EasyScope II for DS1M12 Help
Contents
1. Zero Padding Off Bandwidth 25 000Hz RMS A 2 175 00 RMS B 1 045 00 The picture below shows the same input signal with x4 zero padding The scroll bar at the bottom of the screen may be used to scroll back and forth through the data buffer O 2006 USB Instruments 31 EasyScope Il for DS1M12 Help icxi ile FFT Window Spectrum 1024 Point FFT Spectrum Magnitude Window Rectangle Averaging Off Zoom x2 Averaging Zero Pad Zero Padded to 4096 samples Bandwidth 25 000Hz RMS 1 087 00 RMS B 522 20 O 2006 USB Instruments Using EasyScope II 32 3 2 11 5 File Menu The File menu shown below allows access to the two features described below Save As Print Save As This allows the FFT screen to be saved as a Windows Bitmap bmp file When selected a Save As dialog box appears and prompts the user for a filename Print The print option allows the user to send the FFT screen directly to an installed printer 2006 USB Instruments 33 EasyScope Il for DS1M12 Help 3 2 11 6 FFT Window Menu The FFT screen display can changed to use a number of different windowing algorithms The available windows are displayed when the FFT Window menu is selected shown below v Rectangle Triangle Cos2 Gauss Hamming BlackMan The default window is Rectangle O 2006 USB Instruments Using EasyScope II 34 3 2 11 7 Spectrum Menu The FFT screen display can be changed to us2. 4 2 Uninstalling EasyScope Il From the Start gt Programs gt EasyScope II for DS1M12 menu on the Windows Toolbar select the Uninstall DS1M12 Option and click on it E EasyScope II for D51M12 e EasyScope II Help W Uninstall EasyScope II for DS1M12 This will start the uninstaller program The following confirmation screen will appear tr Uninstalling EasyScope II for DS1M12 Xl Welcome to the EasyScope II qi for DS1M12 Uninstallation gt This uninstall process will remove EasyScope II For DS1M12 from gt gt your computer Click Cancel if you do not want to remove this application Click Next to continue the uninstall process If you are sure you want to uninstall the EasyScope Program click on Next If not click on Cancel to abort the Uninstall process Clicking on Next starts the uninstall sequence When the EasyScope Software is run for the first time it automatically creates an INI file easyscope ini to store program settings and two BMP files DSBright bmp and DSNormal bmp containing the images of the Normal and Bright screen themes It is safe to delete these if asked by the uninstaller In the course of using EasyScope the user may have saved some screen images and should decide if they want to keep these or not O 2006 USB Instruments Appendix 64 fe Uninstalling EasyScope II for D51M12 EasyScope II for DS1M12 has been successfully uninstalled
3. Click Finish to complete the uninstallation Click on Finish O 2006 USB Instruments 65 EasyScope Il for DS1M12 Help Index 8k 50 A A 40 A Cursor 40 about 56 AC 22 acquire 14 42 active 24 adjust 41 auto 19 41 51 automatic 41 automatically 41 average 29 averaging 29 B B 40 B Cursor 40 background 43 bar 25 Blackman 33 buffer 25 50 C capture 14 42 CHA 19 51 clipping 16 52 color 43 colour 43 control 13 15 16 19 22 23 24 25 26 27 28 29 30 32 33 34 36 38 40 41 51 controls 13 cos 33 cos2 33 coupling 22 csv 43 Cur 38 49 CurA 49 Cur Horiz 38 49 cursor 27 38 40 49 customise 43 customize 43 D data 25 30 dB 34 DC 22 delay 19 51 delayed 19 51 detect 41 difference 38 40 49 display 26 divisions 15 16 driver 5 10 drivers 5 10 DS1M12 3 4 5 10 13 14 15 16 18 19 22 23 24 25 26 27 28 29 30 32 33 34 36 38 40 41 42 43 49 50 51 52 56 57 58 59 60 61 62 63 DS1M12 1k rbf 58 DS1M12 2k rbf 58 DS1M12 4k rbf 58 DS1M12 8k rbf 58 DS1M12A 60 DS1M12A B not found 60 duration 38 49 O 2006 USB Instruments Index 66 ay ps easyscope 3 4 5 10 13 14 15 16 18 19 22 23 24 25 26 27 28 29 30 32 33 34 38 40 41 42 43 49 51 52 56 57 58 59 60 61 62 63 edge 19 51 error 58 59 60 61 62 exit 14 42 57 W failed 59 failed to configure DS1M12 59
4. ve s lw Output Signal Meter A Meter B f The XY button changes to a YT button when XY mode is active O 2006 USB Instruments 27 EasyScope Il for DS1M12 Help 3 2 11 FFT Display 3 2 11 1 FFT Overview A fast Fourier transform FFT window may be accessed by clicking the FFT Display button FFT The FFT window will appear and is shown below W bs1M12 FFT Display E nl xl File FFT Window Spectrum 1024 Point FFT Spectrum Magnitude Window Rectangle l laveraging Off Zoom x1 12 500 Hz Amplitude E Amplitude mv Hz is Averaging Zero Padding Off Bandwidth 25 000Hz RMS A 2 175 00 RMSB 1 045 00 There are two pairs of cursors which may be used to measure differences in frequency To the top of the cursors are marker blocks 1 and 2 for each active trace on the chart To move a cursor place the mouse pointer over the marker block you wish to move and holding down the left mouse button drag the cursor to the point you wish to measure Channels can be made active or inactive by clicking on the ChA and ChB buttons The coloured panel on the button is illuminated when the channel is active The units for the vertical scale may be changed between linear and logarithmic units by clicking on the blue area beneath the chart next to the word Amplitude When the zoom function is active the scroll bar at the bottom of the plot area may be used to scan through the
5. The wizard searches for suitable drivers in its driver database on your computer and in any of the following optional search locations that you specify To start the search click Next If you are searching on a floppy disk or CD ROM drive insert the floppy disk or CD before clicking Next ptional search locations Floppy disk drives M CD ROM drives Specify a location Microsoft Windows Update lt Back Cancel O 2006 USB Instruments Installing EasyScope Il 12 Check the box for CD ROM drives and un check all others NOTE If the CD is not available and the EasyScope software has already been installed then check the Specify a location box and use the Browse button to select the Drivers Windows Drivers sub directory of the EasyScope Program Files directory instead Keep Clicking on Next until the installation is finished as per the screen below Found New Hardware Wizard Completing the Found New D Hardware Wizard Qc D51M12 Stingray Channel B Windows has finished installing the software for this device To close this wizard click Finish Back Cancel Click Finish to complete the installation of the first device If using Windows 2000 the second device will be installed automatically For other versions of Windows the above process may need to be repeated to complete the instrument installation O 2006 USB Instruments 13 EasyScope Il for DS1M12 Help Usi
6. FFT data O 2006 USB Instruments Using EasyScope II 28 3 2 11 2 Man Clicking the Man button in the FFT window enables the up down buttons and changes the button caption to Auto This allows the vertical scale of the plot to be changed manually Clicking on Auto will enable autoscaling for the vertical axis O 2006 USB Instruments 29 EasyScope Il for DS1M12 Help 3 2 11 3 Averaging The averaging option may be used to help eliminate noise from measurements The averaging options available are off 5 10 20 and 50 sweeps O 2006 USB Instruments Using EasyScope II 30 3 2 11 4 Zero Pad Zero padding may be used to artificially increase the number of data points included in the FFT The default is no zero padding and using the 1024 points obtained from the data buffer The FFT is always 1024 samples around the trigger point even if 2K 4K or 8K buffer used Zero padding will allow the use of either the standard 1K buffer or zero padded 2K 4K 8K or 16K data sets Increasing the zero padding has the effect of stretching the frequency axis which will allow more accurate measurement with the cursors The picture below shows the FFT of a 5V 3 472KHz square wave on channel A and a 4V 1KHz sine wave with no zero padding TETTE TES lg x File FFT Window Spectrum 1024 Point FFT Spectrum Magnitude Window Rectangle lAveraging Off Zoom x1 x 6 674 Amplit mv e 7 Hz oo my E Averaging
7. ROM drive of your PC The following menu will appear after a few seconds Click on the Install EasyScope button to launch the EasyScope installation program The following screen will appear O 2006 USB Instruments Installing EasyScope ll 6 2 Installing EasyScope II for DS1M12 Welcome to the EasyScope II for DS1M12 Installation This setup program will install EasyScope II For D51M12 on your computer Click Exit if you do not want to install this application Click Next to continue the installation WARNING This program is protected by international copyright law and treaties Unauthorized reproduction or distribution of this program or any portion of it may result in severe civil and criminal penalties and will be prosecuted to the maximum extent of the law 2 Installing EasyScope II for DS1M12 License Agreement To proceed with the installation you must accept this License Agreement Please read it carefully If you agree with the terms and conditions of the License Agreement check the I agree box and O 2006 USB Instruments 7 EasyScope Il for DS1M12 Help click on the Next button to continue the installation process else click on the Exit button The Next button is disabled if you do not agree to the terms and conditions Agreeing to the terms and clicking on the Next button brings up the following screen 2 Installing EasyScope II for DS1M12
8. Site This will connect to the Internet and take the user directly to the USB Instruments web site where information can be found on products and updates On Line User Manual This option will take the user to the EasyScope Il manual section of the USB Instruments web site On Line F A Q This link will open the frequently asked questions F A Q section of the USB Instruments web site O 2006 USB Instruments 57 EasyScope Il for DS1M12 Help 3 4 Quitting EasyScope Il EasyScope can be exited by either accessing the Exit option of the File menu or clicking the Windows Close button Xl in the top right hand corner of the window O 2006 USB Instruments Appendix 58 4 Appendix 4 1 Error Messages 4 1 1 File Not Found This error occurs when EasyScope II cannot find the file to program the DS1M12 hardware Easyscope ii for dsimiZ xl e File not Found zs To resolve this problem click OK quit the EasyScope application and check that the files DS1M12_1k rbf DS1M12_2k rbf DS1M12_4k rbf and DS1M12_8k rbf exist in the same directory as the EasyScope application program If the files are there try to re launch the EasyScope application ensuring that the instrument is connected to the PC If the files are not there it may be retrieved by re installing from the installation CD 2006 USB Instruments 59 EasyScope Il for DS1M12 Help 4 1 2 Failed to Configure DS1M12 This error occurs when the EasyScope
9. a negative pulse The user can then select options to trigger on a pulse of length greater than or less than the time indicated by the top slide bar The value of the slide bar is displayed in the box to the right and may be changed by clicking on and dragging the slider This triggering method can be an extremely useful tool for finding glitches Delay From Trigger The Delay From Trigger option also displays the Advanced Trigger and Delayed TimeBase Options window This allows the data capture to be delayed from the trigger point by a specified time by using the by using the Delay From Main Time Base slide bar O 2006 USB Instruments Using EasyScope II 52 3 3 6 Tools Menu Several functions are available through the Tools menu shown below Meter CHA Meter CHB Set CHA GND Adjust Clear CHA GND Adjust Set CHB GND Adjust Clear CHB GND Adjust SignalGen Test Mode Meter CHA The Meter A option provides the same functionality as the Meter A button This makes the meter window for channel A visible Meter CHB The Meter B option provides the same functionality as the Meter B button This makes the meter window for channel B visible Set CHA GND Adjust The impedance of the USB ground lead can require a small adjustment to the ground used by the oscilloscope The Set ChA GND Adjust option enables the user to auomatically adjust the ground point for sensitive measurements When selected the following message will app
10. have the same functions as the Cursor X Cursor A and Cursor B buttons respectively Horizontal v Vertical CHA v Vertical CHB O 2006 USB Instruments Using EasyScope II 50 3 3 4 Samples Menu The Samples Menu can be used to change the data buffer size 8K 4K 2K ik Increasing the data buffer size provides a larger trace display but can produce long acquisition times at slow timebase settings 2006 USB Instruments 51 EasyScope Il for DS1M12 Help 3 3 5 Trigger Menu In addition to the basic trigger settings available on the front panel this menu shown below allows advanced triggering options to be configured v Edge Pulse gt Delay From Trigger The default mode is edge triggering which can be set to trigger on a ve rising or ve falling edge using the front panel controls Pulse Selecting Pulse from this menu disables edge triggering and enables pulse triggering The user must select either Negative or Positive pulse from a sub menu see below and is then provided with an Advanced Trigger window also below Negative Positive Advanced Trigger And Delayed TimeBase Options P x Pulse Width LessThan Greater Than Negative Pulse Delay From Main Time Base cf VP DAC OL ES CST DO M GEH 90 SLOT A DA VO D Ve DU AA P V BEA DEA D DOT LET S1 Mono CEU o EST oC E DT US E o p RT IO EU EE BC BC ES Jo RAT DE EE O8 3 EO Fr o ET E The example shown is for
11. Destination folder Select a destination folder where EasyScope II For DS1M12 will be installed C Program Files USB Instruments EasyScope II for D51 Lose we o e Select the directory you wish to install the EasyScope software into A default directory is shown on the screen Unless you have good reason to change it we suggest you use the default suggested by the installation program Click on the Next button to commence copying the files to the EasyScope program directory 2006 USB Instruments Installing EasyScope Il 8 2 Installing EasyScope II for DS1M12 Installing Files Copying EasyScope II For DS1M12 files to your computer A progress screen shown above will appear as the files are installed After a few seconds you should see the Installation was completed successfully message Click on the OK button to complete the final stage of the installation process 7 installing EasyScope II for DS1M12 EasyScope II for DS1M12 has been successfully installed Click Finish to complete the installation O 2006 USB Instruments 9 EasyScope Il for DS1M12 Help The installation process is now complete You can launch the EasyScope program from the desktop by double clicking on the EasyScope icon pictured below PJ EasyScope II for D51M12 You can also launch the EasyScope program from the Start gt Programs gt EasyScope Il for DS1M12 menu on th
12. Ext trigger selection controls the function of the shared BNC connector to the right of the DS1M12 with the green LED Output The output button is disabled when Ext trigger is selected as this configures the BNC connector as an input The Output button determines whether the shared BNC connector is configured as an input or an output If the trigger option is not set to Ext then the signal generator output may be used The Output button enables the signal generator output The output is active when the blue panel is illuminated The output waveform can be configured through the SignalGen option of the Tools menu O 2006 USB Instruments 25 EasyScope Il for DS1M12 Help 3 2 9 Horizontal Slide Bar The horizontal slide bar beneath the plot area may be used to scroll forward and backward through the data buffer The trigger point is in the middle of the buffer To operate the slide bar click on the slider positioned in the centre by default and drag it to the desired position The display will update as this is done O 2006 USB Instruments Using EasyScope II 26 3 2 10 XY The XY button changes the trace display from a Voltage versus time YT format into a XY format Channel A is mapped to the X axis and Channel B is mapped to the Y axis Mf EasyScope II for DS1M12 ioj xl File Screen Cursors Samples Trigger Tools Help Running 1K Samples Trigger Auto ChA ChB Eyt um
13. II application cannot detect any DS1M12 instruments connected to the PC when it is launched E e Failed to Configure DSIMIZA Ensure that the instrument is connected to the PC and that the correct drivers are installed then re launch the EasyScope II application 2006 USB Instruments Appendix 60 4 1 3 DS1M12A B Not Found This error can occur when trying to run the EasyScope application with no DS1M12 hardware connected to the PC E x e DS1M124 B Not Found To resolve this connect a DS1M12 to the PC and run the application again If this has no effect check that the drivers are installed correctly O 2006 USB Instruments 61 EasyScope Il for DS1M12 Help 4 1 4 FT Write General IO Error This error may occur if the DS1M12 is unexpectedly disconnected from the PC while the program is running E xi e FT Write General IO Error A message box with this error may appear several times but will clear and run as normal after clicking OK on each message box that appears O 2006 USB Instruments Appendix 62 4 1 5 FT GetQueueStatus General IO Error This error may occur if the DS1M12 is unexpectedly disconnected from the PC while the program is running A message box with this error may appear several times but will clear and run as normal after clicking OK on each message box that appears O 2006 USB Instruments 63 EasyScope Il for DS1M12 Help
14. LE PARES EVER EXER din acc qu aan Specie uU Ens RO M EE LEA ANMELDEN LEE Signal e ee Meter A and Meter B a CUNSOR JG curii iii Es EE eee eee eee Cursor A and Cursor Bass esses is YE EYE Ca O nd ER EE VEN ERR ees winder EN EXE Oss AUTO SOE e 3 MenB FUnellons occidi ne aro dE c steep Lente danses EDIDI EL ud EROS subs is atada File Menu ss passa o na o sis TD aaa nda nos Geni nina os 42 I 0 dlle 43 Cursors Menu Samples Menu Trigger Menu 22e jose Tools mMe 52 Help Menu ie eiie i ot NE ic etai pci cac ue lala a 56 4 Quitting EasyScope ll T 57 2006 USB Instruments Contents Il Part IV Appendix 58 1 Error Messages ca File Not Found Failed to Configure DS1M12 DS1M12A B Not Found ET Writ General lO ERROR secas M FT GetQueueStatus General IO ERO oiii oo eerie cons ae eo basica so ques gun FREE PU 0S sencteveasesesceceesiceentaresee tees 62 2 Uninstalling EasyScope ll treten eee se 63 Index 65 O 2006 USB Instruments 3 EasyScope Il for DS1M12 Help Introduction Welcome to EasyScope Il for DS1M12 EasyScope II is the easy to use but powerful Digital Sampling Os
15. Voltage Frequency The meter functions may also be accessed through the Tools menu O 2006 USB Instruments Using EasyScope ll 38 3 2 14 Cursor X The Cursor X button is used to enable or disable the horizontal curs The horizontal cursors may be used to measure the duration of a section of a waveform as shown below Running 1K Samples Horiz C1 4 960 ms The values of the two cursor positio the difference between them The diff cha by clicking on it If the dis change to frequency units ayed at the bottom left of the pol area along with rence has a blue background and the units may be shows time units and the user clicks on it the units will a IIQ 2006 USB Instruments Running Horiz 4 960 ms Similarly if the display shows frequency units a click on the blue area will change the units to time units 3 2 15 Using EasyScoy The Cursor A re used or disable the vertical cursors e vertical cursors can be used to measure the voltage difference between two points of a tr Running 1K Samples Edge Triggered Delta 4 0 V The values of the cursor pos difference betweer positions are displayed at t veen them he bottom of the plot along with the O 2006 US en by sik 6 USB Instrument o 41 EasyScope Il for DS1M12 Help 3 2 16 Auto Set Clicking the Auto Set button will launch the aut
16. able Please note that if a gain setting is too high for the input signal clipping will occur To avoid clipping select a larger voltage scale In addition the settings depend on if the oscilloscope probe used is a x1 1MW input impedance or a x10 10MW input impedance If a x10 oscilloscope probe is used then enable the X10 setting by clicking on the X10 button located below the rotary switch This will re scale the switch and display cursor settings by a factor of 10 In the picture above the oscilloscope is setup for a x1 probe The panel below shows the oscilloscope setup for a x10 probe Volts Div 20 5 0 100 10 EE n 0 50 n 02075 AC Volts Div The current gain setting is also displayed on the bottom right of the oscilloscope panel alongside the sampling rate The presence of X indicates that the X10 button is active O 2006 USB Instruments 17 EasyScope Il for DS1M12 Help O 2006 USB Instruments Using EasyScope II 18 3 2 4 GND Reference The ground OV reference is shown by a small arrow on the left hand side of the screen The colour of the arrow matches the colour of the trace display The default colours are yellow for channel A and magenta for channel B To adjust the ground reference setting use the Gnd buttons on each channel control panel Each Gnd reference button will adjust the ground reference for that channel only The Gnd reference can be changed both in idle mode and in r
17. aption of the button changes to Stop The Single button is greyed out as the two functions are mutually exclusive To stop the capture click on the Stop button and the oscilloscope will change back into idle mode ES The Single button captures one screen s worth of data then returns the program to idle mode When the Single button is clicked the instrument waits on the trigger conditions being met before updating the display with a single buffer of data and the caption of the Run button changes to Stop The Single button is greyed out as the function is currently running If the instrument does not trigger it can be returned to idle mode by clicking the Stop button EZ Es The last captured data buffer will remain displayed on the screen as long as the user does not change any of the oscilloscope settings If desired the screen display can be saved to a Windows Bitmap bmp format file exported to a comma separated values csv file for analysis using third party programs or can be printed by any printer connected to the P C These subjects are dealt with in later topics An alternative to the Run Stop button is provided through the File Menu at the top of the application screen Click on File to select the drop down menu shown below Run v Stop Exit Click on Run or Stop as desired Clicking on Exit will quit the EasyScope application O 2006 USB Instruments 15 EasyScope Il for DS1M12 Hel
18. cilloscope application program for the USB Instruments DS1M12 Stingray It runs on any USB 1 1 or USB 2 0 equipped PC using Windows 98 ME 2000 or XP EasyScope II for DS1M12 5 x File Screen Cursors Samples Trigger Tools Help Edge Trove TimeBase T Div 20020045 4ms Trigger Auto ChA ChB Ext Ms ve s b Signal Meter A Meter B O 2006 USB Instruments Introduction 4 1 2 EasyScope Il Features Attractive easy to use visual display F F T Fast Fourier Transform display 2 oscilloscope channels Advanced trigger settings including edge and pulse triggering Delayed timebase function Signal generator External trigger Integrated digital Volt meters Auto Set function Timebase from 2 ms div to 50 ms div Input ranges from 0 01 V div to 5 V div O S D markers for voltage measurement O S D markers for time frequency measurement Save oscilloscope screens to Windows BMP files Export 10 most recent oscilloscope traces to CSV file Screen printout facility AC DC coupling support Support for x1 and x10 probes User defined oscilloscope display colour themes Variable persistence mode display Load and save colour themes to file O 2006 USB Instruments 5 EasyScope Il for DS1M12 Help 2 Installing EasyScope II 2 1 Installing the EasyScope Il Software Before connecting the instrument to the PC insert the supplied installation disk into the CD
19. e Windows Toolbar EasyScope II for D51M12 e EasyScope II Help p Uninstall EasyScope II For DS1M12 As shown above you also have access to the EasyScope Help files and Program Uninstaller from there Before using EasyScope the USB drivers need to be installed This is done by plugging the instrument into a spare USB port on the PC The instrument should be plugged into a USB hub port of your PC or alternatively a self powered USB hub one that has it s own power supply If this is the first time that the instrument has been plugged in Windows will then request the USB drivers for your product See Installing the USB Drivers for further details O 2006 USB Instruments Installing EasyScope Il 10 2 2 Installing the USB Drivers Before using EasyScope the USB drivers need to be installed This is done by plugging the instrument into a spare USB port on the PC The instrument should be plugged into a USB port on your PC or alternatively a self powered USB hub one that has it s own power supply If this is the first time that the instrument has been plugged in Windows will request the USB drivers for your product and will display a Found New Hardware Wizard dialog box The example below is for Windows 2000 but the procedure is very similar for other Windows versions Please note that the instrument uses a single USB connection but has two USB channels that the driver will install as channel A and channel B Connect the inst
20. e a number of different ways of scaling the Y axis through the spectrum menu Power v Magnitude Phase The available scaling options are Power V Magnitude mV and Phase Rad As indicated in the FFT Overview section by clicking the blue area on the axis of the FFT plot the units can be changed between linear and logarithmic for each of these settings The default spectrum is Magnitude O 2006 USB Instruments 35 EasyScope Il for DS1M12 Help 3 2 12 Signal The Signal button displays or clears the configuration window for the signal generator output Please refer to the Signal Generator section in the Tools menu for more information on the signal generator functions O 2006 USB Instruments Using EasyScope II 36 3 2 13 Meter A and Meter B The Meter A and Meter B buttons display small panels shown below showing 3 measurements of the data displayed at that time for each channel The default measurements are mean Voltage true RMS Voltage and frequency Channel A Meters Configure Channel B Meters x Configure The measurements displayed can be changed by clicking the Configure button at the bottom of the Meters panel which brings up the following window O 2006 USB Instruments 37 EasyScope Il for DS1M12 Help Select Measurement Unit Peak to Peak Voltage E Available measurements are Mean Voltage True RMS Voltage Peak to Peak Voltage Minimum Voltage Maximum
21. e persistence value of every pixel is decremented by the persistence decrement value after a trigger and trace display event The minimum persistence value is limited to 0 Eight different colors can be selected to display a certain persistence value range The colors for each pixel value range can be changed by clicking on the color box and selecting an alternative color from the color selection menu The default persistence mode colors can be restored by clicking on the Restore Default Colors button Save To CSV Text File This option exports the ten most recent oscilloscope traces to a comma separated values csv file Column A contains the most recent trace for Channel A while column B contains the most recent trace for Channel B Columns S and T contain the oldest trace data for Channel A and Channel B respectively This can be used with 3 party programs for example Microsoft Excel to manipulate and re plot the data The plot below was obtained from Excel using an exported csv file In addition it is possible to save a scope trace to a CSV file and use this as the source for the signal generator custom waveform The data in column A most recent trace from Channel A of this file is used by the signal generator EasyScope 2 0 Exported CSV Data Analysed in Excel Voltage V Sample Number O 2006 USB Instruments 49 EasyScope Il for DS1M12 Help 3 3 3 Cursors Menu The options in the Cursors menu shown below
22. ear Corro x Setting Ch DC GND Offsets Ensure Oscilloscope probe is set to X1 setting Then connect Channel 4 probe tip and GND to external GND point Connect a scope probe set to x1 gain and connect the probe tip and probe ground lead to an external ground reference After clicking OK the scope performs a routine in which it cycles through each input gain setting the adjusted ground level When the ground offset has been set the V Div text shown on the oscilloscope display is shown on a red background Clear CHA GND Adjust Selecting this option will remove any active ground level adjustment from the measurements for channel A Set CHB GND Adjust O 2006 USB Instruments 53 EasyScope Il for DS1M12 Help The impedance of the USB ground lead can require a small adjustment to the ground used by the oscilloscope The Set ChB GND Adjust option enables the user to auomatically adjust the ground point for sensitive measurements When selected the following message will appear Connect a scope probe set to x1 gain and connect the probe tip and probe ground lead to an external ground reference After clicking OK the scope performs a routine in which it cycles through each input gain setting the adjusted ground level When the ground offset has been set the V Div text shown on the oscilloscope display is shown on a red background Clear CHB GND Adjust Selecting this option will remove any active ground level ad
23. fast 27 28 29 30 32 33 34 fast Fourier transform 27 28 29 30 32 33 34 features 4 13 FFT 27 28 29 30 32 33 34 fle 43 58 file not found 58 found 58 60 Fourier 27 28 29 30 32 33 34 frequency 27 28 29 30 32 33 34 38 49 52 FT GetQueueStatus 62 FT Write 61 function 24 27 28 29 30 32 33 34 functions 13 G gain 16 41 Gauss 33 General IO Error 61 62 generator 24 GND 18 ground 18 H Hamming 33 hardware 59 help 56 Horiz 38 49 horizontal 25 38 49 HTML 56 HTML help 56 illuminate 43 image 43 impedance 22 input 22 install 5 10 63 installation 5 10 63 installing 5 10 63 instrument 13 14 15 16 18 19 22 23 25 26 27 28 29 30 32 33 34 36 38 40 41 42 43 49 51 52 56 57 58 59 60 61 62 63 introduction 3 inverse 23 invert 23 IO 61 62 gls level 19 51 linear 34 log 34 logarithmic 34 magnitude 34 manual 28 max 52 maximum 52 mean 52 measure 38 40 menu 42 50 meter 52 MeterA 36 Meter A button 36 MeterB 36 Meter Bbutton 36 meters 36 52 min 52 minimum 52 mode 52 mV 18 19 51 2006 USB Instruments 67 EasyScope Il for DS1M12 Help negative 19 51 0 of set 18 on line 56 output 24 overview 3 13 pad 30 padding 30 peak 52 peak to peak 52 phase 34 picture 43 points 30 positive 19 51 power 34 print 32 43 program 59 pulse 19 51 rectangle 33 reference 18 remove 63 RMS 52 root 52 r
24. justment from the measurements for channel B SignalGen Selecting the SignalGen option from the tools menu displays the configuration window for the signal generator output shown below DSIMIZA Signal Generator Jr MINI ta cus T Invert This allows the operator to select a pre defined waveform from e DC output 2006 USB Instruments Using EasyScope II 54 Sawtooth Square Sine Triangle Pulse Each of these waveforms may be adjusted in amplitude ground offset and frequency In addition there is an option to load a custom waveform from a CSV file This file should have one column of millivolt values one for each sample The maximum number of samples permitted is 1024 It is possible to save a scope trace to a CSV file and then use this file as the source for the signal generator custom waveform from channel A data If the file contains more than 1024 data points only the first 1024 points will be used to generate the pattern The signal generator operates from a 500kHz clock The frequency dial selects a divider of between 1 and 255 that is applied to the 500kHz clock The output frequency is also dependent on the number of samples selected The output frequency is given by Output Frequency 500kHz Divider Samples For small divider values the output frequency changes can be large For example Samples 16 and Divider 2 gives an Output Frequency of 15625Hz Samples 16 and Divider 3 gives a
25. n Output Frequency of 10417Hz Consequently small frequency dial changes can result in large output frequency changes especially with small divider values An Auto samples option is available that automatically sets the number of samples to provide a more linear response to frequency dial changes The output from the signal generator will not be active until the Output button is active and the scope has triggered if it is running Also the signal generator output will not be available when an external trigger source is being used Test Mode In test mode the EasyScope does not acquire real data but provides simulated data from a counter This allows the communication with the PC to be verified The display observed in test mode should always be a saw tooth type wave with clipping occurring see picture below The wave is at a frequency of 244 1Hz O 2006 USB Instruments EasyScope Il for DS1M12 Help 1K Samples f Clipping CHA Test mode must be disabled to acquire real data Edge Triggered 50 0 KSa s ms O 2006 USB Instruments Using EasyScope II 56 3 3 7 Help Menu The following options are available through the Help menu shown below HTML Help About USB Instruments Web Site On Line User Manual On Line F A Q HTML Help Selecting HTML Help from the menu will launch this help file About The About option displays version information and release dates USB Instruments Web
26. ng EasyScope Il EasyScope ll Overview The EasyScope screen is split into several functional areas as shown in the picture below The sections that follow illustrate how to use the settings to control the functions of the instrument WB EasyScope II for D51M12 5 Fie secen Cursors Samples Trigger Tools Help TimeBase Settings o OverSample Basic Trigger Settings AS RAS ERA DS E ERAS ARG E Auto E 01 ft Trigger Volts Div Input Voltage Settings ACIDC Coupling Adjust Ground Reference Horizontal Slide Bar Channel Selection Tabs Signal Generator Configuration Window ShowHide Signal Run Option Generator Function Buttons Output 2006 USB Instruments Using EasyScope II 14 3 2 3 2 1 Front Panel Functions Run Stop and Single Buttons On starting EasyScope the program is in idle mode and displays two buttons on the bottom toolbar with the captions Single and Run In order to display a trace on the oscilloscope you need to click on either of the Run or Single buttons On clicking the Run or Single buttons captured data will be displayed on the screen providing that the trigger conditions are met or auto trigger is enabled and the trace display buttons are active The Run button is used to continuously capture and display data When the Run button is clicked the capture display begins and the c
27. o set function The button caption will read Cancel while the auto set function is running Aut m S et The auto set function attempts to home in on a signal and display it clearly on the plot area by optimising the timebase and gain settings for the detected signal If no signal is detected the auto set function will terminate The auto set function may be cancelled by clicking Cancel O 2006 USB Instruments Using EasyScope II 42 3 3 Menu Functions 3 3 1 File Menu The File menu shown below allows alternative access to the Run and Stop functions also accessible through the Run Stop button on the front panel Run v Stop Exit The Exit option allows the user to quit the application and has the same function as the Windows Close button X O 2006 USB Instruments 43 EasyScope Il for DS1M12 Help 3 3 2 Screen Menu The screen menu shown below allows access to options for customising the appearance of the EasyScope interface and exporting data or images to files The menu items have the following functions Illuminate The illuminate option controls the brightness of the grid on the scope display With the grid illuminated it is a bright green colour 2006 USB Instruments Using EasyScope II 44 K Sa es When the grid is not illuminated it is a dark green These colours are the default and may be customised through the Screen Menu options below 2006 USB In
28. o trigger on by selecting ve rising edge A on the display indicates ve edge triggering O 2006 USB Instruments Using Ee Running g EasyS Edge Triggered or ve falling edge on the display indicates ve e gt triggering O 2006 US en b sik 6 USB Instrument o Running Uset as an arrow ger Level buttons to set the d V Papas a T to the right of the rrow VOU A trace el uis trigger line marker on the display is a blue A channel B i the trigger line marker is red For an external r there is no line Using EasyScope II 22 3 2 6 AC DC Coupling AC DC coupling is controlled by miniature relays inside the oscilloscope To select AC or DC coupling click on the AC DC selector switch on each channel control panel This will instruct the oscilloscope to change the coupling from AC to DC or vice versa for that channel The current selection is highlighted in green to the right of the switch m The above picture shows AC coupling selected O 2006 USB Instruments 23 EasyScope Il for DS1M12 Help 3 2 7 Invert An invert button is located on each of the channel control panels Bin Clicking the invert button has the effect of flipping the captured data about the ground reference value for that channel 2006 USB Instruments Using EasyScope II 24 3 2 8 Output The Output button along with the
29. on The persistence increment decrement and colors are selected in the Persistence Mode Setup window Infinite persistence can be selected by setting the persistence decrement to 0 O 2006 USB Instruments 47 EasyScope Il for DS1M12 Help WM EasyScope II for D51M12 ci x File Screen Cursors Samples Trigger Tools Help C CES TimeBase T Div 200 2 003 ms 100us c Sms 50us E 10ms 20us Ww F 20ms 10us 4 5us S ms 2us OverSample Trigger Volts Div Auto 10 ChB 005 50 Ext 0 02 obi ad AC a Be Gnd v Signal Auto Set f Persistence Mode Seitings This window enables the variable persistence mode options to be configured DS1M12 Persistence Setup x Persistence Increment i i i Persistence Decrement J n Persistence Colors EH NEN ES 0 NH EH NH ES 0 NH 1 15 16 31 3247 4863 6479 80 95 96 111 112 127 Restore Default Colors Ch ChB The persistence increment can be set to a value of between 1 and 64 Every time a display pixelis O 2006 USB Instruments Using EasyScope II 48 activated by the oscilloscope trace the persistence value of that pixel is incremented by the persistence increment value The maximum persistence value is limited to 127 The persistence decrement can be set to a value of between 0 and 15 The persistence decrement value is also limited to the persistence increment value 1 Th
30. p 3 2 2 Timebase Settings The timebase settings are adjusted by clicking on the rotary switch in the Timebase Panel There are 14 possible settings ranging from 2 us division fastest to 50 ms division slowest Please note at the lower speed settings there will be a noticeable delay between clicking on the Run button and the trace appearing on the oscilloscope screen This is because the sampling conversion rate is low and it takes more time to capture a buffers worth of data TimeBase T Div 200u us n OverSample The button for OverSample will become checked for timebase settings of 20ms or less when triggering on channel A or channel B Oversampling is disabled for Auto trigger When oversampling is active the display will only show the trace for the channel that is being used as the trigger source Oversampling can be turned off by clicking the OverSample control The timebase setting changes the sampling rate of the oscilloscope The sampling rate is displayed on the bottom right of the oscilloscope panel shown below Sec 25 0 KSa s 2 ms v A2 Bx O 2006 USB Instruments Using EasyScope II 16 3 2 3 Input Gain Settings The input gain is adjusted by clicking on the Volts Div rotary switch on each of the channel settings control panels shown below Channels A and B have independent gain settings Volts Div Volts Div 02 0 5 02 0 5 10 10 s S 2 0 i There are 9 gain settings avail
31. rument to a spare USB port on the PC or self powered hub The following screen will appear to begin guiding you through the driver installation Found New Hardware Wizard RT Welcome to the Found New 3 Hardware Wizard SS This wizard helps you install a device driver for a hardware device To continue click Next lt Back Cancel Click Next to proceed with the installation The following screen will appear O 2006 USB Instruments 11 EasyScope Il for DS1M12 Help Found New Hardware Wizard Install Hardware Device Drivers Fates device driver is a software program that enables a hardware device to work with wy an operating system This wizard will complete the installation for this device e DS1M12A device driver is a software program that makes a hardware device work Windows needs driver files for your new device To locate driver files and complete the installation click Next What do you want the wizard to do Search for a suitable driver for my device recommended C Display a list of the known drivers for this device so that can choose a specific driver lt Back Cancel Select the option box for Search for a suitable driver for my device recommended and click Next Found New Hardware Wizard Locate Driver Files i Where do you want Windows to search for driver files ey Search for driver files for the following hardware device e DS1M12A
32. struments EasyScope Il or DS1M12 Help Save Screen Image to File This allows appears and prompts the user to provide g Setup Printer llows configurat of a printer that is al orientation Add dedi Ima a Qanna winda im yocope window Ime Load Background from file Allows the user to load a bitmap image the plot area to be saved to a as th a file name f cope window to the s Bitmap bmp file or the image y installed Options inclu printer o the printer de pa e background for the plot area per size and Using EasyScope II 46 Save background to File Allows the user to save the current background to a file as a bitmap image Customise Screen Colours This brings up a sub menu shown below that allows full customisation of the colours fonts and backgrounds used Colours can be reset to the original scheme by selecting Restore Default Colors Background Grid v Show Ticks Channel Trace Channel B Trace CHA Measurement Cursor CHB Measurement Cursor Timing Frequency Cursor Text Font Marker Blocks Restore Default Colors Save Screen Colors to File The Customize Screen Colors menu can be used to select the display color theme which can then be saved to file col Different colors can be used in Illuminate and non Illuminate modes Persistence Mode A variable persistence mode display can be selected using this opti
33. un 14 42 Em samples 50 save 32 43 saveas 32 43 scale 15 16 18 28 scroll 25 seek 41 set 41 signal 24 Signal generator 35 single 14 42 size 30 50 slide 25 software 5 13 14 15 16 18 19 22 23 24 25 26 27 28 29 30 32 33 34 38 40 41 42 43 49 51 52 56 57 58 59 60 61 62 63 specification 3 4 spectrum 34 square 52 stingray 3 4 5 10 13 14 15 16 18 19 22 23 24 25 26 27 28 29 30 32 33 34 36 38 40 41 42 43 49 50 51 52 56 57 58 59 60 61 62 63 stop 14 42 a Te Udiv 15 test 52 time 15 38 49 timebase 15 41 timing 38 Timing Cursor 38 tools 52 transform 27 28 29 30 32 33 34 triangle 33 trigger 19 51 uninstall 63 un install 63 uninstallation 63 un installation 63 uninstalling 63 un installing 63 USB 10 usb instruments 56 user 56 user manual 56 2006 USB Instruments Index 68 ge v div 16 vertical 28 40 49 volt 52 voltage 16 40 49 52 volts 16 40 49 52 W web 56 website 56 width 19 51 window 27 33 wizard 10 XY Mode 26 zero 18 30 O 2006 USB Instruments
34. un mode Gnd 2006 USB Instruments 19 EasyScope Il for DS1M12 Help 3 2 5 Trigger Settings Basic trigger settings are configured using the controls on the trigger panel Trigger The default trigger mode is for edge triggering Other trigger modes are explained in the Trigger Menu section Auto Allows the scope to free run and constantly collect data without waiting for a trigger event ChA Forces the scope to wait on a trigger event on channel A defined by the other trigger controls before the display is updated ChB Forces the scope to wait on a trigger event on channel B defined by the other trigger controls before the display is updated Ext Forces the scope to wait on a level sensitive external trigger event When this option is selected the ve ve button is replaced with a High Low button shown below High Lowe This will cause the scope to trigger when the external trigger input signal is above or below the external trigger level Please note that this option uses the right hand BNC connector with the green LED Setting the external trigger configures the right hand BNC connector as an input Consequently the signal generator output is not available when the DS1M12 is using an external trigger source Selecting Ext trigger when the signal generator output is active will stop the signal output The external trigger voltage must be in the range 3 5V to 3 5V Select a rising or falling edge event t
35. us USBInstruments USB Instruments EasyScope Il for DS1M12 Stingray Help 2006 USB Instruments EasyScope Il for DS1M12 Help Table of Contents Part Ill Introduction 3 Welcome to EasyScope Il for DS1M12 in issrssneeennereennenennenennnneenennenn 3 Easy5copell Fealures o niu poete BIN D cu Lu Lr 4 Installing EasyScope Il 5 Installing the EasyScope Il Software ss iiniissinnennennnennennnes 5 Installing the USB Drivers rudes caso resa ubi nnn 10 Using EasyScope Il 13 EasyScope ll Overview ai aidaa sese nena ein hee 13 Front Panel FURCUONS oie titio comes pasto Pass dies XR REENN patas senaste 14 Run Stop and Single Buttons Timebase Settings i IUJUSeCInESOUDDDLAe e GND Reference x es et eiie Glen LD iet ie apii iot ducti ie eel iude Trigger Settings AC DC Cou pining eet ll M Output isso Daio ice recibe a Horizontal Slide Bar irrito orto eie ehe es soa adresi aet ia Spina CE casas ERE OLD FREE ERI AAEN Reia ERES E E ERES XY pa FET Display E E ee eee EFT VEEM canc sd D DABIS in O DS ad oi doc Man e ew Tite o OS PR EE TTD TIERE ERE PAE o uo RISE EG cr ation pho career ax v Euer bulbs estu tar a e ded rrr ues FFT Window Men ursos ter cv Y ER ECRIRE EL E
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