Important User Information; Technical Data - Peltor Twin Cup MT7 H540 Serie Manual Del Usuario

EN
Peltor Twin Cup™ Headset
MT7*H540*
The Peltor Twin Cup Headset (hearing protector with
electronic sound input) for use in extremely noisy
environments. The twin-cup design gives extra good
attenuation, even of low-frequency noise.
Read these instructions carefully to ensure the best
possible benefit from your Peltor product.
Standard models: The MT7*H540A and MT7*H540P3E
with microphone connected through a separate connector.
A) PROPERTIES
1a. Extra broad headband (MT7*H540A) with soft padding
for ideal comfort throughout the working day.
1b Helmet attachment (MT7*H540P3*) for the most
common types of helmets. All Peltor helmets, visors
and rain protectors fit this helmet attachment.
2. Individually sprung headband wires of stainless
steel provide an even distribution of pressure around
the ears. Steel headband wires maintain their resilience
better than regular plastic headbands through a wide
range of temperatures.
3. Low, two-point fasteners and easy height adjustment
with no protruding parts.
4. Soft, wide foam and fluid-filled ear cushions with
built-in pressure-relief channels for low pressure,
effective sealing and ideal comfort.
5. Twin cups minimise resonance frequencies in the
system, providing more even attenuation over the entire
frequency range.
6. Equipment cord with flexible polyurethane insulation
and moulded connector.
7. Earphones that provide excellent sound reproduction
even in noisy environments.
8. Dynamic microphone
suppression.

IMPORTANT USER INFORMATION

The headset must be used and maintained according to
these instructions.
• The Peltor Twin Cup Headset is a CE-approved hearing
protector.
Wear it 100% of your time in a noisy environment! Use
of a working hearing protector is the only sure protection
from hearing loss.
• Always check the function of the headset before use.
• For maximum noise compensation, the microphone must
be placed 3 mm in front of the corner of your mouth. See
fig. B:2.
• Do not store the headset at temperatures in excess of
+55 °C, for example on a dashboard or windowsill!
• During long hours of use, the attenuating foam in the
cups can become damp, which may cause damage to
the circuits. Make sure to remove the hygiene kit and
let the foam dry by placing the headset in a position that
allows ventilation.
• Clean the outside of the headset regularly with soap and
warm water. Note: Do not immerse in water!
• Even high-quality headsets can wear out over time.
Inspect the headset regularly to make sure there are
no cracks or leakage, which will reduce the hearing
protection. If the headset is used continuously, check
the ear cushions often.
with extreme noise
• Certain chemical substances may be harmful to this
product. Contact Peltor for more information.
CONFIGURATION/ASSEMBLY
Headbands A and F (MT7*H540A and MT7*H540F)
(B:1) Slide out the cups. Place the headset over your ears
so that the ear cushions fit snugly.
(B:2) Adjust the cups to a snug, comfortable fit
by pulling the cup up or down while holding the headband
down.
(B:3) The headband should lie across the top of the head.
Helmet attachment (MT7*H540P3E and MT7*H540P3K)
Peltor hearing protectors and headsets are suited to most
of the helmets on the market. (See the complete list on our
website, www.peltor.com)
The protector can be adapted to the specific helmet with a
simple manoeuvre. The P3E snap-on attachment is usually
standard at delivery, but can be replaced with the Z3K,
which is included in the package.
(C:1) Snap the helmet attachments into the slots on the
helmet.
(C:2) Place the cups in working position by pressing the
headband wires inwards until you hear a click on both
sides. Ensure that neither the shell nor the headband wires
press against the lining or edge of the helmet so that noise
leakage can occur.
(C:3) Ventilation mode.
(C:4) NOTE: Do not attach the shells to the helmet if they
are damp inside after intense use!

TECHNICAL DATA

MT70 MICROPHONE
Type: Dynamic differential microphone
Frequency range: 70–9 000 Hz ±6 dB
Sensitivity as a lip microphone: 4 mV / 220 Ω
Impedance: 230 Ω
Noise suppression: 12 dB at 1 kHz
HTS EARPHONES
Connection impedance: 115 Ω (2 x 230 Ω parallel)
Frequency range: 125–8 000 Hz ±6 dB
EQUIPMENT CORD
Length: 0.5–1.4 m, spiral polyurethane
Connector: Peltor J11 (Nexus TP-120 type)
WEIGHT
MT72H540F 438 g., MT7H540F 443 g.
MT72H540P3E 448 g., MT7H540P3E 453 g.
OPERATING TEMPERATURE
–30 to +55 degrees Celsius
USAGE TIME/INPUT SIGNAL
Warning: The sound level from the earphones in this
hearing protector can lead to a daily exposure that exceeds
the permitted levels. The audio signal in the earphones
must therefore be adapted to the usage time. To prevent
harmful levels, the input signal should not exceed 323 mV.
At a higher input voltage, the usage time must be decreased
according to diagram D:1 (x = 323 mV). An electrical input
signal level of 323 mV corresponds to 82 dB (A) equivalent
sound level (average value plus one standard deviation of
the measured sound level. See table D:2).
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