Adjusting The Volume Level; Power On/Off - 3M MT73H7-4D10EU - 50 Serie Manual De Instrucciones

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4. OPERATING INSTRUCTIONS
4.1 Programming the headset
Your headset comes pre-programmed with a specific configu-
ration. Please contact your certified two-way radio dealer or
3M Technical Service for any questions regarding the headset
configuration, including:
• Radio frequencies/channels
• Voice guide language
• Menu configuration
• Power management settings
• Two-way radio transmission settings
4.2 Charging/Replacing the batteries
WARNING: For intrinsically safe models, only use the 3M™
PELTOR™ Battery ACK082, 3M™ PELTOR™ Charging Cable
AL2AH, and 3M™ PELTOR™ Power Supply FR08 (or equiva-
lent SELV 5V power supply).
For non intrinsically safe models, use only 3M™ PELTOR™
ACK081 charged with cable 3M™ PELTOR™ AL2AI con-
nected to a 3M™ PELTOR™ FR08.
WARNING: The battery may not be charged if the ambient
temperature exceeds 45°C or 113°F.
Never change or charge the ACK082 battery in a potentially
explosive atmosphere.
The battery can be charged in a powered off headset, or
separately.
Insert the rechargeable battery in the battery compartment.
Push down the latch.
The headset will automatically power off 2 hours (default value)
after the last button press or VOX activation.

4.3 Power On/Off

Press and hold the On/Off/Mode button for two seconds until
a voice message is heard to power the headset on or off.
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4.4 Adjusting the volume level

Use the [+] and [–] buttons to adjust the volume. By default,
the [+] and [–] buttons will control the volume of the active
sound source, which could be any one of the following: Two-
way radio, Bluetooth® communication, or Surround sound.
When receiving a two-way radio signal, the [+] and [–] buttons
will control the two-way radio volume. If connected to a Blue-
tooth® device, [+] and [–] buttons will control the Bluetooth®
audio playback. Otherwise, the [+] and [–] buttons will control
surround volume level. The respective volume levels can also
be adjusted in the Menu.
4.5 Menu
To enter the menu, make a short press on the On/Off/Mode
button. Use the On/Off/Mode button to navigate through the
menu and the [+] and [–] buttons to adjust the respective
setting.
These are the options available in the menu:
• Channel
Lists all the programmed channels in the headset, up to 70.
• Radio volume
Adjusts the volume level of the incoming radio sound.
(OFF, 1 – 5)
• Surround volume
The surround, or level-dependent, feature uses external
microphones to sense the surrounding environmental noise
level. At noise levels above 82 dB, the level-dependent tech-
nology will limit environmental sound reproduction within the
headset to a maximum of 82 dB. (OFF, 1 – 5)
• Bluetooth® radio volume
Adjusts the volume level of a Bluetooth® connected communi-
cation radio, 1 – 5.
• Bluetooth® pairing
Press plus button to set the headset in pairing mode. Press
down button to exit pairing mode.
• Battery status
Battery status is measured and the result is played to the user.
Press plus button to repeat the information.
• Language
Adjusts the ghost voice language between all installed lan-
guages.
• Sub channel/Color code (if activated)
Sets the subchannel of an analog channel according to lists (F)
and (G) if it is enabled, 0 – 121. Sets the color code of a digital
channel, 0 – 15.
• Output power (if activated)
The Power feature controls the power level of the radio trans-
mitter. There are three output power levels; low, medium, and
high. The low setting will reduce the communication range but
will increase the battery life.
• Reset
Press plus button for 2 seconds to reset the headset to its
default state.
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