multicomp pro MP720025 Manual

Digital storage oscilloscope 100mhz

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User manual (154 pages)

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Digital Storage Oscilloscope 100MHz

Model MP720025

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Page 1 Digital Storage Oscilloscope 100MHz Model MP720025...
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 Rear Panel ..............................6 Control Area ............................. 7 User Interface Introduction ......................
Page 3 How to Set the Display System ......................62 How to Save and Recall a Waveform ..................... 65 How to Record/Playback Waveforms ....................72 How to Clone and Recall a waveform ....................76 How to Implement the Auxiliary System Function Setting ..............81 How to Update your Instrument Firmware.....................
Page 4 Testing Diodes............................110 Testing for Continuity .......................... 110 Measuring Capacitance ........................110 Multimeter Features ........................ 111 Data Hold Mode ........................... 111 Making Relative Measurements ......................111 Information Display ..........................111 Auto or Manual Range ......................... 111 Multimeter Recorder....................... 111 7. Communication with PC ....................114 Using USB Port ........................
Page 5 Appendix B: General Care and Cleaning ................147 Appendix C: Battery Using Guide ..................148...
Page 6: General Safety Requirements
User Manual 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 7: Safety Terms And Symbols
User Manual 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 8 User Manual The diagram of the oscilloscope ground wire connection: Probe Oscilloscope Electrical Outlet Signal Input Power Cord 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...
Page 9: Junior User Guidebook
User Manual 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 How to make a probe compensation How to set the probe attenuation coefficient How to use the probe safely How to implement an self-calibration...
Page 10: Introduction To The Structure Of The Oscilloscope
User Manual Introduction to the Structure of the Oscilloscope This chapter makes a simple description of the operation and function of the front panel of the oscilloscope, enabling you to be familiar with the use of the oscilloscope in the shortest time.
Page 11: Rear Panel
User Manual 9. 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. 10. Power on/off Rear Panel Figure 3-2 Rear Panel 1.
Page 12: Control Area
User Manual Control Area Figure 3-3 Control Area Overview 1. Function button area: Total 11 buttons 2. Waveform generator controls (optional) DAQ: Multimeter Recorder (see "Multimeter Recorder" on P111) P/F: Pass/Fail (see "Pass/Fail" on P82) W.REC: Waveform Record (see "How to Record/Playback Waveforms" on P72) 3.
Page 13: User Interface Introduction
User Manual User Interface Introduction Figure 3-4 Illustrative Drawing of Display Interfaces Waveform Display Area. Run/Stop (touchable on touchscreen) (see "How to Use Executive Buttons" on P95) The state of trigger, including: Auto: Automatic mode and acquire waveform without triggering. Trig: Trigger detected and acquire waveform.
Page 14 User Manual 11. Wi-Fi is activated. 12. It indicates that there is a USB disk connecting with the oscilloscope. 13. Indicating battery power status (see "Display" on P81). 14. Multimeter window. 15. The waveform of CH1. 16. The pointer shows the trigger level position of the source in trigger menu. 17.
Page 15: How To Implement The General Inspection
User Manual 32. The blue pointer indicates the grounding datum point (zero point position) of the waveform of the CH1 channel. 33. The yellow pointer indicates the grounding datum point (zero point position) of the waveform of the CH1 channel. How to Implement the General Inspection After you get a new oscilloscope, it is recommended that you should make a check on the instrument according to the following steps:...
Page 16: How To Implement The Function Inspection
User Manual 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. Connect the power cord to a power source. Long press the button on the bottom left of the instrument.
Page 17: How To Set The Probe Attenuation Coefficient
User Manual 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: Set the attenuation coefficient of the probe on the menu as 10X and that of the switch in the probe as 10X (see "How to Set the Probe Attenuation Coefficient"...
Page 18: How To Use The Probe Safely
User Manual 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 19: How To Implement Self-Calibration
User Manual Warning: To avoid electric shock, always keep your finger behind the safety guard ring of the probe during the operation. To protect you from suffering from the electric shock, do not touch any metal part of the probe tip when it is connected to the power supply. Before making any measurements, always connect the probe to the instrument and connect the ground terminal to the earth.
Page 20 User Manual Figure 3-10 Vertical Control Zone The following practices will gradually direct you to be familiar with the using of the vertical setting. 1. Press CH1, CH2, CH3 or CH4 to select the desired channel. 2. Use the Vertical Position rotary control to show the selected channel waveform in the center of the waveform window.
Page 21: Introduction To The Horizontal System
User Manual Introduction to the Horizontal System Shown as Figure 3-11, there are a button and two rotary controls in the Horizontal Controls. The following practices will gradually direct you to be familiar with the setting of horizontal time base. Figure 3-11 Horizontal Control Zone Turn the Horizontal Scale rotary control to change the horizontal time base setting and observe the consequent status information change.
Page 22: Touchscreen Controls (Touchscreen Is Optional)
User Manual Figure 3-12 Trigger Control Zone Push the Trigger Menu button and call out the trigger menu. With the operations of the menu selection buttons, the trigger setting can be changed. Use the Trigger Level rotary control to change the trigger level setting. By turning the Trigger Level rotary control, the trigger indicator in the screen will move up and down.
Page 23 User Manual  Adjust value on the menu item: Click to increase the value of cursor position Click to show the Move the cursor soft keyboard Click to decrease the value of cursor position  Scroll the list: If there is a scroll bar in the left menu or in the file system window, you can swipe up and down to scroll the list.
Page 24 User Manual Note: Swipe up/down or left/right in this area, you can make the icon appear and control it. 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...
Page 25 User Manual 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 26 User Manual 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 27 User Manual Control the vertical Switch to select the lines cursor line...
Page 28: Advanced User Guidebook
User Manual 4. Advanced User Guidebook Up till now, you have already been familiar with the basic operations of the function areas, buttons and rotary controls 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 29: How To Set The Vertical System
User Manual How to Set the Vertical System The VERTICAL CONTROLS includes three menu buttons such as CH1, CH2, CH3, CH4 and Math, and two rotary controls such as Vertical Position, Vertical Scale. Setting of CH1 - CH4 Each channel has an independent vertical menu and each item is set respectively based on the channel.
Page 30 User Manual (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. 2. To adjust the probe attenuation For correct measurements, the attenuation coefficient settings in the operating menu of the Channel should always match what is on the probe (see "How to Set the Probe Attenuation Coefficient"...
Page 31: Use Mathematical Manipulation Function
User Manual Use Mathematical Manipulation Function The Mathematical Manipulation function is used to show the results of the addition, multiplication, division and subtraction operations between two channels, the FFT operation for a channel, advanced math feature including Intg, Diff, Sqrt, user defined function, and digital filter.
Page 32: Waveform Math
User Manual User Intg, Diff, Sqrt, and user defined function Function channel Select channel Only the signals whose frequencies are low-pass lower than the current cut-off frequency can pass the filter. Only the signals whose frequencies are high-pass greater than the current cutoff frequency can pass the filter.
Page 33: User Defined Function
User Manual 6. Select Vertical (div) in the right menu, turn the M rotary control to adjust the vertical position of Math waveform. 7. Select Vertical (V/div) in the right menu, turn the M rotary control to adjust the vertical division of Math waveform.
Page 34: Using Fft Function
User Manual Using FFT function The FFT (fast Fourier transform) math function mathematically converts a time-domain waveform into its frequency components. It is very useful for analyzing the input signal on Oscilloscope. You can match these frequencies with known system frequencies, such as system clocks, oscillators, or power supplies.
Page 35 User Manual 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 36 User Manual Figure 4-1 Hamming window Figure 4-2 Rectangle window...
Page 37 User Manual Figure 4-3 Blackman window Figure 4-4 Hanning window...
Page 38 User Manual Figure 4-5 Kaiser window Figure 4-6 Bartlett window...
Page 39: Use Vertical Position And Scale Rotary Controls
User Manual 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. To minimize the DC component, choose AC Coupling on the source signal.
Page 40: How To Set The Horizontal System
User Manual Figure 4-7 Information about Vertical Scale How to Set the Horizontal System Horizontal control system includes Horizontal HOR key, Horizontal Position rotary control and Horizontal Scale rotary control.  Horizontal Position rotary control: Adjust the horizontal positions of all channels (including mathematical operations).
Page 41: Magnifier (For Specific Models)
User Manual Wave selection Main Window Time base of Horizontal position of Zoom window Zoom window Horizontal zoom factor Zoom Window Figure 4-8 Waveform Horizontal Zooming Mode In horizontal zoom mode, the Horizontal Position rotary control adjusts the horizontal position of the horizontal zoom window. The Horizontal Scale rotary control adjusts the horizontal magnification, and the horizontal time base of the horizontal zoom window also changes.
Page 42 User Manual Magnifier settings menu description： Setting Description Function Menu Turn on Magnifier Magnifier Turn on Horizontal Zooming. Turn the M rotary control to set the vertical magnification. Because the magnifier window size does Ratio change, the larger this multiple is, the smaller the vertical height of the waveform selection area is.
Page 43: How To Set The Trigger/Decoding System
User Manual When the magnifier function is on, press the Cursor key on panel to call up the cursor measurement menu. In the bottom menu, select Window as the Main or Extension to make the cursor line appear in the main window or magnifier window. How to Set the Trigger/Decoding System Trigger determines when DSO starts to acquire data and display waveform.
Page 44 User Manual Video Trigger: Trigger on fields or lines for standard video signal. Pulse Trigger: Find pulses with certain widths. Slope Trigger: The oscilloscope begins to trigger according to the signal rising or falling speed. Runt Trigger: Trigger pulses that pass through one trigger level but fail to pass through the other trigger level.
Page 45 User Manual Holdoff 100 ns - 10 s, turn the M rotary control or click set time interval before another trigger occur, press panel button or click to move cursor Reset to choose which digit to be set. Set Holdoff time as default value (100 ns). Trigger Level: trigger level indicates vertical trig position of the channel, turn the trig level rotary control or slide on the touch screen upward and downward to move trigger level, during setting, an orange red dotted line displays to show trig position,...
Page 46 User Manual 3. Pulse Width Trigger Pulse trigger occurs according to the width of pulse. The abnormal signals can be detected through setting up the pulse width condition. In Pulse Width Trigger mode, the trigger setting information is displayed on bottom ，indicates that trigger type right of the screen, for example, is pulse width, trigger source is CH1, coupling is DC, polarity is positive, and trigger...
Page 47 User Manual specified time. In Slope Trigger mode, the trigger setting information is displayed on bottom right of ，indicates that trigger type is slope, the screen, for example, trigger source is CH1, slope is rising, 0.00mV is the differential between up level and low level threshold.
Page 48 User Manual 5.Runt Trigger Trigger pulses that pass through one trigger level but fail to pass through the other trigger level. Shown as below figure, In Runt Trigger mode, the trigger setting information is displayed on bottom right of ，indicates that trigger type is runt, the screen, for example, trigger source is CH1, polarity is positive, 0.00mV is the differential between up level and low level threshold.
Page 49 User Manual Adjust the M rotary control or click to set pulse width, press panel button or click to 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 50 User Manual Windows Trigger menu list: MENU SETTING INSTRUCTION Single Windows Set vertical channel trigger type as Windows trigger. Mode 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 Adjust the M rotary control or click to set the up Up Level...
Page 51 User Manual 7.Timeout Trigger The oscilloscope triggers when the time interval from when the rising edge (or the falling edge) passes through the trigger level to when the neighbouring falling edge (or the rising edge) passes through the trigger level is greater than the timeout time set.
Page 52 User Manual 8.Nth Edge trigger The oscilloscope triggers on the Nth edge that appears on the specified idle time. As figure shown below, the oscilloscope should trigger on the second falling edge after the specified idle time and the idle time should be set to P1/P2/P3/P4 < Idle Time < M. Wherein, M, P1, P2, P3 and P4 are positive or negative pulse width participating in the counting.
Page 53: Logic Trigger
User Manual Set idle time before the edge counting in Nth Edge Trigger. Adjust M rotary control or click to set Idle Time idle time press panel button or click Configure to move cursor to choose which digit to be set. Available range is 30ns-10s, default 100ns.
Page 54: Bus Trigger
User Manual 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 level, Input Mode Rise and Fall.
Page 55 User Manual Format as shown in the figure below, RS232 Trigger RS232 Trigger menu list: MENU SETTING INSTRUCTION Bus Type RS232 Set vertical channel bus type as RS232 trigger. Sour Select CH1 as the trigger source. Select CH2 as the trigger source. Select CH3 as the trigger source.
Page 56 User Manual common baud. Custom Baud: adjust M rotary control to choose baud, ranges from 50 to 10,000,000. Data Bits：Set as 5、6、7、8 bits. Data Data： Set data according to data bits, ranges from 0-31, 0-63, 0-127 or 0-255. Mode Auto Acquire waveform even no trigger occurred Normal Acquire waveform when trigger occurred...
Page 57 User Manual acknowledgement of SCL clock position. Trigger on the read or write bit when the preset Address address is met. Set Address Bits to be “7”、“8”or“10”. Addr Bits Addr Set address according to the preset address bits, address range is 0-127, 0-255, 0-1023 respectively. Set Data Direction to be Read or Write.
Page 58 User Manual SPI Trigger menu list: MENU SETTING INSTRUCTION Bus Type Set vertical channel bus type as SPI trigger. Set SCL. Source Set SDA. Set the minimum time that SCL must be idle, that is a period of SCL, available range 100ns-10s. Time out means SCL keeps idle for a specified time before oscilloscope starts to search for the data(SDA) on Time Out...
Page 59 User Manual In CAN bus trigger mode, the trigger setting information is displayed on bottom ，indicates that trigger right of the screen, for example, type is CAN, CH1 trigger level is -126 mV. CAN Trigger menu list: MENU SETTING INSTRUCTION Bus Type Set vertical channel bus type as CAN trigger.
Page 60: Bus Decoding (Optional)
User Manual Set the number of bytes with the Byte M rotary control. The range is 1 Length Configure to 8. Data (Bottom Set the data with the M rotary menu) Data control and Direction key on the front panel. Format Select Standard or Extended.
Page 61 User Manual  When decoding, if "Parity" is not set to "None", and the check bit error is detected, two red error marks will be displayed in the corresponding position in the waveform. RS232 Decoding menu list: MENU SETTING INSTRUCTION Bus Type RS232 Set bus type of decoding as RS232.
Page 62 User Manual (4) Push the Decode button on the front panel. Select bus type as I2C. set parameters based on the characteristics of the signal. When the parameters are set correctly, the information carried by the signal will be displayed. 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.
Page 63 User Manual stable display. Refer to "SPI Trigger" on page 52. (4) Push the Decode button on the front panel. 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 64 User Manual 4. CAN Decoding 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 65: How To Operate The Function Menu
User Manual 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 storage EventTable device. ASCII Select "ON"...
Page 66 User Manual The description of PERF Mode menu (only for the oscilloscope with A in the model name) is shown as follows: Function Menu Setting Description 8-bit PERF Mode 12-bit Set the vertical resolution (A/D) 14-bit The description of the Intrpl menu is shown as follows: Function Menu Setting Description...
Page 67: How To Set The Display System
User Manual Figure 4-11 Linear interpolation How to Set the Display System Push the Display button and the Display menu is shown as follows: Function Menu Setting Description 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.
Page 68 User Manual Persist When the Persist function is used, the persistence display effect of the picture tube oscilloscope can be simulated. The reserved original data is displayed in fade color and the new data is in bright color. (1) Push the Display button. (2) Select Persist&Color in the bottom menu.
Page 69 User Manual Figure 4-12 The color temperature function is on XY Format 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 70: How To Save And Recall A Waveform
User Manual Counter It is a 6-digit single-channel counter. The counter can only measure the frequency of the triggering channel. The frequency range is from 2Hz to the full bandwidth. Only if the measured channel is in Edge mode of Single trigger type, the counter can be enabled.
Page 71 User Manual Recall or close the waveform stored in the current object address. When the show is ON, if the current object address has been used, the stored waveform will be shown, Show address number relevant information will be displayed at the top left of the screen;...
Page 72 User Manual Save and Recall the Waveform The oscilloscope can store 100 waveforms, which can be displayed with the current waveform at the same time. The stored waveform called out can not be adjusted. In order to save the waveform of CH1, CH2 and Math into the address 1, the operation steps should be followed: 1.
Page 73 User Manual Tip: Whatever the Type of save menu is set, you can save the waveform by just pressing the Copy panel button in any user interface. If the Storage of the save menu is set as "External", you should install the USB disk. Please refer to the contents below to install the USB disk and name the file to be saved.
Page 74 User Manual Figure 4-13: 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 4-14: Format the USB disk warning 5. Set File System as FAT32, Allocation unit size 4096. Check "Perform a quick format"...
Page 75 User Manual Figure 4-15: Formatting the USB disk setting 6. Formatting process. Figure 4-16: 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 76 User Manual 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 4-17: Reload Disk 4.
Page 77: How To Record/Playback Waveforms
User Manual 6. Click Apply at the top left of the menu. Then click Yes on the pop-up warning to begin formatting. Figure 4-20: Apply setting 7. Formatting process Figure 4-21: Format process Format the USB disk successfully Figure 4-22: Format successfully How to Record/Playback Waveforms Push Save button.
Page 78 User Manual 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. Record: To record wave according to the interval until it reaches the end frame set. Record menu (Internal Storage) shows as follows: Menu Setting...
Page 79 User Manual Menu Setting Instruction Turn the M rotary control to select the number of Start frame Storage start frame to store (1 - 1000) Mode Turn the M rotary control to select the number of end Frame Set End frame frame to store (1 - 1000) Save Save the waveform record file to the internal memory...
Page 80 User Manual 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 81: How To Clone And Recall A Waveform
User Manual Figure 4-23: Play back waveform by software How to Clone and Recall a waveform Push Save button. Select Type in the bottom menu, in the left menu, turn the M rotary control to select Clone. You can clone one or two channel waveforms between two cursors, and save it as a cloned waveform into the internal memory or a USB memory device.
Page 82 User Manual Turn the M rotary control to move line a. Turn the M rotary control to move line b. Two cursors are linked. Turn the M rotary control to move the pair of cursors. Set the cursors to select the entire screen automatically. The waveform information is displayed at the left bottom corner of the screen.
Page 83 User Manual Save the waveform onto a USB memory device Insert a USB memory device into the port on the front panel. If the icon appears on the top right of the screen, the USB memory device is installed successfully. If the USB External memory device cannot be recognized, format the USB memory device according to the...
Page 84 User Manual (4) Turn the M rotary control to select an object in the left menu. (5) Select Output in the right menu. To output the waveform stored in the USB memory device through the generator: (The generator is optional.) (1) Push button to set the output channel of the generator.
Page 85 User Manual TYPE Model 12 bytes char BYTE Parameter name Meaning Value Comment BYTE Data length in bit 4 bytes int SIZE Parameter name Meaning Value Comment SIZE File size 4 bytes int Used to check the file integrity VOLT Parameter name Meaning Value...
Page 86: How To Implement The Auxiliary System Function Setting
User Manual How to Implement the Auxiliary System Function Setting ●Config Push the Utility button, select Function in the bottom menu, select Configure in the left menu. The description of Configure Menu is shown as the follows: Function Menu Setting Description Choose the display language of the operating Language...
Page 87 User Manual The description of Adjust Menu is shown as the follows: Function Menu Description Self Cal Carry out the self-calibration procedure. Default Call out the factory settings. ProbeCh. Check whether probe attenuation is good. Do Self Cal (Self-Calibration) The self-calibration procedure can improve the accuracy of the oscilloscope under the ambient temperature to the greatest extent.
Page 88 User Manual Source Select the source as CH1, CH2, CH3 or CH4 Horizontal Change the Horizontal tolerance value by turning the M rotary control Rule Vertical Change the Vertical tolerance value by turning the M rotary control Create Use the rule set as testing rule Number Select any one from Rule1 - Rule8 as your rule name SaveRule...
Page 89: How To Update Your Instrument Firmware
User Manual Output menu item in the bottom menu sets the output type of Trig Out(P/F) port on Rear Panel. In the bottom menu, select Output. The description of Output menu is shown as the follows: Function Setting Description Menu Trig level Output trig signal synchronously Pass/fail...
Page 90 User Manual on the front panel. If the icon appears on the top right of the screen, the USB memory device is installed successfully. If the USB memory device cannot be detected, format the USB memory device according to the methods in "USB disk Requirements"...
Page 91: How To Measure Automatically
User Manual Long press the button to power on the instrument. How to Measure Automatically Push the Measure button to display the menu for the settings of the Automatic Measurements. At most 8 types of measurements could be displayed on the bottom left of the screen.
Page 92 User Manual The automatic measurement can not be performed in the following situation: 1) On the saved waveform. 2) On Waveform Math waveform. 3) On the Video trigger mode. On the Scan format, period and frequency can not be measured. Measure the period, the frequency of the CH1, following the steps below: 1.
Page 93 User Manual Figure 4-25 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. The most positive peak voltage measured over the entire waveform. Min: The minimum amplitude.
Page 94 User Manual Figure 4-26 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 95: How To Measure With Cursors
User Manual reference crossing in the waveform. RiseEdgeCnt : The number of positive transitions from the low reference value to the high reference value in the waveform. FallEdgeCnt : The number of negative transitions from the high reference value to the low reference value in the waveform. Area : The area of the whole waveform within the screen and the unit is voltage-second.
Page 96 User Manual Display the channel to which the cursor Source CH1 to CH4 measurement will be applied. Perform the following operation steps for the time and voltage cursor measurement of the channel CH1: Push Cursor to display the cursor menu. Select Source in the bottom menu, select CH1 in the right menu.
Page 97 User Manual Auto Cursor For the AutoCursr type, the horizontal cursors are set as the intersections of the vertical cursors and the waveform. Auto Cursor Figure 4-28 Auto Cursor The Cursor Measurement for FFT mode In FFT mode, push the Cursor button to turn cursors on and display the cursor menu. The description of the cursor menu in FFT mode is shown as the following table: Function Setting...
Page 98: How To Use Autoscale
User Manual Turn the M rotary control to move line a. Turn the M rotary control to move line b. Line Two cursors are linked. Turn the M rotary control to move the pair of cursors. Display the channel to which the cursor Source Math FFT measurement will be applied.
Page 99 User Manual Follow-up and adjust both vertical and horizontal settings. Mode Follow-up and only adjust horizontal scale. Follow-up and only adjust vertical scale. Show Multi-period waveforms. Wave Only show one or two periods. To measure the signal using autoscale, you can do as the follows: 1.
Page 100: How To Use Built-In Help
User Manual 4. At the mode of Autoscale, DSO is always set as DC coupling with AUTO triggering, the holdoff is set to 100ns. 5. At the mode of Autoscale, if adjust the vertical position, voltage division, trigger level or time scale, the oscilloscope will pause the Autoscale function. To resume Autoscale, push the Autoset front panel button.
Page 101 User Manual Trigger Level 3/5 of the Vpk-pk Trigger Mode Auto Display Format Force Stop Help Exit Pass/Fail Inverted Zoom Mode Exit Record Length If greater than 10M, it will be set to 10M Waveform Math or Waveform Record Slow-scan Persist Note: When the autoscale is turned on and running, the Autoset button is invalid.
Page 102: How To Print The Screen Image
User Manual Falling Edge： Display the falling edge of square waveform Cancel Autoset：Go back to display the upper menu and waveform information Note: The Autoset function requires that the frequency of signal should be no lower than 20Hz, and the amplitude should be no less than 5mv. Otherwise, the Autoset function may be invalid.
Page 103: Use The Arbitrary Function Generator (Optional To Specific Models)
User Manual 5. Use the Arbitrary Function Generator (Optional to specific models) The function generator provides 4 basic waveforms (sine, square, ramp, and pulse) and 46 built-in arbitrary waveforms (Noise, Exponential rise, Exponential fall, Sin(x)/x, Staircase, etc.). You can create a user-definable waveform and save it to internal storage or USB device.
Page 104: To Set Signals
User Manual Push button to switch between CH1 menu, CH2 menu, and Channel Copy menu.  To Turn On/Off Output of Channels Push to turn on/off output of the corresponding channel. The indicator will be lighted when the corresponding channel is tuned on. ...
Page 105: To Set The Period
User Manual Three methods to change the chosen parameter:  Turn the M rotary control change the value of cursor position. Press direction key to move the cursor.  Use the input keyboard: Push the M rotary control, an input keyboard will pop up. Turn the M rotary control to move between the keys.
Page 106: To Set The Offset
User Manual select it again to switch to Amplitude). Set the parameter in the right menu. To Set the Offset Select Offset in the right menu (if Offset is not displayed, select Low Level and select it again to switch to Offset). Set the parameter in the right menu. To Set the High Level Select High Level in the right menu (if High Level is not displayed, select Amplitude and select it again to switch to High Level).
Page 107: To Output Arbitrary Signals
User Manual To Output Arbitrary Signals The menu items of Arbitrary waveform are: Frequency/Period, Start Phase, Amplitude/High Level, Offset/Low Level, New, File Browse, Built-in. You can operate the menu by using the menu selection buttons on the right. To set the Frequency/Period, Start Phase, Amplitude/High Level, Offset/Low Level, please refer to To Output Sine Signals on page 99.
Page 108: File Browse
User Manual If a USB device is connected, and you want to save the waveform to it, select Memory in the right menu as USB. The instrument lists a directory of the folders and files on the USB memory device. Select a folder or file using the M rotary control to scroll up and down the list.
Page 109 User Manual (2) Select Arb in the bottom menu, select Others in the right menu, and select Built-in. (3) Select Common, Math, Window or Others in the right menu. E.g. select Others to enter the following interface. (4) Turn the M rotary control to select the desired waveform (or touch if the LCD is touchscreen).
Page 110: Frequency Response Analysis
User Manual Square function HaverSine HaverSine function Lorentz Lorentz function Natural logarithm function Cubic Cubic function Cauchy Cauchy distribution Besselj BesselI function Bessely BesselII function Error function Airy Airy function Windows Rectangle Rectangle window Gauss Gauss distribution Hamming Hamming window Hann Hanning window Bartlett...
Page 111 User Manual Function Setting Description Menu Check to enable FRA function and show FRA scale FRA line and chart. When unchecked, FRA information is shown on the FRA window. Transparent When checked, FRA information is shown on the FRA waveform display area. Turn Multipurpose rotary control to move the marker, Marker view measured gain and phase values.
Page 112: Use The Multimeter (Optional)
User Manual 6. Use the Multimeter (Optional) Input Terminals The input terminals are on the back of the oscilloscope, which marked as 10A, mA, COM, V/Ω/C. Figure 6-1 Multimeter Input Terminals DMM Menu Push DMM button on the front panel to enter/exit the multimeter function. The button backlight will be lighted when the multimeter function is enabled.
Page 113: Dmm Information Window
User Manual When making relative measurements, reading is the Relative difference between a stored reference value and the input signal. Show Info Show/Hide the information window ON OFF Configure Auto Range Select auto range mode Switch Range Select manual range mode, press to switch range Current Select the current range.
Page 114: Making Multimeter Measurements
User Manual 6. Multimeter recorder (See Multimeter Recorder " " on page 111 7. The reference value of the relative measurement. 8. Range of measuring current: mA or 10A. 9. AC or DC when measuring current or voltage. Making Multimeter Measurements Measuring AC or DC Current To measure a AC or DC current which is less than 400 mA, do the following: (1) Push DMM button on the front panel.
Page 115: Measuring Resistance
User Manual (3) Probe the test points and read the display. Measuring Resistance (1) Push DMM button on the front panel. Select in the bottom menu, select R. (2) Connect the black test lead to the COM terminal on the back of the oscilloscope and the red test lead to the V/Ω/C terminal.
Page 116: Multimeter Features
User Manual Multimeter Features Data Hold Mode You can freeze the display for any function. (1) Select Hold in the bottom menu as ON. will be shown on the display. HOLD (2) Select OFF to exit this mode. Making Relative Measurements When making relative measurements, reading is the difference between a stored reference value and the input signal.
Page 117 User Manual Function Menu Setting Description Interval Set the record interval ( 0.5s - 10s, step by 0.5s) "d h m s" represents day, hour, minute, second. E.g. "1 02:50:30" represents a day and 2 hours, 50 minutes and 30 seconds. Duration Press Duration to switch between the time unit, turn the M rotary control to set the value.
Page 118 User Manual 10. When internal storage is selected: You can export the internal record file to a USB memory device. Insert the USB memory device into the front-panel USB port on your instrument. Select Export in the bottom menu. The instructions will be shown on the screen.
Page 119: Communication With Pc
User Manual 7. 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 120: Using Lan Port
User Manual Using LAN Port Connect directly (1) Connection. Plug in the LAN cable to the LAN port in the back 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 121: Connect Through A Router
User Manual Figure 7-3 Set the network parameters of the Oscilloscope Software (4) Set the network parameters of the oscilloscope. In the oscilloscope, push the Utility button. 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 122 User Manual set the IP address to 192.168.1.71, Subnet mask is 255.255.255.0, Default gateway is 192.168.1.1. Figure 7-5 Set the network parameters of the computer (3) Set the network parameters of the Oscilloscope Software. Run the software on the computer; choose the "Ports-settings" of the "Communications" menu item. Set "Connect using"...
Page 123: Using Wi-Fi To Connect With Pc (Optional)
User Manual (4) Set the network parameters of the oscilloscope. In the oscilloscope, push the Utility button. 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. In the right menu, set IP and Port to the same value as the "Ports-settings"...
Page 124: Connect With Pc As Wi-Fi Station
User Manual (6) Select Save set in the bottom menu to save current settings. (7) Set Wi-Fi connection on PC. Enter the Wi-Fi settings on PC, select the oscilloscope access point to connect, enter the set password. (8) Set the network parameters of the Oscilloscope Software. Run the software on the computer;...
Page 125 User Manual 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. Input the name of the Wi-Fi hotspot.
Page 126 User Manual Figure 7-9 Set the network parameters of the computer (8) Set the network parameters of the Oscilloscope Software. Run the software on the computer; choose the "Ports-settings" of the "Communications" menu item. Set "Connect using" to LAN. Set IP and Port to the same value in the oscilloscope. If you can get data normally, the connection is successful.
Page 127: Communication With Android Device Via Wi-Fi (Optional)
User Manual 8. 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 128 User Manual (3) In the right menu, select Encryption, push again to set the type. Open type needs no password. WEP or WPA type need to set the password. You can select WPA. In the right menu, select Password, use the keyboard to set the Wi-Fi password (8 to 32 characters).
Page 129: Connect With App As Wi-Fi Station
User Manual (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. Connect with APP as Wi-Fi Station (1) In the oscilloscope, push the Utility button. Select Function in the bottom menu. Select LAN Set in the left menu.
Page 130 User Manual (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.
Page 131: User Interface
User Manual 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 132 User Manual Control Menu Touch to enter the control Touch to autoset interface of the generator Control Interface of the Generator Turn on/off output Select Select of selected channel channel waveform Set the parameters of current waveform Display Menu Adjust the Set the auto The points will be brightness of grid...
Page 133: Gestures Control
User Manual Cursor Menu Check to Check to measure time measure voltage The cursor line can be dragged. Cursor Measurement Setting Menu APP Information Gestures Control Show the vertical position when gesturing Control the Control the trigger vertical position level of the trigger of the selected source channel...
Page 134 User Manual 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 135: Demonstration
User Manual 9. 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. 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 Coefficient"...
Page 136: Example 2: Gain Of A Amplifier In A Metering Circuit
User Manual Figure 9-1 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.
Page 137: Example 3: Capturing A Single Signal
User Manual Gain = Output Signal / Input signal Gain (db) = 20×log (gain) Figure 9-2 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 138: Example 4: Analyze The Details Of A Signal
User Manual (8) Select Source in the bottom menu. Select CH1 in the right menu. (9) Select Coupling in the bottom menu. Select DC in the right menu. (10) In the bottom menu, select Slope as (rising). (11) Turn the Trigger Level rotary control and adjust the trigger level to the roughly 50% of the signal to be measured.
Page 139 User Manual functions acts an important role to help you to find out the details of these noise. Here is how we do it: (1) Push the Acquire button to display the Acquire menu. (2) Select Acqu Mode in the bottom menu. (3) Select Peak Detect in the right menu.
Page 140: Example 5: Application Of X-Y Function
User Manual Figure 9-5 Reduce Noise level by using Average function Example 5: Application of X-Y Function Examine the Phase Difference between Signals of two Channels Example: Test the phase change of the signal after it passes through a circuit network. X-Y mode is a very useful when examining the Phase shift of two related signals.
Page 141 User Manual in the Lissajous graph form. (8) Turn the Vertical Scale and Vertical Position rotary controls, optimizing the waveform. (9) With the elliptical oscillogram method adopted, observe and calculate the phase difference (see Figure 9-6). The signal must be centered and kept in the horizontal direction.
Page 142: Example 6: Video Signal Trigger
User Manual 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) Push the Trigger Menu button to display the trigger menu.
Page 143: 10. Troubleshooting
User Manual 10. Troubleshooting 1. Oscilloscope is powered on but no Display.  Check whether the power connection is connected properly.  Check whether the fuse which is beside the AC power input jack is blew (the cover can be pried open with a straight screwdriver). ...
Page 144 User Manual Persist " on P63). It's normal as the Oscilloscope is working hard on many more data points.
Page 145: 11. Technical Specifications
All specification standards can be fulfilled, except one(s) marked with the word "Typical". Oscilloscope Performance Characteristics Instruction MP720025 Bandwidth 100 MHz MP720021 MP720025 8 bits Vertical Resolution (A/D) MP720021 8 bits Channel MP720025 45,000 wfms/s Waveform Capture Rate MP720021 70,000 wfms/s Multi-level Gray Scale Display & Color Temperature Display...
Page 146 10MHz: 40 : 1 isolation Time delay between 150ps channel(typical) 0.05 Sa/s - Four CH 250 MSa/s 0.05 Sa/s - MP720025 Dual CH* 500 MSa/s 0.05 Sa/s - Single CH 1 GSa/s Sampling rate range 0.05 Sa/s - Four CH 500 MSa/s 0.05 Sa/s -...
Page 147 User Manual MP720025 100 MHz Analogue Bandwidth MP720021 MP720025 DC to 100 MHz Single Bandwidth MP720021 ≥10 Hz (at input, AC coupling, -3 dB) Low Frequency Rise time (at input, MP720025 ≤ 3.5 ns Typical) MP720021 1 mV ±4% MP720025 ≥2 mV...
Page 148: Trigger
User Manual Support Counter * For MP720025, Max Sample rate (real time) for Dual CH should meet either following condition:  CH1&CH2 on, CH3&CH4 off;  CH1&CH2 off, CH3&CH4 on. For MP720021, Max Sample rate (real time) for Dual CH should meet the following...
Page 149: Waveform Generator (Optional)
Common, Custom Sample Point 5% to 95% Frame Type Data, Remote, Error, Overload Waveform Generator (Optional) Dual channels AG is optional to MP720025; single channel AG is optional to MP720021. Performance Instruction Characteristics Max Frequency Output 25 MHz Sample Rate...
Page 150: Multimeter (Optional)
User Manual Standard Waveforms Sine, Square, Ramp, and Pulse Exponential Rise, Exponential Fall, Sin(x)/x, Step Wave, Noise, and others, total 46 built-in waveforms, and Arbitrary Waveforms user-defined arbitrary waveform Multimeter (Optional) Performance Instruction Characteristics Full scale 3¾ digits (Max 4000 – count) reading Diode 0 V - 1 V...
Page 151: General Technical Specifications
(Typical) Frequency (Typical) Square wave of 1 KHz Power 100V – 240 VACRMS, 50/60 Hz, CAT Ⅱ Mains Voltage ＜15 W MP720025 Power Consumption ＜24 W MP720021 Fuse 2 A, T class, 250 V 3.7V, 13200mAh The battery can last approximately 2 to 4 hours (differ in Battery (optional) models) after a full recharge.
Page 152: 12. Appendix
User Manual 12. Appendix Appendix A: Enclosure (The accessories subject to final delivery.) Standard Accessories: Power Cord CD Rom Quick Guide USB Cable Probe Probe Adjust Options: Multimeter Lead Capacitance Battery Soft Bag Ext Module...
Page 153 User Manual 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 154 User Manual Appendix C: Battery Using Guide Battery level indicator Figure 12-1 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" on P81 ). indicates the battery is nearly used up.

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