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

GW Instek GDS-1000A Series User Manual

Digital storage oscilloscope
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Digital Storage Oscilloscope
GDS-1000A Series
USER MANUAL
GW INSTEK PART NO. 82DS-1102AMD1
ISO-9001 CERTIFIED MANUFACTURER
www.valuetronics.com

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  • Page 1 Digital Storage Oscilloscope GDS-1000A Series USER MANUAL GW INSTEK PART NO. 82DS-1102AMD1 ISO-9001 CERTIFIED MANUFACTURER www.valuetronics.com...
  • Page 2 December 2010 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 ........7   Safety Symbols ............... 7   Safety Guidelines ..............8   Power cord for the United Kingdom ........11   GETTING STARTED ........12 Main Features ..............12  Panel Overview ..............14   ...
  • Page 4 GDS-1000A Series User Manual   Trigger key 2/6 ..............35   Trigger key 3/6 ..............36   Trigger key 4/6 ..............36   Trigger key 5/6 ..............37   Trigger key 6/6 ..............37   Utility key 1/6 ............... 38  ...
  • Page 5 TABLE OF CONTENTS   Adjusting the display contrast ..........69   Selecting the display grid ............. 69 Horizontal View ..............70    Moving the waveform position horizontally ......70   Selecting the horizontal scale ..........70   Selecting the waveform update mode ......... 71  ...
  • Page 6 The oscilloscope will not allow a 2M waveform to be saved.   .................... 125 APPENDIX ............ 126   Fuse Replacement ............126  GDS-1000A Series Specifications ........127    Model-specific specifications ..........127   Common specifications ............. 128 Probe Specifications ............130 ...

  • Page 7: Safety Instructions

    SAFETY INSTRUCTIONS 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. Safety Symbols These safety symbols may appear in this manual or on the oscilloscope.

  • Page 8: Safety Guidelines

    GDS-1000A Series User Manual 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  General Make sure the BNC input voltage does not Guideline exceed 300V peak.
  • Page 9 SAFETY INSTRUCTIONS  Power Supply AC Input voltage: 100 ~ 240V AC, 47 ~ 63Hz  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 10 GDS-1000A Series User Manual (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 11: Power Cord For The United Kingdom

    SAFETY INSTRUCTIONS Power cord for the United Kingdom When using the oscilloscope in the United Kingdom, make sure the power cord meets the following safety instructions. NOTE: This lead/appliance must only be wired by competent persons WARNING: THIS APPLIANCE MUST BE EARTHED IMPORTANT: The wires in this lead are coloured in accordance with the following code: Green/ Yellow:...

  • Page 12: Getting Started

    GDS-1000A Series User Manual ETTING STARTED The Getting started chapter introduces the oscilloscope’s main features*, appearance, and set up procedure. * firmware V1.5. Main Features Model name Frequency bandwidth Input channels GDS-1062A DC – 60MHz (–3dB) GDS-1102A DC – 100MHz (–3dB) GDS-1152A DC –...
  • Page 13 GETTING STARTED  Interface SD/SDHC card interface for saving and recalling data  Calibration output  External trigger input  USB slave interface for remote control  PictBridge Printer compatible www.valuetronics.com...

  • Page 14: Panel Overview

    GDS-1000A Series User Manual Panel Overview Front Panel LCD display TFT color, 320 x 234 resolution, wide angle view LCD display. Function keys: Activates the functions which F1 (top) to appear in the left side of the LCD F5 (bottom) display.
  • Page 15 GETTING STARTED Utility Utility key Configures the Hardcopy function (page101), shows the system status (page88), selects the menu language (page92), runs the self calibration (page120), configures the probe compensation signal (page121), and selects the USB host type(page89). Help Help key Shows the Help contents on the display (page42).
  • Page 16 GDS-1000A Series User Manual FORCE Trigger force key Acquires the input signal once regardless of the trigger condition at the time (page88). MENU Horizontal menu Configures the horizontal view (page70). Horizontal Moves the waveform horizontally position knob (page70). TIME/DIV TIME/DIV knob Selects the horizontal scale (page70).
  • Page 17 GETTING STARTED EXT TRIG External trigger Accepts an external trigger signal input (page81). Power switch Powers the oscilloscope on or off. www.valuetronics.com...

  • Page 18: Rear Panel

    GDS-1000A Series User Manual Rear Panel Power cord Power cord socket accepts the AC socket mains, 100 ~ 240V, 50/60Hz. The fuse socket holds the AC main Fuse socket fuse, T1A/250V. For the fuse replacement procedure, see page126. USB slave port...

  • Page 19: Display

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

  • Page 20: Setting Up The Oscilloscope

    GDS-1000A Series User Manual Setting up the Oscilloscope Background This section describes how to set up the oscilloscope properly including adjusting the handle, connecting a signal, adjusting the scale, and compensating the probe. Before operating the oscilloscope in a new environment, run these steps to make sure the oscilloscope is functionally stable.
  • 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. 8. Press the Autoset key. A square waveform will appear in the center of the display.
  • Page 22 GDS-1000A Series User Manual Over Under Normal Compensation Compensation 11. Setting up the oscilloscope is complete. You may continue with the other operations. Measurement: page43 Configuration: page63 www.valuetronics.com...

  • 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 functionalities. Menu Tree and Shortcuts Conventions Examples Normal = Press the functional key for “Normal” = Repeatedly press the functional key for Average “Average”...

  • Page 24: Ch1/2 Key

    GDS-1000A Series User Manual Select acquisition mode Normal ~ Peak-Detect Select average number Average Turn Delay on/off Delay On CH1/2 key Turn channel on/off CH 1/2 Select coupling mode Coupling Invert waveform Invert Turn bandwidth limit on/off BW Limit Select probe type Voltage↔Current...

  • Page 25: Cursor Key 1/2

    QUICK REFERENCE 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 Turn cursor on/off Cursor Move Y1 cursor Y1→...

  • Page 26: Display Key

    GDS-1000A Series User Manual Display key Select waveform type Type Waveform accumulate On/Off Accumulate Refresh accumulation Refresh Set display contrast Contrast→VAR Select display grid Autoset key Automatically find the signal and set the scale Autoset Hardcopy key → See Utility key (page38)

  • Page 27: Horizontal Menu Key

    QUICK REFERENCE Horizontal menu key Switch from Horizontal Menu Horizontal MENU to Horizontal Position Menu. Main Select main (default) display Select window mode Window→TIME/DIV Window Zoom Zoom in window mode Roll Select window roll mode Select XY mode Toggle adjustment mode H Pos Adj Reset Reset horizontal marker...

  • Page 28: Math Key 1/2 (+/-/X)

    GDS-1000A Series User Manual Math key 1/2 (+/-/x) Math on/off Math Select math operation type (+/– /x/FFT/FFT rms) Operation Set result position Position→VAR Math result Volt/Div Unit/Div→VOLTS/DIV(CH2) Math key 2/2 (FFT/FFT rms) Math on/off Math Select math operation type (+/–...

  • Page 29: Measure Key

    QUICK REFERENCE Measure key Turn on/off measurement Measure Select measurement type Voltage/Time/Delay / → VAR Select measurement item or Icon(F3) Go back to previous menu Previous Menu Run/Stop key Freeze/unfreeze waveform or trigger Run/Stop www.valuetronics.com...

  • Page 30: Save/Recall Key 1/10

    GDS-1000A Series User Manual 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...

  • Page 31: 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 SD card 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 32: Save/Recall Key 5/10

    GDS-1000A 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 SD card file utilities File Utilities www.valuetronics.com...

  • Page 33: 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 SD card file utilities File Utilities Save/Recall key 8/10 Select other menu Save Image Save Save Image Image Turn on/off ink saver Ink Saver...

  • Page 34: Save/Recall Key 9/10

    GDS-1000A Series User Manual Save/Recall key 9/10 Select other menu Save All Turn on/off ink saver Ink Saver Select destination Destination Save all Save Go to SD card file utilities File Utilities Save/Recall key 10/10 Select file/folder →Select Create or rename folder/file New Folder/Rename →Enter character / Backspace...

  • Page 35: Trigger Key 1/6

    QUICK REFERENCE 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 Type Select trigger source Source Select video standard...

  • Page 36: Trigger Key 3/6

    GDS-1000A Series User Manual Trigger key 3/6 Select edge trigger type Edge Select trigger source Source Go to slope/coupling menu (page37) 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 37: Trigger Key 5/6

    QUICK REFERENCE Trigger key 5/6 Select trigger slope type Slope Select trigger coupling mode Coupling Select frequency rejection Rejection Turn noise rejection on/off Noise Rej Go back to previous menu Previous Menu Trigger key 6/6 Select Holdoff time Set to minimum Holdoff time Set to Minimum www.valuetronics.com...

  • Page 38: Utility Key 1/6

    GDS-1000A Series User Manual Utility key 1/6 Go to hardcopy menu Hardcopy Go to probe compensation menu ProbeComp Select language Language Show system information System Info. Go to self calibration menu More Utility key 2/6 Enter self calibration Calibration Self CAL...

  • Page 39: Utility Key 3/6

    QUICK REFERENCE Utility key 3/6 Select Hardcopy function Hardcopy – Save All Function Function Save All Turn on/off Inksaver Ink Saver On/ Off Ink Saver Mem Leng SD Normal Set the memory length SD 1M/ SD 2M SD Normal CSV Format Mem Leng Fast/ Detail Fast...

  • Page 40: Utility Key 5/6

    GDS-1000A Series User Manual Utility key 5/6 Select Hardcopy functionSelect Function Turn on/off Inksaver Ink Saver Go to previous menu Previous Menu Utility key 6/6 Select probe compensation signal Probe compensation Wave Type Wave Type Set frequency for square wave...

  • Page 41: Default Settings

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

  • Page 42: Built-In Help

    GDS-1000A Series User Manual 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. Acquire Display Utility Help Autoset Applicable keys Cursor Measure Save/Recall...

  • Page 43: 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.

  • Page 44: Using Autoset

    GDS-1000A Series User Manual Channel 1 off Channel 1 on Channel indicator Channel icon De-activating a To de-activate the channel, press the Channel key channel twice (once if the channel menu is already selected). Using Autoset Background The Autoset function automatically configures the panel settings to the best viewing conditions, in the following way.

  • Page 45: Running And Stopping The Trigger

    MEASUREMENT Before Autoset After Autoset Undo option Undoing the To undo the Autoset, press Autoset Undo (available for a few seconds). LEVE L Adjusting the If the waveform is still trigger level unstable, try adjusting the trigger level up or down by using the Trigger Level knob.

  • Page 46: Changing The Horizontal Position And Scale

    GDS-1000A Series User Manual Waveform Waveforms can be moved or scaled in both the operation Run and Stop mode. For details, see page70 (Horizontal position/scale) and page76 (Vertical position/scale). Changing the horizontal position and scale For more detailed configurations, see page70.

  • Page 47: Changing The Vertical Position And Scale

    MEASUREMENT TIME/DIV Selecting the To select the timebase (scale), turn horizontal scale the TIME/DIV knob; left (slow) or right (fast). Range 1ns/Div ~ 10s/Div, 1-2.5-5 increment Changing the vertical position and scale For more detailed configuration, see page76. Set vertical To move the waveform up or position down, turn the vertical position...

  • Page 48: Using The Probe Compensation Signal

    GDS-1000A Series User Manual Using the probe compensation signal Background This section introduces how to use the probe compensation signal for general usage, in case the DUT signal is not available or to get a second signal for comparison. For probe compensation details, see page121.
  • Page 49 MEASUREMENT 3. Press ProbeComp. 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. Range 1kHz ~ 100kHz 6. (For only) To change the duty cycle, press Duty Cycle and use the Variable knob.

  • Page 50: Automatic Measurements

    GDS-1000A 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 51 MEASUREMENT Global low voltage. Vavg Averaged voltage of the first cycle. Vrms RMS (root mean square) voltage. ROVShoot Rise overshoot voltage. FOVShoot Fall overshoot voltage. RPREShoot Rise preshoot voltage. FPREShoot Fall preshoot voltage. Time Freq Frequency of the waveform. measurement items Period Waveform cycle time...

  • Page 52: Automatic Measurement Gating

    GDS-1000A 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 53: Automatically Measuring The Input Signals

    MEASUREMENT 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 53). Turn gating off 4. Turn off cursors to turn off Page 56 gated automatic measurements.
  • Page 54 GDS-1000A Series User Manual Editing a 3. Press the corresponding measurement menu key (F1~F5) to select item the measurement slot to be edited. 4. The editing menu appears VARIABLE Change 5. Use the Variable knob to measurement select a different item measurement item.
  • Page 55 MEASUREMENT 7. Press F2 repeatedly to change the channel for Source2. Range CH1, 2, Math View all 8. Press F3 to view all measurements measurement items. 9. All the measurements appear in the center of the screen. 10. Press F3 to return. Note: All the editing operations can still be performed when viewing all the measurement items.

  • Page 56: Cursor Measurements

    GDS-1000A 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 57: Using The Vertical Cursors

    MEASUREMENT Moving the To move the left cursor, press horizontal X1 and then use the Variable cursors knob. To move the right cursor, press X2 and then use the Variable knob. To move both cursors at once, press X1X2 and then use the Variable knob.
  • Page 58 GDS-1000A Series User Manual Moving the To move the upper cursor, vertical cursors press Y1 and then use the Variable knob. To move the lower cursor, press Y2 and then use the Variable knob. To move both cursors at once, press Y1Y2 and then use the Variable knob.

  • Page 59: Math Operations

    MEASUREMENT Math Operations The Math operations can add, subtract, multiply or perform FFT/FFT RMS on the input waveforms. The resulted waveform can be measured using the cursors, and saved or recalled just like normal input signals. Overview Addition (+) Adds the amplitude of CH1 & CH2 signals. Subtraction (–) Extracts the amplitude difference between CH1 &...

  • Page 60: Adding, Subtracting Or Multiplying Signals

    GDS-1000A Series User Manual Suitable for..Single-shot phenomenon (this mode is the same as having no window at all) Blackman FFT Frequency resolution Bad window Amplitude resolution Very good Suitable for..Amplitude measurement on periodic waveforms Adding, subtracting or multiplying signals...

  • Page 61: Using The Fft Function

    MEASUREMENT Using the FFT function Procedure 1. Press the Math key. 2. Press Operation repeatedly to select FFT or FFT RMS. 3. Press Source repeatedly to select the source channel. 4. Press Window repeatedly to select the FFT window type. 5.
  • Page 62 GDS-1000A Series User Manual 8. To clear the FFT result from the display, press the Math key again. www.valuetronics.com...

  • Page 63: 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 64 GDS-1000A Series User Manual Average Multiple data is averaged to form a waveform. This mode is useful for drawing a noise-free waveform. To select the number, press Average repeatedly. Average number: 2, 4, 8, 16, 32, 64, 128, Peak detect To activate the Peak detect mode, press Peak-Detect.

  • Page 65: Selecting Delay Mode

    CONFIGURATION 7. Press Normal. 8. Press Peak-Detect and see that a spike noise is captured. Example The peak detect mode reveals the occasional glitch. 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 66 GDS-1000A Series User Manual 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 Procedure 1. Press the Acquire key.

  • Page 67: Real Time Vs Equivalent Time Sampling Mode

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

  • Page 68: Display

    GDS-1000A 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 Display Procedure 1. Press the Display key. 2. Press Type repeatedly to select the waveform drawing.

  • Page 69: Adjusting The Display Contrast

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

  • Page 70: Horizontal View

    GDS-1000A 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 Procedure The horizontal position knob moves the waveform left or right.

  • Page 71: Selecting The Waveform Update Mode

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

  • Page 72: Zooming The Waveform Horizontally

    GDS-1000A Series User Manual 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 TIME/DIV range sideways, and TIME/DIV knob to change the zoom range width.

  • Page 73: Viewing Waveforms In The X-Y Mode

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

  • Page 74: Horizontal Adjustment Menu

    GDS-1000A Series User Manual Horizontal Adjustment Menu Background The horizontal adjustment menu allows markers to be set at different times relative to the Horizontal position marker at 0 seconds. Each marker is linked to the mark directly before and after (in time).
  • Page 75 CONFIGURATION Navigate markers 7. Press Previous to go to the previous marker. 8. Press Next to go to the next marker. www.valuetronics.com...

  • Page 76: Vertical View (Channel)

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

  • Page 77: 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 78: Inverting The Waveform Vertically

    GDS-1000A Series User Manual CH 1 Procedure 1. Press the Channel key. 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 79: Limiting The Waveform Bandwidth

    CONFIGURATION Limiting the waveform bandwidth Background Bandwidth limitation puts the input signal into a 20MHz (−3dB) low-pass filter. This function is useful for cutting off high frequency noise to see the clear waveform shape. CH 1 Procedure 1. Press the Channel key. 2.
  • Page 80 GDS-1000A Series User Manual 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.

  • Page 81: Trigger

    CONFIGURATION Trigger The Trigger function configures the conditions by which the oscilloscope captures the incoming signals. Trigger type Edge Triggers when the signal crosses an amplitude threshold in either a positive or negative slope. Video Extracts a sync pulse from a video format signal and triggers on a specific line or field.
  • Page 82 GDS-1000A Series User Manual The Auto trigger status appears in the upper right corner of the display. SINGLE Single The oscilloscope acquires the input signals once when a trigger event occurs, then stops acquiring. Pressing the Single key again will repeat the process.

  • Page 83: Configuring Holdoff

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

  • Page 84: Configuring The Edge Trigger

    GDS-1000A Series User Manual 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 Procedure 1. Press the Trigger menu key.

  • Page 85: Configuring The Video Trigger

    CONFIGURATION 7. Press Coupling repeatedly to select the trigger coupling, DC or AC. Range DC, AC 8. Press Rejection to select the frequency rejection mode. Range LF, HF, Off 9. Press Noise Rej to turn the noise rejection on or off. Range On, Off 10.

  • Page 86: Configuring The Pulse Width Trigger

    GDS-1000A Series User Manual 4. Press Standard repeatedly to select the video standard. Range NTSC, PAL, SECAM 5. Press Polarity repeatedly to select the video signal polarity. Range positive, negative 6. Press Line repeatedly to select the video field line.
  • Page 87 CONFIGURATION 4. Press Mode repeatedly to select the trigger mode, Auto or Normal. To select the Single trigger mode, SINGLE press the Single key. Range Auto, Normal 5. Press When repeatedly to select the pulse condition. Then use the Variable knob VARIABLE to set the pulse width.

  • Page 88: Manually Triggering The Signal

    GDS-1000A Series User Manual 10. Press Noise Rej to turn the noise rejection on or off. Range On, Off 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 89: Usb Port Interface

    CONFIGURATION USB Port Interface The USB port 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. USB connection PC / Printer end Type A, host GDS-1000A end Type B, slave...

  • Page 90: Remote Control Interface

    GDS-1000A Series User Manual 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 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 91 CONFIGURATION 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, XXXXXXX, V1.00 6. Configuring the command interface is complete. Refer to the programming manual for the remote commands and other details.

  • Page 92: System Settings

    GDS-1000A Series User Manual System Settings The system settings show the oscilloscope’s system information and allow changing the language. Viewing the system information Utility Procedure 1. Press the Utility key. 2. Press System Info. The upper half of the display shows the following information.
  • Page 93 CONFIGURATION Utility Procedure 1. Press the Utility key. 2. Press Language repeatedly to select the language. www.valuetronics.com...

  • Page 94: Save/Recall

    GDS-1000A Series User Manual AVE/RECALL The save function allows saving display images, waveform data, and panel settings into the oscilloscope’s internal memory or an external SD card. The recall function allows recalling the default factory settings, waveform data, and panel settings from the oscilloscope’s internal memory...
  • Page 95 SAVE/RECALL Detail Contains the waveform amplitude and time of each point (4k/1M/2M) relative to the trigger point. Fast Only contains the waveform amplitude data for each point (4k/1M/2M). Waveform type CH1, 2 Input channel signal Math Math operation result (page59) Storage location Internal The oscilloscope’s internal memory,...
  • Page 96 GDS-1000A 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 97: Setup File Format

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

  • Page 98: Using The Sd Card File Utilities

    When an SD card is inserted into the oscilloscope, file utilities (file deletion, folder creation and file/folder renaming) are available from the front panel. SD Card The GDS-1000A series accepts the following SD restriction cards: Type: SD, SDHC Class: 2,4,6...
  • Page 99 SAVE/RECALL SD card indicator When an SD card is inserted into the oscilloscope, an indicator appears at the right bottom corner of the display. (The SD card shouldn’t be removed when a file is saved or retrieved from the SD card). SD card Creating a new 1.
  • Page 100 GDS-1000A Series User Manual 2. If the file/folder still needs to be deleted, press Delete again to complete the deletion. To cancel the deletion, press any other key. www.valuetronics.com...

  • Page 101: Quick Save (Hardcopy)

     Current display image (*.bmp)  Current system settings (*.set)  Current waveform data (*.csv) SD Card The GDS-1000A series accepts the following SD restriction cards: Type: SD, SDHC Class: 2,4,6 Size: Up to 32GB (SDHC) Format: FAT or FAT32 Procedure 1.
  • Page 102 GDS-1000A Series User Manual 4. Press Function repeatedly to select Save Image or Save All. 5. To invert the color in the display image, press Ink Saver. This turns Ink Saver on or off. 6. Press Mem Leng repeatedly to select SD Normal or SD 1M/2M.

  • Page 103: Save

    Display image External memory: SD (xxxx.bmp) card  Waveform data (xxxx.csv)  Panel settings (xxxx.set) The GDS-1000A series accepts the following SD SD Card cards: restriction Type: SD, SDHC Class: 2,4,6 Size: Up to 32GB (SDHC) Format: FAT or FAT32...

  • Page 104: Saving The Panel Settings

    GDS-1000A Series User Manual Saving the panel settings Procedure 1. (For saving to an external SD card) Insert the card into the slot. Save/Recall Save/Recall 2. Press the Save/Recall key twice to access the Save menu. 3. Press Save Setup.

  • Page 105: Saving The Waveform

    SAVE/RECALL File utilities To edit SD card contents (create/ delete/ rename files and folders), press File Utilities. For details, see page98. Saving the waveform Procedure 1. (For saving to an external SD card) Insert the card into the slot. Save/Recall Save/Recall 2.

  • Page 106: Saving The Display Image

    GDS-1000A Series User Manual SD Normal Save to the SD card with a 4k waveform memory length. SD 1M Save to the SD card with a 1M waveform memory length. For 2 channel operation only. SD 2M Save to the SD card with a 2M waveform memory length.
  • Page 107 SAVE/RECALL Save/Recall Save/Recall 2. Press the Save/Recall key twice to access the Save menu. 3. Press Save Image. 4. Press Ink Saver repeatedly to invert the background color (on) or not (off). 5. Press Destination. SD card External card, no practical limitation on the amount of files.

  • Page 108: Saving All (Panel Settings, Display Image, Waveform)

    GDS-1000A Series User Manual Saving all (panel settings, display image, waveform) Procedure 1. (For saving to an external SD card) Insert the card into the slot. Save/Recall Save/Recall 2. Press the Save/Recall key twice to access the Save menu. 3. Press Save All. The following information will be saved.
  • Page 109 SAVE/RECALL SD 1M Save to the SD card with a 1M waveform memory length. For 2 channel operation only. SD 2M Save to the SD card with a 2M waveform memory length. For single channel operation only. 6. Press Save to confirm saving.

  • Page 110: Recall

     Waveform data Internal memory: W1 ~ Reference waveform (DSxxxx.csv) A, B  External memory: SD card The GDS-1000A series accepts the following SD SD Card cards: restriction Type: SD, SDHC Class: 2,4,6 Size: Up to 32GB (SDHC) Format: FAT or FAT32...

  • Page 111: Recalling The Default Panel Settings

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

  • Page 112: Recalling A Reference Waveform To The Display

    GDS-1000A Series User Manual Recalling a reference waveform to the display Procedure 1. The reference waveform must be stored in advance. See page 105 for details. Save/Recall 2. Press the Save/Recall key. 3. Press Display Refs. The reference waveform display menu appears.

  • Page 113: 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. Memory Internal memory, S1 ~ S15 SD card External card, no practical limitation on the amount of file. The setup file must be placed in the root directory to be recognized.
  • Page 114 GDS-1000A 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 external VARIABLE SD card. Use the Variable knob to change the memory location (W1 ~ W15).

  • Page 115: Recall Image

    SAVE/RECALL File utilities To edit the SD card contents (create/ delete/ rename files and folders), press File Utilities. For details, see page98. Recall Image Background Recall Image is useful for recalling reference images that would not be possible using the Recall Waveform function, such as in X-Y mode.
  • Page 116 GDS-1000A Series User Manual VARIABLE 4. Use the Variable knob to choose a file name (DSXXXX.BMP). SD card 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 117: Print

    PRINT RINT The GDS-1000A 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 118 GDS-1000A 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 More (F5).
  • Page 119 PRINT 10. To change the default page size, press Page Size. Default Default printer page setting. 4 X 6 4 X 6 inches Standard A4 size Hardcopy 11. Press the Hardcopy key. The current screen image will be printed to the printer.

  • Page 120: Maintenance

    GDS-1000A 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 Utility Procedure 1. Press the Utility key.

  • Page 121: 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 122 GDS-1000A 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 123: 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 124: The Waveform Does Not Update (Frozen)

    GDS-1000A Series User Manual The waveform does not update (frozen). Press the Run/Stop key to unfreeze the waveform. See page45 for details. For trigger setting details, see page81. If this does not help, press the CH key. If the signal still does not appear, press the Autoset key.

  • Page 125: 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 SD card slot does not accept my card. Make sure the SD card is formatted as FAT or FAT32.

  • Page 126: Appendix

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

  • Page 127: Gds-1000A Series Specifications

    APPENDIX GDS-1000A 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-1062A Bandwidth (–3dB) DC coupling: DC ~ 60MHz AC coupling: 10Hz ~ 60MHz Bandwidth Limit 20MHz (−3dB) Trigger Sensitivity 0.5div or 5mV (DC ~ 25MHz) 1.5div or 15mV (25MHz~60MHz)

  • Page 128: Common Specifications

    GDS-1000A 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...
  • Page 129 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 130: Probe Specifications

    –10°C ~ 55°C Relative Humidity ≤85% @35°C Safety Standard EN 61010-031 CAT II * Note: GW Instek reserves the right to change the probe model type (GTP-060A-4, GTP-100A-4, GTP-150A-2) at anytime without notice for probe model types of similar specification. www.valuetronics.com...

  • Page 131: Ec Declaration Of Conformity

    APPENDIX EC Declaration of Conformity GOOD WILL INSTRUMENT CO., LTD. No.7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan GOOD WILL INSTRUMENT (SUZHOU) CO., LTD. No. 69, Lushan Road, Suzhou New District Jiangsu, China declares that the below mentioned product GDS-1062A, GDS-1102A, GDS-1152A Are herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Law of Member States...
  • Page 132 GDS-1000A Series User Manual NDEX 2M memory length limits ..95 Cursor.......... 56 AC coupling ....... 77 faq ..........123 menu tree ........25 Accumulating waveform ..68 shortcut .......... 25 Acquisition ......... 63 specification ......... 129 menu tree ........24 Cycle time measure ....

  • Page 133: Index

    INDEX safety instructions ......9 specification ......... 128 Equivalent time sampling ..67 Horizontal menu shortcut .......... 27 Expand Center ......77 Image Expand Ground ......77 recall ..........115 External trigger ......81 Ink saver input terminal ....... 17 in display save ......
  • Page 134 GDS-1000A Series User Manual compensation menu tree ..... 40 Setting the handle ...... 20 compensation signal overview ... 48 Setting up the oscilloscope ..20 faq..........124 Setup peak detect demonstration..64 default contents ......41 Pulse time measure ....51 file format ........
  • Page 135 INDEX expand waveform ......77 save menu tree ......33 file format ........94 x-y mode ........73, 74 invert waveform ......78 zoom mode ........72 Memory depth ......95 Waveform accumulation ... 68 recall ..........113 X-Y mode ......73, 74 recall menu tree ......

This manual is also suitable for:

Gds-1062aGds-1102aGds-1152a

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