1. Introducere
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. Informații de siguranță
- Nu încercați să dezasamblați sau să modificați dispozitivul.
- Keep the device away from water, high temperatures, and corrosive substances.
- Ensure batteries are inserted with correct polarity. Remove batteries if the device will not be used for an extended period.
- Evitați să scăpați dispozitivul sau să îl supuneți la impacturi puternice.
3. Conținutul pachetului
Verificați dacă toate articolele sunt prezente la deschiderea pachetului:
- 1 x Mastfuyi Digital Decibel Meter FY8862
- 2 x baterii AAA de 1.5 V
- 1 x manual de instrucțiuni

Image 3.1: Mastfuyi Digital Decibel Meter FY8862 and included AAA batteries.
4. Produs terminatview și Caracteristici
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.
- Microfon cu condensator electret: High-precision microphone for accurate sound capture.
- Sound Level Alarm: Visual indicator (green/red LED) for sound levels.
- Display LCD: Shows decibel readings, mode, and battery status.
- Capacul bateriei: Secures the AAA batteries.
- Întrerupător: Pornește sau oprește dispozitivul.
- MAX Locking Key: Holds the maximum measured value.
- SLOW/FAST Select Button: Toggles between fast and slow response modes.
- Clip de buzunar: For convenient carrying and secure attachment.
- Design anti-alunecare: 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. Design compact și portabil
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. Aplicare largă
The decibel meter is suitable for monitoring noise levels in various environments, including homes, factories, classrooms, offices, home theaters, audio systems, and automobiles.

Imaginea 4.8: Examples of the decibel meter's application in various settings.
5. Configurare
5.1. Instalarea bateriei
The Mastfuyi FY8862 requires two AAA 1.5V batteries. To install or replace batteries:
- Localizați capacul bateriei pe spatele dispozitivului.
- 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.
- Puneți la loc capacul bateriei și fixați-l cu șurubul.
5.2. Calibrare
The device is factory-calibrated. If recalibration is necessary, follow these steps:
- Apăsați tasta LENT RAPID butonul și Comutator de alimentare button simultaneously. Hold the LENT RAPID buton.
- After the device powers on, briefly press the Comutator de alimentare 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.
- Apăsați tasta LENT RAPID button to save the calibration.
- Apăsați tasta Pornire/Oprire button to restart the device. Calibration is now complete.
6. Instrucțiuni de utilizare
6.1. Pornire/Oprire
Apăsați pe roșu Comutator de alimentare butonul pentru a porni sau opri dispozitivul.
6.2. Selecting Measurement Mode (FAST/SLOW)
Apăsați tasta REPEDE INCET 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
Apăsați tasta MAX 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 MAX butonul din nou pentru a ieși din acest mod.
6.4. Interpreting Sound Level Indicators
The device features LED indicators to provide a quick visual reference for sound levels:
- LED verde: Illuminates when the sound level is below 60 dB.
- LED roșu: Illuminates when the sound level is above 60 dB.
7. Specificații
| Caracteristică | Caietul de sarcini |
|---|---|
| Interval de măsurare | 30 dB până la 130 dB |
| Precizie | ±1.5 dB |
| Gama de frecvente | 31.5 Hz până la 8 KHz |
| Ponderarea | Ponderarea A |
| Timp de răspuns | Fast (125ms), Slow (1s) |
| Alimentare electrică | 2 x baterii AAA de 1.5 V |
| Numărul de model al articolului | FY8862 |
| Dimensiuni pachet | 7.17 x 1.54 x 1.34 inci |
| Greutatea articolului | 3.17 uncii |
8. Întreținere
- Curățați dispozitivul cu o lavetă moale și uscată. Nu utilizați substanțe de curățare abrazive sau solvenți.
- Ensure the microphone's wind-resistant ball is free from dust and debris for accurate readings.
- Păstrați dispozitivul într-un loc răcoros și uscat atunci când nu este utilizat.
9. Depanare
- Dispozitivul nu pornește: Verificați instalarea bateriilor și asigurați-vă că bateriile nu sunt descărcate. Înlocuiți-le dacă este necesar.
- Citiri inexacte: Ensure the microphone is clear of obstructions. Perform calibration if readings are consistently off.
- Probleme de afișare: Dacă afișajul este întunecat sau pâlpâie, înlocuiți bateriile.
10. Garanție și asistență
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. Videoclipuri cu produse
Watch the official product video for a visual guide on the Mastfuyi Digital Decibel Meter.
Video 11.1: Produsul oficial s-a încheiatview of the Mastfuyi Digital Decibel Meter, demonstrating its features and ease of use.





