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Iwatsu DS-8814, Руководство по эксплуатации

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background image

xvi

Auto

Normal

Single

Edge

Event

TV

CH1

CH2

CH3

CH4

Line

AC

DC

HF-R

LF-R

Pos

Neg

Off

200ns to 2s

Sweep

Trig Type

Source

Coupling

Slope

Hold off*

TRIGGER

(In any mode

other than

roll mode) 

Count

Burst

Extra

Missing

Both

Odd

Even

TV-H

Endless

Trigger’d

CH1

CH2

CH3

CH4

Line

AC

DC

HF-R

LF-R

Pos

Neg

Off

200ns to 2s

Sweep

Source

Coupling

Slope

TRIGGER

(In roll mode)

* "Hold off" exclusively for when Edge of Trig Type is selected

Hold off*

* "Hold off" exclusively for when Edge of Trig Type is selected

(19,20,46)

(53,54)

(20,21)

(20)

Содержание DS-8814

Страница 1: ...o be used please refer to the Commands Manual in the later part of this operation manual Note Parts of the contents of this manual may be modified without notice for improvements in performance and fu...

Страница 2: ...supply of this instrument is turned OFF Explanation of the symbols on the panel Symbol Description Symbols used throughout the manual together with descriptions to protect the operator from injury an...

Страница 3: ...panel This instrument runs on single phase 115 V 90 to 132 V or 220 V 180 to 250 V AC power source at 45 to 66 Hz No voltage selection is required as the instrument automatically adapts to the line vo...

Страница 4: ...ctions When measuring a floating potential measurement by the differential method CH1 CH2 input is recommended as shown in the example below Example of recommended measurement Read the following safet...

Страница 5: ...he manual or our sales distributor Do not remove the chassis covers or rear panel Removing covers exposes lethal high voltage circuits within and could result in electric shock Please contact our Home...

Страница 6: ...ise fire or electric shock could result Power Supply Use only the specified fuse 5 20 mm 250 V T3 15 A when replacing the fuse Failure to replace the fuse with the correct rating could result in fire...

Страница 7: ...n electrical shock fire or damage to the instrument Be careful not to let the container fall over during set up and use otherwise electric shock injury or fire could result Do not use the instrument i...

Страница 8: ...tions before using the floppy disk drive Before using the floppy disk drive make the front panel of the instrument faced forward If the instrument is operated with its front panel made faced upward wr...

Страница 9: ...r Components Main unit 1 Accessories 10 1 10M SS 0130R Passive Probe 4 Accessories Includecl Fuse 250 V T3 15 A 2 Operation Commands Manual 1 Thermal printer paper 1 pcs Power cord 3 prong type 1 Opti...

Страница 10: ...x Packing Diagram Polyethylene bag Bottom pad Corner pats Bottom packing Figure 1 Main Unit Packing Diagram Accessory box Figure 2 Packing Main unit Top packing...

Страница 11: ...ement 10 11 Contrast setting Selection of language HELP function Setting of date 10 Display date on the screen Reverse display function LCD How to restore the setting at time of purchase 11 Displaying...

Страница 12: ...ontrast Join Display TYPE setting 30 Scale Math M Source Status setting 31 MEASURE auto measurement menu 32 33 MEASURE Setting measurement items 32 Measurement item Auto measurement parameter 33 SAVE...

Страница 13: ...lculated waveform 58 Automatic measurement MEASURE 60 Save recall delete 70 UTILITIES Copy 73 Appendices Appendix 1 Sampling Period and On Screen Data Count for Short Memory 75 Appendix 2 Sampling Rat...

Страница 14: ...Axis Frame Off Add Sub Mult FFT CH1 CH2 CH3 CH4 CH1 2 CH3 4 CH1 CH2 CH3 CH4 1024 4096 Hanning Flat Top Rect Off Counter Date Measure Comment Contrast Join Type Scale Math M Source F Source F Points F...

Страница 15: ...Date Config UTILITIES Device Type Function Floppy ATA Card only File No Auto Copy Source Interface Delimiter Baud Rate Data Address End Cancel Date Month Year Hour Minutes Language 10 LCD 11 Self Cal...

Страница 16: ...any mode other than roll mode Count Burst Extra Missing Both Odd Even TV H Endless Trigger d CH1 CH2 CH3 CH4 Line AC DC HF R LF R Pos Neg Off 200ns to 2s Sweep Source Coupling Slope TRIGGER In roll mo...

Страница 17: ...I H C2 H TRACK V CI V C2 V TRACK H CI H C2 H TRACK t 1 t CH1 CH2 t 1 t CH3 CH4 t 1 t t CH1 CH2 CH3 CH4 H C1 FUNCTION V CI V C2 V TRACK H CI H C2 H TRACK CURSORS Tr Tf Vrms Vmean freq Period PW PW Duty...

Страница 18: ...xviii Memo...

Страница 19: ...Operation Manual...

Страница 20: ...1 Section 1 Basic Operation This section describes the basic operation including start up See Section 2 Explanation of Functions for details...

Страница 21: ...2 Appearance Front View Power switch Input terminal CAL terminal calibration signal output terminal Ground terminal Floppy disk drive...

Страница 22: ...3 Rear View GP IB port RS 232C port AC power inlet Fuse holder PCMCIA Type II slot Upper View Built in printer...

Страница 23: ...H1 CH2 CH3 CH4 MENU Knobs Single function knob Turning or pressing the knob sets a range or level CH1 CH2 VOLTS DIV CH1 CH2 OFFSET CH3 CH4 VOLTS DIV CH3 CH4 OFFSET TIME DIV DELAY TRIG LEVEL FUNCTION k...

Страница 24: ...Axes Setting a numerical value There are two ways of selecting a setting item in the menu one is to turn the FUNCTION knob to select an item and then press the knob to fix it and the other is to fix...

Страница 25: ...l P18 AUTO NORM SGL button Selects the sweep mode from Auto Normal Single P20 Description of operation section Shown in is the reference page MENU button Displays the CH1 CH2 CH3 and CH4 menus P14 P15...

Страница 26: ...le FFT is being selected in the Display Math menu the screen is changed to the FFT screen or YT XY screen SAVE LOCAL FEED UNDO SAVE CLEAR RUN STOP button Sets capturing a new signal or stops capturing...

Страница 27: ...ly Additionally the trigger level is displayed as marker T Horizontal axis and acquisition display area a Timebase Time div b Sampling rate c Run Stop state d Delay time e Acquisition mode f Roll equa...

Страница 28: ...ht or left arrows are displayed when the trigger position is outside the display area Menu item Displays the selection status in reverse video Menu setting Displays the current setting If the setting...

Страница 29: ...contrast is automatically set initially when the power is turned on You may adjust the contrast manually if necessary This manually adjusted condition is maintained until the power is turned off 1 Pr...

Страница 30: ...function LCD Toggles the screen between Normal white background and Reverse blue background This function affects only the LCD display and does not affect the copy output 1 Select Config in the UTILIT...

Страница 31: ...CH1 gain sensitivity automatically depending on the probe attenuation ratio 10 1 100 1 7 Press the AUTOSET button The waveform as shown on page 13 appears when CH2 CH3 and CH4 TRACE are OFF Displayin...

Страница 32: ...ty of 100 pF m is 1 5 m long the capacity becomes 150 pF Cautions for use of shielded cable Correctly compensated waveform Excessive compensation Adjust it so that this part may be flat Insufficient c...

Страница 33: ...the CH menu If Zoom is selected the setting varies continuously from 1 00 to 2 50 maximum 0 8 mV div Expansion by software The waveform is enlarged based on the screen center regardless of the offset...

Страница 34: ...noise of 10 MHz or higher in the signal Square wave when AC is selected Square wave when DC is selected When you observe the signals that ripple or noise occurs like in the power output it is better...

Страница 35: ...to 50 s div in 1 2 5 sequence When pressing the TIME DIV knob if FFT is not selected in Math either 1 2 5 sequence or 1 10 100 sequence are set The waveform is expanded or reduced based on the screen...

Страница 36: ...ry length Long is selected See page 55 PERSISTENCE The newly acquired waveform is overwritten on the screen Pressing this button toggles between ON and OFF This function can also be set in the ACQUISI...

Страница 37: ...t trigger delay operation see page 16 Press the trigger level knob to set the trigger level in rough steps A trigger signal is generated at the cross point of the input signal and the trigger level Th...

Страница 38: ...Selects coupling of a trigger signal AC coupling is useful for observing a signal on a DC voltage HF R rejects high frequency signal components such as noise to ensure stable triggering AC Blocks the...

Страница 39: ...l is available When the trigger signal frequency is low triggering may be unstable In this case change to NORM Captures a waveform every time a trigger signal is generated Sweep stops when no trigger...

Страница 40: ...r reduced or its position can be varied for both the vertical and horizontal axes The following describes the operations when performing various functions Can be set to any range Can be set to any ran...

Страница 41: ...in the direction the knob was last turned Selects the active cursor either cursor 1 C1 or cursor 2 C2 When TCK Tracking is selected C1 and C2 can move simultaneously The cursor selected and displayed...

Страница 42: ...oltage sensitivity Period t measurement 1 t measurement Type of cursor measurement Measurement type Description Usable cursor V Voltage difference between V cursors V C1 V C2 t 1 t Time difference bet...

Страница 43: ...FUNCTION operation set the Device menu to Printer 3 Through FUNCTION operation set the Autocopy menu to OFF 4 Through FUNCTION operation set the Source menu to Screen 5 Every depressing of the Copy b...

Страница 44: ...ear side position lock Insert the paper end beneath the roller until the paper is fed about 15 seconds automatically Loading printer roll paper Turn on the power of the scope Pull up the handle Unlock...

Страница 45: ...press the SAVE button 2 Set a sweep rate of 200 s div and carry out measurement 3 Pressing the UNDO button recalls the panel setting at a sweep rate of 2 ms div 4 Pressing the UNDO button again recall...

Страница 46: ...eform on the screen 2 Press the REF CLEAR button to display the REF menu 3 Press the REF CLEAR button to erase all the displayed REF waveforms 4 Select REF 1 to 2 in the Display menu with FUNCTION ope...

Страница 47: ...etect can capture glitches without missing events that cannot be captured by normal sampling Sets the equivalent sampling ON or OFF When ON detects the trigger position of the captured waveform with a...

Страница 48: ...In persistence mode the overwritten waveform display is erased when you change the V H axis setting and the scope restarts overwriting under the new setting Operation in persistence mode 5ns 10GS s Ru...

Страница 49: ...waveform Peak compression is automatically performed according to the display data count Display TYPE setting Allows selection of waveform display format YT XY1 2 XY3 4 or XY1 2 XY3 4 Displays wavefo...

Страница 50: ...y area Counter Displays the frequency of a trigger signal Date Displays the time and date Measure Displays the auto measurement result Comment Displays the edited comment Comments can be edited by set...

Страница 51: ...easurement interval corresponds to the entire screen MEASURE auto measurement menu MEASURE Selects any of the 4 items A B C and D from auto measurement items such as Tr rise time and freq frequency of...

Страница 52: ...s CH3 CH4 skew Skew34 Yes CH1 CH3 skew Skew13 Yes Measurement item For the types of auto measurement and details of the measurements see Section 2 Channel symbol 1 2 3 or 4 is put at the top of each p...

Страница 53: ...displayed at the bottom of the screen all the time Auto measurement parameter Menu Setting item Set value 100 value Top Base P P Upper 10 to 90 Lower 10 to 90 Level 10 to 90 From Edge 1 Rise 1 Fall 2...

Страница 54: ...t is performed for desired 4 items A B C and D of full auto measurement items The following shows the auto measurement sequence and channels to be measured The auto measurement is performed for desire...

Страница 55: ...calls or deletes panel settings in Binary format The file extension is set WAVE Saves recalls or deletes waveform data in Binary format The file extension is wfm ASCII Saves or deletes waveform data i...

Страница 56: ...Step is set to 4 or more for long memory the waveform data ASCII can be saved into a floppy disk Number and capacity of files that can be saved 1 Press the SAVE RECALL button to display the SAVE RECA...

Страница 57: ...SAVE RECALL menu 2 Set Device to Floppy with Function operation 3 Set Type to Waveform with Function operation 4 Set Style to Binary with Function operation 5 Set Function to Save with Function operat...

Страница 58: ...ll erase all data saved in the medium Using a medium such as floppy disk or ATA card requires formatting Formatting the floppy disk The format operation erases all stored data 1 Set Format to Floppy w...

Страница 59: ...d the setup settings can be output when the output destination is set to the panel The File No can be specified when the output destination is set to floppy disk or ATA card The file No is incremented...

Страница 60: ...comment characters 4 Select END in the Utilities menu above and press the FUNCTION button The comment is saved Press Cancel to cancel the saving Performs the selection of the language Language for the...

Страница 61: ...42 Memo...

Страница 62: ...ring 46 TV trigger 48 ACQUISITION 50 Peak detection Peak Det 50 Average Average 51 Equivalent sampling EQU SMPL 52 Roll ROLL 53 Sweep mode in Roll operation 54 Persistence PERSISTENCE 55 Memory length...

Страница 63: ...splay of CH1 to CH4 waveforms Performs the FFT calculation of CH1 to CH4 waveforms and displays the calculation results For details see the FFT calculation page F 1 CH1 CH2 CH3 CH4 waveforms REF1 REF2...

Страница 64: ...range for a trigger delay in a waveform acquisition RUN state varies depending on the sweep time and memory length The waveform acquisition stop STOP state is 500 s to 750 s regardless of sweep time...

Страница 65: ...suitable for observation of burst waveforms etc Interval time 0 15 s to 1 s can also be set roughly by Coarse Generates valid trigger signal when trigger signal period is smaller than the interval tim...

Страница 66: ...is no trigger signal within specified time The valid trigger is generated within 50ns after the interval time has passed from the last trigger It allows waveform to be acquired when part of repetitio...

Страница 67: ...TV H Triggers by a horizontal sync signal Specifies a line number in the field selected by Type While NTSC is selected 1 to 525 can be set While PAL SECAM is selected 1 to 625 can be set Lines can al...

Страница 68: ...eld frequency Approx 60 Hz Approx 50 Hz Approx 50 Hz Approx 60 Hz Video signal bandwidth 4 2 MHz 5 MHz 6 MHz 20 MHz Country USA Canada Japan Korea Taiwan Philippine M S America W Europe Asia India Oce...

Страница 69: ...ble to capture phenomena that occur in the sampling period correctly Pulse signal Example of measurement of 10 ns pulse signal with repetition frequency of approx 11 kHz Peak detection mode is OFF In...

Страница 70: ...memory Norm smpl normal sampling is set automatically even if Average is selected Average Average A verage count Count Sets average count to 64 L is effective Sets acquisition mode to Average Indicat...

Страница 71: ...pling and Equ sampling for approx 100 MHz sine wave Equivalent sampling EQU SMPL Principle This Norm sampling example is shown by Join ON Data pieces captured in 5ns period are linked with a line With...

Страница 72: ...div in the roll mode Set Device to Printer and set Source to Screen in the Copy menu of UTILITIES beforehand While roll print is in progress no operation is possible other than RUN STOP button operati...

Страница 73: ...is set to 5 Sweep mode in Roll operation The setting of the sweep mode is performed by Sweep in the TRIGGER menu or with the AUTO NORMAL SGL button The sweep mode setting is changed depending on whet...

Страница 74: ...nding on the memory length 1 k 1024 words channel Waveforms are displayed depending on the Join setting in display menu 100 k 102400 words channel In RUN state waveform is always displayed in join irr...

Страница 75: ...with the clock shifted by half period phase to double the sampling speed Sine waveform with a period of approximately 40 MHz Interleave Interleave Principle Measurement example Limitation on interlea...

Страница 76: ...irection X on the CH1 voltage axis and the vertical direction Y on the CH2 voltage axis XY3 4 Displays a waveform by expressing the horizontal direction X on the CH3 voltage axis and the vertical dire...

Страница 77: ...4 is selected Add Waveform that the CH3 waveform is added to the CH4 waveform Sub Waveform that the CH4 waveform is subtracted from the CH3 waveform Multi Waveform that the CH3 waveform is multiplied...

Страница 78: ...Mult CH1 waveform data CH1 GND position CH2 waveform data CH2 GND position 128 CH1 CH2 Mult Outside screen Center Outside screen Waveform display screen This instrument converts the voltage of an inpu...

Страница 79: ...the screen For automatic measurement items allowing measurement point display page 33 the measurement point position is indicated with a mark while the automatic measurement value is being displayed...

Страница 80: ...the measurement end level is set at the Tf The setting range is 10 to 89 Rise time Tr Fall time Tf Tr Tf 100 Upper Level e g 90 0 Base Lower Level e g 10 Top This span is regarded as 100 The point at...

Страница 81: ...Max and Min of waveform data in the measurement area is set as 100 and the period is obtained from the point at which the waveform crosses the level Frequency is calculated from the period The settin...

Страница 82: ...fied area are determined and it is set as 100 and pulse width and period are calculated from the point at which the waveform data crosses the value specified by Level Measures maximum value of wavefor...

Страница 83: ...voltage and following parameters can be selected Sets a channel CH1 to CH4 and an edge Rise Fall starting measurement Sets a voltage starting measurement f mark displayed at the right end of the scre...

Страница 84: ...ll Uses falling edge The first specified edge in the specified area becomes the skew measurement start or end point Sets the level of CH2 CH4 CH3 waveform in the same way as for the CH1 CH3 level Sele...

Страница 85: ...e channel to be measured The integration measurement is performed for the actually taken data and is not performed for the interpolation data Example of measurement In this example the integration val...

Страница 86: ...alue of these integer cycles is measured The following parameter can be selected Level A cycle between the maximum value Peak and minimum value Peak of the waveform data in the measurement interval is...

Страница 87: ...ed The following parameter can be selected Level In the measurement interval TOP and BASE of the waveform data are found The period between TOP and BASE is determined to 100 A waveform rise and fall w...

Страница 88: ...umber of pulses Pulse The number of pulses of the waveform in the measurement interval is measured When the waveform level is passed from the lower portion to the upper portion after it has been passe...

Страница 89: ...file No in steps of 20 when Course is set 6 After specifying the File No press the FUNCTION knob The message Press FUNCTION to save appears Press the knob again to execute SAVE If the specified file...

Страница 90: ...g Waveform data saved in ASCII format cannot be recalled by this instrument In a file saved in ASCII format CH1 to CH4 waveform data voltage values in unit of volts and other auxiliary information are...

Страница 91: ...o save ASCII data to a floppy disk Memory length Trace On Step Data length File Size Short CH1 to CH4 1 1024 bytes 54KB Short CH1 to CH4 2 512 bytes 28KB Short CH1 to CH4 4 256 bytes 14KB Short CH1 to...

Страница 92: ...g If the device is Floppy or ATA Card select the function Copy Delete To execute the function specify File No TIFF Saves deletes TIFF format screen or panel setting The file extension is TIF BMP Saves...

Страница 93: ...rm the same operation steps 3 to 6 as described for copying to floppy disk If Coarse is selected for ATA card File No can be set at every 20 steps Selecting Delete in the Function menu allows a specif...

Страница 94: ...2 s 1 000 words 100 s div 1 MS s 1 s 1 000 words 50 s div 2 MS s 500 ns 1 000 words 20 s div 5 MS s 200 ns 1 000 words 10 s div 10 MS s 100 ns 1 000 words 5 s div 20 MS s 50 ns 1 000 words 2 s div 50...

Страница 95: ...words 200 s div 500 kS s 2 s 1 000 words 100 s div 1 MS s 1 s 1 000 words 50 s div 2 MS s 500 ns 1 000 words 20 s div 5 MS s 200 ns 1 000 words 10 s div 10 MS s 100 ns 1 000 words 5 s div 20 MS s 50 n...

Страница 96: ...iv 5 MS s 200 ns 100 000 words 1 ms div 10 MS s 100 ns 100 000 words 500 s div 20 MS s 50 ns 100 000 words 200 s div 50 MS s 20 ns 100 000 words 100 s div 100 MS s 10 ns 100 000 words 50 s div 200 MS...

Страница 97: ...2 ms div 5 MS s 200 ns 100 000 words 1 ms div 10 MS s 100 ns 100 000 words 500 s div 20 MS s 50 ns 100 000 words 200 s div 50 MS s 20 ns 100 000 words 100 s div 100 MS s 10 ns 100 000 words 50 s div 1...

Страница 98: ...v and 3 div from center of screen 4 CHs are displayed Near 3 div 1 div 1 div and 3 div from center of screen Division Auto Off Auto Edge Keeps the settings before execution However when the channel of...

Страница 99: ...l DISPLAY menu items except Display and Status All MEASURE menu items All CH menu items All TRIG menu items Detailed menu trees CH1 CH2 CH3 CH4 DISPLAY ACQUISITION 12 14 15 30 31 44 28 29 MEASURE 32 3...

Страница 100: ...81 Section 3 Daily Care...

Страница 101: ...ILITIES menu to Config 2 Pressing FUNCTION knob shows the Config menu 3 Through FUNCTION control set the Config menu to Self Cal 4 Pressing FUNCTION knob twice shows Pressing FUNCTION again starts cal...

Страница 102: ...umidity 80 RH 40 C or below f Repair and return of repaired product In the event of malfunction contact our sales distributors The product under warranty will be repaired free of charge When returning...

Страница 103: ...sed at too a high or low temperature Is a wrong channel selected Is the probe wire disconnected Action Connect the power cord to the AC receptacle Turn OFF the power switch and then turn it ON again I...

Страница 104: ...probe provided with a probe sense function Did the AC power supply voltage drop too much Did you set the time Action Set the trig signal input channel as the trig signal source Format the medium usin...

Страница 105: ...turn ON the power 3 SHUT DOWN is displayed and the power is automatically turned OFF 4 Turn OFF the power switch and then turn it ON again All panel setting and internal memories are cleared and the f...

Страница 106: ...87 Section 4 Specifications...

Страница 107: ...10 MHz 3 dB can be selected for CH1 CH2 CH3 or CH4 separately Offset 2 mV div to 50 mV div 1 V 100 mV div to 500 mV div 10 V 1 V div to 10 V div 100 V Division and volts can be set for CH1 CH2 CH3 or...

Страница 108: ...005 Acquisition function A D conversion Resolution 8 bits Maximum sampling rate 400 MS s when CH1 or CH3 is used 200 MS s when all channels are used Acquisition memory Short 1 k words CH Long 100 k wo...

Страница 109: ...3 CH4 FFT Scale display Grid Axis Frame Help function Japanese English Simplified Chinese Traditional Chinese Comment Display using alphanumerics symbols is possible Maximum number of characters 30 ch...

Страница 110: ...simultaneously Record format Waveform data selectable from binary or ASCII Only binary for panel setting Record count Per data type and record format ATA card Max 9999 Floppy disk Max 200 Time stamp S...

Страница 111: ...ption When printer is operating 110 VA Max 100 W Max When printer is not operating 95 VA Max 80 W Max During standby 1 VA or less Weight dimensions Weight Approx 3 kg Dimensions 215 W 170 H 166 L mm e...

Страница 112: ...EEC for Prod uct Safety Low Voltage Directive EN61010 1 93 A2 95 Safety Requirements for electrical equipment for measure ment control and laboratory use Do not operate in environments where conducti...

Страница 113: ...94 Memo...

Страница 114: ...F 1 Section 5 FFT Computation...

Страница 115: ...requency axis FFT waveform The display is switched to either the time axis YT XY waveform or frequency axis FFT waveform of the selected trace CH1 through CH4 Window 3 types of windows Rectangular Han...

Страница 116: ...alysis High harmonic analysis noise analysis vibration analysis characteristic evaluations such as for a filter Restrictions when selecting FFT When long memory is set at waveform acquisition halt Sto...

Страница 117: ...the FUNCTION knob and select FFT 5 Press the FUNCTION knob to verify the setting Menu items are displayed as highlighted text 6 Turn the FUNCTION knob counterclockwise to display the various FFT menus...

Страница 118: ...p state d Position along horizontal axis screen center e Acquisition mode f Equal sampling g Memory length Short Long 3 Menu display area Displays the selected menu Displays cursor measurement items d...

Страница 119: ...ht edge 6 Displays the 0dBm position of the FFT waveform as _ If the display position is outside the area up down arrows are displayed according to the direction Through FUNCTION operation when the Ma...

Страница 120: ...nd is displayed based on the center of the screen Pressing the knob will alternately switch the FFT and YT XY screens ZERO DELAY Initializes the position along the waveform s horizontal axis F Source...

Страница 121: ...n halt STOP the FFT range can be verified in the same manner by performing the following operations When equal sampling is Off change TI ME DIV and set to 500ns div When equal sampling is On change TI...

Страница 122: ...xample since an appropriate state has been set by AUTOSET there is no special adjustment Similarly adjust the TIME DIV and DELAY knobs so that the portion of the waveform to be measured fits within th...

Страница 123: ...analysis is selected Refer to the previous page and page F 18 To verify frequency and or dBm values use cursor measurement 5 Press the V t V t V at t OFF button and select dBm at f Turn the FUNCTION...

Страница 124: ...dBm between dBm of V C1 and V cursor V C1 V C2 f f between frequency of H C1 and H cursor H C1 H C2 dBm f dBm between dBm of V C1 and V cursor f between frequency of H C1 and H cursor V C1 V C2 H C1...

Страница 125: ...and dBm value 4 The frequency and dBm value of the specified portion are displayed in the menu Refer to page 23 The below diagram is an example in which the value of the secondary harmonic component C...

Страница 126: ...function refer to page 34 7 Through FUNCTION operation set Function to Save 8 Through FUNCTION operation set File No to an arbitrary value 1 for example at each step If Coarse is selected settings ca...

Страница 127: ...graph wizard Frequencies corresponding to Data dBm are computed with the below formula Frequency corresponding to dBm value Delta Hz Address Number of Files Size FFT waveform data is saved in the spec...

Страница 128: ...ys the signal energy in dBm of each frequency component of the waveform that is targeted for computation 0dBm corresponds to 1mW and the equivalent voltage 0 316V peak at a 50 load The power spectrum...

Страница 129: ...Since this product is equipped with an independent counter function the occurrence of aliasing can also be identified from those measured results The following methods are available to prevent aliasi...

Страница 130: ...is product The frequency axis ranges from 0Hz DC to the Nyquest frequency 1 2 the FFT sampling rate Reference 1 Verify the signal band to analyze 4 Frequency Range of FFT Waveform 2 Determine the wind...

Страница 131: ...in the computation range and if points a and b are of a continuous burst signal spectral leakage will not occur However as in 2 if the front and rear points c and d of the computation range are of a d...

Страница 132: ...olution is degraded The Flat Top window is suitable for the amplitude analysis of a repeating waveform YT waveform FFT waveform FFT waveform peak is max 6 F Points Selection and Result When the memory...

Страница 133: ...splayed the number of data points displayed on the screen will differ Refer to document 2 In this case after waveform acquisition halt STOP the computation range can be verified in the same manner by...

Страница 134: ...t the z can be saved The Step value can be selected from 1 2 4 8 16 32 64 or 128 If Step is set to 1 all waveform data will be saved 6 Through FUNCTION operation set Function to Save 7 Through FUNCTIO...

Страница 135: ...mmand List section 8 3 Saving Voltage Value of ASCII Save With this product when saving the YT waveform data in CSV format on a floppy disk or ATA card it can be saved with the voltage value units Vol...

Страница 136: ...280 Bytes 35kB Approx 23s Short Ch1 Ch2 8 640 Bytes 18kB Approx 15s Short Ch1 Ch2 16 320 Bytes 9kB Approx 12s Short Ch1 Ch2 32 160 Bytes 5kB Approx 10s Short Ch1 Ch2 64 80 Bytes 3kB Approx 9s Short Ch...

Страница 137: ...Memo...

Страница 138: ...ton 7 V t V t V at t off button 6 A AC 19 AC Coupling 15 ACQUISITION 17 28 50 Acquisition Menu 28 Acquisition Mode 8 Add 31 58 Amplitude parameter 61 ASCII 39 71 ATA Card 70 71 73 Index Auto 20 45 47...

Страница 139: ...and reduction 44 Extension 73 Extra 46 F Fall time 32 61 Field frequency 48 File No 71 Floppy 74 Format 39 Frame 5 31 freq 32 33 62 FUNCTION 5 6 22 G GND 8 9 14 15 Grid 5 31 H H cursor 22 Hard copy 7...

Страница 140: ...19 Power observation 59 Probe 12 45 Pulse width 60 63 R Recall 70 REF 44 REF CLEAR 27 REF SAVE 27 Reference 44 Reference waveform 27 60 Reference waveform display 57 Resolution 59 Reverse 11 Rise tim...

Страница 141: ...igger signal 18 Trigger slope trigger coupling 8 Trigger d 54 TV 19 48 Type 46 U UNDO 12 Utilities 9 24 40 73 74 V V at t 23 55 V cursor 22 Valid trigger 46 Vertical axis 14 Vertical sync signal 48 Vi...

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