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B&K 2190D 100 MHzDigital Storage Oscilloscope

1. fa ARTA SC Simplified Chinese Bae PIC Traditional Chinese English English n pall Arabic Language Francais French Deutsch German Pycckn Russian Espa ol Spanish Portugu s Portuguese 102 ah Japanese Sao Korean Italiana Italian Press this button to enter second Next Page Page 1 4 jape Do Self Cal Do Self Test UTLITY System Status Sound Counter Lanquage English Next Page Page 14 Figure 3 54 Utility Menu Screen 1 Table 3 51 Utility System Menu 2 Lae Auto self emendation Run the screen test program Run the keyboard test program Run the LED test program Screen Test Keyboard Test LED Test Back USB Configures the USB port to USBTMC interface Use this for remote communication via SCPI USBTMC Next Page Press this button to enter third page Page 2 4 103 UTILITY Do Self Cal Do Self Test Setup Figure 3 55 Utility Menu Screen 2 Table 3 52 Utility System Menu 3 opon semne Desevption id Update Update the firmware of the firmware oscilloscope using a USB flash Drive Press this button to enter the Pass Fail Pass Fail menu Press this button to enter the Record waveform record menu Next Page Page 3 4 Press this button to enter fourth page 104 UTILITY Firmware PassiFail Record lO Setting Figure 3 56 Utility Menu Screen 3 Table 3 53 U
2. Hanning narrow band random Rectangular Hamming Hamming noise Asymmetric has slightly better 3 transients or bursts frequency resolution than Hanning Single frequency Best magnitude worst waveforms to find Blackman j frequency resolution higher order harmonics Magnifying the FFT Spectrum You can magnify and use cursors to take measurements on the FFT spectrum The oscilloscope includes an FFT Zoom option to magnify horizontally press this option button to select 1X 2X 5X or 10X Moreover you also can turn the Universal knob to magnify FFT waveform horizontally in a 1 2 5 step To magnify vertically turn the Volts div knob Measuring an FFT Spectrum Using Cursors You can take two measurements on FFT spectrums magnitude in dB and frequency in Hz Magnitude is referenced to 0 dB where 0 dB equals 1 VRMS You can use the cursors to take measurements at any zoom factor Use horizontal cursors to measure amplitude and vertical cursors to measure frequency If you input a sine signal into channel 1 follow these steps e Measure FFT Amplitude 1 Input a sine signal to channel 1 and press the AUTO button 36 au Pw 10 11 12 13 14 Press the MATH button to enter the MATH menu Press the Operation option button to select FFT Press the Source option button to select CH1 Press CH1 button t
3. Return to the first page of Video Trigger menu 52 Line Nurm Next Page Page 12 Figure 3 25 Video Trigger Menu Operating Instructions 1 Set up Type e Press the TRIG MENU button to display Trigger menu e Press the Type option button to select Video 2 Set up Polarity e Press the Polarity option button to select LU or 3 Set up Synchronization e Press the Sync option button to select All Lines Line Num Odd Field and Even Field e If you select Line Num you can turn the Universal knob to set the appointed line number 4 Set up Standard e Press the Next Page Page 2 2 option e Press the Standard option button to select PAL SECAM or NTSC 53 Slope Trigger Trigger on positive slope or negative slope of waveform according to setup time of the oscilloscope Table 3 21 Slope Trigger Function Menu 1 Option Setting Instruction Trigger on positive slope of Type Slope negative slope according to setup time of the oscilloscope CH1 Select trigger source CH2 Source EXT EXT 5 bie Select trigger condition Eta E When Spie Sie She 4 Turn the Universal knob to set Time slope time Time setup range is lt Set time gt 20ns 10s Enter the second page of slope Next Page Page 1 2 peg p trigger 54 KF Time Figure 3 26 Slope Tr
4. Universal knob to select Average 3 Press the Averages option button to see the effects of varying the number of running averages on the waveform display Averaging reduces random noise and makes it easier to see the details of a signal 4 5 Triggering on a Video Signal Observe the video circuit in a piece of medical equipment and use the video trigger to obtain a stable display e Triggering on Video Field To trigger on the video fields follow these steps Press the TRIGGER MENU button to see trigger menu Press the top option button and select Video Press the source option button and select CH1 Press the Sync option button and select Odd Field or Even Field Press the Standard option button and select NTSC 6 Turn the horizontal Time Div knob to see a complete field across the screen 7 Turn the vertical Volts Div knob to ensure that the entire video signal is visible on the screen ee ha o e Triggering on Video Lines To trigger on the video lines follow these steps 1 Press the TRIGGER MENU button to see the trigger menu 2 Press the top option button and select Video 3 Press the Sync option button and select Line Num and turn the universal knob to set a specific line number 130 4 6 Press the Standard option button and select NTSC Turn the Time Div knob
5. 112 Source CH1 Operate Figure 3 64 Pass Fail Screen 1 Table 3 57 Pass Fail Menu 2 Option Setting Description Output signal when pass Pass condition is detected Output yt Fail Output signal when fail condition is detected When On stops test when output On occurs Stop On Output P P Off When Off continues test when output occurs Mask Setting Enter the Mask Setting menu Return to the Pass Fail main Return menu Return to the first page of Next Page Page 2 2 pag Pass Fail menu 113 Source CH1 Operate Figure 3 65 Pass Fail Screen 2 Table 3 58 Mask Settings Menu 1 Option Setting Description X Mask Turn the Universal knob to set the a range of horizontal clearance to the xdiv waveform lt 0 04div 4 00div gt Y Mask Turn the Universal knob to set the a range of vertical clearance to the ydiv waveform lt 0 04div 4 00div gt Create Create a test mask according to the Mask above clearance Internal Select position to store created Location External mask Next Page Page 1 2 Emer the Seeon page of Mask Setting menu 114 Location N age 38KHz Page 12 M 568ns M Figure 3 66 Mask Menu Screen 1 Table 3 59 Mask Settings Menu 2 Option Setting Description Save Store created mask setting Load Recall stored mask setting Return to the m
6. MEASURE button to enter Auto cursor measure mode menu to select the parameter that you want to measure Figure 3 40 Auto Mode Auto Measurement When you take automatic measurements the oscilloscope does all the calculation for you The measurements use all the recorded points in the memory which are more accurate than measurements made using the graticule lines or cursor measurements because these measurements are confined to be made by only using points on the display and not all the data points recorded by the oscilloscope Press the MEASURE button for Automatic Test There are three auto measurement types Voltage Measure Time Measure and Delay Measure There are a total of 32 measurement parameters 80 Table 3 37 Auto Measurement Menu Option Description Voltage Press this button to enter the Voltage measure menu Time Press this button to enter the Time measure menu Delay Press this button to enter the Delay measure menu All Mea Press this button to enter the All Measurement menu Return Press this option button to return to the home page of the auto measure menu MEASURE AllMea Figure 3 41 Auto Measure Menu Table 3 38 Auto Voltage Measurement Menu Option Setting Description Select input signal Source CH1 CH2 source for Voltage measure eae Vin Von V Press the Type Vmax Vmin Vamp PP PP P button or turn the
7. Take CH1 for example e Press CH1 Next Page Page 1 3 gt Invert gt On CH1 Invert Figure 3 12 Invert Waveform Screen 6 Using the Digital Filter e Press CH1 Next Page Page 1 3 Filter display the digital filter menu Select Filter Type then select Upper Limit or Lower Limit and turn the Universal knob to adjust them e Press CH1 Next Page Page 1 3 Filter gt Off Turn off the Digital Filter function 29 Fitter Type Sa Upp_Limit bof 24 56MHz Figure 3 13 Digital Filter Menu e Press CH1 gt Next Page Page 1 3 Filter gt On Turn on the Digital Filter function Fitter Type at Upp_Limit 566 6KHz Adjust at limit Figure 3 14 Digital Filter Adjustment Screen 30 3 8 Math Functions Math shows the results after and FFT operations of the CH1 and CH2 Press the MATH button to display the waveform math operations Press the MATH button again to remove the math waveform display Table 3 7 Math Function Menu Function Setting Description Math operates between signal Operation FFT p 8 source CH1 and CH2 Source A CH1 CH2 Select CH1 or CH2 as Source A Source B CH1 CH2 Select CH1 or CH2 as Source B on Invert the MATH waveform Invert off Turn off MATH Invert function Next Page Page 1 2 Enter the
8. Utility menu Press the Update Firmware option button Read the on screen notes carefully before proceeding Press the SINGLE button to enter into the directory menu of the USB flash drive Use the universal knob to select the firmware file on the USB flash drive and select Confirm to start the update When completed turn off the oscilloscope and turn on again The software will then be updated The oscilloscope will require self 111 calibration after the update Go into the utility menu s second page and select Do Self Cal to run self calibration WARNING Do NOT turn off the power while the oscilloscope is updating Otherwise the firmware will be corrupted and the instrument may not be able to reboot again Pass Fail The Pass Fail function can monitor changes of signals and output pass or fail signals by monitoring the input signal and checking if it is within the predefined mask or not Table 3 56 Pass Fail Menu 1 Option Setting Description Enable On Turn on Pass Fail function Off Turn off Pass Fail function Source CH1 Select signal input channel CH2 Operate gt Press to run the Pass Fail test Press to stop the Pass Fail test Msg Display On Turn on times display information of the waveform pass fail Off Turn off times display information of the waveform pass fail Next Page Page 1 2 Press this button to enter second page of Pass Fail menu
9. Vamp after the waveform falling Deh E RPREshoot Defined as Vmin Vlow Vamp before the waveform rising 84 Defined as Vmax Vhig Vamp before the FPREshoot waveform falling Measures the time between 10 and 90 of the Rise Time first rising edge of the waveform y Measures the time between 90 and 10 of the Fall Time first falling edge of the waveform FUU The duration of a burst BWid Measured over the entire waveform Eya Width Measures the time between the first rising t edge and the next falling edge at the waveform twig 50 level a Width Measures the time between the first falling A edge and the next rising edge at the waveform 50 FWI level tu Measures the first cycle waveform Duty Positive Duty Cycle is the ratio between positive pulse width and period Measures the first cycle waveform Negative Duty Cycle is the ratio between negative pulse width and period The amount one waveform leads or lags another in time Expressed in degrees where 360 degrees Phase comprise one waveform cycle IA The time between the first rising edge of source X FRR and the first rising edge of source Y Bra The time between the first rising edge of source X FRF and the first falling edge of source Y F The time between the first falling edge of source X FFR and the first rising edge of source Y RA The time between the first falling edge of source
10. Vtop Vbase Vavg Mean Vrms Pee y Type Universal knob to Cycle Vrms FOVShoot FPREShoot select Voltage ROVShoot RPREShoot measure parameter 81 Display the corresponding icon and measure value of your selected Voltage measure parameter Return to the first Return page of auto measurement menu Table 3 39 Auto Time Measurement Menu Option Setting Description Select input signal Source CH1 CH2 source for Time measure Press the Type Period Freq Width Width Rise button or turn the Type Time Fall Time BWidth Duty Universal knob to Duty select Time measure parameter Display the a a yt t corresponding icon and measure value eG uy ar of your selected time measure wy 4H WL parameter Return to the first Return page of auto measurement menu 82 Table 3 40 Auto Delay Measurement Menu Option Setting Description Source CH1 CH2 Select any two input signal source for Delay measure Type Phase FRR FRF FFR FFF LRR Press the Type button or LRF LFR LFF turn the Universal knob to select Delay measure parameter Display the corresponding Ry ont HA icon and measure value of your selected Delay TL ASL MYL measure parameter Return Return to the first page of auto measurement menu Table 3 41 All Measurement Menu Option Se
11. put the couple set to the AC then Type Video you could trigger the NTSC PAL and SECAM video signal CH1 Select the input source to be the CH2 trigger signal Source zo Ext and Ext 5 use the signal applied to the EXT TRIG EXT 5 connector as the source Normal Normal triggers on the negative edge of the sync pulse Polarity Inverted Inverted triggers on the positive edge of the sync pulse Line Num Sync All lines Select appropriate video sync Odd field Even Field Enter the second page of Next Page Page 1 2 E p A Video trigger menu Table 3 20 Video Trigger Function Menu 2 Option Setting Description r When you select the video Type Video type put the couple set to the 51 AC then you could trigger the NTSC PAL and SECAM video signal Standard NTSC Pal Secam Select the video standard for sync and line number count Mode Auto Use this mode to let the acquisition free run in the absence of a valid trigger This mode allows an untriggered scanning waveform at 100 ms div or slower time base settings Normal Use this mode when you want to see only valid triggered waveforms when you use this mode the oscilloscope does not display a waveform until after the first trigger Single When you want the oscilloscope to acquire a single waveform press the SINGLE button Set up Enter the Trigger setup menu Next Page Page 2 2
12. 2 Preliminary Check Complete the following steps to verify that the oscilloscope is ready for use Verify AC Input Voltage Verify and check to make sure proper AC voltages are available to power the instrument The AC voltage range must meet the acceptable specification as explained in section 2 1 Connect Power Connect AC power cord to the AC receptacle in the rear panel and press the power switch to the ON position to turn ON the instrument The instrument will have a boot screen while loading after which the main screen will be displayed Self Test The instrument has 3 self test options to test the screen keys and the LED back lights of the function menu and channel keys as shown below Test Keyboard Test LED Test Figure 2 1 Self Test Menu To perform the self test please refer to the Self Test section for further instructions Self Cal This option runs an internal self calibration procedure that will check and adjust the instrument To perform the self calibration please refer to the Self Calibration section for further instructions Check Model and Firmware Version The model and firmware version can be verified from within the menu system Press Utility and select System Status option The software firmware version hardware version model and serial number will be displayed Press the Single key to exit Function Check Follow the steps below to do a quick check of the oscilloscope s f
13. Check the signal source on the trigger interface whether or not it matches the signal channel 2 Check the trigger mode normal signal should use the 136 5 6 7 edge trigger mode The video signal should use the Video Trigger mode The signal would display steadily only when using matching trigger mode 3 Attempt to change the coupling into HF Reject or LF Reject display so that the High low frequency noise will be filtered When pressing RUN STOP button nothing displays Check whether or not the trigger mode on the trigger interface is in normal or single and then check the trigger level to see if it is over the waveform range If yes please move the trigger level to the middle position or set the trigger mode to the Auto position You can also press the Auto button to set it up automatically After the Acquisition is set to Averages or Display Persistence time is set too long the waveform refreshes slowly This is a normal condition for these settings The signal is displayed as a ladder like waveform 1 This phenomenon is normal The time base may be too slow Turn the horizontal SCALE knob to increase horizontal resolution to improve the display 2 Maybe the display Type is set to Vectors You could set it to Dots mode to improve the display 137 7 Specifications All specifications apply to measurements with a 10X probe To verify that the
14. Depth option button to select Displayed or Maximum Press the Para Save option button to select On or Off Press the Save option button then you ll go into the Save Recall interface Create a file name then press the Confirm button within 5 seconds there will be a message Save data success displayed on the screen Now the CSV file has been saved to the USB flash drive 101 NOTE The maximum number of data points of a waveform that can be saved as a CSV file into USB drive is 40000 pts depending on the timebase setting when data depth is set to maximum The actual number depends on the time base setting the channels that are active and whether data depth is set to display or maximum See below table for maximum data points available in each timebase when data depth is set to maximum Number of points saved to CSV file data depth set to maximum Time Base Single Channel Dual Channel 2 5 ns 50 ns 40 k 20 k 100 ns 50 ms 20k 20 k 3 16 Utility System Press the UTILITY button from the front panel to access utility options Table 3 50 Utility System Menu 1 Setting Description Displays summaries of the System Status oscilloscope settings Turn on sound Turn off sound Sound Turn on Frequency Counter Turn off Frequency Counter Count ounter
15. EA E SA 107 TEN E T SAE E A TET 108 Update Firmware ismernem e i a i a a aN 111 xii Pass Fall NEEE EE inde astee enn ee ueeler een ha teres 112 Waveform RECOM sic cccis ccesteatacceccdncces szccs cay RE ea aiee areata netaa Nean tona 117 Recorder Scan Mode Only ccssscccsssccceesssceceesseeecsssceceeseseceesaes 121 Help Menun a aia a a a a a iaae 124 4 Application Examples ccccccssssssseeeccccccsssssseececcccessseeeeeeseeees 125 4 1 Taking Simple Measurements ccccccccccecsessscecececsessstseeeeeeees 125 4 2 Taking Cursor Me asureMents ccccccccccecesssssceceescsessseseeeeeeees 126 4 3 Capturing a Single Shot Signal cccssscscccecessesseeeeeeeeseenees 128 4 4 Analyzing Signal Details 0 ccccccccccecsssscssceeeeeceesseaeeeeseeeeeeees 129 4 5 Triggering ON a Video Signal ccccccccccecssssssscecececsesseeseeeeeeees 130 4 6 Application of X Y Function cccccccccceceesssseseeececsessaeseeeeseseees 131 4 7 Analyzing a Differential Communication Signal c0008 133 5 Remote Controle sss 5 s ss00i0cesdenseshivesiaceddeeseceieesieceddeseceivesianedbeass 134 6 Message Prompts and Troubleshooting sssssssssssssssssssees 135 6 1 Message Prompt ccc0scssesesesseeseseseseseseeeseseseseseseseeeseeeeesens 135 6 2 TrOU DICSHOOTING sle Ere E E EENE h 136 Z SPOCiIICACIONS a see Soot e aa a oa aaa niaaa aria eaa 138 82 Calibration aa raara
16. Measurement Accuracy 3 x reading offset 1 x offset All Gain settings gt 0 2 div 100 mv 100 mV div Rise time lt 3 5 ns Overshoot Typical using 500 ps pulse lt 10 with probe or BNC input w 50 Q feed thru Math operation FFT FFT Window mode Hanning Hamming Blackman Rectangular Sampling points 1024 Bandwidth limited 20 MHz 40 Note Bandwidth limited below 20 MHz when using probe in x1 Horizontal System Real Time Sampling Rate 1 GSa s half channel interleaved 500 MSa s per channel Max Equivalent Sampling Rate 50 GSa s Measure Display Modes MAIN WINDOW WINDOW ZOOM ROLL X Y Timebase Accuracy 50 ppm measured over 1 ms interval Horizontal Scan Range 2 5 ns div 50 s div Scan Mode 100 ms div 50 s div 1 2 5 5 sequence Maximum Memory Length interleaved 40 000 points when timebase is 2 5 ns to 50 ns 20 000 points for 100 ns to 50 ms timebase and dual channel operation 139 More details can be found in the Save Recall CSV section Trigger System Trigger Types Edge Pulse Width Video Slope Alternative Trigger Source CH1 CH2 EXT EXT 5 AC Line Trigger Modes Auto Normal Single Trigger Coupling AC DC LF reject HF reject Trigger Level Range CH1 CH2 6 divisions from center of screen EXT 1 2 V EX
17. X FFF and the first falling edge of source Y 85 The time between the first rising edge of source 1 Sat LRR and the last rising edge of source 2 TLL The time between the first rising edge of source X LRF and the last falling edge of source Y Twi The time between the first falling edge of source X LFR and the last rising edge of source Y TA The time between the first falling edge of source X LFF and the last falling edge of source Y If you want to measure voltage parameters please follow the steps below 1 Press the MEASURE button to enter the Auto measurement menu Press the first option button to enter the second measurement menu Select measure type If you press the Voltage option button Voltage measurement menu will display on the screen Press the Source option button to select CH1 CH2 according to input signal channel Press the Type option button to select the parameter type that you want to measure The corresponding icon and value will display below the measure parameter 86 Figure 3 42 Measuring Vpp Parameters Press the Return option button to return to the home page of Auto Measurement menu The selected parameter and the corresponding value will display on the top position of the home page You can display the other parameters and their value on the corresponding position in the same way The s
18. a USB flash drive to the USB host port of the oscilloscope and wait until the oscilloscope has initialized the USB flash drive about five seconds 5 Press the Print Key option button to save the screenshot image to the USB flash drive 6 Alternatively you can customize the file name to save into by pressing the Save option 7 The SAVE ALL menu will display Select New File and enter the filename 99 8 Press the Confirm button within five seconds there will be a message Save data success displayed on the screen Now the screenshot image has been saved to the USB flash drive Save Recall CSV Table 3 49 CSV Storage Menu focal neal 8 Type CSV Menu for the Storage CSV file to USB flash drive Displayed Set to store displayed waveform data to CSV file Set to store maximum waveform data Maximum to CSV file Para Save Set whether to include waveform parameters in the CSV file or not m eee Go to the SAVE ALL interface 100 SAVE REC Data Depth Displayed Par Figure 3 53 Save to CSV Screen To save CSV files to USB flash drive follow the steps below 1 Press the SAVE RECALL button to enter SAVE RECALL menu Press the Type option button to select CSV Insert USB flash drive to USB host port of the oscilloscope and wait that the oscilloscope has initialized USB flash drive about five seconds Press the Data
19. channel 3 Turn the vertical POSITION knob and Volts div knob to adjust the vertical position and scale 4 Press the third option button to select REFA or REFB as storage position 5 Press the Save option button 6 Press the bottom option button to select REFA On or REFB On to recall the reference waveform NOTE X Y mode waveforms are not stored as reference waveforms You cannot adjust the horizontal position and scale of the reference waveform 3 10 Horizontal System Shown below are two knobs and one button in the HORIZONTAL area 40 Horizontal A Zoom HORI MENU Position D ns a gt lt A Zero Figure 3 19 Horizontal Controls Table 3 14 Horizontal System Function Menu Option Setting Description Delayed On Turn on this function for main timebase waveform to display on the top half screen and window timebase waveform to display on the below half screen at the same time Off Turn off this function to only display main timebase waveform on the screen Horizontal Control Knob You can use the horizontal controls to change the horizontal scale and position of waveforms The horizontal position readout shows the time represented by the center of the screen using the time of the trigger as zero Changing the horizontal scale causes the waveform to expand or contract around the screen center Horiz
20. component or offset can cause incorrect FFT waveform magnitude values To minimize the DC component choose AC Coupling on the source waveform To display FFT waveforms with a large dynamic range use the dBVrms scale The dBVrms scale displays component magnitudes using a log scale The Nyquist frequency is the highest frequency that any real time digitizing oscilloscope can acquire without aliasing This frequency is half that of the sample rate provided it is within the analog bandwidth of the oscilloscope Frequencies above the Nyquist frequency will be undersampled which causes aliasing 38 3 9 Using REF The reference control saves waveforms to a nonvolatile waveform memory The reference function becomes available after a waveform has been saved Table 3 13 REF Function Menu Option Setting Description CH1 CH2 Choose the waveform display to store Source CH1 off CH2 off REFA Choose the reference location to store or recall a waveform REFB Stores source waveform to the Save i chosen reference location Recall the reference waveform on REFA on the screen REFB off Turn off the reference waveform Press the Ref button to display the Reference waveform menu 39 REF A REF A On Figure 3 18 Reference Waveform Menu Operation step 1 Press the REF menu button to display the Reference waveform menu 2 Press the Source option button to select input signal
21. e In relative humidity conditions outside the instrument s specifications e In environments where there is a danger of any liquid being spilled on the instrument or where any liquid can condense on the instrument e In air temperatures exceeding the specified operating temperatures e In atmospheric pressures outside the specified altitude limits or where the surrounding gas is not air e In environments with restricted cooling air flow even if the air temperatures are within specifications e Indirect sunlight This instrument is intended to be used in an indoor pollution degree 2 environment The operating temperature range is 0 C to 40 C and the operating humidity is lt 85 relative humidity at 40 C with no condensation allowed Measurements made by this instrument may be outside specifications if the instrument is used in non office type environments Such environments may include rapid temperature or humidity changes sunlight vibration and or mechanical shocks acoustic noise electrical noise strong electric fields or strong magnetic fields Do not operate instrument if damaged If the instrument is damaged appears to be damaged or if any liquid chemical or other material gets on or inside the instrument remove the instrument s power cord remove the instrument from service label it as not to be operated and return the instrument to B amp K Precision for repair iv Notify B amp K Precision of the nature
22. factory settings to save waveform data as a comma delimited file CSV and to save the displayed waveform image ACQUIRE Press to display Acquire menu You can use the Acquire menu to set the acquisition Sampling Mode Sampling Peak Detect and Average MEASURE Press to display a menu of measurement parameters CURSORS Display the Cursor Menu Vertical Position controls adjust cursor position while displaying the Cursor Menu and the cursors are activated Cursors remain displayed unless the Type option is set to Off after leaving the Cursor Menu but are not adjustable DISPLAY Press to open the Display menu You can use the Display menu to set grid and waveform display styles and persistence UTILITY Press to open the Utility menu You can use the Utility menu to configure oscilloscope features such as 15 sound language counter etc You can also view system status and update software DEFAULT SETUP Press to reset the oscilloscope s settings to the default factory configuration HELP Enter the online help system AUTO Automatically sets the oscilloscope controls to produce a usable display of the input signals RUN STOP Continuously acquires waveforms or stops the acquisition Note If waveform acquisition is stopped using the RUN STOP or SINGLE button the TIME DIV control expands or compresses the waveform SINGLE Acquire a single waveform and then stops waveform acquisition 3 2 Connect
23. found and no channels displayed oscilloscope displays and uses channel 1 Table 3 2 Auto Set Function Menu Items Acquire Mode Adjusted to Sampling Display Type Set to Dots for a video signal set to Vectors for an FFT spectrum otherwise unchanged Vertical Coupling Adjusted to DC or AC according to the input signal Bandwidth Limit Off full 18 Signal inverted Off Time div Adjusted Trigger source Auto detect the channel which has the input signal NOTE The AUTO button can be disabled Please see Appendix C Disabling Auto Function for details 3 4 Default Setup The oscilloscope is set up for normal operation when it is shipped from the factory This is the default setup To recall this setup press the DEFAULT SETUP button For the default options buttons and controls when you press the DEFAULT SETUP button refer to Appendix A Default Setup The DEFAULT SETUP button does not reset the following settings e Language option e Saved reference waveform files e Saved setup files e Display contrast 19 e Calibration data 3 5 Universal Knob Figure 3 4 Universal Knob You can use the Universal knob with many functions such as adjusting the hold off time moving cursors setting the pulse width setting the video line adjusting the upper and lower frequency limit adjusting the X and Y masks when using the pass fail function etc You can also turn the Universal knob to a
24. of any contamination of the instrument Clean the instrument only as instructed Do not clean the instrument its switches or its terminals with contact cleaners abrasives lubricants solvents acids bases or other such chemicals Clean the instrument only with a clean dry lint free cloth or as instructed in this manual Not for critical applications This instrument is not authorized for use in contact with the human body or for use as a component in a life support device or system Do not touch live circuits Instrument covers must not be removed by operating personnel Component replacement and internal adjustments must be made by qualified service trained maintenance personnel who are aware of the hazards involved when the instrument s covers and shields are removed Under certain conditions even with the power cord removed dangerous voltages may exist when the covers are removed To avoid injuries always disconnect the power cord from the instrument disconnect all other connections for example test leads computer interface cables etc discharge all circuits and verify there are no hazardous voltages present on any conductors by measurements with a properly operating voltage sensing device before touching any internal parts Verify the voltage sensing device is working properly before and after making the measurements by testing with known operating voltage sources and test for both DC and AC voltages Do not attempt any
25. press the Source option button to select CH1 CH2 EXT EXT 5 or AC Line 3 Set up Slope n u e Press the Slope option button to select Tror th 4 Set up Trigger mode e Press the Trigger mode option button to select Auto Normal Single Auto The waveform refreshes at a high speed whether the trigger condition is satisfied or not 47 Normal The waveform refreshes when the trigger condition is satisfied and waits for next trigger event occurring when the trigger condition is not satisfied Single The oscilloscope acquires a waveform when the trigger condition is satisfied and then stops 5 Set up Trigger coupling e Press the Set Up button to enter the Trigger Setup Menu e Press the Coupling option button to select DC AC HF Reject or LF Reject Pulse Trigger Use Pulse Width triggering to trigger on aberrant pulses Table 3 17 Pulse Trigger Function Menu 1 Description Select the pulse to trigger the pulse match the trigger condition CH1 Select input signal CH2 source Source EXT EXT 5 AC Line 48 ak Positive pulse width less than pulse width setting _F Positive pulse width larger than pulse width setting FL Positive pulse width equal to pulse width setting Negative pulse width less than pulse width setting IS Negative pulse width larger than pulse width setting M Neg
26. probe to the oscilloscope and connect the ground terminal to ground before you take any measurements 10 Probe Attenuation Probes are available with various attenuation factors which affect the vertical scale of the signal The Probe Check function verifies that the Probe attenuation option matches the attenuation of the probe You can push a vertical menu button such as the CH 1 MENU button and select the Probe option that matches the attenuation factor of your probe NOTE The default setting for the Probe option is 1X Be sure that the attenuation switch on the probe matches the Probe option in the oscilloscope Switch settings are 1X and 10X NOTE When the attenuation switch is set to 1X the probe limits the bandwidth of the oscilloscope to 6 MHz according to Probe spec To use the full bandwidth of the oscilloscope be sure to set the switch to 10X Probe Compensation As an alternative method to Probe Check you can manually perform this adjustment to match your probe to the input channel 11 CO co Cy Co om Co Figure 2 6 Probe Compensation Setup 1 Set the Probe option attenuation in the channel menu to 10X Do so by pressing CH1 button and selecting Probe from menu Select 10X Set the switch to 10X on the probe and connect the probe to channel 1 on the oscilloscope If you use the probe hook tip ensure a proper connection by firmly inserting the tip onto
27. second page of MATH menu Table 3 8 Math Function Menu 2 Function Setting Description Use universal knob to adjust the 4 ANa a s vertical position of the MATH waveform Use universal knob to adjust the 4 NLV vertical scale of the MATH waveform Next Page Page 2 2 Go back to first page of MATH menu 31 Table 3 9 Math Function Description Operation Setting Description Source A waveform adds Source B A B waveform 7 AB Source B waveform is subtracted from Source A waveform A B Source A multiplied by Source B A B Source A divided by Source B FFT Fast Fourier Transform Slope Ar Mode Auto Set Up Figure 3 15 Math Waveform FFT Spectrum Analyzer The FFT process mathematically converts a time domain signal into its frequency components You can use the Math FFT mode to view the following types of signals e Analyze the harmonic wave in the Power cable 32 e Testthe harmonic content and distortion in the system e Show the Noise in the DC Power supply e Test the filter and pulse response in the system e Analyze vibration Table 3 10 FFT Function Menu 1 CH1 CH2 Select this channel as the FFT source Hanning Select FFT window types Hamming Window Rectangular Blackman 1X Changes the horizontal ay magnification of the FFT display FFT ZOOM 5X 10X Enter the second page of FFT menu Table 3 11 FFT Function Menu 2
28. see a section of the waveform in details follow these steps 1 Press the HORI MENU button to enter the Horizontal menu 2 Turn the Time div knob to change the main timebase scale 3 Press the Delayed option button to select On 42 Figure 3 20 Horizontal Delay Menu 4 Turn the Horizontal Position knob adjust window s position to select the window that your need and expanded window waveform display on the below half screen at the same time 3 11 Trigger System The trigger determines when the oscilloscope starts to acquire data and display a waveform When a trigger is set up properly the oscilloscope converts unstable displays or blank screens into meaningful waveforms Here are three buttons and one knob in the trigger area See below 43 Figure 3 21 Trigger Controls TRIG MENU Button Press the TRIG MENU Button to display the Trigger Menu LEVEL Knob The LEVEL knob is to set the corresponding signal voltage of trigger point in order to sample Press the LEVEL knob to set trigger level to zero SET TO 50 Button Use the SET TO 50 button to stabilize a waveform quickly The oscilloscope can set the Trigger Level to be about halfway between the minimum and maximum voltage levels automatically This is useful when you connect a signal to the EXT TRIG BNC and set the trigger source to Ext or Ext 5 FORCE Button Use the FORCE b
29. service or adjustment unless another person capable of rendering first aid and resuscitation is present Do not insert any object into an instrument s ventilation openings or other openings Hazardous voltages may be present in unexpected locations in circuitry being tested when a fault condition in the circuit exists Servicing Do not substitute parts that are not approved by B amp K Precision or modify this instrument Return the instrument to B amp K Precision for service and repair to ensure that safety and performance features are maintained Cooling fans This instrument contains one or more cooling fans For continued safe operation of the instrument the air inlet and exhaust openings for these fans must not be blocked nor must accumulated dust or other debris be allowed to reduce air flow Maintain at least 25 mm clearance around the sides of the instrument that contain air inlet and exhaust ports If mounted in a rack position power devices in the rack above the instrument to minimize instrument heating while rack mounted Do not continue to operate the instrument if you cannot verify the fan is operating note some fans may have intermittent duty cycles Do not insert any object into the fan s inlet or outlet vi For continued safe use of the instrument e Do not place heavy objects on the instrument e Do not obstruct cooling air flow to the instrument e Do not place a hot soldering iron on the instrument e Do not
30. the display to turn green if it is functioning normally To exit the test at any time Press RUN STOP key three times to exit as indicated at the bottom of the screen 109 ey three tim Figure 3 62 Key Test Screen LED Test Select LED Test to test the LED backlights on some of the front panel buttons The screen will display key shapes that represent all the buttons of the front panel Follow the instruction prompt below and Press SINGLE Key to continue Press RUN STOP Key to exit Each time SINGLE key is pressed a key shape on the screen will turn green indicating that the corresponding key or indicator should be lid up Press SINGLE again to test another key backlight Once all the individual backlit keys are tested all of them will turn on simultaneously Pressing SINGLE key again will restart all over To Exit the test press RUN STOP key 110 ont inue P Figure 3 63 LED Test Screen Update Firmware The firmware of the oscilloscope can be updated directly via a USB Flash drive This process takes about two minutes To update follow the steps below 1 2 p Download and save the firmware file onto a USB flash drive Insert the USB Flash Drive to the USB Host interface on the front panel of the oscilloscope Press the UTILITY button to enter the Utility menu Press the Next Page option button to enter the third page of the
31. the probe 2 Attach the probe tip to the PROBE COMP 3V connector and the reference lead to the PROBE COMP Ground connector Display the channel and then push the AUTO button 3 Check the shape of the displayed waveform Overcompensated Compensated Correctly Undercompensated Figure 2 7 Compensation Illustration 4 If necessary adjust your probe s compensation trimmer pot Repeat as necessary 12 3 Functions and Operating Descriptions To use your oscilloscope effectively you need to learn about the following oscilloscope functions Menu and control button Connector Auto Setup Default Setup Universal knob Vertical System Channel Function Menu Math Functions Using REF Horizontal System Trigger System e Acquiring signals System Display System Measuring waveforms System Utility System Storage System Online Help function 13 3 1 Menu and Control Button Measure Waveform SAVE DEFAULT RECALL SETUP l UTILITY HELP Horizontal ns HORI MENU Position CURSORS y MEASURE Vertical ACQUIRE DISPLAY d Select v j V x Y Q mamn 2 CH1 CH2 Position REF Position Tri igge TRIG menu SET TO 50 f l FORCE Leve ER Figure 3 1 Control Buttons Channel buttons CH1 CH2 Press a channel button to turn that channel ON or OFF a
32. 2190D Free 1 70 GB 6 BK00000ICSY Next Page Page 12 Figure 3 44 Save All Menu Directory While file shows option buttons for New File Delete File and Load SAVE ALL Modify New File Del File Next Page Page 12 Choose a folder Figure 3 45 Save All Menu Files 89 Recalling Files The Load button is used to recall your setup files Once you ve navigated to the desired file and it s highlighted in the main screen area press the Load option button and the setup is recalled from the USB flash drive NOTE The Load button option is disabled grayed out when BMP or CSV file types are selected Both Directory and Files have Rename and Return option buttons on Page 2 2 Use these buttons to give an existing folder of file a new name or to exit the SAVE ALL screen respectively Creating Folders and Files Create new folders and files by pressing the New Dir or New File option button The following screen is shown Hew Folder InputChar Figure 3 46 Rename Menu e The New File menu options are the same as the New Folder menu The InputChar option button adds the selected character to the cursor position in Name field e Move the cursor position in the name field using the gt and option buttons 90 e Turn the Universal knob to move through character selections When the desired character is highlighted press the Universal
33. A option button to select the input signal channel Press the Cursor B option button to select the input signal channel Select Cur A turn the Universal knob to move Cursor A horizontally Select Cur B turn the Universal knob to move Cursor B horizontally The measurement values are displayed on the top left of the screen AT The horizontal position of Cursor A Time cursor centered around the midpoint of screen 78 Auto Mode AV The Vertical position of Cursor A Voltage cursor centered around channel ground level BT The horizontal position of Cursor B Time cursor centered around the midpoint of screen B V The Vertical position of Cursor B Voltage cursor centered around channel ground level AT Horizontal space between Cursor A and Cursor B Time value between two cursors 1 AT The reciprocal of horizontal space between cursor A and cursor B AV Vertical space between Cursor A and Cursor B Voltage value between two cursors Figure 3 39 Cursor Menu Track This mode will take effect with automatic measurements The instruments will display cursors while measuring parameters automatically These cursors demonstrate the physical meanings of these measurements 79 To do auto cursor measurements follow these steps 1 Press the CURSOR button to enter Cursor measure menu 2 Press the Cursor Mode option button to select Auto 3 Press the
34. BK PRECISION Model 2190D 100 MHz Digital Storage Oscilloscope USER MANUAL 5 E Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be followed during all phases of operation service and repair of this instrument Before applying power to this instrument e Read and understand the safety and operational information in this manual e Apply all the listed safety precautions e Verify that the voltage selector at the line power cord input is set to the correct line voltage Operating the instrument at an incorrect line voltage will void the warranty e Make all connections to the instrument before applying power e Do not operate the instrument in ways not specified by this manual or by B amp K Precision Failure to comply with these precautions or with warnings elsewhere in this manual violates the safety standards of design manufacture and intended use of the instrument B amp K Precision assumes no liability for a customer s failure to comply with these requirements Category rating The IEC 61010 standard defines safety category ratings that specify the amount of electrical energy available and the voltage impulses that may occur on electrical conductors associated with these category ratings The category rating is a Roman numeral of I Il I or IV This rating is also accompanied by a maximum voltage of the circuit to be tested which defines t
35. E A AE E A A E EEA 39 3 10 Horizontal System cccccecccccccessesssseeeeececseseeaeeeeeeeceesesaeeeeeesens 40 Horizontal Control KNOD cccecessseceeseececeeseececeeneeceeseeeeceenaeeeseeneeees 41 Window Zone eaea n a aa dees Lec e aari EEE EE OAE a aea 42 3 11 Trigger Syste oe a a a a a es 43 SIBMAl SOURCE A A EAT 44 Trigger Type cinn ne a iee ai a i n EE aoina at 45 COUPE nessun a e e e e a 63 POSIGION EEEE A E E T E A N 63 Slope and Level risann enen e a a a ea iaae taa 63 Trigger HOI OF ise ed sented aa ri E aude eaea aiies 64 3 12 Signal Acquisition System sesssssesseesssssssrerserrsssesrrersessesreeeeess 65 3 13 Display SYST M a eere E E E E aiaee 70 AMV FORM Ate E E E E N tidestevedeeseesoss 74 3 14 Meas re Syste ssena er orein ope E E 75 Scale M aSUEMENL ccceceeccecesseececeeseececeeeeecesseeeceeueeeceeaaeeeseeeteceees 75 Cursor Measurement sssssesssssssssessssrssssrreersssesererrsssestetesesrssreeeeeneesee 75 3 15 gt Storage Syste Mrserer a eas iee teh E a tnd Ra e eencduennes 88 Recallitig AES a a EE E A ER 90 Creating Folders and Files cccccsessssccccecsesssseceeececessesseaeeeeeceseeeea 90 Save ReGall Set Pnczren n e a e a ea 91 Save Recall Waveform s s essssssseseesesressorrssossesssressuressoseeresressssssesstress 95 e H STEES O i a N aV Ea E E E E A 102 System Stat Seinni aeea Naaa a a a L Naaa e Neie 106 language onene iien aeia E a aiie E aiin i e aia 107 SEEI EAIN A
36. NE YEAR WARRANTY B amp K Precision Corp warrants to the original purchaser that its products and the component parts thereof will be free from defects in workmanship and materials for a period of one year from date of purchase B amp K Precision Corp will without charge repair or replace at its option defective product or component parts Returned product must be accompanied by proof of the purchase date in the form of a sales receipt To help us better serve you please complete the warranty registration for your new instrument via our website www bkprecision com Exclusions This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs The warranty is void if the serial number is altered defaced or removed B amp K Precision Corp shall not be liable for any consequential damages including without limitation damages resulting from loss of use Some states do not allow limitations of incidental or consequential damages So the above limitation or exclusion may not apply to you This warranty gives you specific rights and you may have other rights which vary from state to state B amp K Precision Corp 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 714 921 9095 BK PRECISION 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 2014 B amp K Precision Corp v080114
37. Page 1 2 i nee alternative trigger Table 3 30 Alternate Trigger Slope Mode Function Menu 2 opon Satng Denton Select slope trigger condition Time 4 Turn the Universal knob to set the lt Set time gt slope time Time setup range is 20ns 10s Vertical Select the trigger level that can be adjusted by LEVEL knob You can adjust LEVEL A LEVEL B or adjust 61 po them at the same time Set up Enter Trigger setup menu See Table Next Page Page 2 2 Return to the first page of Alternative Operating Instructions To use alternate triggering follow these steps 1 Input two irrelative signals to channel 1 and channel 2 Press the AUTO button Press the TRIG MENU button to enter trigger menu Press the Type option button to select Alternative Press the Channels option button to select CH1 CH2 Press the Source option button to select CH1 pe Ok Os fae W aN Press the CH1 button and turn the Time div knob to optimize waveform display 8 Press Mode option button to select Edge Pulse Slope or Video 9 Set the trigger according to trigger edge 10 Press the Source option button to select CH2 11 Press the CH2 button and turn the Time div knob to optimize waveform display 12 Repeat steps 8 and 9 62 Coupling Use Coupling to make sure the signal passes th
38. Set Vrms to be the Vertical Scale Vrms nit unit Set dBVrms to be the vertical 33 E i Display FFT waveform on half Split screen Display Full screen Display FFT waveform on full screen Return to the first page of FFT menu Next Page Page 2 2 To use the Math FFT mode you need to perform the following steps 1 Set up the source time domain waveform Press the AUTO button to display an YT waveform 3 Turn the vertical POSITION knob to move the YT waveform to the center vertically zero divisions 4 Turn the horizontal POSITION knob to position the part of the YT waveform that you want to analyze in the center eight divisions of the screen The oscilloscope calculates the FFT spectrum using the center 1024 points of the time domain waveform 5 Turn the Volts div knob to ensure that the entire waveform remains on the screen 6 Turn the S div knob to provide the resolution you want in the FFT spectrum 7 If possible set the oscilloscope to display many signal cycles ed To display FFT correctly follow these steps 1 Push the MATH button Set the Operation option to FFT 3 Press the Source button to select CH1 or CH2 according to input signal channel 4 Turn the Time div knob to adjust the sampling rate this parameter is displayed behind the time base parameter making sure it is at least double the input signal frequen
39. T 5 6 V Trigger Displacement Pre trigger Memory depth 2 sampling Delay Trigger 271 04 div Trigger Level Accuracy typical applicable for the signal of rising and falling Internal 0 2 div x V div within 4 divisions from center of screen EXT 6 of setting 40 mV EXT 5 6 of setting 200 mV time 220 ns For fixed gain ranges 1 Divisions DC 10 MHz 1 5 Divisions 10 MHz max bandwidth Trigger Sensitivity EXT 200 mVpp DC 10 MHz 300 mVpp 10 MHz max bandwidth EXT 5 1 Vpp DC 10 MHz 1 5 Vpp 10 MHz max bandwidth Pulse Width Trigger Trigger Modes gt lt Pulse Width gt lt Pulse Width Pulse Width Range 20 ns 10s Video Trigger Support signal formats PAL SECAM NTSC Slope Trigger gt lt Positive slope gt lt Negative slope Time 20 ns 105s Alternative Trigger CH1 trigger type Edge Pulse Video Slope CH2 trigger type Edge Pulse Video Slope 140 X Y Mode X Pole Input Y Pole Input Channel 1 CH1 Channel 2 CH2 Phase Error 3 degrees Hardware Frequency Counter Reading resolution 1 Hz Range DC Couple 10 Hz to MAX Bandwidth Signal Types All trigger signals except pulse width trigger and video trigger Control Panel Function Auto Set Auto adjusting the Vertical Horizontal system and Trigger Pos
40. Volts Div at limit Prompts you that the vertical voltage has already reached the Min 2mV div or the Max 5V div e Volts position at limit The system would display this information when the vertical position is at a limit e Sec Div at limit Prompts that the Time Div is at full range while turning the horizontal scale knob e Holdoff time at limit Prompts you that the holdoff time setting has reached max or min value e Function isn t useable Under several special modes some functions could not be running e No signal The system would display this information when the signal could not match the auto set condition while using the auto set function e Adjust at limit Prompts that the pulse width setting has reached min 20 0 ns or max 10 0 s e Location Empty If you have no stored waveforms or setups at specified location the screen will display this information when you press the Recall button on this location e USB Flash Drive Plug In This information will appear when you insert the USB Flash Drive to the USB Host port e USB Flash Drive Pull Out This information will appear when you pull out the USB Flash Drive from the USB Host port e Store Data Success Saving setup data waveform data or picture data to the internal memory of the oscilloscope or USB flash was successful e Read Data Success Read setup data or waveform data from the internal memory of the oscilloscope or USB flash was success
41. a e sar aeaa eases E eiss 142 SERVICE INFORMATION ccccssssscccsssscccsssscccsssscccessssccessscesessscssessseess 143 LIMITED ONE YEAR WARRANTY s ccssssssccssssccccsssccccssssessessseccsssessoes 144 xiii 1 General Information 1 1 Product Overview The B amp K Precision 2190D digital storage oscilloscope DSO is a portable benchtop instrument used for making measurements of signals and waveforms The oscilloscope s bandwidth is capable of capturing up to 100 MHz signals with a real time sampling rate of up to 1 GSa s With up to 40k points of deep memory it allows for capturing more details of a signal for analysis and displayed on the large color LCD display Features e 2Channels Bandwidth 100 MHz e Single channel real time sampling rate of up to 1GSa s e Upto 40k points of memory depth e 7 Color TFT LCD display e Trigger types Edge Pulse Video Slope and Alternative e Unique Digital Filter function and Waveform recorder function e Auto measure 32 parameters Voltage and Time e Standard interface USB Host USB Device RS 232 Pass Fail Out 1 2 Package Contents Please inspect the instrument mechanically and electrically upon receiving it Unpack all items from the shipping carton and check for any obvious signs of physical damage that may have occurred during transportation Report any damage to the shipping agent immediately Save the original packing carton for possible future reshipment Every in
42. ad data success Now the setup data have been recalled from the USB flash drive 94 Recall Factory You can use this option to recall the factory settings Table 3 45 Factory Function Menu sene oeseri To view the Factory setup Clears all memory including Depth Recover setups waveforms and masks Update cfg Update the config file Recall the Factory setup SAVE REC Update Cfg Figure 3 49 Set Factory Default Settings Save Recall Waveform Save Waveforms to Device Table 3 46 Save Waveform to Device Menu Selects Waveform for Type Waveforms i saving recalling 95 Save waveforms to the oscilloscope s internal memory Press the waveform option Waveform No 1 to No 20 button or turn the Universal knob to select storage location Save waveform to the selected Save storage location Recall the Waveform from Recall the selected storage location in Waveform option Save to Device Figure 3 50 Save Waveform Screen To Internal Storage To save waveforms in internal memory follow the steps below 1 Input a sine signal to channel 1 and press the Auto button 2 Press the SAVE RECALL button to enter SAVE RECALL display menu 3 Press the Type option button to select Waveforms 4 Press the Save to option button to select Device 5 Press the Waveform option button or turn the Universal
43. ain menu of mask Return setting Return to the first page of Mask Last Page Page 2 2 pag Setting menu 115 MASK Load Next Page z Page 2 2 Figure 3 67 Mask Menu Screen 2 RUN Pass Fail test please follow next page 1 2 3 y 10 11 12 Press UTILITY button to enter the Utility menu Press the Next Page Page 1 4 option button Press the Next Page Page 2 4 option button to enter the third page of Utility menu Press the Pass Fail option button to enter the Pass Fail function menu Press the Enable Test option button to select On Press the Source option button to select input signal channel Press the Next Page Page 1 2 option button to enter the second page of the Pass Fail menu Press the Mask Setting option button to enter the first page of Mask menu Press the X Mask button turn the Universal knob to adjust the horizontal clearance Press the Y Mask button turn the Universal knob to adjust the vertical clearance Press the Create Mask button to create mask and you also can enter the next page of Mask menu to recall the stored mask Enter the second page of Pass Fail function menu press the Output option button to set the output option 116 13 Enter the first page of Pass Fail function menu press the Operate
44. arranty Service Please go to the support and service section on our website at www bkprecision com to obtain a RMA Return the product in the original packaging with proof of purchase to the address below Clearly state on the RMA the performance problem and return any leads probes connectors and accessories that you are using with the device Non Warranty Service Please go to the support and service section on our website at www bkprecision com to obtain a RMA Return the product in the original packaging to the address below Clearly state on the RMA the performance problem and return any leads probes connectors and accessories that you are using with the device Customers not on an open account must include payment in the form of a money order or credit card For the most current repair charges please refer to the service and support section on our website Return all merchandise to B amp K Precision Corp with prepaid shipping The flat rate repair charge for Non Warranty Service does not include return shipping Return shipping to locations in North America is included for Warranty Service For overnight shipments and non North American shipping fees please contact B amp K Precision Corp B amp K Precision Corp 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 714 921 9095 Include with the returned instrument your complete return shipping address contact name phone number and description of problem LIMITED O
45. ash drive 1 2 ae 6D 00 lOO Press the SAVE RECALL button to select Setups Insert USB flash drive to USB host port of the oscilloscope and wait that the oscilloscope has initialized USB flash drive about five seconds Press the Save to option button to select file Press the Save option button then you ll go into the Save Recall interface Press the New Dir button to create a new folder Press the Del folder option button to delete a folder Press the New file option button to create a new file Press the Del file option button to delete a file Press the next page option button and press the Rename option button to modify the name of the file or the folder 10 Turn the Universal knob to select the folder and press the Confirm option button and you save the set to the USB drive To Recall setup data from USB flash drive follow the steps below 1 2 3 Press the SAVE RECALL button Press the Type button to select Setups Insert USB flash drive to USB host port of the oscilloscope and wait that the oscilloscope has initialized USB flash drive about five seconds Press the Save to option button to select File Press the Save option button then you ll go into the Save Recall interface Choose the file you want then press the Load option button within 5 seconds there will be a message Re
46. ative pulse width equal to pulse width setting Select how to compare the trigger pulse relative to the value selected in the Set Pulse Width option Selecting this option can turn the universal to set up the pulse width Press this button to enter the second page Set Width 20 0ns 10 0s 1 When Ea Set Width Figure 3 23 Pulse Trigger Menu 1 49 Table 3 18 Pulse Trigger Function Menu 2 Se a T Bal Select the pulse to trigger the pulse ype mee match the trigger condition Auto Select the type of triggering Normal Mode Normal mode is best for most Pulse Width single trigger applications Set up Enter the Trigger setup menu Press this button to return to the first Next Page Page 2 2 nage Pu Mode Auto Set Up Next Page Page 2 2 M 16 4ps M Figure 3 24 Pulse Trigger Menu 2 Operating Instructions 1 Setup Type e Press the TRIG MENU button to display Trigger menu e Press the Type option button to select Pulse 2 Setup condition e Press the When option button to select ke PL va PL Fe by oe bY 50 3 Setup pulse width Turn the Universal knob to set up width Video Trigger Trigger on fields or lines of standard video signals Table 3 19 Video Trigger Function Menu 1 Option Setting Description When you select the video type
47. aveform To do so follow these steps i Remove the channel 1 and channel 2 waveforms from the display ii Turn the CH 1 and CH 2 VOLTS DIV and VERTICAL POSITION knobs to adjust the vertical scale and position NOTE First be sure to compensate both probes Differences in probe compensation appear as errors in the differential signal 133 5 Remote Control The 2190D series digital storage oscilloscope can be remotely controlled by PC software application or user command programming The 2190D comes with EasyScopexX application software which provides most of the controls that emulate the front panel of the instrument The rear panel USB device port is used to connect to a computer to allow for remote communication with the software The EasyScopexX software is free and can be downloaded at www bkprecision com Users can also control the oscilloscope by programming through standard SCPI Standard Commands for Programmable Instruments commands Remote communication commands are supported via the USB device interface and the RS232 interface Refer to the programming manual available for download at www bkprecision com 134 6 Message Prompts and Troubleshooting 6 1 Message Prompts e Trig level at limit Prompts you that the trigger Level is at a limit when you turn the Trig level knob e Horizon position at limit Prompts you that the horizontal position is at a limit when you turn the horizontal position knob e
48. creen can display five parameters at one time If you want to measure time parameters using all measure function please follow these steps 1 2 B Press the MEASURE button to enter the Auto Measure menu Press the top option button to enter the second page of Auto Measure menu Press All Mea option button to enter the All Measure menu Press Source option button to select input signal channel Press the Time option button to select On Now all of the time parameters value will display on the screen at the same time as shown below 87 MEASURE Source Figure 3 43 Measuring All Time Parameters 3 15 Storage System As shown below the SAVE RECALL button enters the Storage System Function Menu The oscilloscope can save and recall up to 20 instrument settings and 10 waveforms in internal memory There is a USB Host interface on the front panel of the oscilloscope where you can save setup data waveform data waveform display image and CSV file to a USB flash drive Setup data and waveform data that are saved to a USB flash drive can be recalled on the oscilloscope For picture data and CSV file a computer must be used to view them e Using SAVE RECALL Screen The SAVE ALL screen is divided into functions based on Directory or Files Directory shows option buttons for New Directory Delete Folder and Load 88 SAVE ALL Modity Del Folder AJ
49. ct Average Averages 4 16 32 64 128 256 Detect the noise and decrease the possibility of aliasing Use to reduce random or uncorrelated noise in the signal display Select number of averages Sinx x Use sin interpolation Use linear interpolation Equ time Real time Set the Sampling mode to Equivalent time Set the Sampling mode to Real time Displays system sampling rate When you acquire a signal the oscilloscope converts it into digital form and displays a waveform The acquisition mode defines how the signal is digitized and the time base setting affects the time span and level of detail in the acquisition Sampling In this acquisition mode the oscilloscope samples the signal in evenly spaced intervals to construct the waveform This mode accurately represents signals most of the time Advantage You can use this mode to reduce random noise Disadvantage This mode does not acquire rapid variations in the signal that may occur between samples This can result in aliasing may cause narrow pulses to be missed In these cases you should use the Peak Detect mode to acquire data 66 Sampling Sirk Sinx Mode ate e Peak Detect Peak Detect mode capture the maximum and minimum values of a signal Finds highest and lowest record points over many acquisitions Advantage In this way the oscilloscope can acquire and display narrow pulses which may have otherwise been missed in Sa
50. cy to avoid aliasing according to Nyquist s theorem i 34 Displaying the FFT Spectrum Press the MATH button to display the Math Menu Use the options to select the Source channel Window algorithm and FFT Zoom factor You can display only one FFT spectrum at a time You can select Full screen or Split in Display option to display FFT waveform on full screen or display channel waveform and its FFT waveform on half screen at a time Center Frq 1 66MHz Select FFT window Windows reduce spectral leakage in the FFT spectrum The FFT assumes that the YT waveform repeats forever With an integral number of cycles the YT waveform starts and ends at the me amplitude and there are no discontinuities in the signal shape A non integral number of cycles in the YT waveform causes the signal start and end points to be at different amplitudes The transitions between the start and end points cause discontinuities in the signal that introduce high frequency transients Table 3 12 FFT Window Description Window Characteristics Applications Best frequency Symmetric transients resolution worst or bursts Equal Rectangular i magnitude resolution amplitude sine waves This is essentially the with fixed frequencies 35 same as no window Broadband random noise with a relatively slowly varying spectrum Better frequency poorer magnitude Sine periodic and accuracy than
51. detail e Triggering on a video signal e Application of X Y function e Analyzing a differential communication signal using math functions 4 1 Taking Simple Measurements Observe an unknown signal in a circuit display the signal quickly and measure the frequency and peak to peak amplitude e Using Auto set To quickly display a signal follow these steps 1 Press the CH1 button set the Probe option attenuation to 10X and set the switch to 10X on the probe 2 Connect the channel 1 probe to the signal Press the AUTO button 4 The oscilloscope sets vertical horizontal and trigger controls automatically If you want to optimize the display of the waveform you can adjust these controls manually w NOTE The oscilloscope displays relevant automatic measurements in the waveform area of the screen based on the signal type detected 125 Taking Automatic Measurements The oscilloscope can take automatic measurements of most displayed signals To measure signal frequency and peak to peak amplitude follow these steps Measure signal frequency 1 2 3 7 Input the signal to channel 1 Press the AUTO button Press the MEASURE button to see Auto Measure Menu Press the top option button Press the Time option button to enter the Time Measure menu Press the Source option button to select input signal channel Press the Type option button to select Freq Th
52. djust the storage position of setups waveforms pictures when saving recalling and to select menu options With some functions the light indicator above the knob will turn on to indicate that the knob can be used to make changes or adjustments for that function The knob can also be pushed to make a selection after changes adjustments have been made 20 3 6 Vertical System The vertical control could be used for displaying waveform rectify scale and position Vertical if mV lt gt MATH Vernier Vernier CH1 CH2 Position Position Figure 3 5 Vertical System Controls Using Vertical Position Knob and Volts div Knob e Vertical POSITION Knob 1 Use the Vertical POSITION knobs to move the channel waveforms up or down on the screen This button s resolution varies as per the vertical scale 2 When you adjust the vertical position of channels waveforms the vertical position information will display on the bottom left of the screen For example Volts Pos 24 6mvV 3 Press the vertical POSITION knob to set the vertical position to zero e Volts div Knob 1 Use the Volts div knobs to control how the oscilloscope amplifies or attenuates the source signal of 21 3 7 channel waveforms When you turn the volts div knob the oscilloscope increases or decreases the vertical size of the waveform on the screen with respect to the ground leve
53. e 26 e Press CH1 3 BW Limit gt On and bandwidth will be limited to 20 MHz e Press CH1 3 BW Limit gt Off and bandwidth limit will be disabled EVV Limit Yolts Div Coarse Next Page Page 13 Figure 3 9 Bandwidth Limit 3 Volts Div Settings Vertical scale adjust have Coarse and Fine modes Vertical sensitivity range of 2 mV div 10 V div Take CH1 for example e Press CH1 gt Volts Div gt Coarse It is the default setting of Volts Div and makes the vertical scaling in a 1 2 5 step sequence from 2 mV div 5 mV div 10 mV div to 10 V div e Press CH1 gt Volts Div gt Fine This setting changes the vertical control to small steps between the coarse settings It will be helpful when you need to adjust the waveform vertical size in smaller steps 27 Coupling DC B Limit vots Di Probe X Next Page Figure 3 10 Coarse Fine Control 4 Setting Probe Attenuation In order to set the attenuation coefficient you need to specify it in the channel operation Menu If the attenuation coefficient is 10 1 the input coefficient should be set to 10X so that the Volts div information and measurement testing is correct Take CH1 for example when you use the 100 1 probe e Press CH1 Probe gt 100X Coupling DC Bu Limit vots Di Figure 3 11 Probe Attenuation Setting 28 5 Inverting Waveforms
54. e corresponding icon and measure value will display on the third option area Measure signal frequency T 4 5 Press the MEASURE button to display Auto Measure Menu Press the top second option button Press the Voltage option button to enter the Voltage measure menu Press the Source option button to select input signal channel Press the Type option button to select Vpp The corresponding icon and measure value will display on the third option area 4 2 Taking Cursor Measurements Measuring Ring Frequency To measure the ring frequency at the rising edge of a signal follow these steps 1 2 Press the CURSORS button to see the Cursor Menu Press the Mode button to select Manual 126 w Press the Type option button and select Time Press the Source option button and select CH1 5 Press the CurA button and turn the universal knob to place the cursor A on one peak of the ring 6 Press the Cur B button and turn the universal knob to place the cursor B on the nearest peak of the ring You can see the delta time and frequency the measured ring frequency on the top left of the screen Figure 4 1 Taking Cursor Measurements Time e Measuring Ring Amplitude To measure the amplitude follow these steps 1 Press the CURSORS button to see the Cursor Menu Press the Mode button to
55. e then press the Confirm button about five seconds there will be a message Save data success displayed on the screen Now the waveform data have been saved to the USB flash drive Recall waveforms from USB flash drive follow next steps 1 2 3 Press the SAVE RECALL button Press the Type button to select Waveforms Insert a USB flash drive to the front or rear USB host port of the oscilloscope and wait until the oscilloscope has initialized USB flash drive within ten seconds Press the Save to option button to select File Press the Save option button then go into the Save Recall interface Choose the file you want then press the Load option button about five seconds there be a message Recall data success displayed on the screen Now the waveform data have been recalled from the USB flash drive Save Picture Screenshot The display screenshot can be saved to a USB flash drive but they cannot be recalled Images can be opened on a computer 98 Table 3 48 Picture Storage Menu Option Setting Description saxe ii Saves screenshot to USB flash drive Figure 3 52 Save Picture Screen To save waveform images to USB flash drive follow the steps below 1 Select the screen image that you want 2 Press the SAVE RECALL button to enter SAVE RECALL menu 3 Press the Type option button to select Picture 4 Insert
56. etting Menu Full Screen Record Repla Figure 3 73 Recorder Option Screen 123 Recorder Operation step T 2 gt Help Menu Press the UTILITY button to enter Utility menu Press the Next Page option button to enter the fourth page of Utility menu Press the Recorder button to enter the Recorder menu Press the Option button to set Recorder options Press the Record button to enter the Record menu and then press Start button to start recording waveform After completely recording waveform press the Replay button to view the recorded waveform 7 The oscilloscope has a help menu to assist users with operating the oscilloscope Press the HELP button to enter the help status and then press any button to recall the corresponding help information All submenus of every main menu have their help information NOTE If you want to see help information of the next page submenus first press the HELP button to exit the help status Then switch to the next page menu and press the HELP button again to enter the help function 124 4 Application Examples This section presents a series of application examples These simple examples highlight the features of the oscilloscope and give ideas for using it to solve your own test problems e Taking simple measurements Taking cursor measurements e Capturing a single shot signal e Analyzing signal
57. evel Display Marker Vertical Display Markers Ground Reference Channel Source Coupling Type Volts Division BW Limit Indicator Timebase Setting Horizontal Trigger Position Display Frequency Counter Trigger Source Type and Level Indicator Rear USB Indicator Print Key Save Function Indicator Waveform Display Preview Horizontal Trigger Position Marker USB Flash Drive Indicator O O O O Trigger Status 2 Getting Started Before connecting and powering up the instrument please review and go through the instructions in this chapter 2 1 Input Power Requirements Input Power The supply has a universal AC input that accepts line voltage and frequency input within 100 240 V 10 50 60 Hz 5 100 127 V 45 440 Hz Before connecting to an AC outlet or external power source be sure that the power switch is in the OFF position and verify that the AC power cord including the extension line is compatible with the rated voltage current and that there is sufficient circuit capacity for the power supply Once verified connect the cable firmly The included AC power cord is safety certified for this instrument operating in rated range To change a cable or add an extension cable be sure that it can meet the required power ratings for this instrument Any misuse with wrong or unsafe cables will void the warranty 2
58. frames 7 Select End Frame and turn the Universal knob to adjust the max record frame 8 Press in Operate option to record waveform Play Back Play back current recorded waveforms or recorded waveforms that have been saved Table 3 61 Waveform Playback Function Menu 1 Option Setting Description 118 Mode Play Back Set the Play Back function menu gt Run Press to start playback playin Operate Run payee playing E Stop Press to stop playing Set circular play mode Play Mode e R P Y gt Set single time play mode Interval 4 Set time interval between frames Enter the second page of Play Back Next Page Page 1 2 meh pas y u Operate Play Mode Figure 3 69 Playback Menu Screen 1 Recode Mode Table 3 62 Waveform Playback Function Menu 2 Option Setting Description Start Frame 4 Set start frame Curr_Frame 4 Select current frame to be played End Frame 4 Set End frame Return Press to return to the waveform recorder main menu Next Page Page 2 2 Return to the first page of Play Back function menu 119 Figure 3 70 Playback Menu Screen 2 Recode Mode To play back current record waveforms follow these steps T 2 3 Press UTILITY button to enter Utility menu Press the Mode option button to select Play Back Press the Play Mode option button
59. ful 135 e USB Flash Drive isn t connected When the Save To option is set to File or the Print Key option is set to Save Picture in Save Recall menu press the Save option button or the Time div knob before inserting the USB Flash Drive to the USB Host port or this will appear on the screen e Record Wave Success This message will appear when you finish recording waveforms 6 2 Troubleshooting 1 After the oscilloscope is powered on the screen remains dark Please do the following 1 Check the power cable s connection 2 Check the rear AC main input switch located above the AC input receptacle Make sure it is in the ON position 3 After the inspecting above restart the oscilloscope 2 If there is no signal wave in the screen after probing DUT for a signal please do as follows 1 Check whether the probe is connecting with the signal cable or not 2 Check whether the signal cable is connected with the BNC connector or not 3 Check the probe whether it s connected with the device under test DUT or not 4 Check the tested DUT to see if it produces the signal or not 5 Try to probe the DUT for signal again 3 If the value of the tested voltage is 10 times higher or lower than actual please do the following Check the attenuation quotient whether it matches the probe attenuation proportion or not 4 If waveform display is not stable please do the following 1
60. gger on Rising edge and Falling edge of the trigger signal 45 Use this mode to let the acquisition free run in the absence of a valid trigger This mode allows an untriggered scanning waveform at 100 ms div or slower time base settings Use this mode when you want to see only valid triggered waveforms when you use this mode the oscilloscope does not display a waveform until after the first trigger When you want the oscilloscope to acquire a single waveform press the SINGLE button Enter the Trigger Setup Menu See Table 3 16 Table 3 16 Trigger Setup Function Menu Option Setting Explain Coupling DC Passes all components of the signal Blocks DC components attenuates AC signals below 50 Hz Attenuates the high frequency components above 150 kHz HF Reject Blocks the DC component attenuates the LF Reject low frequency components below 7 kHz Holdoff Using the universal knob to adjust holdoff time sec the holdoff value is 9D displayed Holdoff Reset holdoff time to 100ns Reset 46 Return Return to the first page of Trigger main menu Slope ES Mode Auto Set Up Figure 3 22 Trigger Menu Screen Operating Instructions 1 Setup Type e Press the TRIG MENU button to display Trigger menu e Press the Type option button to select Edge 2 Set up Source e According to the input signal
61. he voltage impulses expected and required insulation clearances These categories are Category CAT Measurement instruments whose measurement inputs are not intended to be connected to the mains supply The voltages in the environment are typically derived from a limited energy transformer or a battery Category II CAT II Measurement instruments whose measurement inputs are meant to be connected to the mains supply at a standard wall outlet or similar sources Example measurement environments are portable tools and household appliances Category III CAT III Measurement instruments whose measurement inputs are meant to be connected to the mains installation of a building Examples are measurements inside a building s circuit breaker panel or the wiring of permanently installed motors Category IV CAT IV Measurement instruments whose measurement inputs are meant to be connected to the primary power entering a building or other outdoor wiring Do not use this instrument in an electrical environment with a higher category rating than what is specified in this manual for this instrument You must ensure that each accessory you use with this instrument has a category rating equal to or higher than the instrument s category rating to maintain the instrument s category rating Failure to do so will lower the category rating of the measuring system Electrical Power This instrument is intended to be powered from a CATEGORY II ma
62. igger Menu 1 Table 3 22 Slope Trigger Function Menu 2 Option Setting Instruction Trigger on positive slope or negative Type Slope slope according to setup time of the oscilloscope Select the trigger level that can be adjusted by LEVEL knob You can adjust LEVEL A LEVEL B or adjust them at the same time Vertical Mode Use this mode to let the acquisition free run in the absence of a valid trigger This mode allows an untriggered scanning waveform at 100 ms div or slower time base settings Auto 55 Use this mode when you want to see only valid triggered waveforms when you use this mode the oscilloscope does not display a waveform until after the first trigger When you want the oscilloscope to acquire a single waveform press the SINGLE button Normal Single Enter Trigger setup menu See Table Set up 3 16 Next Page Page 2 2 Return to the first page of slope trigger Mode Auto Set Up Next HighPos LV Figure 3 27 Slope Trigger Menu 2 Operating Instructions Follow the next steps after Slope Trigger is selected Input a signal to CH1 or CH2 Press the AUTO button Press the TRIG MENU button to enter Trigger menu Press the Type option button to select Slope Press the Source option button to select CH1 or CH2 oP woe 56 6 Press
63. ins power environment The mains power should be 120 V RMS or 240 V RMS Use only the power cord supplied with the instrument and ensure it is appropriate for your country of use Ground the Instrument To minimize shock hazard the instrument chassis and cabinet must be connected to an electrical safety ground This instrument is grounded through the ground conductor of the supplied three conductor AC line power cable The power cable must be plugged into an approved three conductor electrical outlet The power jack and mating plug of the power cable meet IEC safety standards Do not alter or defeat the ground connection Without the safety ground connection all accessible conductive parts including control knobs may provide an electric shock Failure to use a properly grounded approved outlet and the recommended three conductor AC line power cable may result in injury or death Unless otherwise stated a ground connection on the instrument s front or rear panel is for a reference of potential only and is not to be used as a safety ground Do not operate in an explosive or flammable atmosphere Do not operate the instrument in the presence of flammable gases or vapors fumes or finely divided particulates The instrument is designed to be used in office type indoor environments Do not operate the instrument e Inthe presence of noxious corrosive or flammable fumes gases vapors chemicals or finely divided particulates
64. ition Save Recall 20 setups and 10 captured waveforms to from internal memory or to external USB flash drive Measurement System Measure 32 Types Vpp Vmax Vmin Vamp Vtop Vbase Vavg Mean Crms Vrms ROVShoot FOVShoot RPREShoot FPREShoot Rise time Fall time Freq Period Wid Wid Dut Dut BWid Phase FRR FRF FFR FFF LRR LRF LFR LFF Cursor Measure Manual mode Track mode and Auto mode General Display 7 0 Color TFT LCD Display Resolution 480 x 234 pixels Display Color 24 bit Display Contrast 150 1 Typical Backlight Intensity 300 nit Typical Wave Display Range 8 x 18 div Wave Display Mode Dots Vector Waveform Interpolation Sin x x Linear 141 Simplified Chinese Traditional Chinese Language English Arabic French German Russian Portuguese Spanish Japanese Korean Italian Temperature Operating 10 C to 40 C Not operating 20 C to 60 C Cooling Cooling Fan 0 Operating 85 RH 40 C 24 hours Piai Not operating 85 RH 65 C 24 hours Operating 3000m Altitude Not operating 15 266m AC Input 100 240 VAC CAT II Auto selection Frequency 45 Hz to 440 Hz Power 50 VA Max Length 323 1 mm Dimension Width 135 6 mm Height 157 mm Weight 2 5 kg 8 Calibration We recommend a calibration interval of once per year 142 SERVICE INFORMATION W
65. knob or press the InputChar option button to add it to the specific position in the Name field e Additional selections for BackSpace DeleteCharacter and CleanName are available for convenience and are also accessed using the Universal knob in the same manner e Press the Confirm option button when you have the Name field completed as desired to save the file onto the memory device After the Confirm option button is pressed a Data Store Success messages briefly shown and the new folder or file is shown on your USB flash drive Save Recall Setup Save Setups to Device The complete setup is stored in nonvolatile memory When you recall the setup the oscilloscope will be in the mode from which the setup was saved The oscilloscope saves the current setup if you wait three seconds after the last change before you power off the oscilloscope The oscilloscope recalls this setup the next time you apply power Table 3 43 Save Setup to Device Menu opion Seting oecon Menu for the Storage Recall setting ype etups in the oscilloscope Save setup to the oscilloscope s Save to Device internal memory 91 Press the Setup option button or Setup No 1 to No 20 turn the universal knob to select storage position Save to the selected storage Save location Recall from the storage location Recall ae indicated by Setup SweTo Device Setup No 1 Save Fig
66. knob to select No 1 6 Turn the Volts div knob or Time div knob to adjust the waveform that you want 96 7 Press the Save option button To recall waveforms follow the steps below 1 Press the SAVE RECALL button to enter SAVE RECALL display menu 2 Press the Type option button to select Waveforms Press the Save to option button to select Device 4 Press the Waveform option button or turn the Universal knob to select No 1 5 Press the Recall option button g9 Save Waveforms to USB Flash Drive Table 3 47 Save Waveform to USB Flash Menu opion sewn Besant Menu for the Storage Recall Type Waveforms waveforms Select save location to USB flash Save to File i drive bet Figure 3 51 Save Waveform Screen To Flash Drive 97 To save waveforms to a USB flash drive follow the steps below 1 2 Input a sine signal to channel 1 press the AUTO button Press the SAVE RECALL button to enter the SAVE RECALL display menu Press the Type option button to select Waveforms Insert a USB flash drive to the front or rear USB host port of the oscilloscope and wait until the oscilloscope has initialized USB flash drive about five seconds Press the Save to option button to select File Press the Save option button then you ll go into the Save Recall interface Create a fil
67. l When you press the Volt div knob you can switch Volts div option between Coarse and Fine The vertical scale is set by a 1 2 5 step sequence in Coarse mode Increase in the clockwise direction and decrease in the counterclockwise direction In Fine mode the knob changes the Volts Div scale in small steps between the coarse settings Again increase in the clockwise direction and decrease in the counterclockwise direction Channel Function Menu Table 3 3 Channel Function Menu Option Setting Introduction DC DC passes both AC and DC components of the input signal AC blocks the DC component of the Coupling AC A input signal and attenuates signals below 10 Hz GND GND disconnects the input signal On Limits the bandwidth to reduce display noise filters the signal to BW limit aol EA z reduce noise and other unwanted off high frequency components Selects the resolution of the Coarse i ne Volts Div Volts Div kno Fine Coarse defines a 1 2 5 sequence 22 Fine changes the resolution to small steps between the coarse settings 1X 5X Set to match the type of probe you 10X 50X are using to ensure correct vertical Probe 100X 500X readouts 1000X Press this button to enter the second Next Page Page 1 3 page menu Table 3 4 Channel Function Menu 2 Option Setting Instruction on Turn on invert fu
68. libration you must disconnect all the probes and leads and make sure the scope is not in Single Shot mode Then press the Utility button to choose the Do self cal to show the self Calibration 107 Menu and execute self calibration program according to the prompt on the screen Disconnect Everything from All Inputs Figure 3 60 Self Calibration Screen Self Test Press UTILITY and select Do Self Test Table 3 55 Self Test Menu 1 foption Description i Screen Test Run Screen Test Program Keyboard Test Run Keyboard Test Program LED Test Run LED Test Program Screen Test Select Screen Test to enter the screen test interface The message Press SINGLE Key to continue Press RUN STOP Key to exit is displayed Press Single button to run through the screen color test or press Run Stop to exit 108 Figure 3 61 Screen Test Start Screen Keyboard Test Select Keyboard Test to enter the key test interface The on screen shapes represent the front panel keys The shapes with two arrows beside them represent the front panel knobs The squares represent the knob presses for scale knobs Test all keys and knobs to verify that all the backlit buttons illuminate correctly NOTE When you first enter the test the screen will display all on screen shapes in white color Pressing any buttons on the front panel will cause its corresponding shape on
69. ling on the screen Adjust the sampling rate by turning the Time div front panel knob The sampling rate is shown under the Sa Rate display 3 13 Display System The display function can be setup by pressing the DISPLAY button Table 3 32 Display System Menu 1 Option Setting Description Vectors fill the space between Vectors adjacent sample points in the Type display Dots There is no link between adjacent sample points Off 1sec Sets the length of time each Persist 2 sec displayed sample point remains 5 sec displayed Infinite Intensity Y Set waveforms intensity lt Intensity gt Brightness D Set grid brightness lt Brightness gt Next Page Page 1 3 Press this button to enter second 70 page Figure 3 35 Display Menu 1 Table 3 33 Display System Menu 2 Option Setting Description YT format displays the vertical voltage in relation to time Format YT horizontal scale XY format XY displays a dot each time a sample is acquired on channel 1 and channel 2 Normal Set to normal mode Screen Inverted Set to invert color display mode Zz Display grids and axes on the screen Grid Turn off the grids Turn off the grids and axes 2sec Menu Display 5sec Set menu display time on screen 10sec 71 20sec Infinite Press this button to enter the Next Page Page 2 3 ee gea seco
70. mple mode Disadvantage Noise will appear to be higher in this mode Mode Sa Rate 2 500MSa CHi 1 24U Figure 3 32 Peak Detect 67 e Average The oscilloscope acquires several waveforms averages them and displays the resulting waveform Advantage You can use this mode to reduce random noise Mode Figure 3 33 Average Acquisition e Equivalent Time Sampling The equivalent time sampling mode can achieve up to 20 ps of horizontal resolution equivalent to 50GSa s This mode is good for observing repetitive waveforms e Real Time Sampling The scope has a maximum Real time sampling rate of 1GSa s e RUN STOP Button Press the RUN STOP button when you want the oscilloscope to acquire waveforms continuously Press the button again to stop the acquisition e SINGLE Button Press the SINGLE button to acquire a single waveform Each time you push the SINGLE button the oscilloscope begins to acquire another waveform After the oscilloscope detects a trigger it completes the acquisition and stops When you push the RUN STOP or SINGLE buttons to start an acquisition the oscilloscope goes through the following steps 68 1 Acquire enough data to fill the portion of the waveform record to the left of the trigger point This is also called the pre trigger 2 Continue to acquire data while waiting for the trigger condition to occur 3 Detect the trigger condition 4 Continue to acquire data u
71. nction Invert off Turn off invert function Press this button to enter the Filter Wea os Digital Filter menu Page 2 3 Press this button to enter the third Next Page page menu Table 3 5 Channel Function Menu 3 Option Setting Introduction V Set the scale unit to voltage Unit A Set the scale unit to current 100 ns Set the skew time between two Skew 100ns channels Press this button to return to the Next Page Page 3 3 first page menu 23 Table 3 6 Digital Filter Menu Option Setting Introduction On Turn on the digital filter Digital Filter Off Turn off the digital filter taf Setup as LPF Low Pass Filter Lof Setup as HPF High Pass Filter Type taf Setup as BPF Band Pass Filter bof Setup as BRF Band Reject Filter bos Turn the Universal knob to set Upper_limit ys upper limit nee Turn the Universal knob to set Lower_limit ie ss lower limit Return Return to the second page menu e GND Coupling Use GND coupling to display a zero volt waveform Internally the channel input is connected to a zero volt reference level e Fine Resolution The vertical scale readout displays the actual Volts Div setting while in the fine resolution setting Changing the setting to coarse does not change the vertical scale until the VOLTS DIV control is adjusted NOTE The oscilloscope s vertical response rolls off slowly abo
72. nd open the channel menu for that channel You can use the channel menu to set up a channel When the channel is on the channel button is lit MATH Press to display the Math menu You can use the MATH menu to use the oscilloscope s Math functions REF Press to display the Ref Wave menu You can use this menu to save and recall four or two reference waveforms to and from internal memory 14 HORI MENU Press to display the Horizontal menu You can use the Horizontal menu to display the waveform and zoom in a segment of a waveform TRIG MENU Press to display the Trigger menu You can use the Trigger menu to set the trigger type Edge Pulse Video Slope Alternative and trigger settings SET TO 50 Press to stabilize a waveform quickly The oscilloscope can set the trigger level to be halfway between the minimum and maximum voltage level automatically This is useful when you connect a signal to the EXT TRIG connector and set the trigger source to Ext or Ext 5 FORCE Use the FORCE button to complete the current waveform acquisition whether the oscilloscope detects a trigger or not This is useful for Single acquisitions and Normal trigger mode SAVE RECALL Press to display the Save Recall menu You can use the Save Recall menu to save and recall up to 20 oscilloscope setups and 10 waveforms to from internal memory or a USB memory device limited by memory capacity of the USB flash drive You can also use it to recall the default
73. nd page of Display menu DISPLAY Format Screen Grid ge 3 Figure 3 36 Display Menu 2 Table 3 34 Display System Menu 3 Option Setting Description Skin Classical Set up screen style Modern Tradition Succinct Next Page Page 3 3 Press this button to return to the first page Operating Instructions Set up waveform display type 1 Press the DISPLAY button to enter the Display menu 2 Press the Type option button to select Vectors or Dots 72 Set up Persist Press Persist option button to select Off 1 Sec 2 Sec 5 Sec or Infinite You can use this option to observe some special waveforms DISPLAY Type Figure 3 37 Persist Screen Set up Intensity Press the Intensity option button and turn the Universal knob to adjust waveforms intensity Set up Brightness Press the Brightness option button and turn the Universal knob to adjust grid brightness Set up display format 1 Press the Next Page option button to enter second display menu 2 Press the Format option button to select YT or XY Set up Screen Press the Screen option button to select Normal or Inverted to set the screen display color Set up Grid ee Press the Grid option button to select ne EX or C to set the screen whether display grid or no
74. ntil the waveform record is full 5 Display the newly acquired waveform e Time Base The oscilloscope digitizes waveforms by acquiring the value of an input signal at discrete points The time base allows you to control how often the values are digitized To adjust the time base to a horizontal scale that suits your purpose use the Time div knob e Time Domain Aliasing Aliasing occurs when the oscilloscope does not sample the signal fast enough to construct an accurate waveform record When this happens the oscilloscope displays a waveform with a frequency lower than the actual input waveform or triggers and displays an unstable waveform Actual high frequency waveform Apparent low frequency waveform due to aliasing Sampled points Figure 3 34 Time Domain Aliasing Illustration Operating Instructions Set up Sampling Format You can press the Acquisition option button or turn the Universal knob to select Sampling mode Peak Detect mode or Average mode 69 Set up Averages When you select Average format you can press the Averages option button to select 4 16 32 64 128 or 256 Set up function interpolation You can select Sinx interpolation or linear interpolation Set up Sampling Mode Press the Mode option button to select Real Time or Equ Time Set up Sampling Rate The sampling rate is based on the time division sca
75. o display CH1 menu Turn the Time div knob to adjust the sampling rate at least double the frequency of input signal If FFT is displayed on full screen press CH1 button again to remove channel waveform display Press the CURSOR button to enter Cursor menu Press the Cursor Mode button to select Manual Press the Type option button to select Voltage Press the Source option button to select MATH Press the CurA option button turn the Universal knob to move Cursor A to the highest point of the FFT waveform Press the CurB option button turn the Universal knob to move Cursor B to the lowest point of the FFT waveform The amplitude AT displays on the top of the left screen M 1 68ms Figure 3 16 Measuring FFT Amplitude e Measure FFT Frequency 1 Press the CURSOR button 37 Press the Cursor Mode button to select Manual Press the Type option button to select Time Press the Source option button to select MATH Press the CurA option button turn the Universal button to move Cursor A to the highest position of the FFT waveform 6 The value of CurA displaying on the top of the left screen is FFT frequency This frequency should be the same as input signal frequency WV Pwn Mode Manual Type Figure 3 17 Measuring FFT Frequency NOTE The FFT of a waveform that has a DC
76. ontal POSITION knob 1 Adjust the horizontal position of all channels and math waveforms the position of the trigger relative 41 to the center of the screen The resolution of this control varies with the time base setting 2 When you press the horizontal POSITION Knob you can set the horizontal position to zero e Time div knob 1 Used to change the horizontal time scale to magnify or compress the waveform If waveform acquisition is stopped using the RUN STOP or SINGLE button turn the Time div knob to expand or compress the waveform 2 Select the horizontal Time div scale factor for the main or the window time base When Window Zone is enabled it changes the width of the window zone by changing the window time base e Display scan mode When the Time div control is set to 100 ms div or slower and the trigger mode is set to Auto the oscilloscope enters the scan acquisition mode In this mode the waveform display updates from left to right There is no trigger or horizontal position control of waveforms during scan mode Window Zone Use the Window Zone option to define a segment of a waveform to see more detail This function behaves like zooming into a portion of the captured waveform The window time base setting cannot be set slower than the Main time base setting You can turn the Horizontal Position and Time div controls to enlarge or minimize waveforms in the Window Zone If you want to
77. option button to select gt to run the pass fail test Waveform Record Record Press the Record option to record the input waveform from CH1 or CH2 with a maximum record length of 2500 frames The time between frames is adjustable You can record Pass Fail test output especially useful when capturing abnormal signals over a long period of time without having to watch the signal Table 3 60 Waveform Record Function Menu Option Setting Description Record Set Record function menu Mode Play Back Set Play Back function menu Storage Set Storage function menu Off Turn off waveform recorder menu CH1 Source CH2 Select record source channel P F OUT Set time interval between record Interval 4 frames End Frame 4 Set max number of record frames be Press to start recordin ing Operate Record ne E Press to stop recording Stop 117 Figure 3 68 Record Menu Screen Record Mode To record waveforms follow these steps 1 Press the UTILITY button to enter Utility menu 2 Press the Next Page option button to enter the third page of Utility menu 3 Press the Record button to enter Waveform Record Menu 4 Press the Mode option button to select Record 5 Press the Source option button to select the input signal channel 6 Select Interval option and turn the Universal knob to adjust time interval between record
78. ors CATII Figure 3 2 Connectors Channel Connector CH1 CH2 Input connectors for waveform display EXT TRIG Input connector for an external trigger source Use the Trigger Menu to select the Ext or Ext 5 trigger source Probe Compensation 1 kHz voltage probe compensation output and ground Use to electrically match the probe to the oscilloscope input circuit 16 3 3 Auto Setup The 2190D Digital Storage Oscilloscope has an Auto Setup function that identifies the waveform types and automatically adjusts controls to produce a usable display of the input signal Press the AUTO front panel button and then press the menu option button adjacent to the desired waveform as follows AUTOSET Figure 3 3 Auto Setup Table 3 1 Autoset Menu Option Description nnam Auto set the screen and display several cycles signal Multi cycle sine m Set the screen and auto display single cycle signal Single cycle sine F Auto set and show the rising time Rising edge 17 ES Auto set and show the falling time Falling edge a Causes the oscilloscope to recall the previous setup Undo Setup Auto Set determines the trigger source based on the following conditions e f multiple channels have signals channel with the lowest frequency signal e No signals found the lowest numbered channel displayed when Auto set was invoked e No signals
79. oscilloscope meets specifications the oscilloscope must first meet the following conditions e The oscilloscope must have been operating continuously for 30 minutes within the specified operating temperature e You must perform the Do Self Cal operation accessible through the Utility menu if the operating temperature changes by more than 5 C e The oscilloscope must be within the factory calibration interval All specifications are guaranteed unless noted typica 2190D Inputs Input Coupling AC DC GND Input Impedance 1MQ 2 16 pF 3 pF Maximum Input voltage 400 V DC AC PK PK 1 MQ input impedance X10 CAT Ch to Ch Isolation Both channels in same V div setting gt 100 1 at 100 MHz Probe Attenuator 1X 10X Probe Attenuator Factors Set 1X 5X 10X 50X 100X 500X 1000X Vertical System Vertical Sensitivity 2 mV div 10 V div 1 2 5 order Channel Voltage Offset Range 2mV 200mV 1 6V 206mV 10V 40V Vertical Resolution 8 bit Channels 2 Analog 100 MHz Bandwidth 3 dB Lower frequency 10 Hz at input BNC 138 limit AC 3 dB DC Gain Accuracy 5 mV div to 10 V div in Fixed Gain Ranges lt 3 0 2 mV div Variable Gain Ranges lt 4 0 DC Measurement Accuracy All Gain settings lt 100 mV div 3 x reading offset 1 x offset 0 2 div 2 mV DC
80. ption Slope Triggering on rising edge Triggering on falling edge Triggering on rising edge and falling edge Enter Trigger setup menu See Table seal ea 3 16 Go to the back to the first page of the Next Page Page 2 2 TRIGGER Menu Edge Table 3 25 Alternate Trigger Pulse Mode Function Menu 1 Option Setting Description The trigger signal comes from two vertical channels when you use alternative trigger In this mode you can observe two irrelative signals at the same time Type a YP Alternate 58 Channels CH1 CH2 Set the trigger channels Set trigger type information for CH1 signal Set trigger type information for CH2 signal Node Set trigger type of the vertical channel signal to Pulse trigger Enter the second page of Alternative Next Page Page 1 2 trigger menu Table 3 26 Alternate Trigger Pulse Mode Function Menu 2 onion Satine foen PL ae Select how to compare the trigger pulse relative to the value selected in FE the Set Pulse Width option F Source H Set Width 20 0ns 10 0s Selecting this option can turn the universal to set up the pulse width Set up Enter the Trigger Setup Menu See Table 3 16 Page 2 2 Press this button to return to the first page Table 3 27 Alternate Trigger Video Mode Function Menu 1 Option sme oer 59 Type Alternative The trigger signal comes from two vertical channels when you use alte
81. pull the instrument with the power cord connected probe or connected test lead e Do not move the instrument when a probe is connected to a circuit being tested vii Compliance Statements Disposal of Old Electrical amp Electronic Equipment Applicable in the European Union and other European countries with separate collection systems This product is subject to Directive 2002 96 EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment WEEE and in jurisdictions adopting that Directive is marked as being put on the market after August 13 2005 and should not be disposed of as unsorted municipal waste Please utilize your local WEEE collection facilities in the disposition of this product and otherwise observe all applicable requirements viii CE Declaration of Conformity This instrument meets the requirements of 2006 95 EC Low Voltage Directive and 2004 108 EC Electromagnetic Compatibility Directive with the following standards Low Voltage Directive EN61010 1 2001 EN61010 031 2002 A1 2008 EMC Directive EN 61326 1 2006 EN 61000 3 2 2006 A2 2009 EN 61000 3 3 2008 Safety Symbols Refer to the user manual for warning information to avoid hazard or personal injury and prevent damage to instrument Electric Shock hazard Alternating current AC Chassis earth ground symbol Ground terminal On Power This i
82. rees Figure 4 4 Out of Phase Signals in XY Mode 45 degrees Sin 8 A B or C D where 6 phase shift in degrees between the two signals from the formula above you could get tarcsine A B or tarcsine C D If the main axis of the ellipse is at Il and IV quadrant 8 must be in the range of 0 m 2 or 3m 2 2n If the main axis is at and III quadrant 8 must be in the range of m 2 m or n 37 2 132 4 7 Analyzing a Differential Communication Signal You are having intermittent problems with a serial data communication link and suspect poor signal quality Set up the oscilloscope to show a snapshot of the serial data stream so you can verify the signal levels and transition times Because this is a differential signal you can use the math function of the oscilloscope to view a better representation of the waveform To activate the differential signals connected to channel 1 and channel 2 follow these steps I pe DIN Bw Press the CH 1 button and set the Probe option attenuation to 10X Press the CH 2 button and set the Probe option attenuation to 10X Set the switches to 10X on the probes Press the AUTO button Press the MATH button to see the Math Menu Press the Operation option button and select Press the CH1 CH2 option button to display a new waveform that is the difference between the displayed waveforms You can adjust the vertical scale and position of the Math w
83. rnative trigger In this mode you can observe two irrelative signals at the same time Channels CH1 CH2 Set the trigger channels Set trigger type information for CH1 signal Set trigger type information for CH2 signal Source Set trigger type of the vertical channel signal to Video trigger Enter the second page of Alternative Next Page trigger menu Table 3 28 Alternate Trigger Video Mode Function Menu 2 onion Satine peen Normal triggers on the negative edge aema of the sync pulse TL Inverted Inverted triggers on the positive edge of the sync pulse Polarity Sync Line Num All lines Select appropriate video sync Odd field Even Field Standard NTSC Select the video standard for sync and Pal Secam line number count Set up Enter the Trigger Setup Menu See Table 3 16 Press this button to return to the first Next Page Page 2 2 npa 60 Table 3 29 Alternate Trigger Slope Mode Function Menu 1 onion Serine oeri O Alternative The trigger signal comes from two vertical channels when you use alternative trigger In this mode you can observe two irrelative signals at the same time CH1 CH2 Set the trigger channels Set trigger type information for CH1 CH1 signal Source A CH2 Set trigger type information for CH2 signal Set trigger type of the vertical channel Mode Slope goer typ signal to slope trigger Enter the second page of the Next Page
84. rough the trigger circuit It is useful for obtaining a steady waveform If you use trigger coupling you should press the TRIG MENU button and then select Edge Pulse Video or Slope trigger Then select the Coupling option in the Set Up menu Position The horizontal position control establishes the time between the trigger position and the screen center You can adjust the horizontal POSITION knob control to view waveform data before the trigger after the trigger or some of each When you change the horizontal position of a waveform you are changing the time between the trigger and the center of the display actually This appears to move the waveform to the right or left on the display Slope and Level The Slope and Level controls help to define the trigger The Slope option Edge trigger type only determines whether the oscilloscope finds the trigger point on the rising and or the falling edge of a signal The TRIGGER LEVEL knob controls at what point on the edge the trigger occurs 63 Rising edge Falling edge Aeon paysnipe aq ueo janaj 196611 Figure 3 29 Rising and Falling Edge Illustration NOTE Press the SINGLE button when you want the oscilloscope to acquire a single waveform Trigger coupling affects only the signal passed to the trigger system It does not affect the bandwidth or coupling of the signal displayed on the screen Normal Polarity Sync trigger
85. s always occur on negative going horizontal sync pulses If the video waveform has positive going horizontal sync pulses use the Inverted Polarity selection Trigger Holdoff You can use the Trigger Holdoff function to produce a stable display of complex waveforms Holdoff is time between when the oscilloscope detects one trigger and when it is ready to detect another The oscilloscope will not trigger during the holdoff time For a pulse train you can adjust the holdoff time so the oscilloscope triggers only on the first pulse in the train 64 Trigger position Trigger level Holdoff time Figure 3 30 Trigger Holdoff Illustration If you want to change holdoff time please follow the steps below 1 Press the TRIG MENU button to show the TRIG Menu 2 Press the Type option button to select trigger type 3 Press the Set Up option button to enter the Trigger setup menu 4 Press the Holdoff option button and turn the Universal knob to change the holdoff time until the waveform triggers steadily NOTE Use trigger holdoff to help stabilize the display of aperiodic waveforms 3 12 Signal Acquisition System Shown below is the ACQUIRE button for entering the menu for Acquiring Signals Table 3 31 Acquire Function Menu opon Seting oerion Acduist s li Use for sampling and accurately EA Ampang display most of the waveform 65 Peak Dete
86. s the In position of the power switch when instrument is ON Off Power This is the Out position of the power switch when instrument is OFF Off Supply This is the AC mains connect disconnect switch on top of the instrument CAUTION indicates a hazardous situation which if not avoided will result in minor or moderate injury WARNING indicates a hazardous situation which if not avoided could result in death or serious injury DANGER indicates a hazardous situation which if not avoided will result in death or serious injury HE cor escape A DANGER Table of Contents Safety SUMIMALY ccccccicececcsesecccedecececedecesecedecesecevesesecedeceCecedesedecedecedeceveretece i Compliance StateMents vecic cs idssesesedcce secs cseveddbasccetsidebavesededesblavienacsteceves viii Safety Symbols meiren tivese a aE E E i a aaiae E O x 1 General Information ssssssssssssssessssssssssssesssssseeeseeseseeneeseessseesssssse 1 1 1 Product OVervieW cccccessececeenececseeeeceeseeeceeaueceseeeeceeaeeeeeeaeeens 1 1 2 Package CONTEN S e ie winch a en aun ce SN iE 1 1 3 Front Panelo en aaa erreen a eieaa aa oee eenaa na aia anana 2 Front Panel Description ssesssesssssesseereessssesrrrreessesrrernessssreereesessesreee 2 1 4 Back Panel aiei eiin ei dave Ea E AEE EiS 3 Back Panel DESH Ption zs Brosse E E s bane 4 1 5 Display Information ccccccccccccessssssseceeececseseeaeseeeescsese
87. saeeeeeeeees 4 User Interface Description sesssesssssesseersrssssesrrrresssessrereessssrerreeressesreee 5 2 Getting Started ccc ccccccecccccesscccecssecccecssesccecssenccesssenssecssercvecsvencsecsdeneves 6 2 1 Input Power Requirements cccccceesessseseseseseseseseseseseeeseeerens 6 Input POW cessere 2 2 Preliminary Check Verify AC Input Voltage Connect Power eesesesesessses Self Teste eiea L E A E i E a a i ee Self Ca hansae oe bonds eA a e E EEA Check Model and Firmware Version F nction Check roiasca aer E e a i a ai Probe Satety E EREE A A AR LTA Probe Attenuation Probe Compensation 3 Functions and Operating Descriptions sssssssssssssssssssssseees 13 3 1 Menu and Control Button cccccccesesesesesesesesesesesesesesesesenens 3 2 Connectors 3 3 Auto Setup xi 3 4 D fa lt Set ssiccvesealevies ovrensina adie E ea 19 3 5 Universal KAO Dirnet n eanne ia ninan REE ea aiee ironii tesha Nean iran 20 3 6 Vertical Systemene ar Holancnsads codavsis idaccsesekste ANES 21 Using Vertical Position Knob and Volts div Knob ccccccseceseceeeees 21 3 7 Channel Function Menu ccsesccccsestececssececeeseeeceeaaeeeesteeeeeees 22 Setting Up Channel ss scsi ces csveecnnctehosseuienwede cies pieaacueverecseseedtasen codecvun see 25 3 8 Math FUN CtiONS e ss cesta ssenadeedencessecees ee asa ea EE a e aai 31 FET Spectrum Analyze k s a N Ea 32 3 9 OSATA A E A
88. scale to the satisfied range d Turn the LEVEL knob to adjust the trigger level 3 Press the RUN STOP button to start capturing When the trigger conditions are satisfied data appears on the display representing the data points that the oscilloscope obtained with one acquisition Pressing the RUN STOP button again rearms the trigger circuit and erases the display 4 4 Analyzing Signal Details You have a noisy signal displayed on the oscilloscope and need to know more about it You suspect that the signal contains much more detail than you can now see in the display e Looking at a Noisy Signal The signal appears noisy and you suspect that noise is causing problems in your circuit To analyze the noise better follow these steps 1 Press the ACQUIRE button to see the acquire menu 2 Press the Acquisition option button or turn the Universal knob to select Peak Detect 3 If necessary press the DISPLAY button to see Display menu Turn the Universal knob to adjust waveform intensity and grid brightness to see the noise more clearly Peak detect emphasizes noise spikes and glitches in your signal especially when the time base is set to a slow setting e Separating the Signal from Noise To reduce random noise in the oscilloscope display follow these steps 129 1 Press the ACQUIRE button to display the acquire menu 2 Press the Acquisition option button or turn the
89. select Manual Press the Type option button and select Voltage Press the Source option button and select CH1 Press the CurA option button and turn the universal knob to place the cursor A on the highest peak of the ring 6 Press the CurB option button and turn the universal knob to place the cursor B on the lowest peak of the ring WP oN 127 You can see the following measurements on the top of the left screen e The delta voltage peak to peak voltage of the ringing e The voltage at Cursor A e The voltage at Cursor B Manual Type Figure 4 2 Taking Cursor Measurements Voltage 4 3 Capturing a Single Shot Signal To capture a single event you need to gather some knowledge of the signal in order to correctly set up the trigger level and slope If you are not sure about the instance of the signal you can observe it through auto or normal trigger mode to ensure the trigger level and slope will capture the signal The following steps show you how to use the oscilloscope to capture a single event 1 Set the Probe option attenuation to 10X and set the switch to 10X on the probe 2 Trigger set up 128 a Press TRIG MENU button to show the Trigger Menu b Under this menu set the trigger type to edge Edge type is Rising source is CH1 trigger mode is Single coupling is DC c Adjust the horizontal time base and vertical
90. splays two horizontal parallel cursors or vertical parallel c ursors to measure voltage or time You can move the cursor by turning the Universal knob Before using cursors you should make sure that you have set the signal source as the channel for measuring Voltage Cursor Voltage cursors appear as horizontal lines on the display and measure the vertical parameters Time Cursor Time cursors appear as vertical lines on the display and measure the horizontal parameters Cursor Moving Use the universal knob to move cursor 1 and cursor 2 They could be moved when the corresponding cursor option are selected and cursor value will display on the bottom left and top left of the screen when you move the cursor To do manual cursor measurements follow these steps Press CURSOR button to enter the cursor function menu Press the Cursor Mode option button to select Manual Press the Type option button to select Voltage or Time Press the Source option button to select CH1 CH2 MATH REFA REFB according to input signal channel Select Cur A turn the Universal knob to adjust Cursor A Select Cur B turn the Universal knob to adjust Cursor B 7 The measurement values are displayed on the top of the left corner P WIRA au 76 If the measurement type is set to Voltage the values are as followed e The voltage incremen
91. strument is shipped with the following contents e 1x 2190D 100 MHz Digital Storage Oscilloscope e 1x User Manual printed e 1x AC power cord e 1x USB type A to Type B cable e 2x 1 1 10 1 Passive Oscilloscope Probes Verify that all items above are included in the shipping container If anything is missing please contact B amp K Precision 1 3 Front Panel It is important for you to familiarize yourself with the DSO s front panel before operating the instrument Below is a brief introduction of the front panel function operation BK PRECISION 2190D Dita Storage Osci oscope 190 Ms Figure 1 1 Front Panel Front Panel Description Front USB Type A Connector Menu function keys Menu On Off Print keys Input Channels 1 MQ BNC Probe Compensator 1 kHz and Ground Horizontal Controls Time Base Trigger Controls Auto Function Button OMENO RORO Menu and Measurement Buttons Universal Knob Vertical Controls 1 4 Back Panel The following images show back and side panel connection locations Figure 1 2 Back Panel Back Panel Description Security Lock Receptacle Pass Fail Output RS 232 Connector Rear USB Type B Device Connector Power Input Connector AC Power Switch 1 5 Display Information Figure 1 3 Display Screen User Interface Description Trigger L
92. t Set up Menu Display 73 Press the Menu Display option button to select 2 sec Ssec 10sec 20sec or Infinite to set menu display time on screen Set Skin Press the skin option button or turn the Universal knob to select Classical Modern Traditional or Succinct X Y Format Use the XY format to analyze phase differences such as those represented by Lissajous patterns The format plots the voltage on channel 1 against the voltage on channel 2 where channel 1 is the horizontal axis and channel 2 is the vertical axis The oscilloscope uses the untriggered Sample acquisition mode and displays data as dots NOTE The oscilloscope can capture a waveform in normal YT mode at any sampling rate You can view the same waveform in XY mode To do so stop the acquisition and change the display format to XY Operation steps e Channel 1 Volt div and vertical POSITION set up the horizontal scale and position e Channel 2 Volt div and vertical POSITION set up the horizontal scale and position e Turn the Time div knob to adjust the sampling rate e The following functions are forbidden in XY display form o Benchmark wave form and wave mathematic Cursor Auto resets display format to YT Trigger Control Horizontal Position Knob Vector Display Type Scan Display O O 0 OF OO 74 3 14 Measure System The oscilloscope displa
93. t between Cursor A and Cursor B AV e The value of Cur A CurA e The value of Cur B Cur B If the measurement type is set to Time the values are as followed e The time increment between Cursor A and Cursor B AT e The reciprocal of time increment between Cursor A and Cursor B 1 AT e The value of Cur A CurA e The value of Cur B Cur B Jur Figure 3 38 Cursor Menu Manual Track Mode Table 3 36 Track Mode Menu Option Setting Description In this mode set track cursor Cursor Mode Track measure 77 CH1 Set the input signal channel that Cursor A CH2 the Cursor A will measure NONE CH1 Set the input signal channel that Cursor B CH2 the Cursor B will measure NONE Cur A Selec this option tunane 4 Universal knob to adjust horizontal coordinate of Cursor A Cur B Select this option turn the D Universal knob to adjust horizontal coordinate of Cursor B In this mode the screen displays two cross cursors The cross cursor sets the position on the waveform automatically You could adjust cursor s horizontal position on the waveform by turning the Universal knob The oscilloscope displays the values on the top left of the screen To do track cursor measurement follow these steps 1 Press CURSOR button to enter the cursor measure function menu Press the Cursor Mode option button to select Track Press the Cursor
94. the When option button to select a an Ms a a a Re Spe AE ang A 7 Press the Time button turn the Universal knob to adjust slope time 8 Press the Next Page Page 1 2 option button to enter the second page of the Slope trigger menu 9 Press the Vertical option button to select trigger level that can be adjusted 10 Turn the LEVEL knob Alternate Trigger The trigger signal comes from two vertical channels when you use alternate trigger In this mode you can observe two irrelative signals at the same time You can select different trigger types for two vertical signals and selected types cover edge pulse video and slope trigger Trigger information of two channel signals display on the bottom right of the screen Mode Edge Figure 3 28 Alternate Trigger Menu Table 3 23 Alternate Trigger Edge Mode Function Menu 1 Option Setting Description SSCS 57 When using alternate trigger the triggered signal comes from two vertical channels In this mode you can observe two irrelative signals at a time Type Alternate Channels CH1 CH2 Set the trigger channels CH1 Set trigger type information for CH1 signal CH2 Set trigger type information for CH2 signal Set trigger type of vertical channel signal to edge Go to the second page of the TRIGGER Next Page Page 1 2 ech Table 3 24 Alternate Trigger Edge Mode Function Menu 2 Option Setting Descri
95. tility System Menu 4 option Seting Joson 1min 2min 5min 10min 15min 30min 1hour Set the time of Screen saver 2hour 5hour Off Screen saver Enter recorder function Recorder scan mode only Press this button to enter Next Page first page 105 Recorder Next Page Page 4 4 Figure 3 57 Utility Menu Screen 4 System Status Press the System Status option button of the Utility Menu to view the oscilloscope s hardware and software configuration Startup Ti Product T I No NGLE key to exit Figure 3 58 System Status Screen Table 3 54 System Status Information CO 106 Startup Times List the number of startup times Software version List the software version Hardware Version List the hardware version Product type List the product model Serial No List the product serial number Language Menu items can be displayed in 12 different languages selectable by the user Press the UTILITY button and then select Language UTILITY System Status Sound Counter Figure 3 59 Language Selection Screen Self Calibration Self Calibration procedure can optimize the signal path for optimal measurement results You can run this procedure at any time If the operating temperature changes by more than 5 C or the instrument runs more than thirty minutes running self calibration is recommended When you run the self Ca
96. tion Setting Description Start Start the recording Replay Replay the recorded waveform When Store Mode is set to USB key this will Copy show the filename Store Memory Stores recording to internal memory Mode USB key Stores recording to external USB flash drive Return Return to the Recorder Menu Table 3 65 Waveform Recorder Replay Mode Menu Option oeron Continue Pause Continue Pause when playing back a waveform recording Restart Restart the playback of the recorded waveform Previous Next Recall the waveform recording Fast forward play the recalled waveform recording Return Return to the Recorder Menu REPLAY M 166ms Figure 3 72 Replay Screen 122 Table 3 66 Waveform Recorder Option Menu opon Setting oeseri Sd Full Screen Waveform of Full screen recording and channel recalling Split Waveform of recording on split screen and channel recalling CH1 is displayed in upper half screen CH2 is displayed in lower half screen Viewer Recorder saves the channel waveform persistently the latter waveform will Record Mode cover the former Recorder will stop waveform saving when its memory is full By point When recalling the screen waveform refresh from left to right Replay Mode By frame When recalling screen waveform will refresh completely according to the capturing time of each frame Return e Exit the Recorder S
97. to see a complete video line across the screen Turn the Volts Div knob to ensure that the entire video signal is visible on the screen Application of X Y Function e Viewing Impedance Changes in a Network Connect the oscilloscope to monitor the input and output of the circuit To view the input and output of the circuit in an XY display follow these steps T o9 10 11 12 Press the CH 1 MENU button and set the Probe option attenuation to 10X Press the CH 2 MENU button and set the Probe option attenuation to 10X Set the switch of the probe to 10X Connect the channel 1 probe to the input of the network and connect the channel 2 probe to the output Press the AUTO button Turn the Volts div knobs to display approximately the same amplitude signals on each channel Press the DISPLAY button Press the Format option button and select XY The oscilloscope displays a Lissajous pattern representing the input and output characteristics of the circuit Turn the Volts div and VERTICAL POSITION knobs to optimize the display Press the Persist option button and select Infinite Press the Intensity or Brightness option buttons and turn the Universal knob to adjust the contrast of the screen Apply the Ellipse method to observe the phase difference between the two channels 131 Figure 4 3 Out of Phase Signals 45 deg
98. to select F or gt gt mm Press the Interval option button to select time interval between play back frames Press the Next Page Page 1 2 to enter the second page of Play Back function menu Select the Start Frame option turn the Universal knob to adjust the start frame of play back waveform Select the End Frame option turn the Universal knob to adjust the end frame of play back waveform Press the Next Page Page 2 2 option button to return to the first page of Play Back menu Press the b gt option button in Operate option to play back waveforms 120 Recorder Scan Mode Only This mode allows for gap free recording of waveform data and can be enabled in SCAN MODE only refer to Horizontal Control Knob section It is similar to the above described waveform recorder mode however the recorded data can be played back on screen and be retrieved from storage memory Maximum recordable data depends on the time base in scan mode Recorded data can also be stored into external USB flash drive Table 3 63 Waveform Recorder Function Menu omon oen O Record Record the waveform persistently Replay Replay recorded waveform Option Set the recorder properly Return Quit the recording function RECORDER Replay M 166ms Figure 3 71 Recorder Screen 121 Table 3 64 Waveform Recorder Record Mode Menu Op
99. tting Description CH1 Select input signal channel Source CH2 Turn on the all measurement function On to measure voltage parameters Voltage Off Turn of the all measurement function to measure voltage parameters Turn on the all measurement function On to measure Time parameters Time Off Turn of the all measurement function to measure Time parameters Turn on the all measurement function Dela On to measure Delay parameters y Off Turn of the all measurement function to measure Delay parameters Return Return to the All Measure main 83 menu Table 3 42 Types of Measurements Measure Type Description tJ The most positive peak voltage measured over the Vmax entire waveform ya The most negative peak voltage measured over the Vmin entire waveform Measures the absolute difference between the maximum and minimum peaks of the entire waveform Measures the highest voltage over the entire waveform Measures the lowest voltage over the entire waveform Voltage between Vhig and Vlow of a waveform The arithmetic mean over the first cycle in the waveform The arithmetic mean over the entire waveform The true Root Mean Square voltage over the first cycle in the waveform The true Root Mean Square voltage over the entire waveform ROVShoot Defined as Vmax Vhig Vamp after the waveform rising itl FOVShoot Defined as Vmin Vlow
100. unctionality 1 Power on the oscilloscope Press DEFAULT SETUP to show the result of the self check The probe default attenuation is 1X o00000o m E am m m om O O O O Figure 2 2 Scope Layout 2 Set the switch to 1X on the probe and connect the probe to channel 1 on the oscilloscope To do this align the slot in the probe connector with the key on the CH 1 BNC push to connect and twist to the right to lock the probe in place Connect the probe tip and reference lead to the PROBE COMP connectors Figure 2 3 Probe Compensation 3 Press AUTO to show the 1 kHz frequency and about 3V peak peak square wave in couple seconds Figure 2 4 3 Vpp Square Wave 4 Press CH1 two times to turn off channel 1 Press CH2 to change screen into channel 2 reset the channel 2 as step 2 and step 3 Probe Safety A guard around the probe body provides a finger barrier for protection from electric shock Figure 2 5 Oscilloscope Probe Connect the probe to the oscilloscope and connect the ground terminal to ground before you take any measurements SHOCK HAZARD To avoid electric shock when using the probe keep fingers behind the guard on the probe body A To avoid electric shock while using the probe do not touch metallic portions of the probe head while it is connected to a voltage source Connect the
101. ure 3 47 Save Rec Menu To save setups to the oscilloscope s internal memory follow the steps below For example Save setup that set waveform display type to Dots to internal memory 1 Press the SAVE RECALL button to enter the SAVE RECALL menu Press the Type option button to select setups Press the Save to option button to select Device Press the Setup option button to select No 1 Press the DISPLAY button to enter the Display menu Press the Type option button to select Dots Press the SAVE RECALL button to enter the SAVE RECALL menu SLO PO wn 92 8 Press the Save option button To Recall setup follow steps below 1 Press the SAVE RECALL button to enter the SAVE RECALL display menu 2 Press the Type option button to select Setups Press the Save to option button to select Device 4 Press the Setup option button or turn the Universal knob to select No 1 5 Press the Recall option button w Save Setup to USB flash drive Table 3 44 Save Setup to USB Flash Menu omon semn Pern Menu for the Storage Recall Type Setups settings Save setup data to USB flash Save to File h drive Figure 3 48 Save Setup Menu 93 Save Setup to USB Flash drive For example Save setup that set waveform display type to Dots to USB fl
102. utton to complete the current waveform acquisition whether the oscilloscope detects a trigger or not This is useful for SINGLE acquisitions and Normal trigger mode Signal Source You can use the Trigger Source options to select the signal that the oscilloscope uses as a trigger The source can be any signal connected to a channel BNC to the EXT TRIG BUS or the AC power line available only with Edge Trigger 44 Trigger Type The scopes have five trig Alternate Edge Trigger ger types Edge Video Pulse Slope and Use Edge triggering to trigger on the edge of the oscilloscope input signal at the trigger threshold Table 3 15 Edge Trigger Function Menu 1 2 CH CH EXT EXT 5 a Slope E2 tL With Edge highlighted the rising or falling edge of the input signal is used for the trigger Triggers on a channel whether or not the waveform is displayed Does not display the trigger signal the Ext option uses the signal connected to the EXT TRIG front panel BNC and allows a trigger level range of 1 2V to 1 2V Same as Ext option but attenuates the signal by a factor of five and allows a trigger level range of 6V to 6V This extends the trigger level range This selection uses a signal derived from the power line as the trigger source trigger coupling is set to DC and the trigger level to O volts Trigger on Rising edge of the trigger signal Trigger on Falling edge of the trigger signal Tri
103. ve its specified bandwidth Therefore the FFT spectrum can show valid frequency information higher than the oscilloscope s bandwidth However the magnitude information near or above the 24 bandwidth will not be accurate If the channel is set to DC coupling you can quickly measure the DC component of the signal by simply noting its distance from the ground symbol If the channel is set to AC coupling the DC component of the signal is blocked allowing you to use greater sensitivity to display the AC component of the signal Setting up Channels Each channel has its own separate Menu The items are set up separately according to each channel 1 Setup Channel Coupling Take CH1 for example the tested signal is a sine wave signal with DC deflection e Press CH1 gt Coupling gt AC Set to AC couple mode This will block the DC component of the input signal By Limit Yolts Div Coarse Figure 3 6 AC Coupling 25 e Press CH1 gt Coupling gt DC Set to DC couple mode Both DC and AC components of the input signal will be captured Coupling DC B Limit vots Di M 25 0ps M Pos 0 0 Figure 3 7 DC Coupling e Press CH1 Coupling gt GND Set to GROUND mode This disconnects the input signal Coupling GND Bu Limit Page 13 M 25 0ys M Pos 0 00 Figure 3 8 Ground Coupling 2 Bandwidth Limiting Take CH1 for exampl
104. ys the voltage in relation to time and tests the waveform displayed Different measurement techniques such as scale Cursor and auto measure modes are used Scale Measurement This method allows you to make a quick visual estimate For example you might look at waveform amplitude and determine that it is a little more than 100 mV You can take simple measurements by counting the major and minor graticule divisions involved and multiplying by the scale factor For example if you counted five major vertical graticule divisions between the minimum and maximum values of a waveform and knew you had a scale factor of 100 mV div then you could easily calculate your peak to peak voltage as follows 100 mV 5 divisions x 500 mV division Cursor Measurement Press the CURSORS button to display the Cursor menu The cursor measurement has three modes Manual Track and Auto Measure Manual Mode Table 3 35 Manual Cursor Menu Option Setting Description Cursor In this menu set the manual cursor Manual Mode measure Voltage Use cursor to measure voltage Type parameters Time Use cursor to measure time 75 parameters 9D CH1 CH2 Source MATH Select input signal channel REFA REFB Cur A Select this option use Universal 4 knob to adjust cursor A Cur B Select this option use Universal knob to adjust cursor B In this mode the screen di

B&K 2190D 100 MHzDigital Storage Oscilloscope

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B&amp;K 2190D 100 MHzDigital Storage Oscilloscope

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B&K 2190D 100 MHzDigital Storage Oscilloscope