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Scientific SMO1000A-S User Manual

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Digital Oscilloscope
SMO1000A-S
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  • Page 1 Digital Oscilloscope SMO1000A-S User Manual...

  • Page 2: Copyright And Declaration

    Information in this manual supersedes all corresponding previous released material. Scientific continues to improve products and reserves rights to amend part or all of the specifications, procedures, equipment at any time without notice. Rev 1.00/ 0116 Scientific Mes-Technik Pvt.

  • Page 3: Table Of Contents

    To Specify Bandwidth Limit....................37 To Specify Probe Attenuation Factor ..................38 To Specify channel Input Impedance ..................38 To Specify Amplitude Unit ....................38 To Invert a Waveform ......................39 User Manual SMO1000A-S 3/176...
  • Page 4 IIC Trigger and Serial Decode ....................86 Setup for IIC Signals ....................86 IIC Triggering......................87 IIC Serial Decode ......................90 SPI Triggering and Serial Decode..................92 Setup for SPI Signals....................92 User Manual SMO1000A-S 4/176...
  • Page 5 To Adjust Waveform Intensity ....................129 To Adjust Grid Brightness ......................131 To Adjust Transparence ......................131 Save and Recall..........................132 Save Type..........................133 User Manual SMO1000A-S 5/176...
  • Page 6 Figure 1 Front View........................17 Figure 2 Top View ........................17 Figure 3 Adjust the Supporting Legs ..................18 Figure 4 To Connect to Power Supply ..................19 Figure 5 Function Inspection....................20 User Manual SMO1000A-S 6/176...
  • Page 7 Figure 45 SPI Decode function menu..................97 Figure 46 SPI Decode ......................97 Figure 47 UART SIGNAL Menu ....................99 Figure 48 BUS CONFIG Menu....................99 Figure 49 UART TRIG SET Menu .................... 100 User Manual SMO1000A-S 7/176...
  • Page 8 Figure 88 History ........................160 Figure 89 Send Wave Dialogue .................... .165 Figure 90 Save Waveform Successfully .................165 Figure 91 SETTING Function Menu ..................166 Figure 92 AWG Self Cal......................167 User Manual SMO1000A-S 8/176...

  • Page 9: Safety Information

    Avoid Circuit or Components Exposed Do not touch exposed contacts or components when the power is on. Use proper Fuse Use only the specified fuse. Do Not Operate Without Covers Do not operate the instrument with covers or panels removed. User Manual SMO1000A-S 9/176...
  • Page 10 To avoid the influence of dust and/or moisture in air, please keep the surface of device clean and dry. Handling Safety Please handle with care during transportation avoid damages buttons, knob interfaces and other parts on the panels. User Manual SMO1000A-S 10/176...

  • Page 11: Safety Terms And Symbols

    Indicates potential injuries or hazards that may happen. CAUTION Indicates potential damages to the instrument or other property that may happen. Symbols on the product. These symbols may appear on the product: Hazardous protective Earth Warning Test Power Switch Voltage Terminal Ground User Manual SMO1000A-S 11/176...

  • Page 12: Measurement Category

    Under +35℃:≤90% relative humidity +35℃ to +40℃: ≤60% relative humidity WARNING To avoid short circuit inside the instrument or electric shock, please do not operate in humid environment. Altitude Operating: less than 3 Km Non-operation: less than 15 Km User Manual SMO1000A-S 12/176...

  • Page 13: Installation Overvoltage Category

    To avoid damages to the surface of the instrument and probe, please do not use any corrosive liquid or chemical cleanser. Make sure that the instrument is completely dry before restarting it to avoid short circuits or personal injuries. User Manual SMO1000A-S 13/176...

  • Page 14: Document Overview

    Introduce how to set the system setup. System Setting Arbitrary Waveform Generation Introduce how to use Arbitrary waveform generation function. Default Introduce the Default setup of the oscilloscope Introduce how to deal with common failures of Troubleshooting the oscilloscope. User Manual SMO1000A-S 14/176...

  • Page 15: Quick Start

    The contents of this chapter: General Inspection Appearance and Dimensions To Prepare the Oscilloscope for Use Front Panel Overview Rear Panel Overview Front Panel Function Overview Back Panel Function Overview User Interface To Use the Security Lock User Manual SMO1000A-S 15/176...

  • Page 16: General Inspection

    In case of any damage, or defect, or failure, notify your sales representative. 3. Check the Accessories Please check the accessories according to the packing lists. If the accessories are incomplete or damaged, please contact your sales representative. User Manual SMO1000A-S 16/176...

  • Page 17: Appearance And Dimensions

    Appearance and Dimensions 340mm Figure 1 Front View Figure 2 Top View User Manual SMO1000A-S 17/176...

  • Page 18: To Prepare The Oscilloscope For Use

    To Adjust the Supporting Legs Adjust the supporting legs properly to use them as stands to tilt the oscilloscope upwards for stable placement of the oscilloscope as well as better operation and observation. Figure 3 Adjust the Supporting Legs User Manual SMO1000A-S 18/176...

  • Page 19: To Connect To Power Supply

    During the start-up process, the oscilloscope performs a series of self-tests and you can hear the sound of relay switching. After the self-test is finished, the welcome screen is displayed. User Manual SMO1000A-S 19/176...

  • Page 20: To Connect The Probe

    Compensation Signal Output Terminalǁ of the probe. 4. Press the Auto Setup softkey. 5. Observe the waveform on the display. In normal condition, the display should be a square waveform as shown in the figure below: Figure 5 Function Inspection User Manual SMO1000A-S 20/176...

  • Page 21: Probe Compensation

    Check the waveforms displayed and compare them with the following: Over Perfectly Under Compensated Compensated Compensated 4. Use a nonmetallic driver to adjust the low-frequency compensation adjustment hole on the probe until the waveform displayed is as the ―Perfectly compensatedǁ in the figure above. User Manual SMO1000A-S 21/176...

  • Page 22: Front Panel Overview

    LCD Display Trigger Control Universal Knob Vertical Control Common Function Menus Probe Comp Wave Gen Analog Channel Input Decode Control One- Button shortcut for Save Run/Stop Menu Softkey Auto Setup USB Host Trigger Control Power Button User Manual SMO1000A-S 22/176...

  • Page 23: Rear Panel Overview

    AC power input terminal. The power requirements of this oscilloscope are 100-240 V, 50/60/440 Hz. Use the power cord provided with the accessories to connect the instrument to AC power. Then, you can press the power key at the front panel to start the instrument. User Manual SMO1000A-S 23/176...

  • Page 24: Front Panel Function Overview

    Press down this knob to quickly turn on Zoom function. User Manual SMO1000A-S 24/176...

  • Page 25: Vertical

    : press the button to enter the MATH function menu. The oscilloscope provides addition, subtraction, multiplication, FFT, differential, integral and square root operations. : press the button to enter the REF function menu. A reference waveform can be displayed and compared against other waveforms. User Manual SMO1000A-S 25/176...

  • Page 26: Trigger

    Press down the knob to quickly reset the trigger level to center of the waveform. User Manual SMO1000A-S 26/176...

  • Page 27: Run Control

    : press the button to enter the DECODE function menu. The oscilloscope supports IIC, SPI, UART/RS232, CAN and LIN serial bus decode. : press the button to enable the Wave Gen function and open the waveform function menu. User Manual SMO1000A-S 27/176...

  • Page 28: Universal Knob

    After having entered the file system, turn the Universal Knob to select the desired file or directory. When inputting filename, turn the Universal Knob to select the desired character and the push the knob to confirm. User Manual SMO1000A-S 28/176...

  • Page 29: Menu

    CSV files to internal memory or USB flash driver. : Press the button to reset the oscilloscope to its default setup. The default voltage scale and time scale are respectively 1V/div and 1uS/div. User Manual SMO1000A-S 29/176...

  • Page 30: Help

    Press the any buttons for 2 seconds to enter the on line help. All submenus of every main menu have their help information. Figure 8 Help Message User Manual SMO1000A-S 30/176...

  • Page 31: User Interface

    2.0 ns to 50 s. 4. Trigger Position Turn the Horizontal Position Knob to adjust the parameter. Push the knob to set the value to 0 automatically. 5. Trigger Delay Label Indicate the trigger delay on the waveform. User Manual SMO1000A-S 31/176...
  • Page 32 Indicate that the USB Host is connected. Indicate that the LAN port is connected, Indicate it is disconnected. 12. Menu Display the corresponding function menu of the selected button. Press the corresponding softkey to set the oscilloscope. User Manual SMO1000A-S 32/176...

  • Page 33: To Use The Security Lock

    The method is as follows, align the lock with the lock hole and plug it into the lock hole vertically, turn the key clockwise to lock the oscilloscope and then pull the key out. Figure 10 To Use the Security Lock User Manual SMO1000A-S 33/176...

  • Page 34: To Set The Vertical System

    To Adjust the Vertical Scale To Adjust the Vertical Position To Specify Channel Coupling To Specify Bandwidth Limit To Specify Probe Attenuation Factor To Specify channel Input Impedance To Specify Amplitude Unit To Invert a Waveform User Manual SMO1000A-S 34/176...

  • Page 35: To Enable The Channel

    After the channel is turned on, modify the parameters such as the vertical scale, the horizontal time base and the trigger mode according to the input signal to make the waveform display easy to observe and measure. Note: to turn off the channel, press the channel button twice. User Manual SMO1000A-S 35/176...

  • Page 36: To Adjust The Vertical Scale

    Push the knob to set the vertical position of the channel waveform to zero. During the adjustment, the vertical position information Volts Pos displays at the bottom of the screen. The table below shows the range of vertical position according to the volt scale. User Manual SMO1000A-S 36/176...

  • Page 37: To Specify Channel Coupling

    Press the CH1 button on the front panel; then press the Probe softkey and turn the Universal Knob to select the desired value and push the knob to confirm. The default setup is 1X. User Manual SMO1000A-S 37/176...

  • Page 38: To Specify Probe Attenuation Factor

    Press CH1button on the front panel to enter the CH1 function menu. Press the Next Page softkey to enter the second page of the CH1 function menu.  Press the Unit softkey to select the desired unit V or A. The default setup is V. User Manual SMO1000A-S 38/176...

  • Page 39: To Invert A Waveform

    Press CH1button on the front panel to enter the CH1 function menu. Press the Next Page softkey to enter the second page of the CH1 function menu. Press the Invert softkey to turn on or off the invert display. User Manual SMO1000A-S 39/176...

  • Page 40: Set The Horizontal System

    Set the Horizontal System This chapter introduces how to set the horizontal system of the oscilloscope. The contents of this chapter: Adjust the Horizontal Scale Adjust the Trigger Delay Set Roll Mode Use the Zoom Function User Manual SMO1000A-S 40/176...

  • Page 41: Adjust The Horizontal Scale

    Roll mode, press the Run/Stop button again. Use Roll mode on low- frequency waveforms to yield a display much like a strip chart recorder. It allows the waveform to roll across the display. User Manual SMO1000A-S 41/176...

  • Page 42: Use The Zoom Function

    To change the time base of the normal window, turn off Zoom; then, turn the Horizontal Scale Knob. User Manual SMO1000A-S 42/176...

  • Page 43: To Set The Sample System

    This chapter introduces how to use the run control and set the sampling system of the oscilloscope. The contents of this chapter: Run Control Overview of Sampling To Specify Memory Depth To Select Sampling Mode Waveform Interpolation Method User Manual SMO1000A-S 43/176...

  • Page 44: Run Control

    When the oscilloscope triggers, the single acquisition is displayed and the oscilloscope is stopped (the Run/Stop button is illuminated in red). Press Single again to acquire another waveform User Manual SMO1000A-S 44/176...

  • Page 45: Overview Of Sampling

    , the equally spaced sampling frequency f must be greater than twice the maximum frequency f , in order to have the signal be uniquely reconstructed without aliasing. = Nyquist frequency (f ) = folding frequency User Manual SMO1000A-S 45/176...

  • Page 46: Sample Rate

    The most common aliasing is the jitter on fast edge. 3. Waveform Leakage: when the sample rate is too low, the waveform rebuilt from the sample data does not reflect all the actual signal information. User Manual SMO1000A-S 46/176...

  • Page 47: Oscilloscope Bandwidth And Sample Rate

    Nyquist frequency (f So, in practice, an oscilloscope's sample rate should be four or more times its bandwidth: = 4fBW. This way, there is less aliasing, and aliased frequency components have a greater amount of attenuation. User Manual SMO1000A-S 47/176...

  • Page 48: Select Memory Depth

    The maximum real-time sample rate is 1GSa/s. Press the RUN/STOP button to stop the sample, the oscilloscope will hold the last display. At this point, you can still use the vertical control and horizontal control to pan and zoom the waveform. User Manual SMO1000A-S 48/176...

  • Page 49: Select Waveform Interpolation Method

    When the sampling rate is 3 to 5 times the bandwidth of the system. Recommended sinx interpolation method. Figure 11 Display Type Set to Dots User Manual SMO1000A-S 49/176...
  • Page 50 Figure 12 x Interpolation Figure 13 Sinx Interpolation User Manual SMO1000A-S 50/176...

  • Page 51: Select Acquisition Mode

    In this mode, the oscilloscope samples the signal at equal time interval to rebuild the waveform. For most of the waveforms, the best display effect can be obtained using this mode. It is the default acquisition mode. Figure 14 Acquisition System User Manual SMO1000A-S 51/176...

  • Page 52: Peak Detect

    In this mode, the oscilloscope can display all the pulses with pulse widths at least as wide as the sample period. Figure 15 Pulse With 0.1% Duty, Normal Mode Figure 16 Pulse With 0.1% Duty, Peak Detect Mode User Manual SMO1000A-S 52/176...

  • Page 53: Average

    The available range of averages is from 4 to 1024 and the default is 16. When Average mode is selected, press Averages and turn the universal knob or press the softkey continually to set the desired average time. Figure 17 With Random Noise, Normal Mode User Manual SMO1000A-S 53/176...

  • Page 54: High Resolution

    This mode limits the oscilloscope's real- time bandwidth because it effectively acts like a low- pass filter. Note: “Average” and “High Res” modes use different averaging methods. The former uses “Waveform Average” and the latter uses “Dot Average” User Manual SMO1000A-S 54/176...

  • Page 55: Change The Horizontal Format

    X-Y function can be used to measure the phase deviation occurred when the signal under test passes through a circuit network. Connect the oscilloscope to the circuit to monitor the input and output signals of the circuit. User Manual SMO1000A-S 55/176...

  • Page 56: Use Sequence Mode

    Universal Knob and B is the maximal number that you can set under the time base. Do the following steps to replay the sequence waveform under history mode: Press the History softkey to enable HISTORY function . Figure 20 HISTORY Function Menu User Manual SMO1000A-S 56/176...
  • Page 57 4. Press the softkey to replay the waveform from the current frame to 1. 5. Press the softkey to stop replay. 6. Press the softkey to replay the waveform from the current frame to the last frame. User Manual SMO1000A-S 57/176...

  • Page 58: To Trigger The Oscilloscope

    These trigger types are edge, slope, pulse, video, window, interval, dropout, runt, pattern and serial trigger. This chapter will mainly introduce all these trigger functions which mentioned above in details and tell you how to set the trigger conditions to capture desired waveform. User Manual SMO1000A-S 58/176...
  • Page 59 The contents of this chapter: Trigger Source Trigger Mode Trigger Level Trigger Coupling Trigger Holdoff Noise Rejection Trigger Type Edge Trigger Slope Trigger Pulse Trigger Video Trigger Window Trigger Interval trigger DropOut Trigger Runt Trigger Pattern Trigger User Manual SMO1000A-S 59/176...

  • Page 60: Trigger Source

    (power supply device). For example, it is mainly used in related measurement of the power industry to stably trigger the waveform output from the transformer of a transformer substation. Note: to select stable channel waveform as the trigger source to stabilize the display User Manual SMO1000A-S 60/176...

  • Page 61: Trigger Mode

    In the Single trigger mode, the oscilloscope waits for a trigger and displays the waveform when the trigger condition is met and then stops. The Single trigger mode is appropriate when: To capture single event or aperiodic signal. To capture burst or other unusual signals. User Manual SMO1000A-S 61/176...

  • Page 62: Trigger Level

    Use LF Reject coupling to get a stable edge trigger when your waveform has low frequency noise. HF Reject: reject the high frequency components (higher 1.27MHz) Note: trigger coupling has nothing to do with the channel coupling User Manual SMO1000A-S 62/176...

  • Page 63: Trigger Holdoff

    Press the Setup button on the front panel, and then press the Noise Reject softkey continually to set the option to On or Off to turn on or off the noise rejection function. User Manual SMO1000A-S 63/176...
  • Page 64 2. Remove the noise from the trigger path by setting trigger coupling to LF Reject, HF Reject or turning on Noise Reject. 3. Set the Acquisition option to Average to reduce noise on the displayed waveform. User Manual SMO1000A-S 64/176...

  • Page 65: Trigger Type

    Trigger Type The oscilloscope provides abundant advanced trigger functions, including various serial bus triggers. Edge trigger Slope trigger Pulse trigger Video trigger Window trigger Interval trigger DropOut trigger Runt trigger Pattern trigger User Manual SMO1000A-S 65/176...

  • Page 66: Edge Trigger

    5. Turn the Trigger Level Knob to adjust the trigger level to obtain stable trigger. Figure 23 Edge Trigger Note: Press the Auto Setup button will set the trigger type to Edge and slope to rising. User Manual SMO1000A-S 66/176...

  • Page 67: Slope Trigger

    The lower trigger level cannot be upper than the upper trigger level. In the trigger state message box, L1 means the upper trigger lever while L2 means the lower trigger level. User Manual SMO1000A-S 67/176...
  • Page 68 >< (outside a range of time value): trigger when the positive or negative slope time of the input signal is greater than the specified upper limit of time and lower than the specified lower limit of time value. User Manual SMO1000A-S 68/176...

  • Page 69: Pulse Trigger

    > (greater than a time value): trigger when the positive or negative pulse time of the input signal is greater than the specified time value. For example, for a positive pulse, if you set t (pulse real width) >100ns, the waveform will trigger. User Manual SMO1000A-S 69/176...
  • Page 70 > < (outside a range of time value): trigger when the positive or negative pulse time of the input signal is greater than the specified upper limit of time and lower than the specified lower limit of time value. Figure 25 Pulse Trigger User Manual SMO1000A-S 70/176...

  • Page 71: Video Trigger

    25Hz, 30Hz, 50Hz, 60Hz Of Lines 300~2000 Of Fields 1, 2, 3, 4 Interlace 1:1, 2:1, 4:1, 8:1 Trigger Position Line Field (line value)/1 (line value)/2 (line value)/3 (line value)/4 (line value)/5 (line value)/6 (line value)/7 (line value)/8 User Manual SMO1000A-S 71/176...
  • Page 72 5. Press the Sync softkey and set the option to Select; press the Line softkey and then turn the universal to select 022 and push the knob to confirm; press the Field softkey and then turn the Universal Knob to select 1 and push the knob to confirm User Manual SMO1000A-S 72/176...
  • Page 73 Press the Type softkey to select Select or Any. If the Type option set to Select, press the Line softkey; turn the Universal Knob to select the desired value. Press the Field softkey; turn the Universal Knob to select the desired value. User Manual SMO1000A-S 73/176...

  • Page 74: Window Trigger

    The Lower trigger level cannot be upper than the upper trigger level. In the trigger state message box, L1 means the upper trigger level while L2 means the lower trigger level. User Manual SMO1000A-S 74/176...
  • Page 75 In the trigger state message box, C means Center, the center value of the lower and upper trigger levels; D means Delta, the difference between the lower (or upper) trigger level and the trigger level center. User Manual SMO1000A-S 75/176...
  • Page 76 Figure 28 Relative Window Trigger User Manual SMO1000A-S 76/176...

  • Page 77: Interval Trigger

    6. Press the Time Setting softkey (<, >, < >, ><), turn the Universal Knob to select the desired value. User Manual SMO1000A-S 77/176...
  • Page 78 Figure 29 Interval Trigger User Manual SMO1000A-S 78/176...

  • Page 79: Dropout Trigger

    Select channel with signal input as trigger source to obtain stable trigger. 4. Press the Slope softkey to select rising or falling edge. 5. Press the OverTime Type softkey to select Edge. 6. Press the Time softkey; turn the universal to select the desired value. User Manual SMO1000A-S 79/176...
  • Page 80 4. Press the Slope softkey to select rising or falling edge. 5. Press the OverTime Type softkey to select State. 6. Press the Time softkey; turn the Universal Knob to select the desired value. Figure 31 State DropOut Trigger User Manual SMO1000A-S 80/176...

  • Page 81: Runt Trigger

    7. Press the Next Page softkey to enter the second page of the TRIGGER system function menu. Press the Lower Upper softkey to select Lower or Upper trigger level, and the turn the Universal Knob to set the position. User Manual SMO1000A-S 81/176...
  • Page 82 Figure 32 Runt Trigger User Manual SMO1000A-S 82/176...

  • Page 83: Pattern Trigger

    AND, OR, NAND or NOR. 6. Press the Limit Range softkey; then turn the Universal Knob to select the desired option. < (Less Than) – when the pattern is present for less than a time value. User Manual SMO1000A-S 83/176...
  • Page 84 <> (Out of Range) – when the pattern is present for a time outside of range of values. 7. Press the Holdoff Close softkey to turn on the Holdoff function; then turn the Universal Knob to select the desired value. Figure 33 Pattern Trigger User Manual SMO1000A-S 84/176...

  • Page 85: Serial Trigger And Decode

    This chapter introduces how to set every kind of serial trigger and decode in details. The contents of this chapter: IIC Trigger and Decoder SPI Trigger and Decoder UART/RS232 Trigger and Decoder CAN Trigger and Decoder LIN Trigger and Decoder User Manual SMO1000A-S 85/176...

  • Page 86: Iic Trigger And Serial Decode

    Data must be stable during the whole high clock cycle or it will be interpreted as a start or stop condition (data transitioning while the clock is high). User Manual SMO1000A-S 86/176...

  • Page 87: Iic Triggering

    Limit Range softkey and the Data1 softkey. When this event occurs, the oscilloscope will trigger on the clock edge for the Ack bit after the data byte. This data byte does not need to occur directly after the control byte. User Manual SMO1000A-S 87/176...
  • Page 88 7- bit addressing mode on the 34th clock edge if all bits in the pattern match. Data2 is available. For triggering purposes, a restart is treated as a start condition User Manual SMO1000A-S 88/176...
  • Page 89 Press Address to set the SDA address length 7bit or 10 bit. Press Byte Length softkey and turn the Universal Knob to select the byte length. The range of the Byte Length is 1 to 12. User Manual SMO1000A-S 89/176...

  • Page 90: Iic Serial Decode

    6. Press the Scroll softkey and the Lines softkey to set the position of the cursor and the line number of the list with the Universal Knob. The range of the Lines is 1 to 7. Figure 37 IIC Decode Result User Manual SMO1000A-S 90/176...
  • Page 91 In addition to the standard Time column, the IIC Lister contains these columns: NO— frame number from left to right Address — colored blue for writes, yellow for reads. R/W—yellow R for read, dark green W for write and black X for miss.. Data — data bytes. User Manual SMO1000A-S 91/176...

  • Page 92: Spi Triggering And Serial Decode

    This determines which clock edge the oscilloscope will use to latch the serial data. 6. Press the UP softkey to return to the SPI SINGAL menu. 7. Press the MISO softkey to enter the MISO menu. Figure 40 MOSI Menu User Manual SMO1000A-S 92/176...
  • Page 93 CLK Timeout — Select Clock Timeout in the Cs Type softkey, then select the Limit softkey and turn the Universal Knob to set the minimum time that User Manual SMO1000A-S 93/176...
  • Page 94 12. Press the Idle Level softkey to set idle level to High or Low according to the input signal. 13. Press the Bit Order softkey to set the bit order to LSB or MSB according to the input signal. User Manual SMO1000A-S 94/176...

  • Page 95: Spi Triggering

    8. Press the Bit Order softkey to set the bit order to LSB (Least significant bit first) or MSB (Most significant bit first) which used when displaying data in the serial decode waveform and in the Lister. User Manual SMO1000A-S 95/176...
  • Page 96 Figure 44 SPI Trigger User Manual SMO1000A-S 96/176...

  • Page 97: Spi Serial Decode

    6. Press the Scroll softkey and the Lines softkey to set the position of the cursor and the line number of the list with the Universal Knob. The range of the Lines is 1 to 7. Figure 46 SPI Decode User Manual SMO1000A-S 97/176...
  • Page 98 Interpreting SPI Lister Data In addition to the standard Time column, the SPI Lister contains these columns: NO— frame number from left to right. MISO — Data for MISO decode. MOSI — Data for MOSI decode. User Manual SMO1000A-S 98/176...

  • Page 99: Uart/Rs232 Triggering And Serial Decode

    Stop Bit—Set the number of stop bits in the UART/RS232 words to match your device under test. Data Length— Set the number of bits in the UART/RS232 words to match your device under test (selectable from 5- 8 bits). User Manual SMO1000A-S 99/176...

  • Page 100: Uart/Rs232 Triggering

    Use the Value softkey to choose the data value for your trigger comparison. This works in conjunction with the Compare Type softkey. The range of the Value is ox00 to oxff. Figure 50 UART Trigger User Manual SMO1000A-S 100/176...

  • Page 101: Uart/Rs232 Serial Decode

    5. Press the Scroll softkey and the Lines softkey to set the position of the cursor and the line number of the list with the Universal Knob. The range of the Lines is 1 to 7. Figure 52 UART Decode User Manual SMO1000A-S 101/176...
  • Page 102 In addition to the standard Time column, the UART/RS232 Lister contains these columns: Rx — Receive data. Tx — Transmit data. Rx err— Parity error or unknown error when receiving data. Tx err— Parity error or unknown error when transmit data. User Manual SMO1000A-S 102/176...

  • Page 103: To Save Reference Waveform

    REF waveform. The contents of this chapter: To Save REF Waveform to Internal Memory To Display REF Waveform To Adjust REF Waveform Display To Clear REF Waveform Display User Manual SMO1000A-S 103/176...

  • Page 104: To Save Ref Waveform To Internal Memory

    3. Press the Display softkey to select On to display the REF waveform on the screen. Only saved location can be displayed. The oscilloscope can display all four reference waveforms at a time. User Manual SMO1000A-S 104/176...

  • Page 105: To Adjust Ref Waveform Display

    To Clear REF Waveform Display The oscilloscope does not have the ―Clearǁ option under the REF WAVE function menu. To clear the appointed reference waveform, you can save a new reference waveform to the same location to cover it. User Manual SMO1000A-S 105/176...

  • Page 106: To Make Math Operation

    2 or W (Volt-Amp) multiplication (*) division (/) None or S dBVrm, Vrm, dBArms, Arms differential (d/dt) V/S or A/S (V/second or A/second) integral (∫dt) VS or AS (V/second or A/second) ∧ ∧ 1/2 or A square root (√) User Manual SMO1000A-S 106/176...

  • Page 107: Math Operators

    The resulting math waveform is displayed in white and labeled with ―Mǁ. 4. If you want to invert the math waveform, press the Invert button and set the option to On to invert the display of the math waveform. User Manual SMO1000A-S 107/176...

  • Page 108: Multiplication And Division

    The resulting math waveform is displayed in white and labeled with ―Mǁ. 4. If you want to invert the math waveform, press the Invert button and set the option to On to invert the display of the math waveform. User Manual SMO1000A-S 108/176...

  • Page 109: Fft Operation

    The readout for the horizontal axis changes from time to frequency (Hertz) and the vertical readout changes from volts to dB. FFT operation can facilitate the following works: Measure harmonic components and distortion in the system Measure the characteristics of the noise in DC power Analyze vibration User Manual SMO1000A-S 109/176...
  • Page 110 7. Press the Display softkey to select Split or Full Screen display mode. Split: the source channel and the FFT operation results are displayed separately. The time domain and frequency domain signals are displayed clearly User Manual SMO1000A-S 110/176...
  • Page 111 You can find the frequency value at the first occurrence of the waveform maximum by using the X at Max Y measurement. Note: please refer to the cursors chapter to obtain the method of using cursors. User Manual SMO1000A-S 111/176...

  • Page 112: Math Function Operation

    You can use differentiate to measure the instantaneous slope of a waveform. For example, the slew rate of an operational amplifier may be measured using the differentiate function Note: Because differentiation is very sensitive to noise, it is helpful to set acquisition mode to Average. User Manual SMO1000A-S 112/176...

  • Page 113: Integrate

    Small DC offset in the integrate function input (or even small oscilloscope calibration errors) can cause the integrate function output to "ramp" up or down. This DC offset correction lets you level the integrate waveform. Figure 56 Integral without Offset User Manual SMO1000A-S 113/176...

  • Page 114: Square Root

    Figure 57 Square Root Square root (√) calculates the square root of the selected source. Where the transform is undefined for a particular input, holes (zero values) appear in the function output. Figure 58 Square Root User Manual SMO1000A-S 114/176...

  • Page 115: To Make Cursors Measurements

    Y1 Y2 (△Y). When set cursor type to Y1-Y2, use Universal Knob will move the Y1 and Y2 cursors together. The value under the menu option is the difference between the Y1 and Y2 cursors. User Manual SMO1000A-S 115/176...

  • Page 116: To Make Cursor Measurements

    Display/Persist button and go to the second page, press the Transparence (20% to 80%) softkey and then turn the Universal Knob to adjust the transparence to the desired value. Cursor examples: Use cursors to measure pulse width: Figure 59 Measure Pulse Width User Manual SMO1000A-S 116/176...

  • Page 117: To Make Measurements

    All Measure submenu. Set the Delay option to On to display all the delay parameters. The contents of this chapter: Type of measurements • Voltage Measurements • Time Measurements • Delay Measurements To make automatic measurement To clear measurements To make all parameters measurement User Manual SMO1000A-S 117/176...

  • Page 118: Type Of Measurement

    12. Crms: The true Root Mean Square voltage of the first cycle in the waveform. 13. Overshoot: Overshoot is distortion that follows a major edge transition expressed as a percentage of Amplitude. ROV means rising edge overshoot and FOV means falling edge overshoot. User Manual SMO1000A-S 118/176...
  • Page 119 Amplitude. The X cursors show which edge is being measured (edge closest to the trigger reference point). Figure 62 Preshoot 15. Level@X: the voltage value between the trigger point and the vercital position of the channel User Manual SMO1000A-S 119/176...

  • Page 120: Time Measurements

    9. - Duty: the ratio of the negative pulse width to the period. 10. Delay：Time from the trigger to the first transition at the 50% crossing. 11. Time@Level：Time from trigger of each transition at a specific level and slope. User Manual SMO1000A-S 120/176...

  • Page 121: Delay Measurements

    8. LFR: The time between the last falling edge of source 1 and the last rising edge of source 2 of 50 voltage level. 9. LFF: The time between the last falling edge of source 1 and the last falling edge of source 2 of 50 voltage level. User Manual SMO1000A-S 121/176...

  • Page 122: To Make Automatic Measurement

    The measurement display area can display 5 measurement parameters at most, and the measurements will arrange according to the selecting order. If add a sixth measurement parameter, it will delete the first measurement. Figure 64 Select the Measurement Parameter User Manual SMO1000A-S 122/176...
  • Page 123 Figure 65 Added the Measurement Note: if the parameter does not match the measure condition, it will display as “****”. User Manual SMO1000A-S 123/176...

  • Page 124: To Clear Measurement Parameters

    1. Press the Measure button on the front panel to enter the MEASURE function menu. 2. Press the All Measure softkey to select On. Press the Source softkey to select the measure source (CH1, CH2, MATH, REFA, REFB). User Manual SMO1000A-S 124/176...

  • Page 125: Display Setting

    The contents of this chapter: To Set Display Type To Set Color Display To Set and Clear Persistence To Clear the Display To Select Grid Type To Adjust the Waveform Intensity To Adjust the Grid Brightness The Adjust the Transparence User Manual SMO1000A-S 125/176...

  • Page 126: To Set Display Type

    Dots: display the sample points directly. You can directly view each sample point and use the cursor to measure the X and Y values of the sample point. Figure 67 Vectors Display Figure 68 Dots Display User Manual SMO1000A-S 126/176...

  • Page 127: To Set Color Display

    Infinite —select ―Infiniteǁ Results of previous acquisitions are never erased. Use infinite persistence to measure noise and jitter, to see the worst- case extremes of varying waveforms, to look for timing violations, or to capture events that occur infrequently. User Manual SMO1000A-S 127/176...

  • Page 128: To Clear The Display

    To clear the display Press the Display button on the front panel to enter the DISPLAY function menu; press the Clear Display softkey to clear all the waveforms displaying on the screen and acquire and display new waveforms. User Manual SMO1000A-S 128/176...

  • Page 129: To Select Grid Type

    The default value is 50%, and the range is from 0% to 100%. Increasing the intensity lets you see the maximum amount of noise and infrequently occurring events. Reducing the intensity can expose more detail in complex signals as shown in the following figures. User Manual SMO1000A-S 129/176...
  • Page 130 Figure 71 Intensity Set to 100% Figure 72 Intensity Set to 10% Note: Waveform intensity adjustment affects analog channel waveforms only (not math waveforms, reference waveforms, digital waveforms, etc.). User Manual SMO1000A-S 130/176...

  • Page 131: To Adjust Grid Brightness

    2. Press the Next Page softkey to go to the second page of the Display function menu. 3. Press the Transparence softkey; and then turn the Universal Knob to select the desired value. The default value is 50%, and the range is from 0% to 100%. User Manual SMO1000A-S 131/176...

  • Page 132: Save And Recall

    The oscilloscope provides an USB Host interface on the front panel to connect an USB device for external storage. The contents of this chapter Save Type Internal Save and Recall External Save and Recall Disk Management User Manual SMO1000A-S 132/176...

  • Page 133: Save Type

    Set the save type to CSV, and set the Para Save option to On or Off to turn on or of the parameters storage function. 6. Matlab The oscilloscope saves the waveform data in external memory in “*.DAT” format. The recall of matlab file is not supported. You can analyze it by matlab software. User Manual SMO1000A-S 133/176...

  • Page 134: Internal Save And Recall

    Recall softkey to recall the setup, and it will pop-out the message “Read Data Success!” Note: if need to delete a setup file in the memory, please save a new setup to the same location to overwrite it. User Manual SMO1000A-S 134/176...

  • Page 135: External Save And Recall

    Figure 73 SAVE/RECALL File System 4. Use the Universal Knob to select the desired location. File can be stored under the root directory or in a certain folder under the root directory of the USB storage device. User Manual SMO1000A-S 135/176...
  • Page 136 Refer to the descriptions in ―To Create a new file or fold” to create a new file name. Figure 75 File Name Dialogue 6. Press the Enter softkey to save the current waveform to the external USB storage device, User Manual SMO1000A-S 136/176...
  • Page 137 8. Press the Type softkey to select Waveforms or Setup 9. Press the Recall softkey to enter the SAVE/RECALL file system. 10. Turn the Universal Knob to select the file to be recalled, press the Load softkey to recall the waveform or setup. User Manual SMO1000A-S 137/176...

  • Page 138: Disk Management

    USB storage device. Before using external disk, make sure that the USB storage device is connected correctly. Execute the following operations through the disk management menu: To Create a New File or Folder To Delete a File or Folder To Rename a File or Folder User Manual SMO1000A-S 138/176...

  • Page 139: To Create A New File Or Folder

    Enter softkey or the Universal Knob to set it to “aA” to set the input method to lower case. 9. Use the method in step 8 to enter the characters “ab”. 10. Press the Enter softkey to ensure the file name. You will see a file or folder named “SMO1202Axy”. User Manual SMO1000A-S 139/176...

  • Page 140: To Delete A File Or Folder

    4. Press the Next Page softkey to go to the second page of the SAVE/RECALL function menu. 5. Press the Rename softkey, and then refer to the descriptions in “To Create a new file or fold” to create a new file name. User Manual SMO1000A-S 140/176...

  • Page 141: System Function Setting

    To do Pass/Fail Test To Use the History Function To Print the Screen Image To Enable Quick-Cal To Update Firmware or configuration To Do self Test To Specify the Screen Saver Time Option Management To Set and Display Data/Time User Manual SMO1000A-S 141/176...

  • Page 142: To View The System Status

    Hardware Version: list the current hardware version of the oscilloscope. Serial NO.: list the serial number of the oscilloscope. Scope ID: display the scope identification of the oscilloscope. Figure 77 System Status 3. Press the Single button on the front panel to exit. User Manual SMO1000A-S 142/176...

  • Page 143: To Do Self Calibration

    During the calibration, most of the keys are disabled. 4. When the self calibration program is finished, it will pop-out the message “press Run/Stop key to exit”. Press the Run/Stop button on the front panel to exit the calibration interface. User Manual SMO1000A-S 143/176...

  • Page 144: To Enable Or Disable The Sound

    2. Press the Language softkey; and then turn the Universal Knob to select the desired language. Then push down the knob to select the language. The languages that currently available are Simplified Chinese, Traditional Chinese, English, French, German, Spanish, Russian, Italian, and Portuguese. User Manual SMO1000A-S 144/176...

  • Page 145: To Do Pass/Fail Test

    [TRIG OUT] connector at the rear panel. Pass/Fail test operates on displayed analog channels; it does not operate on channels that are not displayed. Figure 79 Pass/Fail Test User Manual SMO1000A-S 145/176...

  • Page 146: To Set And Perform Pass/Fail Test

    14. Press the Next Page softkey to return to the first page of the PASS/FAIL function menu. 15. Press the Operate softkey to perform the test. : Current state is stop; press the softkey to start the pass/fail test. : Current state is running; press the softkey to stop the pass/fail test. User Manual SMO1000A-S 146/176...

  • Page 147: To Save And Recall Test Mask

    6. Press the Location softkey to select Internal. 7. Press the Load softkey to recall the saved interval memory. 8. A few second later, it will pop-out the message “Read Data Success!” and the saved mask will be displayed on the screen. User Manual SMO1000A-S 147/176...
  • Page 148 6. Press the Location softkey to select External 7. Press the Load softkey to enter the file SAVE/RECALL system. 8. Select the desired test mask file with a RGU postfix using the Universal Knob; and then press the Load softkey. User Manual SMO1000A-S 148/176...

  • Page 149: Io Set

    Press the Utility button on the front panel to enter the UTILITY function menu. Press the IO Set softkey to enter the I/O SET function menu. Press the USB Device softkey to select Printer. Press the Print button on the front panel to print the screen image. User Manual SMO1000A-S 149/176...

  • Page 150: To Set The Lan

    Press the F1 softkey to go to the next line. Press the Save/Recall softkey to save the current setting. Press the Single button to exit the setting interface. Use EasyScopeX or NI Vista to communicate with the oscilloscope. User Manual SMO1000A-S 150/176...

  • Page 151: To Set Aux Output

    110k wfs/s. Pass/Fail: if this type is selected, the oscilloscope will output a pulse signal when failed waveforms are detected. This signal can be connected to other control systems to conveniently view the test results. User Manual SMO1000A-S 151/176...

  • Page 152: To Enable Quick-Cal

    Also, when the Quick-Cal is On and the current vertical scale is 2mV or 5mV of any channel, the oscilloscope will perform the quick calibration procedure if the operating temperature changes by more than 2 degree. User Manual SMO1000A-S 152/176...

  • Page 153: To Update Firmware And Configuration

    30 seconds. 8. After finish the update, the screen will pop-out the message “Update success, please restart the DSO”, and you will heard a sound of buzzer. 9. Restart the oscilloscope to finish the configuration update. User Manual SMO1000A-S 153/176...

  • Page 154: Do Self Test

    The screen displays green, blue and red again. It is easy to check chromatic aberration, stain and scratch of the screen under the condition. 7. Press the Run/Stop button on the front panel to exit the screen test program. User Manual SMO1000A-S 154/176...

  • Page 155: Keyboard Test

    Keys test: the first time to press the key to light it up, and a second press to die out. Test every button randomly. 7. Press the Run/Stop button 3 times to exit the keyboard test program. User Manual SMO1000A-S 155/176...

  • Page 156: Led Test

    Then the other button lights will be lighted one by one. At last all the lights will be lighted at the same time. 7. Press the Run/Stop button to exit the LED test program. User Manual SMO1000A-S 156/176...

  • Page 157: To Specify Screen Saver Time

    The screen saver time can be set to 1min, 5min, 10min, 30min, and 1hour. Also you can select Off to turn off the screen saver function Figure 84 Screen Saver Interface 5. Press the any button on the front to exit the screen saver program. User Manual SMO1000A-S 157/176...

  • Page 158: Option Management

    Push down the Universal Knob or press the Enter softkey to input the character. Press the Delete softkey to delete the incorrect character. When the Switch To softkey is set to License: User Manual SMO1000A-S 158/176...
  • Page 159 Press the Delete softkey to delete the incorrect character. Press the Information softkey to view the option information. Figure 87 Option Information User Manual SMO1000A-S 159/176...

  • Page 160: To Use The History Function

    So if you want to get the maximal frames, please wait for enough time for acquisition. The table shows the maximal frame according to the sampling rate and current User Manual SMO1000A-S 160/176...
  • Page 161 4. Press the softkey to replay the waveform from the current frame to 1. 5. Press the softkey to stop replay. 6. Press the softkey to replay the waveform from the current frame to the last frame. User Manual SMO1000A-S 161/176...

  • Page 162: Arbitrary Waveform Generator

    It provides sine, square, ramp, pulse, DC, noise, cardiac, Gauss pulse, exp rise, exp fall and Arbitrary waveforms. The contents of this chapter: To Set Wave Type and Parameters To Output Arbitrary Waveform To Set Output Load To Recover Default Setup To Do AWG Self Cal User Manual SMO1000A-S 162/176...

  • Page 163: To Set Wave Type And Parameters

    Frequency Fine/ Period/ Period Fine/ Amplitude/ Amplitude Ramp 1uHz~300KHz 4mV~6V ± 3.0V Fine/ High-Level/ High-Level-Fine/ Offset/ Offset Fine/ Low-Level/ Low-Level-Fine/ Symmetry Universal Knob adjust Frequency/ pulse Frequency Fine/ Period/ Period 1uHz~10MHz 4mV~6V ± 3.0V /Fine/ Amplitude/ Amplitude Fine/ User Manual SMO1000A-S 163/176...
  • Page 164 Frequency/ Frequency Fine/ Period/ Period /Fine/ Amplitude/ Amplitude 1uHz~5MHz 4mV~6V ± 3.0V Fai; Fine/ High-Level/ High-Level-Fine/ Offset/Offset Fine/ Low-Level/ When the Output Load is set to 50 ， all the value will be the half. User Manual SMO1000A-S 164/176...

  • Page 165: To Output Arbitrary Waveform

    8. If you want to delete the arbitrary waveform, press the Delete softkey. 9. Press the Setting softkey to enter the SETTING function menu. 10. Press the Output Load softkey to select High-Z or 50 . User Manual SMO1000A-S 165/176...

  • Page 166: To Set Output Load

    1. Press the Wave Gen button on the front panel to enter the WAVEFORM function menu. 2. Press the Setting softkey to enter the SETTING function menu. 3. Press the Default softkey to recover the default values of Wave Gen (Sine, 1.000 KHz, 4.000Vpp, 0.0mVdc). User Manual SMO1000A-S 166/176...

  • Page 167: Awg Self Cal

    3. Press the AWG Self Cal softkey to perform AWG self calibration program. Figure 92 AWG Self Cal 4. When the self calibration program is finish, press the Run/Stop button on the front panel to exit the interface according to the information on the screen. User Manual SMO1000A-S 167/176...

  • Page 168: Default Setup

    Offset Coupling BW Limit Full Adjust Coarse Probe Impedance Unit Invert Acquire Acquisition Normal Sinx/x Sinx Mem Depth 14 Mpts Trigger Type Edge Source Slope Rising Holdoff Coupling Noise Rejest Mode Auto Display Type Vectors Color User Manual SMO1000A-S 168/176...
  • Page 169 Utility IO Set USB Device USBTMC Aux Output Trig Out Sound Sound Pass/Fail Enable Test Source Operate Mes Display X Mask Y Mask Location Internal Fail To Stop Output System Setup Quick-Cal Screen Saver 30min Math User Manual SMO1000A-S 169/176...
  • Page 170 0 V^2 Source A Source B Invert V/div 1.0/div offset Source Window Hanning Horizontal Vertical Scale 20 dBVrms Display Split Horizontal Scale 100MHz d/dt Source Vertical Scale 1.00 (MV/S)/div Vertical Offset 0.2 div ∫dt Source Offset User Manual SMO1000A-S 170/176...
  • Page 171 Serial 1 Serial Display List Serial 2 Serial Display List Threshold 1.60V Threshold 1.60V 7 位 Address Threshold 1.60V Edge Select Rising MISO Threshold 1.60V MOSI Threshold 1.60V CS Type Idle Level Bit Order Data Length User Manual SMO1000A-S 171/176...
  • Page 172 Sine Output Load High-Z Sine Frequency 1 KHz Amplitude 4 Vpp Offset 0 Vdc Square Frequency 1 KHz Amplitude 4 Vpp Offset 0 Vdc Duty Ramp Frequency 1 KHz Amplitude 4 Vpp Offset 0 Vdc Symmetry User Manual SMO1000A-S 172/176...
  • Page 173 Offset 0 Vdc Gaus Pulse Frequency 1 KHz Amplitude 4 Vpp Offset 0 Vdc Exp Rise Frequency 1 KHz Amplitude 4 Vpp Offset 0 Vdc Exp Fall Frequency 1 KHz Amplitude 4 Vpp Offset 0 Vdc User Manual SMO1000A-S 173/176...

  • Page 174: Troubleshooting

    Check whether the mode at the trigger panel (TRIGGER) is on ―Normalǁ or ―Singleǁ and whether the trigger level exceeds the waveform range. If yes, set the trigger level to the middle or set the mode to ―Autoǁ. Note: using AUTO could automatically finish the above setting. User Manual SMO1000A-S 174/176...
  • Page 175 4) Make sure whether the system of the USB storage device is FAT32. 5) Restart the instrument and then insert the USB storage device to check it. 6) If the USB storage device still cannot be used normally, please contact your sales. User Manual SMO1000A-S 175/176...

  • Page 176: Service And Support

    Dispatch the instrument to us (only on the receipt of our advice) at our factory address, securely packed in original packing, duly insured and freight paid along with accessories and a copy of the fault details noticed. User Manual SMO1000A-S 176/176...

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