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1. By making use of periodicities in the sines that are multiplied to do the transforms the FFT greatly reduces the amount of calculation required Functionally the FFT decomposes the set of data to be transformed into a series of smaller data sets to be transformed Then it decomposes those smaller sets into even smaller sets At each stage of processing the results of the previous stage are combined in special way Finally it calculates the DFT of each small data set For example A FFT of size 32 is broken into 2 FFTs of size 16 which are broken into 4 FFTs of size 8 which are broken into 8 FFTs of size 4 which are broken into 16 FFTs of size 2 Calculating a DFT of size 2 is trivial As you Can see to understand and use the FFT function it will be necessary to consult other sources for a proper insight and understanding 14 Record Length V1 0b19 2014 12 21 OPEN6022BE User Manual Page 39 The record length of a digital oscilloscope indicates how many waveform points the oscilloscope is able to acquire for one waveform record Some digital oscilloscopes let you adjust the record length The maximum record length depends on the amount of memory in your oscilloscope Since the oscilloscope can only store a finite number of waveform points there is a trade off between record detail and record length You can acquire either a detailed picture of a signal for a short period of time the oscilloscope fills up on waveform points quickly
2. Include this location in the search cuments EOS a Don t search will choose the driver to install Choose this option ta select the device driver from a list Windows does not guarantee that the driver you choose will be the best match for your hardware 5 New hardware search wizard starts to search for the driver Found New Hardware Wizard Please wait while the wizard searches a Hantek xox DERIVER 1 This wizard helps you install software for Hantek xox DRIVER 1 If your hardware came with an installation CD 2 or floppy disk insert it now What do you want the wizard to do Install the software automatically Recommended Install from a list or specific location Advanced Click Next to continue 7 The wizard has finished installing the DRIVER Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finished installing the software for Ha Hantek xox DRIVER 1 Click Finish to close the wizard V1 0b19 2014 12 21 OPEN6022BE User Manual Page 13 8 New hardware is found J Found New Hardware Hantek xex DRIVER 2 9 Found new hardware Wizard Select Install the software automatically Found New Hardware Wizard This wizard helps vou install software for Hantek 000 DRIVER 2 If your hardware came with an installation CD 42 or floppy disk insert it now What do you want the wizard to do Install
3. Replace this with a better picture if someone else can help 4 PC System Requirements Minimum PC System Requirements Laptop or Desktop PC with USB port Operating System Windows XP Vista 7 8 V1 0b19 2014 12 21 OPEN6022BE User Manual Page 8 Processor 1 GHz Memory 128 MB Disk Space 500 MB disk free space Screen resolution 800 x 600 5 General Features Dual channel Maximum real time sample rate 48MSa s Memory depth 1Mbyte channel PC memory Built in Fast Fourier Transform function FFT 20 Selectable Automatic measurements Automatic cursor tracking measurements Waveform storage on PC User selectable fast offset calibration Mathematical functions Add Subtract Multiply and Division Adjustable waveform intensity amp colors more effective waveform view User Hhterfacehseveraluser selectablelanguages 6 General Check Please inspect the instrument after unpacking for the first time Check the shipping container for damage Keep the damaged shipping container or padding material until the contents of the shipment have been checked for completeness and the instrument has been checked mechanically and electrically Check the accessories Accessories supplied with the instrument are listed in Accessories in this guide If the contents are incomplete or damaged please contact the seller Check the instrument In case there is any mechanical damage or defect or the instru
4. b Dot If selected the waveform will be displayed as broken lines c Render Normal Select to switch off Render Phosphor d Render phosphor Select to activate Phosphor Persistence e Colors Select colors of your choice for the different waveforms f Intensity Click and adjust the slider as required for brightness of the waveform g Phosphor Persistence Click and adjust slider for required intensity and to blank out shadows or ghost lines in this mode May need renaming to Phosphor Persistence Intensity Phosphor persistence is the duration the phosphor on the inside of a CRT remains glowing thus diffusing the edges of pictures and lines Older TV sets and oscilloscopes using CRT s suffered from this A digital phosphor persistence affect function is included that allows you to adjust this to get sharper and clearer waveform lines but it will be slightly dimmer as a result Quite useful when zooming a waveform 8 Grid a Turn Off On Click to toggle display of Grid b Scale Click to toggle grid sub divisions on or off Requires rename as scale is confused with scaling or sizing Scale Toggle or Scale Off On or something better c Intensity Click and adjust slider for required intensity 9 Cursor The on screen cursors let you take waveform measurements automatically on screen without having to count graticule marks Basically cursors are two horizontal lines for voltage measurements and t
5. cursors are two horizontal lines for voltage measurements and two vertical lines for time measurements that you can move around the screen A readout shows the voltage or time at their positions a None Click to remove all cursors b Interactive Click to activate and drag cursors to required points on the waveform and read Time Frequency and Voltage for each waveform on the left bottom part of screen Click None as above to remove c Lines i Enabled Click to enable the line cursor mode ii Source The cursor measurement results are displayed in the left bottom corner You can measure any of the waveforms but the color the results are displayed in will correspond with the color of the selected source in this menu for CH1 or CH2 or Math or Reference Not sure if this function has other features not working yet if not it should rather be renamed to Source Color or something better iii Cross Select Cross and on the waveform display click on the first test point hold in mouse button a solid line will be placed vertically and horizontally at the first test point and a broken line will move as you drag the mouse pointer until you release it at the second test point Time Frequency and Voltage readings will be shown on the lower left of the screen Click None as above to remove iv Vertical Select Vertical and on the waveform display click on the first test point hold in mouse button a solid line will
6. electronics 6 Rise Time Rise time is another way of describing the useful frequency range of an oscilloscope Rise time may be a more appropriate performance consideration when you expect to measure pulses and steps An oscilloscope cannot accurately display pulses with rise times faster than the specified rise time of the oscilloscope 7 Vertical Sensitivity The vertical sensitivity indicates how much the vertical amplifier can amplify a weak signal Vertical sensitivity is usually given in millivolts mV per division The smallest V1 0b19 2014 12 21 OPEN6022BE User Manual Page 38 voltage a general purpose oscilloscope can detect is typically about 2 mV per vertical screen division 8 Sweep Speed For analog oscilloscopes this specification indicates how fast the trace can sweep across the screen allowing you to see fine details The fastest sweep speed of an oscilloscope is usually given in nanoseconds div 9 Gain Accuracy The gain accuracy indicates how accurately the vertical system attenuates or amplifies a signal This is usually listed as a percentage error 10 Time Base or Horizontal Accuracy The time base or horizontal accuracy indicates how accurately the horizontal system displays the timing of a signal This is usually listed as a percentage error 11 Triggering The trigger function is to stabilize the displayed waveform by synchronizing the horizontal sweep of the oscilloscope to the selected point of the trigge
7. or a less detailed picture for a longer period of time Some oscilloscopes let you add more memory to increase the record length for special applications 15 Probes Adjustment Tool Compensation Trimmer BNC Connector Ground Clip Removable Ground spring Probe tip IC insulating cap Insulating cap Retractable hook 10 Attenuation switch 11 Identification color rings OO NAN BW DH Standard oscilloscope probes have a BNC connection to the oscilloscope and a probe with interchangeable testing tips and a ground strap with a crocodile clip These probes could have a switch to change the attenuation to X1 or X10 Some probes have only a single attenuation i e X100 and can go up to X10000 for extra high voltage testing However the 6022be Hantek should not be used for measuring extra high voltages as it is not designed to do that from a point of safety Theoretically it may work but is not recommended When setting the CH1 probe attenuation switch say to X10 then the same setting X10 must be selected in the attenuation drop down box or menu This is necessary as the 6022be Hantek oscilloscope cannot determine whether it is reading an attenuated signal or a straight signal The probe may also have a compensation adjustment close to the BNC connector which is a trimmer to be adjusted with the supplied insulated tool Ground spring Here is an example for using the ground spring that is included with the probes V1 0b19 2014
8. 100V 200V 500V 1000V 1000X Probe 20 0V 50 0V 100V 200V 500V 1 00kV 2 00kV 5 00kV 10 0kV 10000X Probe 200V 500V 1 00kV 2 00kV 5 00kV 10 00kV 20 0kV 50 0kV 100kV Range Offset level Offset increments DC accuracy Display mode ins 2ns 5ns 10ns 20ns 50ns 100ns 200ns 500ns 1us 2us 5us 10us 20us 50us 100us 200us 500us 1ms 2ms 5ms 10ms 20ms 50ms Timebase range Time Div 1 Q9ms 200ms 500ms 1s 2s 5s 10s 20s 50s 100s 200s 500s 1000s 2000s 5000s Range 10 divisions on grid Buffer Size Maximum 1M samples on PC memory V1 0b19 2014 12 21 OPEN6022BE User Manual Page 54 A 20 Selectable measurements Vbase Frequency Period Rise time 10 790 Fall time 10 90 Measurements Positive duty cycle Negative duty cycle Positive pulse width Negative pulse width Vmin Vmax Vp p Vtop Vmid Vrms Vamp Vmean Cycle mean Positive overshoot Negative overshoot Addition Subtraction Multiplication Division EFT Rectangular Hamming Hann Cosine Lanczos Bartlett Triangular Gauss Bartlett Hann Blackman Nuttal Blackman Harris Blackman Nuttal Flattop V1 0b19 2014 12 21 OPEN6022BE User Manual Page 55 Appendix C General Maintenance General Care Do not store or leave the oscilloscope where the device will be exposed to direct sunlight or moisture for long periods of time Caution To avoid damage to the device or probes do not expose them to sprays l
9. 12 21 OPEN6022BE User Manual Page 40 There are various types of probes Passive probes are used for general purpose work They are fitted with resistor capacitor components to provide a specific testing function and can allow for distortion of the signal at certain frequencies They usually have compensation adjustment consisting of a small variable capacitor for the user to match the probe to the signal Active probes consists of an amplifier built into the tip to amplify the signal Active probes thus require a power source for their operation They can be a FET probe or non FET probe and have very high impedance which does not load the device you are testing Some active probes have a built in differential amplifier with two probe tips Current probes enable you to directly observe and measure current waveforms They are available for measuring both AC and DC current They use clamps that clip around the wire carrying the current and could contain a transformer or a Hall Effect device which senses the magnetic field in the wire This makes them unique since they are not connected in series with the circuit thus causing little or no interference to the circuit Auto ignition probes are a 10000 1 passive probes with an inductive capacitance sensor These can be used to test combustion engine spark ignition secondary HT wave parameters for diagnosis of the engine ignition system This allows comparison of the trigger pulse with
10. 1x mode is going to give a 500mV signal at the node between the 909K and 100K and at the ADC input Anything more than 500mV will be clipped by the ADC This would mean with the probe in 1x mode is going to be safe from overloading the input up to 35V As per specifications maximum input should not exceed 35V and 35V in 1x which is 350V and 350V in 10x mode xv The actual input voltage is limited to a 5 0V signal That means with a 1x probe signals from 5V to 5V can be displayed with a 10x probe 50V to 50V with a 100X probe 500V to 500V and so forth Clipping will occur if the voltage at the input exceeds 5V With the proper probe you can thus measure higher voltages than 5V V1 0b19 2014 12 21 OPEN6022BE User Manual Page 19 XVI XVII XVIII V1 0b19 2014 12 21 Below is a picture showing the clipping when a signal with a peak to peak voltage of 11 5V is applied MA Open60228E v1 0 File View Channel Trigger Horizontal Cursor Display Acquire Utility Help y a JRE BAG SE Oo leasure Hama A CIEN amp C5 Q Horizontal x Time DIV 50 00ns gt Format ral Vertical V Enabled CH1 aaj Volt DIV E 2 004 Probe i CE a Enabled CH2 v Volt DIV a robe apr ri nager Mode e Top Volt Middle Volt Trigger Slope j Output 4 CH1 Frequency 7 74194MHz Peak to Peak 10 3529V RMS 3 31318V On
11. AP o O 32 V1 0b19 2014 12 21 OPEN6022BE User Manual Page 3 D A en te Re De Lis 32 e TPhosphor Persistencia ninas 32 SN CL NOS 32 al TUN OI OMA 32 a e o oat ianien 32 ez O E nn E ene eee 32 A O 32 ay NOM AA do 32 D INEN 40 coe ae ge meen en Re aN ea 32 Ch LINeS is As Se Nat dr A Aether Rise 32 10 SALE COUR o a O ee a eee La 33 11 SO AG A de nd Sane dm ie di 33 12 LOONE Re a di cai ne tt een a ee DO een cn 33 13 ZOOM O RS RSS RS Sd ie ec 33 14 RESELL ZOOM LR AR tas 33 15 AUTOS CUP di lanis 33 16 D TAILS ARS code 33 17 FUES CHE Ao ER a CT NS 33 18 HIT TOOIDA RSS Re nn A S HTC a TIES dT eee 34 19 Togele Measures ia 34 20 8 2224 235 CONTO A A ni 34 20 SPAM CR A A ea ty niesaoeeh diate wad stieetelctaaua cat ni enc del 34 21 Control Panel TUNCIONS ai 34 1 Horizontal Time bas contro Sii 34 aj BROOD tp platos ed 34 6 TimerDIWATOPAOWIT DOK risa a 34 Gye FM sli psc 34 2 NemicalFistEnannel a discs iaa 35 A Enabled box a M es sant een 35 SP o RE PE E teen ee de che cire 35 Clr Rotary Knop VEO Wis iia 35 d Volt DIV ATOBdOW i BOXE MR Mn alcia 35 Ch Meee ca ST SH gd om Ua UEDA TESTES ESET eR PT TEE te tae TEPER 35 Te AC COUDIE aca a A artnet nine te dde tele 35 er VE A nee ne a Oe nee ere ee 35 3 Ventical ecoa Channel ui scot A 35 a Enabled DO a tias a 35 Dr DrODAOME DO ete elias 35 cr Rotary knob T L a a ed led 36 dh Volt DIV dropdown DOK adas 36 POP e o A O 36 V1 0b19 201
12. OPEN6022BE User Manual Page 34 Displaying Lissajous patterns You may have to scroll to see any parts outside the display area 2 Vertical First Channel Top controls for first channel of oscilloscope a Enabled box Check to enable this Channel b Dropdown box Select which waveform to display on the first Channel either CH1 CH2 Math or Reference c Rotary Knob yellow Turn click drag scroll to correct settings d Volt Div dropdown box Ranges from 20mV Div to 10V Div e Probe Select the probe attenuation setting to match the setting on your probe Probe settings available 1X 10X 100X 1000X 10000X f AC Couple If not checked DC coupling in service Displays both AC and DC voltage components If checked AC coupling in service Displays only AC voltage component The AC coupling on the OPEN6022BE is only software controlled The Hantek 6022be device does not have a physical capacitor switched in out in series with the input to block the DC voltage For true AC coupling with the added safety factor this brings about it is advisable to use a separate physical capacitor The value of this capacitor must be calculated w r t the frequency of the signal and have a voltage limit which is much higher than the signal being measured Normally you will always use the scope with the input coupling set to DC This will allow you to measure true DC voltages and also see any AC components that are present D
13. and FFT as selected You can export to the following formats bewf 6022be Waveform data txt Text Waveform data bmp Bitmap Waveform Image jpg jpeg JPEG Waveform Image xls Excel Waveform data not available yet Currently exporting more than one channel or source is only supported for image exports Richard will modify the data formats for exporting more than one source Right now you have to export them separately c Print Click to print the waveform You are presented with a clear preview where you can select which waveforms add a header name to the printout and add notes You can change the waveform colors before clicking on Print d Exit Close the program 2 View a Toolbar Click to enable or disable the display of toolbar b Controls Click to enable or disable the display of right controls panel c Measure Click to enable or disable the display of left measure selection panel d Measure output Click to enable or disable the display of bottom measure results panel e Debug Information Click to enable or disable the display of debug information in left top corner f Full Screen Click to enable Full Screen display without any toolbars controls measure display or measure output There are 3 ways to go back to the normal display 1 Push the ESC key on your keyboard or 2 right click on the display and select Window Mode or 3 click the small top left hand icon and select Restore T
14. and many of you may already be familiar with it but found it helpful to have it all together The 10 attached screenshots are experimental results obtained by scoping the output of my Function Generator They are intended to help support the write up Note that the Measurement Output provided by the 6022 is incorrect in some of these screenshots specifically 1 2 8 9 10 So pay attention to the file names the actual scope settings and read the displayed signal values yourself V1 0b19 2014 12 21 OPEN6022BE User Manual Page 47 1 50mV Div 400mVpp baseline inside 6 div off ctr Channel Trigger Horizontal Cursor Display Acquire Utility He Bs ENG SES OCOBERERRBOERE HHO Horizontal Time DIV 50 00us Format pr J Vertical V Enabled CH1 Volt DIV 50 0mV z Probe xi Enabled CH2 Trigger Trigger Mode Edge zA y Trigger Sweep Automatic D Trigger Source Channel One X Trigger Slope Rising Output 4 CHl Frequency 10kHz Minimum Volt 100 392mV Maximum Volt 401 569mV Peak to Peak 501 96 1mV 2 50mV Div 400mVpp baseline outside 6 div off ctr M Open60228 v1 0 QE EG SES OCOBRBRE BORE HHO ER Output x a ni Frequency 10kHz Minimum Volt 100 332mv Maximum Volt 50 1 96 1mV Peak to Peak 602 353mv 3 100mV Div 800mVpp baseline inside 2ctr div EA Open60228E v1 0 beta PRI eS File View Channel Trigger
15. baseline settings within the two center divisions of the graticule Signals that require a baseline setting outside this range to fit in the screen will appear clipped this is normal since part of the signal is ignored by the ADC s encoder There are also some V Div settings that zoom out In this case it isn t possible to obtain full screen displays even with the baseline set at the center of the screen The reason is that although the ADC s FS range is 1024mV as usual fewer than 8 graticule divisions are needed to display a signal of this amplitude As a result signals below the full screen range 8 graticule divisions but above the FS range will appear clipped this is normal since part of the signal is ignored by the ADC s encoder The illustration below shows an example of this behavior HA Oper60228E v1 0 beta PRE File View Channel Trigger Hoaorizortal Cursor Display Acquire Utility Help A AU Ths ET SES CC0SSSG0UNBEETQ Meoaure x PP 7 4 4 chi Horizontal p Here the signal amplitude is 11 5Vpp However at the ADC s input the 2V Div setting is electrically identical to a 1V Div setting In both cases the signal at the tip of the probe is divided by 10 before being applied to the ADC s input As a result a 10Vpp signal appears as a 1Vpp signal at the ADC s input As we know a signal above 1024mVpp will exceed the FS range so an 11 5Vpp signal at the tip of the probe 1150mVpp at the ADC s input will
16. ceed ce ect PE O ee en ate 23 BI CONTO Sa eee 23 Er Messe A sid nn 23 dl Measure Output it 23 e Debug Into Matos rodado 23 A E A q em a 23 By Ena eli 23 CR ie AAEE T AAE TA 23 D PAD E T E 24 A A E 24 D RETO O rn eno Ty Mee RRM Peed ery ere nen ne Mer arma eet aE Ory rer 25 A Trepe ates dissec Ne se UP nt du 26 Gli LL de N 26 V1 0b19 2014 12 21 OPEN6022BE User Manual Page 2 el OE A O O A eee ere 26 d MS A II A O TS 26 D HOZ tal da 26 A A A T Ouh neo 26 DE EOC A PP a RD 0 D a sae a Dodo delle 27 AA A A 27 al NOM AAA Ne ne te 27 IS A a a ue PO 27 A AS de Nat dr ne Rise Se 27 o anne A Po De Li 28 AN AV ORAN cis 28 DI NES lo OE OTE o A E 28 A S 29 A LE cheers ahaa dave sain ov cata neleritea tig ane dcom eee a eee 29 A O A ieee 29 A O Se duet ca et dc 29 d ZOOM OURS ren anne ln doser rca 29 er ZOOM unta occur olcicala 29 D o ARS Net ain ons 29 2 D MO Mode ENS NA SR ii 29 Oy TT A a Lo en Or nl 29 a Zero Ol Sel Cabras da nie ie 30 IS 30 cr Detault Sets A A di aie 30 10 RLE ENA AE EAL E E E T EA die 30 GE COM ENE a a tai 30 D ADON e E AT 30 20 Toolbar Shortcut menu ICONS iii ii 30 A a A A 30 ZY ORC OU TCO si ea dio oia 30 A cast or o II O A TS 30 A AS 31 By R f rence Wave Ma IA A era tie 31 6 Fast EFOUTI RT ANS ONE tata ak 31 PM SAA O A ou de aa 31 a A A tectonics tees 32 A RAR Nes Dr ae REE ee TE 32 cy Render Not Mali e E 32 di Render ono Sl OMe na a RE Pa da ia ae of ce 32 E COO
17. channels iv Intensity Click and drag slider to adjust waveform brightness V Phosphor Persistence Click and adjust slider for required intensity and to blank out shadows or ghost lines in this mode May need renaming to Phosphor Persistence Intensity Phosphor persistence is the duration the phosphor on the inside of a CRT remains glowing thus diffusing the edges of pictures and lines for a short period Older TV sets and oscilloscopes using CRT s suffered from this A specific type of CRT was available with longer or shorter persistence periods A digital phosphor persistence affect function is included that allows you to adjust this to get sharper and clearer waveform lines The result may be slightly dimmer but appear more stable and sharper Quite useful when zooming a waveform b Grid i Turn off on Click to toggle display of main grid zero volt axis and center vertical axis ii Scale Click to toggle grid sub divisions on or off Requires rename as scale may be confused with scaling or sizing Scale Toggle or Scale Off On or something better iii Intensity Click and adjust slider for required intensity V1 0b19 2014 12 21 OPEN6022BE User Manual Page 28 iv Clear Clear option to clear the screen good for Phosphor mode 8 Acquire A digital oscilloscope has the ability to store waveforms for later viewing There are two buttons in the toolbar that allow you to manually stop and start the acqu
18. of any display that is not removed when the channel is turned off c Math vi Two waveforms are used to calculate and display a third waveform by adding subtracting multiplying or dividing Turn on Turns on and display the Math channel waveform Source A Select the first waveform A to be used in the calculation either CH1 CH2 or Reference Source B Select the second waveform B to be used in the calculation either CH1 CH2 or Reference Operate Select the Math function to be performed with the two waveforms A and B Select one of A B A B AxB orA B Volt Div Select the voltage division range for the displayed waveform Voltage ranges available 20mV 50mV 100mV 200mV 500mV 1 00V 2 00V 5 00V 10 00V Probe V1 0b19 2014 12 21 OPEN6022BE User Manual Page 24 Select the probe attenuation setting to match the setting on your probe Probe settings available 1X 10X 100X 1000X 10000X vii Reset Reset the displayed waveform to the Zero position viii Invert Invert the displayed waveform of the Math channel ix Clear Clear the channel of any display that is not removed when the channel is turned off d Reference i Turn on Turn on the reference waveform display ii Volt Div Select the voltage division range for the displayed waveform Voltage ranges available 20mV 50mV 100mV 200mV 500mV 1 00V 2 00V 5 00V 10 00V iii Reset Reset the displayed waveform to the Zero position iv Cl
19. of times the signal repeats itself in one second i e cycles per second This repeating signal also has a period this is the amount of time it takes the signal to complete one cycle Period and frequency are reciprocals of each other so that 1 period equals the frequency and 1 frequency equals the period 4 Voltage Voltage is the amount of electric potential between two points in a circuit One of these points is usually ground zero volts but is not always the case You may want to measure the voltage from the maximum peak to the minimum peak of a waveform referred to as the peak to peak voltage The word amplitude commonly refers to the maximum voltage of a signal measured from ground or zero volts Thus for example a waveform can have an amplitude of one volt and a peak to peak voltage of two volts 5 Phase Phase is best described by looking at a sine wave Sine waves are based on circular motion and a circle has 360 degrees One cycle of a sine wave has 360 degrees in a straight line Using degrees you can refer to the phase angle of a sine wave when you want to describe how much of the period has elapsed Phase shift describes the difference in timing between two otherwise similar signals In following figure the waveform labelled A is said to be 90 out of phase with the waveform labelled B since the waves reach similar points in their cycles exactly 1 4 of a cycle apart 360 degrees 4 90 degrees Phase shifts are common in
20. points with straight lines iii Sin x x Or just called Sine interpolation which connects sample points with curves Sin x over x interpolation is a mathematical process where points are calculated to fill in the time between the real samples Using this process a signal that is sampled only a few times in each cycle can be accurately displayed g Demo mode From here you can run the Demo Mode directly Inputs from the probes are then ignored If you select Demo Mode you will be presented with a window in which you can select the type of waveforms and parameters Once in Demo Mode most of the controls and menus can be used as normal to change the display To go back to normal working mode open menu item Acquire click Demo Mode and select Exit Demo Mode 9 Utility V1 0b19 2014 12 21 OPEN6022BE User Manual Page 29 a Zero offset Calibration You can calibrate the oscilloscope after it has been on for at least 20 minutes to insure it has obtained it operating temperature Both channels need to have probes set to X1 and connected to the ground lug on the front face panel i Import Calibration Data You can import saved calibration data by loading the saved file cal_data becl ii Export Calibration Data You can export your calibration data by saving it in a file cal_data becl iii Calibrate You can click Calibrate and the calibration function will run and give you a successful completion notice when completed b Au
21. the HT pulse to the spark plug The probe clip does not connect directly to the spark plug but is clipped around the high tension wire and picks up the induced signals V1 0b19 2014 12 21 OPEN6022BE User Manual Page 41 Differential Probes have a significant difference in that the probe tip has two inputs a positive or non inverting and a negative or inverting input and are like two probes in one Instead of measuring a test point in relation to a ground point like single ended active probes differential probes measure the difference in voltage of a test point in relation to another test point The tradeoffs are that the probe is more bulky is more expensive than two passive probes less dynamic range and requires the use of an external power and control module 23 Application Examples 1 Basic Measurement Technique Basic Measurement Technique Trigger level Ps gg Ground level 0 0V Marker Trigger level Marker Vertical Volts div gt Setting Trigger level Timebase horizontal Setting Period T 4 divisions x1 us div 4 us Frequency 1 T 250 kHz V p p 6 divisions x 1 V div 6V p p V max 3 divisions x 1 V div 3 V V min 3 divisions x 1 V div 3 V This picture will be updated once V Min works properly in demo mode The frequency of a wave is the number of times per second that a waveform repeats its shape We cannot directly measure the frequency on the oscilloscope but we can measure a c
22. trained in the correct usage thereof Avoiding Fire or Personal Injury Do not use this device where the equipment will form a common ground to the mains power when connected for testing Meaning the ground on the mains power plug is grounded to the device under test The PC used to run this DSO also has the mains power grounded to its ground and the USB port ground The DSO powered by a separate power supply with its own ground now connected in common to the PC via the USB connection Ensure that your mains supply is safe and has a recently tested good ground and that the approved ground leakage units are fitted that have also been tested recently Also note that the AC mains power neutral is actually connected to ground on the supply side but a potential difference could exist between your mains ground and the neutral Some AC to DC adapters which do not test any continuity between the AC input and the DC output used to power the DSO may cause the DSO PC drivers to fail immediately when connecting the ground clip of the probe to another device powered also powered by an isolated AC adaptor with the DSO connected to a Desktop PC instead of a laptop running on batteries Note Removing the oscilloscope grounding connections either by using a two pronged plug or using an isolation transformer to power the scope is dangerous practice The whole metal enclosure of the oscilloscope can be at line voltage when one connects the probe to
23. 12 21 OPEN6022BE User Manual Page 16 Input a signal to a channel on the oscilloscope The oscilloscope is equipped with dual channels and has a built in signal generator that puts out a 2V P P square wave at 1 KHz on an output lug on the front panel Input a signal in the following steps Set the attenuation switch on the probe to 10X and connect the probe to the oscilloscope CH1 BNC signal input Align the slot in the probe connector to the pins on the BNC connector of CH1 and insert turn right to lock the probe connector in place Set the CH1 probe attenuation of the oscilloscope to X10 on the PC The default is X1 connector See photo above A square wave will be displayed Approximately 1 kHz 2V peak to peak Test CH2 in the same way by repeating steps 2 and 3 14 Self Calibration The self calibration routine lets you optimize the oscilloscope signal path for maximum measurement accuracy with reference to the zero setting You can run the routine at any time but should also do so if the ambient temperature changes by 5 C or more For accuracy power on the oscilloscope and wait about twenty minutes to ensure it is warmed up before calibrating Then access the Toolbar Utility gt Calibrate option and follow the directions on the screen The software will remind you to connect both probes to the ground reference lug The self calibration routine takes several minutes to complete but does not give a comp
24. 4 12 21 OPEN6022BE User Manual Page 4 A ne A D fie laine 36 SR dp tdt delata 36 A Trigger Dropdown DOXES ic 36 ak Tesei cid 36 DI Trigger MOE A eet 36 A o HR ne ean ee nee sen ne eee ee eee ee ne eee 36 yr UNIS OTS A A 37 ek WISER Slope us Ada 37 22 Common Terms Explained nina 38 A E de E Eee ne he 38 DA VS AOL ASS een Re ee ee nee eee E ee ee ere eee 38 3 Fr qu nev and PERO iia adi 38 A A O ue een ea Du 38 DB AN Sd Ne loue al Ur de AR alanine ieee ate Cet 38 A nn A 38 Ty Vertical Sens Vian diana 38 SL Sweep opens 39 9 CAIN ACCUTAC VAS MR ec dun 39 10 Time Base or Horizontal ACCUraCy ui Amine Antist 39 LOTIR A er ene eee ee ne ee ee ee ae 39 12 ADC Resolution Or Vertical Resolution ss 39 13 a PA ASLIE T I E EE EE A E EEE AET EEE SE E EIEEE A aimee 39 14 Record Lent th eues n HR nn et oin do Rite 39 15 POESIE ne an M Den din ne 40 23 Application EXamMpIes iniciando 42 1 Basic Measurement Technique via aan ane laetitia 42 2 Simple Messe mental 42 3 Capturing a Single ShOt eN 43 AN EN APICAL 0 a rra eee els 44 5 Taking Cursor Measurements cscccccccsssseccccceessecccceeeseecceseeueccecseuesecceeseuenecceseagnaeees 46 6 Automotive Tests and Measurements sise 47 TY SOoM 6022 Pecularities Res re die 47 24 APPENA EEE 54 Appendix A Specifications for Hardware Hantek 6022BE Oscilloscope 54 Appendix B Specifications for Software OPEN6022B
25. AC circuitry under test The safest method is to connect the circuit one wants to test i e a switching power supply via a 1 1 isolation transformer and use the oscilloscope as normal with its earth lead connection intact This does not really reduce the danger as the device under test now has a floating ground and that metal part can be dangerous if touched Better is to run the device under test from batteries if possible in any way When working with high voltages there is always a high level of danger involved either electrocution or blowing up equipment if the proper steps are not followed The following are listed as the various methods that can be used with caution and prior knowledge some are safer than other o A mains isolating transformer to power the device under test or o Powering the device under test by batteries or V1 0b19 2014 12 21 OPEN6022BE User Manual Page 7 2 o A laptop running on batteries Not connected to AC adapter or o A laptop and AC adapter with isolated ground Ground lead not connected to secondary ground or o A USB isolator it has opto isolators for data and an isolated DC DC for power Connect and disconnect properly Do not connect or disconnect probes or test leads while they are connected to a voltage source Connect the probe to the oscilloscope before connecting the probe to the circuit under test Disconnect the probe input and the probe reference lead from the circuit under test before d
26. BE software is developed further 1 Additionally you need to install the latest Hantek6022BE drivers for your Windows version as per previous point 9 If you already have the latest factory software working then the latest drivers are already installed Optionally create a new folder called Open6022be in your Program Files folder on the C drive Copy the compressed file Open6022BE_1_0_Binary rar or latest version to this folder and extract the compressed files Right click on Open6022BE exe and select Send to Click on Desktop create shortcut and a shortcut will be placed on your Desktop Run OPEN6022BE by clicking on this shortcut To uninstall just delete the folder and shortcut created above 12 Probe Compensation Adjustment Probe compensation adjustment should be performed whenever attaching a probe to any input channel for the first time to match the characteristics of the probe to the channel input From the Probe menu select attenuation 1 10 for both channels Set the switch to X10 on both probes and connect them to CH1 and CH2 of the oscilloscope Attach the probe tip to the Reference signal output lug on the front face of the Oscilloscope and the reference ground lug to the probe crocodile clip select CH1 and CH2 and then press the AUTO SET button in the menu of the toolbar to give the best display of the reference signal or set manually as required V1 0b19 2014 12 21 OPEN6022BE User Ma
27. C coupling allows you to observe both DC and AC components Usually you will only select AC coupling for a specific reason If you have an AC component present on the DC signal say a ripple you will not be able to measure or see this ripple voltage separately By selecting AC coupling you will now block and remove the DC voltage which allows you to properly view the AC component of the signal AC coupling allows you to observe AC components only g Invert Check this box to invert the waveform display on the first channel 3 Vertical Second Channel Top controls for second channel of oscilloscope a Enabled box Check to enable this Channel b Dropdown box Select which waveform to display on the second Channel either CH1 CH2 Math or Reference V1 0b19 2014 12 21 OPEN6022BE User Manual Page 35 c Rotary knob green Turn click drag scroll to correct setting d Volt Div dropdown box Ranges from 20mV Div division to 10V Div e Probe Select the probe attenuation setting to match the setting on your probe Probe settings available 1X 10X 100X 1000X 10000X f AC Couple If small box not checked DC coupling is in service Displays both AC and DC voltage components If small box checked AC coupling is in service Displays only AC voltage component The user selectable AC coupling on the OPEN6022BE is only software controlled The Hantek 6022be device does not have a physical capacitor switched in
28. E Application ccooocccnconocnnnonaconnss 54 Appendix EsGeneral Malnten ante aa 56 NOE ts o ts o dd latins np 57 V1 0b19 2014 12 21 OPEN6022BE User Manual Page 5 V1 0b19 2014 12 21 OPEN6022BE User Manual Page 6 1 This Manual This manual has been compiled to support the free OPEN6022BE software for the Hantek 6022BE Digital Storage Oscilloscope Some contents are extracts from the original Hantek manual as well as input from forum members on the www eeblog com website and other general Internet sources Here you can find a thread dedicated to the Hantek 6022BE DSO http www eevblog com forum testgear hantek 6022be 20mhz usb dso Quite a substantial number of additional features and enhancements have been added that makes this oscilloscope a much more user friendly tool thanks to Richard Krupskis initiative and his hard work This is a live document which can be updated and changed as the software is improved 2 General Safety Read the following safety precautions carefully before operating the DSO to avoid any personal injuries or damage to the device itself or any other devices connected to it To avoid potential hazards use the DSO only as specified by the supplier The information below is to make the user aware of the hazards and danger and is not considered a complete and accurate guide for use in dangerous situations The user should consult other sources for more detailed and complete information or should be
29. Hantek Hantek 6022BE Oscilloscope Unofficial Open6022BE User Manual Software written by Richard Krupski Manual compiled by Andr le Roux V1 0b19 2014 12 21 OPEN6O22BE User Manual Page 1 Contents A A ne tend ibe cases ini donne 7 Ze General Sale sn tii 7 3 OVER iaa 8 A PCSystem ReQquITeMents mini ad 8 5 gt General Features iaa 9 6 G neral CHECKS AAA A A O 9 Te ACCOSSONMO ini sieste ui soie tnton eee tutos dias 9 8 Connections ANG Indications sssssseosesssesessosessssssosesessosseosessssoeseosesessoeoe 10 9 Installing Hantek6022BE Software sessesesessesessecescecessecesosoecsscecssoessesesseseo 11 10 Driver instalation sssrin aE NEK ENERE ETEEN EAA 12 11 Installing OPEN6022BE Software scscscsccscsceccccscsccccccscsceccccscncescccecsceces 15 12 Probe Compensation Adjustment ccsceccccscsceccccscsccccccscnceccccecncescccecsceces 15 13 FUNCTION al COCK N ee 16 A o E E 17 15 Limitations and things to be aware Of ssesessesessececsecesosoecescesesoesesoecessececse 17 16 DEMO MOC ii T T A OTRA 21 17 GPS Function used presently for lack of a better name 22 13 Waverorm Context Area Roda 22 19 TOO Men ITEMS ss ne encens ones A 23 1A EE EREA E AE EA ea eae 23 a A ee rea Pert E es ne ee ie a 23 DJ EXPO Le Rr ee A 23 Ol PE aena aaa aaa a io dei 23 a SR A dou eared eetel 23 D Nea ceed en hort ees esc eases dee 23 Eile MOOS coche
30. Horizontal Cursor Display Acquire Utility Help As ER SES COBEBERBOEE HHO Horizontal Xx Time DIV dl 50 00us v Format YT Y Vertical V Enabled CH1 A Volt DIV 100mV al E Probe x1 Enabled CH2 Trigger Trigger Mode Edge gt Trigger Sweep Automatic z Trigger Source Channel One y Trigger Slope Rising X Output x 4 CHi Frequency 10kHz Minimum Volt 298 039mV Maximum Volt 501 96 1mV Peak to Peak 800mV V1 0b19 2014 12 21 OPEN6022BE User Manual Page 48 4 100mV Div 800mVpp baseline outside 2ctr div Channel Trigger Horizontal Cursor Display Acquire Utility Help ARs BERG SES 000806 EE TO Horizontal Time DIV 50 00us Format YT Vertical y Enabled Volt DIV 100mv Probe Enabled CH2 Trigger Trigger Mode Edge z Trigger Sweep Automatic v Trigger Source Channel One Trigger Slope Rising X Output 4 CH1 Frequency 10kHz Minimum Volt 254 118mV Maximum Volt 501 96 1mV Peak to Peak 756 078mV Channel Trigger Horizontal Cursor Display Acquire Utility Help EE ARPA A O O MERC Horizontal Time DIV 50 00us Format Tm Vertical V Enabled CHi A Volt DIV 200mV v Probe Enabled CH2 Trigger Trigger Mode Edge Trigger Sweep Automatic Trigger Source Channel One Trigger Slope Rising Output 4 CH1 Frequency 9 61538kHz Minimum Vo
31. N6022BE User Interface Reference 1 Icon to restore full screen to normal window 2 Main Menu 3 Toolbar icons 4 Zoom level A better position for displaying zoom level could be an improvement 5 Scrolling waveforms 6 Active trigger source name and position voltage of trigger 7 Hide Controls 8 Horizontal Control voltage settings 9 Vertical Control Ch1 timebase settings 10 Vertical Control Ch2 timebase settings 11 Trigger settings 12 Trigger markers 13 Displays Sample rate 14 Measure output for each channel Ch1 CH2 Math and Reference 15 Displays the main time base setting 16 Displays the CH1 and 2 trigger information of turned on channels 17 Displays the CH1 amp CH2 information of turned on channels 18 The markers show the reference points of the displayed waveforms If there is no marker the channel is not displayed 19 Measure results type select for each channel Ch1 Ch2 Math and Reference 20 Select Entire Capture or only Visible Capture of waveforms 21 Select channel to set measure details 22 Hide the measure panel Insert new picture here of final GUI with labels when software is complete 16 Demo Mode There are two ways to run Demo Mode 1 If you run the software without any oscilloscope connected to the USB port or the drivers are not installed it will not detect the device and will offer to run in Demo Mode or 2 you can also change from normal working mode to Demo Mode under the menu ite
32. Now select Load and the reference waveform is displayed 6 Fast Fourier Transform The Fast Fourier Transform FFT can be used to display the component frequencies in a signal Consult the Internet for more information on this subject Click the FFT menu button and the Fast Fourier Transform window will open You can now select the settings for your FFT waveform Source Select either Ch1 CH2 Math or Reference as the source Volt Div Select the Volt Div scale 20mV 50mV 100mV 200mV 500mV 1 00V 2 00V or 5 00V Render waveform as Native Lines Polyline or Polygon Window Select window type Rectangular Hamming Hann Cosine Lanczos Bartlett Triangular Gauss Bartlett Hann Blackman Harris Blackman Nuttal or Flattop Frequency Bins Select amount of Bins to be used 256 512 1024 2048 4096 8192 or 16384 Show Fundamentals Check this box to display the fundamentals Begin Peak Threshold Click and hold up or down button for required setting End Peak Threshold Click and hold up or down button for required setting Position Drag slider to position the resulting waveform where you want it Color Change the color from the default red of the resulting waveform Scale in dB Check this box if the scale is to be displayed in dB Now click the start button to compute and display the FFT waveform 7 Waveforms V1 0b19 2014 12 21 OPEN6022BE User Manual Page 31 a Line If selected the waveform will be displayed as solid lines
33. Trigger Mode Edge Trigger Sweep Automatic Trigger Source Channel One Trigger Slope Rising Output 4 CH1 Frequency 10kHz Minimum Volt 4 01569V Maximum Volt 5 08235V Peak to Peak 9 09804V 9 5V Div 8Vpp same setup as 1Vpp screenshot vannel Horizonta Cursor Displa Acquire Utilit Help BPS EDG SSH OCOBEBREGBOESEEHO Horizontal X Time DIV 50 00us Format irl Vertical V Enabled oi is Volt DIV 5 00v 4 lg Probe x1 y Enabled l2 X Trigger Trigger Mode Ede gt Trigger Sweep Automatic m r Trigger Source Channel One z Trigger Slope Rising v Output 4 CH1 Frequency 41 6667kHz Minimum Volt 10 0392V Maximum Volt 5 01961V Peak to Peak 15 0588V V1 0b19 2014 12 21 OPEN6022BE User Manual Page 50 H10 10V Div 8V same setup as 1Vpp screenshot manel 10210 ls sinosmoH 1 annmer wsiV 3 E Y ae spent la tuqiuO HHD SHA yonsups A VP8T0 0S iloV muminiM V 0880 8 iloV mumixsM Veotr eS 1839 of A689 AD9288 Analog Input The analog input Ain range is approximately 1Vpp centered at Ain s bias voltage This is called the FS range which means full scale or full span range The exact value of the FS range is 1024mVpp The ADC s encoder will ignore the portion of input signals above 512mV or below 512mV relative to An s bias voltage As a result an
34. You get a clear preview and can select which waveforms add a header name to the printout and add notes You can change the waveform colors before clicking on Print V1 0b19 2014 12 21 OPEN6022BE User Manual Page 30 4 Math Functions Click the button to open the window to enable the Math function you want to use add subtract multiply or divide Source A B can be CH1 CH2 or reference 5 Reference Waveform Click the R menu button and the Load Reference window will be displayed with 2 tabs From File and Function Generator The tab From File gives you 3 choices 1 The option to select Import From Waveform File which is a data file bewf from a saved location on your PC or media or 2 select From Function Generator Static or 3 select From Function Generator Dynamic Example You want to display a reference waveform to compare to another waveform being measured Select e g From Function Generator Static The Load Reference window opens the tab Function Generator which allows you to preselect the settings of your Reference Waveform Function dropdown box to select the waveform you want None Random Square wave Artificial Square Wave Pure Sine Wave Sawtooth Ram or Triangle Trigger off dropdown box to select the trigger source Channel 1 Channel 2 Math or Reference Start Freq kHz Stop Freq kHz Max Voltage V Min Voltage V Duty Cycle Vert Noise mV Horiz Noise mV Phase Offset
35. anges on two channels for the signals you want to display There are six possible ways to select the range you need to display your input signal properly Any one method as per your preference is good 1 Click Autoset and the oscilloscope will automatically select the best setting for the best display of your waveform or 2 you can click the large rotary knob and then use the mouse scroll wheel to scroll through the ranges or you can click the position the knob should turn to or you can drag the knob around with the mouse pointer or you can click the dropdown box and select the range you want to use or you can select the Menu items Channel or Horizontal and go to Time Div or Volt Div then just select the range you want et A X in right hand corner above controls Click to close the right hand control panel By going to toolbar menu View gt Controls you can display the Control Panel again 1 Horizontal Time base controls The horizontal time base has a range of 1 00nS per division to 5000 seconds per division a Rotary Knob blue Turn click drag scroll to correct range settings b Time Div dropdown box Ranges from 1 00nS to 5000 Seconds to select correct range setting c Format The format dropdown box allows you to select c YT Normal use for displaying waveforms d XY All Displaying Lissajous patterns You will see the complete display without the need for scrolling e XY Visible V1 0b19 2014 12 21
36. appear clipped Although this is normal it may be confusing to the user since in general it would be reasonable to expect an 11 5Vpp signal to display properly within a 16Vpp full screen range 6022 Attenuator The attenuator circuit illustrated below consists of an operational amplifier U11 7 with switchable gain resistors There are 4 possible gain levels which combined with zoom in or zoom out provide 9 different V Div settings The signal at the tip of a X1 probe is divided by V1 0b19 2014 12 21 OPEN6022BE User Manual Page 52 10 by R27 17 and R31 21 before being applied to the attenuator s input In the case of a X10 probe the division factor is 100 due to the additional IMA resistor within the probe The chart below the circuit diagram shows the characteristics of each V Div setting The highlighted settings don t use zoom in or zoom out Hantek 6022BE Front End Vin lt 5 0V 253 Vin lt 5V Equivalent Analog Circuit Vin lt 2 5V X100 probe has no switch 3rd row refers lt 5V on x1 V x 1 lt 5V lt 50V on x10 V x0 1 lt 5V lt 500V on x100 V x 0 01 lt 5V Vin must always be less than 5V otherwise clipping will be applied y Probe x5 Vin lt 1 0V x10 Vin lt 0 5V 5v 74HC4051 Vout Ve 1 R 1KOh Analog MUX ONE Ve Vin 10 V Div Setting Zoom Attenuator Vo
37. art of waveform to trigger Use the dropdown boxes to set the different trigger settings for displaying the waveform b Trigger mode Can only select Slope c Trigger Sweep Select sweep mode i Auto Auto mode causes the oscilloscope to sweep even without a trigger If no signal is present a timer in the oscilloscope triggers the sweep This ensures that the display will not disappear if the signal drops to small voltages It is also the best mode to use if you are looking at many signals and do not want to bother setting the trigger each time ii Normal V1 0b19 2014 12 21 OPEN6022BE User Manual Page 36 In normal mode the oscilloscope only sweeps if the input signal reaches the set trigger point Otherwise on a digital oscilloscope it is frozen on the last acquired waveform Normal mode can be disorienting since you may not see the signal at first if the level control is not adjusted correctly Hence in normal mode when trigger events are missing there is no new redrawn trace Single In one shot mode the scan starts only once at first trigger event After that it must be manually restarted by using Acquire Start for another start event So in single mode a trace is drawn just once at first trigger event and the length of scan time depends on time base setting d Trigger Source Select the specific trigger source you want to use CH1 CH2 Math or Reference This selected source will then be the active trigger and will
38. be displayed in the right hand top corner together with the trigger level ES UE ES LL e Trigger Slope Select the trigger slope you want to trigger at Rising or Falling V1 0b19 2014 12 21 OPEN6022BE User Manual Page 37 22 Common Terms Explained 1 Bandwidth The bandwidth specification gives you the frequency range in which the oscilloscope accurately measures As signal frequency increases the capability of the oscilloscope to accurately respond decreases By convention the bandwidth tells you the frequency at which the displayed signal reduces to 70 7 of the applied sine wave signal This 70 7 point is referred to as the 3 dB point a term based on a logarithmic scale 2 Sample Rate On digital oscilloscopes the sampling rate indicates how many samples per second the ADC or Vertical Resolution and therefore the oscilloscope can acquire Maximum sample rates are usually given in megasamples per second MS s The faster the oscilloscope can sample the more accurately it can represent the fine details in a fast signal The minimum sample rate may also be important if you need to look at slow changing signals over long periods of time Typically the sample rate changes when changes are made to the Time div control to maintain a constant number of waveform points in the waveform record 3 Frequency and Period A repeating signal repeats has a frequency This frequency is measured in Hertz Hz and equals the number
39. be placed vertically at the first test point and a broken line will move as you drag the mouse pointer until you release it at the second test point Time and Frequency readings will be shown on the lower left of the screen Click None as above to remove v Horizontal V1 0b19 2014 12 21 OPEN6022BE User Manual Page 27 Select Horizontal and on the waveform display click on the first test point hold in mouse button a solid line will be placed horizontally at the first test point and a broken line will move as you drag the mouse pointer until you release it at the second test point Voltage readings will be shown on the lower left of the screen Click None as above to remove 7 Display a Waveform i Render a Normal Select to switch off Render Phosphor The way this is in the menu is causing confusion and members want the Phosphor to be changed to Phosphor persistence b Phosphor Select to enable Phosphor Persistence display Suggestion A simpler method would be to remove Render from the Display menu and rather couple On Off to the existing Phosphor Persistence which is otherwise greyed out thus also removing the greyed out function or step ii Type a Line If selected the waveform will be displayed as solid lines b Dots If selected the waveform will be displayed as broken lines iii Colors Click this and select different colors for the waveforms on CH1 CH2 Math Reference and XY
40. ce nice thing about a schematic like this is it makes plain the fact that the 6022BE unlike most scopes that have 3 or 4 decades of Sensitivity settings has only one decade l e 100mV div to 1V div That s one area they saved money by compromising on along with the limited sample rates and no real triggering Normally you see anywhere from 10 mV 5V div to 1 mV 10V div The settings below 100mV div are just zoomed e g like an Agilent with 4 mV div claims 1 mV div by zooming Since at that level the FS range of the ADC is 1 024 mV and it is 8 bits 256 levels that means the LSB is 4 mV So it s not surprising to see noise on the 20 mV div setting since in addition to real noise that shielding and proper grounding can help minimize the uncertainty present in the LSB will result in jitter of 4 mV all by itself Which becomes more visible the further in you zoom With a USB scope remember one very important thing Your 6022BE scope shares a ground with the USB port which means you share the ground with your computer which means the monitor which means well your dish washer your refrigerator May suggest To ensure isolation use a laptop on battery NO external monitor and NO wired network Or an isolation transformer Also see Some 6022 Peculiarities in the Application Examples section for more detail OPEN6022BE User Manual Page 20 Hantek OPEN6022BE User Interface Menu amp Control functions OPE
41. ear Clear the channel of any display that is not removed when the channel is turned off v Import To load a Reference Waveform go to Channels gt Reference gt Turn On A new straight line signal only if settings are None in the Light Blue default color of the Reference Channel will be displayed You need to set it up to your requirements Go to Channel gt Reference gt Import The Load Reference window opens and the tab From File gives you 3 choices 1 The option to select Import From Waveform File which is a data file bewf from a saved location on your PC or media or 2 select From Function Generator Static or 3 select From Function Generator Dynamic i Export Nothing happening Not working yet Example If you want to display a reference waveform to compare to another waveform being measured Under Import Select e g From Function Generator Static Load Reference window opens the tab Function Generator which allows you to preselect the settings of your Reference Waveform Function dropdown box to select the waveform you want None Random Square wave Artificial Square Wave Pure Sine Wave Sawtooth Ram or Triangle Trigger off dropdown box to select the trigger source Channel 1 Channel 2 Math or Reference Start Freq kHz Stop Freq kHz Max Voltage V Min Voltage V Duty Cycle Vert Noise mV Horiz Noise mV Phase Offset V1 0b19 2014 12 21 OPEN6022BE User Manual Page 25 N
42. ease by 1 This means that bit 1 of the 8 bit code will change V1 0b19 2014 12 21 OPEN6022BE User Manual Page 51 state since it represents the least significant bit of the encoded value To help identify its significance this voltage value which in this case is 4mV is called the LSB voltage The LSB voltage tells us the voltage resolution of an ADC When the LSB voltage and the bit resolution are known the full scale FS range can be easily deduced if it s not known For example since the 6022 s ADC has an 8 bit resolution 256 values and a 4mV LSB we can deduce the FS range as follows FS range 256 x 4mV 1024mV ADC and Display Screen Interaction Depending on the scope s setup it s not always possible to utilize the entire graticule area 8 graticule divisions to display the signal at An With the baseline set at the center graticule line a signal swing at Ain from 400mV to 400mV 800mVpp relative to the bias voltage would do the trick If we set the baseline down to the next graticule line the swing required at Ain would be from 300mV to 500mV relative to the bias voltage Moving the baseline any further down would require a swing exceeding 500mV in the positive direction causing the ADC s input range to be exceeded As we know signal levels above 512mV or below 512mV relative to the bias voltage are ignored by the ADC s encoder For this reason except for V Div settings that zoom in full screen displays are only possible with
43. first moved onto the graticule area and halted at any position sort of giving the vertical coordinates of the cursor in volts After the first automatic popup you need to left click anywhere on the screen to get a similar voltage reading which is then related to the new pointer position These voltage readings again are related to the zero line of the two waveforms which initially was a bit confusing to me This only works for Ch1 amp Ch2 not for Reference or Math sources It can be quite handy as a quick measurement but it could also be a bit annoying if you do not need it There is no way to enable disable this function as yet We need to ask RichardK and other members what they think A name for this function is also needed 18 Waveform Context Area ETIL DR A a A IA A PO a DAA AA PA IAS A OA id N The T is the location of the trigger in the Waveform Context area above the waveform To examine the waveform you can drag or scroll the waveform in three different ways to view it by using the mouse cursor 1 Drag the T above the little triangular wave fastest way to drag very coarse or 2 click and drag the Waveform itself slower less coarse or 3 use Left and Right arrow keys slowest fine control V1 0b19 2014 12 21 OPEN6022BE User Manual Page 22 19 Toolbar menu items 1 File a Import Load data from a saved file type bewf b Export Save data to a file on your PC for CH1 CH2 Math Reference
44. he display becomes smaller but no toolbars or controls are shown you have to right click on the display and select Windows Mode to get your toolbar and controls back 3 Channel a CH1 i Turn off Turns off the displayed waveform of Channel 1 as well as the CH1 voltage display in bottom left corner ii Volt Div Select the voltage division range for the displayed waveform V1 0b19 2014 12 21 OPEN6022BE User Manual Page 23 Voltage ranges available 20mV 50mV 100mV 200mV 500mV 1 00V 2 00V 5 00V 10 00V Probe Select the probe attenuation setting to match the setting on your probe Probe settings available 1X 10X 100X 1000X 10000X iv Reset Reset the displayed waveform to the Zero line position v Invert Invert the displayed waveform of Channel 1 vi Clear Clear the channel of any display that is not removed when the channel is turned off b CH2 i Turn off Turns off the displayed waveform of Channel 2 as well as the CH2 voltage display in the bottom left corner ii Volt Div Select the voltage division range for the displayed waveform Voltage ranges available 20mV 50mV 100mV 200mV 500mV 1 00V 2 00V 5 00V 10 00V iii Probe Select the probe attenuation setting to match the setting on your probe Probe settings available 1X 10X 100X 1000X 10000X iv Reset Reset the displayed waveform to the Zero line position v Invert Invert the displayed waveform of Channel 2 vi Clear Clear the channel
45. ich part of waveform to trigger leading edge or trailing edge aka Rise or Fall 5 Horizontal Select Time Division to display the waveform The time base ranges of the oscilloscope are listed further on The horizontal scan speed is from 4ns div to 1 hour div The horizontal scale of the oscilloscope is used to take time measurements These time measurements include measuring the period pulse width and timing of pulses Once you know the period and as frequency is the reciprocal of the period the frequency is one divided by this period f 1 Sec Like voltage measurements time measurements are more accurate when you adjust the portion of the signal to be measured to cover a large area of the screen Taking time measurements along the center horizontal graticule line which has smaller divisions makes for more accurate time measurements or by using the cursors a Time Div Time Division ranges i nS ii us V1 0b19 2014 12 21 OPEN6022BE User Manual Page 26 iii mS Iv Min V S b Format Select format for display i YT Normal use for displaying waveforms ii XY All Displaying Lissajous patterns You will see the complete display without the need for scrolling iii XY Visible Displaying Lissajous patterns You may have to scroll to see any parts outside the display area 6 Cursor The on screen cursors let you take waveform measurements automatically on screen without having to count graticule marks Basically
46. imum Volt Top Volt Middle Volt RMS Amplitude Mean Cyde Mean Overshoot Positive Overshoot Negative Output 3 CH 1 Frequency 1kHz Peak to Peak 2 00784V To measure the Frequency and Peak to Peak Voltage you can do these steps as follows See picture above Check the Frequency box and the frequency of the signal will be shown on the bottom of the waveform interface Check the Peak to Peak button the Peak to Peak Voltage of the signal will also display on the bottom of the waveform interface To clear the measurement on the waveform interface uncheck the related button in left panel Measure x CH2 v Entire Capture Y Y Frequency Rise Time Fall Time Duty Cycle Positive Duty Cycle Negative Pulse Width Positive Pulse Width Negative Minimum Volt Maximum Volt Wj Peak to Peak Volt Middle Volt RMS Cycle Mean Overshoot Positive Overshoot Negative Output 4 CH1 4 CH2 Frequency 1kHz Frequency 1kHz Peak to Peak 2 00784V Peak to Peak 2 00784V Horizontal x Time DIV 500 0us v A Format YT v Vertical Y Enabled CH1 y Volt DIV 2 00V v Probe xi v _ AC Couple Invert Y Enabled CH2 Y Volt DIV D 2 00V VAE 6 Probe i x1 M _JAC Couple _ Jinvert Trigger Trigger Mode Edge v Trigger Sweep Automatic v Trigger Source Channel One v Trigger Slope Rising v 4 Reference Frequency 1kHz Freq
47. install these Hantek drivers for it to work While in Windows insert the installation CD into the CD ROM drive Welcome to Hantek6022BE Vert 0 4 Setup program This program will install Hantek6022BE Ver1 0 4 on your computer It is strongly recommended that you exit all Windows programs before running this Setup Program Click Cancel to quit Setup and close any programs you have running Click Next to continue with the Setup program WARNING This program is protected by copyright law and international treaties Unauthorized reproduction or distribution of this program or any portion of it may result in severe civil and criminal penalties and will be prosecuted to the maximum extent possible under law Cancel 1 The installation should start up automatically Otherwise in Windows Explorer switch to the CD ROM drive and run Setup exe or run Setup exe from your installation folder on your PC 2 The software Installation will start Click Next to continue 3 Choose a destination directory Click Next to continue Destination Location Setup will install Hantek6022BE V er1 0 4 in the following folder To install into a different folder click Browse and select another folder You can choose not to install Hantek6022BE Ver1 0 4 by clicking Cancel to exit Setup Destination Folder C Program Files Hantek6022BE ise Installation Wizard V1 0b19 2014 12 21 Cancel OPEN6022BE U
48. iquids or solvents To avoid damage to the surface of the device or probes do not use any abrasive or chemical cleaning agents Inspection Inspect the device and probes as often as operating conditions require for damage Make sure the device is disconnected from all power sources Cleaning To clean the exterior surface perform the following steps Remove loose dust on the outside of the oscilloscope and probes with a lint free cloth Use a soft cloth dampened with water to clean the device while taking care that water does not enter the enclosure cooling openings V1 0b19 2014 12 21 OPEN6022BE User Manual Page 56 V1 0b19 2014 12 21 OPEN6022BE User Manual Page 57
49. isconnecting the probe from the oscilloscope Observe all maximum ratings To avoid fire shock hazard or damage to equipment observe all ratings and markings on the product Consult the oscilloscope manual for further rating information before making connections to the oscilloscope Use proper probes To avoid shock hazard use the correctly rated probe for your measurement Avoid exposure to circuit or wires Do not touch exposed connections and components when power is on Do not operate with suspected failures If suspected damage occurs to the device have it inspected by qualified service personnel before further use Provide proper ventilation Refer to the installation instructions for proper ventilation of the oscilloscope Do not operate in wet damp Conditions Do not operate in an explosive inflammable area Keep device surfaces clean and dry Overview This oscilloscope is small lightweight portable requires no external power and uses a PC for displaying the test results It is ideal for production testing R amp D education training applications involving analog circuit testing and troubleshooting This is a basic affordable device focused on low end use Typical DSO Probe Vertical ENC Atenuator erica Interface Digital Oscilloscope Acquisition System Vertical System USB Amplifier Horizontal System L Sample Trigger System Clock IL Clock Time Base
50. isition 4 X Y Application The XY display format can be used to measure the phase relationship between two or more synchronous signals This measurement technique involves inputting one signal into the vertical system as usual and then another signal into the horizontal system This is called an XY measurement because both the X and Y axis are then tracing voltages The waveform that results from this arrangement is called a Lissajous pattern pronounced LEE sa zhoo The shape of the Lissajous pattern can tell you the phase difference and frequency ratio between the two signals When looking at the patterns below the first pattern top left shows that the two waveforms are exactly in phase 0 and the frequencies are exactly the same 1 1 The Lissajous patterns below give you an idea of the XY frequency ratio and the degrees phase shift between the two channels This method is commonly used to compare the input signal of a device or circuit to the output of the same device or circuit and the pattern will show if any frequency or phase shift is taking place X Y Ratio Phase Shift Frequency PS 7 Li Ne E 1 1 s 1 2 X I A O U DO O A LA e A WWW Y O A w O Ww kh VV y 0 11210 22 397 45 67 30 90 Display a Lissajous pattern in Demo Mode Run OPEN6022BE in Demo Mode It will automatically open the Demo Mode Options window where you can setup the CH1 and CH2 waveforms V1 0b19 2014 12 21 OPENGO22BE User Manua
51. isition process which allows you to analyze waveforms in your own time If you want the oscilloscope to automatically stop acquiring after a complete acquisition or after one set of records has been turned into an envelope or average waveform use the Single Shot feature which can be found in the dropdown box of Trigger Sweep in the Trigger controls a Start Manually start acquiring and displaying the signal according to the trigger conditions previously set b Stop Manually stop acquiring This is useful for freezing the most recently displayed signal on the screen c Zoom in Click to zoom in on the waveform The zoom level is incremented with each click and displays the level next to the program name in the area above the toolbar d Zoom out Click to zoom out of the waveform The zoom level is decremented with each click and displays the level next to the program name in the area above the toolbar e Zoom reset Click to reset the display to zero zoom f Interpolation Digital oscilloscopes use interpolation to display signals that are so fast that the oscilloscope can only collect a few sample points Interpolation then connects the dots i Step Sample points are connected by drawing a horizontal line from the 1 sample point until the 2 sample point occurs then a vertical line to this 2 sample point forming a step and repeats this for all the sample points ii Linear interpolation This simply connects sample
52. l Page 44 Under Function select Sine Wave for both CH1 amp CH2 Only a sine wave will produce these patterns Leave Phase Offset at 0 0 on both channels Close Demo Mode Options In Controls on the right hand side open Format dropdown and select XY A straight line slanting towards the right Lissajous pattern will show which indicates both frequencies are the same thus 1 1 on CH1 amp CH2 as there is no phase difference 0 Open Demo Mode again Now change any one channel to Phase Offset 90 and leave the other channel at 0 The straight line will now take on the shape of a circle Lissajous pattern This shape indicates that the frequencies are the same for both CH1 amp CH2 but the channels are 90 out of phase If the Phase Offset is 90 and the frequencies of both channels are the same the Lissajous pattern will be a full circle Changing the Phase offset will allow you to display various patterns Changing the frequencies and even the amplitude of the waveforms will change the pattern displayed SA AAA E CH1 EN Horizontal Time DIV 100 0us v A Format BACS v Vertical Y Enabled CH1 Y Volt DIV Loov vi f Probe Xi Yv _ AC Couple _ Invert Y Enabled CH2 Y Volt DIV Lov v g Probe x1 v Trigger Trigger Mode Edge v Trigger Sweep Automatic v Trigger Source Channel One v Trigger Slope Rising v Replace this picture when vertical marker is in place by RichardK Do these
53. l with glued on heat sink HRA Amplifiers 2 Analogue input channels Each channel containing 2 cascaded 74HC4051 5 pin HRA amplifiers and a 3 pin fast switching dual rectifier A7 device Regulator AMS1117 3V3 There are positions on the PCB for a 16 channel Logic Analyzer using another CY7C68013A 100AXC 24LC02 and a SMSC USB2512A USB Hub The complete unit can be purchased as the Hantek 6022BL which has the logic analyzer installed There is also a position for a 5V supply Interestingly the only components needed are a socket and a diode There is no polyfuse in the external supply rail unlike the USB feed The unpopulated components opposite the front end are for an alternate isolated supply for the front end They are using an LTC3440 Buck regulator for the 5V and a classic 7660 Charge Pump for the 5V supply The question remains why is it there if they already have an isolated DC DC supply specifically a Mornsun AO505S 2W The screening cans have not been fitted over the input amplifiers but the PCB has positions for such This may explain some of the noise issues that are reported but it could be other factors as well V1 0b19 2014 12 21 OPEN6022BE User Manual Page 18 IX Noise level with no input checked on 20mV div range only 5 10mV noise and impulses could be seen X No physical AC coupling but at least the user can add a capacitor himself to do this xi At 50ms 1Mhz it starts acquiring at full 1M samples 1 047 552 f
54. leted message on the OEM software The OPEN6022BE software will give you a task completed message immediately 15 Limitations and things to be aware of You need to recognize that this is actually a budget low end oscilloscope which cannot be compared to high end devices or even be expected to deliver the same results Here are some known shortcomings or limitations V1 0b19 2014 12 21 OPEN6022BE User Manual Page 17 a The Hantek 6022BE does not have the Logic Analyzer built in and the PCB has spare positions without the components The Hantek 6022BL has the Logic Analyzer installed but only one of the two devices can be used at a time b The firmware is not situated on the PCB but is loaded from the driver every time the oscilloscope is connected to the PC c The PCB does not have proper metal screening over the components although the board has been designed for screening cans to be fitted These can be retrofitted to reduce noise Base line noise is about 5mV in this state OF oF y ht eit lt b LE Me Fine Ts FF has if f z a K CO br in dy d Some users have inspected the device and have provided the following observations which may be of interest to some The key components are as follows Vi vii viii Microcontroller CY7C68013A 100AXC Cypress EZ USB FX2LP USB 8 16 bit 16KB memory EEPROM 24LC02 2048 bits 2K ADC Analog to Digital Converter AD9288BSTZ 40 Dual Channe
55. losely related parameter called period The period of a wave is the amount of time it takes to complete one full cycle As indicated in the image above one cycle is completed in 4 horizontal grid divisions As indicated in the bottom right of the screen the time div is set to 1us so 4 divisions equals 4us 0 000004 seconds Using the relationship frequency 1 period calculate the period of the signal to be 250000 cycles second or 250 kHz 2 Simple Measurement To acquire and display a signal please do the steps as follows Connect signal to CH1 by using probe The oscilloscope sets the vertical horizontal and triggers controls at the best status automatically if you click on Autoset You can also adjust the controls to meet your measurements to optimize the waveform display V1 0b19 2014 12 21 OPEN6022BE User Manual Page 42 OCE rigge Measure x ASE on i Entire Capture Y Measure X Dane CH1 v Y Period Entire Capture y Rise Time Base Fall Time Frequency Duty Cyde Positive Period Duty Cyde Negative Rise Time Pulse Width Positive Fall Time Pulse Width Negative Duty Cyde Positive Duty Cyde Negative Pulse Width Positive Pulse Width Negative Minimum Volt Maximum Volt Peak to Peak Top Volt Middle Volt RMS Amplitude Mean Cyde Mean Overshoot Positive Overshoot Negative Click on View gt Measure gt Measure Output Y Peak to Peak Minimum Volt Max
56. lt 596 078mV Maximum Volt 997 647mV Peak to Peak 1 59373V 6 200mV Div 1 6Vpp baseline outside 2ctr div Ole x View Channel Trigger Horizontal Cursor Display Acquire Utility Help T AU As SG SES COBRBREZOEREHEO Horizontal Xx Time DIV commis 50 00us y Format Tel Vertical V Enabled CH1 Zi Volt DIV 200mV Z Probe m x1 y AC Couple Invert Enabled CH2 mille Trigger Trigger Mode Edge X Trigger Sweep Automatic Z Trigger Source Channel One z Output 4 CH1 Frequency 10kHz Minimum Volt 1 03529V Maximum Volt 495 686mV Peak to Peak 1 53098V V1 0b19 2014 12 21 OPEN6022BE User Manual Page 49 H7 1V Div 8Vpp baseline outside 2ctr div Channel Trigger Horizontal Cursor Display Acquire Utility Help SBS BORG SEG C0O0SGGGOUREE TE O Horizontal Time DIV 50 00us Vertical V Enabled CH1 Volt DIV 1 00v Probe x1 Enabled CH2 Trigger Trigger Mode Edge X Trigger Sweep Automatic v Trigger Source Channel One z Trigger Slope Rising Output 4 CHi Frequency 10kHz Minimum Volt 2 00784V Maximum Volt 5 05098V Peak to Peak 7 05882V Open60228E v1 File View Channel Trigger Horizontal Cursor Display Acquire Utility Help As ER SES COQ GUBEEEQ Horizontal Time DIV 50 00us Format YT Vertical V Enabled CH1 Volt DIV Enabled CH2 Trigger
57. ltage P P 4V_ this is exactly correct To get a very precise measurement may be hard due to the visual issue with the width of the displayed lines but you can also open and use the Measure tool on the left side panel for more precise measurements V1 0b19 2014 12 21 OPEN6022BE User Manual Page 46 The cross curser allows you to measure both amplitude and frequency of a wave form The vertical line cursor measures only period and frequency The horizontal line cursor measures only amplitude 6 Automotive Tests and Measurements eevblog mrphyll is providing this chapter info 7 Some 6022 Peculiarities The following screenshots and explanation was put together by TomC who is a member and contributor on the http www eevblog com forum This should provide some deeper insight into how the Hantek 6022BE actually functions Do not forget that this is a budget device and it will be unfair to expect it to provide similar performance to the more expensive devices TomC says For the last few days I ve been exploring some 6022 peculiarities related to the way that it displays signals that should span the full height of the graticule The results depend on the V Div setting and the baseline setting What happens in my opinion is not always intuitive So decided to write down my explanation of this effects and to take screenshots of some of my experiments This is my attempt at explaining what happens and why This isn t all new material
58. ltage Resolution Screen Full Screen X1 X10 Factor Ratio Ratio X1 X10 Resolution Baseline Range AmVpp 20mV 200mV 500 5 1 x1 AmV 40mV 2div 21 div off center 0 16 50mV 500mV 200 2 1 x1 AmV 40mV O8div 6 div off center 0 4 100mV 1V 100 1 1 x1 AmV 40mV O4div 2 center div 0 8 200mV 2V 100 1 1 x2 8mV 80mV O4div 2 center div 0 8 500mV 5V 100 1 1 x5 20mV 200mV O4div 2 center div 0 8 1V 10V 100 1 1 x10 40mV 400mV O4div 2 center div 0 8 2V 20V 50 1 2 x10 40mV 400mV O2div full screen n a 1 6 5V 50V 20 1 5 x10 40mV 400mV 008div full screen n a a 10V 100V 10 1 10 x10 40mV 400mV 004div full screen n a g The signal may or may not be centered at An s bias voltage depending on the baseline setting The signal exceeds the ADC s FS range of 1 024V even if centered at An s bias voltage As a result the displayed signals will appear clipped In addition the last 2 entries also exceed the limits imposed by the FET protection diodes even if centered at An s bias voltage V1 0b19 2014 12 21 OPEN6022BE User Manual Page 53 24 Appendix Appendix A Specifications for Hardware Hantek 6022BE Oscilloscope D Appendix B Specifications for Software OPEN6022BE Application Open6022be Software 1X Probe 20mV 50mV 100mV 200mV 500mV 1 00V 2 00V 5 00V 10 0V 10X Probe 200mV 500mV 1 00V 2 00V 5 00V 10 0V 20V 50V 100 0V 100X Probe Gain range Volt Div I gov 5 00V 10 0V 50 0V
59. m Acquire at any time To go back to normal working mode open menu item Acquire click Demo Mode and select Exit Demo Mode In Demo Mode inputs from the probes are ignored and you can select your own virtual inputs You will be presented with a window in which you can select the type of waveforms and parameters Once in Demo Mode most of the controls and menus can be used as normal to change and read the display Demo Mode is an excellent tool to test any functions of the oscilloscope or even train someone to become familiar with its use V1 0b19 2014 12 21 OPEN6022BE User Manual Page 21 File View Channel Trigger Horizontal Cursor Display Acquire Utility Help As BAG a RE RERO RENO Horizontal Time DIV 500 0us v fl Format YT y Vertical Y Enabled CH1 Volt DIV 2000 vi fi Probe x1 M AC Couple _ Invert Y Enabled CH2 Volt DIV Re Probe x1 v Trigger Trigger Mode Edge Trigger Sweep Automatic Trigger Source Channel Two Trigger Slope Rising No Device Connected In Demo Mode Up to 5 waveforms can be displayed at the same time The picture above shows the 5 waveforms being displayed in Demo Mode Yellow Channel 1 waveform Green Channel 2 waveform Grey Reference waveform Violet Math waveform Red FFT waveform 17 GPS Function used presently for lack of a better name The GPS function shows a small popup box with two voltage levels when the cursor is
60. ment does not operate properly or fails performance tests please notify the seller 7 Accessories Two Passive Probes 10 1 Included USB Cable Included CD with Software drivers and user manual Included Probes 100 1 Optional Laptop or Notebook Not Included Current Clamp Optional Variable DDS or Waveform Generator Optional V1 0b19 2014 12 21 OPEN6022BE User Manual Page 9 8 Connections and Indications Hantek 6022BE LED Probes USBXI Reference square wave USB Ground D _ mm Front Rear On the rear panel there are 2 connectors 1 The USB port for connection to a PC for standard male type B USB cable 2 The USBXI port for connection to other Hantek devices This port is described by Hantek as a Standard USBXI interface easily inserts into USBXI housing to make up a combination instrument Hantek has not implemented the use of this connector it seems and has not made any additional information available It is thus assumed that this is a proprietary Hantek connector port that will allow a Hantek device i e Hantek 1025G Waveform Generator and others to be connected to another Hantek device i e Hantek 6022BE DSO with a special Hantek interface cable On the front panel you will see a red green bi color led two BNC connectors and two hook lugs 1 The bi color led between the Ch1 BNC connector and the edge of the enclosure only has 3 states off flashing red or fla
61. ntally at the first test point and a broken line will move as you drag the mouse pointer until you release it at the second test point Voltage readings will be shown on the lower left of the screen Click None as above to remove 10 Start acquiring Start acquiring and displaying the signal according to the trigger conditions previously set Restart Single Shot trigger event 11 Stop acquiring Stop acquiring This is useful for freezing the most recently displayed signal on the screen 12 Zoom in Click to zoom in The zoom level is incremented with each click and displays the level next to the program name in the area above the toolbar 13 Zoom out Click to zoom out The zoom level is decremented with each click and displays level next to the program name in the area above the toolbar 14 Reset Zoom Click to reset the display to zero zoom 15 Auto Setup Once the probes are connected to an input signal and the Auto Setup button is clicked the inputs are scanned and the proper Volt Div and Time Div settings for the best display are selected automatically for that input signal This is a very useful feature and used by many This feature should also be able to reset the DSO if it has failed and the red led is flashing not sure if it is possible on the 6022BE RichardK is still implementing this 16 Default Settings Click to go back to the factory settings When you click the Default Settings the oscill
62. nual Page 15 Now check the shape of the displayed waveforms Adjust each probe to give the best square wave as per the picture below Normal Too much Too little nr me N Pt a pu _ Z 7 f et ms A Pur g Na Correct Over compensated Under Compensated If necessary use a non metallic tool usually supplied with the probe to adjust the trimmer capacitor on the rear of the probe for the flattest square wave being displayed on the oscilloscope Repeat if necessary WARNING To avoid electric shock while using the probe ensure that the insulated cable is in good condition and does not touch the metallic portions of the probe while it is connected to a voltage source 13 Functional Check Perform this basic functional check to verify that your oscilloscope is operating correctly The USB patch cord supplied with the oscilloscope has two connections on one end one black and one red The black one is a full USB cable meaning it provides the connection to the PC as well as the 5V DC power for the oscilloscope to run on The red USB plug is only wired for power and is used in a second USB port on your PC if the first black connection cannot provide enough current to run the oscilloscope Usually this not needed on newer PC s Connect the oscilloscope Connect the A Type connector on the USB cable to your PC s USB port and the B Type connector on the USB cable to the oscilloscope USB port V1 0b19 2014
63. or each channel total 2x1047552 At 20ms 1Mhz it is at 523264 samples each Channel At 10ms 1Mhz 523264 At 5ms 1Mhz 523264 At 1ms 1MHz 130048 At 100us 1Mhz 130048 At 20us 4Mhz 130048 At 10us 8Mhz 130048 At 5us 16Mhz 130048 At 2us 48Mhz 1016 Anything faster than 2us it is still at 48MHz at 1016 samples each channel 2032 total sv ss Hantek 6022BE Front End AD9288 ADOZ 8 max 1 024 Y p p input Vin lt 5V Equivalent Analog Circuit X100 probe has no switch 3rd row refers y Probe lt syv on x1 V x 1 lt 5V lt 50V on x10 V x0 1 lt 5V lt 500V on x100 V x 0 01 lt 5V Vin must always be less than 5V otherwise clipping will be applied x10 Vin lt 0 5V sv 74HC4051 Ve Vin 10 Analog MUX Vout Ve 1 R 1KOhm xii The A7 device is just two fast switching diodes which breaks down at 100V and is used to protect the HRA input amplifier xiii Also take note that instead of your usual 1M ohm resistor and trimmer capacitor in parallel connected from input signal to ground we have the input signal going through a 909K resistor with the trimmer capacitor in parallel with it then shunted to ground through a 100K resistor and an SMD capacitor in parallel To the input it looks like a 1M resistor to ground but the signal is being tapped between 909K and 100K then going to the first Op Amp xiv A 5V input signal in
64. oscope displays the CH1 and CH2 waveforms and removes all other waveforms The oscilloscope is set up for normal operation when it is shipped from the factory and can be recalled at any time by the user The Default Settings function does not reset the Language option or Date and Time setting 17 Full Screen Click to enable Full Screen display without any toolbars controls measure display or measure output There are 3 ways to go back to the normal display 1 Push the ESC key on your keyboard or V1 0b19 2014 12 21 OPEN6022BE User Manual Page 33 2 right click on the display and select Window Mode or 3 click the small top left hand icon and select Restore The display becomes smaller but no toolbars or controls are shown you have to right click on the display and select Windows Mode to get your toolbar and controls back 18 Hide Toolbar Click to hide only the toolbar Click View and select Toolbar if you want it back 19 Toggle Measure Click this button to toggle the Measure selection panel open or closed 20 Toggle Controls Click this button to toggle the Controls panel open or closed 21 About Software version and writer information 21 Control Panel functions The right hand panel contains all the control buttons switches rotary knobs and drop down boxes which emulate the older analogue oscilloscopes and also add extra functions The three large rotary knobs are for setting the time base and voltage base r
65. out in series with the input to block the DC voltage For true AC coupling with the added safety factor this brings about it is advisable to use a separate physical capacitor The value of this capacitor must be calculated w r t the frequency of the signal and have a voltage limit which is much higher than the signal being measured Normally you will always use the scope with the input coupling set to DC This will allow you to measure true DC voltages and also see any AC voltage components that are present DC coupling allows you to observe both DC and AC voltage components Usually you will only select AC coupling for a specific reason If you have an AC component present on the DC signal say a ripple you will not be able to measure or see this ripple voltage separately By selecting AC coupling you will now block and remove the DC voltage which allows you to properly view the AC component of the signal AC coupling allows you to observe AC voltage components only g Invert Check this box to invert the waveform display on the second channel 4 Trigger Dropdown boxes a Trigger level The trigger level is set by using the right hand trigger markers on the screen display Drag the marker to set a specific trigger position level of the rising or falling part of the waveform The trigger levels will be shown in the left bottom corner as TR1 and TR2 The dropdown box for Trigger Slope is then used to select either rising or falling p
66. ow select Load and the reference waveform will be displayed 4 Trigger You can drag the trigger marker to adjust the trigger level The active trigger level will be displayed in the top right corner wee aw LL a Mode Select trigger mode i Edge Sets the trigger mode to Edge trigger b Sweep Select sweep mode i Auto Auto mode causes the oscilloscope to sweep even without a trigger If no signal is present a timer in the oscilloscope triggers the sweep This ensures that the display will not disappear if the signal drops to small voltages It is also the best mode to use if you are looking at many signals and do not want to bother setting the trigger each time ii Normal In normal mode the oscilloscope only sweeps if the input signal reaches the set trigger point Otherwise on a digital oscilloscope it is frozen on the last acquired waveform Normal mode can be disorienting since you may not see the signal at first if the level control is not adjusted correctly Hence in normal mode when trigger events are missing there is no new trace drawn or redrawn iii Single In one shot mode the scan starts only once at first trigger event After that it must be manually restarted by using Acquire Start for another start event So in single mode a trace is drawn just once at first trigger event and the length of scan time depends on time base setting c Source Select the trigger source CH1 CH2 Math or Reference d Slope Select on wh
67. r signal Very similar to measuring the timing of a combustion engine with a strobe light When displaying a waveform and no trigger is set or trigger level is outside the upper and lower peaks of the trigger source waveform the displayed waveform will not be stable or stationary on the screen On older analog CRT oscilloscopes it will roll in much the same way as an older analog TV with the horizontal hold not set correctly By setting the trigger to a level use trigger markers on right side of waveform which is anywhere between the upper and lower peaks of the waveform and specifying the source where that trigger is being used in the trigger source dropdown box the waveform will become stable thus stationary and easy to read Trigger action will also stop the trace from starting until a determined part of the waveform occurs This will make each sweep of the display occur in exactly the same place and the display will appear to be stationary The trigger level control is used to select that point of the waveform 12 ADC Resolution Or Vertical Resolution The resolution in bits of the ADC Analog to Digital Controller and therefore the digital oscilloscope indicates how precisely it can turn input analog voltages into digital values Calculation techniques can improve the effective resolution 13 FFT The Fast Fourier Transform FFT is simply a fast computationally efficient way to calculate the Discrete Fourier Transform DFT
68. ser Manual Page 11 4 Check the setup information Click Next to start the copying of files Start Installation You are now ready to install Hantek6022BE Ver1 0 4 Click the Next button to begin the installation or the Back button to reenter the installation information Cancel 5 This Status dialog is displayed during the copying of files 6 Updating Your System Configuration Updating System Configuration Please Wait i 7 The installation is complete Hantek6022BE Verl 0 4 has been successfully installed Click the Finish button to exit this installation 10 Driver Installation 1 Connect the A Type Black USB Plug of the USB cable to your PC S USB port If your USB port cannot provide enough current then the Red USB plug can be plugged to another USB port on the same PC The red plug is only for additional power 2 Connect the B Type Plug of USB cable to USB port on the oscilloscope 3 New hardware is found y Found New Hardware Hantekocoo DRIVER 1 4 New hardware search wizard starts V1 0b19 2014 12 21 OPEN6022BE User Manual Page 12 Found New Hardware Wizard Please choose your search and installation options Search for the best driver in these locations Use the check boxes below to limit or expand the default search which includes local paths and removable media The best driver found will be installed _ Search removable media floppy CD ROM
69. shing green No Indication If no drivers are installed on PC the led stays unlit when connected to the USB port Red flashing DSO and PC not communicating a If drivers are already installed on the PC and DSO is connected to the USB port but program is not running or b when the program fails due to timebase settings out of limit or c when program shows red STOP in left top corner Green flashing DSO amp PC is communicating a When the DSO is connected to the USB port and program is running or b when program shows green WAIT in top left corner or c when program shows green AUTO in top left corner or d when program shows green Trig D in top left corner 2 The two BNC connectors are for the Channel 1 amp 2 probes 3 The hook lug marked 1 KHz 2VP P provides a fixed reference square wave for adjusting probe compensation 4 The hook lug marked with the ground symbol is the common ground of the DSO used to connect the ground clips to when adjusting probe compensation as well as for calibration of the DSO V1 0b19 2014 12 21 OPEN6022BE User Manual Page 10 9 Installing Hantek6022BE Software The latest Hantek6022be v1 0 4 software is available as of January 2014 and can be downloaded from www hantek com You will need to register on the website to download the software manual and drivers This software is normally provided on a CD when purchasing the oscilloscope When using the free OPEN6022BE software you will also need to
70. steps as follows You may have a device or circuit that may incorrectly or correctly receive a signal and output it with zero phase shift or a specified phase shift Set the probe attenuation to x10 Set the switch to x10 on the probes Connect the CH1 probe to the input of the circuit and connect the CH2 probe to the output of the circuit Adjust the vertical scale and offset to display approximately the same amplitude signals on each channel Select X Y format at Horizontal window The oscilloscope will display a Lissajous pattern representing the input and the output characteristics of the circuit Adjust the scale and offset of the horizontal and vertical to a desirable waveform display The following picture shows a typical example Apply the Ellipse Method to observe the phase difference between the two channels Signal in X Y Format Instruction of the Ellipse Method V1 0b19 2014 12 21 OPEN6022BE User Manual Page 45 Signal must be centered in X Sin6 A B or C D where 6 phase shift in degrees between the two signals From the formula above 6 arcsine A B or tarcsine C D 6 must be in the range of 0 rr 2 or 3rr 2 2rr if the main axis of the ellipse is between and III quadrant If the main axis is at ll and IV quadrant 6 must be in the range of rr 2 rr or rr 3rr 2 5 Taking Cursor Measurements Use the cursors to make time and amplitude measurements on a waveform quickly and accuratel
71. the software automatically Recommended Click Next to continue 10 New hardware wizard installs software and finishes new hardware search wizard Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finished installing the software for a Hantek xox DRIVER 2 Click Finish to close the wizard 11 Your new hardware is installed and ready to use i Found New Hardware X Your new hardware is installed and ready to use V1 0b19 2014 12 21 OPEN6022BE User Manual Page 14 In Device Manager gt View gt Show Hidden Devices you will see both driver 1 and 2 installed only driver 2 shows as connected to PC Driver 1 silently installs the firmware to the device on boot and Driver 2 is for communication with the PC File Action View Help e s ml Hu mE amp Audio inputs and outputs Bluetooth KE Computer ga Disk drives E Display adapters y DVD CD ROM drives a Hantek6022BE Hantek6022BE DRIVER 1 f amp Hantek6022BE DRIVER 2 tS Human Interface Devices ca IDE ATA ATAPI controllers Sj Imaging devices b Keyboards M Mice and other pointing devices dE Modems Ki Monitors EF Network adapters Bh Portable Devices Ports COM amp LPT pa Print queues pa Printers O Processors gt Software devices a Sand viden and name controllerc 11 Installing OPEN6022BE Software This method may change as the OPEN6022
72. to Setup Once the probes are connected to an input signal and the Auto Setup button is clicked the inputs are scanned and the proper Volt Div and Time Div settings for the best display are selected automatically for that input signal c Default Settings Click this button to go back to the factory settings When you click the Default Settings in the Utility menu the oscilloscope displays only CH1 and CH2 waveforms and removes all other waveforms The oscilloscope is set up for normal operation when it is shipped from the factory and can be recalled at any time by the user The Default Settings function does not reset the following settings Language option or Date and Time 10 Help a Contents Contents and Index of help file not available yet b About Software version and writer information 20 Toolbar shortcut menu Icons 1 Import from file Load data from a saved file type bewf 2 Output to file Save data to a file on your PC for CH1 CH2 Math Reference and FFT as selected You can export to the following formats bewf 6022be Waveform data txt Text Waveform data bmp Bitmap Waveform Image jpg jpeg JPEG Waveform Image xls Excel Waveform data not available yet Currently exporting more than one channel or source is only supported for Image exports Richard will modify the data formats for exporting more than one source Right now you have to export them separately 3 Print Print the file
73. uency 1kHz Peak to Peak 4 01569V Peak to Peak 2 00784V The results of measure display CH1 CH2 Math and Reference shows in Information output 3 Capturing a Single Shot Signal In single shot mode the scope acquires and displays a single acquisition of consecutive samples determined by the memory depth and sample rate set on the oscilloscope The user V1 0b19 2014 12 21 OPEN6022BE User Manual Page 43 can scroll and zoom in to any event of interest in the scope acquisition after the scope captures a single trace To capture a single event it needs to gather some pre test knowledge of the signal in order to set up the trigger level and slope correctly For example if the event is derived from 3 3V COMS logic a trigger level of 1 2 or higher Volts should work on a rising edge Do these steps as follows Set the probe and the channel attenuations to X 10 Set up the trigger in the Trigger Menu or in the Trigger Setting window Adjust the Trigger Mode to Edge Set the Trigger Sweep to Single Set the Trigger Source to CH1 Set the Trigger Slope to Rising to select the rising edge Adjust the Volts Div and the time base in a proper range for the signal Drag the trigger level sign on the waveform display screen to proper position It s usually a little higher above the normal level When the trigger conditions are met data appears on the display representing the data points that the oscilloscope obtained with one acqu
74. wo vertical lines for time measurements that you can move around the screen A readout shows the voltage or time at their positions a None Click to remove all cursors b Interactive Click to activate and drag cursors to required points on waveform and read Time Frequency and Voltage on bottom part of screen Click None as above to remove c Lines i Enabled Click to enable the line cursor mode ii Source Select CH1 CH2 Math or Reference iii Cross Select Cross and on the waveform display click on the first test point hold in mouse button a solid line will be placed vertically and horizontally at the first test point and a broken line will move as you drag the mouse pointer until you release it at the second test point V1 0b19 2014 12 21 OPEN6022BE User Manual Page 32 Time frequency and voltage readings will be shown on the lower left of the screen Click None as above to remove iv Vertical Select Vertical and on the waveform display click on the first test point hold in mouse button a solid line will be placed vertically at the first test point and a broken line will move as you drag the mouse pointer until you release it at the second test point Time and frequency readings will be shown on the lower left of the screen Click None as above to remove v Horizontal Select Cross and on the waveform display click on the first test point hold in mouse button a solid line will be placed horizo
75. y Measure the Peak Frequency and the Amplitude Voltage of a Sine Waveform Do these steps Click Cursor gt Source select CH1 or CH2 or Math or Reference which is the channel you want to measure The cursor color will change to whatever color the chosen source is If all or some of the channels are displayed you can close the other channels by selecting Channel gt CH1 gt Turn Off This reduces clutter and is useful if you require the largest waveform on the full screen for precise measurement You can now click Zoom to enlarge the waveform display if required Click Cursor gt Lines gt Enabled Click Cursor gt Lines gt Cross Place the cursor on the starting point you want to start measuring from Hold in the left mouse button and the horizontal and vertical lines will appear Drag the mouse button to the point you want to stop measuring Release the left mouse button the time period frequency and voltage will be shown in the status bar Below the Reference was selected thus the curser lines and measuring results will be shown in the color of the Reference waveform light blue which stands out more The cursor cross is placed at the start of the rise from the zero line and at the fall ending on the zero line for the vertical cursor lines and the horizontal cursor lines on the upper and lower peaks Period 998uS theoretically this should be exactly 1000uS Frequency 1 002KHz theoretically this should be exactly 1 000Khz Vo
76. ything above or below these levels is absent clipped off at the encoder s output Figure 21 Equivalent Analog Input Circuit An s bias voltage is set by a voltage divider that consists of a 28kQ resistor connected to Vp and a 12kQ resistor connected to ground The junction of these two resistors is connected to Ain With Vp 3V as it is in the 6022 the voltage at the junction is 0 9V The input FET is protected from overdrive by the diodes connected across the resistors The diode across the 28kQ resistor is forward biased when the voltage at Ain is 3V plus the diode s voltage drop the diode across the 12kQ resistor is forward biased when the voltage at An is negative relative to ground an amount equivalent to the diode s voltage drop Assuming a 0 6V voltage drop the input signal s maximum swing would be limited to 0 6V through 3 6V Keep in mind however that the ADC s encoder ignores any portion of the signal that is above 1 412V 0 9V 0 512V or below 0 388V 0 9V 0 512V AD9288 Resolution The AD9288 version used in the 6022 is 8 bits With eight bits the signal present at Ain can be encoded into one of 256 different values Since only signal values of 512mV to 512mV relative to An s bias voltage are encoded the minimum change in voltage at An required to change the encoded value is 1024 256 4mV When a voltage change of this magnitude is detected at the ADC s input it causes the encoded value to increase decr

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