Philips DL8765 Manual page 5

Sym Description
bol
Diastolic
blood pres­
sure
Heart rate
Battery sta­
tus
Measure­
ment unit
Inflation
indicator
Deflation
indicator
Irregular
heart rate
detector
User IDs
Movement
detector
Blood pres­
sure classifi­
cation
Bluetooth®
Smart sym­
bol
Heart rate
detection
Battery status indications
Battery
symbol
+
When you measure 3 times a day starting with a
fully charged battery, the device can be used for
about 20 days until a recharge is needed. In case
of normal use, the battery can be charged around
300 times.
Note: Data will be lost when the battery is com­
pletely empty.
Charging
The battery of this device is a built-in rechargeable
li-polymer battery with a capacity of 420 mAh.
Use the original USB cable supplied to charge the
battery.
When the battery is empty, it takes approx. 2 hours
to fully charge the battery of the device.
1 Put the micro USB plug in the socket of the
device (Fig. 2).
2 Put the USB cable in a USB port of a compatible
charger.
Battery charging indications
Battery Battery charging indication
symbol
Battery charging: half full
Battery charging: almost full
Battery fully charged
Using the blood pressure
monitor
This tubeless device uses the oscillometric method
to measure blood pressure and heart rate.
Before every measurement, the unit establishes a
"zero point" equivalent to the atmospheric pres­
sure. Then it starts inflating the cuff. During the
measurement, the device detects the pressure
oscillations in the blood vessels generated by the
heart pumping blood through the body. These
pressure oscillations are used to determine systolic
and diastolic blood pressure as well as heart rate.
While measuring heart rate, the device also deter­
mines the small variations between the individual
heartbeats. If these variations exceed a pre-
defined threshold, the irregular heart rate detector
symbol lights up.
Systolic and diastolic pressure
The heart consists of two large chambers, the ven­
tricles and two smaller chambers, the atria. The
ventricles collect blood from the atria and expel it
towards the peripheral beds of blood vessels with­
in the body and the lungs. The atria collect blood
from these peripheral beds and prime the ventri­
cles.
When the ventricles contract and pump blood out
of the heart, the blood pressure reaches its maxi­
mum value in the cycle, which is called systolic
pressure (Fig. 3).
When the ventricles relax and are filled again with
blood, the blood pressure reaches its minimum
value in the cycle, which is called diastolic pressure
(Fig. 4).
Blood pressure classification
Consult a doctor in case of questions about your
blood pressure. Your doctor can inform you:
- About your normal blood pressure range.
- If your measuring result falls out of the range.
- Whether your blood pressure has reached a
dangerous level.
The following table shows the classification system
for the blood pressure measurements used in this
Explanation
Minimum blood pressure,
also see section Systolic
and diastolic pressure.
Number of heartbeats per
minute (pulse is typically
equivalent to heart rate).
Indicates status of battery
during charging.
Measurement unit of blood
pressure.
The cuff is inflating.
The cuff is deflating.
Irregular heart rate detec­
tion during the measure­
ment.
Start measurement for
selected user, and transmit
the measuring result.
Moving during the mea­
surement will result in an
inaccurate result.
Classification of measured
blood pressure following
WHO system (see 'Blood
pressure classification').
The device uses Bluetooth
for communication.
Heart rate detection during
the measurement
Battery status
The battery is almost empty.
The battery is empty.