D igital O scilloscope - Department of Electrical Engineering
Contents
1. 38 2 2 6 MEASURE ste 43 2 2 7 SAVEIRE CALLS uicnesksesoes een2ceBQpuknsuiasn icu KA 45 2 2 8 ACQUIRE 47 2 2 CURSORS 49 2 2 10 TMI Y 51 2 2 11 DISPLAY 53 2 2 12 HARDCOPY etm 55 2 3 USING THE FUNCTIONS EFFECTIVELY 56 2 3 1 USING THE ZOOM FUNCTION 4 2 56 2 3 2 USING THE SINGLE FUNCTION 57 2 3 3 USING FFT FAST FOURIER TRANSFORMATION 58 S APPENDUX eee tet 60 3 1 SPECIFICATIONS 222 22 222 61 3 2 FACTORY DEFAULTS ettet 65 AUTO DC HOLD 9555 MEASURE SAVE RECALL ACQUIRE AUTOSET E B VOLIS DIV VOLIS DIV HME DI re 4 ON POSITION ZI 1 1 i 1 Ua ME 7 968U 8 m mm __ 1 1 KEY FEATURES SSE The 16bit high speed microprocessor adoption enables the scope to acquire a typical 100 000 points per second and quickly update the picture on the screen Basic memory length of DS 1152. 12 1 2 7 CLEANING AND MAINTENANCE 13 1 3 NOTES TO USERS 14 1 3 1 NOTICE FOR PROPER MEASUREMENT 14 1 3 2 WHEN CONNECTING PERIPHERAL DEVICES 15 163 3 PROBE sirr 18 T 4 INSTALLATION a 20 1 4 1 POWER CODE 20 1 4 2 INTERFACE CARD 20 2 DESCRIPTION 22 1 itane sinin 22 2 1 KEY amp DISPLAY DESCRIPTION 23 2 1 1 DISPLAY OVERVIEW 2 iini epe pa cic erk d Xa rin tc a RE Ciro neca eria 23 2 1 2 VERTICAL AXIS OPERATION 25 2 1 3 HORIZONTAL AXIS OPERATION 26 2 14 TRIGGER a 27 2 1 5 MENUS isch ox 28 2 1 6 CONNECTORS tici 29 2 1 7 THE MENU BOX BUTTON AND FUNCTION KNOB 29 2 2 MENUS EA DAE E 30 2 2 1 AUTOSET 30 2 2 2 VERTIGAL 31 22 3 Mie 33 2 24 HORIZONTAL 37 2 2 5 TRIGGER
3. Port uut E oe Lec ees sesoseseeuscstsescescsessadimofeceeecececescseselie sd 0 4 3 1 1 1 We i us 8 CH1 i US CH1 80 00 TRG 80 00mVv CH1 80 00mv TRG 80 00mV When connected through RS232C When connected through USB 17 1 3 3 PROBE The first step of measurement is to connect the signals to the instrument properly GROUND CLIP HOOK COVER COVER CAPACITANCE CORRECTION GROUND TRIMMER COVER RETRACTABLE HOOK TIP Probe Attenuation Setting 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 signal is too small to be measured with x10 use the mode x1 In this case note that the input impedance of x1 is different from that of x10 and the mea surable frequency band becomes very low WARNING Attenuation switch Probe Grounding Connect the probe ground lead as close as possible to the point being measured especially when measuring a signal with a fast rise time or a high frequency signal Long probe ground leads may cause waveform distortions such as ringing and overshoot Probe Compensation The probe switch setting is 10X To avoid a measurement error probe compensation must be
4. VERTICAL VOLTS DIV VOLTS DIV b 2 b 2mV 5 E 2mV CH 1 MATH CH2 MENU MENU MENU ae POSITION 5 POSITION AUTO 1 DC STOP The vertical axis sensitivity can be set by the VOLTS DIV switch ofthe Ch1 and CH2 MENU There is a separate vertical menu for each channel Each item is set individually for each channel Display On CH1 2V 10 CH1 80 00mVv TRG 80 00mVv 31 1 Display On Off CH1 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 zzz 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 77 An input signal is separated and the input of the
5. 82 32 681 8404 FACTORY 5F Paradise Venture Tower 708 33 Yeoksam dong Gangnam gu Seoul 135 919 Korea Tel 82 2 3486 9035 Rep Fax 82 2 587 7384 OVERSEAS SUBSIDIARY Morrow Wave Inc 6905 Oslo Circle Suite J Buena Park CA 9062 USA Tel 714 739 3800 Fax 714 739 3805 Home Page http www ezdgt com EZ Digital Co Ltd The specifications are subjected to change without notice MMA282 620A
6. 4 a Displayed waveform can be moved left and right 37 2 2 5 TRIGGER Two types of triggering are available eum Edge and TV A different set of menus display for each trigger type MENU C m SOURCE C SET LEVEL TO 50 1 Edge Use edge triggering to trigger on the edge of the input signal at the trigger threshold AUTO 1 DC STOP TRIGGER Type cime o o shor gs a ETUR Coupling Slope Mode CH1 2V 10 CH1 80 00mVv TRG 80 00m Coupling AC DC HF Reject LF Reject This function decides which part of the signal is transferred to the trigger circuit That is desired coupling type is selected 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 38 AC Only AC component is passed through in the signal and DC component Is removed from the trigger signal DC Trigger signal which includes DC signal is coupled Trigger is applied when DC level of signal intersects with setting trigger level HF Reject High frequency rejection This function interrupts a high frequency component of triggering signal So only the low frequency component is passed through triggering system and then captured Interruption o
7. This warranty is subject to the following conditions and limitations The warranty is void and inapplicable if the defective product is not brought or sent prepaid to our authorized service center or sales outlet within a warranty period Defective product is on EZ Digital Co Ltd s sole judgement indemnified at a purchased price replaced with new one or repaired without charge or with charge In the event warranty service is needed purchaser should get in touch with the service center or sales outlet or properly pack and return the product to the service center or sales outlet 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 case EZ Digital Co Ltd bears the transportation expenses required to send back all the repaired products temporarily and then repair and transportation expenses will be charged against the purchaser by the statement of accounts When the authorized sales agents sell our product they must notify the purchaser of the warranty contents but have no right to stretch the meaning of original warranty contents or offer additional warranty EZ Digital Co Ltd does not
8. Shows the horizontal function POSITION Moves horizontal axis position of the scope 26 2 1 4 TRIGGER TRIGGER MENU SOURCE SET LEVEL 50 TRIGGER 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 2 1 5 5 MEASURE SAVE RECALL ACQUIRE B wm CURSORS UTILITY DISPLAY B MEASURE Controls the measurement functions SAVE RECALL Controls the save recall functions ACQUIRE Controls the 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 2 1 6 5 CH1 EXT TRIG 26 at E PROBE ADJ This outputs squre wave 1V 1kHz for the probe compensation 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 signa
9. CH1 CH2 Balance ATT BAL 2 4 E Y IV HORIZONTAL SYSTEM SPECIFICATION Equivalent 2ns div 0 1 S div Time div Real time 0 25us div 0 1s div Roll mode 0 2s div 5s div 61 Acquisition system SPECIFICATION Max Sample rate 200MS s for one channel 100 5 5 per channel 25GS s per channel in equivalent sampling range TRIGGER SYSTEM SPECIFICATION Freq 5mV 5V div 2mV div DC 10MHz 0 5div 0 5div Sensitivity Ch 1 and Ch 2 10MHz 80MHz 1 5div 1 5div at 10MHz 60MHz 80MHz MAX BW 2 0div INT EXT 35 of 4 Vpk 0 2Vpp DC 150MHz 0 5 150 2 250 2 400 PEAK lt 1kHz 62 DISPLAY SYSTEM SPECIFICATION Display 5 7 inch LCD with CCFL Backlight Front panel intensity control PROBE ADJ SPECIFICATION ADVANCED FUNCTIONS SPECIFICATION Amplitude Pk Pk RMS Mean Automatic Measurements Frequency Rise time Falling time period Pulse width positive negative Duty ratio Rectangular Hanning Hamming window T System condition Self Calibration 10 waveforms save Recall 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 232C SPP USB Hard Copy Hard copy through the SPP or RS 232C Desk Jet Laser Jet with PCL level Supported Printer Printy 2 RS 232C thermal printer 1 SPP is standard paralle
10. In order to perform proper correction be sure to remove all the input signals and probe of input connector before carry out above function 52 2 2 11 DISPLAY MEASURE SAVE RECALL ACQUIRE C C9 CJ CURSORS UTILITY DISPLAY 1 AUTO 1 DC STOP 2V CH1 0 000 4 TRG 000mV 1 Type Dots Vectors DISPLAY Push the DISPLAY button to choose how waveforms are presented and to change the appearance of the entire display DISPLAY Type Format Grid Full Contrast Increase Contrast Decrease 63 This selects connection mode of acquired waveform data Dots Acquired waveform data are displayed on the screen only in the form of dots Vectors 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 two channels by dots and is able to get phase difference between the signals Using this menu 53 3 Grid Full Cross Board This menu sets the type of measuring grid Full Frame axis and grid are all displayed By using this scale adjust waveform to the scale and then measure the value of the wavef
11. 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 42 2 2 6 MEASURE MEASURE Push the MEASURE button to access MEASURE SAVE RECALL ACQUIRE the automated measurement capabilities C It has the ability to display up to five CURSORS UTILITY DISPLAY parameters at a time When this menu is C CJ CJ selected submenu NONE Pk Pk RMS Mean Frequency Rising Time Falling Time Period Width Width and Duty are displayed STOP MEASURE AUTO CH1 DC NONE This cancels the measuring functions of parameter 2V CH1 0 400V TRG 80 00mV Pk Pk This displays a Peak to Peak value of the waveforms of the currently displayed channels That is absolute gap between maximum and minimum amplitude is displayed with volt When input signal is out of the ADC input range is displayed Maximum value and minimum value are equal Invalid is displayed RMS This displays a Root Mean Square value of 1 cycle of the waveforms of currently displayed 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 T
12. done Especially when the probe is charged Connect the probe tip to the CAL 1V output terminal A 1 kHz square wave should be displayed with flat tops Any 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 This adjustment remains in effect until changed again Be sure that the attenuation switch on the probe is set to match with the probe menu selection in the oscilloscope OVER COMPENSATED PROBE COMPENSATION BY CORRECTION SQUARE WAVE 19 1 4 INSTALLATION 1 4 1 POWER CORD Use only power cords designed for your oscilloscope Use a power source CAUTION that delivers 90 to 250 Vacrws 48 to 440 Hz VOLTAGE FREQUENCY RANGE RANGE 90 250 48 440Hz VAC 1 4 2 INTERFACE CARD You can 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 2 DESCRIPTION AUTO CH1 I DC 1 8 968U 25 5 48 968 22 MEASUR
13. judgement area currently set on the screen Upper Side Lower Side Done and cancels comparing function But the data in the memory are not cleared 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 This decides to be edited portion from lower portion of the waveform The edited portion be adjusted to use function knob And it only moves to the lower side of the reference waveform This mode don t use the others menu except the function knob This performs a operation of comparing judgement area set by user with acquired waveform When acquired waveform is in judgement area RUN is maintained and when acquired waveform is get out of the judgement area STOP is displayed and waveform is stopped When comparing function is necessary again maintain RUN by pressing RUN STOP switch The waveform is regenerated when selecting On after setting Off 35 Off On Off Selects not to activate PASS FAIL function Selects to activate PASS FAIL function FFT AUTO CH1 DC STOP 250kHz MATH This allows acquired waveforms to be converted into frequency domain Advanced Functions traces revealing valuable spectral information that E would otherwise be impossible to detec
14. provide any other promise or suggestive warranty and holds no liability for the damage caused by negligence abnormal use or natural disaster EZ Digital Co Ltd is not responsible for damages though it was notified about the danger in advance For more information on service or overall repairs and maintenance of old and decrepit products be sure to contact our service center or sales outlet EZ Digital Co Ltd T PRODUCT CONTENTS OSCILLOSCOPE Set 1 set SUPPLIED ACCESSORIES Operation manual Power cord 100MHz probes x1 x10 2EA Only DS 1100 OPTIONAL ACCESSORIES RS 232C thermal printer 2 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 CONTENTS 1 INTRODUCTION 7 1 1 KEY FEATURES uiii idet o edit tte ee 8 1 2 NOTES FOR A SAFETY OPERATION 9 1 2 1 OPERATING ENVIRONMENT 9 142 2 SAFETY SYMBOLS 0 9 N 1 2 3 POWER SOURCE RELATED WARNINGS 10 1 2 4 PLACE RELATED WARNINGS eene eene 10 1 2 5 OPERATION RELATED WARNINGS 11 1 2 6 SERVICE RELATED WARNINGS
15. referred to service personnel Cleaning If the outside of the case becomes dirty or stained carefully wipe the surface with a cloth moistened with 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 tissue moistened with a mild cleaning agent Take care not to scratch them Do not use abrasive cleanser or strong solvents Let the cleaned parts dry thoroughly before reinstalling the filter and front case If it is installed wet dew may form and blur the waveforms Be particularly careful not to get fingerprints on the filter or LCD face Maintenance This instrument should never be placed in a built in installation such as a bookcase or rack unless proper ventilation is provided Ideal ambient temperature and relative humidity for storing the instrument are 23 C and 60 13 1 3 NOTES USERS 1 3 1 NOTICE FOR PROPER MEASUREMENT It is recommended to allow about 15 minutes after power on as warm up time before starting measurement Traces may drift a little just after power on When measuring a signal with high a
16. 0 is 10kB and that of DS 1150 amp DS 1250 is 32kB Captured waveforms can be zoomed in and analyzed in detail Also its built in 10ns peak detection circuit enables it to capture high frequency noise even at a low speed time div and magnify and analyze it using the zoom in function In addition it can save up to 10 waveforms and provide diversified analysis 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 even in ROLL mode Max 400Vpk input voltage into all channels Convenient Functions Direct single trigger capture function using a hot key Simultaneous 5 waveform informations auto measurement and FFT analysis Auto trigger level setting to 5096 Saving 10 waveforms amp 10 setup parameters Convenient inserting interface card for RS 232C hardcopy and USB 1 2 NOTES FOR A SAFETY OPERATION 1 2 1 OPERATING ENVIRONMENT This instrument will operate to its specifications if the environment is maintained within the following conditions Indoor use Altitude up to 2000m use Operating temperature 0 C 40 C Relative humidity lt 80 Main supply v
17. 232C 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 general Even if the brand differs if the printer has a mode compatible with the PCL level 3 or lower it s possible to use Most printers support this format However printers that provide the PCL format only through software on PCs and the HP 700 printer series are not supported Concerning detailed information for PCL format availability refer to the printer user s manual or visit the printer maker s homepage Thermal Thermal type is enabled only by using SANEI s Printy2 thermal printer that supports RS 232C interface 55 2 3 USING THE FUNCTIONS EFFECTIVELY 2 3 1 USING THE ZOOM FUNCTION First of all set oscilloscope to be in stop status by using RUN STOP button When you change time div rotary switch in stop status waveform is zoomed in Following figures show zoom function AUTO CH1 DC STOP CH1 Te MM Sm When Oscilloscope is RUN status M Mw Push RUN STOP button a Oscilloscope will be in STOP status Probe Position 2 Set to OY CH1 20mV CH2 10 CH1 48 80mV TRG 4360 AUTO CH1 DC STOP CH1 5888 Use TIME DIV switch to magnify a wave
18. 9 5 01910 DS 1000 series Digital Oscilloscope Operation Manual EZ Digital Co Ltd 5 21910 DS 1000 series Digital Oscilloscope Operation Manual Q EZ Digital Co Ltd DECLARATION OF CONFORMITY Manufacture s name EZ Digital Co Ltd Manufacture s Address 222 28 Nae dong Ojeong gu Bucheon si Gyeonggi do R O KOREA 421 160 Declares thatthe product Product name Oscilloscope Model number DS 1XXX X 0 9 Date December 01 2001 Conforms tothe following product specifications Safety EN61010 1 1993 A2 1995 IEC 10101 1990 A1 1992 A2 1995 Modified EMC 61326 1997 A1 1998 Supplementary information The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC Bucheon Gyeonggi EXP Cheol Young Kim Location Quality Assurance Manager WARRANTY This instrument is warranted against defects in workmanship and materials If any failure resulting from a defect in either workmanship or material should occur under normal use within a year from the original date of purchase such failure will be corrected free of charge to the purchaser by repair or replacement of the defective part or parts When the failure is a result of user s neglect natural disaster or accident we charge for repairs regardless of the warranty period
19. E SAVE RECALL ACQUIRE Q555 VOLIS DIV VOLIS DIV on VERTICAL I IME DI 4 2 1 KEY amp DISPLAY DESCRIPTION 2 1 1 DISPLAY OVERVIEW 0 DOD AUTO 1 DC s DISPLAY D Grid Full m Contrast e Increase E 225 4 base sen NONE Decrease 2V CH2 2 500 4 080 d TRG 4 000 1 1 D 6 9 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 10 CH1 CH2 POSITION CURSOR 11 TRIGGER LEVEL CURSOR 12 HORIZONTAL TRIGGER POSITION 13 INPUT COUPLING MODE 24 2 1 2 VERTICAL AXIS OPERATION VERTICAL VOLTS DIV VOLTS DIV amp CH 1 MENU y POSITION POSITION VOLTS DIV CH1 CH 2 Adjusts vertical scale 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 25 2 1 3 HORIZONTAL AXIS OPERATION HORIZONTAL TIME DIV Q 2ns HORIZONTAL MENU POSITION Qv TIME DIV Adjusts horizontal axis scale factor of the scope HORIZONTAL MENU
20. E bs s 8 soos oe 6 8 8 Format Grid Full Contrast Increase Contrast Decrease CH1 2V 0 1205 CH1 0 000 0 000 57 2 3 3 USING FFT FAST FOURIER TRANSFORMATION With Fast Fourier Transform FFT you can transform a waveform from a displayed value of its amplitude against time to one that plots the amplitudes of the several discrete frequencies the waveform has Use FFT in the following applications Analyzing impulse response of filters and Amplifier Analyzing noise in DC power source Measuring harmonic content and distortion in systems Analyzing harmonics in 50 and 60 Hz power lines 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 N 1 j2TIkn N X k y n e n 0 Where x n is a point in the time domain record data array X k is a point in the frequency domain record data array n is the index to the time domain data array k is the index to the frequency domain data array N is the FFT length j is the square root of 1 58 Procedure of Using FFT 1 Push the math menu button 2 Push the menu button of the advanced function to select FFT 3 Select FFT source channel 4 Select FFT window Rectangular Hamming H
21. This mode is used to Observe noise of signal etc 48 2 2 9 CURSORS CURSOR The user can operate the cursor by himself MEASURE SAVE RECALL ACQUIRE and measure the voltage or time of C displayed waveform These functions can CURSORS UTILITY DISPLAY be stopped or canceled automatically in 0 the modes of MEASURE PASS FAIL setting XY format 1 Type Off Voltage Time AUTO 1 DC STOP CURSORS Source Cursor 1 6 000 2V 10 CH1 0 000 TRG This is 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 Choose the waveform on which to take the cursor measurement 49 3 Cursor 1 Displays 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 2 2 10 UTILITY UTILITY Push the UTILITY button to display the MEASURE SAVE RECALL ACQUIRE UTILITY menu The UTILITY menu is CO C c
22. V AUTO CH1 DC STOP HARDCOPY UM ARESTA P E E zcv Format Thermal CH1 2 0 2 CH1 0400 TRG 0 400 15 When using printer operation Centronics settings are as follows AUTO DC STOP HARDCOPY This instrument supports DeskJet and LaserJet with PCL level 3 DeskJet M LaserJet is registered trade mark of HP CHI 2v 0 2515 CH1 0 400 TRG 0 400V LL 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 When using PC communication operation the USB settings are as follows Before communicating with a PC the PC software kit optional should be installed in your PC and the interface 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 AUTO CH1 DC STOP HARDCOPY AUTO CH1 DC STOP HARDCOPY Poi Pod ANM Port
23. V signal CH1 Line STOP TRIGGER Type T UE gt CH1 0 5 20 us CH1 0 180 Sync Line Field 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 40 SOURCE With this function 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 CH1 Input signal of CH1 is used as trigger source 2 Input signal of CH2 is used as trigger source EXT When trigger is operated with signals from external clock or other parts of the circuit or in case an auxiliary trigger is used connect the external trigger signal to the EXT terminal LINE The LINE trigger source uses the line voltage signal as the trigger source SET LEVEL 50 em This function automatically sets a trigger source signal within the 50 of trigger level range When trigger coupling is AC or LF Reject the 50 of trigger level is set at the center of GRID vertical axis When trigger coupling is DC or HF Reject it is set at the 50 of trigger source signal amplitude 41 LEVEL With this function trigger level is
24. Waveforms Setups This operates the function to save present working condition into memory space AUTO CH1 DC STOP SAVE REC Recall Recall Factory CH1 2V 10 CH1 8000 TRG 80 00 Setup 0 1 2 3 4 5 6 7 8 9 The menu displays the memory space to save information and it is able to save upto 10 seup conditions They don t be overlapped with memory space for waveforms 45 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 acquisition type and interface card setup Recall Recalls the instrument settings stored in the location chosen in the setup space Recall Factory You can recall the default Factory Setup to initialize the instrument to a known setup 2 Type Setups Waveforms Waveforms AUTO CH1 DC STOP SAVE REC Type Waveforms Reference Save Recall Source s CH1 21 1us CH1 80 00m 80 00m This operates the function to save waveform being displayed at present into memory space Reference 0 1 2 3 4 5 6 7 8 9 This function displays the memory space to save waveforms and it is able to save 10 waveforms The memory space don t be overlapped with that for setup condition Save Stores the source waveform to the
25. a probe connect the ground side of the probe to the ground of the signal source At a floating status a potential might be produced with respect to other devices or ground resulting in damaging the instrument probe other measuring instruments etc CAUTION Excessive Input Voltage 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 danger AN Maximum input Voltage CH1 CH2 all 400Vpk WARNING Do not Use Non certified Probes Use the probes certified according to EN 61010 1 and EN 61010 2 031 in europe Use the UL listed probes in america 11 1 2 A WARNING as WARNING 6 SERVICE RELATED WARNINGS Damage Requiring Service Do not attempt to service this instrument yourself as opening or removing covers may expose you to dangerous voltage or other hazards Unplug this instrument from the power source and after servicing to qualified service personal under the following conditions When the AC power cord or plug is damaged When the LCD is damaged you must not open the cover during operation There is a risk of electric shock If liquid has b
26. anning Rectangular Best window for resolving frequencies but worst for accurately measuring the amplitude of those frequencies Best window for measuring the frequency spectrum of nonrepetitive signals and measuring frequency components near DC Hamming Very good type for resolving frequencies with somewhat improved amplitude accuracy over the rectangular window Hanning Very good window for measuring amplitude accuracy but degraded for resolving frequencies 5 Push the menu button of stop AUTO CH1 DC STOP 250kHz MATH Arithmetic Advanced Functions Source Window CH1 1v FFT 2008 100 CH1 2 280V TRG 2 080 The FFT math waveform vertical scale is dBVrms which is dB relative to 1 Vrms 0 dB 1 Vnus 59 3 APPENDIX ACQUIRE AUTOSET c oe CURSORS UTILITY DISPLAY puoi em VOLIS DIV VOLIS DIV IME DI ne lt Em ON PASII 1 Aa EL YA y EH 1 Ua EH S Ua v 48 968U CH 1 CH2 60 3 1 SPECIFICATIONS VERTICAL SYSTEM SPECIFICATION Bandwidth DC 100MHz DC 150MHz DC 250MHz Ch 1 and Ch 2 40MHz at 2mV div 40MHz at 2mV div 60MHz at 2mV div Input R amp C 1M amp 1 5 approx 16 pF More than 8 div at maximum bandwidth Sensitivity per division 2mV div 5V div Ch 1 and Ch 2 i ini 0 5 div at 2mV div Cross Talk Channel Isolation Less than 0 3div at 50MHz
27. cancels the arithmatic function Ch1 Ch2 This displays a waveform which adds signals of two channels Ch1 Ch2 This displays a waveform which subtracts Ch2 from Ch1 Ch2 Ch1 This displays a waveform which subtracts Ch1 from Ch2 Ch1 Invert This displays an inversed waveform signal 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 2 Advenced Functuons Off Pass Fail FFT AUTO DC ST P MATH Arithmetic Advanced fone Edit Off 0 400 TRG 0 4 004 Off This cancels the Advanced functions Pass Fail User sets the judgement range of Pass Fail displayed on the screen and compares it with acquired waveforms When this menu is selected submenu On Off Ch1 Ch2 and Edit are displayed This function is automatically canceled when XY format display is operated AUTOSET is operated Measure menu is operated ROLL mode is operated Arithmatic function is operated or Cursor function is operated Source Ch1 Ch2 Ch1 Ch2 Be selected judgement area as to be edited signal source and to be compared signal source Be selected judgement area as to be edited signal source and to be compared signal source Zone Edit Off Upper Side Lower Side Done Off This clears all
28. ccuracy trace declination you can correct the trace position using the automatic calibration function Before starting up this function allow enough warm up time The calibration is classified into software calibration for resorting to the automatic calibration function in the menu and hardware calibration for optimizing the internal circuitry in a wide range The software calibration is recommended when the ambient temperature has excessively changed 5 C or when 1000 operating hours or 6 months has been attained 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 SOFTWARE CALIBRATION FOR OPTIMUM MEASUREMENT The changes in measurement accuracy due to use environments temperature humidity etc can be optimally corrected automatically by activating the calibration It is recommended to perform calibration when any of the following cases applies Before a customer starts to use this instrument first When ambient temperature changes more than 5 compared with that at the time of the previous calibration Every 6 months or 1000 operating hours Optimization of measurement accuracy
29. chosen reference location Recall Turns the reference waveform display on or off On you will be in the mode from which the waveform was saved Off This menu operates to cancel present displayed waveforms and to return to the former waveforms Source Ch1 Ch2 Choose the waveform source to store 46 2 2 8 ACQUIRE Push the ACQUIRE button to set MEASURE SAVE RECALL ACQUIRE acquisition parameters C e CURSORS UTILITY DISPLAY AUTO CHI DC ACQUIRE Peak detect NM appa gt 2us 5 2 On M ene mm Off Persist Off 1 20mV CH2 1 mV Ims CH1 43 50mV TRG 27 20m 1 Peak detect Off On Off Cancels the peak detect mode On Acquires the peak value of the input signal This mode is able to detect glitches 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 3 Persist Off On Refresh or overwrite mode is able to be selected by 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
30. een 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 damage and will open require extensive work by a qualified technician to restore the instrument to instrument to its normal operation Unplug the power cord from the power source before opening the cover and then remove the probe Even if the instrument is disconnected from all the power sources special attention is required in service as the inside capacity might be in charged condition When replacement of fuses or other parts is required be sure the service technician has used replacements parts specified by the manufacturer or have the same characteristics as the original part Unauthorized substitutions may result in fire electric shock or other hazards There is risk of electric shock No user serviceable parts inside Leave repair to qualified personnel Safety Check Upon completion of any service or repairs to this instrument ask the service technician to perform safety checks to determine that the instrument is proper operating condition 1 2 7 CLEANING AND MAINTENANCE Maintenance routines performable by the operator are listed in this section More advanced routines i e procedures involving repairs or adjustments within the instrument should be
31. f high frequency reduces a signal with 300kHz or more LF Reject Low frequency rejection This function interrupts low frequency component of triggering signal Interruption of low frequency reduces a signal with 1kHz or less Slope Rising Falling This function decides at which place the trigger point is found out rising edge or falling edge This function displays a status of slope setting behind coupling Screen display of rising edge is and falling edge is 1 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 this function When AUTO mode is triggered forcibly without triggering note that It is not synchronized with the waveform of display In other words successive capture is not triggered at same point on display Therefore waveform seems to cross and roll on the screen Normal When Trigger is operated oscilloscope is able to capture the waveform by this function Without trigger oscilloscope does not capture the waveform Single Trigger is able to be operated with NORM mode However when trigger is operated in long period or non periodic signal it is in the status of STOP and when trigger is not operated oscilloscope is In stand by status until the trigger is restarted 39 2 Type Edge TV TV Use TV triggering to trigger on the T
32. form Move TIME DIV switch to lower time division and you will see a magnafied waveform Position uu nuc Be CH1 20mV CH2 Omi O 5ms CH1 48 80mV TRG 4 AUTO CH1 DC STOP CH1 x If you want to have more magnafied E isplay waveform Move TIME DIV switch to UTOR Od the next lower time division Probe Position CH1 20mV CH2 1 mV 011115 CH1 48 80mV TRG 43 50mV 56 2 3 2 USING THE SINGLE FUNCTION To capture a single waveform or a noise effectively do the following steps 1 Adjust the VOLTS DIV and TIME DIV to proper ranges 2 Push the ACQUIRE button and choose Peak Detect On if you want to see the peak value or Peak Detect 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 again only push the SINGLE button or the RUN STOP button SINGLE CH1 DC STOP DISPLAY ME MP M 204030 d d s ee Gd o dau ev VU
33. hanged with the addition of interface CURSORS UTILITY DISPLAY m od u les T 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 AUTO 1 DC STOP UTILITY System d Status Options 1 Do Self Calibration 2V 1us CH1 0 000mV TRG 0 000mV 1 System Status Selecting System Status from the utility menu displays the menus available for obtaining a list of control settings for each group of instrument controls AUTO DC STOP STATUS Horizontal Vertical Trigger Misc S C CH1 2V 10 CH1 0 000m TRG 0 000 51 Vertical Lists vertical parameters of channels Horizontal Lists horizontal parameters of channels Trigger Lists trigger parameters Misc Shows the information That is the software version and processor release level If the option module is installed the setting of RS 232C and the setting of hardcopy 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
34. his 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 division or width of cycle is less than 0 4 division on display is displayed When 1 cycle is not captured Invalid is displayed Frequency This displays a frequency value 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 displayed 43 Rising Time This displays a rising time 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 displayed Falling Time This displays a falling time 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 displayed Period This displays a period 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 division or width of 1 cycle is less than 0 4 division on d
35. is required 1 3 2 WHEN CONNECTING PERIPHERAL DEVICES When connecting a printer and a personal computer to the oscilloscope be sure that the oscilloscope the printer and the personal computer are all off and then connect them Pay attention to the direction of the cables and the ports of the peripheral devices Before operation be sure to carry out the setting necessary for the printer and the personal computer For the setting of the printer 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 NOTE Before using peripheral devices Interface card should be installed in this instrument When using thermal printer opertion RS 232C settings are as follows AUTO CH1 DC EE RS 232C BAUD RATE 9600 bps T PARITY BIT None a c aar ae CUN dE Data Bits DATA BIT 8 bit T uL RS 232C Serial cable is 9pin ped i mm male to 25pin male null cable RS 232C thermal printer is eeieebeeieel PIENE beebeeieeies Printy 2 M of SANEI Electric INC p m H Defaults CH1 0 5 CH2 10 2 5 CH1 2000 TRG 20 00m
36. isplay 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 displayed Width This displays a negative width of 1 cycle of currently displayed waveforms of channel 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 not captured Invalid is displayed Duty This displays a duty ratio of 1 cycle of currently displayed waveforms of channel 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 44 2 2 7 SAVE RECALL SAVE RECALL This function is able to save waveforms MEASURE SAVE RECALL ACQUIRE and setup conditions of present working C environment and they can be recalled by CURSORS UTILITY DISPLAY the user It is used in setting simple working C C CJ 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 1 Type Setups
37. l Port 2 DeskJet and LaserJet is registered trademark of 3 Printy2 is registered trademark of SANEI Electric Inc 63 GENERAL SPECIFICATION 90VAC 250VAC Power Consumption MAX 35W Ambient Temperature Specification guaranteed 10 C 35 C when automatic calibration is Operating 0 40 performed in the range of 25 5 Storage 10 60 C Humidity Operating 45 80 Storage 35 8595 RH CE EN 61010 1 C UL UL 3111 1 CSA 1010 1 Safety CAT Pollution degree 64 3 2 FACTORY DEFAULTS ITEM FACTORY SETTING CH1 Display ON CH1 Input Coupling Mode DC Coupling CH1 Volts div 20mV CH1 Vertical Position 2 div CH1 Probe Attenuation Setting 1x CH2 Display ON CH2 Input Coupling Mode DC Coupling CH2 Volts div 20mV CH2 Vertical Position 2 div CH2 Probe Attenuation Setting 1x Time Base 0 1ms Trigger Mode AUTO Trigger Source CH1 Trigger Coupling DC Trigger Slope Rising Slope Trigger Level 0 div Run Stop RUN Cursor Mode OFF Display Grid Full Display Format YT Display Type Vectors Display Persistence OFF Acquire Average OFF Acquire Peak Detect OFF LCD Contrast 50 96 RS 232C Baud rate 19200 RS 232C Parity None RS 232C Data bit 8 bit Measure OFF Math Display OFF Recall Display OFF 65 SALES 222 28 Nae dong Bucheon si Gyeonggi do 421 160 Korea Tel 82 32 681 8380 Rep
38. l to the trigger circuit 2 1 7 THE MENU BOX BUTTON AND FUNCTION KNOB When you press a menu button on the front panel the associated menu title displays at the top right screen There can be up to five 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 29 2 2 1 AUTOSET AUTOSET The front panel setting are automatically performed so that the optimum waveform is displayed for an input signal and CO changes itself in succession With this function the following items can be automatically set according to the characteristics of an input signal FunctionSetting Seng Vertical coupling Trigger type ACQUIRE Trigger coupling Adjusted to DC Trigger slope Trigger mode Condition The autoset function is available only for a stable repetitive input signal For a stable operation an input signal is essential to meet the following conditions a Frequency 50Hz maximum bandwidth typical b Amplitude more than 60mV NOTE If these conditions are not satisfied the following message is diaplayed below the screen Unable to autosetup 30 2 2 2 VERTICAL Following description on switches are applied to both CH1 And CH2 equally VOLTS DIV VERTICAL VOLTS DIV VOLTS DIV b b NJ sys sys
39. oltage fluctuations not exceed 10 of the nominal voltage After turning on the instrument please allow a pre heating period of as long as some 15 minutes This instrument has been qualified to the following EN61010 1 Category Installation Over voltage 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 Refer to accompanying documents for Safety related information _ Wherever the symbol is present see NOTES FOR A SAFETY OPERATION part in this manual cl Ground Risk of hazard which may cause injury to human body or danger to life WARNING WARNING appears on the instrument and in this manual do not proceed until its suitable conditions are understood and met Risk of hazard which causes fire or serious damage to the instrument or CAUTION other equipment Do not proceed until its suitable conditions are met 1 2 3 POWER SOURCE RELATED WARNINGS CAUTION Protection of Power Cord and Unplugging Power supply cords should be routed so that they are not likely to be waked on or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and the point where they exit from the instrument For added protection for this instrument during a lightening storm when it is left unattended and unused for long periods of time unplug it from the power sou
40. orm data Cross Frame and axis are displayed Cross 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 590 5 Contrast Decrease Brightness of LCD is darkened by the stage of 5 6 FUNCTION KNOB Brightness of LCD is changed by the stage of 1 54 2 2 12 HARDCOPY HARDCOPY Need Interface Card Push the HARDCOPY button to print a hard copy of the display The hardcopy function requires that an interface card RUN STOP with Centronics or RS 232C be installed Q and connected to a printer 1 Refer to the manual supplied with your interface card for instructions on connecting and using the interface card To use Hardcopy the instrument needs to be set appropriately The setting can be adjusted under Options in the Utility menu Detailed information about setting the menu can be referred to NOTES TO USERS Hardcopy supports 3 types BMP Centronics Thermal BMP BMP type is enabled only when used to interface with the PC To use BMP as a Hardcopy required are additional programs that enables 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 RS
41. rce This will prevent damage to the instrument due to lightening and power line surges Overloading Do not OVERLOAD power source and extension cords as this can result in a risk of fire or electric shock 1 2 4 PLACE RELATED WARNINGS A WARNING Object and Liquid Entry Never push 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 away from damp air water and dust Unexpected trouble may be caused when the instrument is placed in a damp or dusty place FLAMMABLE AND EXPLOSIVE SUBSTANCE Avoid using this instrument where there are gases and where there are flammable and explosive substances in the immediate vicinity Unstable Location Do not place this instrument on an unstable cart stand tripod bracket or table The instrument may fall causing serious injury to a person and serous damage to the instrument Do not place or use the instrument in a place subject to ventilation 1 2 5 OPERATION RELATED WARNINGS Power Switch Before plugging the power cord in be sure to check that the power switch is set to off for protection of the instrument Ground Connection When connecting
42. t on a Window j x time domain record Wee FFT 2008 10 CH1 2 280V 2 080 Source Ch1 Ch2 Ch1 Chl 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 Calculating Displays the status of calculating 36 2 2 4 HORIZONTAL HORIZONTAL TIME DIV 5 a QV 3 POSITION Qo Set the horizontal menu HORIZONTAL TIME DIV HORIZONTAL MENU em POSITION Qo CH1 2 1us CH1 0 000 TRG 80 00mV TIME DIV A time axis range can be set by the TIME DIV knob When the knob turn to 5s TIME DIV is slow in and turn to 2ns TIME DIV is fast in AUTO DC STOP Horizontal Mer ax M ROS MoD EE S tado AME Time Reference Center 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 POSITION HORIZONTAL TIME DIV HORIZONTAL MENU POSITION 5
43. 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 OV Offset pertorms a function similar to the vertical position knob 32 POSITION The displayed waveform can 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 VERTICAL VOLTS DIV VOLTS DIV POSITION t 2 2 3 MATH MATH VERTICAL When this switch is pressed arithmetic VOLTS DIV VOLTS DIV and advanced function are displayed SENU C POSITION POSITION AUTO DC MATH Arithmetic Off Advanced Functions CH1 2V 10 CH1 80 00mVv TAG 80 00mVv 33 1 Arithmatic Off Ch1 Ch2 Ch1 Ch2 Ch2 Ch1 Ch1 Invert Ch2 Invert AUTO CH1 DC STOP MATH Addition subtraction and inversion arithmetic of the Advanced two channels are able to Arithmetic ue carried out to Ch1 or Ch2 by Arithmatic CHI AV px ET TEN CH1 6 320 TRG 6 480V Off This
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