Datasheet

Attenuation values
Frequency
(Hz)
63 125 250 500 1000 2000 4000 8000
Mf (dB) 15.9 14.7 20.4 32.3 39.6 36.2 35.4 40.2
sf (dB) 2.1 1.8 2.6 2.5 2.2 2.4 4.2 2.4
APVf (dB) 13.8 12.9 17.8 29.8 37.4 33.8 31.2 37.8
Frequency
(Hz)
63 125 250 500 1000 2000 4000 8000
Mf (dB) 16.1 14.5 20.3 32.6 39.1 35.1 34.7 39.8
sf (dB) 2.0 1.8 2.6 2.4 2.5 2.3 2.7 2.5
APVf (dB) 14.1 12.7 17.7 30.2 36.6 32.8 32.0 37.3
Frequency
(Hz)
63 125 250 500 1000 2000 4000 8000
Mf (dB) 15.1 14.1 19.4 32.0 39.9 36.2 35.4 39.2
sf (dB) 2.1 2.3 2.7 2.7 2.4 2.6 4.4 2.6
APVf (dB) 13.0 11.8 16.7 29.3 37.5 33.6 31.0 36.6
Frequency
(Hz)
63 125 250 500 1000 2000 4000 8000
Mf (dB) 20.8 17.4 24.7 34.7 41.4 39.3 47.5 42.6
sf (dB) 3.1 2.1 2.6 2.0 2.1 1.5 4.5 2.6
APVf (dB) 17.7 15.3 22.1 32.7 39.3 37.8 43.0 40.0
SNR = 31dB H = 34dB M = 29dB L = 20dB
SNR = 31dB H = 34dB M = 28dB L = 20dB
SNR = 30 dB H = 34 dB M = 28 dB L = 19 dB
SNR = 35dB H = 40dB M = 32dB L = 23dB
3M
™
PELTOR
™
Optime
™
II Earmuffs (H520A neckband)
3M
™
PELTOR
™
Optime
™
II Earmuffs (H520F folding headband)
3M
™
PELTOR
™
Optime
™
II Earmuffs (H520P3 helmet mounted)
3M
™
PELTOR
™
Optime
™
III Earmuffs (H540A headband)
Frequency
(Hz)
63 125 250 500 1000 2000 4000 8000
Mf (dB) 16.2 14.6 20.2 32.5 39.3 36.4 34.4 40.2
sf (dB) 1.9 1.6 2.5 2.3 2.1 2.4 4.0 2.3
APVf (dB) 14.3 13.0 17.7 30.2 37.2 34.0 30.4 37.9
SNR = 31dB H = 34dB M = 29dB L = 20dB
3M
™
PELTOR
™
Optime
™
II Earmuffs (H520A headband)
Attenuation values