HANTEK HRDO4104E (01) PDF Document

To ensure safe operation of your HANTEK HRDO4104E, please follow these safety precautions:

• Only professionally authorized personnel should perform repairs.

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

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

• Ensure the product is properly grounded through the power cable’s grounding conductor to avoid electric shocks.

• Do not connect the ground wire of the probe to high voltage.

• Check all rating values and signs on the product to avoid fire or excessive current. Consult the manual for details before connecting.

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

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

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

• Maintain proper ventilation and 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:

Inspect the oscilloscope and probe frequently and clean the outer surfaces as follows:

1. Use a lint-free cloth to remove dust from the outside of the oscilloscope and probe. 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 may 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: Before powering the device on again, ensure it is completely dry to avoid electrical short circuits or personal injury from moisture.

1. 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.

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

3. Check the Machine: If the instrument appears damaged, is not working properly, or fails a performance test, contact your dealer.

4. Adjust the Supporting Legs: The bracket at the bottom can be adjusted to tilt the oscilloscope upwards for better placement and observation.

5. 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.

6. Turn-on Checkout: Press the power button on the front panel. The oscilloscope will perform a series of self-checks, and after completion, the startup screen will appear.

Function Inspection:

1. Click [Default Setup] in the button area to restore factory settings.

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

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

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

5. Observe the waveform to see if a normal square wave signal is displayed.

Probe Compensation:

When connecting a probe to an 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 with the “Perfectly compensated,” “Over compensated,” and “Under compensated” diagrams in the user manual.

3. If the waveform is not perfectly compensated, use a non-metallic screwdriver to adjust the variable capacitance on the probe until the waveform is correct. Repeat if necessary.

The HANTEK HRDO4104E supports several multi-touch and gesture operations:

1. Tap:

Tap a menu or function on the screen with one finger. This can be used to operate menus, use the pop-up numeric keyboard, use the virtual keyboard for naming, or close pop-up windows.

2. Drag:

After holding down a target, drag it to the desired position. This can be used to drag a waveform to change its displacement/offset or drag a window to change its position.

3. Pinch & Stretch:

Bring two fingers together or apart on the screen. This can amplify or reduce the waveform. Vertical pinching adjusts the vertical gear, and horizontal pinching adjusts the horizontal gear.

4. Rectangle Drawing:

Click on the [Hantek] logo, then click on AreaSel to switch to rectangular drawing mode. Drag your finger to draw a rectangle on the screen. A menu will appear with options to interact with the selected area, such as “Histogram,” “Enlarge Level” (horizontal zoom), “Enlarge Vertical” (vertical zoom), or “Enlarge Waveform” (zoom in both directions).

The HANTEK HRDO4104E supports two methods for setting parameters:

1. Using the Multi-functional Knob (V0): For parameters displayed on a menu, you can rotate the multi-functional knob V0 in the button area to select different parameter items or modify their values.

2. Using the Numeric Keypad: After clicking on a parameter in a menu, a numeric keypad will pop up on the screen. You can use the touch screen to enter values and select units. The keypad also offers options to set parameters to maximum, minimum, or default values, and to clear the input box.

You can also click a menu label button directly to switch between predefined settings.

You can configure various vertical settings for each channel (CH1-CH4) on your HANTEK HRDO4104E:

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

• Adjust Vertical Scale (V/div): Rotate the vertical gear knob for the selected channel or use the touch screen menu to adjust the volts per division.

• Adjust Vertical Offset: Rotate the vertical offset knob for the selected channel or drag the waveform up/down on the touch screen to change its vertical position.

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

• Bandwidth Limit: In the channel menu, select BW Limit to reduce high-frequency noise. You can choose to turn it off or limit bandwidth to 20M, 100M, 200M, or 350M.

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

• Input Impedance: Select Impedance in the channel menu to switch between 1MΩ (high impedance) and 50Ω (for matching 50Ω sources).

• Waveform Invert: Turn the Invert function on or off in the channel menu to vertically flip the waveform.

• Amplitude Unit: Select the desired unit (V, A, W, U) from the Unit menu.

• Fine Tuning: Switch between coarse and fine adjustment for the vertical scale to make small, precise changes.

• Channel Delay: Set a delay time from -100ns to 100ns to correct for probe cable transmission delays (zero offset).

• Offset Cal: Use this to correct for small DC offsets caused by temperature drift or interference.

• Channel Label: Assign a custom label to the channel for easier identification.

You can adjust the horizontal settings using the on-screen labels, the physical knobs in the Horizontal control section, or touch screen gestures.

Adjust Horizontal Position:

This changes the trigger point’s position relative to the center of the screen, moving the waveform left or right.

• Rotate the horizontal position knob.

• Click the horizontal displacement label at the top of the screen to open a pop-up menu for direct entry.

• Drag the waveform left or right using the touch screen.

Adjust Horizontal Time Base (s/div):

This changes the amount of time represented by each horizontal grid division, effectively zooming in or out on the time axis.

• Rotate the horizontal time base knob.

• Click the time base label at the top of the screen for direct entry.

• Use a horizontal pinch or stretch gesture on the touch screen.

Delayed Sweep (Zoom):

This function horizontally magnifies a section of the waveform for detailed viewing.

• Press the [Zoom] button to divide the screen into two areas: the top half shows the original waveform (main time base), and the bottom half shows the magnified section (delayed scanning time base).

• Adjust the horizontal position knob to move the magnified window left or right, and adjust the horizontal time base knob to change the zoom level.

You can configure the acquisition and timebase modes by pressing the [Acquire] button.

Timebase Modes:

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

• XY Mode: This mode displays one channel’s voltage on the X-axis and another’s on the Y-axis. It is useful for measuring the phase difference between two signals of the same frequency using the Lissajous method.

• ROLL Mode: In this mode, the waveform scrolls from right to left, which is useful for observing low-frequency signals. It is available for horizontal time base settings of 50ms/div and slower.

Acquisition Modes:

• Normal: The oscilloscope samples the signal at equal time intervals. This 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 (from 2 to 1024).

• Peak: The oscilloscope captures the maximum and minimum values within each sampling interval. This mode is useful for seeing narrow pulses and avoiding aliasing.

• High Resolution: This mode averages adjacent points from a single acquisition to reduce noise and produce a smoother waveform. It is typically used when the sampling rate is higher than the storage rate of the acquisition memory.

The trigger system stabilizes the display by starting the acquisition at the same point on a repeating waveform. You can enter the trigger menu by pressing the [Trig Menu] button or tapping the trigger tab on the screen.

Key Trigger Settings:

1. Trigger Type:

Select the type of event to trigger on. The HANTEK HRDO4104E offers numerous types, including:

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

• Pulse: Triggers on pulses with a specific width and polarity.

• Video: Triggers on standard analog video signals (NTSC, PAL).

• Slope: Triggers on the time it takes for a signal to rise or fall between two voltage levels.

• Protocol Triggers: UART, I2C, SPI, LIN, CAN, and more for triggering on specific serial bus events.

• Other types include Window, Runt, Overtime, Logic, Pattern, etc.

2. Trigger Source:

Select the input signal for the trigger circuit. Options include any of the analog channels (CH1-CH4), an external trigger signal (EXT), or any of the digital channels.

3. Trigger Level:

Set the voltage level that the trigger source signal must cross to cause a trigger. Adjust this using the Trigger knob.

4. Trigger Mode:

• Auto: The oscilloscope triggers when a valid condition is met but will also generate untriggered acquisitions to display a live signal even without a valid trigger.

• Normal: The oscilloscope only acquires and updates the display when a valid trigger condition is met.

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

5. Trigger Holdoff:

Set a period of time after a trigger during which the oscilloscope will not trigger again. This is useful for stabilizing the display of complex waveforms like pulse trains.

The HANTEK HRDO4104E can perform a wide variety of automated measurements. You can access these by pressing the [Meas] button.

Measurement Categories:

• Horizontal (Time): Freq, Period, RiseT (Rise Time), FallT (Fall Time), PosPW (Positive Pulse Width), NegPW (Negative Pulse Width), PDuty (Positive Duty Cycle), NDuty (Negative Duty Cycle), BWidth (Burst Width), MaxTime, MinTime, +Edges, -Edges, +Pulses, -Pulses, TrigCnt (Trigger Count), +slope, -slope.

• Vertical (Voltage): VMean, VMax, VMin, PkPk (Peak-to-Peak), VTop, VMid, VBase, VAmp (Amplitude), VRms, Vovr (Overshoot), Vper (Preshoot), PVRms, PVMeas, Vfov, Vrpr.

• Other (Delay and Area): FRR, FFF, FRF, FFR, LRR, LRF, LFR, LFF, +Phase, -Phase, +AreaDC, -AreaDC, perAreaDC, absAreaDC, +AreaAC, -AreaAC, perAreaAC, absAreaAC.

How to Use:

1. Press [Meas] -> Add.

2. Select a measurement category (Horizontal, Vertical, Other).

3. Select a specific measurement parameter from the list.

4. Select the source channel(s) for the measurement.

The measurement result will be displayed at the bottom of the screen. You can add multiple measurements simultaneously. You can also turn on statistics for any measurement to see the current, average, max, min, and standard deviation values.

Cursors are markers you can move on the screen to take manual measurements of time (X cursors) and voltage (Y cursors). Press the [Cursors] button to enter the menu.

Cursor Modes:

• Manual Mode: You can freely position two cursors (A and B) on the screen to measure values.

• Track Mode: The cursors “stick” to the waveform of a selected source. When you move a cursor horizontally, it automatically adjusts its vertical position to stay on the waveform.

How to Perform a Manual Measurement:

1. Press [Cursors] and set the Mode to Manual.

2. Select the cursor type (X or Y).

3. Select the source channel to measure.

4. Use the menu options (AX, BX for X-cursors; AY, BY for Y-cursors) and the multi-function knob (V0) to position cursor A and cursor B.

5. The cursor measurement window will display the absolute position of each cursor (AX, AY, BX, BY) and the difference between them (BX-AX and BY-AY).

The HANTEK HRDO4104E can perform various mathematical operations on channel waveforms. Press the [Math] button to open the menu.

Available Operations:

• Arithmetic: A+B, A-B, A*B, A/B (addition, subtraction, multiplication, division between two sources).

• FFT (Fast Fourier Transform): Displays the frequency spectrum of a signal.

• Logic: A&&B (AND), A||B (OR), A^B (XOR), !A (NOT) on waveforms based on a set threshold.

• Function: Intg (integral), Diff (differential), Sqrt (square root), Lg (log base 10), Ln (natural log), Exp (exponent), Abs (absolute value).

• Digital Filtering: LowPass, HighPass, BandPass, BandStop.

Example: Setting up an FFT:

1. Press [Math] and select Operator -> FFT.

2. Select the Source channel you want to analyze.

3. Adjust the vertical Scale (e.g., in dBm/div) and Offset to frame the spectrum properly.

4. Set the X frequency range by defining the Span and Center frequency, or by setting the Start and End frequencies.

5. Select a Window function (e.g., Hanning, Flattop) to reduce spectral leakage. The choice depends on the signal type.

6. You can use the Peak Search function to automatically mark peaks in the spectrum.

You can save and load various file types to the oscilloscope’s internal memory or an external USB drive. Press the [Save/Recall] button to access the menu.

Storage Type (Saving):

• Save Image: Saves a screenshot of the display. You can choose the format (*.png, *.bmp, *.jpg, *.tif), file name, and color options.

• Save Wave: Saves the waveform data points from the screen or the full acquisition memory. You can choose the format (*.bin, *.csv) and source.

• Save Setup: Saves the current configuration of the oscilloscope. You can choose the file name.

Load Type (Recalling):

• Load Wave: Loads a previously saved waveform file (*.wfm) onto the screen as a reference waveform.

• Load Setup: Loads a previously saved setup file (*.stp), restoring the oscilloscope to that configuration.

Disk Management:

In the [Save/Recall] -> Disk menu, you can manage files on internal and external storage. Functions include:

• Browsing files and folders.

• Creating a new folder (NewFolder).

• Copying, pasting, renaming, and deleting files.

The HANTEK HRDO4104E can decode several common serial protocols. Press the [Decode] button to enter the decoding menu.

General Setup Steps:

1. Select Bus Type: In the Decode menu, choose the protocol you want to decode (e.g., UART, I2C, SPI, CAN, LIN).

2. Enable Bus Status: Turn the bus status to ON.

3. Configure Source: Assign the correct oscilloscope channels to the bus signals. For example:

• For I2C, assign channels to the clock (SCL) and data (SDA) lines.

• For UART, assign channels to the transmit (Tx) and receive (Rx) lines.

4. Set Thresholds: For each channel used, set the voltage threshold that distinguishes a high logic level from a low one.

5. Configure Bus Parameters: Set protocol-specific parameters. For example:

• For UART/CAN/LIN, set the Baud rate.

• For UART, set data bits, parity, and stop bits.

• For I2C, set the address format (7 or 10 bits).

6. View Decoded Data: The decoded data will be overlaid on the waveform. You can also open an Event Table to view the decoded data in a list format, which is useful for long captures.

1. The horizontal time base might be set too low, resulting in too few sample points per waveform feature. Try increasing the horizontal time base (turn the s/div knob clockwise) to improve the display.

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

If you have a signal connected but no waveform appears on the screen, check the following:

1. Ensure the probe is correctly and securely connected to the BNC input connector for the channel you are using.

2. Check that the channel is turned on. Press the corresponding channel menu button (e.g., CH1, CH2) to enable it.

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

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

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

If you still see no waveform, please contact technical support.

1. Check if the touch screen function has been disabled. Press the [Touch Lock] key in the button area to re-enable the touch screen function.

2. Check for any dirt or debris on the screen or on your fingers. Clean the screen if necessary.

3. The oscilloscope may be too close to a strong magnetic field, which can interfere with the touch screen. Move the oscilloscope away from any potential sources of strong magnetic fields.

If the touch screen still does not work, please contact technical support.

1. Check if the USB drive is functioning correctly 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. Try restarting the oscilloscope and reinserting the USB drive for inspection.

If the USB drive is still not recognized, please contact technical support.

1. Check if the main power switch of the machine is turned on.

2. Ensure the power cord is properly and securely connected to the oscilloscope and the power outlet.

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

4. Try turning the machine on again.

If the oscilloscope still cannot be turned on, please contact technical support.