Philips DL8765/15 - Manual (Page 5)

Display
Sym
bol
Description Explanation
Systolic
blood
pressure
Maximum blood pressure.
Also see section Systolic
and diastolic pressure
Diastolic
blood
pressure
Minimum blood pressure,
also see section Systolic
and diastolic pressure.
Heart rate Number of heartbeats per
minute (pulse is typically
equivalent to heart rate).
Battery
status
Indicates status of battery
during charging.
Measure­
ment unit
Measurement unit of blood
pressure.
Inflation
indicator
The cuff is inflating.
Deflation
indicator
The cuff is deflating.
Irregular
heart rate
detector
Irregular heart rate
detection during the
measurement.
User IDs Start measurement for
selected user, and transmit
the measuring result.
Movement
detector
Moving during the
measurement will result in
an inaccurate result.
Blood
pressure
classification
Classification of measured
blood pressure following
WHO system (see 'Blood
pressure classification').
Bluetooth®
symbol
The device uses Bluetooth
for communication.
Heart rate
detection
Heart rate detection during
the measurement
Battery status indications
Battery
symbol
Battery status
The battery is almost empty.
+
The battery is empty.
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
completely 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
symbol
Battery charging indication
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
pressure. 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
determines 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
ventricles and two smaller chambers, the atria. The
ventricles collect blood from the atria and expel it
towards the peripheral beds of blood vessels
within the body and the lungs. The atria collect
blood from these peripheral beds and prime the
ventricles.
When the ventricles contract and pump blood out
of the heart, the blood pressure reaches its
maximum 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.