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Digital Storage Oscilloscope GDS-1000A-U Series USER MANUAL GW INSTEK PART NO. 82DS-112AUEC1 ISO-9001 CERTIFIED MANUFACTURER

GDS-1000A-U Series User Manual 10 Power Supply WARNING  AC Input voltage: 100 ~ 240V AC, 47 ~ 63Hz  The power supply voltage should not fluct

GDS-1000A-U Series User Manual 100 7. Press Coupling repeatedly to select the trigger coupling, DC or AC. CouplingAC Range DC, AC 8. Press R

CONFIGURATION 101 4. Press Standard repeatedly to select the video standard. StandardNTSC Range NTSC, PAL, SECAM 5. Press Polarity repeatedl

GDS-1000A-U Series User Manual 102 4. Press Mode repeatedly to select the trigger mode, Auto or Normal. To select the Single trigger mode, press

CONFIGURATION 103 10. Press Noise Rej to turn the noise rejection on or off. Noise Rej Off Range On, Off 11. Press Previous menu to go back to

GDS-1000A-U Series User Manual 104 Rear Panel USB Port Interface The USB slave port on the rear panel can be set to auto detect, however occasiona

CONFIGURATION 105 Remote Control Interface The Remote control interface section describes how to set up the USB interface for PC connection. Remot

GDS-1000A-U Series User Manual 106 5. Run this query command via the terminal application. *idn? This command should return the manufacturer, mo

CONFIGURATION 107 System Settings The system settings show the oscilloscope’s system information and allow changing the language. Viewing the syst

GDS-1000A-U Series User Manual 108 Procedure 1. Press the Utility key. Utility 2. Press Language repeatedly to select the language. LanguageEn

SAVE/RECALL 109 SAVE/RECALL The save function allows saving display images, waveform data, and panel settings into the oscilloscope’s internal mem

SAFETY INSTRUCTIONS 11 (Pollution Degree) EN 61010-1:2001 specifies pollution degrees and their requirements as follows. The oscilloscope falls u

GDS-1000A-U Series User Manual 110 Detail Contains the waveform amplitude and time of each point (4k/1M/2M) relative to the trigger point. Fast

SAVE/RECALL 111 Note: 2M point memory lengths are only available for time bases slower than 10ns/div on a single channel, and 1 M point memory le

GDS-1000A-U Series User Manual 112 Setup file format Format xxxx.set (proprietary format) A setup file saves or recalls the following settings. C

SAVE/RECALL 113 Using the USB file utilities Background When a USB flash drive is inserted into the oscilloscope, file utilities (file deletion,

GDS-1000A-U Series User Manual 114 Creating a new folder / renaming a file or folder 1. Move the cursor to the file or folder location and press

SAVE/RECALL 115 Quick Save (HardCopy) Background The Hardcopy key works as a shortcut for printing screen images directly to a printer or to save

GDS-1000A-U Series User Manual 116 5. To invert the color in the display image, press Ink Saver. This turns Ink Saver on or off. Ink Saver Off

SAVE/RECALL 117 Save This section describes how to save data using the Save/Recall menu. File type/source/destination Item Source Destination Pan

GDS-1000A-U Series User Manual 118 Saving the panel settings Procedure 1. (For saving to USB flash drive) Insert the USB flash drive into the fr

SAVE/RECALL 119 File utilities To edit the USB drive contents (create/ delete/ rename files and folders), press File Utilities. For details, see p

GDS-1000A-U Series User Manual 12 Power cord for the United Kingdom When using the oscilloscope in the United Kingdom, make sure the power cord me

GDS-1000A-U Series User Manual 120 Memory Internal memory, W1 ~ W15 USB Normal Save to the USB flash drive with a 4k waveform memory length.

SAVE/RECALL 121 Saving the display image Background Saving the display image can be used as a screen capture or it can be used as a reference wav

GDS-1000A-U Series User Manual 122 Saving all (panel settings, display image, waveform) Procedure 1. (For saving to USB flash drive) Insert the

SAVE/RECALL 123 USB 1M Save to the USB flash drive with a 1M waveform memory length. For 2 channel operation only. USB 2M Save to the USB flas

GDS-1000A-U Series User Manual 124 Recall File type/source/destination Item Source Destination Default panel setup  Factory installed setting 

SAVE/RECALL 125 Recalling the default panel settings Procedure 1. Press the Save/Recall key. Save/Recall 2. Press Default Setup. The factory i

GDS-1000A-U Series User Manual 126 Recalling a reference waveform to the display Procedure 1. The reference waveform must be stored in advance.

SAVE/RECALL 127 3. Press Recall Setup. RecallSetup 4. Press Source repeatedly to select the file source, internal or external memory. Use the

GDS-1000A-U Series User Manual 128 3. Press Recall Waveform. The display shows the available source and destination options. RecallWaveform 4.

SAVE/RECALL 129 File utilities To edit the USB drive contents (create/ delete/ rename files and folders), press File Utilities. For details, see p

GETTING STARTED 13 GETTING STARTED The Getting started chapter introduces the oscilloscope’s main features, appearance, and set up procedure. Mai

GDS-1000A-U Series User Manual 130 4. Use the Variable knob to choose a file name (DSXXXX.BMP). VARIABLE USB The image file must be placed in

MAINTENANCE 131 MAINTENANCE Two types of maintenance operations are available: calibrating the vertical resolution, and compensating the probe. Ru

GDS-1000A-U Series User Manual 132 7. The Channel1 calibration will complete in less than 5 minutes. Ch1 calibration 1/3 8. When finished, con

MAINTENANCE 133 4. Press Wavetype repeatedly to select the standard square wave. Wave Type 5. Press the Autoset key. The compensation signal w

GDS-1000A-U Series User Manual 134 FAQ • The input signal does not appear in the display. • I want to remove some contents from the display. • Th

FAQ 135 The waveform does not update (frozen). Press the Run/Stop key to unfreeze the waveform. See page 50 for details. For trigger setting deta

GDS-1000A-U Series User Manual 136 The accuracy does not match the specifications. Make sure the device is powered on for at least 30 minutes, wi

APPENDIX 137 APPENDIX Fuse Replacement Procedure 1. Remove the power cord and remove the fuse socket using a minus driver. 2. Replace the f

GDS-1000A-U Series User Manual 138 GDS-1000A-U Series Specifications The specifications apply when the oscilloscope is powered on for at least 30

APPENDIX 139 Common specifications Vertical Sensitivity 2mV/div~10V/Div (1-2-5 increments) Accuracy ± (3% x |Readout|+0.1div + 1mV) Bandwidth S

GDS-1000A-U Series User Manual 14  Compact size: (W) 310 x (D) 140 x (H) 142 mm  Probe factor from 0.1X~2000X voltage/current Interface  USB

GDS-1000A-U Series User Manual 140 Cursors and Measurement Voltage Vpp, Vamp, Vavg, Vrms, Vhi, Vlo, Vmax, Vmin, Rise Preshoot/ Overshoot, Fall Pr

APPENDIX 141 Probe Specifications GDS-1072A-U Probe Applicable model & probe GDS-1072A-U GTP-070A-4* Position x 10 Attenuation Ratio 10:1 B

GDS-1000A-U Series User Manual 142 GDS-1152A-U Probe Applicable model & probe GDS-1152A-U GTP-150A-2* Position x 10 Attenuation Ratio 10:1

APPENDIX 143 Dimensions VOLTS/DIV VOLTS/DIV TIME/DIVCH 1 MATH CH 2 MENU MENUAcquireDisplayUtility HelpRun/StopVARIABLEFORCEAutosetCursorSINGLEHar

GDS-1000A-U Series User Manual 144 EC Declaration of Conformity We GOOD WILL INSTRUMENT CO., LTD. No.7-1, Jhongsing Rd., Tucheng Dist., New Taipe

INDEX 145 INDEX 2M memory length limits ... 110 AC coupling ... 92 Accumulating waveform ... 83 Acquisitio

GDS-1000A-U Series User Manual 146 pollution degree ... 11 Environment ... 140 safety instructio

INDEX 147 attenuation menu tree ... 25 compensation menu tree ... 43 compensation signal overview ... 53 faq ...

GDS-1000A-U Series User Manual 148 recall menu tree ... 33 roll mode ... 86 save ...

GETTING STARTED 15 Panel Overview Front Panel LCD DisplayFunction keysVARIABLE knobMenu keysTriggerLEVEL knobTriggerkeysGround TerminalCH1terminal

GDS-1000A-U Series User Manual 16 Utility key Utility Configures the Hardcopy function (page 115), shows the system status (page 107), selects th

GETTING STARTED 17 Horizontal menu key MENU Configures the horizontal view (page 85). Horizontal position knob Moves the waveform horizontally (p

GDS-1000A-U Series User Manual 18 Power switch Powers the oscilloscope on or off.

GETTING STARTED 19 Rear Panel LINE VOLTAGEAC 100 240VFUSE RATINGRANGET1A 250VFREQUENCY 50 60HzPOWER MAX. 18W 40VAUSB portCAL outpu

May 2014 edition This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may

GDS-1000A-U Series User Manual 20 Display Waveform markerVertical status Horizontal status Frequency Trigger conditionWaveform position Trigger st

GETTING STARTED 21 Setting up the Oscilloscope Background This section describes how to set up the oscilloscope properly including adjusting the

GDS-1000A-U Series User Manual 22 6. Connect the probe between the Channel1 input terminal and probe compensation signal output (2Vp-p, 1kHz squ

GETTING STARTED 23 Over CompensationNormalUnder Compensation 11. Setting up the oscilloscope is complete. You may continue with the other operat

GDS-1000A-U Series User Manual 24 QUICK REFERENCE This chapter lists the oscilloscope menu tree, operation shortcuts, built-in help coverage, and

QUICK REFERENCE 25 NormalPeakDetect2/ 4/ 8/ 16/ 32/64/ 128/ 256AverageSample Rate500MS/sAcquireDelayOnOn/ Off Select acquisition mode Normal ~ Pe

GDS-1000A-U Series User Manual 26 Cursor key 1/2 CH1/ 2/ MATHSourceCH1X↔YCursorX1X210.00uS100.0kHz 0.000uVX1-5.000uS0.000uVX25.000uS0.000uV∆

QUICK REFERENCE 27 Display key Vectors/ DotsTypeVectorsOn/ OffAccumulateOffRefreshContrast Full/ /Display Select waveform type Type Wave

GDS-1000A-U Series User Manual 28 Help key Help Turn help mode on/off Help Horizontal menu key MENUMainWindowWindowZoomXYRollMENUH Pos AdjFineR

QUICK REFERENCE 29 Math key 1/2 (+/-/x) OperationCH1+CH2Position0.00 DivUnit/Div2V-12div ~ +12divCH1+CH2CH1-CH2CH1xCH2FFTFFT rmsMATH200mV~10V/div

TABLE OF CONTENTS 3 Table of Contents SAFETY INSTRUCTIONS ... 8 Safety Symbols ...

GDS-1000A-U Series User Manual 30 Math key 2/2 (FFT/FFT rms) OperationFFTSourceCH1Zoom1X0.0000Hz1/2/5/10/20XWindowHanningFlattop/Rectangular/Blac

QUICK REFERENCE 31 Measure key VoltageVppPreviousMenuView all/SelectMeasurements(Voltage/Time/Delay)Vpp 1:204mV 2: 300mVVavg 1: 1.93mV 2: 28.0mVF

GDS-1000A-U Series User Manual 32 Save/Recall key 1/10 RecallSetupRecallWaveformDisplayRefs.SaveSetupSaveWaveformSaveImageSaveAllTo Recall Se

QUICK REFERENCE 33 Save/Recall key 3/10 RecallWaveformRecallFileUtilitiesRecall WaveformDestinationSourceMemoryMemory/USB(USB only)To File Utilit

GDS-1000A-U Series User Manual 34 Save/Recall key 5/10 DisplayRefs.Ref.A OffRef.B OffOn/ OffOn/ OffDisplay Refs.Ref.A On1V2.5ms Select other menu

QUICK REFERENCE 35 Save/Recall key 7/10 SaveWaveformSourceSaveFileUtilitiesSave WaveformDestinationMemoryMemoryUSB NormalUSB 1MUSB 2M/Refs.(USB o

GDS-1000A-U Series User Manual 36 Save/Recall key 9/10 SaveAllSaveFileUtilitiesSave AllDestinationUSB(USB only)To File UtilitiesInk Saver OffOn/

QUICK REFERENCE 37 Trigger key 1/6 TypeEdgeSourceCH1ModeAutoSlope /CouplingHoldoff40.0nsSet toMinimumMENU MENUTrigger TypeTrigger Holdoff Select

GDS-1000A-U Series User Manual 38 Trigger key 3/6 TypeEdgeSourceCH1ModeAutoSlope /CouplingCH1/2/Ext/LineAuto/ NormalTo Slope/CouplingEdge Trigger

QUICK REFERENCE 39 Trigger key 5/6 LF/ HF/ OffOn/ Off/SlopeCouplingACRejection OffPreviousMenuNoise Rej OffAC/ DCCoupling/Slope Select trigger sl

GDS-1000A-U Series User Manual 4 Trigger key 2/6 ... 37 Trigger key 3/6 ...

GDS-1000A-U Series User Manual 40 Utility key 1/11 (Utility #1) HardcopyMenuMoreProbeCompMenuLanguageEnglishTo ProbeComp menuTo HardcopymenuEngli

QUICK REFERENCE 41 Utility key 3/11 (Utility #3) Self CALMenuCalibrationUSB PortAuto Detect Auto Detect Computer PrinterMoreTo Utility #1 menu To

GDS-1000A-U Series User Manual 42 Utility key 5/11 (Hardcopy -Printer) FunctionPrinterPrevious MenuOn/ OffInk Saver OffHardcopy – PrinterPage Siz

QUICK REFERENCE 43 Utility key 7/11 (Probe compensation) Wave Type( only)1k ~ 100k( only)5% ~ 95%Default1kHz/Previous MenuFrequ

GDS-1000A-U Series User Manual 44 Utility key 9/11 (Data Logging 1/2) OffCH1/CH2On/OffTo previousmenuData loggingData loggingSourceCH1SetupFile U

QUICK REFERENCE 45 Default Settings Here are the factory installed panel settings which appear when pressing the Save/Recall key→ Default Setup. D

GDS-1000A-U Series User Manual 46 Data Logging Data logging: Off Source: CH1 Setup: Waveform Interval: 2 secs Duration: 5 mins Built-in Help

MEASUREMENT 47 MEASUREMENT The Measurement chapter describes how to properly observe a signal using the oscilloscope’s basic functions, and how to

GDS-1000A-U Series User Manual 48 Channel iconChannelindicatorChannel 1 off Channel 1 on De-activating a channel To de-activate the channel, pres

MEASUREMENT 49 Procedure 1. Connect the input signal to the oscilloscope and press the Autoset key. Autoset 2. The waveform(s) appears in the c

TABLE OF CONTENTS 5 Edit: Template (boundary) ... 69 Run Go-NoGo Tests ...

GDS-1000A-U Series User Manual 50 Fit Screen AC Priority Limitation Autoset does not work in the following situation.  Input signal frequency le

MEASUREMENT 51 Waveform operation Waveforms can be moved or scaled in both the Run and Stop mode. For details, see page 85 (Horizontal position/sc

GDS-1000A-U Series User Manual 52 Horizontal scale: 50us/div Horizontal scale: 250us/div Changing the vertical position and scale For more detaile

MEASUREMENT 53 Using the probe compensation signal Background This section introduces how to use the probe compensation signal for general usage,

GDS-1000A-U Series User Manual 54 4. Press Wave type repeatedly to select the wave type. Wave Type 5. (For only) To change the frequency, pre

MEASUREMENT 55 Automatic Measurements The automatic measurement function measures input signal attributes and updates them in the display. Up to 5

GDS-1000A-U Series User Manual 56 Vlo Global low voltage. Vavg Averaged voltage of the first cycle. Vrms RMS (root mean square) voltage. RO

MEASUREMENT 57 FRF Time between: Source 1 first rising edge and Source 2 first falling edge FFR Time between: Source 1 first falling edge and

GDS-1000A-U Series User Manual 58 2. Press the Measure key. Measure 3. The measurement results appear on the menu bar, constantly updated. All

MEASUREMENT 59 Editing a measurement item 3. Press the corresponding menu key (F1~F5) to select the measurement slot to be edited. VoltageVpp

GDS-1000A-U Series User Manual 6 System Settings ... 107 Viewing the system informatio

GDS-1000A-U Series User Manual 60 7. Press Source 2 repeatedly to change the channel for Source2. Source 2CH2 Range CH1, 2, Math View all meas

MEASUREMENT 61 Cursor Measurements Cursor lines, horizontal or vertical, show the precise position of the input waveforms or the math operation re

GDS-1000A-U Series User Manual 62 M1:dB Position of the left cursor in dB. M2:dB Position of the right cursor in dB. ∆: dB The dB difference b

MEASUREMENT 63 Y1Y2 The difference between the upper and lower cursor V/A The voltage/current difference (Y1-Y2). Moving the vertical cursors To

GDS-1000A-U Series User Manual 64 FFT RMS Performs a FFT RMS calculation on a signal. RMS is similar to FFT, however the amplitude is calculated a

MEASUREMENT 65 3. Press Operation repeatedly to select addition (+), subtraction (–) or multiplication (×). OperationCH1+CH2 4. The math measu

GDS-1000A-U Series User Manual 66 5. The FFT result appears. The horizontal scale changes from time to frequency, and the vertical scale from vo

MEASUREMENT 67 10. To move the FFT/FFT rms waveform horizontally, press Zoom repeatedly until Hz is selected. Use the Variable knob to change the

GDS-1000A-U Series User Manual 68 Edit: NoGo When Procedure 1. Press the Utility key. Utility 2. Press the More key. More 3. Press No Go Whe

MEASUREMENT 69 Edit: NoGo Violation Conditions Procedure 1. Press the Utility key. Utility 2. Press the More key. More 3. Press the Go-NoGo

TABLE OF CONTENTS 7 APPENDIX ... 137 Fuse Replacement ...

GDS-1000A-U Series User Manual 70 Disadvantage: The waveforms (templates) have to be stored internally prior to this selection. Auto Creates the

MEASUREMENT 71 7. Press Source and use the Variable knob to select the waveform template. SourceW 01 VARIABLE Max Waveform A: Ref A, W01~W15

GDS-1000A-U Series User Manual 72 Auto 1. The template is based on the source signal. Ensure the source signal appears on the display. 2. Press

MEASUREMENT 73 Div 0.04 Div ~ 4.0 Div 9. When the Auto template has been configured, press Save & Create to save the template. Save &C

GDS-1000A-U Series User Manual 74 4. Press Go-NoGo. The test starts and stops according to the conditions set on page 68, 69. To stop the test t

MEASUREMENT 75 Edit: Source Procedure 1. Press the Utility key. Utility 2. Press the More key. More 3. Press the Data logging Menu key. Data

GDS-1000A-U Series User Manual 76 5. Press Save repeatedly to log data or screen images. SaveWaveform 6. Press Interval and use the Variable k

MEASUREMENT 77 Run Data logging Background Ensure the data source (page 75) and data logging setup has been set (page 75). Procedure 1. Insert a

GDS-1000A-U Series User Manual 78 CONFIGURATION The Configuration chapter describes how to configure panel settings to make measurements and obser

CONFIGURATION 79 Average Multiple data is averaged to form a waveform. This mode is useful for drawing a noise-free waveform. To select the numbe

GDS-1000A-U Series User Manual 8 SAFETY INSTRUCTIONS This chapter contains important safety instructions that should be followed when operating an

GDS-1000A-U Series User Manual 80 7. Press Normal. Normal 8. Press Peak-Detect and see that a spike noise is captured. PeakDetect Example The

CONFIGURATION 81 Expansion PointHorizontal scaleTriggerPointExpansion PointHorizontal scaleTriggerPoint Delay Off With Delay Off the expansion poi

GDS-1000A-U Series User Manual 82 Real time vs Equivalent time sampling mode Background The oscilloscope automatically switches between two sampl

CONFIGURATION 83 Display The Display section describes how to configure the display settings: drawing type, waveform accumulation, contrast adjust

GDS-1000A-U Series User Manual 84 Example Accumulation off Accumulation on Adjusting the display contrast Procedure 1. Press the Display key.

CONFIGURATION 85 Horizontal View The Horizontal view section describes how to configure the horizontal scale, position, waveform update mode, wind

GDS-1000A-U Series User Manual 86 Selecting the waveform update mode Background The display update mode is switched automatically or manually acc

CONFIGURATION 87 Zooming the waveform horizontally Procedure/ range 1. Press the Horizontal Menu key. MENU 2. Press Window. Window 3. Use th

GDS-1000A-U Series User Manual 88 Viewing waveforms in the X-Y mode Background The X-Y mode compares the voltage of Channel 1 and Channel 2 wavef

CONFIGURATION 89 Horizontal Adjustment Menu Background The horizontal adjustment menu allows markers to be set at different times relative to the

SAFETY INSTRUCTIONS 9 Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the s

GDS-1000A-U Series User Manual 90 Navigate markers 7. Press Previous to go to the previous marker. Previous180.0uS 8. Press Next to go to the n

CONFIGURATION 91 Vertical View (Channel) The Vertical view section describes how to set the vertical scale, position, bandwidth limitation, coupli

GDS-1000A-U Series User Manual 92 AC coupling mode. Only the AC portion of the signal appears on the display. This mode is useful for observing

CONFIGURATION 93 Procedure 1. Press the Channel key. CH 1 2. Press F5 to toggle between Expand Center and Expand Ground. ExpandCenter 3. To ch

GDS-1000A-U Series User Manual 94 Limiting the waveform bandwidth Background Bandwidth limitation puts the input signal into a 20MHz (−3dB) low-p

CONFIGURATION 95 2. Press F4 repeatedly to select voltage or current probes. Voltagex1 3. Use the variable knob to edit the voltage or current a

GDS-1000A-U Series User Manual 96 Trigger The Trigger function configures the conditions by which the oscilloscope captures the incoming signals.

CONFIGURATION 97 The Auto trigger status appears in the upper right corner of the display. Single The oscilloscope acquires the input signals

GDS-1000A-U Series User Manual 98 line 1~263 for NTSC, 1~313 for PAL/SECAM Pulse condition (pulse trigger) Sets the pulse width (20ns ~ 10s) and

CONFIGURATION 99 Pressing Set to Minimum sets the Holdoff time to the minimum, 40ns. Holdoff40.0ns Note: The holdoff function is automatically