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Tektronix Cordless Sander 2205 User's Manual

1. comme Operation aa E APA nassa Coaxial Cables To maintain good waveform fidelity and accuracy use only high quality low loss coaxial cables When you use 50 0 or 75 0 coaxial cable attach a matching external terminator Some high frequency response will be lost without external termination 2 14 2205 Operator s SECTION 3 M E gt a TE EE Bots EE III EE ES IG ZOZ sayng us sab ATIS Ye it i i Ed 2205 Operator s DO aes rue Applicatlons This section describes how to make specific types of measure ments with your 2205 Oscilloscope Before performing any pro cedure be sure you are familiar with the information contained in the Operator s Safety Summary and in Section 1 Preset the instrument front panel controls using the setup in Learning the Controls in Section 2 as a guideline and then turn on the power For maximum measurement accuracy allow a 20 minute warm up period E AMPLITUDE MEASUREMENTS Peak to Peak Voltage This procedure may be used to make peak to peak voltage measurements between any two points on the waveform 1 Apply the signal to either the CH1 or the CH2 input connec tor and set the VERTICAL MODE selector to display the chan nel used 2 Set the appropriate VOLTS
2. Checks and djustments Performing the operator checks and adjustments in this section will eliminate significant sources of measurement error and will improve measurement confidence if adjustments are required beyond the scope of this section refer the instrument to a quali fied service technician A complete performance check should be made after every 2000 hours of operation or once a year if the instrument is used infrequently A shorter interval may be necessary if your instru ment is subjected to harsh environments or severe usage TRACE ROTATION Normally the horizontal axis of a waveform display will be paral lel to the center horizontal graticule line To check horizontal alignment and to adiust it if necessary perform the following procedure A probe is not needed for this adjustment 1 Preset instrument controls see Learning the Controls in Section 2 and obtain a baseline trace 2 Use the Channel 1 POSITION control to move the baseline trace to the center horizontal graticule line 3 The trace should be parallel to the center horizontal grati cule line If it is not use a small flat bit screwdriver to adjust the TRACE ROTATION control on the front panel so that the trace aligns with the center horizontal graticule line PROBE COMPENSATION Optional 10X Probe ee N N Ed LE ee m Misadjustment of probe low frequency compensation is a com Ra mon source of measurement error Most attenu
3. British Standards institution CEE International Commission on Rules for the Approvai of Electric Equipment IEC International Electrotechnical Commission NEMA National Electrical Manufacturers Association SEV Schweizerischer Elektrotechnischer Verein UL Underwriters Laboratories inc 2205 Operator s Preparation for Use CAUTION DISCONNECT INPUT POWER BEFORE REPLACING FUSE FOR CONTINUEB FIRE PROTECTION REPLACE ONLY WITH SPECIFIED CAUTION TYPE AND RATED FUSE TO AVOID ELECTRIC SHOCK THE POWER CORD PROTECTION gt GROUNDING CONDUCTO MUST BE CONNECTED TO GROUND d FREQUENCY 00 NOT REMOVE COVERS REFER 48 440H7 SERVICING TO QUALIFIED PERSONNEL A FUSE 250v 0 5A_SLOW T OAA SLOWIT IEC 127 5420mm zen Nos SA SLOW UL 198 8 3AG l e w Cu dud O pwe Ma 14 X DA 128V ozsa S OW osa LINE VOLTAGE SELECTOR 3 LINE VOLTAGE SELECTION U TEKTRONIX INC BEAVERTON OREGON USA MADE IN HONG KONG JE Figure 1 1 Voltage selector switch fuse ar and power cord receptacle N N EE Ge N eg N ee eg ee EE ee Ge N 2205 Operator s 1 3 Preparation for Use LINE FUSE The fuse holder is located on the rear panel and contains the line mains fuse Use the following procedure to verify that the proper fuse is installed or to install a replacement fuse 1 Unplug the power cord from the power source if applic
4. Operator s Safety Summary For More Information a Should you need additional information about your 2205 Oscillo scope or about other Tektronix products contact the nearest Tektronix Sales Office or Distributor consuit the Tektronix prod uct catalog or in the U S cali the Tektronix National Marketing Center toll free at 1 800 426 2200 The 2205 Oscilioscope viti 2205 Operator s SECTION 1 PREPARATIO mm et ee ZEN ne m NN SEE 2205 Operator s nn PRZ Preparation for Use This section gives you important safety information and telis you how to proceed with initial start up of the TEKTRONIX 2205 Oscil loscope SAFETY Before connecting the 2205 Oscilloscope to a power source read this entire section Also refer to the Safety Summary at the front of this manual for power source grounding and other safety considerations pertaining to the use of the instrument Be sure that you have the training required to safely connect the 2205 to the signals you want to measure CAUTION This instrument may be damaged if operated with the LINE VOLTAGE SELECTOR on the rear panel set for the wrong applied ac source voltage or if a wrong line fuse is installed LINE VOLTAGE SELECTION The 2205 operates from either a 115 V or a 230 V nomina
5. 6 4 Part Number 161 0104 00 159 0042 00 161 0104 06 159 0032 00 161 0104 07 159 0032 00 161 0104 05 159 0032 00 161 0104 08 159 0032 00 161 0167 00 159 0032 00 2205 Operator s Options and Accessories OPTIONAL ACCESSORIES Table 8 2 lists recommended optional accessories for your in strument TABLE 6 2 Optional Accessories Description Part Number Front Panel Protective Cover 200 3397 0900 Accessory Pouch 016 0677 02 Front Panel Protective Cover 020 1514 00 and Accessory Pouch Hand Carrying Case 016 0792 01 CRT Light Filter Clear 337 2775 02 Rack Mount Conversion Kit 016 0819 02 Viewing Hoods Collapsible 016 0592 00 Polarized 016 0180 00 Binocular 016 0566 00 Probe 10X 2 m with P6103 accessories N E Alternative Power Cords TT European 020 0859 00 United Kingdom 020 0860 00 Australian 020 086 1 00 North American 020 0862 00 Switzerland 020 0863 00 2205 Operator s 6 5 Options and Accessories TABLE 6 2 cont Description Attenuator Voltage Probes 10X Standard 10X Subminiature 10X Environmental 1X 10X Selectable 100X High Voltage 1000X High Voltage Current Probes Current Probe Amplifier Active Probe 10X FET Active probe Power Supply Ground isolation Monitor isolator for multiple inde pendently referenced differential measurements DC inverter DC Inverter Mounting Kit Portable Power Supply Battery Pack Oscilloscope Camera
6. The following procedure shows how to eliminate unwanted AC line frequency components Similar methods could be used to eliminate other unwanted frequency components or to provide a DC offset 1 Apply the signal containing the unwanted line frequency components to the CHi input connector 2 Apply a line frequency signal to the CH2 input connector To maximize cancellation the signal applied to Channel 2 must be in phase with the unwanted line frequency component of the Channel 1 input 3 Set the three VERTICAL MODE selectors to BOTH NORM ALT set both VOLTS DIV controls equally to produce dis plays of approximately four or five divisions amplitude 4 Adjust the CH2 VOLTS DIV and Variable CAL controls so that the Channel 2 display is approximately the same ampli tude as the undesired portion of the Channel 1 display see Figure 3 3 top 5 Now set the middle and right VERTICAL MODE selectors to CH2 INVERT and ADD Slightly readjust the CH2 VOLTS DIV variable control for maximum cancellation of the undesired signal component Figure 3 3 bottom Amplitude Comparison Ratio In some applications it may be necessary to establish a set of deflection factors between step settings of the VOLTS DIV con trols This is useful for comparing unknown signals to a refer ence signal of known amplitude To accomplish this a reference signal of known amplitude is first set to an exact number of vertical divisions by adjustin
7. 22 5 HS 2205 Operator s 3 13 NE Ee 00000000208 ee N Applications Phase Difference in a similar manner to the preceding measurement you can make a phase comparison between two signals of the same fre quency using the dual trace feature of the 2205 This method of phase difference measurement can be used for signals with frequencies up to the limit of the vertical deflection system To make a phase comparison use the following procedure Fi 2 Set the TRIGGER SOURCE selector to CHI Set both input coupling controls to the same position de pending on the type of input coupling desired Using probes or cables with equal time delays apply a known reference signal to the CHI input connector and ap ply the unknown signal to the CH2 input Set VERTICAL MODE to BOTH then select either ALT or CHOP depending on the frequency of the input signals The reference signal should precede the comparison signal in time If the two signals are opposite in polarity set the middle VERTICAL MODE switch to CH2 INVERT to invert the Channel 2 display Set both VOLTS DIV and VOLTS DIV Variable CAL controls to display equal amplitude waveforms Adjust the TRIGGER LEVEL control for a stable display and center the display vertically Set the SEC DIV control to a sweep speed that displays about one fuil cycle of the waveforms Position the displays and adjust the SEC DIV Variable CAL contro
8. including composite trigger selection can cause a display that implies a phase relationship or even synchronization of independent waveforms If in doubt about the relative timing of CH 1 and CH 2 signals experienced operators set the TRIGGER SOURCE to either CH 1 or CH 2 2205 Operator s 2 9 EE men nennen NG nm nn nn nn A EE EE EE EE EE z Operation HORIZONTAL CONTROLS Sweep Speed Selection The unmagnified sweep MAG set to X1 is the horizontal func tion needed for most applications Best measurement accuracy is achieved by setting the SEC DIV control for the fastest sweep that will display the interval of interest The variable control CAL should be in its detent fully clockwise Magnifying Waveform Details The X10 MAG mode expands the unmagnified trace A magni fied trace is useful for observing specific portions of a waveform when you are making accurate timing measurements or looking at waveform details When selected X10 MAG mode lets you examine details such as the entire leading edge of a puise s second repetition of a trace up to 10 screen iengths from the trigger point Appendix A lists the sweep speeds for 10X magnification at every SEC DIV control setting The one division segment of the unmagnified trace centered on the middie vertical graticule line is expanded and displayed as the magnified trace With the center verticai graticule line as the reference the investigation of waveform
9. details around any point on the unmagnified trace as well as the measurement of time with greater accuracy become sasy tasks TRIGGER CONTROL For most signais the trigger control settings that will yield hands off triggering are MODE P P AUTO SOURCE VERT MODE 2 10 2205 Operator s pee Oz OCE Operation pp PTOP TT nn Which Mode to Use P P AUTO TV LINE With this mode set the range of the LEVEL control is confined to the values between the triggering signal peaks For example selecting P P AUTO and rotating the LEVEL contro to the center of its range establishes a trigger point about midway between the peaks of the triggering signal In this mode the absence of a triggering signal causes the sweep to free run And with signals below 20 Hz the P P AUTO circuit may not find the correct level Whenever TRIGGER SOURCE is set to VERT MODE the trigger ing signal is supplied by the channel being displayed or as shown in Table 2 1 The P P AUTO mode is effective for monitoring logic signals and television lines having at least 20 Hz repetition rate Selecting P P AUTO at the instrument front panel also sets the TV LINE triggering mode NORM This mode produces a sweep only when the triggering signal meets the criteria set by the LEVEL and SLOPE controls With NORM mode selected range of the LEVEL control is suffi cient to set any voltage threshold that can be displayed by the i
10. from the graduations on the vertical centerline referring to the 0 and 100 percentage marks on the left edge of the graticule 1 minor division equals 4 for a 5 division display TIME MEASUREMENTS Time Duration To measure time between two points on a waveform use the following procedure 1 Apply the signal to either the CH1 or the CH2 input connec tor and set the VERTICAL MODE selector to dispiay the chan nel used 2 Adjust the TRIGGER LEVEL controi to obtain a stable display 3 Set the SEC DIV control to display between one and two complete repetitions of the waveform Check that the SEC DIV variable control is in the CAL detent 3 8 2205 Operator s Applications ee ni GA AG a NA EE a di EE EE ii 4 Position the display to place the time measurement points on the center horizontal graticuie line see Figure 3 5 HORIZONTAL DISTANCE 6717 08 Figure 3 5 Measuring time duration 5 Measure the horizontal distance between the time measure ment points t nm nm ee es 6 Calculate time duration using the following formula horizontal SEC DIV distance X control Time divisions setting Duration SAAT magnification factor EXAMPLE In Figure 3 5 the distance between the time meas urement points is 8 3 divisions and the SEC DIV setting is 2 ms per division HORIZONTAL MAG is set to X1 ann 2205 Operator s 4 9 Applications Substituting the given values Time Durat
11. procedures for converting a standard instrument into the Option 1R configura tion by using the separately orderable rack mounting conversion kit Option 1T Adds Transit Case for 2205 Option 22 Adds 24 Signal Adapters 016 0921 00 Option 23 Two P6103 dc to 50 MHz 10X Modular Probes are provided Option 24 Two P6062B 1X 10X Selectable Attenuation Probes are added 6 2 2205 Operator s p A fs nungen un goa Item Options and Accessories Power Cords Instruments are shipped with the detachable power cord and fuse configuration ordered by the customer Table 6 1 identifies the Tektronix part numbers for international power cords and as sociated fuses Additional information about power cord options is contained in Section 1 Preparation for Use 2205 Operator s bo g 6 3 Options and Accessories TABLE 6 1 Power Cords and Fuses Description Standard United States Power Cord 2 5 m Fuse 0 75 A 250 V 3AG x 1 4 Slow Option A1 Universal Europe Power Cord 2 5 m Fuse 0 5 A 250 V SAG ax 1 4 Slow Option A2 United Kingdom Power Cord 2 5 m Fuse 0 5 A 250 V 3AG x 1 4 Slow Option A3 Australia Power Cord 2 5 m Fuse 0 5 A 250 V 3AG Ha x 1 4 Slow Option A4 North America Power Cord 2 5 m Fuse 0 5 A 250 V BAG Wax 114 Slow Option A5 Switzerland Power Cord 2 5 m Fuse 0 5 A 250 V BAG x 11a Slow
12. rugged lightweight dual channel 20 MHz instrument that features a bright sharply defined trace on an 80 by 100 mm cathode ray tube crt ts low noise vertical system supplies calibrated deflection factors from 5 mV to 5 V per division at full bandwidth Stabie triggering is achieved over the full bandwidth of the verti cai system The flexibility and high sensitivity of the trigger sys tem provides a range of conveniences such as hands free trig gering with the peak to peak automatic mode normal trigger mode independent selection of TV line and TV field triggering at any sweep speed and single sweep triggering The trigger sig nal is dc coupled An external triggering signal or an external Z axis modu ation signal can be applied via a front panel connector and the source selector switches The horizontal system provides calibrated sweep speeds from 0 5 sto 100 ns per division For greater measurement accu racy a X10 magnifier circuit extends the maximum sweep speed to 10 ns per division Accessories The instrument is shipped with the following accessories opera tor s manual two signal adapters a power cord and a power cord clamp Part numbers for these standard accessories as well as for other optional accessories are located in Section 6 Options and Accessories The voltage sensing signal adapters were designed specifically to et AI the performance of your 2205 2205 Operator s vii NO ROEE
13. safety information 2 Verified that the LINE VOLTAGE SELECTOR is set for the source voltage to be used Verified the fuse Attached the power cord aen Ensured adequate ventilation around the instrument o m A Plugged the power cord into the appropriate power source outlet Now turn on your oscilloscope by pressing in the POWER button Observe that the Power On indicator located below the button illuminates 2205 Operator s 1 5 PIT NEONODE e Pd SECTION 2 OPERATION 2205 Operator s DN Wo Sn304 13836 L H2 r e p A A r D AT SONG MONS Cd C KLASS Mollis AJISN3ENI 1 pig TE oro sr c ER OT A a OE OE GA a Gma a ra e E MERS DD UE CIWINOZIMOM VALIA L Z ajqej 0 pe ex Sue JUBLUNJISUI eui uo SISQUINN LON Operatlon FRONT PANEL ORGANIZATION The 2205 front panel is organized to make it easy for you to display signals and make measurements Referring to the fold out illustration Figure 2 1 or to the oscilloscope itself notice that the front panel is partitioned into four major control sections Display VERTICAL HORIZONTAL and TRIGGER Just to the right of the cathode ray
14. the special cases where you need to see small signals on large DC voltage levels 2 8 2205 Operator s MEE Operation Channel Selection With the three VERTICAL MODE selectors you can display com binations of the two vertical channels When Channel 1 is se lected the other two MODE switches are not active When CH 2 is selected the middle MODE switch NORM CH 2 INVERT be comes active And when BOTH channels are selected for dis play all three MODE selectors are active ADD and INVERT Select ADD mode to display the algebraic sum of the CH1 and CH 2 signals When you use ADD the CH 1 and CH 2 VOLTS DIV settings should be equal Selecting CH 2 INVERT causes the polarity of the CH 2 waveform to be inverted This allows you to see the difference between CH 1 and CH 2 signals on the ADD trace CHOP or ALT When BOTH channels are selected the display is time shared The CHOP mode displays each channel for a short time and mul tiplexes during the sweep to give the appearance of displaying both channels at once This mode CHOP works better than ALT for sweep speeds slower than 1 ms per division and for low repetition rate signals that make the display flicker up to 2 us division The ALT mode displays each channel for the duration of a com plete sweep It gives a cleaner display of multiple channeis than CHOP does and is usually preferred at moderate to high sweep speeds Certain trigger conditions
15. vidual signals tween CH 1 and CH 2 signais during the sweep at 500 kHz rate Selects vertical Adjust vertical signal sensitivity to suitable size 2 2 2205 Operator s Operation Table 2 1 cont d Recommended Use Variabie CAL Provides continu ousiy variable de common mode flection factors readings Adiust height between calibrated of puise for rise time ositions of the calculations OLTS DIV switch Heduces gain by at least 2 5 1 Match signais for Select method of coupling input signals to the vertical deflection System AC GND DC jin AC blocks dc j component of signal in GND gives reference point and allows recharging of nput coupling capacitor In DC couples all com ponents of signal Provides for input signal connections CH 1 gives hori zontal defiection when SEC DIV is in X Y CH 2 pro vides vertical da fiection HORIZONTAL POSITION moves Control trace positioning POSITION traces horizontally in horizontal direction Apply signals to the vertical deflection system MAG Selects degree of Examine smali X1 X10 horizontal magni phenomena in detail fication Extends sweep speed to 10 ns div SEC DIV Selects time base Set horizontal speed speed most suited to require ments Variable Provides continu Extend th
16. wed By assaniad meten NOTICE to the user operator The German Postal Service requires that Systems assembled by the operator user of this instrument must also comply with Postal Regulation Vfg 1046 1984 Par 2 Sect 1 HINWEIS tit den Benutzer Betreiber Die vom Betreiber zusammengestelite Anlage innerhalb derer dies Ger t eingesetzt wird mu ebenfalls den Voraussetzungen nach Par 2 Ziff 1 der Vfg ae genugen NOTICE to the user operator 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 1046 1984 Par 2 Sect 1 7 1 are complied with HINWEIS f r den Benutzer Betreiber Dies Ger t darf in Meffaufbauten nur betrieben werden wenn die Voraussetzungen des Par 2 Ziff 1 7 1 der Vfg 1046 1984 eingehalten werden AA Certificate of the Manufacturer Importer We hereby certify that the _ 2205 OSCILLOSCOPE AND ALI INSTALLED OPTIONS complies with the RF Interference Suppression requirements of Amtsbl Vfg 1046 1984 The German Postal Service was notified that the equipment is being marketed The German Postal Service has the right to re test the series and to verify that it complies TEKTRONIX Bescheinigung des Herstellers Importeurs Hiermit wird bescheinigt da der die das 2205 OSCILLOSCOPE AND ALL INSTALLED OPTIONS in bereinstimmung mit den Bestimmungen d
17. 5 div x 1 x 2 Vidiv 3 0 V 3 0 div x l 1 x 2 V div 6 0 V E li Algebraic Addition With the three VERTICAL MODE selectors set to BOTH NORM ADD the waveform displayed is the algebraic sum of the signals applied to the Channel 1 and Channel 2 inputs CH1 CH2 If the middle MODE selector is then set to CH2 INVERT the waveform displayed is the difference between the signals ap plied to the Channel 1 and Channel 2 inputs CHI CH2 When both VOLTS DIV controls are set to the same deflection factor the deflection factor of the ADD trace is equal to the deflection factor indicated by either VOLTS DIV control The following general precautions should be observed ween us ing ADD VERTICAL MODE Do not exceed the input voltage rating of the oscilloscope 2 Do not apply signals whose peaks exceed the equivalent of about 8 times the VOLTS DIV settings because large volt ages may distort the display For example with a VOLTS DIV setting of 0 5 V the voltage applied to that channel should not exceed approximately 4 V 3 Position the Channel 1 and Channel 2 waveforms near cen ter screen when viewed separately This ensures the great est dynamic range for ADD mode operation 4 To attain similar responses from both channels set the Channel 1 and Channel 2 input coupling selectors to the same position 2205 Operator s 3 5 PAKAKAK AA AA AAP AA AA ee PAP APA AA Applications Common Mode Rejection
18. 6 Point A 3 10 2205 Operator s 188 A A Emm nn Applications f AMPLITUDE op iA 4 TIME FROM TUDE paaa ATOB buie n feet HORIZONTAL DISTANCE jed Figure 3 6 Measuring rise time NOTE You can achieve better accuracy by using the SEC DIV control or horizontal magnification to expand the waveform transition so that it occupies from four to six horizontal divisions between the 10 and 90 amplitude points 5 Measure the horizontal distance between the 10 and 90 points Figure 3 6 Points A and B and calculate time dura tion using the following formula horizontal SEC DIV distance X control Rise divisions setting Time pum magnification factor EXAMPLE in Figure 3 6 the horizontal distance between the 10 and 9096 amplitude points is 5 divisions and the SEC DIV switch is set to 1 us per division HORIZONTAL MAG is set to X1 2205 Operator s 3511 AN ARAY ER al Applications Substituting given values in the formula Rise Time 5 div x 1 us div E 5 LS Time Difference Between Puises on Time Related Signals The calibrated sweep speed and dual trace features of the 2205 allow measurement of the time difference between two separate events To measure time difference use the following proce dure 1 Set the TRIGGER SOURCE to CH1 2 Set both input coupling controls to the same position 3 Using probes or cables with equal time delays apply a known
19. 6717 00 SE Power Cord and Fuse Per option ordered see Table 6 1 1 Power Cord Clam 343 0003 00 1 Screw 213 0882 00 1 Washer 210 0803 00 OPTIONS Option 02 This option is intended for users who need added front panel protection and accessories carrying ease demanded by fre quent travel to remote service sites it includes a protective front panel cover and an accessories pouch that attaches to the top of the instrument Option IC An oscilloscope camera is useful for capturing single events and documenting measurement results it helps communicate 2205 Operator s Bel Options and Accessories TU apa i a kaka nn results with clarity and credibility Option 1C provides the Tektronix C 5C Option 04 Low cost Camera for use with your oscilloscope Option 1K When this option is specified a K212 Portable Instrument Cart is included in the shipment The cart provides a stable yet mov able platform that is well suited for on site instrument mobility in a variety of work areas Option 1R When the oscilloscope is ordered with Option 1R it is shipped in a configuration that permits easy installation into virtuaily any 19 inch wide electronic equipment rack Ali hardware is supplied for mounting the instrument into the main frame Complete rack mounting instructions are provided in a separate document These instructions also contain the
20. DIV control to display about 5 divisions of the waveform and ensure that the VOLTS DIV variable control is in the CAL detent 3 Adjust the TRIGGER LEVEL control to obtain a stable display 4 Rotate the SEC DIV control to a setting that displays at least one cycle of the waveform 5 Vertically position the display so that the negative peak of the waveform coincides with one of the horizontal graticule lines see Figure 3 1 Point A 6 Horizontally position the display so that one of the positive peaks coincides with the center vertical graticule line Figure 3 1 Point B 7 Measure the divisions of vertical deflection from peak to peak Figure 3 1 Point A to Point B 2205 Operator s 3 1 Applications POSITION TO CENTERLINE VERTICAL DEFLECTION MEASURE AMPLITUDE FROM A TOB 6717 04 Figure 3 1 Measuring peak to peak voltage of a waveform NOTE if the amplitude measurement is critical or if the trace is thick because of hum or noise on the signal a more accurate result can be obtained by measuring from the top of a peak to the top of a valley This will eliminate trace width from the measurement n 8 Calculate the peak to peak voltage using the following for mula vertical VOLTS DIV Vp p deflection x setting di
21. NG THE CONTROLS if you have not read Section 1 yet you should do so now Then after turning the power on let the oscilloscope warm up for a few minutes before starting this procedure 1 Set instrument controls as follows Display INTENSITY Midrange FOCUS Set for clearly defined trace Vertical both channels POSITION Midrange MODE CH1 VOLTS DIV t OT MER VOLTS DIV Varible CAL detent fully clockwise input Coupling AC Horizontal POSITION Midrange MODE X1 SEC DIV 0 2 ms SEC DIV Variabie CAL detent fully clockwise Trigger SLOPE w a LEVEL Midrange MODE P P AUTO SOURCE CH 1 2 Connect a signal adapter to the Channel input BNC con nector labeled CH 1 or X Attach the ground lead to the collar of the EXT INPUT connector and apply the signal adapter tip to the PROBE ADJUST terminal If necessary adjust the TRIGGER LEVEL control to get a stabie dispiay 3 Change the Channel 1 input coupling to GND and use the Channel 1 POSITION control to align the baseline trace to the 2 6 2205 Operator s Operation center horizontal graticule line This sets the zero reference for the display 4 Return the Channel 1 input coupling to AC Notice that the square wave is centered vertically on the screen Now set the input coupling to DC and observe what happens to the waveform The zero reference is maintained at the center horizontal graticule line NOTE More information about using th
22. a bie 2 Use a screwdriver to press in and slight y rotate the fuse holder cap counterclockwise to release it 3 Pull the cap with the fuse out of the fuse holder 4 Verify that the fuse is the same type listed on the back of the instrument The two type of fuses listed are not directly in terchangeable they require different types of fuse caps 5 Reinstall the fuse or replacement fuse in the fuse holder cap 6 Replace the fuse holder and cap POWER CORD This instrument has a detachable three wire power cord with a three contact plug for connection to both the power source and protective ground The ground contact on the plug connects through the power cord to the external metal parts of the instru ment For electrical shock protection insert this plug only into a power source outlet that has a properly grounded protective ground contact Instruments are shipped with the required power cord as or dered by the customer Power cord plug information is pre sented in Table 1 1 and part numbers are listed in Table 6 1 INSTRUMENT COOLING Maintain adequate airflow to prevent instrument damage from internally generated heat Before turning on the power check that the spaces around the air intake holes on the sides of the cabinet are free of any obstruction to airfiow 1 4 2205 Operator s Preparatlon for Use INITIAL START UP Up to now you shouid have made the following preparation 1 Read the
23. ae NG 2 12 Waveform Fidelity and Probe Grounds 2 13 Probe Compensation east rn oo ia 2 13 Probe HanglinO vie dero ew net 2 13 Coaxial Caba aiii VERE EUREN NC e s 2 14 SECTION 3 APPLICATIONS Amplitude Measurements ES MET N 3 1 Peak to peak Voltage saaan 3 1 Instantaneous Voltage ss ss sees es ee se t s 3 3 Algebra MAAAMON nus ep Sd eee As 3 5 Common mode Rejection EL OE ET 3 6 Amplitude Comparison Ratio 0 ccc EE 3 7 Time Measurements EA ac S DAR lan 3 8 Time DU BOB wa Sac a me t Gals a ees Se ord 3 8 Period and Frequency csv ea EE 3 10 RISE Li fige ya EHE auc obe Seiten a dq 3 10 Time Difference Between Pulses on T me Related SIGABIS a Ka man o d Ce e he eS 3 12 Phase DINGTENGCD sia fa EE oc deae BANG RUE OSA ERR 3 14 Television Displays sace XY DE RECUERDO CAE DER 3 17 18411014 5101418 aoc qii RE CAE 3 17 TV Eins SINAIS taa ei Fa o A DS TS 3 18 Z Modulation TITRE MR 318 SECTION 4 CHECKS AND ADJUSTMENTS Traci RAAT sea ENS ew eee e OE GR EE E 4 1 Probe Compensation sana ERSTER TEN 4 1 Hoc 2205 Operator s mung Bocac pa ad SECTION 5 PERFORMANCE CHARACTERISTICS SECTION 6 OPTIONS AND ACCESSORIES Standard Accessories EE nm 6 1 OBIDIIS snes en in ab Re a ie 6 1 Optional Accessories APPENDIX A Magnified Sweep Speeds APPENDIX B Repackaging for Shipment APPENDIX C Glossar
24. als Select trigger mode Soma 2 4 2205 Operator s 068 00000000000000 0000008808 B0008005 0900000000 000000 098000045 oo 00000000000 800000000000000 moo 0000000 o se0000 A oo s esesssssssessses esl o de oo a n BesesesssesnesledUs Pe PO A ATA Decore 25 Operation Table 2 1 cont d Title Recommended Use _ RESET Arms trigger cir cuit for SGL SWP SOURCE CH 1 CH 2 LINE Select source of and EXT trigger signal that is coupled signals are selec to the RATE circuit ted directiy In VERT MODE trig ger source is de termined by the VERTICAL MODE selectors as u nei 1 signal CH 2 trigger comes from Chan net 2 signal BOTH ADD and BOTH CHOP trigger is aigebraic sum of Channel 1 and Channel 2 sig nais BOTH ALT trig ger comes from Channel 1 and Channel 2 on alternate sweeps Connection for applying external signai for use as a trigger EXT INPUT Trigger from a source other than vertical signal Also used for single shot application Connection for applying external signal for intensity modulation To intensity modulate the pen ey set thej right TRIGGER SOURCE conirol to EXT 2 Provide intensity modulation from independent source 2205 Operator s 2 5 Operation ABT a em TT PTT r A AA NG NA LEARNI
25. ator probes are equipped with compensation adjustments To ensure optimum measurement accuracy always compensate the oscilloscope probes before making measurements Probe compensation is accomplished as follows i Preset instrument controls as given in Learning the Con trols in Section 2 Operation and obtain a baseline trace 2 Attach the two optional X10 probes to the CH1 and CH2 input connectors 2205 Operator s 4 1 Checks and Adjustments 3 Set both VOLTS DIV controls to 1 V X10 probe set both input coupling controls to DC and select CH1 VERTICAL MODE 4 Place the tip of the Channel 1 probe on the PROBE ADJUST terminal 5 Using the approximately 1 kHz Probe Adjust signal obtain a 5 division dispiay 6 Set the SEC DIV control to display several cycies of the sig nal Use the Channel 1 POSITION control to vertically center the display 7 Check the waveform presentation for overshoot and rolloff see Figure 4 1 If necessary perform step 8 to adjust the probe low frequency compensation Otherwise proceed to step 9 8 Rotate the sleeve on the probe head to expose the LF COMP adjustment capacitor see Figure 4 2 Use a low reac tance alignment tool to adjust LF COMP and obtain a square or nearly square front corner on the waveform tops Figure 4 1 top trace EETTTITITE se LESE maa EE daa LES nl nl nl a COMPENSATED Eupen pn m ROLLOFF 6717 13 Figure 4 1 Probe compensat
26. channels Choose the channel with the lowest frequency signal to avoid ambiguous dis plays With TRIGGER SOURCE set to VERT MODE and VERTICAL MODE set to ADD or CHOP the triggering signal is the algebraic sum of the Channel 1 and Channei 2 input signals Use a composite trigger source only to view asynchronous signals simultaneously To generate a composite trigger select VERT MODE TRIGGER SOURCE and BOTH ALT VERTICAL MODE Slope Use the SLOPE control to select either the rising or the failing 1 edge of the signal to trigger the sweep Level The LEVEL control gives you complete freedom to choose the most appropriate threshold voltage on a signal to initiate sweeps whenever any trigger mode except P P AUTO is selected CONNECTING SIGNALS The signal adapter supplied with the instrument is usually the most convenient way to connect a signal to the 2205 These signal adapters are shielded to prevent pickup of electromag netic interference When connected to the 2205 input a signal 2 12 2205 Operator s Eg Ge A A Deer ENE Mast Operation adapter presents 1 MO and about 100 DE impedance to the cir cuit under test If this capacitance is disruptive to the circuit be ing tested use the optional 10X probe Waveform Fidelity and Probe Grounds When using a probe its ground iead must be used for accurate measurements and observations Use the shortest ground con nection possible for best wavefo
27. cteristics Performance Requirements Temperature Operating 0 C to 40 C 32 F to 104 F Nonoperating 55 C to 75 67 F to 167 F Altitude Operating To 4500 m 15 000 ft Maxi mum operating temperature decreases 1 per 300 m 1 000 ft above 1 500 m 5 009 ft Nonoperating To 15 250 m 50 000 ft Relative Humidity Operating 85 4096 5 30 C to 40 C Nonoperating 85 0 5 30 C to 60 C Vibration Operating 15 minutes along each of three major axes at a total displace ment of 0 015 inch p p 2 4 g at 55 Hz with frequency varied from 10 Hz to 55 Hz to 10 Hz 0008 00 00 0 dA AA in one minute sweeps Hold for z 10 minutes at 55 Hz in each of three major axes Ali major resonances must be above 55 Hz Shock Operating and 30 g half sine 11 ms du Nonoperating ration three shocks per axis each direction for a total of me l 18 shocks Radiated and Conducted Meets VDE 0871 Class B Emission Requirements 2205 Operator s 5 7 Performance Characteristics Tabie 5 3 Mechanical Characteristics Characteristics Performance Requirements Weight With Power Cord 8 25 kg 13 7 Ibs or less Domestic Shipping Weight 9 1 kg 20 0 Ibs or less Height 138 mm 5 4 in width With Handle 379 mm 14 8 in Without Handle 327 mm 12 9 in Depth Without Front Cover 441 mm 17 4 in With Optional Front 455 mm 17 9 in Cover With Handie 516 mm 20 3 in Exte
28. e TV field being displayed momentarily inter rupt the trigger signal by setting the input coupling to GND then back to DC or AC until the desired field is displayed NOTE To examine a TV Field signal in more detail set HORIZONTAL MAG to X10 To display either Field 1 or Field 2 individualiy connect the television signal to both the CH1 and CH2 input connectors and select BOTH and ALT VERTICAL MODE Set the SEC DIV control to 0 5 ms or faster sweep speed displays less than one full field This will synchronize the Channel 1 dis play to one field and the Channel 2 display to the other field 2205 Operator s 3 17 EE Ee Oe M nn a Applications TV Line Signals The following procedure is used to display a TV Line signal Ja Zi Verify that TRIGGER MODE is set to P P AUTO TV LINE Apply the Television signal to either the CH1 or the CH2 input connector and set the VERTICAL MODE selector to display the channel used Set the SEC DIV control to 10 us For positive going TV signal sync pulses set the TRIGGER SLOPE to and rotate the LEVEL control fully clockwise For negative going sync pulses set the TRIGGER SLOPE to and rotate the LEVEL control fully counterclockwise Sometimes it may be necessary to move the LEVEL control slightly clockwise to obtain stable triggering Set the appropriate VOLTS DIV control to display one divi sion or more of composite sync signal NOTE To
29. e controls is con tained at the end of this procedure Refer to it 4 when needed while learning the front panel con rm s trols 5 Use the following controls and notice the effect each has on the displayed waveform as the settings are changed Each POSITION control CH 1 VOLTS DIV CH 1 VOLTS DIV Variable CAL SEC DIV Variable CAL HORIZONTAL MODE HORIZONTAL MAG TRIGGER SLOPE 6 At this point connect the second signal adapter to the CH2 or Y input connector Set the VERTICAL MODE selector to CH 2 and TRIGGER SOURCE to CH 2 then follow steps 2 through 5 again using the Channel 2 controls a 0p 7 Now set the VERTICAL MODE selectors to BOTH NORM ALT aus and return both VOLTS DIV controls to 2 V 1X Rotate all variable controls clockwise to their CAL detents Set the TRIGGER SOURCE switch to CH 1 Then use the VERTICAL m ED POSITION controis to position the two traces to convenient dud locations on the screen 8 While watching the Channel 2 waveforms set the middie VERTICAL MODE control to CH 2 INVERT and notice the ef fect Then set the right MODE to ADD What happens to the control waveforms Finally return the middle MODE control to NORM What waveform is displayed now 2205 Operator s 2 7 EG DE OG mn o e a o d M Ag een Operation hd std e a T T a t nm t emm Congratulations You now know how to use the 2205 front panel controls to display signals and move them about on the screen The r
30. e is determined by the Vertical Mode OTHERS Aiternation A change in polarity like a positive changing directions to a negative and back again Cathode Ray Tube CRT The picture tube Divisions The lines that divide CRT display area units into X and Y components Graticule The square boxes formed by lines on the CRT face Hertz The basic unit of frequency Ohm 0 The basic unit of resistance Polarity The positive or negative direction of voltage or current a A 2205 Operator s C 3
31. e slowest GAL ous y variable un speed to at least 1 25 s div calibrated sweep speeds to at least 2 5 times the cali brated setting 2205 Operator s 9 3 AA Table 2 1 cont d No Tite Function Recommended Use 20 PROBE ADJUST Provides approxi mately 0 5 V i kHz square WAVE Allows user to adjust compensation of 10X probe This source may be used to check the basic functioning of vertical and horizontal circuits but is not in tended to check their accuracy m Ground Provides safety ground and direct connection to signal source Chassis ground connection ee Seiects the slope Provide ability to trigger of the signal that from positive going or SLOPE triggers the sweep negative going signals LEVEL Select trigger Select actual point of signal amplitude trigger point TRIG D indicator lights indicate trigger state READY when sweep is tri ato in P P in or TV FIELD Single an mode indicates trigger is armed P P AUTO TV LINE triggers from waveforms an television lines having repetition rates of at least 20 Hz NORM triggers from ade quate signal with no trace in ab sence of tri weer er signal TV Fi triggers from TY fieid signals trig ger polarity must be observed SGL SWP triggers sweep only once when armed by RESET button used for displaying or photographing nonrepetitive or unstable sign
32. emainder of this section gives you more information about the controls and offers suggestions for their use Section 3 ex plains how to make specific types of measurements and how to use the other controls not covered in the preceding exercise DISPLAY CONTROLS Set the INTENSITY controi for comfortable viewing but not brighter than you need Use high intensity settings to observe low repetition rate signals narrow pulses in long time intervals or occasional variations in fast signals VERTICAL CONTROLS When making voltage measurements rotate the VOLTS DIV CAL control fully clockwise in detent Best accuracy is achieved by setting the VOLTS DIV control for the largest display possible When a cable or a signal adapter is used to connect a signal the number in the 1X front panel area indicates sensitivity When using a 10X probe the number in the 10X PROBE front panel area indicates sensitivity For example the setting of 1 V div with a cable or signal adapter would be 10 V div with a 10X probe And although the knob skirt is not marked 5 V div at 1X would be 50 V div if a 10X probe were used input Coupling For most applications use DC input coupling This mode is compatible with the standard accessory signal adapters and it displays logic levels and DC levels of static signals Use GND input coupling to show where the zero voit level wili be located when you shift to DC or AC coupling Use AC coupling for
33. er Amtsblatt Verfuging 1046 1984 funkentstort ist Der Deutschen Bundespost wurde das Inverkehrbringen dieses Ger tes angezeigt und die Berechtigung zur berpruf ng der Serie auf Einhalten der Bestimmungen einger umt TEKTRONIX pese ob Po pogas CONTENTS Pags Operator Ss Salaly Summary adu dd Y el ie iv The 2205 Oscilloscope TTE vii SECTION 1 PREPARATION FOR USE Safety RR ipn rr n 1 1 Line Voltage Selection TN pi LINE FUSO OR ass EN Br oma ee 1 4 Power Cord dla een ph 1 4 mstrument OGONA zera una ae 1 4 Initial SIAN UP aus AT a EA De Ss ele ate ae 1 5 SECTION 2 OPERATION Front Panel Organization se buu imaam a ee 2 1 Controls Connectors and Indicators 2 1 Learning tne Controls uasa zaa een DEERE 2 6 Display Controls a RECE EE PEN 2 8 Vertical COnIrolS a ote dde e NAG EER Md 2 8 DUE COUDING rivis e aspas as e st 2 8 Channel Selection gt kraad 2 9 AGO SAA WEE superada AU a W ihn 2 9 CHOP Gr AT oed suceda deb eR diem AE ER 2 9 Horizontal CONUS kitsamas e ees ERE 2 10 Sweep Speed Selection EE UIE qaws 2 10 Magnifying Waveform Details wia su a 2 10 2205 Operator s SECTION 2 OPERATION CONTINUED INSGEr CONOS Gades eiserne owe dS ee 2 10 WHICH Mode fO USD sarna aes de ti 2 11 COUCE AA 9 12 IOS tordos ada ia ORA 212 Et me RO ED EE AA nee 9249 Connecting SIgIals
34. examine a TV Line signal in more detail set HORIZONTAL MAG to X10 To display a selected TV Line pulse first trigger the sweep on a TV Field sync pulse Use the HORIZONTAL POSITION control to select the desired line pulse then set HORIZON TAL MAG to X10 Z MODULATION The Z modulation system can be used to display time markers because it depends entirely upon the accuracy of the signal source it can also be used in any situation where external con trol of the brightness of some or all of the trace is required The Z or intensity modulation feature is operated in the follow ing manner 3 18 2205 Operator s pe A Reese o sosa BED EE EE EE EE E ANNE AT M IMs DE Applications 1 Set the left and right TRIGGER SOURCE controls to EXT and EXT Z respectively 2 Apply a signal to either the CH or the CH2 connector and set the VERTICAL MODE selector to display the channel used 3 Apply the Z modulation signal to the connector labeled EXT INPUT or Z When the Z modulation and the vertical input signals are syn chronized Z modulation is seen as gaps in the trace at the modulation frequency The size of the gap depends upon the mark to space ratio of the Z modulation signal The positive going portion of the Z modulation signal decreases display brightness 2205 Operator s 3 19 HAIRS AP PP A AAA E e rn SECTION 4 2205 Operator s
35. follow ing Owner with address name of the person at your firm who can be contacted complete instrument type and serial number and a description of the service required Wrap the instrument with poiyethylene sheeting or equivalent to protect the outside finish and to prevent entry of packing materials Cushion the instrument on all sides by tightly packing dun nage or urethane foam between the carton and the instru ment allowing three inches on each side Seal the carton with shipping tape or with an industriai sta DIET Mark the address of the Tektronix Service Center and your return address on the carton in one or more prominent loca tions 2205 Operator s B 1 M Weegee LE EEA A AA mg W W a m Demut APPENDIX C GLOSSARY DISPLAY CONTROLS BEAM FIND Finds the beam when it is off the screen FOCUS Adjusts the trace for optimum focus INTENSITY Adjusts the brightness of the trace POWER ON OFF Turns on AC power to the power supply When the light is on the instrument operates when the light is off the instrument is off TRACE ROTATION Adjusts the trace to be parallel with the fixed graticule See OTHERS for graticule VERTICAL CONTROLS ADD Combines Channel 1 and Channel 2 algebraically ALTERNATE ALT Shows CH 1 and CH 2 alternately first one sweep of Channel 1 then o
36. g the VOLTS DIV and VOLTS DIV Variable CAL controis Unknown signals can then be quickly and accurately compared to the ref erence signal without disturbing the setting of the VOLTS DIV Variable controis 1 Apply the reference signal to either the CH1 or the CH2 input connector and set the left VERTICAL MODE selector to dis play the channel used 3 8 2205 Operator s z wee Garne Y Applications CH 1 SIGNA WITH UNWANTED LINE FREQUENCY COMPONENT CH 2 SIGNAL FROM LINE FREGU d SOURC INVERT D CH 1 AND CH 2 SIGNALS HE SIGNAL WITH LINE FREQUENCY COMPONENT CANCELED RESULTANT SIGNAL Figure 3 3 Common mode rejection Set the amplitude of the reference signal to 5 vertical divi sions by adjusting the VOLTS DIV and VOLTS DIV Variable CAL controls Disconnect the reference signal and app y the unknown sig nal to the same channel input Adjust the vertical position of the waveform so that its bottom edge just touches the 0 line on the crt Horizontaily position the waveform so that its topmost fea tures cross the center vertical graticule line see Fig ure 3 ts 2205 Operator s 3 7 A M O BM TAI Applications REFERENCE SIGNAL UNKNOWN SIGNAL READ PERCENT RATIO 30 Figure 3 4 Determining voltage ratio 5 Read the percent ratio directly
37. ifa OPERATOR S MANUAL 070 6717 00 0 gt RA uy gt te Z i Y 2 X TE ER ronie COMMITTED TO EXCELLENCE B ho eegee sess seed ts TOERE TEK ss First Printing October 1987 2205 OSCILLOSCOPE OPERATOR S MANUAL Copyright 1987 Tektronix Inc Allrights reserved Contents of this publication may not be reproduced in any form without the written permission of Tektronix inc Products of Tektronix Inc and its subsidiaries are covered by U S and foreign patents issued and pending information in this publication supersedes that in all previously published material Specification and price change privileges re contact Tektronix Inc Corporate Offices P O Box 500 Beaver ton OR 97077 Phone 503 627 7111 TWX 910 467 8708 TLX 151754 Subsidiaries and distributors worldwide Printed in Hong Kong INSTRUMENT SERIAL NUMBERS Each instrument has a serial number on a panel insert tag or stamped on the chassis The first number or letter designates the country of manufacture The last five digits of the serial number are assigned seauentially and are unique to each instrument Those manufactured in the United States have six unique digits B010000 Tektronix inc Beaverton Oregon U S A HK00000 Hong Kong E200000 Tektronix United Kingdom Ltd London J300000 Sony Tektronix Japan H700000 Tektronix Holland NV Heerenveen The Netherlands
38. ion 4 2 2205 Operator s NG bestee Checks and Adjustments 3 Select CH2 VERTICAL MODE Disconnect the Channel 1 probe tip and attach the Channel 2 probe tip to the PROBE ADJUST output terminal 10 Obtain a 5 division signal display and vertically center the trace 11 Repeat step 7 for the Channel 2 probe LF COMP ROTATING SLEEVE Figure 4 2 Locating the low frequency compensation adjustment Ka 2205 Operator s 4 POZA OE pa ro HER RA en W WM ka nm SECTION 5 2205 Operator s COCA Performance Characteristics The 2205 electrical characteristics listed in Table 5 1 are valid when it has been adjusted at an ambient temperature between 20 C and 30 C has had a warm up period of at least 20 min utes and is operating at an ambient temperature between 0 C and 40 C unless otherwise noted Environmental characteristics are given in Table 5 2 The 2205 meets the requirements of MIL T 28800C paragraphs 4 5 5 5 1 3 4 5 5 1 4 and 4 5 5 1 2 2 for Type lil Class 5 equipment except where otherwise noted Mechanical characteristics of the instrument are listed in Table 5 3 TABLE 5 1 Electrical Characteristics Characteristics Performance Requirements VERTICAL DEFLECTION SYSTEM Deflection Factor Range 5 mV per division to 5 V per division in a 1 2 5 sequence
39. ion 8 3 div x 2 ms div 16 6 ms Period and Frequency In the preceding example you measured the time duration of one complete waveform cycle This particular measurement is called the waveform period T The frequency f of a recur rent signai can be determined from its period as follows 1 Measure the time duration of one waveform cycie period using the preceding time duration measurement procedure 2 Calculate the reciprocal of the period to determine the waveform frequency EXAMPLE The signal in Figure 3 5 has a period T of 16 6 ms Caiculating frequency f 1 1 f T 16 6 x 103g 60 Hz Rise Time Rise time measurements use the same methods as time dura tion except that the measurements are made between the 10 and 90 points on the low to high transition of the selected waveform Fali time is measured between the 90 and 10 points of the high to iow transition of the waveform 1 Apply a signal to either the CH1 or the CH2 input connector and set the VERTICAL MODE selector to display the channel used 2 Set the appropriate VOLTS DIV and VOLTS DIV Variable CAL control for an exact 5 division display 3 Vertically position the traces so that the zero reference of the waveform touches the 0 graticule line and the top of the waveform touches the 100 graticule line 4 Horizontally position the display so the 10 point on the waveform intersects the second vertical graticule line Fig ure 3
40. istics E A nn as ER LO la t TABLE 5 1 cont d Characteristics Performance Requirements Z MODULATION Sensitivity 5 V causes noticeable modu lation Positive going input decreases intensity Usable Frequency Range De to 5 MHz Maximum Safe Input 400 V dc peak ac or 800 V Voltage ac p p to 10 kHz or less X Y OPERATION X1 MODE Deflection Factors Same as Vertical Deflection System with Variable controls in CAL detents Accuracy X Axis 5 Y Axis Same as Vertical Deflection System Bandwidth 3 dB X AXIS Dc to at least 1 MHz RER Y Axis Same as Verticai Deflection se System E Phase Difference Between 3 from dc to 50 kHz M RCM MM E X and Y Axis Amplifiers PROBE ADJUSTMENT SIGNAL OUTPUT Voltage into 1 MO Load 0 5 V t 596 Hepetition Rate 1 kHz t 20 2205 Operator s 5 5 Performance Characteristics TABLE 5 1 cont d Characteristics Performance Requirements POWER REQUIREMENTS Line Voltage Ranges 115 V Setting 95 V ac to 128 V ac 230 V Setting 185 V ac to 250 V ac Line Frequency 48 Hz to 440 Hz Maximum Power 40 W 60 VA Consumption Line Fuse UL198 6 BAG 1 4 x 14 inch 115 V Setting 0 75A S ow 230 V Setting 0 5 A Slow CATHODE RAY TUBE Display Area 80 by 100 mm Standard Phosphor GH P31 Nominal Accelerating 1800 V 10 voltage m 5 6 2205 Operator s Performance Characteristics Table 5 2 Environmental Characteristics Chara
41. l ac power lina with any frequency from 48 Hz to 440 Hz Before connecting the power cord to a power source verify that the LINE VOLTAGE SELECTOR located on the rear panel is set cor rectiy and that the proper line fuse is installed Refer to Table 1 1 Figure 1 1 and the instrument rear panel To convert the 2205 for operation on the other line voltage range first check that the power cord is not connected to any power source Then use a flat bladed screwdriver to move the LINE VOLTAGE SELECTOR to the required position and install the appropriate fuse listed on the rear panel and in Table 6 1 2205 Operator s i est Ee Pa o eg De Oe EP Ne Loses mo 0740 NG sosoo 200800 wosssunnssnnsanns Preparation for Use Table 1 1 Power Plugs and Line Voltage Selection Line Plug Power Voltage Reference Configuration Option Plug Type Selector Standards E ANSI C73 11 NEMA 5 15 P IEC 83 UL 198 6 e CEE 7 Il IV VII 1EC83 Kingdom IEC 83 240V IEC 127 A3 Australia 230V JASC112 240 V IEC 127 ANSI C73 20 NEMA 6 15 P IEC 83 UL 198 6 A4 North kI America 240 V L SEV IEC 127 aA 5 A Type C fuse is installed inside the plug of the Option A2 power cord Reference Standards Abbreviations ANS American National Standards Institute AS Standards Association of Australia BS
42. l so that one cycle of the reference signal occupies exactly eight horizontal graticule divisions at the 50 rise time points see Figure 3 8 Each horizontal division of the graticule now represents 45 of the cycle 360 divided by 8 divisions and the horizontal graticule calibration can be stated as 45 per division 3 14 2205 Operator s Applications 10 Measure the horizontal difference between corresponding points on the two waveforms at the 50 rise time points and calculate the phase difference using the following formula horizontal graticuie Phase _ difference X calibration Difference divisions deg div EXAMPLE In Figure 3 8 the horizontal difference is 0 6 divi sion with a graticule calibration of 45 per division Substituting the given values into the phase difference formula Phase Difference 0 6 div x 45 div 27 CHANNEL CHANNEL 2 REFERENCE LAGGING MEASURE TIME FROM A TO 8 HORIZONTAL DIFFERENGE Figure 3 8 Phase difference ROOM 2205 Operator s 3 15 Applications More accurate phase measurements can be made by using the horizontal magnifier function to increase the sweep speed with out changing the SEC DIV variable control setting To do this set the HORIZONTAL MAG to X10 With the sweep speed increased 10 times MAG set to X10 the magnified horizontal graticule calibration will be 4 5 per division 45 division divided by 10 Figure 3 9 shows the same sig
43. nals illustrated in Figure 3 8 but horizontally magnified by a factor of 10 EXAMPLE In Figure 3 9 the 10X magnified display results in a horizontal difference of six divisions between the two signals Substituting the given values into the phase difference formula Phase Difference 6 div x 4 5 div 27 CHANNEL 1 REFERENCE CHANNEL 2 COMPARISON u man MEASURE TIME FROM A TOR HORIZONTAL DIFFERENCE Figure 3 9 High resolution phase difference 3 16 2205 Operator s FRESZ enteo de em mem Tania Applications TELEVISION DISPLAYS TV Field Signals The 2205 television feature can be used to display TV field sig nais 1 To do so proceed as follows Set the TRIGGER MODE selector to TV FIELD and set the SEC DIV control to 2 ms Apply the television signal to either the CH1 or the CH2 input connector and set the VERTICAL MODE selector to display the channel used For positive going TV signal sync pulses set the TRIGGER SLOPE to and rotate the LEVEL control fully counter wise Sometimes it may be necessary to move the LEVEL control slightly ciockwise to obtain stable triggering Set the appropriate VOLTS DIV control to display one divi sion or more of composite video signal To change th
44. nded 400 K RE 0 sem aa OT TT EE eme l Mt Zr m Buat ka amp 100i x A pci NJ 3 50 E MEE mem ae S EE 25V E 12 gt 20 1 A z ma Los m T NM eS a em 10 kHz 50 kHz 100 kHz 500 kHz 1 MHz 100 MHz FREQUENCY 6717 15 Figure 5 1 Maximum input voltage versus frequency derating curve for CH OR X CH 2 OR Y and EXT INPUT connectors 5 8 2205 Operator s Qe Mr SECTION 6 2205 Operator s riese TANANG AA EE AAN AA A ne Nan Maa EIN i i sa Options and Accessories This section lists the standard accessories including Tektronix part numbers that are shipped with each instrument It also briefly describes the options that can be included with the origi nal instrument order If you wish to obtain any of these options after recelving your instrument use the accessories list con tained in Tables 6 1 and 6 2 For additional information about instrument options and other optional accessories consult the current Tektronix Product Catalog or contact your local Tektronix Sales Office or distributor STANDARD ACCESSORIES Each instrument is shipped with the following standard accesso ries Quantity Description Part Number 2 Signal Adapters 103 0275 00 1 Operator s Manual 070
45. ne sweep of Channel 2 Alternating Coupling AC Static signal components are blocked and only the alternating components of the input signal reach the channel BOTH Displays CH 1 and CH 2 in ALT CHOP or ADD mode CAL Changes the variable scale factor up to 2 5 times the VOLTS DIV setting Channel 1 CH 1 Displays only Ch 1 on the screen Channel 2 CH 2 Displays only Ch 2 on the screen Channel 2 Invert CH 2 INVERT inverts the polarity of CH 2 See OTHERS for polarity CHOP The scope will draw part of CH 1 then part of CH 2 by switching back and forth 2205 Operator s C 1 Channel 1 Volts Division CH 1 VOLTS DIV This switch is the scale factor for CH 1 Channel 2 Volts Division CH 2 VOLTS DIV This switch is the scale factor for CH 2 Direct Coupling DC All components of the input signal reach the input channel GROUND Shows where the zero level will be located when shifted to AC or DC Normal NORM CH 1 and Ch 2 both have the same polarity when set to NORM See OTHERS for polarity POSITION Moves the trace vertically on the screen HORIZONTAL CONTROLS CAL Reduces the SEC DIV by up to 2 5 1 Ground receptacle Provides safety earth connection to signal source Magnified times MAG X1 Magnifies the SEC DIV by 1 Magnified times 10 MAG X10 Magnifies the SEC DIV by 10 POSITION Moves the trace horizontally on the screen PROBE ADJUST Provide
46. nstrument In the absence of a triggering signal no sweep occurs Use the NORM mode for viewing infrequent events and erratic signals SGL SWP When this mode is selected the sweep is triggered only once Press the RESET button once to arm the trigger cir cuit and illuminate the READY indicator When a trigger event occurs the sweep runs once and the READY light extinguishes Use the SGL SWP mode to display or photograph nonrepetitive or unstable signals TV FIELD This mode triggers the sweep at the beginning of a television field To change the TV field being displayed you must interrupt the trigger signal by setting the input coupling switch momentarily to GND then back either DC or AC until the desired field is displayed 2205 Operator s 2 44 Operation To display Field 1 and Field 2 at the same time connect the same television signal to both the CH 1 and CH 2 inputs set VERTICAL MODE to BOTH and ALT and set the SEC DIV control to 0 5 ms or faster sweep speed If you magnify the vertical display beyond the graticule the trig ger may be degraded To avoid trigger overload use either CH 1 or CH 2 for display and use the EXT INPUT channel with an appropriate video signal as the trigger source A composite sync signal can be used for the trigger source as well as com posite video Source Choose a single channel as the trigger source to correctly dis play the timing relationships between two
47. of 9 steps Accuracy 3 Variable Control Range Continuousiy variable and un calibrated between step set tings Increases deflection factor by at least 2 5 to 1 Step Response Rise Applicable from 5 mV per division Time to 5 Y per division Rise times calculated from 0 35 BW 5 C to 35 17 5 ns or less 0 C to 5 C and 23 3 ns or less 35 C to 40 0 2205 Operator s 51 Performance Characteristics TABLE 5 1 cont d Characteristics Performance Requirements VERTICAL DEFLECTION SYSTEM cont d Bandwidth 3 dB 5 C to 35 C 0 C to 5 C and 35 C to 40 C AC Coupled Lower Cutoff Frequency CHOP Mode Switching Rate Input Characteristics Resistance Capacitance Maximum Safe Input Voltage DC or AC Coupied Common Mode Rejection Ratio CMRR Trace Shift with VOLTS DIV Switch Rotation With VOLTS DIV Variable Control Rotation With Channel 2 Inverted Channel Isolation 5 2 20 MHz or more 15 MHz or more 10 Hz or less at 3 dB 500 kHz 30 1 MO 32 25 pF 2pF 400 V dc peak ac or 800 V ac p p to 10 kHz or less At least 10 to 1 at 20 MHz 0 75 division or less Variable control in CAL detent 1 0 division or less 1 5 divisions or less Greater than 100 to 1 at 10 MHz 2205 Operator s nm EXT 10 Source At least 16 V 32 V p p Performance Characteristics TABLE 5 1 cont d Characteristics Perfo
48. ps for using the controls to obtain the most effective displays and to make the most accurate mea surements Vende 2208 Operator s 2 1 Pamana Operation Table 2 1 Summary of Controls Connectors and indicators Recommended Use 1 INTENSITY Adjusts trace Compensate for ambient brightness lighting trace speed trigger frequency BEAM FIND Compresses display Locate off screen to within CRT limits phenomena FOCUS Adjusts for finest Optimize display trace thickness definition TRACE Adiusts trace Compensate for sarth s ROTATION parallel to center magnetic field line 2 4 5 POWER Turns power on Control power to the and off instrument Power iliuminates when Determine power indicator power is turned condition 7 8 on VERTICAL Moves trace up Position trace vertically OSITION or down on screen and compensate for dc component of signal CH 1 BOTH Selects signal View either channel inputs for display independently or both channels simuitaneousty EE O ele nN NORM Provide for differential INVERT CH 1 CH 2 or summed CH 1 CH 2 signals when ADD is selected inverts the Channel 2 signal display ADD ALT ADD shows alge CHOP braic sum of CH 1 and CH 2 signals ALT displays each channel alternately CHOP switches be VOLTS DIV Display summed or indi
49. reference signal to the CHT input connector and ap ply the comparison signal to the CH2 input 4 Set both VOLTS DIV controis for a display of about five divi sions 5 Set VERTICAL MODE to BOTH then select either ALT or CHOP depending on the frequency of the input signals 6 If the two signais are opposite in polarity set the middie VERTICAL MODE selector to CH2 INVERT to invert the Chan nei 2 display 7 Adjust the TRIGGER LEVEL control for a stable display 8 Set the SEC DIV control to a sweep speed that provides three or more divisions of horizontal separation between measurement points on the two displays Center each of the dispiays vertically see Figure 3 7 3 12 2205 Operator s Nerens osese Applications CHANNEL t REFERENCE CHANNEL 2 3 1 MEASURE H TIME FROM ua a e t nn l i LI HORIZONTAL DIFFERENCE N 6717 10 Figure 3 7 Time difference between pulses on time related signais 9 Determine the horizontal difference between the two signal measurement points and calculate the time difference using the following formula horizontal SEC DIV difference X control Time _ divisions setting Difference magnification factor EXAMPLE In Figure 3 7 the SEC DIV control is set to 50 us per division and HORIZONTAL MAG is set to X10 The horizontal difference between waveform measurement points is 4 5 divi sions Time _ 50 us div x 4 5 div _ Difference 10
50. rm fidelity in some cases a separate ground from the unit under test to the ground receptacle on the oscilloscope front panel can reduce interference from low frequency hum and noise For rough checks of larger signals such as 5 V logic a ground lead sepa rate from the probe or even the safety ground connection which is shared with the unit under test may work for a signal ground Fast signal transitions will be highly distorted and extra neous noise will be induced without the probe ground connec tion and or with extra ground connections from the 2205 to the circuit being tested Probe Compensation Optional 10X Probe Misadjustment of probe campensation is a common source of measurement error Due to variations in oscilloscope input characteristics probe compensation should be checked when ever a 10X probe is moved from one oscilloscope to another or from one channel to another on the same oscilloscope Always compensate the probe to the channel on which it will be used See the procedure in Section 4 Checks and Adjustments Probe Handling Optional 10X Probe Both the probe and the probe accessories should be handied carefully to prevent damage Striking a hard surface can dam age both the probe body and the probe tip Exercise care to prevent the cable from being crushed kinked or excessively Strained 2205 Operator s 2 13 n
51. rmance Requirements TRIGGER SYSTEM Trigger Sensitivity P P AUTO TV LINE and NORM Modes 30 MHz Internal Signal 1 0 div External Signal 150 mV Lowest Usable 20 Hz Frequency in P P AUTO Mode TV FIELD Mode 1 0 division of composite sync External Input ES Resistance 1MQ 410 EP Capacitance 25 pF 2 5 pF Maximum Voltage 400 V dc peak ac or 800 V ac p p at 10 kHz or less Trigger Level Hange NORM Mode 15 divisions referred to the appropriate vertical input EXT Source At least 21 6 V 3 2 V p p penal 2205 Operator s 5 3 Performance Characteristics TABLE 5 1 cont d Characteristics Performance Requirements HORIZONTAL DEFLECTION SYSTEM Sweep Rate Calibrated Range 0 5 s per division to 0 1 us per division in a 1 2 5 sequence Magnification extends maximum usable sweep speed to 10 ns per division Accuracy Magnified X10 15 C to 35 4 0 C to 40 C 5 Variable Control Range Continuously variable and un calibrated between calibrated step settings Decreases cali brated sweep speeds at least by a factor of 2 5 Sweep Linearity Magnified X10 7 Position Control Range Start of sweep to 10th division in X1 and to 100th division in X10 will position past the center vertical graticule line Registration of Unmagni 0 2 division or less aligned to fied and Magnified Traces central vertical graticule line 5 4 2205 Operator s Performance Character
52. s Low cost Motorized Portable Instrument Cart 2205 Service Manual Part Number P6103 P6130 P6008 P6062B P6009 P6015 P6021 P6022 A6302 AM503 A6303 AM503 134 P6202A MOTA A6901 A6902B 1107 016 0785 00 1105 1106 C 5C Option 04 C 7 Option 03 and Option 30 K212 070 6716 00 2205 Operator s siese APPENDIX A Magnified Sweep Speeds Magnified Sweep Speed SEC DIV Time Division Setting X10 0 55 50 ms 0 28 20 ms 0 18 10 ms 50 ms 5 ms e 20 ms 2 ms a 10 ms 1 ms 5 ms 5 ms 2 ms 2 ms T 1 ms mE 1 ms 5 ms 50 us E 2 ms 20 ps n 1 ms 10 ps baw 50 ps 5 us 2 20 us 2 us 10 ws 1 us 5 HS 5 ps 2 HS 2 NG 1 ps 1 HS 8 US 50 ns 2 us 20 ns 1 ps 10 ns OZ 2205 Operator s gg G APPENDIX B Repackaging For Shipment If this instrument is to be shipped by commercial transportation it should be packaged in the original manner The carton and packaging material in which your instrument was shipped to you may be retained for this purpose If the original packaging is unfit for use or is not available re package the instrument as follows 1 Obtain a corrugated cardboard shipping carton having inside dimensions at least six inches greater than the instrument dimensions and having a carton test strength of at least 275 pounds ma ff itis to be shipped to a Tektronix Service Center for service or repair attach a tag to the instrument showing the
53. s a square wave for use as a reference when adjusting compensation on 10X probes Seconds Division SEC DIV Lets you select the rate at which the beam sweeps across the Screen TRIGGER CONTROLS Channel 1 CH 1 Selects CH 1 signals to trigger the time base Channel 2 CH 2 Selects CH 2 signals to trigger the time base External EXT Selects external signals to trigger the time base External 10 EXT 10 Selects external signal divides it by 10 and connects it to the trigger circuit LEVEL Determines signal level at which the trigger will occur C 2 2205 Operator s S PA M EE e ese LINE Another trigger source the power line Normal NORM Allows selection of any TRIGGER LEVEL within approximately 115 divisions Peak to Peak Automatic P P AUTO Limits TRIGGER LEVEL to a range determined by peaks of signal If no signal appears in about 5 ms the sweep starts on its own to show a baseline RESET This button is used only in SGL SWP Mode to reset the sweep See TRIGGER for single sweep Single Sweep SGL SWP A mode in which when a trigger oc curs only one sweep will run SLOPE Determines whether the trigger point will occur on the raising or failing edge of the signal Trigger Ready TRIG D Lights when the sweep is triggered Television Field TV FIELD Trigger on tv fields Television Line TV LINE Trigger on tv lines Vertical Mode VERT MODE Trigger sourc
54. that allows the waveform in Step 4 to be displayed on screen 2205 Operator s 3 3 KAKA U Ee EE EE EE EE araras Applications Adjust the TRIGGER LEVEL control to obtain a stable display Set the SEC DIV control to a position that displays at least one cycie of the signal Measure the divisions of vertical deflection between the ground reference line and the point on the waveform at which the level is to be determined see Figure 3 2 ZERO VOLT REFERENCE Figure 3 2 Instantaneous voltage measurement Calculate the instantaneous voltage using the following for mula instan vertical polarity VOLTS DIV taneous deflection x or x setting Voltage divisions 10X Probe if the signal adapter is being used for the measurement use the 1X VOLTS DIV setting 2205 Operator s PP t Applications EXAMPLE In Figure 3 2 the zero voit reference is as shown at the center vertical graticule line a 10X attenuation probe is be ing used and VOLTS DIV is set to 2 V 10X PROBE Two un known voltage leveis A and B are marked on the waveform A is 1 5 divisions above the zero voit reference level and B is three divisions below the zero volt reference level What are the respective voltages of levels A and B Substituting the given values instantaneous Voltage A Instantaneous Voltage B 1
55. tial for safe operation Grounding the Product This product is grounded through the grounding conductor of the power cord To avoid electrical shock plug the power cord into a properly wired receptacle before making any connections to the product input or output terminals A protective ground con nection by way of the grounding conductor in the power cord is essential for safe operation Danger Arising From Loss of Ground Upon loss of the protective ground connection all accessible conductive parts including knobs and controls that may appear to be insulating can render an electric shock Use the Proper Power Cord Use only the power cord and connector specified for your product The power cord must be in good condition 2205 Operator s y Operator s Safety Summary Read Section 1 for power cord and connector information Use the Proper Fuse To avoid fire hazard use only a fuse of the correct type voit age rating and current ana as en on the back of your product and in Table 6 1 Do Not Operate in an Explosive Atmosphere To avoid explosion do not operate this product ih an explosive atmosphere Do Not Remove Covers or Panels To avoid personal injury do not remove the product covers or panels Do not operate the product without the covers and panels properly installed vi 2205 Operator s angas Operator s Safety Summary THE 2205 OSCILLOSCOPE The TEKTRONIX 2205 Oscilloscope is a
56. tube ort screen are the Display controls Display controis affect the display but not the waveform These controls adjust brightness and focus of the trace align the trace with the graticule and help you quickly find off screen signals ize Like any oscilloscope the 2205 draws a graph gf voltage as a function of time The VERTICAL section enclosed within shaded gray lines contains the controls that define the voltage or verti cal axis of the display Also a part of this section are the two BNC input connectors through which you appiy the signals that vou want to view The HORIZONTAL controls are to the right of the VERTICAL sec tion Horizontal controls set and move the time or horizontal axis for the displayed traces On the extreme right of the front panel enclosed within shaded green lines is the TRIGGER section Trigger controis define the signais and the conditions needed to initiate or trigger every sweep across the time axis An indicator light TRIG D comes on when the sweep is triggered A BNC input connector at the bottom of the TRIGGER section lets you apply either an external trigger signal or an external Z axis display intensity control sig nal CONTROLS CONNECTORS AND INDICATORS Table 2 1 lists ali the controls connectors and indicators on your 2205 Oscilloscope Following Table 2 1 a short procedure describes how to get a display The remainder of this section offers suggestions and ti
57. visions 10X Probe tif a 1X probe is being used for the measurement use the 1X VOLTS DIV setting 3 2 2205 Operator s Applications EXAMPLE In Figure 3 1 the measured peak to peak vertical deflection is 4 4 divisions using a 10X attenuator probe with the VOLTS DIV switch set to 5V 10X PROBE Substituting the given values Vp p 4 4 div x 5 Vidiv 22 Y instantaneous Voltage To measure the instantaneous voltage level at a given point on a waveform referred to ground use the following procedure 1 Apply the signal to either the CH1 or the CH2 input connec tor and set the VERTICAL MODE selector to the channel used 2 Verify that the VOLTS DIV variable control is in the CAL detent and set input coupling to GND 3 Vertically position the trace to the center horizontal graticule line This establishes the ground reference location NOTE If the measurements are to be made relative to a voltage level other than ground set the input cou pling switch to DC and apply the reference voltage to the input connector Then position the trace to the horizontal reference line 4 Set the input coupling control to DC Points on the waveform above the ground reference location are positive points below are negative NOTE if using Channel 2 ensure that the center VERTI CAL MODE selector NORM CH 2 INVERT is set to NORM 5 If necessary repeat Step 3 using a different horizontal ground reference line
58. y 2205 Operator s ii Operator s Safety Summary OPERATOR S SAFETY SUMMARY The general safety information in this summary is for both oper ating and servicing personnel Specific warnings and cautions found throughout the manual where they apply do not appear in this summary Terms In This Manual AS CAUTION statements identify conditions or practices that could result in damage to the equipment or the property WARNING statements identify conditions or practices that could result in personal injury or loss of life Marked on Equipment CAUTION indicates a personal injury hazard that is not im mediately accessible as one reads the markings or a hazard to property including the equipment itself DANGER indicates a personal injury hazard that is immediately accessible as one reads the marking Symbols in This Manual A This symbol indicates applicable cautionary or other information For maximum input voltage see Table 5 1 2205 Operator s Naa e an Linee Operator s Safety Summary As Marked on Equipment y DANGER High voltage D Protective ground earth terminal A ATTENTION Refer to manual Power Source This product is intended to operate from a power source that does not apply mors than 250 V rms between the supply con ductors or between either supply conductor and ground A pro tective ground connection by way of the grounding conductor in the power cord is essen

Tektronix Cordless Sander 2205 User's Manual

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