UNI-T MSO1000HD Series High-Resolution Oscilloscopes

(1) Vertical Control

• 1, 2, 3, 4: Analog channel setting keys, representing CH1, CH2, CH3, and CH4 respectively. Each channel tab is identified by a different color, corresponding to the waveform colors on the screen and the channel input connectors. Press any key to enter the related channel menu (activate or disable the channel).
• Math: Press this key to open the mathematical operation menu for operations like addition, subtraction, multiplication, division, digital filter, and advanced operations.
• Ref: Loads a reference waveform from "Local or USB" for comparison with the measured waveform.
• Digital: Press this key to enter Digital setting for basics, grouping, threshold, bus, and label configuration.
• Scale: Vertical scale rotary knob adjusts the vertical scale in the current channel. Turning clockwise decreases the scale; counterclockwise increases it. The amplitude of the waveform changes accordingly, and the scale value at the bottom of the screen updates in real-time. The vertical scale uses a 1-2-5 step. Pressing this knob allows for coarse and fine tuning of the vertical scale.
• Position: Vertical position rotary knob moves the vertical position of the waveform in the current channel. Pressing this knob resets the channel position to the vertical midpoint.

(2) Horizontal Control

• Menu: Displays the horizontal menu, including 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 adjusts the time base for all channels. During adjustment, the waveform compresses or extends horizontally on the screen, and the horizontal scale value updates in real-time. The time base uses a 1-2-5 step. Pressing this knob allows for coarse and fine tuning of the horizontal scale.
• Position: Horizontal position rotary knob moves the trigger point left or right relative to the screen center. During adjustment, all channel waveforms shift left or right, and the horizontal shift value at the top of the screen updates in real-time. Pressing this knob resets the current position to the horizontal midpoint.

(3) Trigger Control

• Slope: Switches the trigger edge (rising, falling, or any edge). The corresponding edge indicator light illuminates.
• Menu: Enters the trigger menu.
• Source: Switches the trigger source. Panel numbers 1 to 4 correspond to channels CH1 to CH4. The corresponding number's indicator light illuminates when switching the source.
• Position: Trigger level rotary knob. Turning clockwise increases the level; counterclockwise decreases it. The trigger level displayed on the top right changes in real-time. When the trigger mode is Single, pressing this knob sets the trigger level to the signal and quickly turns to 50%. The Ready or Trig'd indicator light in the trigger control area illuminates when the trigger status is READY or TRIGED.

(4) Control Area

• Auto/Normal: Switches the oscilloscope trigger mode between Auto and Normal.
• Run/Stop: Sets the operating mode to Run (green indicator) or Stop (red indicator).
• Force: When the trigger mode is Normal or Single, pressing this key generates a trigger.
• Autoset: Automatically adjusts the vertical scale, time base, and trigger mode based on the input signal to display the optimal waveform.
• Single: Sets the oscilloscope's trigger mode to Single (orange indicator).

(5) Measurement Analysis Area

• Measure: Enters the measurement menu to set the counter, voltmeter, parameter snapshot, measurement statistics, add measurement, clear measurement, and global settings.
• Cursor: Enters the cursor measurement menu to set time, voltage, and screen measurement for each source.
• Analyze: Opens the analysis module menu for functions like voltmeter, counter, power analysis, waveform recording, and pass/fail test.

(6) Multi-function Area

• Multipurpose A: Knob A adjusts values when a numerical menu is selected in a function popup window.
• Multipurpose B: Knob B shifts the selected digit when setting numerical parameters in a text box.

(7) Shortcut key area

• Quick: Quickly saves the screen waveform as a PNG bitmap to a default or custom image path.
• Clear [clear-icon]: Clears all recalled waveforms and parameter measurement statistics from the screen.
• Touch/Lock: Disables the touchscreen (backlight turns on). Pressing again enables the touchscreen (backlight turns off).
• Default: Restores factory settings, resetting all oscilloscope settings to their default values.

(8) Signal Output Area

• Gen: Opens the signal source Gen settings menu.

(9) Home Menu

Press the Home icon [home-icon] in the top right corner to open the Home quick menu. This menu includes options for Voltmeter, FFT, signal source, Math, reference, help, cursor, storage, counter, measurement, regional drawing, display, auxiliary, decoding, search, regional diagram, navigation, waveform recording, power analysis, and pass/fail. Press an option to enter the corresponding function module.

(1) Multipurpose rotary knob

For time and voltage parameters, once a parameter is selected, rotate the Multipurpose rotary knob on the front panel to enter the parameter value.

(2) Touch screen

Once a parameter or text field is selected, double-click to pop up the virtual keyboard to enter the parameter value, label name, or file name.

• Enter character string: When naming a file or folder, use the character keyboard to enter a string.
• Text field: Enter text, numbers, and special characters, with a maximum length of 16 characters.
• Clear key: Deletes all contents in the text field.
• Caps key: Switches between upper and lower case.
• Tab key: Enters 2 spaces at a time.
• Shift key: Switches among number, special character, upper, and lower case.
• Arrow keys (left, right): Moves the cursor left or right to edit content.
• Space key: Enters one space in the text field.
• Backspace key: Deletes a single character.
• Enter key: Confirms the setting and closes the virtual keyboard.

(3) Enter numeric value

When setting or editing a parameter, use the numeric keyboard to enter the numeric value. Click the number or unit to enter. The numeric keypad will automatically close after entering values and selecting units, completing the parameter setting. Alternatively, the user can manually close the numeric keypad by clicking the confirm key, in which case the unit defaults to the preset unit. On the numeric keypad, users can also:

• Delete the entered parameter value.
• Set the parameter to the maximum or minimum value (current state).
• Set the parameter to the default value.
• Clear the parameter input field.
• Move the cursor to modify the parameter value.

Enter binary, hexadecimal system value: During decoding trigger, use the numeric keypad to enter binary or hexadecimal values for data and address settings.

(1) Tap

Use one finger to slightly tap on an icon or a word on the screen. Tap gestures can be used for:

• Tapping the menu display on the screen to set it up.
• Tapping a function icon on the top right corner to open the corresponding function.
• Tapping the pop-up numeric keyboard to set parameters.
• Tapping the virtual keyboard to set label names and file names.
• Tapping a message to pop up a [close-window-icon] button on the top right corner to close the pop-up window.
• Tapping another window displayed on the screen to set it up.
• Tapping a message to reveal a help key [help-icon] in the top right corner, which opens the corresponding function's help menu for detailed guidance.

(2) Pinch

Squeeze two fingers together or separate them to zoom out or zoom in on the waveform. To zoom out, pinch two fingers together and slide them apart; to zoom in, spread two fingers apart and then pinch them together. Pinch gestures can be used for:

• Adjusting the horizontal time base of the waveform by squeezing in the horizontal direction.
• Adjusting the vertical time base of the waveform by squeezing in the vertical direction.

(3) Drag

Use one finger to press and drag the selected item to the desired position. Drag gestures can be used for:

• Dragging the waveform to change its position.
• Dragging the window to change its position.
• Dragging the cursor to change its position.

(4) Rectangle Drawing

Open the HOME menu and click the Rectangle Drawing icon to enable the function. Drag your finger to draw a rectangle on the screen. A menu will appear, allowing selection of Region A, Region B, Intersection, or Non-intersect. Drag your finger from bottom right to the top left on the screen to draw the trigger area.

Note: Click on Rectangle Drawing to switch between rectangle drawing and operating waveform modes. The icon indicates rectangle drawing mode is enabled; the icon indicates operating waveform mode is enabled.

(1) Custom Programming

Perform programming control through SCPI. For detailed descriptions on commands and programming, refer to the MSO1000HD Series High-Resolution Oscilloscopes-Programming Manual.

(2) PC Software Control (Instrument manager)

Use PC software to remotely control the oscilloscope. The instrument manager displays the oscilloscope screen in real-time and allows operation with the mouse. It is recommended to use the PC software provided by UNI-T, downloadable from the UNI-T official website (https://www.uni-trend.com).

Operating steps:

• Setup communication between the instrument and a PC.
• Open the instrument manager software and search for the instrument source.
• Right-click to open the oscilloscope and operate the instrument manager to remotely control it (refer to Instrument Manager-User's Manual for more details). This device supports remote control via USB and LAN interfaces, using the SCPI command set.

(3) Web Control

Once connected to the network, access a web page via the IP address. Log in with username and password to control the device. The Web Control feature displays the instrument's screen interface in real-time and supports web access from PCs, smartphones, and iPads for both internal and external remote control.

(1) Oscilloscope remains on a black screen without display when pressing the power soft key:

• Check power plug connection and power supply normality.
• Check if the power switch is turned on. The power soft key should be green if on. When enabled, it should be blue and emit an active sound. A normal relay rattle should occur when the soft switch key is pressed.
• If the relay sounds, the oscilloscope is booting normally. Press the Default key and then Yes. If the oscilloscope returns to normal, the backlight brightness might be too low.
• Restart the oscilloscope after completing the above steps.
• If the product still does not work properly, contact the UNI-T Service Center for assistance.

(2) Waveform does not appear on the screen after signal acquisition:

• Check if the probe and DUT are connected properly.
• Check if the signal output channel is open.
• Check if the signal connecting line is connected to an analog channel.
• Check if the signal source has DC offset.
• Disconnect the signal to check if the baseline is within the screen range (perform self-calibration if not).
• If the product still does not work properly, contact the UNI-T Service Center for assistance.

(3) Measured voltage amplitude value is 10 times larger or smaller than the actual value:

Check if the channel probe attenuation coefficient settings are consistent with the used probe attenuation rate.

(4) Waveform display is unstable:

• Check if the trigger settings in the trigger menu are consistent with the actual signal input channel.
• Check the trigger type; general signals should use "Edge" trigger for stable display.
• Try changing trigger coupling to HF rejection or LF rejection to filter out high-frequency or low-frequency noise that interferes with the trigger.

(5) No waveform is displayed after pressing the Run/Stop key:

• Check if the trigger mode is set to Normal or Single and verify if the trigger level exceeds the waveform range.
• If the trigger mode is Normal or Single and the trigger level is in the center, set the trigger mode to Auto.
• Press the Autoset key to automatically complete the above settings.

(6) Waveform refresh is very slow:

• Check if the acquisition method is set to Average and if the average times are large.
• Check if the memory depth is maximum.
• Check if the trigger holdoff is large.
• Check if it is normal trigger and the time base is slow.

All the above can lead to slow waveform refresh. It is recommended to restore factory settings, then the waveform can be refreshed normally.