Oscilloscope Digital Storage Oscilloscope Operation Manual
05- 30200/400/600 Digital Storage Oscilloscope Operation Manual • 0· , · ' • . • ' " , . . , ' • •" ., fi\ V 11" '. ., . ' •• •• ", . ' . ' • • , .' • • • • , . , . '. " ---;::.. :;:;;;. ...... ~ () !Q)l @ ez Digital Co.,Ltd. :;::::.~ =.J :;:;:. ......
DECLARATION OF CONFORMITY according to ISO/lEe Guide 22 and EN 45014 Manufacturer 's Name: E Z Digit a l Co.. Ltd. Manufacturer's A ddress: 222- 28. Nae -dong, Ojeong - gu. Bucheon -s i, Gy ecnggi-do R.O.K , 421 -16 0 Declares tha t the product : Product Name : OSC ILLOSCO PE Model Numbers: 05 -3 0200 , 05 -30400 , 05-30600 , Date : Aug. 18. 1995.
Safety Summary Safety Precautions Please take a moment to review these safety precautions. They are provided for your protection and to prevent damage to the oscilloscope. This safety informatio n applies to all operator and service personnel. Caution and warning sta tements. CA UT ION Is used to indicate correct operating or maintenance procedures in order to prevent damage to or destruction of the equ ipment or ot her property.
Introduction T hank you for purchasing a E Z product. Electronic mea su rin g inst ruments pr odu ced by EZ Digita l are high tec hnology products made und er strict qu ality control. We guarantee their exceptional precision and utmost reliability. For proper use of th e pr odu ct plea se rea d thi s user manual ca refully. ~ EZ Digital CO. .Lt d, Note I. T o fully maintain the precision and reliability of the product use it within the range of standa rd setti ng (temperature W'C - 35·C .
Warranty Warranty service covers a peri od of o ne year from th e date of original purchase. In case of technical failu re within a year , repair service will be prov ided by our service center or sales outlet free of cha rge. We charge customers for repa irs a fter the one-year warranty period has been expired. Provided that agai nst any failure resulted from the user's negligence, na tural di saster or accide nt, we cha rge you for repairs regardless of the warran ty period .
- C O NTE NTS - l. D escrip tio ns of th e prod uc t II \-1. Introd uctio n II 1-2. Specificatio ns 13 1-3. Points to bc chec ked prio r to usc 17 1-4. Accesso ries 18 2. Operating in structi ons 2-1. Function of eac h block 2-1-1. Displ ay a nd power blocks 2-1-2. Verti cal amplifier block 2-1-3. Sweep and trigger blocks 2-1-4. Read o ut 14 21 21 ····· 2 1 23 ······ 26 2-1-5. Sto rage block 27 2-1-6. Mi scellan eou s featu re 28 2-2. Basic func tions and measur ement 29 2-2-1.
2-2-5. (4) Addition and differe nce measureme nt 44 ( 5) X-Y measur em ent ·· 45 (6) Delayed-tim e axis o pera tion 46 Digital storage mod e function 49 ( I) Normal storage mode ( MO DE) · 49 ( 2) Equivalent sampling mod e 49 (3) Roll mode 51 (4) Single mod e 52 (5) Hold mode 53 ( 6) Save mod e 53 ( 7) Save mem ory display ( RECALL) 53 (8) X-Y plot ou tput 54 ( 9) Ho rizontal mag ni fication di splay 54 ( 10) Int erpolation 57 ( I I ) ALT MAG .
3. X-Y digital o u tp ut 3-1. Application X-Y plott er 80 3-2. Pl otter specificatio n 80 3·3. Connection R5 3-4. Setting 85 3-5. Operation 4. RO . ··· · 90 3-6. RS-232C interface 90 3-7. Major troub le, 90 Serial co m m unication us ing R S-232C 91 4-1. Introduction ..···· 9 \ 4-2. Specification 91 4-3. Connector pin arrangement and signal description ....... . 91 4-4. Connectio n 93 4-5. Operation and command 94 4-6. Transmission/reception data format 96 4-7.
5. User m ain ten ance guide JJI 5-1. Cl eaning J II 5-2. JII Calibration 6 . OS-3IXX)DSRS diugrum-, J 12 6- 1. External views J 12 Block d iag ram II .' 6-2.
1. Description of product 1-J. Introduction This product OS-3000DSRS is the 2 channel digital storage oscillosco pe which is equipped with ND converter. It combines the benefits of digital scope to measure, store, interpret and commu nica te the rapid trace, with the benefits of ana log scope to measure the wide band width, 2 tim e ax is generato r, de lay sweep and separated TV trigger signa l.
(5) Output It uses bot h RS-232C in terface fu nc tio n to input/ output the d igital data to th e perso na l com pu ter, and RS-232C to conduc t screen hardcop y thro ugh digital plott er. It also interprets and reco rd s the stored data. (6) CRT an d cursor reado ut It ca n pro mptly perform the operation and meas urement using both th e CRT readout func tion to display the set info rmatio n of panel and th e cursor readout function to display th e voltage difference (8 V) .
1-2. Specifica tions Spec. OS-J0201l Model OS-J0400 OS-JOWO -CRT 1. Configuration and useful screen 2. Accelerating potential J. Phosphor 6-inch rectangular screen wi th internal graticulc ; Sx 10 DiV ( 1div= [em ), marking for measurement of rise time. 2mm subdivisions along the central axis. +1.9kV approx. + 11.5kV approx . (ref. cathode) (ref. cathode) PJ I (standard) 4. Focussing possibletwith autofocus correction circuit) provided 5. Trace rotation 6.
.- Spec. OS -.' 0 20D --------______ Mo del * Horizontal Deflection I. Display modes 2. Time base A OS -.'060D OS -.'O·jOD A, A int, B. B TRIGD. X-V O.2i Jiv 10 O.2sid iv in 19 calibrated steps, 1-2-5 sc- 0. 1P~/ di v 10 O.2s-'uiv in 20 'sh qucncc. uncalibrutcd continuous control bcrwccn calibra ted steps 1-2-5 scsteps at least 1 : 2.5 quence uncalibrated continuous control between steps at least 1 : 2.5 Hold-off time 3. Time base B Delayed sweep Delay time jitter 4.
Model Spec. • Digital sto rage functio n I. Display memory 2. Sav'c memory 3. Acquisit ion mem ory () S - Jll~O() (lS - 'ON) ) OS ·.'O·IO» 1()l)l)Wtlnh /C H I00:IWortJ... elf »: 2 Sus/ div - 20sl d iv : 2000 word , IC Ii ! Susl d iv -20sl di v : 2000 wordsi CH 0.2usld iv - 2sl d iv : IOOOword s/ CIi o .lu, l d iv -2 usl d iv : IOOOword siCH - 2 ~ po i nL t1 i\ 4. Vert ical resolut ion 5. Horizontal resol ution lOOPoint/div 6. Maximum sapmling rate 20 Msl s 7.
Sf'L". \luJd - * Calibrator'(probe ~ IJj ) approx. Juty ral l\l * Power Supply I . Voltage range 2. Frequency 3. Power consumption OS · .1( 01)1) OS -.10.1(1) ()S · .l O~ ()1> l U I, fn.."Juclli.) ', 05\' (.t]% ) 50% ' q U. I H.' \ \ ;j\ I..' voltage range I()()( 40 -I IOV)'AC" 120( IOK- I32V)/AC 220( 198 . 242 V)/AC 2.1(~207 · 250 V)iAC .. F , , '1 2A F2A IA F IA 50 I 1'011, ..ppm\ . 70W . upprov . 711\ \ appro, . 70 W. * Ph ys ic a l C haracteristics I. Weight 2.
1-3. Points to be checked prior to use Comply with the following procedures for safety and to prevent damage to the product prior to operating this product. 1-3-1. Lin e voltage selection Before use, check the voltage. This in strument mu st be operated with the correct line voltage selector switch setting to prevent damage in reference to table I-I. To change the lin e voltage selection : 1. Decide the voltage range and fuse in reference to table I- I. 2.
1-3-2. Install ation and han dling precautions Wh en placin g the OS-3()()()DSRS in service at your workplace, obs erve the following precautions for best instru me nt performan ce and longest service life. 1. Avo id placi ng this instru ment in an extremely hot or cold place. Specifica lly, don 't leave thi s in strument in a close car, exposed to sunlight in midsummer, or next to a space heater. 2, Do not use this instrumen t immediately after bringin g it in from th e cold.
2. O perating In struc tions (A) FRONT PANEL ITEMS 35 __ ......... " ....... "'.... ._"' ........ .."'..-..,..4 .'''' _..... _.' '' WAItN'N(; 20 , C......ToO/< ...-s ' .... . ..........,.""" .".... _ ~ ,. '" 7 8 (B) REAR PANEL ITEMS Fig. 2-1 .
~ r~-- ~ I Ii 'ITL r-' , - ---f"-----+--- ~ . .... o q I ~~ .~ ... _- , " I 0 -· -' °' = = = - _ .. .~ ...•. I l~~ I -, r-C::I . • -........c:::J 4 • .. " "' - . -§g o. ::OU ' , -~'~ , 05·30200 CD .'0 . ©~ ... - - . , '" ~"",,~~, CH 2 1!lIS~ ~ ",:, il:h. -, 05·3 0400 ~ '- _ . " n._A'.... ...::'"A: .... '-._- ' _ ~~~ .c - . ClCJc:::l= ..." ' 0 0 1/" c , -- - -- I -, I ;~ " .) CHI:Z: _ - -._-..- I • _- i I _. ~ ~ ~,!IZ;.? _. . ~-~ 9.(I) ''''. ~ ~......
Thi s sec tion describes the mea surement proced ures and methods utilizing a variety of basi c informa tion s and function s need ed for operatin g this in strument. 2-1. Functio n of each block The numbers shown in the following descrip tions rep resent each terminal indicated on F ig. 2-1. 2-1-1. Display and power bloc ks [ I ] POWER SWITCH [ 3] INTENSITY [ 4] FOCUS [ 5] TRACE ROTATION [ 6 ] SCALE ILLUM [ 7 ] VOLTAGE SELECTOR [ 8 ] POWER CONNECTOR Pu sh in to tum instrument power on and off.
AC GND DC [ 13][ 14J VOLTS/DIY [ 15J [ 16J VARIABLE [ 17J[ 18J POSITION PULL CH2. lNV[18J [19J V MODE SWITCH CHi CH2 Ca pac itor betwee n inp ut connector and vertical a mplifier interrup ts an y DC compo nent of the signal. Co nnects inp ut co nnector of verti cal amplifier to the ground , thu s establishin g GND as a referen ce point. By making direct connec tio n between in put co nnector and verti cal amplifier, input signal is directly co nnected to vertical ampli fier.
DUAL ADD [ 20J CHI OlIT CONNECTOR Two signa ls th ai a rc input to CH I a nd C H2 a ppear o n th e C RT simulta neo usly. C H O P : TIM E/ DI Y 0.2s-Sms ALT : TIME /DIY 2ms -0.21'i (. OS-3060 lJ : 0.1 us ) Displays the algebraic sum of C H I and CH2 signals. Provides freq uency counter or other devices with a part of signals that arc input 10 CH I by having them amplified. 2-1-3. Sweep s and trigger blocks [2 lJ HORIZONTAL DISPlAY A AlNT To select the sweep mode.
[ 22J A TIME/DlV To select eithe r the calib rated sweep rate of the main (A) tim ebase, and X-V operatio n ( )S - J() ~()J ) . OS -30.fOD ) for dcluycd-vwccp operation . To select the calibra ted sweep ra te of the calibrated ( B) timebase. [ 24J DELAY TIME POSmON To dete rm ine the exact sta rting point within th e A timebas e delay ran ge at wh ich the B timebase will begin sweeping. [ 25J A VARIABLE Being used for hav ing A sweep time varied continuou sly from the calibrated position.
[ 27J TRIGGER MODE AurO NORM TV-V TV-H [28J TRIGGER SOURCE CHI CH2 LINE EXT Selects the sweep triggering mode . Th e swee p occurs au tomaticall y. When there is a triggering signal, th e sweep triggered normally is obtained and the waveform stop s. Where there is no signal and the trigger IS not made, the sweep still occurs automatically. This position is convenient in general use.
[ 29J HOLD OFF [ 30J TRIG LEVEL TRIGGER SLOPE [31J EXT TRIG IN This one makes complicated signa l triggerred certa in ly by cha nging the HOLD O FF time of the main sweep. It is also effective in triggering such complica ted signals as high freque ncy signal, irregula r signa l or digita l signa l, etc. by extending sweeping time. Adj ust it slowly for the stab ilized triggering. It is normally used after having it fully rot ated counterclo ckwise.
® s», toT, l/toT C9 ON/OFF : This switch switches among '" Y, '" T, 1/'" T modes. : Pressing {;:, Y and SELECT toggles the readout func tion ON or OFF. : Moves the selected cursor upward , downward, right or left. 2-1-5. [ 34] STORAGE STOR AGE ~ ODE SlORAG£ YENU HotD SA't£ Cl Cl Cl CJ S1NCt£ SElECT PLOT RECAll Cl Cl Cl Cl Fig. 2 · 5 . Front panel storage mod e switch is> STORAGE SWITCH CD MENU SWITCH : When LED goes out, it performs the normal realtime oscilloscope function.
Gil HOLD SWITCH ® SAVE SWITCH CD SINGLE SWITCH CD SELECT SWITCH ® PLOT SWITCH CD RECALL SWITCH : Pre ssin g thi s switch sto ps sampling, and the waveform displayed on the screen stops and LED lights ON. Pres sin g thi s switch again releases HOLD state, a nd sampling begin s. : This switch stores the display waveform in the storage memory. Th e disp lay waveform is stored by this switch in H OLD state. In no n-HOLD mode, o nly the switch state is cha ntged .
[ 36J CAL TERMINAL O utp uts th e sq ua re wave (O.5V, Ik Hz) to ca libra te th e probe and vertica l am plifier. [ 37] GROUND CONNECTOR Provides an a ttac h me nt point for a sepa ra te ground lead . 2-2. Basic measurements 2-2-1. Co n nec tio n o f mea suring signals T h ere a re th ree different meth od s for obs erving signals by means of the osc illos co pe as foll ows : I. M eth od using lead wire 2. Method using coaxial cable 3. M eth od using probe for oscilloscope I.
3. Method using prob e for oscillosco pe Usi ng a probe is most preferable to any other alternatives wh en performing the measurement o nto ci rcuits. The prob es arc available with IX (direct connection) position and lOX (atten uation) position. As thc input signal att enuates by 1/10 with the input impedance of oscillosco pe with prob e increased at lOX position, measurement unit (VOLT/ O IV) mu st be multiplied by ten ( 10). ( e.g. it becomes 50mV X 10 = 0.05V in 50mV/OIV) .
3. Pres s in the POWER switch [1 J. About 30 seconds later , rotate the INTEN [ 3] control clockwise until tbe trac e appears. And then, adjust brightness so as to make it suitable for observing. A burn-resista nt material is used in the CRT. However if the C RT is left with an extremel y bright dot o r trace for a very long time, the screen may be damaged. Th erefor e, if a measurement requires high brightness, be certain to turn down the INTEN co ntrol immediately afterward.
R( TRA(l ABl ( HOO k HOO K COVl R ~ GROUND CLIP CAPACITANCE CORRECT ION TR,MM( R CQR;UC TlY C()'j P( NSAH O I .. ) PROBl UNDER COMP £HSATl D ill (tll H H CTS Of PROO£ COM PENSATION Fig. 2-6 .
2-2-3. Dat a d isplay (I) Real time mod e displa y Curso r measurement value I I [>- - / Cursor -. CD - - - - - - - - .
. 1 VIDIV r ->-r -0. -r1 -5 -r-m -r -s -1 I l I _ _ L __ l _ _ L __ L _ --.J [ BLANK • > : ® Xl CAL XI0 MAG UNCAL 1)ln X-V ope ration mode, X-V mode is displayed. and TIME/DIY setting data and B setting data disappear. 2) l n B sweep mode, B TIME is displayed and TIME/DIY selling data disappear. C ursor measurement disp lay T he meas ure d value between cursors is displayed.
(2) Storage mod e displa y Location of data displ ay o n C RT Pr e-trigger and curs or mea surement value ~ '--------1 1>- - - - - - - - - - - - - - - - - - - C ursor :::: -II------;:===+ Save A scale facto r Average. smoothing.
(1' C II I a nd C H::' ' '' CCp faC lor di spl ay r Pl- -r, OX - -r. ->-r -1 -r 0- -r- -r-V -1; I l I __ l __ l lD I __ l __ L _ _ l __ L _ Blank Prob e display lOX prob e PIOX IX probe PIX > * _J CAL UNCAL X5 MAG @ A and B sweep sweep factor display and X-V display 1<-- SIDIV ---->1 r --- r - -r - -r - -r - -1 > . 0.
® Curso r measurement value display The measur ed valu e between cursors is dis played. - - - - - >1 Measur ed value : Volt difference between lJ. V : -t- , - . mV, V, div two cursors for CHI and Dual a T : -l-, - , ns, !'S, rns, 5, div sweep waveform. 1/ lJ. T : MHz, kHz, ?, mHz, div lJ. V2 : Volt difference between two cursors for CH2 sweep waveform , lJ. V : Voltdifference between two cursors for ADD sweep waveform, lJ. V I lJ.
2-2-4. Real time mo de mesur ement (I) Single-t race mea surement Single-trace measurement is the mo st elementary function o f this measuring ins trume nt. Use this mo de when you intend to measure o ne single signal. Sin ce this instrument comprises two channels, j ust choose o ne of CH I and C H2. C H 1 has an OlITPlIT term inal [20], and it is desirable for you to use it when you intend to mea sure the frequency by mea ns of a frequency counter.
® If the signa l to be measur ed does not trigger or the measureme nt is diffic ult beca use of its weakn ess though the VOLT/D1V switch is positioned on SmV. pull the VARIABLE ( PU LL XS MAG ) [ lSJ [ 16]. At thi s time. where the VOLT/ON switch is set to SmV, it becomes lmV/O N and the frequency wide band width decreases to 7 MH z. However. the noi se increases on the trace .
@ If the two chan nels are o f th e same freque ncy. you can exactly initiate th e triggering with TR IG G ER SOU RC E switch [ 2s1 S,M "' '''IIH'1 . 1..... 1 \hI1.. ISVt< ,., 1..1 ( a) Co mpos itive video signa l I : , - '-- (b) TV-V coupling .1 I 1 I ~ m ~ mIIIl1T II II Ie , (c) TV-H coupling 1 r_~ r_TI , , I f-i I ! I r- I\... 1"- t '-, M I \I ., 'I ( d) SYN C polarity Fig . 2-7. 'TV si nc s ignal separation 40 1Il"",1, \'( "'1.AlI T'r ~_ u.
(3) Tri gger selectio n Triggerin g is the mo st co mplica ted o pe ratio n to perform fo r the osci lloscope becau se this instrum ent has man y requi rement s that have to be incid entall y applied. and it requ ires a n exact synch ronizatio n as well. CD Tri gger mod e selection Aut o trigger mod e : Sinc e the synchro nized sweep alwa ys appears. even th ough there exists no signal nor ha s the trigger adjusting been don e improperly granting that there exists a signal.
@ Trigger poin t selectio n The SLO PE switch determines wheth er the sweep shall start from the rise-starting poi nt or from the fall-starting po int. ( See Fig. 2-8) . Dep ressed switch represen ts the rise-start ing point and released switch indicate s the fallstarting point. Q) Tri gger level selection Thi s position represents the starting point of the signal which is input with either CH I or CH2. Th e signal starting point varie s as shown on Fig.
I ·I S I..1l1'... . ..1 POSI Tt.( POSITt y{ sco-r -, SlOl'{( '~ ~ ,/ ~t(.AT'Yl ~ C~lI i I I ) STAAuec ..\ N{ (,Al ' ';( SLoPE / 1 LI I 1/ II u 1L....,j (a) Sawtooth waveform I - IS lAIlTtl'C; - " I'«(,AT I';{ Sl ~ [ "'I STA8l { Il'ISll'C> I ~'~I " ' ~Lt Pf..> POflT "", ~;H J"".~ I ~ '- f- - j1.I S "' A l t ~ AT - POSlflY( Sl cP { - ( b) Square waveform Fig. 2- 8. Tr igger point select ion ll Y1l r-« Start Poi nt "'" NO'::;:... 0 -Fig. 2-9 .
(..0 Additi on and difference measurements The measurem ent of the additio n and di fference is it function representing o ne waveform by addin g two signals. Th e o peration o f the add ition (AD D) repre sent s the algebraic sum of the C H I and CH2 signals, and the o pera tion of the difference rep resents th e algebraic diffe rence between the C H I and C H2 signals. Measuring procedure of ADD of this instrument, OS · .1I1( ~ )I)SRS i-, as follows : I.
5. If the pop amplitude of the resultant trace is very small signa l, perform the measurement after havin g a large marking ma de on the screen displ ay with adjusting both VOLTS/DIY switches. The re is a nother method measuring the algebraic sum of the two signals of th is instrume nL That is the method performing the mea surement at the same time when pulli ng the CH2 Vertical POSmON control [ 18] on which 'PULL CH2 INY" is marked.
4. If you wish to move the waveform vertic all y rv axis). adjust the C H2 Vertical POSmON control [ ISJ and adjust the Hori zontal POSmON eonlrol [26 J whe n you inte nd to move the waveform hori zontally (X-ax is) . (The CH I Vertical POSITION control [17] docs no t opera te in the X-Y mode) . 5. The pha se of the vertical (Ysaxis) sign al can be inverted ISo' by pulling the C H2 Vertical POSITION kn ob [ ISJ. (6) Delayed-time base operation Th e OS·3IXXIDSRS co ntains two axis.
® Triggered B sweep In bas ic de layed sweep, the B tirncaxis is not triggered by a signal event, it begins whe n the main (A um ebase) sweep cross comparate level scuing by DELAY TIME PO S. knob . The o nly problem with this is that mai n tirn ea xis jitter becomes ap pa rent in the B sweep at higb rati os of A to B TIME/DN switch setting ( 100 : I and up ). To prevent th is, the B sweep can be triggered by the signal itself, o r a time-relate trigger signa l.
~ a. A TIM EBASE DIS PLAY INTENSIFI ED 'f , PORTlCN Of A SWH P l , .. T b. A IN TE NS IFIED BY B DIS PLAY , P H ~1 , , ... ( , , ... 7 1 , , C, B TIME BA SE DISPLAY , , , , , , , 'I' Fig. 2-10.
2-2-5. Digital storage fun ction Digital storage fun ction operates in the following sequence : (j ) NORMAL storage mode (NORM) CD NORMAL storage mode (NORM) displ ays th e waveform to be stored in the real mode. (%) Press storage switch. Q) Waveform sweeps all th e trigger devices depending on the setting of adjustor in the front size. The waveform to be stored is displayed on the CRT. It sweep speed is low, the retrieval and display of waveform require more time .
I 17 1/ t-, G ) The edge initially / rising or dr opping in trace (l eft end) may not be disp layed in the repeated mode range . V l- -f I I" I--- f\ In thi s case, measure the risign or dropping edge of waveforms appearing after the first one. Fig. 2-11. EQUIV mode @ It takes longer than 5 seconds to store input sign al below 1kHz (for 200Hz input) . ® The noise ma y be included whe n stori ng low freque ncy signal. It is desirous to use spherical wave with rising time sho rter than O.
(3) ROLL mode The displayed waveform flows to the left from the righ t. Correction point for new da ta and ROLL mode make it easy to measure the signal lower tha n 100H z or so. To stop the ROLL mode, press HOLD switch to hold the fina l waveform on CRT. < CRT • (~I • • I \ II \ I 1\ 11\ I \ I \ I \ I \ I \ I \ • \ 11 \ 1 \11 'II \) \ IJ .· Existing da ta · ,\ T ngger . Point for ." • • • ! Stored data new data. New dat a Fig. 2-12.
b) ROL L waveform co rrection ROLL mode is possible in high speed ran ge ( up to O.5s/d iv.l . If vertical mode is set to DUAL, the waveform docs not move smoothly at O.Ss/d iv. which occurs depending on the relati on between th e waveform da ta and display rate . In reality, the waveform is normal. (4) Single opera tion in NORM mod e With sto rage mod e set to NORM, pressing SING LE switch performs NORM mode srnapiin g, and renews th e waveform o n th e tube surface.
( 5) HOLD mod e P ressing HOLD switch in EQUIV, NORM o r ROLL mod e sets HOLD mod e. In thi s mode, sa mpling opera tion stops in each operating mode. When mod e enters into HOLD mod e, the waveform display data are continuously displa yed. When the waveform data displayed after HOLD mode are set, the waveform data can not be moved vertically. (6) SAVE operation (SAVE) Th e waveform data sampled and displayed in storage mode can be stored in the storage memory. Data which .
(8) x-v plotter output ( PLOT ) Waveform displ ayed in HOLD mode is sent to X-V plotter through RS-232C by pressin g PLOT Sf\V. (P LOT switch operates only in HOLD rnod e.) Refer 10 item 3 for more details. (9) Horizo ntal magnification displa y (Ti me axis MAG) Th ere are two horizontal maganification meth od s in storage operation: I. Ma gnification (X IO) by XIO MAG switch. 2. HOLD waveform magnification by T IME/DIV.
(j)) Wh en switch is released by pressing X IO MAG switch, it return s to the original wavefo rm. (2) HOLD waveform magnifiaction usin g TIME/DIY switch When storage waveform is displ ayed on the tube surface in HOLD mode, manipulating TIME/DIY switch make s it possible to co ntin uo usly magnify and displ ay up to ten times the TIME/DIY switch set value. Magnificati on is done from the center of original wa veform as in ( I) .
(i) Original l ms/di v TIMEIDIV HO LD mod e (ii) Rotating TIME / DIY switch. it magnifies two times with TIM E/ DlV = O.5ms/d iv. CH1 fV\II.NVINIM CH2 JLWJUUULU CHI fV\NV\ CH2 .JLJLJUUL CHI ~ CH2 -FL (iii) Rotating TIME / DIY agam switch, it magnifies ten times with TIME/ OlV = O.5ms/d iv. Fig. 2 ·1. HOLD wav eform magn ification @ This operation performs horizont al mag nification up to ten time s. Therefore TIME/OlV switch can set a tenth th e origina l waveform.
( 10) Interpo la tion As the horizontal magnification rate increa ses, sine wave loo ks stepwise and pulse wave goes ami ss. In this case, interpolation ma kes it ea sy to watch the wavefo rm . Interpola tio n is divided into linear and sine in terpo lat io ns .
In X I() MAG magnilicatio n, pressing X I() MAG after interpolation stops interpolation and norma l magnifica tion display enters into effect. In norma l magnification , pulling X 10 MAG after interpolation stops interpolation and X 10 MAG magnification display enters into effect. (II) ALT MAG mode An original waveform and magnified waveform arc displayed simultaneously.
(12) GO-NOGO mode The GO-NOGO judgement func tion is used to judge if te acquired signal is in the judgeme nt domain (Bo undary) sei on the CRT scree n. TI,e input sign als acquired in seq uence are compared with the boundary, When the results satify the conditions (CO M PARE. HO LP ). the se processing arc performed automat ica lly.
Using M ENU switch. it is possibl e to set interpo lation. waveform smooth ing ON/OFF in average horizontal magn ificatio n whenever pressing M ENU switch. [ P RO B], [ SMT H ], [ AVG], [ ROLL] and [ IT PL] appear on the top of CRT one by one and LED lights np. Pressing the switch aga in release s MENU mode, and LED goes out.
Q) AVERAGING setting mode (AVG) Wh en M ENU LED lights up a nd [ AVG] is dis played o n the top right of CRT, the number of averaging operations can be set. NORM 4 16 64 256 The number of averaging operations is changeahle using MENU selector switch . Pressing MENU selector switch changes NORM fro m 4 Ibm 256. The average waveform is displayed after data is obtained for the set sweep number.
Note ® In SIN position, set the amplitude of input signal below 8 DIV on CRT. If any signal with large amplitude is connected on the CRT, tortion is observed in the top and bottom sector of waveform . After waveform stops in ROLL mode, the interpolation operates depending on the selection between MAG XIO mode and TIME/DIV. If ROLL waveform does not stop, both the MAG XIO and interpolation modes do not operate.
® Menu display in the mode " the than MEN U mode In the modes other than MEN U, the setting informati on of the number of average and the smoothing is displayed as follows. t ;mOOthing on BLANK :Smoothing off [ SA: SAVE Memory A SB : SAVE Memory B BLANK:NoI average AV4:4times of average A V 16: 16times of average [ AV64 :641imes of average AV256:256times of average EQUIV :EQUlVALENT SAMPLING (0.2J.o/div(60MHLO.IJ"Jdiv) to 2",1div) NORM : NORMAL SAMPLING (5",1 div to0.15 1div) ROLL :ROLL MODE (0.
(\ 4 ) X-Y operation The internal time axis is no t used for ,X-Y measureme nt. X-V operation is carried out as follows : I. Set the vertical mode selector switch to DUAL. (If it is set to CHI, CH2 or AD D, erro r may OCCUR) . 2. Pressing HOLD switch in EQUIV, NORM or ROLL mode ent ers into HOLD mod e. Th en sa mpling operation stops whil e waveform display data arc displayed cont in uously. 3. Turn A TI MEIDIV switch [ 22J completely clockwise to X-V po sition.
2-3 M EASUR EMENT APP LICATIONS Thi s sectio n co nta ins the measu rem ent proced ures app lying basic functio ns of th is instrume nt. OS-302(J(). Though only so me o f them arc introd uced, we assure yo u that a variety of specific measurem ent can also be performed based on the said func tions.
5. Co unt the number of divisions of bo th the top a nd bottom of the wavefo rm and mu ltipl y the resulta nt number by the va lue of the VOLTS/DIV switch. th us result ing in the pea k-to-p eak voltage. For example, if the va lue of the VOLT S/D IV switch was set to 2V when the waveform same as that shown in Fig. 2-16 had bee n measured, it wou ld in fact be 8.0 Vp-p , (4.0d iv X 2.0V= 8.0V) 6. If the indicat ion of the vert ical magn ificatio n is X5, divide the measured va lue by 5.
5. Set the AC/ Gt'O/OC switch to DC. If the sig na l is po sitive ( ,1 ) . th e waveform appe ars abov e the gro und refe rence lin e and wh ere the sig nal is negative (- ) , the waveform appears below the ground referen ce lin e. CAlJrIO N : Wh ere the DC volta ge is relativel y greatly loaded co m pa red wi th the wave form, then mea sure the AC portion separately from others with selling th e AC-O C ,G N O switch to AC. 6.
.l : I I I , l ~L ( I 1\ \ I I i \ i . i I 1 \ . i i ! I 1\ I I 1\ I , T > H o ., J ) $ Fig. 2·16. PEAK·TO·PEAK VOLTAGE MEASUREMENT .l! I 11 VE RTIC AL DISTANCE I I ~ I I I I REFERENC E LINE I 5 DIV ~ Fig. 2·17.
2 -.3 -~ . Ti me Interval Measu rem ents The second most impo rtant mea sur ement o f the sync h rono us-swee p oscilloscope is the very measurem ent of time interval. Since the divisions uni formly ma rked on the C RT scree n are all calibrated to the time bases. the time interval mea surement is practicable, (I) Basic Techniq ue Th e basic techniq ue for measuring time interval is described in this sectio n. In additio n.
6. If you multiply the value measured in Item 5 above by the value set by the TIM E/D IV switch. the time you wish to meas ure will be obtained. If the T1MEIV RIAI:lLE knob 125 1i, pulled ( X I (J magnifi ed mod e) . divide the measur ed value by 10. (2) Period . Pul se Width. and D uty Cycle Measur ement If you mak e goo d usc of the measur ement based o n the basic tech nique. you can also measure th e perio d of pulse, pulse width , and dury cycle, etc.
A c 8 , 8 A r~~T-~ l I II , i I I i ! .1 1 f-t-....+ •1-++1 1 +1 I ~ 'H • i 'r I (a) r oms DI v IS ION lb ) 2mS DI v IS I ON Fig. 2-18 . TIME INTERVAL MEASUREMENT 2-3-3. Freq uency Measurement Whe n an accurate measurem ent is needed, a frequ en cy counter sha ll be used .
2-3-4. Ph ase Difference Mea surements Pha se differen ce in phase angle between signa ls can be measured using the du altr ace meth od of phase mea surement or Lissajous diagrammatic meth od of ph ase measurement in the X -Y mode of the oscilloscope. (J) Dual-trace Meth od This meth od work s with any type of waveform . Even if the waveform s are different from each other or the phase differen ce is great, the mea surement up to 20M Hz is practicable. Me asurement shall co mply with the following: 1.
S. If the phase difference is less tha n 500. the measurement can be p erformed closely usin g X IO magnificatio n mode. In this case. note that o ne major d ivisio n represen ts 5° . 9. For any ins trume nt equ ipped with REA DOUT func tio n. measuring T value after moving cursor as sho wn in the figure makes it possible to measure th e ph ase difference in the en tire cycle. (2) Lissajous Pallem Meth od This method can o nly be used where the waveform is sine wave.
L , f-- --IT [\v- 1\ f--lf V 1\ 1/ \ I 1\ /: \ -r-r-,x , , 1\ ' 1\ / , 1/ 'L i. "I , - , - J 1/ ~ } ~ II J , I ~ II Olff ( k( f(; ( 7 I 1/ II zoiv 360' --, Fig, 2-19. DUAL-TRACE METHOD OF PHASE MEASUREMENT ,1 , ~ ! . - j 1/ I, V 1/ L 1/ / , t> I 1./) 1/ V •I 1/.:;.: V ru 1 PHASE DIFFERENCE( angll! () = son - I A B ( a) PHASE ANGLE CALC ULATION /0 0 O' .,. \:j-, ,,,. reo- OJ' (b) LlSSAJOUS-PATIERNS OF VARI OUS PHAS E ANGLES Fig. 2-20.
Pha se difference measurement shall comply with the following proce dure: I. Rotate the TI ME /D IV switch fully cloc kwise and set it to the X-Y position. CAUTION: At this time, the trace on the CRT screen is so brig ht tha t it co uld often damage the C RT ph ospho r. So redu ce the trace intensity prop erly. 2. Make sure that C H2 POS ITION [I X] and PUL L X5 MAG knob r161 arc pus hed in. 3. Co nnect one sig nal to the C H I, X IN con nec tor 19 J, and anothe r signal to the C1I2.
10.For an y ins trument eq uipped with READ O UT functio n mcasu riug A and B values after moving c urso r as shown in the figure makes it po ssible to ca lc ula te the phase difference ( 8) . 2-3-5. Risctime Measurement Rise time is the time req ui red for the Icadi ng edge of a pul se to rise from 10% to 90 % of the tota l p ulse amplitude. Fallti rnc is the tim e required for the trai ling edge of a pul se 10 d rop fro m 90% of the total pul se amplit ude to 10%.
7. Co unt the number of horizontal divis ion s between th e 10% point (central venieal graticule line) and the 90 % point. 8. Multiply the nu mb er of divisions co unted in Item 7 ab ove by the numerical value of the TIM E/DIY switch, the n you wiU obtai n the measured rise tim e. Wh ere the mode is XI O magnifica tion, divide the value of the TIME/DIY setting by 10.
o.r: l" n I • f-s - f- • .u 10 QQ r-: .. ... +-+ ••• + \ . I i qH ~m o. i b ~ I .r a. BASIC DIS PLAY SET UP ,1 I • " ... . I C 1 ~ r: :-... """ . i ... .a 1 « .b " b. WITH HOPIZONTAL MAGNIFICATION Fig. 2·21.
3. X-Y plo tter d igi ta l o utp ut All the dat a displayed o n the screen is the ou tput appearing o n the X- Y planer co n nected with this instrumen t through RS-232C cable. The op/e ratio n of inst rumen t is describ ed as foll ows. Refer to the plotter operation manual attac hed to plott er for ins truc tio ns o n the X-Y planer operation . 3·1. X-Y plotter HP-GL (RS-232C specifica tio n) plotter 3-2.
lJ 0 x ~ I l - - - - - t - - - . - --_ . . p Ul :::> Jl --- -, ~ I-.-. ~~ 0 x F: '"" , ~ [:: < F-- 0 I I f--'> :3 -----1 .: UJ I ~ I f-'>. ~ [ 0 0 - . - .. :> 1 ~ + m \ f-J . < z 1."\ ::0 :s: ---- :> J '--- j I ~ 0 :> b j -1 f--'> < VJ :
t ~ f.-"- - ,/ j bn - u < \ < \ J I <------ ::> LJ r- - C - :> < < t> c..n '" \ Fig.
!, '"Ii +1 2V , l I { I I :\/ I ~ I I :I Ii , I I , , ~ ~~; I I L.J T i L \/ \ I L - 0.5 l1S NCRM L ~ r---. ~ l I V Om +4 I I ! I i PIOX! 0.2 ' . l OX G.Tl ! \ n d I L-- L.:.-J 1 - -• .. . . . I \ i SM 7\ r\ I, I 51 - . ... . I~ If\ /~ f\ I I NCRM . ... - . . . - .. .-' 51 V SM <, (\ / \ 1 \ \ / \ x,1 ~ V\ I I V I v 1\7 I k L i r D.~ rv ~ • - -"" : ! -l () I - '~. II I Pioxi 0.
:J> -~-~ $~ i ~ 'F ,,:-;,. .. .... ~-F=-:P ·. tI ;f -: ~ .J -~c: -- - ..... ro c- --'--- :J . C til - . --, ,= j.-.,:: ~; . -- I , t . - - : , __ - -=c ~J ~ _:J c: -- i .... . .. , 1 <: ~ <:: . <: -- Ul -T ~:I .,. I II c til -- I.---~ -- < I, .'-I _ ~F- - C'-~ D-c - if .... -T ;- -- ~ .1.~ 111 -s- - . til II' _1 ~ "U ..; + 111 . -c::: '-I -e:: ...- ru < <:: ---- »> -- --- ~ , 01 -c::: . .. ...
r-·- -rr- ~t; .... .. ., ~~-- .. .. . .... . ~___ -m _ -l ···· -·~lr~ T !I --+ - - ~-i--tl~ - , I ' ..~ t- 1 to: li In i!l f~ a I~ iii l I l r . J I H !I Ll I r I~ I rt~ I -J- II'] L.. . II _....J ~~~·"· ·~F · ·J~J~ ~~ ~l ~. ~ . F <, ./ , In 11 r I ( ~ l r-- ~ 3 I \ I'..... I :D r , 1 I 1"\ U1 I '" ~ L-- Pn< p u / r ,i V I{' ( /' Fig.
3-3. Co nnec tions Connect X-Y plotter with the connec tor o n th e rea r side usin g RS-232C interface cable. F ig 3.2 sho ws tbe wiring of RS-232C int erface cab le used to co nnec t the gra ph ic plotter HP7475A with the instrumen t. FG to 0 I FG TXD 20 0 2 TXD RXD 3 0 0 3 RXD RTS 4 0 0 4 RTS CTS 5 0 f- O 5 crs DSR 60 0 6 DSR 0 20 DTR -- 20 0 DTR SG 7 0 0 SG 7 Fig.
g 8 7 6 5 Pin name S2 SI Y US A3 4 B4 3 B3 2 B2 1 B1 0 0 0 0 1 0 I 0 NO. Sla te 0 ( P lo ner side> Ex 2) HITACHI 681-XA PLOTTER (9600 BAUD RAT E) NO. I 2 3 4 5 6 7 B Slale 0 0 I 1 I I I) 0 ( Oscilloscope side> NO. I 2 3 4 5 6 7 B 9 9 Sta te 0 I I 0 I I 0 I 0 0 ( plotter side ) (I) PLOT Mod c (a) Screen mod e setting Screen size can be set using DIP SfW No. 7 and 8. One mode is selected out of the modes in tab le 3-1. Table 3-1 .
(b) Pen replacement setting It is possible to set the pen replacement listed DIP S/W 6. In tab le 3-2 using Table 3 -2 Pen replacement settinq DIP S/ W NO.6 Pen feplacement OFF ON NO YES When DIP S/W 6 is set to OFF. six colors arc used for plotting. Ta ble shows the details of plot and corresponding pen number. Table 3-3 . Pen number corresponding to th e details of plot.
( ~.) Com m u n ica u o n mod e Se t baud rat e a nd data fo rma t depe nding o n the plotter speci fica tion a nd use. S ~Hn (' baud rate a nd data forma t s ho uld be set in the in strume nt and plott er . ( a) Baud rat e se tting It is possible to set RS-232C baud rate as shown in tab le 3-4 using DIP SiW 3,4 and 5. Table 3-4 Baud rate se ni ng DI P siw BAUD RATE NO. 3 NO. 4 NO.
(0) Co mm unicatio n mod e setting DIP S/W 1 sets RS-232C co mmun ica tion type ( unilateral o r bilateral ) Unilateral co mmunicatio n means the plott er output and bil ateral co mmunica tion mea ns the co mm unica tio n with person al com puter. Tab le 3-6 Comm unica tion type selli ng DIP S/W No.1 OFF ON Co mm unica tion type Un ilateral ( plotter o utput) Bilateral (c omm unicatiof with pe rso na l co mputer Note : Before turnmg on th e instrumen t, check DIP S/W setung.
3-5. Ope ration \\'111:11 th e in strument is in HOLD mode. pressing [ PLOT] SAV s tarts plotting. Red lamp lights lip while plotting is carried out. When plotting is oye r. lamp go es o ut and pen is relea sed . 3-6. RS -232C int erfa ce Th e instrument is equipped with RS-232C as a standard func tio n. This fun ction enables person al computer to control the plottin g ope ratio n as well as data input/ou tput to/from co mputer.
4. RS-232C 4-1. Int rodu ction RS-232C is the serial communication interface standardized by U.S. Electronic Industry Association , and transmits and receives digital data through RS-232C interface. 4-2.
Table 4 ·1 . RS· 2 3 2C Conne cto r term inal Pill No . Signal Function I FG (.
( 2) RS-232C inte rface sig na ls a rc as follo ws:
4-5. Operating function and function command If the instrument is connec ted with personal com purer through RS-232C interface. it is possible 10 use personal computer with appropria te programs. Function command designate the program operation to be carried out by instrument, It is possible to prepa re a set of programs using personal co mputer to configure the automatic meas urement system having a variety of function s.
The number of data to be transmitted eac h time is selected within thc memory capacity. Decimal ASC II system or binary system is selected as data transmission type. Waveform data of each memory is S bits. That is to say, it is between a and 255 for decimal number a nd bet ween (00) 16 and ( FF) 16 for hexadecimal number. The scope of these data corresponds to ten vertical div, on the C RT. The dat a correspo nding to central crosshair is 12S. «SO) 16 in haxadecimal nu mb er) .
4-6. T ransmi ssion data format Th e transmi ssion data format is as follows: ( j) Waveform data transmi ssion format After receiving Ri com ma n d (i = 1-4) the instrument transmi ts the wave form data in the following format. Refer to tab le 4-4 for eac h item. • ASC II System • Bin a ry System ( 2) Waveform da ta recepti on format • ASCII System • ASCII System Co m ma ( , J is th e sepa ri ng character code. DEL type is C/ R. In binary system, D I th ru DN a re binary da ta.
Table 4 No. Func tion I Transmissionl reception signal check Command SI command J. Function command Transmissio n fonnat Description • Check the transmission/ reception signal to enable communication with ~ personal computer. 2 Waveform data transmission Ri command • The transmission o f • waveform data stored in IR i(mmmm.nn nn. X) DELI memory i is designa ted by the data number ( nnnn) denotes the memorynumber. I Whose head has address data (mmmm) .
No. J Fun ction Measurement con Ro d ition data command tra nsmission Chareter ransmission) Transmission format Description C ommand • designates the transmission measurement comdition data ~ stored in the memory "i"(- 1- 4) denotes the or waveform I • memory number. • After trans mittion this command.
No. 5 Function Com mand Mcsurcmcnt co - Wo nd ition data command Descript io n T ran smi ssion forma t • Personal comp uter transm its the measurement condit ion reception (Character to the instrument. and designates memory to save reception) the waveform measurement condition data stored in the SAVE memory A and B. • After transmitting this ~ "i" denotes the memory number. be 3 or 4 "j" should i Memory command. personal computer transmits measurement 3 Save memory A condition data.
Table 4 -4. W aveform dat a transmissi on format No. Item 1 i@ 2 Name Memory number "i"is ! thru 4 (Not, 2) mmmm Fron r address 3 nnnn 4 Di ASCII System Data code Byte ASCII 3 Type Data number Data Decimal number. Four digits 0001- 1000 Decimal number.
Tab le 4 - 5 . Mes ure ment cond ition da ta tra nsmiss ion/ recept ion format No. Item Name Type I @j Memory number "i" is 3 or 4 2 V.M vertical mode CIII. CH2, CHOP ([)ual trace mode i.') contained) Ooc of ADDs Al including ALT mode) or B J II.M Hori zontal mode: 4 A.T A TIMElDlV 5 B. T B TIME/ DlV A TIME range value: Alignment at (note I) the left end Unit : S. MS. MICS (Alignment at the left end) B TIM E range value : Alignment at (note I) the left end Unit: S.
4-7. Separating cha rac ter Co ntrolle r transmits the separating character to info rm the instrument of the end of da ta in order to tra nsmit waveform data or func tion command message. The separating character is C/ R. 4-8. Abnormal operatio n handling Instrument sends the return code to response to the mess age command, or inform perso nal co m puter of the state. The following shows the type of these state bytes. No. State byte Description I 41 Command is normally treated.
4-11. Majo r reason s of abno rma l data transmi ssion In case data are not tran smitted satisfactorily, chec k the followin gs (J) Cable is not wired in acco rdance with fig. 4-2. (2) "51" comman d is not executed in the first plac e. 0) Th ere may occur erro r in da ta receptio n function at 9600 baud. (4) The re ma y occur error in EQUIVALE NT o r MA G mo de at the rate higher than 4800 ba ud. (5) Th e instrument mode doe s not concide with perso na l computer commun ication mode.
Following communication mode is used as an example of program. ( a) Baud rate : 4800 BAUD ( b) Data form : START BIT + 8 BIT + 1 STOP BIT ( c) Separa ting cha racter : CIR ( DIP S/W o n oscilloscope side ) I NO' 1 state 0= 1 2 ~ ( Com puter program side ) OPEN "COMl (or COM2) : 4800.
( l) P rogram example I "Sl" co mma nd "S I" co mma nd is alway executed in the first place. This is a progra m to check that co mmunication func tion is ena bled. Pro gram example Th e following program is the program for IBM compatible person al compu ter. 10 • • •• 51 COMMAND • •• •• 20 30 40 50 60 70 80 90 H10 110 120 • • •• EXECUTE THIS PROGRAM UNTIL RTNS IS A(HEX41 ) OPEN "COM2: 4800. N. 8.1. CS. OS. CO" FOR RANDOM AS #1 PRINT #1. "SI " LINE INPlIT #1.
( 2) P rogra m exam ple 2 " Ri " co m m an d T hi s program recei ves 50 wo rds o f CHI wa veform from ze ro add ress using " Ri" co m m a nd . P rog ra m exam ple 2-1 : A SC II code conversion; IBM co mpatib le personal co m puter 10 20 30 40 50 60 70 80 90 100 11 0 120 130 140 ** •• Ri (mmmm, nnnn.X) COMMAND ••••• i --- - > 1 : d ls p lay .me mory c hi 2: di sp l a y memo ry c h2 3: SAVE memo r y A 4 : SAVE me mo r y B mmmm -> sta rt a ddress nnnn - > data numbe r OPEN "COM2: 48 00, N,8, I , CS, DS.
(3) P rogram example 3 "Ro· comma nd This program receive s and displays the sweep trace mem ory A measu rement co nd ition data using "Ro" co mma nd. P rogram example 3 : IBM co mpatible personal co mputer 10 20 30 40 50 60 70 • ••• Ro(i) COMMAND ••••• OPEN "COM1: 4800. N. 8. 1. CS, OS, CD" FOR RANDOMAS #1 PRINT #1.
(4) Program example 4 "W i" comma nd Thi s program writes data in sweep trace memory A using "wi" command. Th e 0 thru 999 add ress waveform da ta a re written in sweep trace me mory as sho wn in fig. 4-3. Program ex ample 4-1 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360 370 380 ASC II code conversion ••• WI (mmmm.nnnn.
Program exa mple 4-2 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 ASCII code conversion •• • WI (mmmm,nnnn, x) COMMAND (GW-BASIC) •••• binary data t rans DI MAS (1000) CNT - 0 FOR I - 1 TO 2 FORB -1T0250 BS - CHRS (B) AS(B + CNT • 250) - BS NEXT B CNT - CNT + 1 FOR B -1 TO 250 C - 251 - B BS - CHRS (C) AS (B + CNT • 250) - BS NEXT B CNT - CNT + 1 NEXT 1 OPEN "COM2 : 4800, N, 8, 1, CS, DS, CD" FOR Ro\NDOMAS #1 PRINT #1,
(5) Program example 5 ·Wo" command This program registers the measurement condition data stored trace memory A using "Wo" command. 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 ••• Wo (i ) COMMAND (GW-BASIC) ••• .
5. USE R M AI NTE NAN C E GUIDE In order for you to usebetterthis instrument, OS
h. OS-31NNIDSRS DIAl ;IL\i\IS 6-1. External Views OS- 30200 / 0 S- 30400 / 0 S- 30600 :~ f I ILJ • " "• < • .
6-2. Block Di agra m ,, , ,, , , , ,, ,, ,' ,, - -., -, , ~ , , , , , , ,, , ,, s :: I. ,' ,, i I __ _ _ _ _ .J I I , , ,, , , , , , ,, , , ,, , ,, ,, - - -- . ,. , , ~ ,,, ,, , ,, , ,,, , ,,, ,, ,, ,, ,, ,, ,, , , II :, ~. ·: :~:r· .- - - -- -' , " ' ~ a: :: :--:: :;: _ -- - , ~ __ _ , U::' I i 113 ; ~ ,"" I i~ I 3 I -- I -- ' II _ _ : I I ~·w: :'TIJ. ',' ,--- -- ' _.....
The specifications are subjected to change without notice.
