ISOtunes IT-30 Manual De Instrucciones página 3

Important
Please read, understand, and follow all safety
information.
Fitting
1. Pull the earcups apart
2. Place the product on your head
3. Adjust the earcup position by extending the
headband to ensure a good fit around the ears
Introduction
Thank you for purchasing ISOtunes® LINK
Professional Noise Isolating Earmuffs. These
earmuffs have been specifically designed for use
in noisy environments – allowing you to block
out much of the surrounding noise so that you
can listen to your music or talk on the phone
with less interruption. This product has been
tested and meets the European Safety Standard
EN352-1:2002, EN352-8:2002 and the ANSI &
NIOSH standards for a hearing protector, with a
Single Number Rating (SNR) of 36 dB with a Noise
Reduction Rating (NRR) of 27 dB. Full testing
details are available in the Noise Attenuation
section of this booklet.
Noise Attenuation
APPROVAL: ISOtunes® LINK is tested and
approved in accordance with ANSI S3.19-1974
Specifications and the European Safety
Standard EN 352-1:2002 and EN352-8:2002.
ANSI
S3.19-1974
The level of noise entering a person's ear, when
ISOtunes® LINK headphones are worn as directed,
is closely approximated by the difference between
the A-weighted environmental noise level and the
Noise Reduction Rating (NRR). Improper fit of this
device will reduce its effectiveness in attenuating
noise. Consult the enclosed instructions for
proper fitting.
A1: Frequency (Hz)
A2: Mean Attenuation (dB)
A3: Standard Deviation (dB)
Example:
1. The surrounding noise level measured at the
ear is 100 dB.
2. The NRR of ISOtunes® LINKis 23 dB.
3. The noise level entering the ear is approximately
equal to 77dB.
Please note that the NRR is based on the
attenuation of continuous noise and may not be
an accurate indicator of the protection attainable
against impulsive noise, such as gunfire.
EN352
The EU declaration of conformity can be accessed
at www.isotunes.co.uk/EU-declaration-of-
conformity.
The products will be certified to the Product
standard EN 352-2:2002 and the PPE Regulation
2016/425.
B1: Frequency (Hz)
B2: Mean Attenuation (dB)
B3: Standard Deviation (dB)
B4: Assumed Protection Value (APV) (dB)
B5:
H = Hearing protection estimation for high
frequency sounds (f ≥ 2000Hz)
M = Hearing protection estimation for medium
frequency sounds (500 Hz < f < 2000Hz)
L = Hearing protection estimation for low
frequency sounds (f ≤ 500Hz)
SafeMax™ Technology
ISOtunes® LINK incorporates SafeMax™
Technology, therefore its volume output has been
limited to 85 decibels (IT-30) and 79 decibels
(IT-31). ISOtunes® devices with SafeMax™
Technology are OSHA, NIOSH, and ANSI compliant
and, when designated, meet the European Safety
Standard EN352.
Cleaning and Maintenance
• Clean your ISOtunes Link by gently wiping
them with a clean, damp cloth with mild
soap.
• Do not immerse the hearing protector
in water.
• Do not use abrasive cleaning solvents to
clean the hearing protector.
If the hearing protector gets wet from sweat or
rain, please discontinue use and turn the earmuff
outwards and allow to dry.
The ear cushions and foam liners should be
regularly inspected for deterioration, cracking, or
other damage.
EN
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