Digital Storage Oscilloscope GDS-2000 Series USER MANUAL GW INSTEK PART NO.
December 2010 This manual contains proprietary information, which is protected by copyrights. 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 company. The information in this manual was correct at the time of printing. However, Good Will continues to improve products and reserves the rights to change specification, equipment, and maintenance procedures at any time without notice.
TABLE OF CONTENTS Table of Contents SAFETY INSTRUCTIONS ................................................... 5 GETTING STARTED ......................................................... 10 GDS-2000 Series Overview ................... 11 Appearance .......................................... 14 Set Up .................................................. 22 QUICK REFERENCE ......................................................... 26 Menu Tree / Operation Shortcuts ........ 27 Default Settings ....................
GDS-2000 Series User Manual Save ................................................... 128 Recall ................................................. 137 PRINT OUT .................................................................... 146 REMOTE CONTROL CONFIG ......................................... 149 Interface Configuration ...................... 150 BATTERY OPERATION .................................................... 156 MAINTENANCE .............................................................
SAFETY INSTRUCTIONS SAFETY INSTRUCTIONS This chapter contains important safety instructions that you must follow when operating GDS-2000 and when keeping it in storage. Read the following before any operation to insure your safety and to keep the best condition for GDS2000. Safety Symbols These safety symbols may appear in this manual or on GDS-2000. WARNING Warning: Identifies conditions or practices that could result in injury or loss of life.
GDS-2000 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 Guideline CAUTION Make sure the BNC input voltage does not exceed 300V peak. Never connect a hazardous live voltage to the ground side of the BNC connectors. It might lead to fire and electric shock. Do not place any heavy object on GDS-2000.
SAFETY INSTRUCTIONS Power Supply WARNING Fuse WARNING Cleaning GDS2000 Operation Environment AC Input voltage: 100 ~ 240V AC, 48 ~ 63Hz The power supply voltage should not fluctuate more than 10%. Connect the protective grounding conductor of the AC power cord to an earth ground, to avoid electrical shock. Fuse type: T2A/250V Make sure the correct type of fuse is installed before power up. To ensure fire protection, replace the fuse only with the specified type and rating.
GDS-2000 Series User Manual (Pollution Degree) EN 61010-1:2001 specifies the pollution degrees and their requirements as follows. GDS-2000 falls under degree 2. Pollution refers to “addition of foreign matter, solid, liquid, or gaseous (ionized gases), that may produce a reduction of dielectric strength or surface resistivity”. Pollution degree 1: No pollution or only dry, non-conductive pollution occurs. The pollution has no influence. Pollution degree 2: Normally only non-conductive pollution occurs.
SAFETY INSTRUCTIONS Power cord for the United Kingdom When using GDS-2000 in the United Kingdom, make sure the power cord meets the following safety instructions.
GDS-2000 Series User Manual GETTING STARTED This chapter describes GDS-2000 in a nutshell, including its main features and front / rear panel introduction. After going through the overview, follow the Set Up section to properly set up operation environment. GDS-2000 series Series lineup ...................................................11 overview Main Features ..................................................12 Package Contents ............................................
GETTING STARTED GDS-2000 Series Overview Series lineup GDS-2000 series consists of 6 models, divided into 2-channel and 4channel versions. Model name Frequency bandwidth Input channels Ext.
GDS-2000 Series User Manual Main Features Performance Feature Interface 12 High sampling rate: up to 1GS/S real-time, 25GS/s equivalent-time Deep memory: 25k points record length Minimum 10ns peak detection Wide selection range: 60MHz to 200MHz bandwidth, 2 or 4 channels Powerful display: 5.6 in.
GETTING STARTED Package Contents Check the contents before using GDS-2000. Opening the box Contents Main unit Probe set GDS-2062: GTP-060A x 2 GDS-2064: GTP-060A x 4 GDS-2102: GTP-100A x 2 GDS-2104: GTP-100A x 4 GDS-2202: GTP-250A x 2 GDS-2204: GTP-250A x 4 Note Power cord User manual (this document) For detailed specification of probe, see page169. Program manual, PC software, and USB driver are downloadable from GWInstek website. Visit www.gwinstek.com , GDS-2000 corner.
GDS-2000 Series User Manual Appearance GDS-2064/2104/2204 Front Panel GDS-2062/2102/2202 Front Panel 14
GETTING STARTED LCD display TFT color, 320 x 234 resolution, wide angle view LCD display. F1 ~ F5 function keys Activates the functions which appear on the left side of the LCD display. Variable knob Increases/decreases value or moves to the next/previous parameter. On/Standby key Switches between the power On state (green indicator) and standby state (red indicator). For power up sequence, see page23. Acquire key Configures acquisition mode (page85).
GDS-2000 Series User Manual Cursor key Configures and runs cursor measurements (page60). Measure key Configures and runs automatic measurements (page55). Help key Shows Help contents on the LCD display (page46). Save/Recall key Saves and recalls waveform, image, and panel setup (page119). Auto Set key Finds signals and sets the appropriate horizontal / vertical / trigger settings (page49). Run/Stop key Freezes (Stop) or continues (Run) signal acquisition (page50).
GETTING STARTED Vertical position knob Sets the vertical position of waveforms (page102). Channel menu key Configures the vertical scale and coupling mode for each channel (page102). Volts/Div knob Selects the vertical scale (page102). Input terminal Accepts input signals. Input impedance: 1MΩ±2%. Ground terminal Accepts the DUT ground lead for common ground. Math key Configures and runs math operation (page64). USB host port TypeA, 1.1/2.0 compatible.
GDS-2000 Series User Manual Rear Panel Power switch Power cord socket Fuse socket Power switch turns the main power On ( ) / Off ( ). Power cord socket accepts AC mains, 100 ~ 240V, 50/60Hz. Fuse socket holds AC main fuse, T2A/250V. For power up sequence, see page23. For fuse replacement procedure, see page164. RS232C port 18 Accepts DB-9 RS-232C connector for remote control (page151).
GETTING STARTED GPIB port (optional) Battery packs (optional) Accepts 24 pin male GPIB connector for remote control (page153). Holds 2 packs of Li-Ion battery for portable usage (page156). USB slave port Accepts typeB connector for remote control (page150) or PC software connection. USB 1.1/2.0 full speed compatible. USB host port Accepts typeA connector for display image printout (page146) or data transfer (page119). Simultaneous use with the front panel host port is not allowed. TypeA, 1.1/2.
GDS-2000 Series User Manual Display Power Interface Date/Time or Trigger Acquisition source Memory Bar status mode Image Recall Waveform Display mode Channel status Waveforms Power source Timebase Trigger Waveform configuration frequency Shows input signal waveforms. Channel 1: Yellow Channel 2: Blue Channel 3: Pink Channel 4: Green AC main is the source. Battery (page156) is the source. AC main is the source: battery is installed as well.
GETTING STARTED USB RS-232C GPIB (optional) Date/Time Current date and time (page117). Memory bar The ratio and the position of the displayed waveform compared with the internal memory (page95). Trigger status Triggered. Not triggered, display not updated. Not triggered, display updated. Trigger stopped. Also appears in Run/Stop (page50). For trigger details, see page106. Acquisition mode Normal mode Peak detect mode Average mode For acquisition details, see page85.
GDS-2000 Series User Manual Set Up Tilt stand Low angle High angle 22
GETTING STARTED Power up Step 1. Connect the power cord to the rear panel socket. (No need when using the battery). 2. Turn On the main power switch. : On, : Off. 3. The ON/STBY indicator on the front panel turns red. 4. Press the ON/STBY key. The indicator turns green and the display becomes active in 6 ~ 8 seconds. 5. The power icon on the upper left corner of the display shows the power source. When both AC mains and battery are available, AC mains is automatically selected.
GDS-2000 Series User Manual First Time Use Background This section describes how to connect a signal, adjust the scale, and compensate the probe. Before operating GDS-2000 in a new environment, run these steps to make sure the instrument is functionally stable and that you are comfortable operating it. 1. Power On Follow the procedure on the previous page. 2. Reset system Reset the system by recalling the factory setting. Press the Save/Recall key, then F1 (Default Setup).
GETTING STARTED 4. Select vector waveform Press the Display key, then F1 (Type) twice to select the vector waveform. Display Type Vectors 5. Compensate probe F 1 Turn the adjustment point on the probe to make the square waveform edge flat. 6. Start operation Continue with the other operations.
GDS-2000 Series User Manual QUICK REFERENCE This chapter describes GDS-2000 menu tree, shortcuts to major operations, built-in Help access, and default factory settings. Use them as a handy reference to get a quick access to the functionality. Menu tree / shortcut Convention ......................................................27 Acquire key ......................................................27 Auto Set key ....................................................27 Auto test/Stop key .....................
QUICK REFERENCE Menu Tree / Operation Shortcuts Convention F1 = Press F1 F1 = Press F1 repeatedly F1 ~ F4 = Select one from F1 to F4 and press it F1→VAR = Press F1, then use the Variable knob Auto Set = Press the function key itself (AutoSet in this case) Acquire key Select acquisition mode Acquire F1~F3 ACQUIRE Normal Peak Detect Average Mem Leng 500 Select average number (only in average mode) F 1 F3 F 2 F 3 2/ 4/ 8/ 16/ 32/ 64/ 128/ 256 F 5 500/25000 (1CH) 500/12500 (2CH) 500/5000 (
GDS-2000 Series User Manual Auto test/Stop key Auto test/Stop → See Program key (page32) CH1 ~ 4 key Select coupling mode CH1 F1 Coupling F 1 / Invert Off F 2 On/ Off BW Limit Off F 3 On/ Off F 4 x1/ x10/ x100 Probe x1 / Turn waveform invert On/Off F2 Turn bandwidth limit On/Off F3 Select probe attenuation factor F4 Cursor key Select cursor source channel Cursor CURSOR Source CH1 Horizontal Vertical F 1 F1 Select active horizontal cursor F2 F 2 / / Select active vertical cursor F
QUICK REFERENCE Display key Select waveform display type Display F1 DISPLAY Type Dots Accumulate Off F 1 Vectors/ Dots F 2 On/ Off Refresh F 3 Contrast F 4 Waveform accumulation On/Off F2 , F3 (display refresh when On) Set display contrast F4→VAR F 5 Select display grid / / F5 Hardcopy key → See Utility key (page39) Hardcopy Help key Turn help mode On/Off Help Help Horizontal menu key Select main (default) display HORI MENU F1 Hor.
GDS-2000 Series User Manual Math key (1/2) Select math operation (+/– ) MATH MATH Operation + CH1+CH2 Position 0.00 Div Unit/Div 2V F1 Select channel combination F 1 F 2 F 4 (4CH) CH1+CH2/ CH3+CH4 (2CH) CH1+CH2 -12div ~ +12div F2 Set result position F4→VAR Math result vertical scale F5→VOLTS/DIV F 5 Math key (2/2) Select math operation type (FFT) MATH MATH Operation FFT Source CH1 Window Hanning Position 0.
QUICK REFERENCE Measure key (1/2) Measure Measure MEASURE MEASURE Vpp 1:204mV 2:24.0mV Vavg 1:99.3mV 2:4.28mV Frequency 1:1.000kHz 2:1.500kHz DutyCycle 1:50.00% 2:45.00% RiseTime 1:7.837us 2:8.
GDS-2000 Series User Manual Program key (1/2) Select Program Edit mode Program F1 PROGRAM Edit Play Step 01.
QUICK REFERENCE Save/Recall key (1/9) Save/Recall Save/Recall SAVE/REC SAVE/REC Default Setup Display Refs. Save Setup Save Waveform More Save F 1 Image F 2 To Display Refs Save F 3 To Save Setup Recall F 4 To Save Waveform All Setup Recall Waveform Recall F 5 Image Recall default setup F 1 To Save Image F 2 To Save All F 3 To Recall Setup F 4 To Recall Waveform F 5 To Recall Image F1 Save/Recall key (2/9) Display Refs.
GDS-2000 Series User Manual Save/Recall key (3/9) Save Setup Select Save Setup menu Save/Recall F1 Save Setup Select destination F 1 F3 →VAR Save setup Destination USB Save File Utilities F 3 Memory/USB F 4 F 5 (USB only) To File Utilities F4 Go to USB flash drive contents edit mode F5 Save/Recall key (4/9) Save Waveform Select Save Waveform menu Save/Recall F1 Save Waveform Source Destination USB Save File Utilities Select waveform source F 1 F 2 F 3 Select waveform destination Memo
QUICK REFERENCE Save/Recall key (5/9) Save All Select Save All menu Save/Recall F1 Save All Ink Saver Off Destination USB Save File Utilities Turn ink saver On/Off F 1 F 2 F2 On/ Off Select destination F3 F 3 →VAR Save all F 4 F 5 F4 (USB only) To File Utilities Go to USB flash drive contents edit mode F5 Save/Recall key (6/9) Recall Setup Select Recall Setup menu Save/Recall F1 Select setup source Recall Setup F 1 Source USB F 2 F2 USB/Memory →VAR Recall setup F4 Go to USB flash d
GDS-2000 Series User Manual Save/Recall key (7/9) Recall Waveform Select Recall Waveform menu Save/Recall F1 Select waveform source Recall Waveform Source USB F 1 F 2 Destination F 3 Recall F 4 File Utilities F 5 F2 USB/Memory →VAR Select waveform destination F3 →VAR Recall waveform F4 (USB only) To File Utilities Go to USB flash drive contents edit mode F5 Save/Recall key (8/9) Recall Image Select Recall Image menu Save/Recall F1 Recall Image Source USB Ref Image On Recall File Utili
QUICK REFERENCE Save/Recall key (9/9) Select file/folder or enter into sub folder File Utilities Save/Recall Save/Recall FILE UTILS KEYPAD Enter Select New Folder F 1 F 3 Delete F 4 Menu Back F 2 Rename Previous Character Space VAR F 1 F 2 Create new folder or rename folder/file F2,F3 (Enter new folder or rename menu) VAR Save Previous F 5 Menu F 4 F 5 →F1 →F1 (Enter character) F2 (Backspace) F4 (Save new folder) F5 (Go back to previous menu) Delete folder/file F4 Trigger key (1/5)
GDS-2000 Series User Manual Trigger key (2/5) Select Edge/Pulse trigger type Edge/Pulse MENU F1 Select trigger source TRIGGER Type Pulse F 1 Source CH1 F 2 Mode Auto F 3 When < 20.
QUICK REFERENCE Trigger key (4/5) Select trigger slope type Slope/Coupling MENU F1 Select trigger coupling mode TRIGGER Slope Coupling Rejection Off Noise Rej Off Previous Menu F 1 / F2 Select Frequency Rejection F 2 / F 3 LF/ HF/ Off F 4 On/ Off F 5 F3 Turn Noise Rejection On/Off F4 Go back to previous menu F5 Trigger key (5/5) Set Holdoff time F1→VAR Set Holdoff time to minimum F2 Turn Auto Level trigger On/Off F5 39
GDS-2000 Series User Manual Utility key (1/9) Go to Hardcopy menu Utility UTILITY Hardcopy Menu Interface Menu Off Language English More F1 F 1 To Hardcopy menu F 2 To Interface menu / / Off F 3 F 4 English/Chinese(S) Chinese(T)/Spanish Korean/ etc F 5 Go to Interface menu F2 Select buzzer sound F3 Select language F4 Go to other menu F5 Utility key (2/9) Start Vertical calibration Utility UTILITY Self CAL Menu System Info.
QUICK REFERENCE Utility key (3/9) Select Hardcopy function Hardcopy Utility H-COPY Function Save All Ink Saver Off Gray Portrait Ratio 50% Previous Menu Hardcopy F1 Turn Ink Saver On/Off F 1 SaveImage/ SaveAll/ Printer F 2 On/ Off F 3 (Printer only) Color Portrait/ Gray Portrait F 4 (Printer only) 5 ~ 75 F 5 F2 Select printout color (only in printout mode) F3 Select printout ratio (only in printout mode) F4 Run Hardcopy Hardcopy Utility key (4/9) Select interface Interface Utility Type RS232
GDS-2000 Series User Manual Utility key (5/9) Go to Go-NoGo template menu Go-NoGo Utility Go-NoGo Template Edit Source CH1 Violating Stop Go-NoGo Off Ratio: 0 0 F1 Select Go-NoGo source channel F 1 To Go-NoGo Template menu F 2 (4CH) CH1/ 2/ 3/ 4 (2CH) CH1/ 2 F 3 STOP / STOP+ Continue / Cont.
QUICK REFERENCE Utility key (7/9) Go to Probe Compensation menu Utility UTILITY ProbeComp Menu Time Set Menu F 1 To Probe menu F 2 To Time set menu F1 Go to Time Set menu F2 Go to other menu F5 More F 5 Utility key (8/9) Select probe compensation signal Probe compensation Utility F1 Set frequency for square wave ProbeComp Wave Type Frequency 1K Duty Cycle 50% Default 1k Previous Menu F 1 F 2 F 3 F 4 / / ( only) 1k ~ 100k ( only) 5% ~ 95% F2→VAR Set duty cycle for square wave F3→VAR
GDS-2000 Series User Manual Utility key (9/9) Select date/time setting F1 Select day/month/year F2 →VAR Select hour/minute F2 →VAR Save date/time setting F4 Go to previous menu F5 44
QUICK REFERENCE Default Settings Here is the factory installed panel setting which appears when pressing the Save/Recall key→F1 (Default Setup). Save/Recall Default Setup F 1 Acquisition Mode: Normal Memory length: 500 Channel Scale: 2V/Div CH1: On, CH2/3/4: Off Coupling: DC Invert: Off BW limit: Off Probe attenuation: x1 Source: CH1 Horizontal: None Cursor Vertical: None Display Accumulate: Off Go-NoGo Go-No: Off Graticule: Source: CH1 Violating: Stop Horizontal Scale: 2.
GDS-2000 Series User Manual Built-in Help The Help key shows help contents. When a functional key is pressed, simple explanations of its major functionalities appear on the display. Applicable keys Acquire Cursor Utility Program Display Measure Save/Recall Auto test/Stop Auto Set Help HORI MENU Run/Stop Hardcopy MATH MENU Panel operation Help CH1 (Trigger menu) 1. Press the Help key. The display changes to Help mode. 2. Press each key to access its help contents.
MEASUREMENT MEASUREMENT Basic measurement Channel activation .......................................... 48 Auto Set .......................................................... 49 Run/Stop ........................................................ 50 Horizontal position/scale ............................... 51 Vertical position/scale .................................... 52 Probe compensation signal ............................. 53 Automatic measurement Measurement items .....................................
GDS-2000 Series User Manual Basic Measurement This section describes the basic operations required in capturing and viewing the input signal. For more detailed operations, see the following chapters. Measurements → from page47 Configurations → from page83 Channel activation Activate channel To activate an input channel, press the Channel key. The LED turns On and the input signal waveform appears on the display. De-activate channel To disable the channel, press the Channel key again.
MEASUREMENT Auto Set Background Panel operation Auto Set function automatically configures the panel settings to position the input signal to the best viewing condition. GDS-2000 automatically configures the following parameters. Horizontal scale Vertical scale Trigger source channel 1. Connect the input signal to GDS-2000 and press the Auto Set key. Auto Set 2. The waveform appears in the center of the display. Before After 3. To undo Auto Set, press F5 (Undo).
GDS-2000 Series User Manual Run/Stop Background By default, the waveform on the display is constantly updated (Run mode). Freezing the waveform by stopping signal acquisition (Stop mode) allows flexible observation and analysis. To enter the Stop mode, two methods are available: pressing the Run/Stop key or using the Single Trigger mode. Stop mode icon When in Stop mode, the Stop icon appears at the top of the display. Freeze waveform 1. Press the Run/Stop key by Run/Stop key once.
MEASUREMENT Horizontal position/scale For more detailed configuration, see page95. Set horizontal position The horizontal position knob moves the waveform left/right. As the waveform moves, the memory bar appears on the top of the display, indicating the portion of displayed waveform in the memory. Stop mode In the Stop mode, the memory bar moves along with the waveform until it reaches the end of the memory.
GDS-2000 Series User Manual Vertical position/scale For more detailed configuration, see page102. Set vertical position To move the waveform up or 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. Run/Stop mode Select vertical scale The waveform can be moved vertically in both Run and Stop mode. To change the vertical scale, turn the VOLTS/DIV knob; left (down) or right (up).
MEASUREMENT 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. For probe compensation details, see page159. Note that the frequency accuracy and duty factor are not guaranteed. Therefore the signal should not be used for reference purpose. Square waveform for probe compensation. 1k ~ 100kHz, 5% ~ 95%. Waveform type Demonstration signal to show the effect of peak detection.
GDS-2000 Series User Manual 3. Press F5 (More) twice. More F 5 More F 5 4. Press F1 (Wave type) repeatedly to select the wave type. only) Frequency 5. (For square wave F 2 To change the frequency, 1K press F2 (Frequency) and use the Variable knob. Range 1kHz ~ 100kHz only) Duty Cycle 6. (For square wave To change the duty cycle, 50% press F3 (Duty Cycle) and use the Variable knob. Range Probe compensation 54 F 3 5% ~ 95% For probe compensation details, see page159.
MEASUREMENT Automatic Measurement Automatic measurement function measures and updates major items for Voltage, Time, and Delay type.
GDS-2000 Series User Manual Time measurement Delay measurement 56 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 Freq Frequency of the waveform Period Waveform cycle time (=1/Freq) Risetime Rising time of the pulse (~90%) Falltime Falling time of the pulse (~10%) +Width Positive pulse width –Width Negative pulse width Duty C
MEASUREMENT FFR Time between: Source 1 first falling edge and Source 2 first rising edge FFF Time between: Source 1 first falling edge and Source 2 first falling edge LRR Time between: Source 1 first rising edge and Source 2 last rising edge LRF Time between: Source 1 first rising edge and Source 2 last falling edge LFR Time between: Source 1 first falling edge and Source 2 last rising edge LFF Time between: Source 1 first falling edge and Source 2 last falling edge Individual mode Individual mo
GDS-2000 Series User Manual F 1 F 2 F 3 F 4 F 5 Select measurement item 3. The selection menu appears. Source 1 Press F1 (Source 1) CH 1 repeatedly to select the first source channel. 4. Press F2 (Source 2) repeatedly to select the second source channel. 5. Press F3 repeatedly to select the measurement type: Voltage, Time, and Delay. F 1 Source 2 CH 2 F 2 Voltage Vpp F 3 6. Use the Variable knob or press F4 repeatedly to select the measurement item. F 4 7.
MEASUREMENT Display All mode Display All mode shows and updates all items from Voltage and Time type measurement. View measurement result 1. Press the Measure key twice. Measure Measure 2. Press the channel for which the measurement results need to be observed. CH1 F 1 3. The results of Voltage and Time type measurement appear on the display. 4. Press F5 (OFF) to clear the measurement results from the display. Delay type OFF F 5 Delay type measurement is not available in this mode.
GDS-2000 Series User Manual Cursor Measurement Cursor line, horizontal or vertical, shows the position and value of the waveform and math operation result. Use horizontal cursor Panel operation/ 1. Press the Cursor key. Range Cursor 2. Press F1 (Source) repeatedly to select the source channel. Source CH1 F 1 Range 4CH model CH1, 2, 3, 4, Math 2CH model CH1, 2, Math 3. Press F2 (Horizontal) repeatedly to activate the horizontal cursor.
MEASUREMENT Parameter T1 Time position of the left cursor T2 Time position of the right cursor ∆ The time distance between the left and right cursor f The time distance (∆) converted to frequency 5. Use the Variable knob to move the cursor left or right. The F4 content changes accordingly. Example T1 T2 T1 T2 f FFT Math The FFT Math has different F4 content. For FFT math details, see page67.
GDS-2000 Series User Manual Use vertical cursor Panel operation/ 1. Press the Cursor key. Range 2. Press F1 (Source) repeatedly to select the source channel. Cursor Source CH1 F 1 Range 4CH model CH1, 2, 3, 4, Math 2CH model CH1, 2, Math 3. Press F2 (Vertical) repeatedly to activate the vertical cursor. Vertical F 3 Range Vertical cursor not activated Upper cursor movable, lower cursor position fixed Lower cursor movable, upper cursor position fixed Upper and lower cursor movable together 4.
MEASUREMENT 5. Use the Variable knob to move the cursor up or down. The F5 content changes accordingly. Example V1 V2 Note: FFT Math V1 V2 The FFT Math has different F5 content. For FFT math details, see page67.
GDS-2000 Series User Manual Math Operation Overview Background Math operation runs addition, subtraction, multiplication, or FFT using the input signals and shows the result on the display. The resulted waveform characteristics can be measured using the cursors. Addition (+) Adds amplitude of two signals. Channel pairs 4CH model: Channel 1 + 2, 3 + 4 2CH model: Channel1 + 2 Subtraction (–) Extracts the amplitude difference between two signals.
MEASUREMENT Flattop FFT window Frequency resolution Not good Amplitude resolution Good Suitable for.... Rectangular FFT window Frequency resolution Very good Amplitude resolution Bad Suitable for.... Blackman FFT window Amplitude measurement on periodic waveform Single-shot phenomenon (this mode is the same as having no window at all) Frequency resolution Bad Amplitude resolution Very good Suitable for....
GDS-2000 Series User Manual 4. (For 4CH model only) press CH1+CH2 F 2 F2 repeatedly to select the channel pairs, 1&2 or 3&4. 5. The math measurement result appears on the display. The vertical scale (fixed) of math waveform appears in F5 (Unit/div). Unit/Div 2V F 5 Position 0.00 Div F 4 Channel1 Math Channel2 6. To move the math waveform vertically, press F4 (Position) and use the Variable knob. 7. To clear the math result from the display, press the Math key again.
MEASUREMENT FFT Panel operation 1. Press the Math key. 2. Press F1 (Operation) repeatedly to select FFT. MATH Operation FFT F 1 3. Press F2 repeatedly to select the source channel. Source CH1 F 2 4. Press F3 repeatedly to select the FFT window type. Window Hanning F 3 5. The FFT result appears. For FFT, the horizontal scale changes from time to frequency, and the vertical scale from voltage to dB.
GDS-2000 Series User Manual 6. To move the FFT waveform vertically, press F4 (Position) and use the Variable knob. Range Unit/Div 1dB 1, 2, 5, 10, 20 dB/Div RMS Voltage 8. To clear the FFT result from the display, press the Math key again. 68 F 4 –12.00 Div ~ +12.00 Div 7. To select the vertical scale of FFT waveform, press F5 (Unit/Div) repeatedly. RMS Voltage can also be selected instead of dB. Range Position 0.
MEASUREMENT Go-NoGo Test Overview Background Go-NoGo test checks if a waveform fits inside the user-specified maximum and minimum amplitude boundary (template). The test result comes out in three ways: menu contents, buzzer sound, and pulse signal output from the rear panel terminal.
GDS-2000 Series User Manual Edit: Buzzer sound Panel operation 1. Press the Utility key. 2. Press F3 repeatedly to select the buzzer for test fail (NoGo) notification. Utility Off F 3 High pitch Middle pitch Low pitch Sound Off Note The buzzer setting also affects the vertical resolution calibration (page158) – the buzzer notifies the completion of calibration. Edit: NoGo when 1. Press the Utility key. 2. Press F5 (More). Utility More F 5 3.
MEASUREMENT Edit: Source signal 1. Press the Utility key. 2. Press F5 (More). Utility More F 5 3. Press F3 (Go-NoGo Menu). Go-NoGo Menu F 3 4. Press F2 (Source) repeatedly to select the channel to be tested. (Note: the selected channel is automatically activated) Source CH1 F 2 Edit: Continue or stop after NoGo 1. Press the Utility key. 2. Press F5 (More). Utility More F 5 3. Press F3 (Go-NoGo Menu). Go-NoGo Menu F 3 4.
GDS-2000 Series User Manual The test stops when the NoGo condition is met. The buzzer does not sound. Stop The test stops and the buzzer sounds when the NoGo condition is met. Stop+ Continue Continue+ Note The test continues even when the NoGo condition is met. The buzzer does not sound. The test continues even when the NoGo condition is met. The buzzer also sounds. If the sound is turned Off in the buzzer setting (page70), the sound is not produced even when selecting Stop/Continue+ .
MEASUREMENT Auto Creates the upper and lower boundary together from an input signal, not from internally stored waveform. Advantage: No need to store the waveforms prior to this selection. Disadvantage: The template shape is proportional to the source signal. The distance (allowance) between the source signal and upper/lower template are always symmetrical. Min/Max setting 1. Make sure the source signal, on which the templates are based, appears on the display. 2. Press the Utility key. 3.
GDS-2000 Series User Manual 74 Max (marked as waveform “A” in thd display) Maximum boundary: RefA, W1 ~ 20 internal memory Min (marked as waveform “B” in the display) Minimum boundary: RefB, W1 ~ 20 internal memory 8. Press F3 (Position). Use the Variable knob to move the waveform amplitude level. Position 3.00 Div F 3 9. Repeat step 9, 10, 11 for the other template setting, Min or Max. Template Min F 1 10. When the templates are set, press F4 (Save & Create) to save them.
MEASUREMENT Auto setting 1. Make sure the source signal, on which the templates are based, appears on the display. 2. Press the Utility key. 3. Press F5 (More). Utility More F 5 4. Press F3 (Go-NoGo Menu). Go-NoGo Menu F 3 5. Press F1 (Template Edit). Template Edit F 1 6. Press F1 repeatedly to Auto position. Template Auto F 1 7. Press F2 repeatedly to select the signal channel on which the template is created. Source CH1 F 2 8.
GDS-2000 Series User Manual 10. When the templates are set, press F4 (Save & Create) to save it. Save & Create F 4 Run Go-NoGo test This section assumes all Go-NoGo settings (page69) are completed. Panel operation 1. Press the Utility key. 2. Press F5 (More). 3. Press F3 (Go-NoGo Menu). Utility More F 5 Go-NoGo Menu F 3 4. Make sure the source signal and the templates (boundary) both appear on the display.
MEASUREMENT 5. Press F4 (Go-NoGo). The Go-NoGo Go-NoGo test starts running On and stops according to the continue/stop condition (page71). To stop the test manually, Press F4 again. 6. The test results appear in F5 menu. The denominator (lower side) shows the number of completed test. The numerator (upper side) shows the number of failed test (NoGo). Ratio: 3 6 F 4 F 5 7.
GDS-2000 Series User Manual Program Overview Background Program function measures input signals using cursors or automatic measurement functions, in user-defined sequence, duration, loop count, and panel settings. This feature is useful for automated and repetitive measurement, such as in assembly line or quality inspection test.
MEASUREMENT Edit program This section assumes that the panel setting is already defined and saved (step 1 and 2 in the previous page). Panel operation 1. Press the Program key. The display changes into program edit mode. 2. Press F1 (Edit/Play) to select the Edit side. Program Edit Play F 1 3. Press F2 (Step). Use the Variable knob to select the step that needs to be edited. The cursor on the display moves accordingly. Step 01. F 2 4.
GDS-2000 Series User Manual Setup Selects the panel setup stored in the internal memory. S01 ~ S20. For panel setup store/recall details, see page129 (save) or page139 (recall). Menu Selects the measured item: Cursor or Automatic measurement. Time Sets the duration of the step, 1 ~ 99 seconds or user control (Run/Stop). When Run/Stop is selected, the program freezes at that step until the user presses the Run/Stop key. 5. Continue the above for all program steps.
MEASUREMENT Run program This section assumes that the program editing (see previous page) is completed. Panel operation 1. Press the Program key. The display changes into program mode. Program 2. Press F1 (Edit/Play) repeatedly to select the Play side. Edit Play F 1 3. Press F2 (Cycle). Use the Variable knob to select the number of program loop: 1 ~ 99.
GDS-2000 Series User Manual 4. Press F3 (From/To) to select the From: side. Use the Variable knob to select the program start step: 1 ~ 20. The “S” mark appears in the selected step. From: 1 To: 4 F 3 5. Press F3 (From/To) to select the To: side. Use the Variable knob to select the program end step: 1 ~ 20. Note that the To: step must be larger or equal to the From: step. The “E” mark appears in the selected step. From: 1 To: 4 F 3 Start F 5 6. Press F5 (Start).
CONFIGURATION CONFIGURATION Acquisition Select acquisition mode .................................. 85 Select waveform memory length ...................... 87 Real time vs Equivalent time sampling mode .. 90 Display Select waveform drawing (vector/dot) ............. 91 Accumulate waveform ..................................... 92 Set display contrast......................................... 93 Freeze the waveform ....................................... 93 Select display grid ..............................
GDS-2000 Series User Manual Trigger Trigger type overview ..................................... 106 Trigger parameter overview ............................ 107 Use edge trigger ............................................ 110 Use advanced delay trigger (2CH model) ....... 111 Use video trigger ........................................... 113 Use pulse width trigger .................................. 114 System View system information ............................... 116 Select menu language ...............
CONFIGURATION Acquisition Acquisition process samples the analog input signals and converts them into digital format for internal processing. Select acquisition mode Panel operation 1. Press the Acquire key. 2. Select the acquisition mode from F1 (Normal) ~ F3 (Average). The acquisition icon on the top right corner of the display changes accordingly. Range Acquire Normal Peak Detect Average 2 F 1 F 2 F 3 Normal All of the acquired data is used to draw the waveform.
GDS-2000 Series User Manual Example Normal Peak Detect Average (2 times) Average (256 times) Peak detect effect 1. One of the probe using probe compensation waveforms comp. waveform can demonstrate peak detection mode. Connect the probe to the probe compensation output. 2. Press the Utility key. 3. Press F5 (More) twice. Utility More F 5 More F 5 4. Press F1 (Wave Type) and waveform. select the 5. Press the Auto Set key. GDS-2000 positions the waveform in the center of the display.
CONFIGURATION 6. Press the Acquire key. Acquire 7. Press F2 (Peak Detect) or F1 (Normal) and see that in the Peak detection mode, spike noise is captured. Peak Detect Normal Peak Detect F 1 F 2 Normal Select waveform memory length Background Panel operation Memory length defines the amount of waveform data (points) included in each trigger event. Two modes are available: short and long. Short mode Each waveform includes fewer points and is updated rapidly.
GDS-2000 Series User Manual 2. Press F5 (Mem Leng) to select the memory length (points), short or long. Range (memory point) Example Mem Leng 500 F 5 500 Short memory length; useful for catching high frequency signal. 5000 Long memory length when three or four channels are active. 12500 Long memory length when two channels are active. 25000 Long memory length when only one channel is active.
CONFIGURATION Long memory 1. One of the probe effect using probe compensation waveform comp. waveform can demonstrate long memory mode. Connect the probe to the output. 2. Press the Utility key. Utility 3. Press F5 (More) twice. More F 5 4. Press F1 (Wave Type) and select the waveform. 5. Press the Auto Set key. GDS-2000 positions the waveform in the center of the display. Set the horizontal scale to 2.5ms to observe the whole waveform shape. 6. Press the Acquire key. 7.
GDS-2000 Series User Manual Real time vs Equivalent time sampling mode Background GDS-2000 automatically switches between two sampling modes, Real-time and Equivalent-time, according to the number of active channel and sampling rate. Parameter Real-time sampling One sampled data is used to reconstruct a single waveform. Short-time events might get lost if the sampling rate gets too high. This mode is used when the sampling rate is relatively low.
CONFIGURATION Display Display menu defines how the waveforms and parameters appear on the main LCD display. Select waveform drawing (vector/dot) Panel operation 1. Press the Display key. 2. Press F1 (Type) repeatedly to select the waveform drawing. Range Display Type Dots F 1 Dots Only the sampled dots are displayed. Vectors Both the sampled dots and the connecting line are displayed.
GDS-2000 Series User Manual Accumulate waveform Background Accumulation preserves the old waveform drawings and overwrites new waveforms on top of it. It is useful for observing waveform variation. Panel operation 1. Press the Display key. 2. Press F2 (Accumulate) to turn On waveform accumulation. 3. To clear the accumulation and start over (refresh), press F3 (Refresh).
CONFIGURATION Set display contrast Panel operation 1. Press the Display key. Display 2. Press F4 (Contrast). Contrast F 4 Contrast F 4 Contrast F 4 3a. Turn the Variable knob left to lower the contrast (dark display). 3b. Turn the Variable knob right to raise the contrast (bright display). Freeze the waveform (Run/Stop) For more details about Run/Stop mode, see page50. Panel operation 1. Press the Run/Stop key. To unfreeze the waveform, press the Run/Stop key again. Run/Stop 2.
GDS-2000 Series User Manual Select display grid Panel operation 1. Press the Display key. Display 2. Press F5 (Grid type) repeatedly to select the grid. Range Shows the full grid; X and Y axis for each division. Shows only the center X and Y frame. Shows only the outer frame. Turn Off menu Panel operation 1. Press the MENU ON/OFF key below F1 ~ F5. 2. The menu disappears. The waveform points changes from 250 to 300.
CONFIGURATION Horizontal View This section describes how to set the horizontal scale, position, and waveform display mode. Move waveform position horizontally Panel operation The horizontal position knob moves the waveform left/right. As the waveform moves, the memory bar appears on the top of the display indicating the portion of displayed waveform in the memory. Run mode In Run mode, the memory bar keeps its relative position in the memory since the entire memory is continuously captured and updated.
GDS-2000 Series User Manual Select horizontal scale Select horizontal To select the timebase (scale), scale turn the TIME/DIV knob; left (slow) or right (fast). Range 1ns/Div ~ 10s/Div, 1-2-5 increment The corresponding sampling rate appears on the upper side of the display. The timebase indicator appears on the lower side. Run mode In Run mode, the memory bar and waveform size keep their proportion. When the timebase becomes slower, it automatically switches to Scan mode (see the next page).
CONFIGURATION Select waveform update mode Background The display update mode is switched automatically or manually according to timebase and trigger. The indicator on the bottom left of the display shows the current mode. Updates the whole displayed waveform at once. Automatically selected when the timebase (sampling rate) is fast. Main mode Timebase ≤50ms/div (≥500Sa/s) Trigger all modes Updates the waveform gradually from the left side of the display to the right. The waveform position is fixed.
GDS-2000 Series User Manual Roll mode Updates and moves the waveform gradually from the right side of the display to the left. Manually selected when the timebase (sampling rate) is slow. Timebase ≥250ms/div (≤100Sa/s) Trigger all modes Roll mode indicator (memory bar replaced) Waveform Roll mode indicator Select Roll mode 1. Press the Horizontal menu manually key. 2. Press F4 (Roll). The waveform starts scrolling from the right side of the display. The update mode indicator shows Roll mode.
CONFIGURATION Zoom waveform horizontally Panel operation/ 1. Press the Horizontal Menu range key. 2. Press F2 (Window) key. HORI MENU Window F 2 3. The WINDOW indicator, which shows the zoom range, appears on the bottom left corner of the display. Use the horizontal position knob to move the zoom range sideways, and 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.
GDS-2000 Series User Manual 4. Press F3 (Window Zoom). The specified range gets zoomed. The ZOOM indicator appears on the bottom left side of the display. Window Zoom F 3 Main F 1 Zoom Range 5. To go back to the original view, press F1 (Main). Show waveform in 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. Panel operation 1.
CONFIGURATION 3. Press the Horizontal menu key. 4. Press F5 (XY). The display shows two waveforms in XY format; Channel 1 as Xaxis, Channel 2 as Y-axis. HORI MENU XY F 5 5. Horizontal Position knob and Time/Div knob are disabled under the X-Y mode. To move the waveform position, use the vertical position knob: Channel 1 knob moves the waveform horizontally, Channel 2 knob vertically.
GDS-2000 Series User Manual Vertical View (Channel) This section describes how to set the vertical scale, position, and coupling mode. Move waveform position vertically Panel operation To move the waveform up or 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. Run/Stop mode The waveform can be moved vertically in both Run and Stop mode.
CONFIGURATION Select coupling mode Panel operation 1. Press the Channel key. CH1 2. Press F1 (Coupling) repeatedly to select the coupling mode. Coupling F 1 DC coupling mode. The whole portion (AC and DC) of the signal appears on the display. Range Ground coupling mode. The display shows only the zero voltage level as a horizontal line. This mode is useful for measuring the signal voltage with respect to the ground level. AC coupling mode. Only the AC portion of the signal appears on the display.
GDS-2000 Series User Manual Invert waveform vertically Panel operation Example 1. Press the Channel key. CH1 2. Press F2 (Invert) to invert the waveform. Invert Off CH2 (below) Invert Off F 2 CH2 (below) Invert On Limit 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. Panel operation 1. Press the Channel key. 2.
CONFIGURATION Example BW Limit Off BW Limit On Select probe attenuation level Background A signal probe has an attenuation switch to lower the original DUT signal level to the oscilloscope input range, if necessary. The probe attenuation selection adjusts the vertical scale so that the voltage level on the display reflects the real value on DUT. Panel operation 1. Press the Channel key. CH1 2. Press F4 (Probe) repeatedly to select the attenuation level. Probe x1 3.
GDS-2000 Series User Manual Trigger Trigger configures the condition GDS-2000 captures the incoming signal. Trigger type overview Edge (+Delay) Triggers when the signal crosses an amplitude threshold in either positive or negative slope. (for 2CH models only) The advanced Delay trigger works in tandem with the edge trigger, by waiting for a specified time or number of event before the edge trigger starts. This method allows pinpointing a location in a long series of trigger events.
CONFIGURATION Trigger parameter overview Trigger source Trigger mode CH1 ~ 4 Channel 1 ~ 4 input signals Line AC mains signal Ext (For 2CH models only) external trigger input signal Auto GDS-2000 generates an internal trigger if there is no trigger event, to make sure waveforms are constantly updated regardless of trigger events. Select this mode especially when viewing rolling waveform at slower timebase. Normal GDS-2000 acquires waveform only when a trigger event occurs.
GDS-2000 Series User Manual Video standard (video trigger) NTSC National Television System Committee PAL Phase Alternative by Line SECAM SEquential Couleur A Memoire Positive polarity Sync polarity (video trigger) Video line (video trigger) Pulse condition (pulse trigger) Negative polarity Selects the trigger point in the video signal. field 1 or 2 line 1~263 for NTSC, 1~313 for PAL/SECAM Sets the pulse width (20ns ~ 200us) and the triggering condition.
CONFIGURATION Triggers on AC+DC component. Frequency rejection Noise rejection LF Puts a high-pass filter and rejects the frequency below 50kHz. HF Puts a low-pass filter and rejects the frequency above 50kHz. Rejects noise signal. Setup Holdoff and Auto level Background Holdoff function defines the waiting period before GDS-2000 starts triggering again after a trigger point. Auto level function automatically adjusts the trigger level to the center amplitude of the waveform. Panel operation 1.
GDS-2000 Series User Manual Use edge trigger Panel operation 1. Press the Trigger menu key. 2. Press F1 repeatedly to select edge trigger. The edge trigger indicator appears at the bottom of the display. MENU Type Edge F 1 From left: channel, edge trigger, slope 3. Press F2 repeatedly to select the trigger source. Range Mode Auto 6. Press F1 (Slope) repeatedly to select the trigger slope, which also appears at the bottom of the display. Rising edge, falling edge 7.
CONFIGURATION 8. Press F3 (Rejection) to select Rejection the frequency rejection Off mode. Range LF, HF, Off 9. Press F4 (Noise Rej) to turn the noise rejection On/Off. Range F 3 Noise Rej Off F 4 Previous Menu F 5 On, Off 10. Press F5 (Previous menu) to go back to the previous menu. Use advanced delay trigger (2CH model) Panel operation 1. Make sure the edge trigger source is set to CH1 or CH2. If not, GDS-2000 automatically selects CH1 as the source. 2.
GDS-2000 Series User Manual 4. Press F4 (Ext) repeatedly to select the threshold level for the external trigger input. Range Ext: TTL TTL (1.48V), ECL (1.35V), User (–12V ~ +12V) 5. Press F5 (Slope/Coupling) Slope / to set the slope and coupling Coupling condition for external trigger input signal. Note that this setting does not affect the trigger source signal (Channel 1 or 2).
CONFIGURATION Use video trigger Panel operation 1. Press the Trigger menu key. 2. Press F1 repeatedly to select video trigger. The video trigger indicator appears at the bottom of the display. MENU Type Video F 1 From left: channel, video trigger, polarity 3. Press F2 repeatedly to select the trigger source channel. Range Source CH1 Channel 1 ~ 4 4. Press F3 repeatedly to select Standard the video standard. NTSC Range Polarity F 4 positive, negative 6.
GDS-2000 Series User Manual Use pulse width trigger Panel operation 1. Press the Trigger menu key. 2. Press F1 repeatedly to select pulse width trigger. The pulse width trigger indicator appears at the bottom of the display. MENU Type Pulse F 1 From left: channel, pulse width trigger, slope 3. Press F2 repeatedly to select the trigger source. Range F 2 Channel 1 ~ 4, Line, Ext 4. Press F3 repeatedly to select the trigger mode. Range Source CH1 Mode Auto F 3 Auto, Normal, Single 5.
CONFIGURATION 7. Press F1 (Slope) repeatedly to select the trigger slope, which also appears at the bottom of the display. Range Rising edge, falling edge 8. Press F2 (Coupling) repeatedly to select the trigger coupling. Range DC, AC 9. Press F3 (Rejection) to select Rejection the frequency rejection Off mode. Range LF, HF, Off 10. Press F4 (Noise Rej) to turn the noise rejection On/Off. Range F 3 Noise Rej Off F 4 Previous Menu F 5 On, Off 11.
GDS-2000 Series User Manual System Info / Language / Clock This section describes how to set the interface, beeper, language, time/date, and probe compensation signal. View system information Panel operation 1. Press the Utility key. Utility 2. Press F5 (More). 3. Press F2 (System Info). The upper half of the display shows the system information in the following format. More F 5 System Info. F 2 Manufacturer name Model name Serial number Firmware version 4.
CONFIGURATION Panel operation Spanish Japanese Russian German Dutch Polish Italian French Portuguese 1. Press the Utility key. 2. Press F4 (Language) repeatedly to select the language. Utility Language English F 4 Set date and time Panel operation/ 1. Press the Utility key. parameter 2. Press F5 (More) twice. 3. Press F2 (Time Set Menu). 4. Press F2 (Year/ Month/ Date) repeatedly. Use the Variable knob to change the value.
GDS-2000 Series User Manual 5. Press F4 (Save) to confirm the value. Save F 4 6. Press F1 (Date) to switch to the Time setting menu. Time F 1 7. Press F2 (Hour/ Minute) repeatedly. Use the Variable knob to change the value. Day 1 F 2 Save F 4 Hour 0 ~ 23 Minute 0 ~ 59 8. Press F4 (Save) to confirm the value. 9. Turn Off the display and turn it On again (power cycle). 10. Make sure the date/time setting is correctly reflected at the top of the display.
SAVE/RECALL SAVE/RECALL File format / Utility Display image file format .............................. 120 Waveform file format .................................... 120 Setup file format ........................................... 122 USB flash drive file utility .............................. 123 Save File type/source/destination ......................... 128 Save panel setting ......................................... 129 Save waveform .............................................. 130 Save All ......
GDS-2000 Series User Manual File Format/Utility Display image file format Format DSxxxx.bmp or Axxxx.bmp (Windows bitmap format) Contents The current display image in 234 x 320 pixels, color format. The background color can be inverted (Ink saver function). Waveform file format Format DSxxxx.csv or Axxxx.
SAVE/RECALL Contents: waveform data The waveform data can be used for detailed analysis. It consists of horizontal and vertical position of the waveform for the entire memory length. One division includes 25 points of horizontal and vertical data. The vertical point starts from the center line. The horizontal point starts from the leftmost waveform. 25 0 25 50 75 –25 The time length or voltage level which each data point represents differs according to the vertical and horizontal scale.
GDS-2000 Series User Manual Setup file format Format DSxxxx.set or Axxxx.set (proprietary format) The setup file saves or recalls the following setting. Contents Acquire mode memory length Cursor source channel cursor on/off cursor location dots/vectors grid type accumulation on/off Measure item source channel Utility hardcopy type ink saver on/off interface type RS-232 config buzzer type GPIB address Go-NoGo cond.
SAVE/RECALL USB flash drive file utility Background For USB flash drive, file deletion, folder creation, file/folder rename are available from the front panel. This feature is not available for internally stored files. Panel operation Front 1. Connect the drive to the front or rear panel USB port. Note: Only one host connection, front or rear, is allowed at a time. 2. Press the Save/Recall key. Select any save or recall functionality, for example USB destination in Save image function.
GDS-2000 Series User Manual 4. Use the Variable knob to move the cursor. Press F1 (Select) to go into the folder or go back to the previous directory level. Select F 1 Go back to the root directory Go back to the previous (higher) directory Go into the folder Create new folder 1. Move the cursor to the file New / Rename file or or folder location and press Folder folder F2 (New Folder) or F3 Rename (Rename). The file/folder name and the character map appear on the display. 2.
SAVE/RECALL 3. When editing is completed, press F4 (Save). A new folder or a new folder/file name is created. 4. Press F5 (Previous Menu) to go back to the previous menu. Delete folder/file 1. Move the cursor to the folder or file location and press F4 (Delete). A message appears at the bottom of the display, asking additional confirmation. 2. If the file/folder still needs to be deleted, press F4 (Delete) again to complete deletion. To cancel deletion, press any other key. 3.
GDS-2000 Series User Manual Quick Save (HardCopy) Background The Hardcopy key works as a shortcut for saving or printing out information. Hardcopy Once set, subsequent file saving only requires pressing the Hardcopy key. Hardcopy key can be configured into three operations: save image, save all (image, waveform, setup), and printing. The printing operation is described in page146. Using the Save/Recall key can also save files but with more configurations. For details, see page128.
SAVE/RECALL Panel operation Front 1. Connect the drive to the front or rear panel USB port. Note: Only one host connection, front or rear, is allowed at a time. 2. Press the Utility key. Rear Utility 3. Press F1 (Hardcopy Menu). Hardcopy Menu 4. Press F1 (Function) repeatedly to select Save image or Save all. Function Save All Function SaveImage 5. To invert the color for the saved or printed display image, press F2 (Ink Saver) and turn On the Ink Saver.
GDS-2000 Series User Manual Save File type/source/destination Item Source Panel setup (DSxxxx.set) Destination Front panel settings Internal memory: S1 ~ S20 External memory: USB Internal memory: Reference waveform A ~ D, W1 ~ W20 Channel 1 ~ 4 Math operation result Reference waveform A ~ D External memory: USB Display image (DSxxxx.bmp) Display image External memory: USB Save All Display image (Axxxx.bmp) External memory: USB Waveform data (Axxxx.
SAVE/RECALL Save panel setting Panel operation Front 1. (For saving to an external USB flash drive) Connect the drive to the front or rear panel USB port. Note: Only one host connection, front or rear, is allowed at a time. 2. Press the Save/Recall key. 3. Press F3 (Save Setup). The display shows the available file destinations. Rear Save/Recall Save Setup F 3 4. Press F3 (Destination) Destination F 3 repeatedly to select the USB saved location.
GDS-2000 Series User Manual USB External flash drive, no practical limitation on the amount of file. When saved, the setup file is placed in the root directory. 5. Press F4 (Save) to confirm saving. When completed, a message appears at the bottom of the display. Note USB file utility F 4 Save The file will not be saved if the power is turned Off or USB drive is taken out before the message. To edit USB flash drive contents (create/ delete/ rename files and folders), press F5.
SAVE/RECALL 4. Press F2 (Source). Use the Variable knob to select the source signal. Source F 2 CH1 ~ CH2 (2CH model) Channel 1 ~ 2 signal CH1 ~ CH4 (4CH model) Channel 1 ~ 4 signal Math Math operation result (page64) RefA ~ D Internally stored reference waveforms A ~ D 5. Press F3 (Destination) repeatedly to select the file destination. Use the Variable knob to select the memory location or file name.
GDS-2000 Series User Manual USB External flash drive, no practical limitation on the amount of file. When saved, the waveform file is placed in the root directory. Ref Internal reference waveform, A~D 6. Press F4 (Save) to confirm saving. When completed, a message appears at the bottom of the display. Note F 4 Save The file will not be saved if the power is turned Off or USB drive is taken out before the message.
SAVE/RECALL 3. Press F5 (More). 4. Press F1 (Save Image). The display shows the available file destinations. 5. Press F2 (Ink Saver) repeatedly to invert the background color (On) or not (Off). Ink Saver On (normal) More F 5 Save Image F 1 Ink Saver Off F 2 Ink Saver Off (inverted) 6. Press F3 (Destination). Use the Variable knob to select the file name.
GDS-2000 Series User Manual USB External flash drive, no practical limitation on the amount of file. When saved, the image file is placed in the root directory. 7. Press F4 (Save) to confirm saving. When completed, a message appears at the bottom of the display. Note F 4 Save The file will not be saved if the power is turned Off or USB drive is taken out before the message. USB file utility To edit USB flash drive contents (create/ delete/ rename files and folders), press F5.
SAVE/RECALL 4. Press F2 (Save All). The display shows the available file destinations. The following files are saved, contained in a folder. Save All F 2 Setup file (Axxxx.set) Two types of setups are saved: the current panel setting and the last internally saved setting (one of S1 ~ S20). Display image (Axxxx.bmp) The current display image in bitmap format. Waveform data Two types of waveform data (Axxxx.
GDS-2000 Series User Manual Ink Saver On (normal) Ink Saver Off (inverted) 6. Press F3 (Destination). Use the Variable knob to select the file name. USB USB F 3 External flash drive, no practical limitation on the amount of file. When saved, the folder is placed in the root directory. 7. Press F4 (Save) to confirm saving. When completed, a message appears at the bottom of the display.
SAVE/RECALL Recall File type/source/destination Item Source Default panel setup Factory installed setting Current front panel Reference waveform Internal memory: A ~D Current front panel Panel setup (DSxxxx.set) Internal memory: S1 ~ S20 Current front panel External memory: USB Internal memory: W1 ~ W20 Reference waveform A~D External memory: USB External memory: USB Display Waveform data (DSxxxx.csv) Display image (DSxxxx.
GDS-2000 Series User Manual Acquisition Mode: Normal Memory length: 500 Channel Scale: 2V/Div CH1: On, CH2/3/4: Off Coupling: DC Invert: Off BW limit: Off Probe attenuation: x1 Source: CH1 Horizontal: None Cursor Vertical: None Display Type: Dots Accumulate: Off Graticule: Go-No: Off Source: CH1 NoGo when: Violating: Stop Horizontal Scale: 2.5us/Div Mode: Main Timebase Math Type: + (Add) Channel: CH1+CH2 Position: 0.
SAVE/RECALL Recall reference waveform on the display Panel operation 1. The reference waveform must be stored in advance. See page for waveform store details. 2. Press the Save/Recall key. 3. Press F2 (Display Refs). The reference waveform display menu appears. Save/Recall Display Refs. 4. Select the reference waveform from F1 (Ref A) to F4 (Ref D) and press it. The waveform appears on the display and the period and amplitude of the waveform appears in the menu. Ref.A Off 5.
GDS-2000 Series User Manual Recall panel setting Panel operation Front 1. (For recalling from an external USB flash drive) Connect the drive to the front or rear panel USB port. Note: Only one host connection, front or rear, is allowed at a time. 2. Press the Save/Recall key. 3. Press F5 (More). 4. Press F3 (Recall Setup). The display shows the available file sources.
SAVE/RECALL 5. Press F2 (Source) repeatedly to select the file source, internal memory or external USB. Use the Variable knob to change the memory location (S1 ~ S20) or the file name (DSxxxx.set). F 2 Memory Internal memory, S1 ~ S20 USB External flash drive, no practical limitation on the amount of file. The setup file must be placed in the root directory to be recognized. 6. Press F4 (Recall) to confirm recalling. When completed, a message appears at the bottom of the display.
GDS-2000 Series User Manual Recall waveform Panel operation Front 1. (For recalling from an external USB flash drive) Connect the drive to the front or rear panel USB port. Note: Only one host connection, front or rear, is allowed at a time. 2. Press the Save/Recall key. 3. Press F5 (More). Rear Save/Recall More F 5 4. Press F4 (Recall Waveform). Recall F 4 The display shows the Waveform available source and destination options.
SAVE/RECALL 5. Press F2 (Source) repeatedly to select the file source, internal memory or external USB. Use the Variable knob to change the memory location (S1 ~ S20) or the file name (DSxxxx.csv). F 2 Memory Internal memory, W1 ~ W20 USB External flash drive, no practical limitation on the amount of file. The waveform file must be placed in the root directory to be recognized. 6. Press F3 (Destination). Use the Variable knob to select the memory location.
GDS-2000 Series User Manual Recall image Panel operation 1. Connect the USB drive to the front or rear panel USB port. Note: Only one host connection, front or rear, is allowed at a time. 2. Press the Save/Recall key. 3. Press F5 (More). 144 Front Rear Save/Recall More F 5 4. Press F5 (Recall Image). The display shows the available source options. Recall Image F 1 5. To select the source image file, press F2 (Source) and use the Variable knob.
SAVE/RECALL 6. To show the image on the display, press F3 (Ref Image) ON or F4 (Recall). Ref Image On F 3 Recall F 4 Ref Image Off F 3 7. The image appears on the display and the “R” indicator appears at the top left corner of the display. 8. To clear the image off the display, press F3 (Ref Image) OFF.
GDS-2000 Series User Manual PRINT OUT Display printout is also available using proprietary PC software, downloadable from GWInstek website. Overview Printout step Listed below are the steps that have to be followed when printing out the display image through USB connector. 1. Connect the printer to the USB host port 2. Configure the interface to printout mode 3. Configure the content and printout 4. Printout 1 Connect printer 1. Connect the printer to the USB host port, front or rear panel.
PRINT OUT 2 Configure interface Panel operation 1. Press the Utility key. Utility 2. Press F2 (Interface menu). Interface Menu F 2 3. Press F1 (Type) repeatedly to select USB. Type USB F 1 4. Press F5 (Previous menu). Previous Menu F 5 5. Press F1 (Hardcopy menu). Hardcopy Menu F 1 6. Press F1 (Function) repeatedly to select Printer. Function Printer F 1 3 Configure content Panel operation 1. Press the Utility key. Utility 2. Press F1 (Hardcopy Menu). Hardcopy Menu F 1 3.
GDS-2000 Series User Manual 4. To invert the color for the saved or printed display image, press F2 (Ink Saver) and turn On the Ink Saver. Ink Saver On (normal) Ink Saver On Ink Saver Off (inverted) 5. To select black/white or color printing, press F3 (Portrait) repeatedly; Gray (b&w) or Color. Gray Portrait F 3 6. To select the printed size, press F4 (Ratio). Use the Parameter knob to change the ratio with respect to the real display size.
REMOTE CONTROL CONFIG REMOTE CONTROL CONFIG This chapter describes basic configuration of IEEE488.2 based remote control. For command list, refer to the programming manual downloadable from GWInstek website, www.gwinstek.com Configuration Configure USB interface ................................ 150 Configure RS-232C interface .......................... 151 Configure GPIB interface (optional) .............. 153 USB/RS-232C remote control software ..........
GDS-2000 Series User Manual Interface Configuration Configure USB interface USB configuration Panel operation PC side connector Type A, host GDS-2000 side connector Type B, slave Speed 1.1/2.0 (full speed) 1. Press the Utility key. Utility 2. Press F2 (Interface Menu). Interface Menu F 2 3. Press F1 (Type) repeatedly to select USB. Type USB F 1 4. The interface icon at the top of the display changes into USB type. 5. Connect the USB cable to the rear panel slave port. 6.
REMOTE CONTROL CONFIG Configure RS-232C interface RS-232C configuration Panel operation Connector DB-9, Male Baud rate 2400, 4800, 9600, 19200, 38400 Parity None, Odd, Even Data bit 8 (fixed) Stop bit 1, 2 1. Press the Utility key. Utility 2. Press F2 (Interface Menu). Interface Menu F 2 3. Press F1 (Type) repeatedly to select RS-232C. Type RS232 F 1 Baud Rate 9600 F 2 4. The interface icon at the top of the display changes into RS-232C type. 5.
GDS-2000 Series User Manual Range None, Odd, Even 9. Connect the RS-232C cable to the rear panel port: DB-9 male connector. For functionality check see page155. Pin assignment 12345 2: RxD (Receive data) 3: TxD (Transmit data) 6789 PC connection 4, 6 ~ 9: No connection Use the Null Modem connection as in the below diagram.
REMOTE CONTROL CONFIG Configure GPIB interface (optional) GPIB module installation The optional GPIB module is available as a separate kit. Follow the instruction to install the module properly. 1. Turn Off the GDS-2000 power switch. 2. Take off two screws and remove the rear panel GPIB module cover. 3. Insert the GPIB module and put the screws back. 4. Turn On the GDS-2000 power switch. Configure GPIB 1. Press the Utility key. Utility 2. Press F2 (Interface Menu). Interface Menu F 2 3.
GDS-2000 Series User Manual 4. The interface icon at display top changes to GPIB. 5. Press F2 (Address). Use the Variable knob to change the GPIB address. Range Address 1 F 2 1 ~ 30 6. Connect the GPIB cable to the rear panel port: 24-pin female connector.
REMOTE CONTROL CONFIG USB/RS-232C remote control software Terminal application (USB/RS-232C) Invoke the terminal application such as MTTTY (Multi-Threaded TTY). For RS-232C, set the COM port, baud rate, stop bit, data bit, and parity accordingly. To check the COM port No, see the Device Manager in the PC. For WinXP, Control panel → System → Hardware tab. Functionality check Run this query command via the terminal.
GDS-2000 Series User Manual BATTERY OPERATION The optional battery allows portable operations such as field applications. Battery packs and related internal components are factory installed items: contact the service center for new installation. Warning Never insert or remove the battery while the power is On. Battery insertion 1. Turn Off the power and take off the power cord. 2. Open the rear panel battery pack cover.
BATTERY OPERATION 3. Insert the battery packs and close the cover. 4. Turn On the power and make sure the battery icon appears at the top left corner of the display. Rating Type Li-Ion battery x 2, 11.1V average Running time 3 hours typical Charging time 8 hours typical when Power Off 16 hours typical when Power On Battery status 1. To view the battery installation and recharge status, press the Utility key. 2. Press F5 (More). 3. Press F2 (System Info). Utility More F 5 System Info. F 2 4.
GDS-2000 Series User Manual MAINTENANCE Two types of maintenance operations are available: calibrate vertical resolution, and compensate the probe. Run these operations when using GDS-2000 in a new environment. Vertical Resolution Calibration Panel operation 1. Press the Utility key. 2. Press F5 (More). 3. Press F1 (Self Cal Menu). 4. Press F1 (Vertical). Utility More F 5 Self CAL Menu F 1 Vertical F 1 5.
MAINTENANCE 8. The calibration for Channel1 starts and ends automatically, in less than 5 minutes. 9. When finished, connect the calibration signal to Channel2 and press F5. Channel2 calibration starts. Ch1 calibration 1/3 Done!! 10. (for 4 Channel model only) Repeat the above step for Channel 3 and 4. 11. When the calibration for all channels is completed, the display goes back the default state. Probe Compensation Panel operation 1.
GDS-2000 Series User Manual 3. Press F5 (More) twice. More F 5 ProbeComp Menu F 1 x2 4. Press F1 (ProbeComp Menu). 5. Press F1 (Wavetype) repeatedly to select the standard square wave. 6. Press the Auto Set key. The compensation signal appears on the display. 7. Press the Display key, then F1 (Type) twice to select the vector waveform. Auto Set Display Type Vectors F 1 8. Turn the adjustment point on the probe until the signal edge becomes sharp.
FAQ FAQ • I pressed the Power (On/Standby) key on the front panel but nothing happens. • I connected the signal but it does not appear on the display. • I want to remove the (Measurement result / FFT result / Help contents) from the display. • The waveform does not update (frozen). • The probe waveform is distorted. • Auto Set does not catch the signal well. • I want to clean up the cluttered panel settings. • The display image printout is too dark on the background.
GDS-2000 Series User Manual I want to remove the (Measurement result / FFT result / Help contents) from the display. To clear automatic measurement result, press the Measure key twice, then Press F4 (OFF). See page55 for details. To clear FFT result, press the Math key twice. See page64 for details. To clear Help result, press the Help key again. See page46 for details. The waveform does not update (frozen). Press the Run/Stop key to unfreeze the waveform. See page50 for details.
FAQ The display image printout is too dark on the background. Use the Inksaver function which reverses the background color. For details, see page146. I want to install the optional battery pack. I put the battery pack in but it is not working. The battery pack needs additional internal components to work properly. They are factory installed items: contact your dealer. For battery operation details, see page156. The date and time setting are not correct.
GDS-2000 Series User Manual APPENDIX Fuse Replacement Step 1. Take off the power cord and remove the fuse socket using a minus driver. 2. Replace the fuse in the holder.
APPENDIX GPIB Module Installation For GPIB interface and remote control details, see page149. GPIB kit contents Step GPIB module Programming manual (programming manual is also downloadable from GWInstek website). 1. Turn Off the GDS-2000 power switch. 2. Take off two screws and remove the rear panel GPIB module cover. 3. Insert the GPIB module and put the screws back. 4. Turn On GDS-2000. Press the Utility key, then F2 (Interface) repeatedly.
GDS-2000 Series User Manual GDS-2000 Specifications The specifications apply when GDS-2000 is powered on for at least 30 minutes under +20°C~+30°C. Model-specific GDS-2062 GDS-2064 GDS-2102 GDS-2104 GDS-2202 GDS-2204 Channels Bandwidth Rise time Channels Bandwidth Rise time Channels Bandwidth Rise time Channels Bandwidth Rise time Channels Bandwidth Rise time Channels Bandwidth Rise time 2 DC ~ 60MHz (–3dB) 5.8ns approx. 4 DC ~ 60MHz (–3dB) 5.8ns approx. 2 DC ~ 100MHz (–3dB) 3.5ns approx.
APPENDIX Trigger Sources Modes Coupling Sensitivity External Trigger (2ch model only) Horizontal X-Y Mode Signal Acquisition Cursors and Measurement Holdoff Range Sensitivity CH1, CH2, Line, EXT(2ch model only), CH3, CH4(4ch model only) Auto-Level, Auto, Normal, Single, TV, Edge, Pulse Width, Time-Delay, EventDelay(2ch model only) AC, DC, LFrej, HFrej, Noise rej DC~25MHz: Approx. 0.5div or 5mV 25MHz~max: Approx. 1div or 10mV 40ns ~ 2.
GDS-2000 Series User Manual Auto Counter Control Panel Function Display Interface Power Source Miscellaneous Operation Environment Storage Environment Dimensions Weight 168 Resolution: 6 digits Accuracy: ±2% Signal source: All available trigger source except the Video trigger Auto Set Automatically adjust Vertical Volt/div, Horizontal Time/div, and Trigger level Save Setup Internal memory: 20 sets USB Flash drive: unlimited Save Waveform Internal memory: 20 sets USB Flash drive: unlimited Save displ
APPENDIX Probe Specifications Model-specific GTP-060A GTP-150A GTP-250A Applicable to Bandwidth Rise time Applicable to Bandwidth Rise time Applicable to Bandwidth Rise time GDS-2062, GDS-2064 DC ~ 60MHz @ Position x 10 5.8ns GDS-2102, GDS-2104 DC ~ 150MHz @ Position x 10 2.3ns GDS-2202, GDS-2204 DC ~ 250MHz @ Position x 10 1.
GDS-2000 Series User Manual Declaration of Conformity We 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.
INDEX INDEX 2-4 channel difference ............... 11 AC coupling ............................. 103 acquisition .................................. 85 menu tree ....................................... 27 addition ....................................... 65 menu tree ....................................... 30 auto level................................... 109 auto set ........................................ 49 effect on channel ........................... 48 exception .......................................
GDS-2000 Series User Manual safety instruction ............................ 7 equivalent time sampling ......... 90 external trigger ........................ 107 input terminal ............................... 17 specification ................................. 167 falling time measure.................. 56 FFT............................................... 67 horizontal cursor .......................... 61 menu tree ....................................... 30 overview ........................................
INDEX compensation menu tree ............. 43 compensation signal overview... 53 faq ................................................. 162 memory length demonstration .. 89 package list .................................... 13 peak detect demonstration ......... 86 specification ................................. 169 program ...................................... 78 how to edit ..................................... 79 how to run ..................................... 81 menu tree .............................
GDS-2000 Series User Manual key overview ................................. 15 menu tree ....................................... 40 shortcut .......................................... 40 vector waveform ........................ 91 vertical ...................................... 102 basic operation .............................. 52 cursor menu tree ........................... 28 cursor operation............................ 62 position......................................... 102 resolution calibration ......
