Troniq DSO 25, DSO 100 Digital Storage Oscilloscope User Manual

User Manual

Digital Storage Oscilloscope

D S O 2 5 / D S O 1 0 0

Version No.: V 1.6

I

Declaration

Copyright © Eleshop. All rights reserved.

Contents in this Manual are not allowed to copy, extract and translate before being allowed by Eleshop.

I I

Digital Storage Oscilloscope Brief Introduction

Model:

DSO25 500MSa/s real-time sampling rate, 25 MHz analog frequency

DSO100 500MSa/s real-time sampling rate, 100 MHz analog frequency

Characteristic:

● The volume of the oscilloscope is cabinet and it is portable

● Color TFT LCD display

● 2 channels Bandwidth:25MHz / 100MHz

● Single real-time sampling rate are 500MSa/s. Equivalent sampling rate is 50GSa/s.

●Memory depth are 4Kpts (500MSa/s real-time sampling rate)

● Edge, Pulse, Video，Slope，and Alternative trigger function.

● Unique Digital Filter function and Waveform recorder function

● Pass/Fail function.

● Auto measure thirty two parameters support all measurement function.

● Two groups’ reference waveforms and twenty groups’ capture waveforms and twenty groups’ setups internal save/recall function and USB flash drive save/recall function.

● Cursor measure covers Manual mode, Track mode and Auto mode.

● Channel waveform and its FFT waveform display on split screen.

●Waveform Intensity and Grid Brightness can be adjusted.

● Menu display in the form of pop-up that in order to convenience users to use it.

●Rich Screen display styles: Classical, Modern, Tradition, Succinct.

● Multiple Language User Interface.

● Support Multilingual help system online

●Standard setup interface: USB Host: Support USB flash drive storage/recall

I I I

function and update firmware; USB Device: Support PictBridge compatible printer and support PC remote control; RS-232;Pass/Fail output

Digital Storage Oscilloscope Accessories:

● 1:1/10:1 probe (2 PCS)

● Power Cable that fits the standard of destination country

● Certification.

● guaranty card

● CD(including EasyScope3.0 computer software system)

● User Manual

● USB cable

IV

General safety summary

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To avoid potential hazards, use this product only as specified.

Only qualified personnel should perform service procedures.

1. To Avoid Fire or Personal Injury

●

Use Proper Power Cord. Use only the power cord specified for this product and certified for the country of use.

●

Connect and Disconnect Properly. Do not connect or disconnect probes or test leads while they are connected to a voltage source.

●

Ground the Product. This product is grounded through the grounding conductor of the power cord. To avoid electric shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output terminals of the product, ensure that the product is properly grounded.

● Connect the Probe Properly. The probe ground lead is at ground potential. Do not connect the ground lead to an elevated voltage.

●

Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings and marking on the product. Consult the product manual for further ratings information before making connections to the product.

●

Do Not Operate Without Covers. Do not operate this product with covers or panels removed.

●

Use Proper Fuse. Use only the fuse type and rating specified for this product.

V

● Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present.

● Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified service personnel.

●

Do Not Operate in Wet/Damp Conditions.

●

Do Not Operate in an Explosive Atmosphere.

●

Keep Product Surfaces Clean and Dry.

Power Line Conducted Emission Limits(Class B)

Measuring standard:EN61326:1998+A1,2002+A2,2003

Safety Terms and Symbols

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 property including the product.

Symbols on the Product. These symbols may appear on the product:

Warning Protective Ground Caution Earth Terminal

high voltage (Earth) Terminal Refer to Manual

VI

preface

Preface

This manual contains operating information for the Digital Storage

Oscilloscopes. The manual consists of the following chapters:

◆

“Accidence” chapter describes the front panel; display area of the oscilloscope;

Functional Check and Probe Compensation briefly.

◆

“Functions Instruction and Operation” chapter describes function and operation of the Oscilloscope systemically.

◆

“Application Examples” chapter includes examples of a wide variety of measurements to give you ideas on how to solve your measure problems.

◆

“Prompting messages and Troubleshooting” chapter describes prompting messages and describes some ways of troubleshooting.

◆ “Service and Support” chapter introduce warranty and technology of the products.

◆

“Appendix A: Specifications” chapter introduce specifications of the oscilloscopes

◆

“Appendix B: Oscilloscope Accessories” chapter briefly describes standard accessories.

◆

“Appendix C: Default Setup” chapter contains a list of the menus and controls with the default (factory) settings that are recalled when you push the DEFAULT

SETUP front-panel button.

◆ “Appendix D: Daily Maintain and Cleaning” chapter describes how to take care of the oscilloscope.

VII

Catalogue

Storage Digital Oscilloscope introduction....................................................................... II

General Safety Requirement................................... ............................ ….....................IV

Preface............................................................................................................................VI

User Manual .....................................................................................................................I

Digital Storage Oscilloscope Brief Introduction........................................................ III

Chapter 1 Accidence ....................................................................................................... 3

1.1 Accidence of the front panel and user interface..................................................4

1.2 Function checking...............................................................................................7

1.3 Probe...................................................................................................................9

1.3.1 Probe Safety.....................................................................................................9

1.3.2 Probe Attenuation Setting................................................................................9

1.3.3 Probe Compensation ......................................................................................10

Chapter 2 Functions Instruction and Operation........................................................ 12

2.1 Menu and control button...................................................................................12

2.2 Connector..........................................................................................................14

2.3 Auto setup .........................................................................................................15

2.4 Default setup.....................................................................................................17

2.5 Universal knob..................................................................................................18

2.6 Vertical System .................................................................................................19

2.6.1 CH1 & CH2 Channel.....................................................................................19

2.6.2 The Using of the Vertical “Position” knob and “Volt/div” knob in the vertical system .....................................................................................................................26

2.6.3 Math Functions ..............................................................................................27

2.6.4 Using Ref .......................................................................................................34

2.7 Horizontal System ............................................................................................36

2.7.1 Horizontal control knob .................................................................................37

2.7.2 Window Zone.................................................................................................37

2.8 Trigger System..................................................................................................40

2.8.1 Signal Source .................................................................................................41

2.8.2 Trigger Type...................................................................................................41

2.8.3 Coupling ........................................................................................................53

2.8.4 Position ..........................................................................................................53

2.8.5 Slope & Level ................................................................................................53

2.9 Acquiring Signals system .................................................................................55

2.10 Display System ...............................................................................................60

2.10.1 X-Y Format..................................................................................................63

2.11 Measure System..............................................................................................65

2.11.1 Scale Measurement ......................................................................................65

2.11.2 Cursor Measurement....................................................................................65

2.11.3 Auto Measurement .......................................................................................70

2.12 Storage System ...............................................................................................76

2.13 Utility System .................................................................................................87

2.13.1 System status ...............................................................................................90

2.13.2 Language......................................................................................................91

2.13.3 Print .............................................................................................................91

2.13.4 Self Calibration............................................................................................94

2.13.5 Self Test .......................................................................................................95

1

2.13.6 Update Firmware .........................................................................................97

2.13.7 Pass/Fail.......................................................................................................97

2.13.8 Waveform Record ......................................................................................101

2.13.9 Recorder.....................................................................................................104

2.14 Online Help Function .................................................................................107

Chapter3 Application Examples................................................................................ 108

3.1Taking Simple Measurements .........................................................................109

3.2 Taking Cursor Measurements......................................................................... 111

3.2.1 Measuring Ring Frequency.......................................................................... 111

3.2.2 Measuring Ring Amplitude ......................................................................... 112

3.3 Catch the single signal .................................................................................... 113

3.4 Analyze the signal detail ................................................................................. 114

3.4.1 Looking at a Noisy Signal ........................................................................... 114

3.4.2 Separating the Signal from Noise ................................................................ 114

3.5 Triggering on a Video Signal.......................................................................... 115

3.5.1Triggering on Video Field ............................................................................ 115

3.5.2 Triggering on Video Lines........................................................................... 115

3.6. Application of X-Y function .......................................................................... 116

3.7 Analyzing a Differential Communication Signal............................................ 118

Chapter 4 prompting messages and troubleshooting............................................... 119

4.1 Prompting messages: ...................................................................................... 119

4.2 Troubleshooting ..............................................................................................121

Chapter 5 Service and Support.................................................................................. 123

5.1 Maintain summary ..........................................................................................123

Appendix A: Specifications ........................................................................................ 124

Appendix B: Default setup ......................................................................................... 129

Appendix C: Daily Maintain and Cleaning .............................................................. 131

Daily Maintain ....................................................................................................131

Cleaning...............................................................................................................131

Index............................................................................................................................. 132

2

Chapter 1 Accidence

Digital Storage Oscilloscope is mini-type and portable bench type instruments, which could be used for measuring as the GND voltage.

This Chapter shows you how to operate following tasks:

◆ Accidence of the front panel and user interface

◆ Simple checking of functions

◆ Probe compensation

◆ Matching probes attenuation coefficient

3

1.1 Accidence of the front panel and user interface

It is important for you to understand the DSO’s front panel before operating it.

The following contents are the brief introduction for the front panel function, which is useful to be familiar with the operation of the Digital Storage Oscilloscope in short time.

1.1.1 Front Panel

The oscilloscopes provides an easy-to-use front panel to convenience users to operate them, the panel contains knobs and buttons. There is a list of five ashen buttons as menu operational buttons on the right of display screen. You can set different options of the current menu in virtue of them. Other buttons are function buttons; you can enter different function menus or obtain given function application in virtue of them.

Menu

Button

Universal

Knob

Common Function

Button

Option Button

USB Host

Interface

Print button

Signal input channel

EXT Trigger input channel

Picture 1-1 Front Panel Controls(2 Channel model)

4

Run Control

AUTO Button

Trigger Control

Horizontal Control

Vertical Control

Probe component

Picture 1-2 Display area(5.7’ LCD model)

1. Trigger status

Armed:The oscilloscope is acquiring pre-trigger data. All triggers are ignored in this state.

Ready: All pre-trigger data has been acquired and the oscilloscope is ready to accept a trigger.

Trig’d: The oscilloscope has seen a trigger and is acquiring the posttrigger data.

Stop: The oscilloscope has stopped acquiring waveform data.

Auto: The oscilloscope is in auto mode and is acquiring waveforms in the absence of triggers.

Scan: The oscilloscope is acquiring and displaying waveform data continuously in scan mode.

2. display the position of the present waveform window

3. Marker shows horizontal trigger position. Turn the HORIZONTAL POSITION knob to adjust the position of the marker.

4 “Print Key” option is set to “Print Picture”.

5

“Print Key” option is set to “Save Picture”.

5. “Back USB” option is set to “Computer”.

“Back USB” option is set to “Printer”.

6. Show the waveform’s channel position.

7. Signal Coupling symbol.

8. Readout shows the vertical factor of the channels.

9. “B” icon shows that bandwidth function is open.

10. Readout shows the main time base setting.

11. Icon shows the trigger type for the triggering

12. Readout shows the horizontal position.

13. Readout shows the trigger voltage.

14. Readout shows present signal frequency.

1.1.2 Back and Side Connections

Oscilloscope

1、 Pass/Fail Output

2、 RS-232 Connector

3、 Back USB Connector

4、 Power Input Connector

Picture 1- 3(2 Channel model)

6

1.2 Function checking

When you check whether or not the oscilloscope could work smoothly, please operate as following:

1. Power On the oscilloscope.

Press “DEFAULT SETUP” to show the result of the self check. The probe default attenuation is 1X.

2. Set the switch to 1X on the probe and connect the probe to channel 1 on the oscilloscope. To do this, align the slot in the probe connector with the key on the CH

1 BNC, push to connect, and twist to the right to lock the probe in place. Connect the probe tip and reference lead to the PROBE COMP connectors

Picture 1-4

3．Press “AUTO” to show the 1 KHz frequency and about 3V peak-peak square wave in couple seconds

7

Picture 1-5

4. Press “CH1” two times to cancel the channel 1, Press“CH2” to change screen into channel 2, reset the channel 2 as step 2 and 3.

8

1.3

Probe

1.3.1 Probe Safety

A guard around the probe body provides a finger barrier for protection from electric shock.

Picture 1-6

Connect the probe to the oscilloscope and connect the ground terminal to ground before you take any measurements.

Note： ● To avoid electric shock when using the probe, keep fingers behind the guard on the probe body.

● To avoid electric shock while using the probe, do not touch metallic portions of the probe head while it is connected to a voltage source.

Connect the probe to the oscilloscope and connect the ground terminal to ground before you take any measurements.

1.3.2 Probe Attenuation Setting

Probes are available with various attenuation factors which affect the vertical scale of the signal. The Probe Check function verifies that the Probe attenuation option matches the attenuation of the probe.

You can push a vertical menu button (such as the CH 1 MENU button), and select the Probe option that matches the attenuation factor of your probe.

9

Note. The default setting for the Probe option is 1X.

Be sure that the attenuation switch on the probe matches the Probe option in the oscilloscope. Switch settings are 1X and 10X.

Note. When the attenuation switch is set to 1X, the probe limits the bandwidth of the oscilloscope to 10MHz. To use the full bandwidth of the oscilloscope, be sure to set the switch to 10X

1.3.3 Probe Compensation

As an alternative method to Probe Check, you can manually perform this adjustment to match your probe to the input channel.

Picture1-7

1

.

Set the Probe option attenuation in the channel menu to 10X. Set the switch to 10X on the probe and connect the probe to channel 1 on the oscilloscope. If you use the probe hook-tip, ensure a proper connection by firmly inserting the tip onto the probe.

2.

Attach the probe tip to the PROBE COMP～3V connector and the reference lead to the PROBE COMP Ground connector. Display the channel and then push the

“AUTO” button.

10

3

. Check the shape of the displayed waveform.

under compensated Compensated correctly over compensated

Picture 1-8

4. If necessary, adjust your probe. Repeat as necessary.

11

Chapter 2 Functions Instruction and Operation

To use your oscilloscope effectively, you need to learn about the following oscilloscope functions:

◆

Menu and control button

◆

Connector

◆

Auto Setup

◆

Default Setup

◆

Universal knob

◆

Vertical System

◆

Horizontal System

◆

Trigger System

◆

Acquiring signals System

◆

Display System

◆

Measuring waveforms System

◆

Storage System

◆

Utility System

◆

Online Help function

2.1 Menu and control button

Showing as the following picture:

12

Picture 2-1

All models:

■

CH1、CH2: Channel 1, channel 2 menu control button.

■

MATH: MATH function control button.

■

REF: Reference waveforms control button.

■

HORI MENU: Horizontal control button.

■

TRIG MENU: Trigger control button.

■

SET TO 50%: Set the trigger level to midpoint of the signal amplitude.

■

FORCE

:

Use the FORCE button to complete the current waveform acquisition whether the oscilloscope detects a trigger or not. This is useful for Single acquisitions and Normal trigger mode.

■

SAVE/RECALL: Display the Save/Recall Menu for setups and waveforms.

■

ACQUIRE: Display the Acquire Menu.

■

MEASURE: Display the automated measurements menu.

■

CURSORS: Display the Cursor Menu. Vertical Position controls adjust cursor position while displaying the Cursor Menu and the cursors are activated.

Cursors remain displayed (unless the “Type” option is set to “Off”) after leaving the Cursor Menu but are not adjustable.

■

DISPLAY: Display the Display Menu.

■

UTILITY: Display the Utility Menu.

■

DEFAULT SETUP: Recall the factory setup.

■

HELP: Enter the online help system.

■

AUTO: Automatically sets the oscilloscope controls to produce a usable display of the input signals.

■

RUN/STOP: Continuously acquires waveforms or stops the acquisition.

Note：If waveform acquisition is stopped (using the RUN/STOP or SINGLE

13

button), the SEC/DIV control expands or compresses the waveform.

■

SINGLE: Acquire a single waveform and then stops.

2.2 Connector

Picture 2-2

■

CH1、CH2: Input connectors for waveform display.

■

EXT TRIG: Input connector for an external trigger source. Use the Trigger Menu to select the “Ext” or “Ext/5” trigger source.

■

Probe Component: Voltage probe compensation output and ground. Use to electrically match the probe to the oscilloscope input circuit.

Note：If you connect a voltage source to a ground terminal, you may damage the oscilloscope or the circuit under test. To avoid this, do not connect a voltage source to any ground terminals.

14

2.3 Auto setup

The Digital Storage Oscilloscopes have auto setup function, which can identify the type of waveform and adjust controls to produce a usable display of the input signal.

“AUTO” is the auto Set up button.

Table 2-1 Auto set function Menu:

Option Introduction

（

Multi-cycle sine）

（ Single-cycle sine）

Auto set the screen and display several cyc signal.

Set the screen and auto display single cyc signal.

Auto set and show the rising time.

（ Rising edge）

（

Falling edge）

（

Undo Setup）

Auto set and show the falling time.

Causes the oscilloscope to recall the previous setup.

Auto set determines the trigger source based on the following conditions:

●

If multiple channels have signals, channel with the lowest frequency signal.

●

No signals found, the lowest-numbered channel displayed when Auto set was invoked

●

No signals found and no channels displayed, oscilloscope displays and uses channel 1.

Input a signal to Channel 1, press the “Auto” button (See picture 2-3):

15

Picture 2-3

Table 2-2 Auto set the function item

Function Setting

Acquire Mode

Display Format

Display Type

Adjusted to Sampling

Y-T

Set to Dots for a video signal, set to Vectors for an FFT spectrum; otherwise, unchanged

Vertical Coupling

Bandwidth Limit

Adjusted to DC or AC according to the input signal

Off(full)

V/div Adjusted

VOLTS/DIV adjustability

Coarse

Signal inverted Off

Horizontal position Center

S/div Adjusted

Trigger type Edge

Trigger source Auto detect the channel which has the input signal

Trigger slope

Trigger mode

Trigger coupling

Trigger holdoff

Trigger level

Rising

Auto

DC

Minimum

Set to 50%

16

2.4 Default setup

The oscilloscope is set up for normal operation when it is shipped from the factory. This is the default setup. To recall this setup, press the DEFAULT SETUP button. The options, buttons and controls that change settings when you press the

DEFAULT SETUP button, refer to appendix C.

The DEFAULT SETUP button does not reset the following settings:

●

Language option

●

Saved reference waveform files

●

Saved setup files

●

Display contrast

●

Calibration data

17

2.5 Universal knob

Universal knob

Picture 2-4

The Digital Storage Oscilloscope has a special knob-the “Universal” knob,

Using this knob can adjust the holdoff time, move cursors, set the pulse width,

Set the Video Linage, adjust frequency upper limit or frequency lower limit of the digital filter, adjust x mask and y mask in pass/fail function and adjust the record frame or play back frame in waveform record menu etc. You can turn the

“Universal” knob to adjust the storage position of setups, waveforms, pictures to save or recall them, and you can adjust the “Universal” knob to select menu option.

18

2.6 Vertical System

Showing as follow picture, the buttons and knobs are useful in the vertical system

Volt/div knob

Vertical POSITION knob

Picture 2-5

The vertical control, which each channel has, could be used for displaying waveform, rectify scale and position.

2.6.1 CH1 & CH2 Channel

Table 2-3 CH1 & CH2 function menu 1:

Coupling DC

BW limit

AC

GND

On

Off

Table 2-4 CH1 & CH2 function menu 2:

19

DC passes both AC and DC components of the input signal.

AC blocks the DC component of the input signal and attenuates signals below 10 Hz.

GND disconnects the input signal.

Limits the bandwidth to reduce display noise; filters the signal to reduce noise and other unwanted high frequency components.

Selects the resolution of the Volts/Div knob Volts/Div

Coarse

Fine

Coarse defines a 1-2-5 sequence.

Fine changes the resolution to small steps between the coarse settings.

Probe 1X Set to match the type of probe you are using to

10X

100X

1000X ensure correct vertical readouts.

Next Page Page 1/2 Press this button to enter second page menu.

Invert on off

Input

1MΩ

Digital Filter

Next Page Page 2/2

Turn on invert function.

Turn off invert function.

Setup 1MΩ as input impedance

Press this button to enter the “Digital Filter menu”.(See table 2-5)

Press this button to return the first page menu.

Table 2-5 Digital Filter function menu:

Digital Filter On

Off

Type

Upper_limit

Lower_limit

Return

Turn on the digital filter.

Turn off the digital filter.

Setup as LPF(Low Pass Filter).

Setup as HPF(High Pass Filter).

Setup as BPF(Band Pass Filter).

Setup as BRF(Band Reject Filter).

Turn the “Universal” knob to set upper limit.

Turn the “Universal” knob to set lower limit.

Return the digital filter main menu.

■

“GND” Coupling: Use GND coupling to display a zero-volt waveform. Internally, the channel input is connected to a zero-volt reference level.

■

Fine Resolution：The vertical scale readout displays the actual Volts/Div setting while in the fine resolution setting. Changing the setting to coarse does not change the vertical scale until the VOLTS/DIV control is adjusted.

■

Wave Cancel：Press the menu button for the channel to display its vertical menu.

Push the menu button again to remove the waveform.

Note：● The oscilloscope vertical response rolls off slowly above its bandwidth , which depending on the model, or 20 MHz when the Bandwidth Limit option is set to “On”. Therefore, the FFT spectrum can show valid frequency information higher than the oscilloscope bandwidth. However, the magnitude information near or above the bandwidth will not be accurate.

● If the channel is set to DC coupling，you can quickly measure the DC component of the signal by simply nothing its distance from the ground symbol. blocked allowing you to use greater sensitivity to display the AC component of the signal.

Setting up the CH1、CH2 Channels

Each channel has its own separate Menu. The items are set up separately according to each channel.

1. Set up the channel couple

Take the CH1 for example; the tested signal is a sine wave signal with DC deflection:

●

Press“CH1”→“Coupling”→“AC”, Set to AC couple mode. It blocks the DC component of the input signal.

Set to AC coupling

●

Press“CH1”→“Coupling”→“DC”, Set to DC couple mode. Both

DC and AC component could be obstructed.

Set to DC coupling

DC Status

Picture 2-7

21

●

Press“CH1”→“Coupling”→“GND”, Set to GROUND mode. It disconnects the input signal.

Set to GND coupling

GND Status

Picture 2-8

2. Set up the channel bandwidth limit

Take the CH1 for example; the tested signal is a pulse signal with the high frequency surge:

●

Press “CH1”→“BW Limit”→ “On”，Set the band width Limited to open state. The high frequency component which is higher than 20MHz obstructed.

Set bandwidth to

20MHZ

Symbol

●

Press“CH1”→“BW Limit”→ “Off”, Set bandwidth Limited to close state, the High

Frequency component in the tested signal could pass.

22

Set off bandwidth

Picture 2-10

3. Volts/Div settings

Vertical scale adjust have Coarse and fine two modes, Vertical sensitivity range is 2mV/div～5V/div scale or 2mV/div～10V/div scale

Take the CH1 for example:

●

Press“CH1”→“Volts/Div”→“Coarse”. It is the default setting of Volts/Div, and it makes the vertical scaling in a 1-2-5-step sequence from 2mv/div, 5mv/div,

10mv/div to 10v/div.

Set to Coarse

Picture 2-11

●

Press CH1”→ Volts/Div”→ Fine”. This setting changes the vertical to small steps between the coarse settings. It will be helpful when you need to adjust the waveform vertical size in smooth steps.

23

Set to Fine

Picture 2-12

4. Probe attenuation set

In order to assort the attenuation coefficient, you need to response in the channel operation Menu. If the attenuation coefficient is 10:1, the input coefficient should be set to 10X, so that the mistake of the Volts/div information and measure testing should be forbidden.

Take the CH1 for example, when you use the 100:1 probe:

●

Press“CH1”→“Probe” →“100X

.

Status changes with the probe attenuation

Picture 2-13

5. To invert a waveform

Take the CH1 for example:

●

Press“CH1”→“Invert”→“On”:

24

Probe attenuation factor

Picture 2-14

●

Press“CH1”→“Invert”→“Off”:

Picture 2-15

6. Digital Filter

Press “CH1”→“Next Page”→ “Filter”, display the digital filter menu. Select

“Filter Type”, then select “Upper Limit” or “Lower Limit” and turn the “Universal” knob to adjust them.

●

Press “CH1”→“Next Page”→ “Filter” →“Off”. Turn off the Digital Filter function.

25

Picture 2-16

●

Press “CH1”→ “Next Page”→ “Filter” → “On”. Turn on the Digital Filter function.

Picture 2-17

2.6.2 The Using of the Vertical “Position” knob and “Volt/div” knob in the vertical system

■

Vertical “POSITION” knob

1. Use the Vertical “POSITION” knobs to move the channel waveforms up or down on the screen. This button’s resolution is variety as per the vertical scale.

2. When you adjust the vertical position of channels waveforms, the vertical position information will display on the left bottom of screen. For example “Volts Pos=24.6mV”.

3. Press the vertical “POSITION” knob to set the vertical position to zero.

26

■

“Volts/div” knob

1. Use the “Volts/div” knobs to control how the oscilloscope amplifies or attenuates the source signal of channel waveforms. When you turn the “volts/div” knob, the oscilloscope increases or decreases the vertical size of the waveform on the screen with respect to the ground level;

2. When you press the “Volt/div” Knob, you can switch “Volt/div” option between “Coarse” and “Fine”. The vertical scale is made sure by the 1-2-5 step in the

Coarse. Increase in the clockwise, reduce in the anticlockwise. In the fine mode, the knob changes the Volts/Div scale in small steps between the coarse settings. Increase in the clockwise, reduce in the anticlockwise.

2.6.3 Math Functions

Math shows the results after +,-,*and FFT operation of the CH1 and CH2.

Press the MATH button to display the waveform math operations. Press the MATH button again to remove the math waveform display.

Table 2-6 MATH function menu:

Function Setting Introduction

Operation

+、-、*、FFT

Source 1 plus Source 2.

CH1 Invert

CH2 Invert on off on off

Invert the CH1 waveform.

Turn off CH1 Invert function.

Invert the CH2 waveform.

Turn off CH2 Invert function.

By rotating the universal knob to adjust the vertical position of waveform after operation

By rotating the universal knob to adjust the vertical range of waveform after operation

Table 2-7 MATH function instruction

Operation Setting Introduction

＋

－

CH1+CH2

CH1-CH2

CH1 waveform adds CH2 waveform.

The channel 2 waveform is subtracted from the channel 1 waveform.

27

*

FFT

CH2-CH1 The channel 1 waveform is subtracted from the channel 2 waveform.

CH1*CH2 Source 1 multiply source 2.

Fast Fourier Transform.

CH1 waveform add CH2waveform, see picture 2-18:

MATH Waveform

Picture 2-18

1. FFT Spectrum Analyzer

The FFT process mathematically converts a time-domain signal into its frequency components. You can use the Math FFT mode to view the following types of signals:

●

Analyze the Humorous wave in the Power cable.

●

Test the Humorous content and distortion in the system

●

Show the Noise in the DC Power supply

●

Test the filter and pulse response in the system

●

Analyze vibration

Table 2-8 FFT function menu 1:

FFT Option Setting Introduction

Source CH1 Select this channel as the FFT source.

CH2

Hamming

Rectangular

Blackman

28

FFT ZOOM

Next Page

1X

2X

5X

10X

Page 1/2

Changes the horizontal magnification of the

FFT display.

Enter the second page of FFT menu.

Table 2-9 FFT function menu 2:

FFT Option Setting

Scale Vrms

Display

Next Page dBVrms

Split

Full screen

Page 2/2

Introduction

Set Vrms to be the Vertical Scale unit.

Set dBVrms to be the vertical Scale unit.

Display FFT waveform on half screen.

Display FFT waveform on full screen.

Return the first page of FFT menu.

To use the Math FFT mode, you need to perform the following tasks:

1. Set up the source (time-domain) waveform.

●

Press the AUTO button to display a YT waveform.

●

Turn the vertical “POSITION” knob to move the YT waveform to the center vertically (zero divisions).

●

Turn the horizontal “POSITION” knob to position the part of the YT waveform that you want to analyze in the center eight divisions of the screen.

The oscilloscope calculates the FFT spectrum using the center 1024 points of the time-domain waveform.

●

Turn the “Volts/div” knob to ensure that the entire waveform remains on the screen.

●

Turn the “S/div” knob to provide the resolution you want in the FFT spectrum.

●

If possible, set the oscilloscope to display many signal cycles.

To display FFT correctly, follow these steps:

1. Push the “MATH” button.

2. Set the “Operation” option to FFT.

3. Press the “Source” button to select “CH1”or “CH2”according to input signal channel.

29

4. According to Nyquist law, turn the “S/div” knob to adjust the sampling rate(This parameter is displayed behind the time base parameter) is at least double than input signal frequency.

2. Displaying the FFT Spectrum

Press the MATH button to display the Math Menu. Use the options to select the

Source channel, Window algorithm, and FFT Zoom factor. You can display only one

FFT spectrum at a time. You can select “Full screen” or “Split” in “Display” option to display FFT waveform on full screen or display channel waveform and its FFT waveform on half screen at a time.

Picture 2-19

Set dBVrms to be the vertical

Scale unit

Time base

Picture 2-20

Sampling rate

30

FFT window

3. Select FFT window

Windows reduce spectral leakage in the FFT spectrum. The FFT assumes that the YT waveform repeats forever. With an integral number of cycles, the YT waveform starts and ends at the me amplitude and there are no discontinuities in the signal shape A non-integral number of cycles in the YT waveform causes the signal start and end points to be at different amplitudes. The transitions between the start and end points cause discontinuities in the signal that introduce high-frequency transients.

According to the tested options and source speciality, make sure the window you need to use.

Table 2-10 FFT window instruction

Window Speciality

Rectangular Best frequency resolution, worst magnitude resolution.

This is essentially the same as no window.

Hanning

Hamming

Blackman

Better frequency, poorer magnitude accuracy than

Rectangular. Hamming has slightly better frequency resolution than Hanning.

Best magnitude, worst frequency resolution.

Satisfied Test content

Symmetric transients or bursts.

Equal-amplitude sine waves with fixed frequencies. Broadband random noise with a relatively slowly varying spectrum.

Sine, periodic, and narrow-band random noise. Asymmetic transients or bursts.

Single frequency waveforms, to find higher order harmonics.

4. Magnifying and Positioning an FFT Spectrum

You can magnify and use cursors to take measurements on the FFT spectrum.

The oscilloscope includes an “FFT Zoom” option to magnify horizontally, press this option button to select “1X”, “2X”, “5X” or “10X”. Moreover, you also can turn the

“Universal” knob to magnify FFT waveform horizontally in a 1-2-5 step. To magnify

31

vertically; you can turn the “Volts/div” knob.

5. Measuring an FFT Spectrum Using Cursors

You can take two measurements on FFT spectrums: magnitude (in dB) and frequency (in Hz). Magnitude is referenced to 0 dB, where 0 dB equals 1 VRMS.

You can use the cursors to take measurements at any zoom factor. (Refer to cursor measure2.11.2)

Use horizontal cursors to measure amplitude and vertical cursors to measure frequency.

If you input a sine signal to channel 1, follow these steps:

1. Measure FFT Amplitude

1) Input a sine signal to channel 1, and press the “AUTO” button.

2) Press the “MATH” button to enter the “MATH” menu.

3) Press the “Operation” option button to select “FFT”.

4) Press the “Source” option button to select “CH1”.

5) Press CH1 button to display CH1 menu.

6) Turn the “S/div” knob to adjust sampling rate (at least double bigger than frequency of input signal).

7) If FFT display on full screen, press CH1 button again to remove channel waveform display.

8) Press the “CURSOR” button to enter “Cursor” menu.

9) Press the “Cursor Mode” button to select “Manual”.

10) Press the “Type” option button to select “Voltage”.

11) Press the “Source” option button to select “MATH”.

12) Press the “CurA” option button; turn the “Universal” knob to move Cursor A to the highest point of the FFT waveform.

13) Press the “CurB”option button, turn the “Universal” knob to move Cursor B to the lowest point of the FFT waveform.

14) The amplitude ( T) displays on the top of the left screen.

32

Picture 2-21

2. Measure FFT Frequency

1) Press the CURSOR button.

2) Press the “Cursor Mode” button to select “Manual”.

3) Press the “Type” option button to select “Time”.

4) Press the “Source” option button to select “MATH”.

5) Press the “Cur1” option button, turn the “Universal” button to move Cursor 1 to the highest position of the FFT waveform.

6) The value of Cur1 displaying on the top of the left screen is FFT highest

Frequency. This frequency should be the same as input signal frequency.

Picture 2-22

33

NOTE：

● The FFT of a waveform that has a DC component or offset can cause incorrect FFT waveform magnitude values. To minimize the DC component, choose AC Coupling on the source waveform.

● To display FFT waveforms with a large dynamic range, use the dBVrms scale. The dBVrms scale displays component magnitudes using a log scale.

● The Nyquist frequency is the highest frequency that any real-time digitizing oscilloscope can acquire without aliasing. This frequency is half that of the sample rate provided it is within the analog bandwidth of the oscilloscope. Frequencies above the

Nyquist frequency will be under sampled, which causes aliasing.

2.6.4 Using Ref

The reference control saves waveforms to a nonvolatile waveform memory. The reference function becomes available after a waveform has been saved.

Table 2-11 REF function menu：

Option Setting Introduction

REFA

REFB

Save

CH2

CH1 off

CH2 off

REFA/REFB on off

Choose the reference location to store or recall a waveform.

Stores source waveform to the chosen reference location.

Recall the reference waveform on the screen.

Turn off the reference waveform.

Press the Ref button to display the “Reference waveform menu”.

34

Operation step：

Picture 2-23

1. Press the “REF” menu button to display the “Reference waveform menu”.

2. Press the “Source” option button to select input signal channel.

3. Turn the vertical “POSITION

” knob and “Volt/div” knob to adjust the vertical position and scale to conformable positions.

4. Press the third option button to select “REFA” or “REFB” as storage position.

5. Press the “Save” option button.

6. Press the bottom option button to select “REFA On” or “REFB On” to recall the reference waveform.

Picture 2-24

Note：● X-Y mode waveforms are not stored as reference waveforms.

● You cannot adjust the horizontal position and scale of the reference waveform.

35

2.7 Horizontal System

As follow Picture, there are one button and two knobs in the HORIZONTAL area.

S/div knob

Horizontal

“POSITION” knob

Picture 2- 25

Table 2- 12 4Kpts memory depth Series Horizontal system function menu：


Main

Window

Display the waveform.

Win Two Cursors define one window; use horizontal

“POSITION” and “S/div” to adjust the window.

Change the display so that the waveform could be displayed in the window（expanded to screen width).

Table 2- 13 32K/40K/2Mpts memory depth Series Horizontal system function menu:

Delayed On

Off

MemDepth Normal

Long Mem

Turn on this function that main timebase waveform display on the top half screen and window timebase wavefrom display on the below half screen at the same time.

Turn off this function that only display main timebase waveform on the screen.

Set memory depth to normal.

Set memory depth to long Memory depth in order to get more waveform dots.

Note：● Only some series model DSO support Long Memory

●

If Set memory depth to normal mode, the memory depth is 40Kpts

●

If Set memory depth to LongMem mode, the memory depth is 2Mpts

36

2.7.1 Horizontal control knob

You can use the horizontal controls to change the horizontal scale and position of waveforms. The horizontal position readout shows the time represented by the center of the screen, using the time of the trigger as zero. Changing the horizontal scale causes the waveform to expand or contract around the screen center.

■

Horizontal “POSITION” knob

1. Adjust the horizontal position of all channels and math waveforms (the position of the trigger relative to the center of the screen). The resolution of this control varies with the time base setting.

2. When you press the horizontal “POSITION” Knob, you can set the horizontal position to zero.

■

“S/div” knob

1. Using to change the horizontal time scale to magnify or compress the waveform. If waveform acquisition is stopped (using the RUN/STOP or SINGLE button), turn the

S/div knob to expand or compress the waveform.

2. Select the horizontal time/div (scale factor) for the main or the window time base.

When Window Zone is enabled, it changes the width of the window zone by changing the window time base.

■

Display scan mode：

When the SEC/DIV control is set to100 ms/div or slower and the trigger mode is set to Auto, the oscilloscope enters the scan acquisition mode. In this mode, the waveform display updates from left to right. There is no trigger or horizontal position control of waveforms during scan mode.

2.7.2 Window Zone

Use the Window Zone option to define a segment of a waveform to see more detail. The Window time base setting cannot be set slower than the Main time base setting.

37

You can turn the Horizontal Position and SEC/DIV controls to enlarge or minish waveforms in the Window Zone.

If you want to see a section of the waveform in detail, follow these steps:

4K/18K/24Kpts memory depth Series Operate steps:

1. Press the “HORI MENU” button to enter the “Horizontal menu”.

2. Press the “Win Zone” option button.

3.

Turn the “S/div” knob (adjust window’s size) and turn the “Horizontal

Position” knob (adjust window’s position) to select the window that your need

(see picture 2-27). The Window time base setting cannot be set slower than the Main time base setting.

Picture 2-27

4. Press the “Window” button. Now the window waveform has been expanded to cover the whole screen.(See picture 2-28)

38

Picture 2-28

32K/40K/2Mpts memory depth Series operate steps:

(1) Press the “HORI MENU” button to enter the “Horizontal menu”.

(2) Turn the “S/div” knob to change the main timebase scale.

(3) Press the “Delayed” option button to select “On”.

Turn the “Horizontal Position” knob (adjust window’s position) to select the window that your need and expanded window waveform display on the below half screen at the same time(See picture 2-28-1)

Picture 2-28-1

Notes:1GSa/s real-time Series:200MHz Bandwidth DSO memory depth only 5K/CH

39

2.8 Trigger System

The trigger determines when the oscilloscope starts to acquire data and display a waveform. When a trigger is set up properly, the oscilloscope converts unstable displays or blank screens into meaningful waveforms.

Here are three buttons and one Knob in the Trigger area. Showing as Picture.2-29:

LEVEL knob

Picture 2-29

■

“TRIG MENU” Button: Press the “TRIG MENU” Button to display the “Trigger

Menu”.

■

“LEVEL” Knob: The LEVEL knob is to set the corresponding signal voltage of trigger point in order to sample. Press the “LEVEL” knob can set trigger level to zero.

■

“SET TO 50％” Button: Use the “SET TO 50%” button to stabilize a waveform quickly. The oscilloscope can set the Trigger Level to be about halfway between the minimum and maximum voltage levels automatically. This is useful when you connect a signal to the EXT TRIG BNC and set the trigger source to Ext or Ext/5.

■

“FORCE” Button: Use the FORCE button to complete the current waveform acquisition whether the oscilloscope detects a trigger or not. This is useful for

SINGLE acquisitions and Normal trigger mode.

■

Pre-trigger/Delayed trigger: The data before and after trigger the trigger position is typically set at the horizontal center of the screen, in the full-screen display the

6div data of pre-trigger and delayed trigger can be surveyed. More data of pre-trigger and 1s delayed trigger can be surveyed by adjusting the horizontal position.

40

The feature is very useful because you can see the events that led up the trigger point everything to the right of the trigger point is called posttrigger information the amount of delay range (pre-trigger and posttrigger information) available is dependent on the sweep speed selected.

2.8.1 Signal Source

You can use the Trigger Source options to select the signal that the oscilloscope uses as a trigger. The source can be any signal connected to a channel BNC, to the

EXT TRIG BNC or the AC power line (available only with Edge triggers).

2.8.2 Trigger Type

The scopes have five trigger types: Edge, Video, Pulse, Slope, and

Alternative.

■

Edge Trigger

Use Edge triggering to trigger on the edge of the oscilloscope input signal at the trigger threshold.

Table 2-13 Edge Trigger function Menu:

Option Setting Explain

Type Edge With Edge highlighted, the rising or falling edge of the input signal is used for the trigger.

Source CH1

CH2

Triggers on a channel whether or not the waveform is displayed.

EXT Does not display the trigger signal; the Ext option uses the signal connected to the EXT TRIG front-panel BNC and allows a trigger level range of

-1.2V to +1.2V.

Slope

EXT/5

AC Line

Same as Ext option, but attenuates the signal by a factor of five, and allows a trigger level range of

+6V to -6V.This extends the trigger level range.

This selection uses a signal derived from the power line as the trigger source; trigger coupling is set to

DC and the trigger level to 0 volts.

Trigger on Rising edge of the trigger signal.

Trigger on Falling edge of the trigger signal.

Trigger on Rising edge and Falling edge of the trigger signal.

41

Mode

Auto

Normal

Use this mode to let the acquisition free-run in the absence of a valid trigger; This mode allows an untriggered, scanning waveform at 100 ms/div or slower time base settings.

Use this mode when you want to see only valid triggered waveforms; when you use this mode, the oscilloscope does not display a waveform until after the first trigger.

Single when you want the oscilloscope to acquire a single waveform, press the “SINGLE ”button.

Enter the “Trigger Setup Menu”(See table 2-14). Set up

Table 2-14 Trigger Setup function menu

Option Setting Explain

Coupling

Holdoff

DC

AC

HF Reject

LF Reject

Passes all components of the signal

Blocks DC components and attenuates signals below 17 0 Hz. attenuates the high-frequency components above

140kHz.

Blocks the DC component and attenuates the low-frequency components below 7 kHz.

Using the “universal” knob to adjust holdoff

Holdoff

Reset

Return time(sec)，the holdoff value is displayed.

Reset holdoff time to 100ns.

Return the first page of “ Trigger main menu”.

Operate Instruction:

Picture 2-30

1. Set up Type

1) Press the “TRIG MENU” button to display “Trigger” menu.

42

2) Press the “Type” option button to select “Edge”.

2. Set up Source

According to input signal, press the “Source” option button to select “CH1”,

“CH2”, “EXT”, “EXT/5”or “AC Line”.

3. Set up Slope

Press the “Slope” option button to select “ ” , “ ” or “ ” .

4. Set up Trigger mode

Press the “Trigger mode” option button to select “Auto”, “Normal”,

“Single”.

Auto: The waveform refresh at a high speed whether the trigger condition is satisfied or not.

Normal: The waveform refresh when the trigger condition is satisfied and waits for next trigger event occurring when the trigger condition is not satisfied.

Single: The oscilloscope acquire a waveform when the trigger condition is satisfied and then stops.

5. Set up Trigger coupling

a. Press the “Set up” button to enter the “Trigger Setup Menu”.

b. Press the “Coupling” option button to select “DC”, “AC”, “HF Reject” or

“LF Reject”.

■

Pulse Trigger：Use Pulse Width triggering to trigger on aberrant pulses.

Table 2-15 Pulse Trigger function Menu 1：

Option Setting

Type Pulse

Explain

Select the pulse to trigger the pulse match the trigger condition.

Select input signal source. Source CH1

CH2

EXT

EXT/5

43

When

(Positive pulse width less than pulse width setting)

(Positive pulse width larger than pulse width setting)

(Positive pulse width equal to pulse width setting)

(Negative pulse width less than pulse width setting)

(Negative pulse width larger than pulse width setting)

(Negative pulse width equal to pulse width setting)

Set Width 20.0ns～10.0s

Next

Page

Page 1/2

Select how to compare the trigger pulse relative to the value selected in the Set

Pulse Width option.

Selecting this option can turn the universal to set up the pulse width.

Press this button to enter the second page.

Picture 2-31

Table 2-16 Pulse Trigger function Menu 2：

Option

Type

Setting

Pulse

Explain

Select the pulse to trigger the pulse match the trigger condition.

Mode Auto

Normal single

Select the type of triggering; Normal mode is best for most Pulse Width trigger applications.

Set up Enter the “Trigger setup menu”.

Next Page Page 2/2 Press this button to return the first page.

44

Picture 2-32


1. Set up Type

1) Press the “TRIG MENU” button to display “Trigger menu”.

2) Press the “Type” option button to select “Pulse”.

2. Set up condition

Press the “When” option button to select “ ”、“ ”、“

“ ”or“ ”。

3. Set up pulse width

Turn the “Universal” knob to set up width.

■

Video Trigger：Trigger on fields or lines of standard video signals.

Table 2-17 Functional Manu of Video Trigger 1:

”、“ ”、

Option Setting

Type Video

Source

Polarity

CH1

CH2

EXT

EXT/5

(Normal

)

(Inverted)

Instruction

When you select the video type, put the couple set to the AC, then you could trigger the NTSC,PAL and

SECAM video signal.

Select the input source to be the trigger signal.

Ext and Ext/5 use the signal applied to the EXT TRIG connector as the source.

Normal triggers on the negative edge of the sync pulse.

Inverted triggers on the positive edge of the sync pulse.

45

All lines

Odd field

Even Field

Next 1/2

Select appropriate video sync.

Enter the second page of

“Video trigger menu”.

Picture 2-33

Table 2-18 Functional Manu of Video Trigger 2:

Option Setting Instruction

Type Video

Standard

Mode

NTSC

Pal/Secam

Auto

When you select the video type, put the couple set to the

AC, then you could trigger the

NTSC,PAL and SECAM video signal.

Select the video standard for sync and line number count.

Use this mode to let the acquisition free-run in the absence of a valid trigger; This mode allows an untriggered, scanning waveform at

100 ms/div or slower time base settings.

Normal Use this mode when you want to see only valid triggered waveforms; when you use this mode, the oscilloscope does not display a waveform until after the first trigger.

Set up

Next Page

Single

Page 2/2 when you want the oscilloscope to acquire a single waveform, press the

“SINGLE ”button.

Enter the “Trigger setup menu”.

Return the first page of “Video

Trigger menu”.

46


Picture 2-34

1. Set up Type

1) Press the “TRIG MENU” button to display “Trigger”

2) Press the “Type” option button to select “Video”.

2. Set up Polarity

Press the “Polarity” option button to select “

3. Set up synchronization

” or “ ”.

1) Press the “Sync” option button to select “All Lines”, “Line Num”, “Odd Field”, and “Even Field”.

2) If you select “Line Num”, you can turn the “Universal” knob to set the appointed line number.

4. Set up Standard

1) Press the “Next Page Page 2/2” option button.

2) Press the “Standard” option button to select “PAL/SECAM” or “NTSC”.

■

Slope Trigger：Trigger on positive slope of negative slope according to setup time of the oscilloscope.

Table 2-19 Slope trigger function menu 1


Type Slope Trigger on positive slope of negative slope according to setup time of the oscilloscope.

Source

CH1

Select trigger source.

CH2

47

When

Time

Next Page

EXT

EXT/5

〈 Set time〉

Page 1/2

Select trigger condition.

Turn the “Universal” knob to set slope time. Time setup range is

20ns-10s.

Enter the second page of slope trigger.

Picture 2-35

Table 2-20 Slope trigger function menu 2


Type Slope Trigger on positive slope of negative slope according to setup time of the oscilloscope.

Vertical Select the trigger level that can be adjusted by “LEVEL” knob. You can adjust “LEVEL

A”, “LEVEL B” or adjust them at the same time.

Mode

Auto

Use this mode to let the acquisition free-run in the absence of a valid trigger; This mode allows an untriggered, scanning waveform at

100 ms/div or slower time base settings.

Normal Use this mode when you want to see only valid triggered waveforms;

48

Set up

Next Page

Single

Page 2/2 oscilloscope does not display a waveform until after the first trigger. when you want the oscilloscope to acquire a single waveform, press the

“SINGLE ”button.

Enter the “Trigger setup menu”(See table 2-14).

Return the first page of slope trigger.

Picture 2-36


Follow nest steps if you select “Slope trigger”:

1. Input a signal to channel 1 or channel 2.

2. Press the “AUTO” button.

3. Press the “TRIG MENU” button to enter “Trigger menu”.

4. Press the “Type” option button to select “Slope”.

5. Press the “Source” option button to select “CH1” or “CH2”.

6. Press the “When” option button to select “ ”, “ ”,

“ ”, “ ”,“ ”或 “ ”.

7. Press the “Time” button, turn the “Universal” knob to adjust slope time.

8. Press the “Next Page Page 1/2” option button to enter the second page of “Slope trigger menu”.

9. Press the “Vertical” option button to select trigger level that can be adjusted.

10. Turn the “LEVEL” knob.

■

Alternative trigger

49

The trigger signal comes from two vertical channels when you use alternative trigger. In this mode, you can observe two irrelative signals at the same time. You can select different trigger types for two vertical signals, and selected types cover edge, pulse, video and slope trigger. Trigger information of two channel signals display on the bottom right of the screen.

Picture 2-37

Table 2-21 Set trigger mode to edge trigger function menu 1:


Type Alternative The trigger signal comes from two vertical channels when you use alternative trigger. In this mode, you can observe two irrelative signals at the same time.

Source CH1

CH2

Set trigger type information for CH1 signal


Mode Edge

Set trigger type of the vertical channel signal to

Edge

Slope

Triggering on rising edge.

Triggering on falling edge.

Triggering on rising edge and falling edge.

Enter the “Trigger setup menu”(See table 2-14). Set up

Table 2-22 Set trigger mode to pulse trigger function menu 1:

Type Alternative

Source

CH1

CH2

The trigger signal comes from two vertical channels when you use alternative trigger. In this mode, you can observe two irrelative signals at the same time.



50

When

Select how to compare the trigger pulse relative to the value selected in the Set Pulse Width option.

Next Page Page 1/2

Enter the second page of Alternative trigger menu.

Table 2-23 Set trigger mode to pulse trigger function menu 2:

Set Width

Set up

Next Page

20.0ns ～

10.0s

Selecting this option can turn the universal to set up the pulse width.

Enter the “Trigger Setup Menu”(see table 2-14).

Page 2/2 Press this button to return the first page.

Table 2-24 Set trigger mode to video trigger function menu1:


Type Alternative The trigger signal comes from two vertical channels when you use alternative trigger. In this mode, you can observe two irrelative signals at the same time.

Source

CH1

CH2



Mode Video

Set trigger type of the vertical channel signal to

Video trigger.

Polarity

(Normal

)

(Inverted)

Next Page Page 1/2

Normal triggers on the negative edge of the sync pulse.

Inverted triggers on the positive edge of the sync pulse.

Enter the second page of Alternative trigger menu.

Table 2-25 Set trigger mode to video trigger function menu 2:


Sync Line Num

All lines

Odd field

Even Field

Standard NTSC

Pal/Secam

Select appropriate video sync.

Select the video standard for sync and line number count.

Next Page Page 1/2 Enter the second page of Alternative trigger menu.

51

Table 2-26 Set trigger mode to slope trigger function menu 1


Type

Source

Alternative The trigger signal comes from two vertical channels when you use alternative trigger. In this mode, you can observe two irrelative signals at the same time.

CH1

CH2



Mode Slope

Set trigger type of the vertical channel signal to slope trigger.

When Select slope trigger condition.

Next Page Page 1/2 Enter the second page of the alternative trigger.

Table 2-27 Set trigger mode to slope trigger function menu 2


Time

〈 Set time〉

Vertical

Set up

Next Page

Page 2/2

Turn the “Universal” knob to set the slope time.

Time setup range is 20ns-10s.

Select the trigger level that can be adjusted by

“LEVEL” knob. You can adjust “LEVEL A”,

“LEVEL B” or adjust them at the same time.

Enter the “Trigger setup menu”(see table 2-14).

Return the first page of “Alternative trigger menu”.


Observe two irrelative channel signals, follow these steps：

1. Input two irrelative signals to channel 1 and channel 2.

2. Press the AUTO button.

3. Press the TRIG MENU button to enter “trigger menu”.

4. Press the “Type” option button to select “Alternative”.

5. Press the “Source” option button to select “CH1”.

6. Press the “S/div” knob to optimize waveform display.

7. Press “Mode” option button to select “Edge”, “Pulse”, “Slope” or “Video”.

8. Set the trigger according to trigger edge.

52

9. Press the “Source” option button to select “CH2”.

10. Turn the “S/div” knob to optimize waveform display.

11. Repeat steps 7 and 8.

2.8.3 Coupling

Use the “Coupling” to make sure the signal that passes the trigger circuit. It is useful for us to gather a steady wave form.

If you use the trigger coupling, you should press the “TRIGGER” button and then select “edge” or “Pulse” trigger. Then select the “coupling” option.

2.8.4 Position

The horizontal position control establishes the time between the trigger position and the screen center. You can adjust the horizontal “POSITION” knob control to view waveform data before the trigger, after the trigger, or some of each. When you change the horizontal position of a waveform, you are changing the time between the trigger and the center of the display actually. (This appears to move the waveform to the right or left on the display.)

2.8.5 Slope & Level

The Slope and Level controls help to define the trigger. The Slope option (Edge trigger type only) determines whether the oscilloscope finds the trigger point on the rising or the falling edge of a signal.

The TRIGGER LEVEL knob controls where on the edge the trigger point occurs.

Rising edge

Falling edge

Picture 2-38

53

Note: ● Press the SINGLE button when you want the oscilloscope to acquire a single waveform.

●. Trigger coupling affects only the signal passed to the trigger system. It does not affect the bandwidth or coupling of the signal displayed on the screen.

● Normal Polarity Sync triggers always occur on negative-going horizontal sync pulses. If the video waveform has positive-going horizontal sync pulses, use the Inverted Polarity selection.

2.8.6 Trigger Holdoff

You can use the Trigger Holdoff function to produce a stable display of complex waveforms. Holdoff is time between when the oscilloscope detects one trigger and when it is ready to detect another. The oscilloscope will not trigger during the holdoff time. For a pulse train, you can adjust the holdoff time so the oscilloscope triggers only on the first pulse in the train.

Trigger position

Trigger level

Holdoff time

Picture 2-39

If you want to change holdoff time, please follow next operations:

1. Press the “TRIG MENU” button to show the “TRIG Menu”.

2. Press the “Type” option button to select trigger type.

3. Press the “Set up” option button to enter the “Trigger setup menu”.

4. Press the “Holdoff” option button，turn the “Universal” knob to change the holdoff time until the waveform trigger steadily.

Note：● Use trigger holdoff to help stabilize the display of aperiodic waveforms.

54

2.9 Acquiring Signals system

Showing as the follow picture，the “ACQUIRE” button for Acquiring Signals system is at the menu.

Acquire button

Picture 2-40

Table 2-28 The Function manual of Acquiring Signals:

Option Setting

Acquisition Sampling

Introduction

Use for sampling and accurately display most of the waveform.

Peak

Check

Average Use to reduce random or uncorrelated noise in the signal display.

Averages

〔 4, 16,32

,64,128,

256〕

Sinx/x On off

Detect the noise and decrease the possibility of aliasing.

Select number of averages.

Use sin interpolation

Use linear interpolation

Sa Rate

Real time Set the Sampling mode to Real time.

Display system sampling rate.

When you acquire a signal, the oscilloscope converts it into a digital form and displays a waveform. The acquisition mode defines how the signal is digitized and the time base setting affects the time span and level of detail in the acquisition.

■

Sampling: In this acquisition mode, the oscilloscope samples the signal in evenly spaced intervals to construct the waveform. This mode accurately represents signals most of the time.

55

Advantage: You can use this mode to reduce random noise.

Disadvantage: This mode does not acquire rapid variations in the signal that may occur between samples. This can result in aliasing may cause narrow pulses to be missed. In these cases, you should use the Peak Detect mode to acquire data.

Picture 2-41 Sampling modes

■

Peak Detect: Peak Detect mode capture the maximum and minimum values of a signal Finds highest and lowest record points over many acquisitions.

Advantage: In this way, the oscilloscope can acquire and display narrow pulses, which may have otherwise been missed in Sample mode.

Disadvantage: Noise will appear to be higher in this mode.

■

Picture 2-42 Peak Detect mode

Average: The oscilloscope acquires several waveforms, averages them, and displays the resulting waveform.

56

Advantage: You can use this mode to reduce random noise.

■

Picture 2-43 Average mode

Equivalent Time Sampling:

The equivalent time sampling mode can achieve up to 20 ps of horizontal resolution

(equivalent to 50GSa/s). This mode is good for observing repetitive waveforms.

■

Real Time Sampling: The scope has the highest Real-time sampling rate up to 500MSa/s.

■

“RUN/STOP” Button: Press the RUN/STOP button when you want the oscilloscope to acquire waveforms continuously. Press the button again to stop the acquisition.

■

“SINGLE” Button: Press the SINGLE button to acquire a single waveform. Each time you push the SINGLE button, the oscilloscope begins to acquire another waveform. After the oscilloscope detects a trigger it completes the acquisition and stops.

When you push the RUN/STOP or SINGLE buttons to start an acquisition, the oscilloscope goes through the following steps:

1）. Acquire enough data to fill the portion of the waveform record to the left of the trigger point. This is also called the pre-trigger.

2）. Continue to acquire data while waiting for the trigger condition to occur.

3）. Detect the trigger condition.

57

4）. Continue to acquire data until the waveform record is full.

5）. Display the newly-acquired waveform.

■

Base time: The oscilloscope digitizes waveforms by acquiring the value of an input signal at discrete points. The time base allows you to control how often the values are digitized.

To adjust the time base to a horizontal scale that suits your purpose, use the

S/div knob.

■

Time Domain Aliasing：

Aliasing occurs when the oscilloscope does not sample the signal fast enough to construct an accurate waveform record. When this happens, the oscilloscope displays a waveform with a frequency lower than the actual input waveform, or triggers and displays an unstable waveform.

Actual high-frequency waveform

Apparent low-frequency waveform due to aliasing

Sampled points

Picture 2-44

Operate Introduction:

Set up Sampling Format

You can press the “Acquisition” option button or turn the “Universal” knob to select “Sampling” mode, “Peak Detect” mode or “Average” mode..

Set up Averages

When you select “Average” format, you can press the “Averages” option button to select “4”, “16”, “32”, “64”, “128”or “256”.

Set up function interpolation

Press the “Sinx/x” option button to select “On” or “Off”,show as following pictures.

58

“On” is sin interpolation

Picture 2-45

“Off”is linear interpolation.

Picture 2-46

Set up Sampling mode

Press the “Mode” option button to select “Real Time” or “Equ Time”.

Set up Sampling rate

In “Real time” mode, turn the “S/div” knob to display the real time sampling rate at corresponding time base scale; In “Equ time” mode, turn the

“S/div” knob to display the Equ time sampling rate at corresponding time base scale”.

59

2.10 Display System

The display function could be expressed by the “DISPLAY” Button.

Display System

Picture 2-47

Table 2-29 Display system function menu 1:


Persist

Intensity

Brightness

Next Page

Dots

Off

1 sec

2 sec

5 sec

Infinite

<Intensity>

<Brightness>

Page 1/3 adjacent sample points in the display.

Dots：display sample points

Directly.

Sets the length of time each displayed sample point remains displayed.

Set waveforms’ intersity.

Set grid brightness.

Press this button to enter second page.

Picture 2-48

60

Table 2-30 Display system function menu 2:

Option

Format

Setting

YT

XY

Introduction

YT format displays the vertical voltage in relation to time (horizontal scale).

XY format displays a dot each time a sample is acquired on channel 1 and channel 2.

Screen Normal set to normal mode.

Inverted set to invert color display mode.

Grid Display grids and axes on the screen.

Turn off the grids.

Turn off the grids and axes.

Menu

Display

Next

Page

2sec

5sec

10sec

20sec

Infinite

Page 2/3

Set menu display time on screen.

Press this button to enter the sencond page of “Display menu”.

Picture 2-49

Table 2-31 Display system function menu3:

Optio n

Setting

Skin Classical

Modern

Tradition

Succinct

Next

Page

Page 3/3

Introduction

Set up screen style.

Press this button to return the first page.

61

Operate Introduction:

Picture 2-50

1. Set up waveform display type

1) Press the “DISPLAY” button to enter the “Display” menu.

2) Press the “Type” option button to select “Vectors” or “Dots”.

2. Set up Persist

Press the “Persist” option button to select “Off”, “1 Sec”, “2 Sec”, “5Sec” or “Infinite”. You can use this option to observe some especial waveforms.

Picture 2-51

3. Set up Intensity

1) Press the “Intensity” option button and turn the “Universal” knob to adjust waveforms’ intensity.

4. Set up Brightness

1) Press the “Brightness” option button and turn the “Universal” knob to

62

adjust grid brightness.

4. Set up display format

1) Press the “Next Page” option button to enter second display menu.

2) Press the “Format” option button to select “YT” or “XY”.

5. Set up Screen

Press the “Screen” option button to select “Normal” or “Inverted” to set the screen display color.

6. Set up Grid

Press the “Grid” option button to select “ ”,

“ ”or“ ”to set the screen whether display grid or not.

7. Set up Menu Display

Press the “Menu Display” option button to select “2 sec”, “5sec”,

“10sec”, “20sec” or “Infinite” to set menu display time on screen.

8. Set Skin

Press the “skin” option button or turn the “Universal” knob to select

“Classical”, “Modern”, “Traditional” or “Succinct”.

2.10.1 X-Y Format

Use the XY format to analyze phase differences, such as those represented by

Lissajous patterns. The format plots the voltage on channel 1 against the voltage on channel 2, where channel 1 is the horizontal axis and channel 2 is the vertical axis.

The oscilloscope uses the untriggered Sample acquisition mode and displays data as dots.

XY mode has a breakthrough that trad oscilloscopes restrict sampling rate at

1MSa/s，4Kpts memory depth Series support 5KSa/s～200MSa/s (1-2.5-5 sequence) adjusted. 1GSa/s rate-time series support 25KSa/s～100MSa/s;2GSa/s rate-time series support 10KSa/s～1GSa/s (1-2.5-5 sequence) adjusted

Note：The oscilloscope can capture a waveform in normal YT mode at any sampling rate. You can view the same waveform in XY mode.

Operation steps ：

●

Channel 1“Volt/div”and vertical “POSITION” set up the horizontal scale and position.

●

Channel 2“Volt/div”and vertical “POSITION” set up the horizontal scale and position.

●

Turn the “S/div” knob to adjust the sampling rate

●

The following functions are forbidden at XY display form:

●

Benchmark wave form and wave mathematic

●

Cursor

●

Auto（resets display format to YT）

●

Trigger Control

●

Horizontal Position Knob

●

Vector Display Type

●

Scan Display

Note：When the display Type is set to Vectors, the oscilloscope connects the sample points by using digital interpolation.

Interpolation mode contain linearity interpolation and sin(x)/x interpolation. Sin(x)/x interpolation is suitable for real time mode.

It is effective at 250ns/div or at faster time base in real time mode.

64

2.11 Measure System

The Oscilloscope displays the voltage in relation to time and test the wave form displayed. There are scale, Cursor and auto measure modes.

2.11.1 Scale Measurement

This method allows you to make a quick, visual estimate. For example, you might look at waveform amplitude and determine that it is a little more than 100 mV.

You can take simple measurements by counting the major and minor graticule divisions involved and multiplying by the scale factor. For example, if you counted five major vertical graticule divisions between the minimum and maximum values of a waveform and knew you had a scale factor of 100mV/div, then you could easily calculate your peak-to-peak voltage as follows:

5 divisions x 100 mV/division = 500 mV.

2.11.2 Cursor Measurement

Picture 2-50 displays the cursor button on the front-panel for this menu.

Cursors Button

Picture 2-52

Press the “CURSORS” button to display the “Cursor” Menu.

The cursor measurement has three modes: Manual, Track and Auto Measure.

Manual Mode

Table 2-32 Manual cursor function menu:

65

Cursor Mode Manual In this menu, set the manual cursor measure.

Time Use cursor to measure time parameters.

Cur A

Cur B

CH2

MATH

REFA

REFB

Select this option，turn the “Universal” knob to adjust cursor A.

Select this option，turn the “Universal” knob to adjust cursor B.

In this mode, the screen displays two horizontal parallel cursors or vertical parallel cursors to measure voltage or time. You can move the cursor by turning the

“Universal” knob. Before using cursors, you should make sure that you have set the signal source as the channel for measuring.

■ Voltage Cursor: Voltage cursors appear as horizontal lines on the display and measure the vertical parameters.

■ Time Cursor: Time cursors appear as vertical lines on the display and measure the horizontal parameters.

■ Cursor Moving: Use the “universal” knob to move cursor1 and cursor2 .They could be moved when the corresponding cursor option are selected, and cursor value will display on the bottom left and top left of the screen when you move the cursor.

To do manual cursor measurements, follow these steps:

1. Press CURSOR button to enter the cursor function menu.

2. Press the “Cursor Mode” option button to select “Manual”.

3. Press the “Type” option button to select “Voltage” or “Time”.

4. Press the “Source” option button to select “CH1”, “CH2”, “MATH”, “REFA” or

“REFB” according to input signal channel.

5. Select “Cur A”, turn the “Universal” knob to adjust Cursor A.

6. Select “Cur B”, turn the “Universal” knob to adjust cursor B.

7. The measurement values are displayed on the top of the left corner:

If the measurement type is set to “Voltage”, the values are:

66

The value of Cur A: CurA

The value of Cur B: Cur B

The voltage increment between Cursor A and Cursor B: △V

If the measurement type is set to “Time”, the values are:

The value of Cur A: CurA

The value of Cur B: Cur B

The time increment between Cursor A and Cursor B: T

The reciprocal of time increment between Cursor A and Cursor B: 1/ T

Picture 2-53

Track mode

Table 2-33 Track mode function menu:

Cursor Mode Track

Cursor A CH1

CH2

Cursor B

Cur A

NONE

CH1

CH2

NONE

Cur B

In this mode, set track cursor measure.

Set the input signal channel that the

Cursor A will measure.

Set the input signal channel that the

Cursor B will measure.

Select this option, turn the “Universal” knob to adjust horizontal coordinate of

Cursor A.

Select this option, turn the “Universal” knob to adjust horizontal coordinate of

Cursor B.

In this mode, the screen displays two cross cursors. The cross cursor sets the position on the waveform automatically. You could adjust cursor’s horizontal position

67

on the waveform by turning the “Universal” knob. The oscilloscope displays the values on the top of the right screen.

To do track cursor measurement, follow these steps:

1. Press CURSOR button to enter the cursor measure function menu.

2. Press the “Cursor Mode” option button to select “Track”.

3. Press the “Cursor A” option button to select the input signal channel.

4. Press the “Cursor B” option button to select the input signal channel.

5. Select “Cur A”, turn the “Universal” knob to move Cursor A horizontally.

6. Select “Cur B”, turn the “Universal” knob to move Cursor B horizontally.

7. The measurement values are displayed on the left of the top corner:

A→T: The horizontal position of Cursor A (Time cursor centered around the midpoint of screen).

A→V: The Vertical position of Cursor A (Voltage cursor centered around channel ground level).

B→T: The horizontal position of Cursor B (Time cursor centered around the midpoint of screen).

B→V: The Vertical position of Cursor B (Voltage cursor centered around channel ground level).

△

T: Horizontal space between Cursor A and Cursor B (Time value between two cursors).

1/△T: The reciprocal of horizontal space between cursor A and cursor B.

△

V: Vertical space between Cursor A and Cursor B (Voltage value between two cursors).

68

Picture 2-54

Auto mode

Table 2-34 Auto mode function menu:


Cursor Mode Auto Set to auto cursor measure mode.

This mode will take effect with automatic measurements. The instruments will display cursors while measuring parameters automatically. These cursors demonstrate the physical meanings of these measurements.

To do auto cursor measurements, follow these steps:

1. Press the CURSOR button to enter “Cursor measure menu”.

2. Press the “Cursor Mode” option button to select “Auto”.

3. Press the “MEASURE” button to enter “Auto cursor measure mode menu” to select the parameter that you want to measure.

Picture 2-55

69

2.11.3 Auto Measurement

“MEASURE” is Automatic measure function button.

Auto Measurement

button

Picture 2-56

When you take automatic measurements, the oscilloscope does all the calculating for you. Because the measurements use the waveform record points, they are more accurate than the graticule or cursor measurements.

Press the ‘MEASURE’ for the Automatic Test.

There are three auto measurement types: Voltage Measure, Time Measure and Delay

Measure. There are thirty two measure parameters in all and display five parameters on the right of screen at one time

Table 2-35 Auto measure function menu 1:

Option Instruction

Voltage Press this button to enter the Voltage measure menu.

Time

Return

Press this button to enter the Time measure menu.

Delay Press this button to enter the Delay measure menu.

All Mea Press this button to enter the All Measurement menu.

Press this option button to return the home page of the auto measure menu.

70

Picture 2-57

Table 2-36 Auto measure function 2-Voltage measure menu:

Option Setting

Source

CH1、CH2、MATH

REFA、REFB

Instruction

Select input signal source for

Voltage measure.

Type Vmax, Vmin, Vpp, Vamp,

Vtop, Vbase, Cycle Mean,

Press the “Type” button or turn the “Universal” knob to select

Mean, Cycle Vrms, Vrms, Voltage measure parameter.

ROVShoot, FOVShoot,

RPREShoot, FPREShoot

、

、

、

、

、

、

、

、

、

Display the corresponding icon and measure value of your selected Voltage measure parameter.

、、、

、

Return Return to the first page of auto measurement menu.

Table 2-37 Auto measure function3-Time measure menu:

Option Setting

Source

CH1、CH2、MATH、

REFA、REFB

Instruction

Select input signal source for Time measure.

Type

Rise Time、Fall Time、Freq、

Period 、 BWidth 、 +Width 、

-Width、+Duty、-Duty

Press the “Type” button or turn the

“Universal” knob to select Time measure parameter.

、

、

、

、

、

、

Display the corresponding icon and measure value of your selected time measure parameter.

、、

Return Return to the first page of auto measurement menu.

Table 2-38 Auto measure function4-Delay measure menu:

Option Setting

Source

CH1、CH2、MATH、

REFA、REFB

Instruction

Select input signal source for

Delay measure.

71

Measure Type

Vmax

Vmin

Vpp

Vtop

Vbase

Vamp

Vavg

Mean

Crms

Vrms

Type

Phase、

FRR、FRF、FFR、FFF、

LRR、LRF、LFR、LFF

Return

、

、

、

、

、

、

、

、

Press the “Type” button or turn the

“Universal” knob to select Delay measure parameter.

Display the corresponding icon and measure value of your selected Delay measure parameter.

Return to the first page of auto measurement menu.

Table 2-39 All Measurement function menu:


Source CH1 Select input signal channel.

CH2

Voltage On

Off

Turn on the all measurement function to measure voltage parameters.

Turn of the all measurement function to measure voltage parameters.

Time On

Off

Delay On

Off

Turn on the all measurement function to measure

Time parameters.

Turn of the all measurement function to measure

Time parameters.

Turn on the all measurement function to measure

Delay parameters.

Turn of the all measurement function to measure

Delay parameters.

Return to the “All Measure main menu”. Return

Table 2-40 Introduction of the Measure Type:

Introduction

The most positive peak voltage measured over the entire waveform.

The most negative peak voltage measured over the entire waveform.

Measures the absolute difference between the maximum and minimum peaks of the entire waveform.

Measures the highest voltage over the entire waveform.

Measures the lowest voltage over the entire waveform.

Voltage between Vhig and Vlow of a waveform.

The arithmetic mean over the first cycle in the waveform.

The arithmetic mean over the entire waveform.

The true Root Mean Square voltage over the first cycle in the waveform.

The true Root Mean Square voltage over the entire waveform.

72

ROVShoot

Defined as (Vmax-Vhig)/Vamp after the waveform rising.

FOVShoot

RPREshoot

FPREshoot

Rise Time

Fall Time

BWid

+ Wid

- Wid

+ Duty

－

Duty

Phase

FRR

FRF

FFR

FFF

LRR

LRF

Defined as (Vmin-Vlow)/Vamp after the waveform falling.

Defined as (Vmin-Vlow)/Vamp before the waveform rising.

Defined as (Vmax-Vhig)/Vamp before the waveform falling.

Rise Time Measures the time between 10% and

90% of the first rising edge of the waveform.

Fall Time Measures the time between 90% and

10% of the first falling edge of the waveform.

The duration of a burst.

Measured over the entire waveform.

+ Width Measures the time between the first rising edge and the next falling edge at the waveform

50% level.

-Width Measures the time between the first falling edge and the next rising edge at the waveform

50% level.

Measures the first cycle waveform.

Positive Duty Cycle is the ratio between positive pulse width and period.

Measures the first cycle waveform.

Negative Duty Cycle is the ratio between negative pulse width and period.

The amount one waveform leads or lags another in time. Expressed in degrees, where 360 degrees comprise one waveform cycle.

The time between the first rising edge of source 1 and the first rising edge of source 2.

The time between the first rising edge of source 1 and the first falling edge of source 2.

The time between the first falling edge of source 1 and the first rising edge of source 2.

The time between the first falling edge of source 1 and the first falling edge of source 2.

The time between the first rising edge of source 1 and the last rising edge of source 2.

The time between the first rising edge of source 1 and the last falling edge of source 2.

LFR

LFF

The time between the first falling edge of source 1 and the last rising edge of source 2.

The time between the first falling edge of source 1 and the last falling edge of source 2.

If you want to measure voltage parameters, please follow next steps:

1）. Press the “MEASURE” button to enter the “Auto measurement” menu.

73

2）. Press the top first option button to enter the “second measurement menu”.

3）. Select measure type. If you press the “Voltage” option button,

“Voltage measurement” menu will display on the screen.

4）. Press the “Source” option button to select “CH1” or “CH2” according to input signal channel.

5）. Press the “Type” option button to select the parameter type that you want to measure. The corresponding icon and value will display below the measure parameter.

Picture 2-58

6）. Press the “Return” option button to return the home page of “Auto

Measurement” menu. The selected parameter and the corresponding value will display on the top first position of the home page.

You can display the other parameters and its’ value on the corresponding position using the same way, and the screen can display five parameters at one time.

If you want to measure time parameters using all measure function,

please follow next steps:

1）. Press the “MEASURE” button to enter the “Auto Measure menu”.

2）. Press the top option button to enter the second page of “Auto

Measure menu”.

3）. Press “All Mea” option button to enter the “All Measure menu”.

4）. Press “Source” option button to select input signal channel.

5）. Press the “Time” option button to select “On”. Now all of time

74

parameters value will display on the screen at the same time.（See

Picture 2-59）

Picture 2-59

75

2.12 Storage System

Showing as following picture, The SAVE/RECALL is the Storage System

Functional Button.

Storage system control button

Picture 2-60

The scope can save 2 groups’ reference waveforms, 20 groups’ setups and 20 groups’ waveforms to the oscilloscope’s internal memorizer. There is a USB Host interface in the front panel of the oscilloscope and you can save setup data, waveform data, waveform interface image, CSV file to a USB flash drive furthest at a time.

Setup data and waveform data can be recalled to the current oscilloscope or the other same model oscilloscopes. Picture data and CSV file can’t be recalled to the oscilloscope, but it can be opened on the correlative computer software.

SAVE/RECALL SETUP

Save/recall interface

Show as following pictures

Select operating object

Create new needed folder

Delete present folder

Picture 2-61

76

Picture 2-62

Select operating object

Create new files in present directorys

Delete present file

Recall stored files or present settings

Modify the file name

Return to the last menu

Picture 2-63

In this module,Setting stores to File,Waveform stores to File,storing pictures and CSV stores to USB flash drive all have this function.Users can modify the name of the file or the directorys , then store the files.

■

Save Setups to Device： The complete setup is stored in nonvolatile memory.

When you recall the setup, the oscilloscope will be in the mode from which the setup was saved.

The oscilloscope saves the current setup if you wait three seconds after the last change before you power off the oscilloscope. The oscilloscope recalls this setup the next time you apply power.

Table 2-41 Save setup to device function menu:


77

Type Setups Menu for the Storage/Recall setting in the oscilloscope

Save to Device Save setup to the oscilloscope’s internal memorizer.

Setup No.1 No.20 Press the “Setup” option button or turn the

“universal” knob to select storage position.

Save

Recall

Accomplish the storage

Recall the storage in the “Setup” operation

Picture 2-64

Save setups to the oscilloscope’s internal memorizer or recall saved setups from it .Follow these steps:

For example: Save setup that the oscilloscope displays waveform as the form of

“Dots” to the oscilloscope’s internal memorizer.

1）. Press the “SAVE/RECALL” button to enter the “SAVE/RECALL” menu.

2）. Press the “Type” option button to select “setups”.

3）. Press the “Save to” option button to select “Device”.

4）. Press the “Setup” option button to select “No.1”.

5）. Press the “DISPLAY” button to enter the “Display” menu.

6）. Press the “Type” option button to select “Dots”.

7）Press the “SAVE/RECALL” button to enter the “SAVE/RECALL” menu.

8）Press the “Save” option button.

If the display type has been changed, you want to recall this setup.

Follow these steps:

78

1） Press the “SAVE/RECALL” button to enter the “SAVE/RECALL” display menu.

2） Press the “Type” option button to select “Setups”.

3） Press the “Save to” option button to select “Device”.

4） Press the “Setup” option button or turn the “Universal” knob to select “No.1”.

5） Press the “Recall” option button.

■

Save Setup to USB flash drive

Table 2-42 Save setup to USB flash drive function menu:

Option Setting

Type Setups

Save to File

Save

Introduction

Menu for the Storage/Recall settings.

Save setup data to USB flash drive.

Go to the Save/Recall interface

Picture 2-65

Save setup to USB flash drive, follow these steps：

For example: Save setup that the oscilloscope displays waveform as the form of “Dots” to the oscilloscope’s internal memorizer.

1） Press the “SAVE/RECALL” button to select “Setups”.

2） Insert USB flash drive to USB host port of the oscilloscope and wait that the oscilloscope has initialized USB flash drive (about ten seconds).

3） Press the “Save to” option button to select “file”.

4） Press the “Save” option button then you’ll go into the Save/Recall interface.

79

5） Press the “New folder” button to creat a new folder

6） Press the “Del folder” option button to delete a folder

7） Press the “Modify” option button to modify a folder.

8） Press the “New file” option button to creat a new file

9） Press the “Del file” option button to delete a file

10) Press “the next page ” option button and press the “Rename” option button to modify the name of the file or the folder.

11) Press the “Confirm”option button and you save the set to the USB drive.

Recall setup data from USB flash drive, follow these steps:

1） Press the “SAVE/RECALL” button.

2） Press the “Type” button to select “Setups”.


4） Press the “Save to” option button to select “File”.

5） Press the “Save” option button then you’ll go into the Save/Recall interface .

6） Choose the file you want then press the “Load” option button (about five seconds, there is a prompting message that “Read data success”), now setup data have been recalled from USB flash drive.

■

RECALL FACTORY

You can use this option to recall the factory setup.

Table 2-43 Factory function menu:


Type Factory

Load

To view the Factory setup.

Recall the Factory setup.

80

Picture 2-66

SAVE/RECALL WAVEFORM

■

SAVE/RECALL CAPTURED WAVEFORM： The oscilloscope must display any waveform that you want to save. The oscilloscopes can store twenty captured waveforms in nonvolatile memory.

■

Save waveforms to Device

Table 2-44 Save waveform to device function menu:

Option Setup Introduction

Save to Device waveforms in the oscilloscope.

Save waveforms to the oscilloscope’s internal memorizer. waveform No.1 to No.20 Press the “waveform” option button or turn the “Universal” knob to select storage position.

Save Accomplish the storage.

Recall Recall the storage in the “waveform” operation

81

Picture 2-67

Save waveforms to the oscilloscope’s internal memorizer, follow these steps:

1）. Input a sine signal to channel 1 and press the “Auto” button.

2）. Press the “SAVE/RECALL” button to enter “SAVE/RECALL” display menu.

3）. Press the “Type” option button to select “waveforms”.


5）. Press the “waveform” option button or turn the “Universal” knob to select

“No.1”.

6）. Turn the “Volts/div” knob or “S/div” knob to adjust the waveform that you want to need.

7）. Press the “Save” option button.

Recall the saved waveform from the oscilloscope’s internal memorizer, follow these steps:

1）. Press the “SAVE/RECALL” button to enter “SAVE/RECALL” display menu.

2）. Press the “Type” option button to select “waveforms”.


4）. Press the “waveform” option button or turn the “Universal” knob to select

“No.1”.

5）. Press the “Recall” option button.

82

■

Save waveforms to USB flash drive

Table 2-45 Save waveforms to USB flash drive function menu：

Option Setup Introduction

Save to

Save

File

Menu Storage/Recall waveforms.

Save waveforms to USB flash drive.

Accomplish the storage.

Picture 2-68

Save waveforms to USB flash drive, follow these steps:

1） Input a sine signal to channel 1, press the “AUTO” button.

2） Press the “SAVE/RECALL” button to enter the “SAVE/RECALL” display menu.

3） Press the “Type” option button to select “Waveforms”.


5） Press the “Save to” option button to select “File”.

6） Press the “Save” option button then you’ll go into the Save/Recall interface.

7） Create a file then press the “Confirm”button(about ten seconds, there is a prompting message that “Save data success” displaying on the screen), now waveform data have been saved to USB flash drive.

Recall saved waveform data form USB flash drive, follow these steps:

1）. Press the “SAVE/RECALL” button.

2）. Press the “Type” button to select “Waveforms”.

3）. Insert USB flash drive to USB host port of the oscilloscope and wait that the oscilloscope has initialized USB flash drive (about ten seconds).

4）. Press the “Save to” option button to select “File”.

5）. Press the “Save” option button then go into the Save/Recall interface.

83

6）. Choose the file you want then press the “Load” option button (about five seconds, there is a prompting message that “Recall data success” displaying on the screen), now waveform data have been recalled from USB flash drive.

■

Save Picture

Waveform interface image can be saved to USB flash drive, but they can’t be recalled. You can open them on correlative computer software.

Table 2-46 Picture storage function menu:


Type Pictures Menu for the Storage/Recall waveform interface image.

Print Key

Save

Print Picture

Save Picture

When the oscilloscope connect to the printer and “Back USB” option is set to “Printer”, select “Print Picture” and press the “PRINT” button to print the screen image.

When the USB flash drive insert to the

USB Host interface(now the USB flash drive open status icon displays on the top of the screen), select “Save picture” and press the “Save” knob to go into the Save/Recall interface.

Go to the Save/Recall interface.

Picture 2-69

Save waveform interface image to USB flash drive, follow these steps:

1). Select the screen image that you want .

2) Press the “SAVE/RECALL” button to enter “SAVE/RECALL” menu.

3). Press the “Type” option button to select “Pictures”.

4). Insert USB flash drive to USB host port of the oscilloscope and wait that the

84

oscilloscope has initialized USB flash drive (about ten seconds).

5). Press the “Print Key” option button to select “Save Picture”.

6). Press the “Save” option button then go into the Save/Recall interface”.

7). Press the “Save” buton then you’ll go into the Save/Recall interface

8). Create the picture name then press the “Confirm” button(about five seconds, there is a prompting message that “Save data success” displaying on the screen), now picture data have been saved to USB flash drive.

■

SAVE/RECALL REFERENCE WAVEFORM：

The oscilloscopes can store two reference waveforms in nonvolatile memory.

The oscilloscope can display reference waveforms at a time.

Reference waveforms are not adjustable, but the oscilloscope does display the horizontal and vertical scales at the bottom of the screen.(Refer to 2.6.4)

Save/Recall CSV

Table 2-47 CSV storage function menu:


Type CSV

Data Depth Displayed

Maximum

Para Save On

Off

Save

Menu for the Storage CSV file to USB flash drive.

Set to store displayed waveform data to CSV file.

Set to store maximum waveform data to

CSV file.

Set whether store parameters to CSV file or not.

Go to the Save/Recall interface.

85

Picture 2-70

Save CSV file to USB flash drive, follow these steps:

1). Press the “SAVE/RECALL” button to enter “SAVE/RECALL” menu.

2). Press the “Type” option button to select “CSV”.

3). Insert USB flash drive to USB host port of the oscilloscope and wait that the oscilloscope has initialized USB flash drive(about ten seconds).

4). Press the “Data Depth” option button to select “Displayed” or “Maximum”.

5). Press the “Para Save” option button to select “On” or “Off”.

6). Press the “Save” option button then you’ll go into the Save/Recall interface

7). Create a file name then press the “Confirm” button (About five seconds, there is a prompting message that “Save data success” displaying on the screen), now CSV file has been saved to USB flash drive.

86

2.13 Utility System

“UTILITY”: The Utility System Button。

Utility Setup button

Picture 2-71

Table 2-48 Utility System function menu 1:


System

Status

Sound

Displays summaries of the oscilloscope settings.

Open the key-press voice.

Close the key-press voice.

Counter On

Off

Turn on Frequency Counter

Turn off Frequency Counter.

Chinese Select interface language.

Traditional Chinese

English

Arabic

French

German

Russian

Spanish

Portuguese

Japanese

Korean

Italian

Next Page Page 1/4 Press this button to enter second page.

87

Picture 2-72

Table 2-49 Utility System function menu 2:


Do self cal

Do Self Test Screen Test

Keyboard Test

LED Test

Auto self emendation.

Run the screen detect program

Run the keyboard detect program

Run the dot lighten detect program.

Print Setup Enter the print setup menu to set print options.

Back USB Printer

Computer

Next Page Page 2/4

The oscilloscope connects to the printer using

USB cable. When you execute print function, please select “Printer”. Now the print icon displays on the top of the screen.

The oscilloscope connects to the computer using

USB cable. When you execute EasyScope software, please select “Computer”. Now the computer icon displays on the screen.

Press this button to enter third page.

Picture 2-73

88

Table 2-50 Functional Menu of the Utility System 3:

Update firmware

You can update the oscilloscope use USB flash

Driver (About need two minutes).

Pass/Fail Pres this button to enter the “Pass/Fail menu”.

Record Press this button to enter the waveform record menu.

IO Setting

Next Page

Press this button to enter the “IO Setting menu”(See table 2-52).

Page 3/4 Press this button to enter first page.

Table 2-51 IO Setting function menu:

2400

4800

9600

19200

38400

Picture 2-74

Table 2-50 Functional Menu of the Utility System 4：


Quick-Cal On

Screen-saver

Off

1min 2min

5min 10min

15min 30min

1hour 2hour

5hour Off

Do Quick-Cal operation

End up Quick-Cal operation

Set the time of Screen-saver

89

2.13.1 System status

Picture 2-75

Selecting “System Status” from the Utility Menu to display a series of information about this oscilloscope

Picture 2-76

Table 2-52 System status instruction:


Startup Times List the boot-strap times.

Software version List the software version.

Hardware Version List the hardware version.

Product type List the product type.

Serial No. List the product serial number.

90

2.13.2 Language

The oscilloscopes have twelve languages’ user menu to be selected.

Press the “Utility” button →“language” to select language.

Picture 2-77

2.13.3 Print

The oscilloscopes support PictBridge compatible printers. You can connect the back USB port of the oscilloscope to the USB port of the PictBridge compatible printer using the USB cable.

Table 2-53 Print setup option function menu 1:


Ink Saver On

Off

Layout Portrait

Landscape

Prints the screen image on a white background when you select “on”.

Print the color screen image when you select “off”.

Printer output orientation.

Paper Size Default, L, 2L, Hagaki

Postcard, Card Size, 10 x 15 cm, 4" x 6", 8" x 10", Letter,

11" x 17", A0, A1, A2, A3, A4,

A5, A6, A7, A8, A9, B0, B1,

B2, B3, B4, B5, B6, B7, B8,

B9, 89 mm, Roll (L), 127 mm Roll (2L),

100 mm Roll (4"), 210 mm

Roll(A4)

Displays Settings available on your

PictBridge compatible printer.

91

Print Key Print Key

Print Picture

Next Page Page 1/2

Select “Print Picture” option when the oscilloscope connects to the printer, press the “S/div” knob to print the picture.

Select “Save Picture” option when you insert the USB flash, press the

“S/div” knob to save the picture.

Press this option button to enter next page menu.

Picture 2-78

Table 2-54 Print setup option function menu 2:

Option Setting

Image Size Default, 2.5x3.25 in, L (3.5x5 in), 4x6 in, 2L (5x7 in), 8x10 in, 4L (7 x 10 in),

E, Card, Hagaki card, 6 x 8 cm, 7x10 cm, 9x13 cm, 10x15 cm, 13x18 cm,

15x21 cm, 18x24 cm, A4, Letter

Paper Type Default, plain, Photo, Fast Photo

Print Quality Default, Normal, Draft, Fine

ID Print

Next Page

Default, On, Off

Page 2/2

Introduction

Displays Settings available on your

PictBridge compatible printer.

Press this button to enter first page of print setup menu.

Note: 1.The Printer may override your selection for best fit.

2. If your selection is not supported by the printer, the oscilloscope uses the

Default setting.

3. The oscilloscope was designed to print to any PictBridge compatible printer. Refer to product documentation for your printer to determine if the printer is compatible with PictBridge.

92

Picture 2-79

To print screen picture, follow these steps:

1. Connect the oscilloscope to a PictBridge compatible printer.

1) Insert one end of a USB cable into the USB Device port on the oscilloscope.

2) Insert the other end of the cable into the PictBridge port on a PictBridge compatible printer.

2. Print a Screen image

1) Power on the oscilloscope and the printer (The printer recognizes the oscilloscope only when the printer is powered on).

2) Press the UTILITY button to display “UTILITY” menu.

3) Press the “Next Page” option button.

4)Press the “Back USB” option button to select “Printer”

5) Press the “Print Setup” option button to display “Print setup” menu.

6) Set up the print setup option according to your need. The oscilloscope queries the printer, and only displays options and values that the printer supports.

If you are not sure which setting to choose, select “Default” for each option.

7) Press the “Print Key” option button to select “Print Picture”.

8) Press the “PRINT” button to print screen image.

The oscilloscope takes a few seconds to capture the screen image. The settings of your printer and print speed determine how long it takes to print the data.

Additional time may be required according to the format selected.

93

Note: 1. Before connecting the oscilloscope to the printer, you must be sure that “Back USB” option having been settled to “Printer”.

2. You can use the oscilloscope while the printer is using.

3. If printing fails, check wthether the USB cable is connected to the

PictBridge port on the printer or not. If the connection is OK, but the printing is still failing, you can turn on and off the printer or oscilloscope again, before you turn on and off the printer or oscilloscope again , you must first disconnect the connection between

USB cable and USB Host port of the Printer or USB Device port of the oscilloscope, then try again.

2.13.4 Self Calibration

Self Calibration procedure can optimize the signal path at the most measurement precision..You can run this procedure at any time. If the operating temperature changes by more than 5° C or the units run less than thirty minutes,you should do the self calibration.

When you run the self Calibration, you should cut off all the probes and lead. Then press the “Utility” button to choose the “Do self cal” to show the self

Calibration Menu, and execute self calibration program according to the prompting on the screen.

Picture 2-80

94

2.13.5 Self Test

Press “UTILITY”→ “Do Self Test”

Table2-55


Screen Test Run Screen Test Program.

Keyboard Test Run Keyboard Test Program.

LED Test Run LED Test Program.

Operation Steps:

1. Screen Test:

Select “Screen Test” to enter the screen test interface. The clew words “Press

‘SINGLE’ Key to continue，Press ‘RUN/STOP’ Key to exit” is displayed, you could press the “Single” for test.

Picture 2-81

2. Keyboard Test

Select “keyboard Test” to enter the key test interface, the on-screen lathy rectangle shapes represent the front panel keys. The shapes with two arrows beside them represent the front panel knobs. The squares represent the knob presses for scale knobs. Test all keys and knobs and you should also verify that all the backlit buttons illuminate correctly.

Note：

●

When you operate, the screen would display the white (Color LCD) and black

95

(single LCD) repose.

●

The tested button or knobs corresponding area would display green (Color LCD) or white (single LCD).

●

At the bottom of the screen display “Press‘ RUN/STOP’ Key Three Times to exit” information prompt to show that press “RUN/STOP” three times for quiting the test .

Picture 2-82

3. LED test

●

Select “LED Test” to enter the lighten interface, the on-screen lathy rectangle shapes represent the front panel keys; the lathy rectangle shapes represent the front panel knobs. The squares represent the knob presses for scale knobs. The clew words

“Press ‘SINGLE’ Key to continue , Press ‘RUN/STOP’ Key to exit” is displayed, you could press the “Single” button continuously for testing, when buttons are lighted ,the corresponding area on the screen would display green(Color LCD) or white(Single LCD ).

96

Picture 2-83

2.13.6 Update Firmware

The software of the oscilloscope can be updated directly via USB Flash drive, this process needs about two minutes. Follow next steps:

1. Insert USB Flash Drive with firmware procedure to USB Host interface on the front panel of the oscilloscope.

2. Press the “UTILITY” button to enter the “Utility menu”.

3. Press “Next Page” option button to enter the third page of “Utility menu”.

4. Press the “Update Firmware” option button.

5. Press the “SINGLE” button to start updating the software according to prompt on the screen.

Turn off the oscilloscope and turn on it again, the software has been updated. The oscilloscope needs to execute “Do Self Cal” after update.

Note: Don’t cut off the power while oscilloscope is updating.

2.13.7 Pass/Fail

The Pass/Fail function can monitor changes of signals and output pass or fail signals by judging the input signal is within the predefined mask or not.

Table 2-56 Pass/Fail function menu 1:

Enable On

Off

Turn on Pass/Fail function.

Turn off Pass/Fail function.

97

Source CH1 Select Pass/Fail test on CH1.

CH2 Select Pass/Fail test on CH2.

Operate Press to run the Pass/Fail test.

Press to stop the Pass/Fail test.

Msg Display On

Off

Turn on times information display of the waveform pass/fail.

Turn off times information display of the waveform pass/fail.

Next Page Page 1/2 Press this button to enter second page of

Pass/Fail menu.

Picture 2-84

Table 2-57 Pass/Fail function menu 2:

Fail

Stop On Output On

Off

Output when fail condition detected.

Stop test when output occur.

Continue test when output occur.

Mask Setting

Return

Next Page

Press this button to enter the “Mask Setting menu”.

Return to the Pass/Fail main menu.

Page 2/2 Return the first page of the Pass/Fail menu.

98

Picture 2-85

Table 2-58 Mask Setting function menu 1:


X Mask

xdiv

Turn the “Universal” knob to set the range of horizontal clearance to the waveform.

<0.04div-4.00div>

Y Mask ydiv

Create

Mask

Turn the “Universal” knob to set the range of vertical clearance to the waveform.

<0.04div-4.00div>

Create a test mask according to the above clearance.

Location Internal

External

Select position to store created mask.

Next Page Page 1/2 Press this button to enter the second page of

“Mask Setting menu”.

Picture 2-86

99

Table 2-59 Mask Setting function menu 2:

Option Setting Instruction

Save Store created mask setting.

Load Recall stored mask setting.

Return Return to the main menu of mask setting.

Last Page Page 2/2 Return to the first page of the “Mask Setting menu”.

Picture 2-87

RUN Pass/Fail test, please follow next page:

1) Press UTILITY button to enter the “Utility menu”.

2) Press the “Next Page Page1/4” option button.

3) Press the “Next Page Page2/4” option button to enter the third page of “Utility menu”

4) Press the “Pass/Fail” option button to enter the “Pass/Fail” function menu.

5) Press the “Enable Test” option button to select “On”.

6) Press the “Source” option button to select input signal channel.

7) Press the “Next Page Page1/2”option button to enter the second page of the

“Pass/Fail menu”.

8) Press the “Mask Setting” option button to enter the first page of “Mask menu”.

9) Press the “X Mask” button; turn the “Universal” knob to adjust the horizontal clearance.

10) Press the “Y Mask” button; turn the “Universal” knob to adjust the vertical

100

clearance.

11) Press the “Create Mask” button to create mask and you also can enter the next page of “Mask menu” to recall the stored mask.

12) Enter the second page of “Pass/Fail function menu”, press the “Output” option button to set the output option.

13) Enter the first page of “Pass/Fail function menu”, press the “Operate” option button to select “ ”to run the pass/fail test.

2.13.8 Waveform Record

Picture 2-88

Waveform recorder can record input waveform from CH1 and CH2, with a maximum record length of 2500 frames. This record behavior can also be activated by the pass/fail test output, which makes this function especially useful to capture abnormal signals in long term without keeping an eye watching it.

Waveform recorder: Record the waveforms with specified interval.

Table 2-60 Waveform recorder function menu:

Option Setting

Mode Record

Play Back

Storage

Off

Source CH1

CH2

P/F-OUT

Interval

End Frame

Operate

（Record）

（Stop）

Instruction

Set Record function menu.

Set Play Back function menu.

Set Storage function menu.

Turn off waveform recorder menu.

Select record source channel.

Set time interval between record frames.

Set max number of record frames.

Press to start recording.

Press to stop recording.

101

Picture 2-89

To record waveforms, follow these steps:

1. Press the UTILITY button to enter “Utility menu”.

2. Press the “Next Page” option button to enter the third page of “Utility menu”.

3. Press the “Record” button to enter “Waveform Record Menu”.

4. Press the “Mode” option button to select “Record”.

5. Press the “Source” option button to select the input signal channel.

6. Select “Interval” option, turn the “Univeral” knob to adjust time interval between record frames.

7. Select “End Frame”, select the “Universal” knob to adjust the max record frame.

8. Press “ ”in “Operate”option to record waveform.

Play Back: Play back current record waveforms or saved record waveforms.

Table 2-61 Waveform play back function menu 1:

Option Setting

Mode Play Back

Operate

（

Run）

（

Stop）

Play Mode

Interval

Next Page Page 1/2

Instruction

Set the Play Back function menu.

Press to start playback playing.

Press to stop playing.

Set circular play mode.

Set single time play mode.

Set time interval between frames.

Enter the second page of Play Back menu.

102

Picture 2-90

Table 2-62 Waveform play back function menu 2:

Option

Start Frame

Setting

Instruction

Set start frame.

Curr_Frame Select current frame to be played.

End Frame

Return

Next Page

Page 2/2

Set End frame.

Press to return the waveform recorder main menu.

Return to the first page of Play Back function menu.

Picture 2-91

To play back current record waveforms, follow these steps:

1. Press UTILITY button to enter “ Utility menu”.

2. Press the “Mode” option button to select “Play Back”.

3. Press the “Play Mode” option button to select “ ” or “ ”.

4. Press the “Interval” option button to select time interval between play back frames.

5. Press the “Next Page 1/2” to enter the second page of “Play Back function menu”.

103

6. Select the “Start Frame” option, turn the “Universal” knob to adjust the start frame of play back waveform.

7. Select the “End Frame” option, turn the “Universal” knob to adjust the end frame of play back waveform.

8. Press the “Next Page 2/2” option button to return the first page of “Play Back menu”.

9. Press the “ ” option button in “Operate” option to play back waveforms.

2.13.9 Recorder

The waveform recorder is a kind of seamless and no-gap real time recording of waveform, means oscilloscope can save and replay waveform every time it captured. It is similar to waveform recording instrument, and the biggest recording size of its internal memory is 6M

Table 2-65 waveform recording function menu：

option description

Record record the waveform persistently

Replay

Option

Return

Replay recorded waveform, refer to table

2-66

Set the recorder properly, refer to table

2-67

Quit the recording function

Picture 2-92

Table 2-66 waveform recall function menu

Option

Stop

Description

Quit the auto-recalled waveform, then the waveform in EMS memory can be observed through altering the time base, the waveform in

EMS memory can be moved left and right

104

Previous

Next

Return

Recall the waveform again

Fast forward play the recalled waveform again

Quit the recalling interface

Table2-67 Recorder’s setting menu

Option Setting

Viewer

Record Mode

Replay Mode

Return

Full Screen

Split

Roll

Single Swee

One by One

Roll

Description

Waveform of Full screen recording and channel recalling

Waveform of recording on split screen and channel recalling,CH1 is displayed in upper half-screen,

CH2 is displayed in lower half-screen.

Recorder saves the channel waveform persistently, the latter waveform will cover the former. recorder will stop waveform saving when its memory is up to 6M. when recalling, the screen waveform refresh from left to right

When recalling, screen waveform will refresh completely according to the capturing time of each frame quit the recording setting interface

105

Picture 2-93

Recorder Operation step：

1. Press the UTILITY button to enter “Utility menu”.

2. Press the “Next Page” option button to enter the four page of “Utility menu.

3. Press the “Recorder” button to enter the Recorder manual.

4. Press the “Option” button to select the parameter which you want by yourself

5. Press the “Recorder” button to enter the Record menu and then Press the

“Start” button to start record waveform

6. After finished record waveform, then Press the “Replay” button to view the recorded waveform.

Note： ●4K/18K/24Kpts memory depth Series don’t have Recorder

function ,only with on 32K/40K/2Mpts memory depth Series

106

2.14 Online Help Function

The oscilloscope has an online help function that supplies multi-language help information, and you can recall them to help you operate the oscilloscope when you need.

Press the “HELP” button to enter the help status, then press every button to recall the corresponding help information. Note：If you want to see help information of SINGLE button and RUN/STOP button, you need to see them when you first enter the help status because you press the SINGLE button can enter next page of help information and Press the RUN/STOP button can return to the first page of help information when other button’s help information exceed one page.

All submenus of every main menu have their help information. Note: If you want to see help information of next page submenus, first you need to press the “HELP” button to exit the help status and switch to next page menu then press the “HELP” knob to enter the help status again and press the submenu option buttons to see its help information.

Picture 2-94

107

Chapter3 Application Examples

This section presents a series of application examples. These simple examples highlight the features of the oscilloscope and give you ideas for using it to solve your own test problems.

◆ Taking simple measurements

◆

Taking cursor measurements

◆

Capturing a single -shot signal

◆ Analyzing signal detail

◆ Triggering on a video signal

◆

Application of X -Y function

◆

Analyzing a differential communication signal using math functions

108

3.1Taking Simple Measurements

Observe a unknown signal in a circuit, display the signal quickly and measure the frequency and peak-to-peak amplitude.

1. Using Auto set

To quickly display a signal, follow these steps:

1. Press the CH1 button, set the Probe option attenuation to 10X and set the switch to

10X on the probe.

2. Connect the channel 1 probe to the signal.

3. Press the AUTO button.

The oscilloscope sets vertical, horizontal, and trigger controls automatically. If you want to optimize the display of the waveform,

You can adjust these controls manually till you are satisfied with the waveforms

NOTE. The oscilloscope displays relevant automatic measurements in the waveform area of the screen based on the signal type detected.

2. Taking Automatic Measurements

The oscilloscope can take automatic measurements of most displayed signals.

To measure signal frequency and peak-to-peak amplitude, follow these steps:

(1)Measure signal frequency

●

Input the signal to channel 1.

●

Press the “AUTO” button.

●

Press the “MEASURE” button to see “auto Measure Menu”.

●

Press the top option button.

●

Press the “Time” option button to enter the “Time Measure menu”.

●

Press the “Source” option button to select input signal channel.

●

Press the “Type” option button to select “Freq”

.

The corresponding icon and measure value will display on the third option area.

109

⑵

Measure signal peak -to-peak amplitude

●

Press the “MEASURE” button to display “auto measure menu”.

●

Press the top second option button.

●

Press the “Voltage” option button to enter the “Voltage measure menu”.

●

Press the “Source” option button to select input signal channel.

●

Press the “Type” option button to select “Vpp”.

The corresponding icon and measure value will display on the third option area.

110

3.2 Taking Cursor Measurements

You can use the cursors to take time and voltage measurements of a waveform. quickly

3.2.1 Measuring Ring Frequency

To measure the ring frequency at the rising edge of a signal, follow these steps:

1). Press the “CURSORS” button to see the “Cursor Menu”.

2). Press the “Mode” button to select “Manual”.

3). Press the “Type” option button and select “Time”.

4). Press the “Source” option button and select“CH1”.

5). Press the “CurA” button and turn the universal knob to place the cursor A on one peak of the ring.

6). Press the “Cur B” button and turn the universal knob to place the cursor B on the nearest peak of the ring.

You can see the delta time and frequency (the measured ring frequency) on the top left of the screen.

Picture 3-1

111

3.2.2 Measuring Ring Amplitude

To measure the amplitude, follow these steps:

1). Press the “CURSORS” button to see the Cursor Menu.

2). Press the “Mode” button to select “Manual”.

3). Press the “Type” option button and select “Voltage”.

4). Press the “Source” option button and select “CH1”.

5). Press the “CurA” option button and turn the universal knob to place the cursor A on the highest peak of the ring.

6). Press the “CurB” option button and turn the universal knob to place the cursor B on the lowest peak of the ring.

You can see the following measurements on the top of the left screen:

●

The delta voltage (peak-to-peak voltage of the ringing)

●

The voltage at Cursor A.

●

The voltage at Cursor B.

Picture 3-2

112

3.3 Catch the single signal

To capture a single event, you need to gather some pre-test knowledge of the signal in order to correctly set up the trigger level and slope .if you are not sure the instance of the signal, you can observe it through auto or normal trigger mode to ensure the trigger level and slope.

The following steps show you how to use the oscilloscope to capture a single event.

1. Set the Probe option attenuation to 10X and set the switch to 10X on the probe.

2. Trigger set up：

(1) Press “TRIG MENU” button to show the “Trigger Menu”

(2) Under this menu, set the trigger type to “edge”, Edge type is “Rising”, source is “CH1”, trigger mode is “Single”, coupling is “DC”

(3) Adjust the horizontal time base and vertical scale to the satisfied range

(4) Turn the “LEVEL” knob to adjust the trigger level

(5) Press the “RUN/STOP” button to start capturing

When the trigger conditions are satisfied, data appears on the display representing; the data points that the oscilloscope obtained with one acquisition and press the RUN/STOP button again rearms the trigger circuit and erases the display.

113

3.4 Analyze the signal detail

You have a noisy signal displayed on the oscilloscope and you need to know more about it. You suspect that the signal contains much more detail than you can now see in the display.

3.4.1 Looking at a Noisy Signal

The signal appears noisy and you suspect that noise is causing problems in your circuit. To analyze the noise better, follow these steps：

1）Press the “ACQUIRE” button to see the acquire menu.

2）Press the “Acquisition” option button or turn the “Universal” knob to select “Peak

Detect”.

3） If necessary, press the “DISPLAY” button to see “Display menu”. Turn the

“Universal” knob to adjust waveform intensity and grid brightness to see the noise more clearly.

4）. Peak detect emphasizes noise spikes and glitches in your signal, specially when the time base is set to a slow setting.

3.4.2 Separating the Signal from Noise

To reduce random noise in the oscilloscope display, follow these steps:

1）Press the “ACQUIRE” button to display the acquire menu.

2）Press the “Acquisition” option button or turn the “Universal” knob to select

“Average”.

3）Press the “Averages” option button to see the effects of varying the number of running averages on the waveform display.

Averaging reduces random noise and makes it easier to see the details of a signal.

114

3.5 Triggering on a Video Signal

Observe the video circuit in a piece of medical equipment and Use the video trigger to obtain a stable display.

3.5.1Triggering on Video Field

To trigger on the video fields, follow these steps:

1）. Press the “TRIGGER MENU” button to see “trigger menu”

2）.Press the top option button and select “Video”.

3）.Press the “source” option button and select “CH1”.

4）. Press the “Sync” option button and select “Odd Field” or “Even Field”.

5）. Press the “Standard” option button and select “NTSC”.

6）. Turn the horizontal “S/Div” knob to see a complete field across the screen.

7）. Turn the vertical “Volts/Div” knob to ensure that the entire video signal is visible on the screen.

3.5.2 Triggering on Video Lines

To trigger on the video lines, follow these steps:

1）.Press the “TRIGGER MENU” button to see the trigger menu

2）.Press the top “option” button and select “Video”.

3）. Press the “Sync” option button and select “Line Num” and turn the universal knob to set a specific line number.

4）.Press the “Standard” option button and select “NTSC”.

5）. Turn the “S/Div” knob to see a complete video line across the screen.

6）. Turn the “Volts/Div” knob to ensure that the entire video signal is visible on the screen.

115

3.6. Application of X-Y function

Viewing Impedance Changes in a Network

Connect the oscilloscope to monitor the input and output of the circuit

To view the input and output of the circuit in an XY display, follow these steps:

1）Press the “CH 1” MENU button and set the Probe option attenuation to 10X.

2) Press the “CH 2” MENU button and set the Probe option attenuation to 10X.

3). Set the switch of the probe to 10X.

4). Connect the channel 1 probe to the input of the network, and connect the channel

2 probe to the output.

5). Press the “AUTO” button.

6). Turn the “Volts/div” knobs to display approximately the same amplitude signals on each channel.

7). Press the “DISPLAY” button.

8). Press the Format option button and select “XY”.

The oscilloscope displays a Lissajous pattern representing the input and output characteristics of the circuit.

9).Turn the VOLTS/DIV and VERTICAL POSITION knobs to optimize the display.

10).Press the “Persist” option button and select “Infinite”.

11).Press the “Intensity” or “Brightness ” option buttons and turn the “Universal” knob to adjust the contrast of the screen.

12). Apply the Ellipse method to observe the phase difference between the two channels

116

D

The signal must be medical horizontal

A B

C

Picture 3-3

Sin θ=A/B or C/D where θ=phase shift (in degrees )between the two signals From the formula above ,you could get:

θ=±arcsine (A/B) or ±arcsine (C/D)

If the main axis of the ellipse is at and quadrant , θ must be in the range of (0～

π/2) or (3π/2～2π).if the main axis is at and quadrant, θ must be in the range of

(π/2～π) or (π～3π/2).

117

3.7 Analyzing a Differential Communication Signal

You are having intermittent problems with a serial data communication link, and you suspect poor signal quality. Set up the oscilloscope to show you a snapshot of the serial data stream so you can verify the signal levels and transition times.

Because this is a differential signal, you use the math function of the oscilloscope to view a better representation of the waveform.

To activate the differential signals connected to channel 1 and channel 2, follow these steps:

1) .Press the CH 1 button and set the Probe option attenuation to 10X.

2). Press the CH 2 button and set the Probe option attenuation to 10X.

3). Set the switches to 10X on the probes.

4). Press the AUTO button.

5). Press the “MATH” button to see the Math Menu.

6). Press the “Operation” option button and select “－”.

7). Press the “CH1－CH2” option button to display a new waveform that is the difference between the displayed waveforms.

8). You can adjust the vertical scale and position of the Math waveform. To do so, follow these steps: a. Remove the channel 1 and channel 2 waveforms from the display. b. Turn the CH 1 and CH 2 VOLTS/DIV and VERTICAL POSITION knobs to adjust the vertical scale and position.

NOTE. First be sure to compensate both probes. Differences in probe compensation appear as errors in the differential signal.

118

Chapter 4 prompting messages and troubleshooting

4.1 Prompting messages:

■

Trig level at limit! : Mention you that the trigger Level is at a limit when you turn the Trig level knob.

■

Horizon position at limit! : Mention you that the horizontal position is at a limit when you turn the horizon position knob.

■

Volts/Div at limit! : Mention you that the vertical voltage have already touched the

Min 2MV/div or the Max 5V/div.

■

Volts position at limit! : The system would display this information when the vertical position is at a limit.

■

Sec/Div at limit! : Prompts that the Volts/Div is at full range while turning the vertical scale knob.

■

Holdoff time at limit! : Turn the “Universal” knob when holdoff time has been to max or min value, now the system will clew this information.

■

Functions isn’t useable! : Under several special modes, the some functions could not be running.

■

No signal! : The system would clew this information when the signal could not match the auto set condition. (Using in the auto set)

■

Adjust at limit! : You could adjust the pulse width by the universal knob till the pulse width has reached min20.0ns or max 10.0s.

■

Location Empty! : If you have no stored waveforms or setups on some location, the screen will display this information when you press the “Recall” button on this location.

■

USB Flash Drive Plug In! : This information will appear when you invert the

119

USB Flash Drive to the USB Host port.

■

USB Flash Drive Pull Out! : This information will appear when you pull out the

USB Flash Drive.

■

Store Data Success! : Save setup data, waveform data or picture data to the internal of the oscilloscope or USB flash successful.

■

Ready Data Success! : Read setup data or waveform data from the internal of the oscilloscope or USB flash successful.

■

Please set Back USB to printer! : Press the “S/div” knob will appear this information on the screen when the “Print Key” option is set to “Print Picture” and the “Back USB” option is set to “Computer”.

■

USB Flash Drive isn’t connected! : When the “Save To” option is set to “File” or the “Print Key” option is set to “Save Picture” in “Save/Recall” menu , Press the

“Save” option button or the “S/div” knob before inverting the USB Flash Drive to the USB Host port will appear this information on the screen.

■

Record Wave Success! ：This message will appear when you finish recording waveforms.

120

4.2 Troubleshooting

1. After the oscilloscope is powered on，the screen remains dark ，please do as

following steps：

⑴ Check the power cable’s connection.

⑵ Ensure the power switch is turned on.

⑶

Af ter the inspections above，restart the oscilloscope.

⑷

If the oscilloscope is still not used after the checking, please connect with MY company

2. If there is no signal wave in the screen after gathering the signal, please do as following steps:

(1) Check the probe connecting with the signal cable or not

(2) Check the signal cable connecting with the BNC connector or not.

(3) Check the probe whether connect with the goods tested or not.

(4) Check the tested goods produce the signal or not.

(5) Gather the signal again.

3. The value of the tested voltage is 10 times higher/lower than the real one , please do as following steps:

Check the attenuation quotient whether match the probe attenuation proportion or not.

4.Display the wave, but not steady , please do as following steps:

(1) Check the signal source on the trigger interface whether or not matches the signal channel.

(2) Check the trigger mode: normal signal should use the “edge” trigger mode. The video signal should use the “Video” Trigger mode. The signal would display steady, only using the matching trigger mode.

(3) Attempt to change the “ coupling” into “HF Reject” or “LF Reject” display, so that the High/low frequency noise disturb the trigger should be filtrated

5. Press “RUN/STOP” button, but no display.

121

Check the trigger mode on the trigger interface whether or not in the “normal” or

“single”, and check the trigger level is whether or not over the wave range. If yes, please put the trigger level to the middle position or set the trigger mode to the

“Auto” position. In another hand, you could choose the “Auto” button to set up automatically.

6. After the Acquisition is set to Averages or Display Persistence time is set too long, the waveform refreshes slowly.

It is normal in these settings

7. The signal is displayed as ladder like waveform

(1)This phenomenon is normal. The time base maybe is too slow .you should turn the horizontal SCALE knob to increase horizontal resolution to improve the display.

(2) Maybe the display Type is set to “Vectors”, You could set it to Dots mode to improve the display.

122

Chapter 5 Service and Support

5.1 Maintain summary

Troniq warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of two (2) years from the date of shipment from an authorized Troniq distributor.

If a product or CRT proves defective within the respective period, Troniq will provide repair or replacement as described in the complete warranty statement.

To arrange for service or obtain a copy of the complete warranty statement, please contact your nearest Troniq’s sales and service office.

Except as provided in this summary or the applicable warranty Statement,

Troniq makes no warranty of any kind, express or implied, including without limitation the implied warranties of merchantability and fitness for a particular purpose. In no Event shall Troniq be liable for indirect, special or Consequential damages

1 2 3

Appendix A: Specifications

All specification applies to 10X probe and All the Digital Storage

Oscilloscopes.

To verify that the oscilloscope meets specifications, the oscilloscope must first meet the following conditions:

●

The oscilloscope must have been operating continuously for thirty minutes within the specified operating temperature.

●

You must perform the Do Self Cal operation, accessible through the Utility menu, if the operating temperature changes by more than 5° C.

●

The oscilloscope must be within the factory calibration interval

All specifications are guaranteed unless noted “typical.”

Specifications

Inputs

Input Coupling

Input Impedance

Maximum input voltage 400V （DC+AC PK-PK，1MΩ input impedance），CAT I,CAT

II

Probe attenuator

Probe attenuator Factors

Set

AC, DC, GND

1MΩ+/-2% || 17F±3Pf

1X、10X

1X、10X、100X、1000X

Vertical System

Vertical Sensitivity 2mV/div - 5V/div(1-2-5 order)

Channel voltage offset range Series:2mV–100mV:±2V

102mV - 5V:±40V

1 2 4

Vertical Resolution

C h a n n e l

Analog

s

Bandwidth

Single-shot

Bandwidth

Lower frequency limit (AC -3dB)

DC Gain Accuracy

DC Measurement Accuracy:

All Gain settings≤100mv/div

DC Measurement Accuracy:

All Gain settings＞100mv/div

Rise time

206mV-10V: ±40V

8 bit

2

25MHz / 100 MHz

25MHz / 100 MHz

≤10Hz(at input BNC)

≤±

3.0%: 5mv/div to 10V/div in Fixed Gain Ranges

≤±

4.0%:typical for 2mv/div and Variable Gain Ranges

±

[3%X（|reading|+|offset|）+1% of |offset| +0.2div+2mv]

±

[3%X（|reading|+|offset|）+1% of |offset| +0.2div+100mv]

<14ns bandwidth at 25MHZ

<3.5ns bandwidth at 100MHZ

Vertical input coupling

Math operation

FFT

Bandwidth limiter

AC, DC, GND

+, -, *, FFT

Window mode: Hanning, Hamming, Blackman, Rectangular

Sampling points: 1024

20MHZ±40% Typical

(Note: 25MHZ bandwidth oscilloscope don’t have this function,BW limited below 20MHZ±40% when using probe

X1)

Horizontal System

Real Time Sampling Rate

4Kpts memory depth Series ：

Single Channel:500MSa/s,Double Channel: 250MSa/s( When timebase faster than 250ns/div)

Equivalent Sampling Rate 50GSa/S(25MHz bandwidth:10GSa/S)

Measure Display Modes

Timebase Accuracy

Horizontal Scan Range

MAIN, WINDOW, WINDOW ZOOM, SCAN , X-Y

±

100ppm measured over 1ms interval

2.5nS/DIV - 50S/DIV

SCAN: 100mS/DIV ～50S/DIV (1-2.5-5 sequence)

1 2 5

Measure System

Auto Measure

(32 Types)

Vpp, Vmax, Vmin, Vamp, Vtop, Vbase, Vavg, Mean,Crms,

Vrms, ROVShoot, FOVShoot, RPREShoot, FPREShoot, Rise time, Fall time, Freq, Period,+ Wid,－Wid, ＋Dut, －Dut,

BWid, Phase, FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF

Manual mode, Track mode and Auto mode Cursor Measure

Trigger System

Trigger Types

Trigger Source

Trigger Modes

Trigger Coupling

Trigger Level Range

Trigger Displacement

Holdoff range

Edge Trigger

Pulse Width Trigger

Video Trigger

Slope Trigger

Alternative Trigger

Edge, Pulse Width, Video, Slope, Alternative

CH1、CH2、EXT、EXT/5、AC Line

Auto, normal, Single

AC, DC, LF rej, HF rej

CH1,CH2: ±6divisions from center of screen

EXT: ±1.2V

EXT/5: ±6V

Pre-trigger：（Memory depth/（2*sampling））,

Delay Trigger: 260DIV

100ns – 1.5s

Edge type: Rising, Falling, Rising and Falling

Trigger Modes: (＞,＜, ＝)positive Pulse Width, (＞,

＜

, ＝)Negative Pulse Width

Pulse Width Range: 20ns – 10s

Support signal Formats: PAL/SECAM, NTSC

Trigger condition : odd field, even field, all lines, line

Num

(＞,＜, ＝) Positive slope, (＞,＜, ＝) Negative slope

Time: 20ns-10s

CH1 trigger type: Edge, Pulse, Video, Slope

CH2 trigger type: Edge, Pulse, Video, Slope

Hard Ware Frequency Counter

Reading resolution 6 Bytes

Range

Signal Types

DC Couple, 10Hz to MAX Bandwidth

Satisfying all Trigger signals(Except Pulse width trigger and Video Trigger)

X-Y Mode

X-pole Input / Y-Pole Input Channel 1 (CH1) / Channel 2 (CH2)

Phase Error

Sample Frequency

±3 degrees

XY mode has a breakthrough that trad oscilloscopes restrict sampling rate at 1MSa/s and 4Kpts memory depth Series supports 5KSa/s～200MSa/;

32K/40K/2Mpts memory depth Series supports

25KSa/s～100MSa/s

2GSa/S real-time series supports：10KSa/s～1GSa/S

126

Control Panel Function

Auto Set

Save/Recall

Auto adjusting the Vertical, Horizontal system and

Trigger Position

Support 2 /4Group referenced Waveforms,20 Group setups,20 Group captured Waveforms internal

Storage/Recall function and USB flash driver storage function.

Acquisition System

Sample Types Real time, Equivalent time

Peak Detect Captures glitches down to 10ns wide regardless of sample rate

Sample Mode

Sample，Peak Measure, Average

Averages 4,16,32,64,128,256

Generic Specification

Display System

Display Mode

Resolution

Display Color

Color TFT 5.7in.(145mm)diagonal Liquid Crystal Display

Color TFT 7in.(178mm)diagonal Liquid Crystal Display

320 horizontal by 234 vertical pixels

480 horizontal by 234 vertical pixels

64K color

（

Typical state）

Backlight Intensity

（

Typical state）

300nit

Wave display range

Wave Display Mode

Persist

Menu Display

8 x 12 div & 8 x 18 div

Point, Vector

Off, 1 sec, 2 sec, 5 sec, Infinite

2 sec, 5 sec, 10 sec, 20 sec, Infinite

Screen-Saver Off,1min,2min,5min,10min,15min,30min,1hour,2hour,5hour

Skin Classical, Modern, Tradition, Succinct waveform interpolation Sin(x)/x, Linear

Color model

Language

Normal , Invert

Simplified Chinese, Traditional Chinese, English, Arabic,

French, German, Russian, Spanish, Portuguese

Japanese, Korean, Italian

Environments

Temperature

Humidity

Operating:10 to + 40℃

Not operating: -20 to + 60℃

Operating: 85%RH, 40℃, 24 hours

Not operating: 85%RH, 65℃, 24 hours

Not operating: 15,266m

Power Supply

Input Voltage

Frequency Scope

100-240 VAC, CAT II, Auto selection

45Hz to 440Hz

127

Generic Specification

Display System

Display Mode Color TFT 5.7in.(145mm)diagonal Liquid Crystal Display

Resolution 320 horizontal by 234 vertical pixels

Display Color

Display Contrast

（

Typical state）

Backlight Intensity

（

Typical state）

Wave display range

Wave Display Mode

64K color

150:1

300nit

Persist

Menu Display

Screen-Saver

Skin waveform interpolation Sin(x)/x, Linear

Color model

Language

8 x 12 div & 8 x 18 div

Point, Vector

Off, 1 sec, 2 sec, 5 sec, Infinite

2 sec, 5 sec, 10 sec, 20 sec, Infinite

Off,1min,2min,5min,10min,15min,30min,1hour,2hour,5hour

Classical, Modern, Tradition, Succinct

Normal , Invert

Simplified Chinese, Traditional Chinese, English, Arabic,

French, German, Russian, Spanish, Portuguese

Japanese, Korean, Italian

Environments

Temperature

Cooling

Humidity

Height

Operating:10 to + 40℃

Not operating: -20 to + 60℃

Forced air (silent fan)

Operating: 85%RH, 40℃, 24 hours

Not operating: 85%RH, 65℃, 24 hours

Operating: 3000m

Not operating: 15,266m

Power Supply

Input Voltage

Frequency Scope

Power

Mechanical

Dimension

W e i g h t length

Width

Height

2 .

3 k g

100-240 VAC, CAT II, Auto selection

45Hz to 440Hz

50VA Max

305mm

133mm

154mm

2 .

4 k g

339mm

110.5mm

148.5mm

1 2 8

Appendix B: Default setup

CH1 CH2

MATH

HORIZONTAL

CURSOR

MEASURE

ACQUIRE

buttons

Coupling DC

BW limit Off

Volts/div Coarse

Probe 1X

Invert Off

Filter Off

Volts/div 1.00V

Operation CH1+CH2

CH1 invert Off

CH2 invert

FFT operation:

Source

Window

FFT Zoom

Scale

Display

Off

CH1

Hanning

1X dBVrms

Split

Window Main

Position 0.00μs

Sec/div 500μs

Window Zone 50.0μs

Trigger knob level

Type Off

Source CH1

Horizontal (voltage) +/-3.2divs

Vertical (time) +/-5divs

Source CH1

Type average three mode options Sampling

Averages 16

Sampling mode Real Time

DISPLAY Type Vectors

Persist off

Gird

Intensity

60%

Brightness

40%

129

SAVE/RECALL

REF

UTILITY

TRIGGER

(pulse)

TRIGGER

(Video)

TRIGGER (edge)

Format YT

Menu Display infinite

Type Setups

Save To Device

Setup No.1

REFA/REFB REFA

Source CH1

REFA off

REFB off

Sound on

Counter On

Back USB Computer

Pass/Fail off

Record off

RS-232 Baud 9600

Type edge

Source CH1

Slope Rising

Mode Auto

Coupling DC

LEVEL 0.00V

Type pulse

Source CH1

When =

Set Pulse Width 1.00ms

Mode Auto

Coupling DC

Type Video

Source CH1

Polarity Normal

TRIGGER

(Slope)

TRIGGER

(Alternative)

Standard NTSC

Mode Auto

Type Slope

Source CH1

Time 1.00ms

Mode Auto

Type Alternative

Source CH1

Mode Edge

Coupling DC

130

Appendix C: Daily Maintain and Cleaning

Daily Maintain

DO not store or leave the instrument in where the LCD display will be exposed to direct sunlight for long periods of time.

CAUTION: To avoid damage to the instrument or probes, do not expose them to sprays, liquids, or solvents

Cleaning

If this instrument requires cleaning, disconnect it from all power sources and clean it with a mild detergent and water. Make sure the instrument is completely dry before reconnecting it to a power source.

To clean the exterior surface, perform the following steps:

1). Remove loose dust on the outside of the instrument and probes with a lint-free cloth. Use care to avoid scratching the clear plastic display filter.

2).

Use a soft cloth dampened with water to clean the instrument. Use an aqueous solution of 75% isopropyl alcohol for more efficient cleaning.

Note：

To avoid damage to the surface of the instrument or probes, do not use any abrasive or chemical cleaning agents.

131

Index

- Width

+ Width

Acquiring Signals system

Application of X-Y function auto setup

Base time

75

75

57

107

15

60

Probe component

Probe Safety

14

7

59

Ref 35

SAVE/RECALL 79

83, 87

Scale Measurement 67

95

Cursor Measurement

Cursor Moving

67

68

Signal Source 42

DEFAULT SETUP

Display sweep mode

12, 17

38

Storage System

Sync 47

Equivalent Time Sampling： 59

78

68

EXT TRIG 14 TRIG MENU 41

Fine Resolution： 20

FORCE 41

18

Grid 63

HORI MENU 37

Vertical System

Horizontal System 37

87

19

Vmax 74

Invert 20

LEVEL 41

MEASURE 72

Peak Detect 58

68

Vpp 74

Persist 62

Polarity 47

20

Position 54

X-Y Format

39

65

Probe Attenuation Setting

Probe Compensation

9

8

YT 63

Function checking 7

132

Troniq DSO 25, DSO 100 Digital Storage Oscilloscope User Manual

Assistant Bot

User Manual

Declaration

Copyright © Eleshop. All rights reserved.

Contents in this Manual are not allowed to copy, extract and translate before being allowed by Eleshop.

Digital Storage Oscilloscope Brief Introduction

Model:

DSO25 500MSa/s real-time sampling rate, 25 MHz analog frequency

DSO100 500MSa/s real-time sampling rate, 100 MHz analog frequency

Characteristic:

● The volume of the oscilloscope is cabinet and it is portable

● Color TFT LCD display

● 2 channels Bandwidth:25MHz / 100MHz

● Single real-time sampling rate are 500MSa/s. Equivalent sampling rate is 50GSa/s.

●Memory depth are 4Kpts (500MSa/s real-time sampling rate)

● Edge, Pulse, Video，Slope，and Alternative trigger function.

● Unique Digital Filter function and Waveform recorder function

● Pass/Fail function.

● Auto measure thirty two parameters support all measurement function.

● Two groups’ reference waveforms and twenty groups’ capture waveforms and twenty groups’ setups internal save/recall function and USB flash drive save/recall function.

● Cursor measure covers Manual mode, Track mode and Auto mode.

● Channel waveform and its FFT waveform display on split screen.

●Waveform Intensity and Grid Brightness can be adjusted.

● Menu display in the form of pop-up that in order to convenience users to use it.

●Rich Screen display styles: Classical, Modern, Tradition, Succinct.

● Multiple Language User Interface.

● Support Multilingual help system online

●Standard setup interface: USB Host: Support USB flash drive storage/recall

General Safety Summary

Preface

Catalogue

Chapter 1 Accidence

1.1 Accidence of the front panel and user interface

1.1.1 Front Panel

1.1.2 Back and Side Connections

1.2 Function checking

1.3

Probe

1.3.1 Probe Safety

1.3.2 Probe Attenuation Setting

1.3.3 Probe Compensation

Chapter 2 Functions Instruction and Operation

2.1 Menu and control button

All models:

2.2 Connector

2.3 Auto setup

2.4 Default setup

2.5 Universal knob

2.6 Vertical System

2.6.1 CH1 & CH2 Channel

Setting up the CH1、CH2 Channels

2.6.2 The Using of the Vertical “Position” knob and “Volt/div” knob in the vertical system

2.6.3 Math Functions

1. FFT Spectrum Analyzer

2. Displaying the FFT Spectrum

3. Select FFT window

4. Magnifying and Positioning an FFT Spectrum

5. Measuring an FFT Spectrum Using Cursors

2.6.4 Using Ref

2.7 Horizontal System

If Set memory depth to normal mode, the memory depth is 40Kpts

If Set memory depth to LongMem mode, the memory depth is 2Mpts

2.7.1 Horizontal control knob

2.7.2 Window Zone

2.8 Trigger System

2.8.1 Signal Source

2.8.2 Trigger Type

2.8.3 Coupling

2.8.4 Position

2.8.5 Slope & Level

2.8.6 Trigger Holdoff

2.9 Acquiring Signals system

2.10 Display System

2.10.1 X-Y Format

2.11 Measure System

2.11.1 Scale Measurement

2.11.2 Cursor Measurement

Manual Mode

Track mode