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1)Display. (On/Off) :

CH1 or CH2 is selected and displayed

by pressing this switch, and both channels can be selected and displayed at

the same time. Whenever this switch is pressed, channel display function is

operated repeatedly.

2)Coupling. (AC/DC/Ground) :

Three input coupling modes are

available. Select the desired coupling mode by the DC/AC/GND switch. The

selected coupling mode is displayed at the bottom left of the screen. Whenever

the switch is pressed, coupling of input signal is operated in the sequence of

AC, DC and Ground.

AC :

Displayed on the screen in the form of " ". An input signal is

connected to the amplifier via a capacitor. Its DC component is cut

and only AC component is displayed.

DC :

Displayed on the screen in the form of " " . An input is directly

connected to the amplifier, and the signal including a DC component

is displayed.

Ground :

Displayed on the screen in the form of " " . An input signal is

separated and the input of the vertical amplifier is grounded.

3)Probe . (X1 / x10 / x100 / x1000) :

Set this to match your probe

attenuation factor to make the vertical scale readout correct

x1 :

when 1:1 probe is used or signal is directly connected to the coaxial

cable, x1 is selected

x10 :

when 10:1 probe is used , x10 is selected.

x100 :

when 100:1 probe is used, x100 is selected.

X1000

when 1000:1 probe is used , x1000 is selected.

4)Position Set To 0

Set the offset to 0V. Offset pertorms a function similar to the vertical position

knob.

Содержание DS-1000 Series

Страница 1: ...Digital Oscilloscope ...

Страница 2: ...Digital Oscilloscope ...

Страница 3: ...e December 01 2001 Conforms to the following product specifications Safety EN 61010 1 1993 A2 1995 IEC 10101 1990 A1 1992 A2 1995 Modified EMC EN 61326 1997 A1 1998 Supplementary information DECLARATION OF CONFORMITY Bucheon Gyeonggi Location Cheol Young Kim Quality Assurance Manager The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89...

Страница 4: ... at his or her own expense A returned product must be accompanied by a written description of the defect We return the product to the purchaser at his or her own expense In case the warranty does not cover the product on EZ Digital Co Ltd s sole judgement we repair the product after obtaining prior permission from the purchaser who received pro forma statement about repairing charges In such a cas...

Страница 5: ... x10 2EA Only DS 1100 OPTIONAL ACCESSORIES RS 232C thermal printer Printy2 with RS 232C Cable Test probes 150MHz probes x1 x10 250MHz probes x1 x10 Service manual PC Software kit RS 232C Cable USB Cable PC interface Program Interface Card Type A RS 232C Centronics USB Interface Card Type B RS 232C Centronics ...

Страница 6: ... MEASUREMENT 1 3 2 WHEN CONNECTING PERIPHERAL DEVICES 1 3 3 PROBE 1 4 INSTALLATION 1 4 1 POWER CODE 1 4 2 INTERFACE CARD 2 DESCRIPTION 2 1 KEY DISPLAY DESCRIPTION 2 1 1 DISPLAY OVERVIEW 2 1 2 VERTICAL AXIS OPERATION 2 1 3 HORIZONTAL AXIS OPERATION 2 1 4 TRIGGER 2 1 5 MENUS 2 1 6 CONNECTORS 2 1 7 THE MENU BOX BUTTON AND FUNCTION KNOB 2 2 MENUS 2 2 1 AUTOSET 2 2 2 VERTICAL 2 2 3 MATH 2 2 4 HORIZONTA...

Страница 7: ...LITY 2 2 11 DISPLAY 2 2 12 HARDCOPY 2 3 USING THE FUNCTIONS EFFECTIVELY 2 3 1 USING THE ZOOM FUNCTION 2 3 2 USING THE SINGLE FUNCTION 2 3 3 USING FFT FAST FOURIER TRANSFORMATION 3 APPENDIX 3 1 SPECIFICATIONS 3 2 FACTORY DEFAULTS 43 45 47 49 51 53 55 56 56 57 58 60 61 65 6 ...

Страница 8: ...1 INTRODUCTION 7 ...

Страница 9: ...alysis function like FFT which is available on high priced products General Features 100MHz bandwidth DS 1100 2 CH dual digitizer 150MHz bandwidth DS 1150 2 CH dual digitizer 250MHz bandwidth DS 1250 2 CH dual digitizer 100MS s simultaneous maximum sampling rate per channel 200MS s sampling rate for one channel only 25GS s equivalent sampling rate per channel 10ns peak detection for glitch capture...

Страница 10: ...ge category 2 Pollution Degree 2 1 2 2 SAFETY SYMBOLS Where these symbols or indications appear on the instrument or in this manual they have the following meanings 1 2 NOTES FOR A SAFETY OPERATION Refer to accompanying documents for Safety related information Wherever the symbol is present see NOTES FOR A SAFETY OPERATION part in this manual Risk of hazard which causes fire or serious damage to t...

Страница 11: ...sh objects of any kind into this instrument through openings as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock Never spill liquid of any kind on the instrument Do not use this instrument near water for example near a bath tub wash bowl kitchen sink or laundry tub in a wet basement or near a swimming pool and the like Keep the instrument awa...

Страница 12: ...tage In order to avoid electric shock or fire the input voltages to the probes BNC connectors are specified as follows Do not apply higher voltages Before using probe check the rated voltage with the naked eye Remove the unused probe not to contact with ambient high voltage parts If you apply a higher voltage more than 400Vpk remove the probe out of BNC terminals to ensure against accidental dange...

Страница 13: ... damaged When the LCD is damaged you must not open the cover during operation There is a risk of electric shock If liquid has been spilled or objects have fallen into the instrument If the instrument does not operate normally by following the operating instructions Adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in da...

Страница 14: ... detergent then wipe the cleaned surface with a dry cloth In case of severe stain try cleaning with a cloth moistened with alcohol Do not use powerful hydrocarbons such as benzene or paint thinner Dust and or smudges can be removed from the LCD screen First remove the front case and filter Clean the filter and the LCD face if necessary by wiping carefully with a soft cloth or commercial wiping tis...

Страница 15: ...ed If the trace is displayed excessively or when it is desired to optimize the measurement execute it referring to the automatic calibration Before calibration disconnect all inputs for accurate adjustment 2 The hardware calibration is necessary to keep the instrument to a stable operation status It is recommended to adjust the instrument every 2 000 operating hours or every year 1 3 NOTES TO USER...

Страница 16: ...ter and the personal computer refer to the operation manual for each If you operate the printer and the personal computer which are improperly set abnormal operation will occur In this case turn off the instrument the printer and the personal computer at once and set them properly again and operate them BAUD RATE 9600 bps PARITY BIT None DATA BIT 8 bit RS 232C Serial cable is 9pin male to 25pin ma...

Страница 17: ...When using printer operation Centronics settings are as follows When using PC communication operation RS 232C settings are as follows Before communicating with a PC the PC software kit option should be installed in your PC If you want to have more detailed information refer to the PC software kit manual K I S 16 ...

Страница 18: ...nterface card with USB should be installed in your instrument The USB protocol is spec V1 1 For more detailed information refer to the PC software kit manual If users want to connect the instrument with the computer and use it the port needs to be set to the connection format between them and the transmission format needs to be set to the BMP format nal d the 17 ...

Страница 19: ...h a fast rise time or a high frequency signal Long probe ground leads may cause waveform distortions such as ringing and overshoot Attenuation switch CH 1 Spring GND When the optional probe is used with the x10 x1 select switch set to x10 the input signal to the instrument is attenuated to 1 10 When a signal is too small to be measured with x10 use the mode x1 In this case note that the input impe...

Страница 20: ...distortion in the left presentation is caused by incorrect probe compensation If overshoot or undershoot is present turn the screwdriver adjustment in the probe for a flat top presentation Be sure that the attenuation switch on the probe is set to match with the probe menu selection in the oscilloscope This adjustment remains in effect until changed again CORRECTLY COMPENSATED UNDER COMPENSATED OV...

Страница 21: ...an increase the feature set of your oscilloscope by inserting an interface card Refer to the NOTES TO USERS section in this manual and the PC software Kit manual for detailed description Install the interface card into the rear of DS 1000 series as following procedures Two types of interface card optional are available Be sure of which one you need when you place an order 20 ...

Страница 22: ...21 ...

Страница 23: ...2 DESCRIPTION 22 ...

Страница 24: ...ISPLAY DESCRIPTION 2 1 1 DISPLAY OVERVIEW 1 TRIGGER MODE 2 TRIGGER SOURCE 3 TRIGGER SLOPE 4 TRIGGER COUPLING MODE 5 RUN STOP 6 CH VOLTS DIVISION 7 TIME DIVISION 8 VERTICAL POSITION VALUE 9 TRIGGER LEVEL VALUE 23 ...

Страница 25: ...10 CH1 CH2 POSITION CURSOR 11 TRIGGER LEVEL CURSOR 12 HORIZONTAL TRIGGER POSITION 13 INPUT COUPLING MODE 24 ...

Страница 26: ... factor of the scope waveform CH 1 CH 2 MENU Shows the channel function and channel waveform display on and off MATH MENU Shows the math function CH 1 2 POSITION Adjusts vertical position of the scope waveform 2 1 2 VERTICAL AXIS OPERATION 25 ...

Страница 27: ...MENU 2 1 3 HORIZONTAL AXIS OPERATION TIME DIV Adjusts horizontal axis scale factor of the scope HORIZONTAL MENU Shows the horizontal function POSITION Moves horizontal axis position of the scope 26 ...

Страница 28: ...IGGER MENU Adjust the trigger mode TRIGGER SOURCE Select the trigger signal source SET LEVEL TO 50 Set the trigger level to the middle of the scope waveform TRIGGER LEVEL Selects a starting point of triggered signal 27 ...

Страница 29: ...acquire mode CURSORS Controls the cursor functions UTILITY Sets the utility functions DISPLAY Sets the display mode AUTOSET Automatically displays the optimum waveform of input signals HARDCOPY Prints the waveform RUN STOP Controls the waveform acquisition SINGLE Captures a non periodic signal and a long periodic signal 28 ...

Страница 30: ...menu boxes below the menu title To the right of the each menu box is bezel button you can use to change the menu setting 2 1 7 THE MENU BOX BUTTON AND FUNCTION KNOB CH 1 CH 2 Connects input signal to the channel vertical amplifier CH1 becomes a signal of X axis during X Y operation and CH2 becomes a signal of Y axis during X Y operation EXT TRIG Connects a external trigger signal to the trigger ci...

Страница 31: ...dition AC Edge Adjusted to DC Rising Auto Vertical coupling Trigger type Trigger coupling Trigger slope Trigger mode FunctionSetting Setting AUTOSET If these conditions are not satisfied the following message is diaplayed below the screen Unable to autosetup The autoset function is available only for a stable repetitive input signal For a stable operation an input signal is essential to meet the f...

Страница 32: ...each channel Each item is set individually for each channel 2 2 2 VERTICAL Following description on switches are applied to both CH1 And CH2 equally The vertical axis sensitivity can be set by the VOLTS DIV switch of the Ch1 and CH2 VOLTS DIV 31 ...

Страница 33: ...er via a capacitor Its DC component is cut and only AC component is displayed DC Displayed on the screen in the form of An input is directly connected to the amplifier and the signal including a DC component is displayed Ground Displayed on the screen in the form of An input signal is separated and the input of the vertical amplifier is grounded 3 Probe X1 x10 x100 x1000 Set this to match your pro...

Страница 34: ...n be moved up and down by the position knob When the knob moves to right waveform moves down and when the knob moves to left waveform moves up When this switch is pressed arithmetic and advanced function are displayed 2 2 3 MATH MATH 33 ...

Страница 35: ...gnal of Ch1 Ch2 Invert This displays an inversed waveform signal of Ch2 Displaying a math waveform automatically removes the display of channels used to create the math waveform Math operations are turned off if a channel used in the operation is turned on Addition subtraction and inversion arithmetic of the two channels are able to be carried out to Ch1 or Ch2 by Arithmatic 1 Arithmatic Off Ch1 C...

Страница 36: ...nction But the data in the memory are not cleared Upper Side This decides to be edited portion from upper portion of the waveform The edited portion be adjusted to use function knob And it only moves to the upper side of the reference waveform This mode don t use the others menu except the function knob Lower Side This decides to be edited portion from lower portion of the waveform The edited port...

Страница 37: ... to detect on a time domain record Source Ch1 Ch2 Ch1 Ch1 is selected source as to be transformed FFT Ch2 Ch2 is selected source as to be transformed FFT Window Rectangle Hamming Hanning Rectangle Transforms to rectangular mode Hamming Transforms to hamming mode Hanning Transforms to hannig mode Execute Calculating Execute Calculates the FFT After calculate display of the waveform is stopped Calcu...

Страница 38: ...DIV is slow in and turn to 2ns TIME DIV is fast in MENU MENU MENU 37 Set the horizontal menu Time Reference Center Right Left Control position of horizontal trigger Center Set the position of horizontal trigger to the center of screen Right Set the position of horizontal trigger to the right of screen Left Set the position of horizontal trigger to the left of screen ...

Страница 39: ...elected between trigger source signal and trigger circuit by this switch When coupling switch is pressed AC DC HF Reject and LF Reject are displayed in sequence 2 2 5 TRIGGER MENU Two types of triggering are available Edge and TV A different set of menus display for each trigger type Use edge triggering to trigger on the edge of the input signal at the trigger threshold 38 ...

Страница 40: ...ion displays a status of slope setting behind coupling Screen display of rising edge is and falling edge is Mode Auto Normal Single When MODE function is pressed AUTO NORM and SINGLE are displayed in sequence Setting of trigger mode is displayed at the top left of the screen Auto Without trigger waveform is able to be captured by this function When AUTO mode is triggered forcibly without triggerin...

Страница 41: ... Line This function is solely used in the observation of TV signal and trigger is applied to horizontal synchronization signal Field Trigger is applied to vertical synchronization signal Use TV triggering to trigger on the TV signal 40 ...

Страница 42: ...Trigger is able to be selected from the source such as CH1 CH2 EXT or LINE The channel which is selected as trigger source performs a function of trigger source without connections with display After the display of mode setting source setting is displayed on screen SOURCE This function automatically sets a trigger source signal within the 50 of trigger level range When trigger coupling is AC or LF...

Страница 43: ...ger level is adjusted to the signal level before entering into triggering Trigger point decides a occurring point on edge When the knob turn to the right edge level moves up and turn to the left edge level moves down LEVEL 42 ...

Страница 44: ...channels When range of input signal is out of the ADC input range peak to peak value is less than 2 division or width of 1 cycle is less than 0 4 division on display is displayed When 1 cycle is not captured Invalid is displayed Mean This displays a mean value of 1cycle of currently displayed waveforms When range of input signal is out of the ADC input range peak to peak value is less than 2 divis...

Страница 45: ... width of 1 cycle is less than 0 4 division on display When 1 cycle is not captured Invalid is displayed Width This displays a positive width of 1 cycle of currently displayed waveforms When range of input signal is out of the ADC input range peak to peak value is less than 2 division or width of 1 cycle is less than 0 4 division on display is displayed When 1 cycle is not captured Invalid is disp...

Страница 46: ...e to save waveforms and setup conditions of present working environment and they can be recalled by the user It is used in setting simple working environment and for waveform comparison The saved information could be preserved for a time even if the inside battery is completely discharged or disconnected from the main body This operates the function to save present working condition into memory sp...

Страница 47: ...ff This menu operates to cancel present displayed waveforms and to return to the former waveforms Source Ch1 Ch2 Choose the waveform source to store Save The saved setup information includes the conditions of input coupling display volts division trigger mode trigger coupling trigger source trigger slope trigger level cursor information probe factor LCD brightness display format display type acqui...

Страница 48: ...litches ACQUIRE Push the ACQUIRE button to set acquisition parameters 2 Average Off 2 4 8 16 32 64 128 In this mode next signal is doubled as much as the reciprocal number of average frequency from the current signal This mode is used to reduce a distortion of display resulting from noise in signal The numbers next to Avg are weighted value 47 ...

Страница 49: ... Persist Off This selects refresh display mode In this mode only the newly acquired data are displayed On This selects overwrite display mode In this mode newly acquired data are displayed upon previously acquired data This mode is used to observe noise of signal etc 48 ...

Страница 50: ...s used to set the type and on off mode of cursor Pressing this button OFF Voltage and Time are changed in sequence At every time present measuring value is showed up at the menu display Off This cancels the cursor mode Voltage Measuring the voltage of vertical parameter Two horizontal cursors show up Time Measuring the time of horizontal parameter Two vertical cursors show up 2 Source Ch1 Ch2 Choo...

Страница 51: ...isplays cursor 1 location 4 Cursor 2 Displays cursor 2 location 5 Delta Display the gap between cursors Use the function knob to move the cursors You can move the cursors only while the cursor menu is displayed 50 ...

Страница 52: ...odules The menu explained here relates to the product without module installed Refer to the manual supplied with your interface module for items not discussed here Selecting System Status from the utility menu displays the menus available for obtaining a list of control settings for each group of instrument controls 1 System Status 51 ...

Страница 53: ...y are add SVC This menu is only used for the service engineer 2 Options This menu changes with the addition of option modules The menus explained here relate to the product with no modules installed Refer to the manual supplied with your option module for items not discussed here 3 Do Self Calibration To operate calibration Do Self Calibration is selected In order to perform proper correction be s...

Страница 54: ...ctors Dots of the acquired waveform data form a line and are displayed on the screen As dots form a line square waveform signal or rising edge of pulse is able to be easily observed This is not operated in XY format mode 2 Format YT XY Display mode of waveform is selected by format YT This is a normal type of display and shows a change of signal with the lapse of time XY User compares waveforms of...

Страница 55: ...measures a waveform by moving a waveform to the center of the screen Board Only the frame is displayed When scale is not necessary in measuring the data value of the waveform or when cursor or field display is not necessary this mode is selected 4 Contrast Increase Brightness of LCD is brightened by the stage of 5 5 Contrast Decrease Brightness of LCD is darkened by the stage of 5 6 FUNCTION KNOB ...

Страница 56: ...les the PC to receive and save the BMP format Using EZ Digital s Softview will facilitate saving in the BMP format with ease and convenience RS232C and USB are both supported but USB is faster in saving Softview operates under Windows 98 2000 Centronics Centronics type is needed to send the screen data to a printer directly Centronics type supports HP s PCL level 3 Deskjet and Laserjet printers in...

Страница 57: ...ollowing figures show zoom function When Oscilloscope is RUN status Push RUN STOP button Oscilloscope will be in STOP status If you want to have more waveform Move TIME DIV switch to the next lower time division magnafied Use TIME DIV switch to magnify a waveform Move TIME DIV switch to lower time division and you will see a magnafied waveform 2 3 USING THE FUNCTIONS EFFECTIVELY 56 ...

Страница 58: ...t Off if not 3 Push the TRIGGER MENU button and select the signal slope 4 Adjust the trigger level by using the TRIGGER LEVEL knob 5 Push the SINGLE button on the top of the panel or select single mode in the trigger mode menu Then you can see the single ready condition on the top of the screen RUN means ready condition STOP means the end of single capture If you want to set single ready condition...

Страница 59: ...ing harmonic content and distortion in systems A Analyzing harmonics in 50 and 60 Hz power lines A Analyzing vibration frequency The FFT computes and displays the frequency content of a waveform you acquire as an FFT math waveform This frequency domain waveform is based on the following equation Where x n is a point in the time domain record data array X k is a point in the frequency domain record...

Страница 60: ...the menu button of stop Rectangular Best window for resolving frequencies but worst for accurately measuring the amplitude of those frequencies Best for measuring the frequency spectrum of nonrepetitive signals and measuring frequency components near DC Hamming Very good for resolving frequencies with somewhat improved amplitude accuracy over the rectangular window Hanning Very good for measuring ...

Страница 61: ...3 APPENDIX 60 ...

Страница 62: ...v at maximum bandwidth 2mV div 5V div 3 SPECIFICATION HORIZONTAL SYSTEM Time div Equivalent 2ns div 0 1 div Real time 0 25 div 0 1s div Roll mode 0 2s div 5s div Pre trigger Accuracy Magnification Max 10div 0 01 Zoom In Out Position movement 10 div Resolution Approx 80ps square waveform rising time Input coupling Offset Cross Talk Channel Isolation CH1 CH2 Balance ATT BAL Drift 0 3div h Approx 3 5...

Страница 63: ...ity Ch 1 and Ch 2 Freq 5mV 5V div 2mV div DC 10MHz 0 5div 0 5div 10MHz 80MHz 1 5div 1 5div at 10MHz 60MHz 80MHz MAX BW 2 0div Trigger Type Edge TV Trigger mode AUTO NORM SINGLE Trigger slope Positive Edge Negative Edge Trigger source Ch1 CH2 EXT LINE Trigger couple Trigger sync AC DC LF Reject HF Reject Line Field INT 3div EXT 35 of 4 Vpk Trigger Level Extent Set Level to 50 External trigger sensi...

Страница 64: ...CTIONS SPECIFICATION Automatic Measurements Amplitude Pk Pk RMS Mean Frequency Rise time Falling time period Pulse width positive negative Duty ratio FFT Rectangular Hanning Hamming window Utility System condition Self Calibration Save Recall 10 waveforms 10 front panel setups Math Ch 1 Ch 2 Addition subtraction inversion Auto Setup 50Hz max BW at more than 60mVpk typical External I O option RS 23...

Страница 65: ...y Operating Storage 45 80 RH 35 85 RH EMC CE EN 61326 Size 370 X 167 X 338 unit mm Weight 5 5kg Warranty 1 year Safety CE EN 61010 1 C UL UL 3111 1 CSA 1010 1 CAT II Pollution degree II Ambient Temperature Specification guaranteed 10 35 when automatic calibration is performed in the range of 25 5 SPECIFICATION 64 ...

Страница 66: ...ing Trigger Slope Trigger Level Run Stop Cursor Mode Display Grid Display Format Display Type Display Persistence Acquire Average Acquire Peak Detect LCD Contrast RS 232C Baud rate RS 232C Parity RS 232C Data bit Measure Math Display Recall Display ON DC Coupling 20mV 2 div 1x ON DC Coupling 20mV 2 div 1x 0 1ms AUTO CH1 DC Rising Slope 0 div RUN OFF Full YT Vectors OFF OFF OFF 50 19200 None 8 bit ...

Страница 67: ...The specifications are subjected to change without notice MMA282 620A ...

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