KASK SC1 Gebrauchsanweisung Seite 5

GB US CA
User instruction
All hearing protectors, which are included in this
instruction sheet, are equipped with thermoplas-
tic headband or spring-arms, or stainless steel
neckband and foam-plastic filled cushions.
Use
To attain highest comfort and protection from
your hearing protector you shall use, take care
of and adjust the protector in accordance with the
instructions below.
• The fitting of hygiene covers to the cushions
may affect the acoustic performance of the
earmuffs.
• This product may be adversely affected by
certain chemical substances. Further informa-
tion should be sought from the manufacturer.
Fitting and adjustment
Noise reduction will be adversely affected by an-
ything that impairs the seal of the earmuff cush-
ions against the head, such as thick spectacle
frames, balaclavas, etc. Remove all hair under
the cushion and fit the ear cups over your ears so
that they sit comfortably and snugly. Ensure that
your ears are totally enclosed by the cups and
that you get an even pressure around your ears.
Cap/Helmet mounted (pic. B)
Push the helmet mount into the helmet's slot
attachment until it snaps into place.Place the
earmuffs over the ears and press inwards until
you hear a click. Adjust the ear muffs so that the
helmet fits comfortably on your head.
Care
Clean with mild detergent (soap). You must be
sure that the detergent does not irritate your skin.
The hearing protector should be kept in a dry and
clean place, for example in the original packing.
Change of hygiene kit. (pic. C)
1. Remove the old sound absorber foam and
insert the new.
2. Pull off the old ear cushion.
3. Center the new ear cushion over the hole.
4. Press with a finger along the outside of the
ear cushion until it attaches all around the
edges.
Important!
Ear muffs, and in particular cushions, may dete-
riorate with use and should be examined at
frequent intervals for cracking and leakage.
Hygiene kit should be changed at least twice per
year. Make sure you choose the correct hygiene
kit for your hearing protector.
SC1 & SC2 WAC00006.000
SC3 WAC00007.000
Warning
If the instructions are not observed attenuation
can dramatically decrease. The earmuffs should
be worn at all time in noisy surroundings!
Information Required By E.P.A. (US)
The level of noise entering a person's ear, when
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 dB.
Caution
For noise environments dominated by
frequencies below 500 Hz the C-weighted
environmental noise level should be used.
Warning
Improper fit of this device will reduce its
effectiveness in attenuating noise. Although
hearing protectors can be recommended
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 accurate indicator of the
protection attainable against impulsive noise
such as gunfire.