250 MHz Digital Oscilloscope HMO2524 Manual English
General information regarding the CE marking General information regarding the CE marking KONFORMITÄTSERKLÄRUNG DECLARATION OF CONFORMITY DECLARATION DE CONFORMITE Hersteller Manufacturer Fabricant HAMEG Instruments GmbH Industriestraße 6 D-63533 Mainhausen Die HAMEG Instruments GmbH bescheinigt die Konformität für das Produkt The HAMEG Instruments GmbH declares conformity of the product HAMEG Instruments GmbH déclare la conformite du produit HAMEG instruments fulfill the regulations of the EMC directiv
Contents General information regarding the CE marking 2 250 MHz Digital Oscilloscope HMO2524 4 Specifications 5 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Installation and safety instructions Setting up the instrument Safety Correct operation Ambient conditions Warranty and repair Maintenance CAT I Mains voltage 6 6 6 6 7 7 7 7 7 2 2.
HMO2524 250 MHz 4 Channel Digital Oscilloscope HMO2524 NEW Oscilloscope numérique 350 MHz 2 / 4 voies HMO3522 / HMO3524 HMO3524 HMO2524 Nouveau Sonde logique 8 voies HO3508 Mask test � Sacoche de transport HZ99 Passive Probe 1000:1 HZO20 Sonde active HZO30 AC/DC Current Probe 100/1000A HZO51 4 Subject to change without notice � � � � � � � � � � Echantillonnage temps réel de 4 GSa /s, et aléatoire de 50 GSa /s, convertisseurs A / N flash à faible niveau de bruit (classe de référence) � 4MPts
Specifications 250 MHz 4 Channel Digital Oscilloscope 250MHz MHz 44 Channel Channel Digital Digital Oscilloscope 250 HMO2524 Oscilloscope HMO2524 HMO2524 All data valid at 23 °C after 30 minute warm-up Alldata datavalid validat at23 23°C °Cafter after30 30minute minutewarm-up warm-up All Display Display Display Display: 6,5” VGA Color TFT Display: 6,5”xVGA VGA Color TFT TFT Display: 6,5” Resolution: 640 480 Color Pixel Resolution: 640xx400cd/m 480 Pixel Pixel2 Resolution: 640 480 Backlight: LED Backlight:
Installation and safety instructions Mathematic functions Number of formula sets: Sources: Mathematic functions Targets: Number of formula sets: Functions: Sources: Targets: Display: Functions: 5 formula sets with up to 5 formulas each All channels and math. memories Math. memories 5 formula sets with up to 5 formulas each ADD, SUB, 1/X, ABS, MUL, DIV, SQ, POS, NEG, All channels and math. memories INV, INTG, DIFF, SQR, MIN, MAX, LOG, EXP Math. memories Up to SUB, 4 math.
Installation and safety instructions conforming to the minimum standards of post, rail or transport firm) 1.3 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 oscilloscope 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 connecting any signals.
Introduction 1 54 53 52 51 50 49 A 2 48 47 B 46 C 45 D Fig. 2.1: Frontview of the HMO2524 2 Familiarize yourself with your new HAMEG Digital Storage Oscilloscope 2.
Introduction 24 25 . There are also the mathematics function key 26 and the reference signal settings key 27 . Area C : T his ar ea T RIG GER of the contr ol p anel of fer s all functions for the adjustment of the trigger level 28 , the selection of auto or normal trigger 29 , the trigger type 31 , the trigger source 32 , single C sweep 33 , the trigger slope 34 , the trigger signal filters 36 .
Introduction – 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. If there are further pages on the same level, the lowest menu point will be used for navigation. It shows the number of menu pages on this level as well as the activated number of pages.
Introduction 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 updated 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 menu item UPDATE.
Introduction 3 A quick introduction The following chapter is intended to introduce you to the most important functions and settings of your new HAMEG HMO oscilloscope in order to allow you to use the instrument immediately. The internal calibrator signal output is used as the signal source, so you will not need any additional instruments for the first steps. 3.1 Fig. 2.12: „UPGRADE“ menu. Now open the „UPGRADE“ menu by pressing the respective soft menu key.
A quick introduction On the right hand side of the screen you will see a short menu of channel 1, the soft keys allow you to select frequently used settings. Press the top soft key once to change the input coupling to DC. You see now a two-window display: the display will show in the top area the complete captured signal, below an enlarged portion. Use the time base knob to select the zoom factor and the small knob for horizontal positioning.
A quick introduction 3.5 Automatic measurements In addition to cursor measurements the most important signal parameters can be displayed. Your HAMEG oscilloscope offers these possibilities: – the definition of the display of 2 parameters which may come from different sources – the appropriate softkey’s the parameter measurements are displayed in the right bottom corner of the screen. If you press the softkey beside TYPE you can choose the parameter you want from the list using the general knob.
A quick introduction Fig. 3.12: Formula editor Fig. 3.14: Menu SCREENShOTS In order to change the settings use the soft keys and the universal knob. Here you can program and store the formulae most used. As mentioned earlier these formulae can be quickly switched on and off by pressing the MATH key 26 and using the appropriate short soft menue.
A quick introduction VO 4 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 is only usable for 1:1 and 10:1 probes, for 100:1 or 1000:1 probes special external generators with a perfect step response have to be used. Please use the shortest possible ground connection.
Vertical system marker indicates the position, the other the offset (refer to Fig. 4.4). The offset is individually adjustable for each channel. Each analog channel may also be shifted in time by ±15 ns. This adjustment is selected in the same menu and according 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.
Horizontal System 5 displayed such that, with time, an envelope of the signal will be displayed. Horizontal System (Time Base) As well as time base settings, the horizontal system comprises the selection of the trigger position, the zoom functions and the available modes of signal capture. The knobs are used for the adjustment of the time base speed and the trigger position. The signal capture modes are selected in the respective menus. There is a key provided for activating the zoom function.
Horizontal System of a curve may be marked. By pressing one of the arrow buttons the next marker left or right of the center will be shifted to the center. In order to erase a marker, shift it to the center and press the key SET/CLR anew. After pressing the key „MENU“ in the HORIZONTAL area of the front panel all markers can be erased by pressing the respective soft menu key.
Trigger System 6 Trigger System The trigger system of the HMO is easy to handle by just observing the HAMEG concept of instrument operation. Fig. 6.1: Front panel control area of the trigger system C 28 29 33 30 34 31 35 32 36 There are 4 keys destined for frequently used functions: – TYPE: selects the type of trigger: SLOPE, PULSE, LOGIC, VIDEO and the B-TRIGGER. – SLOPE: selects the slope polarity. – SOURCE: opens the menu for the selection of the trigger source.
Trigger System you to adjust the trigger such that first condition „A“ must be met and then another condition „B“ before the trigger will respond (refer to Fig. 6.3). E.g. it is possible to define a source (channel) and a level of 120 mV on the rising slope of that signal and for the second condition a level of 80 mV on the falling slope. Additionally, it is possible to define whether the B event should occur a time (min. 8 ns) or a number (min. 1) of times after the A event.
trigger System 7 Display of signals channels D0 to D15, the math functions and the references. The analog channels can only use up to ±5 divisions from the center. The following chapter describes the selection and display of signals from various sources and the available display modes. 7.1 Display settings The HMO features a high quality TFT – VGA (640 x 480 pixel resolution) display with LED backlighting.
Trigger System all backlit keys and all other LED displays on the front panel. After selecting the menu items PERSISTENCE and ADJUST the persistence function can be defined: there are 3 choices for the duration of the persistence: OFF, AUTOMATIC and MANUAL. In MANUAL operation, the duration can be changed with the universal knob from 50 ms to infinity. 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.
Measurements 8 Measurements There are two different kinds of measurements on signals: cursor 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 oscilloscope is the cursor measurement.
Measurements PEAK-TO-PEAK In this mode the voltage difference between the minimum and maximum values of the displayed signal will be measured. PEAK + In this mode the positive peak value of the displayed signal will be measured. PEAK – In this mode the negative peak value of the displayed signal will be measured. PERIOD In this mode the duration of the signal period will be measured. The period is defined as the time between two identical portions of a recurring signal. Fig. 8.
Analysis 9 Analysis The HMO series oscilloscopes feature a variety of analysis functions for the stored data sets which will be displayed on the screen. For simple mathematical functions „Quick mathematics“ is provided. The formula editor allows you to create more complex functions and the linking of functions. The frequency analysis is accessible by just pushing a key. 9.1 Quick mathematics Pushing the MATH key on the front panel will call a short menu, the key will light up red.
Analysis After entering the value, the prefix, the unit (or any combination) push the soft menu key next to STORE: now this will be stored at the address USER 1, then the system will automatically return to the menu for equations. It is possible to store up to 10 user defined constants. Fig. 9.4: Entering constants and units word will be shown with a blue background). In this menu you have the opportunity to display the equations, to add physical units (e.g. A) and to attribute names. In Fig. 9.
Analysis grids and the information about the FFT display (span and center frequency) is shown below the larger area. One of these displays is brighter than the other, after selecting the FFT function this one will be brighter. The large knob in the time base area will set the span, and the small knob X-POSITION the center frequency. By pushing the large knob SCALE TIME/DIV, the display of the time base settings will become brighter, and both knobs will resume their original time base functions.
Documentation, storing and recalling Pressing the MENU OFF key will cause return to the main menu. The test will be started if the soft menu key TEST is pressed. Below the display window the total number of tests and, in brackets, the total test time are shown in white. The number of successful tests and, in brackets, their percentage are shown in green. The number of failures and, in brackets, their percentage are shown in red.
Documentation, storing and recalling to STORE. In order to recall stored instrument settings, call the main instrument settings menu and select lOAD by pushing the respective soft menu key. The data manager will open, use the menu keys and the universal knob for navigating. Fig. 10.3: Recalling instrument settings Here the location is selected from which the settings data are to be loaded. After the selection in the data manager, load the settings by pushing the soft menu key lOAD.
Documentation, storing and recalling The following formats are available: Binary format: A binary data set may contain bytes of any length. The curves will be stored without any time information. CSV (Comma Separated Values): CSV data sets store the curves in tables, the lines are separated by commas. 10.4 Screenshots The most important method of storing for documentation purposes is the screen photo.
Documentation, storing and recalling However, it is required that the necessary settings for the destination, the name etc. have been previously defined as described in the preceding chapters. In order to open the settings menu of the FILE/PRINT key, push the SAVE/RECALL key for calling its main menu, then select the menu item FIlE/PRINT.
Mixed Signal Operation SOURCE menu). A time limit can be added by pushing the top soft menu key. The reference criterion can be selected in the menu field below by the respective soft key. These 6 criteria are available: ti ≠ t: The duration of the bit pattern which will generate the trigger is unequal to the reference time. ti = t: The duration of the bit pattern which will generate the trigger is equal to the reference time.
Mixed Signal Operation BIT and NEXT BIT, then use the universal knob for the linking to the logic channel. If you chose the bus type PARALLEL + CLOCK, the lower two soft menu keys are reserved for the source and the slope of the clock. For selecting the source of the clock, press the key CLOCK and use the universal knob for selecting the logic channel which carries the clock. The key SLOPE will offer RISING, FALLING and BOTH in that order and start all over.
Serial bus analysis The soft menu key CONFIGURATION will call a menu which is dependent upon the bus type selected. These menus are described in the chapters of the respective bus configurations. The menu called by pressing DISPLAY SETUP is the same for all buses, it allows to select the decoding format.
Serial bus analysis Pressing the soft menu key DATA will open a submenu which allows to enter data in addition to the address. Fig. 12.7: Menu for the SPI bus definition Fig. 12.6: I2C data Trigger menu It is possible to trigger on a maximum of 24 bits (3 bytes) of data which may have an offset from 0 to 4095 with respect to the address. In order to select an offset, press BYTE OFFSET. In most cases the offset will be zero if it is desired to trigger on the maximum of 24 first bits following the address.
Serial bus analysis BIT and use the universal knob for the selection of the desired bit number. Further trigger possibilities will become available after pressing the soft menu key SER. PATTERN, a menu will open which allows to provide for a bit offset which may exist (values from 0 to 4095 are possible). It also permits to define the number of bits per message (values from 1 to 32 bits are possible) and to set each of the bits defined. Fig. 12.10: Page 1 of the UART bus definition menu.
Serial bus analysis Fig. 12.12: UART data trigger menu to be used can be defined with the menu item NUMBER OF SYMBOLS as 1,2 or 3. (The length of the symbols 5 to 9 bits was already set when defining the bus, it is automatically taken into account here). Select the menu item PATTERN INPUT for the entry of the values of the symbols which may again be in binary or hexadecimal format. If binary input is selected, the individual bits can be selected with the soft menu key SELECT BIT and the universal knob.
Appendix 13 Appendix List of figures Positions of the instrument Type of fuse Fig. 2.1: Fig. 2.2: Fig. 2.3: Fig. 2.4: Fig. 2.5: Fig. 2.6: Fig. 2.7: Fig. 2.8: Fig. 2.9: Fig. 2.10: Fig: 2.11: Fig. 2.12 Fig. 2.13 Fig. 3.1: Fig. 3.2: Fig. 3.3: Fig. 3.4: Fig. 3.5: Fig. 3.6: Fig. 3.7: Fig. 3.8: Fig. 3.9: Fig. 3.10: Fig. 3.11: Fig. 3.12: Fig. 3.13: Fig. 3.14: Fig. 3.15: Fig. 4.1: Fig. 4.2: Fig. 4.
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