3M PELTOR WS ALERT XP Manual Del Usuario página 11

EN
4. LABORATORY ATTENUATION
The attenuation rating SNR was obtained with the device
powered off.
4.1. EXPLANATION OF ATTENUATION
TABLES
4.1.1. EUROPEAN STANDARD EN 352
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.
EN 352-1, EN 352-3
Table
ref.
A:A Headband with foam cushion
A:B
Neckband with foam cushion
A:C Carrier attachment with foam cushion earmuff
A:1
f = Octave-band centre frequency (Hz)
A:2 MV = Mean value (dB)
A:3
SD = Standard deviation (dB)
A:4 APV* = MV - SD. (dB)
*Assumed protection value
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).
SNR = Single Number Rating of hearing
protector performance
A:6 S = Small
M = Medium
L = Large
EN 352-4 and EN 352-7
Table
ref.
B:A Criterion levels
B:1
H = Criterion level for high-frequency noise
M = Criterion level for medium-frequency
noise
L = Criterion level for low-frequency noise
14
Description
Description
** 3M™ PELTOR™ WS™ ALERT™ XPI Headset
EN 352-6 and EN 352-9
Table
ref.
C:B External wireless safety related audio input
C:11 Input signal (dBFS)
C:12 Sound output level (dB(A))
C:13 Criterion input signal (dBFS) for which the
sound output level is equal to 82 dB(A)
C:14 Sound output level for maximum input signal
(dB(A))
C:15 Time equivalent to 82 dB(A) over 8h
4.2. CARRIER DEVICES
These earmuffs should be fitted to and used only with the
carrier devices listed in Table F. These earmuffs were tested
in combination with the carrier devices listed in Table F, and
may give different levels of protection if fitted to different
carrier devices.
Explanation of the carrier attachment table:
Table
ref.
D:A Compatible carrier devices
D:B
Carrier attachment with foam cushion earmuff
D:C Carrier attachment with gel cushion earmuff
D:1
Manufacturer
D:2 Model
D:3
Attachment code
D:4 Head size: S = small, M = medium, L = large
5. OVERVIEW
5.1. E) COMPONENTS
Article number:
E:1 Headband (PVC, PA)
E:2 Headband wire (stainless steel)
E:3 Two-point fastener (POM)
E:4 Cushion HY82 (PVC foil and PUR foam)
E:4 Cushion HY80 (PUR foil, PUR foam and silicone gel)
E:5 Foam liner (PUR foam)
E:6 Cup (ABS)
E:7 Level-dependent microphone for ambient listening (PUR
foam)
E:8 Speech microphone (ABS, PA)
E:9 Antenna (PE, ABS, TPE)
Description
Description