Laboratory Attenuation Tables
L
ADVANCE ProCOM Headband Type
Size: S, M, L EN 352-1:2020
(L:1) Frequency (Hz) 63 125 250 500 1000 2000 4000 8000
(L:2) Mean Attenuation (dB) 20.7 20.1 22.1 29.1 37.0 35.6 43.2 42.0
(L:3) Std Deviation (dB) 3.8 3.3 2.8 3.2 2.3 3.6 4.9 5.2
(L:4) Assumed Protection Value (dB) 16.9 16.8 19.3 25.9 34.7 32.0 38.3 36.8
H M L SNR
35 29 23 32
(L:2) Mean Attenuation
(Hm, Mm, Lm, SNRm) (dB) 37.4 31.4 24.9 33.7
(L:3) Std Deviation
(Hs, Ms, Ls, SNRs) (dB) 2.8 2.1 2.3 1.9
ADVANCE ProCOM - Helmet Attached Earmuff
EN 352-3:2020
(L:1) Frequency (Hz) 63 125 250 500 1000 2000 4000 8000
(L:2) Mean Attenuation (dB) 17.7 17.4 21.1 28.0 36.6 37.2 41.7 40.3
(L:3) Std Deviation (dB) 4.0 3.4 1.8 2.5 2.9 2.3 3.2 4.7
(L:4) Assumed Protection Value (dB) 13.7 14.0 19.3 25.5 33.7 34.9 38.5 35.6
H M L SNR
36 29 21 31
(L:2) Mean Attenuation
(Hm, Mm, Lm, SNRm) (dB) 38.1 30.5 23.3 32.9
(L:3) Std Deviation
(Hs, Ms, Ls, SNRs) (dB) 1.9 1.7 2.0 1.6
Criterion Levels
EN 352-4:2020
H 115 dB(A)
M 112 dB(A)
L 97 dB(A)
Criterion Input Signal for Communication Earmuff with Bluetooth
®
EN 352-6:2020
Input Level dB FS -39 -34 -29 -24 -19 -14
(L:2) Mean Attenuation (dB) 61.4 66.3 71.2 76.3 81.2 85.7
(L:3) Std Deviation (dB) 1.7 1.6 1.6 1.6 1.6 1.7
Mean + Std (dB) 63.1 67.9 72.9 77.8 82.7 87.3
Criterion input signal level: -19.7 dB FS
The maximum sound pressure level at -14 dB FS: 87.3 dB(A).
Usage time for the maximum input signal: 2.3 h at -14dB FS
Testing according to EN 352-1:2020, EN 352-3:2020, EN 352-4:2020, EN 352-6:2020, EN 352-8:2020 and annual surveillance carried
out by PZT GmbH, Bismarckstr. 264B, 26389 Wilhelmshaven, Germany (EU Notied Body 1974)
SATRA Technology Centre, Wyndham Way, Telford Way, Kettering, Northamptonshire, NN16 8SD, United Kingdom
(UK Approved Body 0321)
UsersGuide_ADVANCE ProCOM.indb 5UsersGuide_ADVANCE ProCOM.indb 5 2022-10-21 오후 1:15:382022-10-21 오후 1:15:38
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