3
E:1
E:2
E:3
F:1
F:2
F:3
F:4
F:5
E)
F)
MT20H682FB-*
1
Frequency (Hz)
2
125
250
500
1000
2000
4000
8000
Mean Attenuation (dB)
3
11.5
17.9
27.8
30.0
32.1
36.2
40.3
Standard Deviation (dB)
4
2.5
2.7
1.8
2.3
3.0
2.0
3.1
Assumed Protection Value (dB)
5
9.0
15.3
25.9
27.7
29.1
34.2
37.2
SNR=28 dB H=31 dB M=25 dB L=16 dB
6)
308 g
MT20H682BB-*
1
Frequency (Hz)
2
125
250
500
1000
2000
4000
8000
Mean Attenuation (dB)
3
16.6
16.8
27.4
32.1
33.1
33.0
36.1
Standard Deviation (dB)
4
1.8
2.3
2.2
2.1
3.2
2.9
3.2
Assumed Protection Value (dB)
5
14.8
14.5
25.2
30.0
29.9
30.1
32.9
SNR=28 dB H=31 dB M=25 dB L=18 dB
6)
308 g
G) Attenuation Values
H
112 dB(A)
M
96 dB(A)
L
92 dB(A)
Input (mV)
1
SPL (dB(A))
2
Standard
deviation(dB)
3
167.0
70.1
1.4
284.0
76.1
1.4
481.0
81.2
1.4
776.0
86.0
1.4
1145.0
90.5
1.4
H) External input level
H:1
H:2
I) Criterion levels
The electrical input level for which
the sound pressure level is equal to
82 dB(A) :
459.0 mV
4
The electrical input level for which
the sound pressure level is equal to
82 dB(A) :
94 mV
4
Input (mV)
1
SPL (dB(A))
2
Standard
deviation(dB)
26.0
70.6
1.4
46.0
75.4
1.4
83.0
80.4
1.4
146.0
84.5
1.3
259.0
84.5
1.3
Содержание PELTOR ComTac XPI Series
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