Model
Helmet attachment type
number
Approved dimensions
Husqvarna Forest helmet Classic, JSPMK2 EVO
18
L
These ear-muffs are of ‘small size
range’ or ‘large size range’ (as appro-
priate). Ear muffs complying with EN
352-3 are of ‘medium size range’ or
‘small size range’ or ‘large size ran-
ge’. ‘Medium size range’ ear-muffs
will fit the majority of wearers. ‘Small
size range’ or ‘large size range’ ear-
muffs are designed to fit wearers for
whom ‘medium size range’ ear-muffs
are not suitable.
Technical data
Sound level
The FM radio mode and Headset mode have a
maximum equivalent sound level of 82 dB (A).
Technical data
HP310-1
HP310-2
Weight, g
411
404
Frequency spectrum for Bluetooth
®
2.402 GHz to 2.480 GHz
2.402 GHz to 2.480 GHz
Bluetooth
®
output power
2 dBm typical
2 dBm typical
HP310-1
Attenuation tested according to ANSI S3.19-1974
Frequen-
zy (Hz)
125
250
500
1000
2000
3150
4000
6300
8000
Mean at-
tenuation
dB(A)
18.1
17.5
25.2
29.2
34.3
39.4
40.8
41.6
40.7
Standard
deviation
dB(A)
2.9
2.3
2.8
2.9
3.2
2.6
3.1
3.3
2.9
NRR, dB 22
Head-
band
force, lbs
2.5
226
579 - 005 - 05.07.2019
Содержание HP310-1
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