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multicomp pro MP Series User Manual

Tablet oscilloscopes
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MP Four-Channel Series Tablet Oscilloscopes
User Manual
Models MP720645, MP720775 and MP720776
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  • Page 1 MP Four-Channel Series Tablet Oscilloscopes User Manual Models MP720645, MP720775 and MP720776...

  • Page 2: Table Of Contents

    Table of Contents 1. General Safety Requirements ................1 2. Safety Terms and Symbols ..................2 3. Junior User Guidebook ..................4 Introduction to the Structure of the Oscilloscope ............5 Front Panel ..........................5 Side Panel ..........................6 Top Panel ..........................7 User Interface Introduction ..................
  • Page 3 Use FFT function ........................85 Use XY Format ........................91 Use Pass/Fail function ......................92 Use Executive Buttons ......................94 Print the Screen Image ......................95 5. Communication with PC ..................97 Using USB Port ......................97 Using LAN Port ......................98 Connect directly ........................98 Connect through a router ......................100 Using Wi-Fi to Connect with PC ................

  • Page 4: General Safety Requirements

    Multicomp-Pro 1. General Safety Requirements Before use, please read the following safety precautions to avoid any possible bodily injury and to prevent this product or any other connected products from damage. In order to avoid any contingent danger, ensure this product is only used within the range specified.

  • Page 5: Safety Terms And Symbols

    Multicomp-Pro 2. Safety Terms and Symbols Safety Terms Terms in this manual. The following terms may appear in this manual: Warning: Warning indicates the conditions or practices that could result in injury or loss of life. Caution: Caution indicates the conditions or practices that could result in damage to this product or other property.
  • Page 6 Multicomp-Pro The diagram of the oscilloscope ground wire connection: Oscilloscope AC Adapter Probe Electrical Outlet Signal Input Ground Clip The diagram of the ground wire connection when the battery-powered oscilloscope is connected to the AC-powered PC through the ports: Oscilloscope Probe Electrical Outlet (Battery-power)

  • Page 7: Junior User Guidebook

    Multicomp-Pro 3. Junior User Guidebook This chapter deals with the following topics mainly:  Introduction to the structure of the oscilloscope  Introduction to the user interface  How to implement the general inspection  How to implement the function inspection ...

  • Page 8: Introduction To The Structure Of The Oscilloscope

    Multicomp-Pro Introduction to the Structure of the Oscilloscope This chapter makes a simple description of the operation and function of the oscilloscope, enabling you to be familiar with the use of the oscilloscope in the shortest time. Front Panel The front panel has knobs and function buttons. Through the function buttons, you can enter different function menus or obtain a specific function application directly.

  • Page 9: Side Panel

    Multicomp-Pro the waveform zooming mode. 6. Trigger button: Accesses to trigger system setting. When the button light is on, the upper knob is used to adjust trigger level of current channel. 7. The lower knob: When one of the CH1 - CH4 buttons is lighted, this knob is used to adjust the voltage scale of current channel.

  • Page 10: Top Panel

    Multicomp-Pro 4. USB Host port: It is used to transfer data when external USB equipment connects to the oscilloscope regarded as "host device". For example: Saving the waveform to USB flash disk needs to use this port. 5. LAN port: the network port which can be used to connect with PC. 6.
  • Page 11 Multicomp-Pro to force a trigger signal, which is mainly applied to the "Normal" and "Single" trigger modes. Scan: Capture and display the waveform continuously. Stop: Data acquisition stopped. 4. Click to auto set. 5. The two blue dotted lines indicates the vertical position of cursor measurement.

  • Page 12: How To Implement The General Inspection

    Multicomp-Pro Phase A->B , "+PC" the +Pulse count, "-PC" the - Pulse count, "+E" the Rise edge count, "-E" the Fall edge count, "AR" the Area, "CA" the Cycle area. 24. The readings show the record length. 25. The readings show current sample rate. 26.

  • Page 13: How To Implement The Function Inspection

    Multicomp-Pro for this business informed about it, a repairing or replacement of the instrument will be arranged by us. How to Implement the Function Inspection Make a fast function check to verify the normal operation of the instrument, according to the following steps: 1.

  • Page 14: How To Set The Probe Attenuation Coefficient

    Multicomp-Pro adjustment to match the probe with the input channel. The probe which is not compensated or presents a compensation deviation will result in the measuring error or mistake. For adjusting the probe compensation, please carry out the following steps: 1.

  • Page 15: How To Use The Probe Safely

    Multicomp-Pro This setting will be valid all the time before it is changed again. Caution: The default attenuation coefficient of the probe on the instrument is preset to 10X. Make sure that the set value of the attenuation switch in the probe is the same as the menu selection of the probe attenuation coefficient in the oscilloscope.

  • Page 16: How To Implement Self-Calibration

    Multicomp-Pro How to Implement Self-calibration The self-calibration application can make the oscilloscope reach the optimum condition rapidly to obtain the most accurate measurement value. You can carry out this application program at any time. This program must be executed whenever the change of ambient temperature is 5℃ or over. Before performing a self-calibration, disconnect all probes or wires from the input connector.

  • Page 17: Introduction To The Horizontal System

    Multicomp-Pro If the channel is under the DC coupling mode, you can rapidly measure the DC component of the signal through the observation of the difference between the wave form and the signal ground. If the channel is under the AC mode, the DC component would be filtered out. This mode helps you display the AC component of the signal with a higher sensitivity.

  • Page 18: Introduction To The Trigger System

    Multicomp-Pro found that the Horizontal Time Base displayed in the status bar changes accordingly. 3. When the HOR button is lit, use the upper knob to adjust the horizontal position of the signal in the waveform window. The upper knob is used to control the triggering displacement of the signal or for other special applications.

  • Page 19: Touchscreen Controls

    Multicomp-Pro Touchscreen Controls You can control the oscilloscope by different gestures. The touchable icon at the top right of the screen is used to enable ( ) or disable ( ) the touchscreen controls. The instruction of touchscreen controls is as below. ...
  • Page 20 Multicomp-Pro When OFF is shown, click to turn on the function, and enter the menu. When ON is shown and unselected, click to enter the menu, click again to turn off.  Set the channel status: Click the channel on the left bottom of the display area, you can turn on, select or turn off the channel.
  • Page 21 Multicomp-Pro When the P icon appears, in the full screen, swipe left/right to control the horizontal position, swipe up/down to control the vertical position of the selected channel. Control the horizontal position Control the vertical position of the selected channel Click the P icon to fine-turn, long-press to adjust continuously.
  • Page 22 Multicomp-Pro When the L icon appears, in the full screen, swipe up/down to control the trigger level of the source in the trigger menu. Click the L icon to fine-turn, long-press to adjust continuously. Control the trigger level of the source in the trigger menu ...
  • Page 23 Multicomp-Pro time base, swipe up/down to change the voltage division of the selected channel. Click the icons to fine-turn, long-press to adjust continuously. Control the Control the time base voltage division In the full screen, pinch and spread horizontally to change the time base; pinch and spread vertically to change the voltage division of the selected channel.
  • Page 24 Multicomp-Pro Control the vertical Switch to select the lines cursor line...

  • Page 25: Advanced User Guidebook

    Multicomp-Pro 4. Advanced User Guidebook Up till now, you have already been familiar with the basic operations of the function areas, buttons and knobs in the front panel of the oscilloscope. Based the introduction of the previous Chapter, the user should have an initial knowledge of the determination of the change of the oscilloscope setting through observing the status bar.

  • Page 26: How To Set The Vertical System

    Multicomp-Pro How to Set the Vertical System The VERTICAL CONTROLS include four menu buttons such as CH1, CH2, CH3, CH4, and two knobs such as the upper knob, the lower knob. Setting of CH1 - CH4 Each channel has an independent vertical menu and each item is set respectively based on the channel.
  • Page 27 Multicomp-Pro (2) Select Coupling in the bottom menu. (3) Select DC in the right menu. Both DC and AC components of the signal are passed. (4) Select AC in the right menu. The direct current component of the signal is blocked.

  • Page 28: How To Set The Horizontal System

    Multicomp-Pro (3) Select Full band in the right menu. The high frequency of the signal will be allowed to pass. (4) Select 20M in the right menu. The bandwidth is limited to 20 MHz. The frequencies above 20MHz will be rejected. Use the upper knob and the lower knob If you want to set the vertical position and vertical scale of a channel, press CH1, CH2, CH3 or CH4 at first to select the desired channel, then turn the upper knob to...

  • Page 29: Waveform Horizontal Zooming

    Multicomp-Pro changes with the time base.  The lower knob: When the HOR button is lit, adjust the horizontal scale of waveform.  Horizontal HOR key: Switch between the normal mode and the waveform zooming mode. When the magnifier is turned off, the waveform is magnified in the horizontal direction;...
  • Page 30 Multicomp-Pro (3) Turn the lower knob to adjust the horizontal magnification. The horizontal time base of the magnifier window also changes. (4) Select Ratio from the bottom menu, select the vertical magnification in the left menu. The voltage scale of the magnifier window will also change accordingly. (5) Select Window from the bottom menu.

  • Page 31: How To Operate The Function Menu

    Multicomp-Pro selection to make the selection more recognizable. Magnifier Window Cursor Measurement When the magnifier function is on: 1. Click to call up the menu panel. 2. Click the Cursor softkey on panel to switch to the ON state. 3. In the bottom menu, select Window as the Main or Extension to make the cursor line appear in the main window or magnifier window.

  • Page 32: Single Trigger

    Multicomp-Pro The oscilloscope provides three trigger types: single trigger, logic trigger and bus trigger. Each type of trigger has different sub menus. Click to call up the menu panel, click Tig Menu, select the first menu item in the bottom menu, select Single, Logic or Bus Trigger in the right menu, choose different trigger types in the left menu.
  • Page 33 Multicomp-Pro An edge trigger occurs on trigger level value of the specified edge of input signal. Select Edge trigger mode to trigger on rising edge or falling edge. In Edge Trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, , indicates that trigger type is edge, trigger source is CH1, coupling is DC, and trigger level is 0.00mV.
  • Page 34 Multicomp-Pro Video Trigger menu list: Menu Setting Instruction Single Video Set vertical channel trigger type as video trigger Select CH1 as the trigger source Select CH2 as the trigger source Source Select CH3 as the trigger source Select CH4 as the trigger source NTSC Modu Select video modulation...
  • Page 35 Multicomp-Pro Select pulse width condition and click to set time, click to move cursor to choose which digit to be set. Auto Acquire waveform even no trigger occurred Normal Acquire waveform when trigger occurred When trigger occurs, acquire one waveform then Mode Single stop...
  • Page 36 Multicomp-Pro Auto Acquire waveform even no trigger occurred Normal Acquire waveform when trigger occurred Single When trigger occurs, acquire one waveform Mode then stop 100 ns – 10 s, click Holdoff to set time Holdoff interval before another trigger occur, click to move cursor to choose which digit to be set.
  • Page 37 Multicomp-Pro Click to set pulse width, click move cursor to choose which digit to be set. Trigger when runt pulse is greater than the set pulse width. Trigger when runt pulse equals to the set pulse width. Trigger when runt pulse is lower than the set pulse width.
  • Page 38 Multicomp-Pro Enter: Triggers when the trigger signal enters the specified trigger level range. Exit: Triggers when the trigger signal exits the specified trigger level range. Time: Specify the hold time of the input signal after entering specified trigger level. oscilloscope triggers when the accumulated hold time is greater than the windows time.
  • Page 39 Multicomp-Pro Set idle time. Idle time means the minimum time of idle clock before searching data that can meet Configure Idle Time trigger conditions. Available range is 30ns-10s, default 100ns. Auto Acquire waveform even no trigger occurred Normal Acquire waveform when trigger occurred Single When trigger occurs, acquire one waveform then Mode...

  • Page 40: Logic Trigger

    Multicomp-Pro Set vertical channel trigger type as Nth Edge Single Nth Edge trigger. Select CH1 as the trigger source Select CH2 as the trigger source Source Select CH3 as the trigger source Select CH4 as the trigger source Edge Trigger on the rising edge of the input signal when voltage level meets the specified trigger level.

  • Page 41: Bus Trigger

    Multicomp-Pro Set CH1 as High Level, Low level, high or low level, Rise and Fall. Set CH2 as High Level, Low level, high or low level, Rise and Fall. Set CH3 as High Level, Low level, high or low Input level, Rise and Fall.
  • Page 42 Multicomp-Pro UART Trigger UART Trigger menu list: Menu Setting Instruction Set vertical channel bus type as UART Bus Type UART trigger. Select CH1 as the trigger source. Select CH2 as the trigger source. Source Select CH3 as the trigger source. Select CH4 as the trigger source.
  • Page 43 Multicomp-Pro Parity: Select Odd or Even. Common Baud: click in the left menu to Chk Error choose common baud. Custom Baud: click to choose baud, ranges from 50 to 10,000,000. Data Bits: Set as 5, 6, 7, 8 bits. Data： Set data according to data bits, ranges from 0-31, 0-63, 0-127 or 0-255.
  • Page 44 Multicomp-Pro Set SCL. Source Set SDA. Trigger when SDA data transitions from Start high to low while SCL is high. When another start condition occurs Restart before a stop condition. Trigger when SDA data transitions from Stop low to high while SCL is high. Trigger when SDA data is high during Ack Lost any acknowledgement of SCL clock...
  • Page 45 Multicomp-Pro Trigger on the specified data when the timeout condition is meet. When using SPI trigger, you need to specify the SCL and SDA data sources. In SPI bus trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, , indicates that trigger type is SPI, CH1 trigger level is 0.00mV.
  • Page 46 Multicomp-Pro Stuffing Error. You need to specify the signal source, trigger signal type, sample point, and signal rate of the CAN signal. In CAN bus trigger mode, the trigger setting information is displayed on bottom right of the screen, for example, , indicates that trigger type is CAN, CH1 trigger level is -126 mV.

  • Page 47: Bus Decoding

    Multicomp-Pro Click to set the Byte number of bytes. The range is 1 Configure Length to 8. Data (Bottom menu) Click to set value, Data click to move cursor. Format Select Standard or Extend. Click to set value, click to move cursor. Configure Click to set the...
  • Page 48 Multicomp-Pro position in the waveform. UART Decoding menu list: Menu Setting Instruction Bus Type UART Set bus type of decoding as UART. Common Select from the Baud list on the left. Baud Click to set the Baud. The range is 50 to Custom 10,000,000.
  • Page 49 Multicomp-Pro Tip: If there are repetitive menu items in both trigger menu and decoding menu, you can set anyone of them, the other will be changed synchronously. Decoded information interpretation: Information Abbreviation Background Read Address R, Read, or do not display Green Write Address W, Write, or do not display...
  • Page 50 Multicomp-Pro (4) Click to call up the menu panel. Click the Decode softkey on panel to switch to the ON state. Select bus type as SPI. set parameters based on the characteristics of the signal. When the parameters are set correctly, the information carried by the signal will be displayed.
  • Page 51 Multicomp-Pro To decode CAN signal: (1) Connect the CAN signal to the Signal Input Channel of the oscilloscope. (2) Adjust to the proper time base and voltage division. (3) In trigger menu, select Bus trigger, and select bus type as CAN, set parameters based on the characteristics of the signal, trigger the signal correctly and obtain stable display.

  • Page 52: Implement Sampling Setup

    Multicomp-Pro Select "ON" to display the event table. EventTable If a USB storage device is currently connected to the instrument, save the event table data in a .csv Save (spreadsheet) formatted file on the external USB EventTable storage device. Select "ON" to display the ASCII table. ASCII Table Implement Sampling Setup Click...
  • Page 53 Multicomp-Pro 12-bit 14-bit The description of the Intrpl menu is shown as follows: Function Menu Setting Description Sinx/x Use sine(x)/x interpolation Intrpl Use linear interpolation Interpolation method is a processing method to connect the sampled points, using some points to calculate the whole appearance of the waveform. Select the appropriate interpolation method according to the actual signal.

  • Page 54: Implement The Auxiliary System Function Setting

    Multicomp-Pro Figure 4-5 Linear interpolation Implement the Auxiliary System Function Setting ●Config Click to call up the menu panel. Click the Utility softkey on panel, select Function in the bottom menu, select Configure in the left menu. The description of Configure Menu is shown as the follows: Function Setting Description...
  • Page 55 Multicomp-Pro Function Setting Description Menu BackLight 0% - 100% Adjust the backlight. Graticule Select the grid type Battery Turn on or off the battery display Menu Time OFF, 5s - 30s Set the disappear time of menu ●Adjust Click to call up the menu panel. Click the Utility softkey on panel, select Function in the bottom menu, select Adjust in the left menu.

  • Page 56: Set The Display System

    Multicomp-Pro select Function in the bottom menu, select Adjust in the left menu. 3. Select ProbeCh. in the bottom menu, tips about probe checking shows on the screen. 4. Select ProbeCh. again to begin probe checking and the checking result will occur after 3s;...
  • Page 57 Multicomp-Pro Function Setting Description Menu Dots Only the sampling points are displayed. Type Vect The space between the adjacent sampling points in the display is filled with the vector form. 1 Second Persist 2 Seconds Set the persistence time Persist 5 Seconds &Color Infinity...
  • Page 58 Multicomp-Pro Cold (1) Click to call up the menu panel. Click the Display softkey on panel. (2) Select Persist&Color in the bottom menu. (3) Select Color in the right menu, choose between ON/OFF. Figure 4-6 The color temperature function is on Counter It is a 6-digit single-channel counter.

  • Page 59: Save And Recall A Waveform

    Multicomp-Pro Single, set the trigger mode to Edge, select the signal source. 2. Click , click the Display softkey on panel. 3. Select Counter as ON or OFF in the bottom menu. Save and Recall a Waveform Click to call up the menu panel. Click the Save softkey on panel, you can save the waveforms, configures, screen images, record or clone the waveform.
  • Page 60 Multicomp-Pro Save the waveform of the source to the selected address. Whatever the Type of save menu is set, you can save the waveform by just pressing the Copy Save panel button in any user interface. Select Type in the bottom menu, in the right Format menu, you can select the storage format.
  • Page 61 Multicomp-Pro 4. Select Storage in the bottom menu, select Internal in the right menu. 5. Select Source in the bottom menu, check CH1, CH2, Math in the right menu for Source. 6. Select Object & Show in the bottom menu, select Wave1 as object address in the left menu.
  • Page 62 Multicomp-Pro "Figure 3-2 Side Panel". If an icon appears on the top right of the screen, the USB disk is installed successfully. If the USB disk cannot be recognized, format the USB disk according to the methods in "USB disk Requirements"...
  • Page 63 Multicomp-Pro Figure 4-7: Disk Management of computer 4. Right click 1 or 2 red mark area, choose Format. And system will pop up a warning message, click Yes. Figure 4-8: Format the USB disk warning 5. Set File System as FAT32, Allocation unit size 4096. Check "Perform a quick format"...
  • Page 64 Multicomp-Pro Figure 4-9: Formatting the USB disk setting 6. Formatting process. Figure 4-10: Formatting the USB disk Check whether the USB disk is FAT32 with allocation unit size 4096 after formatting. Use Minitool Partition Wizard to format Download URL: http://www.partitionwizard.com/free-partition-manager.html Tip: There are many tools for the USB disk formatting on the market, just take Minitool Partition Wizard for example here.
  • Page 65 Multicomp-Pro 3. Click Reload Disk on the pull-down menu at the top left or push keyboard F5, and information about the USB disk will display on the right side with red mark 1 and 2. Figure 4-11: Reload Disk 4. Right click 1 or 2 red mark area, choose Format. Figure 4-12: Choose format 5.

  • Page 66: Record/Playback Waveforms

    Multicomp-Pro 6. Click Apply at the top left of the menu. Then click Yes on the pop-up warning to begin formatting. Figure 4-14: Apply setting 7. Formatting process Figure 4-15: Format process Format the USB disk successfully Figure 4-16: Format successfully Record/Playback Waveforms Click to call up the menu panel.
  • Page 67 Multicomp-Pro and storage function. The storage medium contains two kinds: Internal and External. When the storage medium is Internal, Wave Record contains four modes: OFF, Record, Playback and Storage. When storage medium is External, Wave Record contains two modes: OFF, Record.
  • Page 68 Multicomp-Pro Play Begin to record Operate Stop Stop recording Storage: Save the current wave according to the start frame and end frame set. Storage menu shows as follows: Menu Setting Instruction Click to select the number of start Start frame Storage frame to store (1 - 1000) mode...
  • Page 69 Multicomp-Pro FrameSet Click to select the interval between Interval recorded frames (10ms - 10s) Infinity Record infinitely until the storage medium is full Refresh wave during recording Refresh Stop refreshing Play Begin to record Operate Stop Stop recording Note: Both of the waveforms of Channel 1 and Channel 2 will be recorded. If a Channel is turned off while recording, the waveform of the channel is invalid in the playback mode.

  • Page 70: Clone And Recall A Waveform

    Multicomp-Pro Figure 4-17: Play back waveform by software Clone and Recall a waveform Click to call up the menu panel. Click the Save softkey on panel. Select Type in the bottom menu, select Clone in the left menu. You can clone one or two channel waveforms between two cursors, and save it as a cloned waveform into a USB memory device.
  • Page 71 Multicomp-Pro Click line a to select it, swipe left/right to move it. Click line b to select it, swipe left/right to move it. Two cursors are linked. Click line a or b to select them, swipe left/right to move the pair of cursors. Set the cursors to select the entire screen automatically.
  • Page 72 Multicomp-Pro the USB memory device as an OTA file. Data format description of OTA waveform file If the source mode is set to Out1 or Out2, OTA file consists of two parts: the file header and the channel data. If the source mode is set to Out1&Out2, OTA file consists of three parts: file header, the first channel data, and the second channel data.

  • Page 73: Update Your Instrument Firmware

    Multicomp-Pro ADCB Parameter Meaning Value Comment name ADCB ADC bit, ADC 4 bytes int 8-bit or 12-bit resolution CHAN Parameter Meaning Value Comment name CHAN Number of 4 bytes int 1 or 2 channels VOL2 Parameter Meaning Value Comment name VOL2 Voltage division, 4 bytes float...
  • Page 74 Multicomp-Pro 1. Click to call up the menu panel. Click the Utility softkey on panel, select Function in the bottom menu, select Configure in the left menu, select About in the bottom menu. View the model and the currently installed firmware version. 2.

  • Page 75: Measure Automatically

    Multicomp-Pro Measure Automatically Click to call up the menu panel. Click the Measure softkey on panel to display the Measure menu. At most 8 types of measurements could be displayed on the bottom left of the screen. The oscilloscopes provide 39 parameters for auto measurement, including Period, Frequency, Mean, PK-PK, RMS, Max, Min, Top, Base, Amplitude, Overshoot, Preshoot, Rise Time, Fall Time, +PulseWidth, -PulseWidth, +Duty Cycle, -Duty Cycle, Screen Duty, FRR, FRF, FFR, FFF, LRR, LRF,...
  • Page 76 Multicomp-Pro Reset Restart statistics on statistics Measure Only if the waveform channel is in the ON state, the measurement can be performed. The automatic measurement cannot be performed in the following situation: 1) On the saved waveform. 2) On Waveform Math waveform.
  • Page 77 Multicomp-Pro RMS, and Cursor RMS. Figure 4-19 below shows a pulse with some of the voltage measurement points. Figure 4-19 Mean: The arithmetic mean over the entire waveform. PK-PK: Peak-to-Peak Voltage. RMS: The true Root Mean Square voltage over the entire waveform. Max: The maximum amplitude.
  • Page 78 Multicomp-Pro Figure 4-20 Rise Time: Time that the leading edge of the first pulse in the waveform takes to rise from 10% to 90% of its amplitude. Fall Time: Time that the falling edge of the first pulse in the waveform takes to fall from 90% to 10% of its amplitude.

  • Page 79: Customize An Automatic Measurement

    Multicomp-Pro FFR: Time between Source A first falling edge and Source B first rising edge. FFF: Time between Source A first falling edge and Source B first falling edge. LRR: Time between Source A first rising edge and Source B last rising edge. LRF: Time between Source A first rising edge and Source B last falling edge.

  • Page 80: Measure With Cursors

    Multicomp-Pro Screen menu button twice to set the cursor range. Statistics Select Statistics, you can choose On or Off to enable or disable statistics on the measurement value. Statistics reset: Restart statistics on statistics. Measure with Cursors Click to call up the menu panel. Click the Cursor softkey on panel to switch to the ON state and display the cursor menu.
  • Page 81 Multicomp-Pro Time&Voltage for Type, two blue dotted lines displayed along the horizontal direction of the screen, two blue dotted lines displayed along the vertical direction of the screen. Cursor measure window at the left bottom of the screen shows the cursor readout. 4.
  • Page 82 Multicomp-Pro Figure 4-22 Auto Cursor The Cursor Measurement for FFT mode In FFT mode, click to call up the menu panel. Click the Cursor softkey on panel to switch to the ON state and display the cursor menu. The description of the cursor menu in FFT mode is shown as the following table: Function Setting...

  • Page 83: Use Mathematical Manipulation Function

    Multicomp-Pro Perform the following operation steps for the amplitude and frequency cursor measurement of math FFT: 1. Click to call up the menu panel. Click the FFT softkey on panel to switch to the ON state and display the FFT menu. In the bottom menu, select Format.

  • Page 84: Waveform Math

    Multicomp-Pro Factor2 Select the signal source of the factor2 Vertical Click to adjust the vertical position of the (div) Math waveform Vertical Click to adjust the vertical division of the (V/div) Math waveform User Edit fun Intg, Diff, Sqrt, and user defined function Function Vertical Click...

  • Page 85: User Defined Function

    Multicomp-Pro the operation steps are as follows: 1. Click to call up the menu panel. Click the Math softkey on panel to switch to the ON state and display the math menu on the bottom. The pink M waveform appears on the screen. 2.

  • Page 86: Use Autoscale Function

    Multicomp-Pro math menu on the bottom. 2. Select DIR in the bottom menu. 3. In the right menu, select channel as CH1 or CH2. 4. In the right menu, select type, select the desired filter type. 5. In the right menu, select window, select the desired window. 6.

  • Page 87: Use Hor Function

    Multicomp-Pro Then the wave is displayed in the screen, shown as Figure 4-23. Figure 4-23 Autoscale Horizontal-Vertical multi-period waveforms Note: 1. When entering into Autoscale function, a autoscale indicator will be flickering on the top left of the screen. 2. In the mode of Autoscale, the oscilloscope can self-estimate Trigger Mode (Edge, Video).

  • Page 88: Use Fft Function

    Multicomp-Pro Use FFT function FFT refers to the Fourier transform operation on a certain channel. The FFT menu: Function Menu Setting Description Source Select the FFT source. Hamming Rectangle Blackman Window Select window for FFT. Hanning Kaiser Bartlett V RMS V RMS and Decibels are amplitude Decibels Format...
  • Page 89 Multicomp-Pro switch to the ON state and display the FFT menu on the bottom. The pink M waveform appears on the screen. 2. In the bottom menu, select Source. In the right menu, select CH1. 3. In the bottom menu, select Window. In the right menu, select the proper window type.
  • Page 90 Multicomp-Pro Best solution for frequency, worst for magnitude. Best type for measuring the frequency spectrum of nonrepetitive signals and measuring frequency components near DC. Recommend to use for: Rectangle  Transients or bursts, the signal level before and after the event are nearly equal. ...
  • Page 91 Multicomp-Pro are examples for measuring sine wave with a frequency of 1kHz under the selection of six different windows for FFT: Figure 4-24 Hamming window...
  • Page 92 Multicomp-Pro Figure 4-25 Rectangle window Figure 4-26 Blackman window...
  • Page 93 Multicomp-Pro Figure 4-27 Hanning window Figure 4-28 Kaiser window...

  • Page 94: Use Xy Format

    Multicomp-Pro Figure 4-29 Bartlett window Notes for using FFT  Use the default dB scale for details of multiple frequencies, even if they have very different amplitudes. Use the Vrms scale to compare frequencies.  DC component or offset can cause incorrect magnitude values of FFT waveform.

  • Page 95: Use Pass/Fail Function

    Multicomp-Pro The XY menu: Function Setting Description Menu Full Screen Turn on/off the full screen view in XY mode This format is only applicable to Channel 1 and Channel 2. After the XY display format is selected, Channel 1 is displayed in the horizontal axis and Channel 2 in the vertical axis;...
  • Page 96 Multicomp-Pro Pass Signal tested corresponds with the rule Fail Signal tested not correspond with the rule Output Beep Beep when it satisfies the rule Stop Stop once satisfying the rule Info Control the display status of info frame Source Select the source as CH1, CH2, CH3 or CH4 Horizontal Change the Horizontal tolerance value by clicking Rule...

  • Page 97: Use Executive Buttons

    Multicomp-Pro running, the number of Pass/Fail will increase from the former number, not from zero. 5. When the waveform playback mode is on, Pass/Fail is used to test the played-back waveform specially. Use Executive Buttons Executive Buttons include Copy, Default, Run/Stop, Single, Autoset. Copy You can save the waveform by just pushing the Copy panel button in any user interface.

  • Page 98: Print The Screen Image

    Multicomp-Pro The previous source before autoseting. When the previous source has no input signal, the source will be set to the minimum channel which Trigger Source has input signal. When all the channels have no input signal, the source will be set to CH1. Trigger Coupling Trigger Slope Rising edge...
  • Page 99 Multicomp-Pro parameters. The On selection of Ink Saver will print out a copy with a white background. (5) Once you have connected a printer to your oscilloscope and set up print parameters, click Play in the bottom menu to print current screen images.

  • Page 100: Communication With Pc

    Multicomp-Pro 5. Communication with PC The oscilloscope supports communications with a PC through USB, LAN port or Wi-Fi. You can use the Oscilloscope communication software to store, analyze, display the data and remote control. To learn about how to operate the software, you can push F1 in the software to open the help document.

  • Page 101: Using Lan Port

    Multicomp-Pro Using LAN Port Connect directly (1) Connection. Plug in the LAN cable to the LAN port in the right panel of the oscilloscope; plug the other end into the LAN interface of the computer. (2) Set the network parameters of the computer. Since the oscilloscope can not support obtaining an IP address automatically, you should assign a static IP address.
  • Page 102 Multicomp-Pro Figure 5-3 Set the network parameters of the Oscilloscope Software (4) Set the network parameters of the oscilloscope. In the oscilloscope, click icon, click Utility. Select Function in the bottom menu. Select LAN Set in the left menu. In the bottom menu, set the Type item as LAN, and select Set.

  • Page 103: Connect Through A Router

    Multicomp-Pro Connect through a router (1) Connection. Use a LAN cable to connect the oscilloscope with a router, the LAN port of the oscilloscope is in the right panel; the computer should be connected to the router too. (2) Set the network parameters of the computer. Since the oscilloscope can not support obtaining an IP address automatically, you should assign a static IP address.
  • Page 104 Multicomp-Pro Figure 5-6 Set the network parameters of the Oscilloscope Software (4) Set the network parameters of the oscilloscope. In the oscilloscope, click icon, click Utility. Select Function in the bottom menu. Select LAN Set in the left menu. In the bottom menu, set the Type item as LAN, and select Set.

  • Page 105: Using Wi-Fi To Connect With Pc

    Multicomp-Pro Using Wi-Fi to Connect with PC Connect with PC as Wi-Fi Access Point PC should support Wi-Fi. (1) Set the oscilloscope. In the oscilloscope, click the icon, click Utility. Select Function in the bottom menu. Select LAN Set in the left menu. In the bottom menu, set the Type item as WIFI-AP, and select Set in the bottom menu.

  • Page 106: Connect With Pc As Wi-Fi Station

    Multicomp-Pro "Communications" menu item. Set "Connect using" to LAN. Set IP and Port to the same value in the oscilloscope in the step (4). If you can get data normally, the connection is successful. Figure 5-8 Set the network parameters of the Oscilloscope Software Connect with PC as Wi-Fi Station The oscilloscope and PC should be on the same network (LAN).
  • Page 107 Multicomp-Pro (6) Select Save set in the bottom menu to save current settings. (7) Set the network parameters of the computer. Set IP in the computer, the first three bytes is same as the IP in the oscilloscope, the last byte should be different.
  • Page 108 Multicomp-Pro Figure 5-10 Set the network parameters of the Oscilloscope Software...

  • Page 109: Communication With Android Device Via Wi-Fi (Optional)

    Multicomp-Pro 6. Communication with Android Device via Wi-Fi (Optional) The oscilloscope supports communications with Android based smart device via Wi-Fi. You can use the free application software on the Android based smart devices to view the waveform synchronously, perform remote control, the waveform can be saved as image (BMP, PNG) or file (CSV, BIN), or shared via installed sharing apps.
  • Page 110 Multicomp-Pro (6) Select Save set in the bottom menu to save current settings. (7) In Android device, enter the Wi-Fi settings, select the oscilloscope access point to connect, enter the set password. (8) In Android device, launch the application. (9) Click connect on the left. (10) Set IP and Port to the same value as the setting in the oscilloscope.

  • Page 111: Connect With App As Wi-Fi Station

    Multicomp-Pro Connect with APP as Wi-Fi Station (1) In the oscilloscope, click the icon, click Utility. Select Function in the bottom menu. Select LAN Set in the left menu. In the bottom menu, set the Type item as WIFI-STA, and select Set in the bottom menu. (2) In the right menu, select SSID, a keyboard will pop up.
  • Page 112 Multicomp-Pro (8) In Android device, launch the application. (9) Click connect on the left. (10) Set IP and Port to the same value as the setting in the oscilloscope. Click Confirm to connect. Click History to recall the history settings.

  • Page 113: User Interface

    Multicomp-Pro User Interface Horizontal Position Pointer Touch to enter Trigger Level （Selected） Voltage division of CH Touch to Show/hide Time Base & (Touch to select CH, touch stop/continue to menu Horizontal again to turn CH on/off.) synchronize with (see below) Position the oscilloscope.
  • Page 114 Multicomp-Pro Display Menu Adjust the Set the auto The points will be brightness of grid measurement connected with lines Cursor Menu Check to Check to measure time measure voltage The cursor line can be dragged. Cursor Measurement Setting Menu APP Information...

  • Page 115: Gestures Control

    Multicomp-Pro Gestures Control Show the vertical position when gesturing Control the Control the trigger vertical position level of the trigger of the selected source channel Control the horizontal position Pinch and spread vertically to change the voltage division of current channel Pinch and spread horizontally to change the time base...

  • Page 116: Demonstration

    Multicomp-Pro 7. Demonstration Example 1: Measurement a Simple Signal The purpose of this example is to display an unknown signal in the circuit, and measure the frequency and peak-to-peak voltage of the signal. 1. Carry out the following operation steps for the rapid display of this signal: (1) Set the probe menu attenuation coefficient as 10X and that of the switch in the probe switch as 10X (see "How to Set the Probe Attenuation...

  • Page 117: Example 2: Gain Of A Amplifier In A Metering Circuit

    Multicomp-Pro Figure 7-1 Measure period and frequency value for a given signal Example 2: Gain of a Amplifier in a Metering Circuit The purpose of this example is to work out the Gain of an Amplifier in a Metering Circuit. First we use Oscilloscope to measure the amplitude of input signal and output signal from the circuit, then to work out the Gain by using given formulas.

  • Page 118: Example 3: Capturing A Single Signal

    Multicomp-Pro bottom left of the screen (see Figure 7-2). (11) Calculate the amplifier gain with the following formulas. Gain = Output Signal / Input signal Gain (db) = 20×log (gain) Figure 7-2 Waveform of Gain Measurement Example 3: Capturing a Single Signal It's quite easy to use Digital Oscilloscope to capture non-periodic signal, such as a pulse and burr etc.
  • Page 119 Multicomp-Pro display the Acquire menu. (4) Select Acqu Mode in the bottom menu. Select Peak Detect in the right menu. (5) Click to call up the menu panel. Click the Trig Menu softkey on panel to display the Trigger menu. (6) Select the first menu item in the bottom menu.

  • Page 120: Example 4: Analyze The Details Of A Signal

    Multicomp-Pro Example 4: Analyze the Details of a Signal Noise is very common inside most of the electronic signal. To find out what's inside the noise and reduce the level of noise is very important function our oscilloscope is capable to offer. Noise Analysis The level of noise sometime indicates a failure of electronic circuit.

  • Page 121: Example 5: Application Of X-Y Function

    Multicomp-Pro (2) Select Acqu Mode in the bottom menu. (3) Select Average in the right menu, select the average number in the left menu, observe the waveform obtained from averaging the waveforms of different average number. User would see a much-reduced random noise level and make it easy to see more details of the signal itself.
  • Page 122 Multicomp-Pro (3) Push the CH1 to CH4 button to turn on CH1 and CH2, turn off CH3 and CH4. (4) Push the Autoset button, with the oscilloscope turning on the signals of the two channels and displaying them in the screen. (5) Push CH1 button to select CH1, turn the lower knob, and then push CH2 button to select CH2, turn the lower knob, making the amplitudes of two signals equal in the rough.

  • Page 123: Example 6: Video Signal Trigger

    Multicomp-Pro Example 6: Video Signal Trigger Observe the video circuit of a television, apply the video trigger and obtain the stable video output signal display. Video Field Trigger For the trigger in the video field, carry out operations according to the following steps: (1) Click to call up the menu panel.

  • Page 124: Troubleshooting

    Multicomp-Pro 8. Troubleshooting 1. Oscilloscope is powered on but no Display.  Check whether the power connection is connected properly.  Restart the instrument after completing the checks above.  If the problem persists, please contact us and we will be under your service.

  • Page 125: Technical Specifications

    Multicomp-Pro 9. Technical Specifications Unless otherwise specified, the technical specifications applied are for MP four-channel series only, and Probes attenuation set as 10X. Only if the oscilloscope fulfills the following two conditions at first, these specification standards can be reached. ...
  • Page 126 Multicomp-Pro Performance Characteristics Instruction Single CH 500 MSa/s Four CH 100 MSa/s 14 bits Dual CH 100 MSa/s mode Single CH 100 MSa/s Input coupling DC, AC, Ground 1 MΩ±2%, in parallel with 15 pF±5 pF Input impedance 0.001X - 1000X, step by 1 – 2 - 5 Input coupling Max input voltage 400 V (DC + AC Peak)
  • Page 127 Multicomp-Pro Performance Characteristics Instruction Sampling rate / relay ±10 ppm max (Ta = +25℃) time accuracy Single： Interval(△T) accuracy ±(1 interval time+1 ppm×reading+0.6 ns); Average>16： (DC - 100MHz) ±(1 interval time +1 ppm×reading+0.4 ns) Sensitivity 1 mV/div - 10 V/div ±2 V (1 mV/div –...

  • Page 128: Trigger

    Multicomp-Pro Performance Characteristics Instruction Period, Frequency, Mean, PK-PK, RMS, Max, Min, Top, Base, Amplitude, Overshoot, Preshoot, Rise Time, Fall Time, +Pulse Width, -Pulse Width, +Duty Cycle, -Duty Cycle, Delay A→B , Delay A→B , Cycle Automatic RMS, Cursor RMS, Screen Duty, FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF, Phase A→B , Phase A→B...
  • Page 129 Multicomp-Pro Trigger Holdoff 100 ns – 10 s range 50% level setting Input signal frequency ≥ 50 Hz (typical) Edge trigger slope Rising, Falling Support standard NTSC, PAL and SECAM Modulation broadcast systems Video Trigger Line number range 1-525 (NTSC) and 1-625 (PAL/SECAM) Positive pulse：＞, ＜, ＝...

  • Page 130: General Technical Specifications

    Multicomp-Pro Timeout Value 30 ns to 10 s Data Bits 4 bit to 32 bit Data Line Setting H, L, X Signal Type CAN_H, CAN_L, TX, RX Start of Frame, Type of Frame, Identifier, Trigger Condition Data, ID & Data, End of Frame, Missing CAN Trigger Ack, Bit Stuffing Error Baud Rate...

  • Page 131: Appendix

    Multicomp-Pro 10. Appendix Appendix A: Enclosure (The accessories subject to final delivery.) Standard Accessories: Power Cord CD Rom Quick Guide Micro USB Cable Probes Probe Adjust Adapter Stand Holder BNC-SAM Options:...

  • Page 132: Appendix B: General Care And Cleaning

    Multicomp-Pro Appendix B: General Care and Cleaning General Care Do not store or leave the instrument where the liquid crystal display will be exposed to direct sunlight for long periods of time. Caution: To avoid any damage to the instrument or probe, do not exposed it to any sprays, liquids, or solvents.

  • Page 133: Appendix C: Battery Using Guide

    Multicomp-Pro Appendix C: Battery Using Guide Battery level indicator Figure 10-1 Battery level indicator Charging the oscilloscope There will have battery power indication show on the top of panel when oscilloscope power supplied by the battery (if no indication has appeared, see "Display"...

This manual is also suitable for:

Mp720645 mp720776Mp720775

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