Digital Storage Oscilloscope · 2015. 9. 17. · may damage the oscilloscope. • Avoid discharges of static electricity on or near the oscilloscope. • Use only mating connectors,

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Digital Storage Oscilloscope

DSO 4022 / 4042 / 4062 / 4102

Bestell Nr. 122460/122461/122462/122463

TABLE OF CONTENTS

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Table of ContentsSAFETY INSTRUCTION ................................. 6

Safety Symbols ....................................................................6Safety Guidelines.................................................................7Power cord for the United Kingdom ....................................9

GETTING STARTED..................................... 10Main Features ................................................................. 10Panel Overview ............................................................... 11

Front Panel........................................................................11Rear Panel .........................................................................14Display..............................................................................15

Setting up the Oscilloscope ............................................. 16

QUICK REFERENCE .................................... 18Menu Tree and Shortcuts................................................. 18

Acquire key........................................................................18Autoset key........................................................................19CH1/2 key .........................................................................19Cursor key 1/2...................................................................19Cursor key 2/2...................................................................20Display key ........................................................................20Hardcopy key ....................................................................21Help key............................................................................21Horizontal menu key.........................................................21Math key 1/2 .....................................................................22Math key 2/2 .....................................................................22Measure key......................................................................23Run/Stop key.....................................................................23Save/Recall key 1/9 ...........................................................24Save/Recall key 2/9 ...........................................................24Save/Recall key 3/9 ...........................................................25Save/Recall key 4/9 ...........................................................25Save/Recall key 5/9 ...........................................................26Save/Recall key 6/9 ...........................................................26Save/Recall key 7/9 ...........................................................27Save/Recall key 8/9 ...........................................................27Save/Recall key 9/9 ...........................................................28Trigger key 1/4 ..................................................................28

TABLE OF CONTENTS

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Trigger key 2/4.................................................................. 29Trigger key 3/4.................................................................. 29Trigger key 4/4.................................................................. 30Utility key 1/4.................................................................... 30Utility key 2/4.................................................................... 31Utility key 3/4.................................................................... 31Utility key 4/4.................................................................... 31

Default Settings .............................................................. 32Built-in Help ................................................................... 33

MEASUREMENT ......................................... 34Basic Measurements ....................................................... 34

Activating a channel.......................................................... 34Using the Autoset ............................................................. 35Running and stopping the trigger...................................... 36Changing the horizontal position and scale....................... 37Changing the vertical position and scale ........................... 38Using the probe compensation signal............................... 39

Automatic Measurements................................................ 41Measurement items.......................................................... 41Automatically measuring the input signals........................ 43

Cursor Measurements ..................................................... 44Using the horizontal cursors............................................. 44Using the vertical cursors.................................................. 45

Math Operations............................................................. 46Overview........................................................................... 46Adding or subtracting signals............................................ 47Using the FFT function ..................................................... 48

CONFIGURATION ....................................... 49Acquisition ..................................................................... 49

Selecting the acquisition mode ......................................... 49Real time vs Equivalent time sampling mode.................... 51

Display ........................................................................... 52Selecting the vector or dot drawing ................................... 52Accumulating the waveform.............................................. 52Adjusting the display contrast ........................................... 53Selecting the display grid .................................................. 53

Horizontal View .............................................................. 54Moving the waveform position horizontally....................... 54Selecting the horizontal scale............................................ 54Selecting the waveform update mode................................ 55

TABLE OF CONTENTS

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Zooming the waveform horizontally ..................................56Viewing waveforms in the X-Y mode..................................57

Vertical View (Channel) ................................................... 58Moving the waveform position vertically............................58Selecting the vertical scale.................................................58Selecting the coupling mode .............................................58Inverting the waveform vertically .......................................59Limiting the waveform bandwidth .....................................59Selecting the probe attenuation level.................................60

Trigger ............................................................................ 61Trigger type .......................................................................61Trigger parameter..............................................................61Configuring the edge trigger..............................................63Configuring the video trigger.............................................65Configuring the pulse width trigger ...................................66Manually triggering the signal ...........................................68

Remote Control Interface................................................. 69System Settings .............................................................. 70

Viewing the system information ........................................70Selecting the language.......................................................70

SAVE/RECALL ............................................. 71File Structures ................................................................ 71

Display image file format...................................................71Waveform file format.........................................................71Setup file format................................................................73Using the SD card file utilities ...........................................74

Quick Save (HardCopy) ................................................... 76Save ............................................................................... 78

File type/source/destination..............................................78Saving the panel settings...................................................79Saving the waveform.........................................................80Saving the display image...................................................81Saving all (panel settings, display image, waveform).........82

Recall ............................................................................. 84File type/source/destination..............................................84Recalling the default panel settings ...................................84Recalling a reference waveform to the display....................86Recalling panel settings.....................................................87Recalling a waveform.........................................................88

TABLE OF CONTENTS

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MAINTENANCE .......................................... 90Vertical Resolution Calibration......................................... 90Probe Compensation ....................................................... 91

FAQ ........................................................... 93The input signal does not appear in the display................. 93I want to remove some contents from the display. ............ 93The waveform does not update (frozen)............................ 93The probe waveform is distorted....................................... 94Autoset does not catch the signal well............................... 94I want to clean up the cluttered panel settings. ................. 94The saved display image is too dark on the background.... 94The accuracy does not match the specifications................ 94The SD card slot does not accept my card......................... 94

APPENDIX .................................................. 95Fuse Replacement ........................................................... 95DSO-4000 Series Specifications ....................................... 96

Model-specific specifications ............................................ 96Common specifications .................................................... 97

Probe Specifications........................................................ 99DSO-4022/4042 Probe ...................................................... 99DSO-4062/4102 Probe ...................................................... 99

Declaration of Conformity ............................................. 100

INDEX...................................................... 101

DSO-4000 User Manual

6

SAFETY INSTRUCTIONThis chapter contains important safety instructionsthat should be followed when operating andstoring the oscilloscope. Read the following beforeany operation to ensure your safety and to keepbest condition for the oscilloscope.

Safety Symbols

These safety symbols may appear in this manual or on theoscilloscope.

WARNINGWarning: Identifies conditions or practices thatcould result in injury or loss of life.

CAUTIONCaution: Identifies conditions or practices thatcould result in damage to the oscilloscope or toother objects or property.

DANGER High Voltage

Attention: Refer to the Manual

Protective Conductor Terminal

Earth (Ground) Terminal

7

Safety Guidelines

GeneralGuideline

CAUTION

• Make sure the BNC input voltage does notexceed 300V peak.

• Never connect a hazardous live voltage to theground side of the BNC connectors. It mightlead to fire and electric shock.

• Do not place heavy objects on the oscilloscope.• Avoid severe impacts or rough handling that

may damage the oscilloscope.• Avoid discharges of static electricity on or near

the oscilloscope.• Use only mating connectors, not bare wires, for

the terminals.• Do not block the cooling fan opening.• Do not perform measurement at power source

and building installation site (Note below).• The oscilloscope should only be disassembled

by a qualified technician.(Measurement categories) EN 61010-1:2001 specifies themeasurement categories and their requirements as follows. TheDSO-4000 falls under category II.

• Measurement category IV is for measurement performed at thesource of low-voltage installation.

• Measurement category III is for measurement performed in thebuilding installation.

• Measurement category II is for measurement performed on thecircuits directly connected to the low voltage installation.

• Measurement category I is for measurements performed oncircuits not directly connected to Mains.

Power Supply

WARNING

• AC Input voltage: 100 ~ 240V AC, 47 ~ 63Hz• The power supply voltage should not fluctuate

more than 10%.• Connect the protective grounding conductor of

the AC power cord to an earth ground.


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Fuse

WARNING

• Fuse type: T1A/250V• To ensure fire protection, replace the fuse only

with the specified type and rating.• Disconnect the power cord before replacing the

fuse.• Make sure the cause of fuse blowout is fixed

before replacing the fuse.

Cleaning theoscilloscope

• Disconnect the power cord before cleaning theoscilloscope.

• Use a soft cloth dampened in a solution of milddetergent and water. Do not spray any liquidinto the oscilloscope.

• Do not use chemical containing harsh productssuch as benzene, toluene, xylene, and acetone.

OperationEnvironment

• Location: Indoor, no direct sunlight, dust free,almost non-conductive pollution (Note below)

• Relative Humidity: < 80%• Altitude: < 2000m• Temperature: 0°C to 50°C(Pollution Degree) EN 61010-1:2001 specifies the pollution degreesand their requirements as follows. the oscilloscope falls underdegree 2.

Pollution refers to “addition of foreign matter, solid, liquid, orgaseous (ionized gases), that may produce a reduction of dielectricstrength or surface resistivity”.

• Pollution degree 1: No pollution or only dry, non-conductivepollution occurs. The pollution has no influence.

• Pollution degree 2: Normally only non-conductive pollutionoccurs. Occasionally, however, a temporary conductivity causedby condensation must be expected.

• Pollution degree 3: Conductive pollution occurs, or dry, non-conductive pollution occurs which becomes conductive due tocondensation which is expected. In such conditions, equipmentis normally protected against exposure to direct sunlight,precipitation, and full wind pressure, but neither temperaturenor humidity is controlled.

9

Storageenvironment

• Location: Indoor• Relative Humidity: < 85%• Temperature: 0°C to 50°C

Power cord for the United Kingdom

When using the oscilloscope in the United Kingdom, make sure thepower cord meets the following safety instructions.

NOTE: This lead/appliance must only be wired by competent persons

WARNING: THIS APPLIANCE MUST BE EARTHEDIMPORTANT: The wires in this lead are coloured in accordance with thefollowing code:Green/ Yellow: EarthBlue: NeutralBrown: Live (Phase)As the colours of the wires in main leads may not correspond with thecolours marking identified in your plug/appliance, proceed as follows:The wire which is coloured Green & Yellow must be connected to the Earthterminal marked with the letter E or by the earth symbol or coloured Greenor Green & Yellow.The wire which is coloured Blue must be connected to the terminal which ismarked with the letter N or coloured Blue or Black.The wire which is coloured Brown must be connected to the terminal markedwith the letter L or P or coloured Brown or Red.If in doubt, consult the instructions provided with the equipment or contactthe supplier.This cable/appliance should be protected by a suitably rated and approvedHBC mains fuse: refer to the rating information on the equipment and/oruser instructions for details. As a guide, cable of 0.75mm2 should beprotected by a 3A or 5A fuse. Larger conductors would normally require 13Atypes, depending on the connection method used.Any moulded mains connector that requires removal /replacement must bedestroyed by removal of any fuse & fuse carrier and disposed of immediately,as a plug with bared wires is hazardous if a engaged in live socket. Any re-wiring must be carried out in accordance with the information detailed onthis label.


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GETTING STARTEDThe Getting started chapter introduces theoscilloscope’s main features, appearance, and setup procedure.

Main Features

Model name Frequency bandwidth Input channels

DSO-4022 DC – 25MHz (–3dB) 2

DSO-4042 DC – 40MHz (–3dB) 2

DSO-4062 DC – 60MHz (–3dB) 2

DSO-4102 DC – 100MHz (–3dB) 2

Performance • 250MSa/S real-time sampling rate• 25GS/s equivalent-time sampling rate• Up to 10ns peak detection

Feature • 5.6 inch color TFT display• Saving and recalling setups and waveforms• 19 automatic measurements• Multi-language menu• Math operation: Add, Subtract, FFT• Edge, video, pulse width trigger• Compact size: (W) 310 x (D) 140 x (H) 142 mm

Interface • SD card connector for saving and recalling data• Calibration output• External trigger input

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Panel Overview

Front Panel

LCD display TFT color, 320 x 234 resolution, wide angle viewLCD display.

Function keys:F1 (top) toF5 (bottom)

Activates the functions whichappear in the left side of the LCDdisplay.

Variable knob VARIABLE Increases or decreases value andmoves to the next or previousparameter.

Acquire key Acquire Configures the acquisition mode(page49).

Display key Display Configures the display settings(page52).

Cursor key Cursor Runs cursor measurements(page44).

(Continued on next page)


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Utility key Utility Configures the Hardcopy function(page76), shows the system status(page68), selects the menulanguage (page70), runs the selfcalibration (page90), and configuresthe probe compensationsignal(page91).

Help key Help Shows the Help contents on thedisplay (page33).

Autoset key Autoset Automatically configures thehorizontal, vertical, and triggersettings according to the inputsignal (page35).

Measure key Measure Configures and runs automaticmeasurements (page41).

Save/Recall key Save/Recall Saves and recalls image, waveform,or panel settings (page71).

Hardcopy key Hardcopy Copies image, waveform, or panelsettings to an SD card (page76).

Run/Stop key Run/Stop Runs or stops triggering (page36).

Trigger level knobLEVE LTRIGGER Sets the trigger level (page61).

Trigger menu key MENU Configures the trigger settings(page61).

Single trigger key SINGLE Selects the single trigger mode(page68).

Trigger force key FORCE Acquires the input signal onceregardless of the trigger conditionat the time (page68).

Horizontal menukey

MENU Configures the horizontal view(page54).

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Horizontalposition knob

Moves the waveform horizontally(page54).

TIME/DIV knob TIME/DIV Selects the horizontal scale(page54).

Vertical positionknob

Moves the waveform vertically(page58).

CH1/CH2 key CH 1 Configures the vertical scale andcoupling mode for each channel(page58).

VOLTS/DIV knob VOLTS/DIV Selects the vertical scale (page58).

Input terminal CH1 Accepts input signals: 1M ±2%input impedance, BNC terminal.

Ground terminal Accepts the DUT ground lead toachieve a common ground.

MATH key MATH Performs math operations (page46).

SD cardconnector

Facilitates transferring waveformdata, display image, and panelsettings (page71).

Probecompensationoutput

Outputs a 2Vp-p, square signal forcompensating the probe (page91)or demonstration.

External triggerinput

EXT TRIG Accepts an external trigger signal(page61).

Power switch Powers the oscilloscope on or off.


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Rear Panel

LI NE VOLTAGE AC 100 240V

FUSE RATI NG

RANGE

T1A 250V

FREQUENCY 50 60Hz

POWER MAX. 18W 40VA

Power cordsocket

Fuse socket

Power cord socket accepts the ACmains, 100 ~ 240V, 50/60Hz.Fuse socket holds the AC mainfuse, T1A/250V.For fuse replacement procedure,see page95.

USB slave port Accepts a type B (slave) male USBconnector for remote controllingthe oscilloscope (page69).

Calibrationoutput

Outputs the calibration signal usedin vertical scale accuracy calibration(page90).

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DisplayWaveform marker

Vertical status Horizontal status Frequency Trigger condition

Waveform position Trigger status Acquisition

Menu

Waveforms Channel 1: Yellow Channel 2: Blue

Trigger status Trig’d A signal is being triggered

Trig? Waiting for a trigger condition

Auto Updating the input signalregardless of trigger conditions

STOP Triggering is stopped

For trigger setting details, see page61.

Updates the input signal frequency (the triggersource signal) in real-time.

Input signalfrequency

“< 20Hz” Indicates that the signal frequency is lessthan the lower frequency limit (20Hz) and thus notaccurate.

Triggerconfiguration

Shows the trigger source, type, and slope. In caseof the Video trigger, shows the trigger source andpolarity.

Horizontal status

Vertical status

Shows the channel configurations: coupling mode,vertical scale, and horizontal scale.


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Setting up the Oscilloscope

Background This section describes how to set up theoscilloscope properly including connecting asignal, adjusting the scale, and compensating theprobe. Before operating the oscilloscope in a newenvironment, run these steps to make sure theoscilloscope is functionally stable.

Procedure 1. Connect the power cord.

2. Press the power switch. Thedisplay will become activein approximately 10seconds.

3. Reset the system by recallingthe factory settings. Pressthe Save/Recall key, thenDefault Setup. For details offactory settings, see page32.

DefaultSetup

Save/Recall

4. Connect the probe between the Channel1 inputterminal and probe compensation signal output(2Vp-p, 1kHz square wave).

5. Set the probe attenuation to x10.

CH1

x1

x10

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6. Press the Autoset key. Asquare waveform willappear in the center of thedisplay. For details of theAutoset, see page35.

Autoset

7. Press the Display key, thenType and select the vectorwaveform.

8. Turn the adjustment point on the probe toflatten the square waveform edge.

OverCompensation Normal

UnderCompensation

9. Setting up the oscilloscope is completed. Youmay continue with the other operations.

Measurements: page34 Configurations: page49


18

QUICK REFERENCEThis chapter lists the oscilloscope menu tree,operation shortcuts, built-in help coverage, anddefault factory settings. Use this chapter as ahandy reference to access the oscilloscopefunctionalities.

Menu Tree and Shortcuts

Normal = Press the functional key for “Normal”

Average = Repeatedly press the functional key for“Average”

Normal ~ Average = Select a menu from “Normal” to “Average” andpress its functionality key

Normal VAR = Press the functionality key for “Normal”, andthen use the Variable knob

Acquire key

Select acquisition mode

Normal ~ Peak-Detect

Select average number

AverageNormal

Peak

Detect

2/ 4/ 8/ 16/ 32/64/ 128/ 256

Average

Sample Rate

Acquire

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Autoset key

Autoset Automatically find signaland set scale

Autoset

CH1/2 key

Turn channel on/off

CH 1/2

Select coupling mode

Coupling

Invert waveform

Invert

Turn bandwidth limit on/off

BW Limit

Select probe attenuation factor

Probe

Cursor key 1/2

Turn cursor on/offCursor

Move X1 cursorX1 VARMove X2 cursorX2 VAR

Move both X1 and X2 cursorX1X2 VAR

Switch to Y cursor

CH1/ 2/ MATHSource

CH1X1

123.4us

X222.9us

X1X2:23.6us

f :11.9Hz

Y

Cursor

X Y


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Cursor key 2/2

Turn cursor on/off

Cursor

Move Y1 cursor

Y1 VAR

Move Y2 cursor

Y2 VAR

Move both Y1 and Y2 cursor

Y1Y2 VAR

Switch to X cursor

X Y

Display key

Select waveform type

Type

Waveform accumulate On/Off

Accumulate

Refresh accumulation

Refresh

Set display contrast

Contrast VAR

Select display grid

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Hardcopy key

See Utility key (page30)

Help key

Turn help mode on/off

Help

Horizontal menu key

Select main (default) display

Main

Select window mode

Window TIME/DIV

Zoom in window mode

Window Zoom

Select window roll mode

Roll

Select XY mode

XY


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Math key 1/2

Math on/off

Math

Select math operation type (+/–)

Operation

Select addition/subtraction

CH1+/-CH2

Set result position

Position VAR

Math result Volt/Div

Unit/Div VAR

Math key 2/2

Math on/off

Math

Select math operation type (FFT)

Operation

Select FFT source channel

Source

Select FFT window

Window

Select FFT result position

Position VAR

Select vertical scale

Unit/Div

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Measure key

Turn on/off measurement Measure

Select measurement type Voltage/Time

Select measurement item VAR or Icon

Go back to previous menu Previous Menu

Run/Stop key

Freeze/unfreeze waveform or trigger

Run/Stop


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Save/Recall key 1/9

Switch to Save or Recall menu Save/Recall

Recall default setup Default Setup

Save/Recall key 2/9

Select other menu

Recall Setup

Select setup source

Source VAR

Recall setup

Recall

Go to SD card file utilities

RecallSetup

Recall

FileUtilities

(SD Card only)To File Utilities

Recall Setup

SourceMemory

Memory/SD Card

File Utilities

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Save/Recall key 3/9

Select other menu

Recall Waveform

Select waveform source

Source VAR

Select waveform destination

Destination VAR

Recall waveform

Recall


File Utilities

Save/Recall key 4/9

Select other menu

Display Refs.

Turn ref. waveform A on/off

Ref.A

Turn ref. waveform B on/off

Ref.B


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Save/Recall key 5/9

Select other menu

Save Setup

Select destination

Destination VAR

Save setup

Save


SaveSetup

DestinationMemory

Save

FileUtilities

Memory/SD Card

(SD Card only)To File Utilities

Save Setup

File Utilities

Save/Recall key 6/9

Select other menu

Save Waveform

Select source

Source VAR

Select destination

Destination VAR

Save waveform

Save


File Utilities

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Save/Recall key 7/9

Select other menu

Save Image

Turn on/off ink saver

Ink Saver

Save image

Save


File Utilities

Save/Recall key 8/9

Select other menu

Save All

Turn on/off ink saver

Ink Saver

Save all

Save


File Utilities


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Save/Recall key 9/9

Select file/folder

VAR Select

Create or rename folder/file

New Folder/Rename

VAR Enter character /Backspace / Save / Previous menu

Delete folder/file

Delete

Go to previous menu

Previous menu

Trigger key 1/4

Select video trigger type

Type

Select trigger source

Source

Select video standard

Standard

Select video polarity

Polarity

Select video field/line

TypeVideo

SourceCH1

StandardNTSC

NTSC/SECAM/PAL

Line

CH1/2

/

Field 1/ Field 2/ Line

Polarity

MENUVideo Trigger

Line VAR

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Trigger key 2/4

Select edge trigger type

Edge


Source

Go to slope/coupling menu(page30)

Slope/Coupling

Select trigger mode

TypeEdge

SourceCH1

ModeAuto

Slope /Coupling

CH1/2/Ext/Line

Auto/ Normal

To Slope/Coupling

MENUEdge Trigger

Mode

Trigger key 3/4

Select pulse trigger type

Type


Source

Select pulse trigger condition andpulse width

When VAR

Go to slope/coupling menu(page30)

Slope/Coupling

Select trigger mode

Mode


30

Trigger key 4/4

Select trigger slope type

Slope

Select trigger coupling mode

Coupling

Select frequency rejection

Rejection

Turn noise rejection on/off

Noise Rej

Go back to previous menu

Previous Menu

Utility key 1/4

Go to hardcopy menu

Hardcopy

Go to probe compensation menu

ProbeComp

Select language

Language

Show system information

System Info.

Go to self calibration menu

More

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Utility key 2/4

Enter self calibration

Self CAL

Go to previous menu

Previous Menu

Utility key 3/4

Select Hardcopy function

Function

Turn on/off inksaver

Ink Saver

Go to previous menu

FunctionSave All

SaveImage/SaveAll

PreviousMenu

On/ OffInk Saver

Off

Hardcopy

Previous Menu

Utility key 4/4

Select probe compensation signal

Wave Type

Set frequency for square wave

Frequency VAR

Set duty cycle for square wave

Duty Cycle VAR

Go to previous menu

Previous Menu


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Default Settings

Here are the factory installed panel settings whichappear when pressing the Save/Recall keyDefault Setup.

Acquisition Mode: Normal

Channel Scale: 2V/Div Invert: Off

Coupling: DC Probe attenuation: x1

BW limit: Off(DSO-4102, DSO-4062)

Channel 1 & 2: On

Cursor Source: CH1 Cursor: Off

Display Type: Vectors Accumulate: Off

Grid:

Horizontal Scale: 2.5us/Div Mode: Main Timebase

Math Type: + (Add) Position: 0.00 Div

Measure Item: Vpp, Vavg, Frequency, Duty Cycle, RiseTime

Trigger Type: Edge Source: Channel1

Mode: Auto Slope:

Coupling: DC Rejection: Off

Noise Rejection: Off

Utility Hardcopy: SaveImage,InkSaver Off

ProbeComp: Squarewave, 1k, 50% duty cycle

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Built-in Help

The Help key shows the contents of the built-inhelp support. When you press a function key, itsdescriptions appear in the display.

Help

Applicable keys Acquire Display Utility Help

Run/Stop

Autoset

Cursor HardcopyMeasure Save/Recall

(Vertical)CH 1 MATH CH 2

(Horizontal)MENU

(Trigger)MENU

FORCE

SINGLE

Procedure 1. Press the Help key. Thedisplay changes to the Helpmode.

Help

2. Press a functional key toaccess its help contents.(example: Acquire key)

Acquire

3. Use the Variable knob toscroll the Help contents upand down.

VARIABLE

4. Press the Help key again toexit the Help mode.

Help


34

MEASUREMENTThe Measurement chapter describes how toproperly observe a signal using the oscilloscope’sbasic functionalities, and how to observe a signalin detailed manners using one of the advancedfunctionalities: automatic measurements, cursormeasurements, and math opetaions.

Basic MeasurementsThis section describes the basic operations required in capturing andviewing an input signal. For more detailed operations, see thefollowing chapters.• Measurements from page34• Configurations from page49

Activating a channel

Activating achannel

To activate an input channel,press the Channel key, CH1 orCH2. The channel indicatorappears at the left side of thedisplay and the channel iconchanges accordingly.

CH 1

or

CH 2


35

De-activating achannel

To de-activate the channel, press the Channel keytwice (once if the channel menu is alreadyselected).

Using the Autoset

Background Autoset function automatically configures thepanel settings to the best viewing conditions, in thefollowing way.• Selecting the horizontal scale• Positioning the waveform horizontally• Selecting the vertical scale• Positioning the waveform vertically• Selecting the trigger source channel• Activating the channels

Procedure 1. Connect the input signal tothe oscilloscope and pressthe Autoset key.

Autoset

2. The waveform appears in the center of thedisplay.


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Undoing theAutoset

To undo the Autoset, pressUndo (available for 5 seconds).

Adjusting thetrigger level

If the waveform is stillunstable, try adjusting thetrigger level up or down byusing the Trigger Level knob.

LEVE L

Limitation Autoset does not work in the following situation.• Input signal frequency less than 20Hz• Input signal amplitude less than 30mV

Running and stopping the trigger

Background In the trigger Run mode, the oscilloscopeconstantly searches for a trigger condition andupdates the signal into the display when thecondition is met.In the trigger Stop mode, the oscilloscope stopstriggering and thus the last acquired waveformsstay in the display. The trigger icon at the top ofthe display changes into Stop mode.

Pressing the Trigger Run/Stop keyswitches between the Run and Stopmode.

Run/Stop


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Waveformoperation

Waveforms can be moved or scaled in both theRun and Stop mode. For details, see page54(Horizontal position/scale) and page58 (Verticalposition/scale).

Changing the horizontal position and scale

For more detailed configurations, see page54.

The horizontal position knobmoves the waveform left or right.

Setting thehorizontalposition The position indicator moves along with the

waveform and the distance from the center point isdisplayed as the offset in the upper side of thedisplay.


38

To select the timebase (scale), turnthe TIME/DIV knob; left (slow) orright (fast).

TIME/DIVSelecting thehorizontal scale

Range 1ns/Div ~ 10s/Div, 1-2-5 increment

Changing the vertical position and scale

For more detailed configuration, see page58.

To move the waveform up ordown, turn the vertical positionknob for each channel.

Set verticalposition

As the waveform moves, the vertical position ofthe cursor appears at the bottom left corner of thedisplay.

Run/Stop mode The waveform can be movedvertically in both Run and Stopmode.

To change the vertical scale,turn the VOLTS/DIV knob; left(down) or right (up).

VOLTS/DIV

Range 2mV/Div ~ 5V/Div, 1-2-5 increments

Select verticalscale

The vertical scale indicator for each channel on thebottom left of the display changes accordingly.

Stop mode In Stop mode, the vertical scalesetting can be changed but thewaveform shape stays the same.

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Using the probe compensation signal

Background This section introduces how to usethe probe compensation signal forgeneral usage, in case the DUTsignal is not available or to get asecond signal for comparison. Forprobe compensation details, seepage91.

Note that the frequency accuracy and duty factorare not guaranteed. Therefore the signal shouldnot be used for reference purpose.

Waveform type Square waveform used for probecompensation. 1k ~ 100kHz, 5% ~95%.

Demonstration signal for showingthe effects of peak detection. Seepage49 for peak detection modedetails.

1. Connect the probe between the compensationsignal output and Channel input.

View the probecompensationwaveform

CH1

x1

x10

2. Press the Utility key. Utility


40

3. Press ProbeComp.

4. Press Wave type repeatedlyto select the wave type.

5. (For only) To changethe frequency, pressFrequency and use theVariable knob.

VARIABLE

Range 1kHz ~ 100kHz

6. (For only) To changethe duty cycle, press DutyCycle and use the Variableknob. VARIABLE

Range 5% ~ 95%

Probecompensation

For probe compensation details, see page91.

41

Automatic MeasurementsAutomatic measurement function measures input signal attributesand updates them in the display.

Measurement items

Overview Voltage type

VppVmaxVminVampVhiVloVavgVrmsROVShootFOVShootRPREShootFPREShoot

Time type

FrequencyPeriodRiseTimeFallTime+Width-WidthDutycycle

Voltagemeasurementitems

Vpp Difference between positiveand negative peak voltage(=Vmax Vmin)

Vmax Positive peak voltage.

Vmin Negative peak voltage.

Vamp Difference between globalhigh and global low voltage(=Vhi Vlo)

Vhi Global high voltage.

Vlo Global low voltage.


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Vavg Averaged voltage of the firstcycle.

Vrms RMS (root mean square)voltage.

ROVShoot Rise overshoot voltage.

FOVShoot Fall overshoot voltage.

RPREShoot Rise preshoot voltage.

FPREShoot Fall preshoot voltage.

Timemeasurementitems

Freq Frequency of the waveform.

Period Waveform cycle time(=1/Freq).

Risetime Rising time of the pulse(~90%).

Falltime Falling time of the pulse(~10%).

+Width Positive pulse width.

–Width Negative pulse width.

Duty Cycle Ratio of signal pulsecompared with whole cycle=100x (Pulse Width/Cycle)

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Automatically measuring the input signals

1. Press the Measure key. MeasureViewing themeasurementresult

2. The measurement results appear on the menubar, constantly updated. Press the menu tochange its measurement item.

Selecting ameasurementitem

1. Press F3 repeatedly to selectthe measurement type:Voltage or Time.

2. Use the Variable knob toselect the measurementitem.

VARIABLE

3. Press Previous Menu toconfirm the item selectionand to go back to themeasurement results view.


44

Cursor MeasurementsCursor line, horizontal or vertical, shows the precise position of theinput waveforms or math operation result.

Using the horizontal cursors

Procedure 1. Press the Cursor key. Thecursors appear in thedisplay.

Cursor

2. Press X Y to select thehorizontal (X1&X2) cursor.

3. Press Source repeatedly toselect the source channel.

Range CH1, 2, Math

4. The cursor measurement results will appear inthe menu, F2 to F4.

Parameters X1 Time position of the left cursor

X2 Time position of the right cursor

The distance between the X1 and X2

f The time distance converted to frequency

Moving thehorizontalcursors

To move the left cursor, pressX1 and then use the Variableknob.

To move the right cursor, pressX2 and then use the Variableknob.

To move both cursors at once,press X1X2 and then use theVariable knob.

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Using the vertical cursors

Procedure 1. Press the Cursor key. Cursor

2. Press X Y to select thevertical (Y1&Y2) cursor.


Range CH1, 2, Math

4. The cursor measurement results will appear inthe menu.

Parameters Y1 Voltage level of the upper cursor

Y2 Voltage level of the lower cursor

The voltage difference between the upperand lower cursor

Moving thevertical cursors

To move the upper cursor,press Y1 and then use theVariable knob.

To move the lower cursor,press Y2 and then use theVariable knob.

To move both cursors at once,press Y1Y2 and then use theVariable knob.


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Math OperationsThe Math operations can add, subtract, or perform FFT on the inputwaveforms. The resulted waveform can be measured using thecursors, and saved or recalled just like normal input signals.

Overview

Addition (+) Adds amplitude of CH1 & CH2 signals.

Subtraction (–) Extracts the amplitude difference between CH1 &CH2.

FFT Runs FFT calculation on a signal. Four types ofFFT windows are available: Hanning, Flattop,Rectangular, and Blackman.

Frequency resolution GoodHanning FFTwindow Amplitude resolution Not good

Suitable for.... Frequency measurement onperiodic waveforms

Frequency resolution Not goodFlattop FFTwindow Amplitude resolution Good

Suitable for.... Amplitude measurement onperiodic waveforms

Frequency resolution Very goodRectangular FFTwindow Amplitude resolution Bad

Suitable for.... Single-shot phenomenon(this mode is the same ashaving no window at all)

Frequency resolution BadBlackman FFTwindow Amplitude resolution Very good

Suitable for.... Amplitude measurement onperiodic waveforms

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Adding or subtracting signals

Procedure 1. Activate both CH1 andCH2.

CH 1 CH 2

2. Press the Math key. MATH

3. Press Operation repeatedlyto select addition (+) orsubtraction (–).

4. The math measurementresult appears in thedisplay.

5. To move the math resultvertically, press Position anduse the Variable knob.

VARIABLE

6. To clear the math resultfrom the display, press theMath key again.

MATH


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Using the FFT function

Procedure 1. Press the Math key. MATH

2. Press Operation repeatedlyto select FFT.


4. Press Window repeatedly toselect the FFT window type.

5. The FFT result appears. The horizontal scalechanges from time to frequency, and thevertical scale from voltage to dB.

6. To move the FFT waveformvertically, press Position anduse the Variable knob.

VARIABLE

Range –12.00 Div ~ +12.00 Div

7. To select the vertical scale ofFFT waveform, pressUnit/Div repeatedly.

Range 1, 2, 5, 10, 20 dB/Div

8. To clear the FFT result fromthe display, press the Mathkey again.

MATH

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CONFIGURATIONThe Configuration chapter describes how toconfigure panel settings to make measurementsand observations suited to the application needs.

AcquisitionThe acquisition process samples the analog input signals andconverts them into digital format for internal processing. You mayselect the normal, average, or peak detect acquisition mode.

Selecting the acquisition mode

Procedure 1. Press the Acquire key. Acquire

2. Select the acquisition modebetween Normal, Averageand Peak Detect.

Normal

Peak

Detect

Average

Range Normal All of the acquired data is used todraw the waveform.


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Average Multiple data are averaged to form awaveform. This mode is useful fordrawing a noise-free waveform. Toselect the number, press Averagerepeatedly.Average number: 2, 4, 8, 16, 32, 64, 128,256

Peak detect To activate the Peak detect mode,press Peak-Detect. Only the minimumand maximum value pairs for eachacquisition interval (bucket) are used.This mode is useful for catchingabnormal glitches in the signal.

Peak detect effectusing the probecomp. waveform

1. One of the probecompensation waveformscan demonstrate the peakdetection mode. Connect theprobe to the probecompensation output.


3. Press ProbeComp.

4. Press Wave Type and selectthe waveform.

5. Press the Autoset key. theoscilloscope positions thewaveform in the center ofthe display.

Autoset

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6. Press the Acquire key. Acquire

7. Press Normal.

8. Press Peak-Detect and seethat a spike noise iscaptured.

Peak

Detect

Example The peak detect mode reveals the occasional glitch.

Normal mode Peak detect mode

Real time vs Equivalent time sampling mode

Backgrounds The oscilloscope automatically switches betweentwo sampling modes, Real-time and Equivalent-time, according to the number of active channelsand sampling rate.

Real-timesampling

One sampled data is used to reconstruct a singlewaveform. Short-time events might get lost if thesampling rate gets too high. This mode is usedwhen the sampling rate is relatively low(250MSa/s or lower).

Equivalent-timesampling

Multiple numbers of sampled data areaccumulated to reconstruct a single waveform.Restores greater waveform details but takes longerto update the waveform. This mode is used whenthe sampling rate becomes higher than 250MSa/s.The maximum equivalent-time sampling rate is25GSa/s.


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DisplayThe Display section describes how to configure the display settings:drawing type, waveform accumulation, contrast adjustment, andgrid settings.

Selecting the vector or dot drawing

1. Press the Display key. DisplayProcedure

2. Press Type repeatedly toselect the waveformdrawing.

Types Dots Only the sampled dots are displayed.

Vectors The sampled dots are connected bylines.

Accumulating the waveform

Background Accumulation preserves the old waveformdrawings and overwrites new waveforms on topof it. It is useful for observing waveform variation.


2. Press Accumulate to turn onthe waveform accumulation.

3. To clear the accumulationand start it over (refresh),press Refresh.


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Example Accumulation off Accumulation on

Adjusting the display contrast

Procedure 1. Press the Display key.Display

2. Press Contrast.

3. Turn the Variable knob leftto lower the contrast (darkdisplay) or right to raise thecontrast (bright display).

VARIABLE

Selecting the display grid


2. Press the grid iconrepeatedly to select the grid.

Parameters Shows the full grid.

Shows the outer frame and X/Y axis.

Shows only the outer frame.


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Horizontal ViewThe Horizontal view section describes how to configure thehorizontal scale, position, waveform update mode, window zoom,and X-Y mode.

Moving the waveform position horizontally

Procedure The horizontal position knobmoves the waveform left orright. The position indicator atthe top of the display shows thecenter and current position.

Center position Moving right

Selecting the horizontal scale

To select the timebase (scale),turn the TIME/DIV knob; left(slow) or right (fast).

TIME/DIV

Range 1ns/Div ~ 10s/Div, 1-2-5 increment

Select horizontalscale

The timebase indicator at the bottom of the displayupdates the current horizontal scale.

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Selecting the waveform update mode

Background The display update mode is switchedautomatically or manually according to thehorizontal scale.

Main mode Updates the whole displayed waveform at once.The main mode is automatically selected when thehorizontal scale (timebase) is fast.

Horizontal scale 100ms/div

Trigger All mode available

Roll mode Updates and moves the waveform gradually fromthe right side of the display to the left. The Rollmode is automatically selected when thehorizontal scale (timebase).When in the Roll mode, an indicator appears at thebottom of the display.

Main mode Roll mode

Timebase 250ms/div ( 100Sa/s)

Trigger Auto mode only

Selecting the Rollmode manually

1. Press the Horizontal menukey.

MENU

2. Press Roll. The horizontalscale automatically becomes250ms/div and thewaveform starts scrollingfrom the right side of thedisplay (If the oscilloscopeis already in the Roll mode,there will be no change).


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Zooming the waveform horizontally

Procedure/ range 1. Press the Horizontal Menukey.

MENU

2. Press Window.

3. Use the horizontal positionknob to move the zoomrange sideways, andTIME/DIV knob to changethe zoom range width.

TIME/DIV

The width of the bar in the middle of thedisplay is the actual zoomed area.

Zoom range 1ns ~ 1ms

4. Press Window Zoom. Thespecified range getszoomed.

Example

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Viewing waveforms in the X-Y mode

Background The X-Y mode compares the voltage of Channel 1and Channel 2 waveforms in a single display. Thismode is useful for observing the phase relationshipbetween the two waveforms.

Procedure 1. Connect the signals toChannel 1 (X-axis) andChannel 2 (Y-axis).

2. Make sure both Channel 1and 2 are activated.

CH 1 CH 2

3. Press the Horizontal key. MENU

4. Press XY. The displayshows two waveforms in X-Y format; Channel 1 as X-axis, Channel 2 as Y-axis.

Horizontal position CH1 Position knobAdjusting the X-Ymode waveform Horizontal scale CH1 Volts/Div knob

Vertical position CH2 Position knob

Vertical scale CH2 Volts/Div knob

Example


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Vertical View (Channel)The Vertical view section describes how to set the vertical scale,position, bandwidth limitation, coupling mode, and attenuation.

Moving the waveform position vertically

Procedure To move the waveform up ordown, turn the vertical positionknob for each channel.

Selecting the vertical scale

Procedure To change the vertical scale,turn the VOLTS/DIV knob; left(down) or right (up).

VOLTS/DIV

Range 2mV/Div ~ 5V/Div, 1-2-5 increments

Selecting the coupling mode

1. Press the Channel key. CH 1Procedure

2. Press Coupling repeatedly toselect the coupling mode.

Range DC coupling mode. The wholeportion (AC and DC) of the signalappears on the display.

Ground coupling mode. The displayshows only the zero voltage level as ahorizontal line. This mode is usefulfor measuring the signal amplitudewith respect to the ground level.

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AC coupling mode. Only the ACportion of the signal appears on thedisplay. This mode is useful forobserving AC waveforms mixed withDC signal.

Inverting the waveform vertically


2. Press Invert. The waveformbecomes inverted (upsidedown) and the Channelindicator in the displayshows a down arrow.

Original Inverted

Limiting the waveform bandwidth

Background Bandwidth limitation puts the input signal into a20MHz ( 3dB) low-pass filter. This function isuseful for cutting off high frequency noise to seethe clear waveform shape. This function isavailable only for DSO-4102 and DSO-4062.

Procedure 1. Press the Channel key. CH 1


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2. Press BW Limit to turn on oroff the limitation. Whenturned on, the BW incicatorappears next to the Channelindicator in the display.

Example BW Limit Off BW Limit On

Selecting the probe attenuation level

Background A signal probe has an attenuation switch to lowerthe original DUT signal level to the oscilloscopeinput range, if necessary. The probe attenuationselection adjusts the vertical scale so that thevoltage level on the display reflects the real value,not the attenuated level.


2. Press Probe repeatedly toselect the attenuation level.

3. The voltage scale in the channel indicatorchanges accordingly. There is no change in thewaveform shape.

Range x1, x10, x100

Note The attenuation factor adds no influence on thereal signal; it only changes the voltage scale on thedisplay.

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TriggerThe Trigger function configures the conditions by which theoscilloscope captures the incoming signals.

Trigger type

Edge Triggers when the signal crosses an amplitudethreshold in either positive or negative slope.

Video Extracts a sync pulse from a video format signaland triggers on a specific line or field.

Pulse Triggers when the pulse width of the signalmatches the trigger settings.

Indicators Edge/Pulse

(CH1, Edge, Rising edge,DC coupling)

Video

(CH1, Video, Positivepolarity, NTSC standard)

Trigger parameter

Trigger source CH1, 2 Channel 1, 2 input signals

Line AC mains signal

Ext External trigger inputsignal

EXT TRIG

Trigger mode Auto The oscilloscope updates the input signalregardless of the trigger conditions (ifthere is no trigger event, the oscilloscopegenerates an internal trigger). Select thismode especially when viewing rollingwaveforms at a slow timebase.


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The Auto trigger status appears in theupper right corner of the display.

Single The oscilloscope acquires theinput signals once when atrigger event occurs, thenstops acquiring. Pressing theSingle key triggers on theinput signals again.

SINGLE

The Single trigger status appears in theupper right corner of the display.

(Searching) (Triggered)

Normal The oscilloscope acquires and updatesthe input signals only when a triggerevent occurs.

The Normal trigger status appears in theupper right corner of the display.

(Searching) (Triggered)

NTSC National Television System CommitteeVideo standard(video trigger) PAL Phase Alternative by Line

SECAM SEquential Couleur A Mémoire

Positive polaritySync polarity(video trigger) Negative polarity

Selects the trigger point in the video signal.Video line(video trigger) field 1 or 2

line 1~263 for NTSC, 1~313 for PAL/SECAM

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Pulse condition(pulse trigger)

Sets the pulse width (20ns ~ 200us) and thetriggering condition.

> Longer than = Equal to

< Shorter than Not equal to

Trigger slope Triggers on the rising edge.

Triggers on the falling edge.

Trigger coupling AC Triggers only on AC component.

DC Triggers on AC+DC component.

Frequencyrejection

LF Puts a high-pass filter and rejects thefrequency below 50kHz.

HF Puts a low-pass filter and rejects thefrequency above 50kHz.

Noise rejection Rejects noise signals.

Trigger level LEVE L Using the trigger level knob moves thetrigger point up or down.

Configuring the edge trigger

Procedure 1. Press the Trigger menu key. MENU

2. Press Type repeatedly toselect edge trigger.

3. Press Source repeatedly toselect the trigger source.

Range Channel 1, 2, Line, Ext


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4. Press Mode repeatedly toselect the Auto or Normaltrigger mode. To select theSingle trigger mode, pressthe Single key.

SINGLE

Range Auto, Normal, Single

5. Press Slope/coupling to enterinto the trigger slope andcoupling selection menu.

6. Press Slope repeatedly toselect the trigger slope,rising or falling edge.

Range Rising edge, falling edge

7. Press Coupling repeatedly toselect the trigger coupling,DC or AC.

Range DC, AC

8. Press Rejection to select thefrequency rejection mode.

Range LF, HF, Off

9. Press Noise Rej to turn thenoise rejection on or off.

Range On, Off

10. Press Previous menu to goback to the previous menu.

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Configuring the video trigger


2. Press Type repeatedly toselect video trigger. Thevideo trigger indicatorappears at the bottom of thedisplay.

3. Press Source repeatedly toselect the trigger sourcechannel.

Range Channel 1, 2

4. Press Standard repeatedly toselect the video standard.

Range NTSC, PAL, SECAM

5. Press Polarity repeatedly toselect the video signalpolarity.

Range positive, negative

6. Press Line repeatedly toselect the video field line.Use the Variable knob toselect the video line.

VARIABLE

Field 1, 2

Video line NTSC: 1 ~ 262 (Even), 1 ~ 263 (Odd)PAL/SECAM: 1 ~ 312 (Even),1 ~ 313 (Odd)


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Configuring the pulse width trigger


2. Press Type repeatedly toselect pulse width trigger.The pulse width triggerindicator appears at thebottom of the display.

3. Press Source repeatedly toselect the trigger source.

Range Channel 1, 2, Ext

4. Press Mode repeatedly toselect the trigger mode,Auto or Normal. To selectthe Single trigger mode,press the Single key.

SINGLE

Range Auto, Normal, Single

5. Press When repeatedly toselect the pulse condition.Then use the Variable knobto set the pulse width.

VARIABLE

Condition > , < , = ,

Width 20ns ~ 200us

6. Press Slope/Coupling to settrigger slope and coupling.

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7. Press Slope repeatedly toselect the trigger slope,which also appears at thebottom of the display.

Range Rising edge, falling edge

8. Press Coupling repeatedly toselect the trigger coupling.

Range DC, AC

9. Press Rejection to select thefrequency rejection mode.

Range LF, HF, Off

10. Press Noise Rej to turn thenoise rejection on or off.

Range On, Off

11. Press Previous menu to goback to the previous menu.


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Manually triggering the signal

Note This section describes how to manually trigger theinput signals when the oscilloscope does notcapture them. This section applies to the Normaland Single trigger mode, since in the Auto triggermode, the oscilloscope keeps updating the inputsignal regardless of the trigger conditions.

To acquire thesignal regardlessof triggerconditions

To acquire the input signalregardless of the triggercondition, press the Force key.The oscilloscope captures thesignals once.

FORCE

In the Singletrigger mode

Press the Single key to startwaiting for the triggercondition. To break out of theSingle mode, press theRun/Stop key. The triggermode changes to the Normalmode.

SINGLE

Run/Stop

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Remote Control InterfaceThe Remote control interface section describes how to set up theUSB interface for PC connection. The details of remote controlcommands are described in the DSO-4000 Programming Manual.

PC side Type A, hostUSB connection

DSO-4000 side Type B, slave

Speed 1.1/2.0 (full speed)

Procedure 1. Connect the USB cable tothe USB slave port.

2. When the PC asks for the USB driver, selectdso_cdc_1000.inf which is downloadable fromthe attached CD-R.

3. On the PC, activate a terminal application suchas MTTTY (Multi-Threaded TTY). To check theCOM port No., see the Device Manager in thePC. For WindowsXP, select Control panel System Hardware tab.

4. Run this query command via the terminalapplication.*idn?This command should return the manufacturer,model number, serial number, and firmwareversion in the following format.Conrad, DSO-4xxx, 000000001, V1.00

5. Configuring the command interface iscompleted. Refer to the programming manualfor the remote commands and other details.


70

System SettingsThe system settings show the oscilloscope’s system information andallow changing the language.

Viewing the system information

Procedure 1. Press the Utility key. Utility

2. Press More.

3. Press System Info. The upperhalf of the display shows thefollowing information.

• Manufacturer • Model

• Serial number • Firmware version

4. Press any other key to goback to the waveformdisplay mode.

Selecting the language

Parameter Language selection differs according to the regionto which the oscilloscope is shipped.

• English • Chinese (traditional)

• Chinese (simplified) • Others

Procedure 1. Press the Utility key. Utility

2. Press Language repeatedly toselect the language.

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SAVE/RECALLThe save function allows saving display image,waveform data, and panel settings into theoscilloscope’s internal memory or an external SDcard. The recall function allows recalling thedefault factory settings, waveform data, and panelsettings from the oscilloscope’s internal memoryor an external SD card.

File StructuresThree types of file are available: display image, waveform file, andpanel settings.

Display image file format

Format xxxx.bmp (Windows bitmap format)

Contents The current display image in 234 x 320 pixels, colormode. The background color can be inverted (Inksaver function).

Waveform file format

Format xxxx.csv (Comma-separated values format whichcan be opened in spreadsheet applications such asMicrosoft Excel)

Waveform type CH1, 2 Input channel signal

Math Math operation result (page46)

Storage location Internalmemory

The oscilloscope’s internal memory,which can hold 15 waveforms.


72

External SDcard

An SD card (2GB or less, FAT orFAT32 format) can hold practicallyunlimited number of waveforms.

Ref A, B The two reference waveforms are usedas the buffer to recall a waveform inthe display. You have to save awaveform into an internal memory oran SD card, then copy the waveforminto the reference waveform slot (A orB), and then recall the referencewaveform into the display.

Waveform dataformat

One division includes25 points of horizontaland vertical data. Thevertical point startsfrom the center line.The horizontal pointstarts from the leftmostwaveform.

0

25

25

25 50 75

The time or amplitude represented by each datapoint depends on the vertical and horizontal scale.For example:Vertical scale: 10mV/div ( 4mV per point)Horizontal scale: 100us/div (4us per point)A waveform file also includes the followinginformation.

Waveform filecontents: otherdata • Memory length

• source channel• vertical offset• vertical scale• coupling mode• waveform last dot

address• date and time

• trigger level• vertical position• time base• probe attenuation• horizontal view• horizontal scale• sampling period• sampling mode

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Setup file format

Format xxxx.set (proprietary format)A setup file saves or recalls the following settings.

Acquire • modeContents

Cursor • source channel• cursor location

• cursor on/off

Display • dots/vectors• grid type

• accumulationon/off

Measure • item

Utility • hardcopy type• language

• ink saver on/off

Horizontal • display mode• position

• scale

Trigger • trigger type• trigger mode• video polarity• pulse timing

• source channel• video standard• video line• slope/coupling

Channel(vertical)

• vertical scale• coupling mode• bandwidth limit

on/off (DSO-4102, DSO-4062)

• vertical position• invert on/off• probe

attenuation

Math • operation type• vertical position• FFT window

• source channel• unit/div


74

Using the SD card file utilities

Background For the SD card inserted into the oscilloscope, filedeletion, folder creation, file/folder rename areavailable from the front panel.

SD Cardrestriction

The DSO-4000 series accept the following SD card.Size: 2GB or lessFormat: FAT or FAT32

Procedure 1. Insert an SD card to the cardslot.

2. Press the Save/Recall key.Select any save or recallfunctionality, for exampleSD card destination in Saveimage function.

Save/Recall

(Example)

3. Press File Utility. Thedisplay shows the SD cardcontents.

4. Use the Variable knob tomove the cursor. Press Selectto go into the folder or goback to the previousdirectory level.

VARIABLE

SD card indicator When an SD card is inserted into the oscilloscope,an indicator appears at the right bottom corner ofthe display. (Unlock the SD card before fileoperations).

SD card SD card (locked )

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Creating a newfolder / renaminga file or folder

1. Move the cursor to the fileor folder location and pressNew Folder or Rename. Thefile/folder name and thecharacter map will appearon the display.

2. Use the Variable knob tomove the pointer to thecharacters. Press EnterCharacter to add a characteror Back Space to delete acharacter.

VARIABLE

3. When editing is completed,press Save. The file/foldercreation or rename will becompleted.

Deleting a folderor file

1. Move the cursor to thefolder or file location andpress Delete. The message“Press F4 again to confirm thisprocess” appears at thebottom of the display.

2. If the file/folder still needsto be deleted, press Deleteagain to complete thedeletion. To cancel thedeletion, press any otherkey.


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Quick Save (HardCopy)

Background The Hardcopy key works as ashortcut for saving displayimage, waveform data, andpanel settings into an SD card.

Hardcopy

Hardcopy key can be configured into two types ofoperation: save image and save all (image,waveform, setup).

Using the Save/Recall key canalso save files with moreoption. For details, see page78.

Save/Recall

Functionalities Save image(*.bmp)

Saves the current display image intoan SD card.

Save all Saves the following items into an SDcard.• Current display image (*.bmp)• Current system settings (*.set)• Current waveform data (*.csv)• Last stored system settings (*.set)• Last stored waveform data (*.csv)

SD Cardrestriction


Procedure 1. Insert an SD card to the slot.


3. Press Hardcopy Menu.

4. Press Function repeatedly toselect Save Image or Save All.

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5. To invert the color in thedisplay image, press InkSaver and turn on or off theInk Saver.

6. Press the Hardcopy key.The file or folder will besaved to the root directoryof the SD card.

Hardcopy


78

SaveThis section describes how to save data using the Save/Recall menu.

File type/source/destination

Item Source Destination

Panel setup(xxxx.set)

• Panel settings • Internal memory: S1 ~S15

• External memory: SDcard

Waveform data(xxxx.csv)

• Channel 1, 2• Math operation

result• Reference

waveform A, B

• Internal memory: W1 ~W15

• Reference waveform A, B• External memory: SD

card

Display image(xxxx.bmp)

• Display image • External memory: SDcard

Save All • Display image(xxxx.bmp)

• Waveform data(xxxx.csv)

• Panel settings(xxxx.set)


SD Cardrestriction


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Saving the panel settings

Procedure 1. (For saving to an externalSD card) Insert the card intothe slot.

2. Press the Save/Recall keytwice to recall the Savemenu.

Save/Recall Save/Recall

3. Press Save Setup.

4. Press Destination repeatedlyto select the saved location.Use the Variable knob tochange the internal memorylocation (S1 ~ S15).

VARIABLE

Memory Internal memory, S1 ~ S15

SD card External card, no practicallimitation for the amount of file.When saved, the setup file will beplaced in the root directory.

5. Press Save to confirmsaving. When completed, amessage appears at thebottom of the display.

NoteThe file will not be saved if thepower is turned off or SD card isdisconnected before completion.

File utilities To edit SD card contents(create/ delete/ rename filesand folders), press File Utilities.For details, see page74.


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Saving the waveform




3. Press Save Waveform.

4. Press Source. Use theVariable knob to select thesource signal.

VARIABLE

CH1 ~ CH2 Channel 1 ~ 2 signal

Math Math operation result (page46)

RefA, B Internally stored referencewaveforms A, B

5. Press Destination repeatedlyto select the file destination.Use the Variable knob toselect the memory location.

VARIABLE

Memory Internal memory, W1 ~ W15

SD card External card, no practicallimitation for the amount of file.When saved, the waveform will beplaced in the root directory.

Ref Internal reference waveform, A/B

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NoteThe file will not be saved if thepower is turned off or the SD card isdisconnected before completion.


Saving the display image




3. Press Save Image.

4. Press Ink Saver repeatedly toinvert the background color(on) or not (off).

5. Press Destination.


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SD card External card, no practicallimitation on the amount of file.When saved, the image file will beplaced in the root directory.




Saving all (panel settings, display image, waveform)




3. Press Save All. The followinginformation will be saved.

Setup file(Axxxx.set)

Two types of setups are saved:the current panel setting andthe last internally savedsettings (one of S1 ~ S15).

Display image(Axxxx.bmp)

The current display image inthe bitmap format.

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Waveform data(Axxxx.csv)

Two types of waveform dataare saved: the currently activechannel data and the lastinternally saved data (one ofW1 ~ W15).

4. Press Ink Saver repeatedly toinvert the background color(on) or not (off) for thedisplay image.

5. Press Destination.

SD card External card, no practicallimitation for the amount of file.When saved, the folder will beplaced in the root directory.



7. Together with the current setup/waveform/image, the last saved waveform file (one fromW1 ~ W15) and setup file (one from S1 ~ S15)are also included in the folder.



84

RecallFile type/source/destination

Item Source DestinationDefault panelsetup

• Factory installedsetting

• Current front panel

Referencewaveform

• Internal memory: A, B • Current front panel

Panel setup(DSxxxx.set)

• Internal memory: S1 ~S15


• Current front panel

Waveform data(DSxxxx.csv)

• Internal memory: W1 ~W15


• Reference waveformA, B

SD Cardrestriction


Recalling the default panel settings

Procedure 1. Press the Save/Recall key. Save/Recall

2. Press Default Setup. Thefactory installed setting willbe recalled.

Setting contents The following is the default panel setting contents.

Acquisition Mode: Normal

Channel Coupling: DC Invert: Off

BW limit: Off(DSO-4102, DSO-4062)

Probe attenuation: x1

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Cursor Source: CH1 Horizontal: None

Vertical: None

Display Type: Vectors Accumulate: Off

Graticule:

Horizontal Scale: 2.5us/Div Mode: Main Timebase

Math Type: + (Add) Channel: CH1+CH2

Position: 0.00 Div Unit/Div: 2V

Measure Item: Vpp, Vavg, Frequency, Duty cycle, Rise Time

Trigger Type: Edge Source: Channel1

Mode: Auto Slope:

Coupling: DC Rejection: Off

Noise Rejection: Off

Utility SaveImage, InkSaver Off


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Recalling a reference waveform to the display

Procedure 1. The reference waveform must be stored inadvance. See page80 for details.

2. Press the Save/Recall key. Save/Recall

3. Press Display Refs. Thereference waveform displaymenu appears.

4. Select the referencewaveform, Ref A or Ref B,and press it. The waveformappears on the display andthe period and amplitude ofthe waveform appears in themenu.

5. To clear the waveform fromthe display, press RefA/Bagain.

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Recalling panel settings

Procedure 1. (For recalling from anexternal SD card) Insert thecard into the slot.


3. Press Recall Setup.

4. Press Source repeatedly toselect the file source,internal or externalmemory. Use the Variableknob to change the memory.

VARIABLE

Memory Internal memory, S1 ~ S15

SD card External card, no practicallimitation on the amount of file. Thesetup file must be placed in the rootdirectory to be recognized.

5. Press Recall to confirmrecalling. When completed,a message appears at thebottom of the display.

NoteThe file will not be saved if thepower is turned Off or SD card isdisconnected before completion.



88

Recalling a waveform

Procedure 1. (For recalling from anexternal SD card) Insert thecard into the slot.


3. Press Recall Waveform. Thedisplay shows the availablesource and destinationoptions.

4. Press Source repeatedly toselect the file source,internal memory or externalSD card. Use the Variableknob to change the memorylocation (W1 ~ W15).

VARIABLE

Memory Internal memory, W1 ~ W15

SD card External flash drive, nopractical limitation on theamount of file. The waveformfile must be placed in the rootdirectory to be recognized.

5. Press Destination. Use theVariable knob to select thememory location.

VARIABLE

RefA, B Internally stored referencewaveforms A, B

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6. Press Recall to confirmrecalling. When completed,a message appears at thebottom of the display.




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MAINTENANCETwo types of maintenance operations areavailable: calibrating the vertical resolution, andcompensating the probe. Run these operationswhen using the oscilloscope in a new environment.

Vertical Resolution Calibration

1. Press the Utility key. UtilityProcedure

2. Press More.

3. Press Self Cal Menu.

4. Press Vertical. The message“Set CAL to CH1, then pressF5” appears at the bottom ofthe display.

5. Connect the calibrationsignal between the rearpanel CAL out terminal andthe Channel1 input.

6. Press F5. The calibration automatically starts.

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7. The Channel1 calibrationwill complete in less than 5minutes.

Ch1 calibration 1/3

8. When finished, connect thecalibration signal to theChannel 2 input and repeatthe procedure.

Done!!

9. The calibration is completed and the displaygoes back to the previous state.

Probe Compensation

Procedure 1. Connect the probe between Channel1 input andthe probe compensation output (2Vp-p, 1kHzsquare wave) on the front panel. Set the probeattenuation to x10.

CH1

x1

x10


3. Press ProbeComp.

4. Press Wavetype repeatedly toselect the standard squarewave.


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5. Press the Autoset key. Thecompensation signal willappear in the display.

Autoset

6. Press the Display key, thenType to select the vectorwaveform.

7. Turn the adjustment point on the probe untilthe signal edge becomes sharp.

OverCompensation Normal

UnderCompensation

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FAQThe input signal does not appear in the display.

I want to remove some contents from the display.

The waveform does not update (frozen).

The probe waveform is distorted.

Autoset does not catch the signal well.

I want to clean up the cluttered panel settings.

The accuracy does not match the specifications.

The SD card slot does not accept my card.

The input signal does not appear in the display.

Make sure you have activated the channel. If not, press the CH key.If the signal still does not appear, press the Autoset key.

I want to remove some contents from the display.

To clear the math result, press the Math key twice (page46).To clear the cursor, press the Cursor key again (page44).To clear the Help contents, press the Help key again (page33).

The waveform does not update (frozen).

Press the Run/Stop key to unfreeze the waveform. See page36 fordetails. For trigger setting details, see page61.


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The probe waveform is distorted.

You might need to compensate the probe. For details, see page91.Note that the frequency accuracy and duty factor are not specifiedfor probe compensation waveform and therefore it should not beused for other reference purpose.

Autoset does not catch the signal well.

Autoset function cannot catch signals under 30mV or 30Hz. Pleaseuse the manual operation. See page35 for details.

I want to clean up the cluttered panel settings.

Recall the default settings by pressing the Save/Recall key DefaultSetting. For default setting contents, see page32.

The saved display image is too dark on the background.

Use the Inksaver function which reverses the background color. Fordetails, see page81.

The accuracy does not match the specifications.

Make sure the device is powered on for at least 30 minutes, within+20°C~+30°C. This is necessary to stabilize the unit to match thespecification.

The SD card slot does not accept my card.

Make sure it is a 1. Standard SD card (MMC and SDHC are notsupported), 2. 2GB or less, and 3. FAT or FAT32 formatted.

For more information, please contact your local dealer.

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APPENDIXFuse Replacement

Procedure 1. Take off the power cord and remove the fusesocket using a minus driver.

2. Replace the fuse in the holder.

Ratings T1A, 250V


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DSO-4000 Series SpecificationsThe specifications apply when the oscilloscope is powered on for atleast 30 minutes under +20°C~+30°C.

Model-specific specifications

DSO-4022 Bandwidth ( 3dB) DC coupling: DC ~ 25MHzAC coupling: 10Hz ~ 25MHz

Bandwidth Limit NoneTrigger Sensitivity Approx. 0.5div or 5mVExternal TriggerSensitivity

~ 50mV

Rise Time < 14ns approx.DSO-4042 Bandwidth ( 3dB) DC coupling: DC ~ 40MHz

AC coupling: 10Hz ~ 40MHzBandwidth Limit NoneTrigger Sensitivity 0.5div or 5mV (DC ~ 25MHz)

1.5div or 15mV (25MHz~40MHz)External TriggerSensitivity

~ 50mV

Rise Time < 8.75ns approx.DSO-4062 Bandwidth ( 3dB) DC coupling: DC ~ 60MHz

AC coupling: 10Hz ~ 60MHzBandwidth Limit 20MHz ( 3dB)Trigger Sensitivity 0.5div or 5mV (DC ~ 25MHz)


~ 50mV (DC~25MHz)~ 100mV (25MHz~60MHz)

Rise Time < 5.8ns approx.DSO-4102 Bandwidth ( 3dB) DC coupling: DC ~ 100MHz

AC coupling: 10Hz ~ 100MHzBandwidth Limit 20MHz ( 3dB)Trigger Sensitivity 0.5div or 5mV (DC ~ 25MHz)


~ 50mV (DC~25MHz)~ 100mV (25MHz~100MHz)

Rise Time < 3.5ns approx.

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Common specifications

Vertical Sensitivity 2mV/div~5V/Div (1-2-5 increments)Accuracy ± (3% x |Readout|+0.1div + 1mV)Bandwidth See model-specific specificationsRise Time See model-specific specificationsInput Coupling AC, DC, GroundInput Impedance 1M ±2%, ~15pFPolarity Normal, InvertMaximum Input 300V (DC+AC peak), CAT IIMath Operation +, –, FFTOffset Range 2mV/div~50mV/div: ±0.4V

10mV/div~500mV/div: ±4V1V/div~5V/div: ±40V

Trigger Sources CH1, CH2, Line, EXTModes Auto, Normal, Single, TV, Edge, PulseCoupling AC, DC, LFrej, HFrej, Noise rejSensitivity See model-specific specifications

External trigger Range DC: ±15V, AC: ±2VSensitivity See model-specific specificationsInput Impedance 1M ±2%, ~16pFMaximum Input 300V (DC+AC peak), CATII

Horizontal Range 1ns/div~10s/div, 1-2-5 incrementRoll: 250ms/div – 10s/div

Modes Main, Window, Window Zoom, Roll, X-YAccuracy ±0.01%Pre-Trigger 10 div maximumPost-Trigger 1000 div

X-Y Mode X-Axis Input Channel 1Y-Axis Input Channel 2Phase Shift ±3° at 100kHz

Signal Acquisition Real-Time 250M Sa/s maximumEquivalent 25G Sa/s maximumVerticalResolution

8 bits

Record Length 4k points maximumAcquisition Normal, Peak Detect, AveragePeak Detection 10ns (500ns/div ~ 10s/div)Average 2, 4, 8, 16, 32, 64, 128, 256


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Cursors andMeasurement

Voltage Vpp, Vamp, Vavg, Vrms, Vhi, Vlo, Vmax,Vmin, Rise Preshoot/ Overshoot, FallPreshoot/ Overshoot

Time Freq, Period, Rise Time, Fall Time, +Width, – Width, Duty Cycle

Cursors Voltage difference ( V) andTime difference ( T) between cursors

Auto Counter Resolution: 6 digits, Accuracy: ±2%Signal source: All available trigger sourceexcept the Video trigger

Control PanelFunction

Autoset Automatically adjust Vertical Volt/div,Horizontal Time/div, and Trigger level

Save/Recall Up to 15 sets of measurementconditions and waveforms

Display LCD 5.6 inch, TFT, brightness adjustableResolution (dots) 234 (Vertical) x 320 (Horizontal)Graticule 8 x 10 divisionsDisplay Contrast Adjustable

Interface USB SlaveConnector

USB1.1 & 2.0 full speed compatible(printers and flash disk not supported)

SD Card Slot Image (BMP) and waveform data (CSV)ProbeCompensationSignal

Frequency range 1kHz ~ 100kHz adjustable, 1kHz step

Duty cycle 5% ~ 95% adjustable, 5% stepAmplitude 2Vpp±3%

Power Source Line Voltage 100V~240V AC, 47Hz~63HzPowerConsumption

18W, 40VA maximum

Fuse Rating 1A slow, 250VOperationEnvironment

Ambient temperature 0 ~ 50°CRelative humidity 80% @35°C

StorageEnvironment

Ambient temperature –20 ~ 70°CRelative humidity 80% @70°C

Dimensions 341.5 (W) x 162.3 (H) x 159 (D) mmWeight Approx. 2.5kg

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Probe Specifications

DSO-4022/4042 Probe

Applicable model &probe

DSO-4022, DSO-4042GTP-060A-4

Position x 10 Attenuation Ratio 10:1Bandwidth DC ~ 60MHzInput Resistance 10M when used with 1M inputInput Capacitance 30pF approx.Maximum InputVoltage

600Vpeak CATIIDerating with frequency

Position x 1 Attenuation Ratio 1:1Bandwidth DC ~ 6MHzInput Resistance 1M when used with 1M inputInput Capacitance 200pF approx.Maximum InputVoltage

200Vpeak CATIIDerating with frequency

Operating Cond. Temperature –10°C ~ 55°CRelative Humidity 85% @35°C

Safety Standard EN 61010-031 CAT II

DSO-4062/4102 Probe

Applicable model &probe

DSO-4062GTP-060A-2

DSO-4102GTP-100A-2

Position x 10 Attenuation Ratio 10:1Bandwidth DC ~ 60MHz DC ~ 100MHzInput Resistance 10M when used with 1M inputInput Capacitance 23pF approx. 17pF approx.Maximum InputVoltage

500V CAT I, 300V CAT II (DC+Peak AC)Derating with frequency

Position x 1 Attenuation Ratio 1:1Bandwidth DC ~ 6MHzInput Resistance 1M when used with 1M inputInput Capacitance 180pF approx. 47pF approx.Maximum InputVoltage

300V CAT I, 150V CAT II (DC+Peak AC)Derating with frequency

Operating Cond. Temperature –10°C ~ 55°CRelative Humidity 85% @35°C

Safety Standard EN 61010-031 CAT II


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Declaration of ConformityThe below mentioned productsType of Product: Digital Storage OscilloscopeModel Number: DSO-4022, DSO-4042, DSO-4062, DSO-4102are herewith confirmed to comply with the requirements set out inthe Council Directive on the Approximation of the Law of MemberStates relating to Electromagnetic Compatibility (2004/108/EC) andLow Voltage Directive (2006/95/EC).For the evaluation regarding the Electromagnetic Compatibility andLow Voltage Directive, the following standards were applied:

EMCEN 61326-1: Electrical equipment for measurement, control andlaboratory use –– EMC requirements (2006)Conducted EmissionRadiated EmissionEN 55011: Class A 1998 + A1:1999+ A2:2002

Electrical Fast TransientsEN 61000-4-4: 2004

Current HarmonicsEN 61000-3-2: 2000 + A2:2005

Surge ImmunityEN 61000-4-5: 1995 + A1:2001

Voltage FluctuationsEN 61000-3-3: 1995 + A1:2001 +A2:2005

Conducted SusceptibilityEN 61000-4-6: 1996 + A1:2001

Electrostatic DischargeEN 61000-4-2: 1995 + A1:1998 +A2:2001

Power Frequency Magnetic FieldEN 61000-4-8: 1993 + A1:2001

Radiated ImmunityEN 61000-4-3: 2002 + A1:2002

Voltage Dip/ InterruptionEN 61000-4-11: 2004

SafetyLow Voltage Equipment Directive 2006/95/ECSafety RequirementsIEC/EN 61010-1: 2001

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INDEXAC coupling.............................. 59accumulating waveform........... 52acquisition................................. 49

menu tree .........................................18specification.....................................97

addition..................................... 47menu tree .........................................22

amplitude measure................... 41auto set ...................................... 35

exception ..........................................36faq ......................................................94specification.....................................98

Documents

Digital Storage Oscilloscope · 2015. 9. 17. · may damage the oscilloscope. • Avoid discharges of static electricity on or near the oscilloscope. • Use only mating connectors,