Microlife BP3AC1-1PC Instruction Manual
Blood Pressure Monitor
with Irregular Heartbeat Detector
and Microlife Averaging Mode
Instruction Booklet for model #BP3AC1-1PC
for models with the following ID numbers:
• 3AC1-AP
• 3AC1-PC
• 3AC1-PCCOS
US Patent #’s 6,485,429 (Irregular Heartbeat Detector)
6,447,457 (Microlife Average Mode)
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?
2.4. Irregular Heartbeat Detector
2.5. MAM technology
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
5. 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. Reading the set date
5.6. Selection of Microlife Average Mode
5.7. Measuring procedure
5.8. Memory - Displaying the last 99 measurements
5.9. Discontinuing a measurement
6. Blood Pressure Analyzer Software (may be optional)
6.1.Installation and data transmission
7. Error Messages/Troubleshooting
8. Care and maintenance
9. Warranty
10. Certifications
11. Technical specifications
12. How to contact us
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1. Introduction
1.1.Features of your Microlife automatic blood pressure monitor,
(model #BP3AC1-1PC)
Your Microlife blood pressure monitor with MAM (microlife Average Mode) Technology,
Irregular Heartbeat Detection, and PC Link Blood Pressure Analyzer capabilities (software
and USB cable included in 3AC1-PC and 3AC1-PCCOS) is a fully automatic digital blood
pressure measuring device for use by adults on the upper arm at home or in your doctor’s/nurse’s office. 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, 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.
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.
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2.2. Which values are normal?
Blood pressure is too 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
due to continual damage to the blood vessels in you body.
If your systolic blood pressure values are between 140 mmHg and 160mmHg and/or
the diastolic blood pressure values between 90 mmHg and 95mmHg, consult your
physician. Regular self-checks are 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 physi-
Never use the results of your measurements to independently alter the
cian.
drug doses prescribed by your physician.
Which values are normal?
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
(mmHg) (mmHg)
Normal <120 <80
Self-Check
Pre-Hypertension 120 - 139 80 - 89
Stage 1 140 - 159 90 - 99
Hypertension
Stage 2 >160 >100
Hypertension
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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 pres-
sure. 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.
• 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).
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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.
2.4. Irregular Heartbeat Detector
The appearance of this symbol signifies that a certain irregular heartbeat
was detected which could cause or indicate cardiovascular disease. This indicator
is only a caution. The Microlife Fully Automatic Blood Pressure Monitor with
Irregular Heartbeat Detector can detect blood pressure and pulse rate measurement with specifications even when the patient is having an irregular heartbeat.
It is important that you be relaxed, remain still and do not talk during the measurements.
Note: We recommend contacting your physician if you see this “ “ icon frequently.
CAUTION: An irregular heartbeat can be a serious condition requiring
medical attention. See your doctor if you suspect you have an irregular heartbeat.
2.5. MAM Technology
Microlife Average Mode (MAM) Technology is a new function for optimum reliability in self measurement of blood pressure. A single measurement is rarely your real result. An average of three readings
is medically proven to provide the most accurate result. With the push of a single button, the
Microlife Average Mode blood pressure monitor takes three consecutive measurements, and calculates the average.
3. Components of your blood pressure monitor
a) Measuring unit
Time/Date Button
Single Mode/
Average Mode (MAM)
Cuff jacket
Socket
5
Memory
Button
On/Off/Start Button
(Software and cable may
USB Port
be sold separately)
AC Adapter
Port
b) Upper arm cuffs:
Type S101 for arm circumference 24–33.7 cm or
9.5” - 13.25” (included)
Type S102 for arm circumference 30.5 - 40.64 cm
12” - 16” (order as a special accessory)
Please Note:
Arm circumference should be measured with a measuring tape in the middle of the relaxed
upper arm. 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. You may prefer to use one of our wrist type monitors.
4. Operation of your blood pressure monitor
4.1. Inserting the batteries
Insert batteries immediately after unpacking the unit. The
battery compartment is located on the back of the device
(see illustration).
a) Remove cover as illustrated
b) Insert the batteries (4 x size AA 1,5V),
observing the indicated polarity.
c) If a battery warning appears in the display,
the batteries are discharged and must be replaced.
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4.2. Using an AC power adapter (special accessory)
It is possible to operate this blood pressure instrument with an AC adapter. (output 6 V DC
/ 600 mA with DIN plug). Make certain that you use an adapter which fulfills the legal
requirements and electronic requirements in the U.S. (UL standard). Use of an AC adapter
other than a Microlife adapter may invalidate your warranty.
a) Push the plug into the socket on the back of
the monitor.
b) Plug the AC adapter 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 adapter is connected to the instrument.
• If the power is interrupted during a measurement (e.g. by removal of the adapter from
the wall socket), the instrument must be reset by removing the plug from the instrument.
• Please call 1-800-568-4147 if you have questions
relating to the AC adapter.
4.3. Tube connection
Insert the cuff tube into the opening
on the side of the monitor,
as shown in the diagram.
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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! Conditions should always be quiet.
•All efforts by the user to support the arm can increase 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 for support if necessary.
•If the arm artery lies considerably lower or higher than the heart, an erroneously high or
low blood pressure will be measured! Each 15cm (6 inch) difference in height between
your heart and the cuff results in a measurement error of 10 mmHg!
•Cuffs that are too narrow or too short result in false measurement values. Selecting the
correct cuff is extremely important. Cuff size is dependent upon the circumference of the
arm (measured in the center). The permissible range is printed on the cuff. If this is not
suitable for your use, please contact microlife USA. Large cuff sizes are sold separately.
Note: Only use clinically approved Microlife Cuffs!
•A loose cuff or a sideways protruding air pocket causes false measurement values.
•With repeated measurements, blood accumulates in the arm, which can lead to false
results. Consecutive blood pressure measurements should be repeated after a 1 minute
pause or after your arm has been held up in order to allow the accumulated blood to
flow away.
Please note, clinical studies have proven the Microlife Average Mode (MAM) system with
a 15 second wait period between measurements is a more reliable way to take your blood
pressure. If you decide to retake your MAM measurement again, be sure to wait at least
one minute before repeating a MAM measurement.
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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 outward. (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 small white arrow 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. Cuffs that
don’t fit properly result in false measurement
values. Measure your arm circumference if
you are not sure of proper fit. Larger cuffs are
available (Section 3B).
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.
Left Arm
3
/4”-1”
tube
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Comment:
M
M
M
TIME
If it is not possible to fit the cuff to your left arm, it can also be
placed on your right arm. However, all measurements should be
made using the same arm.
Comparable blood pressure measurements always require the
same conditions (Relax for several minutes before a reading).
Cuff on
right arm
5.4. Setting the time and date
This blood pressure monitor incorporates an integrated clock with date display. Time and
date are recorded along with pressure and pulse. After new batteries have been inserted,
the clock begins to run from the following setting: 2000-01-01 00:00 O’clock.
You must then re-enter the date and current time. Please proceed as follows (Example:
Entering 2002-06-15 Time 09:30 AM):
1. Press the Time button for at least 3 seconds. Release the
button and then press again. The display now indicates the
set year, during which the four characters blink. If you
insert new batteries the year may already be flashing.
2. The correct year can be entered by pressing the MEMORY
button. Once for each change.
(Example: 1 x press).
3. Press the Time button again. The display now switches to
the current date, during which the first character (month)
blinks.
Note: Holding the button down speeds up the procedure.
4. The current month can now be entered by pressing the
MEMORY button.
Example: pressing 6 x advances 6 months)
5. Press the Time button again. The last two characters (day)
are now blinking.
6. The current day can now be entered by pressing the MEM-
ORY button. (Example: 15 x presses advances the day from
the 1st to 15th)
7. Press the Time button again. The display now switches to
the current time, during which the first character (hour)
blinks.
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9. Press the User/Time button again. The last two characters (Minutes) now blink.
1
3
1
3
10. The minutes can now be entered by pressing the MEMORY button. (Example: 30 x
presses advances the time from 0 to 30 minutes)
11. Finally, press the time button once to set.
5.5. Reading the set date
After all settings have been made, click the User/Time button once. The date is briefly displayed and then the time. The input is now confirmed and the clock begins to run.
5.6. Selection of Microlife Average Mode
Clinical studies demonstrate taking multiple blood pressure readings and calculating
an "average” is more likely to determine your true blood pressure. Your Microlife
Average Mode unit allows you to switch the unit to a special Average Mode setting
(MAM) that automatically takes multiple readings!
Average Mode / MAM:
a) If you would like to take an Average Mode
measurement, please slide the switch to the
right toward no. 3.
b) Average Mode takes generally 3 measurements
in succession and calculates the result.
c) A symbol in the display indicates that the
unit is set to the Average Mode.
Single mode:
a) If you would like to take single measurement,
please slide the switch toward no. 1.
b) Single mode only has 1 measurement
5.7. Measuring procedure
After the cuff has been appropriately positioned the
measurement can begin:
a) Press the ON/OFF/START button. The pump
begins to inflate the cuff. In the display, the
increasing cuff pressure is continually displayed..
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Pumping
Pressure
b) After automatically reaching an individual pressure,
the pump stops and the pressure slowly falls. The cuff
pressure is displayed during the measurement.
c) When the device has detected your pulse, the heart
Measuring
symbol in the display begins to blink and a beep tone
is audible for every pulse beat.
d) When the measurement has been concluded, a long
beep tone sounds. The measured systolic and diastolic
blood pressure values, as well as the pulse are now
displayed.
e) The appearance of this symbol signifies that an
irregular heartbeat was detected. This indicator is only
a caution. It is important that you be relaxed, remain
still and do not talk during measurements. NOTE: We
Systolic
Diastolic
recommend contacting your physician if you see this
indicator frequently.
f) The measurement results are displayed until you
switch the device off. If no button is pressed for 5 min-
Pulse
Measurement
complete
utes, the device switches off automatically.
g) When the unit is set to the Microlife Average Mode setting,
3 separate measurements will take place in succession after
which your result is calculated. There is a 15 second resting
time in-between each measurement. A count down indicates the remaining time
and a beep will sound 5 seconds before the 2nd and 3rd readings will begin.
If one of the measurements causes an error message, it will be repeated one more time. If any additional error occurs,
the measurement will be discontinued and error code displayed.
Expanding the MAM measurement to see the three individual readings - This
function allows you to view the three individual measurements used to calculate the MAM measurement. After taking a MAM measurement hold the memory button for 3 seconds until you hear a short beep. (Do not hold the button
longer than 7 seconds or you will delete all the readings in the memory.) Let go
of the button and watch the screen. It will automatically scroll through the three
measurements used in the MAM measurement.
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5.8. Memory – displaying the last 99 measurements
MR
The measured results are stored in the instrument until a new
measurement is carried out. With the unit in the OFF position,
press and hold the MEMORY button for at least 3-seconds. The
screen will first show the average of all readings in memory (icon
shown is “A”) followed by the most recent readings along with time
and date. The MR symbol is displayed in the lower left. Release the
button.The last reading will be displayed. Each time you press the
Last
reading
memory button an earlier measurement will be displayed along with
time and date. If an irregular heartbeat interval was detected in any
measurements stored in memory, the icon will be displayed.
14 readings
in memory
14
MR
Before you delete all readings stored in the memory, make sure you will not need refer
to the readings at a later date. Keeping a written record is prudent and may provide
additional information for your doctor’s visit.
In order to delete all stored readings, depress the MEMORY button for at least 7 seconds, the display will show the symbol " CL” and 3 short beep sounds will be heard to
indicate deletion of stored readings.
5.9. Discontinuing a measurement
If it is necessary to interrupt a blood pressure measurement for any reason
(e.g the patient feels unwell), the ON/OFF button can be pressed at any time.
The device then immediately lowers the cuff pressure automatically.
6. Blood Pressure Analyzer Software
Included with ID #3AC1-PC, 3AC1-PCCOS, optional accessory for 3AC1-AP. Call microlife at 1-800-568-4147 or visit microlife at
www.microlifeusa.com to order)
This unit can be used in connection with your personal computer (PC) running the
Microlife Blood Pressure Analyzer (BPA) software. Your PC will allow a capacity of
monitoring 80 patients, each with 1000 data (note: overuse will lower system
efficiency).The memory data can be
transferred to the PC by connecting the
monitor via cable with the PC.
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