1. Муқаддима
This manual provides detailed instructions for the safe and effective operation of your Mastfuyi Digital Decibel Meter, Model FY8862. Please read this manual thoroughly before using the device and retain it for future reference.
The Mastfuyi FY8862 is a portable, digital sound level meter designed for measuring sound levels in various environments. It features a wide measurement range, high accuracy, and multiple functions including A-weighting, fast/slow response modes, and MAX data hold.
2. Маълумот оид ба бехатарӣ
- Кӯшиш накунед, ки дастгоҳро ҷудо кунед ё тағир диҳед.
- Keep the device away from water, high temperatures, and corrosive substances.
- Боварӣ ҳосил кунед, ки батареяҳо бо қутбҳои дуруст ҷойгир карда шудаанд. Агар дастгоҳ муддати тӯлонӣ истифода нашавад, батареяҳоро хориҷ кунед.
- Дастгоҳро партофтан ё ба таъсири сахт дучор нашавед.
3. Мундариҷаи баста
Ҳангоми кушодани баста, боварӣ ҳосил кунед, ки ҳамаи ҷузъҳо мавҷуданд:
- 1 x Mastfuyi Digital Decibel Meter FY8862
- 2 x Батареяҳои AAA 1.5V
- 1 x Дастури дастурӣ

Image 3.1: Mastfuyi Digital Decibel Meter FY8862 and included AAA batteries.
4. Маҳсулот ба охир расидview ва Хусусиятҳо
The Mastfuyi FY8862 is designed for ease of use and accurate sound measurement. Below are its key components and features:

Image 4.1: Labeled components of the Mastfuyi FY8862 Decibel Meter.
- Wind-resistant Ball: Protects the microphone from wind noise and minor impacts.
- Микрофони конденсатори электретӣ: High-precision microphone for accurate sound capture.
- Sound Level Alarm: Visual indicator (green/red LED) for sound levels.
- Намоиши LCD: Shows decibel readings, mode, and battery status.
- Сарпӯши батарея: Secures the AAA batteries.
- Калиди барқ: Дастгоҳро фаъол ё хомӯш мекунад.
- MAX Locking Key: Holds the maximum measured value.
- SLOW/FAST Select Button: Toggles between fast and slow response modes.
- Клипи ҷайбӣ: Барои интиқоли қулай ва пайвасткунии боэътимод.
- Тарҳрезии лағжиш: Ensures a secure grip.
4.1. Electret Condenser Microphone
The device utilizes a precise electret condenser microphone for accurate sound capture, offering high precision, quick response, and anti-interference capabilities.

Image 4.2: The Electret Condenser Microphone, designed for high precision and quick response.
4.2. Compact and Portable Design
Weighing only 1.76 oz (without battery) and measuring 6.65 inches (169mm) in length, the pen-style design with a pocket clip makes it easy to carry and store securely.

Image 4.3: The compact and lightweight design of the decibel meter, suitable for various carrying methods.
4.3. A-Weighted Measurement
This noise meter incorporates A-weighting, which simulates the frequency response of the human ear at low sound intensities. This provides a more accurate and professional detection of environmental noise, crucial for assessing potential hearing damage and noise pollution.

Image 4.4: A-weighting feature for accurate environmental noise detection.
4.4. Fast and Slow Measurement Modes
The device offers two response rates for diverse measurement needs:
- FAST Mode: Samples the signal 8 times per second, ideal for measuring transient noise or instantaneous changes in sound levels.
- SLOW Mode: Samples 1 time per second, suitable for continuous noise measurements and indicating the average level of fluctuating noise.

Image 4.5: Illustration of Fast and Slow measurement modes.
4.5. MAX Data Hold Function
The MAX lock function continuously records and displays the highest measurement during the sampling period, simplifying data reading and recording.

Image 4.6: The MAX Hold function for capturing peak sound levels.
4.6. Sound Level Alarm
A visual alert system is integrated: the sound level indicator illuminates green when the sound level is below 60 dB and red when it exceeds 60 dB.
4.7. Common Noise Range Reference
Understand typical decibel levels and their potential impact:

Image 4.7: Reference chart for common noise ranges and their effects.
4.8. Аризаи васеъ
The decibel meter is suitable for monitoring noise levels in various environments, including homes, factories, classrooms, offices, home theaters, audio systems, and automobiles.

Тасвири 4.8: Мисamples of the decibel meter's application in various settings.
5. Танзимот
5.1. Насби батарея
The Mastfuyi FY8862 requires two AAA 1.5V batteries. To install or replace batteries:
- Locate the battery cover on the back of the device.
- Use a small Phillips head screwdriver to unscrew the battery cover.
- Insert two AAA 1.5V batteries, ensuring correct polarity as indicated inside the compartment.
- Сарпӯши батареяро иваз кунед ва онро бо винт мустаҳкам кунед.
5.2. Калибрченкунӣ
The device is factory-calibrated. If recalibration is necessary, follow these steps:
- -ро пахш кунед СУСТ/ТЕЗ тугма ва Калиди барқ button simultaneously. Hold the СУСТ/ТЕЗ тугма.
- After the device powers on, briefly press the Калиди барқ button. The screen will display "MAX" to indicate entry into calibration mode.
- Set your standard signal source device to 94dB.
- Align the decibel meter to the standard signal source device. Wait for the meter reading to stabilize at 94dB.
- -ро пахш кунед СУСТ/ТЕЗ button to save the calibration.
- -ро пахш кунед Фаъол/хомӯш button to restart the device. Calibration is now complete.
6. Дастурҳои истифодабарӣ
6.1. Фаъол/хомӯш
Сурхро пахш кунед Калиди барқ тугмаи барои фаъол ё хомӯш кардани дастгоҳ.
6.2. Selecting Measurement Mode (FAST/SLOW)
-ро пахш кунед ТЕЗ/СУСТ button to toggle between Fast and Slow response modes. The selected mode will be indicated on the LCD display.
6.3. Using MAX Data Hold
-ро пахш кунед МАКС button to activate the MAX data hold function. The display will then show the highest decibel reading recorded since the function was activated. Press the МАКС барои баромадан аз ин режим боз тугмаро пахш кунед.
6.4. Interpreting Sound Level Indicators
The device features LED indicators to provide a quick visual reference for sound levels:
- LED сабз: Illuminates when the sound level is below 60 dB.
- LED сурх: Illuminates when the sound level is above 60 dB.
7. Мушаххасоти
| Хусусият | Мушаххасоти |
|---|---|
| Диапазони андозагирӣ | 30 дБ то 130 дБ |
| Дақиқӣ | ±1.5 дБ |
| Диапазони басомад | 31.5 Гц то 8 КГц |
| Вазнбардорӣ | A-вазнкунӣ |
| Вақти ҷавоб | Fast (125ms), Slow (1s) |
| Таъмини нерӯ | 2 x Батареяҳои AAA 1.5V |
| Рақами модели ашё | FY8862 |
| Андозаҳои бастаҳо | 7.17 x 1.54 x 1.34 инч |
| Вазни ашё | 3.17 унция |
8. Нигоҳдорӣ
- Дастгоҳро бо матои хушк ва мулоим тоза кунед. Тозакунанда ё ҳалкунандаҳои абразивиро истифода набаред.
- Ensure the microphone's wind-resistant ball is free from dust and debris for accurate readings.
- Дастгоҳро дар ҷои хунук ва хушк нигоҳ доред, вақте ки истифода намешаванд.
9. Баррасии мушкилот
- Дастгоҳ фаъол нест: Ҷойгиркунии батареяро тафтиш кунед ва боварӣ ҳосил кунед, ки батареяҳо тамом нашудаанд. Агар лозим бошад, иваз кунед.
- Хониши нодуруст: Ensure the microphone is clear of obstructions. Perform calibration if readings are consistently off.
- Масъалаҳои намоиш: Агар экран хира ё милт-милт кунад, батареяҳоро иваз кунед.
10. Кафолат ва дастгирӣ
Mastfuyi provides a 48-month unconditional warranty and lifetime after-sales service for this product. For any questions or support needs, please contact Mastfuyi customer service. We are available 24/7 online to answer your questions as soon as possible.
11. Видеои маҳсулот
Watch the official product video for a visual guide on the Mastfuyi Digital Decibel Meter.
Видео 11.1: Маҳсулоти расмӣ ба охир расидview of the Mastfuyi Digital Decibel Meter, demonstrating its features and ease of use.