Microlife 3AA1-1 Instruction Manual
Automatic Blood Pressure Monitor
Model # 3AA1-1: For upper arm
Instruction Manual
Tensiómetro automático
Instrucciones de uso
PLEASE NOTE:
THIS MEDICAL INSTRUMENT MUST BE USED ACCORDING TO
INSTRUCTIONS TO ENSURE ACCURATE READINGS.
Questions? Call toll free at 1-800-568-4147
Automatic Blood Pressure Monitor
Instruction Manual
Table of contents
1. Introduction
1.1. Features of your blood pressure monitor
1.2. Important information about self measurement
2. Important information on blood pressure and its measurement
2.1. How does high/low blood pressure arise?
2.2. Which values are normal?
2.3. What can be done if regular high/low values are obtained?
3. Components of your blood pressure monitor
4. Operation of your blood pressure monitor
4.1. Inserting the batteries
4.2. Using an A/C power adapter
4.3. Tube connection
Measurement Procedure
5.1. Before measurement
5.2. Common sources of error
5.3. Fitting the cuff
5.4. Setting the time and date
5.5. Measuring procedure
5.6. Memory – displaying the last measurement
5.7. Discontinuing a measurement
6. Error Messages/Troubleshooting
7. Care and maintenance
8. Warrantee
9. Certifications
10. Technical specifications
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1. Introduction
1.1.Features of your microlife automatic blood pressure monitor,
model # 3AA1-1
Your microlife blood pressure monitor is a fully automatic digital blood pressure measuring
device for use on the upper arm. It enables very fast and reliable measurement of the
systolic and diastolic blood pressure as well as the pulse by way of the oscillometric
method. This device offers clinically proven accuracy and has been designed to be user
friendly.
Before using, please read this instruction manual carefully and then keep it in a safe
place. Please contact your doctor for further questions on the subject of blood pressure
and its measurement.
Attention!
1.2.Important information about self-measurement
• Self-measurement means Control,
not diagnosis or treatment. Unusual values
must always be discussed with your doctor.
Under no circumstances should you
alter the dosages of any drugs prescribed by your doctor.
•
The pulse display is not suitable for checking the frequency of heart pacemakers!
• In cases of irregular heartbeat (Arrhythmia), measurements made with this instrument
should only be evaluated after consultation with your doctor.
Electromagnetic interference:
The device contains sensitive electronic components. Avoid strong electrical or
electromagnetic fields in the direct vicinity of the device (e.g. mobile telephones,
microwave ovens). These can lead to temporary impairment of the measuring accuracy.
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2. Important information on blood pressure and its measurement
2.1. How does high/low blood pressure arise?
Your level of blood pressure is determined in the circulatory center of the 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 effected 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).
Blood pressure values must lie within certain normal ranges in order to prevent particular
diseases.
2.2. Which values are normal?
Blood pressure is too high if at rest, your diastolic pressure is above 90mmHg and/or the
systolic blood pressure is over 160mmHg. In this case, please consult your doctor
immediately. Long-term values at this level endanger your health due to continual damage
to the blood vessels in your body.
Should the systolic blood pressure values lie between 140mmHg and 160mmHg and/or
the diastolic blood pressure values lie between 90mmHg and 95mmHg. Consult your
doctor. Regular self-checks will be necessary.
With blood pressure values that are too low, (i.e. systolic values under 105mmHg and/or
diastolic values under 60mmHg), consult your doctor.
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 doctor.
Never use the
results of your measurements to independently alter the drug doses prescribed
by your doctor.
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☞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 doctor.
•
Correctly measured diastolic blood pressure values above 120mmHg and
require immediate medical treatment.
2.3. What can be done if regular high or low values are obtained?
a) Consult your doctor.
b) Increased blood pressure values (various forms of hypertension) are associated with
considerable health risks over time. Arterial blood vessels in your body are endangered
due to constriction caused by deposits in the vessel walls (Arteriosclerosis). A deficient
supply of blood to important organs (heart, brain, muscles) can result from
arteriosclerosis. 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 the
common primary (essential) hypertension, and secondary hypertension. The latter
group can be ascribed to specific organ malfunctions. Please consult your doctor for
information about the possible origins of your own increased blood pressure values.
d) There are measures which you can take to reduce and even prevent high blood
pressure. These measures must be permanent lifestyle changes.
A) Eating habits
• Strive for a normal weight corresponding to your age. See your doctor for your ideal
weight.
•Avoid excessive consumption of common salt.
Range Systolic Diastolic Measures
Blood pressure Blood pressure
Hypotension (low) lower than 100 lower than 60 Consult your doctor
Normal range between 100 and 140 between 60 and 90 Monitor regularly
Mild hypertension (high) between 140 and 160 between 90 and 100 Consult your doctor
Moderately serious between 160 and 180 between 100 and 110 Consult your doctor
hypertension (higher)
urgent!
Serious hypertension higher than 140 higher than 110 Consult your doctor
(very high)
urgent!
Specific systolic higher than 140 lower than 90 Consult your doctor
hypertension
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Which values are normal? : (World Health Organization)
•Avoid fatty foods.
B) Previous illnesses
• Consistently follow all medical instructions for treating illness such as:
• Diabetes (Diabetes mellitus or sugar diabetes)
• Fat metabolism disorder
• Gout
C) Habits
• Give up smoking completely.
• Drink only moderate amounts of alcohol.
• Restrict your caffeine consumption (coffee, tea, chocolate).
D) 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 doctor
before beginning your exercise routine. You must receive advise regarding the type and
extent of exercise that is appropriate for you.
3. Components of your blood pressure monitor
a) Measuring unit
Memory Button
Cuff Jack
Socket
Display
Time & Select
User
START/STOP Button
AC/DC Power
Socket
5
120
85
72
Start
M
b) Upper arm cuffs:
Type S101 for arm circumference 22–30 cm or
8
11/
16
” -11
13 /
16
” (included)
Type S102 for arm circumference 30–38 cm
11
13
/
16
” -15” (order as a special accessory)
Please Note:
Do not force cuff connection into the opening. Make sure the cuff connection is not pushed
into the AC adapter port. If the cuff is too small, call for further information.
4. Operation of your blood pressure monitor
4.1. Inserting the batteries
After you have unpacked your device insert the batteries. The battery compartment is
located on the back side of the device (see illustration).
a) Remove cover as illustrated.
b) Insert the batteries (4 AA, 1.5 V), following the
indicated polarity. (+ -)
c) If the low battery indicator appears in the
display, the batteries are discharged and the
unit will not function.
d) If batteries are inserted incorrectly, the display
may function eratically or not at all.
Check battery polarity.
Low Battery Indicator
6
Attention!
• After the low battery indicator appears, the device won’t function until the batteries
have been replaced.
• Please use “AA” Long-Life or Alkaline 1.5V Batteries.
•
Do not use rechargable batteries.
• If the blood pressure monitor is not used for long periods, remove the batteries from
the device.
Functional check: Hold the On/Off button down to test all the display elements. When
functioning correctly many icons will appear.
4.2. Using an AC/DC power adapter (special accessory)
It is possible to operate this blood pressure instrument with an AC/DC adaptor. (output 6 V
DC / 600 mA with DIN plug). Make certain that you use an adaptor which fulfills the legal
requirements and electronic requirements in the U.S. (UL standard)
a) Push the plug into the socket at the left side
of the instrument.
b) Plug the AC adaptor into a 110 V
power socket (U.S. or Canada).
c) Test that power is available by
pressing the On/Off button.
Note:
• No power is taken from the batteries while the AC/DC adaptor is connected to the
instrument.
• If the power is interrupted during a measurement (e.g. by removal of the adaptor from
the wall socket), the instrument must be reset by removing the plug from the
instrument.
• Please consult if you have questions
relating to the AC/DC adaptor.
4.3. Tube connection
Insert the cuff tube into the opening
provided on the side of the instrument,
as shown in the diagram.
Right Opening
Left Opening
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5. Measurement Procedure
Please note: You should always be seated before and during measurement.
5.1. Before measurement:
•Avoid eating and smoking as well as all forms of exertion directly before
measurement. These factors influence the measurement result. Find time to relax by
sitting in an armchair in a quiet atmosphere for about ten minutes before
measurement.
• Remove any garment that fits closely to your upper arm.
• Always measure on the same arm (normally left).
• Always perform measurements at the same time of day, since blood pressure changes
during the course of the day.
5.2. Common sources of error:
Note:
Comparable blood pressure measurements always require the same conditions!
These are normally quiet conditions.
•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 activate any muscles in the
measurement arm during measurement. Use a cushion for support and rest your arm
on a table.
• If the upper arm artery lies considerably lower or higher than the heart, a false higher
or lower blood pressure will be measured!
*A variation of 6” between cuff and heart level can result in a reading error
of + or - 10mm Hg.
• Cuffs that do not fit properly result in false measurement values. Selecting the correct
cuff is extremely important. The cuff size is dependent upon the circumference or
distance arround your upper arm measured in the center. The permissible range is
printed on the cuff. If this is not suitable for your use, please contact .
Note: Use only clinically approved cuffs. e cuffs are specially
manufactured and tested.
•A loose cuff or a sideways protruding air pocket causes false measurement values.
• Repeated measurements without rest allows blood to accumulate in the arm. This can
lead to false results. Measurements should be done after a 5 minute rest to ensure
accuracy.
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5.3. Fitting the cuff
a) Pass the end of the cuff through the flat
metal ring so that a loop is formed. The
velcro closer must be facing outwards.
(Ignore this step if the cuff has already been
prepared.)
b) Place the cuff over the left upper arm so that
the tube is closer to your lower arm.
c) Lay the cuff on the arm as illustrated. Make
certain that the lower edge of the cuff lies
approximately 3/4” to 1”(2 to 3cm) above the
elbow and that the tube is closer to the inner
side of the arm.
Important! The 1” white mark on the cuff
must lie exactly over the artery which runs
down the inner side of the arm.
d) Tighten the cuff by pulling the end and close
the cuff by affixing the velcro.
e) There should be little free space between the
arm and the cuff. You should able to fit 2
fingers between your arm and the cuff.
Clothing must not restrict the arm. Any piece
of clothing which does must be removed.
f) Lay your arm on a table (palm upward) so the
cuff is at the same height as your heart.
Make sure the tube is not kinked.
g) Remain seated quietly for two minutes
before you begin the measurement.
3
/4”-1”
tube
Left Arm
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