Manual d'usuari del sistema de validació de doble orella 3M EA-Rfit

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The 3M E-A-Rfit Dual-Ear Validation System is designed to quantitatively measure the effectiveness of hearing protection devices for individual workers. This system helps determine whether workers are receiving adequate protection from their hearing protector by measuring across 7 standard frequencies in under five seconds, providing a detailed report on the noise attenuation performance of earplugs or earmuffs and a pass or fail rating for each individual person based on their personal attenuation rating.

Figure 1: The 3M E-A-Rfit Dual-Ear Validation System, showing the laptop interface and the dual-microphone assembly.

Característiques principals:

• Dual-Element, Dual-Microphone Assembly: Measures sound levels both inside and outside the hearing protector simultaneously.
• Science-Based, Quantitative Testing: Provides accurate reports of hearing protection effectiveness.
• Resultats ràpids i precisos: Obtain clear results in seconds, which can be printed or saved electronically.
• Personal Attenuation Rating (PAR): Determines the individual worker's PAR, reducing measurement and fitting uncertainties.
• Dual-Ear Design: Measures both ears concurrently, saving time.
• Interval de freqüència: Tests across 7 standard frequencies (125, 250, 500, 1000, 2000, 4000, 8000 Hz).

Què hi ha a la caixa

The 3M E-A-Rfit Dual-Ear Validation System typically includes the core validation system components necessary for operation. Please refer to your specific product packaging for a complete list of contents.

• 3M E-A-Rfit Dual-Ear Validation System hardware
• Required cables and accessories
• Software installation media or download instructions

Instruccions de configuració

1. Desempaquetar components: Carefully remove all items from the packaging and verify that all components are present.
2. Connectar el maquinari: Connect the dual-microphone assembly to your computer using the provided cables. Ensure all connections are secure.
3. Instal·lar programari: Install the 3M E-A-Rfit software on your computer. Follow the on-screen prompts during installation. Administrator privileges may be required.
4. Calibració del sistema: After software installation, perform any initial system calibration as prompted by the software. This ensures accurate measurements.
5. Posicionament: Place the microphone stand and assembly in a suitable testing environment, ensuring adequate space for the test subject.

Funcionament del sistema

The 3M E-A-Rfit Dual-Ear Validation System is designed for straightforward operation to assess hearing protector effectiveness.

1. Programari de llançament: Open the 3M E-A-Rfit software application on your computer.
2. Preparació del subjecte de la prova: Instruct the individual to properly wear their hearing protection device (earplugs or earmuffs) as they would during typical use.
3. Position Subject: Position the test subject in front of the dual-microphone assembly according to the software's instructions. The system is designed to measure both ears simultaneously.
4. Iniciar la prova: Follow the software prompts to begin the test. The system will emit a series of tones across the 7 standard frequencies (125, 250, 500, 1000, 2000, 4000, 8000 Hz) and measure sound levels.
5. Review Resultats: The software will display the Personal Attenuation Rating (PAR) for each ear, along with a pass or fail indication. Results are typically generated in under five seconds.
6. Save/Print Report: Save the test results electronically or print a detailed report for record-keeping and compliance purposes.

Figure 2: A worker undergoing a hearing protection fit test using the 3M E-A-Rfit Dual-Ear Validation System.

Manteniment

Proper maintenance ensures the longevity and accuracy of your 3M E-A-Rfit Dual-Ear Validation System.

• Neteja: Gently wipe the exterior surfaces of the hardware components with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
• Actualitzacions de programari: Regularly check for and install software updates provided by 3M to ensure optimal performance and access to the latest features.
• Emmagatzematge: Store the system components in a clean, dry environment when not in use to prevent damage.
• Inspecció del cable: Periodically inspect all cables for signs of wear or damage. Replace any damaged cables immediately.

Resolució de problemes

If you encounter issues with your 3M E-A-Rfit Dual-Ear Validation System, consider the following common troubleshooting steps:

• Sense alimentació/connexió: Ensure all power cables are securely connected and the system is receiving power. Verify USB or other data connections between the hardware and computer.
• El programari no s'inicia: Restart your computer. Ensure the software is installed correctly and meets system requirements. Try running the software as an administrator.
• Lectures inexactes: Ensure the testing environment is quiet and free from excessive background noise. Verify that the test subject is properly positioned and wearing their hearing protection correctly. Re-run any calibration procedures if available in the software.
• Missatges d'error: Note any specific error messages displayed by the software and refer to the software's help documentation or 3M support for detailed solutions.

If problems persist, contact 3M technical support for assistance.

Especificacions

Garantia i Suport

Avís legal:

Els productes industrials i laborals de 3M estan destinats, etiquetats i envasats per a la venda a clients industrials i laborals formats per al seu ús en el lloc de treball. A menys que s'indiqui específicament el contrari a l'embalatge o a la documentació del producte aplicable, aquests productes no estan destinats, etiquetats ni envasats per a la venda o l'ús per part dels consumidors (per exemple, per a la llar, personal, escola primària o secundària, recreatiu/esportiu o altres usos no descrits a l'embalatge o a la documentació del producte aplicable), i s'han de seleccionar i utilitzar d'acord amb les normatives i normes de salut i seguretat aplicables (per exemple, US OSHA, ANSI), així com amb tota la documentació del producte, les instruccions per a l'usuari, els avisos i altres limitacions, i l'usuari ha de prendre qualsevol acció requerida en virtut de qualsevol retirada, acció de camp o altre avís d'ús del producte. El mal ús dels productes industrials i laborals de 3M pot provocar lesions, malalties, mort o danys materials. Per obtenir ajuda amb la selecció i l'ús del producte, consulteu el vostre professional de seguretat in situ, higienista industrial o altre expert en la matèria.

Suport tècnic:

Per obtenir informació addicional sobre el producte, assistència tècnica o suport, visiteu el lloc web oficial de 3M. weblloc:

www.3M.com