3M Peltor ComTac VII MT14H41A-300NA, User Manual

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7.3. COMMUNICATION MICROPHONE
To maximize the performance of the communication
microphone in noisy areas, position the communication micro-
phone very close to your mouth (< 3 mm / < 1/8 in.).
Note: When used in high altitudes/aviation the surrounding
pressure can be reduced rapidly and affect the communica-
tion microphone sensitivity, for example during helicopter
ascent. If this occurs position the microphone closer and/or
speak louder to increase the pressure on the communication
microphone membrane.
7.3.1. TO ADJUST THE MICROPHONE
1. Fold the microphone towards the corner of your mouth.
2. Release the adjustable screw.
3. Set the distance of the microphone, < 3 mm / < 1/8 in.
<3 mm
4. Tighten the adjustable screw.
7.4. TO INSTALL THE PROTECTIVE TAPE
Note: For best performance, replace the protective tape
when damaged, dirty or deformed.
1. Cut approximately 10 cm/4 in. of the protective tape.
Refer to “14. Accessories”.
2. Remove the backing from the protective tape.
3. Wrap the protective tape around the microphone.
4. Apply pressure to the protective tape.
8. INSTRUCTIONS FOR OPERATION
8.1. OPERATING TEMPERATURE
-20°C/-4°F to 50°C/122°F.
8.2. TO REPLACE THE BATTERIES
The ComTac™ VII headset requires 2 AAA batteries to
operate.
Note: The headset will indicate low battery level with an
audio message “Low battery”.
1. Lift the inner side of the battery cover.
2. Push the battery cover outwards.
3. Insert the batteries into the battery compartment
according to the illustration.
AAA
4. Close the battery cover.
5. Push the battery cover towards the earcup.
Click!
8.3. TO POWER ON/OFF THE HEADSET
1. Press and hold the + button for minimum of 3 seconds.
ON ~ 3 sec
OFF ~ 3 sec
The headset will indicate power mode with appropriate
audio message of “Power on” or Power off”.
Note: A beeping sound indicates the headset is not
connected to the SCU-300. Refer to section “8.4. To connect
the headset to a paired SCU-300”.
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