UNI T MSO3000HD Series High Definition Oscilloscopes User Guide

Connecting to the Power Supply:
- Frequency: 50 Hz/60 Hz or 400 Hz
Boot Check:
- Press the power soft switch key and ensure the indicator
  changes from red to green.
- The oscilloscope will display a boot animation and then enter
  the normal interface.

Connecting Probe:
- This oscilloscope provides 2 pieces of compensating signal
  probe.
- Connect the BNC of the probe to the BNC of oscilloscope’s
  CH1.
- Connect the probe to the probe compensating signal connection
  clip.
- Connect the ground alligator clip of the probe with the ground
  terminal of compensating signal connection clip.
- The output of compensating signal connection clip: amplitude is
  approximately 3 Vpp, with a default frequency of 1 kHz.

Function Check:
- Press the AUTO key, a square wave (amplitude 3 Vpp, frequency 1
  kHz) should appear on the screen.
- Repeat the step to check all channels.
- If the displayed waveform does not match the expected square
  waveform, perform the ‘Probe Compensation’ procedure.

FAQ

Q: What should I do if the displayed waveform does not match
the expected square waveform during function check?

A: If the displayed waveform is incorrect, perform the ‘Probe
Compensation’ procedure described in the user manual. Adjust the
probe’s variable capacitance until the display matches the correct
compensation waveform.

“`

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MSO3000HD Series High-Definition Oscilloscopes
Quick Start Guide
This manual applies to model: MSO3000HD Series
V1.2 May, 2025
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Quick Start Guide

MSO3000HD Series

Limited Warranty and Liability

UNI-T guarantees that the Instrument product is free from any defect in material and workmanship within three years from the purchase date. This warranty does not apply to damages caused by accident, negligence, misuse, modification, contamination, or improper handling. If you need a warranty service within the warranty period, please contact your seller directly. UNI-T will not be responsible for any special, indirect, incidental, or subsequent damage or loss caused by using this device. For the probes and accessories, the warranty period is one year. Visit instrument.uni-trend.com for full warranty information.

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Quick Start Guide
2. MSO3000HD Series Oscilloscopes

MSO3000HD Series

MSO3000HD series high-definition oscilloscopes includes three models.

Model MSO3054HD

Analog channel number 4

Analog bandwidth 500 MHz

Digital

MSO3034HD

350 MHz

MSO3024HD

200 MHz

Standard Option ×Not support

Gen

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Quick Start Guide
3. Getting Started Guide

MSO3000HD Series

This chapter is to introduce on using the MSO3000HD series oscilloscope for the first time, the front and rear panels, the user interface, as well as touch screen function.

3.1. General Inspection
It is recommended to inspect the instrument follow the steps below before using the MSO3000HD series oscilloscopes for the first time. (1) Check for Damages caused by Transport
If the packaging carton or the foam plastic cushions are severely damaged, please contact the UNI-T distributor of this product immediately. (2) Check Accessories Please check appendix for the list of accessories. If any of the accessories are missing or damaged, please contact UNI-T or local distributors of this product. (3) Machine Inspection If the instrument appears to be damaged, not working properly, or has failed the functionality test, please contact UNI-T or local distributors of this product. If the equipment is damaged due to shipping, please keep the packaging and notify both the transportation department and UNI-T distributors, UNI-T will arrange maintenance or replacement.

3.2.Before Use
To perform a quick verification of the instrument’s normal operations, please follow the steps below. (1) Connecting to the Power Supply
Refer to Connecting Power Supply, use the assembled power line or other power line that meets the local country standards to connect the oscilloscope. When the power switch on the rear panel is not opened, the power soft indicator in the left bottom on the rear panel is extinguished, which indicates this soft switch key is no-effect. When the power switch on the rear panel is opened, the power soft indicator in the left bottom on the rear panel is illuminated with red, and then press the soft switch key to enable the oscilloscope.

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Quick Start Guide

Voltage Range 100 V-240 VAC (fluctuant±10%) 100 V-120 VAC (fluctuant±10%)

Frequency 50 Hz/60 Hz
400 Hz

MSO3000HD Series

(2) Boot Check Press the power soft switch key and the indicator should change from red to green. The oscilloscope will show a boot animation, and then enter the normal interface.
(3) Connecting Probe This oscilloscope provides 2 pieces of compensating signal probe. Connect the BNC of the probe to the BNC of oscilloscope’s CH1 and connect the probe to the “probe compensating signal connection clip”, and then connect the ground alligator clip of the probe with the ground terminal of compensating signal connection clip. The output of compensating signal connection clip: amplitude is approximately 3 Vpp, with a default frequency of 1 kHz.
Probe compensating signal connection clip 1, 2

Ground terminal Probe Compensating Signal Connection Clip and Ground Terminal

(4) Function Check Press the AUTO key, a square wave (amplitude 3 Vpp, frequency 1 kHz) should appear on the screen. Repeat the step 3 to check all channels. If the displayed square waveform does not match the one shown above, please perform the ‘Probe Compensation’ procedure described in the next section.
(5) Probe Compensation When the probe is connected to any input channel for the first time, this step might be adjusted to match the probe and the input channel. Probes that are not compensated may lead to measurement errors or mistake. Please follow the following steps to adjust the probe compensation. Set the attenuation coefficient in the probe menu to 10x and set the probe switch to 10x. Connect the oscilloscope probe to CH1. If using the probe’s hook tip, ensure it makes stable contact. Connecting the probe to the “probe compensation signal connection clip” of the oscilloscope and connect the ground alligator clip to the ground terminal of probe compensating signal connection clip. Open CH1 and press the AUTO key.

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Quick Start Guide
View the displayed waveform, as shown in the following figure 2.

MSO3000HD Series

Excessive Compensation Correct Compensation Insufficient Compensation Probe Compensation Calibration
If the displayed waveform resembles the above “Insufficient Compensation” or “Excessive Compensation”, use a non-metallic screwdriver to adjust the probe’s variable capacitance until the display matches the “Correct compensation” waveform.
WarningTo avoid electric shock when using the probe to measure high voltage, please ensure that the probe insulation is in good condition and avoid physical contact with any metallic part of the probe.

3.3.Front Panel
1

5 6 7

Front Panel

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Table 1 Front Panel Description

No.

Description

No.

Description

Probe compensating signal connection

Display area

clip and ground terminal

Measurement analysis area

Vertical control area

Multi-function area

Analog channel input terminal

Control area

Digital channel input terminal

Horizontal control area

Gen output port

Trigger control area

USB HOST port

Signal output area

Power soft switch key

Probe compensation signal connection terminal and ground terminalConnect the BNC end of

the probe to the BNC connector on Channel 1 of the oscilloscope. Attach the probe tip to the

“Probe Compensation Signal Terminal,” and connect the probe’s ground alligator clip to the

“Ground Terminal” beneath the probe compensation signal terminal. This setup will output the

oscilloscope’s internal signal. Please refer to the ” Before Use – Connecting the Probe” section.

Analog channel input terminal: Connect the oscilloscope probe or BNC cable to these BNC

connectors to input a signal into the oscilloscope.

Digital channel input port: Use the UT-M15 logic probe, provided as an accessory, to connect

the oscilloscope to the device under test for digital channel usage. Please refer to the “Digital

Channel” section.

Signal Source Output Interface G1, G2: These BNC connections can output signals such as

continuous wave, amplitude modulation, frequency modulation, amplitude-shift keying,

frequency-shift keying, and sweep signals. Please refer to the “Function/Arbitrary Waveform

Generator (Gen)” section.

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Quick Start Guide
3.4. Rear Panel

MSO3000HD Series

Table 2 Rear Panel Description

No.

Description

EXT Trig

AUX Out

10MHz REF

USB HOST port

HDMI port

Rear Panel
No. 6 7 8 9 10

Description USB Device
LAN port Power switch AC power input socket
Safety lock

3.5.Operation Panel

(1) Vertical Control

1 , 2 , 3 , 4 Analog channel setting key respectively represents CH1, CH2, CH3, and CH4. Four channel’s tab are identified by different colors and it also corresponding to the colors of waveforms on the screen and the channel input connectors. Press any keys to enter the related channel menu (activate or disable the channel).

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Math Press this key to open the mathematical operation menu to perform math operation (add, subtract, multiply, divide), digital filter and advanced operation.
Ref Loading the reference waveform from `local or USB”, so the measured waveform can compare with the reference waveform.
BusPress this key to enter protocol decoding setting, to set the decoding of RS232, I2C, SPI, CAN, CAN-FD, LIN, FlexRay, Audio, 1553B, Manchester, SENT, and ARINC429.
DigitalPress this key to enter Digital setting, to set basics, grouping, threshold, bus and label.
Scale Vertical scale rotary knob is used to adjust the vertical scale in the current channel. Turn clockwise to decrease the scale, turn counterclockwise to increase the scale. The amplitude of waveform will increase or decrease with the adjustment and the scale at the

bottom of screen

will change in real-time. The vertical scale is step with1-2-5,

press this rotary knob to adjust the vertical scale between coarse tuning and fine tuning.

PositionVertical position rotary knob is used to move the vertical position of the waveform

in the current channel. Press this rotary knob to move the channel position back to the

vertical midpoint.

(2) Horizontal Control Menu Horizontal menu key is used to display the horizontal scale, time base mode (XY/YT), horizontal, auto roll, quick roll time base, horizontal position, time base extension and time base selection.
Scale Horizontal scale rotary knob is used to adjust all channel time base. During the adjustment, the waveform is compressed or extended in horizontal show on the screen and

the horizontal scale value

will change in real-time. The time base is

step with 1-2-5, press this rotary knob to adjust the horizontal scale between coarse tuning

and fine tuning. PositionHorizontal position rotary knob is used to move the trigger point to left or right

side that relative to the center of the screen. During the adjustment, all channel waveforms

move to left or right side and the horizontal shift value on the top of the screen

will change in real-time. Press this rotary knob to move the current

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Quick Start Guide

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position back to the horizontal midpoint. (3) Trigger Control
SlopePress the Slope key to switch the trigger edge: rising edge, falling edge, or any edge, The corresponding edge’s indicator light will illuminate when switching the edge.
Menu Press the Menu key to enter the trigger menu. SourcePress the Source key to switch the trigger source. The panel numbers 1 to 4 correspond to channels C1 to C4. When switching the source, the corresponding number’s indicator light will illuminate. Position Trigger level rotary knob, turn clockwise to increase the level, turn counterclockwise to decrease the level. During the adjustment, the trigger level

on the top right will change in real-time. When the trigger is single level, press this rotary knob to turn the trigger level to the trigger signal and quickly turn to 50%. When the trigger status is READY or TRIGED, the corresponding Ready or Trig’d indicator light in the trigger control area will illuminate. (4) Control Area
Auto/NormalPress the Auto/Normal key to switch the oscilloscope trigger mode between Auto and Normal.
Run/StopThis key is used to set the operating mode of the oscilloscope to “Run” or “Stop”. In the “RUN” state, the key is illuminated in green. In the “STOP” state, the key is illuminated in red.
ForceWhen the trigger mode is Normal or Single, press the force trigger key to generate a trigger.
AutosetAfter pressing the Autoset key, the oscilloscope automatically adjusts the vertical scale, time base, and trigger mode based on the input signal to display the optimal waveform.
SinglePress the Single key to set the oscilloscope’s trigger mode to “Single”; the key will illuminate in orange.
(5) Measurement Analysis Area MeasurePress the Measure key to enter the measurement menu, to set the counter, voltmeter,

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parameter snapshot, measurement statistics, add measurement, clear measurement,

and global settings. CursorPress the Cursor key to enter the cursor measurement menu, to set time, voltage,

and screen measurement for each source. AnalyzePress the Analyze to open the analysis module menu, where the user can access

functions such as the voltmeter, counter, power analysis, waveform recording, and pass/fail

test.

(6) Multi-function Area

QuickPress the Quick key to quickly save the screen

waveform as a PNG bitmap to the default or a custom image

path.

Press the Clear key to clear all recalled waveforms and

parameter measurement statistics from the screen. Touch/Lock Press the Touch/Lock key to disable the touchscreen function; the

background light will illuminate. To enable the touchscreen again, press this key once more,

and the background light will turn off. DefaultRestore factory settings. Press the Default key to reset all oscilloscope settings to

their default values. Multipurpose AMulti-function knob A. When a numerical menu is selected in the function

popup window, the LED on the multi-function knob will light up, allowing the user to adjust

values using the knob. Multipurpose BMulti-function knob B. When setting numerical parameters in a text box,

the user can rotate this knob to shift the selected digit.

(7) Signal Output Area

G1Press the G1 key to open the signal source Gen

settings menu and select G1. G2Press the G2 key to open the signal source Gen

settings menu and select G2.

(8) Home Menu

Press the Home icon on the top right corner to pop up “Home” quick menu, including the quick

menuvoltmeter, FFT, signal source, Math, reference, help, cursor, Bode diagram, storage,

counter, measurement, regional drawing, display, auxiliary, decoding, search, regional diagram,

navigation, waveform recording, power analysis, and Pass/Fail. Press the quick menu to enter

the corresponding function module.

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Quick Start Guide

MSO3000HD Series
Home Menu

3.6. User Interface

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Table 3 User Interface Description

No.

Description

No.

Description

Waveform display window

Multi-window display area

Trigger state icon

Digital channel label

Horizontal base label

Ref label

Sampling rate and storage depth

label

FFT label

Trigger info label

Math label

Function toolbar

15 Measured result display window

Home menu

Channel label

Notification

Analog channel label

Volts/div signal bar

3.7.Help System
The help system provides information about the function keys (including menu keys) on the front panel. The user can access the help system by following these steps. In Home menu, click on the help icon ” ” to open the help menu. In each function menu popup, click on the help icon ” ” on the top right to open the relevant
help menu. The help screen is divided into two parts, the left side is “Help Options”, and the right side is “Help Display Area”. By selecting a help option, the user can view all related help content on the right.

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Quick Start Guide
4. Parameter Setting

MSO3000HD Series

MSO3000HD series supports use the Multipurpose A (Multipurpose rotary knob) and touch screen to set the parameter. The setting steps as follows. (1) Multipurpose rotary knob
For the parameter of time and voltage, once the parameter is selected, rotating the Multipurpose rotary knob on the front panel to enter the parameter value. (2) Touch screen Once the parameter or text field has been selected, double-click to pop up the virtual keyboard to enter the parameter value, label name, or file name. a. Enter character string
When naming a file or folder, use the character keyboard to enter a string. b. Text field
Enter text: input letters, numbers, and special characters, with a maximum length of 16 characters. c. Clear key Press the “Clear” key to delete all contents in the text field. d. Caps key Press the “Caps” key to switch between upper and lower case. e. Tab key Press the “Tab” key to enter 2 spaces at a time. f. Shift key Press the “Shift” key to switch among number, special character, upper and lower case. g. Arrow keys (left, right) If part of the content needs to be changed, press the “, ” key to move the cursor to left or right and then to edit the content. h. Space key Press the “Space” key to enter one space in the text field. i. Backspace key Press the “Backspace” key to delete a single character. This key is used to delete a character when the text field contains a large amount of content. j. Enter key Once the content has been entered, press the “Enter” key to confirm the setting and close the virtual keyboard.

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Quick Start Guide
Keyboard

Input area

MSO3000HD Series

Tab Caps key
Shift

Clear key Backsap ce key Enter

(3) Enter numeric value

Virtual

Space Key

Arrow keys: left, right

When setting or editing a parameter, use the numeric keyboard to enter the numeric value.

1. Click the number or unit to enter

Arrow keys: left, right

Input area

Backspace key

Clear Maximum key Default key Minimum key Enter key

Numeric

Unit

After entering all the values and selecting the desired units, the numeric keypad will automatically close, completing the parameter setting. Additionally, the user can manually close the numeric keypad by clicking the confirm key, in which case the unit will default to the preset unit. On the numeric keypad, the user can also perform the following operations:

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Quick Start Guide

MSO3000HD Series

a. Delete the entered parameter value. b. Set the parameter to the maximum or minimum value (sometimes specifically the
maximum or minimum value for the current state). c. Set the parameter to the default value. d. Clear the parameter input field. e. Move the cursor to modify the parameter value. 2. Enter binary, hexadecimal system value During the decoding trigger, use the numeric keypad to enter binary or hexadecimal values for data and address settings. Enter Method: Tap to select the number or text field to be edited, and then use the numeric keypad to enter the desired numeric or letter values.

Binary input

Hexadecimal input

Numeric keyboard

Arrow keys

Default key Maximum Minimum key Ok key

(4) After entering all the values and pressing the “Ok” button, the numeric keypad will automatically close, completing the parameter setting. Additionally, on the numeric keypad, you can perform the following operations: a. Move the cursor to modify the parameter value. b. Set the parameter to the maximum or minimum value (sometimes specifically for the current state). c. Set the parameter to the default value. d. Clear the parameter input field. e. Delete the entered parameter value.

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Quick Start Guide
5. Touch Screen

MSO3000HD Series

MSO3000HD series provides 10.1-inch super capacitive touch screen, multiple point touch control and gesture control. MSO3000HD has easily operating system with flexible and high-sensitive touch screen features for great waveform display and excellent user experience. Touch control function includes tap, squeeze, drag, and rectangle drawing. NoteThe menu displayed on the screen of the oscilloscope can all use the touch control function. (1) Tap
Use one finger to slightly tap on an icon or a word on the screen as shown in the following figure. Tap gesture can use for: Tap the menu display on the screen and then to setup Tap the function icon on the top right corner to open the corresponding function Tap the pop-up numeric keyboard to set the parameter Tap the virtual keyboard to set the label name and file name
Tap a message to pop up a × button on the top right corner to close the pop-up window.
Tap other window displayed on the screen and then to setup Tap a message to reveal a help key in the top right corner. Clicking this key will open the
corresponding function’s help menu, providing detailed guidance on the selected feature

Tap Gesture
(2) Pinch Squeeze two fingers together or separate. Pinch gesture can zoom out or zoom in the waveform. To zoom out the waveform, pinch two fingers together and then slide them apart; to zoom in, spread two fingers apart and then pinch them together, as shown in the following figure. Adjust the horizontal time base of waveform by squeezing on the horizontal direction. Adjust the vertical time base of waveform by squeezing on the vertical direction.

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MSO3000HD Series

(3) Drag Use one finger to press and drag the selected item to the aimed position as shown in the following figure. Drag gesture can use for: Drag the waveform to change the waveform position. Drag the window to change the window position. Drag the cursor to change the cursor position.

Drag Gesture
(4) Rectangle Drawing Open the HOME menu and click the icon “Rectangle Drawing” to enable the function, drag your finger to draw a rectangle on the screen as shown in Figure (a), (b), move the finger, a menu will appear on the screen, at this point, “Region A”, “Region B”, “Intersection”, “Non-intersect” can be selected. Drag your finger from bottom right to the top left on the screen to draw the trigger area.

(a)

(b)

Rectangle Drawing Gesture

Select “Zone A”

Draw the trigger zone A

Open the trigger zone A

Open “Zone Trigger” menu

Select “Zone B” Draw the trigger zone B Open the trigger zone B Open “Zone Trigger” menu

Note: Click on “rectangle drawing” to step through rectangle drawing and operating waveform

mode. Click on “rectangle drawing”, if the icon shows , it indicates that “rectangle drawing”

mode is enabled; if the icon shows , it indicates that “operating waveform” mode is enabled.

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Quick Start Guide
6. Remote Control

MSO3000HD Series

MSO3000HD series high-definition oscilloscopes can communicate with a PC via USB and LAN port for remote control. Remote control is implemented using SCPI (Standard Commands for Programmable Instruments). MSO3000HD series has three methods for remote control. (1) Custom Programming
The user can perform the programming control on the oscilloscope through SCPI (Standard Commands for Programmable Instruments). For detailed descriptions on command and programming, please refer to MSO3000HD Series High-Definition Oscilloscopes-Programming Manual. (2) PC Software Control (Instrument manager) The user can use a PC software to remotely control the oscilloscope. The instrument manager can display the oscilloscope screen in real time and control the operation with the mouse. It is recommended to use the PC software provided by UNI-T. It can be downloaded from UNI-T official website (https://www.uni-trend.com). Operating steps: Setup the communication between the instrument and a PC Open the instrument manager software and search the instrument source Right-click to open the oscilloscope, operate the instrument manager to remotely control
the oscilloscope (refer to Instrument Manager-User’s Manual for more details) .This device supports remote control through communication with a computer via USB, LAN, and WiFi interfaces. Remote control is implemented using the SCPI command set, allowing users to operate and configure the device remotely. (3) Web Control Once the network is connected, users can access a web page via the IP address. After logging in with the username and password, they can control the device. The Web Control feature displays the instrument’s screen interface in real-time. It supports web access from PCs, smartphones, and iPads, and allows for both internal and external remote control of the device.

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Quick Start Guide
7. Troubleshooting

MSO3000HD Series

(1) If the oscilloscope remains black screen without any display when press the power soft key. a. Check if the power plug is properly connected and the power supply is normal. b. Check if the power switch is turned on. If the power switch is turned on, the power soft key on the front panel should be green. When the power soft key is enabled, the power soft key should be blue, and the oscilloscope will make active sound. There should be a normal relay rattle when the soft switch key is pressed. c. If the relay has sound, it indicates that the oscilloscope is normal boot-up. Press the Default key and press the “Yes” key, if the oscilloscope returns to normal, indicating that the backlight brightness is set too low. d. Restart the oscilloscope after completing the above steps. e. If the product still does not work properly, contact the UNI-T Service Center for assistance.
(2) After signal acquisition, the waveform of the signal does not appear on the screen. a. Check whether probe and DUT are connected properly. b. Check whether the signal output channel is open. c. Check whether the signal connecting line is connect to analog channel. d. Check whether the signal source has DC offset. e. Plug out the connected signal, to check whether the base line is within the screen range (If not, please perform self-calibration). f. If the product still does not work properly, contact the UNI-T Service Center for assistance.
(3) The measured voltage amplitude value is 10 times larger or 10 times smaller than the actual value. Check whether the channel probe attenuation coefficient settings are consistent with the used probe attenuation rate.
(4) There is a waveform display but not stable. a. Check the trigger settings in trigger menu whether is consistent with the actual signal input channel. b. Check the trigger type: the general signals should use “Edge” trigger. The waveform can only be displayed stably if the trigger mode is set correctly. c. Try to change trigger coupling to HF rejection or LF rejection, to filter out the high-frequency or low-frequency noise that interfere the trigger.
(5) No waveform is displayed after pressing the Run/Stop key. a. Check whether the trigger mode is set to “Normal” or “Single” and verify if the trigger level

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Quick Start Guide

MSO3000HD Series

exceeds the waveform range. b. If the trigger mode is in normal or single and the trigger level is in the center, set the trigger
mode to Auto. c. Press the Autoset key to automatically complete the above settings. (6) Waveform refresh is very slow. a. Check whether the acquisition method is set to “Average” and if the average times are
large. b. Check whether the storage depth is maximum c. Check whether the trigger holdoff is large. d. Check whether it is normal trigger and is slow time base. e. All the above will lead to slow waveform refresh, it is recommended to restore the factory
settings, then the waveform can be refreshed normally.

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110401112667X

DWH

CHK APPRO

:148×210±1mm. 128G 60g ,…

REV.0
MODEL : MSO3000HD

art NO. 110401112667X

()
UNI-TREND TECHNOLOGY (CHINA) CO.,LTD

Documents / Resources

UNI T MSO3000HD Series High Definition Oscilloscopes [pdf] User Guide
MSO3000HD Series, MSO3000HD Series High Definition Oscilloscopes, MSO3000HD Series, High Definition Oscilloscopes, Definition Oscilloscopes, Oscilloscopes

References

User Manual

UNI T MSO3000HD Series High Definition Oscilloscopes User Guide

MSO3000HD Series High Definition Oscilloscopes

Specifications

Product Usage Instructions

1. General Inspection

2. Before Use

FAQ

Q: What should I do if the displayed waveform does not match
the expected square waveform during function check?

Documents / Resources

References

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