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Summary of Contents for 222

Page 1: ...HANDHELD 222 DIGITAL STORAGE OSCILLOSCOPE ...

Page 2: ...S MANUAL 070 71 00 00 PRODUCT GROUP 40 HANDHELD DIGITAL STORAGE OSCILLOSCOPE OPERATORS Please Check for CHANGE INFORMATION at the Rear of This Manual First Printing DEC 1988 Revised DEC 1989 COMMITTEDTO EXCELLENCE ...

Page 3: ...edin any form without the written permis sion of Tektronix Inc Products of Tektronix Inc and its subsidiaries are covered by US and foreign patents andlor pending patents TEKTRONIX TEK and are registeredtrademarks of Tektronix Inc Printed in U S A Specificationand price change privileges are reserved ...

Page 4: ...Postal Service has the right to re test the series and to verify that it complies TEKTRONlX Bescheinigung des Herstellers lmporteurs Hiermit wird bescheinigt dap derldieldas 222 DIGITAL STORAGE OSCILLOSCOPE AND ALL INSTALLED OPTIONS in Qbereinstimmung mit den Bestimmungen der Amtsblatt Verfugiing 104611984 funkentstort 1st Der Deutschen Bundespost wurde das lnverkehrbringen dieses Gerates angezeig...

Page 5: ...es Gerat eingesetzt wird mup ebenfalls den Voraussetzungen nach Par 2 Ziff 1 der Vfg 104611984 genugen NOTICE to the userloperator The German Postal Service requires that this equipment when used in a test setup may only be operated if the requirements of Postal Regulation Vfg 104611984 Par 2 Sect 1 7 1 are complied with HlNWElS fur den BenutzerlBetreiber Deles Gerat darf in epaufbauten nur betrle...

Page 6: ... Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice ...

Page 7: ... Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice ...

Page 8: ... Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice ...

Page 9: ... Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice ...

Page 10: ... Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice ...

Page 11: ... Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice Qservice Hyperlinked Page Scroll Up or Down Left click to select Qservice ...

Page 12: ...indicates a personal injury hazard immediately acces sible as one reads the marking Symbols in this Manual A lndiwtes where applicable cautionary or other informationis to be found For maximum input voltage ratings see the Specifications Symbols as Marked on Equipment D A N G E R Highvoltage ATENTION Refer to manual DOUBLE INSULATED NO safety ground required Safety Grounding This instrumentisdoubl...

Page 13: ...SECTION 1 YOUR NEW OSCILLOSCOPE ...

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Page 15: ...0 MHz repetitive storage bandwidth Fully isolated dual vertical channels 5 mV to 50 V per division vertical deflection sensitivity 50 ns to 20 sec per divisiontime base On screen readouts Auto setup and auto level triggering Minimumtwo houroperatingtimewith afully chargedbattery Three hour recharge time with instrument off Auto time out when not in active use Envelope mode peak detect for glitch c...

Page 16: ...idth Sample Mode Single shot sampling RepetitiveMode Greater than 0 5p div 0 5 ps div or Less Peak Detect Mode ENV and CONT ENV Sine Wave Capture Pulse Width Amplitude Capture 512data points 50per division 8 bits 25 levels per vertical division 10 24 divisions dynamic range Hz Timebase The maximumsampling rate of 10 MHz is reached at a SEC DIV setting of 5 psldiv Hz Timebase 10 MHz The analog band...

Page 17: ...ncy derating curve 400 V dc peak ac to 1 kHz See Figure 8 2 for frequency derating curve 800 V dc peak ac 0 5 to 42 V peak If either theEXT TRIGCOMMconnectoror theRS 232 cable is connected to an external earth ground or external power is applied the oscilloscope chassis cannot be elevated Weight Without accessories Dimensions Length Height Width Battery Charger Adapter Battery 4 4 Ibs 2 kg 9 9 in ...

Page 18: ...mately 2 5 inches 1 3 STANDARD ACCESSORIES refer to Section 7 for part numbers The instrument is shippedwith the following standard accessories 1 Operators Manual 1 Quick ReferenceGuide 1 RS 232 InterfaceGuide 1 InstrumentCarryingPouch 1 Battery Charger Adapter wall transformer 1 Probe Accessories Kit 1 Cabinet Feet Accessory Kit 1 4 OPTIONAL ACCESSORIES refer to Section 7 for part numbers Spare B...

Page 19: ...SECTION 2 GETTING STARTE ...

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Page 21: ...totally portable operation of the oscilloscope is needed Use the appropriate battery charger adapter for the available power source voltage 115 Vae and 230 Vac The adapter plugs into the instrument s external power receptacle as shown in Figure 2 1 An optionalaccessory pouchto carryeitherthe battery charger adapter U S modelonly or a sparebatterymaybeordered seesection7f0r the part number The acce...

Page 22: ...geable using the battery charger adapter supplied with the instrument Operating time is at least two hours with a fully charged battery When the charge level reachesa pointthat only a short amountof operatingtime remains a low battery indicator kd is displayed inthe upper right corner of the readout The oscilloscope turns off automatically when the batteryvoltage drops below 7 32 V 2 2 REV JUN 198...

Page 23: ...ever the batterychargesfaster whenthe instrumentisnot operating Completely rechargethe batteryas soon as possible after each discharge cycle Refer to Section 6 para 6 11 for tips on battery care to extend the operating lifetime of the battery When storing the instrument for periods longer than two months fullycharge thebatteries thenremovethebatteries andstore them in a coolplace Storingpartiallyd...

Page 24: ...n battery power alone See Section 4 para 4 28 for operating instructions 2 8 VIEWING A SIGNAL QUICKLY Connect one or both of the probe tips to the signals to be viewed Press m his givesyou a quick setupof the front panel controlsto view the signals applied to the probetip s A channel that does not have a signal connectedis turned off except CH 1will not beturned off if neitherchannelhasa signal If...

Page 25: ...SECTION 3 WHAT THE CONTROLS DO ...

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Page 27: ...e Reference 1 CLEAR IRemoves menus andlor saved waveformsfrom the display 2 Control Name ON REV JUN 1989 3 1 Menu Selects 4 ICH1 ISelects CH 1 to respondto the Vertical controls A second press calls up the CH 1 couplinn menu Function Turns the oscilloscopeon and off 3 5 4 6 4 7 6 4 Reference Para 3 4 4 1 Selectsthe menuitemswhen oneof the control menus is displayed 3 4 4 3 ...

Page 28: ...the trig ger signal MODE Displaysthe TRIG MODE menu menu when lit lnner knob vertically positions the active channel trace 3 5 4 9 AUTO LVL PUSH AUTO SETUP Trigger LEVEL lnner button finds the trigger peaks and sets Trigger LEVELto midpoint when pressed Autoranges volts time and trigger to give the user a quick display of the signal at the probe tip Outer knob sets the trigger level 3 7 4 15 thres...

Page 29: ...ays the SETUP menu usedto STORE RECALL or ERASEfront panel setups Displays the TRIG POS menu Control Name SAVE 5 1 ACQ Calls up the menufor selecting acquisition mode Switches betweenSTORE and NONSTOREdisplay modes Function Displaysthe SAVE W V menus Reference Para 3 8 4 19 r FUNCT 7 1 DlSPL Calls up the auxiliary functions menu I Calls up the dis lav mode menu 13 8 4 11 REV JUN 1989 3 3 ...

Page 30: ...s display for best horizontal alignment with the graticule Figure Reference 1 2 3 4 5 REV JUN 1989 Control Name HORlZ ROTATION VERT ROTATION FOCUS INTEN TRIG COM Adjusts display for best vertical alignment with the graticule Adjusts for best display sharp ness Adjusts for best viewing intensity Provides common reference point for trigger si nals ...

Page 31: ...tion Point for the battery charger adapter Referent Para 3 9 Function Providesconnection point for applying external trigger signals Provides RS 232 inpuvoutput port for digital communication Figure Reference 6 7 REV JUN 1989 Control Name EXT TRIG INPUT COMM PORT ...

Page 32: ...en readout locations are keyed in Figure 3 4 Menus and waveform readoutsare shown superimposedin the illustration they are displayed separately in actual use The figure callouts corre spond to the figure references in Table 3 4 Figure 3 4 On screen readout locations REV JUN 1989 ...

Page 33: ...indicator for the latest recalled waveform SECIDIV readout for the latest recalledwaveform In X Y mode this location displays the VOLTSIDIV readout for the saved CH 2 waveform I 15 1 CHI i n u t cou lina indicator 13 14 16 1 Menu label Each menu has its own name for reference Variable VOLTSIDIV indicator for CHI CHI VOLTSIDIV readout The box indicatesthat CH 1will respondto vertical control change...

Page 34: ... and top panel controls is given in Section 6 3 4 CRT DISPLAY MENU BUTTONS AND POWER See Figure3 5 for the location of the following items CRT displaysthe waveforms menus andfront panel control readouts Parallaxviewingerrors are eliminatedbythe internally etched graticule lines on the face of the cathode ray tube crt The display is calibratedto the 4 cm by 5 cm 8 divisions by 10 divisions graticul...

Page 35: ...see Section 4 para 4 28 Buttons menu select used to make menu selections When control menus are displayed pressingthe bezel button next to the control menu choice selects that menu item and clears the menu from the display When menus are not dis played pressing the menu button labeled resets the acquisition for all trigger modes Button used to clear menus and storedwaveforms from the display Menus...

Page 36: ...ated and independently floatable The probes are permanently connected to the oscilloscope When not inuse they canbe storedinthe probepouchalongthe right side of the instrument A smallchannel identifierlabelis located onthe cable at the probe See para 6 12 for the useof the vari ous probe tip accessories provide with the oscilloscope Figure 3 6 Probes and Vertical controls REV JUN 1989 ...

Page 37: ...as for the CH but ton but for channel 2 VERTICAL POSITION and Variable VOLTSIDIV Control inner knob positions the selected channel vertically If the selected channel is OFF the effects of any control changes take effect when the trace is turned back on The position of stored waveforms are not affected by this control When held in and turned it is the Variable VOLTSIDIV control for the selected cha...

Page 38: ...visionto 20seconds per division XI0MAG decreasesthe time per division scaling by a factor of 10 The SECIDIV switch setting is displayed in the bottom line of readout There are default acquisition and display modes that are selected by the SECIDIV switch depending on the Trigger MODE in effect See the Supplementary Information in Sec tion 6 para 6 5 Horizontal POSITION Control inner knob used to mo...

Page 39: ...ch inner knob switchesbetweennormaland XI0 horizontal magnificationwhen pressed With XI0 MAG on the portion of the display at the center hori zontal graticule lineis expandedbytentimes WhenX10 MAG is on aXI0 character is seen inthe bottomlineof the readout and the SECIDIV readout reflectsthe horizontal scaling of the mag nified waveform display Button auto rangesonthe signals at the probetips when...

Page 40: ...enoughrangetotrigger onany portionof a signalthat iswithinthedynamicrangeof theverticalamplifier AUTO LVL PUSH Button finds the peak values of the trigger signal when pressed and sets the Trigger LEVEL setting at the midpoint of the trigger signal amplitude Trigger PLO rlButton switchesbetweentriggeringontherising slope or the falling slope of the trigger signal The selected slope isshown inthe bo...

Page 41: ...er source selectionwill be boxed in the menu Press the button repeatedly to cycle through the menu choices while leavingthemenudisplayed Youmayalso select a new mode by pressing the menu select button next to the menu item The TRlG SRC menu is removed from the screen after selecting a mode with one of the menu select buttons Pressina or calling up another function also removesthe menufrom the disp...

Page 42: ...ndingonthe selectedchannelanddis play mode When CH 1 and CH 2 traces are both displayed choosetheoneto besavedina selectedmemory locationusing the or buttonbeforeselectinga save location Whena memory locationbuttonis pressed an audible alarmwill sound and nothing will be saved if the channel selected for saving is off Waveform will be saved accordingto the display mode YT or XY in effect WAVEFORMS...

Page 43: ...uisitionregardlessof theposition selected in the TRIG POS menu The acquired waveform data expectfor the first five data points will therefore bepost trigger data points after the trigger event MODE Button displays the menu for selection of the acquisition mode The selected mode is boxed in the menu Choose the acquisition mode you want NORM ENV AVG or CONTENV seeSection6 para 6 10 either bypressing...

Page 44: ...on calls up the auxiliary functions menu AUX The AUX Menu controls several diversefeatures The ALIGN choice displays a test pattern useful for making crt adjustments The patternremainson screenuntil is pressedor another con trol is activated The SELF CAL menu choice provides several self calibration routines The menu called up by CONFG is used to turn the AUTO TIMEOUT feature on or off and control...

Page 45: ...l graticule lines The ALIGN test pattern availableintheAUX Functionsmenuprovidesadisplayto aidin adjustingthis control VERT ALIGN a screwdriver adjustment used to align the dis playwith the vertical graticule lines Usethe ALIGN test pattern available inthe AUX Functionsmenuas an aid in adjustingthis control FOCUS ascrewdriveradjustment usedto adjustfor bestfocus Figure 3 10 Rear Panel REV JUN 1989...

Page 46: ...mpatible signalport The limitedcommandset to whichthe 222responds allows waveforms and front panel setups to be uploaded or down loadedvia the port Referto the RS 232 InterfaceGuide for operating information and a list of the commands EXTPOWER INPUTConnector usedto applyexternalpower to the instrument Either a 16to 20Vac at 47 to 400 Hz or 12to 28 Vdc power source supplying at least 15 watts or 16...

Page 47: ...SECTION 4 HOW IT WORKS ...

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Page 49: ...scope 4 2 AUTO SETUP Press to auto range on the signal s at the probe tip s A channel that has no signal applied is turned off except if neither channelhasa signalapplied thenCH 1 remainson Ifa channelthat isoff hasa signalapplied Auto Setupturnsthe channelon TheVerti cal controls default to the on channelwhen only one is on and the SECIDIVandTrigger LEVELsettingsare autorangedto that channel s ap...

Page 50: ...m Press menu item to select that menu item and clear the menudisplay For many control menus you may also press the menu call up button repeatedly to cycle through the dis playedchoiceswhilethemenuisdisplayed pressthe but ton to remove the menu display after the correct selectionhas been made The fourth menu select button acts as th buttonwhen a menu isnotdisplayed Pressing uisitioninprogressto res...

Page 51: ... 5 MENU AND SAVED WAVEFORM DISPLAYS CLEARING Press the bezel button to remove menus and saved waveforms from the display Menusand savedwaveformsare cleared in atwo step prioritywhen both are displayed Menu are cleared on the first press and saved waveforms on the second press A displayed menu is also cleared when a menu select button is pressed or another controlfunction is selected 4 6 CHANNEL SE...

Page 52: ...r GND 4 to select that input coupling directly The menu is cleared when a direct choice is made using a menu select button See Section 6 para 6 4 for a discussion of the couplingtypes Press CHI OFF or CH2 OFF 4 to turn the selected channel straceoff channelOFFisnotselectedwhenswitching through the input coupling choices using the channel select buttons When a channel s trace is off the word OFF is...

Page 53: ... if itsVOLTS DIVreadoutis notboxedinthe display VOLTSIDIV Rotatethe 0knob outer knob of the two concentricknobs inthe Vertical section to scale the selected channelvertically 4 9 VERTICAL POSITIONING Pressthe or ICHSELECTICOUPLINGbuttonto selectthe channel trace to be positioned if that trace is not the active channel VOLTSIDIV RotatetheVertical knob innerknobofthetwo concentric Vertical control k...

Page 54: ...variable gain setting for the channel VOLTSIDIV Press and hold in the knob again while turning it clock wise until a beep is heard The calibrated VOLTS DIV setting is then restored for the selected channel OneusetheVariableVOLTSIDIVcontrol isto set awaveformdisplay amplitudeto a specific number of divisions betweenthe calibrated settings 4 1 1 CHI AND CH2 INVERTED DISPLAY Pressthetop panel buttont...

Page 55: ...nthe bottom line of readout and changes with knob rotation until either range limit is reached Continuingto turn the knob past the range limit causes no further readout change At some frequenciesthe display may be aliased An alias waveform is one that is formed by under sampling The sampling rate at a par ticular SECIDIV setting is too low to capture enough data pointsto definethe signal period Th...

Page 56: ...he trigger point inthe expanded waveform 4 14 X I 0 MAGNIFICATION SECIDIV Press in the Horizontal knob inner concentric knob to magnify the display by 10 times around the center vertical graticule line Eachpresstogglesthehorizontalmagnificationfeatureonor offwhen inY T display mode IfX Y displaymode is active an audiblealarm is sounded andthe display is not magnified When magnified each division c...

Page 57: ...ontrol setting is placed at the midpoint betweenthe peaks This feature is usefulfor quicklyfinding aTrigger LEVELsettingthattriggersthedisplay inNORM AUTO BL andSSEQ Trigger MODES If you have the Trigger LEVEL set for a particular voltage that the trigger signal must cross to trigger the acquisition don t press the AUTO LVL button as this will change the setting to trigger on whatever signal appea...

Page 58: ...selected Press NORM AUTO LVL AUTO B L or S S E buttonto select that mode directly The menu clears when the selection is made NOTE Use either NORM or SSEG TriggerMODE whenAVG or CONT ENV acquisition mode is in effect for SEC DIV settings of 0 1 sec and slower AVG and CONT ENV acquisition display do not scroll a complete record is obtained before the waveformis updated If the acquisition is untrigge...

Page 59: ... l button repeatedly to cycle through the choices while the menu is displayed Press to remove the menu display when the desired Trigger SOURCE is selected Press V E R T C H I C H or E X T to make the choice directly and clear the menu VERT uses the channel 1 signal as the trigger source if both channels are displayed and the channel 2 signal when only channel 2 is displayed REV MAR 1989 ...

Page 60: ... are both displayed choosethe oneto be saved in a selectedmemory locationusingthe ItH and buttons before selecting a save location When a memory locationbutton is pressed an audible alarmwill sound and nothing will be saved if the channel selected for saving is off Waveformsare saved inthe same displaymodethat is ineffect at the time of saving either Y T or X Y Acquirethe waveform at the vertical ...

Page 61: ...to view the saved waveform Turn off the saved waveform trace by pressingthe button a second time 4 20 RECALLING SAVED WAVEFORMS Recallsavedwaveforms from the RECALLWVFRM menu The menu displays four memory locations Once saved a waveform may be recalled for display at any time Waveforms savedinY T displayformatwill berecalledinY Tformat those saved in X Y format will be recalledfor display in X Y f...

Page 62: ...laysthe VOLTSIDIV scale factor of theY Axis Channel2 signal The first VOLTSIDIV readout inthe line is the scale factor for the X Axis Channel 1 signal Savedwaveforms may be clearedfrom the display by pressingthe buttonwhenthe RECALLWVFRM menu is not beingdisplayed 4 21 SAVING FRONT PANEL SETUPS The SET UP menu permits you to save a current front panel setup recall one of four previously saved setu...

Page 63: ... save the setup into location 1 Digital Storage I r r o n i x 222 sclllosco e 111 NOTE A memory locationthathas datasaved isboxed in the SAVE SET UP menu that is called up when SAVE is selected A boxed location is overwrittenby the new setup data when that memory is selected for saving SAVE SETUP ...

Page 64: ...ing the front panel setup 4 22 RECALLING FRONT PANEL SETUPS Saved front panel setups may be recalled to restore those control settings NOTE Youmay want to keep a reference list of what is in the setup locations to refer to when recalling a previously saved setup When you want to recall a saved setup from location 1 Press W RECALL EI NOTE If an empty memory location is selected an audible alarm bee...

Page 65: ...s in effect 4 23 CLEARING SAVED FRONT PANEL SETUPS A selected memory may be cleared or all four memories may be cleared at once Filled memory locations are boxed in the menu To erase setup memory 1 Press E TY I ERASE I 1 I 4 The menu clears when the selection is made pressingaor calling up another menupriorto makinga selection also removesthe menu from the display ...

Page 66: ...m data points around the trigger event is determined by the TRlG POS setting for waveforms acquired in STOREmode Trigger position is selectedfrom theTRlG POS menu In NONSTORE mode the trigger position is always set at the sixth data point it is not adjustable Changes made to the TRlG POS setting in NONSTORE mode will take effect when STORE mode is selected again To display the menu Press the butto...

Page 67: ...been made Calling up another menu also removes the TRIG POS menu from the display Press P O S to acquirethe majorityof data points after the trigger event Press M I to acquire data points divided evenly on both sides of the trigger event Press P R E to acquire the majority of data pointsfrom prior to the trigger event The menu clears and the normal acquisition readouts return when a direct selecti...

Page 68: ...ndicate the direc tion to the trigger signal trace 4 25 ACQUISITION MODE SELECTION The acquisition mode is controlled by the ACQ MODE menu The selected mode is boxed in the menu Press to call up the menu Press the LCOI button to cycle through the choices while the menu is being displayed The selected mode is boxed in the menu Press NORM E N V A V G or CONT E N V to select that mode directly The AC...

Page 69: ... by the Vertical POSITION knob Select CH 2 to position the display vertically and select CH 1 to position it hori zontally X Y is boxed in the menu list when that display mode is selected and unboxed for Y T mode The CH 1andCH2traces are bothturnedon ifoff whenX Y modeis selected andthey cannot beturned off whileX Y display mode is in effect 4 27 READOUT ON OR OFF When several waveforms are being ...

Page 70: ...ingthe menu select buttonwhenthe choiceis boxedturns the readouts back on and clears the menu The DlSPL Mode menu is also removed when is pressed or another menu is selected 4 28 AUTO TIMEOUT The Auto Timeout feature conserves battery power by turning the oscilloscope offwhen itis not inactiveuse WithAUTO TlMEOUTdis abled or with external power applied the oscilloscope remains on until the button ...

Page 71: ... bring up the control menu for the AUTO TIMEOUT selection AUTO TIMEOUT is boxed in the menu when the feature is enabled Press to exit from the menu if the selection is already as you want AUTO TIMEOUT DigitalStorage Press AUTO T I M E O U to turn the AUTO TIMEOUT feature on or off The menu clears afterthe choice is made ...

Page 72: ...s are300 1200 2400 and9600baud Baudratefor the 222 is set from the Auxiliary Functionsmenu Seetheterminal or PC instruc tion manual for setting the baud rate on those devices See the RS 232 Interface Guide for informationabout using the serial port Press to call up the menu DlgltalStorage Press C O N F G to bringupthe control choicefor setting the baud rate AUTO TIMEOUT BAUD REV APR 1989 ...

Page 73: ...oxed in the BAUD menu when called up The menu clears when a selection button is pressed 4 30 DISPLAY XY ROTATION ALIGNMENT Atest patternusedto adjustthe horizontalandvertical display align ment is available inthe AUX Functionsmenu Press to call up the menu The ALIGN function of the AUX Functions menu calls up a second menu REV JUN 1989 4 25 ...

Page 74: ... test patternthat isusefulinmakingcrt adjustments see Figure4 1 Adjust the HORlZ ALIGN and VERT ALIGN controls screwdriverad justment locatedonthe rearpanel to alignthe linesof thetest pattern with the horizontal and vertical graticule lines REV JUN 1989 ...

Page 75: ...the SELF CAL choice calls up an additionalmenuusedto runthe self calibrationroutines Aterminal or a PCoperating interminalmode maybeconnectedto determinethe testingresultsof the routines but it isnot required A PASSIFAILindi cation is displayed on the crt when a test is finished NOTE Disconnectboth the CH I and CH 2 Probesfrom any signal source before performing the SELF CALIBRA TIONroutines REV S...

Page 76: ...sage is displayed the first routine is done Press CH to start the Channel 2 self calibration When the PASSJFAILmessage is displayedthe secondroutine is done Press EXT TRIG to bring up the menu for runningthe external trigger self calibration NOTE Forthisself calibration the EXT TRlG COMMandEXT TRlGINPUTconnectorsmustbeconnectedtogether A shortjumper with bananaplug connectorsmaybe used to make the...

Page 77: ... stored calibration con stants are not changed Rerunthe failed routine again If thefailure persists refer the oscilloscope to a qualified service person A coded error message is output when an error occurs Further infor mationaboutthenatureof thefailuremaybefound by connectingthe RS 232 interfaceport to a terminal and rerunningthe failed self cali brationroutine See Section7 of this manual or the ...

Page 78: ...up the menu Select IDENT to display the firmware version installed in your instrument The IDENT display is superimposed on the displayedwaveforms andreadoutsandremainsdisplayeduntil the button is pressed to remove it from the display A typical IDENTdisplay is shown below X XX isthefirmwarever sion number location TEK 222 VER X XX REV JUN 1989 ...

Page 79: ...SECTION 5 MAKING MEASUREMENTS ...

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Page 81: ...trace is turned on See Section 6 para 6 1 for a complete list of the default control settings To usethe auto setupfeature for signaltracing connectthe probetip to the test point for the unknown signal Then just press the AUTO SETUP button Ifa signal isappliedto bothprobes bothchannelswill be auto set vertically only the trigger channel will be auto set hori zontally If both signalsare time related...

Page 82: ...ale factor of the channel that is dis playingthewaveform To improvethe accuracy of the measurement positionthewaveformbothvertically and horizontallyto take advan tage of the minor divisions of the center vertical graticule line For example in Figure5 1 the peak to peak amplitudeof the sine wave signal is 5 divisionswith a VOLTS DIV readout of 0 2 V Multi plying 0 2 V times 5 divisions gives a pea...

Page 83: ...Vertical POSITIONsettingafter switchingback to DC coupling or you will lose your ground reference Findthe numberof vertical divisionsfrom the groundreferenceto the measurement point on the signal and multiply by the VOLT DIV set ting The resultisthevoltage atthemeasurementpointwith respectto ground Inthe figure 5 2 the ground level reference is the bottom graticule line From the ground reference t...

Page 84: ...SECIDIV scale factor the horizontal scaling is the same for either channel display NOTE If a saved waveformis being measured the scale fac torsfor thesavedwaveformmustbe usedfor thecalcu lations for both voltage and time measurements The VOLTSIDIVand SECIDIV readouts for the active chan nel may be unrelated to the saved display POSITION WAVEFORM TO CENTER GRATICULE LINE HORIZONTAL DIVISIONS I Figu...

Page 85: ...riod of 8 2 ms RISETIMEMEASUREMENT Usingthe graticuleto measuretherise time or fall time of a signal requires some signal scaling so that the 10 and 90 dotted graticule lines may be used for making the measurement Basically the scaling involves selecting a VOLTIDIV setting that produces more than the required 6 division of veFtical deflection then adjusting the Variable VOLTSIDIV control to set th...

Page 86: ...s type of measurement is notpossibleusinga groundedoscilloscopewithout specialisolation adapters The double insulated constructionalsopermitssafeuseof the 222 for making elevated voltage measurements up to the safe input limits given in the Specifications IfeithertheEXTTRIGCOMMconnectorortheRS 232 cable is connected to an external earth ground or externalpower is applied the oscilloscope chassis c...

Page 87: ...Making Measurements 222 DSO Operators Common mode noise covering signal Common mode noise rejected 7100 17 Figure 5 5 Common mode rejection with differential inputs ...

Page 88: ...want to trigger on 3 PressAUTO SETUP to obtaina quick front panel control setupfor the test signal If the vertical or horizontal scaling result is not what youwant to view adjusttheVOLTSIDIVand SECIDIVcontrolsasyou wish You may also want to set the Vertical POSITION differently 4 Switch the Trigger MODE to NORM and the Trigger SOURCE to CH 1 Then adjust the Trigger LEVEL control carefully for a st...

Page 89: ...eful for capturing an event that occurs either randomly or infrequently If the event is also very narrow usethe ENV acquisitionmode aswell ENVacquisition modesamplesthe signalatthemaximumsamplingrateanddisplays the peaksfound Initialize the SSEQ and let the oscilloscopewatch for the event Datawill be continuallyacquiredupto thetrigger point Whenthe trigger event happens the remainingdata neededto ...

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Page 91: ...MORE ON HOW IT WORKS ...

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Page 93: ...t channel 1will not be turned off if neither channel has a signal applied When a signal is applied to both channels the channel 1 signal determinesthe SECIDIV setting and Trigger LEVEL both signals are autoranged bertically and positioned within the crt display area The channel 1 signal is positioned in the top half of the graticule area and the channel 2 signal is positioned in the bottom half Th...

Page 94: ...lCH2 Coupling Acquisition Mode AC if in AC when selected DC if in DC GND or OFF unless there is no signal then it is Trigger POS Trigger SLOPE POST Plus CHlICH2 INV OFF noninverted X I 0 MAG OFF II I STORE NONSTORE XY Display Off Y T 11 Readout I ON NONSTORE Trigger Midrange in the 11 LEVEL ITrigger signal CHI if sufficient signal on CHI input or no signal on CH2 As determined by signal frequency ...

Page 95: ...eachprobe seeFigure6 1 The hooktip permitshands free operationwhen connectingto easily assessibletest points usu ally a component leador test pointconnector When probingcircuit boardrunsandotherpointsintight access locations installtheprobe common shroud after removing the hook tip The exposed sharp probetipwill connectthroughresistandoxidelayerswhiletheshroud prevents accidental contact of the pr...

Page 96: ...DETACHABLE PROBE COMMON LEAD HOOKTIP PROBE BODY DETACHABLE PROBECABLE Figure 6 1 Probe and probe accessories ...

Page 97: ...Passesall frequency components of the input signal up to the vertical bandwidth to the attenuator of the selected channel Select DC input couplingwhen the completewaveformcontent dc ac is to be viewed AC Capacitively couples the input signal to the attenuator of the selected channel dc is blocked Select AC input coupling when viewing mostwaveformsto reducethe amount of verticalpositioning needed f...

Page 98: ...lay modefor SECIDIVsettingsof 20secondper divisionto 0 1 secondperdivision is Scroll mode continuousROLL No trigger is accepted and each data point is displayed as it is acquired starting with the first data at the left end of thetrace Onlyvalid datapointsaredisplayed andthe trace is blanked at the end of the valid points After the display is filled the data points are shifted left one positionfor...

Page 99: ...odes update as a full recordonly and are triggered SSEG At the slow SECIDIV settings AVG and CONT ENV modes update slowly SCAN ROLL SCAN SAVE AVGand CONT ENV modes update as a full record only and are triggered AUTO LVL NORM AUTO BL or SSEQ2 2PressINITto reset the display and restartthe acquisition RECORD3 ContinuousFull Record Acquisition 3if NONSTOREmode is selected the display blanksbetween acq...

Page 100: ...at thetrigger point andfilling thedisplaytotheright As soonasthedisplayisfilled it iserasedand the fill roll fill sequence begins again Pressing INIT at any point resetsthe display system and restartsthe acquisition sequence As in Scroll mode AVG and CONT ENV waveform acquisitions update only as a full record and do not scroll SCAN ROLL SCAN SAVE Mode This mode is the default for SECIDIV settings ...

Page 101: ...imply over write the previous data points Placement of the new data points in thedisplaywillfollow any ac or dc movementof thewaveform butthe old data points are not changed until they are overwritten If NONSTOREdisplay mode is selected the waveform is clearedas soon as the display memory is full and the trace is blanked until a trigger occurs to acquire new data points If the Trigger MODE is SSEQ...

Page 102: ...er MODEdoes notpermita digital acquisitionor waveform display until a trigger signal occurs The Trigger LWEL control mustbe adjustedto set thetriggeringthresholdto a levelthat will produce a trigger Sample Rate 10 MHz 10 MHz Thewaythedisplay reactsafter eachupdatedependsonwhetherthe display mode is set to STORE or to NONSTORE 10 MHz 10 MHz NONSTOREmode produces a display behavior similar to that o...

Page 103: ...s I Autoleveling on the trigger signal is done at the following times when AUTO LVLTrigger MODE is entered when a trigger is not receivedwithin a certaintime limit after the trigger system is armed see Table 6 4 when the AUTO LVL PUSH knob is pressed Autolevelingmaynot produceavalid trigger ifthe signal amplitudeis lessthanthetriggerhysteresis 114of a minordivision or ifthetrigger events do not oc...

Page 104: ...he source of the trigger signal Select CHI or CH2 if a specificchannelsignal iswantedasthetrigger signal source The channel selected need not be displayed to supply the trigger signal Trigger coupling follows the coupling of the channel signals for VERT CHI and CH2 Trigger SOURCE Trigger input couplingfor EXT Trigger is always dc 6 8 TRIGGER POSITION For STORE display mode waveforms the trigger po...

Page 105: ...limits of the trigger signal each time the trigger signal is lost For other Trigger MODES the Trigger LEVELcontrol may by be set to any levelwithin the vertical amplifier dynamic range for a particular VOLTSIDIV setting InanyTrigger MODE theAUTO LVL PUSHbuttonmaybepressedto set the LEVELsetting to the midpoint value of the trigger signal 6 10 ACQUISITIONS MODES A choice is made by first pressing t...

Page 106: ...d acid type batterywith four cells These usefultips will help extend the battery life 1 Completelyrechargethe batteryafter eachdischargecycle Con tinued partial recharges shorten the battery life The battery is on charge any time external power is used to operate the instrument However the battery recharges faster when the instrument is not operating 2 Avoid situationsthat can lead to deep dischar...

Page 107: ... fromthe batteryis lessthan 1mA With the batteryinstalled the data stored in nonvolatile memory will remain stored and be available when the oscilloscope is turned on again 5 The instrument will operate from the battery charger adapter or other suitable ac or dc power source with the batteryremoved from the instrument 6 12 ALTERNATE METHOD FOR BATTERY CHARGING Batteries may be charged outside the ...

Page 108: ... on its right side and slidethe batterycom partment cover toward the rear to disengage the locking tabs The hole for the probe leads makes a convenient place to apply the neededforce with your finger 3 Liftthe batterycompartmentcover up and slide it downthe probe leads enough to be able to lay the cover down 4 Disconnectthe 3 wire battery connector NOTE If you reconnect power to the battery connec...

Page 109: ...orrugatedcardboardshippingcartonwith atest strengthof at least 275 pounds and an inside dimension at least six inches greater than the instrument dimensions 2 If instrument is being shipped to a Tektronix Service Center enclosethefollowinginformation owner saddress nameandphone numberof acontact person type andserialnumberof theinstrument reason for returning and a complete description of the serv...

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Page 111: ...SECTION 1 OPTIONS AND ACCESSORIES ...

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Page 113: ...ce or rep resentativehthe UnitedStates instrumentsor accessoriesmayalso be ordered by calling the Tektronix National Marketing Center toll free number 1 800 427 2200 7 2 STANDARD ACCESSORIES The standard accessories come with the instrument Qty Description Part Number 1 Operators Manual 070 7100 00 1 Quick Reference Guide 070 7099 00 1 RS 232 InterfaceGuide 070 7533 00 1 Battery Charger Adapter 12...

Page 114: ... to BNC Adapter Part Number 7 4 OPTIONS The following Battery Charger Adapter Options are available Description Part Number Option 02 Instrument supplied without the battery charger adapter Option A1 European 220V 120 1 826 00 Option A2 UK 240V 120 1827 00 7 5 PARTS SUPPLIED WITH THE 222ACC FIELD ACCESSORIES KIT Description External BatteryCharger Accessory Pouch Viewing Hood Battery Charger Data ...

Page 115: ...PERFORMANCE SPECIFICATIONS ...

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Page 117: ...onsare given in para 8 4 and Mechanical Specifications are given in para 8 5 8 2 RECOMMENDED PERFORMANCE CHECK SCHEDULE Check the performance of this instrument at least once each year to determine if adjustment is needed If used in a severe operating environment a morefrequent performancecheckschedule isrecom mended If repairs are made affected circuits may need to be readjusted 8 3 DETAILED SPEC...

Page 118: ... Rise Time SECIDIV x 1 6 1 50 Risetime is limited to 35 ns by the vertical amplifier response Useful Bandwidth SAMPLE 20 sldiv to 5 Ksldiv Hz 1 SECIDIV Useful storage bandwidthis limitedto thefrequencywherethere are 10 samples per sine wave signal period at the maximum sampling rate This yields a maximum amplitude error of 5 Maximum sampling rate is 10 MHz at 5 ks per division Accuracy at the usef...

Page 119: ...y Monotonicwith no missing codes Position Control Range 2 12 divisions Input Linear Range DC Balance 0 2 division or less trace shift when switching between VOLTS DIVswitchsettings whenthe ambienttemperatureiswithin t 5OC of the temperature at which the last self calibrationwas done INVERT Balance 0 4 division or less trace shift when switching between INVERT and non INVERT displays when the ambie...

Page 120: ...citance 27 pF f 3 pF 1 These R and C characteristics include the probe Common to Chassis Capacitance Less than 150 pF 1 MaximumRated Normal Mode inputVoltage probetip to probe common 400 V dc peak ac to 2 MHz See Figure 8 1 for voltage versus frequency derating curve 100 kHz 1 MHz 2 MHz 10 MHz F R E Q U E N C Y 7100 2 Figure 8 1 Maximum normal mode voltage versus frequency derating curve Performan...

Page 121: ...100 Hz 1 kHz 10 kHz 100 kHz F R E Q U E N C Y 7100 10 Figure 8 2 Maximumcommon mode voltageversusfrequency derating curve Maximum Rated PotentialBetween Channels 800 V dc peak ac l Common Mode Rejection Ratio DC to 1 kHz 80 dB or more 1 1 kHz to 100 kHz 60 dB or more 1 Isolation Channel Signalto ChannelSignal DC to 10 MHz 80 dB or more 1 PerformanceRequirementnot checked in manual REV JUN 1989 ...

Page 122: ...nput Capacitance Trigger Jitter 2 s div to 50 nsldiv 5 nsldiv in XI0 MAG X1 XI0 MAG 0 5 division to 20 MHz 220 divisions 1 200 mV to 10 MHz 2 3 V 1 M a lo 18 pF 25 pF I 1150thdivision 2 ns l 115th division 22ns 8 3 3 HorizontalSystem Range 50 ns per divisionto 20 s per division 1 The XI0 MAG control extends the maximum sweep speed to 5 ns per division Performance Requirementnot checked in manual R...

Page 123: ... MHz 1 2 sldiv 5 MHz 1 ACCURACY 0 01 I Sample accuracy is based on the accuracy of the internal 20 MHz oscillator Record Length 512 data points calibrated to 50 points per divisionl POSITION Control Range Start of the first division and end of the tenth division can be positionedpast the center vertical graticule DisplayedTrace Length PerformanceRequirementnot checked in manual REV JUN 1989 ...

Page 124: ...any pin 25 V dc peak ac l Baud Rates 300 1200 2400 9600 0 1 accuracy based on the micro processor clock 1 Signals RD TD and SGND SGND is connected internallyto EXTERNAL TRIG COM DSR and CTS are always high and DTR and RTSare ignored 1 Levels Compatible with RS 232C 8 3 6 External Power Requirements Voltage Range 16 to 20 Vac at 47 to 400 Hz 1 Performance Requirement not checked in manual REV JUN 1...

Page 125: ... 8 3 7 Internal Batteries Battery Sealed lead acid battery Charge Time Three hoursfor full charge with oscilloscope not operating 1 Battery Excessive Discharge Protection Instrument operation is automatically interrupted when battery charge drops to 7 32 V l Typical OperatingTime Two hoursat maximumsample rate notrigger and autotimeout defeated 1 Battery Capacityversus Temperature PerformanceRequi...

Page 126: ...Nonoperating 51 O C to 71 C 60 F to 160 F 1 Tested to MIL T 28800D para 4 5 5 1 3 and 4 5 5 1 4 except that in para 4 5 5 1 3 steps 4 and 5 are performedbefore step 2 51 O C nonoperating test Equipment shall remain off upon return to room ambient temperature during step 6 Excessive condensation shall be removedbefore operating during step 7 1 Altitude Operating 4 570 meters 15 000 feet Maximum ope...

Page 127: ...edfrom 10Hzto 55 Hzin 1 minute sweeps Holdfor 10minutes at55 Hzineachof the three major axes All major resonances must be above 55 Hz 1 Shock operating and nonoperating 50 g half sine 1 ms duration 3 shocks per axis each direction for a total of 18 shocks 1 EM1 Electromagnetic Interference Meets radiated and conducted emissionrequirementsper VDE 0871 Class B and Part 15 FCC Rules and Regulations S...

Page 128: ...ere are no cooling vents provided Finish Tektronix Blue pebble finish with black synthetic rubber hand grips and black vinyl probe pouch Construction Plastic cabinet Glass laminate circuit boards with surface mounted components CRT CRT graticule area is 8 divisions high by 10divisions wide The divisions are 0 5 cm on a side and the diagonal size is 6 4 cm approximately2 5 inches A special low refl...

Page 129: ...APPENDIX CHECKING YOUR INSTRUMENT S PERFORMANCE ...

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Page 131: ...erator accessible controls and connectors A 2 TEST EQUIPMENT REQUIRED TableA 1 lists all the test equipmentrequiredto do the Performance Check Procedure Test equipment specifications described are the minimum necessary to provide accurate results For test equipment operation information referto the appropriatetest equipment instruc tion manual When you use equipment other than that recommended you...

Page 132: ... 1 MHz Rise time 1 ns or less Flatness f 0 5 Marker outputs 5 ns to 0 5 s Marker accuracy 0 1 Connectors BNC Impedance 50 a Lenqth 42 inch Impedance 5 0 a Connectors BNC Connectors BNC male to miniature probe tip Connectors BNC female to dual banana Use Vertical triggering and bandwidth checks Gain and transien responsechecks Horizontal checks Externaltrigger checks Signaltermination Signal inter ...

Page 133: ...tions An instrumentself calibrationmusthavebeendonewithin 5OCofthe present ambient operating temperature C n f l e t r Banana length 3 inches or more The instrumentmust be checked at an ambienttemperaturebetween 10 C and 55OC Externaltrigger self calibration A 4 PERFORMANCE CHECK INTERVAL It is recommended that a complete performancecheck be done on the instrument at least once each year A more fr...

Page 134: ...order to ensure the correct control settings for the steps that follow Let the instrument and test equipment warm up for 10 minutes to obtain a valid performance check to the accuracies stated in the Specifications Section 8 Set Up a Plugthe wall transformer into the ac power source b Plug in the low voltage ac power cord from wall transformer to the EXTERNAL POWER INPUT of the oscilloscope c Pres...

Page 135: ...t Current A 9 2 Check Input Coupling A 9 3 Check Vertical POSITION Range A 10 4 Check Variable VOLTSIDIV Range A 10 5 Check VOLTSIDIV Accuracy A 11 6 Check Probe Compensation A 12 7 Check Analog Bandwidth A 13 A 9 HORIZONTAL 1 Check XI SECIDIV Accuracy A 15 A 10 TRIGGER 1 Check Trigger Sensitivity A 16 2 Check Trigger LEVEL Control A 16 3 Check ExternalTrigger Sensitivity A 18 4 Check External Lev...

Page 136: ...to Setup Press for initial setup 1 CheckIAdjust INTENSITY Control a Adjust the INTENSITY control located on the rear panel counterclockwise CCW b CHECK that the crt beam cuts off no intensity c Adjust the INTENSITYcontrol clockwise for normalviewing 2 Adjust FOCUS Control a Press the AUX FUNCT button on the top panel b Select the ALIGN menu choice then the XY menu choice c Adjust the FOCUS control...

Page 137: ...ment to align the horizontal pattern lines with the horizontal graticule lines 4 CheckIAdjust VERT ALlGN Alignment a CHECK that the VERT ALlGN adjustment accessible from the rear will aligntheverticallinesofthe boxwiththevertical graticule lines b ADJUST theVERTALIGN adjustmentto alignthevertical pat tern lines with the vertical graticule lines c Press the CLEAR button to remove the display patter...

Page 138: ...INITIAL CONTROL SElTINGS Power and Display External Power ON Power ON Vertical CH 2 Input Coupling GND CH 2 VOLTSIDIV 5 mV CH 2 Variable CAL CH 1 Input Coupling GND CH 1 VOLTSIDIV 5 mV CH 1 Variable CAL Horizontal SECIDIV XI0 MAG 1 ms OFF Trigger Trigger MODE AUTO BL Trigger SOURCE VERT Trigger SLOPE Top Panel Controls Trigger POS POST STOREINON STORE STORE CH 1 and CH 2 INVERT OFF XY MODE OFF REA...

Page 139: ... 50 mV SECIDIV 0 5 ms Trigger MODE AUTO LVL b CONNECT the Calibration Generator AMPL output via a BNC to male probe tip adapter to the CH 2 probe tip c Set the CalibrationGeneratorfor a STD AMPL output at 0 2V d Vertically position the bottom of the signal to the center hori zontal graticule line e Set the CH 2 Couplingto AC f CHECK for the display to be vertically centered about the center horizo...

Page 140: ...divisions above the center horizontal graticule line g SET CH 1 Coupling CHI OFF CH 2 Coupling AC CH 2 VOLTSIDIV 0 2 V h Disconnect the Channel 1 probe tip from the test equipment and connect the Channel 2 probe tip i Repeat parts c d e and f for CH 2 4 Check Variable VOLTSIDIV Range a SET CH 2 Coupling DC CH 2 VOLTSIDIV 50 mV b Set the Calibration Generatorfor a standard amplitude output of 0 2 V...

Page 141: ... CH 1 5 Check VOLTSIDIV Accuracy a Set the CH 1 VOLTSIDIV to 5 mV b Set CalibrationGeneratorfor a standard amplitude outputsig nal of 20 mv c Vertically center the display d CHECK all positions of the VOLTSIDIV settings for correct signal to graticule accuracy using the VOLTSIDIV and Calibration Generator settings and Amplitude Limits given in Table A 2 e Return the Calibration Generator output to...

Page 142: ...15 div 3 88 div 4 12 div 4 85 div 5 15 div 4 85 div 5 15 div 1 94 div 2 06 div 50 mV 0 2 ms MID b Connect the Calibration Generator positive going FAST RISE output via a 5 0 4 termination and a BNC to male probe tip adapter to the CH 2 probe tip c Setthe CalibrationGeneratorto output a FASTRlSEsignalwith a 1 ms period d Vertically position the top of the square wave on the second horizontal gratic...

Page 143: ...display k Repeat part g for CH 1 I Disconnect the test equipment from the oscilloscope 7 Check Analog Bandwidth a SET CH 1 VOLTSIDIV 0 5V SECIDIV 5 FS b Connectthe Leveled Sine Wave Generatoroutputvia a 50 ll termination and BNC to male probe tip adapter to the CH 1 Probe tip c Set the Leveled Sine Wave Generatorfor a display amplitude of 6 divisions at 50 kHz d Set the SEClDiV to 50 ns e Set the ...

Page 144: ...CH 2 Coupling DC CH 2 VOLTS DIV 0 5 V SECIDIV 5 FS i Disconnect the Channel 1 probe tip from the test equipment and connect the Channel 2 probe tip j Vertically center the display k Repeat parts c d e and f for CH 2 I Disconnect the test equipment from the oscilloscope ...

Page 145: ...rmer INITIAL CONTROL SE TTINGS Power and Display External Power Power Vertical CH 2 lnput Coupling CH 1 lnput Coupling CH 1 VOLTS DIV CH 1 Variable Horizontal SECIDIV XI0 MAG Trigger Trigger MODE Trigger SOURCE Trigger SLOPE Top Panel Controls Trigger POS STORE NON STORE CH 1 and CH 2 INVERT XY MODE READOUT ACQUISITION MODE CH2 OFF DC 0 1 v CAL 1 ms OFF AUTO LVL VERT POST STORE OFF OFF ON NORM ...

Page 146: ...nerator to output 1 ms time markers c Vertically position the baseline of the time mark signal to the center horizontal graticule line d Horizontally position the left time marker with the first vertical graticule line e CHECK that the leading edge of eachtime marker is aligned to a vertical graticule line within 2 f0 1 division f Disconnect the test equipment from the oscilloscope REV MAR 1989 ...

Page 147: ...apter transformer BNC Coaxial Cable INITIAL CONTROL SElTINGS Power and Display External Power Power Vertical CH 2 Coupling CH 2 Variable CH 1 Coupling CH 1 VOLTSIDIV CH 1 Variable Horizontal XI0 MAG SECIDIV Trigger Trigger MODE Trigger SLOPE Trigger SOURCE Top Panel Controls Trigger POS STOREINON STORE CH 1 and CH 2 INVERT XY MODE READOUT ACQUISITION MODE CH2 OFF CAL DC 5 mV CAL OFF 50 ns AUTO LVL...

Page 148: ...for a stable trigger d CHECK that the signal remains triggered while the trigger point indicator is on the positive slope when rotatingtheTrigger LEVEL control through its range e Set the Trigger SLOPEto I f CHECK that the signal remains triggered while the trigger point indicator is onthe negativeslope when rotatingtheTrigger LEVEL control through its range g Set the CH 1 VOLTSIDIV to 50 mV h Set...

Page 149: ...he trigger point indicator is on the positive slope when rotatingtheTrigger LEVEL control through its range q Set the Trigger SLOPEto r CHECK that the signal remains triggered while the trigger point indicator is onthe negativeslopewhen rotatingtheTrigger LEVEL control through its range s Set the CH 2 VOLTS DIV to 50 mV t Set the Trigger LEVEL control to positionthe trigger indicator 1divisionbelo...

Page 150: ...on a BNC T connector and a BNC to male probe tip adapter to the CH 1 probe tip c Connect the other side of the T connector via a5 0 4 coaxial cable and BNC female to dual banana connector to the EXTTRIG and EXTTRIG COMM inputs d Vertically center the display e Set the Sine Wave Generator for 4 divisions of amplitude at 10 MHz f CHECK that the display is stably triggeredwith the TRIG D indicator li...

Page 151: ... the XY menu choice it is a hidden menu choice that is not labeled to start the clock calibrationprocedure d CHECK that the trigger position indicator remainswithin the center two horizontal divisions see FigureA 1 An occasional jump outside the center two divisions is alright e PressCLEAR whenfinished with the trigger jitter check proce dure This will start the automatic Clock Delay routine NOTE ...

Page 152: ... DSO O erators Normal Trigger Jitter less than 1 division from the center vertical graticule line Excessive Trigger Jitter 1 division or more from the center vertical graticule line Figure A 1 Trigger jitter check REV JUN 1989 ...

Page 153: ...th battery power only 2 4 with external power applied 2 4 with long acquisitiontimes 6 8 Auxiliary Functions button 3 18 menu 4 24 AVG acquisition 3 17 4 20 6 6 6 13 BAUD 4 25 8 8 Bandwidth limit 8 3 peak detect 8 3 repetitive 8 2 sample 8 2 xy mode 8 8 Battery capacity versus temperature 8 9 charging 2 3 6 14 chargingtime 1 4 8 9 deep discharge state 2 3 6 14 recoveryfrom 6 1 5 excessive discharg...

Page 154: ...Coupling 6 5 Deflectionfactor 8 1 DifferentialMeasurements 5 6 Dimensions 1 3 height 8 12 length 8 12 width 8 12 Display alignment pattern 4 25 Display MODE menu 4 21 Display Mode button 3 18 menu 4 21 Display update 6 5 ENV acquisition 3 17 4 20 5 9 6 13 EnvironmentalSpecifications 8 10 requirements 8 10 Equivalent Time Storage 6 9 Erasing Front Panel Setups 4 17 ERASEALL 4 18 EXTTRIG INPUT conne...

Page 155: ... 9 6 13 M Magnification 4 8 Maximumapplied voltage on RS 232 interface 8 8 Maximumcommon mode volt age 1 3 Maximumnormal mode voltage 1 3 Maximumpotential between channels 1 3 Maximum potential between power and common 1 3 Maximumpower consumption 8 9 Maximum ratedcommon mode potential 8 5 Maximum rated input voltage 8 4 Maximum rated potential between channels 8 5 Measurements differential 5 6 fl...

Page 156: ...OUTONJOFF 4 21 RECALL front panel setups 3 17 4 16 savedwaveforms 3 16 4 13 RECALLWVFRM menu 4 14 RECORD Mode 6 9 as affected by Trigger Mode 6 9 REPETITIVEMode 6 9 Readout locations 3 6 Rear Panel Controls 3 19 RecordLength 1 2 8 7 Repackagingfor shipment 6 17 ROLL Mode 5 9 6 1 RS 232 Interface 8 8 maximum applied voltage 8 8 RS 232 Port for communication 3 20 for self calibrationerrors 4 29 leve...

Page 157: ...l sensitivity 8 6 input C 8 6 input R 8 6 internal sensitivity 8 6 jitter 8 6 LEVEL control 3 14 external range 8 6 operation 6 13 setting 4 9 MODE button 3 1 5 setting 4 10 SLOPE button 3 14 selection 4 9 SOURCE 6 12 button 3 15 selection 4 1 1 specifications 8 6 TRlG POS 3 17 TRIG D indicator 3 15 Trigger Controls 3 14 Trigger Modes 6 10 Useful bandwidth 1 2 Useful rise time 8 2 useful bandwidth...

Page 158: ... 3 domestic shipping 8 12 with accessories 8 12 without accessories 8 12 XI0 MAG 3 13 4 8 fastest sweep speed 8 6 XY Display Mode 4 14 4 21 X Y operation 8 8 accuracy 8 8 skew between channels 8 8 useful bandwidth 8 8 XY positioning 4 8 XY rotation alignment 4 25 REV JUN 1989 ...

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Page 160: ......

Page 161: ...ware If you know basic PC operation and are familiar with the 222 front panel you can quickly take advantage of all the features built into the CAT200 package CAT200 VIRTUAL INSTRUMENTSOFWVARE EXTENDSTHE REACH OF THE 222 There are numerous appica tions for CAT200 For example it allows measurement at hazardous sites without en dangering a human operator In field calibration or checkout a service en...

Page 162: ...es Retentionof this program for more than thirty 30 days or use of the program In any manner will constitute accep tance of all license terms The 90 day warranty period extends to the product s media and encoding only ORDERING INFORMATION CAT200 includes User smanual Two 2 5 114 diskettes One 1 3 112 diskette For further information contact USA Asia Australia Central South America Japan Tekfronix ...

Page 163: ... 12 Autoranges on the active channel signal s when pressed VOLTSIDIV SECIDIV vertical position and Trigger LEVEL are set 13 Outer knob sets SECIDIV 20sto 50 ns lnner knob positions horizontally it turns XI0 MAG on and off when pressed NOTE Menu callup buttons also scroll through the menu selections when pressed repeatedly TOP PANEL KEYS 1 Haltsthe acquisition and calls upthe SAVE CHI WV SAVE CH2WV...

Page 164: ...ggerLEVELsettingand isseen on the trigger channel if displayed SELECTING ACQUISITION MODE 1 Press I EPI to select NORM ENV AVG or CONT ENV acquisition mode 2 ENV acquisition is valid for SECIDIV settings from 20sto 20 JLS Signalpeaksin eachsampling intervalare displayed AVG mode gives a moving average of the last four acquisitions CONT ENV accumulates peak variations of the input signal SAVING A W...

Page 165: ......

Page 166: ... can beprogrammed withapersonal computer through its RS 232 port You ll find a number of sampleprograms on the disk along with driversfor several popular software languages Thereareno copyrights or impliedagreements associated withthis disk you re freeto use it any wayyou like Second you can subscribeto222Tips whichareapplication notes developed just for the222 They llcovera wide variety of troubl...

Page 167: ...s 1External Batte y Charger 1222 Battery 1Cigarettellghter adapter 1V ewlng Hood and 2 222 Accessory Pouches This packagerepresents a 25 savings over the pfece pnces CAT200 Price 350 q I iiA is a Virtual Insmrnent SWpackage designedfor Tektronixand the 222 by NationalInstruments and is available exclusively from Tektronixacd their authorized distr butors It allows for con piete unattended operatio...

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