Mastfuyi FY8825 Nuclear Radiation Detector User Manual

1. Introduction

The Mastfuyi FY8825 is a portable nuclear radiation detector designed for monitoring X-ray, Gamma ray, and Beta ray radiation. Utilizing a Geiger-Miller counting tube, this device offers high sensitivity and real-time detection capabilities, making it suitable for various environments. Its large color LCD display provides clear measurement results, and integrated alarm functions ensure timely alerts for elevated radiation levels.

Image 1: Front view of the Mastfuyi FY8825 Nuclear Radiation Detector, showing its green and black casing and color LCD screen.

2. Safety Information

• Read this manual thoroughly before operating the device.
• Do not attempt to disassemble or modify the device. This may compromise its accuracy and safety features.
• Keep the device away from extreme temperatures, humidity, and strong electromagnetic fields.
• While this device detects radiation, it does not provide protection against radiation exposure. Always follow established safety protocols when working in potentially radioactive environments.
• Dispose of the device and its battery according to local regulations.

3. Package Contents

Verify that all items are present in the package:

• 1 x Mastfuyi FY8825 Nuclear Radiation Detector
• 1 x Carrying Bag
• 1 x Charging Cable (USB Type-C)
• 1 x User Manual (this document)

Image 2: Illustration of the package contents, including the detector and its carrying bag.

4. Product Overview

4.1 Device Components

The Mastfuyi FY8825 features a robust design with a clear color LCD display and intuitive controls.

Image 3: Detailed view of the detector's display and button functions.

• Power Button: Turns the device on/off.
• CLR (Clear) Button: Clears current measurement data.
• APO (Automatic Power Off) Button: Activates/deactivates automatic power off function.
• HOLD Button: Freezes the current reading on the display.
• Mute Button: Toggles sound alerts.
• LCD Display: Shows real-time, average, and maximum radiation values, dosage unit, signal detection, and battery status.

4.2 Display Indicators

The large color LCD provides comprehensive information at a glance:

• REAL: The instantaneous radiation dose rate. This value fluctuates as radiation levels change.
• AVG: The average radiation dose rate over a period. This provides a more stable reading by smoothing out short-term fluctuations.
• MAX: The highest radiation dose rate recorded since the last reset.

The unit of measurement is typically microsieverts per hour (μSv/h).

5. Setup

5.1 Initial Charging

The device comes with a built-in rechargeable battery. Before first use, or if the battery indicator shows low power, charge the device using the provided USB Type-C cable and a compatible power adapter (not included).

1. Connect the USB Type-C cable to the charging port on the device.
2. Connect the other end of the cable to a USB power source (e.g., computer USB port, wall adapter).
3. The battery indicator on the LCD will show charging status. Charge until the indicator shows a full battery.

5.2 Powering On/Off

• To Power On: Press and hold the Power button (ⓘ) for approximately 2 seconds until the display illuminates.
• To Power Off: Press and hold the Power button (ⓘ) for approximately 2 seconds until the display turns off.

6. Operating Instructions

6.1 Radiation Detection

The Mastfuyi FY8825 detects X-rays, Gamma rays, and Beta rays using its internal Geiger-Miller counting tube. The device continuously monitors the environment for radiation and displays the dose rate in real-time.

Image 4: Overview of the detector's features and applications.

6.2 Understanding Readings

The LCD displays three primary values:

• REAL: The instantaneous radiation dose rate. This value fluctuates as radiation levels change.
• AVG: The average radiation dose rate over a period. This provides a more stable reading by smoothing out short-term fluctuations.
• MAX: The highest radiation dose rate recorded since the last reset.

The unit of measurement is typically microsieverts per hour (μSv/h).

6.3 Alarm Functions

The device features real-time alarms to alert users to elevated radiation levels. These alarms can be configured with three modes:

• Sound: An audible alert.
• Vibration: A tactile alert.
• Visual: A flashing color analog bar on the screen.

You can toggle the sound alert using the Mute button. The alarm thresholds can typically be set within the device's settings menu (refer to on-screen prompts or a more detailed digital manual if available for specific threshold adjustment instructions).

Image 5: Visual representation of the three alarm modes.

6.4 Advanced Detection Capabilities

The high sensitivity of the Geiger-Miller tube allows for detection in various scenarios, including:

• Industrial environments
• Medical imaging areas (e.g., X-ray/CT machines)
• Checking materials like marble, ceramic tiles, and certain food items or cosmetics for natural radioactivity.

Image 6: Examples of wide-range detection applications.

7. Maintenance

• Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
• Storage: Store the device in its carrying bag in a cool, dry place when not in use. Avoid direct sunlight.
• Battery Care: For optimal battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in constant use.

8. Troubleshooting

9. Specifications

Image 7: Product dimensions of the detector and its carrying bag.

10. Warranty and Support

Mastfuyi provides a 24-month unconditional warranty for the FY8825 Nuclear Radiation Detector from the date of purchase. Additionally, lifetime after-sales service is available for product support and inquiries.

For warranty claims, technical assistance, or any questions regarding your device, please contact Mastfuyi customer support through the retailer where the product was purchased or refer to the official Mastfuyi website for contact information.