3M E-A-Rfit Bedienungsanleitung

User Instructions

3M™ E-A-Rfit™ Dual-Ear Validation System User Instruction

3M™ E-A-Rfit™ Dual-Ear Validation System User Instructions

Warnings and Cautions

WARNING

To avoid the risk of electric shock, which if not avoided could result in serious injury or death:

WARNING

• Do not immerse the 3M™ E-A-Rfit™ Dual-Ear Validation System in any liquid.

• Use indoors only.

• Disconnect power cord before cleaning.

• Clean the exterior surface of the speaker with a clean anti-static cloth.

• Do not attempt to clean the interior components.

• There are no serviceable parts.

• The 3M™ E-A-Rfit™ Dual-Ear Validation System must be returned to the manufacturer for repair.

• To avoid possible environmental contamination, dispose of the 3M™ E-A-Rfit™ Dual-Ear Validation System according

to applicable governmental regulations.

• Substitution of components may impair the accuracy of the instrument. Repairs should be performed by authorized

service personnel only.

• Read the User Guide before operation.

Introduction

This system is comprised of hardware and software that enables the operator to test and record the personal attenuation

rating (PAR) of many 3M hearing protection products. (See Appendix B, “Model, Parts and Accessories” for details.) Software

versions 5.9.1 and higher are compliant with ANSI/ASA S12.71-2018 American National Standard Performance Criteria for

Systems that Estimate the Attenuation of Passive Hearing Protectors for Individual Users.

Getting Started

This product contains the components illustrated below. Please follow the illustrated quick set-up guide in the lid of the case

to assemble your hardware.

Table of Contents

Installing the Software 2

Hardware Setup: Speaker and Cable Connection 2

Software Start-up 4

Home Screen 5

Microphone Verification 7

Test Overview 7

How it Works 8

Test Procedure 8

Test Results 10

Visual Status Indicators 10

Action Button Key 11

Quick View 12

Safety Guide 13

Fitting Gauge 13

Attenuation Graph 14

Detail View 14

Reports 15

Employee Report 15

Company Report 16

Data Manager 17

Company 17

Adding or Editing a Company 18

Delete a Company 19

Employee 19

Add or Edit an Employee 20

Importing Employee Data 21

Operator 22

Add an Operator 22

Edit an Operator 23

Export 23

Octave Band Data 23

Employees Due for Testing 24

Employee Session Duration 25

Export Data 26

Hearing Protector Assignment 27

Import E-A-Rfit 4 Data 28

Settings 29

Database 29

Service URL 29

Software Updates 29

User Support 30

Resources 31

Request Technical Assistance 32

Check for Updates 32

Appendix A 33

Standards/Directives 33

References 33

United States Patents 33

Measurements Computed 34

Mechanical Specifications 34

Power Supply and Operating Conditions 34

Environmental Operating Conditions 34

User Interface Requirements 34

System Requirements 35

Performance Statement 35

Appendix B 36

Kit Components 36

Probed Test Hearing Protector Accessories 36

Contact 3M 36

Within the United States 36

Outside the United States 37

Legal and Regulatory Information 37

FCC/IC 37

Calibration 38

Warranty 38

Responsibility for Data Privacy and Security 38

Limitation of Liability 38

Installing the Software

1) Insert the provided flash drive into your computer or download the latest version from the 3M website by visiting

EARfit.3M.com.

2) Navigate to the software folder in your File Explorer window.

3) Run the Setup.exe file.

4) Follow the prompts in the application setup wizard.

Hardware Setup: Speaker Stand and Cable Connection

1) After removing the items from the case, lay the speaker down on a table and screw the stand post into the bottom of

the speaker.

2) Attach the stand base to the stand post by screwing it in clockwise.

3) Set the unit on a table upright

4) Plug the power cord into the top socket on the back of the unit.

5) Plug the power adapter into a wall out. A green light will illuminate on the unit.

6) Insert the microphone assembly into the middle socket on the back of the unit. Take care to ensure the plug is properly

aligned into the socket.

7) Hang both microphones by the integrated clips to the clip on the front of the unit.

8) Attach the USB cord to the bottom socket on the back of the unit.

9) Insert the free end of the USB cord into a USB port on your computer.

IMPORTANT NOTE

A device driver message may appear on your computer task bar. That is okay.

A red light will flash once the speaker has successfully connected.

Software Start-up

The start-up process includes the selection of the language, operator, and company. It may also be used to begin testing,

review hearing protection fit-tests, and access the data manager (see following sections for details).

IMPORTANT NOTE

Clicking the Home icon or the E-A-Rfit™ logo will return you to the home screen.

Home Screen

1) Open the 3M™ E-A-Rfit™ Dual-Ear Validation System software.

2) Select your language by clicking on the drop-down language menu.

3) Select the Operator, which is the person conducting the test.

To add an Operator:

a) Click the Add button next to the Operator field.

b) Fill out the dialogue box that appears.

To edit an Operator:

a) Click the Edit button next to the Operator field.

b) Edit the dialogue box as needed.

4) Select your company. For more information on adding or editing a company, see .

5) Click on Begin Testing to start the testing process.

IMPORTANT NOTE

See the and sections for information on these functions.

Microphone Verification

Microphone verification is necessary to assure the microphones and speaker are operating properly. A microphone

verification is required each time the software is started. Re-verification is required after four (4) hours of use or after fifty (50)

fit-test sessions, whichever comes first.

1) Slide the right (red) and left (blue) microphones into the speaker clips as illustrated on the software screen.

2) Click the Start Verification button.

– If the microphones are functioning correctly, a green check mark will appear. Click Continue to Testing to

proceed.

– If verification does not pass, a red X will appear. Disconnect and reconnect the microphones and press Try Again.

Test Overview

How it Works

The 3M™ E-A-Rfit™ Dual-Ear Validation System encompasses a specially designed loudspeaker that allows for an accurate

presentation of the test signal and real-time communication between the microphones, speaker and software. The

dual-element microphones make it possible to measure the sound level simultaneously inside and outside the hearing

protector.

The reference microphone measures the level of the test signal outside the ear. The measurement microphone is connected

to one of the specially modified 3M probed test earplugs or earmuff cushions to allow measurement of the sound level inside

the wearer’s ear canal while the hearing protector is worn. The difference between the outside and inside microphone levels

is used to calculate the personal attenuation rating (PAR) for each employee: the amount of noise reduction in decibels

obtained by that individual with the specific model and size of hearing protector being worn. The PAR is an indication as to

whether or not the standard version of that model of hearing protector, without the test probe attached, will provide sufficient

attenuation for the noise exposure in the workplace.

The 3M™ probed test earplugs and earmuff cushions are designed to be equivalent to the performance of the actual hearing

protectors they represent. Attenuation differences between the probed and the non-probed products are accounted for in

the PAR calculation by applying compensation factors which are derived from laboratory studies.

IMPORTANT NOTE

The use of fit testing cannot be assumed to meet all regulatory requirements. Follow all applicable regulations for determining

hearing protector noise attenuation.

Test Procedure

1) Welcome the employee (test subject) to sit in a chair in front of the speaker. Explain the fit test process and select the

appropriate model of probed test plugs or probed test earmuff cushions.

2) In the software, select the employee. You may type the employee name or select by using the drop-down menu. For

information on adding an employee, see Add or Edit an Employee.

3) Click Select Product or Change Product to add or change a product for the employee being tested.

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