3M PELTOR WS LiteCom Pro III MT73H7 4D10EU Руководство - Страница 6
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to 82 dBA effective to the ear.
• Although hearing protectors can be recommended for
protection against the harmful effects of impulsive noise, the
Noise Reduction Rating (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
(wording required by EPA).
• In Canada, users of hard hats combined with earmuffs
must refer to CSA Standard Z94.1 on industrial protective
headwear.
• When selecting accessories to respiratory personal protec-
tive equipment, such as hard hat mounted hearing protection,
please consult the NIOSH approval label or consult 3M
Technical Service for approved configurations.
• The attenuation ratings (NRR) were obtained with the
device powered off.
This product contains electrical and electronic
components and must not be disposed of using standard
refuse collection. Please consult local directives for disposal
of electrical and electronic equipment.
1. APPROVALS
3M Svenska AB hereby declares that this 3M™ PELTOR™
Headset is in compliance with the essential requirements and
other provisions set out in the appropriate directives. Thereby
they fulfil the requirements for CE marking.
Hereby, 3M Svenska AB declares that the radio equipment
type two-way radio is in compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at
the following internet address: http://www.3M.com/PELTOR/doc
The product has been tested and approved in accordance
with
EN 352-1:2002 / EN 352-3:2002, EN 352-4:2001/
A1:2005, EN 352-6:2002, EN 352-8:2008.
Additional information can be obtained by contacting 3M in
the country of purchase or 3M Svenska AB Värnamo. For
contact information, see last pages of this user instruction.
Upon request, type in your part number. The part number of
your earmuffs can be found on the label of one cup as seen
in the picture below.
Notified Body Statement of Opinion offered by:
FIOH, Finnish Institute of Occupational Health, Topeliuksen-
katu 41 a A, FI-00250, Helsinki, Finland. Notified body #0403.
2. LABORATORY ATTENUATION
WARNING! 3M strongly recommends individual fit testing of
,
hearing protectors. If the NRR or SNR is used to estimate typical
workplace protection, 3M recommends that the noise reduction
value be reduced by 50% or in accordance with applicable
regulations.
The attenuation rating (SNR/NRR) was obtained with the device
powered off.
Explanation of attenuation tables:
A. EN 352-1/ EN 352-3/ EN 352-4
A:1 Frequency (Hz)
A:2 Mean attenuation (dB)
A:3 Standard deviation (dB)
A:4 Assumed protection value, APV (dB)
A:5
H = Hearing protection estimation for high frequency sounds
(ƒ ≥ 2000Hz).
M = Hearing protection estimation for medium frequency
sounds (500Hz < ƒ < 2000Hz).
L = Hearing protection estimation for low frequency sounds
(ƒ ≤ 500Hz).
A:6 Criterion Level
H = Criterion level for high-frequency noise
M = Criterion level for medium-frequency noise
L = Criterion level for low-frequency noise
*Criterion Levels chart is for level-dependent headsets, EN 352-4:2001/
A1:2005
B. USA Standard ANSI S3.19-1974
B:1 Frequency (Hz)
B:2 Mean Attenuation (dB)
B:3 Standard Deviation (dB)
B:4 Tested with 3M™ PELTOR™ Hard Hat Model H-700
The level of noise entering a person's ear, when hearing
protector is worn as directed, is closely approximated by the
difference between the A-weighted environmental noise level
and the NRR.
Example
1. The environmental noise level as measured at the ear is
92 dBA.
2. The NRR is 25 decibels (dB).
3. The level of noise entering the ear is approximately equal
to 67 dB(A).
CAUTION: For noise environments dominated by frequencies
below 500 Hz the C-weighted environmental noise level
should be used.
C. Compatible Industrial Safety Helmets EN 352-3
These earmuffs should be fitted to, and used only with, the
industrial safety helmets listed in Table C. These earmuffs
were tested in combination with the following industrial safety
helmets, and may give different levels of protection if fitted to
different helmets.
Explanation of the industrial safety helmet attachment table:
C:1 Helmet manufacturer
C:2 Helmet model