Page 1 Digital oscilloscope SMO1000E User Manual...
Page 2 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. Ver_1.00/ 0917 Scientific Mes-Technik Pvt.
Page 3: Table Of Contents
To Adjust the Vertical Position ....................37 To Specify Channel Coupling .....................38 To Specify Bandwidth Limit .......................38 To Specify Probe Attenuation Factor ..................39 To Specify channel Input Impedance ..................39 To Specify Amplitude Unit ......................40 To Specify Deskew........................40 To Invert a Waveform .......................40 SMO1000E 3/185...
Page 4 DropOut Trigger ......................85 Runt Trigger ........................87 Pattern Trigger ....................... 89 Serial trigger and decode..................... 91 I2C Trigger and Serial Decode ....................92 Setup for I2C Signals ........................92 I2C Triggering ..........................94 I2C Serial Decode ........................98 SPI Triggering and Serial Decode ......................100 SMO1000E 4/185...
Page 5 To Make Automatic Measurement ..................142 To Clear Measurement Parameters ..................144 To Make All Measurement ..................... 144 Display Setting ..........................145 To Set Display Type ........................ 146 To Set Color Display ....................... 147 To Set and Clear Persistence ....................147 SMO1000E 5/185...
Page 6 Screen Test ........................173 Keyboard Test ......................174 LED Test ........................175 To specify Screen Saver Time ....................176 To Use the History Function ......................177 Factory Setup ..........................179 Troubleshooting ........................... 183 Service and Support ........................185 SMO1000E 6/185...
Page 7: Safety Information
So keep well ventilation and inspect the intake and fan regularly. 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. SMO1000E 7/185...
Page 8 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 to avoid damages to buttons, knob interfaces and other parts on the panels. SMO1000E 8/185...
Page 9: 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: Warning Test Hazardous protective Powe Voltage Earth Ground Switc Terminal SMO1000E 9/185...
Page 10: Measurement Category
Measurement category IV is for measurements performed at the source of the low- voltage installation. Examples are electricity meters and measurements on primary over current protection devices and ripple control units. SMO1000E 10/185...
Page 11: Working Environment
10 cm clearance beside, above and behind the instrument for adequate ventilation. WARNING Inadequate ventilation may cause temperature increase which would damage the instrument. So please keep the instrument well ventilated during operation and inspect the intake and fan regularly. SMO1000E 11/185...
Page 12: General Care And Cleaning
To avoid damages to the surface of the instrument and probe, please do not use any corrosive liquid or chemical cleanser. WARNING Make sure that the instrument is completely dry before restarting it to avoid short circuits or personal injuries. SMO1000E 12/185...
Page 13: Document Overview
Introduce how to save and recall the measurement result and the setting of the oscilloscope. System Setting Introduce how to set the system setup. Default Introduce the Default setup of the oscilloscope Troubleshooting Introduce how to deal with common failures of the oscilloscope. SMO1000E 13/185...
Page 14 Figure 39 MOSI Menu ......................Figure 40 SPI TRIG SET Menu ....................103 Figure 41 UART SIGNAL Menu ....................106 Figure 42 Reference Waveform ................... 125 Figure 43 FFT Waveform In Split Mode ................131 Figure 44 Differential Function Operation ................132 SMO1000E 14/185...
Page 15 Figure 66 Pass/Fail Test ......................165 Figure 67 LAN Setting Interface ................... 170 Figure 68 Screen Test ......................173 Figure 69 Keyboard Test ...................... 174 Figure 70 LED Test ........................ 175 Figure 71 Screen Saver Interface ..................176 Figure 72 History ........................177 SMO1000E 15/185...
Page 16: Quick Start
The contents of this chapter: 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 SMO1000E 16/185...
Page 17: Appearance And Dimensions
Scientific Appearance and Dimensions Figure 1 Front View Figure 2 Top View SMO1000E 17/185...
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 SMO1000E 18/185...
Page 19: To Connect To Power Supply
To Connect to Power Supply The power requirements of the oscilloscope are 100-240 V, 50/60/440 Hz. Please use the power cord supplied with the accessories to connect the oscilloscope to the power source. Power socket Figure 4 To Connect to Power Supply SMO1000E 19/185...
Page 20: Power-On Inspection
1. Connect the BNC terminal of the probe to a channel BNC connector of the oscilloscope at the front panel. 2. Connect the probe tip to the circuit point to be tested and connect the ground alligator clip of the probe to the circuit ground terminal. SMO1000E 20/185...
Page 21: Function Inspection
To avoid electric shock during the use of probe, please make sure that the insulated wire of the probe is in good condition and do not touch the metallic part of the probe when the probe is connected to high voltage source SMO1000E 21/185...
Page 22: Probe Compensation
3. 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 compensated” in the figure above. SMO1000E 22/185...
Page 23: Front Panel Overview
Figure 6 Front Panel Overview NO. Description NO. Description LCD Display Vertical Control Universal Knob Probe Comp Common Function Menus Analog Channel and Ext Input Run/Stop USB Host Auto Setup Menu Softkey Trigger Control Menu on/off Horizontal Control Power Button SMO1000E 23/185...
Page 24: Rear Panel Overview
The instrument can be connected to network via this interface to perform remote control. 4. Pass/Fail or Trigger Out The BNC port can output a signal that reflects the current waveform capture rate of the oscilloscope at each trigger or a pass/fail test pulse. 5. USB Device SMO1000E 24/185...
Page 25: Front Panel Function Overview
Press down this knob to quickly turn on Zoom function. SMO1000E 25/185...
Page 26: 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. SMO1000E 26/185...
Page 27: Trigger
Press down the knob to quickly reset the trigger level to center of the waveform. SMO1000E 27/185...
Page 28: Run Control
: press the button to set the acquisition state to Run or Stop. In RUN state, the key is illuminated in yellow. In STOP state, the key is illuminated in red. SMO1000E 28/185...
Page 29: Universal Knob
4. Choose file or directory or input filename. 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. SMO1000E 29/185...
Page 30: Menu
80000. : Press the button to enter the DECODE function menu. The oscilloscope supports I2C, SPI, UART/RS232, CAN and LIN serial bus decode. : Press the button to turn off or turn on the menu. SMO1000E 30/185...
Page 31: Help
The oscilloscope has an on line help function that supplies multi-language help information. You can access the help function by pressing any button for 2 seconds and a help window will explain the function. Also all of the submenus include help information. Figure 8 Help Message SMO1000E 31/185...
Page 32: User Interface
1.0 ns to 100 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. SMO1000E 32/185...
Page 33 Indicate that the USB Device （USBTMC）is connected. 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. SMO1000E 33/185...
Page 34: 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. Security lock hole Figure 10 To Use the Security Lock SMO1000E 34/185...
Page 35: 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 Specify Deskew To Invert a Waveform SMO1000E 35/185...
Page 36: 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. SMO1000E 36/185...
Page 37: To Adjust The Vertical Scale
The table below shows the range of vertical position according to the volt scale. Volt Scale Range of Vertical Position 500 µV/div ~ 100 mV/div ±2V 102 mV/div ~ 1 V/div ±20 V 1.02 V/div ~ 10 V/div ±200 V SMO1000E 37/185...
Page 38: To Specify Channel Coupling
20M. The default setup is Full. When bandwidth limit is enabled, the character B will be displayed in the channel label at the right side of the screen. At 2 mV/div volt scale, the BW Limit is set to 20M automatically, and cannot be turned off. SMO1000E 38/185...
Page 39: To Specify Probe Attenuation Factor
Press the CH1 button on the front panel; then press the Impedance softkey to select the desired impedance. The current channel input impedance is displayed in the channel label at the right side of the screen. SMO1000E 39/185...
Page 40: To Specify Amplitude Unit
1. Press CH1button on the front panel to enter the CH1 function menu. 2. Press the Next Page softkey to enter the second page of the CH1 function menu. 3. Press the Invert softkey to turn on or off the invert display. SMO1000E 40/185...
Page 41: Set The Horizontal System
Scientific 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 SMO1000E 41/185...
Page 42: Adjust The Horizontal Scale
The Horizontal Scale Knob works (in the Normal time mode) while acquisitions are running or when they are stopped. When running, adjusting the horizontal scale knob changes the sample rate. When stopped, adjusting the horizontal scale knob lets you zoom into acquired data. SMO1000E 42/185...
Page 43: Adjust Trigger Delay
The position knob works (in the Normal time mode) while acquisitions are running or when they are stopped. When running, adjusting the horizontal scale knob changes the sample rate. When stopped, adjusting the horizontal scale knob lets you zoom into acquired data. SMO1000E 43/185...
Page 44: Set The Roll Mode
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. SMO1000E 44/185...
Page 45: Use The Zoom Function
To change the time base of the normal window, turn off Zoom; then, turn the Horizontal Scale Knob. SMO1000E 45/185...
Page 46: 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 SMO1000E 46/185...
Page 47: Run Control
Single key is illuminated, and the oscilloscope waits until a user defined trigger condition occurs before it displays a waveform. 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 SMO1000E 47/185...
Page 48: 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 SMO1000E 48/185...
Page 49: 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. Pulse disappeared SMO1000E 49/185...
Page 50: 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. SMO1000E 50/185...
Page 51: Select Memory Depth
Since the oscilloscope has two acquisition memories, when only one channel is on, the maximal memory depth is up to 14 Mpts. The relation of memory depth, sample rate and waveform length fulfills the equation below: Memory depth = sample rate (Sa/s) × waveform length (s/div × div) SMO1000E 51/185...
Page 52: Select Sampling Mode
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. SMO1000E 52/185...
Page 53: Select Waveform Interpolation Method
This method bending signal waveform, and make it produce more realistic regular shape than pure square wave and pulse. When the sampling rate is 3 to 5 times the bandwidth of the system. Recommended Sinx/s interpolation method. Figure 11 Display Type Set to Dots SMO1000E 53/185...
Page 54 Scientific Figure 12 x Interpolation Figure 13 Sinx/x Interpolation SMO1000E 54/185...
Page 55: 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 SMO1000E 55/185...
Page 56: 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 SMO1000E 56/185...
Page 57: 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 SMO1000E 57/185...
Page 58: 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”. SMO1000E 58/185...
Page 59: Change The Horizontal Format
II and III, namely within (π/2 to π) or (π to 3π/2). 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. SMO1000E 59/185...
Page 60: Use Sequence Mode
3. Press the Segments Set softkey; and then turn the Universal Knob to select the desired value. Do the following steps to replay the sequence waveform under history mode: 1. Press the History softkey to enable HISTORY function . Figure 20 HISTORY Function Menu SMO1000E 60/185...
Page 61 3. Press the Frame No. softkey; and then turn the Universal Knob to select the frame to display. Press the softkey to replay the waveform from the current frame to 1. Press the softkey to stop replay. 6. Press the softkey to replay the waveform from the current frame to the last frame. SMO1000E 61/185...
Page 62: 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. SMO1000E 62/185...
Page 63 Scientific 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 SMO1000E 63/185...
Page 64: 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. SMO1000E 64/185...
Page 65: 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. SMO1000E 65/185...
Page 66: Trigger Level
The position of the trigger level for the analog channel is indicated by the trigger level icon (If the analog channel is on) at the left side of the display. The value of the analog channel trigger level is displayed in the upper- right corner of the display. SMO1000E 66/185...
Page 67: Trigger Coupling
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. SMO1000E 67/185...
Page 68: Trigger Holdoff
2. Press the Setup button on the front panel to enter the TRIGGER function menu. The default trigger type is edge. 3. Press the Holdoff Close softkey; and then turn the Universal Knob to set the desired holdoff time. Note: adjust the time scale and horizontal position will not affect the holdoff time. SMO1000E 68/185...
Page 69: Noise Rejection
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. Figure 21 Turn off the Noise Reject SMO1000E 69/185...
Page 70 1. Connect a signal to the oscilloscope and obtain a stable display. 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. SMO1000E 70/185...
Page 71: Trigger Type
Scientific 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 SMO1000E 71/185...
Page 72: 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. SMO1000E 72/185...
Page 73: 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. SMO1000E 73/185...
Page 74 --][-- (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. SMO1000E 74/185...
Page 75: 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. SMO1000E 75/185...
Page 76 --][-- (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 SMO1000E 76/185...
Page 77: 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 SMO1000E 77/185...
Page 78 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 SMO1000E 78/185...
Page 79 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. SMO1000E 79/185...
Page 80: 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. SMO1000E 80/185...
Page 81 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. SMO1000E 81/185...
Page 82 Scientific Figure 28 Relative Window Trigger SMO1000E 82/185...
Page 83: Interval Trigger
6. Press the Time Setting softkey (<=, >=, [--,--],--][--), turn the Universal Knob to select the desired value. SMO1000E 83/185...
Page 84 Scientific Figure 29 Interval Trigger SMO1000E 84/185...
Page 85: 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. SMO1000E 85/185...
Page 86 3. Press the Source softkey; turn the Universal Knob to select CH1 or CH2 as the trigger source. 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. SMO1000E 86/185...
Page 87: Runt Trigger
2. Press the Type softkey; then turn the Universal Knob to select DropOut and push down the knob to confirm. 3. Press the Source softkey; turn the Universal Knob to select CH1 or CH2 as the trigger source. 4. Press the Polarity softkey to select Positive or Negative pulse to trigger. SMO1000E 87/185...
Page 88 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. Figure 32 Runt Trigger SMO1000E 88/185...
Page 89: Pattern Trigger
AND, OR, NAND or NOR. 6. Press the Time softkey; then turn the Universal Knob to select the desired time value. 7. Press the Holdoff Close softkey to turn on the Holdoff function; then turn the SMO1000E 89/185...
Page 90 Scientific Universal Knob to select the desired value. Figure 33 Pattern Trigger SMO1000E 90/185...
Page 91: Serial Trigger And Decode
This chapter introduces the method of triggering and decoding these serial signals in details. The contents of this chapter: I2C Trigger and Decoder SPI Trigger and Decoder UART/RS232 Trigger and Decoder CAN Trigger and Decoder LIN Trigger and Decoder SMO1000E 91/185...
Page 92: I2C Trigger And Serial Decode
Press SDA to select the channel that is connected to the I2C data signal. Press second Threshold softkey to set the I2C data signal’s threshold voltage level by Universal Knob. The threshold voltage level is for decoding, and it will be SMO1000E 92/185...
Page 93 (Tips: SDA should keep stable during the whole high clock cycle, otherwise it will be interpreted as a start or stop condition (data transitioning while the clock is high).) 7. Press softkey to return previous menu. SMO1000E 93/185...
Page 94: I2C Triggering
Range softkey to set the qualifier and Data1 softkey to set the data’s value. If EEPROM’s data is greater(less, equal) than Data1, the oscilloscope will be triggered at the edge of ACK bit behind Data byte. It’s unnecessary that the Data byte musts follow the EEPROM. SMO1000E 94/185...
Page 95 Data1, second data value is Data2. (Note: If the data’s value is 0xXX, any data value will be matched) Figure 37 On the 17th Clock Edge Figure 38 On the 26th Clock Edge SMO1000E 95/185...
Page 96 Byte length is in the range of 1 to 12 bits. Operation steps: Press Setup to enter the TRIGGER function menu. Press Type and select Serial. Press Protocol and select I2C. Press Trigger Setting softkey. SMO1000E 96/185...
Page 97 Figure 40 I2C TRIGGER Menu Press the Condition softkey and turn the Universal Knob to select the trigger condition: If you select the EEPROM condition: Press the Limit Range softkey to set the qualifier ( = ,< or >). Press Data1 softkey and set its value by turning the Universal Knob. If you select 7 Addr &...
Page 98: I2C Serial Decode
5. Press Lines and set the number of lines by Universal Knob. The range of the lines is 1 to 7. 6. Press Format to change the character encoding format of the decoding’s result. 7. Press Scroll and turn the Universal Knob to view all frames. SMO1000E 98/185...
Page 99 NO — the number of frames in screen. TIME (timestamp) — the horizontal displacement between current frame and trigger position. ADDRESS — the address of a frame. R/W — the type of a frame(write or read). DATA — the value of data. SMO1000E 99/185...
Page 100: Spi Triggering And Serial Decode
Press the Edge Select softkey to set the oscilloscope will samples at clock signal’s rising edge or falling edge. Press softkey to return previous menu. SMO1000E 100/185...
Page 101 Figure 39 MOSI Menu Set CS: Press the CS softkey to enter the MOSI menu. Press the Cs Type softkey to select the chip select type. Modify the Cs type’s value. Press softkey to return previous menu. SMO1000E 101/185...
Page 102 CLK Timeout equal to) the value of timeout, the signal between the two edges is treat as a frame. The range of clock timeout is 100ns-5ms. Press the Bit Order softkey to select the bit order (LSB or MSB). SMO1000E 102/185...
Page 103: Spi Triggering
Table 3 Menu Explanations of the SPI Bit value Function Settings Explanation Menu High voltage level Bit Value Low voltage level Don’t care the voltage level 8. Press the Next Page softkey. 9. Press the Bit Order softkey to set the bit order(MSB or LSB). SMO1000E 103/185...
Page 104: Spi Serial Decode
5. Press Lines and set the number of lines by Universal Knob. The range of the lines is 1 to 7. 6. Press Format to change the character encoding format of the decoding’s result. 7. Press Scroll and turn the Universal Knob to view all frames. SMO1000E 104/185...
Page 105 The lists of decoding result: NO — the number of frames in screen. TIME (timestamp) — the horizontal displacement between current frame and trigger position. MISO — the decoding result of “Master-In, Slave-Out” line. MOSI —the decoding result of “Master-Out, Slave-In” line. SMO1000E 105/185...
Page 106: Uart/Rs232 Triggering And Serial Decode
Universal Knob. The threshold voltage level is for decoding, and it will be regard as the trigger voltage level when set the trigger type to serial. Press softkey to return previous menu. Press the Configure softkey to enter BUS CONFIG menu. SMO1000E 106/185...
Page 107 12. Press Stop Bit softkey to set the length of stop bit (1, 1.5 or 2 bits). 13. Press Next Page softkey. 14. Press the Bit Order softkey to select the bit order (LSB or MSB). 15. Press Idle Level softkey to set the idle level (LOW or HIGH). SMO1000E 107/185...
Page 108: Uart/Rs232 Triggering
Press the Value softkey to set data’s value. Data’s value is in range of 0x00 to 0xff. ERROR — if the parity check has been set, and the bit of parity check is error, the oscilloscope will be triggered. SMO1000E 108/185...
Page 109 Scientific Figure 53 UART Trigger SMO1000E 109/185...
Page 110: Uart/Rs232 Serial Decode
5. Press Lines and set the number of lines by Universal Knob. The range of the lines is 1 to 7. 6. Press Format to change the character encoding format of the decoding’s result. 7. Press Scroll and turn the Universal Knob to view all frames. Figure 54 UART/RS232 Decode SMO1000E 110/185...
Page 111 TIME (timestamp) — the horizontal displacement between current frame and trigger position. RX — the receiving channel. TX — the transmitting channel. RX ERR— Parity error or unknown error in the data received. TX ERR— Parity error or unknown error in the data transmitted. SMO1000E 111/185...
Page 112: Can Trigger And Serial Decode
The baud rate can be set as predefined value (from 5kb/s to 1Mb/s) or custom value (from 1b/s to 1Mb/s). If the desired baud rate is not listed, press Baud and select custom option, press the Custom and turn the Universal Knob to set the desired baud rate. SMO1000E 112/185...
Page 113 Scientific Press Decode Source to select the signal to be decoded. CAN_H — CAN_H signal will be decoded. CAN_L — CAN_L signal will be decoded. CAN_H-CAN_L — CAN_H and CAN_L are both used as the source of decoding. SMO1000E 113/185...
Page 114: Can Triggering
For example, if the ID’s length is 11 bits, it will be split into two bytes, a byte includes 8 bits. If “1st byte” is selected, only the 8 least significant bits can be changed.) SMO1000E 114/185...
Page 115 Press Data1 softkey and set the value of the first byte by Universal Knob. e. Press Data2 softkey and set the value of the second byte by Universal Knob. See as figure56, the trigger condition is ID, ID’s value is 0x013, Baud rate is 100kb/s: Figure 56 CAN Trigger SMO1000E 115/185...
Page 116: Can Serial Decode
5. Press Lines and set the number of lines by Universal Knob. The range of the lines is 1 to 7. 6. Press Format to change the character encoding format of the decoding’s result. 7. Press Scroll and turn the Universal Knob to view all frames. SMO1000E 116/185...
Page 117 ID — the id of frames, the oscilloscope can automatically detect the length of frame’s id (11 bits or 27 bits). LENGTH — the length of data field. DATA — the value of data field. CRC — the value of CRC (Cyclic Redundancy Check) field. ACK — Acknowledgment bit. SMO1000E 117/185...
Page 118: Lin Triggering And Serial Decode
Press Baud softkey to set baud rate. The baud rate can be set as predefined value. If the desired baud rate is not listed, select custom option, press the Custom and turn the Universal Knob to set the desired baud rate. SMO1000E 118/185...
Page 119: Lin Triggering
Operation steps: 1. Press Setup to enter the TRIGGER function menu. 2. Press Type and select Serial. 3. Press Protocol and select I2C. 4. Press Trigger Setting softkey to enter LIN TRIG SET menu. SMO1000E 119/185...
Page 120 Press ID softkey and set its value by turning the Universal Knob. b. Press DATA1 softkey and set its value by turning the Universal Knob. c. Press DATA2 softkey and set its value by turning the Universal Knob. Figure 59 LIN Trigger SMO1000E 120/185...
Page 121: Lin Serial Decode
5. Press Lines and set the number of lines by Universal Knob. The range of the lines is 1 to 7. 6. Press Format to change the character encoding format of the decoding’s result. 7. Press Scroll and turn the Universal Knob to view all frames. Figure 60 LIN Decode SMO1000E 121/185...
Page 122 ID — the value of frame’s Protected Identifier Field. DATA LENGTH — the length of Data Field. ID CHECK — the two check bits of Protected Identifier Field. DATA — the value of Data Field. DATA CHECK — the value of Checksum Field. SMO1000E 122/185...
Page 123: 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 SMO1000E 123/185...
Page 124: To Save Ref Waveform To Internal Memory
REF waveform that you want to display. 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. SMO1000E 124/185...
Page 125: To Adjust Ref Waveform Display
To Clear REF Waveform Display The oscilloscope does not have the “Clear” 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. SMO1000E 125/185...
Page 126: To Make Math Operation
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 ( ) SMO1000E 126/185...
Page 127: Math Operators
The resulting math waveform is displayed in white and labeled with “M”. 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. SMO1000E 127/185...
Page 128: Multiplication And Division
The resulting math waveform is displayed in white and labeled with “M”. 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. SMO1000E 128/185...
Page 129: 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 SMO1000E 129/185...
Page 130 6. Press the Scale softkey to select the unit of vertical axis. The unit of the vertical axis can be dB or Vrms which use logarithmic mode and linear mode to display vertical amplitude respectively. If you need to display the FFT frequency spectrum in a relatively larger dynamic range, dBVrms is recommended. SMO1000E 130/185...
Page 131 Y2 cursors to measure amplitude in dB and difference in amplitude (∆Y). 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. SMO1000E 131/185...
Page 132: Math Function Operation
Figure 44 Differential 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 SMO1000E 132/185...
Page 133: 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 45 Integral without Offset SMO1000E 133/185...
Page 134: Square Root
Integral with Offset Figure 46 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 47 Square Root SMO1000E 134/185...
Page 135: To Make Cursors Measurements
Y1 and Y2 (△Y). When set cursor type to Y2-Y1, 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. SMO1000E 135/185...
Page 136: 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: 1. Use cursors to measure pulse width: Figure 48 Measure Pulse Width SMO1000E 136/185...
Page 137: 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 SMO1000E 137/185...
Page 138: Type Of Measurement
12. Crms: Root mean square of all data values in the first cycle. 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. SMO1000E 138/185...
Page 139 Amplitude. The X cursors show which edge is being measured (edge closest to the trigger reference point). Figure 51 Preshoot 15. L@X: the voltage value between the trigger point and the vertical position of the channel SMO1000E 139/185...
Page 140: Time Measurements
9. Delay：：：： Time from the trigger to the first transition at the 50% crossing. 10. T@L：：：： Time from trigger of each transition at a specific level and slope, include: Current, Max, Min, Mean, Std-dev. SMO1000E 140/185...
Page 141: Delay Measurements
8. LFR: Time from the first falling edge of channel A ,to the last rising edge of channel B. 9. LFF: Time from the first falling edge of channel A ,to the last falling edge of channel B. SMO1000E 141/185...
Page 142: To Make Automatic Measurement
The measurement display area can display 4 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 53 Select the Measurement Parameter SMO1000E 142/185...
Page 143 Scientific Figure 54 Added the Measurement Note: if the parameter does not match the measure condition, it will display as “****”. SMO1000E 143/185...
Page 144: To Clear Measurement Parameters
Do the following steps to make all parameters measurement. Press the Measure button on the front panel to enter the MEASURE function menu. Press the All Measure softkey to select On. Press the Source softkey to select the measure source (CH1, CH2, MATH, REFA, REFB). SMO1000E 144/185...
Page 145: 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 SMO1000E 145/185...
Page 146: To Set Display Type
(such as square waveform). 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 56 Vectors Display Figure 57 Dots Display SMO1000E 146/185...
Page 147: To Set Color Display
Infinite —select “Infinite” 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. SMO1000E 147/185...
Page 148: 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. SMO1000E 148/185...
Page 149: To Select Grid Type
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. Note: Waveform intensity adjustment affects analog channel waveforms only (not math waveforms, reference waveforms, digital waveforms, etc.). SMO1000E 149/185...
Page 150: 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 80%, and the range is from 20% to 80%. SMO1000E 150/185...
Page 151: 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 SMO1000E 151/185...
Page 152: Save Type
The recall of CSV file is not supported. 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. SMO1000E 152/185...
Page 153 The recall of Matlab file is not supported. 9. To Default Key The oscilloscope saves the factory config and user set config.Then you can select the default function is the factory config or user set config SMO1000E 153/185...
Page 154: 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. SMO1000E 154/185...
Page 155: External Save And Recall
3. Press the Recall softkey to enter the SAVE/RECALL file system. Figure 60 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. SMO1000E 155/185...
Page 156 Refer to the descriptions in “To Create a new file or fold” to create a new file name. Figure 62 File Name Dialogue 6. Press the Enter softkey to save the current waveform to the external USB storage device, SMO1000E 156/185...
Page 157 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. SMO1000E 157/185...
Page 158: 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 SMO1000E 158/185...
Page 159: To Create A New File Or Folder
Name Input Area Keyboard Area Figure 63 Input Keyboard 4. To delete the name in the name input area, press the Backspace softkey continuously to delete the character one by one. SMO1000E 159/185...
Page 160 3. Press the Save or Recall softkey to enter the SAVE/RECAL file system. 4. Turn the Universal Knob to select the file or folder to be deleted, and then press the Delete softkey. Then the file or folder will be deleted. SMO1000E 160/185...
Page 161: System Function Setting
To Enable or Disable the Sound To Specify the Language To do Pass/Fail Test To Use the History Function To Print the Screen Image To Update Firmware or configuration To Do self Test To Specify the Screen Saver Time SMO1000E 161/185...
Page 162: To View The System Status
Product Type: display the product type of the oscilloscope. Serial NO.: list the serial number of the oscilloscope. Scope ID: display the scope identification of the oscilloscope. Figure 64 System Status 3. Press the Single button on the front panel to exit. SMO1000E 162/185...
Page 163: 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. SMO1000E 163/185...
Page 164: 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. SMO1000E 164/185...
Page 165: To Do Pass/Fail Test
The test results can be displayed on the screen as well as be declared through the system sound or the pulse signal output from the [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 66 Pass/Fail Test SMO1000E 165/185...
Page 166: 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. SMO1000E 166/185...
Page 167: 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. SMO1000E 167/185...
Page 168 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. SMO1000E 168/185...
Page 169: Io Set
2. Press the Utility button on the front panel to enter the UTILITY function menu. 3. Press the IO Set softkey to enter the I/O SET function menu. 4. Press the USB Device softkey to select Printer. 5. Press the Print button on the front panel to print the screen image. SMO1000E 169/185...
Page 170: 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. 6. Use EasyScopeX or NI Vista to communicate with the oscilloscope. SMO1000E 170/185...
Page 171: To Set Aux Output
The maximal capture rate is 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. SMO1000E 171/185...
Page 172: 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. SMO1000E 172/185...
Page 173: 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. SMO1000E 173/185...
Page 174: Keyboard Test
0. Test every knob randomly. 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. SMO1000E 174/185...
Page 175: Led Test
Run/Stop button displays green. 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. SMO1000E 175/185...
Page 176: 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 71 Screen Saver Interface 5. Press the any button on the front to exit the screen saver program. SMO1000E 176/185...
Page 177: To Use The History Function
When press the Run/Stop button or enable the history function, you may not get the maximal frames, because the memory is not filled. So if you want to get the maximal frames, please wait for enough time for acquisition. SMO1000E 177/185...
Page 178 1958 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. SMO1000E 178/185...
Page 179: Factory Setup
Channel on/off V/div 1 V/div Offset Coupling BW Limit Full Adjust Coarse Probe Impedance 1 MΩ Unit Invert Acquire Acquisition Normal Sinx/x Sinx Mem Depth 14 Mpts Trigger Type Edge Source Slope Rising Holdoff Coupling Noise Rejest Mode Auto SMO1000E 179/185...
Page 180 Internal Setup NO.1 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 SMO1000E 180/185...
Page 181 Invert V/div 1.00 V^2/div offset 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 SMO1000E 181/185...
Page 182 Scientific ∫dt Source Offset 1.00 µVS/div Vertical Scale Vertical Offset √ Source 1.00 V /div Vertical Scale Vertical Offset Source Location REF A Display SMO1000E 182/185...
Page 183: Troubleshooting
Check whether the mode at the trigger panel (TRIGGER) is on “Normal” or “Single” and whether the trigger level exceeds the waveform range. If yes, set the trigger level to the middle or set the mode to “Auto”. Note: using AUTO could automatically finish the above setting. SMO1000E 183/185...
Page 184 Make sure that the USB storage device being used is flash storage type. This oscilloscope does not support hardware storage type. Restart the instrument and then insert the USB storage device to check it. If the USB storage device still cannot be used normally, please contact your sales. SMO1000E 184/185...
Page 185: Service And Support
3. 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. SMO1000E 185/185...

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