MakerHawk LCD Handheld Digital Oscilloscope Kit User Manual

1. Introduktion

Thank you for choosing the MakerHawk LCD Handheld Digital Oscilloscope Kit. This device integrates a 2-channel digital oscilloscope, a true RMS multimeter, and a DDS function signal generator into a compact, portable unit. Designed for electronics enthusiasts, engineers, and technicians, it offers a 120MHz bandwidth and 250MSa/s real-time sampling rate for precise measurements. This manual provides essential information for safe and effective operation, setup, maintenance, and troubleshooting.

2. Sikkerhedsoplysninger

Please read and understand all safety instructions before using the device. Failure to follow these instructions may result in electric shock, fire, or damage to the device.

• Brug ikke enheden i vådt eller damp forhold.
• Ensure proper grounding when connecting to external circuits.
• Overskrid ikke den maksimale indgangsvolumentage ratings specified in the technical specifications.
• Use only the probes and accessories provided or approved by MakerHawk.
• Avoid touching exposed connections or components while the device is powered on.
• Forsøg ikke at åbne eller ændre enheden. Overlad al service til kvalificeret personale.
• Ved måling af høj-voltage or non-isolated circuits, do not use the multimeter while charging (powered by the built-in battery).

3. Pakkens indhold

Bekræft, at alle nedenstående varer er inkluderet i din pakke. Hvis der mangler eller er beskadigede varer, bedes du kontakte kundesupport.

• 1x MakerHawk Digital Oscilloscope (DSO3D12)
• 2x Oscilloscope Probes (1X/10X)
• 2x Multimeter Probes (Red, Black)
• 2x Gray Probe Hooks (including ground alligator clamp)
• 1x Compensating Adjusting Rod
• 2x Insulation Protective Caps
• 8x Identification Rings
• 1x USB Type-C ladekabel
• 1x brugermanual

Figure 3.1: Contents of the MakerHawk Digital Oscilloscope Kit.

4. Produktet er slutview

The MakerHawk DSO3D12 is a versatile 3-in-1 device combining the functionalities of a digital oscilloscope, a multimeter, and a signal generator. Its compact design and robust features make it suitable for various electronic testing and diagnostic tasks.

Figure 4.1: The 3-in-1 functionality of the MakerHawk Digital Oscilloscope.

Nøglefunktioner:

• Professionelt design: 2-channel input oscilloscope with up to 120MHz bandwidth and 250MSa/s real-time samplang hastighed.
• Integrated Signal Generator: Built-in DDS function signal generator capable of outputting sine, square, and triangle waves with adjustable frequency (0-2MHz) and amplitude (2.5V).
• High-Precision Multimeter: Features a true RMS multimeter with fast software calibration, allowing simultaneous use with the oscilloscope for low voltage/resistance/continuity measurements.
• Bærbar og holdbar: Compact design with a 3.2-inch LCD backlight display. Includes a built-in 2500mAh lithium battery for up to 4-6 hours of continuous use and a high-voltage protection module (up to 400V).
• Flexible Trigger Modes: Supports Auto, Normal, and Single trigger modes, with settings for time base, amplitude, and trigger slope. One-touch AUTO function for automatic screen adaptation.

Figure 4.2: Device features including battery, display, and safety.

5. Opsætning

5.1 Opladning af enheden

The device is equipped with a built-in 2500mAh lithium battery. Before first use, fully charge the device using the provided USB Type-C cable and a standard 5V USB power adapter.

• Connect the USB Type-C cable to the device's charging port and the other end to a 5V USB power source.
• The charging indicator light will be red while charging.
• Charging is complete when the indicator light turns green. A full charge typically takes over 4 hours at a charging current of approximately 700mA (3.5W).
• Avoid using the multimeter functions while the device is charging, especially when measuring high-voltage eller ikke-isolerede kredsløb.

5.2 Tilslutning af sonder

Properly connecting the probes is crucial for accurate measurements.

• Oscilloskopprober: Connect the BNC connectors of the oscilloscope probes to the CH1 and CH2 inputs on the top of the device. Ensure a secure connection by twisting the connector clockwise.
• Multimeterprober: Insert the red multimeter probe into the 'VΩ' jack and the black probe into the 'COM' jack for voltage and resistance measurements. For current measurements, use the '10A' or '600mA' jacks as appropriate.
• Probekompensation: For oscilloscope probes, it is recommended to perform probe compensation to ensure accurate waveform display. Connect the probe to a known square wave source (e.g., the device's built-in signal generator or a dedicated probe compensation output) and adjust the trimmer on the probe until the square wave appears flat-topped without overshoot or undershoot.

6. Betjeningsvejledning

6.1 Generel grænseflade

The device features a 3.2-inch LCD display and a combination of soft silicone keys for navigation and function selection. The main screen displays waveform data, measurement parameters, and menu options.

6.2 Oscilloskoptilstand

To enter Oscilloscope mode, ensure the device is powered on. The default display typically shows the waveform. Use the navigation buttons to adjust settings.

Grundlæggende mål

• Vertical Scale (mV/div): Justerer voltage sensitivity. Use the 'CH1' and 'CH2' buttons to select the channel and then the 'mV' or 'V' buttons to change the scale.
• Horizontal Scale (Time Base): Adjusts the time per division. Use the 'Time base' button and navigation keys to change the sweep speed.
• Position: Adjusts the vertical or horizontal position of the waveform on the screen.
• AUTO knap: Pressing the 'AUTO' button automatically adjusts the vertical and horizontal scales and trigger settings to display a stable waveform.
• Målefunktioner: The device supports 14 types of automatic measurement functions, including Frequency, Peak-to-Peak Voltage (PKPK), Mean Voltage (Mean), RMS, Max, Min, Period, Duty Cycle, etc. These are typically displayed on the screen or accessible via a 'Meas' menu.

Trigger-tilstande

The device offers three trigger modes to stabilize repetitive waveforms and capture single-shot events.

• Auto Trigger: The oscilloscope triggers automatically even without a stable signal, ensuring a waveform is always displayed.
• Normal Trigger: The oscilloscope triggers only when the input signal meets the specified trigger conditions (level, slope). If no trigger condition is met, the display remains unchanged.
• Single Trigger: The oscilloscope waits for a single trigger event, captures the waveform, and then stops. This is useful for capturing non-repetitive or transient events.
• Trigger Level and Slope: Adjust the trigger level to specify the voltage point at which the trigger occurs. Select the trigger slope (rising edge or falling edge) to define the direction of the voltage change that initiates the trigger.

XY-tilstand

XY mode displays the voltage of channel 1 (CH1) on the horizontal axis and the voltage of channel 2 (CH2) on the vertical axis. This mode is useful for observing phase relationships between two signals, often resulting in Lissajous figures.

FFT spektrum

The Fast Fourier Transform (FFT) function converts time-domain waveforms into the frequency domain, allowing analysis of the frequency components within a signal. This is useful for identifying harmonics, noise, and signal integrity issues.

Referencebølgeform

This feature allows you to save a waveform and display it as a reference against a live waveform. This is useful for comparing current measurements with a known good signal or for analyzing changes over time.

Figure 6.1: Advanced Oscilloscope Functions.

6.3 Multimetertilstand

The built-in true RMS multimeter supports various measurements. When in oscilloscope mode, a small multimeter window can be displayed in the upper right corner. For full-screen multimeter operation, select the dedicated multimeter mode.

Figure 6.2: High-precision Multimeter Function.

• Voltage Måling: Connect probes to 'VΩ' and 'COM' for DC or AC voltage.
• Modstandsmåling: Connect probes to 'VΩ' and 'COM' for resistance.
• Kontinuitetstest: Connect probes to 'VΩ' and 'COM' for continuity.
• Nuværende måling: Connect the red probe to '10A' or '600mA' and the black probe to 'COM' for current measurements. Ensure the correct jack is used to avoid damaging the device.

6.4 Signalgeneratortilstand

The integrated DDS function signal generator can output various waveforms for testing and calibration purposes.

Figure 6.3: Multiple Waveforms and Signal Generator Interface.

• Bølgeformtyper: Select between sine wave, square wave, and triangle wave outputs.
• Frekvensjustering: Adjust the output frequency from 0 to 2MHz.
• Amplitude: Voltage amplitude is fixed at 2.5V.
• Driftscyklus: For square waves, the duty cycle is adjustable from 1% to 99%.

7. Vedligeholdelse

• Rensning: Brug en blød, tør klud til at rengøre enheden. Brug ikke slibende rengøringsmidler eller opløsningsmidler.
• Opbevaring: Opbevar enheden et køligt, tørt sted væk fra direkte sollys og ekstreme temperaturer.
• Batteripleje: For at forlænge batteriets levetid bør du undgå at aflade batteriet helt ofte. Hvis det opbevares i længere tid, skal du oplade batteriet til cirka 50 % og genoplade det et par gange om måneden.
• Probepleje: Inspect probes regularly for damage. Replace worn or damaged probes immediately to ensure safety and accuracy.

8. Fejlfinding

9. Tekniske specifikationer

The following table outlines the key technical specifications of the MakerHawk DSO3D12.

Figur 9.1: Detaljerede tekniske parametre.

10. Garanti og support

MakerHawk products are designed for reliability and performance. This device comes with a standard manufacturer's warranty against defects in materials and workmanship. For specific warranty details, please refer to the warranty card included with your product or visit the official MakerHawk webwebsted.

For technical support, troubleshooting assistance, or to inquire about replacement parts, please contact MakerHawk customer service through the contact information provided on our website or your purchase platform. Please have your product model number (DSO3D12) and purchase date ready when contacting support.