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Digital Oscilloscope & Multimeter

1. Field CH2 Video Normal CH1 Line TYPE Polarity Source Sync Inverted Select run or stop mode RUN STOP key Select edge or video trigger TRIG MODE gt F1 TYPE Select trigger slope TRIG MODE F1 edge F2 Slope Select trigger source TRIG MODE F1 F3 Source Select trigger mode TRIG MODE F1 edge F4 Mode Select trigger coupling TRIG MODE F 1 edge F5 Coupling Select video polarity TRIG MODE F 1 video gt F2 Polarity Select video line sync TRIG MODE F 1 video gt F4 Sync CH1 CH2 Setup 1000 X CH1 SETUP 100 X OFF 10 X ON AC Coupling CH2 SETUP ON 1 X OFF Channel Probe Inverted Select AC or DC coupling CH1 2 SETUP F1 Coupling 56 GW INSTEK Using the Oscilloscope Turn CH1 on or off CH1 2 SETUP F2 Channel Select probe scaling CH1 2 SETUP F3 Probe Turn inversion on or off CH1 2 SETUP F4 Inverted Measurement Setup 1 2 MEAS SETI MEAS SET2 CH2 CH2 CH2 CH2 CH1 CH1 CH1 CH1 PicPk_ Cyc RMS Measure CH1 CH2 frequency MEAS SET1 2 F1 Freq Measure CH1 CH2 period MEAS SET1 2 F2 Period Measure CH1 CH2 mean value MEAS SET1 2 gt F3 Mean Measure CH1 CH2 peak to peak time MEAS SET1 2 F4 Pk Pk Measure CH1 CH2 cycle MEAS SET1 2 gt F5 Cyc RMS Wave Math CH1 CH2 CH2 CH1 JCH1 CH2 CH1 CH2 CH1 CH2 Subtract CH2 from CH1 WAVE MATH gt F1 CH1 CH2 Subtract CH1 from CH2 WAVE MATH gt F2 CH2 CH1 Add CH2 to CH1
2. 04 95 extension module capacitance multimeter 93 current multimeter eee 88 PACK ASS apaa 10 factory SCORES acasan 53 FAQ wisssssinssstacsusvaustennceveggtstanestvstonntisenets 95 ERR mode multimeter 95 map MIN CATON sesan 95 HO WaVe enan 96 POWeErng UP wevcosesseescesiveasosinconewnens 95 slow update multimeter 96 slow update oscilloscope 96 unstable waveform 95 field trigger vVideOisssiiisiisaia 33 freezing measurement capacitance multimeter 94 continuity multimeter 0 92 current multimeter ce 88 diode multimeter n se 91 impedance multimeter 90 voltage multimeter 86 frequency automatic measurement 41 102 GDS 122 User Manual front panel overview 12 grid color PC software 69 orid VC SOMW Are accan 69 SPOUT SY MD Ol saiatonconseverreecnesnaaccunaceoss 6 Help PC SOMW ale nn 82 FE WG E eee ee 31 horizontal adjusting position 20 24 adjusting scale 19 25 scale vs trigger status oF SO OU S si 58 SPECICATION S is sncssiceoravsaomretisicedarass 97 SV SED SEATS osade EN 37 impedance multimetet 89 specifications s src 99 installing PC software 62 inverting channel 23 long WACO anuaro a 35 PE SOR AT suorissa 70 SORE CUI E 58 DO IG E ge areaueome ect ies 31 line data PC software ccce cece 69 line trigger video sesser 33 TSE Ol teahife S
3. e Period measures the waveform period in ms e Freq measures the waveform frequency in kHz e PK PK measures the peak to peak voltage in V GW INSTEK Using the Oscilloscope Using the cursor measurements Overview This section introduces how to use cursor measurements in the software screen e Activating the cursors e Viewing the cursor measurement results e Moving the cursors Screen overview Vertical cursor za ra anair ma re Fle Yew Fomei icemevuhication Longue bip saa MAk ma Lurie an 4 20 vii 34 Y ve 4441 Y Measurement result da 1 200 0 vi 200 uS Horizontal cursor ws Cursor type G Treas Some Position m5 i 1 213 KHz KP SSO Dorris Activating the Before activating the cursors make sure that the cursors correct waveform is selected highlighted in the lower left corner of the screen example CH1 5 00 ii chz 250us 2 00 W ii OA 5 ns 2 00m i1 Select the cursors from the list in the right side of the screen e None the cursor is turned off Types e Horizontal the horizontal cursors appear Types e Vertical the vertical cursors types ME appear 75 GW INSTEK GDS 122 User Manual Viewing the cursor measurement results Moving the cursors 76 e All both the horizontal and Types p vertical cursors appear The cursor measurement results are updated in the right side of
4. Shortcut for Alternatively you can select the Uninstall uninstall DC_Wave from the program startup menu to uninstall the software fan Ds Wave fed Ds Wave exe Uninstall DS Wave M USBDRV Install 64 GW INSTEK Using the Oscilloscope Activating the software and connecting the GDS 122 Overview Activate the software and connect the GDS 122 to it properly by going through these steps described in the paragraphs that follow 1 Activating the software Activating the software and configuring the communication port Activating the GDS 122 and configuring the data format Connecting them together and if necessary installing the USB driver Acquiring waveform data to confirm that the communication is being secured Open the software by selecting DS_Wave exe from the startup menu E Help documentation ure Uninstall DS_Wave C USBDRYV Install Select Communications Communications Language Ports Settings from the ports settings menu or click the Ports Get Data CtritA settings icon on the Toolbar Make sure that USB connection is being selected The baud rate stop bit data bit and parity settings are fixed mm Ports settings Connect using Settings Bits per second fi 15200 Defaults Data bits Parity ae Stop bits Cancel 65 GW INSTEK GDS 122 User Manual Activating the GDS 122 Connecting the cable
5. D OPTIO E LEFT RIGHT Time Base UP DOWN CH1 or CH2 Vol LEFT RIGHT Time Base Vertical scale Horizontal scale Adjusting the Use the Left Right key to change the horizontal horizontal scale scale Original Adjusting the Use the Up Down key to change the vertical scale vertical scale 19 GW INSTEK GDS 122 User Manual 6 Adjusting waveform positions Selecting the Press the OSC OPTION key menu repeatedly until the following 3 a lt menu appears on the display LEFT RIGHT Time UP DOWN CH1 or CH2 Zero OPTIO Horizontal f 1 117KHZ Vp 144 0mu center F iiih position a a Vertical center position LEFT RIGHT Time x DO 1 cH 7 Jahn L L 4 A 1 mie LOtue CHF 1 00 Adjusting the Use the Left Right key to change the horizontal horizontal position position D Original Adjusting the Use the Up Down key to change the vertical vertical position position Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 20 FAX 781 665 0780 TestEquipmentDepot com GW INSTEK Using the Oscilloscope Configurations Overview Configuration items The configuration chapter describes how to change various GDS 122 internal parameters for allowing better measurement condition e Channel vertical settings page21 e Horizontal settings page24 e Trigger settings page24 e Acquisition modes page29 e Language page35 e Display set
6. The horizontal settings configure how the waveform appears in terms of horizontal or time scale Position Sets the horizontal position of the waveform Scale Sets the horizontal scale time per graticule Range 100ms s to 10s s 1 Press the OSC OPTION key repeatedly until the following ST menu appears on the display lt OPTIO E LEFT RIGHT Time GW INSTEK Using the Oscilloscope LEFT RIGHT Tine l3 JUWA T Ji LL L 2 Use the Left Right key to change the horizontal position 3 Original Selecting the 1 Press the OSC OPTION key horizontal scale repeatedly until the following menu appears on the display D OPTIO gt LEFT RIGHT Time Base EF T RIGHT Time Base wn UD Od we CH2 lOOwy 2 Use the Left Right key to change the horizontal scale Original E 25 GWINSTEK GDS 122 User Manual Configuring trigger settings general settings Overview Trigger status 26 The trigger settings configure how the incoming signal is triggered The general settings section describes how to start and stop triggering adjust the level and change the trigger mode e For edge triggering details see page29 e For video triggering details see page32 Status Shows the triggering status in the icon appearing in the upper right corner of the display Run Stop Controls starting and stopping the trigger Level Adjusts the vertical and horizontal level on which the
7. e Normal the black level is low Polarity e Inverted the black level is high Continues to the next page GW INSTEK Using the Oscilloscope Selecting the Press F3 Channel repeatedly to select CH2 source channel the trigger source channel CH1 or CHI CH2 The trigger channel indicator at the bottom right corner of the display changes Trigger source channel Selecting the Press F4 Polarity repeatedly to select Field sync the synchronization point re e Line the video line is used for triggering e Field the video field is used for triggering Example Video line trigger Video field trigger f 666 7KHZ f 666 KHZ 33 GW INSTEK GDS 122 User Manual Selecting the acquisition mode Overview The acquisition mode specifies how the incoming analog signal is digitally sampled by the GDS 122 Sample The waveform data is sampled at an equal time interval The sample mode accurately reconstructs the waveform but cannot respond to rapid changes and sudden peaks Peak detect The maximum and minimum data in the sampling interval are picked up The peak detect mode captures rapid changes and sudden peaks but the waveform becomes noisy Average Multiple samples are averaged together The average mode reduces the noise level but the waveform must be repetitive The number of averaging are 4 16 64 and 128 Panel operations 1 Press the MENU key and N select the ACQU MODE menu using the Up Dow
8. language Closing the software 70 You can select the language from English default or Simplified Chinese Select Language gt English Chinese from the menu The Language menu itself always stays as English English Chinese Language He Language Y English English Chinese Chinese chi ak FtS EAE HE chi TimeBase Scale Position Soous AH soous Ae You can close the software in one of the following ways The screen configurations will be retained the next time you open the software e Pressing the Alt F4 keys e Selecting File gt Exit from the File View Fort menu Open Page Setup Print Preview Frint Printer Setup e Clicking the Close icon at the top right corner of the software GW INSTEK Using the Oscilloscope Viewing the waveforms Overview This section introduces how to modify the waveform settings for better viewings e Selecting the displayed waveforms e Refreshing the waveforms e Selecting the active waveform e Changing the waveform positions e Changing the waveform scales e Viewing the automatic measurement results Screen overview Ele View Format Communicstonn Langage Heb saa MME 748 CH1 CH2 Horizontal scale Positior J Vertical scale Waveform Period 0 52 m5 Measurement list Frea 1 213 Khe PK PK 2 950V result Active waveform Selecting the In the left bottom corner of the screen put a displayed checkmark in th
9. resume measurement 2 Press the AUTOSET key repeatedly to select the capacitance measurement 3 The capacitance screen appears Battery level Auto range Capacitance Meter F1 F3 menu F1 F3 not used Measuring 5nF Connect the test leads to the CX cat 400V and above terminals Measuring less Connect the Capacitance then 5nF Extension module to the COM N amp V Q C terminals Then N connect the test leads to the extension module The measurement result will be constantly updated in the display Run Stop Delta measurement result Measurement unit Scaling factor Measurement result 93 GWINSTEK GDS 122 User Manual Freezing the measurement Measuring delta capacitance 1 Press F2 94 To freeze the measurement press the RUN STOP key The measurement a result will be retained and the indicator at the top right corner of the display changes to STOP To unfreeze press the RUN STOP key again To measure the delta value press F2 I A The measurement result at the moment moves to the top right corner of the display and the measurement result becomes the difference between the original result 2 Measurement 3 Delta value reset to zero displayed GW INSTEK Faq FAQ Power Q e The GDS 122 does not power up e The GDS 122 stopped working after a short period of time A The battery may need recharging Connect the GDS 122 to the AC adaptor
10. viewing seses 48 single trigger MOde ue 31 slope Tin SOP ane 29 snapshot display eeeseeeeseeeeseesess 67 software VEPSION siicecesssonasseveedaasarsensen 82 specifications CONC e E E 99 HUETE seoan 98 OSCIOSCOPE nsn 9y BIOP IIg SOP ensisi 27 STOP trigger stalus neruis 26 storage ENVITONMENE eceeeeeeeeee 8 subtraction math mode 39 synchronization video trigger 33 GY OTA STOTE aerae 37 Short aa 59 103 GWINSTEK ROSE CId eerie 10 threshold continuity multimeter 92 CE SEATI siaran 17 Ome CUr na 42 Trig d trigger statUSs siisiissisisssasis 26 trigger adjusting 1OVE list ciccssessasseresnaiavercces 27 OMO d Eon 30 channel edge trigger e s 30 coupling Modesereiiuisdoias 31 edge triggering 29 TOV OCT E A 30 normal NO Cisacin cis snearcopcsaneeresssons 31 PUN SEOD sxicsesceucarsaid dessesccasssatscaceetiys 27 STON CUS prai 56 SINE STOO S casa 31 3 0 6 Serer een ee et ene eee 29 source channel video 000 33 specifications wasirnasersncssesiermeiesoncenss 98 SEALS TOONE sopo enn e 26 status vs horizontal scale 27 sync video trigger 33 gysten SEALS sciuti ai 38 VICEO E E 32 UK power c rd ssesssisisissssrissresisisse 8 104 GDS 122 User Manual USB driver installation uo 65 yariatons VIEWING nessincsinisii 50 vector drawing essees 36 vertical adjusting position 20 22 AGIUSHING scale sp cceacasnouseasins 19 22 invettng channelsssissiisness 2
11. 1000X Max Input 400V peak Channel delay 150ps typical Horizontal Sampling rate 10S s 100mS s Interpolation sin x x Record length 6K points on each channel Scanning speed 5ns div 5s div 1 2 5 5 step Sampling rate 100ppm time interval gt 1ms relay time accuracy Interval AT Single 1 interval time 100ppmx accuracy full reading 0 6ns Average gt 16 1 bandwidth interval time 100ppm X reading 0 4ns Vertical A D converter 8 bits resolution 2CH simultaneously Sensitivity 5mV div 5V div Cat input Displacement 50V 500mV 5V 1V 5mV 200mvV Bandwidth 20M Single Full bandwidth Low frequency gt 5Hz Cat input AD coupling 3dB Rise time lt 17 5ns at input typical DC accuracy 5 DC gain DC accuracy avg Avg gt 16 5 rdg 0 05 div for AV 97 GWINSTEK GDS 122 User Manual Trigger Sensitivity CH1 and CH2 1div DC full bandwidth DC coupling gt 50Hz Trigger level 6 divisions from the screen center Level accuracy 0 3 div typical rise fall time gt 20ns Displacement 655div pre trigger 4div post trigger 50 level setting Input signal frequency gt 50Hz typical Trigger sensitivity 2 div of peak to peak video trigger Signal system NTSC PAL SECAM any frequency Measurement Cursor AV and AT between cursors Automatic Peak to peak average root mean square frequency and cycle Probe 1X position 10X position Bandwidth lt 6 MHz DC Full bandwidth DC Attenuation rate 1 1 1
12. 3 3 digits Max input 400mA direct input 20A via the extension module AC current Range amp 40mA 1 5 3 digits specifications Accuracy 400mA 2 1 digit details page98 20A 5 3 digits Max input 400mA direct input 20A via the extention module Panel operations 1 Press the A switch to select the current Ampere measurement If AX a warning message appears press any key to resume measurement Battery level Run Stop Auto Manual Delta range measurement result DCA ACA Measurement unit Meter Scaling factor Measurement result FI1 F5 menu 2 Press the AUTOSET key repeatedly to select DC or AC current measurement Measuring OmMA_ 1 Connect the test leads to the red black to 400mA terminals pans COM for the black lead MAX mA A for the red lead mA AS COM If the range is set at 20A press F4 mA and change it 20A gt mA to mA range B 87 GW INSTEK GDS 122 User Manual 2 Select automatic range by pressing F3 Auto or manual by F1 Manual The indicator at the top left corner of the display changes accordingly Measuring 1 Connect the Current 400mA to 20A Extension module to the COM amp mA A terminals N Then connect the test leads to the extension module 2 Press F5 20A and select the 20A 20A range The MANUAL J range indicator activates Auto range is not available Freezing the To freeze the measurement press the measurement
13. and recharge it for at least 15 minutes Then try powering up ERR mode inthe Q Inthe multimeter mode the measurement multimeter type at the top of the display says ERR which looks like an error message A The ERR sign appears when none of the measurement switch is pressed Select one from the V A or R switch and press it Amplitude Q The measured voltage is 10 times smaller than mismatch in the the real value oscilloscope The attenuation ratio on the probe is set at x10 If you switch it to x1 make sure that the input voltage does not surpass the maximum 400V Q The measured voltage is 10 100 1000 times larger than the real value A The probe ratio in the CH1 or CH2 setup menu is set at X10 X100 or X1000 See page21 for details Unstable Q The waveform appears in the display but is waveform in the not stable oscilloscope Configuring the trigger might help you See page29 for details e Make sure the trigger source channel matches the input signal e Make sure the correct trigger type edge or 95 GW INSTEK GDS 122 User Manual video is selected e Try changing the HF and LF repression in the trigger coupling mode and filtering out high or low frequency noise No waveform in Q The waveform does not appear at all in the the oscilloscope display A The trigger level might be out of the waveform range Press the AUTOSET key so that the GDS 122 automatically adjusts
14. ees 2 oe eee Pe CS Ee eee he rT ere a remem D IOLE 4 Press the OSC OPTION key OSC repeatedly until the Time OPTIO 45 GW INSTEK GDS 122 User Manual Base menu appears Cursor 1 menu eeu a UP DOWN CHi Vol 5 Use the arrow keys to change the zoom width Zoom out vertical scale Narrow range OSC Wide range OPTIO Zoom in vertical scale 6 Press F3 Zone Window to zoom into the window Window Example 46 GW INSTEK Using the Oscilloscope Viewing waveforms in X Y format Overview The X Y format plots the CH1 input as X axis and CH2 input as Y axis This display mode is convenient for viewing the phase relationship between CH1 and CH2 Panel operations 1 Make sure that both CH1 and CH2 waveforms appear in the display 2 Press the MENU key and select the DISP SET menu using the Up Down keys MENU 3 Press F3 Format and select XY The display mode Format switches into the X Y format Changing the Press the OSC OPTION key A scale and repeatedly to access the menu listed position below In the X Y mode all scales and positions are controlled by the Up Down keys V e CH1 Zero horizontal position e CH2 Zero vertical position e CH1 Vol horizontal scale e CH2 Vol vertical scale Functions not The following functions do not work in the X Y applicable in the format X Y format e Cursor measurement page42 page43 e Automatic measurement page41 e Window zoo
15. has no influence Pollution degree 2 Normally only non conductive pollution occurs GW INSTEK GDS 122 User Manual Occasionally however a temporary conductivity caused by condensation must be expected 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 but neither temperature nor humidity is controlled Storage e Location Indoor Sor One nt e Relative Humidity lt 75 e Temperature 10 C to 70 C Power cord for the United Kingdom When using the instrument in the United Kingdom make sure the power cord meets the following safety instructions NOTE This lead appliance must only be wired by competent persons WARNING THIS APPLIANCE MUST BE EARTHED IMPORTANT The wires in this lead are coloured in accordance with the following code Green Yellow Earth Blue Neutral Brown Live Phase As the colours of the wires in main leads may not correspond with the colours 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 the letter E or by the earth symbol or coloured Green or Green amp Yellow The wire which is coloured Blue must be connected to the terminal which is marked
16. level horizontal f 1 117 KHZ CH NFF A F oOo Trigger level 6 04 diost op 02 ES vertical 27 GWINSTEK GDS 122 User Manual 28 Use the arrow keys to change the triggering position Move the trigger vV up Move the Move the trigger po trigger point left right Move LYA trigger point down Pressing the Up and Down A Y key together resets the vertical trigger level to zero Pressing the Left and Right key together resets the horizontal trigger level to Zero GWINSTEK Using the Oscilloscope GW INSTEK Configuring trigger settings edge triggering Overview The edge trigger type triggers on the incoming signal edge Use the edge trigger for all signals except for video related ones e For general trigger settings see page26 e For video triggering details see page32 To select edge triggering follow these steps 1 Press the MENU key and use the Up Down keys to select TRIG MODE menu 2 Press F1 Type to select the Edge trigger type Edge TRIG MODE TYPE Selecting the F1 source channel OD Slope Selects the slope rising or falling on which the GDS 122 triggers the input signals Source Selects the signal source channel CH1 or CH2 Mode Selects the triggering mode Auto Selecting the acquires signal continuously trigger mode Normal acquires signal when trigger conditions are met and Single manually triggers the signal Coupling Sele
17. on or off WAVE SAVE F4 CH A B C D System Status SYS STAT Horizontal Vertical Trigger F4 F4 Show horizontal settings SYS STAT F1 Horizontal Show vertical settings SYS STAT gt F2 Vertical Show trigger settings SYS STAT gt F3 Trigger Show serial number SYS STAT F4 Misc 59 GW INSTEK GDS 122 User Manual OSC OPTION key UP Press the OSC OPTION key repeatedly The menu message appears in the lower half of eer 3 css a aicur the display and the functionalities of four PTIO keys UP DOWN RIGHT LEFT change accordingly F LEFT RIGHT Tihe Base UFZ DOUN CHI Yol LEFT RIGHT Time LEFT RIGHT CH1 CH2 horizontal position UP DOWN CH1 Zero UP DOWN CH1 vertical position J LEFT RIGHT Time LEFT RIGHT CH1 CH2 horizontal position UP DOWN CH2 Zero DE UP DOWN CH2 vertical position J LEFT RIGHT Time LEFT RIGHT CH1 CH2 horizontal position pe A UP DOWN Trigger vertical position J LEFT RIGHT Time Base LEFT RIGHT horizontal scale UP DOWN CH1 Vol UP DOWN CH1 vertical scale J LEFT RIGHT Time ae LEFT RIGHT horizontal scale UP DOWN CH2 V E UP DOWN CH2 vertical scale Math mode Math mode LEFT RIGHT Time LEFT RIGHT Math horizontal position UP DOWN CHM Zero UP DOWN Math vertical position Cursor mode Cursor mode LEFT RIGHT Time LEFT RIGHT CH1 CH2 horizontal position UP DOWN Cursor 1 2 UP DOWN Cursor 1 2 vertical position Test Equipment
18. settings general settings 26 Configuring trigger settings edge triggering 29 Configuring trigger settings video triggering 32 Selecting the acquisition MOCE cccceceeeeeeceeeeeeeeees 34 Selecting the language cccceccececeeceeeeceeeeceeseceeseeeeaes 35 Configuring display settings cccccceceececeeeeceeeeeeeees 36 Viewing the system StatuS cccccecseceeeceeeeceeeceseeseees 37 Measurements csieisicies nctaieedeevecdccwsivewsnencevesdeedevetaeuenns 39 RUNNING waveform MALNS ccccceececceceeceeceeseeeeeeeass 39 Running automatic measurements ccececeeeeeeeeeeeeees 4 Running time cursor MEASUFEMENS cceceeeeeeeeeeeeees 42 Running voltage Cursor measurements cececceeeeeeees 43 Advanced VICWINGS cccccceeeeceeeeesseeeeeeeeetteaueennnes 45 GWINSTEK GDS 122 User Manual Zooming waveforms horizontally cscceceeeeeeeeeees 45 Viewing waveforms in X Y format ccscceeceeseeeeeeees 47 Viewing signal peaks cccecceceececeececeeceeeeseeseceeaeeeeees 48 Viewing noisy SIQNAIS cccecceceececeececeececeeseceeseceeseeees 49 Viewing variations in a SIQKAL ccececeeceeeeceeeeeeceeees 50 CaO a ClO er E E E E AEE R 51 Running the self calibration ccccceeceeceeeeeeeeeeeeees 51 Running the probe calibration ccccecceeeeceeeeeeeeees 52 Saving Recalling cc cec
19. the screen e dy the voltage difference between y1 and y2 cursors yr ya voltage cursors 1 n a ous Me US e dx the time difference between x1 and x2 cursors Types jal hd e x1 x2 time cursors 1 and 2 Move the mouse over the cursor until the mouse icon changes into a left right arrow Hold the mouse and drag the cursor sideways horizontal cursor or vertically vertical cursor The cursor measurement result changes accordingly GW INSTEK Using the Oscilloscope Saving waveforms Overview Storing waveform data Storing data point You can save the waveforms into the PC in two ways For details of recalling them see page79 e Storing waveform data bin file for viewing in the software e Storing data points txt file for data analysis such as in graphs and maps For details of storing waveforms into the GDS 122 hardware see paged4 When retrieving waveform data from the GDS 122 the waveform data bin format is automatically stored For details see page69 1 Make sure that the waveform is being displayed in the screen To recall waveforms that are stored in the PC see page79 2 Select View gt Data Table from the View Format menu or click the Data Table v Wave YT icon on the Toolbar The Data Data Table Table dialogue appears lt la Pa Save option Save data f Close window 77 GWINSTEK 78 GDS 122 User Manual ca
20. uususicaninssnunis 11 magnification vertical ce 24 manual ranging current multimeter 88 impedance multimeter 90 voltage multimeter s es 86 manual overview Of ccecececeeeeeeees 14 Malh Modessa 39 Shor Uana 57 BY SUSI Sta US sacon 38 mean voltage auto measurement 41 multimeter CULV ALIS davsvaceseeicenciers cei 84 capacitance measurement 93 continuity measurement 92 current measurement 87 diode measurement 91 ERR Mod purses scoeepcastsmncnasananecannieyas 95 impedance measurement 89 specification B seissen 98 switching to oscilloscope 84 voltage measurement 85 warming MESSAQE cecesesseseeeees 84 GW INSTEK multiplication math mode 39 noisy signal VIEWING eee 49 normal trigger MOde eee 31 Operation environment 7 OSC Option Key sevssissssinsursovanvensaveatoseie 60 oscilloscope BPE CIICAUONS araso 97 switching to multimeter 16 package contents 10 PC software ACULV ATON aca 65 cursor Mmeasuremeni escicn 75 Nel nna EN 82 itista Ula liOT issuri 62 OEIC e 61 PACA E carscesosecscaaieatoseatccvecniontesenys 10 PEI OUa 80 SAVING Waveform seess 77 SCLESIN OVEL VIC W aisian 68 Honeta lesioen 64 VETSION era 82 Viewing Waveforms 71 peak detect acquisition mode 34 app UCANG ensia 48 period automatic measurement 41 persistence setting cess
21. waveform Source Source 4 Press F2 WAVE repeatedly and select the memory Wave location from A to D 5 Press F3 Save to confirm saving the waveform into the specified memory location Make sure that the message WAVE SAVE SUCCEEDED appears in the display WAVE SAVE SUCCEEDED GW INSTEK Using the Oscilloscope Recalling waveforms Overview Up to four waveforms can be stored in and recalled from the GDS 122 internal memory The stored waveform can be used for reference comparison XXXXXXXXxX Memory Four memories waveform A B C and D Source CH1 CH2 Math waveform Panel operations 1 Press the MENU key and select the WAVE SAVE menu using the Up Down keys MENU 2 Press F2 Wave repeatedly and select the waveform you Wave want to recall 3 Press F4 and turn ON the waveform The waveform CHA appears in the display f 1 117KH2 Che OFF Note The recalled waveform maintains its original horizontal scale and vertical scale which are shown in the top left corner of the display Changing the current scale does not affect the recalled waveform s shape 55 GW INSTEK GDS 122 User Manual Menu Tree Operation Shortcuts Accessing The following menu trees are N menus accessible by pressing the MENU key followed by Up Down keys except for the OSC OPTION key D page60 W Trigger RUN STOF AC Auto LF Rjc Rising C Normal HF Rjc H2 Edge Falling CH1 Single DC
22. waveforms are triggered The trigger status icon is located at the top right corner of the display The trigger condition is met The GDS 122 is showing the input signal waveform regardless of trigger condition Available in the Auto trigger mode in edge triggering page29 The trigger condition is not met and the GDS 122 is waiting for the next condition Available in the Normal trigger mode in edge triggering page29 The GDS 122 is showing the input signal waveform regardless of trigger condition The waveform is gradually updated from the left side of the display The GDS 122 automatically switches to the Scan when the horizontal scale is at 100ms div or longer Triggering is stopped regardless of the trigger condition In order to restart GW INSTEK Run Stop Trigger level Using the Oscilloscope triggering you have to press the RUN STOP key again in single trigger mode or switch to another trigger mode Horizontal scale vs trigger status 5ns div 100ms div 5s div Pressing the Run Stop key once stops triggering at most situations and changes the trigger icon to STOP stop In the single trigger mode in edge triggering page29 pressing the RUN STOP key works as both activating and deactivating trigger Press the OSC OPTION key OSC repeatedly until the following menu OPTIO appears on the display LEFT RIGHT Time LEFT R IGHT Time UP DOWN Trig Trigger level indicators Trigger
23. 0 1 Compensation 10pf 35pf 10pf 35pf Input impedance IM2 2 1OM2 2 Input impendence 85pf 115pf 14 5pf 17 5pf Input voltage 150 V DC 300V DC Multimeter specifications VDC Input impedance 10MQ Max input 1000V DC or AC peak to peak value Accuracy 1 1 digit Resolution 400mV range 100uV 4V range ImV 40V range 10mV 400V range 100mV VAC Input impedance 10MQ Max input 750V AC virtual value Frequency range 40Hz 400Hz Display Virtual value of sine wave Accuracy 1 3 digits Resolution 4V range ImV 40V range 10mV 400V range 100mV DCA Accuracy 40mA range 1 1 digit 400mA range 1 5 1 digit 20A range 3 3 digits Resolution 40mA range 10uA 98 GW INSTEK Specifications 400mA range 100uA 20A range 1OmA ACA Accuracy 40mA range 1 5 3 digit 400mA range 2 1 digit 20A range 5 3 digits Resolution 40mA range 10uA 400mA range 100uUA 20A range 1OmA Resistance Accuracy 4000 range 1 3 digits 4kQ 4MO range 1 1 digit 40MQ range 1 5 1 digit Resolution 4000 range 0 10 4kQ range 10 40kQ range 100 400kQ range 1000 4MQ range 1kO 40MO range 10kO Capacitance Accuracy 3 3 digits Resolution 51 2nF range 10pF 512nF range 100pF 5 1 2uF range 1nF 51 2uF range 10nF 100uF range 100nF Diode Reading range OV 1 5V Continuity Threshold lt 300 General specifications Display Type 3 8 color liquid crystal display Resolution 320 horizontal lt 240 vertical pixels Color 40
24. 2 Press the MENU key and use the Up Down keys to select the CH1 CH2 SETUP menu Press F2 Channel repeatedly to turn on or off the channel GW INSTEK Using the Oscilloscope Selecting the coupling mode Inverting the channel OFF CH1 SETUP oe CH2 SETUP j Sc O zZ OD Note that when using the Autoset function page18 channels are automatically turned on or off 1 a 1 2s Press the MENU key and use the Up Down keys to select the CH1 CH2 SETUP menu Press F1 Coupling repeatedly to select DC or AC coupling DC H1 SETUP on ENS CH2 SETUP Coupling W GD The DC coupling shows both DC and AC signal The AC coupling only shows the AC signal DC coupling center point is at the bottom due to DC a ila ae a lnk offset AC coupling center point is at the middle since the DC offset is being removed cated tae co ee vee Press the MENU key and use the Up Down keys to select the CH1 CH2 SETUP menu Press F4 Inverted to invert the waveform 23 GW INSTEK Selecting the magnification GDS 122 User Manual ON CH1 SETUP CH2 SETUP ERER OD Invert off Invert on 1 Press the MENU key and use the Up Down keys to select the CH1 CH2 SETUP menu 2 Press F3 Probe repeatedly to select the probe magnification ratio CH1 SETUP CH2 SETUP j ie OD Configuring horizontal settings Overview Setting the horizontal position
25. 3 selecting coupling mode 23 selecting magnification 24 SNOT Sueos AN 56 specifications sresnucsavesternecsucsarstoneanss 97 System SEACUS sson 38 video ERCP GF ernen 32 Held TENE OCT oasaiesanon an 33 INE ETS E inunan 33 SOUTE CHINNE leses 33 ETI O N 33 voltage CURSOR ososi 43 warning message multimeter 84 warning SY IDO sscciuavesnessesnsctessomsactans 6 By TOG Cs A canes 47 SVSLCI S A Sauen 37 ZOOM WAVEOM ccrsaieseseraisponasiaumdeys 45 system SLALUS ssis 37
26. 66 1 1 Power up the GDS 122 and activate the oscilloscope screen Connect an input signal to CH1 and make sure that the waveform is shown appropriately on the GDS 122 display Open the DISP SET menu and press F4 Carry to select the format of the waveform data sent from the GDS 122 to the software N Vectors Bitmap W Fa Vectors Vectored data of the waveform Always select the vector format when viewing the waveform in the software Bitmap Bitmap image of the display Select the Bitmap format only when taking the bitmap snapshot of the GDS 122 hardware screen Connect the GDS 122 to the PC software via the USB cable Make sure that the USB driver is installed in your PC by accessing the Device Manager Control Panel gt System gt Hardware tab The GDS 122 should be recognized as a USB hub USB Universal Serial Bus Paras ntek Ri s401 FE FHM St oscilloscope usb Board If the driver has not been Ai DS Waveexe recognized install it manually by selecting USBDRYV Install from the startup menu The driver file is located in the USBDRV folder in the software directory ee Help documentation wh Uninstall DS_Wave MB USBDRY Install GW INSTEK Acquiring data Using the Oscilloscope In the software select Communications Language Communications Get Data from the menu Alternatively you may click the Get data 5 icon or press the Ctrl A a key port
27. 96 colors Power Consumption lt 6W Supply 100V 240V AC 50 60Hz DC input 8 5VDC 1500mA Environment Operating Temperature O to 40 C 32 to 104 F Relative humidity lt 75 Storage Temperature 20 to 60 C 4 to 140 F Relative humidity lt 75 Mechanical Dimension 18 cmx11 5cmx4cm Weight 645g 99 GW INSTEK GDS 122 User Manual DECLARATION OF CONFORMITY We GOOD WILL INSTRUMENT CO LTD 1 No 7 1 Jhongsing Rd Tucheng City Taipei County Taiwan 2 No 69 Lu San Road Suzhou City Xin Qu Jiangsu Sheng China declare that the below mentioned product Type of Product Handheld Digital Storage Oscilloscope amp Multimeter Model Number GDS 122 is 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 89 336 EEC and Low Voltage Directive 73 23 EEC For the evaluation regarding the Electromagnetic Compatibility and Low Voltage Directive the following standards were applied EMC EN 61326 1 Electrical equipment for measurement control and laboratory use EMC requirements 1997 A1 1998 A2 2001 A3 2003 Current Harmonics Voltage Fluctuations EN 61000 3 2 2000 A2 2005 EN 61000 3 3 1995 A1 2001 Safety Low Voltage Equipment Directive 73 23 EEC Safety Requirements TEC EN 61010 1 2001 2nd Edition Te
28. Depot 800 517 8431 99 Washington Street Melrose MA 02176 60 FAX 781 665 0780 TestEquipmentDepot com GW INSTEK Using the Oscilloscope Using the Software Overview The GDS 122 PC software included in the CD ROM allows you to view the waveforms in your familiar PC environment large display and mouse operation Multiple cursors provide flexible waveform measurements Software The PC software can run the following functionalities measurement and actions e Viewing real time updated waveforms e Running up to 6 cursor measurements e Measuring period frequency pk pk voltage e Printing out waveform images e Saving and recalling waveform shape and data Software The following is the list of software operations operations described in this chapter e Installing the software page62 e Modifying reinstalling or page64 uninstalling the software e Connecting the GDS 122 page65 e Configuring the screen page6s e Viewing waveforms page69 e Measuring waveforms page75 e Saving waveforms page75 e Recalling waveforms page77 e Printing out waveforms pages0 e Accessing the Help page82 Note The PC software is intended for oscilloscope operations only it does not include multimeter operations GW INSTEK GDS 122 User Manual Installing the software PC requirements e Windows 2000 or XP e 20MB hard drive space e USB host port x 1 Installation steps 1 Activate the Setup exe file in the ey CD ROM E setu
29. Help icon on the Toolbar e Pressing the shortcut key F1 Help F1 About e Selecting the Help documentation from the startup menu i DS Wave exe E Help documentation ey Uninstall DE Wave Help Software version To view the software version select Help gt About from the menu The software version screen appears 82 Help F1 About GW INSTEK Using the Multimeter USING THE MULTIMETER This chapter describes the multimeter functionalities in the GDS 122 Functionalities includes three major items Voltage Current Impedance and three additional items Diode Continuity Capacitance The current measurement and capacitance measurement use extension modules to deal with large current and small capacitance respectively Delta measurement and automatic range switching features offer flexibility and convenience Activating the Multimeter cccccce cece eee ee eeeeeeeeees 84 Measuring Voltage cece cece ceeeteeeeeeneeeeeetteeaaaeennnes 85 Measuring Current ccc cece cece ce cce eee e een eeeceeneeseeaes 87 Measuring Impedance c ccc cececeeee eee e tees eeeeeeenneeeennes 89 Measuring Diode cccee cece eeeceeeenesseeeeeeeeeeeseaagages 9 Measuring Continuity ccc ccc cee cece eee e ee eeeeeeeeseaees 92 Measuring Capacitance ccc ccc ccee cece ceeeeeeeeeeeeeaeees 93 83 GW INSTEK GDS 122 User Manual Activating the Multi
30. If you want to jump start using the GDS 122 go directly to the Using Oscilloscope or Using Multimeter chapter The Safety Instructions gives you an overview of important safety related issues which you should be aware of before during and after operations The Getting Started chapter provides you with the overview of the GDS 122 main features package contents front panel and user manual this section The Using the Oscilloscope chapter describes in detail how to use the GDS 122 s oscilloscope functionalities including the PC software The chapter starts with simple basic operations toward more complex measurements and settings If you are new to the GDS 122 start with the Basic Operations section For advanced users the Menu Tree Shortcuts section shows the menu structures and all operations shortcuts The Using the Multimeter chapter describes how to use the GDS 122 s multimeter functionalities The most commonly used Voltage Current and Resistance sections are listed in the front The Faq chapter lists major problems you might encounter during operations and how to fix or avoid them Most issues are also listed in the relevant chapters throughout the document The GDS 122 specifications are separated in oscilloscope multimeter and general parts The Declaration of Conformity chapter lists the safety and EMI EMC standards to which the GDS 122 conforms The Index chapter lists most of the keywords used i
31. M Vol aai a 2 Use the arrow keys to change the math result scale Bi C Saving or The math result waveform can be saved into or recalling the recalled from one of the four GDS 122 internal math result memories See page53 for details 40 GW INSTEK Using the Oscilloscope Running automatic measurements Overview The automatic measurement function measures the input signal s characteristics and lists them in the top left corner of the display Source signal CH1 CH2 Measurement set SET1 SET2 Measurement The following measurement items are available tems e Frequency e Period e Mean voltage e Peak to peak voltage e Cycle voltage true RMS Panel operations 1 Make sure that the waveform appears 2 Press the MENU key and select the MEAS SET1 or AN SET2 menu using the Up Down keys SET1 and NA SET2 correspond to the results in the upper left corner of the display MEAS SETI MEAS SET2 f 1 170KHZ Wp 632 0mv MEAS SET1 MEAS SET2 Oo Measurement items gt 3 Select the measurement type from F1 Freq to 41 GW INSTEK GDS 122 User Manual F5 Cyc Press it repeatedly to select CH1 or 2 Top left__ corner 4 The measurement result appears in the top left corner of the display Running time cursor measurements Overview The time cursor function measures and updates the following three types of time difference e Between cursor 1 and cursor 2 e Between cursor 1 and cente
32. RUN STOP key The measurement result will be retained and the indicator at the top right corner of the 1 display changes to STOP To unfreeze press the RUN STOP key again Measuring delta To measure the delta value press F2 current I A The measurement result at the moment moves to the top right corner of the display and the measurement result becomes the difference between the original result 1 Press F2 2 Measurement 3 Delta value reset to zero displayed 88 GW INSTEK Using the Multimeter Measuring Impedance Impedance Range amp 400Q 1 3 digits specifications Resolution 4k 40k 400k 4MQ 1 1 digit details page98 aa Ea 40MQ 1 5 3 digits Panel operations 1 Press the R switch If a warning message appears press any key to o iyi resume measurement 2 Press the AUTOSET key repeatedly to select the impedance measurement 3 The impedance screen appears Battery level Z Giz Run Stop 100 0kQO Auto Manual Delta range measurement result Impedance Measurement unit Meter Scaling factor Measurement result F1 F3 menu 4 Connect the test leads to the black AN red terminals aN COM for the black lead 400 V Q C for the red lead COM V Q C 5 The measurement result will be constantly updated in the display For more detailed settings see the following instructions Auto ranging To let the GDS 122 select the voltage range automatically press F3 Auto The
33. Saving waveformS s sssssssusrrnrnrnrnrnrnnrnrnrnrnrnrnrrnrnrnenne 77 Recalling waveforms cccceccecceececeeceecueceecueseeseseesees 79 Printing out waveformS s sssensnsnenrrnrnrnnrnrnenenennnnnnne 80 Accessing the Help s sessnnnsononennnnnennnnernrrrnnnrnerernrnrenne 82 Using the Multimeter cccccceeeeeesueeeeeeess 83 GW INSTEK TABLE OF CONTENTS Activating the Multimeter cccee cece ee eeeeeeeeeeees 84 Measuring Voltage ccc cece ee ceeeeeeseeeneeeeeeeteeaaneennnes 85 Measuring Current cece cece ce ence cee ee ee ceenceeceeneeseeaes 87 Measuring Impedance ccc cece cceeeeeeeee eens eeeeteeneeeennes 89 Measuring Diode ccce cece cece eeeeeeesneeeeeeeeeeseeaugeaes 9 Measuring Continuity ccc cece ce eee eecee ee eeeeeeeeeeaees 92 Measuring Capacitance ccc ccc ecee cece ceeeeeeeeeeesaeees 93 1 Co EEN E E E E E E 95 SpecificationS assassnusnnunnunnnnnnnnnnnnnnnnnnnnne 97 Oscilloscope specifications ccccecceceeceeceteeeeteeeeeeeees 97 Multimeter specifications ccceceeceeeeceeeeceeeeseeeeeeees 98 General specifications ccececceceececeececeeeeteeseceteeeeeees 99 Declaration of Conformity cccceeeeeeeees 100 ic ene ree rt ee eee 101 GW INSTEK GDS 122 User Manual SAFETY INSTRUCTIONS This chapter contains important safety instructions that you should follow when operating t
34. Test Equipment 99 Washington Street Depot Melrose MA 02176 Phone 781 665 1400 1 800 517 8431 Toll Free 1 800 517 8431 ieee i semen seer Digital Oscilloscope amp Multimeter GDS 122 USER MANUAL GW INSTEK PART NO z ISO 9001 CERTIFIED MANUFACTURER GW INSTEK GW INSTEK TABLE OF CONTENTS TABLE OF CONTENTS Safety INStrUCTIONS cc cece eee eeeeeeeeeeeeeeeeeeeeee 6 GENO SCANUCC ccccenweunennenaasseaysensarsenamiceceanestion 9 Package Contento on 23crecacoueensaudinicenseeontancuncescecanaweae 10 MaN POOLS oier aar A ERER 11 Front Panel and Keys Overview cccccceeeeeeeeeeeeeeeeees 12 Manual OVEervVIEW as ciiaseccercsianavavanstdasidcaceiepetrdeeedbawaan 14 Using the OscilloScOpe cccceeeseeeeeeeeeeees 15 Bas ICO DCEATION Stccscaccacndenciseacianeadetseansancepenoneenaeciceend 16 1 Powering up the GDS 122 cccccceceececeeeeceeeeseeees 16 2 Connecting an input Signal cceceeceeeeeeeceeeeeeees 17 3 Using the Autoset FUNCTION ccceceeeeceeeeteeeeeeees 18 4 Introducing the display Content scecceeeeeeeeees 18 5 Adjusting Waveform SCAIOS ccecceeeeceeeeeeeeeseeeeees 19 6 Adjusting Waveform POSitiONS ceceeeeeeeeeeeeeeeees 20 CONFMOUTAUIONS sccsnenshcisicesentdewes eE AEN NEENA 21 Configuring channel vertical settings ceceeeeeees 21 Configuring horizontal SettingS cccceceeseeeeeeeeeeees 24 Configuring trigger
35. WAVE MATH gt F3 CH1 CH2 Multiply CH2 with CH1 WAVE MATH gt F4 CH1 CH2 Divide CH1 by CH2 WAVE MATH gt F5 CH1 CH2 Cursor Measurement Time Voltage CH2 CURS MEAS on a Type Source Activate cursor measurement CURS MEAS F1 Type Select source channel CURS MEAS F2 Source 57 GW INSTEK GDS 122 User Manual Acquisition Mode Peak 16 ACQU MoDE J sample Select sampling mode ACQU MODE gt F 1 Sample Select peak detect mode ACQU MODE F2 Peak Detect Select average mode ACQU MODE F3 Average Select average number ACQU MODE F3 gt F4 Averages Time Mode Main Set Zone Select main timebase TIME MODE F1 Main TimeBase Set window zoom width TIME MODE F2 Set Window Zoom window TIME MODE F3 Zone Window Function Recall Do A Recall factory settings FUNCTION gt F1 Recall Factory Run self calibration FUNCTION F2 Do Self Cal Select language FUNCTION F3 Language UI 8 GW INSTEK Using the Oscilloscope Dots 1 sec XY Vectors Vectors OFF YT Bitmap uaa Type Persist Format Select line display DISP SET F1 Type Select persistency DISP SET F2 Persist Select display format DISP SET F3 Format Select display save format DISP SET F4 Carry Wave Save D Math OFF C B A CH2 ON CHI OFF WAVE SAVE cource Wave Save CH Select source channel WAVE SAVE F1 Source Select waveform ID WAVE SAVE F2 Wave Save waveform WAVE SAVE F3 Save Turn waveform display
36. age ect meeaeoneeeeey lt qD ue 3 Setting the 1 After attenuating the probe level by x10 you display need to magnify the display level by x10 to magnification balance the signal level Open the CH1 or CH2 SETUP menu by pressing the MENU key and using the Up Down keys 2 Select the probe attenuation level 10X by pressing F3 Probe repeatedly The CH1 CH2 vertical scale indicator at the bottom left corner of the display changes accordingly CH2 SETUP Probe v F3 17 GW INSTEK GDS 122 User Manual 3 Using the Autoset function Overview The Autoset function automatically configures the following parameters according to the input signal e CH1 CH2 on off e Vertical scale level e Horizontal scale level e Trigger level Using the Press the AUTOSET key The input Autoset function signal appears in the best display condition Example Before After Frequency Trigger status channel off Horizontal center position vertical center Trigger level position Horizontal scale Vertical center position vertical scale GW INSTEK Using the Oscilloscope Trigger status e The signal is triggered e Waiting for trigger conditions e Triggering is stopped stor Press the RUN STOP key to control trigger on off run stop 5 Adjusting waveform scales Selecting the Press the OSC OPTION key menu repeatedly until the following ate menu appears on the display
37. asurement performed at the source of low voltage installation Measurement category III is for measurement performed in the building installation Measurement category Il is for measurement performed on the circuits directly connected to the low voltage installation Measurement category is for measurements performed on circuits not directly connected to Mains AC Input voltage 100 to 240V 50 60Hz The power supply voltage should not fluctuate more than 10 Always use the AC adaptor included in the package Always connect the AC adaptor to the mains line first then to the instrument Disconnect the power cord before cleaning the instrument Use a soft cloth dampened in a solution of mild detergent and water Do not spray liquid into the instrument Do not use chemicals or cleaners containing harsh products such as benzene toluene xylene and acetone Location Indoor no direct sunlight dust free most non conductive pollution see note below Relative Humidity lt 75 Altitude lt 2000m Temperature 0 C to 40 C Pollution Degree EN 61010 1 2001 specifies the pollution degrees and their requirements as follows This instrument falls under degree 2 Pollution refers to addition of foreign matter solid liquid or gaseous ionized gases that may produce a reduction of dielectric strength or surface resistivity Pollution degree 1 No pollution or only dry non conductive pollution occurs The pollution
38. called in the screen Ele Yaw Forma Communications Large Hee elo MMe a Daz ms 1 213 Khe 2 960 Eaa Recalling the 1 For recalling the data points you need to open data points a text editor or a spreadsheet program like Excel in which you can organize the data and create graphs and maps for advanced analysis 2 Open the saved txt file from the application Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 79 GW INSTEK GDS 122 User Manual Printing out waveforms Overview You can print out the screen contents to a printer connected to the PC When you are printing the waveform for the first time follow all the steps in the following order 1 Setting up the printer 2 Setting up the page format 3 Printing out 1 Setting up the Select File gt Printer Setup File Wiew For printer from the menu The standard e printer setting dialogue a opens Fage Setup Print Previews Print Printer Setup 2 Select the printer and its properties paper size and orientation Setting up the 1 Select File gt Page Setup from File View Fo page format the menu The Page Setup dialog window opens Open Page Setup Es Borderli n e Borderline Tope cm Bottam 1 0 cm Left 1 0 cm Right 1 0 cm View Setting view Setting Redraw graph according to sample data Graph z
39. cpececocancececeececsseeeceesesaiereeteeabscnas 10 Main FeatUureS assaassnnsunnnunnnurnnnrnunrnurnnurnnnrnnrrnnrrnnrrnnne 11 Front Panel and Keys Overview cccccceceeeeeeeeeeeenees 12 Manual Overview ivicsddiscncvectarsduntemensinnneeieiadaceueereannnds 14 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 9 GW INSTEK GDS 122 User Manual Package Contents Carrying case GDS 122 e ie EEE ee pu ee ee ee re a eee AC DC adaptor Oscilloscope probe x 2 Probe adjustment tool Multimeter test lead x 2 Extension module for large Extension module for small current measurement capacitance measurement Serial data communication cable User Manual this document CD ROM PC software Q GW INSTEK Getting Started GWINSTEK GDS 122 User Manual Main Features Front Panel and Keys Overview Oscilloscope e Dual channel AC adaptor USB port 20MHz bandwidth plug STEK cos 122 e 100MS s real time sampling rate e lt 17 5ns rising time SR eee re i Display BEd Ge whe 2 e 5ns to 5s div horizontal scale contrast a es Coe eC AS LCD switch HNH catenin N i display e 5mV to 5V div vertical scale iN iiA H aoe i e 6k memory points per channel sSSSSSSSSS a a e Isolated inputs between oscilloscope and multimeter Fl F5 keys OSC OPTION key e Autoset function Power E ATONEN a MENU ke
40. cts the DC or AC coupling and rejection filters high frequency or low frequency Selecting the Press F2 Slope repeatedly to Rising trigger slope select the rising or falling slope Slope Continues to the next page GDS 122 User Manual Example rising edge Rising edge Triggering point f 1 117KH2 CH2 OFF Press F3 Channel repeatedly to select CH2 the trigger source channel CH1 or T CH2 The trigger channel indicator at the bottom right corner of the display changes Trigger source channel Press F4 Mode repeatedly to select Auto the trigger mode The trigger status Normal icon in the upper right corner of the Single display changes accordingly For the Mode overview of trigger status in general see page26 Auto mode In the auto mode input signals are constantly acquired and shown in the display regardless of trigger condition Horizontal scale div 5ns 100ms 5S Status icon when triggered Status icon when not triggered 7 GW INSTEK Selecting the coupling mode Using the Oscilloscope Normal mode In the normal mode input signals are shown in the display only if the trigger condition is met Horizontal scale div 5ns 100ms 5S Status icon when triggered l Status icon when not triggered 3 Single mode In the single mode you manually trigger by pressing the RUN STOP key each time you need to observe the waveform Once the waveform is captured the GDS 122 stops trigger
41. dance measurement 89 DCA MiG IMCD osanna 87 voltage multimeter 85 SPECIFICATIONS senaia 98 average acquisition mode 34 ICY Fay C SP eanna 85 AP PICA ON surisi 49 SDE CIN CALIOINS ssamen 98 background color PC software 68 Cl AU IE SCE Seere 53 patery loye husini 16 delta measurement ca DTT ans 51 capacitance multimeter 94 short CUES n 58 current multimeter cce 88 capacitance measurement impedance multimeter 90 mUe seca cgicoedsconsscvaasotgatuiccests 93 voltage multimeter 86 specitica tions sasoiari niia 99 diode measurement multimeter 91 carry interface setting 66 speciticatiori S essiri 99 PATTY WAS CASE uea 10 display caution SY DOM cucscasesncescahanctsnsessocseeeenn 6 acquiring snapshot 67 CD ROM ssion ana 10 brightness adjustment 16 GW INSTEK OVELVICW sussies ani 19 BOUIN S arrin a 36 SHROT a 59 sPEcCOCATONE srrcoressn a 99 division math mode l 39 dot GPa W I eaa 36 COGS INg OM ea 29 AULO MO d Gen 30 co pling mode ssemnicaretaien 31 Modesa EAEE 30 normal mode s sssssssesesererersssses 31 Saele MOda 31 ENG LOO osinn 100 EN61010 declaration of conformity 100 measurement Category essee 7 pollution degree ENG S20 Lasan 100 English language selection 35 environment OP Sra O usca 7 specifications xaessasersasccedeavsaneeascaaies 99 a eE E AEE 8 ERR mode multimeter
42. dependent data points persistence The persistence setting sets how long the old waveforms remain in the display useful for observing the waveform variations Panel operations 1 Press the MENU key and use the Up Down keys to select the DISP SET menu 2 Press F1 Type or F2 Persist repeatedly to select vector drawing dot drawing and persistence time Infinite Dots 1 2 5 sec Vectors OFF SIG Vector dot Vector Dot drawing example TEIR oe a eee cereciar teres Persistence example 36 GW INSTEK Using the Oscilloscope Viewing the system status Overview The system status menu shows the GDS 122 system settings Panel operations 1 Press the MENU key and select the SYS STAT menu using the Up Down keys OD 2 Select the status menu from F1 Horizontal to F4 Misc and press it The status information appears in the display 3 To close the system status screen select different menus using the MENU key wew followed by Up Down keys Horizontal status F1 HORIZONTAL SYSTEM STATUS For details of each item see the TIME BASE MAIN TIME BASE following pages MAIN SCALE 1 Oms Time base page24 WINDOW SCALE 10 us MAIN POSITION 300 0us Main window scale page45 WINDOW POSITION 559 6005 DISPLAY FORMAT YT ACQUIRE MODE SAMPLE Main window position page45 Display format page47 XY Acquire mode page34 Continues to the next page 37 GWINSTEK GDS 122 User Ma
43. e Voltage Kae P CH2 otor a Vertical scale Waveform li Period 082 mS Measurement Ist Nor J 3 ms a Frea 1 213 Kee result ile TProuy aon Fee Ds WAVE Dal DOs 10251417 bn S122 Model name location Changing the To change the background color View Format Commi background select View gt Background Color Wave YT color from the menu and select the pe new color from the color palette Grid Color that appears Alternatively you en Sieis can also double click inside the screen to call the color palette Black background White background I I eepe ee p 68 GW INSTEK Using the Oscilloscope Turning the grid To turn on or off the grid select View Format Commi on or off View gt Grid lines from the menu ave YT or click the Gridlines icon Data Table Grid Color Background Color v Grid lines Grid on Grid off Changing the Make sure the grid is already View Format grid color turned on Select View gt Grid v Wave YT Color from the menu and select Data Table the new color from the color Grid Color palette that appears nai Blue grid White grid Changing the You can select how the waveform is being drawn waveform from two formats line and dots Select Format gt drawing format Data Line Point from the menu or click the icons Line Point Format Go Format Go Data Line 69 GWINSTEK GDS 122 User Manual Changing the
44. e eee e cece eeeeeeeeeeeeeeeeeeaseaeenenes 53 Recalling the default settings cccceececseceeceeeeeseees 53 SAVING waveformS 0ccecceccececeececceceeeseceeceecuesessesaeeass 54 Recalling WaVeTOIIMS cccceccecceececeeceeceesaeceeceeseseeaees 55 Menu Tree Operation Shortcuts cece cece eee eee ees 56 DEVO pecs sect e nice ace EEEa 56 CHT CH2 SOLU oeie E S 56 Measurement Setup 1 2 cccccccececececeeeeseseceeeeeeseeeees 57 Wave Math ixiicciecscnredactcenudaisqosnudasnuiiiondatadeehsusisasuosbunccadeebicas 57 Cursor MeasSurement ccceecececececececececececeensnenenenes 57 ACQUISITION Mode ccccecececeeeceeeeeecececeeeeaeeeseeeeanseees 58 Time lols Seater ett tron tec a eee nent eer ten rt en 58 PUNCO coana O AEEA 58 DED in E E 59 WAVES AV E EE E E ETE T T 59 System StAtUs retcenaccenecunceoaicenccestuets aseubacsemnideccesscuacuesa 59 OSC OP TION key seca c ice cecaatetatasaseasdeacadiatennedsacetoswienene 60 Using the Software sccccccscereciviactecninaereanasanbcwecewseteieenss 6 Installing the software cccccecceceeceeceeceeceeceeseseeeaees 62 Modifying Reinstalling Uninstalling the software 64 Activating the software and connecting the GDS 122 65 Configuring the screen cccceceececceeceeeeeeeceeceeseeaeeass 68 Viewing the waveforms ccecceeceeceeceececeeceesessesaeeaees 71 Using the cursor MEASUrEMENKS eccecececeeeeeeeeeeeees 75
45. e waveform that needs to appear waveforms Maximum six waveforms are available CH1 CH2 A B C D Waveforms A to D have to be stored in the GDS 122 hardware beforehand see page54 for details CH1 CH2 selected o 2505 ss LA n nS 2 00m fl OB 3 nS 2 D m fl Ete 3 nS 2 D m fl 71 GWINSTEK GDS 122 User Manual Refreshing the waveforms Selecting the active waveform Changing the waveform positions 72 In the software select Communications Lang Communications Get Data ports settings from the menu Alternatively et Dats you may click the Get data icon or press the shortcut keys Ctrl ie A Waveform scale settings and automatic measurements are done on the active waveform 1 Click on the waveform name in the bottom left corner of the screen CH1 selected as the active waveform 25005 2000Y DA 5 ns 2 00mv fi OB 5 ns 2 00m f4 ale 5 ns 2 00m j1 2 The following locations changes into the selected channel example CH1 e Colored channel label at the left side of the screen e Cursor Time base Voltage peh1 Cursor settings at the right side of the screen pehi TimeBase pa Voltage e Automatic measurement chl Period 0 82 mS results at the bottom right Sag LAIKA corner of the display PPK 13 200 v Changing the horizontal position 1 Move the mouse over the waveform until the mouse icon changes into a left right arr
46. easurement page42 e Voltage cursor measurement page43 Running waveform maths Overview The waveform math function runs mathematical operations between CH1 and CH2 waveform and then shows the result in the display Math type e CH1 CH2 subtract CH2 from CH1 e CH2 CH1 subtract CH1 from CH2 e CH1 CH2 add CH1 and CH2 e CH1 CH2 multiply CH1 and CH2 e CH1 CH2 divide CH1 by CH2 Panel operations 1 Make sure that both CH1 and CH2 waveforms are shown in the display 2 Press the MENU key and select the WAVE MATH menu DN using the Up Down keys wed WAVE MATH 3 Select the math operation from F1 CH1 CH2 to F5 CH1 CH2 and press it CH1 CH2 CH2 CH1 CH1 CH2 CH1 CH2 CH1 CH2 4 The math result appears in the display example adding two square waveforms Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 39 GW INSTEK GDS 122 User Manual 5 To cancel the math result press the function key F1 to F5 again Changing the 1 Press the OSC OPTION key OSC math result Make sure the following menu QPTIO position appears on the display LEFT RIGHT Time UP DOWN CHM Zero pnae 2 Use the arrow keys to move the math result position D E Changing the 1 Press the OSC OPTION key OSC math result scale repeatedly until the following OPTIO menu appears on the display LEFT RIGHT Time Base n a Uo UP DOWN CH
47. es 36 APPUCAT ONG aseran kaan 50 pk pk voltage automatic MIC ASU POMC asana 41 point data PC software 69 position HOPI ZOM ball scisscesssecacesurseseesecangoensacess 24 Mali MOda 40 SHONO Saian 60 FLING CUISOE c S 43 AE TO BOL yasssatiscinseasseussauswarasesetaamaesaiaes 27 VETLICA E 22 volage CUTS uence 44 waveform PC software 72 XY MOLE 47 power supply Safety INStrUCtiONS seess 7 sp citicaionS seess 99 POWER up Tag ueciiisieisirdisiiuii 95 POWCTINE UD nerea 16 print out PC software 80 Index probe adjusting display magnification 17 adjustment tool paeontinesccvnsscveeonsnccars 10 COD TAO iesscesctenverscsonssepevossdeensntans 52 OLS 2s carer a er ener ene reer 10 setting attenuation 17 specifications ecer 98 Ready trigger status eee 26 recalling default settings eee 53 default settings shortcuts 58 waveforms from GDS 122 55 waveforms PC software 79 resetting trigger level 28 TU EIS CON genoa 27 sample acquisition mode 00 34 saving SION L CUS ookin 59 waveforms in PC software 77 waveforms inside GDS 122 54 scale HOPI ZO all esaa cetssacacuareatacertedeenaossis 25 mat MON Eoria 40 WT UNC has sanity cieatieseisedshuaseoruansietreahaseasts 22 waveform PC software 73 MY MO Een 47 ZOO ei N 46 Scan trigger stallis sciis 26 Self cabral siriana 51 SET1 2 automatic measurement 41 signal peak
48. fluctuates more than 5 degrees Celsius during operations e When operating the GDS 122 in a new benchtop or field environment Procedures 1 Press the MENU key and N select the FUNCTION menu using the Up Down keys veno 2 Press F2 Do Self Cal A message appears on the Self Cal display asking you to remove all cables and probes from the GDS 122 Self Calibration Remove all probes amp cables from CH1 CH2 Press lt Do Self Cal gt for Calibration Press any key to quit 3 After removing all cables press F2 Do Self Cal again Self Cal The self calibration automatically starts and a message appears showing that the calibration is Self calibration ongoing 51 GW INSTEK GDS 122 User Manual 4 When the message disappears in 5 minutes the calibration is completed To interrupt Press any key during calibration calibration Running the probe calibration Overview The attached probe contains a calibration point at the end to adjust the waveform Procedures 1 Select a rectangular waveform as the signal input Use the Autoset function and put the waveform in the middle of the display f 1 005KH2Z if 1 00SKHZ 2 Adjust the probe calibration point to make sure that the waveform edge remains flat Over Optimum Under compensation compensation 52 GW INSTEK Using the Oscilloscope Saving Recalling Overview The GDS 122 can save or recall four sets of waveform
49. he instrument and when keeping it in storage Read the following before any operation to ensure your safety and to keep the instrument in best condition Safety Symbols These symbols may appear in this manual or on the instrument T Warning Identifies conditions or practices that WARNING could result in injury or loss of life A Caution Identifies conditions or practices that CAUTION could result in damage to the instrument or to other properties DANGER High Voltage Attention Refer to the Manual Protective Conductor Terminal Earth ground Terminal HOBID Safety Guidelines General e Do not place heavy objects on the instrument Guidelines e Avoid severe impacts or rough handlings that A may damage the instrument CAUTION Avoid discharges of static electricity onto or near the instrument e Do not insert bare wires or metal objects into the terminals e Do not apply input voltage more than 42V peak 30Vrms to the instrument GW INSTEK Power Supply AN WARNING Cleaning the instrument Operation Environment Safety Instructions Do not perform measurements at a power generating source or building installation site see note below The instrument should only be disassembled by a qualified technician Measurement categories EN 61010 1 2001 specifies the measurement categories and their requirements as follows This instrument falls under category l Measurement category IV is for me
50. he display Freezing the To freeze the measurement press the measurement RUN STOP key The measurement result will be retained and the indicator at the top right corner of the display changes to STOP To unfreeze press the RUN STOP key again GW INSTEK GDS 122 User Manual Measuring Continuity Conditions lt 50Q beeping Panel operations 1 Press the R switch If a warning message appears press any key to o iyi resume measurement 2 Press the AUTOSET key repeatedly to select the continuity measurement 3 The continuity measurement screen appears Battery level Run Stop Manual range Continuity Measurement unit Meter Jj S Scaling factor J A Measurement 2 a Q2 result F1 F3 menu not used 4 Connect the test leads to the black AN red terminals mA COM for the black lead aan 400vw oe V Q2 C for the red lead oe 5 If the GDS 122 confirms continuity the impedance is less than 50Q the beeper sounds Freezing the To freeze the measurement press the measurement RUN STOP key The measurement oe ole result will be retained and the indicator at the top right corner of the display changes to STOP To unfreeze press the RUN STOP key again 92 GW INSTEK Measuring Capacitance Continuity Range specifications Panel operations 1 Press the R switch If a warning Using the Multimeter 51 2nF to 100uF 3 3 digits message appears press any key to o xy
51. indicator at the top left corner of the display changes to AUTO 89 GW INSTEK GDS 122 User Manual Manual ranging To select the voltage range manually press F1 Manual The indicator at the top left corner of the display changes to MANUAL Freezing the To freeze the measurement press the measurement RUN STOP key The measurement result will be retained and the indicator at the top right corner of the display changes to STOP To unfreeze press the RUN STOP key again Hi Measuring delta To measure the delta value press F2 impedance I A The measurement result at the moment moves to the top right corner of the display and the measurement result becomes the difference between the original result 1 Press F2 2 Measurement 3 Delta value reset to zero displayed N RUN 120 0kO 90 GW INSTEK Using the Multimeter Measuring Diode Range OV to 1 5V Panel operations 1 Press the R switch If a warning message appears press any key to o iyi resume measurement 2 Press the AUTOSET key repeatedly to select the diode measurement 3 The diode measurement screen appears Battery level Run Stop Manual range Diode Measurement unit Meter Scaling factor Measurement result F1 F3 menu not used 4 Connect the test leads to the black AN red terminals A COM for the black lead 400V A V Q C for the red lead COM Q 5 The measurement result will be constantly updated in t
52. ing and waits for the next trigger command Horizontal scale div 5ns 100ms 5s Status icon when triggered P Gian J auTO f Status icon when not triggered Ready Press F5 Coupling repeatedly to select AC the trigger coupling LF Rjc HF Rjc e AC triggers only on the AC portion of the waveform DC Coupling e DC triggers on the whole waveform AC DC e LF Rjc filters out the lower frequency when triggering e HF Rjc filters out the higher frequency when triggering 31 GW INSTEK GDS 122 User Manual Configuring trigger settings video triggering Overview Selecting the trigger polarity The video trigger type is designed to capture the video signal format NTSC PAL or SECAM For any other signal type use the edge trigger e For general trigger settings see page26 e For edge triggering details see page29 To select edge triggering follow these steps 1 Press the MENU key and use the Up Down keys to select TRIG MODE menu 2 Press F1 Type to select the video trigger type Video TRIG MODE TYPE OD Polarity Selects the polarity of synchronization signal Normal means the black level is low Invert means the black level is high Source Selects the signal source channel CH1 or CH2 Sync Selects the part of the video signal used for synchronization line or field Press F2 Polarity repeatedly to select Inverted the polarity of synchronization signal
53. ion settings details see page29 Example Average off Average 16 49 GW INSTEK GDS 122 User Manual Viewing variations in a signal Overview Using the persistence display function you can define sets how long the old waveforms remain in the display allowing observation of waveform variations You can select the persistence time from 1 2 and 5 sec When choosing the Infinite mode the GDS 122 keeps all past traces of the displayed waveform Panel operations 1 Press the MENU key and use the Up Down keys to select DISP SET menu 2 Press F2 Persist repeatedly to select the persistence time Infinite 1 2 5 sec OFF DISP SET For other display settings details see page36 OD Example Persistence off Persistence infinite f 1 117 KHZ CH2 OFF CH1 0 04 divs LEFT RIGHT Time Base UP DOWN CH1 ee i Omv CH2 LOOn 50 GW INSTEK Using the Oscilloscope Calibration Overview Two types of calibrations are available self calibration and probe calibration The self calibration automatically adjusts GDS 122 internal parameters The probe calibration adjusts the probe capacitance You should run both whenever using the GDS 122 in a new environment Running the self calibration Overview The self calibration function automatically configures internal parameters to maintain the sensitivity and accuracy Run the self calibration in the following cases e When the temperature
54. m page45 e Trigger settings configuration page24 GW INSTEK GDS 122 User Manual Viewing signal peaks Overview Using the peak detect acquisition mode the maximum and minimum data in the sampling interval are displayed capturing the rapid changes and sudden peaks that might spontaneously occur in a waveform Note Since the peak detect mode picks up the most extreme data the waveform becomes noisier than the normal acquisition mode sampling mode Panel operations 1 Press the MENU key and use the Up Down keys to select ACQU MODE menu 2 Press F2 Peak Detect to activate the peak detect mode Peak For other acquisition settings details see page29 OD Example Peak detect off Peak detect on 48 GW INSTEK Using the Oscilloscope Viewing noisy signals Overview Using the Average acquisition mode you can smooth out the displayed waveform by averaging multiple data samples The number of averaging is selectable from 4 16 64 and 128 Note e In order for the average mode to work in the best way the waveform must be repetitive e As the number of averaging increases the slower the waveform update becomes Panel operations 1 Press the MENU key and use the Up Down keys to select ACQU MODE menu 2 Press F3 Average to activate the average mode 3 Press F4 Averages repeatedly to select the number of averaging 4 128 N 64 ACQU MODE Average Us Averages For other acquisit
55. meter Panel operations 1 Press the power switch The welcome screen with the corporate logo appears on the display 2 To adjust display brightness use Ts the switch on the side up bright SEE or down dark 3 Press any key example MENU Example key to activate the display The battery icon at the top left corner of the display shows the battery level gt 75 75 50 25 lt 25 If the oscilloscope screen appears press the DMM OSC key and change the mode to multimeter 4 Press A current V voltage or R impedance diode continuity Cv_ capacitance switch to proceed A warning message might appear to remind you of correct connections Press any key to make sure 5 Press any key to cancel the warning message and resume the measurement 84 GW INSTEK Using the Multimeter Measuring Voltage DC voltage Range 400mV 4V 400V specifications Acara 1 1 digit details page98 igit Max input 400V AC voltage Range 4V 40V 400V specifications Accurac 1 3 digit details page98 4 ce Max input 400V Frequency 40Hz to 400Hz Panel operations 1 Press the V switch to select the Voltage measurement Ifa warning y message appears press any key to resume measurement 2 The voltage measurement screen appears Battery level i A N ii Run Stop 83 60mV Auto Manual Delta range measurement result DCV ACV Measurement unit Meter Scaling factor Measuremen
56. n MENU keys 2 Select the acquisi Sample Peek average tion mode from F1 22 P Detect_ Average Sample to F3 Average For the Average mode also press F4 Averages repeatedly Averages to select the number of averaging 4 16 64 or 128 Example Sample Peak detect Average 16 34 GW INSTEK Using the Oscilloscope Selecting the language Overview You can switch the menu language between English and Simplified Chinese The language settings affect the following areas e Menu bar right side of the display e F1 F5 menu bottom of the display e System settings screen page37 Parameters English default Simplified Chinese Panel operations 1 Press the MENU key and select the FUNCTION menu using the Up Down keys MENU 2 Press F3 Language HX repeatedly to select the language from English or Simplified Chinese For other menu items see the following F1 Recall factory factory settings page53 F2 Do Self Cal self calibration page51 Note Recalling the factory settings Function menu F1 does not change the language selection 35 GW INSTEK GDS 122 User Manual Configuring display settings Overview The display settings configure how the waveforms are drawn in the display vector drawing The vector drawing mode shows the waveform as a smooth line connecting each data point dot drawing The dot drawing mode shows the waveform as a collection of in
57. n this manual in an alphabetical order GW INSTEK Using the Oscilloscope USING THE OSCILLOSCOPE This chapter describes the oscilloscope functionalities in the GDS 122 setting it up and measuring simple waveforms using advanced measurement functions and configuring the system settings The menu tree section at the end gives you an overview of all functionalities and a quick access to each of them For the multimeter functionalities see page83 Basic OPEratiONsS ccccceececee ee ceeeceaeeeseneetaneetanessaneesas 16 Configurations vicnincntananecentiesecorsecsteemasdesarmmedememenieadme 21 Measurements ccc cece cece cece eee ceeen ee eeeneeseeeaeeseuneensoaes 39 Advanced ViICWINGS cceccceeeeeeeeeeseeeeeeeeeeetenneenenes 45 CaliDrati ON peresnavecdaust adie serusesendauedennumteascuaoredemssenurds 51 Saving RECAILING ccc cece ceeeee eee ee eee eeeeeeeaneeeeeeeeeeeeeas 53 Menu Tree Operation Shortcuts ccc cece eee e eee ees 56 USING the SOFTWALEC ccccccccceeeeeeeeeeeeteeeeeeseseeseeeneeaees 6 15 GW INSTEK GDS 122 User Manual Basic Operations Operation flow The Basic Operations section describes how to set up the GDS 122 and observe an input signal step by step 1 Powering up the GDS 122 Connecting an input signal Using the Autoset Introducting the display Aa W N Adjusting the scales 5 Adjusting the waveform position Advanced For more advanced or detailed
58. nal R switch V switch A switch Power switch F1 F5 keys Display contrast switch Freezes stop or unfreezes run the measurement DSO Automatically selects the horizontal scale vertical scale and trigger level according to the input signal See page18 for details Switches the measurement modes For details see page87 current page85 voltage and page89 impedance Switches the operation mode between oscilloscope and multimeter J 3 Accepts the CH1 and CH2 input signal Accepts the test leads for capacitor measurement Accepts the red lead for voltage small capacitance and impedance measurements Accepts the black ground lead Accepts the red lead for current measurement Selects the following measurement impedance page89 diode page91 continuity page92 capacitance page93 Selects voltage measurements page85 Selects current measurements page87 Turns on or off the GDS 122 power Selects menu items which appear in the bottom of the display Selects the display contrast Up bright or Down dark 13 GWINSTEK GDS 122 User Manual Manual Overview Overview Safety Instructions page6 Getting Started page9 Using the Oscilloscope pagel 5 Using the Multimeter page83 Faq page95 Specifications page9 7 Declaration of conformity pagel 00 Index pagel01 14 This user manual is separated in seven chapters
59. ncel to exit the wizard 7 The software installation automatically starts and ends Click Finish to complete installation F DS Wave InstallS hield Wizarc InstallShield Wizard Completed The InstallShield Wizard has successfully installed DS_Wave Click Finish to exit the wizard Installing the software is completed 63 GW INSTEK GDS 122 User Manual Modifying Reinstalling Uninstalling the software Overview After installing the software you can do the followings using the same setup file e Modifying the software components e Repairing the software e Uninstalling the software Steps 1 Activate the Setup exe Follow ey the same procedures as installing the software until the setup exe Program Maintenance window appears fF DS Wave InstallShield Wizard Program Maintenance Modify repair or remove the program roteneeseenenseenenenny koon a Change which program features are installed This option displays the a Custom Selection dialog in which you can change the way features are installed Repair installation errors in the program This option fixes missing or corrupt files shortcuts and registry entries A Remove DS_Wave from your computer g lnstallstiaiela lt Back cance 2 Select the action Modify the software components Repair the software or Remove uninstall the software and click Next Proceed according to the instructions
60. nual Vertical status F2 VERTICAL SYSTEM STATUS SCALE CH 2 00v SCALE CH 50 0mv POSITION CH 0 00 divs 0 0mv POSITION CH 0 00 divs 0 0mv COUPLING CH DC COUPLING CH PROBE CHI PROBE CH2 MATH CHI CH2 INVERTED CH1 INVERTED CH2 For details of each item see the following pages CH1 CH2 scale page21 CH1 CH2 position page21 CH1 CH2 coupling page21 CH1 CH2 probe page21 Math mode page39 CH1 CH2 invert page21 Trigger status F3 Edge trigger TRIGGER SYSTEM STATUS TYPE EDGE SOURCE CH1 SLOPE RISING TRIGMODE SINGLE TRIGGER COUPLING DC For details of each item see the following pages Trigger type page29 Trigger source page29 Trigger slope page29 Trigger mode page29 Trigger coupling page29 Trigger status F3 Video trigger TRIGGER SYSTEM STATUS TYPE VIDEO SOURCE CH1 POLARITY NORMAL SYNC LINE For details of each item see the following pages Trigger type page32 Trigger source page32 Trigger polarity page32 Trigger sync page32 Misc status F4 MISC GW INSTEK Series Number W102206150095 38 The Misc status shows the manufacturer name and the serial number GW INSTEK Using the Oscilloscope Measurements Overview The advanced measurement functions allow you to automatically measure various parameters in a waveform Measurement e Waveform math page39 ters e Automatic measurements page4l e Time cursor m
61. oom in and out OK Cancel Default 2 Set the borderlines print margins The range is 0 to 10 0cm each 80 GW INSTEK Using the Oscilloscope 3 Select the View Setting Redraw graph according to sample data The GDS 122 refreshes the waveform and adjust its scale before printing The most recent data can be taken but might take time for refreshing Graph zoom in and out The existing waveform is used with its scale adjusted Since retrieving the data is not involved fast printing is ensured Open the print preview by File View For selecting File gt Print Preview from the menu or clicking the Print Preview icon on the toolbar Make sure that the waveforms are placed appropriately E Open Page Setup Print Preview Printing out Print out the waveform in one of the following ways e Selecting File gt Print in the File Miew Print Preview screen menu Page Setup Selecting File gt Print from the File Wiew For software menu Cer Page Setup Print Preview Pressing the shortcut keys Ctrl P Clicking the Printer icon on the Toolbar 81 GWINSTEK GDS 122 User Manual Accessing the Help Overview The Help file describes how to install and use the software The About screen shows the software version Opening the Open the Help in separate file using one of the Help following methods e Selecting Help gt Help from the Help menu e Clicking the
62. operations see the Operations following chapters e Configurations page21 e Measurements page39 e Advanced Viewings page4s e Calibrations page51 1 Powering up the GDS 1 22 1 Pressing the Press the power switch The welcome power switch screen with the corporate logo appears on the display To adjust display brightness use the ak switch on the side up bright or Oe Wy down dark a 2 Activating the Press any key for example the MENU Example oscilloscope key to enter the oscilloscope mode See the battery level icon at the top left Mend corner of the display and connect the power cord if the level is lt 25 gt 75 75 50 25 lt 25 Switching the If the multimeter screen appears operation mode press the DMM OSC key and change the mode to oscilloscope GW INSTEK Using the Oscilloscope Tilt standing the Use the bar at the back of GDS 122 the GDS 122 to tilt stand it on a horizontal plane Note If pressing the power switch does not turn on the GDS 122 the battery may need recharging Connect the GDS 122 to the AC adaptor and recharge it for at least 15 minutes 2 Connecting an input signal 1 Connecting Connect the probe s between the DUT Device the probe Under Test and the CH1 2 inputs on the GDS 122 2 Setting the To prevent excessive input voltage we probe recommend you to set the probe attenuation level attenuation to the X 10 position to prevent excessive volt
63. or measurements position right OPTIO position left Overview The voltage cursor function measures and updates ave the the following five types of voltage difference cursor down e Between cursor 1 and cursor 2 yz a e Between cursor 1 and CH1 center point a Overview Cursor Cursor e Between cursor 2 and CH1 center point CH1 cursor 2 e Between cursor 1 and CH2 center point e Between cursor 2 and CH2 center point Source signal CH1 input CH2 input o V2 center Voltage cursor 1 Make sure the waveform appears V1 center panel operations IVI V2 2 Press the MENU key and select the CURS MEAS menu Cursor 2 using the Up Down keys MENU menu 43 44 GW INSTEK Using the Oscilloscope Advanced Viewings Overview The advanced viewing functions allow you to clearly observe specific type of waveforms and or particular characteristics in a waveform Viewing items e Waveform zoom page45 e X Y format page47 e Signal peaks page48 e Noisy signals page48 e Variations in a signal page49 Zooming waveforms horizontally Overview By using the zoom function you can magnify the waveform in the horizontal direction Panel operations 1 Make sure that the waveform appears in the display 2 Press the MENU key and select the TIME MODE menu using the Up Down keys MENU 3 Press F2 Set Window A set of cursors appears in the Window center of the display Zoom window Up 3 2400 U 1 4400 Lii See ees Sees
64. ow E GW INSTEK x gt Changing the waveform scales Using the Oscilloscope 2 Hold the mouse and drag the waveform sideways La Changing the vertical position Click the channel label at the left side of the waveform and drag the waveform up or down Before changing the scales make sure that the correct waveform is selected highlighted in the lower left corner of the screen example CH1 A 500v fi chz 25045 200 j1 Oa 5 nS 200m fi Changing the horizontal scale chi TimeBase Select the horizontal scale using the list at the right side of the scale Position screen You can select the scale either by searching in the Scale column or by clicking the Position arrows Scale Pros 1O0US 73 GW INSTEK Viewing the automatic measurement results 74 GDS 122 User Manual Changing the vertical scale chi Voltage Select the vertical scale using the list at the right side of the screen You can select the scale either by searching in the Scale column or by clicking the Position arrows Scale Position Scale Pos Scale Fos Scale Pos Before viewing the measurement results make sure that the correct waveform is selected highlighted in the lower left corner of the screen example CH1 The measurement result chi is updated in the lower Period 0 82 m5 right corner of the Freq 1 212 KH screen Three parameters py py 43 200 are listed i
65. p exe 2 The language selection window appears Select the software language and click OK you can later change the language manually English Simplified Chinese gt A e E w LL a 3 The software starts preparing the installation When the welcome window is displayed click Next and start installing the software to your PC DS Wave InstallShield Wizard Welcome to the InstallShield Wizard for DS_Wave The InstallShield R Wizard will alow you to modify repair or remove DS_Wave To continue click Next 4 The customer information window will appear Enter the user name and organization name Select which user will hold the right to access the software and click Next 62 GW INSTEK Using the Oscilloscope DS Wave Installshield Wizard Customer Lior ation Fiesse enter your infermaton ans User Name 305 122 User User Name Soe Wi retumis Organization Administration 5 Change the installation directory if necessary and click Next DS Wave InstallShield Wizard x Destination Folder u Click Next to install to this folder or click Change to install to a different folder Install DS_Wave to C Program Files GoodWill GDS 122 Ready to Install the Program lt SY The wizard is ready to begin installation ha Click Install to begin the installation If you want to review or change any of your installation settings click Back Click Cancel i Ca
66. r zero point e Between cursor 2 and center zero point Time cursor 1 Make sure that the waveform appears panel operations 2 Press the MENU key and select the CURS MEAS menu using the Up Down keys MENU 3 Press F1 Type repeatedly to select the Time cursor The Type cursors appear as vertical purple lines located at the center of the display 4 Press the OSC OPTION key OSC repeatedly until the following QPTIO menu appears LEFT RIGHT Time ot ap ay UP DOWN Cursor UP DOWN Cursor 1 or Cursor2 5 Use the arrow keys to move the cursor or horizontal position 42 GW INSTEK Using the Oscilloscope GW INSTEK GDS 122 User Manual Move the 3 Press F1 Type repeatedly to cursor left select the Voltage cursor The Type A cursors appear as horizontal Move the Move the purple lines located at the horizontal horizontal ee position right position left center of the display V 4 Press F2 Source repeatedly Move the to select the source channel source cursor right TI TO T2 Display overview Cuar eene Curcer 5 Press the OSC OPTION key CH1 cursor 2 repeatedly until the following QPTIO menu appears LEFT RIGHT Time ion gee UP DOWN Cursor V1 F UP DOWN Cursor Ve or Cursor V2 T2 TO time TITO ume 6 Use the arrow keys to move the cursor or P F Seco horizontal position Cursor 2 Move the ee cursor up Move the Move the horizontal OSC horizontal Running voltage curs
67. s settings Get Data Acquiring the GDS 122 display snapshot When the Bitmap format is selected in the GDS 122 display carry setting the software acquires the display snapshot bmp at the moment Save the file in the local folder and use a graphic software to open and edit it Acquiring the GDS 122 waveform When the Vectors format is selected in the GDS 122 display carry setting the software acquires the waveform data bin at the moment 1 The waveform data will be stored in the PC memory to allow to be recalled later page79 Edit the location and click Start File receive from USB Receiving DO 08031 339 bin Storing as C Program Filef DS_ WAVE dat D0708031 339 bin Browse File 2 The waveform appears in the software screen Ele View Format munications Langage Heb SAS NRE 420 Connecting the GDS 122 to the software is completed 67 GW INSTEK GDS 122 User Manual Configuring the screen Overview This section introduces how to configure the following parameters in the software screen waveform viewing mode to optimize the user interface e Background color e Drawing format e Grid color e Language e Grid on off e Closing the software Screen overview Tool bar amp Icons Ele View Format Communicators Langage H oOo MMe iti 74 CH1 ms e Cursor type Ce Tree ceda pogon Horizontal pos St ccale c
68. s using its internal memory When you need to reset the system recall the default factory installed settings Save recall items e Recalling default settings paged3 e Saving waveforms paged4 e Recalling waveforms paged5 Recalling the default settings Recalling the default settings Trigger CH1 amp CH2 You can recall the default factory settings by pressing the MENU key then selecting FUNCTION gt F1 Recall Factory Recall Men f FUNCTION v FT Type Edge Slope Rising Source CH1 Mode Auto Coupling AC Coupling AC Channel ON Probe scaling 1 X Invert OFF Cursor Acquisition Time mode Display Wave Save Channel CH1 Average number 16 Cursor OFF Mode Sample Mode Main timebase Persistence OFF Carry Bitmap Type Vector Format YT Source CH1 Display OFF Waveform A 53 GWINSTEK GDS 122 User Manual Saving waveforms Overview Memory Source Panel operations 54 Up to four waveforms can be stored in and recalled from the GDS 122 internal memory The stored waveform can be used for reference comparison XXXXXXXxXxX Four memories waveform A B C and D CH1 CH2 Math waveform 1 Make sure the waveform you want to save CH1 CH2 or Math result appears in the display For Math operations details see page39 2 Press the MENU key and N select the WAVE SAVE menu Q using the Up Down keys 3 Press F1 Source repeatedly and select the
69. st Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com 100 GW INSTEK Index AC coupling channel TET OTs EE E E EE E E 31 edge Epei snucie 30 veroa les 23 OUT GE E E E 22 ACA m limeter sesuunan 87 video trigger SOULCE seese 33 speciticatigrS sasoiean 99 Chinese language selection 35 AC DC adaptor senscscacesccpnsnnctcanesisentues 10 contents of package esee 10 elua Er ATE p APE E 34 continuity multimeter 92 Short OUl essan 58 specification Sesini 99 SY LEDT SLACUS onin 37 coupling ACV multimeter sscarentsncewiierucesoetsrersis 85 gy Steni SA a 38 specihicalons ascaris 98 E CT ss cccstoe vss satansiehasnasaseemncsenuedeastt 31 addition math mode eee eee 39 vertical ee oa nee oe ae a ard 23 auto ranging cursor measurement impedance multimeter 89 IPG SON WANE oprni a eerie 75 voltage multimeter 86 SHOT CHS enan 97 atto trigger MOMS sccmacsaseancocasiavinccaoes 30 DONE e 42 AUTO trigger statuS eee 26 VON CC asne 43 automatic measurements 004 41 cycle rms automatic measurement 41 SHOTICU LS cerana 57 data point SLOPE senesinin 77 AUtOSEet ices to cGenenccdeetctanemoscnerveentbanconannexe 18 data table PC software 77 capacity multimeter 93 DC coupling continuity multimeter 92 MICE E cceanaee eon 31 diode multimeter 91 VOT UIC caxdeseccseasesdvecaouivsesateuavdicovexsacs 23 impe
70. t result F1 F3 menu 3 Press the AUTOSET key repeatedly to select DC or AC voltage measurement 4 Connect the test leads to the black red terminals E COM for the black lead 400 V Q C for the red lead on mee 5 The measurement result will be constantly updated in the display For more detailed settings see the following instructions 85 GW INSTEK GDS 122 User Manual Auto ranging Manual ranging Freezing the measurement Measuring delta voltage 1 Press F2 86 To let the GDS 122 select the voltage range automatically press F3 Auto The indicator at the top left corner of the display changes to AUTO To select the voltage range manually press F1 Manual The indicator at the top left corner of the display changes to MANUAL To freeze the measurement press the RUN STOP key The measurement result will be retained and the indicator at the top right corner of the display changes to STOP To unfreeze press the RUN STOP key again Hi To measure the delta value press F2 I A The measurement result at the moment moves to the top right corner of the display and the measurement result becomes the difference between the original result 2 Measurement 3 Delta value reset to zero displayed GW INSTEK Using the Multimeter Measuring Current DC current Range amp 40mA 1 1 digit specifications Accuracy 400mA 1 5 1 digit details page98 20A
71. the trigger level e If the trigger mode is Single press the RUN STOP key to trigger the waveform or switch the trigger mode to Normal See page29 for trigger details Slow update in Q It takes 30 to 40 seconds for the multimeter to the multimeter update the capacitor measurement A It takes longer time to measure small capacitors 30 to 40 seconds are normal for measuring 5nF or smaller capacitors See page93 for capacitance measurement details Slow update in Q The display response to the waveform change the oscilloscope is unusually slow A Slow response is normal in the following cases e Average sampling mode is being selected page21 e Display persistence is being selected page36 Language Q Iwant to switch the language from Chinese to English or vice versa A Press the menu key and select FUNCTION or SHERI using the Up Down keys then press F3 Language F See page35 for details GW INSTEK Specifications SPECIFICATIONS Conditions for The following specifications are applicable when specifications these two conditions are met e The GDS 122 has been powered up for at least 30 minutes during which temperature fluctuation is no more than 5 degrees Celsius e The probe attenuation is set to X 10 Oscilloscope specifications Sampling Mode Normal Peak detection Average Rate 100 MSa s Input Coupling DC AC Impedance 1IMO 2 in parallel with 20pF 3pF Probe 1X 10X 100X
72. tings page36 e System status only for viewing page37 Configuring channel vertical settings Overview The channel settings configure how the waveform appears in terms of vertical or voltage scale Position Sets the vertical position of the waveform Scale Sets the vertical scale volts per eraticule Range 5mV div to 5V div CH on off Turns the channel on or off Coupling Selects AC or DC coupling The DC coupling shows all signal elements while the AC coupling filters out the DC component from the waveform Inversion Flips the waveform upside down Magnifica Magnifies the displayed units does not tion magnify the real signal The magnification function is useful to align the displayed with probe attenuation pagel7 especially X10 21 GWINSTEK Setting the 1 vertical position GDS 122 User Manual Press the OSC OPTION key repeatedly until the following ma menu appears on the display 3 OPTIO P LEFT RIGHT Time UP DOWN CH1 or CH2 Zero EF T RIGHT Time p DOI Hz Zero CHa 1 00 Use the Up Down key to change the vertical position Setting the 1 vertical scale Press the OSC OPTION key repeatedly until the following menu appears on the display D OPTI E O LEFT RIGHT Time Base UP DOWN CH1 or 2 Vol EFT RIGHT Time Base ef An 7 L 1 Use the Up Down key to change the vertical scale Turning the 1 channel on off 2
73. ve Select the data to be saved from the Save column Ej sequence sequence the identification cht number for each data point gd e ch1 ch2 CH1 and CH2 waveform F 4 data vB A B C D the waveforms stored gd in the GDS 122 hardware F D memory Data points stored in an Excel sheet example sequence chl ch2 A B C D Alll B c iiD E F GH 1 Units m EA chi 1 ch2 1 Aft Bil Cf 3 1 600 3440 4 2 600 3360 5 3 600 3440 6 4 600 3360 Click the Save As button to save the data into a directory The 58W AS standard Save dialog appears O F To close the Data Point dialogue do one of the following actions Press the Ctrl Alt key Click the Exit icon Exit Click the Close icon at the top right corner of the dialogue o x J GW INSTEK Using the Oscilloscope Recalling waveforms Overview You can recall the waveforms from the PC in two ways For details of saving them see page77 e Recalling waveform data bin file for viewing in the software e Recalling data points txt file for data analysis such as in graphs and maps For details of recalling waveforms into the GDS 122 hardware see page55 Recalling the 1 Select File gt Open from the Eile View Format waveform data menu or press the shortcut Open Hee key Ctrl O 2 The File Open dialogue opens Select one of the SPB bin file bin and click OK 3 The waveform s will be re
74. with the letter N or coloured Blue or Black The wire which is coloured Brown must be connected 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 cable of 0 75mm2 should be protected by a 3A or 5A fuse Larger conductors would normally require 13A types depending on the connection method used Any moulded mains connector that requires removal replacement must be destroyed by removal of any fuse amp fuse carrier and disposed of immediately as a plug with bared wires is hazardous if a engaged in live socket Any re wiring must be carried out in accordance with the information detailed on this label GW INSTEK Getting Started GETTING STARTED This chapter gives you an overview of what the GDS 122 is about what items are included in the package and how the user manual is organized After opening the GDS 122 package check the contents referring to the Package Contents section then learn the features and interface reading the Main Features and Front Panel and Keys Overview section The Manual Overview section gives you an overall picture of what each chapter is about helping you directly jump to the relevant location Package Contents
75. y e Trigger mode Auto Free run Single shot Anite o Edge Video eee SWITC RUN STOP key 2 cursors R ewitch AUTOSET key e 5 automatic measurements alk DMM OSC key e 4 display image memories terminal Oscilloscope CH1 CH2 e Self calibration function terminal Multimeter e Volts Amps Ohms Continuity Diode Capacitance measurement O a terminal terminal terminal e 20A maximum amplitude Tue RNE meameneni Oscilloscope function Multimeter function e Isolated inputs between oscilloscope and AC adaptor plug Accepts the AC adaptor cord DC 8 5V 1500mA multimeter OOT USB port Accepts the USB cable for PC connection Common e USB interface U N 3 8 inch color LCD display 320 x 240 resolution LCD display 3 8 inch 320 x 240 resolution color LCD display e 6 hours running time Li ion battery OSC OPTION key Sets the following parameters vertical 180mm x 113mm x 40mm compact size Arrow keys level and scale page21 horizontal level l l and scale page24 trigger level page24 e 690g light weight and cursor position page42 MENU key DSO Activates the side menu and selects the Up Down keys menu items RUN STOP key DSO Manually turns on run or off stop the trigger For details see page24 GW INSTEK Getting Started Oscilloscope function Multimeter function RUN STOP key AUTOSET key DMM OSC key CH1 2 terminal CX terminal V Q terminal COM terminal mA termi

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Digital Oscilloscope & Multimeter