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-112AUEA1
ISO-9001 CERTIFIED MANUFACTURER
1.800.561.8187
information@itm.com
www.
.com

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  • Page 1 Digital Storage Oscilloscope GDS-1000A-U Series USER MANUAL GW INSTEK PART NO. 82DS-112AUEA1 ISO-9001 CERTIFIED MANUFACTURER 1.800.561.8187 information@itm.com www. .com...
  • Page 2 April 2011 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 ..............
  • Page 4 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  ...
  • Page 5 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 ..........
  • Page 6 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  ...
  • Page 7 The oscilloscope will not allow a 2M waveform to be saved.   .................... 139 APPENDIX ............ 140   Fuse Replacement ............140   GDS-1000A-U Series Specifications ......... 141     Model-specific specifications ..........141   Common specifications ............. 142 Probe Specifications ............144  ...

  • 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 TFT color, 320 x 234 resolution, wide angle view LCD display LCD display. Activates the functions which Function keys: F1 (top) to appear in the left side of the LCD F5 (bottom) display. VARIABLE Increases or decreases values and Variable knob moves to the next or previous...
  • Page 16 GDS-1000A-U Series User Manual Utility Configures the Hardcopy function Utility key (page 115), shows the system status (page 107), selects the menu language (page 107), runs the self calibration (page 134), configures the probe compensation signal (page 135), and selects the USB host type(page 104).
  • Page 17 GETTING STARTED FORCE Acquires the input signal once Trigger force key regardless of the trigger condition at the time (page 103). MENU Configures the horizontal view Horizontal menu (page 85). Moves the waveform horizontally Horizontal position knob (page 85). TIME/DIV Selects the horizontal scale (page TIME/DIV knob 85).
  • Page 18 GDS-1000A-U Series User Manual EXT TRIG Accepts an external trigger signal External trigger (page 96). input Powers the oscilloscope on or off. Power switch 1.800.561.8187 information@itm.com www. .com...

  • Page 19: Rear Panel

    GETTING STARTED Rear Panel Power cord socket accepts the AC Power cord mains, 100 ~ 240V, 50/60Hz. socket The fuse socket holds the AC main Fuse socket fuse, T1A/250V. For the fuse replacement procedure, see page 140. Accepts a type B (slave) male USB USB slave port connector for remote control of the oscilloscope (page 104) or to print...

  • Page 20: Display

    GDS-1000A-U Series User Manual Display 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 STOP For trigger setting details, see page 96.

  • Page 21: Setting Up The Oscilloscope

    GETTING STARTED 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 22 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. 8. Press the Autoset key. A square waveform will appear in the center of the display.
  • Page 23 GETTING STARTED Over Under Normal Compensation Compensation 11. Setting up the oscilloscope is complete. You may continue with the other operations. Measurement: page 47 Configuration: page 78 1.800.561.8187 information@itm.com www. .com...

  • Page 24: Quick Reference

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

  • Page 25: Ch1/Ch2 Key

    QUICK REFERENCE 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 CH1/CH2 key CH 1 Turn channel on/off CH 1/2 Coupling...

  • Page 26: Cursor Key 1/2

    GDS-1000A-U Series User Manual Cursor key 1/2 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 Cursor key 2/2 Cursor Turn cursor on/off...

  • Page 27: Display Key

    QUICK REFERENCE Display key Display Select waveform type 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 Autoset Automatically find the signal and set the scale Autoset Type...

  • Page 28: Help Key

    GDS-1000A-U Series User Manual Help key Turn help mode on/off Help Horizontal menu key Switch from Horizontal Menu Horizontal MENU to Horizontal Position Menu. Select main (default) display Main Select window mode Window→TIME/DIV Zoom in window mode Window Zoom Select window roll mode...

  • Page 29: Math Key 1/2 (+/-/X)

    QUICK REFERENCE Math key 1/2 (+/-/x) MATH Math on/off 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 Unit/Div→VOLTS/DIV(CH2) 1.800.561.8187 information@itm.com...

  • Page 30: Math Key 2/2 (Fft/Fft Rms)

    GDS-1000A-U Series User Manual Math key 2/2 (FFT/FFT rms) MATH Math on/off CH1+CH2 CH1-CH2 Math CH1xCH2 Operation FFT rms Select math operation type (+/– /x/FFT/FFT rms) Source CH1/2 Operation Window Flattop/ Rectangular/ Hanning Blackman/ Select FFT source channel Hanning Vertical...

  • Page 31: Measure Key

    QUICK REFERENCE 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. 76.20us Menu 2.

  • Page 32: Save/Recall Key 1/10

    GDS-1000A-U Series User Manual Save/Recall key 1/10 Switch to Save or Recall menu Save/Recall Recall default setup Default Setup Change CSV format CSV Format Save/Recall key 2/10 Select other menu Recall Setup Select setup source →VAR Source Recall setup Recall...

  • Page 33: Save/Recall Key 3/10

    QUICK REFERENCE Save/Recall key 3/10 Select other menu Recall Waveform Select waveform source →VAR Source Select waveform destination Destination→VAR Recall waveform Recall Go to USB file utilities File Utilities Save/Recall key 4/10 Select other menu Recall Image Turn reference image on/off Ref image Recall waveform Recall...

  • Page 34: Save/Recall Key 5/10

    GDS-1000A-U Series User Manual Save/Recall key 5/10 Select other menu Display Refs. Turn ref. waveform A on/off Ref.A Turn ref. waveform B on/off Ref.B Save/Recall key 6/10 Select other menu Save Setup Select destination →VAR Destination Save setup Save Go to USB file utilities File Utilities 1.800.561.8187...

  • Page 35: Save/Recall Key 7/10

    QUICK REFERENCE Save/Recall key 7/10 Select other menu Save Waveform Select source →VAR Source Select destination →VAR Destination Save waveform Save Go to USB file utilities File Utilities Save/Recall key 8/10 Select other menu Save Image Turn on/off ink saver Ink Saver Save image Save...

  • Page 36: Save/Recall Key 9/10

    GDS-1000A-U Series User Manual Save/Recall key 9/10 Select other menu Save All Turn on/off ink saver Ink Saver Select destination →VAR Destination Save all Save Go to USB file utilities File Utilities Save/Recall key 10/10 File Utilities Select file/folder Enter Select →Select...

  • Page 37: Trigger Key 1/6

    QUICK REFERENCE Trigger key 1/6 Trigger Type Select Trigger type or Trigger 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 Type Select trigger source Source Select video standard...

  • Page 38: Trigger Key 3/6

    GDS-1000A-U Series User Manual Trigger key 3/6 Select edge trigger type Edge Select trigger source Source Go to slope/coupling menu (page Slope/Coupling Select trigger mode Mode Trigger key 4/6 Select pulse trigger type Type Select trigger source Source Select pulse trigger condition and pulse width →VAR...

  • Page 39: Trigger Key 5/6

    QUICK REFERENCE Trigger key 5/6 Coupling/Slope Select trigger slope type 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 Noise Rej Go back to previous menu Previous Menu Trigger key 6/6...

  • Page 40: Utility Key 1/11 (Utility #1)

    GDS-1000A-U Series User Manual Utility key 1/11 (Utility #1) Go to hardcopy menu Hardcopy Go to probe compensation menu ProbeComp Select language Language Show system information System Info. Go to the next Utility menu More Utility 2/11 (Utility #2) Go to the Go-NoGo menu...

  • Page 41: Utility Key 3/11 (Utility #3)

    QUICK REFERENCE Utility key 3/11 (Utility #3) Enter self calibration Self CAL Select USB port interface USB Port Go to the first Utility menu More Utility key 4/11 (Hardcopy -Save All) Select Hardcopy function Hardcopy – Save All Function Function Save All Ink Saver Turn on/off Ink saver...

  • Page 42: Utility Key 5/11 (Hardcopy -Printer)

    GDS-1000A-U Series User Manual Utility key 5/11 (Hardcopy -Printer) Select Hardcopy function Function Turn on/off Ink saver Ink Saver Set default page size Page Size Go to previous menu Previous Menu Utility key 6/11 (Hardcopy -Save Image) Select Hardcopy function...

  • Page 43: Utility Key 7/11 (Probe Compensation)

    QUICK REFERENCE Utility key 7/11 (Probe compensation) Probe compensation Select probe compensation signal Wave Type Wave Type Frequency only) Set frequency for square wave 1k ~ 100k Duty Cycle only) Frequency→VAR 5% ~ 95% Default Set duty cycle for square wave 1kHz Previous Duty Cycle→VAR...

  • Page 44: Utility Key 9/11 (Data Logging 1/2)

    GDS-1000A-U Series User Manual Utility key 9/11 (Data Logging 1/2) Turn Data Logging On/Off Data logging Set the logging source Source Go to the Data Logging Edit menu Setup Go to the File Utilities menu File Utilities Go back to previous menu...

  • Page 45: Default Settings

    QUICK REFERENCE Default Settings Here are the factory installed panel settings which appear when pressing the Save/Recall key→ Default Setup. Mode: Normal Acquisition Scale: 2V/Div Invert: Off Channel Coupling: DC Probe attenuation voltage: x1 BW limit: Off Channel 1 & 2: On Source: CH1 Cursor: Off Cursor...

  • Page 46: Built-In Help

    GDS-1000A-U Series User Manual Data logging: Off Source: CH1 Data Logging Setup: Waveform Interval: 2 secs Duration: 5 mins Built-in Help Help The Help key shows the contents of the built-in help support. When you press a function key, its descriptions appear in the display.

  • Page 47: Measurement

    MEASUREMENT 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. Basic Measurements This section describes the basic operations required in capturing and viewing an input signal.

  • Page 48: Using Autoset

    GDS-1000A-U Series User Manual To de-activate the channel, press the Channel key De-activating a channel twice (once if the channel menu is already selected). Using Autoset The Autoset function automatically configures the Background panel settings to the best viewing conditions, in the following way.
  • Page 49 MEASUREMENT Autoset 1. Connect the input signal to Procedure the oscilloscope and press the Autoset key. 2. The waveform(s) appears in the center of the display. To undo the Autoset, press Undoing the Autoset Undo (available for a few seconds). LEVE L If the waveform is still Adjusting the...

  • Page 50: Running And Stopping The Trigger

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

  • Page 51: Changing The Horizontal Position And Scale

    MEASUREMENT Waveforms can be moved or scaled in both the Waveform Run and Stop mode. For details, see page 85 operation (Horizontal position/scale) and page 91 (Vertical position/scale). Changing the horizontal position and scale For more detailed configurations, see page 85. The horizontal position knob Setting the horizontal...

  • Page 52: Changing The Vertical Position And Scale

    GDS-1000A-U Series User Manual Changing the vertical position and scale For more detailed configuration, see page 91. To move the waveform up or Set vertical position down, turn the vertical position knob for each channel. As the waveform moves, the vertical position of the cursor appears at the bottom left corner of the display.

  • Page 53: Using The Probe Compensation Signal

    MEASUREMENT 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 135.
  • Page 54 GDS-1000A-U Series User Manual 4. Press Wave type repeatedly to select the wave type. 5. (For only) To change the frequency, press Frequency and use the VARIABLE Variable knob. 1kHz ~ 100kHz Range 6. (For only) To change the duty cycle, press Duty Cycle and use the Variable knob.

  • Page 55: Automatic Measurements

    MEASUREMENT 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 56 GDS-1000A-U Series User Manual 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.

  • Page 57: Automatic Measurement Gating

    MEASUREMENT 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 Time between: Source 1 first rising edge and Source 2 last rising edge...

  • Page 58: Automatically Measuring The Input Signals

    GDS-1000A-U Series User Manual Measure 2. Press the Measure key. 3. The measurement results appear on the menu bar, constantly updated. All measurements are derived from the cursor positions. See Automatically measuring the input signals for more details (page 58).
  • Page 59 MEASUREMENT 3. Press the corresponding Editing a measurement menu key (F1~F5) to select item the measurement slot to be edited. 4. The editing menu appears VARIABLE 5. Use the Variable knob to Change measurement select a different item measurement item. 6.
  • Page 60 GDS-1000A-U Series User Manual 7. Press Source 2 repeatedly to change the channel for Source2. CH1, 2, Math Range 8. Press F3 to view all View all measurement items. measurements 9. All the measurements appear in the center of the screen.

  • Page 61: Cursor Measurements

    MEASUREMENT 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 62: Using The Vertical Cursors

    GDS-1000A-U Series User Manual 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. Div: The frequency per division. To move the left cursor, press...

  • Page 63: Math Operations

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

  • Page 64: Adding, Subtracting Or Multiplying Signals

    GDS-1000A-U Series User Manual 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.

  • Page 65: Using The Fft Function

    MEASUREMENT 3. Press Operation repeatedly to select addition (+), subtraction (–) or multiplication (×). 4. The math measurement result appears in the display. VARIABLE 5. To move the math result vertically, use the Variable knob. The position will be displayed in Position. 6.
  • Page 66 GDS-1000A-U Series User Manual 5. The FFT result appears. The horizontal scale changes from time to frequency, and the vertical scale from voltage to dB or RMS. 6. To move the FFT waveform vertically, press Vertical repeatedly until Div is VARIABLE selected.

  • Page 67: Go No-Go Testing

    MEASUREMENT 10. To move the FFT/FFT rms waveform horizontally, 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 68: Edit: Nogo When

    GDS-1000A-U Series User Manual Edit: NoGo When Utility 1. Press the Utility key. Procedure 2. Press the More key. 3. Press No Go When repeatedly to select the NoGo conditions. NoGo when the waveform is inside the boundary (template) NoGo when the waveform is...

  • Page 69: Edit: Nogo Violation Conditions

    MEASUREMENT Edit: NoGo Violation Conditions Utility 1. Press the Utility key. Procedure 2. Press the More key. 3. Press the Go-NoGo Menu key. 4. Press Violating repeatedly to select the NoGo conditions. Stops the test when the NoGo Stop conditions have been met. The tests continue even when the Continue NoGo conditions have been met.
  • Page 70 GDS-1000A-U Series User Manual 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.
  • Page 71 MEASUREMENT 7. Press Source and use the Variable knob to select the waveform template. VARIABLE Waveform A: Ref A, W01~W15 Waveform B: Ref B, W01~W15 8. Press Position and use the Variable knob to set the waveform amplitude. VARIABLE 9. Repeat steps 5-7 for the other template setting (Max or Min).
  • Page 72 GDS-1000A-U Series User Manual 1. The template is based on the source signal. Auto Ensure the source signal appears on the display. Utility 2. Press the Utility key. 3. Press the More key. 4. Press the Go-NoGo Menu key. 5. Press the Template Edit key.

  • Page 73: Run Go-Nogo Tests

    MEASUREMENT 0.04 Div ~ 4.0 Div 9. When the Auto template has been configured, press Save & Create to save the template. Run Go-NoGo Tests 1. Press the Utility key. Utility Procedure 2. Press the More key. 3. Press the Go-NoGo Menu key.

  • Page 74: Data Logging

    GDS-1000A-U Series User Manual 4. Press Go-NoGo. The test starts and stops according to the conditions set on page 68, 69. To stop the test that has already started, press Go-NoGo again. 5. The test results appear in the Ratio soft-key. The numerator denotes the total number of failed tests.

  • Page 75: Edit: Source

    MEASUREMENT Edit: Source Utility 1. Press the Utility key. Procedure 2. Press the More key. 3. Press the Data logging Menu key. 4. Press Source repeatedly to select the source channel (CH1 or CH2). Edit: Setup Parameters The logging function must set the type of data that Background will be logged (waveform/image), the capture interval time and the duration of the data logging.
  • Page 76 GDS-1000A-U Series User Manual 5. Press Save repeatedly to log data or screen images. 6. Press Interval and use the Variable knob to select the 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 77: Run Data Logging

    MEASUREMENT Run Data logging Ensure the data source (page 75) and data logging Background setup has been set (page 75). 1. Insert a USB flash drive into Procedure the USB front panel port. Utility 2. Press the Utility key. 3. Press the More key. 4.

  • Page 78: Configuration

    GDS-1000A-U Series User Manual 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 79 CONFIGURATION 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 80: Selecting Delay Mode

    GDS-1000A-U Series User Manual 7. Press Normal. 8. Press Peak-Detect and see that a spike noise is 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...
  • Page 81 CONFIGURATION 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. Acquire 1. Press the Acquire key. Procedure 2. Press Delay On/Off to toggle Delay On/Off.

  • Page 82: Real Time Vs Equivalent Time Sampling Mode

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

  • Page 83: Display

    CONFIGURATION 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 Display 1. Press the Display key. Procedure 2. Press Type repeatedly to select the waveform drawing.

  • Page 84: Adjusting The Display Contrast

    GDS-1000A-U Series User Manual Example Accumulation off Accumulation on Adjusting the display contrast Display 1. Press the Display key. Procedure 2. Press Contrast. VARIABLE 3. Turn the Variable knob left to lower the contrast (dark display) or right to raise the contrast (bright display).

  • Page 85: Horizontal View

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

  • Page 86: Selecting The Waveform Update Mode

    GDS-1000A-U Series User Manual 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.

  • Page 87: Zooming The Waveform Horizontally

    CONFIGURATION Zooming the waveform horizontally MENU Procedure/ range 1. Press the Horizontal Menu key. 2. Press 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. The width of the bar in the middle of the display is the actual zoomed area.

  • Page 88: Viewing Waveforms In The X-Y Mode

    GDS-1000A-U Series User Manual 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.

  • Page 89: Horizontal Adjustment Menu

    CONFIGURATION 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). There can be up to 30 markers linked together.
  • Page 90 GDS-1000A-U Series User Manual Navigate markers 7. Press Previous to go to the previous marker. 8. Press Next to go to the next marker. Position Indicator Marker 1.800.561.8187 information@itm.com www. .com...

  • Page 91: Vertical View (Channel)

    CONFIGURATION 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. Selecting the vertical scale VOLTS/DIV To change the vertical scale,...

  • Page 92: Expand Vertical Scale Center / Ground

    GDS-1000A-U Series User Manual 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 93: Inverting The Waveform Vertically

    CONFIGURATION CH 1 1. Press the Channel key. Procedure 2. Press F5 to toggle between Expand Center and Expand Ground. VOLTS/DIV 3. To change the vertical scale, turn the VOLTS/DIV knob; left (down) or right (up). The vertical scale indicator on the bottom left of the display changes accordingly.

  • Page 94: Limiting The Waveform Bandwidth

    GDS-1000A-U Series User Manual 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. CH 1 1. Press the Channel key.
  • Page 95 CONFIGURATION 2. Press F4 repeatedly to select voltage or current probes. VARIABLE 3. Use the variable knob to 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. 0.1X~2000X (1-2-5 steps) Range Note: The attenuation factor adds no influence on...

  • Page 96: Trigger

    GDS-1000A-U Series User Manual 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 97 CONFIGURATION 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. The Single trigger status appears in the upper right corner of the display.

  • Page 98: Configuring Holdoff

    GDS-1000A-U Series User Manual 1~263 for NTSC, 1~313 for PAL/SECAM line Sets the pulse width (20ns ~ 10s) and the triggering Pulse condition condition. (pulse trigger) Longer than Equal to > Shorter than ≠ Not equal to < Triggers on the rising edge.

  • Page 99: Configuring The Edge Trigger

    CONFIGURATION Pressing Set to Minimum sets the Holdoff time to the minimum, 40ns. Note: The holdoff function is automatically disabled when the waveform update mode is in Roll mode. Configuring the edge trigger MENU 1. Press the Trigger menu key. Procedure 2.

  • Page 100: Configuring The Video Trigger

    GDS-1000A-U Series User Manual 7. Press Coupling repeatedly to select the trigger coupling, DC or AC. DC, AC Range 8. Press Rejection to select the frequency rejection mode. LF, HF, Off Range 9. Press Noise Rej to turn the noise rejection on or off.

  • Page 101: Configuring The Pulse Width Trigger

    CONFIGURATION 4. Press Standard repeatedly to select the video standard. NTSC, PAL, SECAM Range 5. Press Polarity repeatedly to select the video signal polarity. positive, negative Range 6. Press Line repeatedly to select the video field line. Use the Variable knob to VARIABLE select the field.
  • Page 102 GDS-1000A-U Series User Manual 4. Press Mode repeatedly to select the trigger mode, Auto or Normal. To select the Single trigger mode, SINGLE press the Single key. Auto, Normal Range 5. Press When repeatedly to select the pulse condition. Then use the Variable knob VARIABLE to set the pulse width.

  • Page 103: Manually Triggering The Signal

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

  • Page 104: Rear Panel Usb Port Interface

    GDS-1000A-U Series User Manual Rear Panel USB Port Interface The USB slave port on the rear panel can be set to auto detect, however occasionally the USB host type cannot be detected. The USB Port function allows the USB host type to be manually or automatically set for the rear panel.

  • Page 105: 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. Note that printing to a PictBridge compatible printer and remote control cannot be supported at the same time as the same USB port is used.
  • Page 106 GDS-1000A-U Series User Manual 5. Run this query command via the terminal application. *idn? This command should return the manufacturer, model number, serial number, and firmware version in the following format. GW, GDS-1152A-U, XXXXXXX, V1.00 6. Configuring the command interface is complete.

  • Page 107: System Settings

    CONFIGURATION 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. Utility Procedure 2. Press System Info. The upper half of the display shows the following information. Manufacturer Model •...
  • Page 108 GDS-1000A-U Series User Manual 1. Press the Utility key. Utility Procedure 2. Press Language repeatedly to select the language. 1.800.561.8187 information@itm.com www. .com...

  • Page 109: Save/Recall

    SAVE/RECALL 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 110 GDS-1000A-U Series User Manual 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 63) Math The oscilloscope’s internal memory,...
  • Page 111 SAVE/RECALL 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. A waveform file also includes the following Waveform file information.

  • Page 112: Setup File Format

    GDS-1000A-U Series User Manual 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 • dots/vectors accumulation Display • • on/off grid type •...

  • Page 113: Using The Usb File Utilities

    SAVE/RECALL 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 114 GDS-1000A-U Series User Manual 1. Move the cursor to the file Creating a new folder / renaming or folder location and press Folder a file or folder New Folder or Rename. The file/folder name and the Rename character map will appear on the display.

  • Page 115: Quick Save (Hardcopy)

    SAVE/RECALL Quick Save (HardCopy) Hardcopy The Hardcopy key works as a Background shortcut for printing screen images directly to a printer or to save display images, waveform data, and panel settings onto a USB flash drive card. The Hardcopy key can be configured into three types of operations: save image, save all (image, waveform, setup) and printer.
  • Page 116 GDS-1000A-U Series User Manual 5. To invert the color in the display image, press Ink Saver. This turns Ink Saver on or off. 6. If Save Image was selected, press Mem Leng repeatedly to select USB Normal or USB 1M/2M. USB Normal and...

  • Page 117: Save

    SAVE/RECALL Save This section describes how to save data using the Save/Recall menu. File type/source/destination Item Source Destination Panel settings Internal memory: S1 ~ Panel setup • • (xxxx.set) External memory: USB • Channel 1, 2 Internal memory: W1 ~ Waveform data •...

  • Page 118: Saving The Panel Settings

    GDS-1000A-U Series User Manual Saving the panel settings 1. (For saving to USB flash Procedure drive) Insert the USB flash drive into the front panel USB port. Save/Recall Save/Recall 2. Press the Save/Recall key twice to access the Save menu.

  • Page 119: Saving The Waveform

    SAVE/RECALL To edit the USB drive contents File utilities (create/ delete/ rename files and folders), press File Utilities. For details, see page 113. Saving the waveform 1. (For saving to USB flash Procedure drive) Insert the USB flash drive into the front panel USB port.
  • Page 120 GDS-1000A-U Series User Manual Internal memory, W1 ~ W15 Memory Save to the USB flash drive with a Normal 4k waveform memory length. Save to the USB flash drive with a USB 1M 1M waveform memory length. For 2 channel operation only.

  • Page 121: Saving The Display Image

    SAVE/RECALL 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. (Image files can only be saved to USB) Save/Recall Save/Recall 2.

  • Page 122: Saving All (Panel Settings, Display Image, Waveform)

    GDS-1000A-U Series User Manual 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. Save/Recall Save/Recall 2. Press the Save/Recall key twice to access the Save menu.
  • Page 123 SAVE/RECALL 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. 6. Press Save to confirm saving.

  • Page 124: Recall

    GDS-1000A-U Series User Manual Recall File type/source/destination Item Source Destination Factory installed Current front panel Default panel • • setup setting Internal memory: A, B Current front panel Reference • • waveform Internal memory: S1 ~ Current front panel Panel setup •...

  • Page 125: Recalling The Default Panel Settings

    SAVE/RECALL Recalling the default panel settings Save/Recall 1. Press the Save/Recall key. Procedure 2. Press Default Setup. The factory installed setting will be recalled. Setting contents The following is the default panel setting contents. Mode: Normal Acquisition Coupling: DC Invert: Off Channel BW limit: Off voltage: x1...

  • Page 126: Recalling A Reference Waveform To The Display

    GDS-1000A-U Series User Manual Recalling a reference waveform to the display 1. The reference waveform must be stored in Procedure advance. See page 119 for details. Save/Recall 2. Press the Save/Recall key. 3. Press Display Refs. The reference waveform display menu appears.

  • Page 127: Recalling A Waveform

    SAVE/RECALL 3. Press Recall Setup. 4. Press Source repeatedly to select the file source, internal or external VARIABLE memory. Use the Variable knob to change the memory. Internal memory, S1 ~ S15 Memory USB flash drive, DSXXXX.SET. The setup file(s) must be placed in the root directory to be recognized.
  • Page 128 GDS-1000A-U Series User Manual 3. Press Recall Waveform. The display shows the available source and destination options. 4. Press Source repeatedly to select the file source, internal memory or USB. VARIABLE Use the Variable knob to change the memory location (W1 ~ W15)/DSXXXX.CSV.

  • Page 129: Recall Image

    SAVE/RECALL To edit the USB drive contents File utilities (create/ delete/ rename files and folders), press File Utilities. For details, see page 113. 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 130 GDS-1000A-U Series User Manual VARIABLE 4. Use the Variable knob to choose a file name (DSXXXX.BMP). The image file must be placed in the root directory to be recognized. 5. Press Recall to confirm recalling. When completed, a message appears at the bottom of the display.

  • Page 131: Print

    PRINT RINT The GDS-1000A-U is able to print screen images directly to a PictBridge compatible printer. The printed images can use the “Ink Saver” feature to print onto a white rather than a black background to reduce the amount of ink used. Note that printing and remote control cannot be used at the same time.
  • Page 132 GDS-1000A-U Series User Manual 2. Insert the other end of the USB cable into the printer USB port. LINE VOLTAGE AC 100 240V RANGE FREQUENCY 60Hz FUSE RATING 250V POWER MAX. 18W 40VA Utility 3. Press the Utility key. 4. Press the More key twice.
  • Page 133 PRINT 10. To change the default page size, press Page Size. Default printer page setting. Default 4 X 6 inches 4 X 6 Standard A4 size Hardcopy 11. Press the Hardcopy key. The current screen image will be printed to the printer.

  • Page 134: 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. Utility Procedure 2.

  • Page 135: 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 136 GDS-1000A-U Series User Manual 4. Press Wavetype repeatedly to select the standard square wave. Autoset 5. Press the Autoset key. The compensation signal will appear in the display. 6. Press the Display key, then Type to select the vector waveform.

  • Page 137: 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 138: 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 50 for details. For trigger setting details, see page 96. If this does not help, press the CH key. If the signal still does not appear, press the Autoset key.

  • Page 139: 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 140: 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 1.800.561.8187 information@itm.com www. .com...

  • Page 141: 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 142: 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 143 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 144: 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 145: 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. 1.800.561.8187 information@itm.com www.

  • Page 146: 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 GDS-1152A-U Digital Storage Oscilloscope...

  • Page 147: 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 148 GDS-1000A-U Series User Manual NDEX 2M memory length limits ..110 menu tree ........26 specification ......... 143 AC coupling ....... 92 Cycle time measure ....56 Accumulating waveform ..83 Data logging Acquisition ......... 78 menu tree ........44 menu tree ........

  • Page 149: Index

    INDEX pollution degree......11 faq ..........137 Environment ......143 High voltage measure ....55 safety instructions ......10 Holdoff ........98 Equivalent time sampling ..82 Horizontal ........85 Expand Center ......92 basic operation ......51 Expand Ground ......92 cursor operation......
  • Page 150 GDS-1000A-U Series User Manual Preshoot voltage measure ..56 Setting up the oscilloscope ..21 Print ........... 131 Setup Probe ......... 135 default contents ......45 file format ........112 attenuation level ......94 how to save ........118 attenuation menu tree ....25 recall ..........
  • Page 151 INDEX expand waveform ......92 save menu tree ......35 file format ........109 x-y mode ........88, 89 invert waveform ......93 zoom mode ........87 Memory depth ......110 Waveform accumulation ... 83 recall ..........127 X-Y mode ......88, 89 recall menu tree ......

This manual is also suitable for:

Gds-1072a-uGds-1102a-uGds-1152a-u

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