User manual EZ DIGITAL OS-3020D

[. . . ] Oscilloscope Digital Storage Oscilloscope Operation Manual 05- 30200/400/600 Digital Storage Oscilloscope Operation Manual · 0· , · ' · . ' · · , . ' · · · · , . . . . . . . :;::::. ~ =. J ~ () !Q)l @ ez Digital Co. , Ltd. DECLARATION OF CONFORMITY according to ISO/lEe Guide 22 and EN 45014 Manufacturer 's Name: E Z Digit a l Co. . Bucheon -s i, Gy ecnggi-do R. O. K , 421 -16 0 Declares that the product : Product Name : OSC ILLOSCO PE 05 -3 0200 , 05 -30400 , 05-30600 , Aug. [. . . ] CH2 or ADD, waveform is stored storage memo ry A and B in tum whenever pressing SAVE switch. Wh en vertical mode switch is set to DUAL, CH I waveform is stored in storage memory A while CH2 waveform is stored in storage mem ory B. (7) Storage memory display (RECALL) Th e detail s stored in storage mem ory in HOLD mode are displayed o n the CRT in next operation, and comparable with current waveform. (D Pressing thi s switch once, recall switch displays both the waveform stored in storage memo ry A and the set valu e (V/div. Pre ssing this switch Once more, the waveform stored in storage mem ory B is displayed. Pressing this switch one more time displays both the waveform stored in storage mem ory A and B and the set valu e. P ressing th is switch again erase s displayed waveform and set value. @ The waveform data displayed in storage mode cannot be moved vertically. 53 (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. (I) XIO MAG Displayed waveform magnified ten times from the center of origi na l waveform in the tube surface storage. sector magnifie s ten times from the center of C H I and CH2 o riginal waveform . Original state Magnified state CHI CH2 Fig. X10 MAG 5-1 (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) . [ Example of magnification operation] Gil Di splay the original waveform and set HOLD mode. (j)) Turn TIME/ DIV switch clockw ise to change TIME/DIV to rapid set value. When TIME/DIY set value is cha nged on the tube surface waveform is magnified as corres po nd ing to the set value. 55 (i) Original l ms/di v TIMEIDIV HO LD mod e CH1 CH2 fV\II. NVINIM JLWJU U U LU (ii) Rotating TIME / DIY switch. it magnifies two times with TIM E/ DlV = O . 5ms/d iv. CHI CH2 fV\NV\ . JLJLJUUL ~ (iii) Rotating TIME / DIY agam switch, it magnifies ten times with TIME/ OlV = O . 5ms/d iv. CHI CH2 -FL Fig. HOLD wav eform magn ification @ This operation performs horizont al mag nification up to ten time s. But TIME/ OIV display is not cha nged and waveform is not magn ified any more even if you turns TIME/OIV clockwise beyon d that extent @ When magnification is displayed, the magnificati on rate is grad ually redu ced a nd returned to the original waveform by selling the TIM E/OlV set switch to the slower side while turning TI ME/OIV switch cou nterclockwise. )6 ( 10) Interpo la tion As the horizontal magnification rate increa ses, sine wave loo ks stepwise and pulse wave goes ami ss. Every time yo u p ress M EN U selecto r switch, int erpolati o n selectio n function co nve rts as follows : ---> Lin ear interpolation ---> sine interpolation ---> no interpolation Th e cu rrent interpolation mode is indicated as sym bol on the sweep sweep fact or on the bottom right o f tub e surface. Selecting linear/ sine interpol ati ons makes pul se/sine wave o f input signal clearly displayed on th e tube. [. . . ] 4-3. Program ex ample 4-1 ASC II code conversion 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 ··· W (mmmm. nnnn. x) COM I MAND (GW-BASIC) ···· DI M AS( 1000) CNT ~ 0 FOR 1 = 1 TO 2 FOR B = 1 TO 250 IF B > = 100 THEN BS = MI OS ( STRS (B) . AS CB + CNT · 250 ) = B$ + " v " NEXT B CNT = CNT ' 1 fOR B = 1 TO 250 C = 251 - B IF C >= 100 'mE N BS = MI OS (STR$ (C) . AS (B + CNT · 250) = BS + '', " NEXT B CNT = CNT + 1 NEXT I OPEN "COM2 : 4800. RTN$ RTN ' ASC(RTNS) IF RTN <> &H41 THEN 360 PRINT " Wi COM MAND PASS" PRINT # 1. [. . . ]