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Digital Oscilloscope HMO series 72x...202x 70

1. 5 Peak Frequency Period MEASURE 1 Amplitude Top Level Base Level Pulse Width Pulse Width Duty Cycle Duty Cycle Fall Time 90 Rise Time 80 Fall Time 80 PAGE 1 2 E CH2 5mv tistic of these measurements containing the actual value the smallest the largest the mean the standard deviation and the number of used measurements for that statistic After the menu has been closed the parameters can be identified by the colours of the respective channels here yellow for channel 1 and blue for channel 2 16 TB 500ygs T Os 1MSa MEAS PLACE 2 MEASURE 2 Off RMS Value SOURCE 12 e 2 5 RMS 170 23 uV In addition to cursor and automatic measurements your HMO can also apply mathematical operations to the sig nals Pressing the MATH 26 key and the OM resp the MENU key in the VERTICAL section opens a quick math Formulary Editor Formulary 1 EQUATION lt gt ADD CH1 CH2 lt gt Em EDIT 52 Display m OPERATOR quare OPERAND 1 EE menu OM enabling you to apply addition subtraction multiplication or division to two analog channels This also displays the mathematical graph The top soft menu key allows you to select the first operand With the key below you can select the operator in quick mathematics you can choose between addition subtraction multiplication or di vision The
2. 10 Busta OUI Bro red PRI ote PR cen dha GN S 11 Updates for the firmware the help functions TREE REEETORECITERI ETC COT 11 Upgrade with software options 12 Dell AIIGRINGN uos aces us rh cR CE Sa 12 Logic Probe Self 18 A quick introduction 14 Setting up and turning the instrument on 14 Connection of a probe and signal capture 14 Display of signal details 14 Cursor measurements 15 Automatic measurements 15 Mathematical functions 16 Calas REP 17 Vertical 18 tricot aca ed dk 18 Sensitivity Y Positioning and Offset 18 Bandwidth Limit and Signal Inversion 19 Probe attenuation selection 19 Level E Name a 19 Horizontal System Time Base 20 Capturing modes RUN and STOP 20 Time base 20 Capture 20 Interlace Mode 23 ZOOM KENE iue it ears ea Ar ed Rok eo 23 Navigation Function 23 Marker FUNGUO sy wd x eS 24 Search FUNCUOM as sairastaa RE pad
3. panel In the portion Cursor Menu you find the cursor functions 8 the general cursor select and adjustment knob 4 the Intensity Persistence key 7 the key to call a virtual key board 6 the key for switching between fine and coarse resolution of the universal knob 3 and the key for the se lection of virtual screen 5 The portion Analyze allows direct selection of FFT 9 dis plays the Quick view mode 10 all important parameters of the actual signal display and the automeasure function for the automatic measurement of parameters The portion headed General comprises the Save Recall button for saving and recalling instrument settings refe rence signals signals screen displays and sets of formu lae HELP 16 DISPLAY 14 for access to the general display settings AUTOSET 15 SETUP 13 for access to the general settings e g the language FILE PRINT 17 ANALYZE GENERAL SAVE AUTO RECALL SET PASS FAIL K CURSOR MENU COARSE SELECT FINE KEYPAD FFT INTEN QUIC PERSIST VIEW SETUP HELP SCROLL CURSOR AUT ea FILE BAR MEASURE MEASURE PRINT VERTICAL TRIGGER HORIZONTAL m SEI CLR 4 POSITION LEVEL POSITION m VOLTS DIV 15 COARSE FINE 1MQ I 14 pF max 200 Vp Introduction Area EJ In the area VERTICAL you find all controls of the analog 100 5 1 05 265 Refresh channels such as the position control knob 18 the XY o
4. Fig 2 12 UPGRADE menu 12 There are two methods for employing the key to use the desired option the automatic or the manual input The fastest and simplest method is the automatic input first store the file on an USB memory stick then install the stick into the front panel FRONT USB port of your HMO and press the key SETUP in the General area of the HMO front panel The SETUP menu will open Select page 2 by pressing the respective soft menu key the upgrade menu will open ref to fig 2 12 Now open the UPGRADE menu by pressing the respec tive soft menu key Then press the soft menu key next to Read Licence file which will open the data manager Use the universal knob to select the correct file and then press the soft menu key next to LOAD This will load the licence key the option will be ready to use immediately after a fresh start of the instrument The alternative method is the manual input of the licence key select the menu UPGRADE and press the soft menu key next to Manual key input This will open an input window use the universal knob and the ENTER key to in put the licence key TB 200ns T Os CO 678 9abcde f x CLEAR ALL Press SELECT to select element CURSOR CURSOR Fig 2 13 Manual licence key input After entering the complete key please press the soft menu key ACCEPT in order to input the key into the sys tem The option will be activated after restarting the Instr
5. 10 x sensitivity 40V 10div x sensitivity 100V 10div x sensitivity with option HO3508 TTL CMOS ECL 2 x User 2V 8V 100 kQ lt 4 pF DC 40 V DC peak AC Triggering Analog Channels Automatic Min signal height Frequency range Level control range Normal without peak Min signal height Frequency range Level control range Operating modes Slope Sources Coupling Analog Channel AC DO ale el Noise Rejection Video Standards Fields Line Sync Impulse Sources Logic Sources State Duration Pulse Modes Range Sources Indicator for trigger action Ext Trigger via 2nd Trigger Slope Min signal height Frequency range Level control range Operating modes time based event based Serial Buses Option HOO10 Option HOO11 Option HOO12 Horizontal system Domain representation Representation Time Base Memory Zoom Accuracy Time Base Roll mode Linking of peak detection and trigger level 0 8 Div 0 5 Div typ 1 5 Div at lt 2 mV Div 5 Hz to 250 MHz 5 Hz to 120 MHz at lt 2 mV Div from peak to peak 0 8 Div 0 5 Div typ 1 5 Div at lt 2 mV Div OHz to 250 MHz 0Hz to 120 MHz at lt 2 mV Div 10 10 Div from center of the screen Slope Video Logic Pulses Buses optional Rising falling both CH T Line Ext LC 0547 CH 1 CH 4 Line Ext LOH 0 7 2 Ale OF 250 MEZ to
6. 13 4 12C BUS The 120 bus is a two wire bus which was developed by Philips today known as NXP Semiconductor The HMO series supports the following bit rates for measurements without measuring object via BUS SIGNAL SOURCE 100 kBit s Standard Mode 400 kBit s Fast Mode 1 1000 kBit s Fast Mode Plus TB 100gs T Os 100kBit s Output I2C Data 1000kBit s Level ca 1V Pin Assignment 400KBit s 52 Clock SCL 3 Data SDA Fig 13 4 122 BUS signal source Use the soft menu PROBE COMP amp BUS SIGNAL SOURCE to select the respective clock rate in the SETUP menu 212 A C BUS has the following properties Two wire bus 2 wire Clock SCL and data SDA i Master Slave Communication the master provides the clock pulse and selects the slave Addressing Each slave can be addressed via unique address multiple slaves can be linked with each other and can be addressed by the same master 50 Read Write bit Master reads data 21 or writes data 0 i Acknowledge issued after each byte The format of a simple HRC message frame with an ad dress length of 7 bit is structured as follows i Start condition Falling slope on SDA Serial Data while SCL Serial Clock is HIGH 17 bit address write or read slave i Read Write bit R W Indicates if the data is to be written or read out from the slave i Acknowledge bit ACK 5 issued by the recipient of the previous byte if
7. 16 Appendix 16 1 List of figures Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig 62 Tode 152 215 2 2 2 4 Zu 2 6 25 2 2 9 2 10 Z 11 2 12 ZA SE 2 15 NE 2 50 od ou 0 0 DT 3 10 3 11 oco 3 14 o 15 4 2 5 4 4 4 5 4 6 Oc Oe 9 9 5 4 29 6 1 6 2 6 3 6 4 Operating positions Product labeling in accordance with EN 50419 Frontview of the HMO2024 Area A of the control panel section B C and D of the control panel ocreen view Rear panel of the HMO2024 Y Out signal Selection of basic soft menu elements Basic soft menu elements for settings and navigation Menu for basic settings Updating menu and information window O 10 10 11 Menu and information window for help udates1 1 UPGRADE menu Manual licence key input Successful self alignment Logic probe self alignment Control panel A of the HMO Screen display after connection of the probe screen display after changing to DC coupling Screen display after Autosetup Area of the control panel containing the ZOOM knob ZOOM function Cursor measurements Quick
8. 36 Quick View 15 16 39 H ratios 19 32 94 39 reference curves 41 42 43 reference signal 8 17 reference time 27 28 remote interface Rise time 24 32 34 39 RMO 92 39 od roll mode 20 RS 232 interface 59 runt 24 o sampling rate 8 20 21 22 23 42 43 48 Save Recall 7 17 screen display 17 screenshot 9 10 17 43 44 ocroll Bar 8 self alignment 12 13 sensitivity 2 18 19 serial bus analysis 11 19 48 signal source 7 11 14 18 32 50 slope trigger 24 25 26 soft menu keys 9 23 30 36 47 50 Source 7 11 15 16 16 19 23 25 20 27 29 31 09s 0 99 900 0799 42 27 OU 91 09 04 source curve 40 square wave signal 11 14 34 square wave window function 39 standard deviation 16 32 34 35 start signal 51 sweep 8 11 T termination 18 TFT display 8 29 threshold 19 28 31 time base 8 11 12 14 15 20 21 22 23 24 25 31 38 41 42 45 trigger Conaiuons 9 20 25 20 20 29 41 01 253 50 59 trigger input 8 26 53 trigger level 8 24 26 27 trigger settings 12 14 55 trigger signal 8 26 35 trigger source 8 27 35 trigger type 8 25 26 27 30 55 two window display 15 U UART RS 232 Bus 54 64 universal knob 7 9 10 12 15 16 17 19 20 24 25 26 21 26 29 30 91 32 33r DO OU 3739 40 414243 44 47 49 50 51 52 53 54 55 56 57 58 USB connector 17 USB Ethernet 8
9. BACKLIGHT PERSISTENCE LED BRIGHTNESS m Fig 7 2 Menu for setting the signal display intensities tence mode may be selected for the display of varying signals this is a storage mode such that several curves may be written to remain on the screen Also the so called Variable Persistence may be selected in this mode the persistence can be changed from bO ms to infinity this will cause the most recent portion of the signal to appear bright while the preceeding portions will fade in propor tion to the time elapsed This mode can be selected in the soft menu which will open upon pushing the key INTENS PERSIST the signal intensity can be changed also in this menu Two more menu items are available GRID and BACKLIGHT by pushing the respective soft menu keys the intensities can be changed with the universal knob The soft menu key next to the lowest menu item toggles between High and LOW of the LED s of all backlit keys and all other LED displays on the front panel After selecting the menu items PERSISTENCE and AD JUST the persistence function can be defined there are 3 choices for the duration of the persistence OFF AUTO MATIC and MANUAL In MANUAL operation the duration can be changed with the universal knob from 50 ms to infi nity If a finite time was selected the signal periods will be written on top of each other such that the brightness will diminish from recent to oldest If e g 300ms is selecte
10. General Manager General information regarding the CE marking The instruments fulfill the regulations of the EMC directive The conformity test based on the actual generic and product standards In cases where different limit values are applicable the instrument applies the severer stan dard For emission the limits for residential commercial and light industry are applied Regarding the immunity susceptibility the limits for industrial environment have been used The measuring and data lines of the instrument have much influence on emission and immunity and therefore on meeting the acceptance limits For different applications the lines and or cables used may be different For measurement operation the following hints and conditions regarding emissi on and immunity should be observed 1 Data cables For the connection between instrument interfaces and external devices computer printer etc sufficiently screened cables must be used Without a special instruction in the manual for a reduced cable length the maxi mum cable length of a dataline must be less than 3 meters and not be used outside buildings If an interface has several connectors only one connector must have a connection to a cable Basically interconnections must have a double screening 2 Signal cables Basically test leads for signal interconnection between test point and instrument should be as short as possible Without instruction in the manual for a shorter
11. factor and determines the width of the zoom area dis played in the zoom window 12 divisions x scaling per divi sion 12 indicates the zoom time and determines the posi tion of the zoom area Important The ZOOM function is not available in ROLL mode The time base setting in the upper right of the display is highlighted in gray while the zoom time base above the zoom window is marked in white The large knob in the horizontal menu is used to change the zoom factor You can also press this knob If the knob is pushed the time base setting is highlighted in white and the zoom time base gray Now the knob is available to select the time base setting This allows you to change time base set tings without having to leave the zoom mode Pressing the knob again will highlight the cursors limiting the zoom area in white allowing you to use the knob to change the zoom area Now you can use the small knob in the hor izontal area of the control panel to move the position of the zoomed section across the entire signal As described above pressing the large knob enables you to set the time base but not the zoom factor This in turn enables the small knob to move the trigger position to define the relationship of pre and post captures records In the acquisition mode ROLL it is generally not possible to zoom in on the memory because the signal values of the X axis are always captured with the maximum mem ory depth The acquisition mode N
12. his allows very fast and typically optimal auto matic positioning of the cursors For the most part only fine tuning is required at this point and the tedious ma jor adjustments to the cursors will no longer be neces sary As previously described the cursors can also be se lected by pressing the universal knob and may be positi oned by turning the universal knob In case the automa ted function SET TO TRACE does not provide the anticipa ted results due to complex signals you can press the key SET TRACE to position the cursors in a predefined st arting position This allows you to return distant cursors to the screen The soft menu key GLUE TO TRACE allows cursors to stay on the selected data point without changing the position in the measurement signal even if the scaling is modified cursors will be glued to the signal This function can be activated or deactivated If this mode is deactivated the cursor stays in position on the screen if scaling occurs With GLUE TO TRACE deactivated the measured value changes while it remains unmodified when the mode is activated Pushing again the button CURSOR MEASURE switch off al cursors 8 2 Auto measurements The HMO series features cursor measurements and also various automatic measurements These may be activated by pressing the key AUTO MEASURE 11 in the section AN ALYZE of the control panel This menu allows you to select up to six automatic mea surement functions b
13. roy the inputs wer switch on the backside the red light will also switch off this will take some seconds Furthermore you find on the front panel the control panel 2 EX Ell O Bl the BNC connectors of the analog inputs 45 to 48 the probe ad justment output 51 the bus signal source 50 the connec tors for the optional logic probe HO3508 53 a USB port USB sticks 54 the TFT screen 55 the inputs for the com ponent tester 52 and the LED 49 for showing activity on the remote interface At the two channel versions there is the external trigger at right side 2 2 Control panel The controls on the front panel allow direct access to the most important functions all extended functions are available via the menu structure by using the grey soft keys The power key 1 is clearly set apart by its design The most important controls are backlighted by coloured LEDs in order to immediately indicate the actual settings The panel is subdivided in these four areas ROHDE amp SCHWARZ 2024 AEN IS 200MHz 2GSa 2MB DIGITAL OSCILLOSCOPE 100 us T 294ys USB STICK LOGIC CHANNEL POD 7 0 COMPOST TESTER Use recommended probe only ene 10V Fig 2 1 Frontview of the HMO2024 Introduction Area This area encompasses these three portions Cursor Menu Analyze General PO S i Area A of the control
14. type of slope i SOURCE determines the triggers source i FILTER determines the exact trigger conditions Fig 6 1 Front panel control E area of the trigger system Additional keys are provided for the selection of the trigger modes AUTO NORMAL SINGLE 6 1 Trigger modes Auto Normal Single The basic trigger modes are directly selectable with the key AUTO NORM In AUTO mode the key will not be lit If the key is pushed it will light up red indicating NORMAL mode he oscilloscope always presents a signal in AUTO mode and a signal will automatically yield a stable display If it fulfills the trigger conditions In NORMAL mode the signal will be displayed if it fulfills the trigger conditions if it fails to do so the last stable trig gered display will remain on the screen If itis desired to record a signal which fulfills the trigger conditions only once the key SINGLE must be pushed it will light up white This indicates that the single trigger mode is active the RUN STOP key will blink The next re turn of the signal will cause a single capture the oscillo scope then goes into the STOP mode indicated by the RUN STOP key lighting up in red AUTO LEVEL Fig 6 2 Coupling modes with slope trigger 2b Trigger System 6 2 Trigger sources Trigger sources are the 2 or 4 analog channels and the ex ternal trigger input If the optional logic probe HO3508 with 8 or 16 logic channels is connected also
15. 138 7 13 8 13 9 13 10 e M E 13 12 13 14 toto 19 10 Ios 19 15 13 19 13 20 13 21 19 25 141 Logic trigger menu Logic channels settings display Video trigger menu Drawing of the virtual screen area and an example Menu for setting the signal display intensities Persistence function Settings for the Z input Cursor measurements selection menu Menu for the automatic measurements settings Statistic for Automeasurements Mathematics short menu Quick mathematics menu Formula editor for formula sets Entry of constants and units FFT illustration Advanced FFT menu PASS FAIL mask test Basic menu for instrument settings Storing instrument settings Recalling instrument settings Import Export menu for instrument settings Loading and storing of references Menu for storing curves Menu for screenshots Definition of FILE PRINT key Component tester at short Logic channels settings display Bus definition menu 27 28 28 30 30 30 31 32 33 39 36 36 36 37 38 38 40 41 41 41 42 42 43 44 44 46 46 49 Menu for the selection of the decoding format 49 Example HC BUS with BUS table 2 BUS signal source 2 7 bit address Menu for the definition of 12 sources 2 message decoded with hexadecimal values GC READ WRITE trigger menu 2 data trigger menu Example HC BUS with BUS table SPI BUS signal source Simple configuration of a SPI BU
16. 250 MHz OMS selectable PAL NISC SECAM PAL M SDTV 576i HDTV 720 HDTV 10801 HDTV 1080p Field 1 field 2 both all selectable line number positive negative CH CH2 Ext CH2 CH1 to Ch Cha AND OR TRUE FALSE to 7 CH1 CH2 CH1 w ChA CRA LCHO to 7 X H L 8ns to 2 1475 resolution 8ns positive negative equal unequal less than greater than within without a range Min 32ns max 17 1795 resolution min 1 ns Cl CH2 CH1 to Chd Cha LED Auxiliary input 0 3 V to 10 Vss rising falling both 0 8 Div 0 5 Div typ 1 5 Div at lt 2 mV Div 0Hz 250 MHz 0Hz 120MHz at lt 2 mV Div 10 to 10 Div 32ns to 17 179s resolution 8ns lito 216 I2C SPI UART RS 232 on Logic Channels Analog Channels I2C SPI UART RS 232 on Analog Channels CAN LIN on Logic Channels and Analog Channels Time Frequency FFT Voltage XY maincreen main and zoom window up to 50 000 1 50 ppm 2 ns Div to 50 s Div 50 ms Div to 50s Div Digital Storage sampling rate real time Resolution vertical Resolution horizontal Memory Operation modes Interpolation Persistence Delay pretrigger Posttrigger Display refresh rate Display Reference memories 2 x 2GSa s 1 x 2GSa s CH2 4 x 1GSa s 2 x 2 5 5 CH4 Logic Channels 8 x 1 GSa s 8 Bit HiRes 10 Bit 40 ps 2 x 1MPts 1 x 2 lt CH2 4 x 1MPts 2 x 2 MPts CH4 Refresh Aver
17. The menu CURSOR MEASURE allows you to select cur sor based measurements for an activated signal source on the oscilloscope he measurement source is indicated by the font color of the respective result The results are dis played at the bottom of the screen If n a is displayed the measurement is not applicable to the signal For in stance this may be the case for a voltage measurement on a POD because only logic states without voltage ref erence are displayed here If is displayed the display does not show a complete measurement result For in stance the period to be measured may not display com pletely and can consequently not be identified As shown above the selection of the kind of measurement can be done by pushing the respective soft menu key and selecting the kind of cursor measurement with the universal knob The results will be displayed below the graticule In or der to move a cursor select the desired cursor by pushing the universal knob and position the cursor with the universal knob The kinds of measurements are VOLTAGE This mode provides 2 cursors in order to measure 3 different 32 voltages The values V4 and V2 represent the voltages diffe rences between the zero base line and the actual positions of the two cursors on the selected signal curve AV repre sents the voltage difference between the cursors TIME This mode provides 2 cursors in order to measure 3 different times and an equivalent frequ
18. a very high resolution for this price bracket TB 100us T Os Refresh Span 10 MHz Center 6 48 MHz Fig 9 5 FFT illustration The FFT menu allows a quick Fourier transformation which displays the frequency spectrum of the measured signal The changed display allows you to determine the most frequent frequencies in the signal and the corresponding amplitude The FFT is not suitable for the analysis of very slow signals Hz range this type of analysis requires a classic oscilloscope mode You can activate the frequency analysis by pressing the FFT key 9 in the ANALYZE section of the control panel Once the key was pressed it will be illuminated in white and the screen will be divided into two graticules up per section displays the voltage time curve whereas the lower section lists the results of the Fourier analysis The FFT is calculated including a maximum of 65 536 acquired 38 data points Additional points at a consistent span result in a smaller frequency increment of the FFT The number of points for the output data is half the size of that of the in put data The upper left of the display shows information about the settings in the time range the area between the upper and the lower window shows details about zoom and posi tion and the section below the large FFT display window indicates the settings Span and Center in the frequency range The lower FFT display window will be outlined in white
19. an 8 channel logic probe HO3508 equips the scope with 8 logic channels Further options are the passive 500 MHz Slimline 10 1 probes of the type HZ355 passive 1000 1 probes with up to 4000V of the type HZO20 active 10 1 probes with lt 1 pF input capa city of the type HZO30 active difference amplifier pro bes HZ100 HZ109 and HZ115 with up to 1000 Vrms and 40 MHz active high speed differential probes HZO40 and HZO41 with 200 or 800 MHz bandwidth the current pro bes HZO50 and HZO51 with up to 100 kHz bandwidth and up to 1000A the 19 rack mount set HZO91 and the type HZO9O transport bag for the protection of the instruments The options HOO10 11 and 12 make the analysis of serial protocols available more informations you can find in chapt 2 10 2 6 General concept of instrument operation Our oscilloscopes are renowned for easy operation based on a few basic principles which repeat with the diverse settings and functions Such keys which do not open a soft menu e g quickview switch a function on pushing the key again will switch the function off Such keys which call a specific function e g FFT which in turn can call or require more settings will activate the function upon the first touch Pushing the key a second time will call the soft menu sub menu for the settings Pushing the key a third time will deactivate the function Such keys which open a soft menu upon the first touch will close it upon pushing a
20. as indicated by the channel key light up The channel number will be shown in the top of the menu By pushing the respective key of another channel the menu will trans fer to this channel 4 2 Sensitivity Y Positioning and Offset The sensitivity of the analog inputs can be selected with the large knob in the VERTICAL section of the front pa nel in 1 2 5 steps from 1 mV div to the respective maxi mal setting independent of the 50 only available at the HMO152x HMO202x 1 selection The knob is TB 500ns T 220ns PAGE 212 Fig 4 4 Vertical offset in the extended menu associated with the channel selected by pushing the re spective key The sensitivity can be changed to continuous control by pushing the knob once The smaller one of the knobs is used for vertical positioning By pushing the MENU key the extended menu is called On page 2 of this menu at the HMO152x and HMO202x a DC offset can be added to the signal In order to switch this offset in the respective soft key must be pushed The settings window will be backlit in blue and the activity in dicator next to the general knob will light up the offset can now be adjusted with the knob The offset voltage will be added to the signal at the vertical amplifier input offset ting it by that amount from the zero position The possi ble amount of offset depends on the Volts div setting cho sen The offset function being activated will be indicated by two chann
21. automatic with time limit of 4s up to 30s for closing soft menus 10 200 5 05 LANGUAGE INTERFACE PRINTER DEVICE INFORMATION PAGE 1 2 2 Fig 2 9 Menu for basic settings TIME REFERENCE position for reference of the trigger time choose from 5 DIV up to 5 DIV O DIV is in the middle of the screen and set as standard DATE TIME opens menu to set date and time i SOUND opens menu to set any combination of beep for control error and or trigger i DEVICE NAME menu to set a name for the HMO maximum of 19 characters are allowed the name will appear in Screenshot s 1 LOGO IN SCREENSHOT here you can setup whether a logo will be inserted into the screenshot or not The next menu entry INTERFACE lets you select the in terface you are using USB and RS 232 are standard and possible settings for that interface The menu item PRINTER contains settings for POST SCRIPT printers Pushing this softkey will open a submenu in which you can select the paper format and the colour mode If you choose the top menu item PAPER FORMAT with the associated soft menu key a window will open which offers the selection of A4 Ab Bb B6 and Executive letter and legal in portrait or landscape Use the universal knob to select the desired format which will then be indi cated on the soft menu key The next lower menu item COLOR MODE allows the selec tion of the modes Greyscale Color and Inverted follow
22. chargeable batteries with alkaline electrolytes e g lithium cells must be handled in accordance with the EN 62133 standard 1 Cells must not be taken apart or crushed 2 Cells or batteries must not be exposed to heat or fire otorage in direct sunlight must be avoided Keep cells and batteries clean and dry Clean soiled connectors using a dry clean cloth 3 Cells or batteries must not be short circuited Cells or batteries must not be stored in a box or in a drawer where they can short circuit each other or where they can be short circuited by other conductive materials Cells and batteries must not be removed from their original packaging until they are ready to be used 4 Keep cells and batteries out of the hands of children If a cell or a battery has been swallowed seek medical aid immediately 5 Cells and batteries must not be exposed to any mecha nical shocks that are stronger than permitted 6 lf a cell develops a leak the fluid must not be allowed to come into contact with the skin or eyes If contact occurs wash the affected area with plenty of water and seek medical aid 7 Improperly replacing or charging cells or batteries that contain alkaline electrolytes e g lithium cells can cause explosions Replace cells or batteries only with the identical type in order to ensure the safety of the product 8 Cells and batteries must be recycled and kept separate from residual waste Rechargeable batteries an
23. des at least one X don t care it is possible to trigger on a value equal or not equal to the specified value If the pat tern includes only 0 or 1 it is possible to trigger on an area greater than or less than the specified value The PATTERN INPUT may be binary or hexadecimal If you choose the bi nary input the soft menu key BIT and the universal knob allow you to select which individual bits within the data are to be edited Select the option STATE to assign a logic state to each bit High H 1 Low L 0 or X don t care The state X defines any state If you choose the hexadecimal input the soft menu key VALUE and the universal knob allow you to set the value for the respective byte If the input is hexa decimal only the entire byte can be set to X Use the soft menu key BYTE to toggle between bytes The soft menu IDENTIFIER AND DATA includes the same settings as the soft menu IDENTIFIER In the menu that opens you can select the FRAME general data or read data via top soft menu key and universal knob In the menu IDENTIFIER SETUP below you can enter the address of the respective pattern The soft menu DATA SETUP al lows you to specify the data bit pattern or HEX values for up to 8 bytes only available if DATA was selected as frame type Available comparisons for address and data values are GREATER EQUAL OR LESS EQUAL and NOT EQUAL Press the MENU OFF button twice or three times to close all menus and the
24. falling slope and for a neg ative pulse on a rising slope Activate the pulse trigger by pressing the TYPE key 31 in the trigger control panel Press the FILTER then you can select additional settings for the pulse trigger in the soft menu There are 6 different options 11 1 he pulse width ti is unequal to the reference width t 500us 05 7 1MSa tl lt ti lt t2 E Not ti ti t2 Fig 6 4 Pulse trigger menu rt t The pulse width ti is equal to the reference width t bt he pulse width ti is smaller than the reference width t I ti gt t The pulse width ti is greater than the reference width t t1 lt tj lt t2 The pulse width ti is smaller than the reference width 12 and greater than the reference width t1 i not t1 ti t2 he pulse width ti is greater than the reference width 12 and smaller than the reference width t1 The comparison time can be set anywhere between 8ns to 134 217 ms For any value up to 1 ms the resolution is ons and for any value greater than 1 ms the resolution is 1 us The deviation can be set anywhere between 4ns to 262 144 us with a resolution of 415 select the desired function and then adjust the desired re ference time If you select t t or t t you can use the soft menu key TIME and the universal knob in the CURSOR MENU control panel to set a reference time Se lecting the soft menu item DEVIATION allows you to use the universal knob to de
25. for many proto cols One example is the RS 232 protocol It consists of a frame with a start bit 5 to 9 data bits one parity bit and a stop bit The stop bit can assume the single length or 1 5 or twice the length of a normal bit The HMO series supports bit rates of 9600 bit s 115 2 kBit s and 1 MBit s for measurements without measur ing object via BUS SIGNAL SOURCE Use the soft menu PROBE COMP amp BUS SIGNAL SOURCE to select the re spective clock rate in the SETUP menu 212 man ol Sol Fig 13 16 UART bit sequence 13 6 1 UART RS 232 BUS Configuration To decode the UART BUS it is necessary to first determine which channel will be connected to the data line This set ting is selected after choosing the bus type UART in the BUS menu and pressing the soft menu key CONFIGURA TION In the menu that opens you can press the top soft menu key DATA SOURCE to select the desired channel via Prior to the BUS configuration it is necessary to set the correct logic level for the digital channels see chapter 11 2 or the analog channels see chapter 4 5 The default setting for both is 500 mV 54 universal knob If the option HOO10 is installed each ana log and digital channel is available as source If the op tion HOO11 is installed it is only possible to select analog channels as source Make sure that a complete message of a serial protocol is always displayed on the screen to ensure decoding can fun
26. function Please ask your T department for tha oorraat setting at your nat work If tha ascdloacopa doses have an IP Adresas you can open your web browser and put this IP adress into the ad rasa line http xxx xxx xxx xxx Since the HO 30 doas have a webserver integrated it will open a site with infor tha the interface and it s setting On the left side thers are links to 5 Data which make it possible to transfer sorgen dump to the PC Using tna right mouse click thes can be transferred to the dip board for further use Tha link SCPI Devios Contrat Open a site with a congole to send remote SCA commandas to the Further information you find at the manual of the HO 30 at the download area a tour homepage www roh desohwarz oom on 14 4 IEEE 488 2 GPIB Option HO 7440 The optional interface card HO 70 does have a IEEET88 2 connection The settings of the interface can doms in the oscilloscope after chose the IEEETBS as interface and hitting the soft key PARAMETER Further information you can find at the manual of the HO740 at the download area a tour homepage www roh desaohwarz com cn 59 Specifications 15 Specifications 2022 series 2 Channel Digital Oscilloscope 2024 series 4 Channel Digital Oscilloscope Firmware gt 4 522 data valid at 23 C after 30 minutes warm up Display Display Resolution Backlight Display area
27. if the maximum sampling rate has been activated refer also to the HMO SCPI Manual 5 3 8 3 AUTOMATIC This mode is the standard mode the instrument always selects the optimum combination of capturing and sampling rates me mory length used Each column in the signal window displays up to 10 captu red data values How much data is currently displayed de pends on the displayed time window and the current sam pling rate When peak detection is activated each column displays up to 5 pairs of min max values The memory depth is at least twice as much as the sto rage capacity set for the maximum repeat rate limited by the maximum acquisition memory he displayed samp ling rate corresponds to the current sampling rate divided by the amount of data skipped while loading from the ac quisition memory If peak detection is activated the dis played sampling rate corresponds to the current sampling rate Refresh 250MSa Fig 5 4 AM modulated signal with automatic setting settings apply the identical current sampling rate sampling rate used to write to the acquisition mem ory In STOP mode it is also possible to change menu items This does not impact the current memory depth but the amount of displayed data will be adjusted Peak detection is also activated in STOP mode time base in microseconds In time bases displaying each sampling point all three set tings behave identically except used memory depth and si
28. line showing the divisions as dots or as OFF the entire graticule will include no dots or lines INFO WINDOWS selecting this soft menu item will open a submenu which allows you to set the transparency for the info windows Info windows are small windows that appear on the screen depending on the particular application e g values are displayed when offset is changed A transparency value of 0 to 100 is selectable Use the universal knob 4 to define this setting Additional menu items allow you to activate or deactivate the info windows for POSITION and TRACE BRIGHTN If POSITION is activated and the 29 Display of signals vertical position is changed the respective value on the zero line will be displayed Depending on the selected trigger type the user will see specific information about the acquisition status This information will only be displayed if the signal changes on the screen can persist over a longer period If the trigger condition has been met the information window shows a progress display for the post trigger and pre trigger If the trigger condition has not been met the information window shows the time of the last trigger event Trig If the trigger type AUTOMATIC is selected the instrument will switch to non triggered acquisition mode in case of a non triggered condition over an extended period of time This acquisition mode does not display an info window as the data currently captured is displayed i
29. menu to select the display format and its extent The universal knob in the submenu allows you to choose the format to decode the bus values You can choose from the following formats Binary 1 Hexadecimal Decimal 1 ASCII The decoded values will be shown in the cells tables of the buses according to the selected format The next soft menu key BITS can also be used to activate or deactivate the table display for the individual bus bits A white dot in the short menu indicates that a BUS Is ac tivated You can now use the position control knob to de termine the position of the bus display on the screen The VOLT DIV knob allows you to determine the size of the ta ble display This may be particularly useful for the binary display as it allows the display of the complete value in up to 4 rows even for short tables 12 3 Cursor measurements for the logic channels If the logic channels were activated some parameters may be measured with the cursors For all activated logic chan nels of a POD these measurements are available TIME RATIO X V MARKER The results will be as follows TIME The time position of both cursors relative to the trigger time position will be indicated also the time difference between the two cursor positions from which the fre quency is calculated RATIO X In this mode 3 cursors are used The time ratios between 47 Mixed Signal Operation the first and the second and between the first and
30. numeric input KEYPAD button 13 7 2 CAN BUS Triggering After the BUS configuration it will be possible to trigger on various events Press the button in the TRIGGER section of the control panel and choose the soft menu key SERIAL BUSES Then press the SOURCE button in the TRIGGER section and choose CAN This will only be ble if it was configured earlier Press the FILTER button in the TRIGGER section of the control panel to list all available CAN trigger conditions The function START OF FRAME triggers on the first slope of the SOF bit synchronizing bit The function END OF FRAMI triggers on the end of the frame The soft menu FRAMI offers the following options i ERROR General frame error i OVERLOAD Trigger on CAN Overload frames DATA Trigger on data frames select the correct identifier type via universal knob i READ DATA Trigger on read frames select the correct identifier type via universal knob DATA READ Trigger on read and data frames select the correct identifier type via universal knob i ID TYPE Identifier type 11 bit 29 bit or any The soft menu ERROR identifies various errors in a frame This menu allows you to choose one or several error mes sage types as trigger condition i STUFF BIT Individual frame segments e g frame start etc are coded during the bit stuffing procedure The transmitter automatically adds a complimentary bit to the bit stream if it detects 5 consecuti
31. oscilloscope will trigger on the set data 13 8 LIN BUS The LIN Local Interconnect Network BUS is a simple master slave bus system for automotive applications and Is used for the data exchange between controller units and sensors or actuators The signal is transmitted on one line with ground reference to the vehicle mass The standard data rates range between 1 2 kBit s and 19 2 kBit s A LIN message consists of a header and the data Serial bus analysis A LIN BUS has the following properties i Serial single wire communication protocol byte oriented i Master slave communication generally up to 12 knots i Master controlled communication master initiates coordinates communication The data is transmitted in bytes without parity based on UART Each byte consists of a start bit 8 data bits and a stop bit Start BitO Bit 1 Bit7 Stop bit LSB MSB bit Byte field Fig 13 23 Layout LIN byte structure 13 8 1 LIN BUS Configuration Prior to the BUS configuration it is necessary to set the correct logic level for the digital channels see chapter 11 2 or the ana log channels see chapter 4 5 The default setting for both is 500 Make sure that a complete message of a serial protocol is al ways displayed on the screen to ensure decoding can function properly The Zoom function allows you to view details for any specific message To decode the LIN BUS it is necessary to first determine whic
32. selecting the BUS type For a 2 wire SPI system select the option SSPI for a 3 wire SPI system select the option SPI Prior to the BUS configuration it is necessary to set the correct logic level for the digital channels see chapter 11 2 or the ana log channels see chapter 4 5 The default setting for both is 500 mV For the two channel inst ruments the CS chip select must be connected to the external trigger input the level can be set at the setup menu of the bus under CONFIGURATION EXTERNAL LEVEL Make sure that a complete message of a serial protocol is always displayed on the screen to ensure decoding can function pro perly The Zoom function allows you to view details for any spe cific message Then press the CONFIGURATION button to open the setup menu for SPI Use the top soft menu key SOURCE to select the respec tive channel for chip select CS clock CIk and data Se lect the respective soft menu key CS Clk or Data key will be highlighted in blue and then use the soft menu key DATA and the universal knob to the select the respec tive source channel For the 2 wire SPI select the possi ble TIME OUT instead of a chip select source During the time out data and clock line are at Low When the time out has been reached a new frame begins If the time in tervals between the data packets are shorter than the time out these packets belong to the same frame You can se lect the dead time via universal knob
33. short typ 50 Hz 200 Hz typ Ground safety earth 1 kHz 1 MHz square wave signal 1Vpp ta lt 4ns SPI I2C UART Parallel 4 Bit Date and time for stored data 100 to 240V 50 to 60 Hz CAT II max 45W typ 25 W CH2 max 55W typ 35 W CH4 Safety class EN61010 1 5 to 40 C 20 to 70 C 5 to 80 without condensation Kensington Lock 285 x 175 x 140mm Accessories supplied Line cord Operating manual 2 4 Probes 10 1 with attenuation ID HZO10 CD Software Recommended accessories Serial bus trigger and hardware accelerated decode 12 SPI HOO10 UART RS 232 on Logic Channels and Analog Channels HOO11 Serial bus trigger and hardware accelerated decode I2C SPI UART RS 232 on Analog Channels HOO12 Serial bus trigger and hardware accelerated decode CAN LIN on Logic Channels and Analog Channels HO3508 Active 8 Channel Logic Probe HO730 HO740 HZO91 HZO90 HZO20 HZO30 2040 HZO41 HZOBO Dual Interface Ethernet USB Interface IEEE 488 GPIB galvanically isolated 19 Rackmount Kit Carrying Case for protection and transport High voltage probe 1 000 1 400 MHz 1 000 Vrms Active probe 1 GHz 0 9 pF 1 MQ including many accessories Active differential Probe 200 MHz 10 1 3 5 pF 1 MQ Active differential Probe 800 MHz 10 1 1 pF 200k AC DC Current probe 30A DC 100kHz AC DC Current probe 100 1 000 A DC 20 kHz 61 Appendix
34. sticks The exact procedure is described in chapter 9 2 10 6 FILE PRINT Key Definition The FILE PRINT key in the GENERAL control panel allows you to save instrument settings curves screenshots and screenshot settings simultaneously with just one key As described in previous chapters you must first select the corresponding settings for storage location name etc The soft menu key FILE PRINT in the SAVE RECALL main menu opens the setup menu for the FILE PRINT key You may choose from the following actions i DEVICE SETTINGS Stores settings 1 TRACES Stores curves i SCREENSHOTS Stores screenshots SCREEN amp SETUP Stores screenshots and settings PRINT Prints directly to a compatible printer Postscript some PCL and PCLX capable printer 44 If you press the respective soft menu key to activate the required operation the corresponding menu will be dis played with a blue background Press the MENU OFF key to quit the selection menu If you press the FILE PRINT key the selected function will be performed Fig 10 8 Definition of FILE PRINT key sew F TRACES FILE EI PRINT ES w FILE E ios PRINT 2 a br amp ser COR Cam 11 Component test 11 1 General The oscilloscopes 72 202 have built in component tester his can be activated by pushing the XY CT mode button and switch on CT at the upcoming menu at the top The unit under test is connected to the two co
35. t he duration of the bit pattern which will generate the trigger is unequal to the reference time rt t he duration of the bit pattern which will generate the trigger is equal to the reference time I ti lt t he duration of the bit pattern which will generate the trigger is smaller than the reference time I ti gt t he duration of the bit pattern which will generate the trigger is greater than the reference time 27 Trigger System 1 t1 lt tj lt t2 The duration of the bit pattern which will generate the trigger is smaller than the reference width to and greater than the reference width t1 i not t4 ti t2 The duration of the bit pattern which will generate the trigger is greater than the reference width 12 and smaller than the reference width t1 By the same procedure as with pulse trigger the reference time is adjusted with tj t and ti t by turning the universal knob after pushing the soft key next to TIME By selecting DEVIATION the universal knob allows you to define a to lerance interval If ti lt t or ti gt t was chosen only one limit may be set Both options with two references t1 and t2 can be set due to pressing the respective soft key and tur ning the universal knob As with the pulse trigger for ti zt or t you can set a re ference time with the soft menu key TIME and the univer sal knob Selecting the soft menu item DEVIATION allows you to use the universal knob in the CURSOR MENU con tr
36. test must always be perfor med after parts relevant to safety have been replaced vi sual inspection PE conductor test insulation resistance measurement leakage current measurement functio nal test This helps to ensure the continued safety of the product 1 7 Mlaintenance 1 Clean the outer case of the oscilloscope at regular intervals using a soft lint free dust cloth Before cleaning the instrument please make sure that it has been switched off and disconnected from all power supplies 1 No instrument parts may be cleaned with alcohol or other cleaning agents The display can be cleaned using water or a glass cleaner but not with alcohol or other cleaning agents Thereafter wipe the surfaces with a dry cloth No fluid may enter the instrument Do not use other cleaning agents as they may adversely affect the labels plastic or lacquered surfaces 1 8 CATO This oscilloscope is destined for measurements in circuits not connected to the mains or only indirectly The instru ment complies with measuring category make sure that the input voltage does not exceed 200 V peak 150 Vrms at 1 input impedance 5 at 500 input im pedance Transient overvoltages must not exceed 200V peak When performing measurements in circuits with transient overvoltages higher than category make sure that no such overvoltages reach the instrument input To ensure this use only probes that comply with DIN EN 61010 03
37. those up to 16 digital channels can serve as trigger sources he soft menu key AC LINE enables you to trigger the trigger at system frequency The trigger signal is extracted internally from the power supply 6 3 Slope trigger The easiest and by far the most frequently used trigger is the slope trigger The oscilloscope triggers if slopes that were set with the SLOPE key occur within the signal se lected in the SOURCE menu The signal slope has to pass through the set trigger level TB 500ys T Os 1MSa Fig 6 3 The type B Trigger The trigger type Slope Trigger is selected in the Autosetup mode AUTOSET key If for instance you select the pulse trigger and press the AUTOSET key the setting will switch to Slope Trigger The TYPE 3 key in the trigger control panel allows you to set the trigger type This opens a menu with corresponding options If the SLOPE type is not ac tive highlighted in blue you can press the respective soft menu key to select this type The slope type rising falling or both can be set directly with the SLOPE key 35 This will shift the setting forward by one i e from rising to falling slope to both slopes and pressing the key yet one more time will trigger another rising slope The center of the sta tus line on the top of the display and the display above the SLOPE key 35 show which slope type has been selected The FILTER 36 key allows you to select how to couple the signal for the
38. transmission was successful exception for read access the master terminates the data transmission with a NACK bit after the last byte i Data a series of data bytes with a ACK bit after each byte Stop condition rising slope on SDA Serial Data while SCL Serial Clock is HIGH START ADDRESS R ACK ACK condition condition Fig 13 5 IC 7 bit address 13 4 1 12C BUS Configuration Prior to the BUS configuration it is necessary to set the correct logic level for the digital channels see chapter 11 2 or the ana log channels see chapter 4 5 The default setting for both is 500 mV Make sure that a complete message of a serial protocol is always displayed on the screen to ensure decoding can function pro perly The Zoom function allows you to view details for any spe cific message To decode the 12 bus it is necessary to determine during the bus configuration which logic channel will be connec ted to the clock and which one to the data line This set ting is selected after choosing the BUS TYPE 2 in the 500MSa su yy ARA SDA E LJ VI SCL CH1 504m SDA CH2 500mVv Fig 13 6 Menu for the definition of I4C sources BUS menu and pressing the soft menu key CONFIGURA TION In the menu choose the top soft menu key CLOCK SCL and use the universal knob to select the source chan nel You can define the data channel by pressing the soft menu key DATA SDA A small window provides informa tion about t
39. window The adjustable comparison type is a search criterium for the detected time event width The pulse width is the time period between start and stop slope of the pulse Peak The peak search function searches for pulses within the signal The time of the event is the maximum value of the peak Rise time fall time This function searches for slopes with a specific rise fall time within the signal The point in time of a detected slope corresponds to the point in time when the signal leaves the set hysteresis The upper and lower level define the upper lower position of the hysteresis he adjusted level will display in the signal window The adjustable comparison type is a search criterium for the detected time event width Runt runt is an aborted pulse within a signal This occurs when the rise times of the system are greater than necessary for the desired pulse width positive runt exceeds the lower level of the hysteresis for instance but does not reach the upper level analyzing digital circuits of this signal fail to detect the pulse which leads to transmission errors The pulse width of the runt is defined by the entry and exit point from the hysteresis duration between start and stop slope of the pulse The adjustable comparison type is a search criterium for the detected time event width The difference defines the maximum time range by which the specified event width may vary Once you have selected the appropr
40. 1 When performing measurements in category Il Ill or IV circuits it is mandatory to insert a probe that appropriately reduces the voltage so that no overvoltages higher than category are applied to the instrument Direct measurements i e with a galvanic connection to circuits corresponding to the categories Il 111 or IV are prohibited The measuring circuits are considered not connected to the mains if a suitable isolation transfor mer fulfilling safety class Il is used Measurements on the mains are also possible if suitable probes like current pro bes are used which fulfill the safety class The measure ment category of such probes must be checked and ob served he measurement categories were derived cor responding to the distance from the power station and the transients hence to be expected Transients are short very fast voltage or current excursions which may be pe riodic or not Installation and safety instructions Measurement Categories The measurement categories refer to transients from the power system Transients are short very fast steep rent and voltage variations which may occur periodically and non periodically The level of potential transients in creases as the distance to the source of the low voltage in stallation decreases Measurement CAT IV Measurements at the source of the low voltage installations e g meters Measurement CAT Measurements in building installa tions e g pow
41. 2 Use the soft menu key BUS TYPE and the installed options HOO10 HOO11 HOO12 to choose from the following BUS types 1 Parallel standard 1 Parallel Clock Standard SSPI 2 wire HOO10 HOO11 SPI 3 wire HOO10 HOO11 1 12C HOO10 HOO11 1 UART HOO10 HOO11 1 CAN HOO12 1 LIN HOO12 500 MSa Parallel Clocked SSPI 2 Wire SPI 3 Wire El CONFIGURATION UART CAN LIN DISPLAY SETUP POD1 500 mv The soft menu key CONFIGURATION allows you to invoke a menu corresponding to the selected bus type A menu description can be found in the chapters of the respective BUS configuration The soft menu DISPLAY SETUP is iden tical for all buses and allows you to select the decoding format You may choose from the following formats 1 Binary 1 Hexadecimal Decimal 1 ASCII TB 10yus T Os Trig 7 04min Hexadezimal Dezimal ASCII POD1 500mv 25MSa Serial bus analysis Use the soft menu key BITS to activate or deactivate the display of individual bit lines above the table display The soft menu key NAME allows you to rename a bus see chapter 4 6 The soft menu BUS TABLE allows you to configure ex port a list of all decoded messages in storage The table content is protocol specific and the table display can be activated for each individual BUS type The top soft menu key BUS TABLE allows you to activate or deactivate the list view By default the table is displayed at the bottom of the screen Ge
42. 24 Trigger 25 Trigger modes Auto Normal Single 29 rigger 26 Slope 26 6 4 6 6 7 52 129 7 4 8 1 8 2 9 1 9 2 9 3 9 4 10 10 1 10 2 10 3 10 4 10 5 10 6 11 11 1 11 2 12 124 125 12 3 12 4 13 13 1 13 2 13 3 13 4 13 5 13 6 137 13 8 14 14 1 14 2 14 3 13 4 15 16 16 1 16 2 Content PUSS tte e ues rue awe een Ede Se es ore eb Ma dem a 26 eler M 27 Video 28 Display of signals 29 Display Seins Cc 29 Use of the virtual screen area 30 oignal intensity and persistence functions 30 Da NSO B 5 32 Cursor measurements 32 Auto 5 ER Analysis 36 Mathematical 36 Frequency Analysis FFT 38 QUICK VIOW aise end eh ee ohn wee da eek 39 PASS FAIL Test Based on 39 Documentation storing and recalling 41 Instrument settings 41 References 42 PT 42 Screenshots 43 Formula 44 FIL
43. 26 in the VERTICAL control pa nel will activate a short menu The lowest soft menu key OM MA activates Quick Mathematics or the formula edi tor OM stands for Quick Mathematics and MA for die Ma thematics Advanced formula editor You can toggle bet ween the two mathematical functions by pressing this soft menu key 36 The soft menu keys in the OM menu allow you to confi gure the Quick Mathematics function With the first and the third soft menu key you can choose the respective channel source for the Quick Mathematics calculation You may only choose activated analog channels The cen tral soft menu key allows you to select the calculation type 250MSa Refresh CH2 2V 2 addition ADD subtraction SUB multiplication MUL or division DIV Pressing the MENU key in the VERTICAL control panel will switch you to a more detailed display of the OM menu You can use the universal knob to select operands and operators The formula editor menu soft menu key MAJ allows you to activate and deactivate mathematical equations that are defined and displayed within the selected formula set The TB 215 T Os 250MSa Formulary Editor Formulary 1 EQUATION lt ADD CH1 CH2 EDIT MAI o lt Depay m OPERATOR quare OPERAND 1 OPERAND 2 list only includes visible equations Four out of five func tions from the current formula set can be displayed simul taneously The bth curve may be used a
44. 500 mV le EE Ia NBI Ls Dees oa PAGE 2 2 Hanae eS Fig 2 7 Selection of basic soft Fig 2 8 Basic soft menu elements menu elements for settings and navigation The menus are used as shown in Fig 2 8 if they concern functions which have either to be switched on or where values have to set The choice is between OFF and the va lue presented The round arrow in the right corner of the menu window points to the universal knob which is to be used for selecting the value If there is a lower menu level this will be indicated by a small triangle in the right lower corner of the respective menu point If there are further pages on the same level the lowest menu point will be used for navigation It shows the num ber of menu pages on this level as well as the activated number of pages Pushing the respective soft menu key will advance by one page after the last page the first one will follow 2 Basic settings and integrated help Basic settings like language for user interface and help miscellaneous settings and interface settings can be set using the menu which opens after pressing the SETUP key in the GENERAL area of the control panel On the first page you can set the user interface and help language by pressing the soft key LANGUAGE and select German or English The soft key beside MISC opens a menu with the following selections i MENU OFF choose manual or
45. AUX CURSORS This soft menu allows you to define the settings for auxiliary cursors Pressing the function keys enables you to activate or deactivate the cursors The menu item DEFAULTS resets the default settings 7 2 Use of the virtual screen area The graticule for the HMO series includes 8 vertical divi sions but also has a virtual range of 20 divisions These 20 divisions may be used entirely by the optional digital chan nels DO to D15 the mathematical channels and the refer ences signals The analog channels may use up to 5 divi Fig 7 1 Drawing of the virtual screen area and an example sions from the center Fig 7 1 illustrates the functionality of the virtual screen The display includes a section of 8 vertical divisions in gray This section enables you to display analog signals The small bar next to the graticule indicates the position of the 8 visible divisions within the available 20 divisions By pressing the SCROLL BAR 5 the bar will be activated and displayed in blue and you can use the universal knob to shift the 8 visible divisions gray section within the avail able 20 divisions This allows a simple and clear display of many individual signal portions 7 3 Signal intensity and persistence functions In the standard mode the key INTENS PERSIST will light up white the intensity of the signal display can be chan ged with the universal knob from 0 to 100 9o The persis 30 TB 10us 0 GC
46. Advanced FFT menu each signal parameter change the envelope curve will be reset Average This mode calculates the mean value from several spectra It is applicable for noise reduction The soft menu key AVE RAGES allows you to select the number of spectra used to calculate the mean value by setting the universal knob in the power of 2 from 2 to 512 The menu entry POINTS allows you to select the maxi mum number of capture points to be included in the cal culation by using the universal knob The possible settings are 2048 4096 8192 16384 32768 65536 points The soft menu WINDOWS allows you to improve the FFT display in case of irregularities at the margins of the mea surement interval Irregularities are calculated as a leap by a computing algorithm and interfere with the measure ment result In the event of a bell shaped window function the margins with lower values are multiplied and the im pact is damped The soft menu item WINDOW allows you to choose from the following window functions Hanning The Hanning window function is bell shaped In contrast to the Hamming window function it is equal to zero at the margin of the measurement interval Therefore the noise level is reduced in the spectrum and the width of the spec tral lines is increased This function is useful for a precise amplitude measurement of a period signal for instance Hamming The Hamming window function is bell shaped In con trast to the Hanni
47. Digital Oscilloscope Mu HMO series 72x 202x 10 200 MHz User Manual 02024 200M Hz 26Sa 2mp DIGITAL Oscittg KZEKO nmm 1 D CH 9 29h Won San iwel MENU ENT TESTER USB STICK LOGIC CHANNEL POD 7 0 A Use recommended probe only A 14 200 Vp User Manual Test amp Measurement General information regarding the CE marking HAMELS Instruments A Rohde amp Schwarz Company KONFORMITATSERKLARUNG DECLARATION OF CONFORMITY DECLARATION DE CONFORMITE DECLARACI N DE CONFORMIDAD Hersteller Manufacturer Fabricant Fabricante HAMEG Instruments GmbH IndustriestraBe 6 D 63533 Mainhausen Die HAMEG Instruments GmbH bescheinigt die Konformitat f r das Produkt The HAMEG Instruments GmbH herewith declares conformity of the product HAMEG Instruments GmbH d clare la conformite du produit HAMEG Instruments GmbH certifica la conformidad para el producto Bezeichnung Oszilloskop Product name Oscilloscope Designation Oscilloscope Descripci n Osciloscopio Type Tipo HMO722 24 HMO1022 24 HMO1522 24 HMO2022 24 mit with avec con HO720 Optionen Options Options Opci nes HO730 HO740 mit den folgenden Bestimmungen with applicable regulations avec les directives suivantes con las siguientes directivas EMV Richtlinien EMC Directives Directives CEM Directiva
48. E PRINT Key Definition 44 Component 1251 45 45 Je erger ug ci LLL 4b Mixed Signal Operation 46 Beie dere SEENEN 46 Display functions of the logic channels 46 Cursor measurements for the logic channels 47 Auto measurements for logic channel 48 Serial bus analysis 48 The options HOO10 HOO11 and HOO12 48 serial Bus Configuration 48 Farel Tcr 50 Fe Bs PUER 50 JP Dor coo ek okea eee taagnes exe aes UAHRI BS 292 BUS sess ea RR kias 54 CAN BU act 56 5 6 Lr 57 Remote 59 DL 59 DE Me E 59 Ethernet Option HO730 59 IEEE 488 2 GPIB Option HO 40 OS 5 60 Appendix 62 List of figures 62 SIOSS arne ches RR RAM E 63 Installation and safety instructions 1 Installation and safety Instructions 1 1 Symbols 1 o 8 5 6 7 8 symbol 1 Caution general danger zone Refer to product documentation Risk of electric shock Ground Stop Risk harm to instrument PE terminal ON OFF supply voltage Stand by display Ground terminal Symbol 2 Symbol 3 Symbol 4 Symbol 5 Symbol 6 Symbol 7 Symbol 8 1 2
49. HMO generates a bOHz or 200 Hz 10 96 sine wave which feeds the series connection of the test object and a sense resistor N Only discharged capacitors may be tested If the test object has only a real part such as a resistor both voltages will be in phase the display will be a straight line more or less slanted Is the test object short circuited the line will be vertical no voltage current maximum If the test object is open circuited or missing a horizontal line will appear voltage but no current The angle of the line with the horizontal is a measure of the resistance value al lowing for measurements of resistors between and kQ Capacitors and inductors cause phase shift between vol tage and current and hence between the voltages This will cause displays of ellipses The location and the form factor of the ellipse are determined by the apparent impe dance at 50 Hz resp 200 Hz Capacitors can be measured between uF and mF Component test 1 An ellipse with its longer axis horizontal indicates a high impedance small capacitance or large inductance 1 An ellipse with its longer axis vertical indicates a low impedance large capacitance or small inductance 1 An ellipse with its longer axis slanted indicates a relatively large resistive loss in series with the impedance of the capacitor or inductor With semiconductors the transition from the non conduc ting to the conducting state will be indicated in their ch
50. MHz frequency There is a setting AUTOMATIC which means that for time base settings up to and including 50 us DIV the probe ad just output is 1 MHz from 100 us DIV on it is switched to 1 kHz The integrated help function can be activated by pressing the key HELP in the GENERAL area of the control panel A window will open and the text inside is dynamically upda ted depending on the key including softmenu key s you are pushing or the knob you are turning If you do not need the help anymore you can switch off the help window by pushing the HELP key The backlight of the key and the text window will be switched off 2 8 Bus Signal Source The HMO series features 4 contacts left of the channel 1 which provide the following signals according to the re spective settings Square wave signal for probe compensation standard setting frequency 1 kHz or 1 MHz SPI signal data rates 100 kbits s 250 kbits s or 1 Mbits s IC signal data rates 100 kbits s 400 kbits s or 1 Mbits s UART signal data rates 9600 bits s 115 2 kbits s or 1 Mbits s parallel stochastic bit pattern frequency 1 kHz or 1 MHz parallel counter signal frequency 1 kHz or 1 MHz The contact at the top left is always ground the signal le vels are around 1 V The following table shows the use of the 4 outputs 51 52 53 and TL corresponding to the signal Introduction Press the key SETUP in the general area of the front pa nel for entry in
51. N is activa ted a scroll bar will display to the right of the display gra ticule Use the universal knob to upload and download the display window within the 20 divisions of the virtual screen You will find a detailed description of the VIRTUAL SCREEN option in the next chapter The following settings can be selected i DOTS ONLY If this option is activated ON only the acquired data points will be shown This means that the data points of all signals will not be connected by vertical lines If this option is deactivated OFF interpolated data points will also be shown INVERSE BRIGHTN This setting inverts the brightness of the displayed signals Normally frequently captured dots will be displayed more brightly than rare dots The INVERSE BRIGHTNESS option reverses the circumstances Rare events display a higher brightness compared to frequent events To capture rare events in a signal this setting can be used in combination with persistence FALSE COLORS This setting converts the brightness levels of the displayed signals to a color scale ranging anywhere from blue magenta red and yellow to white Thanks to the higher contrast users can view signal details more easily his setting applies to all signals simultaneously GRID This soft menu allows you to display the graticule as LINES the graticule is divided into horizontal and vertical divisions as CENTER CROSS displays one horizontal and one vertical zero
52. ORMAL always includes more samples in the memory than what can be shown in the display That explains why in this mode you are able to zoom in on the memory The same does not apply to the values in the Y axis amplitude These values apply to a specified axis and can therefore also be scaled in ROLL mode 5 6 Navigation Function The Navigation function offers easy trigger time hand ling and allows it to be entered numerically The soft menu keys allow you to set the trigger time to the minimum or 23 Horizontal System Time Base the maximum value for instance You can use the soft menu key TIME REFERENCE to define where in the sig nal window to find the trigger point value 707 The signal Is scaled by this reference point You can use the univer sal knob in the Cursor Menu section to select the desired setting 5 7 Marker Function Markers allow you to highlight specific positions on the screen e g a rising or falling slope an unexpected signal value or a search result Markers can be used to identify specific signal sections to zoom in on and to analyze the data more closely Use the soft menu to activate the marker function Press the MENU key in the HORIZONTAL section of the control panel to open the soft menu Use the universal knob in the menu to select MARKER Once this mode is activated you can press the SET CLR key to set a time marker at the 6th time unit the menu in the center of the grid must be deac tivat
53. S Menu for the definition of a SPI bus SPI trigger menu SPI data trigger menu UART bit sequence Page 1 of the menu to define a UART bus Page 2 2 UART BUS setup menu Trigger menu UART data UART trigger menu page 2 Setting the SAMPLE POINT during the CAN configuration CAN data trigger menu Layout LIN byte structure Menu for the definition of a LIN bus LIN data trigger menu web server with device data 49 50 50 50 51 51 91 02 92 52 99 O9 53 54 54 DS 55 99 56 56 S 57 58 99 16 2 Glossary AC coupling 18 acquisition memory 23 acquisition mode 8 20 23 30 acquisition modes 8 ADJ output 14 amplitude 15 analog channel 12 19 24 46 56 attenuation 18 19 automatic measurement 7 33 35 37 automatic measurements 16 32 33 35 39 AUTOMATIK 22 AUTOSET 7 14 15 26 Average 20 22 39 B bandwidth 2 9 18 Bandwidth Limit 19 Blackman 39 BNC connector 8 9 14 brightness 28 29 30 31 BUS configuration 48 49 50 51 53 54 56 57 58 bus signal source 7 11 40 bus type 47 49 50 54 56 57 E CAN Bus 56 capacitor 45 component tester 8 45 COM port 59 coupling 14 18 26 cursor measurements 9 15 32 33 CVBS signal 28 D DC coupling 14 18 26 DC offset 19 duty cycle 15 32 DVI D connector 9 E ENVELOPE 20 ethernet 59 F fall time 24 32 34 39 FILE NAME 17 41 42 43 FILE PRINT 7 17 44 formula ed
54. STATE allows you to set the state 1 L 40 or X don t care for each bit The state X de fines any state If the input is hexadecimal only the entire byte can be set to X TB 50ps T 216us Refresh on pe ID Len 197 892us Read 2D 28 000ns Write 42 5 110 55031 OK 8 EBBSDCSSSAESDGFCO OK A113B7263E5B OK 6 S5CSEB71D9E8 OK il 2 3 217 740us Write 3B 4 376 072us Read OE Samples 1 5 5 Data 0x4113B7263E5B Fig 13 10 Example I2C BUS with BUS table If you choose the hexadecimal input use the soft menu key VALUE and the universal knob to set the respective byte value The soft menu key SELECT BYTE allows you to edit the different bytes byte 1 to byte 2 to byte 3 etc se quentially depending on the defined NUMBER OF BYTES The active byte will be marked with a green border in the display window of the trigger condition see fig 13 9 Press the MENU OFF button three times to close all me nus and the oscilloscope will trigger on the set address and data 13 5 SPI SSPI BUS The Serial Peripheral Interface SPI is used to communicate with slow peripheral devices in particular for the transfer of data streams The SPI bus was developed by Motorola to day known as Freescale however it has not been formally standardized Generally this is a bus with clock and data lines and a select line 3 wire If only one master and one 52 slave are present the select line may be deleted
55. Setting up the instrument As you can see from the picture there are small feets on the bottom which can be folded out Please make sure you have fully folded out the feet s in order to ensure stability of the instrument Fig 1 1 Operating positions The instrument must be installed in a way that at any time the disconnection of the power line is not restricted 1 3 Safety This instrument was built in compliance with VDE 0411 part 1 safety regulations for electrical measuring instru ments control units and laboratory equipment It has been tested and shipped from the plant in safe condition It is in compliance with the regulations of the European stan 4 dard EN 61010 1 and the international standard IEC 1010 1 To maintain this condition and to ensure safe operation the user must observe all instructions and warnings given in this operating manual Casing chassis and all measuring ports terminals are connected to a protective earth con ductor safety ground of the mains The instrument Is de signed in compliance with the regulations of protection class The exposed metal parts have been tested against the main poles with 2200 Vpc voltage For safety reasons the instrument may only be connected to properly installed safety socket outlets The power plug must be inserted before signal circuits may be connected Separating the grounds is prohibited If it is assumed that a safe operation is no longer possible the instr
56. T and the universal knob Documentation storing and recalling you can choose the HDS binary data or the SCP plain text format In contrast to the HDS format device settings in the SCP mode can be also loaded after firmware up date Instrument settings in the HDS format from a pre vious firmware version cannot be loaded with a new firm ware version The option SAVE allows you to store the settings To reload stored preference files press the respective soft menu key to open the soft menu LOAD This opens the file manager where you can use the universal knob to select the respec tive file 250MSa STORAGE nterna FILE NAME Once the storage location and the respective settings file has been selected you can load the file by pressing the soft menu key LOAD To remove files that are no longer re quired you can use the universal knob to select the respec tive settings file and remove it by pressing the soft menu key REMOVE FILE If a USB stick is connected you can also change and delete directories Use the soft menu key SORT ENTRIES to sort several settings files by name type size or date TB 200us T Os 25 5 SELECT AN EXISTING SOURCE FILE INT SETTINGS STORAGE Ske Rear Name ize ee oS AECL HS 3283 2000 01 01 00 39 R amp S HDS R amp SOO01 HDS R amp S0002 HDS I 2C HDS SSPI HDS UART HDS File comment 01 20 REMOVE FILE The soft menu IMPORT EXPORT allows you to copy a file from an int
57. The information field in the lower left corner of the screen will show the actual logic levels selected next to the name POD The Y positions and the size of the logic channel displays can be chosen as customary and known from analog You must always set the level to indicate a High and a Low POD is activated press the MENU button 21 in the VERTICAL section of the control panel to display the menu This will allow you to set the level to distinguish between the logic states For each POD you can activate one of five predefined logic level set tings TTL CMOS ECL and two of these may be user defined USER 1 USER 2 channel operation with the appropriate knobs Y POSITION and SCALE VOLTS DIV provided the soft menu key 0 7 was selected as indicated by a blue background If less than 8 logic channels are to be displayed or if the position of individual channels is to be changed this can be done in the short menu in conjunction with the soft menu keys and the Y POSITION and SCALE VOLTS DIV controls In order to do this push the soft menu key next to CTRL this will allow you to control the Y position and the size of the logic channel display with the knobs The name of which will be shown above the menu entry in this example num ber 0 The selection of the channels is done with the soft keys Arrow Up and Arrow Down By this method all chan nels may be individually positioned and sized You can reset the position and size
58. The large grid shows the XY display while the small grids show the source for X Y1 Y2 and Z The small windows feature the classical signal display as Y vs time It is pos sible to define two signals as the Y input and display this vs the x input to perform a comparison It is necessary to show the menu to determine which input signal is de fined as X Y1 Y2 or Z To do so press the XY key again The menu that opens allows you to assign X and Y2 accordingly Press the soft menu key ZSETTINGS to determine the set tings for the Z input The function SOURCE Z allows you to use any of the analog channels as source for the Z input Use the universal knob to select the desired setting The Z input allows you to control the brightness of the XY sig Refresh TB 500 ns SOURCE Z CH4 Z INTENSITY Modulation 3 On Off THRESHOLD N P Fig 7 4 Settings for the 2 input Display of signals nal This can be static or dynamic by setting an adjustable threshold or by modulating the brightness with the ampli tude change of the Z input In the MODULATION setting large amplitudes of the Z source will display the XY points The transition is continuous The setting On Off displays values below the selected threshold of the Z source and the XY points with the lowest brightness ON OFF Values exceeding the threshold will be displayed with the selec ted brightness There is no transition between the two sta tes You ca
59. This type of line is also called SSPI Simple SPI 2 wire The HMO series supports the following bit rates for mea surements without measuring object via BUS SIGNAL SOURCE 100 kBit s 250 kBit s and 1 1 MBit s TB 100us T Os 100 kBit s Output SPI Data 1MBit s Level ca 1V Pin Assignment 250 5 52 Clock rising slope 53 Data H Active Fig 13 11 SPI BUS signal source Use the soft menu PROBE COMP amp BUS SIGNAL SOURCE to select the respective clock rate in the SETUP menu page 2 2 A SPI BUS has the following properties 1 Master slave communication No instrument addressing No acknowledge to confirm data reception Duplex capability Most SPI buses have 4 common lines 2 data lines and 2 control lines Clock to all slaves SCLK 1 Slave select or chip select lines SS or CS Master Out Slave In Slave Data Input MOSI or SDI Master In Slave Out Slave Data Output MISO or SDO If the master generates a clock pulse and selects a slave data can be transmitted in either one direction or simulta neously in both directions oP ha ster Fig 13 12 Simple configuration of a SPI BUS 13 5 1 SPI SSPI BUS Konfiguration Certain settings are necessary to guarantee that a SPI bus is decoded correctly First you have to determine if a SPI system with or without chip select is available 2 wire or 3 wire SPI This can be done in the BUS setup menu when
60. USB interface 44 59 USB poart 4 9 11 12 USB Stick 7 TT 13 14 36 97 00 410 41742 43 45 49 V video modulation 28 video trigger 28 virtual screen 7 29 30 V MARKER 33 47 48 W Warranty 5 Y Y Output 9 Z Z input 31 20016 19 20 21 22 23 24 25 39 49 DU 53 54 56 57 zoom function 8 20 25 48 Appendix 65 Appendix 66 Appendix 67 Instruments A Rohde amp Schwarz Company MB MIXED SIGNAL OSCILLOSCOPE Boupeascuwanz H HMO3004 Series 7 HAMEG A T eo 10 01906 e 0000 o 00000 Pe 9 value instruments com
61. USES Then press the SOURCE button in the TRIG GER section and choose SPI Bus This will only be availa ble if it was configured earlier Press the FILTER button in the TRIGGER section of the control panel to list all available SPI trigger conditions 500MSa FRAME START cS 00 500 Clock Di1 500mYV Data D2 500m POD1 500 mY The option FRAME START sets the trigger event on the Start of the frame The frame starts when the chip select CS signal switches to the selected active mode By con trast FRAME ENDE sets the trigger event on the end of the frame The frame ends when the chip select CS sig nal switches from the selected active to the inactive mode The soft menu key BIT and the universal knob allow you to select the trigger time to the set bit within the set bit se quence You can also enter a numeric value to determine the desired bit number KEYPAD button 500 BIT OFFSET OBit NUMBER OF BITS 19 PATTERN INPUT Last Bin Elter soso 294994 59995 LOSS 1 0 5 0 Pattern SELECT NIBBLE Cone CS DO 500m Clock 01 500 m Data D2 500mVv VALUE 0x5 POD1 500 mV 53 Serial bus analysis Use the soft menu SER PATTERN to define a specific bit sequence within the frame which start the trigger event The soft menu key BIT OFFSET allows you to select the first bit of the predefined bit sequence within the frame The bits in fron
62. View parameter measurement Auto Measure menu Selection of parameters Measuring the parameters of two sources Formula editor Save Recall menu Menu Screenshots Defining a file name Front panel area with vertical system controls Short menu for the vertical settings Correct connection of the probe to the probe adjust output Vertical offset in the extended menu Name selection Threshold setting and name allocation Control panel of the horizontal system AM modulated signal with maximum repeat rate AM modulated signal with maximum sampling rate AM modulated signal with automatic setting Zoom function Marker in zoom mode Search mode with event list Front panel control area of the trigger system Coupling modes with slope trigger The type B Irigger Pulse trigger menu 12 P 13 19 14 14 14 14 15 15 15 Je 16 16 16 16 17 17 17 18 18 18 18 T9 19 20 21 22 22 20 24 20 29 25 26 2 Fig g Fig Fig T Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig 6 5 6 6 6 7 Sch 7 2 Ja Ou OU gT 92 Ja 9 4 d SD 9 7 10 T 10 7 10 3 10 4 10 5 10 6 10 7 10 8 T3 le loz US 13 6
63. a racteristic As far as 15 possible with the available voltages and currents the forward and backward characteristics are displayed e g with zener diodes up to 9 V Because this is a two pole measurement the gain of a transistor can not be determined however the B C B E C E diodes can be measured Please note that most bipolar transistors can only take an E B voltage of approx 5 V and may be damaged if this is exceeded sensitive hf transistors take even much less With this exception the diodes can be measured without fear of destruction as the maximum voltage is limited to 9 V and the current to a few mA This implies however that a measurement of breakdown voltages 9V is not possible In general this is no dis advantage because if there is a defect in a circuit gross deviations are to be ex pected which will point to the defective component Rather exact results may be achieved if the measurements are compared to those of intact components This is es pecially true for semiconductors The polarity of diodes or transistors can thus be identified if the lettering or marking Is missing Please note that with semiconductors changing the pola rity e g by exchanging the COMP TESTER and ground ter minals will cause the display to rotate 180 degrees around the screen center More important in practice is the quick determination of plain shorts and opens which are the most common causes of requiring service It is highl
64. aces are assigned and you wish to install another one you first need to delete one language The information window will now display the languages in stalled the date and the information about the languages available on the stick With the soft menu languages may be added removed or updated Please note the format of the date YYYY MM DD according to the multi language norm of ISO 8601 2 10 Upgrade with software options The HMO may be upgraded with options which will be come accessible after inputting a licence key At this time the options HOO10 HOO11 HOO12 are available The HOO10 allows triggering and decoding of up to two of the serial buses I2C SPI UART RS 232 on the digital chan nels with option HO3508 and or the analog channel The HOO11 can only use the analog channel The HOO12 al lows triggering and decoding of up to two of the serial bu ses CAN LIN on the digital channels with option HO3508 and or the analog channel The licence key will be sent to you by email as an appen ded data file name SERIAL NUMBER hlIk This file is an ASCII file and may be opened with an editor then the true key can be read TB 200ns T Os READ KEYS FROM LICENCE FILE INPUT KEY HOO10 Runtime unlimited 1 HOO10 Runtime unlimite MANUALLY Key FD907D5BA47C41bEADFFF0797C273336C 2 HOO11 Runtime unlimited Key 86619DA02E38EA33B62AD1691D98D27E 3 HOO12 Runtime unlimited Key EC7DA902D5B717F2431bEBAD1D1A146F3
65. age Envelope Peak Detect Filter Roll free run triggered HiRes Sinx x linear sample hold Off alte e 0 to 8 million x 1 samplerate 0 to 2 million x 1 samplerate up to 2 000 waveforms s dots vectors persistence typ 10 traces Operation Measuring Interfaces Operation Save Recall memories Frequency counter 0 5Hz to 250 MHz Accuracy Auto measurements Measurement statistic Cursor measurements Search functions Interface Optional Display functions Marker Virtual Screen Bus display Mathematic functions Number of formula sets Sources Targets Menu driven multilingual Autoset help functions multilingual typ 10 complete instrument settings 6 digit resolution 50 ppm Amplitude standard deviation Vop Vos Vp Vims Vavg Vtop V base frequency period pulse count twidth twidth tdutycycle tdutycycle tRise10_90 tFall10_90 tRise20_80 tFall20 80 pos edge count neg edge count pos pulse count neg pulse count trigger frequency trigger period phase delay Min max mean standard deviation number of measurements for up to 6 Functions AV At 1 At f V to Gnd Vt related to Trigger point ratio X and Y pulse count peak to peak peak peak mean value RMS value standard deviation Search and Navigation functions for specfic signal parameter Dual Interface USB type B RS 232 HO720 2 x USB type A front rea
66. an and the standard deviation o values of a signal between the two cursors Duty cycle This mode provides three cursors in order to calculate the duty cycle of the signal between the two horizontal cur sors he third vertical cursor will set the level at which the duty cycle is determined Rise time 90 This mode provides 2 cursors in order to measure the rise and fall times between the two cursors The rise and fall time are measured between 10 to 90 of the signal amplitude Rise time 80 This mode provides 2 cursors in order to measure the rise and fall times between the two cursors The rise and fall time are measured between 20 to 80 of the signal amplitude V MARKER This mode provides 2 cursors in order to measure two dif ferent voltages and a time span The values V1 and V2 re present the voltages between the zero base line and the re spective cursor AV represents the voltage difference bet ween the two cursors At represents the time difference bet ween them If the function AUTOM SOURCE is activated On the currently targeted channel will be used as source for the measurement If the setting is deactivated Off the chan nel set under SOURCE will be applied even if it is not tar geted The soft menu key SOURCE allows you to se lect a source for the measurement by using the universal knob Pressing the soft menu key SET TO TRACE places the selected cursors in their optimal position on the sig nal curve
67. an value A low result indicates that the values are close to the mean value A higher result illus trates that on average the difference between the values is greater DELAY This mode measures the time delay between the set mea surement source and the reference source his mode searches for the slope of the measurement source that is closest to the time reference Then beginning from this point it searches for the nearest slope of the reference source his time difference indicates the measurement re sult A submenu DELAY SETTINGS allows you to select the setting for measurement source reference source and slopes PHASE This mode measures the phase between two slopes of two channels in the displaced view of the screen This mode measures the relation of the time delay between the set sources to the signal period of the measurement source his mode searches for the slope of the measure ment source that is closest to the time reference Then be ginning from this point it searches for the nearest slope of the reference source The time difference and the signal period indicate the measurement result in degrees A sub menu MEASUREMENT SOURCE REFERENCE SOURCE allows you to select the measurement source and the ref erence source COUNT This mode counts positive pulses in the displayed view of the screen A positive pulse consists of a rising slope fol lowed by a falling slope The mean value is calculated from the a
68. ch on the name display on the right side of the grid The name is fixed to the channel and will move over the screen whene ver the channel will be moved TB 500ns T Os BIBLIOTHEK 2 Nutzerdefiniert NAME EDITIEREN Fig 4 6 Name selection 19 Horizontal System Time Base 5 Horizontal Sys tem Time Base As well as time base settings the horizontal system compri ses the selection of the trig ger position the zoom func tions and the available modes of signal capture the control for the marker function and the search fcuntions HORIZONTAL POSITION TIME DIV F SELECT WINDOW The knobs are used for the adjustment of the time base speed and the trigger posi tion The signal capture mo des are selected in the respec tive menus There is a key pro vided for activating the zoom function Fig 5 1 Control panel of the horizontal system 51 Capturing modes RUN and STOP The capturing modes can be selected with the key RUN SIOP In RUN mode signals will be continuously captu red depending on the trigger conditions selected and dis played erasing the previously captured ones If it is desi red to store and further analyze a signal and to prevent it being overwritten capture must be stopped by pushing the RUN STOP key While in STOP mode capture is disab led and the key will light up red 5 2 Time base adjustments The large knob in the Horizontal section of the control
69. ciated Cursors off pos pulse width neg pulse width soft key pos duty cycle neg duty cycle Thus by simply pressing a key you see 14 parameters at a In addition to cursor measurements the most important glance which characterize the signal This function applies signal parameters can be displayed always to the acutal active channel 15 A quick introduction You may also display up to six parameters of different sig nals In order to achieve this deactivate the Quick View function by pressing the key again then activate channel 2 by pressing the CH2 key Open the following menu by pressing AUTOMEASURE Itf TB 500yus 05 MEAS PLACE 1 MEASURE 1 Off Rise Time 80 2 SOURCE CH1 PAGE 1 2 E CH2 SmV Press the softmenu key beside MEAS PLACE and choose the number you want using the universal knob You may define the parameter measurement using this menu Af ter switching on the MEASUREMENTS with the appropri ate softkey s the parameter measurements are displayed below the grid If you press the softkey beside TYPE you can choose the parameter you want from the list using the general knob his procedure is used in all menus where choices are available Please press the key TYPE and choose rise time Choose MEAS PLACE 1 and use mean and source Afterwards choose MEAS PLACE 2 and rms from CH2 On page 2 of this menu you can switch on a complete sta MEAS PLACE
70. condition which can be defined sepa rately from the other actions The respective condition can be defined in the menu for the corresponding action Se lect the respective action by pressing the appropriate soft menu key the corresponding soft menu item will be high lighted in blue Press the MENU OFF key to return to the main menu and to start the mask test On the right below the display window you can view the total number and the total duration of the tests in brack ets in white The number of successful tests and their per centage in brackets are displayed in green and the num ber of failures and their percentage in brackets are dis played in red If a test has been started the previously un available soft menu key PAUSE is now activated Press 40 ing the PAUSE key will interrupt the test while the acquisi tion of signals and the total duration are continued If you press the PAUSE key again the test will be resumed and all event counters continue to be incremented If you deac tivate a test by pressing the soft menu key Stop the event and time counters will be stopped If a new test is started by pressing the soft menu key TEST activated Run all counters will be reset and resume at zero The PASS FAIL mode is deactivated by pressing the soft menu key PASS FAIL OFF 200 5 T Os 250kSa TEST Run Stop Kier NEW MASK L t MASK ACTIONS prear 3715 485 Fig 9 7 PASS FAIL mask tes
71. ction pro perly The Zoom function allows you to view details for any spe cific message The soft menu key ACTIVE can be used to determine if the data transfered to the BUS are active high High 1 or active low Low 1 for RS 232 choose Low Use the soft menu key SYMBOL SIZE and the universal knob to select a value between 5 bit to 9 bit for the bits that form a symbol Another setting can be selected via soft menu key PARIT Y Parity bits are used to detect errors during a transmission TB 20 us 1 05 DATA SOURCE Idle Time SBit p Bits 2 lex Bit Source DO High Active Symbolrate 115200Sy s Idle Time 992ns PAGE 1 2 Fig 13 17 Page 1 of the menu to define a UART bus The soft menu PARITY offers the following options i None Use no parity bits 1 Even The parity bit is set to 1 if the number of ones in a specific set of bits is uneven without parity bit i Odd The parity bit is set to 1 if the number of ones in a specific set of bits is even without parity bit The bottom soft menu key STOP BITS allows you to de fine the length of the stop bit 1 single 1 52 1 1 2 or 2 double On page 2 2 of the UART BUS setup menu you can select the BIT RATE symbol rate via universal knob The bit rate defines how many bits are sent per second The soft menu key BIT RATE allows you to select standard numeric va lues Press the soft menu key USER if you wish to define customized rate
72. d TB lOps T Os PERSISTENCE remm Rutomatic m MANUAL 115 CLEAR 2 A J BACKGROUND Fig 7 3 Persistence function the signal curves will become darker in 5Oms steps and erased after 300 ms In this soft menu the function BACK GROUND may be activated in addition then all signal cur ves ever displayed will be shown in the darkest colour This kind of display is for example very useful for the analy sis of extreme values of different signals 7 4 XY display The HMO series features a key that allows you to switch directly to the XY display Two signals will be displayed si multaneously one in Y direction and one in X direction This implicates that the time base X will be replaced by amplitude values of a secondsource The resulting signal curves for harmonic signals are known as Lissajous figures and allow the analysis of frequency and phase position for these two signals In case of a nearly identical frequency the figure will rotate If the frequency is exactly identical the figure will stand still and the phase position can be de duced from its shape You can activate the XY display by pressing the XY key 19 in the VERTICAL section of the control panel The key will be illuminated and the display will divided into one large and three small display areas The following settings apply exclusively to the four channel instruments The two channel instruments only supports the simple XY display
73. d channel and requires a minimum of one complete period of a triggered signal 34 DUTY RATIO This mode measures the negative duty ratio In this mode positive negative portions are identified over a specific pe riod and will then be analyzed in relation to the signal pe he measurement will only be applied to the selected channel and requires a minimum of one complete period of a triggered signal RISE TIME 90 This mode measures the rise time of the first rising slope in the displayed view of the screen he rise time identi fies the time in which the signal rises from 10 to 90 of its amplitude FALL TIME 90 This mode measures the fall time of the first falling slope in the displayed view of the screen The fall time identi fies the time in which the signal falls from 90 to 10 of its amplitude RISE TIME 80 This mode measures the rise time of the first rising slope in the displayed view of the screen he rise time identi fies the time in which the signal rises from 20 to 80 of its amplitude FALL TIME 80 This mode measures the fall time of the first falling slope in the displayed view of the screen The fall time identi fies the time in which the signal falls from 80 to 20 of its amplitude o STD DEVIATION This mode measures the standard deviation of the signal amplitude in the displayed view of the screen The stan dard deviation is the measurement for the deviation of a signal from its me
74. d data will be stored in color with a white background If you press the key SAVE the current screen will be saved immediately to the selected storage location with the se lected name and format 43 Documentation storing and recalling TB 200 5 T Os STORAGE ront EI j FILE NAME CR0037 Se FORMAT BMP COLOR MODE Eolor 9 Fig 10 7 Menu for screenshots The soft menu key PRINT allows you to print a screenshot immediately to a connected printer e g PCL or PCLX as printer language If a printer is detected the soft menu To achieve prints with well defined contrasts when using the color mode INVERTED you should set the curve intensity via INTENS PERSIST and universal knob to approximately 70 key PRINT will no longer be grayed out Press the RUN STOP key to stop acquisition prior to printing which will allow a correct printout The free software HMScreenshot software module of the HMExplorer software enables the transfer of screenshots in bitmap GIF or PNG format from a HMO series oscil loscope via RS 232 or USB interface to a connected PC where the screenshots may then be saved or printed For additional information on the software refer to the inter nal HMExplorer help at www hameg com 10 5 Formula Sets In the soft menu FORMULARIES you can import or export formula sets This allows the data exchange between diffe rent storage media internal memory external USB
75. d automatic measure ment types The equation name is listed in the formula set editor and is used as label in the curve window The soft menu key DELETE removes the equation from the formula set An equation consists of an operator mathematical func tion and up to two operands You can use the universal knob to choose one of the following operators AAddition Neg Wave Subtraction Reciprocal i Multiplication Inverted Division i Common logarithm i Maximum Natural logarithm i Minimum Derivation I Square i Integral Root IIR Low Pass Filter Amount i IIR High Pass Filter 1 Pos Wave For each corresponding equation the input channels CH1 CH2 CH3 CH4 and an adjustable constant are allowed as OPERAND sources For the formula MA2 is added as source for the added source is MA2 for MAA it is and finally 5 the added source is 4 From these five equations you can create save and retrieve a total of five different sets New equations can be added by using the universal knob to select the menu item NEW in the formula set editor Pressing the soft menu key ADD al lows you to edit the new equation Fig 9 4 illustrates how in formula channel 1 is ad ded with 100 uA Press the key EDIT CONSTANT in the menu for entering constants and use the universal knob to choose from the following constants 1 Pi 12x BAR xX FI 1User1 10 up to 10 customized c
76. d nor mal batteries that contain lead mercury or cadmium are hazardous waste Observe the national regulations regarding waste disposal and recycling 1 11 Product Disposal Ho 1 2 Product labeling in accordance with EN 50419 The German Electrical and Electronic Equipment ElektroG Act is an implementation of the following EC directives 2002 96 EC on waste electrical and electronic equipment WEEE and 2002 95 EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment RoHS Once the lifetime of a product has ended this product must not be disposed of in the standard domestic refuse Even disposal via the municipal collection points for waste electrical and electronic equipment is not permitted For the environmental friendly disposal or recycling of waste material we fully assumes its obligation as a producer to take back and dispose of electrical and electronic waste in accordance with the ElektroG Act Please contact your local service representative to dispose of the product 2 Introduction 2 1 Front view On the instrument frontside you can find the power key 1 in order to switch on the instrument or enter stand by mode If the instrument is in stand by mode this key light up red If the instrument is switched off using the main po Please note the connector for the active logic probes H03508 are solely for these probe Connecting anything else could dest
77. e CAN BUS it is necessary to first determine which channel will be connected to the data line This set ting is selected after choosing the bus type CAN in the BUS menu and pressing the soft menu key CONFIGURA TION In the menu that opens you can press the top soft menu key DATA to select the desired channel via univer sal knob An analog or a digital channel can be connected to CAN High or CAN Low In addition it is possible to con nect a differential probe e g HZO40 to an analog channel When using a differential probe select CAN High if the po sitive input of the probe is connected to CAN H and the negative input to CAN L If the probe is connected with re versed polarity you must select CAN L TB 20us 08 CAN B1 CH2 CANH fil Bitrate SOkBit s Bit time Sample point 50 3IT RATE Defined Bit Rat2 PREDEFINED 50 kBit s T Fig 13 21 Setting the SAMPLE POINT during the CAN configuration The soft menu key SAMPLE POINT allows you to specify the exact point within the bit at which the value for the current bit is sampled You can select a value in percent 25 to 90 via universal knob The option BIT RATE de 56 fines how many bits are transmitted per second and al lows you to select default data rates 10 20 33 333 50 83 333 100 125 250 500 kBit s and 1 MBit s via uni versal knob Use the soft menu key USER to specify user defined bit rates You can enter the value via universal knob or
78. e it may be turned on Ordinarily this will be the case af ter 2 hours The oscilloscope is destined for use in clean and dry environments Do not operate in dusty or chemi cally aggressive atmosphere or if there is danger of explo sion he any operating position may be used however sufficient ventilation must be ensured Prolonged opera tion requires the horizontal or inclined position The max operating altitude of the instrument is 2000 m above sea level Specifications are valid after a 30 minute warm up period at 23 degr C tolerance 2 degr C Spe cifications without tolerances are average values Differences within the HMO series 72x 202x Installation and safety instructions unit bandwidth vertical settings at 1VMMOhm input impedance offset range HMO72x 170 MHz 1 mV 10V Div 1 MOhm HMO102x 100 MHz 1 mV 10V Div 1 MOhm HMO152x 150 MHz 1 mV 5 V Div 1 MOhm 50 Ohm 0 2 20 V HMO202x 200 MHz Toga voee EE 1 MOhm 50 Ohm 0 2 20 V For the complete and latest technical data of each oscilloscope of the HMO series please refer to www hameg com 1 6 Warranty and repair Our instruments are subjected to a strict quality control Prior to leaving the factory each instrument is burnt in for 10 hours By intermittent operation during this period al most all defects are detected Following the burn in each instrument is tested for function and quality the specifica tions are checked in all operating modes t
79. e selected Next DC or AC coupling has to be selected with DC coupling all components of the signal will be displayed with AC coupling the DC content will be removed the lower bandwidth is 2 Hz Up to 200 Vrms may be applied directly to the vertical inputs if 1 is selected Higher voltages 18 can be measured with probes up to 40 kVp For general applications the probes supplied with the instrument will be used hey are specified for the 1 M input With the 72 and HMO102x are the HZ154 delivered which offer a 10 1 1 1 switchable attenuation Therefore the attenuation setting must be done manually in the channel menu The HMO152x and HMO202x are delivered with the HZO10 a 10 1 probe with automatic attenuation read out which will be read from the probe and factored in The passive probes must be adjusted to the inputs to which they are connected See the probe manual for the adjustment procedure The PROBE ADJUST output of the HMO oscilloscope is only sui table for 1 1 and 1 10 probes 100 1 or 1000 1 probes require spe cial generators Use the shortest possible ground connection to the PROBE ADJUST output as shown in Fig 4 3 Fig 4 3 Correct connection of the Bus Signal Source probe to the probe adjust output The coupling is selected in the short menu by just pushing the appropriate key the coupling is chosen also the signal may be inverted The menu is valid for the activated chan nel
80. e spe cified value If the pattern includes only 0 or 1 it is possible to trigger on an area greater than or less than the specified value The PATTERN INPUT may be binary or hexadecimal If you choose the binary input the soft menu key BIT and the universal knob allow you to select which individual bits within the data are to be edited Select the option STATE to assign a logic state to each bit High H 1 Low L 0 or X don t care The state X defines any state If you choose the hexadecimal input the soft menu key VALUE and the universal knob allow you to set the value for the respective byte If the input is hexadecimal only the en tire byte can be set to X Use the soft menu key BYTE to toggle between bytes The soft menu IDENTIFIER AND DATA and the soft menu key IDENTIFIER SETUP include the same settings as the 58 soft menu IDENTIFIER The soft menu DATA SETUP allows you to specify the data bit pattern or HEX values for up to 9 bytes Available comparisons for address and data values are EQUAL and NOT EQUAL Press the MENU OFF button twice or three times to close all menus and the oscilloscope will trigger on the set data LIN B1 62 5MSa Version Any Bit rate 19 2kBit s Identifier Equal 0x04 000100 3Byte Equal 0x33 05 13 00110011 00000101 00010011 Fig 13 25 LIN data trigger menu 14 Remote control The HA pene aque wath the meriam nard IR Va have an 0527 and eonmneomn a
81. e triggering FRAME and line triggering LINE Se lecting LINE allows you to define the exact line between 1 and 625 via universal knob or the KEYPAD button in the CURSOR MENU control panel The soft menu item ALL LINES enables the oscilloscope to trigger on the start of the lines in the video signal This key selects all lines i e even when other trigger conditions are met the oscilloscope will trigger on each line If FRAME is selected for frame triggering the lower menu items will allow to trigger on ODD or only EVEN half frames In this case the oscilloscope will trigger on the start of the half frames in the video signal The respective key will se lect the odd even half frames i e even if the other trigger conditions are met the oscilloscope will trigger on each odd even half frame The following modes are available PAL i NTSC 1 SECAM PAL M i SDTV 576 Interlaced i HDI V 720p Progressive 1080p Progressive 10801 Interlaced Display of signals Display of signals The following chapter describes the selection and display of signals from various sources and the available display modes 71 Display settings The HMO72x 202x series features a high quality TFT dis play with VGA 640x480 pixels resolution including LED backlighting Basic display settings can be defined by pressing the DISPLAY 14 key in the GENERAL control pa nel When the soft menu item VIRTUAL SCREE
82. e user from x 0 001 to x 1000 In addition you can select the unit AMPERE in case you are using a current probe or measure current via a shunt If you select A the menu shows the most common factors 1 V A 100mV A 10mV A 1 mV A Again you can also se lect any value between defined by the user Doing so the measurements are always displayed with the correct unit and scale Vertical system 4 5 Level Setting In this menu a level can be set This level define the threshold for detecting a HIGH or a LOW if the analog channel are used as source for the serial bus analysis or lo gic trigger After choosing the softmenu the level can be set by turning the universal knob TB 20ns T OSs 212 5 Fig 4 5 Threshold setting and name allocation 4 6 Name a channel The last entry of the channel menu open a submenu in or der to allocate a name for a channel This name will be shown at the display and at a print out First of all you can switch on or off the display of the name Below that soft menu button you find the soft button LIBRARY After se lecting this button you can choose a name from seve ral different suggestions using the universal knob After pushing NAME you can edit the pre choosen name or en ter a complete new name using up to 8 characters This will be done by selecting the character from the virtual keypad using turning the universal knob and selecting by pushing the knob Pushing the ACCEPT button swit
83. easurements 1 Low signal update rate 1 Assessment of small signal 1 Higher visibility of noise details Average signal update rate Possible aliasing 1 Default application Reasonably smooth operation Good accuracy of measurements Low noise band Automatic Tab 5 1 Vor und Nachteile Softmenu Wiederholrate 22 The last menu INTERPOLATION allow the selection of sinx x linear or Sample Hold as interpolation type for displaying the aquired data points Standard setting is oinx x and the best setting for display of analogue sig nals At the linear interpolation there is a straight line used to connect the points Using sample hold type of in terpolation allow the exact examination of the position of the the aquired data points within the signal 5 4 Interlace Mode In interlace mode converters ADC and storage units of two channels within the same interlaced group are con nected This doubles the sampling rate and the acquisition memory Interlace groups are channels 1 and 2 and chan nels 3 and 4 If an interlace group is not interlace capable the non interlace mode is also applied to the related group A channel is considered active even if it has been deacti vated while still serving as the trigger source If a channel Is activated the respective LED next to the input connec tor is illuminated The following conditions must be met to activate the Inter lace mode 1 No active logic pod None of the serial or parallel bu
84. ed con nect to current HDTVs via HDMI adapter is problematic as most The output signal of the HM0702x 202x series shows a small timeshift in the lower nano seconds time domain HMO series oscilloscopes have an additional BNC con nector Y Output on the rear panel which is used to pass through and output the analog signal of the triggered channel on the one hand or to send alarm pulses when er rors occur during mask tests PASS FAIL on the other hand see chapter 9 This can be very useful for longterm data logging or if you want to trigger mask fails during automated production or testing processes The level of that analog output signal is based on 200 mV DIV 100 mV DIV at 50 of the ADC analog digital con verter The following screenshot will show a 15 kHz sine wave with a 2V amplitude CH1 yellow original signal CH2 blue Y Out signal TB 2015 05 25 Refresh Fig 2 6 Y Out signal Introduction 2 5 Options The HMO series instruments offer some options which al low you to extend the areas of application considerably The following interface modules are available and may be installed by the customer in the rear receptacle HO 40 IEEE 488 GPIB galvanically isolated HO730 combination of Ethernet and USB with integrated web server All HMO series instruments are prepared for mixed sig nal operation and have the appropriate connectors on the front panel Connecting
85. ed The time markers are marked by a vertical line in gray blue he knob X Position allows you to move the sig nal including the set marker After identifying an important signal position and setting it to the center of the screen using the position knob you can set an additional marker This procedure allows you to mark up to 8 interesting po sitions within the signal You can toggle between markers by pressing the arrow keys lt P 37 These keys also allow you to center the markers in the middle of the screen This feature enables you to quickly compare marked signal sec tions in ZOOM mode To delete a marker center it in the middle of the screen and press the SET CLR key once again You can also delete all time markers simultaneously in the marker soft menu TB 500 5 05 d 1MSa FUNCTION Marker Z 100us 2 05 TRIGGER TIME SET TO ZERO CLEAR ALL MARKER Fig 5 6 Marker in zoom mode 5 8 Search Function The search function in the HMO series enables you to search for all slopes pulse widths peaks or additional events in the detection mode that match the manually spe cified search criteria Specific settings are available for each search type Searches can be performed on any ana 24 log channel or mathematical signal The searched time base section can be restricted by defining a level Press the MENU key in the HORIZONTAL section of the control panel to activate the search function in the soft men
86. ed for the measurement The effective value is not applied to a sine signal will be calculated directly so called TrueRMS The measurement will only be applied to the selected channel PEAK TO PEAK This mode measures the difference in voltage between the maximum and the minimum peak value of the signal within the displayed view PEAK This mode measures the maximum voltage value in the displayed view of the screen The measurement will only be applied to the selected channel PEAK This mode measures the minimum voltage value in the dis played view of the screen The measurement will only be applied to the selected channel 33 Measurements FREQUENCY This mode identifies the frequency of the signal from the reci procal value of the first signal period T The measure ment will only be applied to the selected channel PERIOD This mode measures the duration of the signal period T The period identifies the duration between two equal val ues of one periodically repeated signal AMPLITUDE This mode measures the amplitude of a square wave sig nal This mode calculates the difference in voltage be tween the upper and the lower level Vpase and The measurement will only be applied to the selected channel and requires a minimum of one complete period of a trig gered signal UPPER LEVEL This mode measures the mean voltage level of an upper square wave This mode calculates the mean value of the slope withou
87. eferences You can select the desired target reference curve in the top menu item and by pressing LOAD in the file manager To complete loa ding and displaying the reference press LOAD in the file manager menu again To save a reference press the SAVE key determine the source storage location file name and curve and press the soft menu key SAVE with the disk icon The FILE NAME can be changed or adjusted to the corresponding setting REF ist the default label You can use the soft menu key COMMENT to enter a comment which will be displayed in the file manager footer once a file has been selected 10 3 Traces In addition to references you can also store A D converter data A maximum of 24 000 measured samples expanded display memory can be stored on a USB stick Curves can only be stored to externally connected USB sticks not internally The maximum of 24 000 measured value points can only be read out with the maximum sampling rate ACQUIRE menu For the AUTOMATIC setting repeat rate the maximum amount of mea sured value points is limited to 6 000 default setting The soft menu STORAGE allows you to use the USB con nection on the front or back of the instrument as storage location Selecting the respective storage location is possi ble when a USB stick has been recognized If a USB stick Is connected you can also change create or delete direc tories Use the soft menu key SORT ENTRIES to sort seve ral settings file
88. el is marked as High H Low L or X Use the corresponding soft menu key to select the trigger level As before the se lected level will be marked in the soft menu with a blue background Another soft menu item allows the logic combination of the digital channels They can be com bined by logic AND or OR If AND is selected the set conditions of all channels must be met simultaneously for the input signal so that the combination produces a lo gic High H as a result If OR is selected at least one of the defined level conditions must be met The last item in this menu is the option TRIGGER ON Use the soft menu key to select TRUE or FALSE This allows you to preselect whether the trigger will be generated at the beginning TRUE or the end of the logic condition FALSE After selecting the desired set of conditions you can use the FILTER key 36 for additional settings A soft menu will open allowing you to add a time limit to the TRIGGER ON option this menu shows the condition selected in the SOURCE menu Press the top soft menu key to add a time limit This option compares the duration of the output sig nal for the combination of the logic conditions to the set duration ti If the duration is identical or not identical you can set the deviation At If t is within these parameters the trigger condition has been met The menu field below al lows the selection of the comparison criteria These 6 criteria are available rt
89. el markers on the left of the display also visi ble if the menu was closed One marker indicates the posi tion the other the offset refer to Fig 4 4 The offset is in dividually adjustable for each channel Each analog channel may also be shifted in time by 15 This adjustment 15 selected in the same menu and ding to the same method as the DC offset it is used for compensating for the different signal delays of voltage and current probes and different cable lengths 4 3 Bandwidth Limit and Signal Inversion An analog 20MHz low pass can be inserted in the signal path in either the short or extended menu his will elimi nate all higher frequency interference The filter is activa ted in the short menu by pushing the respective soft key the information field will be backlit in blue BW will be dis played in the channel information window Signal inversion is available in the short and the extended menus If it is activated the information field will be backlit in blue and there will be a bar above the channel number 4 4 Probe attenuation selection The HZO10 or optinal HZ355 probes are recognized by the instrument which automatically selects the appropriate factor If any other probe without automatic recognition of the attenuation ratio or just a cable is connected to the in strument the attenuation factor can be set manually in the extended menu his is possible for x 1 x 10 x 100 x 1000 or as defined by th
90. ency The values t1 and t2 re present the times between the trigger and the position of the cursors At represents the time between the cursors RATIO X This mode provides 3 cursors in order to measure ratios in X direction e g a duty cycle between the first and the second and between the first and the third cursors The values will be presented in 4 different formats floating point percent degrees radians RATIO Y This mode provides 3 cursors in order to measure ratios in Y direction e g an overshoot between the first and the se cond and between the first and the third cursors The results will be presented in 2 formats floating point percent COUNT This mode provides 3 cursors in order to count signal cros sings of a level which can be set with the third cursor for a time span as defined by the distance between the first and the second cursors The result will be presented in 4 diffe rent versions number of rising and falling level crossings number of positive and negative pulses PEAK LEVELS This mode provides 2 cursors in order to measure the mini mum and maximum values of a signal within the time span as defined by the two cursors The values Vp and Vp re present the minimum and maximum values of the voltage The peak to peak value Vpp is equal to the difference bet ween the minimum and maximum values RMS MEAN Standard deviation This mode provides 2 cursors in order to calculate the rms the me
91. ens a display menu which offers the basic modes of capture 5 3 1 Refresh In this mode the signals are captured and displayed 5 3 2 Roll This acquisition mode is intended specifically for very slow signals with the untriggered signal rolling across the screen from right to left requires signals slower than 200 kHz The HMO uses a ring buffer to store the signal values in roll mode Simply put the instrument writes the first division to the first storage space the second division to the second storage space etc Once the storage is full the instrument overwrites the first storage space with the data of the most recent measurement value This creates a ring or cycle run similar to a ticker The ZOOM feature is not available in the roll mode also refer to Chap 5 5 Z00M Function 5 3 3 ENVELOPE In this mode the display includes the normal capture of each signal and the maximum as well as the minimum va lues of each capture Over time this creates an envelope surrounding the signal 5 3 4 AVERAGE In this mode you can use the universal knob in the Cursor Menu section of the control panel to set the number of sig nal periods for averaging available in powers of 2 from 2 to 1024 requires repetitive signals 5 3 5 FILTER In this mode you can activate a low pass filter with ad justable cut off frequency to suppress unwanted high fre quency interferences The cut off frequency can be set based on the sa
92. enshots this will assign the function screenshot to the key FILE PRINT with the settings chosen This enables you to store a bit map file on your USB stick by just pressing FILE PRINT 17 at any time and in any menu 17 Vertical system 4 Vertical system For the vertical settings there are the knobs for the vertical position and the sensitivity an always visible short menu and an extended menu VERTICAL POSITION VOLTS DIV COARSE FINE By pushing the respective key the channel will be selected for which these controls will be activated this will be indi cated by the key lighting up in the color of the channel Ad ditionally the channel number on the screen will be framed and displayed lighter than the channels not activated The appropriate short menu is always visible the extended menu will be shown upon pushing the key MENU 21 Fig 4 1 Front panel area with vertical system controls 500 5 T Os Refresh Fig 4 2 Short menu for the vertical settings 4 1 Coupling The first item to be selected is the input impedance 1M or 50 only at the HMO152x and HMO202x the HMO 72x and 102x does not offer 50 Q inputs Do not connect the 50 inputs to effective voltage higher than 5 volts The 500 input impedance should only be selected if the signal source is 50 such as a generator with a 50 output where the termination within the scope 15 to be used In all other cases 1 is to b
93. eously The options are activated by a software licence key This key will either be installed at the time of manufacturing or it will be loaded to the instrument via USB stick when the user installs an update as described in chapter 2 10 The analysis of parallel and serial data consists of the fol lowing three basic steps Protocol configuration BUS type protocol specific settings i Decoding Display of decoded data Zoom BUS table Trigger Start Stop serial samples The serial bus analysis is performed with 1 8 of the sampling rate 13 2 Serial Bus Configuration Prior to the BUS configuration it is necessary to set the correct logic level for the digital channels see chapter 11 2 or the ana log channels see chapter 4 5 The default setting for both is 500 mV Make sure that a complete message of a serial protocol is al ways displayed on the screen to ensure decoding works pro perly The zoom function allows you to view details for any spe cific message It is necessary to define a BUS before you can determine the settings for the serial trigger and decoding functions A maximum of two buses B1 and B2 may be defined Press the BUS REF button in the VERTICAL section of the control panel This will open a short menu where you can press the bottom soft menu key BU BUS Use the MENU button in the VERTICAL section of the control panel and the top soft menu key to define the respective BUS B1 or B
94. er distribution installations power switches firmly installed sockets firmly installed engines etc Measurement CAT 11 Measurements on circuits electro nically directly connected to the mains e g household ap pliances power tools etc Measurement category O previously Measurement CAT Electronic devices and fused circuits in devices 1 9 Mains voltage The instrument has a wide range power supply from 100 to 240V 410 50 or 60 Hz There is hence no line vol tage selector The line fuse is accessible on the rear panel and part of the line input connector Prior to exchanging a fuse the line cord must be pulled out Exchange is only al lowed if the fuse holder is undamaged It can be taken out using a screwdriver put into the slot The fuse can be pu shed out of its holder and must be exchanged with the identical type type informations below The holder with the new fuse can then be pushed back in place against the spring It is prohibited to repair blown fuses or to bridge the fuse Any damages incurred by such measures will void the warranty Type of fuse IEC 60127 250V Size 5 x 20 mm 1 10 Batteries and rechargeable batteries cells If the information regarding batteries and rechargeable batteries cells is not observed either at all or to the extent necessary pro duct users may be exposed to the risk of explosions fire and or se rious personal injury and in some cases death Batteries and re
95. ernal memory to an external storage medium USB stick or vice versa Source SOURCE FILE and tar get DEST PATH must be selected for copying Use the 41 Documentation storing and recalling 200us T Os 25MSa SOURCE FILE Internal DEST Front USB IMPORT EXPORT 2 Fig 10 4 Import Export menu for instrument settings universal knob to select a storage location which will open a file manager Pressing the IMPORT EXPORT key by de fault will copy the selected settings file If two USB sticks are connected front and back this will also work between the two USB sticks To import or export instrument settings you must have a USB stick connected otherwise the menu cannot be selected The menu item DEFAULT SETT also allows you to load the factory default settings 10 2 References References are data sets which consist of settings infor mation and A D converter data These may be stored and reloaded internally or externally Data can be reloaded into one of the 4 reference memories to REA which can also be displayed The main feature of references is the fact that all information e g vertical gain time base set ting A D converter data is included when saving or reloa ding enabling a comparison between the original signal and its corresponding values The soft menu REFERENCES only allows you to import or export references IMPORT EXPORT The transfer of re ferences to othe
96. fine a tolerance zone Selecting ti ti t2 Not t1 tij t2 allows you to define both refe rence times with the menu items TIME 1 and TIME 2 Se lecting ti lt t or ti gt t allows you to define only one li mit Selecting the corresponding soft menu item allows you to set any of these settings for positively or negatively polarized pulses For the associated positive pulse you de fine the width from rising to falling slopes and accordingly for the associated negative pulse from falling to rising slo pes As Is consistent with the principle triggering always occurs on the second slope of the pulse 6 5 Logic trigger You may test all the settings without a logic probe connected however the functions will only be effective with a H03508 probe connected Selecting the logic trigger in the soft menu after pressing the TYPE key 31 will switch the trigger source to the di gital inputs Pressing the SOURCE key 32 after selecting this trigger type displays a soft menu for additional set Trigger System TB 200ps T Os 25 n Trigger On 500 mv f Fig 6 5 Logic trigger menu tings and a window to list these settings see Fig 6 5 The top soft menu key enables you to select a logic chan nel for which you wish to determine the trigger condi tion Use the universal knob for this purpose In the ge neral menu the selected digital input is marked with a blue background In the field the trigger lev
97. fined limits This limits are set by a so called mask If the signal exceeds the mask there is an er ror These errors will be displayed together with success ful sweeps and the total of all sweeps at the bottom of the screen It is also possible to perform certain actions if er rors are discovered Press the QUICKVIEW key 10 in the ANALYZE section of the control panel and press the soft menu key PASS FAIL to activate the mode which opens a menu to set and use the mask test Prior to starting the test by pressing the top soft menu key TEST ON OFF it is necessary to generate or load a mask and to select an action generate a new mask press the soft menu key NEW MASK Masks are displayed as light gray curves waveforms on the screen If 39 Analysis a mask was copied or loaded you can use menu items to change the expansion of the signal form and consequently the limits for the test In the menu that opens you can use the key COPY CHAN NEL to copy the current signal into a mask memory The mask displays in white and appears as an overlay of the output signal The menu keys Y POSITION and STRECH Y enable you to shift this curve vertically or to enlarge it The two menu items WIDTH Y and WIDTH X allow you to set the tolerance for the mask The universal knob or the KEYPAD button are used to enter values with a reso lution of 1 100 division A mask includes a minimum and a maximum value for each captured data value The min
98. for traces without menu with menu Color depth Intensity steps per trace Vertical System Channels DSO mode MSO mode Auxiliary input Function Impedance Coupling Max input voltage XYZ mode Invert Y bandwidth 3 dB Lower AC bandwidth Bandwidth limiter switchable Rise time calculated DC gain accuracy Input sensitivity CH 1 CH Variable 16 5 6 5 VGA Color TFT 640 x 480 Pixel LED 400cd m 400 x 600 Pixel 8 x 12 Div 400 x 500 Pixel 8 x 10 Div 256 colors Omri CH1 CH2 CH2 CH1 to CH1 CH2 LCH 7 Logic Channels CH2 CH1 CH2 LCH 0 io 7 ChA Ch with option HO3508 Frontpanel ACH Rearpanel 2CH External Trigger 1MO 14pF 2 DC AC 100V DC peak AC all analog channels alternatively CH 1 CH 2 CH1 CH4 200 MHz bmV to 10 V Div 100 MHz 1mV 2 mV Div 2Hz 20 MHz lt 0 75ns 2 13 calibrated steps 1 mV Div to 10 V Div 1 2 5 sequence between calibrated steps Cla ek Impedance Coupling max input voltage Measuring circuits Position range Offset control mV 2mV 100 2 0 mA 5V 10V Logic channels Thresholds Impedance Coupling Max input voltage 60 1MQ Il 14 pF 2 pF 50 Q switchable DC AC GND 200V DC peak AC 50 lt 5 Vims Measuring Category 0 10 Divs 0 2V 10div x sensitivity 1V 10div x sensitivity 2 5V
99. g the self alignment although it has been carried out as described please send the exported log file see Self Alignment menu to support hameg com You can save the log file to a USB stick To start the self alignment for the logic probe it is neces sary that the logic probe type HO3508 is connected to the HMO It is imperative that the bit connectors are not con nected To start the process select the menu item LO GIC PROBE SELF ALIGNMENT The process is similar to the basic instrument alignment but it only takes a few seconds TB 100us T 4pus Before starting the self alignment of the logic probe you have to plug the connector into the front panel Plug in all bit lines Ensure that it is not plugged off while alignment EXPORT p is running None of the LA ZA 90002106 micro crabbers must be connected to signal Press start button to run self alignment Fig 2 15 Logic probe self alignment 13 A quick introduction The following chapter is intended to introduce you to the most important functions and settings of your new oscillo scope in order to allow you to use the instrument immedia tely The internal calibrator signal output is used as the sig nal source so you will not need any additional instruments for the first steps Fold out the feets completly so the display will be inclined slightly upwards See chapter 1 2 for positioning Plug the power cord into the rear panel connector The instru
100. gnal update rate Table 5 1 displays advantages and dis advantages of each setting Finally it needs to be mentioned that this menu replaces the adjustable memory depth a standard for other manu facturers An adjustable memory depth is intended to al low users to understand the relation between memory depth time base and sampling rate and to evaluate ad vantages and disadvantages With this option the oscillo scope always captures signals with the maximum samp ling rate This allows users in STOP mode to zoom in retro spectively even at the maximum repeat rate is also pos sible to zoom out at the maximum repeat rate if the STOP mode was run at fast time bases If a high repeat rate can only be attained by means of low memory depth as is the case with other manufacturers it is nearly impossible to zoom in retrospectively in STOP mode Setting Advantages Disadvantages Application 1 Search for rare events High aliasing risk Low accuracy of details Low accuracy of measurements due to reduced amount of data Many captures in one image Rare events can be detected more quickly in connection with per sistence Quick response to Operation or change in signal Low noise band Max Repeat Rate 1 Displaying modulated signals Maximum Sampling Rate 1 Maximum accuracy of details Slow response to operation or 1 For signals with high frequency 1 Lowest aliasing risk change in signal parts 1 High accuracy of m
101. h channel will be connected to the data line This set ting is selected after choosing the bus type LIN in the BUS menu and pressing the soft menu key CONFIGURATION In the menu that opens you can press the top soft menu Version Bit rate 19 2kBit s BIT RATE Defined Bit PREDEFINED 19 2kBit s Di Fig 13 24 Menu for the definition of a LIN bus key DATA to select the desired channel via universal knob The soft menu key POLARIT Y allows you to toggle bet ween High and Low the active function will be highligh ted in blue An analog or a digital channel can be connec ted to LIN High or LIN Low You can select any version for the LIN standard version 1x version 2x J2602 or any via If LIN standard VERSION J2602 is selected you may only choose from the predefined standard data rates via bottom menu item and universal knob 57 Serial bus analysis soft menu key VERSION and universal knob The option BIT RATE allows you to specify the number of transmitted bits per second You can use the universal knob to choose from predefined standard data rates 1 2 2 4 4 8 9 6 10 417 and 19 2 KBit s and user defined data rates USER The highest possible user defined data rate is AMBit s You can enter the user defined value via universal knob or nu meric input KEYPAD button 13 8 2 LIN BUS Triggerung After the BUS configuration it will be possible to trigger on various events Press the button in t
102. h is displayed in the 2 settings window and is highlighted by the menu key in blue The SLAVE ADDRESS is the address used on the BUS to distinguish which slave the master communicates with 500MSa BYTE OFFSET 0 e NUMBER OF BYTES PATTERN INPUT 5 ion C Trigger On Write Slave Address 0 7 Byte Offset Data 11000111 11111111 Oxc Pu 00110101 0x35 SCL CH1 504mV VALUE SDA CH2 500 mY POD1 500 51 Serial bus analysis Use the universal knob to select the address for the obser ving bus participant to be triggered The soft menu DATA enables you to enter specific data in addition to the address With this menu you can trigger on clearly defined data bytes color cyan within the transmis sion allowing you to filter out irrelevant transmissions You can trigger on up to 24 bit 3 byte of data An offset of O to 4095 to the address is allowed Select BYTE OFF SET which defines the distance between the bytes rele vant for the trigger condition and the address In most ca ses the byte offset 15 zero if the trigger is to occur on the maximum first 24 bits after the address The soft menu key NUMBER OF BYTES allows you to define how many bytes are to be analyzed for the trigger condition The input may be binary or hexadecimal PATTERN INPUT If binary in put is selected the individual bits can be assigned to any condition via soft menu key SELECT BIT and the universal knob The soft menu key
103. he TRIGGER section of the control panel and choose the soft menu key SERIAL BUSES Then press the SOURCE button in the TRIGGER section and choose LIN This will only be availa ble if it was configured earlier Press the FILTER button in the TRIGGER section of the control panel to list all available CAN trigger conditions The function START OF FRAME triggers on the stop bit of the synchronizing field The function WAKE UP triggers af ter a wake up frame The soft menu ERROR identifies vari errors in a frame This menu allows you to choose one or several error mes sage types as trigger condition i CRC Cyclic Redundancy Check LIN BUS applies a complex checksum calculation Cyclic Redundancy Check The transmitter calculates the CRC and transmits the result in a CRC sequence The receiver calculates the CRC in the same manner A CRC error occurs if the calculated result deviates from the received CRC sequence PARITY Triggering occurs on a parity error Parity bits are bit 6 and bit 7 of the identifier The correct transfer of the identifier is verified i SYNCHRONISATION Triggering occurs if the synchronizing field indicates an error With the soft menu key IDENTIFIER you can set the trig ger to a specific identifier or a specific identifier range The soft menu key COMPARE defines the comparison func tion If the pattern includes at least one X don t care it is possible to trigger on a value equal or not equal to th
104. he current settings Press the MENU OFF but ton twice to close all menus If the option H0011 is installed it it only possible to select ana log channels as source If the option H0010 is installed both analog and digital channels are available as source Certain portions of the 2C messages will be displayed in color to distinguish between the different elements If the data lines are selected with the table display the respec tive sections will also be displayed in color These are described as follows 1 Read address Yellow 1 Write address Magenta 1 Data Cyan Start White 1 Stop White No acknowledge Red Acknowledge Green 25115 100MSa Refresh POD1 500mVv 50MSa After the BUS configuration it will be possible to trigger on various events Press the button in the TRIGGER sec tion of the control panel and choose the soft menu key SE RIAL BUSES Then press the SOURCE button in the TRIG GER section and choose 2C Bus This will only be available If it was configured earlier Press the FILTER button in the TRIGGER section of the control panel to list all available 12C trigger conditions The decoding of the address is performed as a 7 bit value The 8th bit for the write read distinction will be decoded in color not in the HEX value of the address You can trigger on the START signal the start signal is the falling slope on SDA when SCL is high and the STOP sig nal the start signal i
105. he signal and its details we now proceed to measuring it using the cursor functions Press again LI shortly AUTOSET 15 and then the CURSOR MEASURE key rect 8 Now the cursor menu will open up and you can se lect the kind of cursor Press the top soft key in order to VAmp 89568mV CntI 1 open the appropriate menu Use the knob in the CURSOR RMS 686 10 mV T 996 60 us 49820us tU 498 40 ps Vpp 920 00 mV f 1 00 kHz Dty 49 99 96 Dty 50 0196 MENU area for the selection by turning it CCW until the V marker is underlined press the universal button or wait for some seconds in order to accept the selection Now two cursors will be displayed along with the signal and the The following list features the most important parameters measurement results in the bottom area of the grid Select of a signal the active cursor by pushing the universal knob and posi positive and negative peak voltages tion it by turning the knob rise and fall times mean voltage The cursor measurement results will be displayed at the bottom of the grid In this case the V marker has selec 10 additional parameters are shown below the grid ted the voltages at the two cursor positions their diffe 1 RMS peak peak voltage rence and the time difference between the positions will frequency period be shown The cursors will be switched off by pressing the 1 amplitude number of rising edges CURSOR MEASURE key and the asso
106. he test gear 15 calibrated to national standards The warranty standards applicable are those of the country in which the instrument was sold Reclamations should be directed to the dealer Only valid in EU countries In order to speed claims customers in EU countries may also contact HAMEG directly Also after the warranty ex pired the HAMEG service will be at your disposal for any repairs Return material authorization Prior to returning an instrument to HAMEG ask for a number either by internet http www w hameg com or fax 49 0 6182 800 501 If you do not have an ori ginal shipping carton you may obtain one by calling the HAMEG service dept 49 0 6182 800 500 or by sen ding an email to service hameg com HAMEG Instruments GmbH Service Departement Industriestr 6 D 63533 Mainhausen Telefon 49 0 6182 800 500 Telefax 49 0 6182 800 501 E Mail service hameg com The product may only be opened by authorized and qua lified personnel Before any work is performed on the product or before the product is opened it must be dis connected from the AC supply network Otherwise per sonnel will be exposed to the risk of an electric shock Any adjustments replacements of parts maintenance or repair may be carried out only by authorized HAMEG tech nical personnel Only original parts may be used for repla cing parts relevant to safety e g power switches power transformers fuses A safety
107. he use of the HIGH RE SOLUTION mode the detection mode is marked with in the upper right of the display The following requirements must be met to activate the HIGH RESOLUTION mode Sampling rate is smaller than the maximum sampling rate no Interlace mode 1 Peak detection 15 deactivated No active logic pod POD None of the serial or parallel buses are active By default all functions listed above are deactivated Horizontal System Time Base 5 3 8 Waveform Rate This soft menu Item provides the following functions 5 3 8 1 MAX WFM RATE This mode allows you to select the memory depth and sampling rate to obtain the maximum trigger repeat rate Refresh TB 500ns T 260ns 100MSa Fig 5 2 AM modulated signal with maximum repeat rate When using the MAX WAVEFORM RATE mode the oscil loscope is set to display the maximum amount of captures per second in the signal window Each column in the sig nal window displays a captured date When peak detec tion is activated each column displays a pair of min max values The HMO oscilloscope displays a signal window of 600x400 pixels Yt without zoom This translates into 600 data points per detection When peak detection 15 activa ted 600 pairs of min max values or 1 200 data values are displayed Ihe memory depth corresponds to at least the displayed time window time base x signal window grid section in horizontal direction multiplied by the curren
108. i mum and maximum value for a source curve with only one value per data are identical width indicates the dis tance between the peripheral points and the original point The greater the selected value is the greater are the poten tial curve deviations in the amplitude The tolerance mask is displayed in white in the background The generated and edited mask can be used immediately for the test how ever it is only saved temporarily in the instrument storage The soft menu key SAVE can be used to store the mask permanently to a USB stick or to the internal memory Press the key MENU OFF to return to the start menu Press the soft menu key LOAD MASK to open a file browser which allows you to load previously stored masks for the test file extension HMK A loaded mask can be changed in the menu NEW MASK Changes will be ap plied to the file when the mask is edited and saved Pressing the soft menu key ACTIONS in the PASS FAIL main menu opens a menu with the available actions The following four actions can be performed 1 Audio signal if the tolerance limits have been exceeded Stop for first time failure number is adjustable 1 Pulse for first time failure emits a pulse at the Y output in case of failure only for instruments with bus signal source Screen dump for first time failure An action is performed if the respective condition is met e g a specific number of mask failures Each action is as signed a unique
109. iate search type you can choose the desired SOURCE choose from any of the activated analog channels including mathematical chan nels Use the menu item SETUP to open a submenu where you can choose the settings for the selected search criterium e g greater than a specific pulse width Some of the adjustable parameters may be dependent on the time base for a time base of 100 us Div the smallest time is Zus for 1 us Div the corresponding time value is 20ns If events match the search criterium they will be highligh ted he soft menu VIEW EVENT TABLE allows you to dis play the search results in a table format Use the arrow keys or the universal knob to navigate the events in STOP mode he Select option allows you to center the selected event When the zoom function is activated the selected event will automatically be centered in the zoom window TOS 250kSa FUNCTION Search 498 20000015 498 24000015 498 200000us 498 240000us 498 200000 5 me 20 925730ms Et 18 932810ms 17 936370ms 16 939890ms Search results 1 5 42 Fig 5 7 Search mode with event list Trigger System b Trigger System The trigger system of the is easy to handle by just LEVEL observing the concept of inst rument operation There are 4 keys destined for frequently used functions TYPE selection of trigger type EDGE EDGE PULSE LOGIC and VIDEO 1 SLOPE
110. ing the same procedure The Greyscale mode converts a co lor display to a greyscale display which can be printed on a Black and White Postscript printer The Color Mode will print the display in colour as it is shown on the screen black back ground In the Inverted Mode the color display will be ted in colour with a white background on a color Postscript printer in order to save toner and ink When using the INVERTED mode you should set the intensity of the signals to about 70 to allow a high contrast print If you are using inverted mode you should set the inten sity of the curves to about 70 in order to get a high con trast print out Version Date Build EXECUTE Current New Hardware Software Current Installed languages English 2012 01 12 German 2012 01 05 Loading file finished HMO_B24 HFU The checksum of the firmware update is correct Fig 2 10 Updating menu and information window The last menu DEVICE INFORMATION open a window with all informations about hard and softwarestatus of your HMO You should have these information on hand whenever you have questions about your HMO At the second page of the basic menu you find the menu for firmware and help update which is explained in de tail in the next chapter The last menu item is the PROBE ADJUST Pressing the soft key leads you to the menu where you can set whether the probe adjust output gene rates a rectangular signal with 1 kHz or 1
111. itor 16 36 37 Fourier analysis 38 FRAME ERROR 55 frequency 2 11 15 19 20 22 20 31 22 24 35 90 99 39 47 frequency analysis 36 38 G general settings grid 15 16 19 21 23 242 31 Appendix H half frame 29 Hamming 39 Hanning 39 High Pass Filter 37 HMsScreenshot 44 hysteresis 24 2 BUS 49 50 52 IEEE 488 8 9 inductance 45 Instrument settings 17 41 intensity 2 10 30 44 interlace mode 23 L language 7 10 12 44 licence key 12 48 LIN bus 48 57 58 Lissajous figure 31 logic channel 27 46 47 48 50 logic level 47 48 50 53 54 56 57 logic pod 23 logic probe 7 9 13 26 27 46 48 logic trigger 19 27 46 50 Low Pass Filter 37 M marker function 20 24 mask test 39 40 mathematical functions 16 36 37 mathematical graph 16 17 mean value 33 34 35 39 mean voltage 34 memory depth 14 21 22 23 Minimum voltage 39 mixed signal operation 9 N nibble 54 NISC 25 29 offset 12 18 19 29 52 54 offset voltage 19 PAL 28 29 parity b4 55 57 90 99 Parity bits 54 58 PARITY ERROR 55 Pass Fail test 39 Peak Detect 20 PEAK LEVELS 32 peak value 32 33 peak voltage 15 39 period 5 15 21 24 90 02 99 94 905 29255 persistence 29 30 63 Appendix polarity 28 45 56 PROBE ADJUST 11 pulse trigger 26 28 pulse width 15 24 25 26 27 28 34 39 Q Quick mathematics
112. l by using the soft menu NAME A library provides a list of predefined names The name can be activated deactivated or edited 6 6 Video trigger The video trigger allows you to trigger on PAL 5 SECAM standard video signals or on signals Select the video trigger mode by pressing the key TYPE 31 in the trigger section of the control panel Select the source by pressing the SOURCE 32 key The FILTER 36 menu allows TB 500us T Os 1MSa PAL NTSC SECAM PAL M SDTV 576i HDTV 720p HDTV 1080 HDTV 1080i ALL LINES Fig 6 7 Video trigger menu you to define additional settings The oscilloscope triggers if the CVBS signal Color Video Baseband Signal selected in the SOURCE menu features the attributes set in the FIL TER menu select the desired standard by pressing the respective soft menu key STANDARD Use the universal knob in the CURSOR MENU control panel or press the soft menu key again to select the desired standard The second setting will apply to the polarity of the sync pulse may be positive or negative With positive video modulation the highest brightness is represented in the image by the maximum signal voltage the synchronization pulses are negative with negative modulation they are positive The slopes of the synchronization pulses are used for triggering which explains why a faulty polarity setting causes irregular trig gering by image information Next you can select between fram
113. l resistor or connect an external terminating resistor par allel to the high impedance input Pressing the respective channel key allows you to activate a different channel as source for the FFT You can deacti vate the FFT function by pressing the soft menu key FFT OFF or pressing the FFT key on the control panel again 9 3 Quick View The QUICK VIEW function allows a quick overview of the typical signal size Pressing the OUICKVIEW key 10 in the ANALYZE section of the control panel activates several ba sic automatic measurements Measurement results are displayed at the bottom of the screen and with a cursor on the signal The following five measurement values are dis played directly in the signal Maximum voltage 1 Rise time 1 Mean voltage 1 Fall time 1 Minimum voltage The following ten measurement values are displayed at the bottom of the screen i RMS value 1 Period 1 Peak to peak voltage 1 Frequency Amplitude Number of positive slopes 1 Pos pulse width Neg pulse width 1 Pos duty ratio Neg duty ratio Pressing the AUTO MEASURE key allows you to change the six measurement parameters on the bottom right You may undo these changes by choosing RESET or restore the default setting Only one channel can be active in the Quickview mode All measurements will be performed on the active channel 9 4 PASS FAIL Test Based on Masks The Pass Fail test allows you to evaluate if a signal is lo cated within de
114. length signal lines must be less than 3 meters and not be used outside buildings signal lines must screened coaxial cable RG58 U A proper ground con nection is required In combination with signal generators double screened cables RG223 U RG214 U must be used 3 Influence on measuring instruments Under the presence of strong high frequency electric or magnetic fields even with careful setup of the measuring equipment influence of such signals is unavoidable This will not cause damage or put the instrument out of operation Small deviations of the measuring value reading exceeding the instruments speci fications may result from such conditions in individual cases 4 RF immunity of oscilloscopes 4 1 Electromagnetic RF field The influence of electric and magnetic RF fields may become visible e g RF superimposed if the field intensity is high In most cases the coupling into the oscilloscope takes place via the device under test mains line supply test leads control cables and or radiation The device under test as well as the oscilloscope may be effected by such fields Although the interior of the oscilloscope is screened by the cabinet direct ra diation can occur via the CRT gap As the bandwidth of each amplifier stage is higher than the total 3dB bandwidth of the oscilloscope the influence of RF fields of even higher frequencies may be noticeable 4 2 Electrical fast transients electrostatic discharge Elect
115. lue per time stamp activate the WAVEFORM RATE Automa tic in the menu Example Curve with all visible channels s CH1 V CH2 V CH3 V CHA V 4 99500E 07 2 601E 03 2 566E 02 1 003E 04 1 139E 04 4 99000E 07 6 012E 04 5 434E 02 1 003E 04 8 611E 05 4 98500E 07 6 012E 04 5 434E 02 9 973E 05 8 611E 05 4 98000E 07 1 399E 03 5 434E 02 2 997E 04 8 611E 05 1 TXT I XT files are ASCII files that only contain amplitude values no time values Amplitude values are separated by a comma The value pairs are listed as single values without identification Documentation storing and recalling Example 1 000E 02 1 000E 02 1 000E 02 1 000E 02 3 000E 02 i HRT HAMEG Reference Time Files with this extension are reference curves of the time domain If the displayed curve is saved in this format it can be used in the reference menu The format also allows you to generate files that can be reloaded into the oscilloscope via reference menu After you made all entries press the menu key STORE to save the selected curve s according to the settings Please note that the repeat rate has to be set to the maximum sampling rate via key when reading out the entire ac quisition memory The entire acquisition memory can only be read out in STOP mode 10 4 Screenshots The most important format to store information for docu mentation purposes is the screenshot screenshot 15 an image file which sh
116. m Beare amia To make amy communication possible the chosen interface and ite correcponding settings must be the game in the PC az in the agrillazcope Only exception iz the virtual COM port which iz described under the USB section 14 BR ZI The 2 7 ine boe m rre 8 DAUB ammneo e the rincon inier Enn Gan traneter aat dais anc dumpa from an aciem ew to the ose ge IB vernm Tha dirt prs link Fetwenen oec epi ar Bee pot of the PC be done an pole abie with shaking 171 worn Tha Teer bangin met ka rege Tho man pn nang cit ha ru m as Ted cres Tx Gata kata from k tien rievimi Fx Data from cene tr lke 1G teachy seeding ATS readily Kx mamring ground reiemnoa dun tn koa and power Gu crowned do 9 4h upph woga far extern devices 400 mp SES The at Tx Px ATS und GTS E 12 Velr The standard HRS EZ H h Z 8 bite no bate 2 bra TE Hartwam qxroinoeok name order to set thee pareant ar the HG pages Goen tha arion SETUP at the front panel in the ama GENERAL and fat the sort key INTEHEALE at the opened mit manu Miaka aure the PES ania ie im hosan blue baoklgh and then ht the button PARAMETER Thr ope a MENU WEN AGM Dart anl so
117. ment will be turned on by switching on the main power switch on the back and pushing the key On Off 1 on the front pa nel After a few seconds the display appears and the os cilloscope is ready for measurements Now press the key AUTOSET 15 for at least 3 seconds PERSIST SCROLL CURSOR MEASURE DISPLAY Passive probes be compensated prior to first use Please refer to the probe manual for the proper compensation procedure Place the probe in the appropriate position on the ADJ output such that the tip will be accepted by the hole of the right output while the ground connection is made to the left output as shown in Fig 4 3 in chapter 4 Take one of the probes delivered with the instrument de tach the protective cap from the top Apply the compen sation box to the BNC connector of channel 1 and turn the black knob CW until it latches positively Active settings are marked in blue On the right hand side of the screen you will see a short menu of channel 1 the soft keys allow you to select fre quently used settings Press the top soft key once to change the input coupling to DC Now press the key AUTOSET 5 once shortly after few seconds the oscilloscope will have automatically selected 14 TB 100us T Os CHL 15mVv Refresh CHESOMEN ____ appropriate vertical horizontal time base and trigger set tings You will see now a square
118. mpling frequency The minimum setting is 1 100 of the sampling frequency and the maximum value is 1 4 of the sampling rate You can select this setting with the universal knob The second menu page is accessed by pushing the soft key next to the menu 1127 here extended func tions are available 5 3 6 Peak Detect This mode is used for very large time base settings to de tect even short signal changes You can also deactivate this function within the menu or you can select the auto matic switching mode The following conditions must be met to activate the PEAK DETECT mode i Function HIGH RESOLUTION is deactivated None of the serial or parallel buses are active During peak detection the oscilloscope distinguishes bet ween two types Acquisition peak detection and memory peak detection Each A D converter converts at the full sampling rate no Interlace mode even if results have not been written to the acquisition memory at full sampling rate for slow time bases for instance If peak detection is activated unused converter values will be evaluated to detect minimum and maximum amplitudes During this process the identified minimum and maximum values including sampling inter val are written to the acquisition memory As a result the acquisition memory stores data pairs representing the sig nal sequence according to the sampling interval The smal lest detectable pulse is the period of the maximum samp ling
119. mplitude of the measurement signal A slope will be counted if the signal runs through the mean value A pulse that passes the mean value only once will not be calcu lated The measurement will only be applied to the se lected channel COUNT This mode counts negative pulses in the displayed view of the screen A negative pulse consists of a falling slope fol lowed by a rising slope The mean value is calculated from the amplitude of the measurement signal A slope will be counted if the signal runs through the mean value A pulse that passes the mean value only once will not be calcu lated The measurement will only be applied to the se lected channel COUNT This mode counts signal changes slopes from Low Level to High Level in the displayed view of the screen The mean value is calculated from the amplitude of the measurement signal A slope will be counted if the signal runs through the mean value The measurement will only be applied to the selected channel COUNT This mode counts signal changes slopes from High Level to Low Level in the displayed view of the screen The mean value is calculated from the amplitude of the measurement signal A slope will be counted if the signal runs through the mean value The measurement will only be applied to the selected channel TRIGGER FREOUENCY This mode measures the frequency of the trigger signal bases on the period duration The source for the measure ment is the curren
120. mum Mean 2 2 E Fig 8 3 Statistic for Automeasurements 35 Analysis The HMO series oscilloscopes features an analysis func tion for the collected data records which are displayed on the screen Simple mathematical functions can be perfor med with the function Quick mathematics while more complex functions and the linking of functions can be ac complished with the formula editor The MATH menu in cludes mathematical functions for the recorded signal ty pes The mathematical functions track the changes of the included signals and only apply to the visible area You can also activate the frequency analysis FFT by pressing the respective key The function QUICKVIEW provides a quick overview for the signal properties A masked based PASS FAIL test allows you to monitor signals automatically The MATH menu includes mathematical functions for the recorded signal types The mathematical functions track the changes of the included signals and only apply to the visible area of the screen If a signal is cut off at the edge of the screen may indicate that the corresponding math ematical curve is also truncated The DIV encoder can be used to scale an activated mathematical curve TB 200ns T Os Refresh AU The MATH menu is divided into Quick Mathematics and formula sets Quick Mathematics is designed for simple and quick calculations The formula sets however allow more complicated links Pressing the MATH key
121. n However this is only possible If acquisition has been stopped This option is also availa ble in the short menu BUS via soft menu key Trk Track If you activate the soft menu key FRAME TIME DIFFE RENCE highlighted in blue the time difference to the pre vious frame data packet will be displayed in the BUS ta ble This column will be labeled in the table as Time dt If this function is deactivated the absolute time in relation to the trigger point will be displayed in the column Start 49 Serial bus analysis time The soft menu key Tab in the BUS short menu al lows you to activate or deactivate the BUS table without opening a menu You can use the soft menu item POSITION to move the ta ble to the top or bottom of the screen In addition it is pos sible to display the BUS table in full screen Select the po sition via universal knob in the BUS menu or directly via soft menu key Pos in the BUS short menu A BUS table can only be stored if the STOP mode is active 13 3 Parallel BUS The HMO series is able to analyze up to bit lines The soft menu key BUS WIDTH and the universal knob allow you to select the number of bit lines You can use the soft menu keys PREV BIT and NEXT BIT or the universal knob to move the position of the SOURCE selection bar for indi vidual BUS bits The selected bit is highlighted in blue To trigger on parallel buses it is recommended to use the lo gic trigger see chapter 6 5
122. n use the universal knob or the KEYPAD button to select the threshold The XY display will be deactivated by pressing the XY key in the VERTICAL section of the control panel if the XY set tings are activated If you wish to show no menu or a dif ferent menu press the XY key twice to deactivate the XY display 31 Display of signals 0 Measurements There are two different kinds of measurements on signals cur sor measurements and automatic measurements All results are stored in a buffer memory which is larger than the display memory The QuickView mode delivers all available parameters of a signal curve The integrated hardware counter shows the count results on the selected channel 8 1 Cursor measurements The most frequently used measurement method with an oscil loscope is the cursor measurement his concept is oriented towards the expected results and thus provides not only one or two but in some modes three cursors Cursor measurements are controlled by the keys CURSOR MEASURE and the univer sal knob The kind of measurement can be defined in the menu which will open upon pushing the key CURSOR MEASURE 200uUs T Os 2 5MSa Voltage Time Ratio X Ratio Y Count Peak Values RMS Mean Duty Ratio Rise Time 90 Rise Time 80 V Marker SET TO TRACE IL SET TO SCREEN Ext t GLUE TO TRACE Time CH1 TM A 4 IM V Fig 8 1 Cursor measurements selection menu
123. nal Operation All HMO series instruments are provided with the con nector for the HO3508 logic probe necessary to add 8 di gital logic channels The firmware required for Mixed Sig nal operation is already contained in each HMO only the HO3508 active logic probe need be bought and connec ted With the 4 channel oscilloscope activation of the Pod will deactivate the analog channel 3 Therefore at the MSO mode are 3 analog channels plus 8 digital logic channels available 12 1 Logik trigger The logic trigger also for the digital channel is described in chap ter 6 5 12 2 Display functions of the logic channels With the four channel HMO the short menu in the chan nel settings is used to switch an analog channel to a di gital channel If you find there data belonging to the ana log channels 3 and 4 press the key next to the lowest soft 250MSa Refresh V Marker POD1 Fig 12 1 Logic channels settings display menu entry This is a double key the upper designation CH stands for channel the lower one PO for pod Pressing this key will alternate between those two modes The mode which is presently active will have its background shown in the colour of the respective channel Activate the Pod here At the two channel units you can activate the logic channel simply by pressing the POD button With the logic channels a logic ONE will be indicated by a bar of two pixels width a logic ZERO will be one pixel wide
124. nerally a complete message of a protocol is dis played in a row The columns include important informa tion e g address and date of the message The number of rows in the table is identical to the number of complete message frames in storage The decoding results may be saved as CSV file by using the soft menu key SAVE e g save to a USB stick TB 5Ops T 218ps 10MSa Refresh i imam Se ae Za ez h2 DD EE BO BIASA7AGAENB EMS ASTEIM MSMS Bus Table BUS1 I2C Clock SCL DO Data SDA 01 Frame Start time Type ID Len Data 1 197 892us Read 2D 2 28 000ns Write 42 State 5 110 55031 OK 8 EB8DC599AE5D6FCO OK 4 376 072us Read OE SSC3EB71D9E8 OK Samples 1 5 5 Data 0x4113B7263E5B 5MSa POD1 500 mv Example of a I2C BUS table table BUS1 2 Clock SCL DO Data SDA D1 Frame Mark Start time s yp ID Lenght Date Condition 1 197 89200e 6 Read 0x2D 5 0xF110E55D31 OK 2 28 00000e 9 Write 0x42 8 0XEB8DC599AE5bDGFCO OK 3 217 74000 6 Write Ox3B 6 0xA113B 263E5B OK 4 3 6 07200e 6 Read OxOE 6 0x55C3EB 1D9E8 OK 5 613 58000e 6 Write 0x66 8 0x91B86EE6655E2300 Data Error The soft menu key TRACK FRAME allows you to scroll through the BUS table and simultaneously jump to the cor responding position in the memory via universal knob to display details on the scree
125. ng and Blackman window function it is not equal to zero at the margin of the measurement inter val Therefore the height of the noise level in the spectrum Is greater than with the Hanning and Blackman window function but less than with the square wave window func tion However the spectral lines not as wide as in other bell shaped functions This function is useful for a precise amplitude measurement of a period signal for instance Blackman The Blackman window function is bell shaped and its waveform features the steepest fall off among the avail able functions 15 is zero at both ends of the measurement interval The Blackman window function allows you to measure the amplitudes with high accuracy However it is more difficult to determine the frequency due to the wide spectral lines This function is useful for a precise ampli tude measurement of a period signal for instance Square wave The square wave window function multiplies all points by 1 This results in a high frequency accuracy with narrow spectral lines and increased noise This function can be used for pulse response tests with start and end values of Zero Analysis The menu item Y SCALE allows you to scale the FFT in the amplitude logarithmically dBm dBV or linear Verr The unit dBm Decibel Milliwatt refers to 1 mW The unit dBV Decibel Volt refers to 1 The displayed values refer to 50 Ohm terminating resistor You can either use an inter na
126. ntacts below the screen After switch on the com As outlined in the chapter Safety all measurement connectors are connected to the mains safety earth in proper operation This implies also the COMP TESTER contacts As long as indivi dual components are tested this is of no consequence because these components are not connected to the mains safety earth ponent tester mode the Y preamplifiers and the time base are disconnected While using the component tester sig nals may be present at the inputs as long as the unit un der test is not connected to any other circuit It is possible to test components remaining in their circuits but in such cases all signals must be disconnected from the front pa nel BNC connectors See the following paragraph Test in circuits Two cables with 4 mm plugs are necessary to connect the unit under test to the component tester After completion of the component test pushing the lower soft key COMP TEST OFF leave the component tester mode and resume normal scope operation If components are to be tested which are located in circuits or instruments these circuits resp instruments must be disconnec ted first under all circumstances If they are operated from the mains the mains plug of the test object has to be pulled out This ensures that there will be no loops between the scope and the test object via the safety earth which might cause false results The test principle is a generator within the
127. of the individual logic channels on page 212 of the POD menu You also have the option to label the individual bits of the logic channel by using the soft menu NAME The procedure to assign names is identical to the one described in chapter 4 6 The option NAME On Off activates or deactivates the name for the individual bits DO to D7 The name is displayed to the right of the logic channels You also have the option to combine digital channels to form buses which will then be displayed on the screen as a cell in a table Basically two independent buses are possi ble For instance it would be possible to combine an 8 bit address bus and an 8 bit data bus To select the settings for the buses press the REF BUS button and then the MENU button in the VERTICAL section of the control panel In the menu that opens you can press the top soft menu key BUS to select which BUS you want to define B1 or B2 he active BUS is indicated in blue You can use the soft menu key BUS TYPE to choose the BUS type for the display and the analysis The BUS type determines the bus structure and is organized differently depending on serial vs parallel or the number of data and clock signals The universal knob allows you to select the BUS type PARALLEL or PARALLEL CLK Select CONFI GURATION to determine the bus source and structure The contents of the menu change with the selected BUS type After pressing the top soft menu key BUS WIDTH you can use the uni
128. ol panel to set the deviation At which defines the to lerance between set reference time t and valid and real pulse width ti permissible tolerance range Selecting ti ti t2 or not t1 ti t2 allows you to set both compa rison times time interval limits with the soft menu items TIME 1 and TIME 2 For ti lt t or ti t only one limit can be defined Time and deviation can be set with the universal knob or the KEYPAD button in the CURSOR MENU con trol panel To change the threshold values for the logic states one and zero it is necessary to use settings in the chan nel menu MENU key in the VERTICAL control panel Se lect the POD POD or CH3 POD 24 button If logic mode is already activated the digital channels will be displayed in the channel display section of the display framed and marked with POD xxxV Pressing the MENU key 21 in the VERTICAL section of the control panel allows you to activate one of five predefined logic levels Three of these are fixed for TTL CMOS and ECL After pressing the re spective menu item two customized logic levels may be set from 2V to 8V with the universal knob The soft menu 250MSa Refresh V Marker POD1 Fig 6 6 Logic channels settings display 28 key RESET POS amp SIZE activates the display for all digi tal channels of the selected group by using default values for the vertical position and size You may also define the name for the current signa
129. onstants are available For instance if you select USER1 as constant you can press the soft menu key VALUE and use the universal knob to select a numeric value You can apply the same method to set a DECIMAL POINT and enter an additional S pre 37 Analysis fix soft menu key PREFIX You may choose a UNIT from the same SI prefixes as those that are available in the soft menu EDIT Press SAVE to store these settings as USER 1 and return to the menu to edit the equation You can store up to 10 of these customized constants When saving a formula set you may also add a comment soft menu key COMMENT Press the key SAVE to save this formula set with the determined name and comment to the selected location Stored formula sets may be reloaded at any time Press the MATH key to activate the Mathematics menu and then press the MENU key below the SCALE VOLTS DIV key This menu displays the menu item LOAD This will start the file manager which will display the internal memory or the connected USB stick as possible storage location Se lect the respective formula set file and press the key LOAD to load the file 9 2 Frequency Analysis FFT In general the FFT in an oscilloscope works differently than in a spectrum analyzer and is affected not only by the time base setting but also by the available number of used acquired data points when calculating the FFT The HMO series allows you to include up to 65k point in the FFT re sulting in
130. or via numeric input KEYPAD button A small window provides information about the current settings see fig 13 13 If the option H0010 is installed it is possible to select analog and digital channels as source For the installed option H0011 only the analog channels are available as source For two chan nel instruments and a 3 wire SPI the chip select signal has to be connected to the external trigger input In addition to assigning the source the soft menu key AC TIVE allows you to select the following settings Go Chip select high or low active low active is the de fault setting CLK Data will be stored with rising or falling slope ri sing slope is the default setting DATA Data high or low active high active is the default setting TB 100ps T Os 5MSa SPI Configuration SOURCE eS CS DO 499 99m Clock 01 499 99m V Data CH1 499 99m V BIT ORDER LSB WORD SIZE BBit Serial bus analysis You can use the soft menu key BIT ORDER to determine if the data of each message starts with the MSB most sig nificant bit or the LSB least significant bit The soft menu key WORD SIZE allows you to select via universal knob how many bits are included per message You may select any value between 1 and 32 bits After the BUS configuration it will be possible to trigger on various events Press the button in the TRIGGER sec tion of the control panel and choose the soft menu key SE RIAL B
131. ows the current screen content at the time that storage takes place The soft menu STORAGE allows you to use the USB con nection on the front or back of the instrument as storage location Selecting the respective storage location is possi ble when a USB stick has been recognized If a USB stick Is connected you can also change create or delete direc tories Use the soft menu key SORT ENTRIES to sort seve ral settings files by name type size or date Press ACCEPT DIR to confirm the target directory and you will automati cally return to the screenshot main menu The soft menu key FILE NAME opens the menu for the name entry where you can use the universal knob to enter a name and confirm your entry by pressing ACCEPT SCR is the default name The screenshot main menu will dis play automatically The file format of a graphics file determines the color depth and the type of compression The quality of the va rious formats is identical for the oscilloscope graphics You can choose from the following file formats in the soft menu FORMAT i BMP Windows Bitmap Format GIF Graphics Interchange Format 1 PNG Portable Network Graphic Press the soft menu key COLOR MODE to to choose from GRAYSCALE COLOR or INVERTED with the universal knob If GRAYSCALE is selected the colors are conver ted to gray scales when the data is stored if COLOR is se lected the data is stored as it displays in the screen and if INVERTED is activate
132. pa nel is used for the selection of the time base speed The time base speed is displayed in the upper left hand corner above the graticule e g B 500ns To the right there is the display of the trigger time position with respect to the normal position he normal trigger position is in the cen ter of the graticule such that 50 of the signal display is before and 50 is after this trigger position The X Posi tion knob allows continuous adjustment of the X position The available maximum values depend on the time base setting By pushing the key SET CLR the value will be re set to its reference position The arrow keys lt P 37 allow you to change the X position by a fixed amount of 5 divisi ons in the respective direction If marker or search function Is chosen the arrow keys together with the SET CLR but ton are used to navigate through and set clear marker The key menu opens a menu which allows you to set the X po sition to its minimum and maximum positions or chose the marker function by just a key touch In addition there is a submenu NUMER INPUT which allows entry of an arbit rary X position Within this menu the search functions can be activated and set In addition the time reference can be set here position for the trigger point in time from 5 20 to 5 divisions 0 is the middle of the screen and the stan dard setting 5 3 Capture modes The capture modes are selected by pushing the key AC QUIRE this op
133. played these may be selected using trol panel area Horizontal al the soft keys 3 At the lower part of the screen measure low to shift the trigger posi ment results of parameters and cursors the settings of the tion horizontally either step activated vertical channels of the reference signal and of by step or using the smaller the mathematically derived curves 4 are shown Within one of the knobs In addition the graticule the signals of the selected channels are dis S this menu allow to manually played Normally 8 vertical divisions are shown it can be set marker and set search cri virtually extended to 20 divisions which can be displayed terias for events The backligh using the Scroll Bar knob 5 ted key 39 controls the run or stop modes the key will light up red in stop mode The key 2 4 Rear view activates the zoom func On the rear panel there are the main power switch 1 the tion the key 44 the selection receptacle for the interface modules 2 USB RS 232 of the acquisition modes the USB Ethernet IEEE 488 the standard DVI connector 3 key 42 the access to the time for the connection of external monitors and projectors the base menus The knob 43 al BNC connector for the Y output 4 of the channel selec lows to adjust the time base ted for triggering and the external trigger input 5 With speed the two channel models this connector is located on the To the left of the cont
134. r component tester mode select key 19 the vertical gain ad justment knob 20 the extended menu functions key 21 the channel select keys 22 to 25 the two channel versions have only 22 23 which also serve as the selection keys for the optional logic probes 24 25 There are also the mathe matics function 26 the reference signal settings and bus signal settings key 27 CH1 Area This area Trigger of the control panel offers all functions for the adjustment of the trigger level 28 the selection of auto or normal trigger 29 the trig d EYRE 31 the trigger voee Fig 2 4 Screen view 32 single sweep 33 the trig ger slope 34 the trigger sig nus are shown this will be reduced to 10 divisions On nal filters 36 In addition there the left of the screen area little arrows 1 indicate the refe are status indicators show rence potentials of the channels The line above the grati nici ed ing whether a signal fulfills cule contains status and settings information such as the COARSE FINE the trigger conditions 30 and time base speed the trigger delay and other trigger condi which slope was selected 34 tions the actual sampling rate and the acquisition mode 2 On the right of the graticule a short menu is shown Area J which contains the most important settings of the chan The keys 37 38 33 on this con nel actually being dis
135. r instruments Is possible The standard 2 5MSa 200us T Os CH1 DISPLAY RE1 DISPLAY Fig 10 5 Loading and storing of references 42 menu for the file manager opens which allows you to copy references between the internal memory and the external USB stick description see Chap 10 1 An additional menu is opened for storing and loading refe rences Press the REF BUS key in the VERTICAL section of the control panel to open a quick menu The bottom menu key is divided into RE reference and BU bus The current setting is highlighted in white The soft menu key RE allows you to activate each of the four possible reference curves RET REA This is done by pressing the respective soft menu key The selected reference will be displayed and highlighted in the quick menu If the reference memory is empty a file dialog opens to load a reference curve from the internal memory Open the menu to store and load by pressing the MENU key in the VERTICAL section of the control panel The top soft menu SOURCE allows you to use the universal knob to select the source for the reference to be saved You can se lect from the activated channels and mathematical curves Press the soft menu key DISPLAY to display the selected reference curve or to update the current reference curve To load a reference from a USB stick or the internal me mory open the soft menu LOAD This shows a window dis playing the internally stored r
136. r panel each 1 x max 100 DVI D for ext Monitor IEEE 488 GPIB HO740 Dual Interface Ethernet USB HO730 up to 8 user definable marker for easy navigation automatic marker using search criteria virtual Display with 20 div vertical for all Math Logic Bus and Reference Signals up to 2 busses user definable parallel or serial busses option decode of the bus value in ASCII binary decimal or hexadecimal up to 4 lines Table view of the decoded data 5 formula sets with up to 5 formulas each all channels and math memories Math memories Functions Display Pass Fail functions sources Type of test Functions General Information Component tester Test voltage Test current Test frequency Reference Potential Probe ADJ Output Bus Signal Source Internal RTC Realtime clock Line voltage Power consumption Protective system Operating temperature Storage temperature Rel humidity Theft protection Theft protection Weight Specifications ADD SUB 1 X ABS MUL DIV SQ POS NEG INV INTG DIFF SOR MIN MAX LOG LN Low High pass filter up to 4 math memories with label analog channels Mask around a signal userdefined tolerance Stop Beep screen shot screen print out and or output to printer for pass or fail event counting up to 4 billion including the number and the percentage of pass and fail events 10V open typ 10mAp
137. rate no Interlace mode This describes the so called acquisition peak detection A hardware peak detection is not available if data is written to the acquisition memory at the ADC s maximum sam pling rate For slow time bases and a repeat rate set to au tomatic or maximum value not all data from the acquisi tion memory will display on the screen With peak detec tion activated when reading out skipped data will be used to create a minimum and maximum value The smallest detectable pulse is the period of the sampling rate used to write to the acquisition memory This describes the so called memory peak detection If one of the peak detection modes or a combination of the two are used the corresponding detection mode 15 marked with PD in the upper right of the display 5 3 7 High Resolution This mode uses Boxcar Averaging via adjacent detection points i e the converter runs at the maximum sampling rate to increase the vertical resolution to up to 10 bit You can deactivate this function within the menu or you can select the automatic switching mode Averaging several adjacent sampling rates creates a value with a higher degree of accuracy than the input data The resulting data is called high resolution data The process of merging multiple sampling rates to one new value only al lows a sampling rate that is smaller than the maximum va lue If the HIGH RESOLUTION mode is activated and the current instrument setting allows t
138. re all paramgtar fer the HM LE acnptiong regarding the USE interface 20 interface card ag well ag for the optional HO730 USB part All currently available USB driver are fully tested functional and released for Windows XP 37 Bit Windows Vieta or Windows T both ag 32 or 64 Bit versions Tha USB interface must be chosen in the and doses not need any setting At the first conmection Win dowa ask for a driver The driver you can find on the If the virtual COM port wall uzed you must set USB ag inter CD or in thia intemet at vveww rohdaschwevarz aom on at the download area for the HO720 HO 730 The con nection can be dona via the normal USE or tha virtual Remote control part The description how to install the driver you can find in the HO720 730 manual 14 3 Ethernet Option HO730 The optional interface card HO730 Goes have a USB and Ethernet connection The settings of the parameter at thia H DHCP te used and the HMO does not get adress te if no ethernet cable is connected ta the scope or the network does not eupport DHCP it may take up to three minutes until a time out make the interface available again for configuration oscilloscope are done after selecting ETHERNET as the in terface and the soft key PARAMETER ie chosen You aet anything including a fix IP adress Alternative you can choas a dynamic IP setting via the DHCP
139. rical fast transient signals burst may be coupled into the oscilloscope directly via the mains line supply or indirectly via test leads and or control cables Due to the high trigger and input sensitivity of the oscilloscopes such normally high signals may effect the trigger unit and or may become visible on the TFT which is unavoidable These effects can also be caused by direct or indirect electrostatic discharge HAMEG Instruments GmbH Content 1 1 1 2 1 3 1 4 129 1 6 1 7 1 8 1 9 1 10 2 2 2 PS 2 4 279 25 2 2 8 2 9 2 10 2 11 2 12 ou 2 Jud 3 4 du 3 6 ES 4 1 4 2 4 3 4 4 4 5 4 6 5 1 9 2 969 5 4 2 9 DD 9 5 8 6 1 6 2 6 3 Installation and safety instructions 4 s A ege 4 Setting up the 4 4 Correct operation 4 Ambient 5 4 Warranty and d E EE D Tes MEET 6 Batteries and rechargeable batteries cells 6 Product Bee 6 Introduction 7 orm gag eed bey any ous oo Ses e d aw we auus hee PE XU REA eu 7 sel E E 8 Rear VieW 8 9 General concept of instrument operation 9 Basic settings and integrated help
140. rol pa nel there are the soft keys which control the menu Died functions SELECT WINDOW TIME DIV HMO2024 2 3 Screen The HMO is equipped with 6 5 16 5 LED backligh ted colour display with resolution 640 x 480 pi xels In normal mode no me Fig 2 3 Section B C and D of nus shown there are 12 di the control panel visions in X direction If me Fig 2 5 Rear panel of the HMO2024 8 front panel Also here you can find an additional USB port 6 and the main power input 7 At the two channel inst rument there is the the external trigger BNC connector at the front of the instrument 2 4 1 DVI Connector The rear panel of the oscilloscope includes a standard DVI D connector to connect external monitors and tors DVI D connector can only send digital signals This means it is impossible to connect monitors or bea mers via their analog inputs The HMO series yields a DVI signal with VGA resolution 640x480 This design enables connectivity with all standard TFT monitors Modern flat screens extrapolate the signal allowing users to see a full screen Beamers can also be connected to the HMO Ideal bea mers in this case are those designed to be connected to computers notebooks as these are also able to process a 640x480 pixel resolution Y Output connector DVI VGA or DVI composite adapters are not support
141. rt the stick into the USB port of the oscilloscope and push the key SE TUP in the GENERAL area of the front panel Choose page 2 in the menu if this has not been opened already you shall find the menu item UPDATE After selecting this menu item a window will open which displays the actual firmware version indicating the version number the date and build information Date Build Current A WEW are Software Current REMOVE Installed languages Available languages English 2012 01 12 German 2012 01 20 French 2012 01 24 Spanish 2012 01 12 German English French UPDATE Spanish Updating lanquage Spanish Loading file finished HMO_LNOO HLU Fig 2 11 Menu and information window for help udates 11 Introduction Now choose which to update the instrument firmware or the language After you selected firmware updating by pushing the appropriate key the respective date will be searched on the stick the information of the firmware to be updated from the stick will be displayed below the line NEW In case the new firmware should be identical to the existing one the number of the version will be shown in red otherwise it will be shown in green only then should you activate the updating by pushing the soft key EXE CUTE If you intend to update the language including the help or add a language choose Language in the updating menu Up to 4 languages can be installed on the HMO If four language pl
142. s IEM 2004 08 EG Niederspannungsrichtlinie Low Voltage Equipment Directive Directive des equipements basse tension Directiva de equipos de baja tensi n 2006 95 EG Angewendete harmonisierte Normen Harmonized standards applied Normes harmonis es utilis es Normas armonizadas utilizadas Sicherheit Safety S curit Seguridad DIN EN 61010 1 VDE 0411 1 07 2011 berspannungskategorie Overvoltage category Cat gorie de surtension Categor a de sobretensi n Il Verschmutzungsgrad Degree of pollution Degr de pollution Nivel de poluci n 2 Elektromagnetische Vertraglichkeit Electromagnetic compatibility Compatibilit lectromagn tique Compatibilidad electromagn tica EMV St raussendung EMI Radiation Emission CEM emisi n IEM DIN EN 61000 6 3 09 2007 IEC CISPR22 Klasse Class Classe classe B VDE 0839 6 3 04 2007 St rfestigkeit Immunity Imunitee inmunidad DIN EN 61000 6 2 VDE 0839 6 2 03 2006 Oberschwingungsstr me Harmonic current emissions missions de courant harmonique emisi n de corrientes arm nicas DIN EN 61000 3 2 VDE 0838 2 06 2009 Spannungsschwankungen u Flicker Voltage fluctuations and flicker Fluctuations de tension et du flicker fluctuaciones de tensi n y flicker DIN EN 61000 3 3 VDE 0838 3 03 2010 Datum Date Date Fecha 08 04 2013 Unterschrift Signature Signatur Signatura m D rund C Holger Asmussen
143. s by name type size or date Press ACCEPT DIR to confirm the target directory and you will automati cally return to the curve main menu The soft menu CURVE allows you to use the universal knob to select a channel which will be saved as a curve You may only select channels that have been activated via channel keys You can also save all visible channels simul taneously The soft menu key FILE NAME opens the menu for the name entry where you can use the universal knob to enter a name and confirm your entry by pressing AC TRC is the default name The curve main menu will display automatically 1 05 TB 10pns STORAGE E FILE NAME RE0001 S FORMAT gt COMMENT Fig 10 6 Menu for storing curves You can open a selection window by pressing the soft menu key FORMAT to determine the file format The uni versal knob allows you to select the desired format You can choose from the following formats BIN A binary file may contain any type of Byte value The captured curve data will be stored without any time information i CSV Comma Separated Values In CSV files curve data Is stored in table format Each table row is separated by a comma If you define the WAVEFORM RATE as Max Sampling Rate in the ACQUIRE menu two rows will be affixed with a time stamp during the CSV export because a minimum and a maximum va lue must be assigned to this time value To acquire an amplitude va
144. s operand for one of the four mathematical curves It will be calculated but will not be included in the display The MENU key in the VERTICAL control panel opens a menu to select the for mula set and its corresponding formulas You can also choose a NAME with a maximum of 8 characters load a formula set from the internal memory or from a USB stick or save a formula set internally or on a USB stick You can use the universal knob to enter the name of your choice and you can save it by using the ACCEPT key The name will now be displayed Instead of the generic labels MAT You can specify the names for all equations separa tely Once all equations constants and names have been entered you may also choose a name for this formula set by pressing the NAME key in the formula set menu and entering the name of your choice The HMO series includes five mathematical formula sets Each of these formula sets contains five formulas which may be edited with a formula editor to also define linked mathematical functions These are labeled to MAb You can use the universal knob to select the formula set TB 10us T Os er ETD __ Formulary 1 CONSTANT MA1 ADD 1100 2 SQR SIS MA3 MUL MA2 E 100 4 SQR MA5 MUL CH4 DECIMAL POINT User 1 10010 PREFIX Fig 9 4 Entry of constants and units The formula set editor soft menu key EDIT FORMULARY lists all existing equations which ma
145. s the rising slope on SDA when SCL is high of all messages as well as on a RESTART the new Serial bus analysis 500MSa MASTER Lesen ADRESSLANGE 10Bit Trigger Auf Schreib SLAVE ADRESSE Slave Adresse 0 7 Byte Offset Ox7f 11000111 Oxc7 Daten SCL CH1 504 mY SDA CH2 500mV POD1 500 mY start signal is a repeated start signal or on a NOT ACK NOWLEDGE condition The NOT ACKNOWLEDGE bit is the 9th bit in a data or address unit of the SDA line For NOT ACKNOWLEDGE the Acknowledge bit is on SDA high although it should be low The soft menu key READ WRITE offers additional trigger options You can use the soft menu key MASTER to toggle the trigger condition between read and write access The Sth bit of the first data unit depending on the address length is used to distinguish between read and write ac cess The selected condition is displayed in the 12C settings window and is highlighted by the menu key in blue The address length in bit defines the maximum num ber of slave addresses to be used with the bus For a bit address length the maximum number of available addres ses is 112 The 10 bit addressing mode is downward com patible with the 7 bit addressing mode by using 4 of 16 re served addresses and can be used simultaneously For a 10 bit address length total of 1136 addresses 1024 128 16 is available The highest 10 bit address is 1023 OxSFF The selected address lengt
146. s via universal knob or numeric input KEY PAD button The IDLE TIME describes the minimum time between the stop bit of the last data and the start bit of the new data The sole purpose of the idle time is to define the start of a transmission and consequently the exact start of a frame one or more symbols most commonly bytes Only this information can guarantee correct decoding and triggering TB 20ps T Os RATE 115200 s Start Bit IDLE TIME Source DO High Active Symbol rate 1152005 5 Idle Time 992ns INPUT Idle Time 4 PAGE 22 POD1 500mVv 1GSa regardless of the trigger type A start bit within the idle time will not be recognized You can enter the value via universal knob or numeric input KEYPAD button After the BUS configuration it will be possible to trigger on various events Press the button in the TRIGGER section of the control panel and choose the soft menu key SERIAL BUSES Then press the SOURCE button in the TRIGGER section and choose UART This will only be available if it was configured earlier Press the FILTER but ton in the TRIGGER section of the control panel to list all available UART trigger conditions The trigger condition START BIT sets the start bit as trig ger event The start bit is the first O bit that succeeds a stop bit or idle time The soft menu key FRAME START de fines the first start bit after idle time The soft menu key SYMBOL lt N gt as
147. second time The universal knob is used in the diverse menus either for selecting numbers or submenus and to enter values by pushing The universal knob in cursor measurement is used for selecting and moving the cursor The key Menu OFF below the soft menu keys closes the present menu or it switches to the next higher level If a channel is deactivated pushing the respective channel key will switch it on If a channel was already activated earlier selecting another channel will change operation to the channel whose key was pushed its LED lights up If a channel is already selected pushing its lighted key will deactivate the channel and select the next channel according to this sequence CH1 gt CH2 gt CH3 gt The COARSE FINE key is used to switch betwen coarse and fine resolution of the universal knob If the key is light up white the FINE resolution is active Introduction The following describes some frequently used navi gation elements in the soft menus Fig 2 7 shows there are two basic soft menu parts for choosing To select from the three elements above you just need to press the soft key BESIDE and the element is active shown as blue color A second kind of selecting Is shown on the lower two menu entries Pressing the re spective soft key toggles between the two choices again the active selection is marked blue CHANNEL 1 DC OFFSET Off DESKEW Os Off PROBE THRESHOLD
148. ses are active 1 Logic trigger not active If the interlace mode is possible it will be activated auto matically The following table displays channel configura tions that allow the operation in interlace mode Interlace group 1 Interlace group 2 CH1 CH2 CH3 CH4 ON Off Off Off Off ON Off Off Off Off ON Off Off Off Off ON ON Off ON Off Off ON ON Off Off ON Off ON Tab 5 2 Channel configuration in interlace mode 5 5 ZOOM function The HMO series features a memory depth of 2MB per channel This allows the user to record long and complex signals which can be analyzed in full detail with the Zoom function To activate this feature press the ZOOM key 40 The screen will be divided into two sections The upper window displays the entire time base window whereas the lower graticule shows an enlarged section of the up per window he enlarged signal section is marked by two blue cursors in the original signal upper window If sev eral channels are activated in Zoom mode all displayed channels will be zoomed simultaneously by the same fac tor and at the identical position Fig 5 5 displays the Zoom window with 100 us per divi sion The signal was captured within a time window of Horizontal System Time Base Refresh 100kSa Fig 5 5 Zoom function 12ms The zoom area lower grid also displays the param eter for zoom time base whereas time is displayed above the zoom window Z indicates the zoom time base zoom
149. signs a predefined Nth symbol as trigger event The soft menu ANY SYMBOL allows you to define any symbol to trigger on The symbol can be located any where within a frame The serial bit sequence PATTERN INPUT can be entered as binary or hexadecimal value If you choose the binary input the soft menu key SELECT BIT and the universal knob allow you to select which individual bits within the data are to be edited Se TB Sus 23 4 us 400MSa UART B1 _ UART Trigger SYMBOL OFFSET ist Symbol Symbol 3 Trigger Trigger Symb Y NUMB OF SYMB 3Symb E PATTERN INPUT Source 02 High Active Bit rate 115 2kBit s Bin Idle Time 600 06us T SELECT SYMBOL Trigger on Pattern 110000000 111101000 011100000 0x3 0x2 f 0xe Di POD1 500mv 200MSa Serial bus analysis lect the option STATE to assign a logic state to each bit High H 1 Low L or X don t care The state X defines any state If you choose the hexadecimal input the soft menu key VALUE and the universal knob allow you to set the value for the respective symbol If the input is he xadecimal only the entire symbol can be set to X Use the soft menu key SELECT SYMBOL to toggle between symbols The soft menu PATTERN offers additional options for UART trigger settings The soft menu key SYMBOL OFFSET and the universal knob are used to select the number of irrelevant symbols that proceed the pattern within the frame that are relevan
150. soft menu key below that allows you to select the second operand Only activated and displayed chan nels are available for the operands Press the bottom soft menu key FORMULARY This opens the formula editor to select and define 5 potential sets of formulas with up to 5 mathematical functions each To change the settings use the soft menu keys and the universal knob 4 Here you can define and store the most frequently used formulas After selecting the desired for mula and pressing the soft menu key EDIT you can edit individual formula functions Once a mathematical func tion has been defined and activated by pressing the soft menu key VISIBLE ON the short menu for the mathema tical functions will display this function The graph will be marked in the short menu by a red dot The sources selec ted in the function must be activated so that the mathema tical graph can be calculated and the result signals can be displayed Your HMO can store 5 different kinds of data Instrument settings 1 Reference signals i Signals up to 24000 points Screen displays 1 Sets of formulae TB 10s T Os 5 4 1 CREENSHOT 4 Ge 4 e Signals and screen displays can only be stored on USB sticks All other data can be stored either on a USB stick or in the instrument s non volatile memories In order store data you have to define the kind of data and the de stination First attach a USB
151. stick to the front panel con nector Press SAVE RECALL im order to call the respec tive menu Select the kind of data by pressing the respec tive soft key in this example Screenshots in order to ac cess the settings menu Please verify that the USB connector into which you plugged the USB stick front or rear is written in the top TB 200us T Os STORAGE FILE FORMAT COLOR MODE A quick introduction soft menue You can change the destination by opening the respective menu if you press the softkey next to STO RAGE You can now save a screenshot if you press the softkey next to SAVE using the predefined name written in the menu below FILE NAME You may name the desti nation memory with up to 8 characters in order to do this select the menu item File name and define the name by using the universal knob selecting a character by turn the knob and enter by pushing the knob TB 200us T Os 2 5MSa Enter a file name BACKSPACE lt DEFAULT NAME Press SELECT to select a character CURSOR CURSOR ACCEPT After the soft key next to ACCEPT was pressed the oscillo scope will have stored the name and return to the settings menu Here you can now store the actual screen display by pressing the Store soft key Alternatively you can return to a lower menu level by pressing the lowest Menu OFF key and select the menu Item key FILE PRINT In the fol lowing menu press the soft menu key next to Scre
152. t The oscilloscope allows you to store and recall all screen dis plays user defined settings e g the trigger conditions and time base settings reference curves simple curves and sets of formulas There is an internal memory for reference cur ves instrument settings and sets of formulas These data co pies of screen displays and curve data can also be stored on an USB stick The USB stick should not exceed 4GB and must be FAT format ted FAT32 It should be avoided to store a large number of files on the USB stick You can access the main menu to store and load functions by pressing the SAVE RECALL key The soft menu DEVICE SETTINGS allows you to save cur rent instrument settings load saved settings and import or export instrument settings 2005 T Os 2 5 IMPORT EXPORT 4 DEFAULT SETT T Press the soft menu key SAVE to open the SAVE menu You can use the soft menu key STORAGE to select a pos sible location internal memory front or back USB connec tion where you would like to save the instrument settings Pressing this key opens the file manager The FILE NAME can be changed or adjusted to the corresponding set Deveice settings in the SCP format can be also loaded after firm ware update ting SET is the default label You can use the soft menu key COMMENT to enter a comment which will be dis played in the file manager footer once a file has been se lected With the soft key FORMA
153. t sampling rate The minimum value is determined by the maximum sampling rate and the maximum signal repeat rate of the oscilloscope The displayed sampling rate corre sponds to the current sampling rate divided by the amount of data skipped while reading out from the acquisition me mory If peak detection is activated the displayed samp ling rate corresponds to the current sampling rate 5 3 8 2 MAX SAMPL RATE If this function is activated the instrument always sets the maximum sampling rate while using the maximum memory available The MAX SAMPL RATE function always uses the maxi mum sampling rate and displays the maximum amount of data Each column in the signal window displays up to 40 detected data values limited by processor performance How much data is currently displayed depends on the dis played time window and the current sampling rate If peak detection is activated each column displays up to 20 pairs of min max values The memory depth always corresponds to the maximum acquisition memory The displayed sampling rate is identi 21 Horizontal System Time Base Refresh Fig 5 3 AM modulated signal with maximum sampling rate cal with the current sampling rate Peak detection 15 used if the displayed time window contains more data than 40 signal window columns in the acquisition memory or min max data in the acquisition memory The entire oscilloscope memory can only read out by inter face
154. t for the trigger event Any value between 0 to 4095 symbols after the start bit may be entered Use the soft menu key NUMB OF SYMB to select the number of relevant symbols as 1 2 or 3 The number of symbol defines the pattern size The symbol length 5 to 9 bit was configured at the time of the bus definition and will be observed accordingly in the trigger menu TB 100pgs T Os Any Symbol Parity Bit Even Source D2 High Active Symbol 1152005 5 Idle Time 600 5 UART B1 pane ERROR j m Trigger on Parity Error 22 5 The value input for the symbols may be binary or hexade cimal as described above Use the soft menu key PAT TERN INPUT for this selection If binary input is selec ted the individual bits can be assigned via soft menu key SELECT BIT and the universal knob The soft menu key STATE allows you to determine the state for each bit 1 0 or X If you choose the hexadecimal input the soft menu key VALUE and the universal knob allow you to set the va lue for the respective symbol Use the soft menu key SE LECT SYMBOL to toggle between symbols The active byte will be marked with a green border in the display win dow of the trigger condition Press the MENU OFF button twice to close all menus and the oscilloscope will trigger on the set data Use the respective soft menu key on page 2 2 of the UART trigger filter menu to select a PARITY ERROR trigger with a pari
155. t of it have no impact on the trigger event for instance if the bit offset 2 bit and bit 1 after CS will be ignored and the pattern begins with bit 2 You can select a value between 0 and 4095 via universal knob enter it numerically KEYPAD button The soft menu key NUMBER OF BITS allows you to select how many bits will be analyzed for the trigger condition You can select a va lue between 1 and 32 bit via universal knob The serial bit sequence PATTERN INPUT can be entered as binary or hexadecimal value If you choose the binary input the soft menu key SELECT BIT and the universal knob allow you to select which indivi dual bits within the data are to be edited The option STATE allows you to assign a logic state to each bit High 2 H 1 Low L 0 or X don t care The state X defines any state If you choose the hexadecimal input the soft menu key VALUE and the universal knob allow you to set the va lue for the respective nibble 4 bit If the input is hexade cimal only the entire nibble can be set to X Use the soft menu key SELECT NIBBLE to toggle between nibbles The active nibble will be marked with a green border in the dis play window of the trigger condition see fig 13 15 Press the MENU OFF button three times to close all menus and the oscilloscope will trigger on the set bit sequence 13 6 UART RS 232 BUS The UART Universal Asynchronous Receiver Transmitter bus Is a general bus system and the base
156. t overshoot The measurement will only be applied to the selected channel and requires a minimum of one complete period of a triggered signal LOWER LEVEL This mode measures the mean voltage level of the lower square wave This mode calculates the mean value of the slope without overshoot The measurement will only be applied to the selected channel and requires a minimum of one complete period of a triggered signal PULSE WIDTH This mode measures the width of the positive pulse A positive pulse consists of a rising slope followed by a fall ing slope This measurement type identifies the two slopes and calculates the pulse width from their time difference The measurement will only be applied to the selected channel and requires a minimum of one completely dis played period of a triggered signal PULSE WIDTH This mode measures the width of the negative pulse A negative pulse consists of a falling slope followed by a ris ing slope This measurement type identifies the two slopes and calculates the pulse width from their time difference The measurement will only be applied to the selected channel and requires a minimum of one completely dis played period of a triggered signal DUTY RATIO This mode measures the positive duty ratio In this mode positive signal portions are identified over a specific pe riod and will then be analyzed in relation to the signal pe he measurement will only be applied to the selecte
157. the third will be shown The presentation will be in floating point format in percent in degrees and in radians V MARKER With the logic channels the logic value of the selected POD will be measured at the position of the respective cur sor and shown in hexadecimal and decimal formats 12 4 Auto measurements for logic channel If the logic channels are switched on you can use the au tomeasure function to measure some parameters These parameters can be chosen from FREQUENCY PERIOD PULSWIDTH DUTYCYCLE DELAY PHASE BURSTWIDTH NUMBER PULSE and NUMBER EDGE pos neg Like all auto measurements you can switch on statistic on page two of the automeasure menu 48 13 Serial bus analysis 13 1 The options HOO10 HOO11 and HOO12 The HMO series can be equipped with three options to trigger and decode serial buses The option HOO10 can be used to trigger and decode 2 SPI and UART RS 232 buses on the digital chan nels option logic probe HO3509 and on the analog in puts This option allows the decoding of two serial buses simultaneously The option HOO11 can be used to trigger and decode 12 SPI and UART RS 232 buses on analog inputs only and it only allows the decoding of one serial bus at a time The option HOO12 can be used to trigger and decode CAN and LIN bus es on the digital channels option logic probe HO3508 and on the analog inputs This option allows the decoding of two serial buses simultan
158. tly set trigger source frequency will be determined with a hardware counter with a high accu racy of 6 digits TRIGGER PERIOD This mode measures the duration of periods of the trigger signal with a hardware counter 8 2 1 Statistics for Automatic Measurements If automatic measurement functions are defined you can view statistics for these parameters on page 212 of the AUTO MEASURE menu The statistics allow you to eval uate a periodic signal over a number of measurements Measurements The results current value minimum maximum mean value standard deviation and number of measurements are shown in table format in the display window Statis tics are available for up to 1 000 captures and you can de fine the desired number with the universal knob The mean value and the standard deviation are identified by means of the most current n values where n corresponds to the set captures soft menu key NO OF AVERAGES Minimum and maximum of the measurement value applies to the to tal number of measurements he total number of mea surements will be displayed in the statistics The key RE SET STATISTIC resets the statistics All recorded values are erased This function can be used to restart the statistics at a defined point The key CLEAR MEASUREMENTS de activates the automatic measurements 500us T Os 1MSa 1000 RESET STATISTIC CLEAR o Deviation o Deviation MEASUREMENTS Type Current Minimum Maxi
159. to the bus signal source menu select the page 2 and press the soft menu key next to PROBE COMP Now you can select the operational mode for the bus sig nal source For each mode a picture with the correspon ding pattern of signals on the contacts is displayed Pres sing a soft menu key will open a submenu for choosing the speed of the mode selected 5 51 S2 S3 TL SQUARE WAVE signal signal no signal Square wave SPI Chip Select clock data no signal Low aktiv rising edge high active 2 no signal Clock SCL data SDA signal UART signal signal data no signal Pattern Bit O Bit 1 Bit 2 Bit 3 Counter Bit O Bit 1 Bit 2 Bit 3 The square wave signal for probe compensation 15 availa ble with 1 kHz the low frequency compensation and with 1 MHz for the high frequency compensation also AU TOMATIC standard setting may be selected In the auto matic mode the output will provide 1 kHz at sweep speeds from 100 us div at faster sweep speeds 1 MHz will be available These signals allow to learn and check the set tings for the parallel and optional serial bus analysis 2 9 Updates for the firmware the help functions and languages The HMO series is being improved continuously You are invited to download the most recent firmware under www hameg com Firmware and help are packed into one ZIP data packet After downloading the ZIP data unpack it into an USB stick s basic directory Thereupon inse
160. trigger circuit i AUTO LEVEL Automatic filter setting default setting AC The trigger signal is coupled via high pass filter with a minimum cut off frequency of 5 Hz which suppresses the DC portion of the triggering signal With a changing DC portion the trigger level remains at the set point in the AC signal The trigger type AUTO AUTO NORM key includes the Peak Peak mode which sets limits for the trigger in the AC signal This setting means that the trigger condition will be met for any applied signal without having to set the 26 level For the trigger type NORM AUTO NORM the Peak Peak mode is deactivated allowing the trigger level to be moved past the peak values of the signal i DC he trigger signal is coupled to the trigger circuit with all signal portions AC and DC voltage This has no impact on the triggering signal i HF The trigger signal is routed a 30kHz 3dB high pass filter The trigger level is no longer adjustable This mode should only be used with very high frequency signals 1 LP low pass The trigger signal is coupled via low pass with a maximum cut off frequency of 5 kHz This filter removes high frequencies and is available with AC and DC coupling i NR noise reduction low pass filter with a maximum cut off frequency of 100MHz will improve the noise performance for the trigger amplifier This filter removes high frequencies and is available with AC and DC coupling The co
161. ty filter a FRAME ERROR trigger with a frame er ror or a BREAK trigger with a break as the desired trig ger condition The BREAK condition is fulfilled if a stop bit does not succeed a start bit within a specified time period The stop bits low are active during the break 55 Serial bus analysis 13 7 CAN BUS The CAN Controller Area Network BUS is a bus sys tem primarily developed for automotive applications and Is used for the data exchange between controller units and sensors It can be found increasingly in the avia tion healthcare and general automation industries At the physical level CAN is a differential signal therefore a dif ferential probe e g HZO40 is recommended for decod ing although standard probes are equally suitable to cap ture the signals The standard data rates range between 10 kBit s and 1 MBit s A CAN message primarily consists of a start bit the Frame ID 11 or 29 bit the data length code DLC the data a CRC acknowledge and an end bit 13 7 1 CAN BUS Configuration Prior to the BUS configuration it is necessary to set the correct logic level for the digital channels see chapter 11 2 or the ana log channels see chapter 4 5 The default setting for both is 500 mV Make sure that a complete message of a serial protocol is al ways displayed on the screen to ensure decoding can function properly The Zoom function allows you to view details for any specific message To decode th
162. u Use the universal knob to select the menu item SEARCH Once this mode is activated you can define events e g a rise time with specific attributes such as 12ns he search function will then look for these events in STOP mode in the most current capture Press the menu item SEARCH TYPE and use the universal knob to select the desired search criteria The following functions are available i Slope Comparable to the slope trigger this function searches for slopes in the signal The point in time of a detected slope corresponds to the point in time when the signal leaves the set hysteresis The soft key LEVEL selects a level for the slope detection of the search function The search function level matches the trigger level of the slope trigger for instance Level and hysteresis will display in the signal window The hysteresis determines the area that the signal has to pass until a valid slope is detected This area also defines the rise time of the slope It is recommended to select a sufficiently large hysteresis to reduce noise on the signal slope Pulse width Comparable to the pulse width trigger this function searches for pulses with a predetermined pulse width A pulse always consists of a rising and a falling slope Leaving the hysteresis defines the start and end time of the pulse The level for the search function corresponds to the trigger level of the slope trigger for instance Level and hysteresis will display in the signal
163. ument 2 11 Self Alignment The instrument must have reached the required operating tempe rature switched on for at least 20 minutes and all inputs must be unused in other words all cables and probes must be removed from the inputs The HMO 72x 202x series has an internal self alignment in order to achieve highest accuracy possible During the standard self alignment the HMO adjusts verti cal accuracy offset time base and several trigger settings and saves the identified correction data internally To start the self alignment in the SETUP menu go to page 2 2 press the soft menu key SELF ALIGNMENT and press the START key The procedure will run for about 5 10 mi nutes Each step and its corresponding progress will be shown in a bar display After completion of a successful self alignment you will see a similar message as shown in Fig 2 14 Inputs Acquisition Y Amplifier Trigger DB Check Fig 2 14 Successful self alignment Press the soft menu key EXIT to close the Self Alignment menu Abort the self alignment by pressing the soft menu key ABORT Aborting the self alignment procedure should be the exception e g if you failed to remove all probes from the inputs Once the procedure has been aborted it is important to carry out a complete self alignment Introduction 2 12 Logic Probe Self Alignment The self alignment for the logic probe primarily aligns the switching levels If an error occurs durin
164. ument must be shut down and secured against any unintended operation Safe operation can no longer be assumed If the instrument shows visible damage If the instrument includes loose parts If the instrument no longer functions properly 1 After an extended period of storage under unfavorable conditions e g outdoors or in damp rooms 1 After rough handling during transport e g packaging that does not meet the minimum requirements by post office railway or forwarding agency 1 4 Correct operation Please note This instrument is only destined for use by personnel well instructed and familiar with the dangers of electrical measurements For safety reasons the oscillo scope may only be operated from mains outlets with safety ground connector It is prohibited to separate the safety ground connection The plug must be inserted prior to con necting any signals The oscilloscope is destined for opera tion in industrial business manufacturing and domestic si tes The instrument is destined for in door use only 1 5 Ambient conditions Operating ambient temperature 5 to 40 C During transport or storage the temperature may be 20 C to Do not obstruct the ventilation holes 0 C Please note that after exposure to such temperatu res or in case of condensation proper time must be allo wed until the instrument has reached the permissible tem perature and until the condensation has evaporated be for
165. upling types low pass and noise reduction may not be ac tivated simultaneously The slope trigger can be coupled with a so called Irig ger This option is available after pushing TYPE This func tion allows you to adjust the trigger such that first condi tion must be met and then another condition be fore the trigger will respond refer to Fig 6 3 E g it is possible to define a source channel and a level of 120mV on the rising slope of that signal and for the se cond condition a level of 80 mV on the falling slope Addi tionally it is possible to define whether the B event should occur a time min 32ns max 10s or a number min 1 max 216 of times after the A event The level or time or the number of events can be entered numerically with the universal knob or in a submenu In order to do this first se lect the setting then push the soft key next to NUMERIC INPUT In the window which will open you can enter num bers and units with the universal knob or numerical with KEYPAD button 6 4 Pulse trigger The pulse trigger allows triggering for specific pulse widths of positive or negative pulses or for pulse width ranges The oscilloscope triggers if a pulse occurs within the signal se lected in the SOURCE menu that matches the properties set in the FILTER menu pulse fulfills the trigger condi tions the oscilloscope triggers on the trailing slope i e for a positive pulse it triggers on the
166. ve bits with identical value in the bit stream to be transmitted A stuff error occurs if the 6th identical bit level is detected in the specified sections FORM A form error occurs if a fixed bit field contains one or several invalid bits TB 20us T Os CAN B1 62 5MSa ID DLC Data CH2 CAN H NL a a Bit rate SOkBit s Bit time Sample point 50 Identifier 11Bit Data Equal XX XXX XXXXXXXX Data 2Byte Equal 0x13 Ob 00010011 00001011 Fig 13 22 CAN data trigger menu i ACKNOWLEDGE An authentication error occurs if the transmitter receives no authentication acknowledge i CRC Cyclic Redundancy Check CAN BUS applies a complex checksum calculation Cyclic Redundancy Check The transmitter calculates the CRC and transmits the result in a CRC sequence The receiver calculates the CRC in the same manner A CRC error occurs if the calculated result deviates from the received CRC sequence The soft menu key IDENTIFIER identifies the priority and the logical address of a message In the menu that opens you can press the top soft menu key to select the FRAME TYPE general data read data or read write data via uni versal knob The soft menu IDENTIFIER SETUP below al lows you to specify the length of the identifier type via soft menu key ID TYPE and universal knob 11 bit base or 29 bits for extended CAN frames The soft menu key COM PARE defines the comparison function If the pattern inclu
167. versal knob to select a bus width from 1 16 bits The table displaying the bit assignments will be adjusted dynamically depending on your choice Each bit of the dis played bus has a source The source refers to the indivi dual POD bits Based on the measurement setup the sour ces can be assigned via soft menu key SOURCE and the Mixed Signal Operation universal knob The soft menu keys PREVIOUS NEXT BIT allow you to move the position of the selection bar for the source of the individual bits The selected bit is highlighted in blue The left side of the table contains the bits in fixed sequence beginning at the top with DO 2 LSB The uni versal knob allows you to assign a real logic channel to the selected BUS bit The allocation is not subject to restric tions you can also use partially identical logic channels in the two possible buses If you select PARALLEL CLOCK as BUS TYPE you can also use the bottom soft menu key CONTROL WIRES to select sources for CHIP SELECT and you can use the uni versal knob to select the settings for CLOCK The soft menu key ACTIVE is used to determine if the chip select signal High or Low Active is selected The soft menu key SLOPE allows you to toggle between ri sing falling and both slopes The active selection is always highlighted in blue and is listed after the label CLK in the bit source window Press the MENU OFF button to return to the BUS main menu The soft menu DISPLAY SETUP opens a
168. wave signal TB 100ps T Os CH1 479 5MSa Refresh 50mv TB 500us T Os 524 mV Refresh 200 m With the knob 43 you can change the displayed time win dow turning it CCW will slow the time base The memory depth of 1 MB per channel allows you to capture wide time windows with high resolution Continue to turn the knob CCW until you read B 5ms in the top left corner Now press the ZOOM key 40 A quick introduction You see now a two window 50015 T Os 496 FAL Refresh HORIZONTAL display the display will show in the top area the complete captured signal below an en larged portion Use the time base knob to select the zoom factor and the small knob for EN e horizontal positioning POSITION By pressing the ZOOM key again the zoom mode be will be deactivated CH1 V1 97158 mY 2 979 58mv At 1 00ms CH1 200 CH1 524 FAC 100kSa Refresh Your oscilloscope offers these possibilities i the definition of the display of 6 parameters which may come from different sources quick view of all important parameters of one source using the Quick View function Please change the time base to 100 us per scale division and press the QUICKVIEW 110 key You will see the follow ing display TB 100ygs T Os CH1 500 mv AL Refresh Vp 979 58mV CH1 200 mv After displaying t
169. when the FFT is activated This means that the large knob in the time range section is used to select the span The span is specified in the unit Hz Hertz and identifies the width of the shown frequency range The span posi tion can be determined by selecting the Center value You may use the horizontal encoder X Position for this purpose The shown frequency range ranges from Center Span 2 to Center Span 2 The minimum increment depends on the time base The greater the time base the smaller the span Another important element for the FFT is the setting Max Sampling Frequency in the AC QUIRE menu of the HMO instrument The soft menu key MODUS allows you to choose from the following display types Refresh This mode calculates and displays the FFT without addi tional evaluation or editing of the captured data The new input data 15 captured displayed and overwrites previously stored and displayed values Envelope In the Envelope mode the maximum deflections of all spectra will be stored separately in addition to the cur rent spectrum and will be updated with each new spec trum These maximum values will be displayed with the in put data and create an envelope curve he spectrum is lo cated within the envelope limits This forms an area or a sleeve including all occurrences of FFT signal values With us COT MESE MODE Refresh dBm dBY Veff FFT OFF Center 25 MHZ Refresh Span 50 MHZ Fig 9 6
170. y be edited A blue bar indicates that an equation is selected It is important to distinguish between editing the display and editing the parameters Use the universal knob to select the res pective equation and activate it by pressing the soft menu key VISIBLE An activated visible equation is marked by a filled in eye symbol in the formula editor and is listed in the short menu In the soft menu UNIT you can use the universal knob to select from the following units V Volt iV Volt Yokto 10 24 LA Ampere iK Kilo 103 19 Ohm 1M Mega 109 VA Volt per Ampere 1G Giga 109 WW Watt ml Tera 1012 1 VA Volt Ampere iP Peta 1015 VAr reactive power LE Exa 1018 1dB decibel IZ Zetta 1021 im Milli 10 3 Yotta 1024 Iu Mikro 10 9 i dBm decibel milliwatt mn Nano 10 9 1 dBV decibel Volt Ip 10 12 LS second 1 f Femto 10 15 Hz Hertz Atto 10 18 Farad E Zepto 10 21 H Henry Analysis 1 percent Wb Weber 1 degree n Tesla TT PI dez decimal Pa Pascal bin binary im meter hex hexadecimal 1g Acceleration oct octal 1 C Degress Celsius 1 DIV Division division IK Kelvin 1px pixel TE Degrees Fahrenheit Bit Bit I N Newton Bd Baud IJ Joule Ga Sample IC Coulomb The unit selected for the equation will be applied to the channel description cursor types an
171. y recommended to observe the necessary precautions when handling MOS components which can be destroyed by static charges and even tribo electricity 11 2 In circuit tests They are possible in many cases but deliver rarely clear re sults By paralleling of real or complex impedances es pecially if those are fairly low impedance at 50 2 200 Hz there will be mostly great differences compared to indi vidual components If circuits of the same type have to be tested often service comparisons with intact circuits may help again This is also quickly done because the intact cir cuit has not to be functional also it should not be ener gized Just probe the various test points with the cables of the component tester of the unit under test and the in tact unit and compare the screen displays Sometimes the 45 Component test 200H2 COMP TEST OFF Frequency 50 2 Fig 11 1 Component tester at short unit under test may already contain an intact portion of the same type this 151 e g the case with stereo circuits push pull circuits or symmetrical bridge circuits In cases of doubt one side of the dubious component can be un soldered and this free contact should then be connected to the COMP TESTER contact which is not identified as the ground contact This will reduce hum pick up The contact with the ground symbol is connected to the scope chassis and is thus not susceptible to hum pick up 46 12 Mixed Sig
172. y using the soft menu key MEAS PLACE and the universal knob A maximum of two mea surements are possible simultaneously These may origi nate from two different sources The measurement source soft menu SOURCE is indicated by the font color of the respective result The results are displayed at the bottom of the screen If n a is displayed the measurement is not Measurements TB 500ps T Os 1MSa Rise Time 8096 SOURCE CH1 12 Fig 8 2 Menu for the automatic measurements settings applicable to the signal For instance this may be the case for a voltage measurement on a POD because only logic states without voltage reference are displayed here If is displayed the display does not show a complete mea surement result For instance the period to be measured may not display completely and can consequently not be identified The list of available sources only includes displayed chan nels possible sources are analog digital and mathematical channels The following kinds of measurement are available MEAN This mode measures the mean value of the signal ampli tude If the signal is periodic the first period on the left of the screen will be used for the measurement The mea surement will only be applied to the selected channel RMS This mode identifies the effective value from the displayed view of the signal If the signal is periodic the first period on the left of the screen will be us

Digital Oscilloscope HMO series 72x...202x 70

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