Digital Oscilloscopes XDO2025 2-channel - 25 MHz XDO2040 2-channel - 40 MHz Userr s manuall Group CHAUVIN ARNOUX 190, rue Championnet F - 75018 - PARIS Tel. +33 (0)1.44.85.44.85 - Fax +33 (0)1.46.27.73.89 X03583A00 - Ed. 01-09/10
Content Content General Instructions Instrument Description Introduction...4 Precautions and safety measures...4 Symbols on instrument...5 Guarantee, Repair, Servicing...5 Front panel...6 XDO2025 - XDO2040...6 Rear panel...10 XDO2025 - XDO2040...10 AUTO Setup...11 Auto Setup, screen, symbol...11 Autoset function menu...12 VERTICAL System...13 CH1 - CH2 Channel...13 CH1 & CH2 function menus... 14 Knobs in the Vertical mode...15 Vertical POSITION knob...15 Volts/div knob...15 MATH functions...16 MATH function menu...16 MATH function instruction...16 FFT Spectrum Analyser...17 FFT function menus...17 Select FFT window...17 Measuring an FFT Spectrum using cursors...18 Measuring an FFT amplitude...18 Measuring FFT frequency...19 Using REF...20 REF function menu...20 HORIZONTAL System...21 Horizontal System...21 Horizontal system function menu...21 Knobs in Horizontal mode...22 Horizontal POSITION knob...22 Volts/div knob...22 Display scan mode...22 Delayed...22 TRIGGER System...23 Trigger System...23 Signal Source...23 Edge Trigger...23 Edge Trigger function menu...23 Trigger Setup function menu...24 Pulse Trigger...25 Pulse Trigger function menus...25 Video Trigger...27 Video Trigger function menus...27 Slope Trigger...29 Slope Trigger function menus...29 2 Dual-Channel Digital Oscilloscopes
General instructions Content (cont d) Alternative Trigger...31 Edge Trigger function menu...31 Pulse Trigger function menus...32 Video Trigger function menus...33 Slope Trigger function menus...34 Trigger Holdoff...36 ACQUISITION System...37 Acquiring Signal System...37 Acquiring signal function menu...37 DISPLAY System...38 Display System...38 Display system function menus...38 X-Y Format...41 MEASURE System...42 Scale Measurement...42 Cursor Measurement...42 Manual cursor function menu...42 Track mode function menu...43 Auto mode function menu...44 Auto Measurement...45 Auto measure function menu...45 Auto mode function menu : Voltage measure...45 Auto mode function menu : Time measure...46 Auto mode function menu : Delay measure...46 All measurement function menu...47 Introduction of the measure type...47 STORAGE System...49 Storage System...49 Save / Recall Interface...49 Save / Recall...50 Save / Recall setups to device...50 Save / Recall setups to USB flash drive...51 Recall factory setup...53 Save / Recall waveform...53 Save / Recall waveform to device...53 Save / Recall waveform to USB flash drive...54 Save picture...56 Save / Recall Reference Waveform...57 UTILITY System...58 Utility System...58 System status...62 Print...62 Update Firmware...64 Pass/Fail...65 Mask Setting...67 Waveform Record...69 Playback...70 Recorder...71 Technical Specifications...74 General Specifications...77 Dual-Channel Digital Oscilloscopes 3
General Instructions General Instructions Introduction You have just acquired a 2-channel digital oscilloscope : XDO2025, 25 MHz or XDO2040, 40 MHz. This 2-channel oscilloscope provides a set of powerful features for a wide range of applications such as production, education, maintenance, service, research and development. Congratulations for your choice and thank you for your trust in the quality of our products. This instrument conforms to safety standard NF EN 61010-1 (2001), single insulation, and relative to electronic measurement instruments. To obtain optimum service, read these instructions with care and comply with the precautions for use. Failure to comply with these warnings and/or user instructions is liable to cause damage to the equipment and/or its components. This could be dangerous to the user. Precautions and safety measures This instrument has been designed for use: - indoors, - in a pollution degree 2 environment, - at an altitude of less than 2000 m, - at a temperature included between 10 C and 40 C - with relative humidity up to 95 %. It can be supplied by a 240 V CAT II network. definition of installation categories (cf. CEI 664-1) CAT I : CAT I circuits are protected by devices designed to minimize transient overvoltages at a low level. E.g.: protected electronic circuits CAT II :CAT II circuits are domestic or similar equipment power supply circuits that can include average value transient overvoltages. E.g.: power supply to domestic appliances and portable tools. CAT III : CAT III circuits are circuits for power equipment power supplies which may include high transient overvoltages. E.g.: machine or industrial apparatus power supply. CAT IV : CAT IV circuits are circuits that can include very high transient overvoltages. E.g.: energy inputs before use Comply with environment and storage conditions. during use Read carefully all the notes preceded by the symbol. Connect the instrument to an outlet with a ground pin. Be sure not to obstruct the aeration points. As a safety measure, use only suitable cords and accessories supplied with the instrument or type approved by the manufacturer. When the instrument is connected to the measurement circuits, never touch an unused terminal. 4 Dual-Channel Digital Oscilloscopes
General instructions General Instructions (cont d) Symbols on instrument Warning: Risk of danger. Refer to the operating manual to find out the nature of the potential hazards and the action necessary to avoid such hazards. Selective sorting of waste for recycling electric and electronic materials. In accordance with the WEEE 2002/96/EC directive: must not be treated as household waste. Earth symbol USB symbol Fuse symbol European Conformity Guarantee This equipment is guaranteed for 1 year against any material defect or manufacturing faults, in conformity with the general conditions of sale. During this period, the manufacturer may only repair the equipment. He reserves the right to carry out repair or replacement of all or part of the equipment. If the equipment is returned to the manufacturer, forward transport is at the expense of the customer. The guarantee does not apply in the event of: unsuitable use of the equipment or by association with incompatible equipment modification of the equipment without the explicit authorization of the manufacturer technical services operation by a person not approved by the manufacturer adaptation to a specific application not provided for in the equipment definition or in the operating instructions impact fall or flooding. Repair Return your instrument to your distributor for any work to be done within or outside the guarantee. Servicing Turn the instrument off. Clean it with a damp cloth and soap. Never use abrasive products or solvents. Allow drying before any further use. Dual-Channel Digital Oscilloscopes 5
Instrument Description Instrument Description Front panel XDO2025 1 18 3 16 15 14 13 12 10 11 9 8 7 2 17 4 5 6 XDO2040 18 17 16 15 14 13 12 11 10 9 8 7 1 2 3 4 5 6 6 Dual-Channel Digital Oscilloscopes
Instrument Description Instrument Description (cont d) Front panel (cont d) 1 - POWER Power ON / Power OFF 2 - USB USB HOST interface connection 3 - MENU MENU ON / OFF 4 - CH1 - CH2 Input connectors for waveform display 5 - EXT TRIG Input connector for an external trigger source. Use the Trigger Menu to select the Ext or Ext/5 trigger source. 6 - PROBE Voltage probe compensation output and ground. Use to electrically match the probe to the oscilloscope input circuit. 7 - VERTICAL Vertical system key pad (see p. 7 and 12). 8 - HORIZONTAL Horizontal system key pad (see p. 7 and 20). 9 - TRIGGER Trigger system key pad (see p. 8 and 22). 10 - RUN / STOP Continuously acquires waveforms or stops the acquisition. 11 - AUTO Automatically sets the oscilloscope controls to produce a usable display of the input signals. 12 - SINGLE Acquires a single waveform and then stops. 13 - HELP Enters the online help system. 14 - DEFAULT SETUP Recalls the factory setup (language, saved files, contrast, calibration data). 15 - MENU Menu key pad (see p. 8). 16 - UNIVERSAL KNOB Adjusts holdoff, frequency upper and lower limit (and that of the digital filter), x mask and y mask in pass / fail function, record or play back frame in waveform record menu, storage position of setups, waveforms, pictures. This moves cursors, sets pulse width and video linage, selects menu option. 17 - PRINT Print menu (see p. 61). 18 - Keys (x 5) Menu scroll keys Dual-Channel Digital Oscilloscopes 7
Instrument Description Instrument Description (cont d) VERTICAL System 23 23 20 21 22 20 19 19 19 - POSITION Volt/div. knobs (see p. 14). 20 - CH1 - CH2 keys Channel 1, Channel 2 menu control button 21 - MATH MATH function control button 22 - REF Reference waveforms control button, saves waveforms to a non volatile memory. 23 - CH1 - CH2 knobs Vertical position knobs (see p. 14). HORIZONTAL System 26 25 24 24 - POSITION S/div knob (see p. 21). 25 - HORI MENU Displays the horizontal menu. 26 - HORI knob Horizontal position knob (see p. 21). TRIGGER System 27 28 29 30 27 - TRIG MENU Activates the Trigger menu. 28 - SET TO 50% Stabilizes a waveform quickly. 29 - FORCE Use the FORCE button to complete the current waveform acquisition whether the oscilloscope detects a trigger or not. This is useful for Single acquisitions and Normal trigger mode. 30 - LEVEL knob Sets the corresponding signal voltage of trigger point, press the knob to set the trigger level to zero. 8 Dual-Channel Digital Oscilloscopes
Instrument Description Instrument Description (cont d) MENU key pad 31 33 35 32 34 36 31 - CURSORS Displays the cursor menu (see p. 41). Vertical Position controls adjust cursor position while displaying the Cursor Menu and the cursors are activated. Cursors remain displayed (unless the Type option is set to Off ) after leaving the Cursor menu but are not adjustable. 32 - ACQUIRE Displays the Acquiring signal system (see p. 35). 33 - SAVE/RECALL Displays the Save/Recall Menu for setups and waveforms (see p. 48). 34 - MEASURE Displays the Automatic Measurement menu (see p. 41). 35 - DISPLAY Displays the Display menu (see p. 37). 36 - UTILITY Displays the Utility system (see p. 57). Dual-Channel Digital Oscilloscopes 9
Instrument Description Instrument Description (cont d) Rear panel XDO2025 38 37 40 39 37 - Pass / Fail PASS / FAIL output 38 - RS 232 RS 232 connector 39 - USB Back USB connector 40 - Plug Power input connector XDO2040 41 44 42 43 41 - Pass / Fail PASS / FAIL output 42 - RS 232 RS 232 connector 43 - USB Back USB connector 44 - Plug Power input connector 10 Dual-Channel Digital Oscilloscopes
AUTO Setup Auto Setup Autoset determines the trigger source based on the following conditions: If multiple channels have signals: channel with the lowest frequency signal. No signals found: the lowest-numbered channel displayed when Autoset was invoked. No signals found and no channels displayed: the oscilloscope will display and use channel 1. Input a signal to Channel 1, press the Auto button. Multi-cycle sine Single-cycle sine Rising edge Falling edge Undo Setup Auto set the screen and display several cyc signal. Set the screen and auto display single cyc signal. Auto set and show the rising time. Auto set and show the falling time. Causes the oscilloscope to recall the previous setup. Dual-Channel Digital Oscilloscopes 11
AUTO Setup (cont d) Autoset function menu Function Acquire Mode Display Format Display Type Vertical Coupling Setting Adjusted to Sampling Y-T Set to Dots for a video signal, set to Vectors for an FFT spectrum; otherwise, unchanged Adjusted to DC or AC according to the input signal Bandwidth Limit V/div VOLTS/DIV adjustability Signal inverted Horizontal position S/div Trigger type Trigger source Trigger slope Trigger mode Trigger coupling Trigger holdoff Off (full) Adjusted Coarse Off Centre Adjusted Edge Auto detect the channel which has the input signal Rising Auto DC Minimum Trigger level Set to 50% 12 Dual-Channel Digital Oscilloscopes
VERTICAL System CH1 - CH2 Channel CH1 & CH2 function menu 1 Option Setting Description Coupling BW limit (XDO2040 only) Volts/Div Probe DC AC GND On Off Coarse Fine 1 x 5 x 10 x 100 x 500 x 1000 x DC passes both AC and DC components of the input signal. AC blocks the DC component of the input signal and attenuates signals below 10 Hz. GND disconnects the input signal. Limits the bandwidth to reduce display noise; filters the signal to reduce noise and other unwanted high frequency components. Selects the resolution of the Volts/Div knob Coarse defines a 1-2-5 sequence. Fine changes the resolution to small steps between the coarse settings (higher than 20 MHz are obstructed). Set to match the type of probe you are using to ensure correct vertical readouts. Dual-Channel Digital Oscilloscopes 13
VERTICAL System (cont d) CH1 & CH2 function menu 2 Option Setting Description Invert Digital Filter on off Turn on invert function. Turn off invert function. Turn the Universal knob to adjust them. Press this button to enter the Digital Filter menu. Digital filter function menu Option Setting Description Digital Filter Type Upper_limit Lower_limit Return on off Turn on the digital filter. Turn off the digital filter. Turn the Universal knob to adjust them. Setup as LPF (Low Pass Filter). Setup as HPF (High Pass Filter). Setup as BPF (Band Pass Filter). Setup as BRF (Band Reject Filter). Turn the Universal knob to set upper limit. Turn the Universal knob to set lower limit. Return the digital filter main menu. 14 Dual-Channel Digital Oscilloscopes
VERTICAL System (cont d) Knobs in the «VERTICAL» mode Vertical POSITION knob Volts/div knob 1. Use the Vertical POSITION knobs to move the channel waveforms up or down on the screen. 2. When you adjust the vertical position of channels waveforms, the vertical position information will be displayed on the bottom left of screen. 3. Press the vertical POSITION knob to set the vertical position to zero. 1. Use the Volts/div knobs to control how the oscilloscope amplifies or attenuates the source signal of channel waveforms. When you turn the volts/div knob, the oscilloscope increases or decreases the vertical size of the waveform on the screen with respect to the ground level; 2. When you press the Volt/div Knob, you can switch Volt/div option between Coarse and Fine. The vertical scale is ensured by the 1-2-5 step in Coarse mode. In the fine mode, the knob changes the Volts/Div scale into small steps between the coarse settings. Dual-Channel Digital Oscilloscopes 15
VERTICAL System (cont d) MATH functions This shows the results after +, -, and FFT operation of the CH1 and CH2. Press the MATH button to display the waveform math operations. MATH function menu Function Setting Description Operation +, -, *, FFT Choose MATH operations. CH1 Invert CH2 Invert on off on off Invert the CH1 waveform. Turn off CH1 Invert function. Invert the CH2 waveform. Turn off CH2 Invert function. By rotating the universal knob to adjust the vertical position of waveform after operation By rotating the universal knob to adjust the vertical range of waveform after operation MATH function instruction Operation Setting Description + CH1+CH2 CH1 adds CH2. - CH1-CH2 CH2 is subtracted from CH1. CH2-CH1 CH1 is subtracted from CH2. * CH1*CH2 CH1 multiplies CH2. / CH1/CH2 CH1 divides CH2. CH2/CH1 CH2 divides CH1. FFT Fast Fourier Transform. 16 Dual-Channel Digital Oscilloscopes
VERTICAL System (cont d) FFT Spectrum Analyser The FFT process mathematically converts a time-domain signal into its frequency components. You can take two measurements on FFT spectrums: magnitude (in db) and frequency (in Hz). FFT function menu 1 FFT Option Setting Description Source CH1 Select this channel as the FFT source. CH2 FFT function menu 2 Window FFT ZOOM Hanning Hamming Rectang. Blackman 1 x 2 x 5 x 10 x Select FFT window types. Changes the horizontal magnification of the FFT display. Uses cursors to take measurements of the FFT spectrum. FFT Option Setting Description Scale Vrms Set Vrms to be the Vertical Scale unit. dbvrms Set dbvrms to be the vertical Scale unit. Display Split Full screen Display FFT waveform on half screen. Display FFT waveform on full screen. Select FFT window Window Speciality Satisfied Test content Rectangular Hanning Hamming Blackman Best frequency resolution, worst magnitude resolution. This is essentially the same as no window. Better frequency, poorer magnitude accuracy than Rectangular. Hamming has slightly better frequency resolution than Hanning. Best magnitude, worst frequency resolution. Symmetric transients or bursts. Equal-amplitude sine waves with fixed frequencies. Broadband random noise with a relatively slowly varying spectrum. Sine, periodic, and narrow-band random noise. Asymmetric transients or bursts. Single frequency waveforms, to find higher order harmonics. Dual-Channel Digital Oscilloscopes 17
VERTICAL System (cont d) Measuring an FFT Spectrum using cursors You can take two measurements on FFT spectrums : magnitude (in db) and frequency in Hz. Measuring an FFT amplitude Once viewed the spectrum : 1. Press the CURSOR button to enter Cursor menu. 2. Press Cusor Mode to select Manual. 3. Press Type to select Voltage. 4. Press Source to select MATH. 5. Press CurA, turn the Universal knob to move Cursor A to the highest point of the FFT waveform. 6. Press CurB, turn the Universal knob to move Cursor B to the lowest point of the FFT waveform. 7. The amplitude ( T) is displayed at the top right of the screen. 18 Dual-Channel Digital Oscilloscopes
VERTICAL System (cont d) Measuring FFT frequency 1. Press the CURSOR button. 2. Press Cursor Mode to select Manual. 3. Press Type to select Time. 4. Press Source to select MATH. 5. Press Cur1, turn the Universal button to move Cursor 1 to the highest position of the FFT waveform. 6. The value of Cur1 displaying on the top right of the screen is FFT highest Frequency. This frequency should be the same as input signal frequency. Note To display FFT waveforms with a large dynamic range, use the dbvrms scale. The dbvrms scale displays component magnitudes using a log scale. Dual-Channel Digital Oscilloscopes 19
VERTICAL System (cont d) Using REF The reference control saves waveforms to a non-volatile waveform memory. The reference function becomes available after a waveform has been saved. REF function menu Press the «REF» button. Option Setting Introduction Source CH1 CH2 CH1 off CH2 off Choose the waveform display to store. REFA REFB Save REFA/REFB on off Choose the reference location to store or recall a waveform. Stores source waveform to the chosen reference location. Recall the reference waveform on the screen. Turn off the reference waveform. 20 Dual-Channel Digital Oscilloscopes
HORIZONTAL System HORIZONTAL System Horizontal system function menu Option Setting Description Delayed MemDepth On Off Normal Long Mem Turn on this function in order to simultaneously display the main waveform time base on the top half of the screen and the window time base waveform on the bottom half of the screen Turn off this function in order to display only the main waveform time base on the screen. Set memory depth to normal (32 kpts). Set memory depth to long Memory depth in order to get more waveform dots (2 Mpts). Note Only XDO2040 series supports Long Memory. Dual-Channel Digital Oscilloscopes 21
HORIZONTAL System (cont d) Knobs in the «Horizontal» mode Horizontal POSITION knob S/div knob Display scan mode Delayed You can use the horizontal controls to change the horizontal scale and position of waveforms. 1. Adjust the horizontal position of all channels and math waveforms (the position of the trigger relative to the centre of the screen). The resolution of this control varies with the time base setting. 2. When you press the horizontal POSITION knob, you can set the horizontal position to zero. 1. Using to change the horizontal time scale to magnify or compress the waveform. If waveform acquisition is stopped (using the RUN/STOP or SINGLE button), turn the S/div knob to expand or compress the waveform. 2. Select the horizontal time/div (scale factor) for the main or the window time base. When Window Zone is enabled, it changes the width of the window zone by changing the window time base. When the SEC/DIV control is set to 100 ms/div or slower and the trigger mode is set to Auto, the oscilloscope enters the scan acquisition mode. In this mode, the waveform display updates from left to right. There is no trigger or horizontal position control of waveforms during scan mode. Use the Window Zone option to define a segment of a waveform to see more detail. The Window time base setting cannot be set slower than the Main time base setting. You can turn the Horizontal Position and SEC/DIV controls to enlarge or diminish waveforms in the Window Zone. Follow these steps if you want to see a section of the waveform in detail : 1. Press the HORI MENU button to enter the Horizontal menu. 2. Turn the S/div knob to change the main timebase scale. 3. Press the Delayed option button to select On. Turn the Horizontal Position knob (adjust window s position) to select the window that your need and expanded window waveform display on the below half screen at the same time. 22 Dual-Channel Digital Oscilloscopes
TRIGGER System TRIGGER System Signal source The trigger determines when the oscilloscope starts to acquire data and to display a waveform. XDO series has five trigger type : Edge, Video, Pulse, Slope, Alternative The source can be any signal connected to a channel BNC, to the EXT TRIG BNC or the AC power line (available only with Edge triggers). Edge Trigger EdgeTrigger function menu Option Setting Description Type Edge With Edge highlighted, the rising or falling edge of the input signal is used for the trigger. Source CH1 CH2 Triggers on a channel whether or not the waveform is displayed. EXT EXT/5 AC Line Does not display the trigger signal; the Ext option uses the signal connected to the EXT TRIG front-panel BNC and allows a trigger level range of -1.2V to +1.2V. Same as Ext option, but attenuates the signal by a factor of five, and allows a trigger level range of +6V to -6V.This extends the trigger level range. This selection uses a signal derived from the power line as the trigger source; trigger coupling is set to DC and the trigger level to 0V. Slope Mode Set up Auto Normal Single Trigger on Rising edge of the trigger signal. Trigger on Falling edge of the trigger signal. Trigger on Rising and Falling edge of the trigger signal. The waveform refreshes a high-speed whether the trigger condition is satisfied or not The waveform refreshes when the trigger condition is satisfied and waits for next trigger event occurring when the trigger condition is not satisfied. The oscilloscope acquires a waveform when the trigger condition is satisfied and then stops. Enter the Trigger Setup Menu. Dual-Channel Digital Oscilloscopes 23
TRIGGER System (cont d) Trigger Setup function menu Option Setting Description Coupling Holdoff DC AC HF Reject LF Reject Passes all components of the signal Blocks DC components and attenuates signals below 10 Hz. Attenuates the high-frequency components above 80 khz. Blocks the DC component and attenuates the low-frequency components below 300 khz. Using the universal knob to adjust holdoff time (sec), the holdoff value is displayed. Holdoff Reset Return Reset holdoff time to 100 ns. Return the first page of Trigger main menu. 24 Dual-Channel Digital Oscilloscopes
TRIGGER System (cont d) Pulse Trigger Pulse Trigger function menu 1 Option Setting Description Type Pulse Select the pulse to trigger the pulse match the trigger condition. Source When CH1 CH2 EXT EXT/5 (Positive pulse width less than pulse width setting) (Positive pulse width larger than pulse width setting) (Positive pulse width equal to pulse width setting) (Negative pulse width less than pulse width setting) (Negative pulse width larger than pulse width setting) (Negative pulse width equal to pulse width setting) Select input signal source. Select how to compare the trigger pulse relative to the value selected in the Set Pulse Width option. Set Width 20.0ns to 10.0s Selecting this option can turn the universal to set up the pulse width. Dual-Channel Digital Oscilloscopes 25
TRIGGER System (cont d) Pulse Trigger function menu 2 Option Setting Description Type Pulse Select the pulse to trigger the pulse match the trigger condition. Mode Set up Auto Normal Single Select the type of triggering; Normal mode is best for most Pulse Width trigger applications. Enter the Trigger setup menu. 26 Dual-Channel Digital Oscilloscopes
TRIGGER System (cont d) Video Trigger Video Trigger 1 function menu Option Setting Instruction Type Video When you select the video type, set the AC coupling, it then becomes possible to trigger the NTSC, PAL and SECAM video signal. Source CH1 CH2 Select the input source to be the trigger signal. Polarity Sync EXT EXT/5 (normal) (inverted) Line Num All lines Odd field Even Field Ext and Ext/5 use the signal applied to the EXT TRIG connector as the source. Normal triggers on the negative edge of the sync pulse. Inverted triggers on the positive edge of the sync pulse. Select appropriate video sync. Dual-Channel Digital Oscilloscopes 27
TRIGGER System (cont d) Video Trigger 1 function menu Option Setting Instruction Type Video When you select the video type, set the AC coupling, then you could trigger the NTSC, PAL and SECAM video signal. Standard Mode Set up NTSC Pal/ Secam Auto Normal Single Select the video standard for sync and line number count. Use this mode to let the acquisition run in the absence of a valid trigger; This mode allows an untriggered, scanning waveform at 100 ms/div or slower time base settings. Use this mode when you want to see only valid triggered waveforms; when you use this mode, the oscilloscope does not display a waveform until after the first trigger. When you want the oscilloscope to acquire a single waveform, press the SINGLE button. Enter the Trigger setup menu. 28 Dual-Channel Digital Oscilloscopes
TRIGGER System (cont d) Slope Trigger Slope Trigger function menu 1 Option Setting Instruction Type Slope Trigger on positive slope of negative slope according to setup time of the oscilloscope. Source When CH1 CH2 EXT EXT/5 Select trigger source. Select trigger condition. Time (Set time) Turn the Universal knob to set slope time. Time setup range is 20 ns -10 s. Dual-Channel Digital Oscilloscopes 29
TRIGGER System (cont d) Slope Trigger function menu 2 Option Setting Instruction Type Slope Trigger on positive slope of negative slope according to setup time of the oscilloscope. Vertical Select the trigger level that can be adjusted by LEVEL knob. You can adjust LEVEL A, LEVEL B or adjust them at the same time. Mode Set up Auto Normal Single Use this mode to let the acquisition run in the absence of a valid trigger; This mode allows an untriggered, scanning waveform at 100 ms/div or slower time base settings. Use this mode when you want to see only valid triggered waveforms; when you use this mode, the oscilloscope does not display a waveform until after the first trigger. when you want the oscilloscope to acquire a single waveform, press the SINGLE button. Enter the Trigger setup menu. 30 Dual-Channel Digital Oscilloscopes
TRIGGER System (cont d) Alternative Trigger The trigger signal comes from two vertical channels when you use the alternative trigger. In this mode, you can observe two irrelative signals at the same time. You can select different trigger types for two vertical signals and selected types cover edge, pulse, video and slope trigger. Trigger information for the two channel signals is displayed at the bottom right of the screen. Edge Trigger function menu Option Setting Instruction Type Alternative The trigger signal comes from two vertical channels when you use alternative trigger. In this mode you can observe two irrelative signals at the same time. Source Mode Slope Set up CH1 CH2 Edge Set trigger type information for CH1 signal Set trigger type information for CH2 signal Set trigger type of the vertical channel signal to Edge Triggering on rising edge. Triggering on falling edge. Triggering on rising edge and falling edge. Enter the Trigger setup menu. Dual-Channel Digital Oscilloscopes 31
TRIGGER System (cont d) Pulse Trigger function menu 1 Option Setting Instruction Type Alternative The trigger signal comes from two vertical channels when you use alternative trigger. In this mode, you can observe two irrelative signals at the same time. Source Mode CH1 CH2 Pulse Set trigger type information for CH1 signal Set trigger type information for CH2 signal Set trigger type of the vertical channel signal to Pulse trigger. When Select how to compare the trigger pulse relative to the value selected in the Set Pulse Width option. Pulse Trigger function menu 2 Option Setting Description Set Width 20.0ns 10.0s Selecting this option can turn the universal to set up the pulse width. Set up Enter the Trigger Setup Menu 32 Dual-Channel Digital Oscilloscopes
TRIGGER System (cont d) Video Trigger function menu 1 Option Setting Instruction Type Alternative The trigger signal comes from two vertical channels when you use alternative trigger. In this mode, you can observe two nonrelated signals at the same time. Source CH1 CH2 Set trigger type information for CH1 signal Set trigger type information for CH2 signal Mode Video Set trigger type of the vertical channel signal to Video trigger. Polarity (normal) (inverted) Normal triggers on the negative edge of the sync pulse. Inverted triggers on the positive edge of the sync pulse. Video Trigger function menu 2 Option Setting Instruction Sync Standard Line Num All lines Odd field Even Field NTSC Pal/Secam Select appropriate video sync. Select the video standard for sync and line number count. Dual-Channel Digital Oscilloscopes 33
TRIGGER System (cont d) Slope Trigger function menu 1 Option Setting Instruction Type Alternative The trigger signal comes from two vertical channels when you use alternative trigger. In this mode, you can observe two nonrelated signals at the same time. Source Mode CH1 CH2 Slope Set trigger type information for CH1 signal Set trigger type information for CH2 signal Set trigger type of the vertical channel signal to slope trigger. When Select slope trigger condition. Slope Trigger function menu 2 Option Setting Instruction Time Vertical (Set time) Turn the Universal knob to set the slope time. Time setup range is 20 ns - 10 s. Select the trigger level that can be adjusted by LEVEL knob. You can adjust LEVEL A, LEVEL B or adjust them at the same time. Set up Enter the Trigger setup menu. 34 Dual-Channel Digital Oscilloscopes
TRIGGER System (cont d) Follow these steps to observe two irrelative channel signals : 1. Input two irrelative signals to channel 1 and channel 2. 2. Press the AUTO button. 3. Press TRIG MENU to enter trigger menu. 4. Press Type to select Alternative. 5. Press Source to select CH1. 6. Press S/div to optimize waveform display. 7. Press Mode to select Edge, Pulse, Slope or Video. 8. Set the trigger according to trigger edge. 9. Press Source to select CH2. 10. Turn S/div to optimize waveform display. 11. Repeat steps 7 and 8. Dual-Channel Digital Oscilloscopes 35
TRIGGER System (cont d) Trigger Holdoff You can use the Trigger Holdoff function to produce a stable display of complex waveforms. Holdoff is the time between when the oscilloscope detects one trigger and when it is ready to detect another one. If you want to change the holdoff time, follow these steps: 1. Press the TRIG MENU button to show the TRIG Menu. 2. Press Type to select trigger type. 3. Press Set up to enter the Trigger setup menu. 4. Press Holdoff and turn the Universal knob to change the holdoff time until the waveform trigger steadily. 36 Dual-Channel Digital Oscilloscopes
ACQUISITION System Acquiring Signal System When you acquire a signal, the oscilloscope converts it into a digital form and displays a waveform. The acquisition mode defines how the signal is digitized and the time base setting affects the time span and level of detail for the acquisition. Press the ACQUIRE button. Acquiring signal function menu Option Setting Description Acquisition Sampling Use for sampling and accurately display most of the waveform. Peak Detect Detect the noise and decrease the possibility of aliasing. Sin/x Average Use to reduce random or uncorrelated noise in the signal display. x Sin/x x Mode Averages 4, 16, 32 64, 128, 256 Sin/x x Equ time Select number of averages. Sinusoïdal Interpolation Linear Interpolation Set the Sampling mode to Equ time. The equivalent time sampling mode can achieve up to 20 ps of horizontal resolution (equivalent to 50 GSa/s). This mode is good for observing repetitive waveforms. Real time Set the Sampling mode to Real time. In Real time mode, turn the S/div knob to display the real time sampling rate at corresponding time base scale; In Equ time mode, turn the S/div knob to display the equ time sampling rate at corresponding time base scale. Sa Rate Display system sampling rate. Dual-Channel Digital Oscilloscopes 37
DISPLAY System DISPLAY System Display system function menu 1 Press the DISPLAY button. Option Setting Description Type Vectors Dots "Vectors" fills the space between adjacent sample points in the display. Dots : display sample points Directly. Persist Off 1 sec 2 sec 5 sec Infinite Sets the length of time for which each displayed sample point will be displayed. Intensity Brightness <Intensity> <Intensity> Set waveform intensity. Set grid brightness. 38 Dual-Channel Digital Oscilloscopes
DISPLAY System (cont d) Display system function menu 2 Option Setting Description Format YT YT format displays the vertical voltage in relation to time (horizontal scale). XY XY format displays a dot each time a sample is acquired on channel 1 and channel 2. Screen Normal Inverted Set to normal mode. Set to invert colour display mode. Grid Display grids and axes on the screen. Turn off the grids. Turn off the grids and axes. Menu Display 2 sec 5 sec 10 sec 20 sec Infinite Set menu display time on screen. Dual-Channel Digital Oscilloscopes 39
DISPLAY System (cont d) Display system function menu 3 Option Setting Description Skin Classical Modern Tradition Succinct Set up screen style. 40 Dual-Channel Digital Oscilloscopes
DISPLAY System (cont d) X-Y Format Use the XY format to analyze phase differences. The format plots the voltage on channel 1 against the voltage on channel 2, where channel 1 is the horizontal axis and channel 2 is the vertical axis. The oscilloscope uses the untriggered Sample acquisition mode and displays data as dots. Operation steps Channel 1 Volt/div and vertical POSITION set up the horizontal scale and position. Channel 2 Volt/div and vertical POSITION set up the horizontal scale and position. Turn the S/div knob to adjust the sampling rate (Range : 5 ks/s 200 MS/s). Option Setting Description Cursor Mode Manual In this menu, set the manual cursor measure. Type Source Cur A Voltage Time CH1 CH2 MATH REFA REFB Use cursor to measure voltage parameters. Voltage Cursor: Voltage cursors appear as horizontal lines on the display and measure the vertical parameters. Use cursor to measure time parameters. Time Cursor: Time cursors appear as vertical lines on the display and measure the horizontal parameters. Select input signal channel. Select this option turn the Universal knob to adjust cursor A. Cur B Select this option turn the Universal knob to adjust cursor B. Dual-Channel Digital Oscilloscopes 41
MEASURE System The oscilloscope displays the voltage in relation to time and tests the wave form displayed. There are scale, cursor and auto measure modes. Scale Measurement Cursor Measurement This method allows you to make a quick visual estimate. The cursor measurement has three modes: Manual, Track and Auto. Press the CURSOR button. Manual Cursor function menu Option Setting Description Cursor Mode Manual In this menu, set the manual cursor measure. Type Source Cur A Voltage Time CH1 CH2 MATH REFA REFB Use cursor to measure voltage parameters. Use cursor to measure time parameters. Select input signal channel. Select this option turn the Universal knob to adjust cursor A. Cur B Select this option turn the Universal knob to adjust cursor B. 42 Dual-Channel Digital Oscilloscopes
MEASURE System (cont d) Track mode function menu. Option Setting Description Cursor Mode Track In this mode, set track cursor measure. CH1 Cursor A Set the input signal channel that the CH2 Cursor A will measure. NONE Cur B Cur A Cur B CH1 CH2 NONE Set the input signal channel that the Cursor B will measure. Select this option, turn the Universal knob to adjust horizontal coordinate of Cursor A. Select this option, turn the Universal knob to adjust horizontal coordinate of Cursor B. In this mode, the screen displays two cross cursors. The cross cursor sets the position on the waveform automatically. You can adjust the cursor s horizontal position on the waveform by turning the Universal knob. The oscilloscope displays the values on the top right of the screen. Dual-Channel Digital Oscilloscopes 43
MEASURE System (cont d) Auto mode function menu Option Setting Description Cursor Mode Auto Set to auto cursor measure mode. This mode will take effect with automatic measurements. Follow these steps to perform auto cursor measurements : 1. Press the CURSOR button to enter Cursor measure menu. 2. Press the Cursor Mode option button to select Auto. 3. Press the MEASURE button to enter Auto cursor measure mode menu to select the parameter that you want to measure. 44 Dual-Channel Digital Oscilloscopes
MEASURE System (cont d) Auto Measurement Press the MEASURE button for the Automatic Test. There are three auto measurement types: Voltage Measure, Time Measure and Delay Measure. There are 32 measure parameters. Auto measure function menu 1 Option Voltage Time Delay All Mea Return Instruction Press this button to enter the Voltage measure menu. Press this button to enter the Time measure menu. Press this button to enter the Delay measure menu. Press this button to enter the All Measurement menu. Press this option button to return the home page of the auto measure menu. Auto measure function menu 2 : Voltage measure menu Option Setting Instruction Source Type CH1 CH2 MATH REFA REFB Vmax, Vmin, Vpp, Vamp, Vtop, Vbase, Cycle Mean, Mean, Cycle Vrms, Vrms, ROVShoot, FOVShoot, RPREShoot, FPREShoot Select input signal source for Voltage measure. Press the Type button or turn the Universal knob to select Voltage measure parameter. Display the corresponding icon and measure value of your selected Voltage measure parameter. Return Return to the first page of auto measurement menu. Dual-Channel Digital Oscilloscopes 45
MEASURE System (cont d) Auto measure function menu 3 Time measure menu Option Setting Instruction Source Type Return CH1 CH2 MATH REFA REFB Rise Time Fall Time Freq Period BWidth +Width -Width +Duty -Duty Select input signal source for Voltage measure. Press the Type button or turn the Universal knob to select Voltage measure parameter. Display the corresponding icon and measure value of your selected Voltage measure parameter. Return to the first page of auto measurement menu. Auto measure function menu 4 Delay measure menu Option Setting Instruction Source Type Return CH1 CH2 MATH REFA REFB Phase FRR FRF FFR FFF LRR LRF LFR LFF Select input signal source for Delay measure. Press the Type button or turn the Universal knob to select Delay measure parameter. Display the corresponding icon and measure value of your selected Delay measure parameter. Return to the first page of auto measurement menu. 46 Dual-Channel Digital Oscilloscopes
MEASURE System (cont d) All measurement function menu Option Setting Description Source Voltage Time Delay Return CH1 CH2 On Off On Off On Off Select input signal channel. Turn on the all measurement function to measure voltage parameters. Turn off the all measurement function to measure voltage parameters. Turn on the all measurement function to measure Time parameters. Turn off the all measurement function to measure Time parameters. Turn on the all measurement function to measure Delay parameters. Turn off the all measurement function to measure Delay parameters. Return to the All Measure main menu. Introduction of the measure type Measure Type Vmax Vmin Vpp Vtop Vbase Vamp Vavg Mean Crms Vrms Description The most positive peak voltage measured over the entire waveform. The most negative peak voltage measured over the entire waveform. Measures the absolute difference between the maximum and minimum peaks of the entire waveform. Measures the highest voltage over the entire waveform. Measures the lowest voltage over the entire waveform. Voltage between Vhig and Vlow of a waveform. The arithmetic mean over the first cycle in the waveform. The arithmetic mean over the entire waveform. The true Root Mean Square voltage over the first cycle in the waveform. The true Root Mean Square voltage over the entire waveform. Dual-Channel Digital Oscilloscopes 47
MEASURE System (cont d) All measurement function menu (cont d) ROVShoot FOVShoot RPREshoot FPREshoot Rise Time Fall Time BWid + Wid Defined as (Vmax-Vhig)/Vamp after the waveform rising. Defined as (Vmin-Vlow)/Vamp after the waveform falling. Defined as (Vmin-Vlow)/Vamp before the waveform rising. Defined as (Vmax-Vhig)/Vamp before the waveform falling. Rise Time Measures the time between 10% and 90% of the first rising edge of the waveform. Fall Time Measures the time between 90% and 10% of the first falling edge of the waveform. The duration of a burst. Measured over the entire waveform. + Width Measures the time between the first rising edge and the next falling edge at the waveform 50% level. - Wid -Width Measures the time between the first falling edge and the next rising edge at the waveform 50% level. + Duty - Duty Phase Measures the first cycle waveform. Positive Duty Cycle is the ratio between positive pulse width and period. Measures the first cycle waveform. Negative Duty Cycle is the ratio between negative pulse width and period. The amount one waveform leads or lags another in time. Expressed in degrees, where 360 degrees comprise one waveform cycle. FRR FRF FFR FFF LRR LRF LFR LFF The time between the first rising edge of source 1 and the first rising edge of source 2. The time between the first rising edge of source 1 and the first falling edge of source 2. The time between the first falling edge of source 1 and the first rising edge of source 2. The time between the first falling edge of source 1 and the first falling edge of source 2. The time between the first rising edge of source 1 and the last rising edge of source 2. The time between the first rising edge of source 1 and the last falling edge of source 2. The time between the first falling edge of source 1 and the last rising edge of source 2. The time between the first falling edge of source 1 and the last falling edge of source 2. 48 Dual-Channel Digital Oscilloscopes
STORAGE System STORAGE System The XDO series can save 2 group reference waveforms, 20 group setups and 20 group waveforms to the oscilloscope s internal memory. There is a USB Host interface on the front panel of the oscilloscope and it is possible to save setup data, waveform data, waveform interface image, CSV file to a USB flash drive. Setup data and waveform data can be recalled to the current oscilloscope or the other same model oscilloscopes. Picture data and CSV files can t be recalled to the oscilloscope, but can be opened on the adequate computer software. CSV files saved on the USB drive are formatted in sec. and volts. SAVE / RECALL setup Interface Select operating object Create new needed folder Delete present folder Select operating object Create new files in present directories Delete present file Recall stored files or present settings Dual-Channel Digital Oscilloscopes 49
STORAGE System (cont d) Modify the file name Return to the last Save / Recall setups The complete setup is stored in non-volatile memory. The oscilloscope saves the current setup provided you wait three seconds after the last change before powering off the oscilloscope. The oscilloscope will recall this setup the next time you turn it on. Press the SAVE / RECALL button. Save / Recall setups to device Option Setting Description Type Setups Menu for the Save / Recall setting in the oscilloscope Save to Device Save setup to the oscilloscope s internal memory. Setup No.1 to No.20 Press the Setup option button or turn the universal knob to select storage position. Save Recall Perform the save Recall the storage in the Setup operation 50 Dual-Channel Digital Oscilloscopes
STORAGE System (cont d) Follow these steps To save setups to the oscilloscope s internal memory or to recall saved setups. For example: to save the setup so that the oscilloscope displays the waveform as Dots to the oscilloscope s internal memorizer. 1. Press the SAVE/RECALL button to enter the SAVE/RECALL menu. 2. Press the Type option button to select setups. 3. Press the Save to option button to select Device. 4. Press the Setup option button to select No.1. 5. Press the DISPLAY button to enter the Display menu. 6. Press the Type option button to select Dots. 7. Press the SAVE/RECALL button to enter the SAVE/RECALL menu. 8. Press the Save option button. Follow these steps if the display type has been changed and you want to recall this setup : 1. Press the SAVE/RECALL button to enter the SAVE/RECALL display menu. 2. Press the Type option button to select Setups. 3. Press the Save to option button to select Device. 4. Press the Setup option button or turn the Universal knob to select No.1. 5. Press the Recall option button. Save / Recall setups to USB flash drive Option Setting Introduction Type Setups Menu for the Storage/Recall settings. Save to File Save setup data to USB flash drive. Save Go to the Save/Recall interface Dual-Channel Digital Oscilloscopes 51
STORAGE System (cont d) Follow these steps To save setups to the USB flash drive : For example: to save setup so that the oscilloscope displays the waveform as Dots to the oscilloscope s internal memory. 1. Press the SAVE/RECALL button to select Setups. 2. Press the Save to button to select file. 3. Insert the USB drive. 4. Press the Save button, then go to the Save/Recall interface. 5. Press the New folder button to create a new folder 6. Press Del folder to delete a folder 7. Press Modify to modify a folder. 8. Press New file to create a new file 9. Press Del file to delete a file 10. Press the next page and press the Rename to change the name of the file or the folder. 11. Press Confirm" to save the setting to the USB drive. 12. Press the SAVE/RECALL button before removing the USB drive. Follow these steps To recall setups data from USB flash drive : For example: To recall a setup so that the oscilloscope will display the waveform as Dots from the oscilloscope s internal memory. 1. Press the SAVE/RECALL button. 2. Press the button to select Setups. 3. Press the Save to option and select file. 4. Press Save and go to the Save/Recall interface 5. Choose the file you want to load then press the Load button. 52 Dual-Channel Digital Oscilloscopes
STORAGE System (cont d) Recall Factory To recall the factory setup : Option Setting Description Type Factory To view the Factory setup. Load Recall the Factory setup. Save / Recall waveform Save / Recall waveform The oscilloscope will display the waveforms that you want to save. The oscilloscopes can store twenty captured waveforms to a non volatile memory. Option Setup Description Type waveforms Menu for the Save / Recall of waveforms in the oscilloscope. Save to Device Saves waveforms to the oscilloscope s internal memory. waveform Save Recall No. 1 to No. 20 Press the waveform option button or turn the Universal knob to select storage position. Perform the storage. Recall the storage in the waveform operation Dual-Channel Digital Oscilloscopes 53
STORAGE System (cont d) Follow these steps To save a waveform to the internal memory: 1. Press the SAVE/RECALL button to enter SAVE/RECALL display menu. 2. Press the Type button to select waveforms. 3. Press Save to to select Device. 4. Press waveform or turn the Universal knob to select No.1. 5. Turn the Volts/div knob or S/div knob to adjust the waveform that you want to save. 6. Press Save. Follow these steps To recall a saved waveform from the internal memory: 1. Press the SAVE/RECALL button to enter SAVE/RECALL display menu. 2. Press Type to select waveforms. 3. Press Save to to select Device. 4. Press waveform or turn the Universal knob to select No.1. 5. Press Recall. Save / Recall waveform to USB flash drive Option Setup Description Type Waveforms Menu for the Storage/Recall waveforms. Save to File Save waveforms to USB flash drive. Save Accomplish the storage. 54 Dual-Channel Digital Oscilloscopes
STORAGE System (cont d) Follow these steps To save a waveform to a USB flash drive : 1. Input a sine signal to channel 1, press the AUTO button. 2. Press SAVE/RECALL to enter the SAVE/RECALL display menu. 3. Press Type to select Waveforms. 4. Insert the USB flash drive. 5. Press Save to to select File. 6. Press Save to enter the Save/Recall interface. 7. Create a file then press Confirm (for about ten seconds). 8. Press SAVE/RECALL before removing the USB drive. Follow these steps To recall a saved waveform from the USB flash drive : 1. Press the SAVE/RECALL button. 2. Press Type to select Waveforms. 3. Insert the USB flash drive. 4. Press Save to to select File. 5. Press Save to enter the Save/Recall interface. 6. Choose the file you want then press Load (for five seconds). Dual-Channel Digital Oscilloscopes 55
STORAGE System (cont d) Save Picture The waveform interface image can be saved to a USB flash drive, but can t be recalled. You can open these using adequate computer software. Option Setting Description Type Pictures Menu for the Storage/Recall of waveform interface image. Print Key Save Print Picture Save Picture When the oscilloscope is connected to a printer and the Back USB option is set to Printer, select Print Picture and press the PRINT button to print the screen image. When the USB flash drive is inserted in the USB Host interface (the USB flash drive open status icon will be displayed at the top of the screen), select Save picture and press the Save knob to enter the Save/Recall interface. Go to the Save/Recall interface. Follow these steps 1. Select the screen image that you want. 2. Press SAVE/RECALL to enter SAVE/RECALL menu. 3. Press Type to select Pictures. 4. Insert the USB flash drive. 5. Press the Print Key button to select Save Picture. 6. Press Save then enter the Save/Recall interface. 7. Create the picture name then press the Confirm button. 8. Press SAVE/RECALL before removing the USB drive. 56 Dual-Channel Digital Oscilloscopes
STORAGE System (cont d) Save / Recall Reference Waveform The oscilloscopes can store two reference waveforms to non volatile memory. The oscilloscope can display reference waveforms at a time. Reference waveforms are not adjustable, but the oscilloscope displays the horizontal and vertical scales at the bottom of the screen. Option Setting Description Type CSV Menu storing CSV files to a USB flash drive. Data Depth Para Save Save Displayed Maximum On Off Set to store displayed waveform data to CSV file. Set to store maximum waveform data to CSV file. Set whether to store parameters to CSV file or not. Enter the Save / Recall interface. Follow these steps 1. Press the SAVE/RECALL button to enter SAVE/RECALL menu. 2. Press Type to select CSV. 3. Insert the USB flash drive. 4. Press Data Depth to select Displayed or Maximum. 5. Press Para Save to select On or Off. 6. Press Save then enter the Save/Recall interface 7. Create a file name then press Confirm (for about five seconds). 8. Press SAVE/RECALL before removing the USB drive. Dual-Channel Digital Oscilloscopes 57
UTILITY System (cont d) UTILITY System Press the UTILITY button. Utility System function menu 1 Option Setting Description System Status Sound Counter Language On Off Simplified Chinese Traditional Chinese English Arabic French German Russian Spanish Portuguese Japanese Korean Displays a summary of the oscilloscope settings. Open the key-press voice. Close the key-press voice. Turn on Frequency Counter Turn off Frequency Counter. Select interface language. 58 Dual-Channel Digital Oscilloscopes
UTILITY System (cont d) Utility System function menu 2 Option Setting Description DO self Cal Do Self Test Screen Test Keyboard Test Auto self calibration Run the screen detect program Run the keyboard detect program Print Setup LED Test Run the dot lighting detect program. Enter the print setup menu to set print options. Back USB Printer The oscilloscope is connected to the printer via a USB cable. When you execute print function, please select Printer. The print icon will be displayed at the top of the screen. Computer The oscilloscope is connected to the computer via a USB cable. When you execute the EasyScope software, select Computer. The computer icon will be displayed on the screen. Dual-Channel Digital Oscilloscopes 59
UTILITY System Utility System function menu 3 Option Setting Description Update firmware Pass/Fail Record IO Setting You can update the oscilloscope using a USB flash Driver. Press this button to enter the Pass/Fail menu. Press this button to enter the waveform record menu. Press this button to enter the IO Setting menu. IO Setting function menu Option Setting Description Baud 300 2400 4800 9600 19200 38400 Set up band rate. 60 Dual-Channel Digital Oscilloscopes
UTILITY System (cont d) Utility System function menu 4 Option Setting Description Screensaver 1 min 2 min 5 min 10 min 15 min 30 min 1 hour 2 hours 5 hours off Set the time for the screen-saver Function checking To check that oscilloscope is running smoothly, proceed as follows: Probe comp. Set the switch to 1x on the probe and connect the probe to channel 1 on the oscilloscope. To do this, align the slot in the probe connector with the key on the CH 1 BNC, push to connect, and twist to the right to lock the probe in place. Connect the probe tip and reference lead to the PROBE COMP connectors. Press AUTO to show the 1KHz frequency and about 3V peak-peak square wave in couple seconds Press CH1 twice times to cancel channel 1, Press CH2 to change screen to channel 2, reset channel 2 as in steps 2 and 3. Dual-Channel Digital Oscilloscopes 61
UTILITY System (cont d) System Status Instructions Select System Status from the Utility Menu to display information pertaining to this oscilloscope. Print You can connect a printer using a USB cable. Print setup option function menu 1 Option Setting Description Ink Saver Layout On Off Portrait Landscape Prints the screen image on a white background when you select on. Print the colour screen image when off is selected. Printer output layout. Paper Size Print Key Default, L, 2L, Hagaki Postcard, Card Size, 10 x 15 cm, 4" x 6", 8" x 10", Letter, 11" x 17", A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, B0, B1, B2, B3, B4, B5, B6, B7, B8, B9, 89 mm, Roll (L), 127 mm Roll (2L), 100 mm Roll (4"), 210 mm Roll(A4) Print Key Print Picture Displays Settings available on your PictBridge compatible printer. Select Print Picture option when the oscilloscope is connected to a printer, press S/div to print the picture. Select Save Picture option when a USB drive is inserted, press the S/div knob to save the picture. 62 Dual-Channel Digital Oscilloscopes
UTILITY System (cont d) Print setup option function menu 2 Option Setting Description Image Size Paper Type Print Quality ID Print Default, 2.5x3.25 in, L (3.5x5 in), 4x6 in, 2L (5x7 in), 8x10 in, 4L (7 x 10 in), E, Card, Hagaki card, 6 x 8 cm, 7x10 cm, 9x13 cm, 10x15 cm, 13x18 cm, 15x21 cm, 18x24 cm, A4, Letter Default, plain, Photo, Fast Photo Default, Normal, Draft, Fine Default, On, Off Displays Settings available on your PictBridge compatible printer. Note The oscilloscope is designed to print to any PictBridge compatible printer. Refer to product documentation for your printer to determine if your printer is PictBridge compatible. Power on the oscilloscope, connect the oscilloscope to the printer with the USB cable, the power on the printer. Dual-Channel Digital Oscilloscopes 63
UTILITY System (cont d) Update Firmware Follow next steps The software can be updated directly using a USB Flash drive. 1. Insert the USB Flash Drive with firmware. 2. Press the UTILITY button. 3. Press Next Page to enter the third page of the Utility menu. 4. Press the Update Firmware option button. 5. Press the SINGLE button to start updating the software. 6. Turn off the oscilloscope and turn on it again, the software has been updated. The oscilloscope will execute a Do Self Cal after updating. 64 Dual-Channel Digital Oscilloscopes
UTILITY System (cont d) Pass / Fail The Pass/Fail function can monitor changes in signals and output pass or fail signals by testing whether the input signal is within the predefined mask or not. Pass/Fail function menu 1 Option Setting Description Enable Source Operate Msg Display On Off CH1 CH2 On Off Turn on Pass/Fail function. Turn off Pass/Fail function. Select Pass/Fail test on CH1. Select Pass/Fail test on CH2. Press to run the Pass/Fail test. Press to stop the Pass/Fail test. Turn on time information display for the waveform pass/fail. Turn off time information display for the waveform pass/fail. Dual-Channel Digital Oscilloscopes 65
UTILITY System (cont d) Pass / Fail function menu 2 Option Setting Description Output Stop On Output Mask Setting Return Pass Fail On Off Output when pass condition detected. Output when fail condition detected. Stop test on output Continue test on output. Press this button to enter the Mask Setting menu. Return to the Pass/Fail main menu. 66 Dual-Channel Digital Oscilloscopes
UTILITY System (cont d) Mask Setting Mask Setting function menu 1 Option Setting Description X Mask xdiv Y Mask ydiv Create Mask Location Internal External Turn the Universal knob to set the range of horizontal clearance to the waveform. <0.04div-4.00div> Turn the Universal knob to set the range of vertical clearance to the waveform. <0.04div- 4.00div> Create a test mask according to the above clearance data. Select where to store created mask. Mask Setting function menu 2 Option Setting Description Save Store created mask setting. Load Return Recall stored mask setting. Return to the main menu of mask setting. Dual-Channel Digital Oscilloscopes 67
UTILITY System (cont d) RUN Pass/Fail test Follow next steps 1. Press UTILITY button to enter the Utility menu. 2. Press Next Page to enter the third page of Utility menu 3. Press Pass/Fail to enter the Pass/Fail function menu. 4. Press Enable Test to select Open. 5. Press Source to select input signal channel. 6. Press Next Page to enter the second page of the Pass/Fail menu. 7. Press the Mask Setting button to enter the first page of Mask menu. 8. Press X Mask, turn the Universal knob to adjust the horizontal clearance. 9. Press Y Mask, turn the Universal knob to adjust the vertical clearance. 10. Press Create Mask to create mask and you can also can the next page of Mask menu to recall the stored mask. 11. Enter the second page of Pass/Fail function menu, press Output to set the output option. 12. Enter the first page of the Pass/Fail function menu, press Operate to select and to run the pass/fail test. Note The output signal is 3 V. When an error is detected, the output signal is 0 V during 125 µs. 68 Dual-Channel Digital Oscilloscopes
UTILITY System (cont d) Waveform Record The waveform recorder can record input waveform from CH1 and CH2, with a maximum record length of 2500 frames. Waveform recorder function menu Option Setting Description Mode Record Play Back Off Set Record function menu. Set Play Back function menu. Turn off waveform recorder menu. Source CH1 Select record source channel. CH2 P/F-OUT Interval Set time interval between record frames. turn the Univeral knob to adjust time interval between recorded frames. End Frame Operate (Record) (Stop) Set max number of recorded frames. select the Universal knob to adjust the max recorded frame. Press to start recording. Press to stop recording. Dual-Channel Digital Oscilloscopes 69
UTILITY System (cont d) Play Back Play back current record waveforms or saved record waveforms. Waveform play back function menu 1 Option Setting Description Mode Play Back Set the Play Back function menu. Operate (Run( Press to start playback playing. (Stop( Press to stop playing. Play Mode Set loop play mode. Set single time play mode. Interval Set time interval between frames. Waveform play back function menu 2 Option Setting Description Start Frame Curr_Frame End Frame Return Set start frame. Select current frame to be played. Set End frame. Press to return the waveform recorder main menu. 70 Dual-Channel Digital Oscilloscopes
UTILITY System (cont d) Recorder The waveform recorder is a type of seamless and no-gap real time recording of waveform. This means that oscilloscope can save and replay the waveforms it captured. This is similar to a waveform recording instrument, and the largest recording size for its internal memory is 6M Waveform recording function menu Option Record Replay Description Record the waveform persistently Replay recorded waveform. Option Return Set the recorder properly. Quit the recording function Dual-Channel Digital Oscilloscopes 71
UTILITY System (cont d) Waveform recalling function menu Option Stop Previous Next Return Description Quit the auto-recalled waveform, the waveform in EMS memory can then be observed by changing the time base, the waveform in EMS memory can be moved left and right Recalls previous waveform Plays the next recalled waveform Quit the recall interface 72 Dual-Channel Digital Oscilloscopes
UTILITY System (cont d) Recorder setting menu Option Setting Description Viewer Full Waveform full screen recording and channel Screen recalling Record Mode Replay Mode Return Split Roll Single Sweep One by One Roll Waveform recording on split screen and channel recalling. CH1 is displayed in the upper half-screen, CH2 is displayed in lower half-screen. The recorder saves the channel waveform continuously, the latter waveform will cover the former. The recorder will stop saving when its memory reaches 6M. when recalling, the screen waveform will refresh from left to right When recalling, screen waveform will refresh completely according to the capturing time of each frame Quit the recording setting interface Nota Recorder can only be used in scan mode. To display scan mode, see p. 21. Dual-Channel Digital Oscilloscopes 73