multicomp pro MP720024 User manual

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Digital Storage Oscilloscope 100MHz
Model MP720024

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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
Front Panel Menu Buttons........................................................................................................................6
Rear Panel ................................................................................................................................................6
Control Area.............................................................................................................................................7
User Interface Introduction........................................................................................................8
How to Implement the General Inspection ............................................................................. 10
How to Implement the Function Inspection............................................................................ 10
How to Implement the Probe Compensation.......................................................................... 11
How to Set the Probe Attenuation Coefficient........................................................................ 12
How to Use the Probe Safely.....................................................................................................13
How to Implement Self-calibration.......................................................................................... 13
Introduction to the Vertical System.........................................................................................14
Introduction to the Horizontal System....................................................................................15
Introduction to the Trigger System ......................................................................................... 15
4. Advanced User Guidebook ............................................................................................ 17
How to Set the Vertical System................................................................................................18
Use Mathematical Manipulation Function ............................................................................. 20
Waveform math......................................................................................................................................21
User defined function.............................................................................................................................22
Digital Filter...........................................................................................................................................22
Using FFT function ................................................................................................................................22
Use Vertical Position and Scale Rotary controls ....................................................................25
How to Set the Horizontal System ...........................................................................................25
Zoom the Waveform ..............................................................................................................................26
How to Set the Trigger/Decoding System................................................................................26
Single Trigger.........................................................................................................................................27
Alternate Trigger (Trigger mode: Edge) ................................................................................................35
Logic Trigger..........................................................................................................................................35
Bus Trigger.............................................................................................................................................36
Bus Decoding.........................................................................................................................................42
How to Operate the Function Menu........................................................................................46
How to Implement Sampling Setup .......................................................................................................46
How to Set the Display System..............................................................................................................49

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How to Save and Recall a Waveform.....................................................................................................50
How to Record/Playback Waveforms ....................................................................................................57
How to Clone a waveform......................................................................................................................61
How to Implement the Auxiliary System Function Setting....................................................................63
How to Measure Automatically..............................................................................................................67
How to Measure with Cursors................................................................................................................71
How to Use Autoscale............................................................................................................................75
How to Use Built-in Help.......................................................................................................................77
How to Use Executive Buttons...............................................................................................................77
How to Print the Screen Image...............................................................................................................79
5. Communication with PC............................................................................................... 80
Using USB Port.......................................................................................................................... 80
Using LAN Port......................................................................................................................... 81
Connect directly .....................................................................................................................................81
Connect through a router........................................................................................................................83
6. Demonstration ............................................................................................................... 85
Example 1: Measurement a Simple Signal..............................................................................85
Example 2: Gain of a Amplifier in a Metering Circuit..........................................................86
Example 3: Capturing a Single Signal.....................................................................................87
Example 4: Analyze the Details of a Signal.............................................................................88
Example 5: Application of X-Y Function................................................................................90
Example 6: Video Signal Trigger............................................................................................. 91
7. Troubleshooting............................................................................................................. 93
8. Technical Specifications................................................................................................ 94
Trigger....................................................................................................................................................96
General Technical Specifications.............................................................................................98
9. Appendix ........................................................................................................................ 99
Appendix A: Enclosure............................................................................................................. 99
Appendix B: General Care and Cleaning .............................................................................100

User Manual
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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.
Only the qualified technicians can implement the maintenance.
To avoid Fire or Personal Injury:
Connect the probe correctly. The grounding end of the probe corresponds to the
grounding phase. Please don't connect the grounding end to the positive phase.
Use Proper Power Cord. Use only the power cord supplied with the product and
certified to use in your country.
Connect or Disconnect Correctly. When the probe or test lead is connected to a
voltage source, please do not connect and disconnect the probe or test lead at random.
Product Grounded. This instrument is grounded through the power cord grounding
conductor. To avoid electric shock, the grounding conductor must be grounded. The
product must be grounded properly before any connection with its input or output
terminal.
When powered by AC power, it is not allowed to measure AC power source
directly, because the testing ground and power cord ground conductor are
connected together, otherwise, it will cause short circuit.
Check all Terminal Ratings. To avoid fire or shock hazard, check all ratings and
markers of this product. Refer to the user's manual for more information about ratings
before connecting to the instrument.
Do not operate without covers. Do not operate the instrument with covers or panels
removed.
Use Proper Fuse. Use only the specified type and rating fuse for this instrument.
Avoid exposed circuit. Do not touch exposed junctions and components when the
instrument is powered.
Do not operate if in any doubt. If you suspect damage occurs to the instrument, have
it inspected by qualified service personnel before further operations.
Use your Oscilloscope in a well-ventilated area. Make sure the instrument installed
with proper ventilation, refer to the user manual for more details.
Do not operate in wet conditions.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.

User Manual
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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.
Terms on the product. The following terms may appear on this product:
Danger: It indicates an injury or hazard may immediately happen.
Warning: It indicates an injury or hazard may be accessible potentially.
Caution: It indicates a potential damage to the instrument or other property might occur.
Safety Symbols
Symbols on the product. The following symbol may appear on the product:
Hazardous Voltage
Refer to Manual
Protective Earth Terminal
Chassis Ground
Test Ground
To avoid body damage and prevent product and connected equipment damage, carefully
read the following safety information before using the test tool. This product can only be
used in the specified applications.
Warning:
The two channels of the oscilloscope are not electrically isolated. The channels should
adopt a common ground during measuring. To prevent short circuits, the 2 probe
grounds must not be connected to 2 different non-isolated DC levels.

User Manual
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The diagram of the oscilloscope ground wire connection:
Ground Clip
Signal Input
Oscilloscope Electrical OutletProbe
Power Cord
It is not allowed to measureAC power when the oscilloscope is AC powered.
Warning:
To avoid fire or electrical shock, when the oscilloscope input signal
connected is more than 42V peak (30Vrms) or on circuits of more than
4800VA, please take note of below items:
Only use accessory insulated voltage probes and test lead.
Check the accessories such as probe before use and replace it if
there are any damages.
Remove probes, test leads and other accessories immediately after
use.
Remove USB cable which connects oscilloscope and computer.
Do not apply input voltages above the rating of the instrument
because the probe tip voltage will directly transmit to the
oscilloscope. Use with caution when the probe is set as 1:1.
Do not use exposed metal BNC or banana plug connectors.
Do not insert metal objects into connectors.

User Manual
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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 auto-calibration
Introduction to the vertical system
Introduction to the horizontal system
Introduction to the trigger system

User Manual
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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.
Front Panel
The front panel has rotary controls and function buttons. The 5 buttons in the column on
the right side of the display screen or in the row under the display screen are menu
selection buttons, through which, you can set the different options for the current menu.
The other buttons are function buttons, through which, you can enter different function
menus or obtain a specific function application directly.
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Figure 3-1 Front panel
1. Display area
2. Control (button and rotary control) area
3. Probe Compensation: Measurement signal (5V/1kHz) output.
4. EXT Trigger Input
5. Signal Input Channel
6. Copy button: You can save the waveform by just pressing this button in any user
interface.
7. 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.

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8. Power on/off
Backlight of this button:
Red light: The oscilloscope is turned off (connects with AC Power);
Green light: The oscilloscope is turned on (powered by AC Power).
Front Panel Menu Buttons
Select the right menu item
Select the bottom menu item
Remove the left and right menu
Figure 3-2 Menu Buttons
Rear Panel
9 8 7 6
11
1 2
5
3
4
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Figure 3-3 Rear Panel
1. Handle
2. Air vents
3. AC power input jack
4. Fuse
5. Foot stool: Adjust the tilt angle of the oscilloscope.
6. VGA port: To connect the oscilloscope with a monitor or a projector as VGA output
(optional).
7. LAN port: the network port which can be used to connect with PC.

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8. USB Device port: It is used to transfer data when external USB equipment connects to
the oscilloscope regarded as "slave device". For example: to use this port when
connect PC to the oscilloscope by USB.
9. Lock Hole: You can lock the oscilloscope to a fixed location using the security lock
(please buy it yourself) to secure the oscilloscope.
10.AV Port: AV signal output port (optional).
11.Trig Out(P/F) port: Trigger signal output or Pass/Fail output.
Control Area
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7
6
1
2
3
11
10
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Figure 3-4 Control Area Overview
1. Function button area: Total 11 buttons
2. DAQ: Multimeter Recorder.
P/F: Pass/Fail
W.REC: Waveform Record
3. Trigger control area with 2 buttons and 1 rotary control.
The Trigger Level rotary control is to adjust trigger voltage. Other 2 buttons refer to
trigger system setting.
4. Horizontal control area with 1 button and 2 rotary controls.
"HOR" button refer to horizontal system setting menu, "Horizontal Position" rotary
control control trigger position, "Horizontal Scale" control time base.
5. Vertical control area with 3 buttons and 4 rotary controls.
"CH1" and "CH2 " correspond to setting menu in CH1 and CH2, "Math" button refer
to math menu, the math menu consists of six kinds of operations, including CH1-CH2,
CH2-CH1, CH1+CH2, CH1*CH2, CH1/CH2 and FFT. Two "Vertical Position"
rotary control control the vertical position of CH1/CH2, and two "Scale" rotary
control control voltage scale of CH1, CH2.