Helmet attachment gel cushion
Art nr: MT73H7P3E4310WS6EU, MT73H7P3E4410WS6EU, MT73H7P3E4310EU, MT73H7P3E4410EU
A:1 Frequency (Hz)
125 250 500 1000 2000 4000 8000
A:5
H
A:5
M
A:5
L SNR
A:2 Mean attenuation (dB)
19.0 22.4 29.6 38.1 35.1 39.6 38.2
34
29
21
31
A:3 Standard deviation (dB) 4.7 3.0 3.5 2.5 3.1 4.8 4.4
532
A:4 APV (dB)
14.3 19.4 26.1 35.6 32.0 34.8 33.8
A:6 EN352-4 Criterion levels
H
119 dB(A)
M
112 dB(A)
L
99 dB(A)
EXTERNAL AUDIO INPUT LEVELS EN 352-6
A:7
Cable:
EN352-6 External input level
A:8 RMS
Voltage U (mV)
A:9 Mean Sound
Pressure (dB(A))
A:10 STD Sound
Pressure (dB)
14.9
63
1.1
26.6
67.9
1.1
47.2
72.9
1.1
84.0
77.9
1.1
149.4
82.7
1.1
265.6
86.9
1.0
A:11
Cable:
The electrical input level
for which the sound pressure level is
equal to 82 dB(A): 120.5 mV
B) AZ/NZS 1270:2002
Headband with foam cushion
Art nr: MT73H7A4310WS6AZ, MT73H7A4310AZ
B:1 Frequency (Hz)
125 250 500 1000 2000 4000 8000 SLC
80
Class Clamping
force
Mass
B:2 Mean attenuation (dB)
20.7 23.9 32.0 33.9 36.1 39.6 39.6
32 db
5
B:3 Standard deviation (dB
)
3.5 3.3 4.0 2.2 3.7 2.6 3.3
14.1 N
447 g
B:4 Mean minus SD
17.2 20.6 28.0 31.7 32.4 37.0 36.3
Neckband with foam cushion
Art nr: MT73H7B4310WS6AZ, MT73H7B4310AZ
B:1 Frequency (Hz)
125 250 500 1000 2000 4000 8000 SLC
80
Class Clamping
force
Mass
B:2 Mean attenuation (dB) 16.1 18.6 30.1 36.0 37.4 38.0 37.7
30 dB 5
B:3 Standard deviation (dB
)
3.3 4.0 3.8 3.8 4.2 3.7 4.2
12.6 N
434
B:4 Mean minus SD
12.8 14.6 26.3 32.2 33.2 34.3 33.5
