Fcc And Ic Information - 3M PELTOR CH-3 FLX2 Manual

country of purchase. For contact information, see last pages
of these User Instructions.
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. (Fig. 4:A)

3.1. FCC AND IC INFORMATION

This device complies with Part 15 of the FCC rules and ISED
Canada license-exempt Radio Standards Specifications.
Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation.
CAN ICES-3 (B)/NMB-3(B)
4. LABORATORY ATTENUATION
4.1. NORTH AMERICAN STANDARD ANSI
S3.19-1974
WARNING! U.S. EPA specifies the NRR as the measure of
hearing protector noise reduction. However, 3M makes no
warranties as to the suitability of the NRR for this purpose.
3M strongly recommends personal fit testing of hearing
protectors. Research suggests that users may receive less
noise reduction than indicated by the attenuation label
value(s) on the packaging due to variation in fit, fitting skill,
and motivation of the user. Refer to applicable regulations or
guidance on how to adjust attenuation label values. It is
recommended that the NRR be reduced by 50% to better
estimate typical protection.
4.2. EUROPEAN STANDARD EN 352
WARNING! 3M strongly recommends personal fit testing of
hearing protectors. Research suggests that users may
receive less noise reduction than indicated by the attenuation
label value(s) on the packaging due to variation in fit, fitting
skill, and motivation of the user. Refer to applicable
regulations or guidance on how to adjust attenuation label
values. In the absence of applicable regulations, it is
recommended that the attenuation rating be reduced to better
estimate typical protection.
The attenuation rating (SNR/(EU), NRR(NA)) was obtained
with the device powered off.
4.3. EXPLANATION OF TABLES
4.3.1. LABORATORY ATTENUATION TABLES
European Standard EN 352
A:A
Headband with foam cushion
A:B
Headband with gel cushion
A:C Hard hat attachment with foam cushion
A:D
Hard hat attachment with gel cushion
A:E Neckband with foam cushion
A:1 Frequency (Hz) (ƒ)
A:2
Mean attenuation (dB) (Mf)
A:3 Standard deviation (dB) (sf)
A:4 Assumed protection value, APV (dB)
H = Hearing protection estimation for high frequency
sounds (ƒ ≥ 2000Hz).
M = Hearing protection estimation for medium
A:5
frequency sounds (500Hz < ƒ < 2000Hz).
L = Hearing protection estimation for low frequency
sounds (ƒ ≤ 500Hz).
NA Standard ANSI S3.19-1974
B:A Headband with foam cushion
B:B
Hard hat attachment with foam cushion
B:C Neckband with foam cushion
B:1 Frequency (Hz) (ƒ)
B:2
Mean attenuation (dB) (Mf)
B:3 Standard deviation (dB) (sf)
Improper fit of this device will reduce its effectiveness in
attenuating noise. Consult the enclosed instructions for
proper fit.
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).
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:
• The environmental noise level as measured at the ear is
92 dB(A).
• The NRR is 24 dB.
• The level of noise entering the ear is approximately equal
to 68 dB(A).
ANZ Standards AZ/NZS 1270:2002
C:A
Headband with foam cushion
C:B Hard hat attachment with foam cushion
C:C Neckband with foam cushion
C:1
Frequency (Hz) (ƒ)
C:2 Mean attenuation (dB) (Mf)
C:3 Standard deviation (dB) (sf)
C:4
Mean minus SD (dB)
4.3.2. EXTERNAL AUDIO INPUT LEVELS
Standard EN 352-6
D:1 Input
D:2 SPL
D:3
Standard deviation (dB)
EN
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