Gw-instek GDS-122 User Manual User Manual

Digital Oscilloscope & Multimeter GDS-122 USER MANUAL GW INSTEK PART NO. ISO-9001 CERTIFIED MANUFACTURER  2012editionThis manual contai

Using the Oscilloscope 19 Example Before After22B4. Introducing the display contents Trigger statusVertical center positionVertical scaleTrigger le

Using the Oscilloscope 21 24B6. Adjusting waveform positions Selecting the menu PresstheOSCOPTIONkeyrepeatedlyuntilthefollowingmenuappears

Using the Oscilloscope 23 Setting the vertical position 1. PresstheOSCOPTIONkeyrepeatedlyuntilthefollowingmenuappearsonthedisplay.–

Using the Oscilloscope 25 MENUCH1 SETUPCH2 SETUPOFFInvertedONF4 Invert off Invert on Selecting the magnification 1. PresstheMENUkeyandusethe

Using the Oscilloscope 27 27BConfiguring trigger settings: general settings Overview Thetriggersettingsconfigurehowtheincomingsignalistrigg

Using the Oscilloscope 29 Usethearrowkeystochangethetriggeringposition.Move the trigger point upMove the trigger point downMove the trigge

Using the Oscilloscope 31  Example: falling edge Triggering pointFalling edge Selecting the source channel PressF3(Channel)repeatedlytoselect

Using the Oscilloscope 33 29BConfiguring trigger settings: video triggering Overview Thevideotriggertypeisdesignedtocapturethevideosignal

Using the Oscilloscope 35 30BSelecting the acquisition mode Overview Theacquisitionmodespecifieshowtheincominganalogsignalisdigitallysamp

Using the Oscilloscope 37 32BViewing the system status Overview ThesystemstatusmenushowstheGDS‐122systemsettings.Panel operations1. Press

TABLE OF CONTENTS 3 TABLE OF CONTENTS Safety Instructions...6 Getting Started...

Using the Oscilloscope 39 6BMeasurements Overview Theadvancedmeasurementfunctionsallowyoutoautomaticallymeasurevariousparametersinawave

Using the Oscilloscope 41 34BRunning automatic measurements Overview Theautomaticmeasurementfunctionmeasurestheinputsignal’scharacteristics

Using the Oscilloscope 43 Move the cursor leftMove thecursor rightMove the horizontal position leftMove the horizontal position right Display overv

Using the Oscilloscope 45 7BAdvanced Viewings Overview Theadvancedviewingfunctionsallowyoutoclearlyobservespecifictypeofwaveformsand/or

Using the Oscilloscope 47 38BViewing waveforms in X-Y format Overview TheX‐YformatplotstheCH1inputasX‐axisandCH2inputasY‐axis.Thisdis

Using the Oscilloscope 49 40BViewing noisy signals Overview UsingtheAverageacquisitionmode,youcansmoothoutthedisplayedwaveformbyaveragi

Using the Oscilloscope 51 8BCalibration Overview TheselfcalibrationautomaticallyadjuststheGDS‐122internalparameters.Theprobecalibrationa

Using the Oscilloscope 53 9BSaving/Recalling Waves and Settings Overview TheGDS‐122cansaveorrecallfoursetsofwaveformsusingitsinternalme

Using the Oscilloscope 55 46BRecalling waveforms Overview UptofourwaveformscanbestoredinandrecalledfromtheGDS‐122internalmemory.Thes

Using the Oscilloscope 57 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

TABLE OF CONTENTS 5 Measuring Voltage ... 85 Measuring Current ...

Using the Oscilloscope 59 Select line display DISP SET→F1(Type) Select persistency DISP SET→F2(Persist) Select display format DISP SET→F3(Format) Se

Using the Oscilloscope 61 11BUsing the Software Overview TheGDS‐122PCsoftware,includedintheCD‐ROM,allowsyoutoviewthewaveformsinyourf

Using the Oscilloscope 63 ChangetheinstallationdirectoryifnecessaryandclickNext. ClickInstalltostartinstallingthesoftware.

Using the Oscilloscope 65 61BActivating the software and connecting the GDS-122 Overview ActivatethesoftwareandconnecttheGDS‐122toitproperl

Using the Oscilloscope 67 Acquiring data Inthesoftware,selectCommunications–GetDatafromthemenu.Alternatively,youmayclicktheGetdata

Using the Oscilloscope 69 Turning the grid on or off Toturnonoroffthegrid,selectView>GridlinesfromthemenuorclicktheGridlinesic

Using the Oscilloscope 71 63BViewing the waveforms Overview Thissectionintroduceshowtomodifythewaveformsettingsforbetterviewings. • Se

Using the Oscilloscope 73 2. Holdthemouseanddragthewaveformsideways. Changing the vertical position Clickthechannellabelattheleft

Using the Oscilloscope 75 64BUsing the cursor measurements Overview Thissectionintroduceshowtousecursormeasurementsinthesoftwarescreen.

Using the Oscilloscope 77 65BSaving waveforms Overview YoucansavethewaveformsintothePCintwoways.Fordetailsofrecallingthem,seepage19

Safety Instructions 7 • Donotperformmeasurementsatapowergeneratingsourceorbuildinginstallationsite(seenotebelow).• Theinstrument

Using the Oscilloscope 79 66BRecalling waveforms Overview YoucanrecallthewaveformsfromthePCintwoways.Fordetailsofsavingthem,seepage

Using the Oscilloscope 81 3. SelecttheViewSetting. Redraw graph according to sample data: TheGDS‐122refreshesthewaveformandadjustits

Using the Multimeter 83 USING THE MULTIMETER ThischapterdescribesthemultimeterfunctionalitiesintheGDS‐122.Functionalitiesincludesthreema

Using the Multimeter 85 13BMeasuring Voltage DC voltage specifications (details: page206H98)Range Accuracy Max input 400mV,4V,400V±(1%+1digit)

Using the Multimeter 87 14BMeasuring Current DC current specifications (details: page208H98)Range & Accuracy Max input 40mA±(1%+1digit)400

Using the Multimeter 89 15BMeasuring Impedance Impedance specifications (details: page210H98)Range & Resolution 400Ω±(1%+3digits)4k,40k,4

Using the Multimeter 91 16BMeasuring Diode Range 0Vto1.5VPanel operations1. PresstheRswitch.Ifawarningmessageappears,pressanykeyto

Using the Multimeter 93 18BMeasuring Capacitance Continuity specifications Range 51.2nFto100uF±(3%+3digits)Panel operations1. PresstheRsw

Faq 95 FAQ Power Q • TheGDS‐122doesnotpowerup.• TheGDS‐122stoppedworkingafterashortperiodoftime. AThebatterymayneedrechar

Specifications 97 SPECIFICATIONS Conditions for specifications Thefollowingspecificationsareapplicablewhenthesetwoconditionsaremet:• Th

Getting Started 9 GETTING STARTED ThischaptergivesyouanoverviewofwhattheGDS‐122isabout,whatitemsareincludedinthepackage,andhow

Specifications 99 400mA range: 100uA 20A range: 10mA ACA Accuracy 40mA range: ±1.5%±3 digit 400mA range: ±2 %±1 digit 20A range: ±5%±3 digits Res

Index 101 INDEX ACcouplingtrigger ... 32vertical... 24ACAm

Index 103 operationenvironment... 7OSCoptionkey... 60oscilloscopespecifications ...

Getting Started 11 1BMain Features Oscilloscope • Dualchannel• 20MHzbandwidth• 100MS/sreal‐timesamplingrate• ≤17.5nsrisingtime• 5

Getting Started 13 MENU key + Up/Down keys DSO Activatesthesidemenuandselectsthemenuitems.RUN/STOP key DSO Manuallyturnson(run)oroff

Using the Oscilloscope 15 USING THE OSCILLOSCOPE ThischapterdescribestheoscilloscopefunctionalitiesintheGDS‐122:settingitupandmeasuring

Using the Oscilloscope 17 powercordifthelevelis<25%. > 75% 75% 50% 25% < 25% Switching the operation mode Ifthemultimetersc