Інструкція користувача багатофункціонального планшетного осцилографа FNIRSI DPOS350P 4-в-1

1. Вступ

The FNIRSI DPOS350P is a versatile 4-in-1 instrument designed for comprehensive signal analysis. It integrates a 350MHz dual-channel digital phosphor oscilloscope, a 50MHz full-function signal generator, a 200K~350MHz spectrum analyzer, and a 50MHz frequency response analyzer. This device features a 1GSa/s real-time sampling rate, 350MHz analog bandwidth, and an ultra-high 50,000 wfm/s waveform refresh rate, enabling it to capture and display a wide range of signals clearly, particularly for complex signal analysis and low-probability anomaly detection. Its built-in high-resolution display, touch operation, intelligent triggering, and multiple measurement modes make it a precise and reliable tool for various testing and analysis applications.

Figure 1: FNIRSI DPOS350P 4-in-1 Multi-Function Tablet Oscilloscope

2. Інформація про безпеку

Завжди дотримуйтесь наступних запобіжних заходів під час роботи з пристроєм:

• Переконайтеся, що пристрій використовується в межах зазначеного обсягуtage та обмеження струму.
• Уникайте впливу на пристрій екстремальних температур, вологості або агресивних середовищ.
• Не відкривайте пристрій casing or attempt repairs yourself. Refer to qualified service personnel.
• Use only the provided accessories and probes. Ensure probes are correctly rated for the voltage вимірюється.
• The device features high-voltage input protection up to 400V. However, always exercise caution when working with high voltagес.
• Тримайте пристрій подалі від сильних електромагнітних полів.

3. Вміст упаковки

Перевірте, чи всі перелічені нижче предмети входять до вашої упаковки:

• DPOS350P Oscilloscope Host x 1
• 350MHz Probe x 2
• QC18W Charger x 1
• USB-кабель даних x 1
• Alligator Clip Leads x 1
• Посібник користувача x 1
• Пакувальна коробка х 1

Figure 2: DPOS350P Package Contents

4. Пристрій закінчивсяview

4.1. Фізичні характеристики

The DPOS350P features a rugged anodized aluminum and ABS+PC casing for durability and superior heat dissipation. It is equipped with a 7-inch IPS ultra-responsive touchscreen with a resolution of 1024*600 pixels.

Figure 3: Durable Casing Дизайн

4.2. Порти введення/виведення

The device includes dedicated ports for oscilloscope input and signal generator output:

• CH1 (Oscilloscope Input): Channel 1 input for waveform measurement.
• CH2 (Oscilloscope Input): Channel 2 input for waveform measurement.
• GEN (Signal Generator Output): Output for generating various waveforms.

Figure 4: Dual Channel Input Ports

5. Налаштування

5.1. Початкове заряджання

Before first use, fully charge the device using the provided QC18W charger and USB data cable. The internal 3.7V, 8000mAh lithium battery supports fast charging, reaching full power in approximately 3 hours. A full charge provides about 5 hours of standby time.

Рисунок 5: Інформація про акумулятор та заряджання

5.2. Увімкнення/вимкнення живлення

To power on the device, press the left power button. The device will boot directly into the oscilloscope interface. To power off, press and hold the power button until the shutdown prompt appears, then confirm.

5.3. Підключення зонда

For oscilloscope measurements, connect the probe to either CH1 or CH2 input. Ensure the connection is secure by tightening the probe connector. The black clip on the probe is for ground, and the other lead is the signal probe. For accurate measurements, set the probe attenuation switch to 1X, 10X, or 100X as required, and adjust the corresponding setting on the oscilloscope.

Figure 6: Probe Connection Example (US version shown)

6. Інструкція з експлуатації

6.1. Режим осцилографа

Upon powering on, the device defaults to oscilloscope mode. The 7-inch IPS touchscreen allows for intuitive control.

• Автоналаштування: Tap the "AUTO" button on the screen for automatic signal detection and optimal waveform display. This feature intelligently detects signal characteristics and adapts trigger levels.
• Time Base Adjustment: Adjust the time base to zoom in or out on the waveform. This is useful for detailed analysis of selected waveform sections, especially for digital logic signals.
• Режими тригера: Select from Auto, Single, or Normal trigger modes. Single mode is ideal for capturing transient signals, while Auto mode is suitable for periodic signals.
• Digital Fluorescence Display: Utilize grayscale and color temperature display modes for superior signal clarity and color precision, enhancing the analysis of complex signals.
• Режим XY: Use CH1 (X-axis) and CH2 (Y-axis) to generate closed-loop curves for precise amplitude, frequency, and phase comparisons.
• Long Time Base Flow Mode: Ideal for real-time monitoring of slow voltage changes, such as battery charge/discharge curves.
• Hardware Bandwidth Limiter: Physically limits bandwidth to filter out high-frequency components (above 150MHz/20MHz), reducing noise and harmonics.
• Ultra-Sensitive 2mV/Div: Maintains full 350MHz analog bandwidth at 2mV sensitivity with a sealed shielding design for minimal noise interference.
• Adaptive High-Frequency Suppression: Automatically triggers noise reduction based on waveform frequency characteristics, with adjustable intensity for precise control.

Figure 7: Trigger Functions and Auto Adjustment

Figure 8: Time Base Expansion and Bandwidth Limiter

Figure 9: Low System Noise and Noise Suppression

Figure 10: Advanced Display Modes

6.2. Signal Generator Mode

The built-in signal generator supports 14 standard waveform types and allows for custom waveform generation. Connect the output from the GEN port to your desired circuit.

• Типи хвиль: Select from 14 standard functions or use captured waveforms.
• Регулювання частоти: Adjust frequency from 0 to 50MHz (sine wave only; other waveforms up to 10M/5M/3M).
• Amplitude and Offset: КОНТРОЛЬ amplitude (0-5VPP) and offset (-2.5V to +2.5V).
• Робочий цикл: Adjust duty cycle from 0.1% to 99.9%.
• Custom Waveforms: Store up to 500 custom signals.

Figure 11: Multifunctional Signal Generator Interface

6.3. Spectrum Analyzer Mode

The spectrum analyzer covers a frequency range of 200KHz to 350MHz, ideal for EMI testing, RF signal analysis, and harmonic detection.

• Діапазон частот: Covers 200KHz to 350MHz.
• Відображення водоспаду: Features 3D waterfall display and advanced visualization modes.
• Вимірювання курсору: Perform cursor measurements for frequency, bandwidth, reference level, attenuation, and FFT length.
• Аналіз БПФ: Qualitatively view the spectral components of the current signal.

Figure 12: Advanced Spectrum Analyzer Interface

Figure 13: Cursor Measurement and FFT Analysis

6.4. Frequency Response Analyzer Mode

The built-in 50MHz frequency response analyzer is ideal for amplifier, filter, and power loop response testing.

• Аналіз графіка Боде: Perform Bode Plot analysis with adjustable frequency, excitation ampгеографічна ширина та зміщення.
• Діапазон частот: 100Hz to 50MHz.
• Вимірювання курсору: Measure frequency, gain, and phase.

Figure 14: Built-in Frequency Response Analyzer

6.5. Зберігання та експорт даних

The device is equipped with 1GB storage, capable of saving up to 90 images (screenshots) or 500 waveforms for secondary analysis.

• Зберігання скріншотів: Save up to 90 screenshots of the display.
• Зберігання сигналів: Store up to 500 groups of waveform data.
• Експорт даних USB: Connect the device to a PC via USB to view or copy screenshots and waveform data.
• Оновлення мікропрограми: Supports .iso image updates for firmware upgrades via USB.

Figure 15: Efficient Data Storage and Viewінж

Figure 16: USB Data Export and Software Update

7. Технічне обслуговування

• прибирання: Use a soft, dry cloth to clean the device. For stubborn dirt, a slightly damp Можна використовувати тканину з м’яким миючим засобом, переконавшись, що рідина не потрапила всередину пристрою. Не використовуйте абразивні засоби для чищення або розчинники.
• Догляд за акумулятором: To prolong battery life, avoid fully discharging the battery frequently. If storing the device for an extended period, charge it to about 50-70% and recharge every few months.
• Оновлення мікропрограми: Regularly check the manufacturer's website for available firmware updates. Updates can improve performance, add features, and fix bugs. Follow the provided instructions carefully for firmware upgrades using a .iso image via USB.
• Зберігання: Store the device in a cool, dry place away from direct sunlight and extreme temperatures. Use the provided packing box or a protective case for storage and transport.

8. Вирішення проблем

• Пристрій не включається: Ensure the battery is charged. Connect the charger and try again. If the issue persists, contact support.
• Не відображається хвиля: Check probe connections to CH1/CH2 and ensure they are secure. Verify the probe attenuation setting matches the device setting. Use the "AUTO" function to automatically adjust the display.
• Нестабільна форма хвилі: Adjust the trigger mode (Auto, Single, Normal) and trigger level. Consider using the hardware bandwidth limiter or adaptive high-frequency suppression if noise is present.
• Signal Generator not outputting: Ensure the GEN port is correctly connected and the signal generator function is enabled and configured.
• Сенсорний екран не реагує: Restart the device. If the issue continues, ensure the screen is clean and dry.
• Помилка оновлення мікропрограми: Ensure the .iso file is not corrupted and the USB connection is stable. Follow the update instructions precisely.

9. Технічні характеристики

Рисунок 17: Детальні технічні характеристики

10. Поради користувача

• For quick setup and stable waveform display, always try the "AUTO" function first in oscilloscope mode.
• When analyzing noisy signals, utilize the hardware bandwidth limiter (150M/20M) or adaptive high-frequency suppression to clarify the waveform.
• The 8-16 bit high-resolution mode can reveal finer details in signals, which is crucial for precise analysis.
• Беріть авансtage of the data storage feature to save important waveforms and screenshots for later review or reporting. Export them to a PC via USB for easier management.
• Experiment with the Digital Fluorescence display modes (grayscale and color temperature) to find the best visualization for different signal types.
• The automatic shutdown feature can be configured (15 minutes to 1 hour, or off) to conserve battery life when not in active use.

11. Гарантія та підтримка

For warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or the official FNIRSI webсайт. Зберігайте чек про покупку як підтвердження покупки для гарантійних претензій.