HANTEK HRDO4304D (01) PDF Document

To ensure safe operation of your HANTEK HRDO4304D, please follow these safety precautions:

Only professionally authorized personnel can perform repairs.

Use the right power cable. Use only the power cable approved for the country in which the product is used.

Connect and disconnect correctly. Before connecting a probe to a circuit, connect the probe to the oscilloscope first. Before disconnecting the probe from the oscilloscope, disconnect the probe from the circuit under test first.

Ground the product. To avoid electric shocks, the product is grounded through a grounding conductor of the power cable. The grounding conductor must be connected to the ground before connecting the input or output terminals.

Connect the probe properly. The ground wire of the probe is at the same potential as the ground. Do not connect the ground wire to a high voltage.

View all terminal rating values. To avoid fire or excessive current, check all rating values and signs on the product. Consult the manual for details before connecting.

Do not operate with the cover open. Do not run the product with the cover or panel open.

Avoid circuit exposure. Do not touch exposed connectors and components after the power is switched on.

Do not operate if the product is suspected to be faulty. If you suspect damage, have it checked by qualified maintenance personnel.

Maintain proper ventilation. Ensure at least 10 cm of clearance beside, above, and behind the instrument for adequate ventilation.

Do not operate in a humid environment.

Do not operate in an inflammable or explosive environment.

Please keep the product surface clean and dry.

The HANTEK HRDO4304D series oscilloscope has the following features:

12-bit vertical resolution, up to 10GSa/s sampling rate, maximum 3GHz bandwidth.

Set of 8 independent instruments in one, including: 4-Channel oscilloscope/16-channel logic analyzer/spectrum analyzer/2-Channel arbitrary wave generator/digital voltmeter / frequency meter and accumulator/protocol analyzer/protocol generator.

Built-in dual-channel 200MHz signal source, ±7V voltage output, 1GSa/s sampling rate.

10.1 inch multi-touch capacitive screen, 256 level waveform gray scale and color temperature display.

Rich serial protocol triggering and decoding functions.

Waveform capture rate is higher than 1.1 million waveforms per second.

Up to 51 kinds of waveform parameters are automatically measured.

Multiple data analysis and processing functions: independent search, navigation buttons and event lists, histograms, Bode plots, power analysis, frequency meters.

After receiving your HANTEK HRDO4304D, please perform the following checks:

1. Check the shipping package: Inspect the packaging for any damage caused by transportation. If the cartons or foam pads are seriously damaged, keep them until the entire machine and its accessories pass electrical and mechanical testing.

2. Check the accessories: Verify that all accessories listed in Appendix A are present and undamaged. If anything is missing or damaged, contact your dealer.

3. Check the machine: If you find the instrument is damaged, not working properly, or fails its performance test, contact your dealer.

Follow these steps to prepare your HANTEK HRDO4304D for use:

1. Adjust the Supporting Legs: The machine has a bracket at the bottom. Adjust it to tilt the oscilloscope slightly upwards for better placement stability and easier observation.

2. Connect to AC Power: Use the provided power cord to connect the oscilloscope to a power supply with specifications of 47-440Hz, 90-264VAC / 127-320VDC, 80 Watts MAX. Ensure the instrument is correctly grounded to avoid electric shock.

3. Turn-on Checkout: Press the power button on the lower left of the front panel. During startup, all button lights will illuminate for a few seconds as the oscilloscope performs self-checks. The startup screen will appear upon completion.

Function Inspection:

1. Click [Default Setup] to restore the oscilloscope to factory settings.

2. Connect the probe’s grounding crocodile clamp to the grounding terminal on the front panel.

3. Connect the probe to the channel 1 (CH1) input terminal and the compensation signal output terminal.

4. Set the probe attenuation ratio to X10 and click [Auto Scale].

5. Observe the waveform to ensure a square wave signal is displayed normally. Check other channels (CH2-CH4) similarly.

Probe Compensation:

When connecting a probe to any input channel for the first time, you must match the probe to the channel.

1. Perform the first four steps of the “Function Inspection” above.

2. Compare the displayed waveform to the reference images for “Perfectly compensated,” “Over compensated,” and “Under compensated.”

3. If necessary, use a non-metallic screwdriver to adjust the variable capacitance on the probe until the waveform appears “Perfectly compensated.”

The user interface of the HANTEK HRDO4304D is divided into several key areas:

1. Hantek logo, function navigation: Click this icon to open the function navigation menu.

2. Running status: Displays the current operating status (RUN, STOP, TD, WAIT, AUTO).

3. Horizontal time base: Shows the time per grid division on the horizontal axis.

4. Horizontal displacement: Displays the horizontal position value relative to the trigger.

5. Sampling rate/storage depth: Shows the current sampling rate and memory depth.

6. Trigger position marker: A marker indicating the trigger point on the time axis.

7. Waveform memory: A schematic diagram showing the position of the displayed waveform within the memory.

8. Trigger information: Displays trigger type, level, and mode.

9. Trigger source: Displays the current trigger source channel.

10. Trigger type: Displays the selected trigger type and conditions.

11. Trigger level/threshold level: Displays the voltage level for the trigger.

12. Operation menu: The menu area on the right side of the screen, corresponding to front panel buttons.

13. Notification area: Displays icons for time, sound, USB drive, and LAN connections.

14. Arbitrary wave generator (option): Shows the status of the wave generator if active.

15. Digital channel status area: Displays the current status of the digital channels.

16. Message box: Displays prompt messages.

17-21. Channel status labels (CH1-CH4): Displays the vertical scale (V/div), offset, coupling, and bandwidth limit for each analog channel.

The HANTEK HRDO4304D supports multi-touch and gesture operations with high sensitivity. The functions include:

1. Tap: Tap a menu, icon, or on-screen button with one finger to operate it. This can be used to operate menus, use the pop-up numeric or virtual keyboard, and close pop-up windows.

2. Drag: After holding down on a target (like a waveform or window), drag it to the desired position. This is used to change a waveform’s vertical offset or move a window.

3. Pinch & Stretch: Bring two fingers together (pinch) or move them apart (stretch) on the screen. This gesture can amplify or reduce the waveform. Vertical pinching/stretching adjusts the vertical scale (V/div), and horizontal pinching/stretching adjusts the horizontal time base.

4. Rectangle Drawing: In AreaSel mode, drag your finger on the screen to draw a rectangle. This can be used to select functions like “Histogram,” “Enlarge Level” (horizontal zoom), “Enlarge Vertical” (vertical zoom), or “Enlarge Waveform” (zoom in both directions).

The help system provides instructions for the various function buttons on the front panel and their corresponding menu keys. To use it:

1. Click the [Help] button in the function menu area to enter the help module.

2. Press any other key (e.g., [QuickAction]) to obtain help information for that specific function. An explanation menu for that key will pop up on the screen.

3. Press the [Help] button again to exit the help module.

To Adjust the Vertical Scale (V/div):

Rotate the vertical gear knob for the corresponding channel (e.g., CH1) to adjust the vertical scale. Rotate clockwise to decrease the V/div value (zoom in) and counterclockwise to increase it (zoom out). You can also tap the channel menu at the bottom of the screen and set the scale in the pop-up menu.

To Adjust the Vertical Offset:

Rotate the vertical offset knob for the channel to move the waveform up or down. You can also adjust the offset by dragging the waveform vertically with the touch screen. Pressing the offset knob resets the offset to zero.

To Set Channel Coupling:

Open the vertical menu for the channel and click on the “Coupling” menu. You can select from:

DC: Allows both DC and AC components of the signal to pass through.

AC: Blocks the DC component of the signal, showing only the AC component.

GND: Disconnects the input signal and grounds the channel input, displaying a zero-volt reference line.

To Adjust the Horizontal Time Base (s/div):

Rotate the horizontal time base knob (marked with a wave symbol) to modify the time per division. Turn it clockwise to decrease the time base (zoom in) and counterclockwise to increase it (zoom out). You can also tap the time base label at the top of the screen to enter a value directly.

To Adjust the Horizontal Position:

Rotate the horizontal position knob to move the waveform left or right relative to the screen’s center. This adjusts the position of the trigger point. Pressing the knob quickly resets the horizontal position to zero.

Delayed Sweep (Zoom):

Press the [Zoom] button in the horizontal control area to enable delayed sweep. This splits the screen into two areas: the top shows the main time base, and the bottom shows a zoomed-in portion of the waveform with a faster (delayed) time base for detailed viewing.

You can select the acquisition mode by pressing the [Acquire] button. The available modes are:

Normal: The oscilloscope samples the signal at equal time intervals to reconstruct the waveform. This mode provides the best display for most waveforms.

Average: The oscilloscope averages multiple sampled waveforms to reduce random noise and improve vertical resolution. You can set the number of averages (2, 4, 8… up to 1024).

Peak: The oscilloscope captures the maximum and minimum values of the signal within each sampling interval. This is useful for capturing narrow pulses or glitches and avoiding aliasing.

High Resolution: This mode uses a supersampling technique to average adjacent points of a single sampled waveform, reducing random noise and producing a smoother display.

The trigger determines when the oscilloscope starts acquiring data. You can access the trigger menu by pressing the [Trig Menu] button or tapping the trigger tab at the top of the screen.

1. Trigger Type: In the trigger menu, select “Type” to choose from various trigger types like Edge, Pulse, Video, Slope, Runt, etc., based on the signal characteristic you want to trigger on.

2. Trigger Source: Select “Source” to choose which channel (CH1-CH4, EXT, or Digital channels) will be used as the trigger signal.

3. Trigger LEVEL: Rotate the “Trigger” knob to adjust the voltage level that the trigger source signal must cross to initiate a trigger. Pressing the knob sets the level to 50% of the waveform peak.

4. Trigger Mode: Press the [Mode] button to switch between modes:

Auto: The oscilloscope triggers when the trigger condition is met, but will also sweep automatically if no trigger occurs, allowing you to see a signal even if it’s not triggering stably.

Normal: The oscilloscope only updates the waveform when a valid trigger event occurs. If there is no trigger, the display remains unchanged.

Single: The oscilloscope waits for a single trigger event, captures one waveform, and then stops acquiring.

5. Trigger Holdoff: Set a holdoff time to prevent the oscilloscope from re-triggering for a specified period after a trigger event. This is useful for stabilizing complex waveforms like pulse trains.

The HANTEK HRDO4304D can perform a wide range of automatic measurements, which are categorized as follows:

Time Parameters:

Period, Frequency, Rise Time, Fall Time, Positive Pulse Width (+Width), Negative Pulse Width (-Width), Positive Duty Cycle (+Duty), Negative Duty Cycle (-Duty), Bandwidth, MaxTime, MinTime.

Count Value Parameters:

Positive Pulse Count, Negative Pulse Count, Rise Pulse Count, Fall Pulse Count, Trigger Count.

Delay and Phase:

Various delay measurements between two sources (e.g., FRR [First Delay Rise Rise]), Positive phase difference, Negative phase difference.

Voltage Parameters:

Vmax, Vmin, Pk Pk (Peak-to-Peak), Vtop, Vbase, Vamp (Amplitude), Vmid, Average, Cycle Average, Vrms, Per Vrms, Fall Pre shot, Fall Overshoot.

Other Parameters:

Positive/Negative slope, various DC and AC area measurements.

You can add these measurements by pressing the [Meas] button, selecting “Add,” and choosing the desired parameters from the Horizontal, Vertical, and Other categories.

The cursor function allows for manual measurement of time (X-axis) and voltage (Y-axis) values on the waveform. Press the [Cursors] button to enter the cursor setting menu.

1. Mode: Select the cursor mode. The primary mode is “Manual.”

2. Select Type: Choose between “X” cursors (vertical lines for time/frequency) or “Y” cursors (horizontal lines for voltage).

3. Source: Select the channel (CH1-CH4, Math, etc.) you want to measure.

4. Adjust Cursors:

Use the menu options (AX, BX for X-cursors; AY, BY for Y-cursors) to select a cursor.

Rotate the multifunction knob (V0) to move the selected cursor to the desired point on the waveform.

The cursor measurement window will appear on the screen, displaying the absolute position of each cursor (AX, BX, AY, BY) and the difference between them (BX-AX for time, BY-AY for voltage).

Track Mode: In this mode, the cursors automatically “stick” to the waveform of the selected source as you move them, making it easier to measure specific points on the signal.

Press the [Save/Recall] button to open the save/recall menu. You can save to internal memory or an external USB drive.

To Save Files:

1. Select a storage type: “Save Image,” “Save Wave,” or “Save Setup.”

2. Configure the settings for that type. For example, for “Save Image,” you can set the format (*.png, *.bmp, etc.), file name, and color options.

3. Click “Save” to store the file in the selected location (internal or external memory).

To Load Files:

1. Select “Load Wave” or “Load Setup.”

2. A file browser will appear. Navigate to the desired file on the internal or external storage.

3. Select the file and click “Load” to recall the waveform or settings.

Disk Management:

In the save/recall menu, select “Disk” to open the disk management interface. Here, you can perform file operations like copying, pasting, renaming, deleting files, and creating new folders on both internal and external storage.

The Pass/Fail test function monitors a signal and compares it against a defined mask. To access it, go to [Utility] -> Pass/Fail.

1. Enable: Click the “Enable” menu tab to turn the function on.

2. Source: Select the source channel (CH1-CH4) to test.

3. Mask: Click the “Mask” menu tab to define the test rules.

Select “Create Rule” to build a new mask.

Set the horizontal (X Mask) and vertical (Y Mask) tolerance range around the source waveform. This creates the boundary for the test.

Click “Create Rule” again to apply the mask.

4. Operation: Click the “Operate” menu tab to start or stop the test. The oscilloscope will now check if the input waveform violates the mask boundaries.

5. Options: In the “Option” menu, you can configure actions for a failure, such as stopping the test, sounding a beeper, or outputting a pulse on the Aux Output terminal.

6. Information: The “Information” tab displays a running count of total tests, passes, and fails.

The HANTEK HRDO4304D can be remotely controlled via USB, LAN, or RS232.

Remote Control via USB:

1. Connect the device: Use a USB data cable to connect the oscilloscope’s USB DEVICE port to a USB HOST port on your PC.

2. Install USB driver: The PC should automatically install the necessary driver when the oscilloscope is connected and powered on for the first time.

3. Use IO software: Open an IO control software (like Keysight IO) on your PC. The software will search for and find the connected oscilloscope.

4. Control the instrument: Use the software’s interactive panel to send SCPI commands and read data from the oscilloscope.

Remote Control via LAN:

1. Connect the device: Connect the oscilloscope to your local area network using a network cable.

2. Configure network parameters: On the oscilloscope, go to [Utility] -> I/O -> LAN and configure the IP settings (e.g., DHCP or Static IP) to match your network.

3. Search and control: Use IO software on a PC on the same network to search for the device by its IP address and then control it remotely.

Remote Control via RS232:

1. Connect the device: Connect the oscilloscope to your PC using an RS232 cross serial cable.

2. Configure parameters: On the oscilloscope, go to [Utility] -> I/O -> RS232 and set the Baud Rate.

3. Search and control: Use IO software to connect to the corresponding COM port and control the instrument remotely.

If you see a ladder-like waveform display, try the following:

1. The horizontal time base might be too slow for the signal, resulting in too few sample points being displayed. Try increasing the horizontal time base (i.e., decreasing the s/div value) to improve the display resolution.

2. If the display type is set to “Vector,” the lines drawn between sample points may cause this effect. This is a normal representation with few sample points per waveform feature.

1. Check if the power switch of the oscilloscope is turned on.

2. Check if the fuse is intact. If a fuse needs to be replaced, please use a fuse that meets the product’s specifications.

3. If the button board still does not light up, please contact Hantek technical support.

1. Check if the probe is correctly connected to the BNC connector of the signal input channel.

2. Check if the channel you are using (CH1-CH4) is enabled. Press the corresponding channel menu button to turn it on.

3. Detect whether the signal source itself is outputting a signal.

4. If it is a DC signal and the amplitude is relatively large, you may be off-screen. Try increasing the vertical scale (V/div).

5. Press the [Auto Scale] button to let the oscilloscope automatically detect the signal and adjust the settings.

1. Check if the touch screen function has been disabled. If so, click the [Touch Lock] button on the front panel to turn the touch function back on.

2. Check if there is any dirt or debris on the screen or your fingers. If there is, please clean it first.

3. Check if the oscilloscope is close to a strong magnetic field, which can interfere with the touch screen. If it is, please move it away.

1. Check if the USB drive itself is functioning properly by testing it in another device.

2. Confirm the capacity of the USB flash drive. It is recommended to use a USB flash drive that does not exceed 16GB.

3. Confirm that the format of the USB drive is FAT32.

4. Restart the oscilloscope and reinsert the USB drive to see if it is recognized.