Important User Information - 3M PELTOR ComTac XPI MT20H682FB Serie Manual Del Usuario

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3:11 External input sensitivity
The external input sensitivity setting adjusts the gain of the
input signal applied on the headset cable input (A:10). There
are three level settings: Off, On, Mix. When set to: Off – no gain
on input signal, On – always gain regardless of Ear-plug mode
setting, Mix – only gain in Ear-plug mode.
3:12 Bone conduction microphone volume
(only specific models)
The bone conduction microphone volume setting only adjusts
the volume from the bone conduction microphone. The volume
setting of the bone conduction microphone allows the adjust-
ment of the volume in 7 levels, "0" is low and "7" is high.
3:13 Warning signals
The warning signal setting disables/enables the warning signals
"low battery" and "automatic power off". When switched off,
none of these warning signals will be heard.
3:14 Automatic power off
The automatic power off setting disables/enables the automatic
power off function.
3:15 Ear-plug mode
The ear-plug mode increases the volumes of ambient sound
and the external input by about 6 dB. It is intended to be used
only when a properly fitted ear-plug is used under the headset.
To turn the ear-plug mode on, press and hold the [+] button for
5 seconds.
Keep the button pressed when the ghost voice says "power
off" and after a few more seconds the message "plug mode" is
heard. The ear-plug mode is turned off by turning the headset
off and back on again.
Warning! Improper use of this function can damage your hearing!
3:16 External input
The standard connector is type J11. Other types of connectors
also exist. The J11 connector is available with different wiring
configurations. For information on wiring on your specific head-
set, please refer to product data sheet or consult your dealer.
3:17 External microphone jack
The external microphone jack can be used for attaching an
external microphone, for example a boom microphone. The
polarity is: top pole is ground (-) and bottom pole is (+). For
models with foldable headband, this jack is placed on the front
side of the left cup whilst on neckband models; it is placed on
the back side of the left cup.

4. IMPORTANT USER INFORMATION

It is recommended that the wearer ensures that:
• The ear-muffs are fitted, adjusted and maintained in
accordance with the manufacturer's instructions.
• The ear-muffs are worn at all times in noisy surroundings.
• The ear-muffs are regularly inspected for serviceability.
Warning!
If the recommendations above are not adhered to, the protection
afforded by the ear-muffs will be severely impaired.
• This product may be adversely affected by certain chemical
substances. Further information should be sought from the
manufacturer.
• Ear-muffs, and in particular ear cushions, may deteriorate
with use and should be examined at frequent intervals for
damage such as cracking and leakage. Replace the ear pads
and cushions at least twice a year, see 5:1.
• The fitting of hygiene covers to the cushions may affect the
acoustic performance of the ear-muffs. Follow the manufac-
turer's recommendation for the appropriate hygiene kit, see 7.
• This ear-muff is provided with level-dependent function.
The wearer should check correct operation before use. If
distortion or failure is detected, the wearer should refer to the
manufacturer´s advice for maintenance and replacement of
the battery.
• 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 manufac-
turer's advice.
• Follow the advice in this manual on maintaining and replacing
batteries.
Warning!
• Performance may deteriorate with battery usage. The typical
period of continuous use that can be expected from the ear-
muff battery is 200 hours.
• The output of the level-dependent circuit of this hearing
protector may exceed the external sound level.
• The output of the electrical audio circuit of this hearing
protector may exceed the daily limit sound level.
5. MAINTENANCE
5:1 Replacing the ear cushions
(E:1) Slide your fingers under the edge of the ear cushion and
pull straight out.
(E:2) Insert the new foam and ear cushion.
(E:3) Press until it snaps into place.
5:2 Cleaning
Remove the ear cushions and attenuation pads (Fig. E) if you
have been wearing the headphones for a long time or if mois-
ture has gathered inside the cups. Clean the cups, headband
and ear cushions regularly with soap and warm water. Make
sure the soap is known not to be harmful to the wearer. Allow
the headphones to dry before you use it again. Alcohol free,
anti-bacteria wipes such as 3M 504 Respirator Cleaning Wipe
can be used to maintain the hygiene of ear cushions, cups and
headband. Do not immerse the hearing protector in water! Do
not clean with solvent-based products such as alcohol and
acetone or with waterless hand cleaners.
5:3 Use and storage
Remove the batteries before storing the product. Do not store
the hearing protector at temperatures above +55°C, (for
example on a dashboard, parcel shelf or window sill), or at
temperatures below –20°C. Do not use the hearing protector at
temperatures above +55°C, or below –20°C.
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