3M PELTOR WS LiteCom Plus MT73H7A4310WS6EU Manual Del Usuario página 14

EN
4. EXPLANATION OF STANDARD TABLES
The attenuation rating was obtained with the device
powered off.
4.1. EU AND ANZ
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 and
guidance on how to adjust attenuation label value(s). In the
absence of applicable regulations, it is recommended that the
attenuation label value(s) be reduced to better estimate typical
protection.
4.2. EUROPEAN STANDARD EN 352
EN 352-1, EN 352-3 Sound attenuation and sizing
Table
ref.
F:A Headband earmuff with foam cushions
F:B
Neckband earmuff with foam cushions
F:C Headband earmuff with gel cushions
F:D
Neckband earmuff with gel cushions
F:E Carrier attachment earmuff with foam cushions
F:F
Carrier attachment earmuff with gel cushions
F:1 f = Octave-band centre frequency (Hz)
F:2
MV = Mean Value (dB)
F:3 SD = Standard Deviation (dB)
F:4
APV* = MV - SD (dB)
*Assumed Protection Value
F: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).
SNR = Single Number Rating of hearing protector
performance
F:6 S = Small
M = Medium
L = Large
EN 352-4 Level dependent function
Table
ref.
G:A Criterion levels
G:1 H = Criterion level for high-frequency noise
M = Criterion level for medium-frequency noise
L = Criterion level for low-frequency noise
3
Description
Description
EN 352-6 Electrical Safety related audio input
Wired input (cable)
Table
ref.
H:A External wired electrical safety related audio input
H:1
Input signal level U (mV
H:2 Sound output level (dB(A))
H:3
Criterion input signal (mV) for which the sound
output level is equal to 82 dB(A)
H:4
Sound output level for maximum input signal
(dB(A))
H:5 Time equivalent to 82 dB(A) over 8h (hh:mm) for
maximum input signal
Wireless input (Bluetooth and Two-way radio)
®
Table
ref.
H:B External wireless safety related audio input
(Bluetooth )
®
H:B
External wireless safety related audio input
(Two-way radio)
H:11
Input signal (dBFS)
H:12 Sound output level (dB(A))
H:13
Criterion input signal (dBFS) for which the sound
output level is equal to 82 dB(A)
H:14
Sound output level for maximum input signal
(dB(A))
H:15 Time equivalent to 82 dB(A) over 8h (hh:mm) for
maximum input signal
4.3. STANDARD AS/NZS 1270:2002
Table
ref.
J:A
Headband earmuff with foam cushions
J:B Neckband earmuff with foam cushions
J:C
Carrier attachment earmuff with foam cushions
J:1 Frequency (Hz)
J:2
Mean Attenuation (dB)
J:3 Standard Deviation (dB)
J:4
Mean minus SD
J:5 SLC = Sound Level Conversion rating
80
J:6
Class
J:7 Clamping force (N)
Description
)
RMS
Description
Description