Idiomas disponibles
Idiomas disponibles
PRODUCT SPECIFICATIONS
Voltage .......................................................................4V DC
*IP Rating: Specifies the environmental protection the product enclosure provides. An IP Rating of 54 denotes protection against harmful
deposits of dust and protection against water sprayed from all directions. The water resistance rating applies only when the battery cap
is installed.
ATTENUATION DATA
Freq. Hz
125
Mean
16.0
Std. Dev.
3.5
The NRR calculated from these laboratory-based attenu-
ation data is 25. Improper fit of this device will reduce its
effectiveness in attenuating noise. Consult instructions for
use for proper fit.
The level of noise entering a person's ears when a hearing
protector is worn as directed is closely approximated by
the difference between the A-weighted environmental noise
level and the NRR.
EXAMPLE:
1. The environmental noise level as measured at the ear is
92 dBA.
2. The NRR is 25 decibels. (dB)
3. The level of noise entering the ear is approximately
equal to 67 dBA.
NOTICE: For noise environments dominated by frequen-
cies below 500 Hz, the C-weighted environmental noise
level should be used.
Earmuffs must be worn at all times in noisy surroundings
for proper protection.
250
500
1000
21.4
25.7
35.7
3.5
2.4
3.7
FEATURES
IP Rating ........................................................................54*
2000
3150
4000
32.0
39.9
3.0
3.0
Although hearing protec-
tors can be recommend-
ed for protection against
the harmful effects of
impulsive noise, the noise
reduction rating (NRR) is
based on the attenuation
of continuous noise and
may not be an accurate
indicator of the protection
attainable against impulsive noise such as gunfire. (Wording
required by EPA)
The EPA has selected the NRR as the measure of a hearing
protector's noise reducing capabilities. Aearo Technologies
makes no warranties as to the suitability of the NRR as a
measure of actual workplace protection since such protec-
tion is highly dependent on user training, motivation, and
utilization. A better estimate of workplace protection can be
obtained by derating the labeled NRR of this, or any other
hearing protector, by 50%.
5— English
6300
8000
40.7
36.0
34.0
3.3
4.4
6.1
ANSI S3.19-1974
NRR CSA Class
25
A
PSL4HP
