HANTEK HRDO4084C (01) PDF Document

To ensure safety and prevent damage, please adhere to the following precautions:

• Only professionally authorized personnel can perform repairs.

• Use the right power cable approved for the country of use.

• Connect the probe to the oscilloscope first before connecting to the circuit. When disconnecting, disconnect the probe from the circuit under test first.

• The product must be properly grounded through the grounding conductor of the power cable before connecting any input or output terminals.

• The ground wire of the probe is at ground potential. Do not connect it to high voltage.

• Check all rating values and signs on the product to avoid fire or excessive current.

• Do not operate the product with its cover or panel open.

• Avoid touching exposed connectors and components when the power is on.

• If you suspect the product is damaged, have it checked by qualified maintenance personnel.

• Maintain proper ventilation and ensure at least 10 cm of clearance around the instrument.

• Do not operate in a humid, inflammable, or explosive environment.

• Keep the product surface clean and dry.

Care:

Do not expose the LCD to direct sunlight for a long time when storing or placing the oscilloscope.

Cleaning:

To clean the outer surface of the instrument and probes:

1. Use a lint-free cloth to remove dust. Be careful to avoid scratching the display filter.

2. Clean the oscilloscope with a soft cloth soaked in water. For a more thorough cleaning, you can use an aqueous solution of 75% isopropyl alcohol.

Note: To avoid damaging the surface of the oscilloscope or probe, do not use any corrosive or chemical cleaning reagents.

Warning: Ensure the device is completely dry before powering it on again to avoid electrical short circuits or personal injury caused by moisture.

The HANTEK HRDO4084C series oscilloscope includes the following features:

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

• 8 independent instruments in one: 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.

Check the shipping package:

After receiving the oscilloscope, check for any damage caused by transportation. If the packaging is seriously damaged, keep it until the machine and accessories pass electrical and mechanical testing.

Check the accessories:

The details of the accessories are provided in Appendix A: Accessories at the end of the user manual. If any accessory is missing or damaged, contact the dealer.

Check the machine:

If you find the instrument is damaged, not working properly, or fails the performance test, contact your dealer.

1. Adjust the Supporting Legs:

Adjust the bracket at the bottom of the machine to tilt the oscilloscope slightly upwards for better placement, observation, and operation.

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, 80Watts MAX. Ensure the instrument is correctly grounded.

3. Turn-on Checkout:

Press the power button on the front panel. During startup, all button lights will illuminate, and the oscilloscope will perform self-checks. The startup screen will appear after completion.

4. Function Inspection:

• Click [Default Setup] to restore factory settings.

• Connect the grounding crocodile clamp of the probe to the grounding terminal.

• Connect the probe to the channel 1 input terminal and the compensation signal output terminal.

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

• Observe the square wave signal to ensure it is displayed normally. Check other channels similarly.

5. Probe Compensation:

When connecting a probe to a channel for the first time, you must match the probe to the input channel. Use a non-metallic screwdriver to adjust the variable capacitance on the probe until the waveform on the screen is “Perfectly compensated” (a perfect square wave).

• Search: Press this key to enter the search settings menu to find events in collected data based on set criteria.

• Zoom: Press this key to turn the delayed scanning function on or off.

• Horizontal Time Base Knob: Rotate to modify the horizontal time base (s/div). Clockwise decreases the time base (zooms in), and counterclockwise increases it (zooms out). Press the knob to switch between “Coarse” and “Fine” adjustment.

• Horizontal Position Knob: Rotate to modify the horizontal position of the trigger point. Press the knob to reset the horizontal position to zero.

• Navigation Control Key: This key combination performs recording and playback navigation, time navigation, and event navigation.

• CH1, CH2, CH3, and CH4 analog input channel switches: Press these buttons to turn the respective channels on or off. The color of the button corresponds to the waveform color.

• Channel vertical offset knob: Rotate this knob to move the waveform for the current channel up or down. Press the knob to reset the vertical offset to zero.

• Channel vertical gear knob: Rotate this knob to change the vertical scale (V/div). Clockwise decreases the gear (increases amplitude), and counterclockwise increases it (decreases amplitude). Press the knob to switch between “coarse” and “fine” adjustment.

The HANTEK HRDO4084C supports multi-touch and gesture operations:

• Tap: Tap a menu, icon, or button on the screen with one finger to operate it. This includes using pop-up numeric or virtual keyboards.

• Drag: After touching and holding a target (like a waveform or window), drag it to the desired position to change its offset or location.

• Pinch & Stretch: Use two fingers to pinch together or spread apart on the screen. This gesture can amplify or reduce the waveform vertically (adjusting V/div) or horizontally (adjusting s/div).

• Rectangle Drawing: Click the Hantek icon, then AreaSel to switch to rectangular drawing mode. Drag a finger on the screen to draw a rectangle. A menu will appear allowing you to select functions like “Histogram,” “Enlarge Level,” “Enlarge Vertical,” or “Enlarge Waveform” for the selected area.

The help system provides instructions for various function buttons and menu keys. The operation steps are:

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

2. Press any other key to obtain help information for that specific key.

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

• Enable/Disable Channel: Press the channel button (e.g., [CH1]) to toggle the channel on or off. You can also tap the channel status label at the bottom of the screen.

• Adjust Vertical Scale: Rotate the vertical gear knob for the selected channel to change the volts per division (V/div).

• Adjust Vertical Offset: Rotate the vertical offset knob for the selected channel to move the waveform up or down. Press the knob to reset the offset to zero.

• Channel Coupling: Open the channel menu and select Coupling. Choose between DC (passes both AC and DC components), AC (blocks DC component), or GND (disconnects the input signal).

• Bandwidth Limit: Open the channel menu and select BW Limit. You can set a bandwidth limit (e.g., 20MHz) to reduce high-frequency noise.

• Probe Ratio: Open the channel menu and select Attenuation. Set the probe ratio to match the probe you are using (e.g., 1X, 10X).

• Input Impedance: Open the channel menu and select Impedance. Choose between 1MΩ (high impedance) or 50Ω (matches 50Ω sources).

• Waveform Invert: Open the channel menu and toggle the Invert setting to display the waveform inverted vertically.

• Fine Tuning: Open the channel menu and select Fine adjustment. This allows for smaller, more precise adjustments to the vertical scale.

• Adjust Horizontal Position: Rotate the horizontal position knob to move the waveform left or right relative to the trigger point. Pressing the knob resets the position.

• Adjust Horizontal Time Base: Rotate the horizontal time base knob to change the time per division (s/div). This expands or compresses the waveform horizontally.

• Pan or Zoom: After stopping acquisition, you can use the horizontal position and time base knobs to pan and zoom in on the captured waveform details.

• Delayed Sweep (Zoom): Press the [Zoom] button to divide the screen into two areas. The top area shows the main waveform, and the bottom area shows a zoomed-in portion. Use the horizontal knobs to adjust the zoomed window’s position and magnification.

Press the [Acquire] button to enter the sample system settings menu.

Timebase Mode:

• YT Mode: Standard mode where the Y-axis is voltage and the X-axis is time.

• XY Mode: Displays a Lissajous pattern where the Y-axis is one channel’s voltage and the X-axis is another’s. Useful for phase difference measurement.

• ROLL Mode: The waveform scrolls from right to left, for observing slow-changing signals.

Acquisition Mode:

• Normal: Samples the signal at equal time intervals. Best for most waveforms.

• Average: Averages multiple waveforms to reduce random noise.

• Peak Detect: Captures the maximum and minimum values in each sampling interval to display glitches and avoid aliasing.

• High Resolution: Averages adjacent points in a single acquisition to reduce noise and create a smoother waveform.

Memory Depth:

Select the number of points to store in a single acquisition. A higher memory depth allows for a higher sample rate at slower time base settings.

Horizontal Expansion:

Choose the reference point for horizontal expansion/compression: Center, Left, Right, Trigger, or User-defined.

Press the [Trig Menu] button to enter the trigger menu.

1. Trigger Type: Select the type of event you want to trigger on. Common types include:

• Edge: Triggers on a rising, falling, or either edge of the signal.

• Pulse: Triggers on pulses with a specific width.

• Video: Triggers on specific lines or fields of standard video signals.

• Slope: Triggers on the signal’s rise or fall time.

2. Trigger Source: Select the input channel (CH1-CH4, EXT, etc.) that the oscilloscope will monitor for the trigger event.

3. Trigger Level: Use the trigger knob to set the voltage level that the signal must cross to cause a trigger. Press the knob to set the level to 50% of the waveform peak.

4. Trigger Mode:

• Auto: The oscilloscope acquires a waveform even without a valid trigger.

• Normal: The oscilloscope acquires a waveform only when a valid trigger event occurs.

• Single: The oscilloscope acquires one waveform upon a valid trigger and then stops.

5. Trigger Holdoff: Set a period of time after a trigger during which the oscilloscope will ignore other trigger events. This is useful for stabilizing the display of complex or periodic waveforms.

Press the [Math] button to enter the mathematical operation menu.

1. Arithmetic Operations: Select Operator to choose between A+B (Addition), A-B (Subtraction), A*B (Multiplication), and A/B (Division). Then select Source A and Source B from the available channels (CH1-CH4, Ref).

2. FFT (Fast Fourier Transform): Select FFT as the operator. You can then configure the source channel, FFT window (Rectangular, Hanning, etc.), frequency range (span/center or start/end), and units (dBm, dBV, Vrms).

3. Logic Operations: Select a logical operator such as A&&B (AND), A||B (OR), A^B (XOR), or !A (NOT). Set the source(s) and the logic threshold for each channel.

4. Function Operations: Select from functions like Intg (Integral), Diff (Differential), Sqrt (Square Root), Lg (Log base 10), Ln (Natural Log), Exp (Exponent), Abs (Absolute Value), and AX+B (Linear function).

5. Digital Filtering: Select from LowPass, HighPass, BandPass, and BandStop filters. Set the source channel and the cutoff frequency (wc).

6. Expression: Create complex mathematical operations by combining multiple operators and sources using the expression editing keyboard.

Press the [Meas] button to enter the measurement menu.

Add a Measurement:

1. Go to Add -> Category and select Horizontal, Vertical, or Other.

2. Select the specific parameter you want to measure from the list (e.g., Freq, Period, VMax, Vpp).

3. Go to Add -> Source A (and Source B for two-channel measurements) to select the channel to measure.

The measurement results will be displayed at the bottom of the screen.

All Measure:

Press [Meas] -> All Measure and select a channel (e.g., CH1). The oscilloscope will display all available measurement parameters for that channel on the screen.

Statistics:

Go to the Statistic menu to turn on statistics for the currently displayed measurements. This will show the current, average, maximum, minimum, standard deviation, and count for each parameter.

Cursor Measurement:

Press the [Cursors] button. Select the Mode as Manual or Track. You can then use the multi-function knob V0 to position the X (time) or Y (voltage) cursors on the waveform. The measurement window will display the values at the cursors (AX, AY, BX, BY) and the difference between them (ΔX, ΔY).

Press the [Decode] button to enter the decoding settings menu.

1. Bus Type: Select the protocol you wish to decode (e.g., UART, I2C, SPI, LIN, CAN).

2. Bus Status: Turn the bus decoding function ON.

3. Source: Enter the Source Settings menu and assign the physical channels (e.g., CH1, CH2) to the protocol’s signal lines (e.g., Tx, Rx for UART; SCL, SDA for I2C).

4. Threshold: Set the logic threshold voltage for each channel used in the decoding.

5. Setting: Enter the Settings menu to configure protocol-specific parameters such as Baud rate, Data Bits, and Parity for UART, or addressing modes for I2C.

6. Display: Configure how the decoded data is displayed. You can choose the format (Hex, Dec, Bin, ASCII), position, and whether to show an Event Table with a detailed log of all decoded data packets.

Once configured, the decoded data will be overlaid on the waveform in the selected format.

Press the [Save/Recall] button to open the save/recall menu.

To Save:

1. Select the type of data to save:

• Save Image: To save a screenshot of the display. You can set the format (*.png, *.bmp, etc.), file name, and choose whether to invert colors.

• Save Wave: To save the waveform data points. You can set the format (*.bin, *.csv), source (screen or full memory), and file name.

• Save Setup: To save the current oscilloscope settings. The format can be *.stp or *.ptr.

2. Select the storage location (internal “Local Disk (C)” or an external “Removable USB Disk (D)”).

3. Name the file and confirm the save operation.

To Load (Recall):

1. Select either Load Wave or Load Setup.

2. Navigate to the storage location where the file is saved.

3. Select the desired file (*.wfm for waveforms, *.stp for setups) and press the Load button.

Press the [G1] or [G2] button to enter the signal generator setting interface for the respective channel.

Output Basic Waveforms:

1. Click on the Wave menu tab and select a basic waveform (e.g., Sine, Square, Ramp, Pulse, Noise, DC).

2. Configure the parameters for the selected wave:

• Frequency: Set the waveform frequency.

• Amplitude: Set the peak-to-peak voltage.

• Offset: Set the DC offset voltage.

• Start Phase: Set the starting phase of the waveform.

• Additional parameters like Duty Cycle (for Square), Symmetry (for Ramp), or Pulse Width (for Pulse) may be available.

3. Turn the output ON from the main generator menu.

Output Arbitrary Waveforms:

1. Select Arb from the Wave menu.

2. You can then:

• Load from CH: Capture a waveform from an oscilloscope channel and use it as the arbitrary waveform.

• Load Stored: Load a previously saved arbitrary waveform file (*.arb).

• Create/Edit: Manually create or edit a waveform point by point using the waveform editor.

1. The horizontal time base might be set too low, resulting in too few sample points being displayed. Try increasing the horizontal time base (turn the s/div knob counter-clockwise) to improve the display effects.

2. If the display type is set to “Vector”, the lines drawn between the sample points may cause this ladder-like appearance. This is a normal representation with low sample density.

1. Check that the probe is correctly and securely connected to the BNC connector of the signal input channel.

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

3. Verify that the circuit or signal source you are testing is actually outputting a signal.

4. If it is a DC signal with a large amplitude, you may need to increase the vertical scale (V/div) to bring the signal into view.

5. Press the [Auto Scale] button. The oscilloscope will automatically try to find the signal and adjust the settings to display it.

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

2. Check for any dirt or debris on the screen or on your fingers. If present, clean the screen and your hands.

3. Check if the oscilloscope is near a strong magnetic field. If it is, move the oscilloscope away from the source of interference.

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

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

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 detected.