HANTEK DSO2C50 (01) PDF Document

Please read the following safety precautions carefully to avoid injury and to prevent damage to your HANTEK DSO2C50:

• Only professionally authorized personnel can perform repairs.

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

• Connect and disconnect correctly: Before connecting the probe to the 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 a grounding conductor of the power cable to avoid electric shocks. The grounding conductor must be connected to the ground.

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

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

• Do not operate with the cover open.

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

• Do not operate if the product is suspected to be faulty. Have qualified maintenance personnel check it.

• Maintain proper ventilation.

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

• Keep the product surface clean and dry.

The manual for the HANTEK DSO2C50 uses specific terms to highlight important information:

• Warning: Indicates that an operation may cause immediate damage to you.

• Note: Indicates that an operation may cause damage to the product or other property.

On the product itself, a “Warning” sign indicates a potential hazard may be caused to you if you do not perform an operation correctly.

Ventilation Requirement:

The HANTEK DSO2C50 uses a fan for cooling. Ensure that the air intake and exhaust areas are free from obstructions. When using the oscilloscope on a bench-top or in a rack, provide at least 10 cm of clearance beside, above, and behind the instrument for adequate ventilation. Inadequate ventilation may cause a temperature increase, which could damage the instrument.

Working Environment:

• Temperature:

– Operating: 0°C to 50°C

– Non-operating: -30°C to 70°C

• Humidity:

– Operating (Below +30°C): ≤95%RH (without condensation)

– Operating (+30°C to +40°C): ≤75%RH (without condensation)

– Operating (+40°C to +50°C): ≤45%RH (without condensation)

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

• Altitude:

– Operating: below 3 km

– Non-operating: below 15 km

Care:

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

Cleaning:

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 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: Before powering on the device again, ensure that it is dry enough to avoid electrical short circuits or personal injury caused by moisture.

The HANTEK DSO2C50 digital oscilloscope has the following features:

• Supports 1MΩ/50Ω impedance switching to ensure signal integrity.

• The sampling rate of the entire system is 2GSa/s, with a maximum bandwidth of 500MHz.

• Built-in arbitrary waveform generator, capable of outputting 5 standard waveforms, supports custom arbitrary waveform output, and supports burst output.

• Protocol Trigger with five standard serial protocol triggers and decoding, supporting protocols including UART, LIN, CAN, SPI, IIC.

• 32 automatic measurement and threshold measurement functions, with test results supporting statistical analysis.

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

• Save and export function, which can save 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, and the Math function also supports cursor measurement.

• 500uV-10V vertical measurement gear, 300V CAT II withstand voltage input.

• FFT scale display for convenient reading of results.

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

• XY mode supports dual-window display, making it easy to understand waveform phase changes.

The DSO2D20 series consists of the following models:

After receiving your HANTEK DSO2C50, please perform the following checks:

1. Check the shipping package: If the packaging cartons or protective foam pads are seriously damaged, keep them until the entire machine and accessories pass electrical and mechanical testing.

2. Check the accessories: The details of the accessories are provided in Appendix A of the user manual. If any accessory is missing or damaged, contact the dealer responsible for this business.

3. Check the machine: If you find the instrument is damaged, not working properly, or unable to pass the performance test, contact the dealer responsible for this business.

1. Adjust the Supporting Legs: The machine has a bracket at the bottom. Adjust it to tilt the oscilloscope slightly upwards for better stability, observation, and operation. Close the bracket when not in use.

2. Connect to AC Power: The AC power supply specifications for this oscilloscope are ~100-240V, 50/60Hz; 50 Watts MAX. Connect the oscilloscope to the power supply using the provided power cord.

1. Turn-on Checkout: With the machine properly plugged in, press the power button on the lower left corner of the front panel. The oscilloscope will perform self-checks, and then the startup screen will appear.

2. Function Inspection:

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

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

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

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

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

When connecting a probe to any input channel for the first time, this adjustment is required to match the probe with the input channel. Uncompensated or offset probes can lead to measurement errors.

Steps for Probe Compensation:

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

2. Compare the waveform on the screen with the reference figure in the manual. The waveform can be “Perfectly compensated,” “Over compensated,” or “Under compensated.”

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

Tip: The probe compensation signal can only be used for probe compensation adjustment and cannot be used for calibration.

Horizontal Controls:

• Horizontal time base knob (SEC/DIV): Rotate to change the time per division. Clockwise zooms in (reduces time/div), counter-clockwise zooms out (increases time/div). Press to switch between coarse and fine adjustment.

• Horizontal displacement knob (POSITION): Rotate to move the waveform left or right. Press to reset the horizontal displacement to zero.

Vertical Controls:

• CH1/CH2 MENU buttons: Press to enable or disable the corresponding channel and open its menu.

• Channel vertical offset knob (POSITION): Rotate to move the waveform up or down. Press to reset the vertical offset to zero.

• Channel vertical gear knob (VOLTS/DIV): Rotate to change the volts per division. Clockwise decreases V/div, counter-clockwise increases it. Press to switch between coarse and fine adjustment.

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

Trigger Controls:

• Trigger knob (LEVEL): Rotate to adjust the trigger level. Pressing it sets the 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 a trigger event.

Quick Keys for Operating Mode:

• AUTO SET: Automatically adjusts settings for the best waveform display.

• SINGLE SEQ: Sets the trigger mode to single shot.

• RUN/STOP: Starts or stops waveform acquisition.

Menu Function Buttons:

• SAVE/RECALL: Opens the menu for saving and recalling settings and waveforms.

• MEASURE: Opens the automatic measurement menu.

• ACQUIRE: Opens the acquisition settings menu.

• UTILITY: Opens the system settings menu (language, sound, etc.).

• CURSOR: Opens the cursor measurement menu.

• DISPLAY: Opens the display settings menu.

Function Shortcut Keys:

• DEFAULT SETUP: Restores factory default settings.

• HELP: Activates the built-in help system.

• SAVE TO USB: Saves a screenshot to a connected USB drive.

• DECODE: Opens the protocol decoding settings menu.

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

• Horizontal time base: Shows the time represented by each horizontal grid division (e.g., 200us).

• Sampling rate: Displays the current sampling rate (e.g., 1.25MSa/s).

• Storage depth: Displays the number of points being stored for the waveform (e.g., 4KPt).

• Horizontal displacement: Shows the time offset from the trigger point to the center of the screen (e.g., 0.00s).

• Trigger level: Displays the voltage level of the trigger.

• Operation menu: The menu on the right side of the screen, corresponding to the pressed function button.

• USB icon: Appears when a USB drive is connected.

• CH1/CH2 status labels: Located at the bottom of the screen, these show the status for each channel, including coupling (e.g., 1DC), vertical scale (e.g., 1V), and other measurements (e.g., frequency, Vpp).

• Channel labels/waveforms: The colored waveforms on the screen correspond to the colored channel labels.

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

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

2. Press other keys (e.g., [UTILITY], [MEASURE]) to obtain help information for that specific function.

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

• Enable/Disable Channel: Press the channel button ([CH1] or [CH2]) to toggle it on or off.

• Adjust Vertical Scale: Rotate the VOLTS/DIV knob for the selected channel to change the volts per division.

• 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.

• Channel Coupling: Press the channel button to open its menu, then select the coupling menu. You can choose from DC, AC, or Grounded.

• Bandwidth Limit: In the channel menu, select the BW menu to limit the bandwidth (e.g., 20MHz), which helps reduce high-frequency noise.

• Input Impedance: In the channel menu, select the Impedance menu to switch between 1M Ω and 50 Ω.

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

• Waveform Invert: In the channel menu, select the inverting menu to turn inversion on or off.

• Fine Tuning: In the channel menu, select the Fine adjustment menu to make small adjustments to the vertical gear for higher resolution.

• Adjust Horizontal Position: Rotate the horizontal POSITION knob to move the trigger point and waveform left or right.

• Adjust Horizontal Time Base: Rotate the horizontal SEC/DIV knob to change the seconds per division, which expands or compresses the waveform horizontally.

• Delayed Sweep (Zoom): Press the ZOOM button to magnify a segment of the waveform. The screen will split to show both the original and magnified views. Use the horizontal knobs to adjust the zoomed area.

• Horizontal Mode: Press the [HORIZ MENU] button and select a mode:

– YT Mode: The standard voltage vs. time display.

– XY Mode: Displays voltage vs. voltage (CH1 vs. CH2), useful for Lissajous patterns.

– Roll Mode: For slow time bases (100ms/div or slower), the waveform scrolls from right to left.

Press the [Acquire] button and select the Acquire Mode menu to choose from the following:

• Normal Mode: Samples the signal at equal time intervals. This mode provides the best display for most waveforms.

• Average Mode: Averages multiple waveforms to reduce random noise and improve vertical resolution. You can set the number of averages (4, 8, 16, 32, 64, or 128).

• Peak Mode: Captures the maximum and minimum values within each sampling interval. This is useful for finding narrow pulses and avoiding aliasing.

• High Resolution: Averages adjacent points of a single acquired waveform to reduce noise and create a smoother display.

Press the [TRIG MENU] button to access trigger settings:

• Trigger Level: Rotate the TRIGGER LEVEL knob to set the voltage level at which the trigger event occurs.

• Trigger Source: In the menu, select Source and choose from CH1, CH2, External, or Line.

• Trigger Mode: In the menu, select Mode:

– Auto: The oscilloscope acquires waveforms even without a valid trigger.

– Normal: The oscilloscope only updates the waveform when a valid trigger event is detected.

– Single: The oscilloscope acquires one waveform on a valid trigger and then stops.

• Trigger Type: In the menu, select Type to choose from various trigger conditions, such as Edge, Pulse, Video, Slope, Overtime, etc.

• Holdoff: Set a waiting time between triggers to stabilize the display of complex, repetitive waveforms.

Press the [Math] button to open the math operation menu.

For Arithmetic Operations (A+B, A-B, A*B, A/B):

1. Operator: Select the desired arithmetic operation.

2. Source 1, Source 2: Select the channels (CH1, CH2) for the operation.

3. Offset and Scale: Use the multi-functional knob V0 to adjust the vertical offset and scale of the resulting math waveform.

For FFT (Fast Fourier Transform):

1. Operator: Select FFT.

2. Source: Select the channel to analyze.

3. Center and Span: Set the center frequency and frequency span for the spectrum display.

4. Ref Level and Scale: Set the vertical reference level and scale.

5. Vertical Units: Choose between dB or VRms.

6. Window: Select a windowing function (e.g., Hanning, Hamming) to reduce spectral leakage.

The HANTEK DSO2C50 offers up to 32 automatic measurements. To use them:

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

2. Source: Select the channel (CH1 or CH2) you want to measure.

3. Type: Use the multi-functional knob V0 to scroll through and select the measurement item you want to display, such as PkPk (Peak-to-Peak), Frequency, RMS, Rise Time, etc.

To display all available measurements simultaneously, select the All Measure option from the menu.

You can also enable Statistics from the measurement menu to see the current, average, minimum, and maximum values for each active measurement.

Cursors can measure time (X-axis) and voltage (Y-axis) values.

1. Press the [Cursor] button to open the cursor menu.

2. Mode: Select either Manual or Track mode.

3. Source: Select the waveform you want to measure (CH1, CH2, or MATH).

4. In the menu, select the cursor you wish to move (AX, BX for horizontal; AY, BY for vertical).

5. Rotate the multi-functional knob V0 to position the selected cursor on the waveform.

A window on the screen will display the absolute values for each cursor’s position (AX, BX, AY, BY) and the differential values (BX-AX for time, BY-AY for voltage), as well as the frequency corresponding to the time difference (1/dX).

Press the [Display] button to access the display settings menu, where you can adjust the following:

• Type: Choose between Vector (connects sample points with lines) and Point (displays only the individual sample points).

• Intensity: Adjust the brightness of the waveform trace.

• Grid: Change the style of the background grid to Dot, Line, or turn it off (Close).

• Grid Brightness: Adjust the brightness of the grid lines.

• Screen Brightness: Adjust the overall brightness of the LCD screen.

• Persist: Set an afterglow time (e.g., 1s, 5s, infinite). This keeps previous waveforms on the screen for a set duration, which is useful for observing infrequent events or signal jitter.

Follow these steps to upgrade the firmware:

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 V0 knob to select the upgrade file and press V0 to confirm.

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

After the upgrade is completed, the oscilloscope will restart. It is recommended to perform a self-calibration after upgrading.

The self-calibration program optimizes the oscilloscope’s signal path for maximum measurement accuracy. It should be run if the ambient temperature changes by more than 5°C or more.

1. Turn on the oscilloscope and let it preheat for 20 minutes for best results.

2. Disconnect any probes or cables connected to the front panel input connectors.

3. Press the [Utility] button.

4. Select the Calibrate option and press the soft key.

5. A self-calibration dialog box will pop up. Follow the on-screen prompts to perform the self-calibration.

Press the [SAVE/RECALL] button to access the save and recall menu.

To Save to Internal Memory:

1. Type: Select what you want to save (SetUp, Waveform, or Reference).

2. Save To: Select Internal.

3. Location: Use the V0 knob to select a memory location (No.1 to No.9).

4. Save: Press the Save soft key.

To Recall from Internal Memory:

1. Type: Select what you want to recall.

2. Recall From: Select Internal.

3. Location: Use the V0 knob to select the location of the saved file.

4. Recall: Press the Recall soft key.

To Save an Image to a USB Drive:

The easiest method is to press the [SAVE TO USB] shortcut key on the front panel. Alternatively, you can use the SAVE/RECALL menu, select Type as Image, and Save To as External.

Press the [Default Setup] button on the front panel. The oscilloscope will be restored to its default settings for all controls and options, which is useful for returning to a known state.

(Note: This function is available on models with a built-in generator.)

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

2. In the menu, you can set the following parameters:

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

• Frequency: Set the frequency of the waveform.

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

• Offset: Set the DC offset voltage.

• Symmetry/Duty: Set the duty cycle for a square wave or symmetry for a triangular wave.

• Impedance: Select the output impedance as high impedance or 50 Ω.

You can also configure modulation (AM/FM) and burst output from this menu.

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

1. Check if the power cord on the side of the oscilloscope is connected properly.

2. Check if the power switch is pressed.

3. After completing the above checks, try restarting the instrument.

4. If the oscilloscope still cannot be turned on normally, contact your local dealer or Hantek technical support.

1. Check if the oscilloscope probe is properly connected to the BNC channel.

2. Check if the probe is properly connected to the phenomenon being measured.

3. Check if the oscilloscope probe is calibrated properly. If it is not calibrated, follow the relevant instructions in the manual for probe compensation.

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

2. Check if the channel is open (check the CH1/CH2 menu buttons).

3. Check if there is a signal output from the tested signal channel.

4. If it is a DC signal with a relatively large amplitude, increase the amplitude range (adjust VOLTS/DIV).

5. Press the [AUTO SET] button to automatically detect the signal first.

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

1. Check if the USB flash drive is functioning properly 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 format of the USB flash drive is FAT32.

4. Turn the oscilloscope off and on again, then re-insert the USB drive for inspection.

5. If you still cannot use the USB drive, contact Hantek technical support.

1. Check if the triggering data source (in the TRIG MENU) is consistent with the signal input channel.

2. Check if the trigger level is adjusted correctly. You can press the trigger level knob to return the trigger level to the signal’s center point.

3. Check if the triggering method is correct. The default is edge triggering. For different input signals, the triggering method (e.g., Pulse, Video) should be selected correctly.