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3M™ PELTOR™ LiteCom Headset
MT53H7*4400-EU
INTRODUCTION
Congratulations and thank you for choosing
3M™ PELTOR™ communication solutions! Welcome to
the next generation of protective communication.
INTENDED USE
These 3M™ PELTOR™ headsets are intended to provide
workers with protection against hazardous noise levels
while allowing the user to communicate with built-in
two-way radio. It is expected that all users read and
understand the provided user instructions as well as be
familiar with the use of this device.
IMPORTANT
Please read, understand, and follow all safety information
in these instructions prior to use. Retain these instructions
for future reference. For additional information or any
questions, contact 3M Technical Services (contact
information listed on the last page).
!
WARNING
This hearing protector helps reduce exposure to hazardous
noise and other loud sounds. Misuse or failure to wear
hearing protection at all times when exposed to hazardous
noise may result in hearing loss or injury. For proper use,
see supervisor, User Instructions or call 3M Technical
Services. If your hearing seems dulled or you hear a
ringing or buzzing during or after any noise exposure
(including gunfire), or for any other reason you suspect a
hearing problem, leave the noisy environment immediately
and consult a medical professional and/or your supervisor.
Failure to follow these instructions may result in
serious injury or death:
a. Listening to audio communication may reduce your
situational awareness and ability to hear warning signals.
Stay alert and adjust the audio volume to the lowest
acceptable level. The audibility of warning signals at
a specific workplace may be impaired while using the
entertainment facility.
b. To reduce the risks associated with igniting an
explosion, do not use this product in a potentially explosive
atmosphere.
Failure to follow these instructions may reduce the
protection provided by the earmuff and may result in
hearing loss:
a. 3M strongly recommends fit testing of hearing
protectors. Research suggests that many users may
receive less noise reduction than indicated by the
attenuation on the packaging due to variation in fit, fitting
skill, and motivation of the user.
b. Ensure the hearing protector is properly selected, fit,
adjusted, and maintained. Improper fit of this device will
1
reduce its effectiveness in attenuating noise. Consult the
enclosed instructions for proper fit.
c. Inspect the hearing protector before each use. If
damaged, select an undamaged hearing protector or avoid
the noisy environment.
d. When additional personal protective equipment
is necessary (e.g. safety glasses, respirators, etc.),
select flexible, low profile temples or straps to minimize
interference with the earmuff cushion. Remove all other
unnecessary articles (e.g. hair, hats, jewelry, headphones,
hygiene covers, etc.) that could interfere with the seal
of the earmuff cushion and reduce the protection of the
earmuff.
e. Do not bend or reshape the headband or neckband,
and ensure there is adequate force to hold the earmuffs
firmly in place.
f. Earmuffs, and in particular cushions, may deteriorate
with use and should be examined at frequent intervals for
cracking and leakage, for example. When used regularly,
replace the ear cushions and foam liners at least twice
a year to maintain consistent protection, hygiene, and
comfort.
g. If the requirements above are not adhered to, the
protection afforded by the earmuffs will be severely
impaired.
h. The output of the electrical audio circuit of this hearing
protector may exceed the daily limit sound level. Adjust the
audio volume to the lowest acceptable level.
EN 352 Safety Statements:
• 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 information should be sought
from the manufacturer.
• These helmet mounted earmuffs are of 'large size
range'. Helmet mounted earmuffs complying with EN 352-3
are of 'medium size range' or 'small size range' or 'large
size range'. 'Medium size range' helmet mounted earmuffs
will fit the majority of wearers. 'Small size range' or 'large
size range' helmet mounted earmuffs are designed to fit
wearers for whom 'medium size range' helmet mounted
earmuffs are not suitable.
CAUTION
• Risk of explosion if battery is replaced by an incorrect
type.
• Do not charge batteries in temperatures above 45 °C
(113 °F).
• Only use the 3M™ PELTOR™ Power Supply FR08
when recharging the battery.
NOTE
• When worn according to these User Instructions,
this hearing protector helps reduce exposure to both
continuous noises, such as industrial noises and noises
from vehicles and aircraft, as well as very loud impulse
noises, such as gunfire. It is difficult to predict the required
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