Microlife BP 3SZ1-1 User manual

Instruction Manual
EN 3
BP 3SZ1-1
WatchBP
O3
Professional 24-hour
Ambulatory Blood
Pressure Monitor

2
Microlife WatchBP 03 (BP3SZ1-1) Ambulatory Blood Pressure Monitor is designed to measure systolic
and diastolic blood pressure, Mean Arterial Pressure (MAP) and pulse rate using a non-invasive technique
in which an inatable cuff is wrapped around the upper arm. The WatchBP O3 device has been clinically
validated according to the ESH and ISO 81060-2: 2013 protocol (equivalence).
Function for Options:
AFIB Version: The device can detect atrial brillation if present during blood pressure measurement.
CBP Version: The device can determine ascending aortic blood pressure values and related parameters
during regular brachial cuff blood pressure measurement.
WatchBP product support:
https://www.microlife.com/professional-products
WatchBP Software support:
https://www.microlife.com/support/software-professional-products
Developers support:
https://www.microlife.com/developers1

EN
3
WatchBP O3
Product description
Major parts ..................................................................... 6-7
Product Overview ........................................................... 8-9
Before using the device for the first time
Activating the device .........................................................10
Measurement programming
Connecting the Device to a Computer ................................11
Start the Software Program ...............................................11
Programmable measurement intervals ...............................12
Day and Night Period (Two measurement periods) ..............12
Setting highest ination pressure .......................................13
Setting ambulatory options ................................................13
Preparing for blood pressure measurement
Conrm the cuff size ..........................................................14
Connecting the cuff tubing to the device .............................14
Preparing the measurement arm ........................................15
Positioning the cuff and device ...........................................15
Taking blood pressure measurement
Next measurement indicator ..............................................16
Measurement reminder .....................................................16
During blood pressure measurements ...............................17
Initiating a blood pressure measurement manually ..............18
Special functions
Screening for atrial brillation during blood pressure
measurement ...................................................................19
Central blood pressure parameters ....................................19
How is central blood pressure measured? ..........................20
Recording medication intake .............................................21
Upgrading the version of the device ...................................22
Transferring and deleting measurement data ......................23
Appendix
How to replace batteries ....................................................24
Bluetooth connectivity .......................................................25
Safety, care, accuracy test and disposal .............................26
Error messages ........................................................... 29-32
Technical specications .....................................................33
Table of Contents

4
Product description
The WatchBP O3 ABPM system consists of two
major parts
• The device, cuffs and accessories.
• The WatchBP Analyzer Software.
With the WatchBP Analyzer Software
1) The device can be programmed for the blood pressure
measurement procedure.
2) Measured blood pressure values can be downloaded
to the PC.
3) A PDF report and Microsoft Excel spreadsheet (or .csv
format.) for data analysis can be generated.
Device Version
The device is upgradable for obtaining special features.
There are three different versions of the device:
• Standard version: standard ABPM
• AFIB version: standard ABPM with Microlife Atrial
Fibrillation Detector
• CBP version: standard ABPM with Microlife Atrial
Fibrillation Detector and Central Blood Pressure
measurement
The Atrial Fibrillation Detector and Central Blood Pressure
measurement of the device can be activated through the
WatchBP Analyzer Software. Refer to Upgrading the
version of the device for details.

EN
5
WatchBP O3
Contents
1. WatchBP O3 Monitor (dependent on purchase version)
2. WatchBP O3 Cuff – Size M
3. WatchBP O3 Cuff – Size L
4. Carrying Pouch
5. Data Cable
6. AAA Alkaline Batteries x 4
7. Tube holder x 3
8. 100 cm cuff tube x 2
9. Instruction Manual
10. Patient diary
11. Quick start guide
Download the latest WatchBP Analyzer
Software from the Microlife website.
https://www.microlife.com/support/
softwareprofessional-products
*

6
Product Overview
Battery compartment
SYS.
mmHg
DIA.
mmHg
PUL.
/min
START
STOP
Start/Stop
button
On/Off button
USB port Medication button
Cuff connector
Product description

EN
7
WatchBP O3
Bluetooth indicator
Battery indicator
AF indicator
Count down indicator
Medication indicator
cPP indicator
Heart indicator
Time
SYS/ cSBP
DIA/ cDIA/
Countdown min to next
measurement
Pulse/ CPP

8
Installing the Software Program
Download the latest WatchBP Analyzer Software from the
Microlife website.
https://www.microlife.com/support/software-
professional-products
Double click the download installer and simply follow the
instructions provided in the installation window on the
computer screen.
Before using the device for the first time
Activating the device
Open the battery compartment on the rear of the device
and insert 4x AAA alkaline batteries according to the
battery polarities (+ / - ) and close the compartment.
Press the On/Off button to activate the device.
The device displays sequentially the full screen display,
the voltage of the batteries, the number of measurements
stored on the device and the countdown minutes before
the next measurement based on default schedule
programmed on the device.


Program the device and clear existing measurements of the device before any
new patient session.
The default measurement interval is 30 minutes for the awake hours and 60
minutes for the asleep hours.

EN
9
WatchBP O3
Measurement programming
Connecting the Device to a Computer
Connect the device to the PC using the USB cable
provided with the device.
Start the Software Program
Start the software program. The date/time on the device
will sync with date/time of PC automatically when
successfully connected with WatchBP Analyzer PC
software.
If the device and WacthBP Analyzer software is connected
successfully:
• <USb> is displayed on the LCD screen of the device.
• The device ID, model, version of the Device and
batteries condition etc. are displayed on the WatchBP
Analyzer software.
See also the Instruction manual of the WatchBP Analyzer for details. The
instruction manual of the WatchBP Analyzer can be found in the software
by clicking <About> in the functional bar.

10
Programmable measurement intervals
Enter name, identity number, and date of birth to create
a new record (if required). Select a patient and click
<Program Device>.
The device can automatically take measurements at xed
interval times of 5, 10, 15, 20, 30, or 60 minutes, as can be
programmed.
Day and Night Period (Two measurement periods)
The awake (Day) measurement period can be
programmed to start at any hour between 00 to 23, and
the asleep (Night) measurement period can be set to any
hour between 00 to 23. Measurement time-intervals can
be set to 5, 10, 15, 20, 30, or 60 minutes for both awake
and asleep time periods.
See also instruction manual of the WatchBP Analyzer for details. The option of taking central blood pressure measurement is selectable if the
feature of the device is activated.
Measurement programming
Setting Day and Night Period
Day Period
Night Period
06
22
~ 22 with
~ 06 with
minutes interval
minutes interval
30
30
60
60
minutes interval
minutes interval
Central BP measurement
Central BP measurement

EN
11
WatchBP O3
Setting highest inflation pressure
Click on the circle left to “Enable” and click on the
arrow to determine the height of the inflation pressure.
“Disable” means that the device will automatically
search for the right inflation pressure (default).
Setting ambulatory options
On default the blood pressure data are hidden, and the
device is in silent mode. In order to show the measured
blood pressure values on the LCD screen and to provide
a beep before each measurement, tick the squares to the
left.
The display of blood pressure values on the LCD screen can be enabled or
disabled.
The beeper can be enabled or disabled.
Once you have completed the settings, press ‘Program’ to program the
schedule into the device.
For further explanation see instruction manual of the WatchBP Analyzer.



Setting ambulatory options.
Hiding BP data
Silent mode
Setting Highest Inflation pressure
Enable Disable(auto)
mmHg
* ”Disable” is recommended
180
160
180
200
220

12
Preparing for a blood pressure measurement
Confirm the cuff size
A variety of different cuff sizes are available.

Only use Microlife cuffs!
Washable cuffs are available in both nylon and cotton.
S
M
L
XL


S, XL size cuffs can be ordered optionally.
M & L size cuffs are supplied as standard with the device.
Connecting the cuff tube to the device
Push the end of the tube firmly onto the metal cuff
connector on the device.
32-52 cm
(12.6-20.5 inches)
14 - 22 cm
(5.5 - 8.7 inches)
22 - 32 cm
(8.7 - 12.6 inches)
32-42 cm
(12.6-16.5 inches)

EN
13
WatchBP O3
Positioning the cuff and device – Fit the cuff closely,
but not too tight. Make sure that the cuff is 2~3 cm (1
inch) above the elbow with the tube on the inside of the
arm. The cuff tube should point upwards and should be
mounted over the patient’s shoulder to the other site of the
body.


Adjust the tube holder on the belt of the pouch so it is properly positioned
on the shoulder.
Add the pouch to the belt to carry the device.
2–3cm
Preparing the measurement arm – Remove all
clothing covering or constricting the measurement arm.
Avoid rolling up long sleeves, as this may lead to constriction of blood
flow to the measurement arm.

14
Taking blood pressure measurement
Measurement reminder
One minute before the next scheduled measurement, the
device will partially inate to approximately 50 mmHg and
immediately deate the cuff to remind the patient of the
upcoming measurement.
Five seconds before the next scheduled measurement,
the device can emit a short series of beeps to notify the
patient of the coming measurement (optionally).
The beep is switched off by default and can be enabled
via software setting. (See instruction manual of the
WatchBP Analyzer)
Next measurement indicator
The device will display the next measurement time,
indicated by a countdown in minutes on the display.
The example shows countdown 2 minutes to the next measurement.
Measurement reminders will be
disabled for asleep hours.
The beep sound is disabled for asleep measurement
2-3 cm
(3/4 to 1 inch)

EN
15
WatchBP O3
During blood pressure measurements
The patient should be reminded to remain still, refrain
from talking, and to breathe normally during the
measurement. If the patient is occupied at the start of a
measurement, the patient should, where possible, try to
relax the measurement arm.
Storing measurement data – The device can store
up to 330 memories, which includes measurements,
medication records, errors and start/ stop events.
Repeat the blood pressure measurements in case
of an error – The device will automatically repeat the
measurement after a two-minute countdown should an
error occur during measurement.
At any time, a single measurement can be stopped by pressing the Start/
Stop or ON/OFF button.
If the repeat measurement encounters an error again, the device will
take an extra measurement after a four minutes countdown. If the extra
measurement is not successful either, the device will record an error
message.
If the device stops taking measurements, the patient should return the
device to determine the cause of error.
When the memory is full the LCD screen of the device displays ‘Full’ and no
further measurements or medication records can be performed. Upload
the measurement data and clear the memory to reset the device.

16
Initiating blood pressure measurement manually
Press the Start/Stop button during standby to start a
measurement. Once the measurement is complete, the
measurement value is automatically stored and can be
checked with the software.
Before starting a measurement, make sure the correct cuff size is used and
is properly positioned on the arm.
Readings are displayed at the end of the manually initiated blood pressure
measurement.
When a central blood pressure measurement is performed. The LCD
screen switches every 2 seconds after the measurement to display both
central and brachial (peripheral) blood pressure values.
If ‘Highest Inflation Pressure’ is enabled (on default it is disabled), the
selected ‘Highest Inflation Pressure’ is displayed on the device before
starting the measurement.
Setting Highest Inflation pressure
Enable Disable(auto)
mmHg
* ”Disable” is recommended
180

EN
17
WatchBP O3
Special functions
Screening for atrial fibrillation during blood
pressure measurement
The device is designed to screen for atrial brillation
during blood pressure measurements (optional) with high
accuracy: a sensitivity of 98% and a specicity value of
92%*. If atrial brillation is detected this will be shown in
the report.
About Atrial Fibrillation
Atrial brillation is a common heart rhythm problem and a
common cause of major strokes. It affects 8% of those 65
years and older and about 20% of all strokes are caused
by atrial brillation. Atrial brillation is a rhythm problem
that can last from a few minutes, to days or weeks and
even years. Atrial brillation can lead to the formation
of blood clots in the heart. These clots can break off
and ow to the brain causing stroke. One sign of atrial
brillation is palpitations. However, many people have no
symptoms and therefore may remain undetected whereas
diagnosing atrial brillation early followed by adequate
treatment can largely reduce the chance of getting a
stroke.
Central blood pressure parameters
The device is designed to take central blood pressure
parameters (optional).
Central blood pressure is the pressure in the ascending
aorta, the largest artery that originates from the left
ventricular of the heart and from where oxygen is
distributed to all parts of the body through the systemic
circulation. Central Systolic Blood Pressure and Central
Pulse Pressure by this monitor is determined directly
through pulse volume plethysmography (PVP) waveform
analysis. Central Diastolic Blood Pressure by this monitor
is calculated by subtraction of Central Systolic Blood
Pressure and Central Pulse Pressure.
Verberk et al. Screening for atrial fibrillation with automated blood pressure
measurement: Research evidence and practice recommendations. Int J Cardiol
2016: 465–473
*

18
How is central blood pressure measured?
The device measures brachial systolic and diastolic blood
pressure as usual. However, where the cuff normally
totally deates after the blood pressure measurement,
the cuff now stops deating at approximately 60 mmHg
cuff pressure to keep a stable pressure on the brachial
artery for approximately 10 seconds which is needed to
acquire brachial pulse volume plethysmography (PVP)
waveforms (pulse volume recording). During these 10
seconds approximately 10 PVP waveforms are recorded
from which one average PVP waveform is determined
and analysed. From the average PVP waveform, some
characteristic points (parameters) are identied that
are directly related to arterial compliance (stiffness) and
wave reections. With these parameters and previously
measured peripheral (regular) blood pressure the central
systolic blood pressure value and the central pulse
pressure value are then determined1.
The time that is needed to determine the central blood
pressure value may vary among patients; i.e. with faster
heart rate, less time is required for collecting the number
Sung, S.H., et al., Measurement of central systolic blood pressure by
pulse volume plethysmography with a noninvasive blood pressure
monitor. Am J Hypertens, 2012. 25: 542-8.
Cheng, H.M., et al., Measurement accuracy of a stand-alone
oscillometric central blood pressure monitor: a validation report for
Microlife WatchBP Office Central. Am J Hypertens, 2013. 26: 42-50.
1.
2.
of required PVP waveforms. It is very important to keep
the arm still during the time the PVP waveforms are
collected.
Accuracy of the central blood pressure
parameters
The accuracy of central blood pressure parameters
performed with this device can only reliably
be determined against intra-arterial blood
pressure measurement. The device is a certied
equivalence with the WatchBP Ofce Central that has
been validated against simultaneous recorded intra-
arterial blood pressure measurement in 85 subjects
and showed high accuracy2 .
Special functions

EN
19
WatchBP O3
Recording intake medication
The patient can record the time of medication intake
by pressing and holding the medication button for 2
seconds. The pill icon ashes twice and displays for 1 min
before the LCD screen returns to display the count down
time (min) to next measurement.

20
Upgrading the version of the device
The device is upgradable for obtaining special features.
There are three different versions of the device:
• Standard version: standard ABPM
• AFIB version: standard ABPM with Microlife Atrial
brillation Detector
• CBP version: standard ABPM with Microlife Atrial
brillation Detector and Central Blood Pressure
measurement
The Atrial Fibrillation Detector and Central Blood Pressure
measurement of the device can be activated through the
WatchBP Analyzer. A 16-digit activation key is needed
specically to match the device ID for activation. Please
contact Microlife or the local distributor for additional
information.
Central BP Activation
Device ID: 112233445566
Please insert a 16-digit activation key
Conrm Cancel
About
WatchBP Analyzer: Version 1.0.0.2
Device ID: 112233445566
Firmware version: RE1.2018.10.07
Options:
Please consult Microlife or local distributor on the
options activation
User Manual
Okay
AFIB
Central BP
activate
activate