Stihl ADVANCE ProCOM Instructions D'entretien page 7

Laboratory Attenuation Tables
L
ADVANCE ProCOM Headband Type
(L:1) Frequency (Hz)
(L:2) Mean Attenuation (dB)
(L:3) Std Deviation (dB)
(L:4) Assumed Protection Value (dB)
(L:2) Mean Attenuation
(Hm, Mm, Lm, SNRm)
(L:3) Std Deviation
(Hs, Ms, Ls, SNRs)
ADVANCE ProCOM - Helmet Attached Earmuff
(L:1) Frequency (Hz)
(L:2) Mean Attenuation (dB)
(L:3) Std Deviation (dB)
(L:4) Assumed Protection Value (dB)
(L:2) Mean Attenuation
(Hm, Mm, Lm, SNRm)
(L:3) Std Deviation
(Hs, Ms, Ls, SNRs)
Criterion Levels
H
M
L
Criterion Input Signal for Communication Earmuff with Bluetooth
Input Level dB FS
(L:2) Mean Attenuation (dB)
(L:3) Std Deviation (dB)
Mean + Std (dB)
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
63
20.7
3.8
16.9
H
35
(dB) 37.4
(dB)
2.8
63
17.7
4.0
13.7
H
36
(dB) 38.1
(dB)
1.9
EN 352-4:2020
115 dB(A)
112 dB(A)
97 dB(A)
-39
61.4
1.7
63.1
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 Notified Body 1974)
SATRA Technology Centre, Wyndham Way, Telford Way, Kettering, Northamptonshire, NN16 8SD, United Kingdom
(UK Approved Body 0321)
125 250 500
20.1 22.1 29.1
3.3 2.8 3.2
16.8 19.3 25.9
M L SNR
29 23 32
31.4 24.9 33.7
2.1 2.3 1.9
125 250 500
17.4 21.1 28.0
3.4 1.8 2.5
14.0 19.3 25.5
M L SNR
29 21 31
30.5 23.3 32.9
1.7 2.0 1.6
-34 -29 -24
66.3 71.2 76.3
1.6 1.6 1.6
67.9 72.9 77.8
Size: S, M, L
1000 2000 4000
37.0 35.6 43.2
2.3 3.6 4.9
34.7 32.0 38.3
1000 2000 4000
36.6 37.2 41.7
2.9 2.3 3.2
33.7 34.9 38.5
EN 352-6:2020
-19 -14
81.2 85.7
1.6 1.7
82.7 87.3
EN 352-1:2020
8000
42.0
5.2
36.8
EN 352-3:2020
8000
40.3
4.7
35.6