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Manual for 2 Channel 100 Mhz Digital Storage

1. Rear Panel Security lock Fuse socket Power cord socket CAL output USB port slot AORA f O fl ee Ay BIURE THE FOWER I RBAOVED FRO CE We METAN EERE LCG THE RE i m Power cord socket Power cord socket accepts the AC mains 100 240V 50 60Hz The fuse socket holds the AC main fuse T1A 250V For the fuse replacement procedure see page 122 Fuse socket USB slave port oe Accepts a type B slave male USB connector for remote control of the oscilloscope page 93 Calibration a Outputs the calibration signal used output in vertical scale accuracy calibration page 116 Security lock slot fm Standard laptop security lock slot for ensuring the security of the GDS 1000 U 19 GW INSTEK GDS 1000 U Series User Manual Display Waveform marker Waveform position Trigger status Acquisition ane pe eee Menu he ee 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
2. Display key Display Select waveform type Type Type Waveform accumulate On Off Vectors A Accumulate Off Refresh accumulation Refresh Refresh Contrast Set display contrast W Contrast VAR O Pull sal Select display grid da Autoset key Automatically find the signal and set the scale Autoset Hardcopy key Hardcopy See Utility key page 38 Help key Help Turn help mode on off Help 27 GW INSTEK GDS 1000 U Series User Manual Horizontal menu key MENU Select main default display Main wisi Select window mode ain Window gt TIME DIV Wind all Zoom in window mode Window Zgor Window Zoom Roll Select window roll mode Roll y Select XY mode XY Math key 1 2 dallin Math on off 7 Math peration CH1 CH2 Select math operation type FFT Operation g Tr Set result position K IV Unit Div CED Position VAR O 2v Math result Volt Div 28 Unit Div gt VAR GW INSTEK QUICK REFERENCE Math key 2 2 FFT MATH Operation FFT Source CH1 Window Hanning Position 0 00Div Unit Div 1dB Math on off CH1 CH2 Math A Select math operation type FFT Operation Flattop Rectangular Select FFT source channel Blackman Hanning Source Select FFT window Window 20 10 5 2 1 dB Select FFT result position Vertical gt VAR Select vertical scale Unit Dive
3. Range x1 x10 x100 Note The attenuation factor adds no influence on the real signal it only changes the voltage scale on the display GW INSTEK 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 Pulse Triggers when the pulse width of the signal matches the trigger settings Indicators Edge Pulse Video CHi EDGE FDC CHi VIDEO P NTSC 2 65218kHz lt 20Hz CH1 Edge Rising edge CH1 Video Positive DC coupling polarity NTSC standard Trigger parameter Trigger source CH1 2 Channel 1 2 input signals Line AC mains signal Ext External trigger input ar signal Trigger mode Auto The oscilloscope updates the input signal regardless of the trigger conditions if there is no trigger event the oscilloscope generates an internal trigger Select this mode especially when viewing rolling waveforms at a slow timebase 85 GW INSTEK GDS 1000 U Series User Manual The Auto trigger status appears in the upper right corner of the display Autow fL _ Trigger ennnen Type Edge SINGLE Single The oscilloscope acquires the input signals once when a CO trigger event occurs then stops acquiring Pressin
4. Duty cycle 5 95 adjustable 5 step Amplitude 2Vpp 3 Power Source Line Voltage 100V 240V AC 47Hz 63Hz Power 18W 40VA maximum Consumption Fuse Rating 1A slow 250V Operation Ambient temperature 0 50 C Environment Relative humidity lt 80 35 C Storage Ambient temperature 20 70 C Environment Relative humidity lt 80 70 C Dimensions 310 W x 142 H x 140 D mm Weight Approx 2 5kg 125 GW INSTEK GDS 1000 U Series User Manual Probe Specifications GDS 1052 U amp GDS 1072 U Probe Applicable model amp probe GDS 1052 U GDS 1072 U GTP 070A 4 Position x 10 Attenuation Ratio Bandwidth Input Resistance Input Capacitance Maximum Input Voltage 10 1 DC 7OMHz 10MQ when used with 1MQ input 28 32pF approx lt 600Vpk Derating with frequency Position x 1 Attenuation Ratio Bandwidth Input Resistance Input Capacitance Maximum Input Voltage 1 1 DC 6MHz 1MQ when used with 1MQ input 120 220pF approx lt 200Vpk Derating with frequency Operating Cond Temperature Relative Humidity 10 C 50 C lt 85 35 C Safety Standard 126 EN 61010 031 CAT II GW INSTEK APPENDIX GDS 1102 U Probe Applicable model amp GDS 1102 U probe GTP 100A 4 Position x 10 Attenuation Ratio 10 1 Bandwidth DC 100MHz Input Resistance 10MQ when used with 1MQ input Input Capacitance 14 5 17 5pF approx Maximum Inpu
5. W1 W15 4 Press Ink Saver repeatedly nk Saver to invert the background Off color on or not off for the display image 5 Press Destination Destination USB USB Save to the USB flash drive with a 4k waveform memory length GW INSTEK SAVE RECALL 6 Press Save to confirm saving When completed a message appears at the bottom of the display The file will not be saved if the Note AN power is turned off or the USB flash drive is removed from the USB port It takes approximately 1 min to save a 2M waveform to the USB drive in fast mode Detailed mode may take over 10 times longer depending on the speed of the USB flash drive 7 Together with the current setup waveform image the last saved waveform file one from W1 W15 and setup file one from S1 S15 are also included in the folder File utilities To edit the USB drive contents File create delete rename files Utilities and folders press File Utilities For details see page 99 109 GW INSTEK GDS 1000 U Series User Manual Recall File type source destination Item Default panel setup Reference waveform Panel setup DSxxxx set Waveform data DSxxxx csv 110 Source Factory installed setting Internal memory A B Internal memory S1 S15 External memory USB flash drive Internal memory W1 W15 External memory USB flash drive Destination e Current front panel e Current fron
6. 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 Autoset function cannot catch signals under 30mV or 30Hz Please use the manual operation See page46 for details want to clean up the cluttered panel settings The accuracy does not match the specifications The input signal does not appear in the display Make sure you have activated the channel by pressing the CH key page 45 want to remove some contents from the display To clear the math result press the Math key again page58 To clear the cursor press the Cursor key again page 55 To clear the Help contents press the Help key again page 44 119 GW INSTEK GDS 1000 U Series User Manual The waveform does not update frozen Press the Run Stop key to unfreeze the waveform See page 47 for details For trigger setting details see page 84 If this does not help press the CH key If the signal still does not appear press the Autoset key The probe waveform is distorted You might need to compensate the probe For details see page 117 Note that the frequency accuracy and duty factor are not specified for probe compensation waveforms and therefore it should not be used for other reference purposes Autoset does not catch the signal well Autoset function cannot catch signals under 30mV or 30Hz Please use the manu
7. External A USB flash drive FAT or FAT32 USB Flash format can hold practically an drive unlimited number of waveforms Ref A B Two reference waveforms are used as a buffer to recall a waveform in the display You have to save a waveform into internal memory or to USB then copy the waveform into the reference waveform slot A or B and then recall the reference waveform into the display Waveform data format 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 2 5 Pi Y jf Omen 25 5067549 25 ae i The time or amplitude represented by each data point depends on the vertical and horizontal scale For example Vertical scale 10mV div 4mV per point Horizontal scale 100us div 4us per point Waveform file contents other data A waveform file also includes the following information e Memory length e source channel e vertical offset e vertical scale e coupling mode e waveform last dot address e date and time e trigger level e vertical position e time base e probe attenuation e horizontal view e horizontal scale e sampling period e sampling mode 97 GW INSTEK GDS 1000 U Series User Manual Setup file format Format xxxx set proprietary format A setup file saves or recalls the following settings Contents Acquire e
8. Cleaning the e Disconnect the power cord before cleaning the oscilloscope oscilloscope e Use a soft cloth dampened in a solution of mild detergent and water Do not spray any liquid into the oscilloscope e Do not use chemicals containing harsh products such as benzene toluene xylene and acetone Operation e Location Indoor no direct sunlight dust free Environment almost non conductive pollution Note below e Relative Humidity lt 80 40 C or below lt 45 41 C 50 C e Altitude lt 2000m e Temperature 0 C to 50 C 10 GW INSTEK SAFETY INSTRUCTIONS Pollution Degree EN 61010 1 2001 specifies pollution degrees and their requirements as follows The oscilloscope falls under degree 2 Pollution refers to addition of foreign matter solid liquid or gaseous ionized gases that may produce a reduction of dielectric strength or surface resistivity e Pollution degree 1 No pollution or only dry non conductive pollution occurs The pollution has no influence e Pollution degree 2 Normally only non conductive pollution occurs Occasionally however a temporary conductivity caused by condensation must be expected e Pollution degree 3 Conductive pollution occurs or dry non conductive pollution occurs which becomes conductive due to condensation which is expected In such conditions equipment is normally protected against exposure to direct sunlight precipitation and full wind pressure
9. S15 External memory USB Internal memory W1 W15 Reference waveform A B External memory USB External memory USB External memory USB 103 GW INSTEK GDS 1000 U Series User Manual Saving the panel settings drive Insert the USB flash drive into the front panel USB port Procedure 1 For saving to USB flash n 5 Recall Recall 2 Press the Save Recall key 2 ecal Save Reca twice to access the Save menu 3 Press Save Setup Save gt Setup 4 Press Destination repeatedly Destination to select the saved location M emory Use the Variable knob to change the internal memory location S1 S15 VARIABLE N q Memory Internal memory S1 S15 USB USB no practical limitation for the amount of files When saved the setup file will be placed in the root directory 5 Press Save to confirm saving When completed a Save message appears at the bottom of the display The file will not be saved if the Note power is turned off or the USB flash drive is removed before completion GW INSTEK SAVE RECALL File utilities To edit the USB drive contents File create delete rename files and folders press File Utilities For details see page 99 Saving the waveform Procedure 1 For saving to USB flash M e i drive Insert the USB flash drive into the front panel L y USB port l Recall Recall 2 Pre
10. 29 GW INSTEK GDS 1000 U Series User Manual Measure key Measure 1 1 000kHz 2 3 003kHz Duty Cycle 1 50 01 2 49 88 Rise Time 1 76 20us 2 70 11us Turn on off measurement Select measurement type Select measurement item Go back to previous menu Run Stop key Measure Voltage Voltage Time Previous Menu Measure Voltage Time g VAR or Icon F3 gt VARO Previous Menu Run Stop Freeze unfreeze waveform or trigger Run Stop 30 GW INSTEK QUICK REFERENCE Save Recall key 1 9 Save Recall Save Recall Default Save RI gt To Save Setup Setup Setup Save gt To Save Waveform Waveform Recall To Recall Save To Save gt gt Setup gt setup Image gt Image Recall To Recall Save To Save Waveform gt Waveform Al gt m Display To Display Refs gt Refs Switch to Save or Recall menu Save Recall Recall default setup Default Setup Save Recall key 2 9 hepall Setup Select other menu a lt Recall Setup Tas Select setup source Source VAR O Recall Recall setup TA gt To Fie Utities Recall Go to USB file utilities File Utilities GW INSTEK GDS 1000 U Series User Manual Save Recall key 3 9 Recall Waveform Recall gt Waveform Source Memory Destination Recall File Utilities gt Memory USB Ref A B USB
11. 4 Press Standard repeatedly to Standard select the video standard NTSC Range NTSC PAL SECAM 5 Press Polarity repeatedly to Polarity select the video signal polarity fL Range positive negative 6 Press Line repeatedly to Line select the video field line Use the Variable knob to select the field VARIABLE N g Field NTSC 1 262 Field 2 1 263 Field 1 PAL SECAM 1 312 Field 2 1 313 Field1 GW INSTEK GDS 1000 U Series User Manual Configuring the pulse width trigger Procedure 1 Press the Trigger menu key ED 2 Press Type repeatedly to Type select pulse width trigger Pulse The pulse width trigger indicator appears at the bottom of the display 3 Press Source repeatedly to Source select the trigger source CH1 Range Channel 1 2 Ext 4 Press Mode repeatedly to Mode select the trigger mode Auto Auto or Normal To select the Single trigger mode SINGLE press the Single key Range Auto Normal 5 Press When repeatedly to When lt select the pulse condition 20 0ns Then use the Variable knob to set the pulse width VARIABLE Oe gt N g Condition gt lt Width 20ns 10s 6 Press Slope Coupling to set Slope trigger slope and coupling ouplin g GW INSTEK CONFIGURATION 7 Press Slope repeatedly to Slope select the trigger slope which also appears at the bottom of the display
12. Press Operation repeatedly to select addition or subtraction 4 The math measurement result appears in the display 5 To move the math result vertically use the Variable knob The position will be displayed in Position 6 To clear the math result from the display press the Math key again Using the FFT function CH1 CH2 OO MATH Operation CH1 CH2 Unit Div 2V Position 0 00 Div VARIABLE I A MATH Procedure 1 Press the Math key 2 Press Operation repeatedly to select FFT 3 Press Source repeatedly to select the source channel MATH C Operation FFT Source CH1 GW INSTEK GDS 1000 U Series User Manual 4 Press Window repeatedly to Window select the FFT window type Hanning 5 The FFT result appears The horizontal scale changes from time to frequency and the vertical scale from voltage to dB 6 To move the FFT waveform Position vertically press Position 0 00 Div and use the Variable knob VARIABLE a gt gt N 9 zZ Range 12 00 Div 12 00 Div 7 To select the vertical scale of Unit Div FFT waveform press 1dB Unit Div repeatedly Range 1 2 5 10 20 dB Div 8 To clear the FFT result from 4 the display press the Math key again 60 GW INSTEK MEASUREMENT Go No Go Testing Overview Background Go NoGo testing checks if a waveform confo
13. ready to begin 70 GW INSTEK MEASUREMENT Run Data logging Background Ensure the data source page 69 and data logging setup has been set page 69 Procedure 1 Insert a USB flash drive into ea the USB front panel port 2 Press the Utility key C 3 Press the More key More 4 Press the Data logging Menu Data loggi key Menu 5 Press Data logging to turn Data login data logging On On Data image files start logging to the USB flash drive automatically To stop the Data logging press the Data logging key again 71 GW INSTEK GDS 1000 U Series User Manual ConNFIGURATION 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 Selecting the acquisition mode Procedure 1 Press the Acquire key oa 2 Select the acquisition mode between Normal Average Normal and Peak Detect Average Peak Detect Range Normal All of the acquired data is used to draw the waveform 72 GW INSTEK CONFIGURATION Average Peak detect 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
14. roll mode Root mean square measure Run stop fagiani S AE E A PENA A display image csececeeeeeeeee 106 MENU ADCO Lassies ssessssecsssissencsscsscanaases 31 SCCUP o eeeeseseseseseseeneseseseseseseseeneeeenes 104 specification WAVELOTIN ccscesessesesscsesseseseeseees 105 Save all ou cceccessesssesseceesseees 108 MENU ALEC cisviccccisscssesscssnconasecestones 35 SEGA Mes ii ides dest eeetissiciases RE 86 Security lock slot 19 Serial nUMbET cceeeeeeteeee 94 Service operation about disassembly cccceeesees 9 CONTIENE E 121 Setting the handle 00 21 Setting up the oscilloscope 21 Setup default contents cccceeeseeeeees 43 file format emnerne how to save SAVE MENU tree cessceseesseeeeeees 33 Single trigger 92 Single trigger mode 00 86 Specifications wees 123 FAQ avscdeecesiecesrnvsavennetyccesns ssunstseyecess gt 121 Subtraction ccccsecseeteesseseeee 59 System information 00 94 time cursor tracking u s 55 Timebase indicator c 00 78 TIS BOM ics csssssesivcesteeseaversivesbeenstes 85 COUPLING ccccsarssccesesacesesensonverseesconsvces 87 132 IAGICALOL ss ciassccsiseisieesacsceesvetstvae steels level KNOD cecceeeseeeeeeeeteeeseesees menu tree a parametetasnenonsscieasiiie pulse WACK sscccorssserecscesccesevsseners specification 124 status indicator video o eeeeeeeee
15. s ss ssssssssssssssressesresesresreresresresesses 112 Recalling a waveform s essesissssssesiesisssrerrerresrrerresresrrerrerrene 113 MAINTENANCE oossseenesesenssesesssersssessssssesseeeo 116 Vertical Resolution Calibration esssssssesseesesererereesrsssee 116 Probe Compensation sesssssssessssesssssresssseeressesrrssssressssereee 117 FAQ viccesecssscsecsssesecsasesessasecessusesecsueesessuseceeenves 119 The input signal does not appear in the display 119 want to remove some contents from the display 119 The waveform does not update frozen cee 120 The probe waveform is distorted eeeeseseteteeeeeees 120 Autoset does not catch the signal well eee 120 want to clean up the cluttered panel settings 0 0 0 0 120 The saved display image is too dark on the background 120 The accuracy does not match the specifications 121 AP PEN DIX ivsieccssnancssawenwerevencmepeaite PO P Fuse Replacement essernida 122 GDS 1000 U Series Specifications ccccececeeseeeeeeeeeeees 123 Model specific specifications s s sesesesieierererererreerrerree 123 Common specifications seesssessessesseessesresssessesseeseessessessees 124 Probe Specifications s sesesssssserreessessssssrerrressssesteereress 126 GDS 1052 U amp GDS 1072 U Probe sses 126 GDS 1102 U Probe scseicessstsscassscnssecsostecdsaosensstenvccoevachvcasaas 127 DIMENSIONS 3s i ssissecssicctiascasesacocsssscssataateasstsacesnseas
16. Average number 2 4 8 16 32 64 128 256 To activate the Peak detect mode press Peak Detect Only the minimum and maximum value pairs for each acquisition interval bucket are used This mode is useful for catching abnormal glitches in a signal Peak detect effect 1 One of the probe PAN using the probe compensation waveforms comp waveform can demonstrate the peak detection mode Connect the probe to the probe compensation output 2 Press the Utility key C 3 Press ProbeComp ProbeComp Menu 4 Press Wave Type and select Wave Type the TUW waveform rr 5 Press the Autoset key The oscilloscope positions the waveform in the center of the display 6 Press the Acquire key Acquire 73 GW INSTEK GDS 1000 U Series User Manual 7 Press Normal Normal 8 Press Peak Detect and see Peak that a spike noise is Detect captured Example The peak detect mode reveals the occasional glitch Normal mode Peak detect mode LI SEE a a a aa LERE gt aaa 74 GW INSTEK CONFIGURATION Real time vs Equivalent time sampling mode Backgrounds 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 One sampled data is used to reconstruct a single sampling waveform Short time events might get lost if the sampling rate gets too hi
17. BMP for data or image files respectively At each timed interval data or an image file is saved and the file number incremented For example DS0000 is the first logged data DS0001 is the second and so on 68 GW INSTEK MEASUREMENT Edit Source Utility Procedure 1 Press the Utility key 2 Press the More key More 3 Press the Data logging Menu Data loggi key al ie Menu 4 Press Source repeatedly to Source select the source channel CH1 CH1 or CH2 Edit Setup Parameters Background The logging function must set the type of data that will be logged waveform image the capture interval time and the duration of the data logging Utility Procedure 1 Press the Utility key 2 Press the More key More 3 Press the Data logging Menu Data loggi key Menu 4 Press the Setup key Setup GW INSTEK GDS 1000 U Series User Manual 5 Press Save repeatedly to log Save data or screen images Waveform 6 Press Interval and use the Interval Variable knob to select the 2 mins interval time VARIABLE AN cZ S rae Interval 2 secs 2min duration 5 min timig 2 secs 5 min duration 5 30 min 2 secs 30 min duration 30 min 7 Press Duration and use the Duration Variable knob to set the 5 mins duration time VARIABLE AN 9 Z Duration 5 mins 100 hours 8 Press Previous menu to Previous return to the Data logging Menu menu Data logging is now
18. Language selection differs according to the region to which the oscilloscope is shipped e English e Chinese traditional e Chinese simplified Japanese e Korean e French e German e Russian e Portuguese e Italian e Polish e Spanish 94 GW INSTEK CONFIGURATION Utility 2 Press Language repeatedly to Language select the language English Procedure 1 Press the Utility key 95 GW INSTEK GDS 1000 U Series User Manual SAVE RECALL The save function allows saving display images waveform data and panel settings into the oscilloscope s internal memory or to the front panel USB port The recall function allows recalling the default factory settings waveform data and panel settings from the oscilloscope s internal memory or from USB File Structures Three types of file are available display image waveform file and panel settings Display image file format Format xxxx bmp Windows bitmap format Contents The current display image in 234 x 320 pixels color mode The background color can be inverted Ink saver function Waveform file format Format xxxx csv Comma separated values format which can be opened in spreadsheet applications such as Microsoft Excel Waveform type CH1 2 Input channel signal Math Math operation result page 5858 Storage location Internal The oscilloscope s internal memory memory which can hold 15 waveforms 96 GW INSTEK SAVE RECALL
19. Menu Utility key 10 10 Self CAL Menu Self Cal Vertical gt Start Vertical gt Calibration Start Vertical Calibration Vertical GW INSTEK QUICK REFERENCE Default Settings Here are the factory installed panel settings which Save Recall appear when pressing the Save Recall key pies Default Setup Acquisition Mode Normal Channel Scale 2V Div Invert Off Coupling DC Probe attenuation voltage x1 BW limit Off Channel 1 amp 2 On Cursor Source CH1 Cursor Off Display Type Vectors Accumulate Off Grid Full EA Horizontal Scale 2 5us Div Mode Main Timebase Math Type Add Position 0 00 Div Measure Item Vpp Vavg Frequency Duty Cycle Rise Time Trigger Type Edge Source Channel1 Mode Auto Slope _ Coupling DC Rejection Off Noise Rejection Off Utility Hardcopy SaveImage ProbeComp Square InkSaver On wave 1k 50 duty cycle Go NoGo Go NoGo Off Source CH1 When Violating Stop Data Logging Data logging Off Setup Waveform Duration 5 mins Source CH1 Interval 2 secs 43 GW INSTEK Built in 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 GDS 1000 U Series User Manual Help quire Display Utility Autoset Applicable keys OOOC or Measure Save Recall Hardcopy OoOod c Vertical
20. Range Rising edge falling edge 8 Press Coupling repeatedly to Coupling select the trigger coupling AC Range DC AC 9 Press Rejection to select the Rejection frequency rejection mode Off Range LF HF Off 10 Press Noise Rej to turn the Noise Rej noise rejection on or off Off Range On Off 11 Press Previous menu to go Previous back to the previous menu Menu Manually triggering the signal N Note This section describes how to manually Mote trigger the input signals when the oscilloscope does not capture them This section applies to the Normal and Single trigger mode since in the Auto trigger mode the oscilloscope keeps updating the input signal regardless of the trigger conditions 91 GW INSTEK GDS 1000 U Series User Manual To acquire the To acquire the input signal TORE signal regardless regardless of the trigger of trigger condition press the Force key conditions The oscilloscope captures the signals once In the Single Press the Single key to start SINGLE trigger mode waiting for the trigger condition To break out of the Run Stop 92 Single mode press the Run Stop key The trigger mode changes to the Normal mode GW INSTEK CONFIGURATION Rear Panel USB Port Interface The Remote control interface section describes how to set up the USB interface for PC connection The details of remote control commands are described in the GDS 1000 U Programming Manua
21. SSE Horizontal MENU Trigger MENU U SINGLE Q FORCE 0 Procedure 1 Press the Help key The display changes to the Help mode 2 Press a functional key to access its help contents example Acquire key 3 Use the Variable knob to scroll the Help contents up and down 4 Press the Help key again to exit the Help mode Help U Acquire Q VARIABLE z D z Help U GW INSTEK MEASUREMENT M EASUREMENT The Measurement chapter describes how to properly observe a signal using the oscilloscope s basic functions and how to observe a signal ina detailed manner using some of the advanced functions such as Automatic measurements cursor measurements and math operations Basic Measurements This section describes the basic operations required in capturing and viewing an input signal For more detailed operations see the following chapters e Measurements from page 45 e Configuration from page 72 Activating a channel Activating a To activate an input channel CH1 CH2 channel press the Channel key CH1 or C C CH2 The channel indicator or appears at the left side of the display and the channel icon changes accordingly Continued on next page 45 GW INSTEK GDS 1000 U Series User Manual Channel 1 off Channel 1 on v 8 0005 autos m _ CHI v 8 0005 Trisd m CHI Coupling T Coupling Invert Channel Inver
22. all image waveform setup Save Recall Using the Save Recall key can also save files with more options For details see page 103 Functionalities Save image Saves the current display image into bmp a USB flash drive Save all Saves the following items into a USB flash drive e Current display image bmp e Current system settings set e Current waveform data csv Procedure 1 Insert a USB flash drive into eg the front panel USB port 2 Press the Utility key C 3 Press Hardcopy Menu Hardcopy Menu 4 Press Function repeatedly to _ select Save Image or Save All Function Save All 101 GW INSTEK GDS 1000 U Series User Manual 5 To invert the color in the display image press Ink Saver This turns Ink Saver Off on or off Ink Saver 6 Press the Hardcopy key Hardcopy The file or folder will be saved to the root directory of the USB flash drive 102 GW INSTEK SAVE RECALL Save This section describes how to save data using the Save Recall menu File type source destination Item Source Panel setup xxxx Set Waveform data xxxx csv Display image xxxx bmp Save All Panel settings Channel 1 2 Math operation result Reference waveform A B Display image Display image xxxx bmp Waveform data xxxx csv Panel settings xxxx set Destination Internal memory S1
23. but neither temperature nor humidity is controlled Storage e Location Indoor ore e Storage Temperature 10 C 60 C no condensation e Relative Humidity 93 40 C 65 41 C 60 C Disposal Do not dispose this instrument as unsorted municipal waste Please use a separate collection 4 facility or contact the supplier from which this instrument was purchased Please make sure discarded electrical waste is properly recycled to reduce environmental impact 11 GW INSTEK GDS 1000 U Series User Manual Power cord for the United Kingdom When using the oscilloscope in the United Kingdom make sure the power cord meets the following safety instructions NOTE This lead appliance must only be wired by competent persons ANG THIS APPLIANCE MUST BE EARTHED IMPORTANT The wires in this lead are coloured in accordance with the following code Green Yellow Earth Of Blue Neutral Osage Brown Live Phase As the colours of the wires in main leads may not correspond with the coloured marking identified in your plug appliance proceed as follows The wire which is coloured Green amp Yellow must be connected to the Earth terminal marked with either the letter E the earth symbol or coloured Green Green amp Yellow The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Blue or Black The wire which is coloured Brown must be co
24. e Math operation Addition Subtraction FFT e Data logging e Go NoGo testing e Edge video pulse width trigger e Compact size W 310 x D 140 x H 142 mm 13 GW INSTEK GDS 1000 U Series User Manual Interface e USB 2 0 full speed interface for saving and recalling data e Calibration output e External trigger input e USB B type slave interface for remote control 14 GW INSTEK GETTING STARTED Panel Overview Front Panel LCD Display Function keys nob V ARIABLE Vertical VOLTS DIV Horizontal POSITION knob POSITION nob knob Menu keys Trigger LEVEL knob Horizontal MENU key Trigger keys TIME DIV knob a EXT TRIG gt eea F K terminal Power USB port Probe CH2 CH2 Ground switch port compensation terminal MATH keys terminal Terminal output LCD display TFT color 320 x 234 resolution wide angle view LCD display Function keys lt gt Activates the functions which F1 top to appear in the left side of the LCD F5 bottom display Variable knob SEE Increases or decreases values
25. move both cursors at once Y1Y2 press Y1Y2 and then use the 10 5mV Variable knob Remove cursors Press Cursor to remove the Cursor onscreen cursors 57 GW INSTEK GDS 1000 U Series User Manual Math Operations The Math operations can add subtract or perform FFT 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 amp CH2 signals Subtraction Extracts the amplitude difference between CH1 amp CH2 FFT Performs a FFT calculation on a signal Four types of FFT windows are available Hanning Flattop Rectangular and Blackman Hanning FFT Frequency resolution Good window Amplitude resolution Not good Suitable for Frequency measurement on periodic waveforms Flattop FFT Frequency resolution Not good window Amplitude resolution Good Suitable for Amplitude measurement on periodic waveforms Rectangular FFT Frequency resolution Very good window Amplitude resolution Bad 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 58 GW INSTEK MEASUREMENT Adding subtracting or multiplying signals Procedure 1 Activate both CH1 and CH2 2 Press the Math key 3
26. only Save Utilities To File Utilities Go to USB file utilities File Utilities GW INSTEK QUICK REFERENCE Save Recall key 8 9 Save All Select other menu Save e gt All Save All Ink Saver 3 Off Turn on off ink saver Destinati E Ink Saver Save Select destination Fil USB only Ke gt To File U ilities Destination T VAR O Save all Save Go to USB file utilities File Utilities Save Recall key 9 9 File Utilities Select file folder Enter Select Character VAR O select New Back Folder Space Create or rename folder file Rename New Folder Rename Deldie Se VAR Enter character Backspace Save Previous menu Previous Previous Menu Menu Delete folder file Delete Go to previous menu Previous menu GW INSTEK GDS 1000 U Series User Manual Trigger key 1 5 Trigger Type MENU Select Trigger type Type Type Edge Source CHI gt Slope A Coupling Mode Auto Trigger key 2 5 Video Trigger Type Video Type Source CH Select trigger source Standard NTSG Source ae Select video standard ine Standard Select video polarity Polarity Select video field line Line var Select video trigger type GW INSTEK QUICK REFERENCE Trigger key 3 5 Edge Trigger Select edge trigger ty
27. trigger condition Auto Updating the input signal regardless of trigger conditions STOP Triggering is stopped For trigger setting details see page 84 Input signal Updates the input signal frequency the trigger frequency source signal in real time lt 2Hz Indicates that the signal frequency is less than the lower frequency limit 2Hz and thus not accurate Trigger Shows the trigger source type and slope In case configuration of the Video trigger shows the trigger source and polarity Horizontal status Shows the channel configurations coupling mode Vertical status vertical scale and horizontal scale 20 GW INSTEK GETTING STARTED 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 Procedure 1 Reset the system by recalling Save Recall Pull both bases of SS the handle out slightly a Turn to one of the three preset positions Connect the power cord D ETa Press the power switch The POWER al 20 display will become active in approximately 10 O seconds Default Setup the factory settings Press the Save
28. with whole cycle 100x Pulse Width Cycle 53 GW INSTEK GDS 1000 U Series User Manual Automatically measuring the input signals Viewing the 1 Press the Measure key Meas measurement result 2 The measurement results appear on the menu bar constantly updated 5 measurement slots F1 to F5 can be customized v v 0 000s Trigu Ja _Measure Vpp 1 0 00V Vavg 1 8 00V Frequency i 4 1 006kH2 Y Duty Cycle 1 49 60 2 chan off Rise Time 1 286 Gus 2 chan off O 508m 250us Och EDGE FDC 2 SOGmV O 1 00731kHz Selecting a 3 Press F3 repeatedly to select Voltage measurement the measurement type Vpp item Voltage or Time 4 Use the Variable knob to VARIABLE select the measurement item 4 5 Press Previous Menu to Previous confirm the item selection and to go back to the measurement results view Menu 54 GW INSTEK MEASUREMENT Cursor Measurements Cursor line horizontal or vertical shows the precise position of the input waveforms or the math operation results The horizontal cursor can track time voltage and frequency whilst the vertical cursor can track voltage Using the horizontal cursors Cursor Procedure 1 Press the Cursor key The cursors appear in the display 2 Press XY to select the horizontal X1 amp X2 cursor XeY 3 Press Source repeatedly to Source select the source channel CHI Range CH1 2 M
29. 52 Ground Peak voltage measure 52 COUPLING ees ieisratsissasisssssaantbvaisssoniedene 82 Power on off SYMDOI sy sissiddcessassstasctercerninetowaaecs 8 safety instruction cee 10 terminal sel7 switch OVErViCW eee 19 Hanning window 58 Preshoot voltage measure 53 Hardcopy scecsseessteeseeseeeeeeneee 101 probe Hardcopy Save All attenuation level oo 84 PGT P AEN A 40 Probe saitsstinienceidanaics 117 Hardcopy Save image compensation menu tree aias 41 menu tree compensation signal overview 50 Help PETE faq Upeasededacieosedgedesodeaveeseduascedeesere esos 120 Pee sare ices as caves east peak detect demonstration 73 High voltage measure 53 Pulse time MEASUTE s eoeeeeeeeeeeres 53 Horizontal Pulse width trigger s s 90 basic Operation COnN a lt 86 cursor operation si Ba ee oF AMON LEOE esses ccs su csescncsessnicscssevigee real time sampling JD Ta a TO a Rear panel diagram 00 19 scale ie Recall iipitin 110 Shortt eenia default set P issisiicississiiiis 111 Specificatii iinenen isis MENU ELC oo eeeseseeeeseteeseseseeeeeenens 31 TEC 1010 1 woo reference waveform u s 112 GW INSTEK GDS 1000 U Series User Manual Rectangular window 58 Reference waveform Men Wet snerunnp ai 32 recall arrien EA 112 Remote control interface 93 Rising time measure 5 53
30. ATH 4 The cursor measurement results will appear in the menu F2 to F4 Parameters X1 Time position of the left cursor relative to zero X2 Time position of the right cursor relative to zero X1X2 The difference between the X1 and X2 uS The time difference between X1 and X2 Hz The time distance converted to frequency V The voltage difference X1 X2 Moving the To move the left cursor press X1 horizontal X1 and then use the Variable en cursors knob 55 GW INSTEK GDS 1000 U Series User Manual To move the right cursor press X2 X2 and then use the Variable 22 9us 0 000V knob To move both cursors at once eS i press X1X2 and then use the Bae Variable knob Remove cursors Press Cursor to remove the Cursor onscreen cursors C Using the vertical cursors Procedure 1 Press the Cursor key cursor 2 Press XY to select the vertical Y1 amp Y2 cursor XoY 3 Press Source repeatedly to Source select the source channel CH1 Range CH1 2 MATH 4 The cursor measurement results will appear in the menu Parameters Y1 Voltage level of the upper cursor Y2 Voltage level of the lower cursor Y1Y2 The difference between the upper and lower cursor Moving the To move the upper cursor Y1 vertical cursors press Y1 and then use the 123 4mV Variable knob To move the lower cursor y2 press Y2 and then use the 12 9mV Variable knob 56 GW INSTEK MEASUREMENT To
31. Digital Storage Oscilloscope GDS 1000 U Series USER MANUAL GW INSTEK PART NO 82DS 112AUEB1 Dad ISO 9001 CERTIFIED MANUFACTURER finn GW INSTEK April 2013 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 Good Will Instrument Co Ltd No 7 1 Jhongsing Rd Tucheng Dist New Taipei City 236 Taiwan GW INSTEK TABLE OF CONTENTS Table of Contents SAFETY INSTRUCTIONS wecisesccoseanivcosvervenssacesads 8 Safety Symbol sieciceceivsccissscsucessoceestasnsinsedsvascenesscterestnasvevasedt crest Safety Guidelines Power cord for the United Kingdom cceeesesesseeseeseseees 12 GETTING STARTED sissicnsccicsnssdssacevseccassnsaceucdis 13 Main Features ccccccccccccececcececeeeeeeeeeeeneeeeneeaegeeseeseneneeaens 13 Patel OVERVIEW aene ar E EEE 15 Front Paneli snemom en E E E S 15 Rear Panel ccccccccssccssscessccssscssseessecessecsseceseessescsseesseeenseeees 19 Display ccssvescsvicsssondsesdssansnstssonangies cdscnbdond vosdubarecsddeevaveatecdeaases 20 Settin
32. Recall key then Default Setup For details regarding the factory settings see page 43 21 GW INSTEK GDS 1000 U Series User Manual 6 Connect the probe between the Channel1 input terminal and probe compensation signal output 2Vp p 1kHz square wave 7 Set the probe attenuation voltage to x10 iHn 8 Press the Autoset key A square waveform will appear in the center of the display For details on Autoset see page 46 9 Press the Display key then Display Type and select the vector waveform type Type Vectors 22 GW INSTEK GETTING STARTED 10 Turn the adjustment point on the probe to flatten the square waveform edge H A g i i meee fe es over Normal Under Compensation Compensation 11 Setting up the oscilloscope is complete You may continue with the other operations Measurement page 45 Configuration page 72 23 GW INSTEK GDS 1000 U Series User Manual Quick REFERENCE This chapter lists the oscilloscope menu tree operation shortcuts built in help coverage and default factory settings Use this chapter as a handy reference to access the oscilloscope functions Menu Tree and Shortcuts Conventions Examples Normal Press the functional key for Normal Average Repeatedly press the functional key for Average Normal Average Select a menu from Normal
33. Roll 50ms div 50s div Modes Main Window Window Zoom Roll X Y Accuracy 0 01 Pre Trigger 10 div maximum Post Trigger 1000 div X Y Mode X Axis Input Channel 1 Y Axis Input Channel 2 Phase Shift 3 at 100kHz Signal Acquisition Real Time 250M Sa s maximum Equivalent 25G Sa s maximum Vertical 8 bits Resolution Record Length 4k points maximum Acquisition Normal Peak Detect Average Peak Detection 10ns 500ns div 50s div Average 2 4 8 16 32 64 128 256 GW INSTEK APPENDIX Cursors and Measurement Voltage Vpp Vamp Vavg Vrms Vhi Vlo Vmax Vmin Rise Preshoot Overshoot Fall Preshoot Overshoot Time Freq Period Rise Time Fall Time Width Width Duty Cycle Voltage difference AV and Time difference AT between cursors Resolution 6 digits Accuracy 2 Signal source All available trigger source Cursors Auto Counter except the Video trigger Control Panel Autoset Automatically adjust Vertical Volt div Function Horizontal Time div and Trigger level Save Recall Up to 15 sets of measurement conditions and waveforms Display LCD 5 7 inch TFT brightness adjustable Resolution dots 234 Vertical x 320 Horizontal Graticule 8 x 10 divisions Display Contrast Adjustable Interface USB Slave USB 2 0 full speed CDC ACM Connector USB Host Image BMP and waveform data CSV connector Probe Frequency range 1kHz 100kHz adjustable 1kHz step Compensation Signal
34. TEK MEASUREMENT Div 0 04 Div 4 0 Div 9 When the Auto template has Save amp been configured press Save Create amp Create to save the template Auto template 85 s 8_ M EDT _ Template Tolerance Auto Source CH 1 Tolerance 6 8 x Save amp Create Source waveform Previous Menu 8 5V Sns Ochi EDGE fDC 2 mU 66 6599Hz Run Go NoGo Tests Utility Procedure 1 Press the Utility key 2 Press the More key More 3 Press the Go NoGo Menu Go NoGo key Menu Ensure the source signal and boundary templates appear on the screen 67 GW INSTEK GDS 1000 U Series User Manual 4 Press Go NoGo The test Go NoGo starts and stops according to On the conditions set on page 62 63 To stop the test that has already started press Go NoGo again 5 The test results appear in the Ratio soft key The numerator denotes the total number of failed tests The denominator denotes the total number of tests Numerator Number of failed tests Denominator Total number of tests Data Logging Overview Background The Data logging function allows you to log data or a screen image over timed intervals for up to 100 hours to a USB flash drive The data or images are stored to a USB flash drive in a directory named LogXXXX LogXXXX is incremented each time the data logging function is used The files saved in the LogXXXX directory are named DSXXXX CSV or DSXXXX
35. ain N AA Na Window Window ev ee VA Ge bed w oo OM Gime T SoU LEEI Gamme XY mode 81 GW INSTEK GDS 1000 U Series User Manual Vertical View Channel The Vertical view section describes how to set the vertical scale position bandwidth limitation coupling mode and attenuation Moving the waveform position vertically Qo Procedure To move the waveform upor 7 jA down turn the vertical position V knob for each channel Selecting the vertical scale Procedure To change the vertical scale bet turn the VOLTS DIV knob left down or right up Range 2mV Div 10V Div 1 2 5 increments Selecting the coupling mode Procedure 1 Press the Channel key C 2 Press Coupling repeatedly to Coupling select the coupling mode AG Range m om DC coupling mode The whole portion AC and DC of the signal appears on the display roo Ground coupling mode The display shows only the zero voltage level as a horizontal line This mode is useful for measuring the signal amplitude with respect to the ground level 82 GW INSTEK CONFIGURATION oN 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 Inverting the waveform vertically Procedure 1 Press the Channel key C 2 Press Invert The waveform Invert becomes inverted upside Off down and the Channel indicator in the displa
36. al operation See page46 for details want to clean up the cluttered panel settings Recall the default settings by pressing the Save Recall key Default Setting For default setting contents see page 43 The saved display image is too dark on the background Use the Inksaver function which reverses the background color For details see page 106 GW INSTEK FAQ 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 For more information contact your local dealer or GWInstek at www gwinstek com marketing goodwill com tw 121 GW INSTEK GDS 1000 U Series User Manual A pren DIX Fuse Replacement Procedure 1 Remove the power cord and remove the fuse socket using a minus driver Replace the fuse in the holder Ratings TIA 250V 122 GW INSTEK APPENDIX GDS 1000 U Series Specifications The specifications apply when the oscilloscope is powered on for at least 30 minutes under 20 C 30 C Model specific specifications GDS 1052 U Bandwidth 3dB DC coupling DC 50MHz AC coupling 10Hz SOMHz Bandwidth Limit 20MHz 3dB Trigger Sensitivity 0 5div or 5mV DC 25MHz 1 5div or 15mV 25MHz 50MHz External Trigger 50mV DC 25MHz Sensitivity 100mV 25MHz 50MHz Rise Time lt 7ns approx GDS 1072 U Bandwidth 3dB DC coup
37. and moves to the next or previous Ss parameter Acquire key ED Configures the acquisition mode C page 72 Display key D Configures the display settings page 76 Cursor key Cursor Runs cursor measurements page 55 Continued on next page 15 GW INSTEK GDS 1000 U Series User Manual Utility key Utility O Configures the Hardcopy function page 101 shows the system status page 94 selects the menu language page 94 runs the self calibration page 116 configures the probe compensation signal page 117 and selects the USB host type page 93 Help key Help Shows the Help contents on the display page 44 Autoset key Autoset Automatically configures the horizontal vertical and trigger settings according to the input signal page 46 Measure key Configures and runs automatic measurements page 52 Save Recall key Saves and recalls images waveforms or panel settings page 96 Hardcopy key Stores images waveforms or panel settings to USB page 101 Run Stop key Runs or stops triggering page 47 Trigger level knob 4 n po 2 x 2 z D z3 g S S oO O D o fl 3 8 5 m ko lt D o 5 oS Sets the trigger level page 85 Trigger menu key 2 Ih C Configures the trigger settings page 85 Single trigger key Selects the single triggering mode page 91 Trigger for
38. ce key n v g Zz 3 2 m m Acquires the input signal once regardless of the trigger condition at the time page 91 16 GW INSTEK GETTING STARTED Horizontal menu key m Zz Cc U Configures the horizontal view page 78 Horizontal al D Moves the waveform horizontally position knob Ns page 78 TIME DIV knob TMEO Selects the horizontal scale page 78 Vertical position FNA Moves the waveform vertically knob WIV page 82 CH1 CH2 key B Configures the vertical scale and coupling mode for each channel page 82 VOLTS DIV knob VOLTS DIV Selects the vertical scale page 82 Input terminal o y N Accepts input signals IMO 2 input impedance BNC terminal Ground terminal O Accepts the DUT ground lead to achieve a common ground MATH key MATH Performs math operations page 58 USB port Facilitates transferring waveform data display images and panel settings page 99 Probe gel Outputs a 2Vp p square signal for compensation compensating the probe page output 117 or demonstration EXT TRIG External trigger input Accepts an external trigger signal page 85 17 GW INSTEK GDS 1000 U Series User Manual POWER n Power switch alao Powers the oscilloscope on or off 18 GW INSTEK GETTING STARTED
39. ctive the following standards were applied EMC EN 61326 1 Electrical equipment for measurement control and EN 61326 2 1 laboratory use EMC requirements 2006 Conducted and Radiated Emissions Electrostatic Discharge EN 55011 2009 A1 2010 EN 61000 4 2 2009 Current Harmonic Radiated Immunity EN 61000 3 2 2006 A1 2009 A2 2009 EN 61000 4 3 2006 A1 2008 A2 2010 Voltage Fluctuation Electrical Fast Transients EN 61000 3 3 2008 EN 61000 4 4 2004 A1 2010 Surge Immunity EN 61000 4 5 2006 Conducted Susceptibility EN 61000 4 6 2009 Power Frequency Magnetic Field EN 61000 4 8 2010 Voltage Dips Interrupts IEC EN 61000 4 11 2004 Safety Low Voltage Equipment Directive 2006 95 EC Safety Requirements EN 61010 1 2010 EN 61010 2 030 2010 129 GW INSTEK GDS 1000 U Series User Manual NDEX AC coupling uo ccc 83 Accumulating waveform 76 Acquisition 0 cece cesses ss 72 menu tree specification 124 Addition sssiassnnnginsanis 59 Amplitude measure 52 auto set eE EEE E E 119 120 AUTO SEE elpa n testssttedaeede 46 EXCEPT ON ian renn s 47 SPeCifiCALION cceseeceeseeeeeeeenes 125 AULO MIS COD issii 85 Automatic measurement 54 MENU MES sn aT OA 30 overview w92 specification 125 Average acqu
40. cycle for square wave Duty Cycle gt VAR O Go to previous menu Previous Menu Edit Template Max Source wot Tolerance 0 4 Save amp Create Previous Menu Max Min Auto Auto CH1 CH2 Max Min Ref A Ref B W01 W1 0 4 40 0 4DIV 40DIV To previous gt menu Switch between templates Template Select the template source Source Set the tolerance or Divisions Tolerance VAR O Save the template Save amp Create Go back to previous menu Previous Menu 41 GW INSTEK GDS 1000 U Series User Manual Utility key 8 10 Data Logging 1 2 Data logging Data logging Off Source CH1 Setup File Utilities Previous Menu On Off CH1 CH2 To the Edit gt menu USB only gt To File Utilities To previous menu Turn Data Logging On Off Data logging Set the logging source Source Go to the Data Logging Edit menu Setup Go to the File Utilities menu File Utilities Go back to previous menu Previous Menu Utility key 9 10 Data Logging 2 2 Edit Save Waveform Interval 2 secs Duration 5 mins Previous Menu Waveform Image 5 mins 100hrs To previ gt To previous menu Save the logs as waveform data or as image files Save Set the logging interval Interval gt VAR O Set the duration of the record log Duration gt VAR Go back to previous menu Previous
41. d use the Source Variable knob to select the W 01 waveform template VARIABLE gt i Max Waveform A Ref A W01 W15 Min Waveform B Ref B W01 W15 8 Press Position and use the Source Variable knob to set the waveform amplitude VARIABLE yas X 9 Repeat steps 5 7 for the other template setting Max or Min 10 When both Max and Min Save amp templates have been configured press Save amp Create to save the templates vey 8 0085 Trigd J EDIT Max Waveform A Template 3 N Max Position Source of Ref A Position Nf w 1 60 Diu Save amp Create Previous Menu 5U 5ms Ochi EDGE FDC 2 SGmU 068 6275Hz 65 GW INSTEK GDS 1000 U Series User Manual Auto 1 The template is based on the source signal Ensure the source signal appears on the display 2 Press the Utility key Utility 3 Press the More key More 4 Press the Go NoGo Menu Go NoGo key M gi enu 5 Press the Template Edit key Template gt Edit 6 Press Template repeatedly to Template select the Auto template Auto 7 Press Source and use the Source Variable knob to select the CH1 template source VARIABLE W gt 9 zZ Source CH1 CH2 8 Press Tolerance repeatedly to Tolerance choose the tolerance units 0 4 or Div Use the Variable knob to set the tolerance VARIABLE The tolerance is for both the z horizontal and vertical axis 0 4 40 0 66 GW INS
42. deways and TMEON 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 Zoom range Ins 25s 4 Press Window Zoom The Window specified range gets Zoom zoomed Example Setting the zoom width Zooming in handed 8 0005 Trigu fm Hor MENU ve 0 000s Trigu f Hor MENU Main Main j Window Window i hp pep eet 9 Wp W J Roll Roll XY xY O 5U ee WZ OCHI EDGE fOC Om Samy 2 Sus CHI EDGE FDC amy H D Seans 0 93 3830kHz mw 500ns 092 1656kHz Zoom width GW INSTEK 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 Procedure CH2 1 Connect the signals to Channel 1 X axis and Channel 2 Y axis juin e between the two waveforms MAX a CH1 2 Make sure both Channel 1 and 2 are activated C 3 Press the Horizontal key MENG 4 Press XY The display shows two waveforms in X Y XY format Channel 1 as X axis Channel 2 as Y axis Adjusting the X Y Horizontal position CH1 Position knob ede var Orn Horizontal scale CH1 Volts Div knob Vertical position CH2 Position knob Vertical scale CH2 Volts Div knob Example Main mode XY mode ver 0 0005 Teies fm Hor MENU Rutoo fm Hor MENU Main M
43. e When a USB flash drive is inserted into the indicator oscilloscope an indicator appears at the right bottom corner of the display The USB flash drive shouldn t be removed when a file is saved or retrieved from USB GW INSTEK GDS 1000 U Series User Manual Creatinganew 1 Move the cursor to the file folder renaming or folder location and press a file or folder New Folder or Rename The file folder name and the character map will appear on the display 2 Use the Variable knob to move the pointer to the characters Press Enter Character to add a character or Back Space to delete a character 3 When editing is complete press Save The new renamed file or folder will be saved New Folder Rename VARIABLE OS 9 z Enter Character Back Space Save Deleting a folder 1 Move the cursor to the or file folder or file location and press Delete The message Press F4 again to confirm this process appears at the bottom of the display 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 100 Delete Delete GW INSTEK SAVE RECALL Quick Save HardCopy Background The Hardcopy key works asa 2228 shortcut to save display images waveform data and panel settings onto a USB flash drive card The Hardcopy key can be configured into two types of operations save image and save
44. eeeeenees 91 Rear Panel USB Port Interface sisssicscssssentarcnsescorretmaaeiin 93 Systeri Setting Sierisvonsicsds iscrpi o Eana n E a E or a i 94 Viewing the system information s sssssessssssssssisrreesriesreesse 94 Selecting the language sssssssssssssssississsssressressesresreeseesresse 94 SAVE RECALL sesonon ss OO File StrUct te Sesiinae ei uaa aE 96 Display image file format s ssssssssessesesiesisererresrrrrerrerrereeerns 96 Waveform file format cccsceseseceseetetseseseeeseseseneeeeeeeeeesenees 96 Setup file forimatecscsiccessenscosnsctvscenesuecetctesessastecesvenuenstecnics 98 GW INSTEK GDS 1000 U Series User Manual Using the USB file utilities oo eeeeeeseeeeseereneneeees 99 Quick save Hard Copy smniwncsisiieimneiacen denen 101 DAVE etro o eO E N wena a O O 103 File type source destination ssssssssssssresisssrerrssrsresrsees 103 Saving the panel settings ccccsseeeseessesetenesesenenees 104 Saving the waveform ss ssssssssessisssissrisssressressriesriesreresene 105 Saving the display image ssssssssssssssssesrsessesrssrissessressssnees 106 Saving all panel settings display image waveform 108 Recall sowscsaydesindsnonanoayataseieis oanntnnyadensansboannnsely rena xananiydesne 110 File type source destination cesses eeeeeees 110 Recalling the default panel settings 111 Recalling a reference waveform to the display 04 112 Recalling panel settings
45. ees 89 UK power Cord 12 USB file OperatiOnic sccissisrvticcemaxizns 99 file utilities menu tree 0 35 USB for remote control 93 Utility KEY OVELVICW eseeseeseeseeeeeeteseesees 16 MENU CLC oo eeeeeeeeeeeeeseeseeseeeeeees 38 Vector Waveform ccceeeereeeee 76 Vertical 2stsce4asisziecendsseesceseeeoes basic operation cursor operation specification Video line Video trigger MENU tree eeescecessescesesesesesceteceesees voltage cursor tracking eeseeeceeeeteeeesees 55 Warning symbol ccceeeeee 8 waveform roll 01 ele a 79 ZOOM MOE eseesessesessesesseseseeseees 80 Waveform file format occ eeeeseeeeeeeeeeeseees 96 invert waveform ccccceeeeeeteees 83 recall specification zoom waveform GW INSTEK INDEX 133
46. en paisa neta Meas rement tems ccsscsssscescdeasstsstcccnsesesccsaeatssdsssauaseeds Automatically measuring the input signals Cursor Measurements s ssssssssssssssssrsrsrsrsrsrsrsrersrerererererere Using the horizontal Cursors s sssssssssssssssisessssssessesssesressrese Using the vertical CUFSOTS ssssssssssssissssssessesstessessesseersnssesseess Math Operation S soe sa ciacandapercabitianandaoneneh a nia ia OVE TVG Wise cdscsnssnedesescatsieesson esns enas E On a r ar Siea aori Adding subtracting or multiplying signals s99 Using the FFT function ss ss sseesssssssesrsesssesssssesssesstsserssererene 59 GO No Go TeStin Se s cecerieidedasiiia eee eie EE ETES 61 OVE VIG Wiss ssseiei ceases esses vasiscan vente is o Enisa EEVA S EENS R E TINE Es 61l Edit NOGO Whether RA 62 Edit SOURCE risiini isidir iniii 62 Edit NoGo Violation Conditions 1 63 Edit Template boundary 1 63 RUM GO NOGO TeStS 6 s c scsssessicsseasseassecestessecedearsncssdeosees 67 Data Logging serrera einiino a Se aib esne 68 OVEIVIOW A 68 GW INSTEK TABLE OF CONTENTS Edit SOULE csis cesvessscessugus cisesauasssvestacdivbies TONAN EEVEE EARR SEES 69 Edit Setup Parameters scsscssscossessssesesssscerscsescsessanenoeoes 69 R n Data logging sisisessriisessisieserissississssieousissiinsisssiesesiosiei 71 CONFIGURATION vow casccanmsyercrsanenscererieane 4 2 ACQUISITION gseteesdoteeuhsturtsdersueil sblanpen
47. er Procedure 1 Press the Trigger menu key 5 2 Press Type repeatedly to Type select edge trigger Edge gt 3 Press Source repeatedly to Source select the trigger source CH1 Range Channel 1 2 Line Ext 4 Press Mode repeatedly to Mode select the Auto or Normal Auto trigger mode To select the single trigger mode press SINGLE the Single key 87 GW INSTEK GDS 1000 U Series User Manual Range Auto Normal 5 Press Slope coupling to enter Slope into the trigger slope and Coupling coupling selection menu 6 Press Slope repeatedly to Slope select the trigger slope rising or falling edge ee Range Rising edge falling edge 7 Press Coupling repeatedly to Coupling select the trigger coupling AC DC or AC Range DC AC 8 Press Rejection to select the Rejection frequency rejection mode Off Range LF HF Off 9 Press Noise Rej to turn the Noise Rej noise rejection on or off Off Range On Off 10 Press Previous menu to go Previous back to the previous menu of Menu 88 GW INSTEK CONFIGURATION Configuring the video trigger Procedure 1 Press the Trigger menu key 2 Press Type repeatedly to Type J select video trigger The Video video trigger indicator appears at the bottom of the display 3 Press Source repeatedly to Source select the trigger source CH1 channel Range Channel 1 2
48. eries 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 Measurement items Overview Voltage type Time type Vpp Frequency t t Vmax Period I Vmin RiseTime 7 Vamp FallTime vhi Width f t Vlo Width LJ Vavg Dutycycle f 4 Vrms ROVShoot FOVShoot RPREShoot FPREShoot Voltage Vpp Difference between positive measurement and negative peak voltage items Vmax Vmin Vmax Positive peak voltage Vmin Negative peak voltage Vamp Difference between global high and global low voltage Vhi Vlo 52 GW INSTEK MEASUREMENT Vhi Global high voltage Vlo 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 wf paee cycle time 1 Freq Risetime L Rising time of the pulse 90 Falltime ee Falling time of the pulse 10 Width FE Positive pulse width Width Negative pulse width Lt Duty Cycle i i Ratio of signal pulse compared
49. g the Single key again will repeat the process The Single trigger status appears in the upper right corner of the display Searching Triggered Trig f os Trigger Stop mM Trigger Normal The oscilloscope acquires and updates the input signals only when a trigger event occurs The Normal trigger status appears in the upper right corner of the display Searching Triggered Trig O M Trigger Trigd f _ Trigger Video standard NTSC National Television System Committee video trigger PAL Phase Alternative by Line SECAM SEquential Couleur A M moire Sync polarity flL_ Positive polarity iden miggen t Negative polarity Video line Selects the trigger point in the video signal video trigger field 1or2 line 1 263 for NTSC 1 313 for PAL SECAM Pulse condition Sets the pulse width 20ns 10s and the triggering pulse trigger condition 86 GW INSTEK CONFIGURATION gt Longer than Equal to lt Shorter than Not equal to Trigger slope __x Triggers on the rising edge Triggers on the falling edge Trigger coupling AC Triggers only on AC component DC Triggers on AC DC component Frequency LF Puts a high pass filter and rejects the rejection frequency below 50kHz HF Puts a low pass filter and rejects the frequency above 50kHz Noise rejection Rejects noise signals Trigger level aS Using the trigger level knob moves the trigger point up or down Configuring the edge trigg
50. g up the OscillOSCO PG micusivnstsndmersiraiacdadaveeeaggisanmatens 21 QUICK REFERENCE sescpicuaiiacenineuctocseueansacons 24 Menu Tree and Shortcuts ccccceccecceceeeceeeeeseeecuecuseeeeeaees 24 Trigger key 1 5 Trigger key 2 5 GW INSTEK GDS 1000 U Series User Manual Trigger key 3 5 cisscscsccsvsesaccovssiesssvesescesnasas aN sa TTi rR WRI SSCP Key A D rn iee ATN AEAEE NEE Trigger key 5 5 vce Utility key 1 10 Utility 1 Utility 2 10 Utility 2 se Utility key 3 10 Utility 3 seerne Utility key 4 10 Hardcopy Save All Utility key 5 10 Hardcopy Save Image He Utility key 6 10 Probe compensation seses Utility key 7 10 Go NOGO sssssssssssssssssrsssssssresrssrsrenrsersreness Utility key 8 10 Data Logging 1 2 Utility key 9 10 Data Logging 2 2 Utility key 10 10 Self CAL Menu cceeeeeeeeeeeseeeeeeeeees Default Settings icteric td ete eae riirii ia a Built in Hel Pierrssrisisiis isror enio eeri iiaa ai MEASUREMENT seisnsscticessicavtonsesrsneainevacuanvee ed Basic Measurements cicetsasnscscadeasesbspnstendaaniversainae sedesedied sae 45 Activating a channel ccccccssssessseseesssessseseseeseeseasseensnens 45 Using Autoset Siiner ws 46 Running and stopping the trigger i A7 Changing the horizontal position and scale 48 Changing the vertical position and scale wee Using the probe compensation signal ccc Automatic VICASUTE MENUS iusssriss uieeiei
51. gh This mode is used when the sampling rate is relatively low 250MSa s or lower Equivalent time Multiple numbers of sampled data are sampling accumulated to reconstruct a single waveform Restores greater waveform details but takes longer to update the waveform This mode is used when the sampling rate becomes higher than 250MSa s The maximum equivalent time sampling rate is 25GSa s GW INSTEK GDS 1000 U Series User Manual Display The Display section describes how to configure the display settings drawing type waveform accumulation contrast adjustment and grid settings Selecting vector or dot drawing Procedure 1 Press the Display key Display 2 Press Type repeatedly to Type select the waveform Vectors drawing Types Dots Only the sampled dots are displayed Vectors The sampled dots are connected by lines Accumulating the waveform Background Accumulation preserves the old waveform drawings and overwrites new waveforms on top of it It is useful for observing waveform variation Procedure 1 Press the Display key Display 2 Press Accumulate on the Accumulate waveform accumulation On 3 To clear the accumulation and start it over refresh Refresh press Refresh 76 GW INSTEK CONFIGURATION Example Accumulation off Accumulation on v gt 0 0005 Trisu _Display vor 8 0005 Trist f _ Display H Type H Type Dots Dots f A Accum
52. illoscope e Avoid discharges of static electricity on or near the oscilloscope e Use only mating connectors not bare wires for the terminals e Do not block the cooling fan vent e Do not perform measurements at power sources and building installation sites Note below e The oscilloscope should only be disassembled by a qualified technician Measurement categories EN 61010 1 2001 specifies the measurement categories and their requirements as follows The GDS 1000 U falls under category II e Measurement category IV is for measurement performed at the source of a low voltage installation e Measurement category Ill is for measurement performed in a building installation e Measurement category II is for measurement performed on circuits directly connected to a low voltage installation e Measurement category is for measurements performed on circuits not directly connected to Mains GW INSTEK GDS 1000 U Series User Manual Power Supply e AC Input voltage 100 240V AC 47 63Hz i e The power supply voltage should not fluctuate WARNING more than 10 e Connect the protective grounding conductor of the AC power cord to an earth ground Fuse e Fuse type T1A 250V AN e To ensure fire protection replace the fuse only WARNING with the specified type and rating e Disconnect the power cord before replacing the fuse e Make sure the cause of fuse blowout is fixed before replacing the fuse
53. ions have been met The tests continue even when the NoGo conditions have been met Background The NoGo template sets the upper and lower amplitude boundary Two methods are available Min Max and Auto Min Max Selects the upper boundary Max and lower boundary Min as separate waveforms from the internal memory The upper boundary is saved to Ref A the lower boundary is saved to Ref B Advantage The template shape and distance allowance between the source signal are fully GW INSTEK GDS 1000 U Series User Manual customizable Disadvantage The waveforms templates have to be stored internally prior to this selection Auto Creates the upper and lower boundary template from the source signal not from an internally stored waveform Advantage No need to store the waveforms prior to this selection Disadvantage The template shape is proportional to the source signal The distance allowance between the source signal and the upper and lower template is the same Max Mix 1 The template is based on the source signal Ensure the source signal appears on the display 2 Press the Utility key Utility 3 Press the More key More gt 4 Press the Go NoGo Menu Go NoGo key M g enu 5 Press the Template Edit key Template gt Edit 6 Press Template repeatedly Template gt to select the upper Max or Max lower Min boundaries GW INSTEK MEASUREMENT 7 Press Source an
54. isition 73 Average voltage measure 53 Bandwidth limitation 83 Blackman window 0s0 58 Calibration MENU ATCO rssececicisccessvssevestececcesesss 40 Calibration vertical resolution REEE TAE EIE 116 Caution symDbol cceeeeeee 8 Channels siscsstscivessesssssssesoivssstessass 45 Lre e DOPA ENE SEEE 119 MENU WEC 25 Cleaning the instrument 10 configure remote control 93 Coupling mode ceeeeee 82 MENU TEE s O A 25 cursor horizontal operation 0 06 55 Cursor menu tree SPeCHICATION ecceeseereseeseeseenees 125 Cycle time measure 06 53 Data logging menu TEE s sccssssesnnkesesetcgsesernntsouasts 42 overview 68 run 71 setup 69 SOURCE E E EE 69 DC coupling sssssssssssssrsssresresreesee 82 Declaration of conformity 129 Default setup eee 111 contents menu tree Display senene sono nnna contrast setting diagram amp BVI SCttING eeccesseseeseeeeeeeesees 77 MMCTULCE Sarian 27 specifications 125 Display image PAG PEE T 120 file format seese 96 SAV E E E S E 106 SAVE MENU TEe nsnsi 34 Disposal instructions 11 Dot waveform uu 76 Duty cycle measure 0006 53 Edge trigger isisisi 87 MENU Tee eeeeeeceeseeeseeeeseseeseseneees 37 EN61010 Measurement Category 9 pollution degree 0 0 EnvirOnMentt ccccceccseseeeeeees safety i
55. l USB connection PC end Type A host GDS 1000 U end Type B slave Speed 1 1 2 0 full speed Procedure 1 Connect the USB cable to the USB slave port on the GDS 1000 U 2 When the PC asks for the USB driver select dso_cdc_1000 inf which is downloadable from the GW website www gwinstek com tw GDS 1000 U product corner 3 On the PC activate a terminal application such as MTTTY Multi Threaded TTY To check the COM port No see the Device Manager in the PC For WindowsXP select Control panel gt System Hardware tab 4 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 1052 U 000000001 V1 00 5 Configuring the command interface is completed Refer to the programming manual for the remote commands and other details 93 GW INSTEK GDS 1000 U Series User Manual System Settings The system settings show the oscilloscope s system information and allow changing the language Viewing the system information Procedure 1 Press the Utility key Utility 2 Press System Info The upper System half of the display shows the Info following information e Manufacturer e Model e Serial number e Firmware version e Web address 3 Press any other key to go back to the waveform More display mode Selecting the language Parameter
56. ling DC 7OMHz AC coupling 10Hz 7OMHz Bandwidth Limit 20MHz 3dB Trigger Sensitivity O 5div or 5mV DC 25MHz 1 5div or 15mV 25MHz 70MHz External Trigger 50mV DC 25MHz Sensitivity 100mV 25MHz 70MHz Rise Time lt 5ns approx GDS 1102 U Bandwidth 3dB DC coupling DC 100MHz AC coupling 10Hz 100MHz Bandwidth Limit 20MHz 3dB Trigger Sensitivity 0 5div or 5mV DC 25MHz 1 5div or 15mV 25MHz 100MHz External Trigger 50mV DC 25MHz Sensitivity 100mV 25MHz 100MHz Rise Time lt 3 5ns approx 123 GW INSTEK GDS 1000 U Series User Manual Common specifications Vertical Sensitivity 2mV div 10V Div 1 2 5 increments Accuracy 3 x Readout 0 1div 1mV Bandwidth See model specific specifications Rise Time See model specific specifications Input Coupling AC DC Ground Input Impedance 1MQ 2 15pF Polarity Normal Invert Maximum Input 300V DC AC peak CAT II Math Operation FFT Offset Range 2mV div 50mV div 0 4V 100mV div 500mV div 4V 1V div 5V div 40V 10V div 300V Trigger Sources CH1 CH2 Line EXT Modes Auto Normal Single TV Edge Pulse Coupling AC DC LF rej HF rej Noise rej Sensitivity See model specific specifications External trigger Range DC 15V AC 2V Sensitivity See model specific specifications Input Impedance Maximum Input IMQ 2 15pF 300V DC AC peak CATII Horizontal Range Ins div 50s div 1 2 5 5 increment
57. mode Cursor e source channel cursor on off e cursor location Display e dots vectors e accumulation e grid type on off Measure e item Utility e hardcopy type ink saver on off e language e Go Nogo e Data Logging settings settings Horizontal e display mode scale e position Trigger e trigger type e source channel e trigger mode e video standard Channel vertical Math video polarity pulse timing vertical scale e coupling mode bandwidth limit on off operation type vertical position FFT window video line slope coupling vertical position invert on off probe attenuation source channel unit div GW INSTEK SAVE RECALL Using the USB file utilities Background When a USB flash drive is inserted into the oscilloscope file utilities file deletion folder creation and file folder renaming are available from the front panel Procedure 1 Insert a USB flash drive into the front panel USB port E 2 Press the Save Recall key Save Recall Select any save or recall function For example USB Example Destination in the Save image function Save Image Destination USB 3 Press File Utilities The File display shows the USB flash Utilities drive contents 4 Use the Variable knob to VARIABLE move the cursor Press Select to go into the folder or go w back to the previous directory level Select USB flash driv
58. n Datavagn Menu More To Go NoGo gt menu To Data gt Logging menu gt To Utility 3 menu Go to the Go NoGo menu Go NoGo Set the NoGo conditions to inside outside limits No Go When Go to the Data Logging Menu Data Logging Go to the next Utility menu More 39 GW INSTEK GDS 1000 U Series User Manual Utility key 3 10 Utility 3 Calibration Enter self calibration Self CAL Men gt gt To Self CAL menu Self CAL Go to the first Utility menu More gt To Utility 1 menu More Utility key 4 10 Hardcopy Save All Hardcopy Select Hardcopy function Function Savelmage ai Function Ink Saver Turn on off Ink saver Ink Saver Previous Menu Go to previous menu Previous Menu Utility key 5 10 Hardcopy Save Image Hardcopy Save Image Select Hardcopy function ean ere Function a Turn on off Inksaver Ink Saver Go to previous menu nea Previous Menu GW INSTEK QUICK REFERENCE Utility key 6 10 Probe compensation Probe compensation Wave Type JL Frequency 1K Duty Cycle 50 Default 1kHz Previous gt Menu Utility key 7 10 Go NoGo Tu mU 1k 100k Tir only 5 95 Select probe compensation signal Wave Type Set frequency for square wave Frequency VAR Oo Set duty
59. n the rear F panel CAL out terminal and gt y the Channel1 input 6 Press F5 The calibration automatically starts 116 GW INSTEK MAINTENANCE 7 The Channel calibration will complete in less than 5 minutes 8 When finished connect the calibration signal to the Channel 2 input and repeat the procedure Chl calibration 1 3 000008 00000 Done 9 When the calibration is complete the display will go back to the previous state Probe Compensation Procedure 1 Connect the probe between the Channell input and the probe compensation output 2Vp p 1kHz square wave on the front panel Set the probe voltage attenuation to x10 2 Press the Utility key 3 Press ProbeComp Utility ProbeComp Menu 117 GW INSTEK GDS 1000 U Series User Manual 4 Press Wavetype repeatedly to wave Type select the standard square nr wave 5 Press the Autoset key The compensation signal will appear in the display 6 Press the Display key then Display Type to select the vector Type Vectors waveform gt 7 Turn the adjustment point on the probe until the signal edge becomes sharp f totmtntetetntmtntoth 4 tetee Over Normal Under Compensation Compensation 118 GW INSTEK FAQ Fag The input signal does not appear in the display
60. ncrement The timebase indicator at the bottom of the display updates the current horizontal scale 1 5U iddus 20 pv Seeeeeeeeeed 78 GW INSTEK 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 lt 100ms div Trigger All modes available Roll mode Updates and moves the waveform gradually from the right side of the display to the left The Roll mode is automatically selected when the horizontal scale timebase When in the Roll mode an indicator appears at the bottom of the display Main mode Roll mode I 14Gus 25Gms row Timebase 250ms div lt 5kS s Trigger Auto mode only MENU Selecting the Roll 1 Press the Horizontal menu mode manually key OD 2 Press Roll The horizontal scale automatically becomes Roll 50ms div and the waveform starts scrolling from the right side of the display If the oscilloscope is already in the Roll mode there will be no change GW INSTEK GDS 1000 U Series User Manual Zooming the waveform horizontally Procedure range 1 Press the Horizontal Menu key 2 Press Window Window 3 Use the horizontal position 4 O gt knob to move the zoom range si
61. nnected to the terminal marked with the letter L or P or coloured Brown or Red If in doubt consult the instructions provided with the equipment or contact the supplier This cable appliance should be protected by a suitably rated and approved HBC mains fuse refer to the rating information on the equipment and or user instructions for details As a guide a cable of 0 75mm should be protected by a 3A or 5A fuse Larger conductors would normally require 13A types depending on the connection method used Any exposed wiring from a cable plug or connection that is engaged in a live socket is extremely hazardous If a cable or plug is deemed hazardous turn off the mains power and remove the cable any fuses and fuse assemblies All hazardous wiring must be immediately destroyed and replaced in accordance to the above standard GW INSTEK GETTING STARTED G ETTING STARTED The Getting started chapter introduces the oscilloscope s main features appearance and set up procedure Main Features Model name Frequency bandwidth Input channels GDS 1052 U DC 50MHz 3dB 2 GDS 1072 U DC 7OMHz 3dB 2 GDS 1102 U DC 100MHz 3dB 2 Performance e 250MSa S real time sampling rate e 25GS s equivalent time sampling rate e Up to 10ns peak detection e 2mV 10V vertical scale Features e 5 7 inch color TFT display e Saving and recalling setups and waveforms e 19 automatic measurements e Multi language menu 12 languages
62. nstructions equivalent time sampling 75 External trigger input terminal GW INSTEK INDEX Ink saver in hardcopy smencseissenenen 102 in Save alluere 108 MENU Hee oe eeeeeseeesseesseesseesseeseeesseens 29 Input frequency indicator 20 OVELVICW oo eeceeseesseeseeseeeseesteseeseeeses 58 Invert waveform seese 83 Bile formats sisnassesideea ai 96 Language selection 006 94 Firmware version 94 List of features 13 Flattop window cceeeee 58 Low voltage measure 53 Force tH SB EF sesioa 92 Math frequency FAG savcisncccnccopsnsnsyentienesontedacroncetieeonts 119 Cursor tracking eee 55 MENU LCC oo eects teeeeeees 28 Frequency measute 53 Measurement cccccccesseceeseeee 45 Frequency rejection 00 87 Model caomparison 0 13 Front panel diagram 15 Multiplication 59 Fuse replacement 122 Negative peak measure 52 safety instruction essen 10 Noise rejection cece 87 General purpose signal 50 Normal acquisition 72 Go NoGo Normal trigger ccccccceseees 86 conditions sssssssssesseesseesseesseesseessee NISC orn enea n 86 MENU MWEE a seeesesssssssnnsennnnssennsosensrenes Operating environment 125 OVEN Overshoot voltage measure 53 SE ee PATa eyen R 86 ce ee Peak detect acquisition 73 EEEE orci eac anes 1a Peak to peak measure
63. oclear the waveform from Ref A Off the display press RefA B again Recalling panel settings Procedure 1 For recalling to USB Insert ee the USB flash drive into the front panel USB port 2 Press the Save Recall key Save Recall GW INSTEK SAVE RECALL 3 Press Recall Setup Recall gt Setup 4 Press Source repeatedly to Source select the file source Memory internal or external memory Use the Variable VARIABLE knob to change the memory Memory Internal memory S1 S15 USB USB flash drive DSXXXX SET The setup file s must be placed in the root directory to be recognized 5 Press Recall to confirm recalling When completed Recall a message appears at the bottom of the display The file will not be recalled if the Note power is turned off or the USB flash drive is removed before completion File utilities To edit the USB drive contents File create delete rename files Utilities and folders press File Utilities For details see page 99 Recalling a waveform Procedure 1 For recalling to USB Insert ea the USB flash drive into the front panel USB port eee 2 Press the Save Recall key Save Recall 113 GW INSTEK GDS 1000 U Series User Manual 3 Press Recall Waveform The Recall display shows the available source and destination options 4 Press Source repeatedly to Source select the file source Memory inte
64. only gt To File Utilities Save Recall key 4 9 Select other menu Recall Waveform Select waveform source Source gt VAR O Select waveform destination Destination VAR O Recall waveform Recall Go to USB file utilities File Utilities Display Refs Display D Refs Ref A Off Ref B Off d gt On Off On Off Select other menu Display Refs Turn ref waveform A on off Ref AC Turn ref waveform B on off Ref Be GW INSTEK QUICK REFERENCE Save Recall key 5 9 Save Setup Select other menu Save gt Setup Save Setup Select destination Destination i Memory Memory USB Destination gt VAR O Save Save setup File gt USB only Save Utilities To File Utilities Go to USB file utilities File Utilities Save Recall key 6 9 Save Waveform Select other menu Save ecc Waveform Save Waveform CH1 2 Math Source Ref A B Select source Destination Memory W1 W15 Memory USB Source VAR O Refs Ref A Ref B F Save Select destination File gt USB only Destination gt VAR O Utilities To File Utilities Save waveform Save Go to USB file utilities File Utilities GW INSTEK GDS 1000 U Series User Manual Save Recall key 7 9 Save Image Select other menu Save Ri c gt Image Save Image Ink Saver x Off Turn on off ink saver Destination USB Ink Saver Save Save image File 5 USB
65. pe Type e a Edge Edge Source P CHi Select trigger source Source ae AD gt To Slope Couping Go to slope coupling menu page 38 wor Slope Coupling Select trigger mode Mode Trigger key 4 5 Pulse Trigger Select pulse trigger type Type gt lt ____ gt Pulse Type Source CH1 Select trigger source When lt gt lt 20 0ns Source Lie gt To Slope Coupling Select pulse trigger condition and idth Mode pulse widt Auto When var O Go to slope coupling menu page 38 Slope Coupling Select trigger mode Mode GW INSTEK GDS 1000 U Series User Manual Trigger key 5 5 Coupling Slope Select trigger slope type Slope I fe Slope Coupling AC oe Select trigger coupling mode Rejection a Coupling Noise Rej Off Previous Menu On Off Select frequency rejection Rejection Turn noise rejection on off Noise Rej Go back to previous menu Previous Menu Utility key 1 10 Utility 1 iy Go to hardcopy menu Hardcopy Hardcopy To Hardcopy g Menu gt menu Go to probe compensation menu ProbeComp To Probe Menu gt Comp me ProbeComp Language English Select language English Chinese T etc System Language Info M Show system information More gt Utility 2 menu System Info Go to the next Utility menu More GW INSTEK QUICK REFERENCE Utility 2 10 Utility 2 Utility Go NoGo Menu Whe
66. rms to a user specified maximum and minimum boundary template The testing can be set to stop or continue each time the template has or has not been violated by the input waveform Settings Item Default Details NoGo criteria When inside Inside Page 62 or outside the boundary Source Channel1 Page 62 Test continue or stop when Stop Page 63 NoGo occurs Boundary template Auto 0 4 Page 63 selects the minimum and maximum boundaries template from a single waveform Run Tests Page 67 61 GW INSTEK GDS 1000 U Series User Manual Edit NoGo When Procedure 1 Press the Utility key Utility 2 Press the More key More 3 Press No Go When repeatedly to select the NoGo conditions NoGo when the waveform is inside the boundary template NoGo when the waveform is outside of the boundary template Edit Source Procedure 1 Press the Utility key Utility 2 Press the More key More HE 3 Press the Go NoGo Menu Go NoGo gt i key Menu 4 Press Source repeatedly to Source select the source channel CH1 CH1 or CH2 62 GW INSTEK MEASUREMENT Edit NoGo Violation Conditions Procedure 1 Press the Utility key 2 Press the More key More 3 Press the Go NoGo Menu Go NoGo Menu key 4 Press Violating repeatedly Violating to select the NoGo conditions Stop Continue Edit Template boundary Stop Stops the test when the NoGo condit
67. rnal memory or USB ae Use the Variable knob to ia change the memory location O W1 W15 DSXXXX CSV lt Memory Internal memory W1 W15 USB USB flash drive DSXXXX CSV The waveform file s must be placed in the root directory to be loaded 5 Press Destination Use the Variable knob to select the _ Destination memory location VARIABLE GN N q zZ RefA B Internally stored reference waveforms A B 6 Press Recall to confirm recalling When completed Recall a message appears at the bottom of the display The file will not be recalled if the Note power is turned off or the USB flash drive is removed before completion 114 GW INSTEK SAVE RECALL File utilities To edit the USB drive contents File create delete rename files Utilities and folders press File Utilities For details see page 99 115 GW INSTEK GDS 1000 U Series User Manual M 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 Procedure 1 Press the Utility key ay 2 Press the More key twice More x2 3 Press Self Cal Menu Self CAL gt Menu 4 Press Vertical The message Set CAL to CH1 then press Vertical F5 appears at the bottom of the display 5 Connect the calibration 1 ll signal betwee
68. ss the Save Recall key S2 Fecvl Save Reca twice to access the Save menu 3 Press Save Waveform Save Waveform 4 Press Source Use the Variable knob to select the Source source signal VARIABLE N g CH1 CH2 Channel 1 2 signal Math Math operation result page 58 RefA B Internally stored reference waveforms A B 5 Press Destination repeatedly Destination to select the file destination Memory Use the Variable knob to select the memory location eee is S A 105 GW INSTEK GDS 1000 U Series User Manual Memory Internal memory W1 W15 USB Save to the USB flash drive with a 4k waveform memory length Ref Internal reference waveform A B 6 Press Save to confirm saving When completed a Save message appears at the bottom of the display The file will not be saved if the Note AN power is turned off or the USB flash drive is removed from the USB port File utilities To edit the USB drive contents File create delete rename files Utilities and folders press File Utilities For details see page 99 Saving the display image Saving the display image can be used as a screen Background capture or it can be used as a reference waveform Procedure 1 Insert the USB flash drive f oe into the front panel USB port Image files can only 4 be saved to USB Recall Recall 2 Press the Save Recall key 22sec Save Reca t
69. stivensssezess 128 EC Declaration of Conformity scsisxiscsusissanciananeiaesesserasdiats 129 GW INSTEK TABLE OF CONTENTS GW INSTEK GDS 1000 U Series User Manual SAFETY 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 A Warning Identifies conditions or practices that WARNING could result in injury or loss of life Caution Identifies conditions or practices that CAUTION could result in damage to the oscilloscope or to other objects or property DANGER High Voltage Attention Refer to the Manual Protective Conductor Terminal Earth Ground Terminal oOPP oo GW INSTEK SAFETY INSTRUCTIONS et 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 e Make sure the BNC input voltage does not Guideline exceed 300V peak AN e Never connect a hazardous live voltage to the CAUTION ground side of the BNC connectors It might lead to fire and electric shock e Do not place heavy objects on the oscilloscope e Avoid severe impact or rough handling that may damage the osc
70. t Off indicator BW Limit Pletal BW Limit Off o 4 off Voltage Voltage 1x 1 2U 2 5us OCH EDGE FDC t orto Sdus ON EDGE FDC 2m2 0 lt 20Hz wert O5 82422kHz Channel icon De activatinga 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 Selecting the horizontal scale Positioning the waveform horizontally Selecting the vertical scale Positioning the waveform vertically Selecting the trigger source channel Activating the channels Procedure 1 Connect the input signal to the oscilloscope and press the Autoset key The waveform appears in the center of the display GW INSTEK MEASUREMENT Before Autoset After Autoset gt 8 000s Auto SL CH1 gt 8 0805 Auto fL _Autoset ki Coupling Hi Se ceed Invert edo Ne ANAA f S BW Limit off gt bese fae ae Probe Ei x1 eocecee 7 EEL Tsim er AD e aS T F bai i Undo Autoset finished Autoret H 2U 2 5us cHi EDGE FDC O 5U 100us Ochi EDGE Ayeeeece 2U 03 05083kHz 8 500mU 03 05004kHz Undo option Undoing the To undo the Autoset press iad ndo Autoset Undo available for a few seconds Adjusting the If the waveform is still aey trigger level unstable try adj
71. t lt 600Vpk Derating with frequency Voltage Position x 1 Attenuation Ratio 1 1 Bandwidth DC 6MHz Input Resistance Input Capacitance Maximum Input Voltage 1MQ when used with 1MQ input 85 115pF approx lt 200Vpk Derating with frequency Operating Cond Temperature Relative Humidity 10 C 50 C lt 85 35 C Safety Standard EN 61010 031 CAT II 127 GW INSTEK GDS 1000 U Series User Manual Dimensions 341 5 159 0 115 1 E a E ol nae il J 449 0 128 GW INSTEK APPENDIX EC Declaration of Conformity We GOOD WILL INSTRUMENT CO LTD No 7 1 Jhongsing Rd Tucheng Dist New Taipei City 236 Taiwan GOOD WILL INSTRUMENT SUZHOU CO LTD No 69 Lushan Road Suzhou New District Jiangsu China declares that the below mentioned product GDS 1052 U GDS 1072 U GDS 1102 U Are herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Law of Member States relating to Electromagnetic Compatibility 2004 108 EC and Low Voltage Equipment Directive 2006 95 EC For the evaluation regarding the Electromagnetic Compatibility and Low Voltage Equipment Dire
72. t of the display changes accordingly 49 GW INSTEK GDS 1000 U Series User Manual Using the probe compensation signal Background This section introduces how to use a the probe compensation signal for general usage in case the DUT signal is not available or to get a second signal for comparison For probe compensation details see page 117 AN Note The frequency accuracy and duty factor are not guaranteed Therefore the signal should not be used for reference purposes Waveform type r Square waveform used for probe compensation 1k 100kHz 5 95 Tur Demonstration signal for showing the effects of peak detection See page 72 for peak detection mode details View the probe 1 Connect the probe between the compensation compensation signal output and Channel input waveform 2 Press the Utility key Utility 3 Press ProbeComp ProbeComp Menu 50 GW INSTEK MEASUREMENT 4 Press Wave type repeatedly Wave Type to select the wave type Tir 5 For JU only To change Fewer the frequency press T Frequency and use the Variable knob VARIABLE IAN Z SS Range 1kHz 100kHz 6 For SF only To change the duty cycle press Duty 50 Cycle and use the Variable knob VARIABLE I N g r Range 5 95 Probe For probe compensation details see page 117 compensation 51 GW INSTEK GDS 1000 U S
73. t os devas aiseeresaesstanionlanseteets 72 Selecting the acquisition mode ss sssssssssessssssessesrseressress 72 Real time vs Equivalent time sampling mode 75 Display orenen iori ia EEE E ORRE E Selecting vector or dot drawing ss ssssssssrsssissiesresrsesresress Accumulating the waveform ceeessseseesesceeseseseseseeeeeees Adjusting the display contrast Selecting the display grid cece eset eeteeneees Horizontal VEU evcacisstsnt naveiestins tanskiccedbintiacdusidernsbiatesanehy Moving the waveform position horizontally eee 78 Selecting the horizontal scale Selecting the waveform update mode ceeeeeeeeeteee 79 Zooming the waveform horizontally 80 Viewing waveforms in the X Y mode uu cesses teeta 31 Vertical View Channel ccricisccmernewohinabiapendesenestlanhtucnebeetcs 82 Moving the waveform position vertically eee 82 Selecting the vertical scale ccccceeseeseseeee ee eeeeeeeeeneees Selecting the coupling mode Inverting the waveform vertically ssssssssssssssssssssesssessseesss 83 Limiting the waveform bandwidth ccna 83 eeoa I E E E E Trigger TY POs ciassssccztsstiecsns sis cessssateshass thucecssvsceatsvesceeesstecceazsivese Trigger PArAMEtED ccsccccseseeseseseeeteeseteeseseescsetsesetecseeeeeees Configuring the edge trigger ccsscsseeseeseseseeseseeeeseeneees Configuring the video trigger Configuring the pulse width trigger eens 90 Manually triggering the signal occ ees ee
74. t panel e Current front panel e Reference waveform A B GW INSTEK SAVE RECALL Recalling the default panel settings Procedure 1 Press the Save Recall key S 2 Fect 2 Press Default Setup The Default factory installed setting will s etup be recalled Setting contents The following is the default panel setting contents Acquisition Mode Normal Channel Coupling DC Invert Off Probe attenuation x1 BW limit Off Cursor Source CH1 Horizontal None Vertical None Display Type Vectors Accumulate Off Graticule Horizontal Scale 2 5us Div Mode Main Timebase Math Type Add Channel CH1 CH2 Position 0 00 Div Unit Div 2V Measure Item Vpp Vavg Frequency Duty cycle Rise Time Trigger Type Edge Source Channel1 Mode Auto Slope _ Coupling DC Rejection Off Noise Rejection Off Utility Savelmage InkSaver Off 111 GW INSTEK GDS 1000 U Series User Manual Recalling a reference waveform to the display Procedure The reference waveform must be stored in advance See page 105 for details 1 Press the Save Recall key 2 Press Display Refs The reference waveform display menu appears 3 Select the reference waveform Ref A or Ref B and press it The waveform appears on the display and the period and amplitude of the waveform appears in the menu Save Recall Display gt Refs Ref A Off Ref A On 1V 2 5ms 4 T
75. tion indicator moves along with the waveform and the distance from the center point is displayed as the offset in the upper side of the display Horizontal offset v v 7418 Bus io Jau Hor MENU Main it indicator Window a Window Zoom Roll XY 0 500mY 250us OCHI EDGE FDC 2 500nU O 1 00763kHz GW INSTEK MEASUREMENT Selecting the To select the timebase scale turn MEO Y horizontal scale the TIME DIV knob left slow or right fast Range Ins Div 10s Div 1 2 5 5 increment ver 9 0005 Teiee fu Hor MENU ver eoste Teiss f Hor MENU Main Main Ag Window i Window fon gt Vom Roll Roll Horizontal scale 50us div xy Horizontal scale 250us div xY Ona sous Ol EDGE FOC m fo2sous OCHI EDGE FDC lam2u eeeee 02 89887kHz 22 ccecce 02 89862kHz Changing the vertical position and scale For more detailed configuration see page 82 Set vertical To move the waveform upor 7 D A position down turn the vertical position S V 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 Select vertical To change the vertical scale ORN scale turn the VOLTS DIV knob left down or right up Range 2mV Div 10V Div 1 2 5 increments The vertical scale indicator for each channel on the bottom lef
76. to Average and press its functionality key Normal gt VAR O Press the functionality key for Normal and then use the Variable knob 24 GW INSTEK QUICK REFERENCE Acquire Select acquisition mode Normal Peak Detect Normal Select average number Average 2 4 8 16 32 64 128 256 Average bie Turn Delay on off Detect Sample Rate 500MS s CH1 CH2 key CH1 Turn channel on off CH 1 28 Coupling NF Coupling Invert On Off pling Off Invert waveform On Off Off _ gt o Invert Probe ee a x1 x10 x100 Turn bandwidth limit on off BW Limit Select coupling mode Select probe attenuation Probe 25 GW INSTEK GDS 1000 U Series User Manual Cursor key 1 2 Cursor Source CH1 X1 123 4us 212 0mV CH1 2 MATH Cursor key 2 2 Turn cursor on off Cursor Move X1 cursor X1 VAR Move X2 cursor X2 VAR Move both X1 and X2 cursor X1X2 gt VAR OD Switch to Y cursor XY Cursor Source CH1 Y1 123 4mV Y2 12 9mV Y1Y2 10 5mV XY CH1 2 MATH Turn cursor on off Cursor Move Y1 cursor Y1 VARO Move Y2 cursor Y2 VARO Move both Y1 and Y2 cursor Y1Y2 VAR Switch to X cursor XY GW INSTEK QUICK REFERENCE
77. ulate Accumulate j Off On Mad i 7 Refresh i Refresh j H ee Sa j Y Contrast Contrast Gs e Full gt Full gt Om 500 2 Sus Ochi EDGE FOC S0BnU 2 Sus OCHI EDGE FOC 250 093 6100kHz rms 0 158 048kHz Adjusting the display contrast Display Procedure 1 Press the Display key 2 Press Contrast Turn the Variable knob left to 4 lower the contrast dark i display or right to raise the Ne contrast bright display M Selecting the display grid Procedure 1 Press the Display key Display 2 Press the grid icon Te repeatedly to select the grid Full g z Parameters Shows the full grid HH Shows the outer frame and X Y axis Shows only the outer frame 77 GW INSTEK GDS 1000 U Series User Manual Horizontal View The Horizontal view section describes how to configure the horizontal scale position waveform update mode window zoom and X Y mode Moving the waveform position horizontally moves the waveform left or right The position indicator at the top of the display shows the center and current position Procedure The horizontal position knob r O n Y Center position Moving right v v 0 000s v v 92 0 us Y Y hd aaa il ia Selecting the horizontal scale Select horizontal To select the timebase scale MEO scale turn the TIME DIV knob left slow or right fast Range Ins Div 50s Div 1 2 5 5 10 i
78. usting the trigger level up or down by using the Trigger Level knob Limitation Autoset does not work in the following situation e Input signal frequency less than 20Hz e Input signal amplitude less than 30mV Running and stopping the trigger Background In the trigger Run mode the oscilloscope constantly searches for a trigger condition and updates the signal onto the display when the condition is met In the trigger Stop mode the oscilloscope stops triggering and thus the last acquired waveforms stay in the display The trigger icon at the top of the display changes into Stop mode Run Stop Pressing the Trigger Run Stop key switches between the Run and Stop mode 47 GW INSTEK GDS 1000 U Series User Manual Trigger Run mode Trigger Stop mode v 8 0005 PRO sa _Trigger v27 8 0005 iStop et sa _Trigger _ auioor DP Type Trig icon Eae ee g ae Source CH1 a Slope Slope Coupling Coupling Mode Mode Auto Auto E 2Seus cHi EDGE FOC Bm Sean 250us chL EDGE FDC 2 SOOmy O 1 00765kHz 2 m SOU O 1 00764kHz Waveform Waveforms can be moved or scaled in both the operation Run and Stop mode For details see page 78 Horizontal position scale and page 82 Vertical position scale Changing the horizontal position and scale For more detailed configurations see page 78 Setting the The horizontal position knob T x horizontal moves the waveform left or right A position The posi
79. wice to access the Save menu 3 Press Save Image Save gt Image 106 GW INSTEK SAVE RECALL 4 Press Ink Saver repeatedly to Ink Saver invert the background color Off on or not off Note Destination is set as USB pestination This cannot be changed USB 5 Press Save to confirm saving When completed a Save message appears at the bottom of the display The file will not be saved if the Note power is turned off or the USB flash drive is removed before completion File utilities To edit the USB drive contents File create delete rename files Utilities and folders press File Utilities For details see page 99 107 GW INSTEK GDS 1000 U Series User Manual Saving all panel settings display image waveform drive Insert the USB flash SS drive into the front panel USB port Procedure 1 For saving to USB flash n 5S Recall Recall 2 Press the Save Recall key S22 Fec Save Reca twice to access the Save menu 3 Press Save All The following Save information will be saved All Setup file Two types of setups are saved Axxxx set the current panel setting and the last internally saved settings one of S1 S15 Display image The current display image in Axxxx bmp bitmap format Waveform data Two types of waveform data Axxxx csv are saved the currently active channel data and the last internally saved data one of
80. y eco he 5U shows a down arrow i49 F 200my Original Inverted v v 0 000s Trigu P CH2 v 0 000s Trige PM CH2 Coupling H Coupling Iwert Invert off fe a BW Limit a BW Limit off off Voltage Voltage 10x 10x ily S00us Ochi EDGE FDC imiU S08us Och EDGE FDC O22 0447 327Hz 40 2U O 447 320Hz 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 83 GW INSTEK GDS 1000 U Series User Manual 2 Press BW Limit to turn on or BW Limit off the limitation When Off turned on the BW indicator appears next tothe Channel are 209mU5 indicator in the display Sassa Example BW Limit Off BW Limit On Selecting the 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 not the attenuated level CH 1 C 2 Press Probe repeatedly to Probe select the attenuation level Procedure 1 Press the Channel key x1 3 The voltage scale in the channel indicator changes accordingly There is no change in the waveform shape

Manual for 2 Channel 100 Mhz Digital Storage

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