When the parameters are set correctly,

the information carried by the signal will be displayed.

Tip: If there are repetitive menu items in both tr igger menu and decoding menu, you
can set anyone of them, the other will be changed synchronously.

Note:
 Use the Trigger Level knob to adjust the thresholds of bus trigger and bus

decoding.

 LS Firs t in Bit Order menu item (Least Significant Bit First) means that the leas t

significant bit will arrive first: hence e.g. the hexadecimal number 0x12, will
arrive as the sequenc e 01001000 in binary representation, will be decoded as the
reversed sequence 00010010.

SPI Decoding menu list:

Bus Type SPI Set bus type of decoding as SPI.

SCLK

Time Out

Configure

SDA data on the rising or falling edge of the clock.

be idle before the oscil los cope star ts to search for the d ata
(SDA) on which to trigger. The range is 30 ns to 10 s.

Data Bits

can be set to any integer between 4 and 32.

4.Advanced User Guidebook

45

Binary

ON

If a USB storage device is currently connected to the

in a .csv

Information

Abbreviation

Background

Identifier

I, ID, or do not display

Green

Overload Frame

OF

Green

Error Frame

EF

Green

Data Length code

L, DLC, or d o not displ ay

Blue

Data

D, Data, or do not display

Black

Error: Red

Display

Format

EventTable

Save

EventTable

Decimal
Hex
ASCII

OFF

instrument, save the event table data
(spreadsheet) format ted file on the extern al USB storage
device.

Set the display format of the bus.

Select "ON" to display the event table.

4. CAN Decoding

To decode CAN signal:

(1) Connect the CAN signal to the Signal Input Channel of the oscilloscope.
(2) Adjust to the proper time base and voltage division.
(3) In tri gger menu, select Bus trig ger, and select bus type as CAN, set paramet ers

based on the characteristics of th e signal, trigger the signal correctly and obtain
stable display. Refer to "CAN Trigger" on page 40.

(4) Push the Decode button on the front panel. Select bus type as CAN. set

parameters based on the chara cteris tics o f th e signal. When the param eters are set

correctly, the information carried by the signal will be displayed.

Tip: If there are repetitive menu items in both tr igger menu and decoding menu, you
can set anyone of them, the other will be changed synchronously.

Decoded information interpretation:

Cyclic Redundancy Check C, CRC, or do not displ ay

Note:

 Use the Trigger Level knob to adjust the thresholds of bus trigger and bus

decoding.

 When the ACK (ACKnowledge Character) of Data Frame or Remote Frame is

not met, two red error marks will be displayed in the corresponding position in
the waveform.

 Error Fr ame, R emo te Fra me, an d Ov erlo ad Fram e will be identified in the "Data"

Valid: Purple

4.Advanced User Guidebook

46

MENU

SETTING

INSTRUCTION

Binary

ON

If a USB storage device is currently connected to the

in a .csv

Function Menu

Setting

Description

Sample

Normal sampling mode.

Use to capture maximal and minimal
samples. Finding highest and lowest points

It is used for the

ming burr and the

possibility of reducing the confusion.

column in the event table (Data Frame will not be identified).

CAN Decoding menu list:

Bus Type CAN Set bus type of decoding as CAN.

Display

Format

EventTable

Save

EventTable

Decimal
Hex
ASCII

OFF

instrument, save the event table data
(spreadsheet) format ted file on the extern al USB storage
device.

Set the display format of the bus.

Select "ON" to display the event table.

How to Operate the Function Menu

The function menu control zone includes 8 function menu buttons: Measure, Acquire,
Utility, Cursor, Autoscale, Save, Display, Help and 3 immediate-execution buttons:
Autoset, Run/Stop, Single.

How to Implement Sampling Setup

Push the Acquire button, Acqu Mode, Length, PER F Mod e and Intrpl is shown in
the bottom menu.

The description of the Acqu Mode menu is shown as follows:

Acqu
Mode

The description of the Record Length menu is shown as follows:

Peak Detect

Average 4, 16, 64, 128

over adjacent intervals.
detection of the jam

It is used to reduce the random and don't-care
noises, with the optional number of averages.

4.Advanced User Guidebook

47

Function Menu

Setting

Description

1000

10K

100K

1M

10M

20M (Single CH)

Function Menu

Setting

Description

8-bit

12-bit

Function Menu

Setting

Description

Sinx/x

Use sine(x)/x interpolation

x

Use linear interpolation

Length

Choose the record length

The description of PERF Mode menu is shown as follows:

PERF Mode

Set the vertical resolution (A/D)

When the sample rate <=250MS/s, ADC resolution is set to 12-bit by default;
When the sample rat e >250MS/ s, and both channels are turned on, ADC resolution is
set to 8-bit by default;
When the sample rat e <250MS/s, and only one channel is turned on, ADC resolution
can be set to 8-bit or 12-bit in this menu.

The description of the Intrpl menu is shown as follows:

Intrpl

Interpolation method is a processing method to connect the sampled points, using
some points to calculate the whole appearance of the waveform. Select the appropriate
interpolation method according to the actual signal.

Sine(x)/x interpolation: Connect the sampled points with curved lines.
Linear interpolation: Connect the sampled points with straight lines. This method is

suitable to rebuild the straight-edged signals, such as square or pulse wave.

4.Advanced User Guidebook

48

Sine(x)/x interpolation

Linear interpolation

How to Set the Display System

Push the Display button and the Display menu is shown as follows:

4.Advanced User Guidebook

49

Function Menu

Setting

Description

Dots

Only the sampling points are displayed.
The space between the adjacent sampling
points in the display is filled with the vector
form.

OFF

Infinity

ON

OFF

Full

Screen

ON

OFF

ON

OFF

Erase the results of previous acquisitions from
the display. The oscilloscope will start to
accumulate acquisitions again.

Type

Persist

XY Mode

Counter

Clear

1 Second
2 Seconds
5 Seconds

Enable

Vect

Set the persistence time

Turn on/off XY display function

Turn on/off the full screen view in XY mode

Turn on/off counter

Persist

When the Persist function is used, the persistence display effect of the picture tube
oscilloscope can be simulated. The reserved original data is displayed in fade color
and the new data is in bright color.

(1) Push the Display button.
(2) Select Persist in the bottom menu.
(3) In th e Time menu, select the persist time, including OFF, 1 Second, 2 Seconds,

5 Seconds and Infinity. When the "Infinity" option is set for Persist Time, the
measuring points will be stored till the controlling value is changed. Select OFF
to turn off persistence and clear the display.

(4) Select Clear in the bottom menu to erase the results of previous acquisitions from

the display. The oscilloscope will start to accumulate acquisitions again.

XY Format

This format is only applicable to Channel 1 and Channel 2. After the XY display
format is selected, Channel 1 is displayed in the horizontal axis and Channel 2 in the
vertical axis; the oscilloscope is set in the un-triggered sample mode: the data are
displayed as bright spots.

The operations of all control knobs are as follows:

 The Vertical Scale and the Vertical Position knobs of Channel 1 are used to s et

4.Advanced User Guidebook

50

Function Menu

Setting

Description

Wave

Clone

Choose the saving type.

a waveform” on P61.

When the type is Wave, the menu shows as following:

the horizontal scale and position.

 The Vertical Scale and the Vertical Position knobs of Channel 2 are used to set

the vertical scale and position continuously.

The following functions can not work in the XY Format:

 Reference or digital wave form
 Cursor
 Trigger control
 FFT

Operation steps:

1. Push the Display button.

2. Select XY Mode in the bottom menu. Select Enable as ON in the right menu.

3. To make the XY view full screen, select Full Screen as ON in the right menu.

Counter

It is a 6-digit single-channel counter. The counter can onl y measure the frequency of
the triggering chann el. The frequency range is from 2Hz to the full bandwidth. On ly if
the measured channel is in Edge mode of Single trigger type, the counter can be
enabled. The counter is displayed at the bottom of the screen.

Operation steps:

1. Push T rigger Menu button, set the trigger type to Single, set the trigger mode to

Edge, select the signal source.

2. Push the Display button.

3. Select Counter as ON or OFF in the bottom menu.

How to Save and Recall a Waveform

Push the Save button, you can save the waveforms, configures, screen images, record
or clone the waveform.

The description of the Save Function Menu is shown as the following table:

Configure

Type

Image

Record

About the Record type, see "How to
Record/Playback Waveforms" on P57.
About the Clone type, see “How to Clone

4.Advanced User Guidebook

51

Format

For internal storage, only BIN can be

CH1

Choose the waveform to be saved. (If
certain channel is off, the corresponding

to the

storage as a single file.)

Choose the address which the waveform is
saved to or recall from.

Recall or close the waveform stored in the

When the show is

the address number and relevant

will prompt "None is saved".

Close all the waveforms stored in the
object address.

Save the waveform of the source to the

save menu is set, you can save the

in the

menu, you can select the

storage format.

Save to internal storage or USB storage.
When External is selected, save the

by OWON

supplied CD).

When the type is Configure, the menu shows as following:

Setting0

Save the current oscilloscope configure to
the internal storage

Type

Wave

Source

Object & Show

(Right
menu)

CH2

Math

All

Object 0 - 49

Show

ON

OFF

selected. For external storage, the format
can be BIN, TXT or CSV.

menu item will be disabled.)
(Choose All to save all the waveforms that
are turned on. You can save in
current internal object address, or into USB

current object address.
ON, if the current object address has b een
used, the stored waveform will be shown,

information will be displayed at the top left
of the screen; if the address is empty, it

Save

Storage

Close All

Internal

External

selected address. Whatever the Type of

waveform by just pressing the Copy panel
button in any user interface.
Select Type in the bottom menu,
right Format

waveform according to the current record
length (see "Record Length menu" on P46);
the file name is editable. The BIN
waveform file could be open
waveform analysis software (on the

Configure

Save

…..

Setting19

The setting address

4.Advanced User Guidebook

52

Recall the configure from the selected
address

When the type is Image, the menu shows as following:

Save the current display screen. The file

file name is editable. The file is stored in
BMP format.

Load

can be only stored in a USB storage, so a

Save

USB storage must be connected first. The

Save and Rec all the Waveform

The oscilloscope can store 50 waveforms, which can be displayed with the current
waveform at the same time. The stored waveform called out can not be adjusted.

In order to save the waveform of CH1, CH2 and Math into the address 1, the
operation steps should be followed:

1. Turn on CH1, CH2 and Math channels.

2. Push the Save button.

3. Saving: Select Type in the bottom menu, select Wave in the left menu.

4. Select Storage in the bottom menu, select Internal in the right menu.

5. Select Source in the bottom menu, select All in the right menu for Source.

6. Select Object & Show in the bottom menu, select 1 as object address in the left

menu.

7. Select Save in the bottom menu to save the waveform.

8. Recalling: Select Object & Show in the bottom menu, select 1 in the left menu.

In the right menu, select Show as ON, the waveform stored in the address will be
shown, the address number and relevant information will be displayed at the top
left of the screen.

In order to save the w aveform of CH1 and CH2 into the US B storage as a BIN file,
the operation steps should be followed:

1. Turn on CH1 and CH2 channels, turn off the Math channel.

2. Push the Save button.

3. Saving: Select Type in the bottom menu, select Wave in the left menu.

4. Select Storage in the bottom menu, select External in the right menu.

5. Select Type in the bottom menu, select BIN in the right menu as the storage

format.

6. Select Source in the bottom menu, select All in the right menu for Source.

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7. Select Save in the bottom menu, an input keyboard used to edit the file name will

pop up. The default name is current system date and time. Select the key in
the keyboard to confirm.

8. Recalling: The BIN waveform file could be open by OWON waveform analysis

software (on the supplied CD).

Tip:

Whatever the Type of save menu is set, you can save the waveform by just pressing
the Copy panel button in any user interface. If the Storage of the s ave menu i s set as
"External", you should install the USB disk. Please refer to the contents below to
install the USB disk and name the file to be saved.

Save the current screen im age:

The screen image can only be stored in USB disk, so you should connect a US B disk
with the instrument.

1. Install th e USB disk: Insert the USB disk into the "USB Host port" of "Figure

3-1 Front panel". If an icon appears on the top right of the screen, the USB
disk is installed successfully. If the USB disk cannot be recognized, format the
USB disk according to the methods in "USB disk Requirements" on P53.

2. After the USB disk is installed, push the Save panel button, the save menu is

displayed at the bottom of the screen.

3. Select Type in the bottom menu, select Image in the left menu.

4. Select Save in the bottom menu, an input keyboard used to edit the file name will

pop up. The default name is current system date and time. Select the key in
the keyboard to confirm.

USB disk Requirements

The supported format of the USB disk: FAT32 file system, the allocation unit size
cannot exceed 4K, mas s storage USB dis k is also supported. If the US B disk doesn't
work properly, format it into the supported format and try again. Follow any of the
following two methods to format the USB disk: using system-provided function and
using the formatting tools. (The USB disk of 8 G or 8 G above can only be formatted
using the second method – using the formatting tools.)

Use system-provided function to format the USB disk

1. Connect the USB disk to the computer.

2. Right click Computer- Manage to enter Computer Management interface.

3. Click Disk Management menu, and information about the USB disk will display

on the right side with red mark 1 and 2.

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Figure 4-2: Disk Management of computer

4. Right click 1 or 2 red mark area, choose Format. And system will pop up a

warning message, click Yes.

Figure 4-3: Format the USB disk warning

5. Set File System as FAT32, Allocation unit size 4096. Check "Perform a quick

format" to execute a quick format. Click OK, and then click Yes on the warning

message.

55

Figure 4-4: Formatting the USB disk setting

6. Formatting process.

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Figure 4-5: Formatting the USB disk

7. Check whether the USB disk is FAT32 with allocation unit size 4096 after

formatting.

Use Minitool Partition Wizard to format

Download URL: http://www.partitionwizard.com/free-partition-manager.html
Tip: There are many tools for the USB disk formatting on the market, just take

Minitool Partition Wizard for example here.

1. Connect the USB disk to the computer.

2. Open the software Minitool Partition Wizard.

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3. Click Reload Dis k on the pull-down menu at the top left or push keyboard F5,

and information about the USB disk will display on the right side with red mark 1
and 2.

Figure 4-6: Reload Disk

4. Right click 1 or 2 red mark area, choose Format.

Figure 4-7: Choose format

5. Set File System FAT32, Cluster size 4096. Click OK.

Figure 4-8: Format setting

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6. Click Apply at the top left of the menu. Then click Yes on the pop-up warning to

begin formatting.

Figure 4-9: Apply setting

7. Formatting process

Figure 4-10: Format process

8. Format the USB disk successfully

Figure 4-11: Format successfully

How to Record/Playback Waveforms

Wave Record function can record the input current wave. You can set the interval
between record ed fr am es in the range of 10 ms - 10 s. The m ax f ram e n umber reaches
1000, and you can get b etter analysis effect wi th playback and storage functio n. The
storage medium contains two kinds: Internal and External.
When the storage medium is Internal, Wave Record contains four modes: OFF,

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Menu

Setting

Instruction

OFF

Storage

Close wave record function

Set storage menu

Turn the M knob to select the number of frames to
record (1 - 1000)

Turn the M knob to select the interval between
recorded frames (10ms - 10s)

ON

OFF

Refresh wave during recording
Stop refreshing

Play
Stop

Begin to record
Stop recording

Menu

Setting

Instruction

Start frame

Turn the M knob to select the number of start frame

played back frames (10ms - 10s)

Loop
Once

Play back the wave continuously
Play back the wave just one time

Play
Stop

Begin to record
Stop recording

Menu

Setting

Instruction

Storage

Start frame

Turn the M knob to select the number of start frame

Record, Playback and Storage.
When storage medium is External, Wave Record contains two modes: OFF, Record.

Record: To record wave according to the interval until it reaches the end frame set.
Record menu (Internal Storage) shows as follows:

Mode

Record

Playback

Set record menu
Set playback menu

End frame

Record mode

FrameSet

Interval

Refresh

Operate

Note:
Both of the waveforms of Channel 1 and Channel 2 will be recorded. If a Channel is
turned off while recording, the waveform of the channel is invalid in the playback
mode.

Playback: Play back the wave recorded or saved.
Playback menu shows as follows:

Playback Mode

FrameSet

End frame

Cur frame

Interval

to playback (1 - 1000)
Turn the M knob to select the number of end frame
to playback (1 - 1000)
Turn the M knob to select the number of current
frame to playback (1 - 1000)
Turn the M knob to select the interval between

Play mode

Operate

Storage: Save the current wave according to the start frame and end frame set.
Storage menu shows as follows:

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Mode

to store (1 - 1000)

Turn the M knob to select the number of end frame to
store (1 - 1000)

Save

Save the waveform record file to the internal memory

Load

Load the waveform record file from the memory

Menu

Setting

Instruction

OFF

Record

Close wave record function
Set record menu

Turn the M knob to select the number of frames to
record (1 – 900,000)

Turn the M knob to select the interval between
recorded frames (10ms - 10s)

Infinity

Record infinitely until the storage medium is full

ON

OFF

Refresh wave during recording
Stop refreshing

Play
Stop

Begin to record
Stop recording

Frame Set

End frame

To use wave record function, do as follows:
(1) Push Save button.
(2) Select Type in the bottom menu, in the left menu, turn the M knob to select

Record.

(3) Select Mode in the bottom menu, select OFF in the right menu.
(4) In the bottom menu, select Storage as Internal.
(5) Select Mode in the bottom menu, select Record in the right menu.
(6) Select FrameSet in the bottom menu, set End frame and Interval in the right

menu.

(7) In the bottom menu, set Refresh.
(8) In the bottom menu, select Operate as Play.
(9) Select Mode in the bottom menu, select Playback in the right menu. Set

FrameSet and Playmode, select Operate as Play.

(10) To save the wave recorded, select Mode in the bottom menu, select Storage in

the right menu. Select FrameSet in the bottom menu to set the range of frames to
store, select Save in the bottom menu.

(11) To load the waveform from the internal memory, select Load in the bottom menu,

then enter the Playback of the Mode to analyze the wave.

Note: When playbacking the waveform, the sampling, trigger, or display function is
not available.

When storage medium is External, Wave Record contains two modes: OFF,
Record.

Record menu (External Storage) shows as follows:

Mode

End frame

Record mode

FrameSet

Interval

Refresh

Operate

Note:

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Both of the waveforms of Channel 1 and Channel 2 will be recorded. If a Channel is
turned off while recording, the waveform of the channel is invalid in the playback
mode.
To use wave record to external, do as follows:

1. Push Save button.

2. Select Type in the bottom menu, in the left menu, turn the M knob to select

Record.

3. Select Mode in the bottom menu, select OFF in the right menu.

4. In the bottom menu, select Storage as External.

5. Select Mode in the bottom menu, select Record in the right menu.

6. Select FrameSet in the bottom menu, set End frame and Interval in the right

menu. If you want to record wave t o ex t ernal i nfinitely, select Infinity in the right
menu, the End frame will display “-”.

7. In the bottom menu, set Refresh.

8. In the bottom menu, select Operate as Play.

Connect external device to the computer, and wave_record_0.bin is the recorded
file. Open the software, and do as follows to play back the waveform.

1. Choose Communications Auto Player.

2. Transform recording waveform from machine.

3. Add the well transformed files.

4. Set play mode and time delay.

5. Click the green button on the left corner to begin playing back the waveform.

Figure 4-12: Play back waveform by software

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Menu

Setting

Instruction

CH1

CH1&CH2

Clone the waveform of CH1

Clone the waveform of CH1 and CH2

a

x

Turn the M knob to move line a.

Set the cursors to select the entire screen automatically.

Save

Save the waveform between two cursors

Internal

USB

Length

Frequency

Time

How to Clone a waveform

You can clone the waveform of one or both channels between two cursors, and save it
in the internal memory or on a USB memory device. You can save four cloned
waveforms in the instrument internal memory. The waveform files saved to a USB
memory device are saved with the extension "ota".

You can also use OWON AG1022F or AG2052F signal g enerator to read *.ota files
and recall the cloned waveforms.

Clone Wave menu shows as follows:

Source

Line

CH2

b

ab

Clone the waveform of CH2

Turn the M knob to move line b.
Two cursors are linked. Turn the M knob to move the

pair of cursors.

Save

Memory

Select the memory location

To clone waveform and save to the internal/USB memory:

(1) Push Save button.
(2) Select Type in the bottom menu, in the left menu, turn the M knob to select

Clone.

(3) Select Source in the bottom menu, select one channel (CH1/CH2) or two

channels (CH1&CH2) in the right menu for Source.

(4) Select Line in the bottom menu. If a or b is selected, turn the M knob to move the

cursor. If ab is selected, turn the M knob to move the pair of cursors. If x is
selected, the entire screen will be selected automatically. The waveform
information is displayed at the left bottom corner of the screen.

Note: If "Out Of Limits" appears i n the information or a message "Waveform
points beyond the limit." appears on the screen, that means the length of the

cloned waveform exceeds the limit. When the source is CH1 or CH2, the
maximum length is 2M; When the source is CH1&CH2, the maximum length is
1M. Push the Acquire button, select Length in the bottom menu, and set the
record length to a smaller value.

(5) Select Save in the bottom menu.

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 To save the waveform to internal memory, select Storage in the right menu

as Internal. Turn the M knob to select an object in the left m enu, select Save
in the right menu.

 To save the waveform onto a USB memory device, insert a USB memory

device into the port on the front panel. If the icon appears on the top right
of the screen, the USB memory device is installed successfully. If the USB
memory device cannot be recognized, format the USB memory device
according to the methods in "USB disk Requirements" on P 53. Select Storage
in the right menu as External. Select Save in the right menu. An input
keyboard used to edit the file name will pop up. The name is default as current
system date and ti me. Turn the M knob to select the keys, push the knob to
input. Select the key in the keyboard to confirm. The cloned waveform
will be saved onto the USB memory device as a file with the ota suffix.

Data format description of OTA waveform file

If the source is CH1 or CH2, OTA file consists of two parts: the file h eader and the data. If t he
source is CH1&CH2, OTA file consists of three parts: f ile header, CH1data, and CH2 data. The
file header represents the parameter of file data, which is expressed in "parameter name + value".
Each parameter name is a case-sensitive string of 4 bytes. The parameter value is at least 4 bytes.

1.Format description of the file header:

1) HEAD

Parameter name Meaning Value Comment

HEAD Header size 4 bytes int

2) TYPE

Parameter name Meaning Value Comment

TYPE Model 12 bytes char

3) BYTE

Parameter name Meaning Value Comment

BYTE Data length in bit 4 bytes int

4) SIZE

Parameter name Meaning Value Comment

SIZE File size 4 bytes int Used to check the file

integrity

5) VO LT

Parameter name Meaning Value Comment

VOLT Voltage division,

divided by 400 is

ADC resolution.

(When the source is

CH1&CH2, it is CH1

voltage division.)

6) SAMP

Parameter name Meaning Value Comment

4 bytes float The value indicates voltage

(the unit is mV), such as 200

mV.

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Function Menu

Setting

Description

Choose the display language of the operating
system.

ON

OFF

Hour Min

Setting Hour/Minute

Day Month

Setting Date/Month

Year

Setting Year

Lock all keys. Unlock method: push Trigger

Force button, repeat 3 times.

About

Version number and serial number showing

SAMP Sample rate 4 bytes float The unit is Sa/s.

7) ADCB

Parameter name Meaning Value Comment

ADCB ADC bit, ADC

resolution

8) CHAN

Parameter name Meaning Value Comment

CHAN Number of channels 4 bytes int 1 or 2

9) VOL2

Parameter name Meaning Value Comment

VOL2 Voltage division,

divided by 400 is

ADC resolution.

(When the source is

CH1&CH2, it is CH2

voltage division.)

4 bytes int 8-bit or 12-bit

4 bytes float The value indicates voltage

(the unit is mV), such as 200

mV.

2.Data

The data type is signed integer. You can determine the data type (char, short int or int) based on
the BYTE parameter. The valid range is determined by the ADCB parameter, e.g. the valid range
for 8-bit ADC is -127 to +127.

How to Implement the Auxiliary System Function Setting

●Config

Push the Utility button, select Function in the bottom menu, select Configure in
the left menu.
The description of Configure Menu is shown as the follows:

Language

Display

Set Time

On/Off the date display

KeyLock

●Display

Push the Utility button, select Function in the bottom menu, select Display in the

Menu button in trigger control area, then push

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Function Menu

Description

Self Cal

Carry out the self-calibration procedure.

Default

Call out the factory settings.

ProbeCh.

Check whether probe attenuation is good.

Function Menu

Setting

Description

BackLight

0% - 100%

Turn the M knob to adjust the backlight.

Menu Time

OFF, 5s - 30s

Set the disappear time of menu

left menu.
The description of Display Menu is shown as the follows:

Graticule

Select the grid type

●Adjust

Push the Utility button, select Function in the bottom menu, select Adjust in the
left menu.
The description of Adjust Menu is shown as the follows:

Do Self Cal (Self-Calibration)

The self-calibration procedure can improve the accuracy of the oscilloscope under
the ambient temperature to the greatest extent. If the change of the ambient
temperature is up to or exceeds 5℃, the self-calibration procedure should be
executed to obtain the highest level of accuracy.

Before executing the self-calibration procedure, disconnect all probes or wires from
the input connector. Push the Utility button, select Function in the bottom menu,
the function menu will display at the left, select Adjust. If everything is ready,
select Self Cal in the bottom menu to enter the self-calibration procedure of the
instrument.

Probe checking

To check whether probe attenuation is good. The results contain three circumstances:
Overflow compensation, Good compensation, Inadequate compensation. According to
the checking res ult, users can adjust prob e attenuation to the best. Operation st eps are
as follows:

1. Connect the probe to CH1, adjust the probe attenuation to the maximum.

2. Push the Utility button, select Function in the bottom menu, select Adjust in the

left menu.

3. Select ProbeCh. in the bottom menu, tips about probe checking shows on the

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Function Menu

Setting

Description

Enable

Operate

Control enable switch
Control operate switch

Pass

Info

Signal tested corresponds with the rule

Control the display status of info frame

Source

Create

Select source CH1, CH2 or Math

Use the rule set as testing rule

Number

Load

Select any one from Rule1 - Rule8 as your rule name

Load some rule as the testing rule

screen.

4. Select ProbeCh. again to begin probe checking and the checking result will occur

after 3s; push any other key to quit.

● Pass/Fail

The Pass/Fail function monitors changes of signals and output pass or fail signals by
comparing the input signal that is within the pre-defined mask.

Push the Utility button, select Function in the bottom menu, select Pass/fail in the
left menu.

The description of Pass/fail Menu is shown as the follows:

operate

Output

Horizontal

Rule

SaveRule

Pass/Fail test:

Detect whether the input signal is within the limits of the rule, if it exceeds limits of
the rule, it is "Fail"; otherwise it is "Pass". Also it can output fail or pass signal by
built-in and configurable output port. To run the test, read the following steps:

1. Push the Utility button, select Function in the bottom menu, select Pass/fail in the

left menu.

2. Enable switch on: Select Operate in the bottom menu, select Enable in the right

menu as ON.

3. Create rule: Select Rule in the bottom menu. Select Source in the right menu,

select the source in the left menu. Set Horizontal tolerance and Vertical tolerance
in the right menu. Select Create in the right menu to create the rule.

4. Set output type: Select Output in the bottom menu t o enter output option setting.

Choose any one or two of the options "Pass", "Fail" or "Beep". "Pass" and "Fail"
are mutually exclusive options, which could not be chosen simultaneously. "Stop"
means stop once the condition satisfies your setting.

5. Begin to test: Select Operate in the bottom menu, select Operate in the right

Fail

Beep

Stop

Vertical

Save

Signal tested not correspond with the rule
Beep when it satisfies the rule
Stop once satisfying the rule

Change the Horizontal tolerance value by turning the
M knob
Change the Vertical t olerance value by turning the M
knob

Select Save to save the rule

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Function

Menu

Trig level

Output trig signal synchronously

Pass/fail

Output High Level when Pass , and Low Level when Fail

Function

Menu

OFF

Turn off video output

display can be shown on an external monitor or projector.

menu as Start, the test will begin.

6. Save rule: Select SaveRule in the bottom menu. Select the save location in the

left menu, and then select Save in the right menu to save the rules, which could be
called up at once when need. Select Load to call up the rule saved.

Note:

1. When Pass/Fail is ON, if XY or FFT is ready to run, then Pass/Fail will be closed;

under the mode of XY or FFT, Pass/Fail is unable.

2. Under the mode of Factory, Auto Scale and Auto Set, Pass/Fail will be closed.

3. When no save setting left in the rule save, tip will be given to show "NO RU LE

SAVED".

4. Under the status of stop, data comparing will stop, and when it goes on running,

the number of Pass/Fail will increase from the former number, not from zero.

5. When the waveform playback mode is on, Pass/Fail is used to test the

played-back waveform specially.

● Output

Push the Utility button, select Function in the bottom menu, select Output in the left
menu.

Output menu item in the bottom menu sets the output type of Trig Out(P/F) port in
Figure 3-3 Rear Panel on P6. In the bottom menu, select Output. The description of

Output menu is shown as the follows:

Setting Description

Type

Video menu item in the bottom menu sets the output port of video. In the bottom
menu, select Video. The description of Video menu is shown as the follows:

Setting Description

Video

VGA

AV

Connect the VGA or AV port to an external monitor or
projector. Select the port in this menu, the oscilloscope

Device and Print Setup menu items set the print output, refer to "How to Print the
Screen Image" on page 79.

● LAN Set

Using the LAN port, the oscilloscope can be connected with a computer. Refer to
"Communication with PC" on page 80 for the operation steps.

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● Update

Use the front-panel USB port to update your instrument firmware using a USB
memory device. Refer to "How to Update your Instrument Firmware" on page 67.

How to Update your Instrument Firmware

Use the front-panel USB port to update your instrument firmware using a USB
memory device.

USB memory device requirements: Insert a USB memory device into the USB port
on the front panel. If the icon appears on the top right of the screen, the USB

memory device is installed successfully. If the USB memory device cannot be
detected, format the USB memory device according to the methods in "USB disk
Requirements" on P53.

Caution: Updating your instrument firmware is a sensitive operation, to prevent
damage to the instrument, do not power off the instrument or remove the USB
memory device during the update process.

To update your instrument firmware, do the following:

1. Push the Utility button, select Function in the bottom menu, select Configure in

the left menu, select About in the bottom menu. View the model and the currently
installed firmware version.

2. From a PC, visit www.owon.com.cn and check if the website offers a newer

firmware version. Download the firmware file. The file name must be *.update.
The file name can be up to 15 characters long (including the suffix). Copy the
firmware file onto your USB memory device.

3. Insert the USB memory device into the front-panel USB port on your instrument.

4. Push the Utility button, select Function in the bottom menu, select Update in the

left menu.

5. Select Open in the bottom menu, the instrument lists a directory o f the folders on

the USB memory device. Turn the M knob t o select a folder, select Open in the
bottom menu to enter the folder. Navigate to the folder where the firmw are file is,
and select the file with the .update suffix.

6. In the bottom menu, select Open, the messages below will be shown.

7.

In the bottom menu, select Start again, the interfaces below will be displayed in
sequence. The update process will take up to three minutes. After completion, the
instrument will be shut down automatically.

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Function Menu

Setting

Description

Meas Type
(left menu)

CH1

CH2

Add the selected m easure types (shown

types at most)

Meas Type
(left menu)

8.

Long press the

button to power on the instrument.

How to Measure Automatically

Push the Measure button to display the menu for the settings of the Automatic
Measurements. At most 8 types of measurements could be displayed on the bottom
left of the screen.

The oscilloscopes provide 30 parameters for auto measurement, including Period,
Frequency, Mean, PK-PK, RMS, Max, Min, Top, Base, Amplitude, Overshoot,
Preshoot, Rise Time, Fall Time, +PulseWidth, -PulseWidth, +Duty Cycle, -Duty
Cycle, Delay A→B , Delay A→B, Cycle RMS, Cursor RMS, Screen Duty,
Phase, +PulseCount, -PulseCount, RiseEdgeCnt, FallEdgeCnt, Area, and Cycle
Area.

The "Automatic Measurements" menu is described as the following table:

Select the measure types

Add

Source

Add

Remove

Select the source

at the left bottom, you could only add 8

Select the types need to be deleted.

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Remove All

Remove all the measures

Show

CH1

ON

OFF

Show all the measures of CH1 on the screen
Hide the window of CH1 measures

Show

CH2

ON

OFF

Show all the measures of CH2 on the screen
Hide the window of CH2 measures

Remove Remove the chosen measure type

Measure

Only if the waveform channel is in the ON state, the measurement can be performed.
The autom atic measur ement can not be performed in the following situation: 1) On
the saved waveform. 2) On the Dual Wfm Math waveform. 3) On the Video trigger
mode.
On the Scan format, period and frequency can not be measured.

Measure the period, the frequency of the CH1, following the steps below:

1. Push the Measure button to show the automatic measurement function menu.

2. Select Add in the bottom menu.

3. In the right menu, select CH1 in the Source menu item.

4. In the left Type menu, turn the M knob to select Period.

5. In the right menu, select Add. The period type is added.

6. In the left Type menu, turn the M knob to select Frequency.

7. In the right menu, select Add. The frequency type is added.

The measured value will be displayed at the bottom left of the screen automatically
(see Figure 4-13).

Figure 4-13 Automatic measurement

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The automat ic measurement of voltage parameters

The oscilloscopes provide automatic voltage measurements including Mean, PK-PK,
RMS, Max, Min, Vtop, Vbase, Vamp, OverShoot, PreShoot, Cycle RMS, and
Cursor RMS. Figure 4-14 below shows a pulse with some of the voltage
measurement points.

Figure 4-14

Mean: The arithmetic mean over the entire waveform.
PK-PK: Peak-to-Peak Voltage.
RMS: The true Root Mean Square voltage over the entire waveform.
Max: The max imum amplitude. The most positive peak voltage measured over the

entire waveform.

Min: The minimum amplitude. The most negative peak voltage measured over the

entire waveform.

Vtop: Voltage of the waveform's flat top, useful for square/pulse waveforms.
Vbase: Voltage of the waveform's flat base, useful for square/pulse waveforms.
Vamp: Voltage between Vtop and Vbase of a waveform.
OverShoot: Defined as (Vmax-Vtop)/Vamp, useful for square and pulse

waveforms.

PreShoot: Defined as (Vmin-Vbase)/Vamp, useful for square and pulse

waveforms.

Cycle RMS: The true Root Mean Square voltage over the first entire period of the

waveform.

Cursor RMS: The true Root Mean Square voltage over the range of two cursors.

The automatic measurem en t of time parameters

The oscilloscopes provide time parameters auto-measurements include Period,
Frequency, Rise Time, Fall Time, +D width, -D width, +Duty, -Duty, Delay
A→B , Delay A→B , and Duty cycle.

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Figure 4-15 shows a pulse with some of the time measurement points.

Figure 4-15

Rise Time: Time that the leading edge of the first pulse in the waveform takes to

rise from 10% to 90% of its amplitude.

Fall Time: Time that the falling edge of the first pulse in the waveform takes to

fall from 90% to 10% of its amplitude.

+D width: The width of the first positive pulse in 50% amplitude points.

-D width: The width of the first negative pulse in the 50% amplitude points.
+Duty: +Duty Cycle, defined as +Width/Period.

-Duty:-Duty Cycle, defined as -Width/Period.
Delay A→B : The delay between the two channels at the rising edge.
Delay A→B : The delay between the two channels at the falling edge.
Screen Duty: Defines as (the width of the positive pulse)/(Entire period)
Phase: Compare the rising edge of CH1 and CH2, calculate phase difference of

two channels.

Phase difference=(Delay between channels at the rising edge÷Period)×360°.

Other measurements

+PulseCount : The number of positive pulses that rise above the mid

reference crossing in the waveform.

-PulseCount

: The number of negative pulses that fall below the mid

reference crossing in the waveform.

RiseEdgeCnt

: The number of positive transitions from the low reference

value to the high reference value in the waveform.

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Function

Menu

Voltage

Display the voltage measurement cursor and menu.

the vertical cursors and the waveform

Line Type

tage type)

Window

mode)

a

Turn the M knob to move line a.

the pair of cursors.

CH1
CH2

Display the channel to which the cursor
measurement will be applied.

FallEdgeCnt

reference value to the low reference value in the waveform.

: The number of negative transitions from the high

Area : The area of the whole waveform within the screen and the unit is
voltage-second. The area measured above the zero reference (namely the vertical
offset) is positive; the area measured below the zero reference is negative. The
area measured is the algebraic sum of the area of the whole waveform within the
screen.

Cycle Area : The area of the first period of waveform on the screen and
the unit is voltage-second. The area above the zero reference (namely the vertical
offset) is positive and the area below the zero reference is negative. The area
measured is the algebraic sum of the area of the whole period waveform.
Note: When the waveform on the screen is less than a period, the period area
measured is 0.

How to Measure with Cursors

Push the Cursor button to turn cursors on and display the cursor menu. Push it
again to turn cursors off.

The Cursor Measurement for normal mode:

The description of the cursor menu is shown as the following table:

Setting Description

Type

(Time&Vol

(Wave

zoom

Line

Time

Time&Voltage

AutoCursr

Time

Voltage

Main

Extension

b

ab

Display the time measurement cursor and menu.
Display the time and voltage measurement cursor
and menu.
The horizontal cursors are set as the intersections of

Makes the vertical cursors active.
Makes the horizontal cursors active.

Measure in the main window.
Measure in the extension window.

Turn the M knob to move line b.
Two cursors are linked. Turn the M knob to move

Source

Perform the following operation steps for the time and voltage cursor measurement
of the channel CH1:

4.Advanced User Guidebook

73

1. Push Cursor to display the cursor menu.

2. In the bottom menu, select Source as CH1.

3. Select the first menu item in the bottom menu, the Type menu will display at

the right of the screen. In the right menu, select Time&Voltage for Type,
two blue dotted lines displayed along the horizontal direction of the screen,
two blue dotted lines displayed along the vertical direction of the screen.
Cursor measure window at the left bottom of the screen shows the cursor
readout.

4. In the bottom menu, select Line Type as Time to make the verti cal cursors

active. If the Line in the bottom menu is select as a, turn the M knob to move
line a to the right or left. If b is selected, turn the M knob to move line b.

5. In the bottom menu, select Line Type as Voltage to make the horizontal

cursors active. Sele ct Line in the bottom menu as a or b, turn the M knob to
move it.

6. Push the Horizontal HOR button to enter wave zoom mode. In the bottom

cursor menu, select Window as Main or Extension to make the cursors
shown in the main window or zoom window.

Figure 4-16 Time&Voltage Cursor Measurement

Auto Cursor

For the AutoCursr type, the horizontal cursors are set as the intersections of the
vertical cursors and the waveform.

4.Advanced User Guidebook

74

Auto Cursor

Function

Menu

Display the Vamp (or Phase) measurement

Freq

Display the Freq measurement cursor and menu.

Freq&Vamp

(or Freq&Phase)

Display the corresponding measurement cursor
and menu.

The horizontal cursors are set as t h e intersections

Line Type

type)

Window

mode)

a

Turn the M knob to move line a.

b

Turn the M knob to move line b.

Two cursors are linked. Turn the M knob to
move the pair of cursors.

Display the channel to which the cursor
measurement will be applied.

The Cursor Measurement for FFT mode

In FFT mode, push the Cursor button to turn cursors on and display the cursor menu.

The description of the cursor menu in FFT mode is shown as the following table:

Setting Description

Vamp (or Phase)

cursor and menu.

Type

(Freq&Vamp

or

Freq&Phase

(Wave zoom

AutoCursr

Freq Makes the vertical cursors active.

Vamp (or Phase) Makes the horizontal cursors active.

Main

Extension

of the vertical cursors and the waveform

Measure in the main window.
Measure in the FFT extension window.

Line

ab

Source Math FFT

Perform the following operation steps for the amplitude and frequency cursor
measurement of math FFT:

4.Advanced User Guidebook

75

ON

Turn on

Follow-up and adjust both vertical and horizontal

1. Press the Math button to display the math menu in the bottom. Select FFT.

In the ri ght menu, select Format. In the left menu, turn the M knob to select
amplitude unit (V RMS or Decibels).

2. Push Cursor to display the cursor menu.

3. In the bottom menu, select Window as Extension.

4. Select the first menu item in the bottom menu, the Type menu will display at

the right of the screen. In the right menu, select Freq&Vamp for Type, two
blue dotted lines displayed along the horizontal direction of the screen, two
blue dotted lines displayed along the vertical direction of the screen. Cursor
measure window at the left bottom of the screen shows the cursor readout.

5. In the bottom menu, select Line Type as Freq t o make the vertical cursors

active. If the Line in the bottom menu is select as a, turn the M knob to move
line a to the right or left. If b is selected, turn the M knob to move line b.

6. In the bottom menu, select Line Type as Vamp to make the horizontal

cursors active. Sele ct Line in the bottom menu as a or b, turn the M knob to
move it.

7. In the bottom cursor menu, you can select Window as Main to make the

cursors shown in the main window.

How to Use Autoscale

This is a very useful function for first time users to carry out a simple and quick test
on the input signal. The function is applied to foll ow-up signals automatically even if
the signals change at any time. Autoscale enables the instrument to set up trigger
mode, voltage division and time scale automatically according to the type, amplitude
and frequency of the signals.
The menu is as follows:

Function Menu Setting Instruction

Autoscale.

Autoscale

Mode

OFF

Turn off Autoscale.

settings.
Follow-up and only adjust horizontal scale.

Follow-up and only adjust vertical scale.

Wave

Show Multi-period waveforms.

Only show one or two periods.

4.Advanced User Guidebook

76

If you want to measure the two-channel signal, you can do as the follows:

1. Push the Autoscale button, the function menu will appear.

2. In the bottom menu, select ON in the Autoscale menu item.

3. In the bottom menu, Select Mode. In the right menu, select

4. In the bottom menu, Select Wave. In the right menu, select
Then the wave is displayed in the screen, shown as Figure 4-17.

.
.

Figure 4-17 Autoscal e H or izontal-Vertical multi-period waveforms

Note:

1. Entering into Autoscale function and the symbol ○A will be flickering on the top

left of the screen.

2. In the mode of Autoscale, the oscilloscope can self-estimate Trigger Mode (Edge,

Video). At this point, the trigger menu is not available.

3. At the mode of XY and STOP status, when entering into Autoscale, DSO switches

to YT mode and AUTO triggering.

4. At the mode of Autoscale, DSO is always set as DC coupling with AUTO

triggering.

5. At the mode of Autoscale, if adjust the vertical position, voltage division, trigger

level or time scale of CH1 or CH2, the oscilloscope will turn off Autoscale
function. To back to Autoscale, Push Autoset.

6. Turn off the submenu at the Autoscale menu, the Autoscale is off and turn on the

submenu still enters into the function.

7. When video triggering, the horizontal time scale is 50us. If one channel is

showing edge signal, the other channel is showing video one, the time scale refers
to 50us as video one as standard.

8. While the Autoscale is working, the settings below will be made forcibly:

The DSO will switch from the wave zoom mode to the normal mode.

4.Advanced User Guidebook

77

Function Items

Setting

Vertical Coupling

Current

Channel Coupling

Current

Vertical Scale

Adjust to the proper division.

Bandwidth

Full

Horizontal Level

Middle or ±2 div

Horizontal Sale

Adjust to the proper division

Trigger Type

Slope or Video

Trigger Source

CH1 or CH2

Trigger Coupling

DC

Trigger Slope

Current

Trigger Level

3/5 of the waveform

Trigger Mode

Auto

Display Format

YT

Force

Stop

Help

Exit

Pass/Fail

Off

Inverted

Off

Zoom Mode

Exit

How to Use Built-in Help

1. Push Help button, the catalog will display in the screen.

2. In the bottom menu, press Prev Page or Next Page to choose help topic, or just

turn the M knob to choose.

3. Press OK to view the details about the topic, or just push the M knob.

4. Press Quit to exit the help, or just do other operations.

How to Use Executive Buttons

Executive Buttons include Autoset, Run/Stop, Single, Copy.

Autoset

It's a very useful and quick way to apply a set of pre-set functions to the incoming
signal, and display the best possible viewing waveform of the signal and also
works out some measurements for user as well.

The details of functions applied to the signal when using Autoset a re shown as
the following table:

Judge waveform type by Autoset

Five kinds of types: Sine, Square, video signal, DC level, Unknown signal.
Menu as follow:

Sine: (Multi-period, Single-period, FFT, Cancel Autoset)

4.Advanced User Guidebook

78

Square: (Multi-period, Single-period, Rising Edge, Falling Edge, Cancel Autoset)

Video signal:

DC level, Unknown signal:

Description for some icons:

Multi-period： To display multiple periods
Single-period： To display single period
FFT： Switch to FFT mode
Rising Edge： Display the rising edge of square waveform
Falling Edge： Display the falling edge of square waveform
Cancel Autoset：Go back to display the upper menu and waveform information

Note: The Autoset function requires that the frequency of signal should be no lower
than 20Hz, and the amplitude should be no less than 5mv. Otherwise, the Autoset
function may be invalid.

Run/Stop: Enable or disable sampling on input signals.

Notice: W hen there is no sampling at STOP state, the vertical division and
the horizontal time base of the waveform still can be adjusted within a
certain range, in other words, the signal can be expanded in the horizontal or
vertical direction.
When the horizontal time base is ≤50ms, the horizontal time base can be
expanded for 4 divisions downwards.

Single: Push this button you can set the trigger mode as single directly, so when

trigger occurs, acquire one waveform then stop.

Copy: You can save the wav eform by just pushing the Copy panel button i n any

user interface. The source wave and the storage location are according to
the settings of the Save function menu when the Type is Wave. For more
details, please see "Save Function Menu" on P50.

4.Advanced User Guidebook

79

How to Print the Screen Image

To print an image of what appears on the oscilloscope screen, do as the follows:
(1) Connect the printer to the USB Device port on the rear panel of the oscilloscope.

Note: The USB Device port supports PictBridge compatible printers.

(2) Push the Utility button, select Function in the bottom menu, select Output in the

left menu.

(3) In the bottom menu, select Device as PICT. (When PC is selected, you can get

an image by Oscilloscope software.)

(4) In the bottom menu, select Print Setup. In the right menu, set up print parameters.

The On selection of Ink Saver will print out a copy with a white background.

(5) Once you have connected a printer to your oscilloscope and set up print

parameters, you can print current screen images with a single push of the Print
button on the front panel.

5.Communication with PC

80

5. Communication with PC

The oscilloscope supports communications with a PC through USB or LAN port. You can
use the Oscilloscope communication software to store, analyze, display the data and
remote control.
To learn about how to operate the software, you can push F1 in the software to open the
help document.
Here is how to connect with PC. First, install the Oscilloscope communication software on
the supplied CD. Then there are several ways of connection to choose from.

Using USB Port

(1) Connection: Use a USB data cable to co nne ct t he US B Devi ce p or t in the right panel

of the Oscilloscope to the USB port of a PC.

(2) Install th e driver: Run the Oscilloscope communication software on PC, push F1 t o

open the help document. Follow the steps of title "I. Device connection" in the
document to install the driver.

(3) Port setting of the software: Run the Oscilloscope software; click

"Communications" on the menu bar, choose "Ports-Settings", in the setting dialog,
choose "Connect using" as "USB". After connect successfully, the connection
information in the bottom right corner of the software will turn green.

Figure 5-1 Connect with PC through USB port

5.Communication with PC

81

Using LAN Port

Connect directly

(1) Connection. Plug in the LAN cable to the LAN port in the back of the oscilloscope;

plug the other end into the LAN interface of the computer.

(2) Set the network parameters of the computer. Since the oscilloscope can not

support obtaining an IP address automatically, you should assign a static IP address.
Here we set the IP address to 192.168.1.71.

Figure 5-2 Set the network parameters of the computer

(3) Set the network parameters of the OWON Oscilloscope Software. Run the

software on the computer; choose the "Ports-settings" of the "Communications" menu
item. Set "Connect using" to LAN. About the IP, the first three b ytes is same as th e IP
in the step (2), the last byte should be different. Here, we set it to 192.168.1.72. The
range of the port value is 0 - 4000, but the port whi ch under 2000 is alwa ys used, so it
is suggested to set it to the value above 2000. Here, we set it to 3000.

5.Communication with PC

82

Figure 5-3 Set the network parameters of the OWON Oscilloscope Software

(4) Set the network parameters of the oscilloscope. In the oscilloscope, push the Utility

button. Select Function in t he bottom menu. Select LAN S et in the left menu. In the
bottom menu, set the Type item as LAN, and select Set. In the ri ght menu, set IP and

Port to the same value as the "Ports-settings" in the software in step (3). Select Save
set in the bottom menu, it prompts "Reset to update the config". After resetting the

oscilloscope, if you can get data normally in the oscilloscope software, the connection
is successful.

Figure 5-4 Set the network parameters of the oscilloscope

Connect through a router

(1) Connection. Use a LAN cable to connect the oscilloscope with a router, the LAN port

of the oscilloscope is in the right side panel; the computer should be connected to the
router too.

(2) Set the network parameters of the computer. Since the oscilloscope can not

support obtaining an IP address automatically, you should assign a static IP address.
The Default gateway and Subnet mask should be set according to the router. H ere we

5.Communication with PC

83

set the IP address to 192.168.1.71, Subnet mask is 255.255.255.0, Default gateway is

192.168.1.1.

Figure 5-5 Set the network parameters of the computer

(3) Set the network parameters of the OWON Oscilloscope Software. Run the

software on the computer; choose the "Ports-settings" of the "Communications" menu
item. Set "Connect using" to LAN. About the IP, the first three b ytes is same as the IP
in the step (2), the last byte should be different. Here, we set it to 192.168.1.72. The
range of the port value is 0 - 4000, but the port whi ch under 2000 is alwa ys used, so it
is suggested to set it to the value above 2000. Here, we set it to 3000.

Figure 5-6 Set the network parameters of the OWON Oscilloscope Software

5.Communication with PC

84

(4) Set the network parameters of the oscilloscope. In the oscilloscope, push the Utility

button. Select Function in t he bottom menu. Select LAN Set in the left menu. In t he
bottom menu, set the Type item as LAN, and sel ect Set. In the right menu, set IP and
Port to the same value as the "Ports-settings" in the software in step (3). The Netgat e
and Net mask should be set according to the router. Select Save set in the bottom
menu, it prompts "Reset to update the config". After resetting the oscilloscope, if you
can get data normally in the oscilloscope software, the connection is successful.

Figure 5-7 Set the network parameters of the oscilloscope

6.Demonstration

85

6. Demonstration

Example 1: Measurement a Simple Signal

The purpose of this example is to display an unknown signal in the circuit, and
measure the frequenc y and peak-to-peak voltage of the signal.

1. Carry out the following operation steps for the rapid display of this signal:

(1) Set the probe menu attenuation coefficient as 10X and that of the switch in the

probe switch as 10X (see "How to Set the Probe Attenuation Coefficient" on P12).

(2) Connect the probe of Channel 1 to the measured point of the circuit.
(3) Push the Autoset button.
The oscilloscope will implement the Autoset to make the waveform optimized, based

on which, you can further regulate the vertical and horizontal divisions till the
waveform meets your requirement.

2. Perform Automatic Measurement

The oscilloscope can measure most of the displayed signals automatically. To
measure the period, the frequency of the CH1, following the steps below:

(1) Push the Measure button to show the Measure menu.
(2) Select Add in the bottom menu.
(3) In the right menu, select CH1 in the Source menu item.
(4) In the left Type menu, turn the M knob to select Period.
(5) In the right menu, select Add. The period type is added.
(6) In the left Type menu, turn the M knob to select Frequency.
(7) In the right menu, select Add. The frequency type is added.
The measured val ue will be displayed at the bottom left of the screen automatically

(see Figure 6-1).

6.Demonstration

86

Figure 6-1 Measure period and frequency value for a given signal

Example 2: Gain of a Amplifier in a Meterin g Circuit

The purpose of this example is to work out the Gain of an Amplifier in a Metering
Circuit. First we use Oscilloscope to measure the amplitude of input signal and output
signal from the circuit, then to work out the Gain by using given formulas.

Set the probe menu attenuation coefficient as 10X and that of the switch in the probe
as 10X (see "How to Set the Probe Attenuation Coefficient" on P12).

Connect the oscilloscope CH1 channel with the circuit signal input end and the CH2
channel to the output end.

Operation Steps:

(1) Push the Autoset button and the oscilloscope will automatically adjust the

waveforms of the two channels into the proper display state.

(2) Push the Measure button to show the Measure menu.
(3) Select Add in the bottom menu.

(4) In the right menu, select CH1 in the Source menu item.
(5) In the left Type menu, turn the M knob to select PK-PK.
(6) In the right menu, select Add. The peak-to-peak type of CH1 is added.

(7) In the right menu, select CH2 in the Source menu item.
(8) In the left Type menu, turn the M knob to select PK-PK.
(9) In the right menu, select Add. The peak-to-peak type of CH2 is added.

(10) Read the peak-to-peak v oltages of Channel 1 and Channel 2 from the bottom left

of the screen (see Figure 6-2).

(11) Calculate the amplifier gain with the following formulas.

6.Demonstration

87

Gain = Output Signal / Input signal
Gain (db) = 20×log (gain)

Figure 6-2 Waveform of Gain Me as ur e me nt

Example 3: Capturing a Single Signal

It's quite easy to use Digital Oscilloscope to capture non-periodic signal, such as a
pulse and burr etc. But the common problem is how to set up a trigger if you have no
knowledge of the signal? For example, if the pulse is the logic signal of a TTL level,
the trigger level should be set to 2 volts and the trigger edge be set as the rising edge
trigger. With various functions supported by our Oscilloscope, user can solve this
problem by taking an easy approach. First to run your test using auto trigger to find
out the closest trigger level and trigger type, this helps user to make few small
adjustments to achieve a proper trigger level and mode. Here is how we achieve this.

The operation steps are as follows:

(1) Set the probe menu attenuation coefficient to 10X and that of the switch in the

probe to 10X (see "How to Set the Probe Attenuation Coefficient" on P12).

(2) Adjust the Vertical Scale and Horizontal Scale knobs to set up a proper vertical

and horizontal ranges for the signal to be observed.

(3) Push the Acquire button to display the Acquire menu.
(4) Select Acqu Mode in the bottom menu. Select Peak Detect in the right menu.
(5) Push the Trigger Menu button to display the Trigger menu.
(6) Select the first menu item in the bottom menu. Select Single in the right menu.
(7) In the left menu, select Edge as the mode.
(8) Select Source in the bottom menu. Select CH1 in the right menu.

6.Demonstration

88

(9) Select Coupling in the bottom menu. Select DC in the right menu.
(10) In the bottom menu, select Slope as (rising).
(11) Turn the Trigger L evel knob and adjust the trigger level to the roughly 50% of

the signal to be measured.

(12) Check the Trigger State Indicator on the top of the screen, if it is not Ready, push

down the Run/Stop button and start acquiring, wait for trigger to happen. If a
signal reaches to the set trigger level, one sampling will be made and then
displayed in the screen. By using this approach, a random pulse can be captured
easily. For instance, if we want to find a burst burr of high amplitude, set the
trigger level to a slightly higher value of the average signal level, push the
Run/Stop button and wait a trigger. Once there is a burr occurring, the instrument
will trigger automatically and record the waveform during the period around the
trigger time. By turning the Horizontal Position knob in t he horizontal control
area in the panel, you can change the horizontal triggering position to obtain the
negative delay, making an easy observation of the waveform before the burr
occurs (see Figure 6-3).

Figure 6-3 Capturing a Single Signal

Example 4: Analyze the Details of a Signal

Noise is very common inside most of the electronic signal. To find out what's inside
the noise and reduce the level of noise is very important function our oscilloscope is
capable to offer.

Noise Analysis
The level of noise so metime indicates a fai lure of electronic ci rcuit. The Peak Dete ct

functions acts an important role to help you to find out the details of these noise. Here
is how we do it:

6.Demonstration

89

(1) Push the Acquire button to display the Acquire menu.
(2) Select Acqu Mode in the bottom menu.
(3) Select Peak Detect in the right menu.
The signal displayed on the screen containing some noise, by turning on Peak Detect

function and changing time base to slow down the incoming signal, any peaks or burr
would be detected by the function (see Figure 6-4).

Figure 6-4 Signal with Noises

Separate Noises from the Signal

When focusing on signal itself, the important thing is to reduce the noise level as
lower as possible, this would enable user to have more details about the signal. The
Average function offered by our Oscilloscope can help you to achieve this.

Here are the steps for how to enable Average function.
(1) Push the Acquire button to display the Acquire menu.
(2) Select Acqu Mode in the bottom menu.
(3) Select Average in the right menu, turn the M knob and observe the waveform

obtained from averaging the waveforms of different average number.

User would see a much reduced random noise level and make it easy to see more
details of the signal itself. After appl ying Average, user can easily identify the burrs
on the rising and falling edges of some part of the signal (see Figure 6-5).

6.Demonstration

90

Figure 6-5 Reduce Noise level by using Average function

Example 5: Application of X-Y Function

Examine the Phase Difference between Signals of two Channels

Example: Test the phase change of the signal after it passes through a circuit network.
X-Y mode is a very useful when examining the Phase shift of two related signals.

This example tak es you st ep by step to check out the phas e change of t he signal after
it passes a specified circuit. Input signal to the circuit and output signal from circuit
are used as source signals.

For the examination of the input and output of the circuit in the form of X-Y
coordinate graph, please operate according to the following steps:

(1) Set the probe menu attenuation coefficient for 10X and that of the switch in the

probe for 10X (see "How to Set the Probe Attenuation Coefficient" on P12).

(2) Connect the probe of channel 1 to the input of the network and that of Channel 2

to the output of the network.

(3) Push the Autoset button, with the oscilloscope turning on the signals of the two

channels and displaying them in the screen.

(4) Turn the Vertical Scale knob, making the amplitudes of two signals equal in the

rough.

(5) Push the Display button and recall the Display menu.
(6) Select X Y Mod e in the bottom menu. Select Enable as ON in the right menu.

The oscilloscope will display the input and terminal characteristics of the network
in the Lissajous graph form.

(7) Turn the Vertical Scale and Vertical Position knobs, optimizing the waveform.

6.Demonstration

91

The signal must be

(8) With the elliptical oscillogram method adopted, observe and calculate the phase

difference (see Figure 6-6).

centered and kept in the

horizontal direction.

Figure 6-6 Lissajous Graph

Based on the expression sin (q) =A/B or C/D, thereinto, q is the phase difference
angle, and the definitions of A, B, C, and D are shown as the graph above. As a result,
the phase differ ence angle can be obtained, nam ely, q =± arcsin (A/B) or ± arcsin
(C/D). If the principal axis of the ellipse is in the I and III quadrants, the determined
phase difference angel should be in the I and IV quadrants, that is, in the range of
(0 - π /2) or (3π / 2 - 2π). If the principal axis of the ellipse is in the II and IV
quadrants, the determined phase difference angle is in the II and III quadrants, that is,
within the range of (π / 2 - π) or (π - 3π /2).

Example 6: Video Signal Trigger

Observe the video circuit of a television, apply the video trigger and obtain the stable
video output signal display.

Video Field Trigger

For the trigger in the video field, carry out operations according to the following
steps:

(1) Push the Trigger Menu button to display the trigger menu.
(2) Select the first menu item in the bottom menu. Select Single in the right menu.

6.Demonstration

92

(3) In the left menu, select Video as the mode.
(4) Select Source in the bottom menu. Select CH1 in the right menu.
(5) Select Modu in the bottom menu. Select NTSC in the right menu.
(6) Select Sync in the bottom menu. Select Field in the right menu.
(7) Turn the Vertical Scale, Vertical Position and H orizontal Scale knobs to obt ain

a proper waveform display (see Figure 6-7).

Figure 6-7 Waveform Captured from Video Field Trigger

7.Troubleshooting

93

7. Troubleshooting

1. Oscilloscope is powered on but no Display.

 Check whether the power connection is connected properly.
 Check whether the fuse which is beside the AC power input jack is blew (the

cover can be pried open with a straight screwdriver).

 Restart the instrument after completing the checks above.
 If the problem persists, please contact OWON and we will be under your service.

2. After acquiring the signal, the waveform of the signal is not displayed in the

screen.

 Check whether the probe is properly connected to the signal connecting wire.
 Check whether the signal connecting wire is correctly connected to the BNC

(namely, the channel connector).

 Check whether the probe is properly connected with the object to be measured.
 Check whether there is any signal generated from the object to be measured (the

trouble can be shot by the connection of the channel from which there is a signal
generated with the channel in fault).

 Make the signal acquisition operation again.

3. The measured voltage amplitude value is 10 times or 1/10 of the actual value.

Look at the attenuation coefficient for the input channel and the attenuation ration of
the probe, to make sure they are match (see "How to Set the Probe Attenuation
Coefficient" on P12).

4. There is a waveform displayed, but it is not stable.

 Check whether the Source item in the TRIG MODE menu is in conformity with

the signal channel used in the practical application.

 Check on the trigger Type item: The common signal chooses the Edge trigger

mode for Type and the video signal the Video. If Alternate trigger is selected,
both of the channel 1 and channel 2 trigger levels should be adjusted to the
proper position. Only if a proper trigger mode is applied, the waveform can be
displayed steadily.

 Try to change the trigger coupling into the high frequency suppress and the low

frequency suppress to smooth the high frequency or low frequency noise
triggered by the interference. (Only for the models that have this function.)

5. No Display Responses to the Push-down of Run/Stop.

Check whether No rmal or Single is chosen for Po larity in the TRIG MODE menu and
the trigger level exceeds the waveform range.
If it is, make the tri gger level is center ed in the s creen or set th e trig ger mode as Au to.
In addition, with the Autoset button pressed, the setting above can be completed
automatically.

6. The displaying of wavefor m s eems getti ng slo w after increasing AVERAGE value

in Acqu Mode (see "How to Implement Sampling Setup" on P46 ), or a longer
duration is set in the Persist in Display (see "Persist" on P49).

It's normal as the Oscilloscope is working hard on many more data points.

8.Technical Specifications

94

Performance Characteristics

Instruction

Channel

2 + 1 (External)

Waveform Refresh Rate

55,000 wfms/s

Mode

Normal, Peak detect, Averaging

Dual CH

500 MS/s

8 bits
mode

12 bits
mode

Channel –channel
isolation

10MHz: 40 : 1

Time delay between
channel(typical)

mode

12 bits
mode

1 channel ON: max 20M.

8. Technical Specifications

Unless otherwise specified, the technical specifications applied are for XDS2000
dual-channel series only, and Probes attenuation set as 10X. Only if the oscilloscope
fulfills the following two conditions at first, these specification standards can be
reached.

 This instrument should run for at least 30 minutes continuously under the

specified operating temperature.

 If change of the operating temperature is up to or exceeds 5℃, do a

"Self-calibration" procedure (see "How to Implement Self-calibration" on P13).

All specification standards can be fulfilled, except one(s) marked with the word
"Typical".

Bandwidth 100 MHz

Vertical Resolution (A/D) 12 bits

Acquisition

Input

Horizontal
System

Sample rate
(real time)

Input coupling DC, AC , Ground
Input impedance
Input coupling
Max input voltage 1MΩ：≤300 Vrms
Bandwidth limit 20 MHz, full bandwidth

Sampling rate range

Interpolation (Sinx)/x, x

Single CH

1 MΩ±2%, in parallel with 15 pF±5 pF

0.001X - 1000X, step by 1 – 2 - 5

50Hz: 100 : 1

150ps

Dual CH

Single CH

0.05 S/s～500 MS/s

8 bits

1 GS/s

500 MS/s

0.05 S/s - 1 GS/s

0.05 S/s - 500 MS/s

Record length

2 channels ON: max 10M;

8.Technical Specifications

95

Performance Characteristics

Instruction

Sampling rate / relay
time accuracy

Single：

(1 interval time +1 ppm×reading+0.4 ns)

±200 V (2 V/div – 10 V/div)

Typical)

1 mV

3%

2 mV

2%

≥ 5 mV

1.5%

Delta Volts between any two averages of

±(3% rdg + 0.05 div)

V, △T, △T&△V between cursors,

auto cursor

Period, Frequency, Mean, PK-PK, RMS,
Max, Min, Top, Base, Amplitude, Overshoot,
Preshoot, Rise Time, Fall Time, +Pulse

Duty

, Cycle

RMS, Cursor RMS, Screen Duty, Phase,

Edge

, Area, and Cycle

Area.

, *, / ,FFT, FFTrms, Intg, Diff, Sqrt,

pass, high pass, band pass, band reject)

Decoding T y pe

RS232, I2C, SPI, CAN

Scanning speed (S/div) 2ns/div - 1000s/div, step by 1 – 2 - 5

±1 ppm (Typical, Ta = +25℃)

Vertical system

Interval(△T) accuracy

(DC - 100MHz)

±(1 interval time+1 ppm×reading+0.6 ns);
Average>16：

±

Sensitivity

Displacement

1 mV/div～10 V/div

±2 V (1 mV/div – 50 mV/div)；
±20 V (100 mV/div – 1 V/div)；

Analog bandwidth 100 MHz
Single bandwidth

Low Frequency

Rise time (at input,

Full bandwidth

≥10 Hz (at input, AC coupling, -3 dB)

≤ 3.5 ns

DC gain accuracy

DC accuracy (average)

≥16 waveforms acquired with the same

scope setup and ambient conditions (△V):

Waveform inverted ON/OFF

Cursor

Automatic

Measurement

Waveform Math

Waveform storage 50 waveforms

△

Width, -Pulse Width, +Duty Cycle, -

Cycle, Delay A→B , Delay A→B

+Pulse Count, -Pulse Count, Rise
Count, Fall Edge Count

＋, －

User Defined Function, digital filter (low