GW Instek GDS-1000A-U User Manual

Digital Storage Oscilloscope

GDS-1000A-U Series

USER MANUAL

GW INSTEK PART NO. 82DS-112AUEC1

ISO-9001 CERTIFIED MANUFACTURER

May 2014 edition

This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may be photocopied, reproduced or translated to another language without prior written consent of Good Will Corporation.

The information in this manual was correct at the time of printing. However, Good Will continues to improve its products and therefore reserves the right to change the specifications, equipment, and maintenance procedures at any time without notice.

Good Will Instrument Co., Ltd. No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

TABLE OF CONTENTS

Table of Contents

SAFETY INSTRUCTIONS .................................. 8

Safety Symbols ....................................................................... 8

Safety Guidelines .................................................................... 9

Power cord for the United Kingdom .................................... 12

GETTING STARTED ........................................ 13

Main Features ................................................................... 13

Panel Overview .................................................................. 15

Front Panel ........................................................................... 15

Rear Panel ............................................................................. 19

Display .................................................................................. 20

Setting up the Oscilloscope ............................................... 21

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

GDS-1000A-U Series User Manual

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 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

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

TABLE OF CONTENTS

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

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

Probe attenuation level and type ......................................... 94

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

Trigger type ........................................................................... 96

Trigger parameter ................................................................. 96

Configuring Holdoff ............................................................. 98

Configuring the edge trigger ................................................ 99

Configuring the video trigger ............................................. 100

Configuring the pulse width trigger ................................... 101

Manually triggering the signal ........................................... 103

Rear Panel USB Port Interface ......................................... 104

Remote Control Interface ................................................ 105

GDS-1000A-U Series User Manual

System Settings ............................................................... 107

Viewing the system information ........................................ 107

Selecting the language ....................................................... 107

SAVE/RECALL .............................................. 109

File Structures ................................................................. 109

Display image file format ................................................... 109

Waveform file format ......................................................... 109

Setup file format ................................................................ 112

Using the USB file 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

MAINTENANCE ........................................... 131

Vertical Resolution Calibration ........................................ 131

Probe Compensation ....................................................... 132

FAQ .............................................................. 134

The input signal does not appear in the display. .............. 134

I want to remove some contents from the display. .......... 134

The waveform does not update (frozen). .......................... 135

The probe waveform is distorted. ...................................... 135

Autoset does not catch the signal well. ............................. 135

I want to clean up the cluttered panel settings. ................ 135

The saved display image is too dark on the background. . 135

The accuracy does not match the specifications. ............. 136

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

............................................................................................ 136

TABLE OF CONTENTS

APPENDIX .................................................... 137

Fuse Replacement ........................................................... 137

GDS-1000A-U Series Specifications ................................. 138

Model-specific specifications ............................................. 138

Common specifications ..................................................... 139

Probe Specifications ........................................................ 141

GDS-1072A-U Probe ........................................................... 141

GDS-1102A-U Probe ........................................................... 141

GDS-1152A-U Probe ........................................................... 142

Dimensions ..................................................................... 143

EC Declaration of Conformity .......................................... 144

INDEX .......................................................... 145

GDS-1000A-U Series User Manual

WARNING

Warning: Identifies conditions or practices that could result in injury or loss of life.

CAUTION

Caution: Identifies conditions or practices that could result in damage to the oscilloscope or to other objects or property.

DANGER High Voltage

Attention: Refer to the Manual

Protective Conductor Terminal

Earth (Ground) Terminal

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.

SAFETY INSTRUCTIONS

Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased.

General Guideline

CAUTION

 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 fire 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 qualified technician.

(Measurement categories) EN 61010-1:2001 specifies the measurement categories and their requirements as follows. The GDS-1000A-U 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.

Safety Guidelines

GDS-1000A-U Series User Manual

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.

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 the oscilloscope

 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.

Operation Environment

 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

SAFETY INSTRUCTIONS

(Pollution Degree) EN 61010-1:2001 specifies 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 influence.

 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, non-

conductive 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

Disposal

Do not dispose this instrument as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Please make sure discarded electrical waste is properly recycled to reduce environmental impact.

GDS-1000A-U Series User Manual

Green/ Yellow:

Earth

Blue:

Neutral

Brown:

Live (Phase)

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:

As the colours of the wires in main leads may not correspond with the coloured marking identified 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.

GETTING STARTED

Model name

Frequency bandwidth

Input channels

GDS-1072A-U

DC – 70MHz (–3dB)

GDS-1102A-U

DC – 100MHz (–3dB)

GDS-1152A-U

DC – 150MHz (–3dB)

Performance

 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

Features

 5.7 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

GETTING STARTED

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

Main Features

GDS-1000A-U Series User Manual

 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

GETTING STARTED

LCD Display

Function keys

VARIABLE knob

Menu keys

Trigger LEVEL knob

Trigger keys

Ground Terminal

CH1 terminal

USB port CH2

terminal

Probe compensation output

EXT TRIG terminal

Power switch

Horizontal POSITION knob

Horizontal MENU key

TIME/DIV knob

CH1/CH2/ MATH keys

Vertical POSITION knob

VOLTS/DIV knob

VOLTS/DIV VOLTS/DIV TIME/DIV

CH 1 MATH CH 2 MENU MENU

Acquire

Display

Utility Help

Run/Stop

VARIABLE

FORCE

Autoset

Cursor

SINGLE

Hardcopy

Measure

Save/Recall

LEVEL

VERTICAL HORIZONTAL TRIGGER

CH1

CAT300V

MW15pF

MAX. 300Vpk

CH2 EXT TRIG

CAT300V

MW15pF

MAX. 300Vpk

X Y

150 MHz 1 G Sa/s

Digital Storage Oscilloscope

GDS-1152A-U

LCD display

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

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

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

Variable knob

VARIABLE

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

Acquire key

Acquire

Configures the acquisition mode (page 78).

Display key

Display

Configures the display settings (page 83).

Cursor key

Cursor

Runs cursor measurements (page

61).

Panel Overview

Front Panel

(Continued on next page)

GDS-1000A-U Series User Manual

Utility key

Utility

Configures the Hardcopy function (page 115), shows the system status (page 107), selects the menu language (page 107), runs the self calibration (page 131), configures the probe compensation signal (page 132), and selects the USB host type(page 104).

Help key

Help

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

Autoset key

Autoset

Automatically configures the horizontal, vertical, and trigger settings according to the input signal (page 48).

Measure key

Measure

Configures and runs automatic measurements (page 55).

Save/Recall key

Save/Recall

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

Hardcopy key

Hardcopy

Stores images, waveforms, or panel settings to USB (page 115).

Run/Stop key

Run/Stop

Runs or stops triggering (page 50).

Trigger level knob

LEVEL

TRIGGER

Sets the trigger level (page 96).

Trigger menu key

Configures the trigger settings (page 96).

Single trigger key

SINGLE

Selects the single triggering mode (page 103).

Trigger force key

FORCE

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

GETTING STARTED

Horizontal menu key

Configures the horizontal view (page 85).

Horizontal position knob

Moves the waveform horizontally (page 85).

TIME/DIV knob

TIME/DIV

Selects the horizontal scale (page

85).

Vertical position knob

Moves the waveform vertically (page 91).

CH1/CH2 key

CH 1

Configures the vertical scale and coupling mode for each channel (page 91).

VOLTS/DIV knob

VOLTS/DIV

Selects the vertical scale (page 91).

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

Outputs a 2Vp-p, square signal for compensating the probe (page

132) or demonstration.

External trigger input

EXT TRIG

Accepts an external trigger signal (page 96).

GDS-1000A-U Series User Manual

Power switch

Powers the oscilloscope on or off.

Rear Panel

LINE VOLTAGE

AC 100 240V

FUSE RATING

RANGE

T1A 250V

FREQUENCY 50 60Hz

POWER MAX. 18W 40VA

USB portCAL outputPower cord socketFuse socket

Security lock slot

Power cord socket

Fuse socket

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 137.

USB slave port

Accepts a type B (slave) male USB connector for remote control of the oscilloscope (page 104).

Calibration output

Outputs the calibration signal used in vertical scale accuracy calibration (page 131).

Security lock slot

Standard laptop security lock slot for ensuring the security of the GDS-1000A-U.

GETTING STARTED

Display

Waveform marker

Vertical status Horizontal status Frequency Trigger condition

Waveform position Trigger status Acquisition

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 signal regardless of trigger conditions

STOP

Triggering is stopped

For trigger setting details, see page 96.

Input signal frequency

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.

Trigger configuration

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

Horizontal status

Vertical status

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

GDS-1000A-U Series User Manual

GETTING STARTED

Background

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

Procedure

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.

Default

Setup

Save/Recall

Setting up the Oscilloscope

GDS-1000A-U Series User Manual

6. Connect the probe between the Channel1 input

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

7. Set the probe attenuation voltage to x10.

VOLTS/DIV VOLTS/DIV TIME/DIV

CH 1 MATH CH 2 MENU MENU

Acquire

Display

Utility Help

Run/Stop

VARIABLE

FORCE

Autoset

Cursor

SINGLE

Hardcopy

Measure

Save/Recall

LEVEL

VERTICAL HORIZONTAL TRIGGER

CH1

CAT300V

MW15pF

MAX. 300Vpk

CH2 EXT TRIG

CAT300V

MW15pF

MAX. 300Vpk

X Y

X 10

X 1

CH1

x10

8. Press the Autoset key. A

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

Autoset

9. Press the Display key, then

Type and select the vector waveform type.

Type

Vectors

Display

10. Turn the adjustment point on the probe to

flatten the square waveform edge.

GETTING STARTED

Over

Compensation

Normal

Under

Compensation

11. Setting up the oscilloscope is complete. You

may continue with the other operations.

Measurement: page 47

Configuration: page 78

GDS-1000A-U Series User Manual

Conventions

Examples

Normal

= Press the functional key for “Normal”

Average

= Repeatedly press the functional key for “Average”

Normal ~ Average

= Select a menu from “Normal” to “Average” and

press its functionality key

Normal→VAR

= Press the functionality key for “Normal”, and

then use the Variable knob

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

Normal

Peak

Detect

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

Average

Sample Rate

500MS/s

Acquire

Delay

On/ Off

Select acquisition mode

Normal ~ Peak-Detect

Select average number

Average

Turn Delay on/off

Delay On

On/ Off

/ /

Coupling

Invert

Off

BW Limit

Off

Voltage

CH 1

Expand

Center

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

CH1/CH2 key

QUICK REFERENCE

Cursor key 1/2

CH1/ 2/ MATH

Source

CH1

X↔ Y

Cursor

X1X2

10.00uS

100.0kHz

0.000uV

-5.000uS

0.000uV

5.000uS

0.000uV

∆ : f :

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

CH1/ 2/ MATH

Source

CH1

X↔ Y

Cursor

123.4mV Y2

12.9mV Y1Y2

10.5mV

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

Cursor key 2/2

GDS-1000A-U Series User Manual

Display key

Vectors/ Dots

Type

Vectors

On/ Off

Accumulate

Off

Refresh

Contrast

Full

/ /

Display

Select waveform type

Type

Waveform accumulate On/Off

Accumulate

Refresh accumulation

Refresh

Set display contrast

Contrast→VAR

Select display grid

Undo

Type

Fit Screen

Fit Screen AC Priority

Autoset

Automatically find the signal and set the scale

Autoset

Change the Type of Autoset mode.

Type (available for a few seconds)

Undo Autoset

Undo (available for a few seconds)

Hardcopy

→ See Utility key (page 40)

Autoset key

QUICK REFERENCE

Hardcopy key

GDS-1000A-U Series User Manual

Help

Turn help mode on/off

Help

Main

Window Window

Zoom

Roll

H Pos Adj

Fine

Reset

Hor Pos

180.0uS Next

340.0uS

Set/Clear

180.0uS

Fine/Coarse

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

Toggle adjustment mode

H Pos Adj

Reset horizontal marker

Reset

Set Horizontal marker/delete horizontal marker.

HOR →Set/Clear

Navigate to previous horizontal marker.

Navigate to next horizontal marker.

Help key

Horizontal menu key

QUICK REFERENCE

Operation

CH1+CH2

Position

0.00 Div Unit/Div

-12div ~ +12div

CH1+CH2 CH1-CH2 CH1xCH2 FFT FFT rms

MATH

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 1/2 (+/-/x)

GDS-1000A-U Series User Manual

Operation

FFT

Source

CH1

Zoom

0.0000Hz

1/2/5/10/20X

Window

Hanning

Flattop/ Rectangular/ Blackman/ Hanning

CH1/2

MATH

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

CH1+CH2 CH1-CH2 CH1xCH2 FFT FFT rms

Vertical

0.00 Div

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

Math key 2/2 (FFT/FFT rms)

+ 118 hidden pages