GW Instek GDS-1000A-U Series User Manual
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GW Instek GDS-1000A-U Series User Manual

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

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  • Page 1 Digital Storage Oscilloscope GDS-1000A-U Series USER MANUAL GW INSTEK PART NO. 82DS-112AUEC1 ISO-9001 CERTIFIED MANUFACTURER...
  • Page 2 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.

  • Page 3: Table Of Contents

    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 ................
  • Page 4 GDS-1000A-U Series User Manual Trigger key 2/6 ..............36 Trigger key 3/6 ..............37 Trigger key 4/6 ..............37 Trigger key 5/6 ..............38 Trigger key 6/6 ..............38 Utility key 1/10 (Utility #1) ..........39 Utility 2/10 (Utility #2) ............39 Utility key 3/10 (Utility #3) ..........
  • Page 5 TABLE OF CONTENTS Run Go-NoGo Tests ............. 72 Data Logging ..............73 Overview ................73 Edit: Source ................74 Edit: Setup Parameters............74 Run Data logging..............76 CONFIGURATION ......... 77 Acquisition ................ 77 Selecting the acquisition mode ..........77 Selecting Delay mode ............79 Real time vs Equivalent time sampling mode .....
  • Page 6 GDS-1000A-U Series User Manual Selecting the language ............104 SAVE/RECALL ..........106 File Structures ..............106 Display image file format ........... 106 Waveform file format ............106 Setup file format ..............109 Using the USB file utilities ..........110 Quick Save (HardCopy) ........... 112 Save ................
  • Page 7 TABLE OF CONTENTS GDS-1000A-U Series Specifications ......... 135 Model-specific specifications ..........135 Common specifications ............. 136 Probe Specifications ............138 GDS-1072A-U Probe ............138 GDS-1102A-U Probe ............138 GDS-1152A-U Probe ............139 Dimensions ..............140 EC Declaration of Conformity .......... 141...

  • Page 8: Safety Instructions

    GDS-1000A-U Series User Manual AFETY 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.

  • Page 9: Safety Guidelines

    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. Safety Guidelines Make sure the BNC input voltage does not General  exceed 300V peak. Guideline Never connect a hazardous live voltage to the ...
  • Page 10 GDS-1000A-U Series User Manual AC Input voltage: 100 ~ 240V AC, 47 ~ 63Hz Power Supply  The power supply voltage should not fluctuate  WARNING more than 10%. Connect the protective grounding conductor of  the AC power cord to an earth ground.
  • Page 11 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”.

  • Page 12: Power Cord For The United Kingdom

    GDS-1000A-U Series User Manual 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...

  • Page 13: Getting Started

    GETTING STARTED ETTING STARTED The Getting started chapter introduces the oscilloscope’s main features, appearance, and set up procedure. Main Features Model name Frequency bandwidth Input channels GDS-1072A-U DC – 70MHz (–3dB) GDS-1102A-U DC – 100MHz (–3dB) GDS-1152A-U DC – 150MHz (–3dB) 1 GS/s real-time sampling rate Performance ...
  • Page 14 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  USB 2.0 full-speed interface for saving and Interface  recalling data Calibration output  External trigger input ...

  • Page 15: Panel Overview

    GETTING STARTED Panel Overview Front Panel Function VARIABLE Vertical VOLTS/DIV Horizontal Display keys knob POSITION knob POSITION knob knob Menu keys Acquire Display Utility Help Autoset VARIABLE Trigger Cursor Measure Save/Recall Hardcopy Run/Stop LEVEL knob VERTICAL HORIZONTAL TRIGGER LEVEL Horizontal MENU key CH 1 MATH...
  • Page 16 GDS-1000A-U Series User Manual Configures the Hardcopy function Utility key Utility (page 112), shows the system status (page 104), selects the menu language (page 104), runs the self calibration (page 128) and configures the probe compensation signal (page 129). Shows the Help contents on the...
  • Page 17 GETTING STARTED Moves the waveform horizontally Horizontal (page 84). position knob Selects the horizontal scale (page TIME/DIV TIME/DIV knob 84). Moves the waveform vertically Vertical position (page 90). knob CH 1 Configures the vertical scale and CH1/CH2 key coupling mode for each channel (page 90).

  • Page 18: Rear Panel

    GDS-1000A-U Series User Manual Rear Panel Security lock Fuse socket Power cord socket CAL output USB port slot LINE VOLTAGE AC 100 240V RANGE FREQUENCY 60Hz FUSE RATING 250V POWER MAX. 18W 40VA Power cord socket accepts the AC Power cord mains, 100 ~ 240V, 50/60Hz.

  • Page 19: Display

    GETTING STARTED Display Waveform marker Waveform position Trigger status Acquisition Menu Vertical status Horizontal status Frequency Trigger condition Channel 1: Yellow Channel 2: Blue Waveforms A signal is being triggered Trigger status Trig’d Waiting for a trigger condition Trig? Updating the input signal Auto regardless of trigger conditions Triggering is stopped...

  • Page 20: Setting Up The Oscilloscope

    GDS-1000A-U Series User Manual Setting up the Oscilloscope This section describes how to set up the Background 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.
  • Page 21 GETTING STARTED 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. Acquire Display Utility Help Autoset VARIABLE Cursor Measure Save/Recall Hardcopy Run/Stop VERTICAL HORIZONTAL TRIGGER LEVEL...
  • Page 22 GDS-1000A-U Series User Manual Over Under Normal Compensation Compensation 11. Setting up the oscilloscope is complete. You may continue with the other operations. Measurement: page 46 Configuration: page 77...

  • Page 23: Quick Reference

    QUICK REFERENCE UICK 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 Examples Conventions = Press the functional key for “Normal” Normal = Repeatedly press the functional key for Average...

  • Page 24: Ch1/Ch2 Key

    GDS-1000A-U Series User Manual Acquire key Acquire Select acquisition mode Normal ~ Peak-Detect Select average number Normal Average 2/ 4/ 8/ 16/ 32/ Average 64/ 128/ 256 Peak Turn Delay on/off Detect Delay Delay On On/ Off Sample Rate 500MS/s...

  • Page 25: Cursor Key 1/2

    QUICK REFERENCE Cursor key 1/2 Turn cursor on/off Cursor Cursor Source Move X1 cursor CH1/ 2/ MATH X1→ VAR -5.000uS 0.000uV Move X2 cursor 5.000uS 0.000uV X1X2 X2→ VAR ∆ : 10.00uS 100.0kHz 0.000uV Move both X1 and X2 cursor X↔Y X1X2→...

  • Page 26: Display Key

    GDS-1000A-U Series User Manual Display key Select waveform type Display Type Type Vectors/ Dots Waveform accumulate On/Off Vectors Accumulate On/ Off Accumulate Refresh accumulation Refresh Contrast Refresh Set display contrast Full Contrast→VAR Select display grid Autoset key Automatically find the signal and set...

  • Page 27: Help Key

    QUICK REFERENCE Help key Turn help mode on/off Help Help Horizontal menu key MENU MENU H Pos Adj Fine/Coarse Main Fine Reset Window Hor Pos Window Set/Clear Zoom 180.0uS Previous Roll 180.0uS Next 340.0uS Switch from Horizontal Menu Horizontal MENU to Horizontal Position Menu.

  • Page 28: Math Key 1/2 (+/-/X)

    GDS-1000A-U Series User Manual Math key 1/2 (+/-/x) Math on/off MATH CH1+CH2 Math CH1-CH2 Operation CH1xCH2 Select math operation type (+/– CH1+CH2 /x/FFT/FFT rms) FFT rms Operation Set result position Position -12div ~ +12div 0.00 Div Position→VAR Unit/Div 200mV~10V/div Math result Volt/Div...

  • Page 29: Math Key 2/2 (Fft/Fft Rms)

    QUICK REFERENCE Math key 2/2 (FFT/FFT rms) Math on/off MATH CH1+CH2 CH1-CH2 Math CH1xCH2 Operation Select math operation type (+/– FFT rms /x/FFT/FFT rms) Source CH1/2 Operation Window Flattop/ Rectangular/ Hanning Select FFT source channel Blackman/ Hanning Vertical -12div ~ +12div Source 20/10/5/2/1 dB 0.00 Div...

  • Page 30: Measure Key

    GDS-1000A-U Series User Manual Measure key Measure Measure Source 1 1:204mV 2: 300mV Vavg Source 2 1: 1.93mV View all/Select 2: 28.0mV Frequency Measurements Voltage 1: 1.000kHz (Voltage/ 2: 3.003kHz Time/Delay) Duty Cycle 1: 50.01% 2: 49.88% Rise Time Previous 1.

  • Page 31: Save/Recall Key 1/10

    QUICK REFERENCE Save/Recall key 1/10 Save/Recall Save/Recall Default Save To Save Setup Setup Setup Recall Save To Recall To Save Setup Waveform Setup Waveform Recall Save To Recall To Save Waveform Image Waveform Image Recall Save To Recall To Save Image Image Display...

  • Page 32: Save/Recall Key 3/10

    GDS-1000A-U Series User Manual Save/Recall key 3/10 Select other menu Recall Waveform Recall Recall Waveform Waveform Source Select waveform source Memory/USB Memory →VAR Source RefA/B Destination Select waveform destination Recall Destination→VAR File (USB only) To File Utilities Utilities Recall waveform...

  • Page 33: Save/Recall Key 5/10

    QUICK REFERENCE Save/Recall key 5/10 Select other menu Display Refs. Display Display Refs. Refs. Ref.A Off Turn ref. waveform A on/off On/ Off Ref.B Off Ref.A On/ Off Turn ref. waveform B on/off Ref.A On Ref.B 2.5ms Save/Recall key 6/10 Select other menu Save Setup Save...

  • Page 34: Save/Recall Key 7/10

    GDS-1000A-U Series User Manual Save/Recall key 7/10 Select other menu Save Waveform Save Save Waveform Waveform CH1/2/Math Select source Source Ref A/B Destination Memory →VAR Source USB Normal Memory USB 1M Select destination USB 2M/Refs. Save →VAR Destination File (USB only)

  • Page 35: Save/Recall Key 9/10

    QUICK REFERENCE Save/Recall key 9/10 Select other menu Save All Save Save All Ink Saver Turn on/off ink saver On/ Off Destination USB Normal Ink Saver USB 1M/ USB 2M Select destination Save (USB only) →VAR Destination File To File Utilities Utilities Save all Save...

  • Page 36: Trigger Key 1/6

    GDS-1000A-U Series User Manual Trigger key 1/6 Select Trigger type or Trigger Trigger Type Trigger Holdoff MENU MENU Holdoff menu Type Type Holdoff Edge 40.0ns Source Set to Minimum Slope / Coupling Mode Auto Trigger key 2/6 Select video trigger type...

  • Page 37: Trigger Key 3/6

    QUICK REFERENCE Trigger key 3/6 Select edge trigger type Edge Trigger Type Edge Edge Source Select trigger source CH1/2/Ext/Line Source Go to slope/coupling menu (page Slope / To Slope/Coupling Coupling Mode Auto/ Normal Auto Slope/Coupling Select trigger mode Mode Trigger key 4/6 Select pulse trigger type Pulse Trigger Type...

  • Page 38: Trigger Key 5/6

    GDS-1000A-U Series User Manual Trigger key 5/6 Select trigger slope type Coupling/Slope Slope Slope Coupling AC/ DC Select trigger coupling mode Rejection LF/ HF/ Off Coupling Noise Rej Select frequency rejection On/ Off Previous Rejection Menu Turn noise rejection on/off...

  • Page 39: Utility Key 1/10 (Utility #1)

    QUICK REFERENCE Utility key 1/10 (Utility #1) Go to hardcopy menu Utility Hardcopy Hardcopy To Hardcopy Go to probe compensation menu menu Menu ProbeComp To Probe ProbeComp Comp menu Menu Select language Language English/ Chinese(T) etc English Language System Info. Show system information Utility #2 menu More...

  • Page 40: Utility Key 3/10 (Utility #3)

    GDS-1000A-U Series User Manual Calibration Utility key 3/10 (Utility #3) Self CAL To Self CAL menu Menu Enter self calibration Calibration Auto Detect USB Port Self CAL Computer To Self CAL menu Self CAL Menu Auto Detect Printer Go to the first Utility menu...

  • Page 41: Utility Key 5/10 (Hardcopy -Save Image)

    QUICK REFERENCE Utility key 5/10 (Hardcopy -Save Image) Hardcopy – Save Image Select Hardcopy function Function Function Save Image Ink Saver Turn on/off Inksaver On/ Off Previous Ink Saver Menu Go to previous menu Previous Menu Utility key 6/10 (Probe compensation) Select probe compensation signal Probe compensation Wave Type...

  • Page 42: Utility Key 7/10 (Go-Nogo)

    GDS-1000A-U Series User Manual Utility key 7/10 (Go-NoGo) Switch between templates Edit Template Max/Min/Auto Template Auto: CH1, CH2 Source Max|Min: Ref A/ Select the template source W 01 Ref B, W01~W15 Tolerance 0.4%~40% Source 0.4DIV~40DIV 0.4% Save & Set the tolerance (% or Divisions) Create →VAR...

  • Page 43: Utility Key 9/10 (Data Logging 2/2)

    QUICK REFERENCE Utility key 9/10 (Data Logging 2/2) Save the logs as waveform data or Edit as image files Save Waveform/Image Waveform Save Interval 2 secs~30 mins 2 secs Set the logging interval Duration 5 mins~100 hrs 5 mins Interval→VAR Set the duration of the record log Previous To previous...

  • Page 44: Default Settings

    GDS-1000A-U Series User Manual Default Settings Here are the factory installed panel settings which Save/Recall Default appear when pressing the Save/Recall key→ Setup Default Setup. Mode: Normal Acquisition Scale: 2V/Div Invert: Off Channel Probe attenuation Coupling: DC voltage: x1 BW limit: Off Channel 1 &...

  • Page 45: Built-In Help

    QUICK REFERENCE Data logging: Off Source: CH1 Data Logging Setup: Waveform Interval: 2 secs Duration: 5 mins Built-in Help The Help key shows the contents of the built-in Help help support. When you press a function key, its descriptions appear in the display. Applicable keys Acquire Display...

  • Page 46: Measurement

    GDS-1000A-U Series User Manual EASUREMENT 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.

  • Page 47: Using Autoset

    MEASUREMENT Channel 1 off Channel 1 on Channel indicator Channel icon To de-activate the channel, press the Channel key De-activating a twice (once if the channel menu is already channel selected). Using Autoset The Autoset function automatically configures the Background panel settings to the best viewing conditions, in the following way.
  • Page 48 GDS-1000A-U Series User Manual 1. Connect the input signal to Autoset Procedure the oscilloscope and press the Autoset key. 2. The waveform(s) appears in the center of the display. Before Autoset After Autoset Type Option Undo option To undo the Autoset, press...

  • Page 49: Running And Stopping The Trigger

    MEASUREMENT Fit Screen AC Priority Autoset does not work in the following situation. Limitation Input signal frequency less than 2Hz  Input signal amplitude less than 30mV  Running and stopping the trigger In the trigger Run mode, the oscilloscope Background constantly searches for a trigger condition and updates the signal onto the display when the...

  • Page 50: Changing The Horizontal Position And Scale

    GDS-1000A-U Series User Manual Waveforms can be moved or scaled in both the Waveform Run and Stop mode. For details, see page 84 operation (Horizontal position/scale) and page 90 (Vertical position/scale). Changing the horizontal position and scale For more detailed configurations, see page 84.

  • Page 51: Changing The Vertical Position And Scale

    MEASUREMENT Horizontal scale: 50us/div Horizontal scale: 250us/div Changing the vertical position and scale For more detailed configuration, see page 90. To move the waveform up or Set vertical down, turn the vertical position position knob for each channel. As the waveform moves, the vertical position of the cursor appears at the bottom left corner of the display.

  • Page 52: Using The Probe Compensation Signal

    GDS-1000A-U Series User Manual Using the probe compensation signal This section introduces how to use Background 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 129.
  • Page 53 MEASUREMENT 4. Press Wave type repeatedly Wave Type to select the wave type. 5. (For only) To change Frequency the frequency, press Frequency and use the VARIABLE Variable knob. 1kHz ~ 100kHz Range 6. (For only) To change Duty Cycle the duty cycle, press Duty Cycle and use the Variable knob.

  • Page 54: Automatic Measurements

    GDS-1000A-U Series User Manual 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.
  • Page 55 MEASUREMENT Global low voltage. Averaged voltage of the first Vavg cycle. RMS (root mean square) Vrms voltage. Rise overshoot voltage. ROVShoot Fall overshoot voltage. FOVShoot Rise preshoot voltage. RPREShoot Fall preshoot voltage. FPREShoot Frequency of the waveform. Time Freq measurement items Waveform cycle time Period...

  • Page 56: Automatic Measurement Gating

    GDS-1000A-U Series User Manual Time between: Source 1 first rising edge and Source 2 first falling edge Time between: Source 1 first falling edge and Source 2 first rising edge Time between: Source 1 first falling edge and Source 2 first falling edge...

  • Page 57: Automatically Measuring The Input Signals

    MEASUREMENT 2. Press the Measure key. Measure 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 57). Horizontal Cursor Gating 4.
  • Page 58 GDS-1000A-U Series User Manual 3. Press the corresponding Editing a Voltage menu key (F1~F5) to select measurement item the measurement slot to be edited. 4. The editing menu appears 5. Use the Variable knob to VARIABLE Change select a different...
  • Page 59 MEASUREMENT 7. Press Source 2 repeatedly to Source 2 change the channel for Source2. CH1, 2, Math Range 8. Press F3 to view all View all Voltage measurement items. measurements 9. All the measurements appear in the center of the screen.

  • Page 60: Cursor Measurements

    GDS-1000A-U Series User Manual 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.

  • Page 61: Using The Vertical Cursors

    MEASUREMENT M1:dB Position of the left cursor in dB. M2:dB Position of the right cursor in dB. ∆: dB The dB difference between M1 and M2. The frequency per division. Div: To move the left cursor, press Moving the horizontal X1 and then use the Variable -5.000uS 0.000uV...

  • Page 62: Math Operations

    GDS-1000A-U Series User Manual The difference between the upper and Y1Y2 lower cursor The voltage/current difference (Y1-Y2). To move the upper cursor, Moving the vertical cursors press Y1 and then use the 123.4mV Variable knob. To move the lower cursor, press Y2 and then use the 12.9mV...

  • Page 63: Adding, Subtracting Or Multiplying Signals

    MEASUREMENT Performs a FFT RMS calculation on a signal. RMS FFT 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. Frequency resolution Good Hanning FFT window Amplitude resolution Not good...

  • Page 64: Using The Fft Function

    GDS-1000A-U Series User Manual 3. Press Operation repeatedly Operation to select addition (+), CH1+CH2 subtraction (–) or multiplication (× ). 4. The math measurement Unit/Div result appears in the display. VARIABLE 5. To move the math result vertically, use the Variable knob.
  • Page 65 MEASUREMENT 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 Vertical vertically, press Vertical 0.00 Div repeatedly until Div is VARIABLE selected.

  • Page 66: Go No-Go Testing

    GDS-1000A-U Series User Manual 10. To move the FFT/FFT rms Zoom waveform horizontally, 0.0000Hz press Zoom repeatedly until VARIABLE Hz is selected. Use the Variable knob to change the horizontal position. 0~50.000MHz Range 11. To clear the FFT result from the display, press the Math key again.

  • Page 67: Edit: Nogo When

    MEASUREMENT Edit: NoGo When 1. Press the Utility key. Utility Procedure 2. Press the More key. More 3. Press No Go When 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)

  • Page 68: Edit: Nogo Violation Conditions

    GDS-1000A-U Series User Manual Edit: NoGo Violation Conditions 1. Press the Utility key. Utility Procedure 2. Press the More key. More 3. Press the Go-NoGo Menu Go-NoGo key. Menu 4. Press Violating repeatedly to Violating select the NoGo conditions. Stop...
  • Page 69 MEASUREMENT Disadvantage: The waveforms (templates) have to be stored internally prior to this selection. Creates the upper and lower Auto 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.
  • Page 70 GDS-1000A-U Series User Manual 7. Press Source and use the Source Variable knob to select the W 01 waveform template. VARIABLE Waveform A: Ref A, W01~W15 Waveform B: Ref B, W01~W15 8. Press Position and use the Source Variable knob to set the W 01 waveform amplitude.
  • Page 71 MEASUREMENT 1. The template is based on the source signal. Auto Ensure the source signal appears on the display. 2. Press the Utility key. Utility 3. Press the More key. More 4. Press the Go-NoGo Menu Go-NoGo key. Menu 5. Press the Template Edit key. Template Edit 6.

  • Page 72: Run Go-Nogo Tests

    GDS-1000A-U Series User Manual 0.04 Div ~ 4.0 Div 9. When the Auto template has Save & been configured, press Save Create & Create to save the template. Auto template Tolerance Source waveform Run Go-NoGo Tests 1. Press the Utility key.

  • Page 73: Data Logging

    MEASUREMENT 4. Press Go-NoGo. The test Go-NoGo starts and stops according to the conditions set on page 67, 68. To stop the test that has already started, press Go-NoGo again. 5. The test results appear in Ratio: the Ratio soft-key. The 2 BMP numerator denotes the total 9 BMP...

  • Page 74: Edit: Source

    GDS-1000A-U Series User Manual Edit: Source 1. Press the Utility key. Utility Procedure 2. Press the More key. More 3. Press the Data logging Menu Data logging key. Menu 4. Press Source repeatedly to Source select the source channel (CH1 or CH2).
  • Page 75 MEASUREMENT 5. Press Save repeatedly to log Save data or screen images. Waveform 6. Press Interval and use the Source Variable knob to select the W 01 interval time. VARIABLE 2 secs~ 2min (duration = 5 min) Interval time 2 secs~ 5 min (duration 5~ 30 min) 2 secs~ 30 min (duration 30+ min) 7.

  • Page 76: Run Data Logging

    GDS-1000A-U Series User Manual Run Data logging Ensure the data source (page 74) and data logging Background setup has been set (page 74). 1. Insert a USB flash drive into Procedure the USB front panel port. 2. Press the Utility key.

  • Page 77: Configuration

    CONFIGURATION ONFIGURATION The Configuration chapter describes how to configure 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.
  • Page 78 GDS-1000A-U Series User Manual Multiple data is averaged to form a Average 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, Peak detect To activate the Peak detect mode, press Peak-Detect.

  • Page 79: Selecting Delay Mode

    CONFIGURATION 7. Press Normal. Normal 8. Press Peak-Detect and see Peak that a spike noise is Detect captured. The peak detect mode reveals the occasional glitch. Example Normal mode Peak detect mode Selecting Delay mode When delay time is ON, the displayed output is Background delayed for a defined amount of time from the trigger point.
  • Page 80 GDS-1000A-U Series User Manual Trigger Expansion Trigger Expansion Point Point Point Point Horizontal scale Horizontal scale With Delay Off the expansion point and trigger Delay Off point are always in the same position. Thus when the horizontal scale is adjusted, the waveform expands from the trigger point.

  • Page 81: Real Time Vs Equivalent Time Sampling Mode

    CONFIGURATION Real time vs Equivalent time sampling mode The oscilloscope automatically switches between Background two sampling modes, Real-time and Equivalent- time, according to the number of active channels and sampling rate. Once sampled data is used to reconstruct a single Real-time waveform.

  • Page 82: Display

    GDS-1000A-U Series User Manual Display The Display section describes how to configure the display settings: drawing type, waveform accumulation, contrast adjustment, and grid settings. Selecting vector or dot drawing 1. Press the Display key. Procedure Display 2. Press Type repeatedly to...

  • Page 83: Adjusting The Display Contrast

    CONFIGURATION Example Accumulation off Accumulation on Adjusting the display contrast Display 1. Press the Display key. Procedure 2. Press Contrast. Contrast 3. Turn the Variable knob left VARIABLE to lower the contrast (dark display) or right to raise the contrast (bright display). Selecting the display grid 1.

  • Page 84: Horizontal View

    GDS-1000A-U Series User Manual Horizontal View The Horizontal view section describes how to configure the horizontal scale, position, waveform update mode, window zoom, and X-Y mode. Moving the waveform position horizontally The horizontal position knob Procedure moves the waveform left or right.

  • Page 85: Selecting The Waveform Update Mode

    CONFIGURATION Selecting the waveform update mode The display update mode is switched Background automatically or manually according to the horizontal scale. Updates the whole displayed waveform at once. Main mode The main mode is automatically selected when the horizontal scale (timebase) is fast. Horizontal scale ≤100ms/div All modes available Trigger...

  • Page 86: Zooming The Waveform Horizontally

    GDS-1000A-U Series User Manual Zooming the waveform horizontally Procedure/ range 1. Press the Horizontal Menu MENU key. 2. Press Window. Window 3. Use the horizontal position knob to move the zoom range sideways, and TIME/DIV TIME/DIV knob to change the zoom range width.

  • Page 87: Viewing Waveforms In The X-Y Mode

    CONFIGURATION Viewing waveforms in the X-Y mode The X-Y mode compares the voltage of Channel 1 Background and Channel 2 waveforms in a single display. This mode is useful for observing the phase relationship between the two waveforms. 1. Connect the signals to Procedure Channel 1 (X-axis) and Channel 2 (Y-axis).

  • Page 88: Horizontal Adjustment Menu

    GDS-1000A-U Series User Manual Horizontal Adjustment Menu The horizontal adjustment menu allows markers to Background 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).
  • Page 89 CONFIGURATION Navigate markers 7. Press Previous to go to the Previous previous marker. 180.0uS 8. Press Next to go to the next Next marker. 340.0uS Position Indicator Marker...

  • Page 90: Vertical View (Channel)

    GDS-1000A-U Series User Manual 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 To move the waveform up or Procedure down, turn the vertical position knob for each channel.

  • Page 91: Expand Vertical Scale Center / Ground

    CONFIGURATION 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 components. Expand Vertical Scale Center / Ground Normally when the vertical scale is increased, the Background scaled image is centered from ground.

  • Page 92: Inverting The Waveform Vertically

    GDS-1000A-U Series User Manual 1. Press the Channel key. CH 1 Procedure 2. Press F5 to toggle between Expand Expand Center and Expand Center Ground. 3. To change the vertical scale, VOLTS/DIV turn the VOLTS/DIV knob; left (down) or right (up).

  • Page 93: Limiting The Waveform Bandwidth

    CONFIGURATION Limiting the waveform bandwidth Bandwidth limitation puts the input signal into a Background 20MHz (−3dB) low-pass filter. This function is useful for cutting off high frequency noise to see the clear waveform shape. 1. Press the Channel key. CH 1 Procedure 2.
  • Page 94 GDS-1000A-U Series User Manual 2. Press F4 repeatedly to select Voltage voltage or current probes. 3. Use the variable knob to VARIABLE edit the voltage or current attenuation. 4. The voltage/current scale in the channel indicator changes accordingly. There is no change in the waveform shape.

  • Page 95: Trigger

    CONFIGURATION Trigger The Trigger function configures the conditions by which the oscilloscope captures the incoming signals. Trigger type Triggers when the signal crosses an amplitude Edge threshold in either a positive or negative slope. Extracts a sync pulse from a video format signal Video and triggers on a specific line or field.
  • Page 96 GDS-1000A-U Series User Manual The Auto trigger status appears in the upper right corner of the display. The oscilloscope acquires the SINGLE Single input signals once when a trigger event occurs, then stops acquiring. Pressing the Single key again will repeat the process.

  • Page 97: Configuring Holdoff

    CONFIGURATION 1~263 for NTSC, 1~313 for PAL/SECAM line Sets the pulse width (20ns ~ 10s) and the triggering Pulse condition (pulse trigger) condition. Longer than Equal to > Shorter than ≠ Not equal to < Triggers on the rising edge. Trigger slope Triggers on the falling edge.

  • Page 98: Configuring The Edge Trigger

    GDS-1000A-U Series User Manual Pressing Set to Minimum Holdoff sets the Holdoff time to the 40.0ns minimum, 40ns. Note: The holdoff function is automatically disabled when the waveform update mode is in Roll mode. Configuring the edge trigger 1. Press the Trigger menu key.

  • Page 99: Configuring The Video Trigger

    CONFIGURATION 7. Press Coupling repeatedly to Coupling select the trigger coupling, DC or AC. DC, AC Range 8. Press Rejection to select the Rejection frequency rejection mode. LF, HF, Off Range 9. Press Noise Rej to turn the Noise Rej noise rejection on or off.

  • Page 100: Configuring The Pulse Width Trigger

    GDS-1000A-U Series User Manual 4. Press Standard repeatedly to Standard select the video standard. NTSC NTSC, PAL, SECAM Range 5. Press Polarity repeatedly to Polarity select the video signal polarity. positive, negative Range 6. Press Line repeatedly to Line select the video field line.
  • Page 101 CONFIGURATION 4. Press Mode repeatedly to Mode select the trigger mode, Auto Auto or Normal. To select the Single trigger mode, SINGLE press the Single key. Auto, Normal Range 5. Press When repeatedly to When < select the pulse condition. 20.0ns Then use the Variable knob VARIABLE...

  • Page 102: Manually Triggering The Signal

    GDS-1000A-U Series User Manual 10. Press Noise Rej to turn the Noise Rej noise rejection on or off. On, Off Range 11. Press Previous menu to go Previous back to the previous menu. Menu Manually triggering the signal Note: This section describes how to manually trigger the input signals when the oscilloscope does not capture them.

  • Page 103: Remote Control Interface

    CONFIGURATION Remote Control Interface The Remote control interface section describes how to set up the USB interface for PC connection. Remote control command details are described in the GDS-1000A-U Programming Manual. Type A, host USB connection PC end GDS-1000A-U end Type B, slave 1.1/2.0 (full speed) Speed 1.

  • Page 104: System Settings

    GDS-1000A-U Series User Manual System Settings The system settings show the oscilloscope’s system information and allow changing the language. Viewing the system information 1. Press the Utility key. Procedure Utility 2. Press System Info. The upper System half of the display shows the Info.
  • Page 105 CONFIGURATION 1. Press the Utility key. Utility Procedure 2. Press Language repeatedly to Language select the language. English...

  • Page 106: Save/Recall

    GDS-1000A-U Series User Manual AVE/RECALL The save function allows saving display images, waveform data, and panel settings into the oscilloscope’s internal memory or to the front panel USB port. The recall function allows recalling the default factory settings, waveform data, and panel settings from the oscilloscope’s internal memory or from USB.
  • Page 107 SAVE/RECALL Contains the waveform amplitude and Detail time of each point (4k/1M/2M) relative to the trigger point. Only contains the waveform Fast amplitude data for each point (4k/1M/2M). Input channel signal Waveform type CH1, 2 Math operation result (page 62) Math The oscilloscope’s internal memory, Storage location...
  • Page 108 GDS-1000A-U Series User Manual Note: 2M point memory lengths are only available for time bases slower than 10ns/div on a single channel, and 1 M point memory lengths are only available for time bases slower than 25ns/div on two channels.

  • Page 109: Setup File Format

    SAVE/RECALL Setup file format xxxx.set (proprietary format) Format A setup file saves or recalls the following settings. mode Acquire  Contents source channel cursor on/off Cursor   cursor location  accumulation dots/vectors Display   on/off grid type  item Measure ...

  • Page 110: Using The Usb File Utilities

    GDS-1000A-U Series User Manual Using the USB file utilities When a USB flash drive is inserted into the Background oscilloscope, file utilities (file deletion, folder creation and file/folder renaming) are available from the front panel. 1. Insert a USB flash drive into Procedure the front panel USB port.
  • Page 111 SAVE/RECALL 1. Move the cursor to the file Creating a new or folder location and press folder / renaming Folder a file or folder New Folder or Rename. The file/folder name and the Rename character map will appear on the display. 2.

  • Page 112: Quick Save (Hardcopy)

    GDS-1000A-U Series User Manual Quick Save (HardCopy) The Hardcopy key works as a Hardcopy Background shortcut for saving display images, waveform data, and panel settings onto a USB flash drive card. The Hardcopy key can be configured into two types of operations: save image and save all (image, waveform, setup).
  • Page 113 SAVE/RECALL 5. To invert the color in the Ink Saver display image, press Ink Saver. This turns Ink Saver on or off. 6. If Save Image was selected, Mem Leng press Mem Leng repeatedly USB 1M to select USB Normal or USB 1M/2M.

  • Page 114: Save

    GDS-1000A-U Series User Manual Save This section describes how to save data using the Save/Recall menu. File type/source/destination Item Source Destination Internal memory: S1 ~ Panel settings Panel setup   (xxxx.set) External memory: USB  Channel 1, 2 Internal memory: W1 ~ Waveform data ...

  • Page 115: Saving The Panel Settings

    SAVE/RECALL Saving the panel settings 1. (For saving to USB flash Procedure drive) Insert the USB flash drive into the front panel USB port. 2. Press the Save/Recall key Save/Recall Save/Recall twice to access the Save menu. 3. Press Save Setup. Save Setup 4.

  • Page 116: Saving The Waveform

    GDS-1000A-U Series User Manual To edit the USB drive contents File utilities File (create/ delete/ rename files Utilities and folders), press File Utilities. For details, see page 110. Saving the waveform 1. (For saving to USB flash Procedure drive) Insert the USB flash drive into the front panel USB port.
  • Page 117 SAVE/RECALL Internal memory, W1 ~ W15 Memory Save to the USB flash drive with a 4k waveform memory length. Normal Save to the USB flash drive with a USB 1M 1M waveform memory length. For 2 channel operation only. Save to the USB flash drive with a USB 2M 2M waveform memory length.

  • Page 118: Saving The Display Image

    GDS-1000A-U Series User Manual Saving the display image Saving the display image can be used as a screen Background capture or it can be used as a reference waveform. 1. Insert the USB flash drive Procedure into the front panel USB port.

  • Page 119: Saving All (Panel Settings, Display Image, Waveform)

    SAVE/RECALL Saving all (panel settings, display image, waveform) 1. (For saving to USB flash Procedure drive) Insert the USB flash drive into the front panel USB port. 2. Press the Save/Recall key Save/Recall Save/Recall twice to access the Save menu. 3.
  • Page 120 GDS-1000A-U Series User Manual Save to the USB flash drive with a USB 1M 1M waveform memory length. For 2 channel operation only. Save to the USB flash drive with a USB 2M 2M waveform memory length. For single channel operation only.

  • Page 121: Recall

    SAVE/RECALL Recall File type/source/destination Item Source Destination Factory installed Current front panel Default panel   setting setup Internal memory: A, B Current front panel Reference   waveform Internal memory: S1 ~ Current front panel Panel setup   (DSxxxx.set) External memory: USB ...

  • Page 122: Recalling The Default Panel Settings

    GDS-1000A-U Series User Manual Recalling the default panel settings 1. Press the Save/Recall key. Save/Recall Procedure 2. Press Default Setup. The Default factory installed setting will Setup be recalled. The following is the default panel setting contents. Setting contents Mode: Normal...

  • Page 123: Recalling A Reference Waveform To The Display

    SAVE/RECALL Recalling a reference waveform to the display 1. The reference waveform must be stored in Procedure advance. See page 116 for details. 2. Press the Save/Recall key. Save/Recall 3. Press Display Refs. The Display reference waveform display Refs. menu appears. 4.

  • Page 124: Recalling A Waveform

    GDS-1000A-U Series User Manual 3. Press Recall Setup. Recall Setup 4. Press Source repeatedly to Source select the file source, Memory internal or external VARIABLE memory. Use the Variable knob to change the memory. Internal memory, S1 ~ S15 Memory USB flash drive, DSXXXX.SET.
  • Page 125 SAVE/RECALL 3. Press Recall Waveform. The Recall display shows the available Waveform source and destination options. 4. Press Source repeatedly to Source select the file source, Memory internal memory or USB. VARIABLE Use the Variable knob to change the memory location (W1 ~ W15)/DSXXXX.CSV.

  • Page 126: Recall Image

    GDS-1000A-U Series User Manual To edit the USB drive contents File utilities File (create/ delete/ rename files Utilities and folders), press File Utilities. For details, see page 110. Recall Image Recall Image is useful for recalling reference Background images that would not be possible using the Recall Waveform function, such as in X-Y mode.
  • Page 127 SAVE/RECALL 4. Use the Variable knob to VARIABLE choose a file name (DSXXXX.BMP). The image file must be placed in the root directory to be recognized. 5. Press Recall to confirm Recall recalling. When completed, a message appears at the bottom of the display.

  • Page 128: Maintenance

    GDS-1000A-U Series User Manual AINTENANCE Two types of maintenance operations are available: calibrating the vertical resolution, and compensating the probe. Run these operations when using the oscilloscope in a new environment. Vertical Resolution Calibration 1. Press the Utility key. Procedure Utility 2.

  • Page 129: Probe Compensation

    MAINTENANCE 7. The Channel1 calibration Ch1 calibration 1/3 will complete in less than 5 minutes. 8. When finished, connect the Done!! calibration signal to the Channel 2 input and repeat the procedure. 9. When the calibration is complete the display will go back to the previous state.
  • Page 130 GDS-1000A-U Series User Manual 4. Press Wavetype repeatedly to Wave Type select the standard square wave. 5. Press the Autoset key. The Autoset compensation signal will appear in the display. 6. Press the Display key, then Display Type Type to select the vector Vectors waveform.

  • Page 131: Faq

    • The input signal does not appear in the display. • I want to remove some contents from the display. • The waveform does not update (frozen). • The probe waveform is distorted. • Autoset does not catch the signal well. •...

  • Page 132: The Waveform Does Not Update (Frozen)

    GDS-1000A-U Series User Manual The waveform does not update (frozen). Press the Run/Stop key to unfreeze the waveform. See page 49 for details. For trigger setting details, see page 95. If this does not help, press the CH key. If the signal still does not appear, press the Autoset key.

  • Page 133: The Accuracy Does Not Match The Specifications

    The accuracy does not match the specifications. Make sure the device is powered on for at least 30 minutes, within +20°C~+30°C. This is necessary to stabilize the unit to match the specification. The oscilloscope will not allow a 2M waveform to be saved. Make sure that only 1 channel is active.

  • Page 134: Appendix

    GDS-1000A-U Series User Manual PPENDIX Fuse Replacement 1. Remove the power cord and remove the fuse Procedure socket using a minus driver. 2. Replace the fuse in the holder. T1A, 250V Ratings...

  • Page 135: Gds-1000A-U Series Specifications

    APPENDIX GDS-1000A-U Series Specifications The specifications apply when the oscilloscope is powered on for at least 30 minutes under +20°C~+30°C. Model-specific specifications GDS-1072A-U Bandwidth (–3dB) DC coupling: DC ~ 70MHz AC coupling: 10Hz ~ 70MHz Bandwidth Limit 20MHz (−3dB) Trigger Sensitivity 0.5div or 5mV (DC ~ 25MHz) 1.5div or 15mV (25MHz~70MHz)

  • Page 136: Common Specifications

    GDS-1000A-U Series User Manual Common specifications Vertical Sensitivity 2mV/div~10V/Div (1-2-5 increments) Accuracy ± (3% x |Readout|+0.1div + 1mV) Bandwidth See model-specific specifications Rise Time See model-specific specifications Input Coupling AC, DC, Ground Input Impedance 1MΩ±2%, ~15pF Polarity Normal, Invert Maximum Input 300V (DC+AC peak), CAT II +, –, ×, FFT, FFT rms...
  • Page 137 APPENDIX Cursors and Voltage Vpp, Vamp, Vavg, Vrms, Vhi, Vlo, Vmax, Measurement Vmin, Rise Preshoot/ Overshoot, Fall Preshoot/ Overshoot Time Freq, Period, Rise Time, Fall Time, + Width, – Width, Duty Cycle Delay FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF Cursors Voltage difference (ΔV) and Time difference (ΔT) between cursors...

  • Page 138: Probe Specifications

    GDS-1000A-U Series User Manual Probe Specifications GDS-1072A-U Probe Applicable model & GDS-1072A-U probe GTP-070A-4* Position x 10 Attenuation Ratio 10:1 Bandwidth DC ~ 70MHz Input Resistance 10MΩ when used with 1MΩ input Input Capacitance 28pF~32pF ≤600Vpk, Derating with frequency Maximum Input...

  • Page 139: Gds-1152A-U Probe

    –10°C ~ 55°C ≤85% @35°C Relative Humidity Safety Standard EN 61010-031 CAT II * Note: GW Instek reserves the right to change the probe model type (GTP-070A-4, GTP-100A-4, GTP-150A-2) at anytime without notice for probe model types of similar specification.

  • Page 140: Dimensions

    GDS-1000A-U Series User Manual Dimensions 341.5 159.0 115.1 Acquire Display Utility Help Autoset VARIABLE Cursor Measure Save/Recall Hardcopy Run/Stop VERTICAL HORIZONTAL TRIGGER LEVEL CH 1 MATH CH 2 MENU MENU SINGLE VOLTS/DIV VOLTS/DIV TIME/DIV FORCE EXT TRIG Digital Storage Oscilloscope...

  • Page 141: Ec Declaration Of Conformity

    APPENDIX EC Declaration of Conformity GOOD WILL INSTRUMENT CO., LTD. No.7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan GOOD WILL INSTRUMENT (SUZHOU) CO., LTD. No. 69, Lushan Road, Suzhou New District Jiangsu, China declares that the below mentioned product GDS-1072A-U, GDS-1102A-U, GDS-1152A-U Are herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Law of Member States...
  • Page 142 GDS-1000A-U Series User Manual NDEX 2M memory length limits ..107 menu tree ........25 specification ........ 137 AC coupling ....... 91 Cycle time measure ....55 Accumulating waveform ..82 Data logging Acquisition ......... 77 menu tree ........42 menu tree ........

  • Page 143: Index

    INDEX pollution degree ......11 Holdoff ........97 Environment ......137 Horizontal ........84 safety instructions......10 basic operation ......50 Equivalent time sampling ..81 cursor operation ......60 Expand Center ......91 menu tree ........27 position .......... 84 Expand Ground ......91 scale ..........
  • Page 144 GDS-1000A-U Series User Manual compensation signal overview ... 52 recall menu tree ......31 faq..........132 save menu tree ......33 peak detect demonstration ..78 Single trigger ......102 Pulse time measure ....55 Single trigger mode ....96 Pulse width trigger ....
  • Page 145 INDEX save ..........116 X-Y mode ......87, 88 save menu tree ......34 specification ........ 136 x-y mode ........87, 88 Zoom waveform ......86 zoom mode ........86 Waveform accumulation ..82...

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