Fcc Compliance Information; Radio Interference - Philips DL7421 Manual

Problem
Pairing /
syncing was
unsuccessful.
A pairing
connection
cannot be set
up.
The device does
not respond or
the display is
dark and the
device seems to
be switched off.
Not all data is
shown in the
app.
My device is not
measuring
correctly. / The
heart rate signal
is not showing

FCC Compliance information

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two
conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any
interference received, including interference that
may cause undesired operation.

Radio interference

This equipment has been tested and found to
comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference in a residential
installation. This equipment generates, uses and
can radiate radio frequency energy and, if not
installed and used in accordance with the
instructions, may cause harmful interference to
radio communications. However, there is no
guarantee that interference will not occur in a
particular installation.
If this equipment does cause harmful interference
to radio or television reception, which can be
determined by turning the equipment off and on,
the user is encouraged to try to correct the
Possible cause and Solution
Bluetooth is switched off,
internet is switched off or the
location based service is
switched off on your
smartphone (location-based
service only for Android).
Activate Bluetooth, internet
and location based services
(Android only) on your
smartphone.
The health band is in sleep
mode, which switches off
Bluetooth. Make sure that the
sleep mode is deactivated on
the health band. Activated
sleep mode deactivates
Bluetooth on the health band.
The device was not within a
range of 2 meters / 6 feet.
Place the health band close to
your smartphone and try again.
Make sure that no other
devices are nearby to avoid
interference.
Battery level of the health
band is too low.
Make sure that the battery of
the device is charged. Place
the device correctly in the
charging cradle during the
pairing process.
The device is not paired.
Make sure that the health band
is paired properly (see
'Preparing for use').
You paired another health
watch or health band before.
Remove the pairing connection
with the other device and set
up a new pairing connection
(see 'Managing your pairing
connection').
A former connection still exists.
You need to set up a new
pairing connection (see
'Managing your pairing
connection').
You did not tap twice correctly
on the blank display.
Tap twice correctly on the
display to activate the display.
The battery is empty.
Put the device in the charging
cradle and connect the
charging cradle to a power
source. Wait until the device is
fully charged.
The device is overheated and
is switched off to cool down.
When the device is cooled
down, it will start to work again.
Place it in the charging cradle
and wait until the charging icon
is shown. This indicates the
device works correctly again.
There is an internal error.
If the device fails to charge or
the device still does not
respond, visit our website
www.philips.com/support for
assistance or call toll free
1-844-531-6861.
The data has not yet been
transferred from the health
band to the app.
Sync the data from the band to
the app.
The device was not synced
before the memory of the
device was full.
Sync the health band regularly
with the app to prevent loss of
data. Only 7 days of data can
be saved on the device.
You are not wearing the device
according the wearing
instructions (see 'Wearing the
health band').
The personal settings in the
app are not correct, leading to
inaccurate measurements.
Always make sure that your
personal settings in the app are
correct.