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Idiomas disponibles
Idiomas disponibles
d) Pressure adjustment
5. Size range:
This helmet - ear protector combination is size "Large". Helmet - ear protector
combinations under the EN 352-3 norm are available in the sizes "Medium",
"Small" and "Large". Helmet - ear protector combinations of the size "Medium"
will fit the great majority of users.
"Small" or "Large"-sized helmet - ear protector combinations are intended for
users for whom the "Medium"-sized helmet - ear protector combination is not
suitable.
6. Sound Attenuation Values:
Frequency/Hz
Sound attenuation/dB
63
14,9
125
13,7
250
16,3
500
24,3
1000
30,9
2000
35,7
4000
43,3
8000
51,5
SNR = 27
H = 34
GB
GB
Now turn the pressure regulator with
a 1- or 2-cent coin (10 or 50 centime
CHF) to increase (+) or decrease (-)
the pressure.
Standard deviation/dB
APV-value/dB
3,8
11,1
3,9
9,8
1,4
14,9
3,1
21,2
2,7
28,2
2,7
33,0
4,6
38,7
9,8
41,7
M = 24
L = 17
7. Special Requirement:
This closed ear protector model has met the special requirement of operating at
-20°C.
8. Weight:
220g for 2 ear pieces incl. support brackets.
9. Warning:
This product is designed to reduce the harmful effects of noise. Users must assure
themselves of the suitability of the product for the expected noise exposure. Also
make sure that your hearing protector is fitted, adjusted and regularly serviced in
accordance with the manufacturer's instructions. If these recommendations are
not followed, the protective effect of the hearing protector may be seriously im-
paired, which can lead to life-threatening injuries or harmful consequences. Even
brief non-use of the hearing protector can lead to hearing damage. In the case
of long-term exposure to noise, regular hearing examination is recommended.
Covering the sealing pads with hygienic covers, spectacle earpieces, hats, etc. may
affect the acoustic performance of the hearing protector. No hearing protector can
provide absolute protection against hearing damage. When the hearing protector
is worn, greater attentiveness and caution is required because the perception of
noises heralding danger (screams, signal tones, etc.) is hampered.
Optimal protection can only be achieved if the ear protectors are constantly worn
during exposure to noise and if manufacturer recommendations are followed! A
hearing protector that cannot be adjusted to fit and be tight does not attenuate
the noise as specified and must, therefore, not be used. Please contact your PPI
responsible person or Protos. Only original Protos spare parts are permitted and
standard-compliant.
10. Cleaning:
Regularly clean the outside of the ear protectors with lukewarm soapy water (do
not immerse in water!). This product can be impaired by certain chemical substan-
ces. Improper cleaning and maintenance may impair the protective performance
of the product. For further information, please contact the manufacturer!
11. Maintenance:
A hearing protector that cannot be adjusted to fit and be tight does not attenuate
the noise as specified and must, therefore, not be used. Please contact your
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