VOLTCRAFT VDO-2072A, VDO-2152A, VDO-2102A User guide

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WICHTIGER HINWEIS

DIGITALES SPEICHEROSZILLOSKOP

BEST.-NR.: 12 24 42 / 12 24 43 / 12 24 44 / 12 24 52 / 12 24 54 / 12 24 55

VERSION 03/12

IMPORTANT NOTE

VERSION 03/12

DIGITAL STORAGE OSCILLOSCOPE

ITEM NO.: 12 24 42 / 12 24 43 / 12 24 44 / 12 24 52 / 12 24 54 / 12 24 55

Sehr geehrte Kundin, sehr geehrter Kunde,

bitte beachten Sie, dass Sie zur Installation der Software „Freewave“ unter der 64-Bit Version von Windows 7 die zwei folgenden Programme benötigen:

Microsoft .NET Framework Version 4.0 (Vollversion)1.

Zum Download erhältlich unter: http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=17718

Microsoft Visual C++ 2010 Redistributable Package (x64)2.

Zum Download erhältlich unter: http://www.microsoft.com/download/en/details.aspx?id=14632

Vielen Dank für Ihr Verständnis.

Ihr VOLTCRAFT-Team

Impressum

Dieser Hinweis ist eine Publikation von Voltcraft®, Lindenweg 15, D-92242 Hirschau, Tel.-Nr. 0180/586 582 7 (www.voltcraft.de).

Alle Rechte einschließlich Übersetzung vorbehalten. Reproduktionen jeder Art, z. B. Fotokopie, Mikroverlmung, oder die Erfassung in

elektronischen Datenverarbeitungsanlagen, bedürfen der schriftlichen Genehmigung des Herausgebers. Nachdruck, auch auszugsweise, verboten.

Dieser Hinweis entspricht dem technischen Stand bei Drucklegung. Änderung in Technik und Ausstattung vorbehalten.

Dear Customer,

please note that the following two programs are required for installing the “Freewave” software using the 64-bit version of Windows 7:

Microsoft .NET Framework Version 4.0 (full version)1.

Available for download at: http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=17718

Microsoft Visual C++ 2010 Redistributable Package (x64)2.

Available for download at: http://www.microsoft.com/download/en/details.aspx?id=14632

Thank you for your kind attention.

Your VOLTCRAFT team

Legal notice

This note is a publication by Voltcraft®, Lindenweg 15, D-92242 Hirschau/Germany, Phone +49 180/586 582 7 (www.voltcraft.de).

All rights including translation reserved. Reproduction by any method, e.g. photocopy, microlming, or the capture in electronic data processing

systems require the prior written approval by the editor. Reprinting, also in part, is prohibited. This note represents the technical status at the time of printing. Changes in technology and equipment reserved.

REMARQUE IMPORTANTE

VERSION 03/12

OSCILLOSCOPE NUMÉRIQUE À MÉMOIRE

Nº DE COMMANDE : 12 24 42 / 12 24 43 / 12 24 44 / 12 24 52 / 12 24 54 / 12 24 55

BELANGRIJKE INFORMATIE

VERSIE 03/12

DIGITAAL GEHEUGENOSCILLOSCOOP

BESTELNR.: 12 24 42 / 12 24 43 / 12 24 44 / 12 24 52 / 12 24 54 / 12 24 55

Chère cliente, cher client,

Attention : l’installation du logiciel « Freewave » sous Windows 7 64 bits requiert les deux applications ci-après :

Microsoft .NET Framework Version 4.0 (version complète)1.

Adresse de téléchargement : http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=17718

Microsoft Visual C++ 2010 Redistributable Package (x64)2.

Adresse de téléchargement : http://www.microsoft.com/download/en/details.aspx?id=14632

Merci de votre attention.

Votre équipe VOLTCRAFT

Informations légales

Cette remarque est une publication de la société Voltcraft®, Lindenweg 15, D-92242 Hirschau/Allemagne, Tél. +49 180/586 582 7 (www.voltcraft.de).

traitement de données) nécessite une autorisation écrite de l’éditeur. Il est interdit de le réimprimer, même par extraits.

Cette remarque correspond au niveau technique du moment de la mise sous presse. Sous réserve de modications techniques et de

l’équipement.

Geachte klant,

denk er aan dat voor het installeren van de software “Freewave” onder de 64-bit versie van Windows 7 de twee onderstaande programma’s nodig zijn:

Microsoft .NET Framework Version 4.0 (complete versie)1.

Voor download beschikbaar onder: http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=17718

Microsoft Visual C++ 2010 Redistributable Package (x64)2.

Voor download beschikbaar onder: http://www.microsoft.com/download/en/details.aspx?id=14632

Dank u voor uw aandacht.

Uw VOLTCRAFT-team

Colofon

Deze informatie is een publicatie van de rma Voltcraft®, Lindenweg 15, D-92242 Hirschau/Duitsland, Tel. +49 180/586 582 7 (www.voltcraft.de).

Alle rechten, vertaling inbegrepen, voorbehouden. Reproducties van welke aard dan ook, bijvoorbeeld fotokopie, microverlming of de registratie

in elektronische gegevensverwerkingsapparatuur, vereisen de schriftelijke toestemming van de uitgever. Nadruk, ook van uittreksels, verboden. Deze informatie voldoet aan de technische stand bij het in druk bezorgen. Wijziging van techniek en uitrusting voorbehouden.

DIGITAL STORAGE OSCILLOSCOPE

OPERATING INSTRUCTIONS

Item No. : 12 24 52 VDO-2072A / 70 MHz 12 24 54 VDO-2152A / 150 MHz 12 24 55 VDO-2102A / 100 MHz

Version 08/11

TABLE OF CONTENTS

1. INTRODUCTION 7

2. SAFETY INSTRUCTIONS 8 Safety Symbols 8 Safety Guidelines 9 Power cord for the United Kingdom 12

3. GETTING STARTED 13

Main Features 13 Panel Overview 15

Front Panel 15 Rear Panel 19 Display 20

Setting up the Oscilloscope 21

4. QUICK REFERENCE 24

Menu Tree and Shortcuts 24

CH1/CH2 key 25 Cursor key 1/2 26 Cursor key 2/2 26 Display key 27 Autoset key 27 Hardcopy key 27 Help key 28 Horizontal menu key 28 Math key 1/2 (+/-/x) 29 Math key 2/2 (FFT/FFT rms) 30 Measure key 31 Run/Stop key 31 Save/Recall key 1/10 32 Save/Recall key 2/10 32 Save/Recall key 3/10 33 Save/Recall key 4/10 33 Save/Recall key 5/10 34 Save/Recall key 6/10 34 Save/Recall key 7/10 35 Save/Recall key 8/10 35 Save/Recall key 9/10 36

Save/Recall key 10/10 36 Trigger key 1/6 37 Trigger key 2/6 37 Trigger key 3/6 38 Trigger key 4/6 38 Trigger key 5/6 39 Trigger key 6/6 39 Utility key 1/11 (Utility #1) 40 Utility key 2/11 (Utility #2) 40 Utility key 3/11 (Utility #3) 41 Utility key 4/11 (Hardcopy -Save All) 41 Utility key 5/11 (Hardcopy -Printer) 42 Utility key 6/11 (Hardcopy -Save Image) 42 Utility key 7/11 (Probe compensation) 43 Utility key 8/11 (Go-NoGo) 43 Utility key 9/11 (Data Logging 1/2) 44 Utility key 10/11 (Data Logging 2/2) 44

Utility key 11/11 (Self CAL Menu) 44 Default Settings 45 Built-in Help 46

5. MEASUREMENT 47 Basic Measurements 47

Activating a channel 47 Using Autoset 48 Running and stopping the trigger 50 Changing the horizontal position and scale 51 Changing the vertical position and scale 52 Using the probe compensation signal 53

Automatic Measurements 55

Measurement items 55 Automatic measurement gating 57 Automatically measuring the input signals 58

Cursor Measurements 61

Using the horizontal cursors 61 Using the vertical cursors 62

Math Operations 63

Overview 63

Adding, subtracting or multiplying signals 64 Using the FFT function 65

Go No-Go Testing 67

Overview 67 Edit: NoGo When 68 Edit: Source 68 Edit: NoGo Violation Conditions 69 Edit: Template (boundary) 69 Run Go-NoGo Tests 73

Data Logging 74

Overview 74 Edit: Source 75 Edit: Setup Parameters 75 Run Data logging 77

6. CONFIGURATION 78 Acquisition 78

Selecting the acquisition mode 78 Selecting Delay mode 80 Real time vs Equivalent time sampling mode 82

Display 83

Selecting vector or dot drawing 83 Accumulating the waveform 83 Adjusting the display contrast 84 Selecting the display grid 84

Horizontal View 85

Moving the waveform position horizontally 85 Selecting the horizontal scale 85 Selecting the waveform update mode 86 Zooming the waveform horizontally 87 Viewing waveforms in the X-Y mode 88 Horizontal Adjustment Menu 89

Vertical View (Channel) 91

Moving the waveform position vertically 91 Selecting the vertical scale 91 Selecting the coupling mode 91 Expand Vertical Scale Center / Ground 92 Inverting the waveform vertically 93

Limiting the waveform bandwidth 94 Selecting the probe attenuation level 94

Trigger 96

Trigger type 96 Trigger parameter 96

Conguring Holdoff 98 Conguring the edge trigger 99 Conguring the video trigger 100 Conguring the pulse width trigger 101

Manually triggering the signal 103 Rear Panel USB Port Interface 104 Remote Control Interface 105 System Settings 107

Viewing the system information 107

Selecting the language 107

7. SAVE/RECALL 109 File Structures 109

Display image le format 109 Waveform le format 109 Setup le format 112 Using the USB le utilities 113

Quick Save (HardCopy) 115 Save 117

File type / source / destination 117 Saving the panel settings 118 Saving the waveform 119 Saving the display image 121 Saving all (panel settings, display image, waveform) 122

Recall 124

File type / source / destination 124 Recalling the default panel settings 125 Recalling a reference waveform to the display 126 Recalling panel settings 126 Recalling a waveform 127 Recall Image 129

8. PRINT 131 Print (Hardcopy) 131

9. MAINTENANCE 134 Vertical Resolution Calibration 134 Probe Compensation 135

10. FAQ 137

The input signal does not appear in the display. 137 I want to remove some contents from the display. 137 The waveform does not update (frozen). 138 The probe waveform is distorted. 138 Autoset does not catch the signal well. 138 I want to clean up the cluttered panel settings. 138 The saved display image is too dark on the background. 138

The accuracy does not match the specications. 139

The oscilloscope will not allow a 2M waveform to be saved. 139

11. APPENDIX 140 Fuse Replacement 140

VDO-2000A Series Specications 141

Model-specic specications 141 Common specications 142

Probe Specications 144

VDO-2072A / VDO-2102A / VDO-2152A Probe 144

Dimensions 145

12. DISPOSAL 145

1. INTRODUCTION

Dear Customer,

In purchasing this Voltcraft® product, you have made a very good decision for which we would like to thank you.

Voltcraft® - In the eld of measuring, charging and network technology, this name stands for

high-quality products which perform superbly and which are created by experts whose concern is continuous innovation.

From the ambitious hobby electronics enthusiast to the professional user, products from the Voltcraft® brand family provide the optimum solution even for the most demanding tasks. And the remarkable feature is: we offer you the mature technology and reliable quality of our Voltcraft® products at an almost unbeatable price-performance ratio. In this way, we aim to establish a long, fruitful and successful co-operation with our customers.

We wish you a great deal of enjoyment with your new Voltcraft® product!

2. SAFETY INSTRUCTIONS

This chapter contains important safety instructions that should be followed when operating and storing the oscilloscope. Read the following before any operation to ensure your safety and to keep the oscilloscope in the best condition.

Safety Symbols

These safety symbols may appear in this manual or on the oscilloscope.

Warning: Identies conditions or practices that could result in injury or loss of life.

WARNING

Caution: Identies conditions or practices that could result in damage to the

oscilloscope or to other objects or property.

CAUTION

DANGER High Voltage

Attention: Refer to the Manual

Protective Conductor Terminal

Earth (Ground) Terminal

Safety Guidelines

General Guideline

• Make sure the BNC input voltage does not exceed 300V peak.

• Never connect a hazardous live voltage to the ground side of the BNC connectors. It might lead to re and electric shock.

• Do not place heavy objects on the oscilloscope.

• Avoid severe impact 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 vent.

• Do not perform measurements at power sources and building installation sites

(Note below).

• The oscilloscope should only be disassembled by a qualied technician.

(Measurement categories) EN 61010-1:2001 species the measurement

categories and their requirements as follows. The unit falls under category II.

• Measurement category IV is for measurement performed at the source of a low-voltage installation.

• Measurement category III is for measurement performed in a building installation.

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

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

Power Supply • AC Input voltage: 100 ~ 240V AC, 47 ~ 63Hz

WARNING

Fuse • Fuse type: T1A/250V

• The power supply voltage should not uctuate more than 10%.

• Connect the protective grounding conductor of the AC power cord to an earth

ground.

• To ensure re protection, replace the fuse only with the specied type and

rating.

• Disconnect the power cord before replacing the fuse.

• Make sure the cause of fuse blowout is xed before replacing the fuse.

Cleaning the oscillo-scope

Operation Environment

• Disconnect the power cord before cleaning the oscilloscope.

• Use a soft cloth dampened in a solution of mild detergent and water. Do not

spray any liquid into the oscilloscope.

• Do not use chemicals containing harsh products such as benzene, toluene, xylene, and acetone.

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

• Relative Humidity: ≤ 80%, 40°C or below

≤ 45%, 41°C~50°C

• Altitude: < 2000m

• Temperature: 0°C to 50°C

(Pollution Degree) EN 61010-1:2001 species pollution degrees and their

requirements as follows. The oscilloscope falls under degree 2. Pollution refers to “addition of foreign matter, solid, liquid, or gaseous (ionized gases), that may produce a reduction of dielectric strength or surface resistivity”.

• Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The pollution has no inuence.

• Pollution degree 2: Normally only non-conductive pollution occurs. Occasionally,

however, a temporary conductivity caused by condensation must be expected.

• Pollution degree 3: Conductive pollution occurs, or dry, nonconductive pollution occurs which becomes conductive due to condensation which is expected. In such conditions, equipment is normally protected against exposure to direct sunlight, precipitation, and full wind pressure, but neither temperature nor humidity is controlled.

Storage environment

• Location: Indoor

• Storage Temperature: -10°C~60°C, no condensation

• Relative Humidity: 93% @ 40°C

65% @ 41°C ~60°C

Power cord for the United Kingdom

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

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

WARNING: THIS APPLIANCE MUST BE EARTHED

IMPORTANT: The wires in this lead are coloured in accordance with the following code:\

Green / Yellow: Earth Blue: Neutral Brown: Live (Phase)

As the colours of the wires in main leads may not correspond with the coloured marking identied in

your plug/appliance, proceed as follows:

The wire which is coloured Green & Yellow must be connected to the Earth terminal marked with either the letter E, the earth symbol or coloured Green/Green & Yellow.

The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Blue or Black.

The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red.

If in doubt, consult the instructions provided with the equipment or contact the supplier.

This cable/appliance should be protected by a suitably rated and approved HBC mains fuse: refer to the rating information on the equipment and/or user instructions for details. As a guide, a cable of

0.75mm2 should be protected by a 3A or 5A fuse. Larger conductors would normally require

13A types, depending on the connection method used.

Any exposed wiring from a cable, plug or connection that is engaged in a live socket is extremely hazardous. If a cable or plug is deemed hazardous, turn off the mains power and remove the cable, any fuses and fuse assemblies. All hazardous wiring must be immediately destroyed and replaced in accordance to the above standard.

3. GETTING STARTED

The Getting started chapter introduces the oscilloscope’s main features, appearance, and set up procedure.

Main Features

Model name Frequency bandwidth Input channels

VDO-2072A DC – 70MHz (–3dB) 2

VDO-2102A DC – 100MHz (–3dB) 2

VDO-2152A DC – 150MHz (–3dB) 2 Performance

Features

• 1 GS/s real-time sampling rate

• 25GS/s equivalent-time sampling rate

• 2M points record length

• Up to 10ns peak detection

• 2mV~10V vertical scale

• 1ns ~ 50s time scale

• 5.6 inch color TFT display

• Saving and recalling setups and waveforms

• 27 automatic measurements

• Multi-language menu (12 languages)

• Math operation: Addition, Subtraction, multiplication, FFT, FFT RMS

• Data logging

• Go-NoGo testing

• Edge, video, pulse width trigger

• Compact size: (W) 310 x (D) 140 x (H) 142 mm

• Probe factor from 0.1X~2000X voltage/current

Interface • USB 2.0 full-speed interface for saving and recalling data

• Calibration output

• External trigger input

• USB slave interface for remote control

• PictBridge Printer compatible

Panel Overview

Front Panel

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

Function keys: F1 (top) to F5 (bottom)

Variable knob

Acquire key

Display key

Cursor key

VARIABLE

Acquire

Display

Cursor

Activates the functions which appear in the left side of the LCD display.

Increases or decreases values and moves to the next or previous parameter.

Runs cursor measurements (page 61).

Utility key

Help key

Utility

Help

Congures the Hardcopy function (page 115), shows

the system status (page 107), selects the menu language (page 107), runs the self calibration (page

134), congures the probe compensation signal (page

135), and selects the USB host type(page 104).

Shows the Help contents on the display (page 46).

Autoset key

Measure key

Save/Recall key

Hardcopy key

Run/Stop key

Trigger level knob

Trigger menu key

Single trigger key

Measure

Save/Recall

Hardcopy

Run/Stop

TRIGGER

LEVEL

Autoset

Single

Automatically congures the horizontal, vertical, and

trigger settings according to the input signal (page 48).

Congures and runs automatic measurements (page

55).

Saves and recalls images, waveforms, or panel settings (page 109).

Stores images, waveforms, or panel settings to USB (page 115), or prints screen images to a PictBridge compatible printer (page 131).

Runs or stops triggering (page 50).

Sets the trigger level (page 96).

Congures the trigger settings (page 96).

Selects the single triggering mode (page 103).

Trigger force key

Horizontal menu key

FORCE

Acquires the input signal once regardless of the trigger condition at the time (page 103).

Congures the horizontal view (page 85).

Horizontal

Moves the waveform horizontally (page 85).

position knob

TIME/DIV knob

Vertical position

TIME/DIV

Selects the horizontal scale (page 85).

Moves the waveform vertically (page 91).

knob

CH1/CH2 key

CH1

Congures the vertical scale and coupling mode for

each channel (page 91).

VOLTS/DIV

Selects the vertical scale (page 91).

knob

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

terminal.

Ground terminal

Accepts the DUT ground lead to achieve a common ground.

MATH key

MATH

Performs math operations (page 63).

USB port Facilitates transferring waveform data, display images,

and panel settings (page 109).

Probe compensation output

External trigger input

EXT TRIG

Outputs a 2Vp-p, square signal for compensating the probe (page 135) or demonstration.

Accepts an external trigger signal (page 96).

Power switch

Powers the oscilloscope on or off.

Rear Panel

Power cord socket

Fuse socket

USB slave port

Calibration output

Security lock slot

USE ONLY WITH A 250V FUSE

Power cord socket accepts the AC mains, 100 ~ 240V, 50/60Hz.

The fuse socket holds the AC main fuse, T1A/250V.

For the fuse replacement procedure, see page 140.

Accepts a type B (slave) male USB connector for remote control of the oscilloscope (page 104) or to print directly to a PictBridge compatible printer.

Outputs the calibration signal used in vertical scale accuracy calibration (page 134).

Standard laptop security lock slot for ensuring the security of the VDO-2000A.

Display

Waveforms Channel 1: Yellow Channel 2: Blue

Trigger status Trig’d A signal is being triggered

Trig? Waiting for a trigger condition

Input signal frequency

Trigger

Horizontal status Vertical status

Auto Updating the input signal regardless of trigger condi-

STOP Triggering is stopped

For trigger setting details, see page 96.

Updates the input signal frequency (the trigger source signal) in real-time. “< 2Hz” Indicates that the signal frequency is less than the lower frequency limit (2Hz) and thus not accurate.

Shows the trigger source, type, and slope. In case of the Video trigger, shows the trigger source and polarity.

scale.

tions

Setting up the Oscilloscope

Background This section describes how to set up the oscilloscope properly including adjusting

Procedure

the handle, connecting a signal, adjusting the scale, and compensating the probe. Before operating the oscilloscope in a new environment, run these steps to make sure the oscilloscope is functionally stable.

1. Pull both bases of the handle out slightly.

2. Turn to one of the three preset positions.

3. Connect the power cord.

4. Press the power switch. The display will become active in approximately 10 seconds.

5. Reset the system by recalling the factory settings. Press the Save/ Recall key, then Default Setup. For details regarding the factory settings, see page 45.

Save/Recall

Default

Setup

6. Connect the probe between the Channel1 input terminal and probe

compensation signal output (2Vp-p, 1kHz square wave).

7. Set the probe attenuation to x10.

8. Press the Autoset key. A square

waveform will appear in the center of the display. For details on Autoset, see page 48.

9. Press the Display key, then Type and

select the vector waveform type.

10. Turn the adjustment point on the probe to atten the square waveform edge.

Display

Autoset

Type

Vectore

Over Under Compensation Normal Compensation

11. Setting up the oscilloscope is complete. You may continue with the other operations.

Measurement: page 47 Conguration: page 78

4. QUICK REFERENCE

This chapter lists the oscilloscope menu tree, operation shortcuts, built-in help coverage, and default factory settings. Use this chapter as a handy reference to access the oscilloscope functions.

Menu Tree and Shortcuts

Conventions Examples

Normal = Press the functional key for “Normal”

Average

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

= Repeatedly press the functional key for “Average”

Normal→VAR

= Press the functionality key for “Normal”, and then use the Variable knob

Acquire

Normal

Average

Peak

Detect

Delay

Sample Rate

500MS/s

CH1/CH2 key

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

On / Off

Select acquisition mode Normal ~ Peak-Detect

Select average number Average

Turn Delay on/off Delay On

CH1

Coupling

Invert

Off

BW Limit

Off

Voltage

Expand

Center

On / Off

Voltage / Current

Center / Ground

Turn channel on / off CH 1/2 Select coupling mode Coupling Invert waveform Invert Turn bandwidth limit on / off BW Limit

Select probe type

Voltage↔Current

Select probe attenuation VAR

(0.1x~2000x) (1-2-5 step)

Expand type Expand

Cursor key 1/2

Cursor

Source

CH1

- 5.000uS

0.000uV X2

5.000uS

0.000uV

X1X2

∆: 10.00uS

ƒ: 100.0kHz

0.000uV

Cursor key 2/2

Cursor

Source

CH2

123.4mV

12.9mV

Y1Y2

110.5mV

CH1 / 2 / MATH

Turn cursor on/off Cursor

Move X1 cursor

X1 → VAR

Move X2 cursor

X2 → VAR

Move both X1 and X2 cursor

X1X2 → VAR

Switch to Y cursor

X↔Y

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

Display

Type

Vectors

Accumulate

Off

Refresh

Contrast

Full

Autoset key

Autoset

Type

Fit Screen

Undo

Vectors / Dots

On / Off

Fit Screen AC Priority

Select waveform type Type

Waveform accumulate On/Off Accumulate

Refresh accumulation Refresh

Set display contrast

Contrast → VAR

Select display grid

Automatically nd the signal and set the

scale Autoset

Change the Type of Autoset mode.

(available for a few seconds)

Type

Undo Autoset Undo

(available for a few seconds)

Hardcopy key

Hardcopy

→ See Utility key (page 40)

Help key

Help

Turn help mode on/off Help

Horizontal menu key

Window

Zoom

Roll

H Pos Adj

Fine

Reset

Hor Pos

Set / Clear

180.0uS

340.0uS

Fine / CoarseMain

Switch from Horizontal Menu to Horizontal Position Menu. Horizontal MENU

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

Toggle adjustment mode

H Pos Adj

Reset horizontal marker Reset

Set Horizontal marker/delete horizontal marker. HOR

→ Set / Clear

Navigate to previous horizontal marker. Previous

Navigate to next horizontal marker. Next

Math key 1/2 (+/-/x)

MATH

Operation

CH1 + CH2

Position

0.00 Div

Unit / Div

CH1 + CH2 CH1 - CH2 CH1 x CH2 FFT FFT rms

-12div ~ +12div

200mV ~ 10V/div

Math on / off Math

Select math operation type (+ / – / x / FFT / FFT rms) Operation

Set result position

Position →VAR

Math result Volt/Div

Unit/Div→VOLTS/DIV(CH2)

Math key 2/2 (FFT/FFT rms)

MATH

Operation

FFT

Source

CH1

Window

Hanning

Vertical

0.00 Div

Zoom

0.0000Hz

CH1 + CH2 CH1 - CH2 CH1 x CH2 FFT FFT rms

CH1/2

Flattop / Rectangular / Blackman / Hanning

-12div ~ +12div 20 / 10 / 5 / 2 / 1 dB

1 / 2 / 5 / 10 / 20X

Math on / off Math

Select math operation type (+ / – / x / FFT / FFT rms) Operation

Select FFT source channel Source

Select FFT window Window

Select FFT result position

Vertical → VAR

Select vertical scale

Vertical → VOLTS/DIV

Select vertical units Vertical

Select Zoom level

Zoom(X) → VAR

Select Horizontal position

Zoom(Hz) → VAR

Measure key

Measure

Vpp

1:204mV

2: 300mV

Vavg 1: 1.93mV 2: 28.0mV

Frequency

1: 1.000kHz 2: 3.003kHz

Duty Cycle

1: 50.01% 2: 49.88%

Rise Time

1. 76.20us

2. 70.11us

Measure

Source 1

CH1

Source 2

CH2

Voltage

Vpp

View all/Select Measurements

(Voltage/

Time/Delay)

Turn on / off measurement Measure

Select measurement type Voltage/Time/Delay

Select measurement item VAR or Icon(F3) / → VAR

Go back to previous menu Previous Menu

Run/Stop key

Run/Stop

Freeze / unfreeze waveform or trigger Run/Stop

Save/Recall key 1/10

Save/Recall

Default

Setup

Recall

Setup

Recall

Waveform

Recall Image

Display

Refs.

To Recall Setup

To Recall Waveform

To Recall Image

To Display Refs

Save/Recall

Save

Setup

Recall

Waveform

Save

Image

Save

All

CSV Format

Fast

Switch to Save or Recall menu Save/Recall

Recall default setup Default Setup

Change CSV format CSV Format

Save/Recall key 2/10

Recall Setup

Recall

Setup

Source

Memory

Recall

File

Utilities

Memory/USB

(USB only) To File Utilities

Select other menu Recall Setup

Select setup source Source

Recall setup Recall

Go to USB le utilities

File Utilities

→ VAR

To Save Setup

To Save Waveform

To Save Image

To Save All

Fast / Detail

Save/Recall key 3/10

Recall Waveform

Recall

Waveform

Source

Memory

Destination

Recall

File

Utilities

Save/Recall key 4/10

Recall Image

Source

USB

Ref Image

Off

Recall

File

Utilities

Memory/USB

Ref A/B

(USB only) To File Utilities

On / Off

(USB only) To File Utilities

Select other menu Recall Waveform

Select waveform source Source

Select waveform destination

Destination → VAR

Recall waveform Recall

Go to USB le utilities

File Utilities

Select other menu Recall Image

Turn reference image on/off Ref image

Recall waveform Recall

Go to USB le utilities

File Utilities

VAR

Save/Recall key 5/10

Display Refs.

Display

Refs.

Ref. A Off

Ref. B Off

Ref. A On

2.5ms

Save/Recall key 6/10

Save Setup

Save

Setup

Destination

Memory

Save

File

Utilities

On / Off

Memory / USB

(USB only) To File Utilities

Select other menu Save Setup

Turn ref. waveform A on/off Ref.A

Turn ref. waveform A on/off Ref.B

Select other menu Save Setup

Select destination Destination

Save setup Save

Go to USB le utilities

File Utilities

→

VAR

Save/Recall key 7/10

Save Waveform

Save

Waveform

Source

Destination

Memory

Save

File

Utilities

Save/Recall key 8/10

Save Image

Save

Image

Ink Saver

Off

Destination

USB

Save

File

Utilities

CH1/2/Math Ref A/B

Memory USB Normal USB 1M USB 2M / Refs.

(USB only) To File Utilities

On / Off

(USB only) To File Utilities

Select other menu Save Waveform

Select source Source

Select destination Destination

Save waveform Save

Go to USB le utilities

File Utilities

Select other menu Save Image

Turn on / off ink saver Ink Saver

Save all Save

Go to USB le utilities

File Utilities

→VAR

Save/Recall key 9/10

Save All

Save

All

Ink Saver

Off

Destination

USB

Save

File

Utilities

Save/Recall key 10/10

File Utilities

Select

New

Folder

Rename

Delete

On / Off

USB Normal USB 1M / USB 2M

(USB only) To File Utilities

Enter

Character

Back

Space

Save

Select other menu Save All

Turn on/off ink saver Ink Saver

Select destination Destination

→ VAR

Save all Save

Go to USB le utilities

File Utilities

Select le/folder

VAR → Select

Create or rename folder / le

New Folder / Rename VAR

→Enter character / Backspace /

Save / Previous menu

Delete folder / le

Delete

Go to previous menu Previous menu

Trigger key 1/6

Trigger Type Trigger Holdoff

MENU MENU

Type

Edge

Source

CH1

Slope /

Coupling

Mode

Auto

Trigger key 2/6

Video Trigger

Type

Video

Source

CH1

Standard

NTSC

Polarity

Line

Holdoff

40.0ns

Set to

Minimum

CH1/2

NTSC / SECAM / PAL

Field 1 / Field 2 / Line

Select Trigger type or Trigger Holdoff menu Type

Select video trigger type Type

Select trigger source Source

Select video standard Standard

Select video polarity Polarity

Select video eld / line

Line

→ VAR

Trigger key 3/6

Edge Trigger

Type

Edge

Source

CH1

Slope /

Coupling

Mode

Auto

Trigger key 4/6

Pulse Trigger

Type

Pules

Source

CH1

When <

20.0ns

Slope /

Coupling

Mode

Auto

CH1/2Ext/Line

To Slope / Coupling

Auto / Normal

CH1/2/Ext/Line

> / < / = / ≠

20ns ~ 10s

To Slope / Coupling

Auto / Normal

Select edge trigger type Edge

Select trigger source Source

Go to slope/coupling menu (page 39) Slope/Coupling

Select trigger mode Mode

Select pulse trigger type Type

Select trigger source Source

Select pulse trigger condition and pulse width When

→ VAR

Go to slope/coupling menu (page 39) Slope/Coupling

Select trigger mode Mode

Trigger key 5/6

Coupling/Slope

Slope

Coupling

Rejection

Off

Noise Rej

Off

Trigger key 6/6

Trigger Holdoff

Holdoff

40.0ns

Set to

Minimum

AC/DC

LF / HF / Off

On / Off

40ns ~ 2.5s

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

Select Holdoff time VAR

Set to minimum Holdoff time Set to Minimum

Utility key 1/11 (Utility #1)

Utility

Hardcopy

ProbeComp

Language

English

System

Info.

To Hardcopy menu

To Probe Comp menu

English/ Chinese(T) etc

Utility # 2 menu

Utility key 2/11 (Utility #2)

Utility

Go-NoGo

No Go When

Data logging

To Go-NoGo Menu

To Data Logging menu

To Utility #3 menu

Go to hardcopy menu Hardcopy

Go to probe compensation menu ProbeComp

Select language Language

Show system information System Info.

Go to the next Utility menu More

Go to the Go-NoGo menu Go-NoGo

Set the NoGo conditions to inside /outside limits No Go When

Go to the Data Logging Menu Data Logging

Go to the next Utility menu More

Utility key 3/11 (Utility #3)

Calibration

Self CAL

USB Port

Auto Detect

To Self CAL menu

Auto Detect Computer Printer

To Utility #1 menu

Utility key 4/11 (Hardcopy -Save All)

Hardcopy - Save All

Function

Save All

Ink Saver

Off

Mem Leng

USB 1M

CSV Format

Fast

On / Off

USB Normal USB 1M / 2M

Fast / Detail

Enter self calibration Self CAL

Select USB port interface USB Port

Go to the rst Utility menu

Select Hardcopy function Function

Turn on/off Ink saver Ink Saver

Set the memory length Mem Leng

Change CSV format CSV Format

Go to previous menu Previous Menu

Utility key 5/11 (Hardcopy -Printer)

Hardcopy - Printer

Function

Printer

Ink Saver

Off

Page Size

Default

On / Off

Default / 4x6 / A4

Utility key 6/11 (Hardcopy -Save Image)

Hardcopy - Save Image

Function

Save Image

Ink Saver

Off

On / Off

Select Hardcopy function Function

Turn on/off Ink saver Ink Saver

Set default page size Page Size

Go to previous menu Previous Menu

Select Hardcopy function Function

Turn on/off Inksaver Ink Saver

Go to previous menu Previous Menu

Utility key 7/11 (Probe compensation)

Probe compensation

Wave Type

Frequency

Duty Cycle

50%

Default

1kHz

Utility key 8/11 (Go-NoGo)

Edit

Template

Max

Source

W01

Tolerance

0.4%

Save &

Create

Max / Min / Auto

Auto: CH1, CH2 Max|Min: Ref A / Ref B, W01~W15

0.4% ~ 40%

0.4DIV ~ 40DIV

( only) 1k ~ 100k

( only)

5% ~ 95%

To previous menu

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

Switch between templates Template

Select the template source Source

Set the tolerance (% or Divisions)

Tolerance

Save the template Save & Create

Go back to previous menu Previous Menu

→ VAR

Utility key 9/11 (Data Logging 1/2)

Data logging

Off

Source

CH1

Setup

File

Utilities

On / Off

CH1 / CH2

To the Edit menu

(USB only) To File Utilities

To previous menu

Utility key 10/11 (Data Logging 2/2)

Edit

Save

Waveform

Interval

2 secs

Duration

5 mins

Waveform / Image

2 secs ~ 30 mins

5 mins ~ 100 hrs

To previous menu

Utility key 11/11 (Self CAL Menu)

Turn Data Logging On/Off Data logging

Set the logging source Source

Go to the Data Logging Edit menu Setup

Go to the File Utilities menu File Utilities

Go back to previous menu Previous Menu

Save the logs as waveform data or

as image les

Save

Set the logging interval

Interval → VAR

Set the duration of the record log

Duration → VAR

Go back to previous menu Previous Menu

Self Cal.

Vertical

Start Vertical Calibration

Start Vertical Calibration Vertical

Default Settings

Here are the factory installed panel settings which appear when pressing the Save/Recall key → Default Setup.

Acquisition Mode: Normal

Channel Scale: 2V/Div

Coupling: DC BW limit: Off

Cursor Source: CH1 Cursor: Off

Display Type: Vectors Accumulate: Off

Grid: Full

Horizontal Scale: 2.5us/Div

H Pos Adj: Fine

Math Type: + (Add)

Unit/Div: 2V

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

Trigger Type: Edge

Mode: Auto Coupling: DC Noise Rejection: Off

Utility Hardcopy: SaveImage, InkSaver On ProbeComp: Square wave,

Go-NoGo Go-NoGo: Off

When:

Save/Recall

Invert: Off

Probe attenuation voltage: x1

Channel 1 & 2: On

Mode: Main Timebase

Hor Pos: 0

Position: 0.00 Div

Source: Channel1

Slope:

Rejection: Off

1k, 50% duty cycle

Source: CH1

Violating: Stop

Default

Setup

Data Logging Data logging: Off

Setup: Waveform Duration: 5 mins

Built-in Help

Source: CH1

Interval: 2 secs

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

Applicable keys

Acquire

(Vertical) (Horizontal) (Trigger)

CH1 CH2

Display

Measure Save/Recall Hardcopy Run/StopCursor

MATH

Utility Help

Procedure 1. Press the Help key. The display

changes to the Help mode.

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

3. Use the Variable knob to scroll the Help contents up and down.

4. Press the Help key again to exit the Help mode.

Help

Autoset

MENUMENU

Single

FORCE

Help

Acquire

VARIABLE

Help

5. MEASUREMENT

The Measurement chapter describes how to properly observe a signal using the oscilloscope’s basic functions, and how to observe a signal in a detailed manner using some of the advanced functions such as:

Automatic measurements, cursor measurements, and math operations.

Basic Measurements

This section describes the basic operations required in capturing and viewing an input signal. For more detailed operations, see the following chapters.

• Measurements → from page 47

• Conguration → from page 78

Activating a channel

To activate an input channel, press the Channel key, CH1 or CH2. The channel indicator appears at the left side of the display and the channel icon changes accordingly.

CH1 CH2

Channel 1 off Channel 1 on

Channel indicator

Channel icon

De-activating a channel

Using Autoset

Background

To de-activate the channel, press the Channel key twice (once if the channel menu is already selected).

settings to the best viewing conditions, in the following 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

AC Priority Mode or Fit Screen Mode.

AC Priority mode will scale the waveform to the screen removing any DC component.

best scale, including any DC components (offset).

Procedure 1. Connect the input signal to the oscilloscope and press

the Autoset key.

2. The waveform(s) appears in the center of the display.

Before Autoset After Autoset

Undoing the Autoset

To undo the Autoset, press Undo (available for a few seconds).

Undo

Autoset

Undo option

Adjusting the trigger level

If the waveform is still unstable, try adjusting the trigger level up or down by using the Trigger Level knob.

Change Modes To change the type of mode, press Type

(available for a few seconds). The Type icon will change to next type.

Type Fit Screen, AC Priority

The next time the Autoset key is pressed, the new mode will be activated.

LEVEL

Type

AC Priority

Fit Screen AC Priority

Limitation Autoset does not work in the following situation.

• Input signal frequency less than 2Hz

• Input signal amplitude less than 30mV

Running and stopping the trigger

Background In the trigger Run mode, the oscilloscope constantly searches for a trigger

condition and updates the signal onto the display when thecondition is met. In the trigger Stop mode, the oscilloscope stops triggering and thus the last acquired waveforms stay in the display. The trigger icon at the top of the display

changes into Stop mode. Pressing the Trigger Run/Stop key switches between the Run and Stop mode.

Trigger Run mode Trigger Stop mode

Run/Stop

Waveform operation

Waveforms can be moved or scaled in both the Run and Stop mode. For details, see page 85 (Horizontal position/scale) and page 91 (Vertical position/scale).

Changing the horizontal position and scale

For more detailed congurations, see page 85.

Setting the horizontal position

The horizontal position knob moves the waveform left or right.

The position indicator moves along with thewaveform and the distance from the center point is displayed as the offset in the upper side of the display.

Horizontal offset

Position indicator

Selecting the horizontal scale

Range 1ns/Div ~ 10s/Div, 1-2.5-5 increment

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

TIME/DIV

Horizontal scale: 50us/div Horizontal scale: 250us/div

Changing the vertical position and scale

For more detailed conguration, see page 91.

Set vertical position

Select vertical scale

To move the waveform up or down, turn the vertical

position knob for each channel.

As the waveform moves, the vertical position of the cursor appears at the bottom

left corner of the display.

Run/Stop mode The waveform can be moved vertically in

both Run and Stop mode.

To change the vertical scale, turn

VOLTS/DIV

the VOLTS/DIV knob; left (down)

or right (up).

Range 2mV/Div ~ 10V/Div, 1-2-5 increments

The vertical scale indicator for each channel on the bottom left of the display

changes accordingly.

Using the probe compensation signal

Background This section introduces how to use

the probe compensation signal for general usage, in case the DUT signal is not available or to get a second signal for comparison. For probe compensation details, see page 135.

Note that the frequency accuracy and duty factor are not guaranteed. Therefore the signal should not be used for reference purpose.

Waveform type

View the probe compensation

1. Connect the probe between the compensation signal output and Channel input.

waveform

2. Press the Utility key.

3. Press ProbeComp.

Square waveform used for probe

compensation. 1k ~ 100kHz, 5% ~ 95%.

Demonstration signal for showing the effects of peak detection. See page 78 for peak detection mode details.

Utility

ProbeComp Menu

4. Press Wave Type repeatedly to

select the wave type.

Wave Type

Probe compensation

5. (For only) To change

thefrequency, press Frequency and use the Variable knob.

Range 1kHz ~ 100kHz

6. (For only) To change

the duty cycle, press Duty Cycle and use the Variable knob.

Range 5% ~ 95%

For probe compensation details, see page 135.

Frequency

1 K

VARIABLE

Duty Cycle

50%

VARIABLE

Automatic Measurements

The automatic measurement function measures input signal attributes and updates them in the display. Up to 5 automatic measurement items can be updated at any one time on the side menus. All automatic measurement types can be displayed on screen if necessary.

Measurement items

Overview Voltage type Time type Delay type

Voltage measurement items

Vpp Vmax Vmin Vamp Vhi Vlo Vavg Vrms ROVShoot FOVShoot RPREShoot FPREShoot Vpp Difference between positive

Vmax

Vmin Negative peak voltage.

Frequency Period RiseTime FallTime +Width

-Width Dutycycle

and negative peak voltage

(=Vmax − Vmin)

Positive peak voltage.

FRR FRF FFR FFF LRR LRF LFR LFF

Vamp Difference between global

Vhi

high and global low voltage

(=Vhi − Vlo)

Global high voltage.

Vlo Global low voltage.

Vavg Averaged voltage of the rst cycle.

Vrms RMS (root mean square) voltage.

ROVShoot Rise overshoot voltage.

FOVShoot Fall overshoot voltage.

RPREShoot Rise preshoot voltage.

FPREShoot Fall preshoot voltage.

Time measurement items

Delay measurement items

Freq Frequency of the waveform.

Period Waveform cycle time

Risetime

Falltime

+Width

–Width Negative pulse width.

Duty Cycle Ratio of signal pulse

FRR

(=1/Freq).

Rising time of the pulse

(~90%).

Falling time of the pulse

(~10%).

Positive pulse width.

compared with whole cycle =100x (Pulse Width/Cycle)

Time between:

Source 1 rst rising edge and Source 2 rst rising edge

FRF

FFR

FFF

LRR

LRF

LFR

LFF

Automatic measurement gating

Time between:

Source 1 rst rising edge and Source 2 rst falling edge

Time between:

Source 1 rst falling edge and Source 2 rst rising edge

Time between:

Source 1 rst falling edge and Source 2 rst falling edge

Time between:

Source 1 rst rising edge and

Source 2 last rising edge

Time between:

Source 1 rst rising edge and

Source 2 last falling edge

Time between:

Source 1 rst falling edge and

Source 2 last rising edge

Time between:

Source 1 rst falling edge and

Source 2 last falling edge

Background Automatic measurements can be restricted to a specic area (gating). When

Turn gating on

cursors are turned on, the area between the cursors is used for automatic measurements. When cursors are turned off, measurements are derived from all the points that are displayed on screen.

1. Turn on cursors to enable gated automatic measurements.

page 61

2. Press the Measure key.

3. The measurement results appear on the menu bar, constantly updated. All

measurements are derived from the cursor positions. See Automatically measuring the input signals for more details (page 58).

Horizontal Cursor

Turn gating off 4. Turn off cursors to turn off gated automatic

measurements.

Automatically measuring the input signals

Measure

page 61

Viewing the measurement result

1. Press the Measure key.

2. The measurement results appear on the menu bar,

constantly updated. 5 measurement slots (F1 to F5) can be customized.

Measure

Editing a measurement item

3. Press the corresponding menu key (F1~F5)

to select the measurement slot to be edited.

4. The editing menu appears.

Voltage

Vpp

Change measurement item

Change measurement source

5. Use the Variable knob to select a different

measurement item.

6. Press Source 1 repeatedly to change Source1

from CH1 to CH2 or MATH.

Range CH1, 2, Math

VARIABLE

Source 1

CH1

7. Press Source 2 repeatedly to change the channel for Source2.

Source 2

CH2

Range CH1, 2, Math

View all measurements

8. Press F3 to view all measurement items.

Voltage

Vpp

9. All the measurements appear in the center of the screen.

10. Press F3 again to return.

Note All the editing operations can still be performed when viewing all the measurement

items.

11. Press Previous Menu to conrm the item selection and to go back to the measurement results view.

Cursor Measurements

Cursor lines, horizontal or vertical, show the precise position of the input waveforms or the math operation results. The horizontal cursors can track time, voltage/current* and frequency, whilst the vertical cursors can track voltage/current*. All measurements are updated in real-time. *probe type dependant (page 94).

Using the horizontal cursors

Procedure 1. Press the Cursor key. The cursors appear in

Cursor

the display.

2. Press X↔Y to select the horizontal (X1&X2) cursor.

3. Press Source repeatedly to select the source channel. Range CH1, 2, MATH

Source 1

CH1

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

Parameters X1 Time position of the left cursor. (relative to zero)

X2 Time position of the right cursor. (relative to zero)

X1X2 The difference between the X1 and X2.

Δ: us The time difference between X1 and X2.

f: Hz The time difference converted to frequency.

V/A The voltage/current difference from X1 and X2.

Moving the horizontal cursors

M1:dB Position of the left cursor in dB.

M2:dB Position of the right cursor in dB.

Δ: dB The dB difference between M1 and M2.

Div: The frequency per division.

To move the left cursor, press X1 and then use the Variable knob.

To move the right cursor, press X2 and then use the Variable knob.

-5.000uS

0.000uV

5.000uS

0.000uV

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

Remove cursors Press Cursor to remove the onscreen cursors.

Using the vertical cursors

Procedure 1. Press the Cursor key.

2. Press X↔Y to select the vertical (Y1&Y2)

cursor.

3. Press Source repeatedly to select the

source channel. Range CH1, 2, MATH

4. The cursor measurement results will appear in the menu.

Parameters

Y1 Voltage level of the upper cursor

Y2 Voltage level of the lower cursor

Cursor

Source

CH1

Y1Y2 The difference between the upper and lower cursor

V/A The voltage/current difference (Y1-Y2).

Moving the vertical cursors

Remove cursors Press Cursor to remove the onscreen

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

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

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

123.4mV

12.9mV

Y1Y2

10.5mV

Cursor

cursors.

Math Operations

The Math operations can add, subtract, multiply or perform FFT/FFT RMS on the input waveforms. The resulted waveform can be measured using the cursors, and saved or recalled just like normal input signals.

Overview

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

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

Multiplication (×) Multiplies CH1 and CH2.

FFT Performs a FFT calculation on a signal. Four types of FFT windows are available:

Hanning, Flattop, Rectangular, and Blackman.

FFT RMS Performs a FFT RMS calculation on a signal. RMS is similar to FFT, however

the amplitude is calculated as RMS and not dB. Four types of FFT windows are available: Hanning, Flattop, Rectangular, and Blackman.

Hanning FFT window

Frequency resolution Good

Amplitude resolution Not good

Suitable for.... Frequency measurement on

Flattop FFT window

Frequency resolution Not good

Amplitude resolution Good

Suitable for.... Amplitude measurement on

Rectangular FFT window

Frequency resolution Very good

Amplitude resolution Bad

Suitable for.... Single-shot phenomenon (this

Blackman FFT window

Frequency resolution Bad

Amplitude resolution Very good

Suitable for.... Amplitude measurement on

Adding, subtracting or multiplying signals

periodic waveforms

mode is the same as having no window at all)

periodic waveforms

Procedure 1. Activate both CH1 and CH2.

2. Press the Math key.

CH1 CH2

MATH

3. Press Operation repeatedly to select addition (+), subtraction (–) or multiplication (×).

4. The math measurement result appears in the display.

Operation

CH1 + CH2

Unit / Div

5. To move the math result vertically, use the Variable knob. The position will be displayed in Posistion.

6. To clear the math result from the display, press the Math key again.

Using the FFT function

Procedure 1. Press the Math key.

2. Press Operation repeatedly to select FFT or FFT RMS

3. Press Source repeatedly to select the source channel.

4. Press Window repeatedly to select the FFT window type.

VARIABLE

Position

0.00 Div

MATH

Operation

FFT

Source

CH1

Window Hanning

5. The FFT result appears. The horizontal scale changes from time to frequency,

and the vertical scale from voltage to dB or RMS.

6. To move the FFT waveform vertically,

press Vertical repeatedly until Div is selected. Use the Variable knob to change the vertical scale.

Vertical

0.00 Div

VARIABLE

Range –12.00 Div ~ +12.00 Div

7. To select the vertical scale of an FFT

waveform, press Vertical repeatedly until dB is selected. Use the Variable knob to change the vertical scale.

Vertical

1 dB

0.00 Div

VARIABLE

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

8. To select the vertical scale of an FFT

VOLTS/DIV

rms waveform, use the VOLTS/DIV knob to change the vertical scale. The scale will be shown in the Vertical soft-key.

Range Volts/Div

9. To zoom in on the FFT/FFT rms

waveform, press Zoom repeatedly until X is selected. Use the Variable knob to change the Zoom level.

Zoom

0.0000Hz

VARIABLE

Range 1/2/5/10/20X

10. To move the FFT/FFT rms waveform horizontally, press Zoom repeatedly until Hz is selected. Use the Variable knob to change the horizontal position.

Zoom

0.0000Hz

VARIABLE

Range 0~50.000MHz

11. To clear the FFT result from the display,

MATH

press the Math key again.

Go No-Go Testing

Overview

Background Go-NoGo testing checks if a waveform conforms to a user-specied

Settings Item Default Details

maximum and minimum boundary (template). The testing can be set to stop or continue each time the template has or has not been violated by the input waveform.

NoGo criteria: When inside

Inside Page 68

or outside the boundary

Source Channel 1 Page 68

Test continue or stop when

Stop Page 69

NoGo occurs

Boundary (template) – selects

Auto (0.4%) Page 69 the minimum and maximum boundaries (template) from a single waveform

Run Tests Page 73

Edit: NoGo When

Procedure 1. Press the Utility key.

2. Press the More key.

3. Press No Go When repeatedly to select the NoGo conditions.

NoGo when the waveform is inside the boundary (template)

NoGo when the waveform is outside of the boundary (template)

Edit: Source

Procedure 1. Press the Utility key.

2. Press the More key.

3. Press the Go-NoGo Menu key.

4. Press Source repeatedly to select the source channel (CH1 or CH2).

Utility

NoGoWhen

Utility

Go-NoGo

Source

CH1

Edit: NoGo Violation Conditions

Procedure 1. Press the Utility key.

2. Press the More key.

3. Press the Go-NoGo Menu key.

4. Press Violating repeatedly to select the NoGo conditions.

Stop Stops the test when the NoGo conditions have been met.

Continue The tests continue even when the NoGo conditions have been met.

Utility

Go-NoGo

Violating

Stop

Edit: Template (boundary)

Background The NoGo template sets the upper and lower amplitude boundary. Two methods

are available: Min/Max and Auto. Min/Max Selects the upper boundary (Max) and lower boundary

(Min) as separate waveforms, from the internal memory. The upper boundary is saved to Ref A, the lower boundary is saved to Ref. B.

Advantage: The template shape and distance (allowance) between the source signal are fully customizable.

Disadvantage: The waveforms (templates) have to be stored internally prior to this selection.

Auto Creates the upper and lower boundary (template)

from the source signal, not from an internally stored waveform.

Advantage: No need to store the waveforms prior to this selection.

Disadvantage: The template shape is proportional to the source signal. The distance (allowance) between the source signal and the upper and lower template is the same.

Procedure 1. The template is based on the source signal. Ensure the source signal appears

on the display.

2. Press the Utility key.

Utility

3. Press the More key.

4. Press the Go-NoGo Menu key.

5. Press the Template Edit key.

6. Press Template repeatedly to select the

upper (Max) or lower (Min) boundaries.

Go - NOGO

Template

Edit

Template

Max

7. Press Source and use the Variable knob to select the waveform template.

Max Waveform A: Ref A, W01~W15 Min Waveform B: Ref B, W01~W15

8. Press Position and use the Variable knob to set the waveform amplitude.

9. Repeat steps 5-7 for the other template setting (Max or Min).

10. When both Max and Min templates have

been congured, press Save & Create to

save the templates.

Source

W01

VARIABLE

Source

W01

VARIABLE

Save& Create

Max: Waveform A

Position

Min: Waveform B

Auto 1. The template is based on the source signal. Ensure the source signal appears

on the display.

2. Press the Utility key. Utility

3. Press the More key.

4. Press the Go-NoGo Menu key.

5. Press the Template Edit key.

6. Press Template repeatedly to select the

Auto template.

7. Press Source and use the Variable knob

to select the template source.

Source CH1, CH2

8. Press Tolerance repeatedly to choose

the tolerance units, % or Div. Use the

Variable knob to set the tolerance. The tolerance is for both the horizontal and vertical axis.

% 0.4% ~ 40.0%

Go - NOGO

Template

Edit

Template

Auto

Source

CH1

VARIABLE

Tolerance

0.4%

VARIABLE

Div 0.04 Div ~ 4.0 Div

9. When the Auto template has been

congured, press Save & Create to save

the template.

Auto template

Run Go-NoGo Tests

Save& Create

Tolerance

Source waveform

Procedure 1. Press the Utility key.

2. Press the More key.

3. Press the Go-NoGo Menu key.

Ensure the source signal and boundary templates appear on the screen.

Utility

Go - NOGO

4. Press Go-NoGo. The test starts and

stops according to the conditions set on page 68, 69. To stop the test that has already started, press Go-NoGo again.

5. The test results appear in the Ratio soft-

key. The numerator denotes the total number of failed tests. The denominator denotes the total number of tests.

Numerator: Number of “failed“ tests. Denominator: Total number of tests.

Go - NOGO

Ratio:

2BMP 9BMP

Data Logging

Overview

Background The Data logging function allows you to log data or a screen image

over timed intervals for up to 100 hours to a USB ash drive.

The data or images are stored to a USB ash drive in a directory

named LogXXXX. LogXXXX is incremented each time the data logging function is used.

The les saved in the LogXXXX directory are named DSXXXX. CSV, or DSXXXX.BMP for data or image les, respectively. At each timed interval data or an image le is saved and the le number incremented. For example, DS0000 is the rst logged data, DS0001

is the second and so on.

Edit: Source

Procedure 1. Press the Utility key.

Utility

2. Press the More key.

3. Press the Data logging Menu key.

4. Press Source repeatedly to select the source channel (CH1 or CH2).

Data logging

Source

W01

Edit: Setup Parameters

Background The logging function must set the type of data that will be logged (waveform/

Procedure

image), the capture interval time and the duration of the data logging.

1. Press the Utility key.

Utility

2. Press the More key.

3. Press the Data logging Menu key.

Data logging

4. Press the Setup key.

Setup

5. Press Save repeatedly to log data or

screen images.

6. Press Interval and use the Variable knob

to select the interval time.

Interval 2 secs~ 2min (duration = 5 min)

time 2 secs~ 5 min (duration 5~ 30 min)

2 secs~ 30 min (duration 30+ min)

7. Press Duration and use the Variable

knob to set the duration time.

Duration 5 mins ~ 100 hours

Save

Waveform

Interval

2 mins

VARIABLE

Duration

5 mins

VARIABLE

8. Press Previous menu to return to the

Data logging menu. Data logging is now ready to begin.

Run Data logging

Background Ensure the data source (page 75) and data logging setup has been set (page 75).

Procedure

1. Insert a USB ash drive into the USB front panel port.

2. Press the Utility key.

3. Press the More key.

4. Press the Data logging Menu key.

5. Press Data logging to turn data logging

On. Data/image les start logging to the USB ash drive automatically. To stop

the Data logging, press the Data logging key again.

Utility

Data logging

6. CONFIGURATION

The Conguration chapter describes how to congure panel settings to make measurements and

observations suited to the application needs.

Acquisition

The acquisition process samples the analog input signals and converts them into digital format for internal processing. You may select the normal, average, or peak detect acquisition mode.

Selecting the acquisition mode

Procedure 1. Press the Acquire key.

2. Select the acquisition mode

between Normal, Average and Peak Detect.

Range Normal All of the acquired data is used to

draw the waveform.

Acquire

Normal

Average

Peak

Detect

Average Multiple data is averaged to form a

waveform. This mode is useful for drawing a noise-free waveform. To select the number, press Average repeatedly. Average number: 2, 4, 8, 16, 32, 64, 128, 256

Peak detect To activate the Peak detect mode, press

Peak-Detect. Only the minimum and maximum value pairs for each acquisition interval (bucket) are used. This mode is useful for catching abnormal glitches in a signal.

Peak detect effect using the probe comp. waveform

1. One of the probe compensation waveforms can demonstrate the peak detection mode. Connect the probe to the probe compensation output.

2. Press the Utility key.

3. Press ProbeComp.

4. Press Wave Type and select the waveform.

5. Press the Autoset key. The oscilloscope positions the waveform in the center of the display.

6. Press the Acquire key

Utility

ProbeComp

Wave Type

Autoset

Acquire

7. Press Normal.

Normal

8. Press Peak-Detect and see that a spike

noise is captured.

Peak

Detect

Example The peak detect mode reveals the occasional glitch.

Normal mode Peak detect mode

Selecting Delay mode

Background When delay time is ON, the displayed output is delayed for a dened amount of

Delay On With Delay On the expansion point and trigger point become separated by the

time from the trigger point. Using the delay function is useful for observing an area of the waveform that occurs some time after the trigger point.

amount of delay time. As the delay time is increased the trigger point moves left from the expansion point. When the horizontal scale is adjusted, the waveform expands from the expansion point, not the trigger point.

Delay Off With Delay Off the expansion point and trigger point are always in the same

position. Thus when the horizontal scale is adjusted, the waveform expands from the trigger point.

Procedure 1. Press the Acquire key.

2. Press Delay On/Off to toggle Delay On/ Off.

3. Use the Horizontal Position knob to increase or decrease the delay time when Delay is set to On.

4. Adjust the horizontal scale to zoom into the waveform.

Acquire

Delay

TIME/DIV

Real time vs Equivalent time sampling mode

Background The oscilloscope automatically switches between two sampling modes, Real-time

Real-time sampling

Equivalent-time sampling

and Equivalenttime, according to the number of active channels and sampling rate.

Once sampled data is used to reconstruct a single waveform. Short-time events might get lost if the sampling rate gets too high. This mode is used when the sampling rate is relatively low (1GSa/s or lower).

Multiple numbers of sampled data are accumulated to reconstruct a single waveform. ETS restores more waveform detail but takes longer to update the waveform. This mode is used when the sampling rate becomes higher than 1GSa/s. The maximum equivalent-time sampling rate is 25GSa/s.

Display

The Display section describes how to congure the display settings:

drawing type, waveform accumulation, contrast adjustment, and grid settings.

Selecting vector or dot drawing

Procedure 1. Press the Display key.

2. Press Type repeatedly to select the waveform drawing.

Display

Type

Vectors

Types Dots Only the sampled dots are displayed.

Vectors The sampled dots are connected by lines.

Accumulating the waveform

Background Accumulation preserves the old waveform drawings and overwrites new

Procedure

waveforms on top of it. It is useful for observing waveform variation.

1. Press the Display key.

2. Press Accumulate on the waveform accumulation.

Display

Accumulate

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

Refresh

Example

Accumulation off Accumulation on

Adjusting the display contrast

Procedure 1. Press the Display key.

2. Press Contrast.

Turn the Variable knob left to lower the

Contrast

VARIABLE

contrast (dark display) or right to raise the contrast (bright display).

Selecting the display grid

Procedure 1. Press the Display key.

2. Press the grid icon repeatedly to select

the grid.

Parameters Shows the full grid.

Full

Shows the outer frame and X/Y axis.

Shows only the outer frame.

Display

Horizontal View

The Horizontal view section describes how to congure the horizontal scale, position, waveform

update mode, window zoom, and X-Y mode.

Moving the waveform position horizontally

Procedure The horizontal position knob moves the waveform left or

right. The position indicator at the top of the display shows the center and current position.

Center position Moving right

Selecting the horizontal scale

Select horizontal scale

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

Range 1ns/Div ~ 50s/Div, 1-2.5-5-10 increment

The timebase indicator at the bottom of the display updates the current horizontal scale.

TIME/DIV

Selecting the waveform update mode

Background The display update mode is switched automatically or manually according to the

horizontal scale.

Main mode Updates the whole displayed waveform at once. The main mode is automatically

Roll mode Updates and moves the waveform gradually from the right side of the display

Selecting the Roll mode manually

selected when the horizontal scale (timebase) is fast.

Horizontal scale ≤100ms/div

Trigger All modes available

to the left. The Roll mode is automatically selected when the horizontal scale (timebase) is 50ms or slower. When in the Roll mode, an indicator appears at the bottom of the display. When in roll mode the record length is 2M (1 channel) or 1M (2 channel). Main mode Roll mode

Timebase ≥50ms/div (≤1.25MS/s) Trigger Auto mode only

1. Press the Horizontal menu key.

2. Press Roll. The horizontal scale automatically

becomes 50ms/div and the waveform starts scrolling from the right side of the display (If the

Roll

oscilloscope is already in the Roll mode, there will be no change).

Zooming the waveform horizontally

Procedure/

1. Press the Horizontal Menu key.

range

2. Press Window.

3. Use the horizontal position knob to move the zoom range sideways, and TIME/DIV knob to change the zoom range width.

The width of the bar in the middle of the display is the actual zoomed area. Zoom range 1ns ~ 25s

4. Press Window Zoom. The specied range gets zoomed.

Example

Setting the zoom width Zooming in

Zooming width

Window

TIME/DIV

Window

Zoom

Viewing waveforms in the X-Y mode

Background The X-Y mode compares the voltage of Channel 1 and Channel 2 waveforms in a

single display. This mode is useful for observing the phase relationship between the two waveforms.

Procedure

1. Connect the signals to Channel 1 (X-axis)

and Channel 2 (Y-axis).

2. Make sure both Channel 1 and 2 are

CH1 CH2

activated.

3. Press the Horizontal key.

4. Press XY. The display shows two

Adjusting the X-Y mode waveform

waveforms in X-Y format; Channel 1 as X-axis, Channel 2 as Y-axis.

Horizontal position CH1 Position knob Horizontal scale CH1 Volts/Div knob Vertical position CH2 Position knob Vertical scale CH2 Volts/Div knob

Example

Horizontal Adjustment Menu

Background The horizontal adjustment menu allows markers to be set at different times

relative to the Horizontal position marker at 0 seconds. Each marker is linked to the mark directly before and after (in time). There can be up to 30 markers linked together.

1. Press the Horizontal menu key twice to

MENU MENU

enter the horizontal adjustment menu

2. Press H Pos Adj to toggle between coarse

and ne adjustments.

H Pos Adj

Fine

3. Adjust the horizontal position with the horizontal position knob.

Set marker 4. Press Set/Clear to create a marker at the

current horizontal position.

Delete marker 5. If there is already a marker at the current

horizontal position press Set/Clear to delete the current marker.

Reset horizontal position

6. Press Reset to reset the horizontal position to 0 seconds when the trigger is running, or to the last position before the trigger was

Set / Clear

180.0uS

Set / Clear

180.0uS

Reset

Hor Pos

stopped.

Navigate markers

7. Press Previous to go to the previous

marker.

180.0uS

8. Press Next to go to the next marker.

Position

Indicator Marker

340.0uS

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 or down, turn the

vertical position knob for each channel.

Selecting the vertical scale

Procedure To change the vertical scale, turn the VOLTS/

DIV knob; left (down) or right (up).

Range 2mV/Div ~ 10V/Div, 1-2-5 increments

VOLTS/DIV

Selecting the coupling mode

Procedure 1. Press the Channel key.

2. Press Coupling repeatedly to select the coupling mode.

Range DC coupling mode. The whole

portion (AC and DC) of the signal appears on the display.

Ground coupling mode. The display shows only the zero voltage level as a horizontal line. This mode is useful for measuring the signal amplitude with respect to the ground level.

CH1

Coupling

Expand Vertical Scale Center / Ground

AC coupling mode. Only the AC portion of the signal appears on the display. This mode is useful for observing AC waveforms mixed with DC signal.

Background Normally when the vertical scale is increased, the scaled image is centered from

ground. However a signal with a voltage bias could be obscured when the vertical scale is increased. The Expand Center function expands the image from the center of the signal, rather than ground.

Expand Ground

Position Indicator

Expand Center

Position Indicator

Procedure 1. Press the Channel key.

CH1

2. Press F5 to toggle between Expand Center and Expand Ground.

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

4. The vertical scale indicator on the bottom left of the display changes accordingly.

Inverting the waveform vertically

Procedure 1. Press the Channel key.

2. Press Invert. The waveform becomes inverted (upside down) and the Channel indicator in the display shows a down arrow.

Original Inverted

Expand

Center

VOLTS/DIV

CH1

Invert

Off

Limiting the waveform bandwidth

Background Bandwidth limitation puts the input signal into a 20MHz (−3dB) low-pass lter. This

function is useful for cutting off high frequency noise to see the clear waveform shape.

Procedure 1. Press the Channel key.

2. Press BW Limit to turn on or off the limitation.

When turned on, the BW indicator appears next to the Channel indicator in the display.

CH1

BW Limit

Off

Example BW Limit Off BW Limit On

Selecting the probe attenuation level

Background The probe can be set to either voltage or current. A signal probe has an

attenuation switch to lower the original DUT signal level to the oscilloscope input range, if necessary. The probe attenuation selection adjusts the vertical scale

so that the voltage or current level on the display reects the real value, not the

attenuated level.

Procedure 1. Press the Channel key.

CH1

2. Press F4 repeatedly to select voltage or current probes.

3. Use the variable knob to edit the voltage or

Probe

VARIABLE

current attenuation..

4. The voltage/current scale in the channel indicator changes accordingly. There is no change in the waveform shape.

Range 0.1X~2000X (1-2-5 steps)

Note The attenuation factor adds no inuence on the real signal; it only changes the

voltage/current scale on the display.

Trigger

The Trigger function congures the conditions by which the oscilloscope captures the incoming

signals.

Trigger type

Edge Triggers when the signal crosses an amplitude threshold in either positive or

negative slope.

Video Extracts a sync pulse from a video format signal and triggers on a specic line

Pulse Triggers when the pulse width of the signal matches the trigger settings.

Indicators Edge / Pulse Video

or eld.

(CH1, Edge, Rising edge, DC coupling)

(CH1, Video, Positive polarity, NTSC standard)

Trigger parameter

Trigger source CH1, 2 Channel 1, 2 input signals

Line AC mains signal

Ext External trigger input

signal

Trigger mode Auto The oscilloscope updates the input signal regardless of the

trigger conditions (if there is no trigger event, the oscilloscope generates an internal trigger). Select this mode especially when viewing rolling waveforms at a slow timebase.

EXT TRIG

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

Single The oscilloscope acquires the input

SINGLE

signals once when a trigger event occurs, then stops acquiring.

Pressing the Single key again will repeat the process. The Single trigger status appears in the upper right corner of the display. (Searching) (Triggered)

Normal The oscilloscope acquires and updates the input signals only

when a trigger event occurs. The Normal trigger status appears in the upper right corner of the display. (Searching) (Triggered)

Holdoff The holdoff function denes the waiting period before the VDO-2000A starts trig-

gering again after a trigger point. The Holdoff function ensures a stable display.

Video standard (video trigger)

NTSC National Television System Committee

PAL Phase Alternative by Line

SECAM SEquential Couleur A Mémoire

Sync polarity (video trigger)

Video line

Selects the trigger point in the video signal.

Positive polarity

Negative polarity

(video trigger)

eld 1 or 2

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

Pulse condition

Sets the pulse width (20ns ~ 10s) and the triggering condition.

(pulse trigger)

> Longer than = Equal to

< Shorter than ≠ Not equal to

Trigger slope

Triggers on the rising edge.

Triggers on the falling edge.

Trigger coupling AC

Frequency

rejection

Noise rejection Rejects noise signals. Trigger level

LEVEL

Triggers only on AC component.

Triggers on AC + DC component.

Puts a high-pass lter and rejects the frequency below 50kHz.

Puts a low-pass lter and rejects the frequency above 50kHz.

Using the trigger level knob moves the trigger point up or down.

Conguring Holdoff

Background The Holdoff function denes the waiting period before VDO-2000A starts

triggering again after the trigger point. The holdoff function is especially useful for waveforms with two or more repetitive frequencies or periods that can be triggered.

Panel operation 1. Press the Trigger menu key twice.

2. To set the Holdoff time, use the Variable knob.

The resolution depends on the horizontal scale. Range 40ns~2.5s

MENU MENU

VARIABLE

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VOLTCRAFT VDO-2072A, VDO-2152A, VDO-2102A User guide

Specifications and Main Features

Frequently Asked Questions

User Manual