Microlife 3AX1-4U Instruction Manual
BP3AX1-4U-JUN06-FDA-3
Premium Wrist
Blood Pressure
Monitor
with Microlife Averaging Mode and
PC Link Blood Pressure Analyzer Software
Instruction Booklet for model# BP3AX1-4U
US Patent #’s 6,447,457 (Microlife Averaging Mode)
Premium Wrist Blood Pressure Monitor
Instruction Manual
Model #BP3AX1-4U
Table of Contents
1. Introduction
1.1. Features of your blood pressure monitor
1.2. Important information about self-measurement
2. Important Information about Blood Pressure and its Measurement
2.1. How does high/low blood pressure arise?
2.2. Which values are normal?
2.3. How can you treat high blood pressure?
2.4. Benefits of Microlife Averaging Mode Technology
3. The Components of Your Blood Pressure Monitor
4. Using Your Blood Pressure Monitor
4.1. Inserting the batteries
4.2. Initial setup
4.3. Setting alarm times
4.4. Sleep mode
5. Taking a Measurement
5.1. Before the measurement
5.2. Common sources of error
5.3. Fitting the cuff
5.4. Measurement mode selection (Microlife Averaging Mode feature)
5.5. Measurement procedure
5.6. Discontinuing a measurement
6. Memory Recall and User Setting
6.1. Viewing measurements saved in memory
6.2. How to use the individual memory feature
6.3. Clearing the memory
7. Software Functions
7.1. Installation of software and downloading readings
8. Adjusting the Display Contrast
9. Error Messages / Malfunctions
10. Care and Maintenance
11. Warranty
12. What U.S. and International Standards is this device
manufactured to meet?
13. Technical Specifications
14. How to Contact Us
1
1. Introduction
1.1. Features of your Premium Blood Pressure Monitor, model # BP3AX1-4U
The blood pressure monitor is a fully automatic, digital blood pressure measuring
device for use on the wrist. This enables very fast and reliable measurement of
systolic and diastolic blood pressures as well as the pulse through the
oscillometric measuring method. The device offers excellent accuracy proven in
clinical studies and has been designed for ease of use.
Before using, please read this instruction manual carefully and then keep it in a
safe place. For further questions on the subject of blood pressure and its
measurement, please contact your doctor.
Caution!
1.2. Important information about self-measurement
• Self-measurement means control, not diagnosis or treatment. Unusual values
must always be discussed with your doctor. You should never alter the
dosages of any drugs prescribed by your doctor.
• The pulse reading is not suitable for checking the frequency of heart
pacemakers!
• Clinical trials have shown that wrist measurements can reach similar
accuracy to upper arm measurements. However, some individuals may get a
different result between both methods. Therefore, we generally recommend
to compare the readings of this device to data obtained by your doctor.
• Make sure you keep the device at heart level during measurement to avoid a
user accuracy error.
Electromagnetic interference
The device contains sensitive electronic components. Therefore, avoid strong
electrical or electromagnetic fields in the direct vicinity of the device (e.g. mobile
telephones, microwave cookers). These can lead to temporary impairment of the
measuring accuracy.
2
2. Important information about blood pressure and its measurement
2.1 How does high or low blood pressure arise?
Your level of blood pressure is determined in the circulatory center of your brain
and adjusts to a variety of situations through feedback from the nervous system.
To adjust blood pressure, the strength and frequency of the heart (Pulse), as well as
the width of circulatory blood vessels is altered. Blood vessel width is affected by fine
muscles in the blood vessel walls. Your level of arterial blood pressure changes
periodically during heart activity. During the "blood ejection" (Systole), the value is
highest (systolic blood pressure value). At the end of the heart’s "rest period" (Diastole)
pressure is lowest (diastolic blood pressure value). Your blood pressure values should lie
within certain normal ranges in order to prevent particular diseases.
2.2 Which values are normal?
Blood pressure is dangerously high if your diastolic pressure is above 90 mmHg and/or
your systolic blood pressure is over 160 mmHg, while at rest. In this case, please
consult your physician immediately. Long-term values at this level endanger your health
through continual damage to the blood vessels in you body. If your systolic blood
pressure values lie between 140 mmHg and 160mmHg and/or your diastolic blood
pressure values lie between 90 mmHg and 95mmHg consult your physician. Regular
self-checks will be necessary. If you have blood pressure values that are too low, (i.e.,
systolic values under 105mmHg and/or diastolic values under 60 mmHg), consult your
physician. Even with normal blood pressure values, a regular self-check with your blood
pressure monitor is recommended. You can detect possible changes in your values early
and react appropriately. If you are undergoing medical treatment to control your blood
pressure, keep a record of values along with time of day and date. Show these values
to your physician.
alter the drug doses prescribed by your physician.
Never use the results of your measurements to independently
3
The following standards for assessing high blood pressure (without regard to age) have
been established by the U.S. National Institutes of Health JNC7, 2003.
Category Systolic Diastolic
Normal <120 <80
Self-Check
Pre-Hypertension 120 - 139 80 - 89
Stage 1 140 - 159 90 - 99
Hypertension
Stage 2 >160 >100
Hypertension
(mmHg) (mmHg)
☞ Further information
• If your values are mostly normal under resting conditions but exceptionally high
under conditions of physical or psychological stress, it is possible that you are
suffering from so-called "labile hypertension." Consult your physician.
• Correctly measured diastolic blood pressure values above 120mmHg require
immediate medical treatment.
2.3 What can be done if regular high or low values are obtained?
a) Consult your physician.
b) Increased blood pressure values (various forms of hypertension) are associated with
considerable health risks over time. Arterial blood vessels in your body may be
endangered due to narrowing caused by deposits in the vessel walls
(Arteriosclerosis). A deficient supply of blood to important organs (heart, brain,
muscles) can result. Furthermore, the heart will become structurally damaged with
increased blood pressure values.
c) There are many different causes of high blood pressure. We differentiate between
common primary (essential) hypertension, and secondary hypertension. Secondary
hypertension can be ascribed to specific organ malfunctions. Please consult your
physician for information about the possible origins of your own high blood pressure.
d) There are measures you can take to reduce and even prevent high blood
pressure. These measures should include permanent lifestyle changes.
4
1) Eating habits:
• Strive for a normal weight corresponding to your age. See your doctor for your
ideal weight.
• Avoid excessive consumption of salt.
• Avoid fatty and fried foods.
2) Previous illnesses
• Consistently follow all medical instructions for treating illness such as:
diabetes (diabetes mellitus or sugar diabetes), fat metabolism disorder, and
gout.
3) Habits
• Give up smoking completely.
• Drink only moderate amounts of alcohol.
• Restrict your caffeine consumption (coffee, tea and chocolate).
4) Your physical condition
• After a medical examination, and with your doctor’s approval and direction,
exercise.
• Choose sports which require stamina and avoid those which require strength.
• Avoid reaching the limit of your performance.
• With previous illnesses and/or an age of over 40 years, please
consult your physician before beginning your exercise routine. You must
receive advice regarding the type and extent of exercise that is
appropriate for you.
2.4 Microlife Averaging Mode
Microlife Averaging Mode is a new concept for optimum reliability in measurement of
blood pressure. A single measurement is rarely your real result. An average of three
readings is medically demonstrated to provide the most accurate result. With the push
of a single button, the Averaging Mode blood pressure monitor takes three consecutive
measurements and calculates the average.
5
3. Components of your blood pressure monitor
SYS
DIA
PUL
120
mm
Hg
80
mm
Hg
68
/mi
n
11
:31
am
No. 10
4/11
1
ON/
OFF
/ST
ART
M
The illustration below shows your blood pressure monitors key features:
Display
Battery Cover
Scroll Buttons
M = OK/Mode Button
ON/OFF/START
Button
Cuff
This wrist cuff fits wrist circumference of 5.3” to 7.67” (13.5cm to 19.5 cm).
4. Using the blood pressure monitor
4.1. Inserting the batteries
After you have unpacked your device, insert the
batteries.
1. Remove the cover as illustrated (A).
2. Lay the clear plastic strip (
B) inside the battery
A
compartment, and insert 2 x size AAA 1.5V
C), observing the indicated polarity
batteries (
according to the markings on the cuff (D).
Caution!
•
After the low battery warning appears, the device
B
is disabled until the batteries have been replaced.
•
If the battery warning appears in the display, the
batteries are discharged and must be replaced by
•
•
new ones.
Use AAA Long-Life or Alkaline 1.5V Batteries. The
use of rechargeable batteries is not recommended.
If the blood pressure monitor is left unused for long
C
periods, remove the batteries from the device.
6
D
4.2. Initial Setup
When the batteries are installed, the display shows
the language selection screen.
Press ▲ or ▼ to select the display language. Press
OK (M) to confirm the selection. The default language
is English.
Language
➤ English
Deutsch
Francais
Russian
Espanol
Jan 1 2006
The device prompts you to set the time and date. The
year blinks highlighting the first field to change.
▲ or ▼ to change the year. Press OK (M) to
Press
confirm the date. The month, day, hour, and minute
are all consecutively highlighted. Press
change these fields and press
are then prompted to set the alarms.
4.3. Setting Alarm Times
After you have set the time, you can set one or two
alarms to alert you to take your blood pressure
measurements. An alarm icon appears in the display.
▲ or ▼ to set the hour and minute for Alarm 1.
Press
OK (M) to confirm each setting.
Press
When the alarm icon is highlighted, press
enable or disable Alarm 1. Press
You are then prompted to set Alarm 2. Follow the
instructions for Alarm 1 to set this alarm.
After setting the alarms, press
Date Setup. An alarm icon appears in the display to
indicate that the alarm is activated.
Attention!
The time display is set on a 24-hour clock.
▲ or ▼ to
OK (M) to confirm. You
▲ or ▼ to
OK to confirm.
OK to exit the Time and
0:00
Display
Off
Feb 24 2006
8:15
Display
Off
Feb 24 2006
8:15
Display
Off
Feb 24 2006
10:30
Display
Off
7
When the final field (DISPLAY OFF) is highlighted, press
▲ or ▼ to select whether you want the time and date
display to remain on when the device is switched off.
Press
OK to confirm the settings and exit the time
setup screen.
Apr 17 2006
4.4. Sleep Mode
The device is designed to stay
in sleep mode as batteries are
loaded. The illustration shows
the display elements, when the
BPM is in sleep mode, and the
DISPLAY OFF feature is disabled
(see Section 4.2).
5. Taking a measurement
5.1. Before the measurement
• Avoid eating, smoking as well as all forms of exertion directly before the
measurement. All these factors influence the measurement result. Try to find
time to relax by sitting in an armchair in a quiet atmosphere for about ten
minutes before measurement on the left wrist.
• If you compare readings note the time of day as blood pressure fluctuates
throughout the day.
5.2. Common sources of error:
Note: Comparable blood pressure measurements always require the
same conditions! Quiet conditions are always required for your
optimal measurement.
• All efforts by the patient to support the arm can increase the blood pressure.
Make sure you are in a comfortable, relaxed position and do not flex any of
the muscles in the measurement arm during the measurement. Use a cushion
8
15:31
JOHN MAM
Date
Time (Military Time
24-hour format)
Alarm active
Microlife
Averaging Mode
Current user (#1)
for support if necessary.
• If the wrist artery lies considerably lower or higher than the heart, an
erroneously higher or lower blood pressure will be measured! (Each 15cm or
5.9” difference in height results in a measurement error of 10mmHg!)
• A loose cuff causes false measurement values.
• With repeated measurements, blood can accumulate in the respective arm,
which can lead to false results. Correctly executed blood pressure
measurements should therefore first be repeated after a 1 minute pause or
after the arm has been held up in order to allow
the accumulated blood to flow away. (Does not
apply to a Microlife Averaging Mode
measurement.)
5.3. Fitting the cuff
a) Remove all objects and jewelry (e.g. wristwatch)
from the wrist in use. Put the cuff over the wrist
with the monitor face on the inside of the wrist.
b) The distance between the cuff and the hand should
be approx. 1/2” (10 mm).
c) Secure the cuff with the Velcro™ fastener, so that
it lies comfortably and not too tight. No space
should remain between the cuff and the wrist.
d) Lay your arm on a table, with your palm upwards.
Support your arm with a cushion, so that the cuff
rests at about the same height as your heart. Do
not hold or support the cuff with your free hand.
Remain still for 5 minutes before beginning a
measurement.
9
5.4. Measurement Mode Selection
Choose which measurement mode you want to use before taking a blood pressure
reading. Press
mode, and press
OK (M) to enter the menus, press ▲ or ▼ to select Measuring
OK (M) to enter the submenu Select , «1» or «3/MAM» for
Microlife Averaging Mode with the scroll buttons and confirm your selection by
OK».
«
Microlife Averaging Mode Technology
In average mode, the unit takes 3 continuous
MEASURING MODE
1 3/MAM
measurements, and afterwards calculates the
result based on an average using Microlife
Averaging Mode Technology (see Section 2.4).
[
▼
] [▲
There is a 15-second rest time between
measurements; the unit beeps during the last 5
seconds to remind you of the upcoming
measurement.
Single Mode
In single mode «1», only one measurement is taken.
5.5. Measurement Procedure
After the cuff and arm have been appropriately
positioned and the measurement mode is set, the
measurement can be taken as follows. Press the
ON/OFF/START button. The Welcome screen
appears, and is followed by a screen which shows
you how to properly hold your arms. If the display
Hold left wrist at heart level
and remain still during
measurement.
off function is enabled, the Sleep Mode screen
appears for two seconds before
measurements are taken.
Numeric pressure
Graphical pressure
The pump begins to inflate the
cuff and the increasing cuff
pressure is displayed.
10
]
After the suitable inflation pressure has been reached, the pump stops, the
measurement signals are displayed and the heart icon flashes.
This curve shows each heart beat activity. Movement artifacts (excessive
movement) would become visible by large deviations within the curve.
User #1 Icon
Relative amplitude
Heart icon
Pressure
Microlife
A long beep sounds when the measurement has
been completed. The systolic and diastolic blood
pressure and pulse rate appear in the display.
The measurement reading remains on the display
for approximately 30 seconds. If no button is
pressed during the 30-second period the
instrument switches itself off in order to preserve
the batteries.
When the unit is set to MAM, it means the
Microlife Averaging Mode Technology
has been engaged and three separate
measurements take place as
explained under section 5.4.
Countdown
timer
Measurement
number
Averaging Mode icon
3/03 15:48
124
sys
73
dia
77
pul
22
MAM
mmHg
mmhg
/min.
11
5.6. Discontinuing a measurement
If it is necessary to interrupt a blood pressure measurement for any reason, for
example, if the patient feels ill, press the ON/OFF/START button. The device
immediately lowers the cuff pressure and enters into sleep mode.
6. Memory handling and user setting
6.1 Viewing Measurements Saved in
Memory
This blood pressure monitor automatically
stores each of the last 30 measurement
values. To view the stored measurements
for a user, press or in sleep mode. The
last measurement taken for the user is
displayed.
The user, measurement sequence number,
date, and time are displayed on the top.
Data obtained in Microlife Averaging Mode
are indicated by a MAM symbol in the
upper right corner.
• Press or to scroll through the list items.
• The first item in the list is the average of all
stored data.
OK and the display shows table of all
• Press
data.
• The first entry is the average. Data obtained in
Microlife Averaging Mode is indicated by an «A»
symbol at the very right.
• Press or to scroll through the list.
Measurement
number
Indicates an average of
3 readings was used
9 MAM
3/06 15:48
124
sys
dia
pul
mmHg
73
77
3/06 15:48
No. sys dia pul
avg. 149 110 85
1 145 109 83
2 119 71 74 A
3 124 73 79
4 130 80 77 A
mmhg
/min.
12
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