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HDO4000 High Definition Oscilloscope

Rectangular windows provide the highest frequency resolution and are thus useful for estimating the type
of harmonics present in the signal. Because the rectangular window decays as a (sinx)/x function in the
spectral domain, slight attenuation will be induced. Alternative functions with less attenuation (Flat Top
and Blackman-Harris) provide maximum amplitude at the expense of frequency resolution. Whereas,
Hamming and Von Hann are good for general purpose use with continuous waveforms.

Window Type

Applications and Limitations

Rectangular

These are normally used when the signal is transient (completely contained in the time-
domain window) or known to have a fundamental frequency component that is an integer
multiple of the fundamental frequency of the window. Signals other than these types will
show varying amounts of spectral leakage and scallop loss, which can be corrected by
selecting another type of window.

Hanning (Von Hann)

These reduce leakage and improve amplitude accuracy. However, frequency resolution is
also reduced.

Hamming

These reduce leakage and improve amplitude accuracy. However, frequency resolution is
also reduced.

Flat Top

This window provides excellent amplitude accuracy with moderate reduction of leakage,
but with reduced frequency resolution.

Blackman-Harris

It reduces the leakage to a minimum, but with reduced frequency resolution.

FFT Window Filter Parameters

Window Type

Highest
Side
Lobe
(dB)

Scallop Loss (dB)

ENBW (bins)

Coherent Gain (dB)

Rectangular

-13

3.92

1.0

0.0

Von Hann

-32

1.42

1.5

-6.02

Hamming

-43

1.78

1.37

-5.35

Flat Top

-44

0.01

3.43

-11.05

Blackman-Harris

-67

1.13

1.71

-7.53

68

922498 Rev B

www.

.com

[email protected]

1.800.561.8187

Содержание HDO4000

Страница 1: ...Operator s Manual HDO4000 High Definition Oscilloscopes www com information itm com 1 800 561 8187 ...

Страница 2: ...1 Descriptor Boxes 12 Dialogs 14 Shortcut Toolbar 14 Control Application Window 14 Enter Select Data 15 Annotate Traces 17 Print Screen 18 Screen Saver 18 Front Panel 19 Front Panel Trigger Controls 20 Front Panel Horizontal Controls 20 Front Panel Vertical Controls 21 Front Panel Math Zoom and Mem ory Buttons 21 Front Panel Cursor Controls 21 Front Panel Adjust and Intensity Controls 21 Miscellan...

Страница 3: ...ings 34 Sampling Modes 35 Set Reference Clock 38 Auto Setup 38 Restore Default Setup 38 Trigger 39 Trigger Modes 39 Trigger Types 40 Trigger Settings 41 Trigger Holdoff 42 Display 44 Display Setup 44 XY Displays 45 Persistence Overview 45 Cursors 48 Cursor Types 48 Cursor Settings 49 Measure 50 Measure Gate 50 Level 50 Set Up Measurement 50 List of Standard Parameters 51 Quick Measurements 53 View...

Страница 4: ...ies 85 Preferences Settings 86 Calibration Settings 87 Acquisition Settings 88 Color Settings 89 E Mail 89 Miscellaneous Settings 90 Save Recall Overview 91 Save Recall Setups 91 Save Recall Waveforms 92 Save Table Data 95 LabNotebook 96 Create Notebook Entry 96 LabNotebook Drawing Toolbar 97 Manage Notebook Entries 98 Manage Notebooks 100 Flashback Recall 101 Customize Report 101 Configure LabNot...

Страница 5: ...107 Returning a Product for Service 108 Contact Teledyne LeCroy 109 Certifications 110 EMC Compliance 110 Safety Compliance 111 Environmental Compliance 112 ISO Certification 112 Warranty 112 Windows License Agreement 113 iv 922498 Rev B www com information itm com 1 800 561 8187 ...

Страница 6: ...tions is available from the Teledyne LeCroy website at teledynelecroy com Our website maintains the most current product specifications and should be checked for frequent updates Remember When your product is delivered verify that all items on the packing list or invoice copy have been shipped to you Contact your nearest Teledyne LeCroy customer service center or national distributor if anything i...

Страница 7: ...HDO4000 High Definition Oscilloscope vi 922498 Rev B www com information itm com 1 800 561 8187 ...

Страница 8: ...ough the power cord grounding conductor To avoid electric shock connect only to a grounded mating outlet Connect and disconnect properly Do not connect disconnect probes or test leads while they are connected to a voltage source Observe all terminal ratings Do not apply a voltage to any input C1 C2 C3 C4 or EXT that exceeds the maximum rating of that input Refer to the front of the oscilloscope fo...

Страница 9: ...ormed automatically after start up Power AC Power The instrument operates from a single phase 100 to 240 Vrms 10 AC power source at 50 60 400 Hz 10 Manual voltage selection is not required because the instrument automatically adapts to the line voltage Power Consumption Maximum power consumption with all accessories installed e g active probes USB peripherals digital leadset is 300 W 300 VA for fo...

Страница 10: ...e LeCroy customer service center or national distributor if anything is missing or damaged We can only be responsible for replacement if you contact us immediately Carrying and Placing the Oscilloscope The oscilloscope s case contains a built in carrying handle Lift the handle away from the oscilloscope body grasp firmly and lift the instrument Always unplug the instrument from the power source be...

Страница 11: ...e provided later in this manual POWER Connect the line cord rated for your country to the AC power inlet on the back of the instrument then plug it into a grounded AC power outlet See Power and Ground Connections in General Safety Information LAN Connect a cable from either Ethernet port on the side panel to a network access device On the oscilloscope use the standard Windows Network dialog to con...

Страница 12: ...ration CAUTION Do not change the instrument s Windows Power Options setting from the default Never to System Standby or System Hibernate Doing so can cause the system to fail CAUTION Do not power on or calibrate the oscilloscope with a signal attached Always use the File Shutdown menu option to execute a proper shut down process and preserve settings before powering down Pressing and holding the S...

Страница 13: ... and install the software Trial Options HDO4000 oscilloscopes are delivered with 30 day trial licenses of some available software option packages To activate a trial package 1 Go to Utililties Utilities Setup Options 2 Select a key from the Installed Option Keys list 3 Touch the Activate Demo Key button at the right of the screen A reminder will appear whenever you reboot the oscilloscope without ...

Страница 14: ...compensate passive probes E Two 2 front mounted host USB ports can be used for transferring data or connecting peripherals such as a mouse or keyboard Side Input Output Panel A Video Output VGA DVI and HDMI ports connect the oscilloscope to external monitors B USB Ports 4 allow you to connect external USB devices such as storage drives C Ethernet Ports 2 connect the oscilloscope to networks D Audi...

Страница 15: ...ive probes high impedance active probes current probes high voltage probes and differential probes ProBus also includes sense rings for detecting passive probes The ProBus interface may also have a BNC terminated cable connected directly to it The interfaces power probes and completely integrate the probe with the oscilloscope channel Upon connection the probe type is recognized and some setup inf...

Страница 16: ...he oscilloscope push the connector into the mixed signal interface below the front panel until you hear a click To remove the leadset press in and hold the buttons on each side of the connector then pull out to release it Grounding Leads Each flying lead has a signal and a ground connection A variety of ground extenders and flying ground leads are available for different probing needs In order to ...

Страница 17: ...ouch screen is divided into the following major control groups Menu Bar The top of the screen contains a complete menu of oscilloscope functions Making a selection here changes the dialogs displayed at the bottom of the screen Many common oscilloscope operations can also be performed from the Front Panel or launched via the Descriptor Boxes However the menu bar is the best way to access dialogs fo...

Страница 18: ... brightness of the grid lines to make either the grid or traces more visible Go to Display Display Setup and enter a new Grid Intensity percentage The higher the number the brighter and bolder the grid lines Grid Indicators These indicators appear over the grid to mark important points on the display They are matched to the color of the trace to which they apply Trigger Position A small triangle a...

Страница 19: ...ce an annotation label on it Descriptor Boxes Shown just beneath the grid display these boxes provide a summary of your channel timebase and trigger settings They also act as convenient navigation tools Descriptor boxes appear when a trace is turned on Touch the descriptor box once to activate the corresponding trace Touch the descriptor box a second time to open its corresponding setup dialog Whe...

Страница 20: ...l descriptors they are numbered 1 4 corresponding to one of the four line groups They show the number of digital lines in the group the digital sample rate and the digital memory Timebase Descriptor Box The TimeBase descriptor box shows clockwise from top right Trigger Delay position Time div Sample Rate Number of Samples and Sampling Mode blank when in real time mode Trigger Descriptor Box Trigge...

Страница 21: ...serial data decoders can be configured and applied Store Loads the active trace into the corresponding memory location C1 F1 and Z1 to M1 C2 F2 and Z2 to M2 etc Find Scale Automatically performs a vertical scaling that fits the waveform into the grid Label Opens the Label pop up to annotate the active trace Control Application Window The oscilloscope applications runs on a Windows Embedded Standar...

Страница 22: ...n the active field Or you can touch again then select your entry from the pop up menu or keypad You ll see a pop up keypad when you double touch a numerical data entry field Touch the soft keys to use it exactly as you would a calculator When you touch OK the calculated value is entered in the field Touch Drag Touch and drag waveforms cursors and trigger indicators to reposition them on the grid t...

Страница 23: ...ou can also use scroll bars or Up Down arrow keys to navigate to the desired value Stylus Use the stylus when you want a more precise selection tool than your finger It is especially helpful for selecting exact areas of the grid or values that lie close together on pop up menus 16 922498 Rev B www com information itm com 1 800 561 8187 ...

Страница 24: ... 4 Optionally enter the Horizontal Pos and Vertical Pos at which to place the label The default position is 0 ns horizontal You can optionally check Use Trace Vertical Position instead of entering a Vertical Pos 5 Close the dialog Edit Remove Label 1 Touch the label and choose Set Label from the pop up menu 2 Select the Label number You can use the Up Down arrow keys to scroll the list 3 Change th...

Страница 25: ...button to the far right of the dialog NOTE The Front Panel Print button can be configured to capture the screen as a LabNotebook entry In this case only the File and Utilities menu print options will function according to your Hardcopy setup Screen Saver The screen saver is activated the same as on any Windows PC Minimize the instrument display by choosing File Minimize from the menu bar Then open...

Страница 26: ...s Other shortcut buttons arranged across the bottom open special applications All the knobs on the Front Panel function one way if turned and another if pushed like a button The top label describes the knob s principal turn action and the bottom label describes its push action Front panel buttons light up to indicate which traces and functions are active Actions performed from the Front Panel alwa...

Страница 27: ...rigger conditions set for the type of trigger selected If the scope is already armed it will force a trigger Stop Prevents the scope from triggering on a signal If you boot up the instrument with the trigger in Stop mode a No trace available message is shown Press the Auto button to display a trace Front Panel Horizontal Controls The Horizontal Front Panel group corresponds to the Timebase dialog ...

Страница 28: ...oltage and time values on the waveform The white cursor lines help make these points more visible as well as provide a simple way to reposition them A readout of the values appears on the trace descriptor box There are five preset cursor types each with a unique appearance on the display Horizontal Time Horizontal Vertical Vertical Amplitude Horizontal Frequency and Horizontal Event These are desc...

Страница 29: ...lloscope to the factory default configuration Print Captures the entire screen and outputs it according to your Hardcopy settings It can also be configured to output a LabNotebook entry Touch Screen Enables or disables touch screen functionality Clear Sweeps Resets the acquisition counter and any cumulative measurements Bottom Row Decode Opens the Serial Decode dialog if you have serial data decod...

Страница 30: ... math traces without leaving the setup dialogs by touching the Zoom or Math shortcut button at the bottom of the dialog You can also use the Front Panel Zoom Math or Mem ory buttons to quickly create traces Activate Trace A trace descriptor box appears on the display for each enabled channel digital zoom math or memory trace Touch this box at any time to activate the trace and open its setup dialo...

Страница 31: ...th of the grid The degree of vertical and horizontal magnification therefore depends on the size of the rectangle that you draw The zoom opens in a new grid with the zoomed portion of the source trace highlighted If you are using the Single Grid display option zooms will open in the same grid as the source trace Zoomed area of original trace highlighted New zooms are turned on and visible by defau...

Страница 32: ...iptor box until the pop up menu opens then choose Off Quick Zoom Use the Front Panel Zoom button to quickly create one zoom trace for each displayed channel trace NOTE Quick zooms are created at the same vertical scale as the source trace and 10x horizontal magnification To turn off the quick zooms press the Zoom button again Zoom Controls Once the zoom trace has been created adjust its Vertical a...

Страница 33: ...achieved the desired level of zoom Var checkbox enables variable zooming in increments finer than the default 1 2 5 10 step increments When checked each touch of the zoom control buttons changes the degree of magnification by a single increment Horizontal Scale div sets the amount of time represented by each horizontal division of the grid It is the equivalent of Time div only unlike the Timebase ...

Страница 34: ...log or on one of the trace setup dialogs This applies to any trace that is created as a math function Fx trace including those that are generated through analysis options You can however create a separate zoom trace from a memory or function trace by drawing a selection box around a portion of the waveform In this case you choose one of the zoom locations in which to draw the trace Z1 Z4 but the s...

Страница 35: ...ontains a tab for the Probe dialog Vertical Settings Vertical Scale Set the vertical scale or sensitivity and choose fixed or variable gain adjustment Vertical Offset Select between zero vertical offset or to set the offset to a specific value Coupling Select from DC 50 Ω DC1M AC1M and GROUND CAUTION The maximum input voltage depends on the input used Limits are displayed on the front of the oscil...

Страница 36: ...mple rate is 3 to 5 times the system bandwidth Noise Filter ERes Enhanced Resolution ERes filtering increases vertical resolution allowing you to distinguish closely spaced voltage levels The tradeoff is reduced bandwidth The functioning of the instrument s ERes is similar to smoothing the signal with a simple moving average filter Use ERes on single shot waveforms or where the data record is slow...

Страница 37: ...to compensate for propagation delays due to different lengths of cables probes or anything else that might cause timing mismatches between signals 1 Connect all probes to the desired channels then probe a common signal with each probe 2 Turn on two channels one of which will be the reference channel for the entire deskew procedure 3 Set an Edge trigger on the reference channel 4 Switch to Display ...

Страница 38: ... physical lead they represent although any line number can be re assigned to any lead Digital Traces When a digital group is enabled digital Line traces show which lines are high low or transitioning relative to the threshold You can also view a digital Bus trace that collapses all the lines in a group into their Hex values Three Digital Line traces and a Bus trace displayed with a Vertical Positi...

Страница 39: ...Go on to set up the digital display for the group Check Group to enable the display 5 When you re finished on the Digital dialog touch the Logic Setup tab and choose the Logic Family that applies to each digital bank or set custom Threshhold and Hysteresis values Digital Display Set Up You can choose the type and position of the digital traces that appear on screen for each digital group 1 Set up ...

Страница 40: ...so labels can be swapped between lines Changing Labels 1 Set up the digital group 2 Touch Label and select from l Data the default which appends D to the front of each line number l Address appends A to the front of each line number l Custom lets you create your own labels line by line 3 If using Custom labels l Touch the Line number button below the corresponding checkbox If necessary use the Lef...

Страница 41: ...ent to display on the grid In Real Time sampling mode the trigger event is placed at time zero on the grid Delay may be time pre trigger entered as a negative value or post trigger entered as a positive value Raising lowering the Delay value has the effect of shifting the trace to the right left enabling you to focus on the relevant portion of longer acquisitions Set to Zero returns Delay to zero ...

Страница 42: ...00 time divisions after the trigger event occurred When set to the maximum allowed post trigger delay the trigger point may actually be off the grid far to the left of the time displayed Usually on fast timebase settings the maximum sample rate is used when in Real Time mode For slower timebase settings the sample rate is decreased so that the maximum number of data samples is maintained over time...

Страница 43: ...uence Sampling Mode In Sequence Mode the complete waveform consists of a number of fixed size segments see the instrument specifications at teledynelecroy com for the limits The oscilloscope uses the sequence timebase setting to determine the capture duration of each segment as 10 x time div With this setting the oscilloscope uses the desired number of segments maximum segment length and total ava...

Страница 44: ...d you can interrupt it at any time by pressing the Stop Front Panel button In this case the segments already acquired will be retained in memory VIEW SEGMENTS IN SEQUENCE MODE When in Sequence Mode you can view individual segments easily using the Zoom dialog The Zoom trace defaults to Segment 1 You can move to later segments by changing the values in First segment to display and Num ber of segmen...

Страница 45: ...rches Channel 2 and so forth until it finds a signal Vertical Scale V div Offset Timebase Time div and Trigger are set so that there is an Edge trigger on the first non zero level amplitude and the entire waveform is visible for at least 10 cycles over the 10 horizontal divisions To run Auto Setup you can either l Press the Auto Setup Front Panel button l Choose Auto Setup from the Vertical Timeba...

Страница 46: ...m false to true occurs on selected input channel and external input l SMART Triggers sophisticated triggers that enable you to use basic or complex conditions for trig gering Use SMART Triggers for signals with rare features like glitches In addition to the trigger type the trigger mode determines how the oscilloscope behaves in the presence or absence of a trigger event Trigger Modes The trigger ...

Страница 47: ... and D0 D15 You have a choice of four Boolean operators AND NAND OR NOR and can stipulate the high or low voltage logic level for each input independently NOTE Only the AND Boolean operator is available when combining analog and digital inputs TV triggers on standard PAL SECAM NTSC HDTV or custom composite video signals Smart Triggers Interval triggers upon finding a specific interval the time per...

Страница 48: ...ing the type of signal coupling at the input Choices are l DC All the signal s frequency components are coupled to the trigger circuit for high frequency bursts or where the use of AC coupling would shift the effective trigger level l AC The signal is capacitively coupled DC levels are rejected and frequencies below 50 Hz are attenuated l LFREJ The signal is coupled through a capacitive high pass ...

Страница 49: ...me would otherwise be limited only by the input signal the coupling and the instrument s bandwidth Select a positive or negative slope and a minimum time between triggers In the figure below the bold edges on the trigger source indicate that a positive slope has been selected The broken upward pointing arrows indicate potential triggers which would occur if other conditions are met The bold arrows...

Страница 50: ...h the Holdoff tab Holdoff by type of holdoff to use with trigger None Time clock or Event Time if using Holdoff by Time the time in S to wait before triggering Events if using Holdoff by Events the number of events to count before triggering Starts Holdoff Counter On whether to count holdoff time events from Acquisition Start or Last Trigger Time before triggering again 922498 Rev B 43 www com inf...

Страница 51: ...round grid lines touch Grid Intensity and provide a value from 0 to 100 4 Optionally check Grid on top to superimpose the grid over the waveform NOTE Depending on the grid intensity some of your waveforms may be hidden from view when the grid is placed on top To view them simply uncheck Grid on top 5 Optionally check Axis labels to display the values of the top and bottom grid lines calculated fro...

Страница 52: ...math function or memory location M1 to M4 Persistence Mode The Persistence display is generated by repeated sampling of the amplitudes of events over time and the accumulation of the sampled data into display maps These maps create an analog style display Statistical integrity is preserved because the duration decay is proportional to the persistence population for each amplitude or time combinati...

Страница 53: ... above the saturation population are then assigned the highest color intensity that is they are saturated At the same time all populations below the saturation level are assigned the remaining intensities Data populations are dynamically updated as data from new acquisitions is accumulated A saturation level of 100 spreads the intensity variation across the entire distribution at lower saturation ...

Страница 54: ...the persistence mode None Color or Analog If you re doing individual setup repeat the mode selection for each channel then go to that channel s tab and make the remaining settings 4 Optionally check Show last trace to superimpose the channel trace over the persistence display 5 Optionally also change Saturation level and Persistence Time and enable disable Dot Joined TURN OFF PERSISTENCE To turn o...

Страница 55: ...vertical line The readout shows the absolute value at the cursor location l Horizontal Rel displays two dashed vertical lines The readout depends on the Show option selected Vertical Amplitude cursors place horizontal lines through a point on the vertical axis to read the amplitude of the signal at that point The two types are l Vertical Abs displays a single dashed horizontal line The readout sho...

Страница 56: ...osition Standard Cursors Dialog These controls can be used in lieu of the Front Panel controls to set cursors Access the dialog by choosing Cursors Cursors Setup from the menu bar Cursor Type buttons select the type of cursor displayed on the grid Off disables the cursor display The Position controls at the right side of the Standard Cursors dialog display the current cursor location and can be us...

Страница 57: ...ate posts located at the far left and right of the grid to the desired positions You can refine this setting by specifying a position down to hundredths of a division in the Gate Start and Stop fields on the main Measure dialog dialog All parameters share the same gate Touch the Default button to return gates to the width of the trace Level All Level parameters are measured at the same level Level...

Страница 58: ...s are counted Duty Cycle Percent of period for which data are above or below the 50 level of the signal Duty level duty lv Percent of period for which data are above or below a specified level Edge level edge lv Number of positive edges in waveform that cross the specified threshold level Fall 80 20 fall8020 Duration of pulse waveform s falling transition from 80 to 20 of the amplitude averaged fo...

Страница 59: ...e Duration of pulse waveform s rising transition from 10 to 90 of the amplitude averaged for all rising transitions between the measurement gates On signals not having two major levels triangle or saw tooth waves for example top and base can default to maximum and minimum giving less predictable results Rise 20 80 rise2080 Duration of pulse waveform s rising transition from 20 to 80 of the amplitu...

Страница 60: ...ens the Measure dialog To quickly access the Measure Setup dialog if it is closed touch the far left cell of the readout table labeled Measure View Statistics You can add the statistical measures value last mean min max sdev and num ber of measurements computed to the measurement parameter readout table To turn on statistics access the Measure dialog and check Statistics On Clear the checkbox to r...

Страница 61: ...ts are those of the source parameter the horizontal unit is measurement number The trend contains a single value for each measurement Although the trend plots measurement values the plot is drawn as a math function and controlled through the Math dialog 1 If you re not already on the Measure dialog choose Measure Measure Setup 2 Touch the Trend buttonnext to the parameter you wish to plot and choo...

Страница 62: ...hen the most probable state centroids associated with these two clusters will be computed to determine the top and base reference levels the top line corresponds to the top and the base line to the bottom centroid Determining Rise and Fall Times Once top and base are estimated calculation of the rise and fall times is easily done see figure The appropriate threshold levels are automatically determ...

Страница 63: ...measurements such as width period and delay are carried out with respect to the mesial reference level located halfway 50 between the top and base reference lines or with respect to the specified level for level parameters 56 922498 Rev B www com information itm com 1 800 561 8187 ...

Страница 64: ...accessed through the oscilloscope Analysis menu rather than the Math menu although special measure parameters and math functions will be available when using Measure and Math dialogs Single vs Dual Operation Functions Single functions perform one operation on one or two input sources Dual functions chain two operations to arrive at a single result This saves you the effort of having to chain two s...

Страница 65: ... 4 Choose math Operator1 to perform 5 The choice of operator drives the number of Source fields you will see displayed Make a selection in each field A Summary of the function you are building appears on the dialog Refer to this to be sure your sources are in the proper order to yield the function you want e g C1 C2 vs C2 C1 6 If the operator you ve selected has any other configurable settings you...

Страница 66: ...egard to its sign is used Average Calculates either a summed or continuous average of a selected number of sweeps See Averaging Waveforms The maximum number of sweeps is determined by the oscilloscope model and memory See the specifications at teledynelecroy com Derivative Calculates the derivative of adjacent samples using the formula next sample value current sample value horizontal sample inter...

Страница 67: ...procal For every point in the waveform the inverse is calculated using the formula 1 sample value Rescale For every point in the waveform the sample value is multiplied by the specified multiplier and then add to with the specified adder See Rescaling and Assigning Units Roof Calculates the highest vertical values of a waveform at each horizontal value for a specified number of sweeps Square For e...

Страница 68: ...and enter a value for a the multiplication factor l Touch then add and enter a value for b the additive constant 4 To change the output unit of measure from that of the source waveform l Check Override units l In Output enter the abbreviation for the unit the measure you wish to use You can also enter combinations of the unit abbreviations following these rules l For the quotient of two units use ...

Страница 69: ...RAD Radian DBV Decibel Volts DEG Degree of arc DBUZ Decibel Microamp MNT Minute of arc DEC Decade SAMPLE Sample DIV Divisions SWEEP Sweeps Event Events SEC Second of arc F Farad S Second G Gram SIE Siemens H Henry T Tesla HZ Hertz UI Unit interval J Joule V Volt K Degree Kelvin VA Volt amps CEL Degree Celsius W Watt FAR Degree Fahrenheit WB Weber L Liter MIN Min M Meter HOUR Hour FT Foot DAY Day I...

Страница 70: ...ch bits and make a selection from the pop up menu How the Instrument Enhances Resolution The instrument s enhanced resolution feature improves vertical resolution by a fixed amount for each filter This real increase in resolution occurs whether or not the signal is noisy or your signal is single shot or repetitive The signal to noise ratio SNR improvement you gain is dependent on the form of the n...

Страница 71: ... the filtered waveform The filters have been given exact unity gain at low frequency Enhanced resolution should therefore not cause overflow if the source data is not overflowed If part of the source trace were to overflow filtering would be allowed but the results in the vicinity of the overflowed data the filter impulse response length would be incorrect This is because in some circumstances an ...

Страница 72: ...noise component lower than that of a single shot record Whenever the maximum number of sweeps is reached the averaging process stops In Summed averaging you specify the number of acquisitions to be averaged The averaged data is updated at regular intervals and presented on the screen An even larger number of records can be accumulated simply by changing the number in the dialog However the other p...

Страница 73: ...new average new data 1 old average 1 1 1 2 new data 1 2 old average 3rd sweep new average new data 2 old average 2 1 1 3 new data 2 3 old average 4th sweep new average new data 3 old average 3 1 1 4 new data 3 4 old average 5th sweep new average new data 4 old average 4 1 1 5 new data 4 5 old average 6th sweep new average new data 4 old average 4 1 1 5 new data 4 5 old average 7th sweep new averag...

Страница 74: ...ctive sampling rate of the oscilloscope and therefore determines the frequency resolution and span at which spectral analysis can be carried out Set Up FFT 1 Follow the usual steps to set up a math function selecting FFT from the Frequency Analysis submenu 2 Open the FFT right hand dialog 3 Check the Suppress DC box to make the DC bin go to zero Otherwise leave it unchecked 4 Choose an Output type...

Страница 75: ...tiple of the fundamental frequency of the window Signals other than these types will show varying amounts of spectral leakage and scallop loss which can be corrected by selecting another type of window Hanning Von Hann These reduce leakage and improve amplitude accuracy However frequency resolution is also reduced Hamming These reduce leakage and improve amplitude accuracy However frequency resolu...

Страница 76: ...o the data to find particular events l Pass Fail Testing finds normal abnormal measurements as indicated by whether or not they meet a set of defined criteria l WaveScan searches a single acquisition for events that meet specific criteria enabling you to zoom in on anomalies in the waveform or scans multiple acquisitions with allowable trigger actions when conditions are met It can also be used to...

Страница 77: ...matching events across multiple acquisitions Customize the presentation by choosing different WaveScan display features or Scan Views Optionally set Actions to occur automatically when unusual events are found such as stopping the acquisition or sounding an alarm NOTE Whenever WaveScan is enabled the instrument reverts to Real time sampling mode WaveScan window with all scan views turned on Scan M...

Страница 78: ...ou selected l Levels are choose Percent Absolute or Pk Pk l High Level and Low Level Enter the top and bottom thresholds in the units you selected RUNT MODE Runt Mode looks for pulses that fail to cross a specified threshhold You can search for positive going or negative going runts or both An adjustable hysteresis band is provided to eliminate noise In the case of negative going runt pulses the v...

Страница 79: ...ly or visit them sequentially Just check the boxes at the bottom of the WaveScan dialog for those views you wish to display Uncheck the box to turn off the view You ll find additional controls for manipulating Zooms on the Zoom dialog If you turn on the Zoom trace from its setup dialog you must turn it off from there too SOURCE TRACE By default the source trace is displayed in the top grid with ma...

Страница 80: ...lected is displayed simultaneously 8 Optionally choose an Action to trigger when an event that meets your scan criteria is found 9 Restart acquisition Pass Fail Testing Pass Fail testing is a type of mask testing that is particularly useful for comparing newly acquired signals to a previously acquired golden standard waveform A mask defines an area of the grid against which a source Channel Zoom o...

Страница 81: ...3 Touch the Ver Delta and Hor Delta fields and enter boundary values using the pop up numeric keypad or the Front Panel Adjust knob 4 Touch Make from Trace Load Mask Use this procedure in lieu of Make Mask if you have a pre defined mask file or wish to recall a mask you previously created and saved 1 Touch the Load Mask tab to display the dialog 2 To use a saved msk file touch File and select the ...

Страница 82: ...t Tip A quick way to position the gate is to touch the gate posts which initially are placed at the extreme left and right ends of the grid and drag them to the desired points Define Test 1 Touch the Test tab to display the dialog 2 Select one of the conditions that when True yes result in a Pass 3 Optionally turn Off On markers Markers visually indicate where on the waveform mask violations have ...

Страница 83: ...button or choose Timebase History Mode 2 Select View History to enable the history display and View Table to display the index of records Optionally select to view Relative Times on the table 3 Choose a single acquisition to view by entering its Index number on the dialog or selecting it from the table of acquisitions You can also use the Navigation buttons or the slider bar at the bottom of the d...

Страница 84: ...how all existing acquisition trigger channel math function measurement and parameter configurations as well as which are currently active Access the Status dialogs by choosing the Status option from the Vertical Timebase Math or Analysis menus e g Channel Status Acquisition Status 922498 Rev B 77 www com information itm com 1 800 561 8187 ...

Страница 85: ...havior of the oscilloscope s Print function The selected print output device or application is displayed to the right of the HardCopy Setup button for convenience Show Windows Desktop minimizes the oscilloscope application window Maximize the application by touching the oscilloscope display icon located at the lower right of the desktop Touch Screen Calibration launches a sequence of display calib...

Страница 86: ...rol of the instrument Supported communication protocols are l TCPIP Ethernet Enables remote control across a LAN via an Ethernet port If you choose this option you also need to install Teledyne LeCroy s VICP drivers on the controller These are included in the VICP Passport plug in available free from teledynelecroy com NOTE The instrument uses Dynamic Host Configuration Protocol DHCP as its addres...

Страница 87: ...nt monitors communication between the controller and oscilloscope when you are operating the instrument remotely You can log all events or errors only The log can be output to an ASCII file and is invaluable when you are creating and debugging remote control programs 1 From the menu bar choose Utilities Utilities Setup then touch the Remote tab 2 Under Remote Control Assistant touch Log Mode and c...

Страница 88: ...e output to a printer ADD PRINTER NOTE Any printer compatible with Microsoft Windows Embedded Standard 7P operating system is supported by your instrument Install printer drivers on the instrument outside of the oscilloscope application Printers can be connected via LAN Ethernet or USB 1 From the menu bar choose File Print Setup or Utilities Utilities Setup HardCopy 2 On the Utilities Hardcopy dia...

Страница 89: ... oscilloscope functions such as masks and scripts have their own XStream subfolders 6 Optionally choose a color scheme and hardcopy print area Copy to Clipboard Follow this procedure to copy screen captures to the clipboard so you can paste them into another application like Microsoft Word for example 1 Choose Utilities Utilities Setup then touch the Hardcopy tab 2 On the Hardcopy dialog choose Cl...

Страница 90: ...ints only the grids l DSO Window prints the dialogs with the grids l Full Screen prints the entire touch screen Auxiliary Output Settings Use the Aux Output dialog to configure the output of the Aux Out and Cal Out ports Configure Auxiliary Output Choose one of the following under Use Auxiliary Output For Trigger Enabled can be used as a gating function to trigger another instrument when the oscil...

Страница 91: ...ot the same as the Timebase reference clock used to synchronize traces To access the Date Time dialog choose Utilities Utilities Setup from the menu bar then touch the Date Time tab or button Manual Method Enter the Hour Minute Second Day Month and Year then touch the Validate Changes button Internet Method This method uses the Simple Network Time Protocol SNTP to read the time from time a nist go...

Страница 92: ...ate to the folder 3 Touch File to be deleted and provide a file name NOTE You can also use the up down arrows to move through the files contained in the Current folder selected 4 With the desired file selected touch Delete File Delete All Files in a Folder 1 Touch the Delete button 2 Touch Current folder and provide the path to the folder or touch Browse and navigate to the folder 3 With the desir...

Страница 93: ...ibrations to perform whenever there is a significant change in ambient temperature NOTE If you do not enable this option the oscilloscope re calibrates only at startup and whenever you make a change to certain operating conditions Language sets the language used on the display Performance settings let you optimize oscilloscope performance for either Analysis speed of acquisition and calculation or...

Страница 94: ...etup The Calibration dialog shows the oscilloscope s calibration status and recommended actions There are two options for this calibration Calibrate All or Calibrate Current Setting l Calibrate All All possible combinations of vertical and horizontal settings are calibrated at the cur rent temperature This calibration is valid for the current temperature 5 C and takes about 50 min utes l Calibrate...

Страница 95: ...level indicator with the trigger point l Div isions keeps the horizontal offset indicator stationary The trigger point remains on the grid as you increase the timebase whereas if Time is selected the trigger point could move off the grid NOTE The Offset is always in volts and the Delay is always in time However whenever Div is selected these are scaled proportional to the change in gain or timebas...

Страница 96: ...icrosoft interface specification that allows different messaging and workgroup applications including e mail voice mail and fax to work through a single client such as the Exchange client MAPI uses the default Windows e mail application l SMTP Simple Mail Transfer Protocol is a TCP IP protocol for sending messages from one com puter to another through a network This protocol is used on the Interne...

Страница 97: ... of the Front Panel knobs Optimized applies an accel eration algorithm to the knobs Legacy detects rotation of the front panel knobs in a manner similar to our legacy oscilloscopes Serial Decode Annotation Position If you have Serial Trigger or Decode options installed on your oscilloscope this control determines the placement of annotation labels relative to the trace line l On Trace places the l...

Страница 98: ...p to six oscilloscope panel settings internally on your instrument If desired you can also save and recall your oscilloscope panel settings as an lss file to a specific hard disk location a network location or USB drive Saving Oscilloscope Setups Access the Save Setup dialog by either selecting File Save Setup from the menu bar or clicking the Save Instrument Setup button on the main Save Recall d...

Страница 99: ...h the name and save date time Otherwise the slot is labeled Empty RECALL SETUP FROM FILE 1 Touch Recall panel from file and provide the path to the destination file or touch Browse to navigate to the file 2 Touch Recall Now Save Recall Waveforms Save Waveform The Save Waveform dialog is used to save traces to either an internal memory location or to a text or binary format file The source waveform...

Страница 100: ...s Binary results in the smallest possible file size and is recommended when recalling waveforms to Teledyne LeCroy instru ments l NOTE Binary files can be converted to ASCII using Teledye LeCroy utilities such as Sco peExplorer or WaveStudio l ASCII Text output file txt extension l MATLAB Text output file compatible with MATLAB dat extension l Excel Text output file compatible with Excel csv exten...

Страница 101: ...he control Recall Waveform Access the Recall Waveform dialog by either choosing File Recall Waveform from the menu bar or clicking the Recall Waveform button on the main Save Recall dialog NOTE Only trc files saved in binary format can be recalled into the oscilloscope RECALL WAVEFORM FROM MEMORY 1 Touch Memory 2 Touch Source and choose a memory location from the Select Source pop up 3 Touch Desti...

Страница 102: ... an alpha character at the end of the number XYZ32a for example 3 Touch Data Format and choose from ASCII txt extension Excel csv extension 4 If you selected ASCII format also touch Delimiter and choose a character 5 Optionally to automatically save data to this file type after each new trigger choose an Auto Saveoption Wrap overwrites old files in the order created Fill stops before overwriting f...

Страница 103: ...which Notebooks are stored to facilitate backup and sharing Create Notebook Entry A Notebook Entry is a snapshot of the oscilloscope at the moment it is taken it captures the waveforms their setups and any measurements in process As each new entry is created it is added to the database of My Notebook Entries accessible from the LabNotebook dialog where they can be organized into different Notebook...

Страница 104: ...ions on the image Touch the point on the image to place the label then enter the text in the pop up dialog Once placed you can resize the textbox or drag it to any location on the image Red Green and Blue Color Selectorslet you quickly change the markup color Just touch the icon then choose the next drawing tool To use additional colors touch the More Button This activates a Custom color field The...

Страница 105: ...ti selection then Select All or scroll the list touching Select as a desired entry is highlighted A white arrow appears next to each selected entry 3 To remove selections from the list highlight them again and touch Clear or just touch Clear All Filter Notebook Entries If there are a large number of notebook entries you can apply filters to the list before selecting 1 Select the notebook from the ...

Страница 106: ... select it on the main LabNotebook dialog then go to the second tab and touch the Print button Delete Notebook Entries Use the Delete button to remove selected Notebook Entries or Delete All to clear the entire My Notebook Entries Be aware that unless you have previously backed up the notebook the deleted entries cannot be restored Create Report Create Reports collates the selected Notebook Entrie...

Страница 107: ... New Notebook Entries will be added to this Notebook whenever it is selected from that list Back Up Notebook 1 Choose File LabNotebook 2 Select the notebook from the My Notebooks list 3 Touch the Backup button next to the My Notebooks list 4 Optionally enter a new File Name or choose a new storage Folder NOTE The default is the current notebook name with the extension bak zip appended to it You ca...

Страница 108: ... on when the Lab Notebook entry is created are not saved individually in the database other than being embedded in the hardcopy image This means that when flashback is used the measurements are recomputed using the recalled waveform data Normally doesn t pose a problem however if cumulative measurements were on when the entry was stored and the cumulative measurements accumulated data from multipl...

Страница 109: ... Area determines how much of the screen image is included in the report grid area only grid area plus dialog whole screen Touch the field and choose from the pop up menu Attach Setup Waveforms attaches these files for each trace in the report waveform data trc a screen dump png oscilloscope setup file lss report template file xsl and export record htm Optionally touch the Configure E Mail button t...

Страница 110: ...t you use the stylus or a capped pen rather than your finger for this procedure 1 From the menu bar choose Utilities Utilities Setup 2 On the Utilities main dialog touch Touchscreen Calibration 3 Following the prompts touch as close as possible to the center of each red cross that appears on the screen until the calibration sequence is complete Language Selection To change the language that appear...

Страница 111: ...ck the Start DSO icon on the desktop X Stream Firmware Update Teledyne LeCroy frequently releases firmware updates for X Stream model oscilloscopes containing new product features and bug fixes The X Stream installer updates multiple components including the oscilloscope application required DLLs drivers and low level microcode for integrated circuits on the oscilloscope The firmware update proced...

Страница 112: ...utes depending on the length of time since your last upgrade Do not power down the oscilloscope at any point during the installation process HDO System Recovery Using Acronis True Image Home Your HDO oscilloscope is designed to operate reliably for many years The application software operating the instrument runs on a Microsoft Windows 7 Professional for Embedded Systems platform The loading or in...

Страница 113: ...y to proceed with Recov ering partition C D Click Proceed to start the recovery process NOTE Recovery takes approximately 4 to 15 minutes depending on the version of operating system that is being restored The progress is displayed on the screen 11 When recovery is complete you will see the message Recover operation succeeded Click OK 12 Click the close button to exit the Acronis window The oscill...

Страница 114: ...e downloaded directly from the Teledyne LeCroy website at teledynelecroy com Most required hardware drivers can be installed during the firmware upgrade Since the calibration data for the oscilloscope is stored in the D drive current calibration constants are not overwritten during recovery of the C drive You do not need to restore these Technical Support Phone Registered users can contact their l...

Страница 115: ...e and address of the owner l Product model and serial number l Description of failure or requisite service 4 Pack the product case in a cardboard shipping box with adequate padding to avoid damage in transit 5 Mark the outside of the box with the shipping address given to you by Teledyne LeCroy be sure to add the following l ATTN RMA code assigned by Teledyne LeCroy l FRAGILE 6 If returning a prod...

Страница 116: ...lecroy com europe Protocol Analyzers Ph 44 12 765 03971 Singapore Oscilloscopes Teledyne LeCroy Singapore Pte Ltd Blk 750C Chai Chee Road 02 08 Technopark Chai Chee Singapore 469003 Ph 65 64424880 FAX 65 64427811 Singapore Protocol Analyzers Genetron Singapore Pte Ltd 37 Kallang Pudding Road 08 08 Tong Lee Building Block B Singapore 349315 Ph 65 9760 4682 China Teledyne LeCroy Corporation Beijing ...

Страница 117: ...1000 4 4 2004 Electrical Fast Transient Burst 1 kV on power supply lines 0 5 kV on I O signal data and control lines 4 EN 61000 4 5 2006 Power line Surge 1 kV AC Mains L N L PE N PE 4 EN 61000 4 6 2007 RF Conducted Electromagnetic Field 3 Vrms 0 15 MHz 80 MHz 4 EN 61000 4 11 2004 Mains Dips and Interruptions 0 1 cycle 70 25 cycles 0 250 cycles 4 5 1 To ensure compliance with all applicable EMC sta...

Страница 118: ...t for measurement control and laboratory use Part 2 030 Particular requirements for testing and measuring circuits The design of the instrument has been verified to conform to the following limits put forth by these standards l Overvoltage Category II equipment intended to be supplied from the building wiring with a nominal supply voltage up to 300V l Measurement Category 0 oscilloscope measuremen...

Страница 119: ...icate Warranty THE WARRANTY BELOW REPLACES ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY FITNESS OR ADEQUACY FOR ANY PARTICULAR PURPOSE OR USE TELEDYNE LECROY SHALL NOT BE LIABLE FOR ANY SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER IN CONTRACT OR OTHERWISE THE CUSTOMER IS RESPONSIBLE FOR THE TRANSPORTATION AND INSURANCE CHARGE...

Страница 120: ...placement parts and repairs all have a 90 day warranty Products not made by Teledyne LeCroy are covered solely by the warranty of the original equipment manufacturer Windows License Agreement The HDO4000Oscilloscope software runs on a Windows operating system Teledyne LeCroy s agreement with Microsoft prohibits users from running software that is not relevant to measuring analyzing or documenting ...

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