Peltor MT1H7A2 Gebrauchsanleitung Seite 6

information should be sought from the manufacurer.
• This ear-muff is provided with electrical audio input. The wearer should check
correct operation before use. If distortion or failure is detected, the wearer should
refer to the manufacturers advice.
• When interference increases or the volume becomes too weak, it is time to replace
the batteries. Never replace or install batteries with the unit switched on. Ensure
that the battery is positioned correctly before using. See the figure in the CARE
section.
• Do not store with the batteries installed.
• In extremely cold conditions, warm up the hearing protector before use.
• Ear-muffs, and in particular cushions, may deteriorate with use and should be
examined at frequent intervals for cracking and leakage, for example.
• The fitting of hygiene covers to the cushions may affect the acoustic performance
of the ear-muffs.
Note: If these recommendations are not followed, attenuation and other functions
can be impaired.
WARNING! The output of the level-dependent circuit of this hearing protection may
exceed the external sound level.
Warning! The output of the electrical audio circuit of this hearing protector may exceed
the dalily limit sound level.
IMPORTANT! For the best protection, brush aside hair around the ears so the ear
cushions fit snugly against the head. Spectacle frames should be as thin as possible
and fit close to the head.
TECHNICAL DATA (B)
(B:1) Attenuation values, SNR
The attenuation values and noise levels for the hearing protector have been tested
and approved according to EN 352-4 2001, EN 352-6 2002 and applicable parts of
EN 352-1 2002. Certificate issued by FIOH (Registered Number 0403), Laajaniityntie 1,
FIN-01620 Vantaa, Finland.
1. Frequency
2. Average attenuation
3. Standard deviation
4. Expected attenuation
(B:2) Input signal level/usage time
Maximum permitted audio signal in relation to usage time.
To prevent harmful levels, the input signal must not exceed the stated values (average
speech signal level). The earphone level for long-term average value of music and
speech is measured at max 82 dB (A) equivalent noise level according to the PPE
directive.
1. Hrs/day
2. Average level/electrical signal X= 33mV
(B:3) Sound exposure when using the auxilary input
1. Level under the ear-muff [dB(A)]
2. Input voltage [mVrms]
(B:4) Criterion level
The criterion level is the noise (mesured as A-weighted sound pressure level) outside
the hearing protector that gives 85 dB(A) inside. The outside level depends on the
type of noise: H is high – frequency dominated noise, M is noise that is not dominated
by any given frequency and L is low – frequencydominated noise.
FITTING/ADJUSTMENT (C)
Adjusting the helmet attachment
(C:1) Snap the helmet attachment into the slot on the helmet. To switch the unit from
ventilation to working position, press the headband wires inwards until you hear a
click on both sides. Ensure that the shell and the headband wires in working mode
do not bump or snag on anything so that noise leakage can occur.
Note: The shells can be set in three positions: (C:2) working position, (C:3) ventilation
position and (C:4) parking position.
Adjusting the neckband
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