Micsig TO2002 User guide

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Table of Contents

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Version Info

Version

Date

Remarks

V1.0

2022.06

V1.1

2022.12

Added features, TO1004, etc.

V1.2

2024.04.09

Update Oscilloscope Interface Display, added FFT
persist, measure setting etc.

iv

Preface

Dear customers,

Congratulations! Thank you for buying Micsig instrument. Please read this manual carefully before use and
particularly pay attention to the “Safety Precautions”.

If you have read this manual, please keep it properly for future reference.

The information contained herein are furnished in an “as-is” state, and may be subject to change in future versions
without notice.

The standard applicable for this product: GB/T15288-2013.

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Features

Parameters:

 Channels: 4 x Analog Channel, 1 x Auxout Channel

 Analog Channel Bandwidth: Max. 300MHz

 Max. Real Time Sampling Rate: 2GSa/s

 Memory Depth: 220Mpts

 Max. Waveform Capture Rate: 300,000 wfms/s

 Vertical Sensitivity Range: 1mV/div~10V/div（1MΩ），1mV/div~1V/div（50Ω）

 Timebase Range: 1ns/div~1000s/div (TO1004 time base range is 2ns/div~1000s/div)

 10.1-inch seamless touch screen, 1280*800 resolution

 32GB Large Storage

 ABS+TPU shell protection, TPE handle, Compact Size at 265*192*50mm

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 Portable and Benchtop, built-in 7500mAh lithium battery, only 1.9kg

Functions:

 Equipped with Sigtest™ multitasking system, stable and reliable operation

 Built-in User Manual, large screen for easy reading

 Support channel label rename, quick setting of channel parameters

 Built-in AppStore, rich Android Apps: Electronic Tools, WPS, Browsers, etc.

 ES File Explorer support file management and FTP wireless transfer

 Waveform data saved in 3 formats (WAV, BIN, CSV)

 Support Screenshot, Timestamp and Color Inversion

 Support quick video recording

 Support wireless waveform screenshot printing

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 Support 256-level grayscale digital fluorescent display and color temperature display

 Support persistence display

 Support one-press zero calibration (TO1004 does not support this function), manual zero calibration

 Support 1MΩ/50Ω impedance switching (TO1004 does not support this function)

 Support segmented storage function, can capture up to 10,000 frames of waveforms in segments (TO1004 does not

support this function)

 Support open 4 reference waveforms at the same time, support fixed selection of current channel

 10 custom oscilloscope settings can be saved

 50% key, support one-key centering of time base, trigger level, cursor, and channel position

 Support 4 sampling methods: normal, average, envelope, peak-to-peak

 Support AutoSetting & AutoRange, AUTO complete in 1 second

 Up to 31 measurements, one-press to display all on screen, Support 6-bit frequency meter

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 Rich trigger functions: edge, pulse width, logic, N edge, runt, slope, timeout, video, UART, I2C, SPI, CAN,

CAN FD, LIN, 429, 1553B

 Rich serial bus decoding function (optional): UART, I2C, SPI, CAN, CAN FD, LIN, 429, 1553B, support 2

decoding channels, support decoding text mode

 Supports advanced mathematical functions: square root Sqrt(), absolute value Abs(), degree Deg(), radian Rad(),

exponent Exp(), differential Diff(), logarithm ln(), sine Sine(), cosine Cos(), Tangent Tan(), Integral Intg(),
Logarithmic Log(), arcsin(), arccos(), arctan(), built-in ZOOM and FFT functions

 Support High/Low pass hardware filtering (The adjustment range of TO3004 is 30Hz~300MHz, and TO1004 is 30kHz~100MHz), rule out

insignificant frequencies to eliminate interference

 Support power off lock for safe travel

 Complete interfaces: Wi-Fi, USB 3.0/2.0 Host, USB type-C, Grounding, HDMI, Trigger out

 Support PC software and mobile phone App remote control, support FTP file wireless transfer

 Support English, Chinese, German, French, Czech, Korean, Spanish, Italian and other languages

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 Support mouse operation

 Support anti-theft Kensington lock

 Support online firmware upgrade function

 Optional current probe, differential probe, optical isolated probe, special suitcase, handbag and other

oscilloscope accessories

Note: Unless otherwise specified, this user manual uses TO3004 as an example to illustrate the TO series and its basic operations.

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Table of Contents

TABLE OF CONTENTS ........................................................................................................................................................ X

CHAPTER 1. SAFETY PRECAUTIONS ................................................................................................................................... 1

1.1 SAFETY PRECAUTIONS .................................................................................................................................................... 1

1.2 SAFETY TERMS AND SYMBOLS ........................................................................................................................................ 5

CHAPTER 2. QUICK START GUIDE OF OSCILLOSCOPE ......................................................................................................... 8

2.1 INSPECT PACKAGE CONTENTS ........................................................................................................................................ 9

2.2 USE THE BRACKET ....................................................................................................................................................... 10

2.3 SIDE PANEL .................................................................................................................................................................. 12

2.4 REAR PANEL ................................................................................................................................................................ 13

2.5 TOP PANEL ................................................................................................................................................................... 15

2.6 FRONT PANEL .............................................................................................................................................................. 16

2.7 POWER ON/OFF THE OSCILLOSCOPE............................................................................................................................... 17

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2.8 UNDERSTAND THE OSCILLOSCOPE DISPLAY INTERFACE ................................................................................................. 18

2.9 INTRODUCTION BASIC OPERATIONS OF TOUCH SCREEN ................................................................................................. 24

2.10 MOUSE OPERATION .................................................................................................................................................... 26

2.11 CONNECT PROBE TO THE OSCILLOSCOPE ..................................................................................................................... 27

2.12 USE AUTO .................................................................................................................................................................. 28

2.13 LOAD FACTORY SETTINGS .......................................................................................................................................... 33

2.14 USE AUTO-CALIBRATION ............................................................................................................................................ 33

2.15 PASSIVE PROBE COMPENSATION ................................................................................................................................. 36

2.16 MODIFY THE LANGUAGE ............................................................................................................................................ 41

CHAPTER 3 HORIZONTAL SYSTEM .................................................................................................................................... 42

3.1 MOVE THE WAVEFORM HORIZONTALLY ........................................................................................................................ 44

3.2 ADJUST THE HORIZONTAL TIME BASE (TIME/DIV) ......................................................................................................... 45

3.3 PAN AND ZOOM SINGLE OR STOPPED ACQUISITIONS ...................................................................................................... 47

3.4 ROLL, XY .................................................................................................................................................................... 48

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3.5 ZOOM MODE ................................................................................................................................................................ 57

CHAPTER 4 VERTICAL SYSTEM ......................................................................................................................................... 60

4.1 OPEN/CLOSE WAVEFORM (CHANNEL, MATH, REFERENCE WAVEFORMS) ....................................................................... 62

4.2 ADJUST VERTICAL SENSITIVITY .................................................................................................................................... 67

4.3 ADJUST VERTICAL POSITION ......................................................................................................................................... 68

4.4 OPEN CHANNEL MENU ................................................................................................................................................. 68

4.4.1 Set Channel Coupling ............................................................................................................................................. 70

4.4.2 Set Bandwidth Limit .............................................................................................................................................. 73

4.4.3 Waveform Inversion .............................................................................................................................................. 75

4.4.4 Set Probe Type ....................................................................................................................................................... 76

4.4.5 Set Probe Attenuation Coefficient .......................................................................................................................... 77

4.4.6 Vertical Expansion Reference ................................................................................................................................. 79

4.4.7 Labels .................................................................................................................................................................... 79

4.4.8 Channel Input impendance .................................................................................................................................... 81

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CHAPTER 5 TRIGGER SYSTEM .......................................................................................................................................... 83

5.1 TRIGGER AND TRIGGER ADJUSTMENT ........................................................................................................................... 84

5.2 EDGE TRIGGER ............................................................................................................................................................. 97

5.3 PULSE WIDTH TRIGGER .............................................................................................................................................. 102

5.4 LOGIC TRIGGER .......................................................................................................................................................... 109

5.5 NTH EDGE TRIGGER ................................................................................................................................................... 115

5.6 RUNT TRIGGER ........................................................................................................................................................... 118

5.7 SLOPE TRIGGER .......................................................................................................................................................... 120

5.8 TIMEOUT TRIGGER ..................................................................................................................................................... 125

5.9 VIDEO TRIGGER ......................................................................................................................................................... 128

5.10 SERIAL BUS TRIGGER ............................................................................................................................................... 133

CHAPTER 6 ANALYSIS SYSTEM ....................................................................................................................................... 134

6.1 AUTOMATIC MEASUREMENT ....................................................................................................................................... 135

6.2 FREQUENCY METER MEASUREMENT ........................................................................................................................... 154

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6.3 CURSOR ..................................................................................................................................................................... 155

CHAPTER 7 SCREEN CAPTURE, MEMORY DEPTH AND WAVEFORM STORAGE ................................................................ 161

7.1 SCREEN CAPTURE FUNCTION ...................................................................................................................................... 162

7.2 VIDEO RECORDING ..................................................................................................................................................... 164

7.3 WAVEFORM STORAGE ................................................................................................................................................ 165

7.4 OSCILLOSCOPE SETTING SAVE ..................................................................................................................................... 172

CHAPTER 8 MATH AND REFERENCE ............................................................................................................................... 174

8.1 DUAL WAVEFORM CALCULATION ............................................................................................................................... 175

8.2 FFT MEASUREMENT .................................................................................................................................................. 180

8.3 ADVANCED MATH ........................................................................................................................................................... 187

8.4 REFERENCE WAVEFORM CALL .................................................................................................................................... 191

CHAPTER 9 DISPLAY SETTINGS ....................................................................................................................................... 196

9.1 WAVEFORM SETTINGS ................................................................................................................................................ 198

9.2 GRATICULE SETTING .................................................................................................................................................. 198

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9.3 PERSISTENCE SETTING ................................................................................................................................................ 199

9.4 HORIZONTAL EXPANSION CENTER............................................................................................................................... 202

9.5 COLOR TEMPERATURE SETTING .................................................................................................................................. 202

9.6 TIME BASE MODE SELECTION .................................................................................................................................... 203

CHAPTER 10 SAMPLING SYSTEM ................................................................................................................................... 204

10.1 SAMPLING OVERVIEW............................................................................................................................................... 205

10.2 RUN/STOP KEY AND SINGLE SEQ KEY ...................................................................................................................... 211

10.3 SELECT SAMPLING MODE ......................................................................................................................................... 212

10.4 RECORD LENGTH AND SAMPLING RATE ..................................................................................................................... 218

10.5 SEGMENTED MEMORY .............................................................................................................................................. 221

10.5.1 Segment number setting .................................................................................................................................. 222

10.5.2 Acquire Waveform ............................................................................................................................................ 224

10.5.3 Display and View .............................................................................................................................................. 225

10.5.4 Example of Segmented Storage ........................................................................................................................ 229

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CHAPTER 11 SERIAL BUS TRIGGER AND DECODE (OPTIONAL) ........................................................................................ 233

11.1 UART (RS232/RS422/RS485) BUS TRIGGER AND DECODE ...................................................................................... 238

11.2 LIN BUS TRIGGER AND DECODE ............................................................................................................................... 249

11.3 CAN(FD) BUS TRIGGER AND DECODE ...................................................................................................................... 257

11.4 SPI BUS TRIGGER AND DECODE ................................................................................................................................ 264

11.5 I2C BUS TRIGGER AND DECODE ................................................................................................................................ 271

11.6 ARINC429 BUS TRIGGER AND DECODE ................................................................................................................... 279

11.7 1553B BUS TRIGGER AND DECODE ........................................................................................................................... 287

CHAPTER 12 HOMEPAGE FUNCTIONS ............................................................................................................................ 295

12.1 OSCILLOSCOPE (SEE CHAPTERS 2~11) ....................................................................................................................... 297

12.2 APP STORE ............................................................................................................................................................... 297

12.3 SETTINGS ................................................................................................................................................................. 301

12.4 FILE MANAGER ........................................................................................................................................................ 308

12.5 CALCULATOR ........................................................................................................................................................... 308

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12.6 BROWSER ................................................................................................................................................................. 309

12.7 GALLERY ................................................................................................................................................................. 310

12.8 CALENDAR ............................................................................................................................................................... 313

12.9 ELECTRONIC TOOLS ................................................................................................................................................. 313

12.10 CLOCK ................................................................................................................................................................... 314

12.11 POWER OFF ............................................................................................................................................................ 318

12.12 ES FILE EXPLORER ................................................................................................................................................. 319

CHAPTER 13 REMOTE CONTROL .................................................................................................................................... 323

13.1 HOST COMPUTER...................................................................................................................................................... 324

13.1.1 Installation of Host Computer Software ............................................................................................................. 324

13.1.2 Connection of Host Computer ........................................................................................................................... 325

13.1.3 Main Interface Introduction............................................................................................................................... 327

13.1.4 Operation Interface Introduction ....................................................................................................................... 329

13.1.5 Storage and View of Pictures and Videos ........................................................................................................... 330

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13.2 MOBILE REMOTE CONTROL ...................................................................................................................................... 332

13.3 SCPI ........................................................................................................................................................................ 335

CHAPTER 14 UPDATE AND UPGRADE FUNCTIONS ......................................................................................................... 336

14.1 SOFTWARE UPDATE .................................................................................................................................................. 337

14.2 ADD OPTIONAL FUNCTIONS ...................................................................................................................................... 338

CHAPTER 15 REFERENCE ............................................................................................................................................... 341

15.1 MEASUREMENT CATEGORY ....................................................................................................................................... 342

15.2 POLLUTION DEGREE ................................................................................................................................................. 343

CHAPTER 16 TROUBLESHOOTING .................................................................................................................................. 345

CHAPTER 17 SERVICES AND SUPPORT ........................................................................................................................... 351

ANNEX .......................................................................................................................................................................... 353

ANNEX A:MAINTENANCE AND CARE OF OSCILLOSCOPE ................................................................................................... 353

ANNEX B: ACCESSORIES .................................................................................................................................................. 355

Chapter 1. Safety Precautions

1

Chapter 1. Safety Precautions

1.1 Safety Precautions

The following safety precautions must be understood to avoid personal injury and prevent damage to this product or

any products connected to it. To avoid possible safety hazards, it is essential to follow these precautions while using
this product.

⚫ Only professionally trained personnel can operate the maintenance procedure.

⚫ Avoid fire and personal injury.

⚫ Use proper power cord. Use only the power cord specified for this product and certified for the country/region

of use.

⚫ Connect and disconnect probes properly. Connect the instrument probe correctly, and its ground terminal is

ground phase. Do not connect or disconnect probes or test leads while they are connected to a voltage source.

2

Disconnect the probe input and the probe reference lead from the circuit under test before disconnecting the
probe from the measurement product.

⚫ Ground the product. To avoid electric shock, the instrument grounding conductor must be connected to

earth ground.

⚫ Observe all terminal ratings. To avoid fire or shock hazard, observe all rating and markings on the product.

Consult the product manual for further information of ratings before making connections to the product.

⚫ User correct probes. To avoid excessive electric shock, use only correct rated probes for any measurement.

⚫ Disconnect AC power. The adapter can be disconnected from AC power and the user must be able to access the

adapter at any time.

⚫ Do not operate without covers. Do not operate the product with covers or panels removed.

⚫ Do not operate with suspected failures. If you suspect that there is damage to this product, have it inspected

by service personnel designated by Micsig.

Chapter 1. Safety Precautions

3

⚫ Use adapter correctly. Supply power or charge the equipment by power adapter designated by Micsig, and

charge the battery according to the recommended charging cycle.

⚫ Avoid exposed circuitry. Do not touch exposed connections and components when power is present.

⚫ Provide proper ventilation.

⚫ Do not operate in wet/damp conditions.

⚫ Do not operate in a flammable and explosive atmosphere.

⚫ Keep product surfaces clean and dry.

⚫ The disturbance test of all models complies with Class A standards, based on EN61326:1997+A1+A2+A3,

but do not meet Class B standards.

Measurement Category

The Smart series oscilloscope is intended to be used for measurements in Measurement Category I.

4

Measurement Category Definition

Measurement category I is for measurements performed on circuits not directly connected to the MAINS. Examples

are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits.

In the latter case, transient stresses are variable; for that reason, the user must understand the transient withstand
capability of the equipment.

Warning

IEC Measurement Category. Under IEC Category I mounting conditions, the input terminal can be connected to the

circuit terminal with a maximum line voltage of 300Vrms. To avoid the risk of electric shock, the input terminal

should not be connected to the circuit with a line voltage greater than 300Vrms. Instantaneous overvoltage is

present in circuits that are isolated from the mains supply. The Smart series digital oscilloscope is designed to safely

withstand sporadic transient overvoltage up to 1000Vpk. Do not use this equipment for any measurements in
circuits where the instantaneous overvoltage exceeds this value.

Chapter 1. Safety Precautions

5

1.2 Safety Terms and Symbols

Terms in the manual

These terms may appear in this manual:

Warning. Warning statements indicate conditions or practices that could result in injury or loss of life.

Caution. Caution statements indicate conditions or practices that could result in damage to this product or

other property.

Terms on the product

These terms may appear on the product:

Danger indicates an injury hazard immediately accessible as you read the marking.

Warning indicates an injury hazard not immediately accessible as you read the marking.

Caution indicates a hazard to this product or other properties.

6

Symbols on the product

The following symbols may appear on the product:

Hazardous Voltage Caution Refer to Manual Protective Ground Terminal

Chassis Ground Measurement Ground Terminal

Please read the following safety precautions to avoid personal injury and prevent damage to this product or

any products connected to it. To avoid possible hazards, this product can only be used within the specified

scope.

Warning

If the instrument input port is connected to a circuit with the peak voltage higher than 42V or the power exceeding

4800VA, to avoid electric shock or fire:

Chapter 1. Safety Precautions

7

⚫ User only insulated voltage probes supplied with the instrument, or the equivalent product indicated in the

schedule.

⚫ Before use, inspect voltage probes, test leads, and accessories for mechanical damage and replace when

damaged.

⚫ Remove voltage probes and accessories not in use.

⚫ Plug the battery charger into the AC outlet before connecting it to the instrument.

8

Chapter 2. Quick Start Guide of Oscilloscope

This chapter contains checks and operations of the oscilloscope. You are recommended to read them carefully to
understand appearance, power on/off, settings and related calibration requirements of the Smart series oscilloscope.

⚫ Inspect package contents

⚫ Mouse operation

⚫ Use bracket

⚫ Connect probe to the oscilloscope

⚫ Side panel & rear panel

⚫ Use automatic

⚫ Front panel

⚫ Use factory settings

⚫ Power on/off the oscilloscope

⚫ Use auto-calibration

⚫ Understand the oscilloscope display interface

⚫ Passive probe compensation

⚫ Introduction to basic operations of oscilloscope

⚫ Modify the language

Chapter 2. Quick Start Guide of Oscilloscope

9

2.1 Inspect Package Contents

When you open package after receipt, please check the instrument according to the following steps.

1) Inspect if there is any damage caused by transportation

If the package or foam is found to be severely damaged, please retain it until the instrument and accessories

pass the electrical and mechanical properties test.

2) Inspect the accessories

A detailed description is given in “Annex B” of this manual. You can refer it to check if the accessories are

complete. If the accessories are missing or damaged, please contact Micsig’s agent or local office.

3) Inspect the instrument

If any damage to oscilloscope is found by the appearance inspection or it fails to pass the performance test,

please contact Micsig’s agent or local office. If the instrument is damaged due to transportation, please retain
the package and contact the transportation company or Micsig’s agent, and Micsig will make arrangement.

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2.2 Use the Bracket

Put the front panel of the oscilloscope flatly on the table. Use your two index fingers to hold the underside of the
bracket and open the bracket by slightly upwards force, as shown in Figure 2-1.

Chapter 2. Quick Start Guide of Oscilloscope

11

Figure 2-1 Open Bracket

12

2.3 Side Panel

Figure 2-2 Side Panel

There are various interfaces on the side of the oscilloscope, from left to right: Power-on button, Grounding, Probe
compensation signal output, USB Host, HDMI, USB Device, Power-off lock, and Power port.

Chapter 2. Quick Start Guide of Oscilloscope

13

2.4 Rear Panel

Figure 2-3 Rear Panel

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a) Ch1 – Ch4 are signal measurement channels

b) Aux out is an auxiliary channel, which is mainly used to measure the waveform refresh rate of the oscilloscope

and cascade the current oscilloscope signal to other oscilloscopes.

Chapter 2. Quick Start Guide of Oscilloscope

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2.5 Top Panel

Figure 2-4 Top Panel of Tablet Oscilloscope

On top of the oscilloscope is the BNC interface for probe connection.

16

2.6 Front Panel

Figure 2-5 Front Panel of Tablet Oscilloscope

Chapter 2. Quick Start Guide of Oscilloscope

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2.7 Power on/off the Oscilloscope

Power on/off the oscilloscope

First time start

⚫ Connect power adapter to the oscilloscope, and the oscilloscope should not be pressed on the adapter cable.

⚫ Check the Power-off lock on the side of oscilloscope and press the power button to start the instrument.

Power on

⚫ Press the power button to start the instrument while ensuring it is connected to a power supply.

Power off

⚫ Press the power button , go to power-off interface, and click to turn off the instrument.

⚫ Long press the power button for forced power-off of the instrument.

Power-off lock

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⚫ Turn the power-off lock switch to OFF, the oscilloscope cannot be turned on.

Caution: Forced power-off may result in loss of unsaved data, please use with caution.

2.8 Understand the Oscilloscope Display Interface

This section provides a brief introduction and description of the Smart Series oscilloscope user’s interface. After

reading this section, you can be familiar with the oscilloscope display interface content within the shortest possible

time. The specific settings and adjustments will be detailed in subsequent chapters and sections. The following

items may appear on the screen at a given time but not all items are visible. The oscilloscope interface is shown in
Figure 2-6.

Chapter 2. Quick Start Guide of Oscilloscope

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Figure 2-6 Oscilloscope Interface Display

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No.

Description

1

Micsig logo

2

Oscilloscope status, including RUN, STOP, WAIT, Auto；Tap to switch to STOP

3

Trigger point

4

Sampling rate, memory depth

5

The area in “[]” indicates the position of waveform displayed on the screen throughout the memory
depth

6

Delay time, the time at which the center line of the waveform display area is relative to the trigger
point

7

Center line of waveform display area

8

Memory depth indicatrix

9

Current trigger type indication

10

Current trigger source, trigger level

Chapter 2. Quick Start Guide of Oscilloscope

21

No.

Description

11

Trigger level indicator

12

CH1、CH2、CH3、CH4 channel icons and vertical sensitivity icon. Tap the channel icons to open

channels; Click or to adjust the vertical sensitivity of channels; Open the channel menu by

swipe left from the desired channel and swipe right to close; Display the vertical sensitivity of
channels; Display couple method.

13

Trigger level adjustment, press on the button to modify the trigger level through upward and
downward movements.

14

Display areas of USB-PC connection, USB connection, battery level, time etc.

15

Trigger Mode: A(auto), N(Normal).

16

Horizontal and vertical cursors open and close.

17

Current channel selection. Click to pop up the current channel switching menu to switch the current
channel.

22

No.

Description

18

Horizontal time base control icon. Tap the left/right time base buttons to adjust the horizontal time

base of the waveform. Tap the time base to open the time base table. Tap to select the desired time
base.

19

Quick save. Tap to quickly save the waveform as a reference waveform.

20

Fine adjustment button. Tap the button to finely adjust the last operation, including waveform
position, trigger level position, trigger point and cursor position.

21

The vertical position value of the channel indicator.

22

Channel indicator can indicate the zero-level position of the open channel.

23

Trigger quick start menu indicator: swipe left to open trigger quick start menu

24

Sample Mode: Normal, Average, Envelope, Peak

25

Auto Set, AutoRange

26

SEQ, Single Sequence Acquisition

Chapter 2. Quick Start Guide of Oscilloscope

23

No.

Description

27

50%: Touch to set:

⚫ The vertical position of the current channel waveform to the zero point
⚫ The horizontal position of the current channel waveform to center of the screen
⚫ The trigger level to the center of the trigger channel's waveform
⚫ The activecursor back to the center of the scree

28

Home

29

The horizontal position value of the trigger position indicator.

Table 2-1 Description of Oscilloscope Display Interface

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2.9 Introduction Basic Operations of Touch Screen

The Smart Series oscilloscope operates mainly by tap, swipe, single-finger drag.

Tap

Tap button on the touch screen to activate the corresponding menu and function. Tap any blank space on the screen
to exit the menu.

Swipe

Single-finger swipe: to open/close menus, including main menu, shortcut menu button and other channel menu

operations. For example, the main menu is opened as shown in Figure 2-7. The closing method is the opposite of
the opening method.

Chapter 2. Quick Start Guide of Oscilloscope

25

Figure 2-7 Slide out of Main Menu

Tap the options in the main menu to enter the corresponding submenu.

26

Single-finger drag

For coarse adjustments of vertical position, trigger point, trigger level, cursor, etc. of the waveform. Refer to “4.1

Horizontal Move Waveform” and “5.3 Adjust Vertical Position” for details.

2.10 Mouse Operation

Connect the mouse to the “USB Host” interface, then operate the oscilloscope with the mouse. The left button, right

button and scroll wheel of the mouse have the same functions as the finger touch function. Figure 2-8 is a schematic
diagram of the mouse single click to select “Run/Stop” function under the “Menu” option in the “Short-cut Menus”.

Chapter 2. Quick Start Guide of Oscilloscope

27

Figure 2-8 Mouse Cursor

2.11 Connect Probe to the Oscilloscope

1) Connect the probe to the oscilloscope channel BNC connector.

2) Connect the retractable tip on the probe to the circuit point or measured equipment. Be sure to connect the

probe ground wire to the ground point of the circuit.

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Maximum input voltage of the analog input

Category I 300Vrms, 400Vpk.

2.12 Use Auto

Once the oscilloscope is properly connected and a valid signal is input, tap the Auto Set button to quickly
configure the oscilloscope to be the best display effects for the input signal. While the oscilloscope in auto state, the

Auto Set button will turn to green .

Auto is divided into Auto Set and Auto Range. It is defaulted as Auto Set.

Auto Set — Single-time auto, and each time press “Auto”, the screen displays “Auto” in the upper left corner. The

oscilloscope can automatically adjust the vertical scale, horizontal scale and trigger setting according to the

amplitude and frequency of signals, adjust the waveform to the appropriate size and display the input signal. After
adjustments, exit from the auto set, the “Auto” in the upper left corner disappears.

Channels may be automatically opened. Any channel greater or less than the threshold level can be opened or
closed automatically according to the set threshold level. The threshold level can be settable.

Chapter 2. Quick Start Guide of Oscilloscope

29

Source can be automatically triggered, and the triggered source channel can be automatically set to select priority to
the current signal or to the maximum signal.

Open the main menu. Tap “Auto” to open the auto set menu, including channel open/close setting, threshold voltage
setting and trigger source setting.

Figure 2-9 Open Auto Set

Automatic configuration includes: single channel and multiple channels; automatic adjustment of the horizontal

time base, vertical sensitivity and trigger level of signal; the oscilloscope waveform is inverted off, the bandwidth

limit sets to full bandwidth, it sets as DC coupling mode, the sampling mode is normal; the trigger type is set to
edge trigger and the trigger mode is automatic.

30

Note: The application of Auto Set requires that the frequency of measured signal is no less than 20Hz, the duty ratio
is greater than 1% and the amplitude is at least 2mVpp. If these parameter ranges are exceeded, Auto Set will fail.

Figure 2-10 Auto Set Waveform

Auto Range - Continuously automatic, the oscilloscope continuously adjusts the vertical scale, horizontal time base

and trigger level in a real-time manner according to the magnitude and frequency of signal. It is defaulted as off and
needs to be opened in the menu. This function is mutually exclusive with “Auto Set”.

Chapter 2. Quick Start Guide of Oscilloscope

31

Open the main menu and tap “Auto” to open the auto range menu for the corresponding settings. When the

oscilloscope auto range function is turned on, the oscilloscope will automatically set various parameters, including:

vertical scale, horizontal time base, trigger level, etc. When the signal is connected, these parameters will

automatically change, and the signal does not need to be operated again after the change. The oscilloscope will
automatically recognize and make the appropriate changes.

⚫ Auto range: Turn the auto range function on or off

⚫ Vertical scale: Turn on the vertical scale automatic adjustment function;

⚫ Horizontal time base: Turn on the horizontal time base automatic adjustment function;

⚫ Trigger level: Turns on the auto-adjust trigger level function.

32

Figure 2-11 Open Auto Range

Auto Range is usually more useful than Auto Set under the following situations:

1) It can analyze signals subject to dynamic changes.

2) It can quickly view several continuous signals without adjusting the oscilloscope. This function is very useful

if you need to use two probes at the same time, or if you can only use the probe with one hand because the
other hand is full.

3) Control the automatic adjustment setting of the oscilloscope.

Chapter 2. Quick Start Guide of Oscilloscope

33

2.13 Load Factory Settings

Open the main menu, tap “User Settings” to enter the user setting page. Tap “Factory Settings” and the dialog box

for loading factory settings will pop-up. Press “OK” and load the factory settings. The dialog box for loading
factory settings is shown in Figure 2-12.

Figure 2-12 Load Factory Settings

2.14 Use Auto-calibration

Open the main menu, tap “Userset” to enter the user setting page. Select “Self Adjust” and tap “OK” to enter the

auto-calibration mode. When the auto-calibration function is active, the upper left corner of the screen displays

34

“Calibrating” in red, and after calibrating is finished, the word in red disappears. When the temperature changes
largely, the auto-calibration function can make the oscilloscope maintain the highest accuracy of measurement.

⚫ Auto-calibration should be done without probe.

⚫ Auto-calibration process takes about two minutes.

⚫ If the temperature changes above 10℃, we recommended users perform the auto-calibration.

One-press zero calibration - Swipe up to open the bottom menu, and click to perform zero calibration.

When the zero calibration function is activated, there will be a red font in the upper left corner of the screen

showing "Auto zero calibration in progress". After the zero calibration is completed, the red font disappears. One-

press zero calibration can quickly solve the problem of zero drift caused by ambient temperature difference.
Compared with self-adjust, one-press zero calibration can be set within 5 seconds.

Chapter 2. Quick Start Guide of Oscilloscope

35

Manual zero calibration- The oscilloscope supports manual zero calibration for each channels. Click the "Fine"

button in the lower left corner would open the forced channel selection menu and display the offset value, select the

channel to be adjusted, and slide the waveform up and down to manually adjust the zero position. Tap“△”,
“▽”button can fine-tune the zero position, as shown in Figure 2-13

Figure 2-13 Manual zero calibration

36

2.15 Passive Probe Compensation

Before connecting to any channels, users should make a probe compensation to ensure the probe match the input

channel. The probe without compensation will lead to larger measurement errors or mistakes. Probe compensation
can optimize the signal path and make measurement more accurate. If the temperature changes 10℃ or above, this
program must run to ensure the measurement accuracy.

Probe compensation may be conducted in the following steps:

1) First, connect the oscilloscope probe to CH1. If a hook head is used, make sure that it is in good connection

with the probe.

2) Connect the probe to the calibration output signal terminal and connect the probe ground to the ground

terminal. As shown in Figure 2-14.

Chapter 2. Quick Start Guide of Oscilloscope

37

Figure 2-14 Probe Connection

3) Open the channel (if the channel is closed).

4) Adjust the oscilloscope channel attenuation coefficient to match the probe attenuation ratio.

38

5) Tap button or manually adjust the waveform vertical sensitivity and horizontal time base. Observe the

shape of the waveform, see Figure 2-15.

Figure 2-15 Probe Compensation

Chapter 2. Quick Start Guide of Oscilloscope

39

If the waveform on the screen is shown as “under-compensation” or “over-compensation”, please adjust the

trimmer capacitor until the waveform shown on the screen as “correct-compensation”. The probe adjustment is
shown in Figure 2-16.

Figure 2-16 Probe Adjustment

40

The safety ring on the probe provides a safe operating range. Fingers should not exceed the safety ring when using
the probe, so as to avoid electric shock.

6) Connect the probe to all other oscilloscope channels (Ch2 of a 2-channel oscilloscope, or Ch 2, 3 and 4 of a 4-

channel oscilloscope).

7) Repeat this step for each channel.

Warning

⚫ Ensure the wire insulation is in good condition to avoid probe electric shock while measuring high voltage.

⚫ Keep your fingers behind the probe safety ring to prevent electric shock.

⚫ When the probe is connected a voltage source, do not touch metal parts of the probe-head to prevent electric

shock.

⚫ Before any measurement, please correctly connect the probe ground end.

Chapter 2. Quick Start Guide of Oscilloscope

41

2.16 Modify the Language

To modify the display language, please refer to “12.3 Settings - Language and Input Method”.

42

Chapter 3 Horizontal System

This chapter contains the detailed information of the horizontal system of the oscilloscope. You are recommended

to read this chapter carefully to understand the set functions and operation of the horizontal system of the Smart
series oscilloscope.

⚫ Move the waveform horizontally

⚫ Adjust the horizontal time base (time/div)

⚫ Pan and zoom single or stopped acquisitions

⚫ Roll, XY

⚫ Zoom mode

Chapter 3 Horizontal System

43

Figure 3-1 Horizontal system

44

3.1 Move the Waveform Horizontally

Put one finger on the waveform display area to swipe left and right, for the coarse adjustment of the waveform

position horizontally of all analog channels; after moving the waveform, tap the fine adjustment button in the lower
left corner of the screen for fine adjustment.

Figure 3-2 Move the Waveform Horizontally on the Screen

Chapter 3 Horizontal System

45

3.2 Adjust the Horizontal Time Base (time/div)

Method 1: Soft Keys

Tap , buttons to adjust the horizontal time base of all analog channels (current channels). Tap button

to increase the horizontal time base; tap button to zoom out the horizontal time base (see Figure 3-3 Adjust the

Horizontal Time Base). The horizontal time base is stepped in 1-2-5, while the waveform changes as the time base
changes.

46

Figure 3-3 Adjust the Horizontal Time Base

Method 2: Time Base Knob

Tap to open the time base list (see Figure 3-4 Horizontal Time Base List), then tap the list to select the
appropriate time base. The time base with the blue filled background is the currently selected time base.

Chapter 3 Horizontal System

47

Figure 3-4 Horizontal Time Base Knob

3.3 Pan and Zoom Single or Stopped Acquisitions

After the oscilloscope is stopped, the stopped display screen may contain several acquired data with useful

information, but only the data in the last acquisition can be horizontally moved and zoomed. The data of the single

48

acquisition or stopped acquisition is moved horizontally and zoomed. For details, refer to “3.1 Move the Waveform

Horizontally” and “3.2 Adjust the Horizontal Time Base (time/div)”.

3.4 Roll, XY

In the main menu, tap the soft key , then select the desired time base mode. The time base mode is divided
into YT, ROLL, and XY.

Figure 3-5 Display Mode

YT——Normal View Mode of Oscilloscope

Chapter 3 Horizontal System

49

In YT mode, the relative relationship between vertical voltage and horizontal time is displayed. Y axis represents

the voltage, X axis represents the time, and the waveform is displayed after triggering (waveform displayed from
left to right).

Note: When the time base is large (such as 200ms and above), sometimes the waveform will not be displayed for a

long time; this is because in YT mode, the waveform must be triggered before display. It is closely related to the

time base and can be roughly calculated as: the number of divisions on the left side of the trigger position * time
base level position; if you want to reduce the waiting time, move the trigger position to the left.

The case that trigger position is moved out of the waveform screen is not considered here.

ROLL—— ROLL Mode

In ROLL mode, the waveform rolls from right to left to refresh the display (see Figure 3-6 ROLL Mode). The
horizontal time base adjustment range of the ROLL mode in the running state is 200ms/div~1ks/div.

In ROLL mode, trigger related information is invalid, including trigger position, trigger level, trigger voltage, etc.

50

Figure 3-6 ROLL Mode

In ROLL mode, press to stop waveform display; press again to clear waveform display and restart

acquisition; press to execute single sequence, it will stop automatically after completing a full screen
acquisition.

ROLL mode is generally used to observe waveforms with frequencies below 5 Hz.

Chapter 3 Horizontal System

51

ROLL mode is defaulted as open. When the time base is greater than 100ms, it automatically enters the ROLL
mode. If the signal to be triggered under a large time base needs to be viewed, turn off the ROLL mode.

Roll mode on and off: In the main menu, tap the soft key . In the “Common” option, you can turn the roll
mode on and off (refer to Figure 3-7). When the roll mode is on and the time base is within 200ms~1ks, the

oscilloscope automatically enters the roll mode.

Figure 3-7 Roll Mode On/Off

52

XY——XY Mode

The vertical amount of CH1 is displayed on the horizontal axis in XY mode, and the vertical amount of CH2 is
displayed on the vertical axis (see Figure 3-8 XY Mode).

You can use XY mode to compare the frequency and phase relationship of two signals.

XY mode can be used for sensors to display stress-displacement, flow-pressure, voltage-frequency or voltage­current, for example: plotting a diode curve.

You can also use the cursor to measure the waveform in XY mode.

Chapter 3 Horizontal System

53

Figure 3-8 XY Mode

XY Mode Example

This exercise shows the usual practice of XY display mode by measuring the phase difference between two signals
of the same frequency using the Lissajous method.

54

1) Connect sine wave signals to CH1 and connect sine wave signals of the same frequency and different phases to

CH2.

2) Press “Auto” set button, tap “Display” in the main menu, then select “XY” in “Time Base”.

3) Drag signals so that they are centered on the display screen. Adjust the vertical sensitivity of CH1 and CH2,

and extend signals for viewing.

The phase difference (θ) can be calculated using the following formula (assuming that the amplitudes of the

two channels are the same):

 










Chapter 3 Horizontal System

55

Figure 3-9 XY Time Base Mode Signal, Center on the Display Screen

4) Tap the “Cursor” button to open the horizontal cursor.

5) Set the cursor y2 at the top of the signal and the cursor y1 at the bottom of the signal. Record the Δy value in

the upper right corner of the screen.

6) Move y1 and y2 cursors to the intersection point of the signal and the y-axis. Record the Δy value again.

56

Figure 3-10 Phase Difference Measurement and Using the Cursor

7) The following formula is used to calculate the phase difference.

;

For example, if the first Δy value is 9.97V, the second Δy value is 5.72V:

;





Chapter 3 Horizontal System

57

3.5 Zoom Mode

Zoom is a horizontally expanded version of the normal display. Open the zoom function, the display is divided into

two parts (see Figure 3-11 Zoom Interface). The upper part of the display screen shows the normal display window
view and the lower part shows the zoomed display window.

Figure 3-11 Zoom Interface

58

Zoom window view is the enlarged portion of the normal display window. You can use “Zoom” to view a portion

of the normal window that is horizontally expanded to learn more about signal analysis.

Zoom on/off:

Open the pull-up menu and tap button to turn the zoom function on/off.

Zoom window is framed in a box on the normal window, and the other portion is covered by gray shade not
displayed in the zoom window. This box shows the normal scan portion that was zoomed in the lower bottom.

Tap the time base button to adjust the time base of the zoom window. The size of the box in the normal window
changes according to the time base of the zoom window.

Drag the waveform of the zoom window horizontally to adjust the waveform position. The box in the main window
moves oppositely against the waveform; or directly drag the box in the normal window to quickly locate the
waveform to be viewed.

Chapter 3 Horizontal System

59

Note:

1) The minimum time base is displayed in the normal window when the waveform in the screen is exactly within

the memory depth. If the current time base is smaller than the minimum time base in the normal window at the

current memory depth, when the zoom window is opened, the time base in the normal window is automatically
set to the minimum time base in the normal window at the current memory depth.

2) The cursor, math waveform, and reference waveform are not displayed in the normal window, but can be

displayed in the Zoom window.

3) If Roll mode is stopped, Zoom mode can be turned on, and tap “Run/Stop” to automatically turn off Zoom

mode.

60

Chapter 4 Vertical System

This chapter contains the detailed information of the vertical system of the oscilloscope. You are recommended to

read this chapter carefully to understand the set functions and operation of the vertical system of the Smart series
oscilloscope.

⚫ Open/close channel, set the current channel

⚫ Set probe type

⚫ Adjust vertical sensitivity

⚫ Set probe attenuation coefficient

⚫ Adjust vertical position

⚫ Vertical expansion reference

⚫ Open channel menu

⚫ Set channel coupling

⚫ Set bandwidth limit

⚫ Waveform inversion

Chapter 4 Vertical System

61

The figure below shows the “CH1 Channel Menu” displayed after opening the CH1 channel menu.

Figure 4-1 Channel Menu Display Interface

The ground level of each displayed analog channel signal is indicated by the channel indicator icon on the far
left of the display screen.

62

4.1 Open/Close Waveform (Channel, Math, Reference Waveforms)

The channel icons , , , , on the right side of the oscilloscope waveform display

area (swipe up or down to switch to math channel and reference channel) correspond to the six channels of CH1,

CH2, CH3, CH4, math function and reference channel. The channel icons in open state will shows like , ,

, , , . Swipe right to close the desired channel.

Current channel: The oscilloscope can display multiple waveforms at the same time, but only one waveform is

preferentially displayed on the uppermost layer, and the channel that is preferentially displayed on the uppermost

layer is called the current channel. The channel indicator for the current channel is solid, and the channel indicator
for the non-current channel is hollow, as shown in Figure 4-2.

Chapter 4 Vertical System

63

Figure 4-2 Current Channel and Non-Current Channel

The display content of the oscilloscope channel display interface includes the vertical scale, vertical scale
sensitivity button, coupling mode, invert, bandwidth limitation of the channel, as shown in Figure 5-3.

64

Figure 4-3 Channel Display Interface

When CH1 is on, but the state is not the current channel, tap CH1 waveform or vertical sensitivity or channel

indicator or vertical sensitivity button or current channel selection button to set CH1 as the current channel, as
shown in Figure 4-4.

Chapter 4 Vertical System

65

Figure 4-4 Channel Open, Close and Switching

66

Figure 4-5 Using the Current Channel Selection Button

Tap the current channel icon at the bottom of the screen to pop up the current channel switching menu and press the

button to light it up, as shown in Figure 4-5. Tap the button in the menu to switch the current channel. When this
function is opened:

Chapter 4 Vertical System

67

a. the current channel may be switched in the channel switching menu;

b. the current channel menu can be moved anywhere on the screen;

c. only the open channel is displayed in the channel switching menu;

d. when the math or reference waveform is opened, the current channel switching menu is automatically opened.

4.2 Adjust Vertical Sensitivity

Tap the vertical sensitivity or buttons on the right side of the channel icon to adjust the vertical display

of the waveform corresponding to the channel, so that the waveform is displayed on the screen at an appropriate
size.

The vertical sensitivity scale (V/div) after each adjustment is displayed on the channel icon. For example,
means that the current vertical sensitivity of CH1 is 1.0V/div.

68

The vertical sensitivity coefficient adjusts the vertical sensitivity of the analog channel in steps of 1-2-5 (the probe

attenuation coefficient is 1X), and the vertical sensitivity range of 1:1 probe is 1mV/div-10V/div (optionally
minimum at 500uV/div).

4.3 Adjust Vertical Position

The method of adjusting vertical position is as follows:

1) Coarse adjustment: In the waveform display area, hold the waveform and put one finger to slide up and down

for changing the vertical position of the waveform.

2) Fine adjustment: Click the fine adjustment button in the lower left corner of the screen to fine adjust the

vertical position of the waveform for the current channel.

4.4 Open Channel Menu

Right swipe the channel icon to open the desired channel menu.

Chapter 4 Vertical System

69

The channel menu is shown in Figure 4-6. Channel waveform inversion, channel bandwidth limit, probe type, probe

attenuation factor, channel coupling mode, vertical expansion reference, channel label and channel on/off can be set
in the vertical menu.

Figure 4-6 Channel menu

70

4.4.1 Set Channel Coupling

Tap the icon under “Coupling Mode” and select “DC”, “AC” and “GND” channel coupling modes in the pop-up
box.

DC: DC coupling. Both the DC component and the AC component of the measured signal can pass, and can be
used to view waveforms as low as 0 Hz without large DC offset.

AC: AC coupling. Measured DC signal is blocked, and only the AC component can be allowed to pass, and used to
view waveforms with large DC offsets.

GND: Internal input ground, disconnecting from external input.

The oscilloscope is connected to the square wave signal with a frequency of 1KHz, an amplitude of 2V and an
offset of 1V. The waveforms of the channel couplings of DC, AC, and GND are shown in Figures 4-7, 4-8, and 4-9.

Chapter 4 Vertical System

71

Figure 4-7 DC Coupling Figure 4-8 AC Coupling

72

Figure 4-9 GND Coupling

Note: This setting is only valid for the current channel. To switch from the current channel, just tap the channel

icon, channel indicator icon or horizontal position pointed by the channel indicator icon for direct switching. You do
not need to exit the menu.

Chapter 4 Vertical System

73

4.4.2 Set Bandwidth Limit

Open the channel menu, find the “Bandwidth” selection box in the channel menu, set bandwidth limit, high-pass
filtering and low-pass filtering as needed.

Full Bandwidth: Allows signals of all frequencies to pass.

20M Bandwidth: Only signals with frequencies below 20MHz are allowed to pass, and signals above 20MHz are
effectively attenuated.

High Pass: Only signals above the lower limit of the currently set frequency are allowed to pass.

Select high pass, tap the frequency box , open the frequency setting interface, drag or tap the bottom
slide bar for coarse adjustment of the maximum frequency allowed to pass, drag the top slide bar to precisely adjust

the frequency.

Low pass: Only signals below the currently set frequency upper limit are allowed to pass. (with the settings same as
High Pass)

74

For TO3004, high-pass filtering and low-pass filtering can be set within the frequency range of 30Hz-300MHz.

The difference in bandwidth limitation can be visualized by the waveform. The full bandwidth is shown in Figure
4-10, the 20M bandwidth is shown in Figure 4-11, the high pass is shown in Figure 4-12, and the low pass is shown
in Figure 4-13.

Figure 4-10 Full Bandwidth

Figure 4-11 20M Bandwidth

Chapter 4 Vertical System

75

Figure 4-12 High Pass

Figure 4-13 Low Pass

4.4.3 Waveform Inversion

After selecting “Invert”, the voltage value of the displayed waveform is inverted. Inversion affects the way the
channel is displayed. When using a basic trigger, you need to adjust the trigger level to keep the waveform stable.

76

Figure 4-14 Before Inversion Figure 4-15 After Inversion

4.4.4 Set Probe Type

Probe types are divided into voltage probe and current probe.

Probe type adjustment steps:

Open the channel menu, find the “Probe Type” checkbox in the channel menu, then select:

⚫ Vol - corresponding the voltage probe.

Chapter 4 Vertical System

77

⚫ Cur - corresponding the current probe.

4.4.5 Set Probe Attenuation Coefficient

When measuring with a probe, the correct measurement result can only be obtained by setting the correct probe
attenuation ratio. In order to match the actual probe attenuation ratio, it is necessary to adjust the channel
attenuation factor correspondingly under the channel menu. When probe attenuation ratio is changed, the
corresponding attenuation ratio must be set on the channel menu to ensure the correctness of the waveform
amplitude and measurement result displayed by the oscilloscope.

78

Probe attenuation ratio and menu attenuation ratio are shown in the table below:

Probe attenuation ratio
Menu attenuation ratio

Probe attenuation ratio
Menu attenuation ratio

Probe attenuation ratio
Menu attenuation ratio

Probe attenuation ratio
Menu attenuation ratio

0.001:1

1mx

0.1:1

100mx

10:1

10x

1000:1

1kx

0.002:1

2mx

0.2:1

200mx

20:1

20x

2000:1

2kx

0.005:1

5mx

0.5:1

500mx

50:1

50x

5000:1

5kx

0.01:1

10mx

1:1

1x

100:1

100x

10000:1

10kx

0.02:1

20mx

2:1

2x

200:1

200x

0.05:1

50mx

5:1

5x

500:1

500x

Table 4-2 Probe Attenuation Ratio Correspondence Table

Chapter 4 Vertical System

79

4.4.6 Vertical Expansion Reference

When using vertical expansion, click the center or zero point.

Center: Click the center, adjust the vertical scale, and the oscilloscope waveform is expanded with the screen center
as reference

Zero point: Click the zero point, adjust the vertical scale, and the oscilloscope waveform is expanded with the
waveform zero point as reference

4.4.7 Labels

Labels can be added to each analog channel as needed, and the added label is displayed behind the channel
indicator.

Channel labels can be selected: none, custom, preset (including ACK, ADDR, CAN_H, CAN_L, CLK, CS, DATA,
H_L, IN, L_H, MISO, MOSI, RX, SCL, SDA, SS, TX, OUT) .

80

Figure 4-16 Label

Note: Customization supports up to 16 characters.

Chapter 4 Vertical System

81

4.4.8 Channel Input impendance

Choose the appropriate impedance according to the actual test matching cable or probe, you can choose "1MΩ" or
"50Ω", the default input impedance is 1MΩ.

1MΩ-also known as high resistance, matching most passive probes, can minimize the load effect of the oscilloscope

on the device under test.

50Ω-In high frequency measurement, 50 Ω cables or active probes are commonly used, and 50 Ω impedance
matching is required.

Choosing a proper impedance matching can minimize reflections along the signal path and make the measurement
more accurate. Please refer to Figure 4-17 for input impedance setting.

82

Figure 4-17 Channel Input impendance

Note: When switching channel input impedance, you need to pay attention to the input voltage not to exceed the
allowable voltage;

In order to obtain protection for the channel input, the oscilloscope input impedance is 1MΩ by default in the
shutdown state.

Chapter 5 Trigger System

83

Chapter 5 Trigger System

This chapter contains the detailed information of the trigger system of the oscilloscope. You are recommended to

read this chapter carefully to understand the set functions and operation of the trigger system of the Smart series
oscilloscope.

⚫ Trigger and trigger adjustment

⚫ Slope trigger

⚫ Edge trigger

⚫ Time out trigger

⚫ Pulse width trigger

⚫ Video trigger

⚫ Logic trigger

⚫ Serial bus trigger

⚫ Nth edge trigger

⚫ Runt trigger