HANTEK DSO2D50 (01) PDF Document

To avoid injury and prevent damage to your HANTEK DSO2D50, please adhere to the following 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: The product is grounded through the grounding conductor of the power cable to avoid electric shocks. This must be connected before any input or output terminals.

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

View all terminal rating values: To avoid fire or excessive current, check all rating values and signs on the product 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 when the power is on.

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

Maintain proper ventilation.

Do not operate in a humid environment.

Do not operate in an inflammable or explosive environment.

Keep the product surface clean and dry.

The HANTEK DSO2D50 can be used for measurements under class I. The measurement class definitions are as follows:

Class I: Refers to measurements taken on a circuit not directly connected to the main power supply. For example, measurements on circuits not exported from a main power supply, especially from a protected (internal) main power supply.

Class II: Refers to measurements taken on a circuit directly connected to low-voltage instruments, such as household appliances, portable tools, and similar equipment.

Class III: Refers to measurements taken on construction equipment, such as switchboards, circuit breakers, and circuits in fixed equipment, as well as equipment for industrial use.

Class IV: Refers to measurements taken at the source of low-voltage equipment, such as electricity meters and primary overcurrent protection equipment.

Ventilation:

The oscilloscope uses a fan for forced cooling. Ensure the air intake and exhaust areas are free from obstructions. Provide at least 10 cm of clearance beside, above, and behind the instrument for adequate ventilation. Inadequate ventilation can cause the instrument to overheat and may lead to damage.

Working Environment:

Temperature:

Operating: 0°C to 50°C

Non-operating: -30°C to 70°C

Humidity:

Operating: Below +30°C: ≤95%RH; +30°C to +40°C: ≤75%RH; +40°C to +50°C: ≤45%RH (all without condensation).

Non-operating: Below 65°C: ≤95% RH (without condensation).

Altitude:

Operating: below 3 km

Non-operating: below 15 km

Installation (Overvoltage) Category:

This product is powered by mains conforming to installation category II.

Pollution Degree:

The product is rated for Pollution Degree 2, which means normally only nonconductive pollution occurs, with temporary conductivity caused by condensation expected (e.g., indoor environment).

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 needed following these steps:

1. Use a lint-free cloth to remove dust from the outside of the oscilloscope and probe. Avoid scratching the display filter.

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

Note: To avoid damaging the surface, do not use any corrosive or chemical cleaning reagents. Ensure the device is completely dry before powering it on again to avoid electrical short circuits or injury.

The HANTEK DSO2D50 series digital oscilloscope offers comprehensive functions and performance, including:

Support for 1MΩ/50Ω impedance switching to ensure signal integrity.

A sampling rate of 2GSa/s with a maximum bandwidth of 500MHz.

A built-in arbitrary waveform generator that outputs 5 standard waveforms and supports custom arbitrary waveform and burst output.

Protocol Triggering for five standard serial protocols (UART, LIN, CAN, SPI, IIC) with decoding, for easy analysis of serial bus data.

32 automatic measurement and threshold measurement functions with statistical analysis support.

Two sets of digital voltmeter functions and hardware frequency meter functions.

Standard SCPI remote control instructions for building testing systems.

Save and export functions for settings, CSV, images, reference waveforms, and waveforms.

Four sampling methods: normal, average, peak, and high-precision.

14 operating languages.

Two cursor measurement modes: manual and tracking, with Math function support.

500uV-10V vertical measurement gear with 300VCAT II withstand voltage input.

FFT scale display for convenient reading of results.

Manual, single time, and one-click AUTO measurement for simple and fast waveform measurement.

XY mode with dual window display for easy understanding of waveform phase changes.

The HANTEK DSO2D20 series of digital oscilloscopes includes the following models:

After receiving your HANTEK DSO2D50, please perform the following checks:

1. Check the shipping package: Inspect the packaging 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 listed in Appendix A are present and undamaged. If anything is missing or damaged, contact the dealer.

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

1. Adjust the Supporting Legs:

The oscilloscope has a bracket at the bottom. Adjust it to tilt the oscilloscope slightly upwards for better stability, observation, and operation.

2. Connect to AC Power:

The AC power supply specifications are ~100-120V, 50/60/400Hz or ~100-240V, 50/60Hz, 50 Watts MAX. Use the provided power cord to connect the oscilloscope to a power supply. To avoid electric shock, ensure the instrument is correctly grounded.

3. Turn-on Checkout:

With the unit properly plugged in, press the power button on the lower left corner of the front panel. The oscilloscope will start up, light up all front panel buttons for a few seconds, and perform a series of self-checks. The startup screen will appear after the self-check is complete.

Follow these steps to perform a basic function inspection:

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

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

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

4. Set the probe attenuation ratio to X10 and click the [AUTO SET] button.

5. Observe the screen to see if a square wave signal is displayed normally.

6. Repeat the same method for the CH2 channel. If the displayed square wave does not look correct, you may need to perform probe compensation.

When connecting a probe to any input channel for the first time, you must perform this adjustment to match the probe with the channel. Uncompensated probes can lead to measurement errors.

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

2. Compare the waveform on the screen with the following examples:

Perfectly compensated: The top of the square wave is flat.

Over compensated: The top of the square wave has a peak or overshoot.

Under compensated: The top of the square wave is rounded or sloped.

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

Front Panel Components:

Rear Panel Components:

Horizontal Control System:

SEC/DIV (Time Base) Knob: Rotate to modify the horizontal time base (time per division). Clockwise rotation reduces the time base (zooms in), and counterclockwise increases it (zooms out). Pressing the knob switches between “coarse” and “fine” adjustment.

POSITION (Displacement) Knob: Rotate to modify the horizontal displacement (trigger position). This moves the waveform left and right. Pressing the knob resets the horizontal displacement to zero.

Vertical Control System:

CH1/CH2 MENU Buttons: Press to enable or disable the respective analog input channel. The channel color corresponds to the waveform color.

POSITION (Offset) Knob: Rotate to modify the vertical offset of the current channel’s waveform, moving it up and down. Pressing the knob resets the vertical offset to zero.

VOLTS/DIV (Gear) Knob: Rotate to modify the vertical gear (volts per division). Clockwise rotation decreases the gear (zooms in), and counterclockwise increases it (zooms out). Pressing the knob switches between “coarse” and “fine” adjustment.

MATH MENU Button: Press to open the mathematical operation function menu (A+B, A-B, A × B, A/B, FFT).

Trigger Control System:

LEVEL Knob: Rotate to modify the trigger level. Pressing the knob sets the trigger level to 50% of the waveform’s peak-to-peak value.

TRIG MENU Button: Press to open the trigger operation menu.

FORCE TRIG Button: Press to force the oscilloscope to generate a trigger signal.

Wave Gen (Signal Generator) Control:

WAVE GEN Button: Press to open the signal generator channel menu.

BURST Button: Press to access burst settings for the generator.

1. Hantek logo: Represents the Hantek trademark.

2. Running status: Displays the oscilloscope’s operating status (READY, TD, STOP, AUTO).

3. Horizontal time base: Shows the time represented by each horizontal grid division.

4. Sampling rate: Displays the current sampling rate of the analog channel.

5. Storage depth: Shows the current storage depth of the simulated channel.

6. Horizontal displacement: Displays the horizontal position value.

7. Trigger level: Displays the current trigger level of the analog channel.

8. Operation menu: The menu corresponding to the pressed function button.

9. USB: Icon indicates if a USB drive is connected.

10. Signal generator: Displays the open status of the signal generator.

11. Message box: Displays prompt messages.

12. CH2 status label: Displays the vertical gear, offset, channel coupling, and bandwidth limitations for CH2.

13. CH1 status label: Displays the vertical gear, offset, channel coupling, and bandwidth limitations for CH1.

14. Simulate channel labels/waveforms: Channel labels and waveforms are color-coded for easy identification.

The help system provides instructions for various function buttons and menu keys. To use it:

1. Press the [HELP] button to enter the help module.

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

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

Enable/Disable Analog Channel:

Press the [CH1] or [CH2] button to toggle the respective channel on or off. The button light indicates when the channel is on.

Adjust Vertical Scale (Volts/Div):

Rotate the VOLTS/DIV knob for the selected channel to change the vertical scale. Clockwise decreases the value (zooms in), counterclockwise increases it (zooms out).

Adjust Vertical Offset:

Rotate the POSITION knob for the selected channel to move the waveform up or down. Press the knob to reset the offset to zero.

Set Channel Coupling:

Press the channel button (e.g., [CH1]) to open the menu. Select the coupling option. You can choose from:

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

AC: Blocks the DC component of the signal.

Ground: Disconnects the input signal and grounds the channel input.

Set Bandwidth Limit:

In the channel menu, select the BW menu. You can choose to turn the limit off or select a specific bandwidth (e.g., 20M, 100M) to reduce noise.

Set Input Impedance:

In the channel menu, select the Impedance menu. Choose between 1M Ω (high impedance) or 50 Ω (for matching with 50 Ω sources).

Invert Waveform:

In the channel menu, select the inverting menu to turn waveform inversion on or off.

Use Fine Tuning:

In the channel menu, select the Fine adjustment menu. This allows for small-range adjustments to the vertical gear, providing higher vertical resolution.

To ensure correct amplitude readings, the probe attenuation ratio set on the oscilloscope must match the probe being used. To set it:

1. Press the channel button (e.g., [CH1]) to open its menu.

2. Select the Attenuation menu option.

3. Choose the ratio that matches your probe. The default is 1X, and the range is 0.01X to 1000X.

Press the [HORIZ MENU] button to select a horizontal mode.

YT Mode:

This is the standard oscilloscope mode where the Y-axis represents voltage and the X-axis represents time. When the horizontal time base is set to 100 ms/div or slower, the oscilloscope enters a scanning mode, continuously displaying collected waveform data.

XY Mode:

In this mode, both the X and Y axes represent voltage levels, with CH1 typically providing the X-axis signal and CH2 providing the Y-axis signal. This is useful for creating Lissajous figures to measure the phase difference between two signals of the same frequency.

Roll Mode:

Select Roll mode via [HORIZ MENU] -> Mode -> Roll. In this mode, the waveform scrolls continuously from right to left across the screen. The adjustable range for the horizontal gear in this mode is 100ms to 100s.

Press the [Acquire] button, then select the Acquire Mode menu. The available modes are:

Normal Mode:

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

Average Mode:

The oscilloscope averages multiple sampled waveforms to reduce random noise and improve vertical resolution. You can set the number of averages (4, 8, 16, 32, 64, 128). A higher number reduces more noise but slows the waveform’s response to changes.

Peak Mode:

The oscilloscope finds the maximum and minimum values of the signal within each sampling interval. This is useful for capturing narrow pulses and avoiding signal aliasing, though the displayed noise may be higher.

High Resolution:

This mode uses a supersampling technique that averages adjacent points of a single sampled waveform, reducing random noise and producing a smoother display. It is typically used when the sampling rate of the digital converter is higher than the storage rate of the acquisition memory.

A correct trigger setup is essential for a stable waveform display.

1. Set Trigger Type: Press [TRIG MENU], then select the Type menu. For a basic trigger, select Edge Trigger.

2. Set Trigger Source: In the trigger menu, select the Source menu. Choose the channel connected to your signal (CH1 or CH2).

3. Set Trigger Level: Turn the LEVEL knob to adjust the trigger level. A trigger level line will appear on the screen, and the oscilloscope will trigger when the signal crosses this voltage level. You can press the LEVEL knob to automatically set the level to 50% of the signal’s amplitude.

4. Set Slope: In the Edge Trigger menu, select the Slope menu. Choose whether to trigger on the signal’s Rising edge, Falling edge, or Either.

5. Set Trigger Mode: In the trigger menu, select the Mode menu. Auto mode is recommended for general use as it will display a waveform even without a valid trigger. Normal mode will only display a waveform after a valid trigger event occurs.

The HANTEK DSO2D50 offers multiple advanced trigger types. Access them by pressing [TRIG MENU] and selecting the Type menu.

Pulse Trigger: Triggers on positive or negative pulses of a specified width (equal to, not equal to, greater than, or less than a set time value).

Video Trigger: Triggers on standard analog video signals (NTSC, PAL/SECAM). You can trigger on specific lines, fields (odd, even, all), or any line.

Slope Trigger: Triggers on a signal’s positive or negative slope transition time between two user-defined voltage levels.

Overtime Trigger: Triggers when the time interval from a rising (or falling) edge to the next falling (or rising) edge is greater than a set time.

Window Trigger: Triggers when the input signal passes through either a high or low trigger level. It provides two adjustable level thresholds.

Pattern Trigger: Triggers on a specified logical pattern (H, L, X) across the channels, with the option to trigger on a rising or falling edge of one channel.

Interval Trigger: Triggers when the time interval between two consecutive rising (or falling) edges satisfies a set time condition.

Under Amp (Runt) Trigger: Triggers on a pulse that crosses one trigger level but fails to cross a second trigger level.

Serial Bus Triggers: UART, LIN, CAN, SPI, and I2C triggers for specific events on serial communication buses like start conditions, specific data, or errors.

Arithmetic Operations:

The oscilloscope supports point-by-point Addition (A+B), Subtraction (A-B), Multiplication (A*B), and Division (A/B).

1. Press the [Math] button.

2. Select the Operator menu and choose the desired arithmetic operation.

3. Select Source 1 and Source 2 from the available channels (CH1, CH2).

4. Use the Offset menu to adjust the vertical offset of the resulting math waveform.

5. Use the Scale menu to adjust the vertical scale of the math waveform.

FFT (Fast Fourier Transform):

The FFT function calculates the frequency spectrum of a source waveform.

1. Press the [Math] button.

2. Select the Operator menu and choose FFT.

3. Select the information Source (CH1, CH2).

4. Adjust the Center frequency and frequency Span using the multifunction knob.

5. Set the Ref Level (vertical offset) and Scale (vertical gear).

6. Select the Vertical Units (dB or VRms).

7. Choose a Window function to reduce spectral leakage. Options are available for different signal types.

The HANTEK DSO2D50 can automatically measure various waveform parameters.

1. Press the [Measure] button to enter the measurement menu.

2. Select the Source menu tab to choose the channel (CH1 or CH2) you want to measure.

3. Select the Type menu tab and use the multifunction knob to select the desired measurement item. Up to 32 different measurements are available, including:

Voltage Parameters: PkPk, Vmax, Vmin, Vamp, Vtop, Vbase, Vmid, Average, RMS.

Time Parameters: Frequency, Period, Rise Time, Fall Time, +Width, -Width, +Duty, -Duty.

Other Parameters: OverShoot, PreShoot, Bandwidth, and various delay measurements (FRR, FFF, etc.).

4. To display all available measurements for the current source, select the All Measure menu item. The results will be displayed on the screen.

5. To enable statistical analysis of the measurements (displaying current, average, min, max, etc.), select the Statistics menu and turn it on.

Cursors can be used to manually measure time (X-axis) and voltage (Y-axis) values on a waveform.

1. Press the [Cursor] button to enter the cursor settings menu.

2. Select the Mode menu and choose either Manual or Track mode.

A measurement window will appear on the screen displaying values like AX, BX, AY, BY, and the deltas (differences).

In Manual Mode:

You can freely position the two vertical (X) cursors and two horizontal (Y) cursors anywhere on the screen.

3. Select the Source for the measurement (CH1, CH2, or MATH).

4. In the menu, select which cursor you want to adjust (e.g., AX, BX, AY, BY).

5. Rotate the multifunction knob V0 to move the selected cursor to the desired position on the waveform. The measurement window will update in real-time.

In Track Mode:

The cursors are “locked” to the waveform. When you adjust the horizontal position of a cursor, its vertical position will automatically track the voltage of the waveform at that point.

3. Select the Source for the measurement.

4. Select a horizontal cursor (AX or BX) to adjust.

5. Rotate the multifunction knob V0 to move the cursor horizontally. The cursor marker will stay on the waveform trace, and both its X and Y values will be updated in the measurement window.

Follow these steps to upgrade the oscilloscope’s firmware. The process takes approximately 5 minutes.

1. Insert a USB storage device containing the upgrade package into the USB HOST interface on the front panel.

2. Press the [Utility] button to enter the auxiliary menu.

3. Press the Upgrade -> Upgrade Firmware software button.

4. Rotate the multifunction knob V0 to select the upgrade file and press V0 to confirm.

5. Press the Start Upgrade soft key to begin the firmware upgrade.

6. After the upgrade is complete, the oscilloscope will restart automatically. The new firmware version will be active. It is recommended to perform a self-calibration after upgrading.

The Pass/Fail function monitors a signal and indicates when it deviates from a defined template.

1. Press [Utility] -> Pass/Fail to enter the function menu.

2. Enable the Test: Select the first menu option to toggle the test On or Off.

3. Select Source: Choose the channel (CH1 or CH2) to monitor.

4. Create the Rule (Regular):

Select the Regular menu.

Use the Vertical and Horizontal options to set the tolerance range (the size of the mask around the waveform).

Select Create to generate the rule template based on the current waveform and your tolerance settings.

5. Configure Output (Mode): Select what happens on a Pass or Fail event. Options include outputting a pulse train (Pass/Fail) or outputting a pulse train with a ringing sound (Pass Ring/Fail Ring).

6. Run the Test: Select the Run menu option to start the test. Select Stop to halt it.

The oscilloscope can decode UART, LIN, CAN, SPI, and IIC (I2C) protocols.

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

2. Bus Type: Select the type of bus you want to decode from the list.

3. Source: Assign the physical oscilloscope channels (CH1, CH2) to the appropriate signal lines for the chosen protocol (e.g., for IIC, assign one channel to SCL and another to SDA).

4. Protocol Settings: Configure the specific parameters for your bus. This will vary depending on the protocol and may include:

Baud Rate: Set the communication speed.

Idle Level: Define the logic level when the bus is inactive (high or low).

Data Bits/Width: Set the number of bits per data frame.

Parity: Set the parity type (None, Odd, Even) for protocols like UART.

Slope/Clock Edge: For synchronous protocols like SPI, define whether data is sampled on the rising or falling edge of the clock.

5. Display (Disp): Choose how to display the information, typically as decoded data overlaid on the waveform.

Once configured, the oscilloscope will display the decoded data (e.g., in hexadecimal) directly below the corresponding portion of the waveform on the screen.

You can save and recall data to either the internal memory or an external USB drive.

1. Press the [SAVE/RECALL] button.

2. Select Save Type: Choose what you want to save from the Type menu. Options include:

SetUp: Saves the current oscilloscope configuration.

Waveform: Saves the waveform data points.

Reference: Saves a waveform to be used as a reference for comparison.

CSV: Saves waveform data as a Comma Separated Values file (USB only).

Image: Saves a screenshot of the display (USB only).

3. Select Save Location: In the Save To menu, choose Internal or External (for a connected USB drive).

4. Choose File Location/Name: Use the menus and multifunction knob to select a file slot (for internal memory) or to name a file (for external storage).

5. Save: Select the Save menu option to complete the save operation.

To recall data, follow a similar procedure, but use the Recall From and Recall menu options instead of Save To and Save.

Pressing the [Default Setup] button restores the oscilloscope to its factory settings. The key settings are:

The models with a signal source include a built-in AWG.

Output a Basic Waveform:

1. Press the [WAVE GEN] button to enter the generator settings.

2. Waveform: Select the desired waveform type (Sine, Square, Ramp, Exp, Noise, DC, or Arbitrary).

3. Frequency: Set the waveform frequency.

4. Amplitude: Set the peak-to-peak amplitude of the waveform.

5. Offset: Set the DC offset voltage.

6. Symmetry/Duty Cycle: Adjust the duty cycle for a square wave or symmetry for a ramp wave.

7. Impedance: Select the output impedance (high impedance or 50 Ω).

Use Modulation:

The AWG supports Amplitude Modulation (AM) and Frequency Modulation (FM).

1. In the AWG menu, select the Type menu and choose AM or FM.

2. Modulation waveform: Select the shape of the modulating wave (sine, square, etc.).

3. Modulation frequency: Set the frequency of the modulating wave.

4. Modulation depth (for AM) / Deviation (for FM): Set the intensity of the modulation.

Use Burst:

1. Press the [Burst] button.

2. Type of burst: Choose N cycle (for a specific number of cycles) or Infinite.

3. Counting: If N cycle is selected, set the desired number of cycles for the burst.

4. Trigger: Press the trigger button to output the configured pulse train.

If the oscilloscope does not turn on after pressing the power switch, follow these steps:

1. Check that the power cord is connected properly to the side of the oscilloscope.

2. Check that the power switch is fully pressed.

3. After checking the above, try restarting the instrument.

4. If the oscilloscope still does not turn on, please contact your local dealer or Hantek technical support.

If you observe serious distortion of the input signal, check the following:

1. Ensure the oscilloscope probe is properly connected to the BNC channel input.

2. Ensure the probe tip and ground lead are properly connected to the circuit being measured.

3. Check if the probe is properly compensated. If not, perform the probe compensation procedure as described in the manual.

If there is no waveform on the display, follow these troubleshooting steps:

1. Check that the probe is properly connected to the BNC connector of the signal input channel.

2. Check that the channel is enabled (the corresponding CH1 or CH2 menu button should be lit).

3. Verify that there is a signal being output from the circuit you are testing.

4. If it is a DC signal with a large amplitude, the trace may be off-screen. Try increasing the vertical volts/div range.

5. Press the [AUTO SET] button to allow the oscilloscope to automatically detect the signal and adjust settings.

6. If there is still no waveform display, please contact Hantek technical support.

If the oscilloscope cannot recognize your USB flash drive, check the following:

1. Make sure the USB flash drive is functioning properly by testing it in another device.

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

3. Confirm that the USB flash drive is formatted with the FAT32 file system.

4. Restart the oscilloscope and re-insert the USB drive for inspection.

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

If the waveform cannot be triggered and appears unstable, try the following:

1. Check that the trigger source (in the Trigger Menu) is set to the same channel as your input signal.

2. Check if the trigger level is adjusted correctly. The trigger level must be within the vertical range of the signal. Try pressing the LEVEL knob to automatically set the level to the signal’s center point.

3. Check if the trigger method (type) is correct for your signal. The default is edge triggering, which works for many signals, but complex signals may require a different trigger type (e.g., pulse, video).