6
Install battery pack
1. Lift the SCU clip (1) slightly and align the sides of the battery
pack with the grooves of the SCU.
2.
Slide the battery pack into the back of the SCU firmly until you
hear and feel a click.
8.2.3. CHARGING
1. Connect the USB-C
®
connector to the battery socket (1).
2. Connect the other USB-C
®
connector to a USB power source.
3. Battery LED indicator (2) shows status of the battery.
(Functions only when USB-C
®
cable is connected to power.)
Red = Charging
Green = Fully charged
Off = Out of recommended charging temperature
(See section 2.2.)
NOTE
: Only connect to a listed power supply certified according to
IEC/UL/CSA 62368-1 or an equivalent local safety standard. The
power supply shall have a rated output of 5 VDC, 500 mA
(minimum).
1
1
2
9.
DAILY CHECK
9.1. DAILY CHECK ENVIRONMENT
The daily check function should be performed prior to conducting a
fit test to verify that the microphones in the earpieces are in
working order. The daily check must be performed with the headset
connected to the SCU in a suitable sound environment, without
communication eartips attached and while NOT being worn.
A suitable sound environment is defined as an environment where
there is a moderate amount of noise in the vicinity during the daily
check. Examples are: cafeteria or break room where several
people are talking; a single person speaking into the earpieces
from at least one meter (approximately 3 ft) away, music from a
radio, car audio, or loudspeaker; machinery sounds heard from a
safe distance not requiring hearing protection; sound of cars
traveling on a busy street.
Unsuitable environments include: windy environments, quiet
environments, hazardous noise environments where hearing
protection is required; earpieces that are too close to the sound
source.
9.2. DAILY CHECK PROCEDURE
Remove any communication eartips from the earpiece. Attach the
headset to the SCU as described in 10.3. ATTACH THE SCU.
If the SCU is not already powered on, press and hold the Power/
Menu button for 5 seconds to turn the unit on as described in
11.2. POWER ON AND OFF.
Hold the earpieces by the earhooks about 2.5 cm/1 inch away from
the earpieces. Figure A. Make sure that the earpieces are held still.
Alternatively, place the earpieces on a non-movable, flat surface as
shown in Figure B.
Figure A
Figure B
To start the daily check, press and hold the fit test button (2) for
6 seconds or more.
1
2
EN
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