EN
3. Insert the rounded eartip into ear canal while pulling the ear
outward away from the head and upward with the opposite
hand.
Note: Make sure to put the earplug marked "R" into your right
ear and the earplug marked "L" into you left ear.
CAUTION: Hearing protection and radio communications
performance of the device depends on insertion of the
earplugs into the correct ear.
4. Rotate the earplug toward the back of the head.
5. Align and position the earplug according to the illustration.
Note: Outbound radio transmissions may be degraded if the
TEP-300 is not worn as shown. Slightly rotating the TEP-300
forward or backward in the ear may strengthen the wireless
connection.
6. With the earplugs powered off, check to ensure you have a
good eartip fit:
a. Gently pull the earplugs outward. They should not come
out of ear easily. If they do, repeat insertion.
7
b. Listen to steady loud noise with earplugs in both ears.
When a proper fit is obtained, environmental noises
should seem substantially quieter.
c. Cover ears with tightly cupped hands. Noise should
sound about the same whether or not ears are covered.
Note: If you cannot obtain a good fit, try a different eartip type
or size.
CAUTION: For greater comfort and safety when removing the
3M UltraFit Communication Eartips, use a slow twisting motion
to gradually break the seal.
8.5. MICROPHONE
The TEP-300 features an in ear speech microphone and thus
eliminates the need for a traditional boom microphone.
Note: Outbound radio transmissions may be degraded if the
selected eartip is not correctly fitted in the ear canal.
9.
INSTRUCTIONS FOR OPERATION
9.1. OPERATING TEMPERATURE
• Earplugs: -4°F/-20°C to 122°F/50°C.
9.2. TO POWER ON/OFF THE PRODUCT
Note: The TEP-300 powers on automatically when removed
from the case. This section applies if TEP-300 has not been
stored in the case or has been powered off for eartip selection
and fitting.
1. Press and hold the power/control button for a minimum of
3 seconds.
Beep Beep
Beeeeep Beeeeep Beeeeep
Note: The earplugs will indicate that product is on/off with a
"triple tone" sequence. A longer tone that repeats three times
indicates that the product is not connected to the SCU-300 yet
or that is has lost connection. Refer to "9.5. To connect
TEP-300 to a paired SCU-300"
Beeping sounds only occurs if the headset has previously been
paired with the SCU-300.
2. Repeat this process for the other earplug.
Note: If a "squealing" tone is heard emitting from the TEP-300,
it is an indication that the earplug is not properly inserted and
that an airtight seal has not been obtained. The product should
not be used in hazardous noise if a proper eartip seal is not
achieved.
ON ~ 3 sec
OFF ~ 3 sec