3M PELTOR ComTac VIII Headset Manual Del Usuario página 8

4.2. EUROPEAN STANDARD EN 352
EN 352-1 Sound attenuation and sizing
Table
ref.
A:A Headband earmuffs with foam cushions
A:B
Headband earmuffs with gel cushions
A:C Dual protection mode, ComTac™ VIII
Headset with E-A-R™ Classic Earplugs
A:D
Dual protection mode, ComTac™ VIII
Headset with TEP-300 EU with Torque™ or
CCC-GRM-25 Communication Eartips
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 Level dependent function
Table
ref.
B:A Criterion levels
B:B Criterion levels - Dual protection mode
B:1 H = Criterion level for high-frequency noise
M = Criterion level for medium-frequency
noise
L = Criterion level for low-frequency noise
EN 352-6 Electrical Safety related audio input
Table
ref.
C:A External electrical safety related audio input
C:A1
Cable
C:1 Default mode
C:2
Dual protection mode
C:3 Input voltage (mVrms) Fail Safe
Description
Description
Description
Table
ref.
C:4 Input voltage (mVrms) Low
C:5
Input voltage (mVrms) High
C:6 Sound output level (dB(A))
C:7
Criterion input voltage (mVrms) for which the
sound output level is equal to 82 dB(A)
C:8 Sound output level for maximum input signal
(dB(A))
C:9 Time equivalent to 82 dB(A) over 8h
5. COMPONENTS
(Figure D)
D:1 Headband (SEBS)
D:2 Headband cable (PUR)
D:3 Ear cushion (PVC)
D:4 Foam liner (PE)
D:5 Headband wire (Stainless steel)
D:6 Guide (POM / SEBS)
D:7 Communication microphone connector (Nickel plated
brass)
D:8 Communication microphone (TPE, PC)
D:9 Communication microphone arm (Brass / Powder paint)
D:10 Adjustable screw (PA)
D:11 Environmental/Ambient microphone (PET)
D:12 + button (Silicone)
D:13 External input cable (PUR) (only specific models)
D:14 - button (Silicone)
D:15 Earcup (ABS)
D:16 Battery compartment cover (POM)
D:17 Guide for the headband cable
D:18 Communication microphone guide
6. SETUP
6.1. GENERAL
The following points cover the main actions to make the
product ready for operation.
6.2. REPLACE THE BATTERIES
The ComTac™ VIII Headset requires 2 AAA batteries to
operate.
NOTE: The headset will indicate low battery level with an
audio message "Low battery".
1. Lift the inner side of the battery cover.
2. Push the battery cover outwards.
EN
Description
3