microlife BP A150 AFIB Blood Pressure Monitor Instruction Manual

June 6, 2024
microlife

Microlife BP A150 AFIB

Guarantee Card
BP A150 AFIB

Name of Purchaser:——————————————
Serial Number:———————————————–
Date of Purchase:———————————————
Specialist Dealer:———————————————

1. ON/OFF button
2. M-button (memory)
3. Display
4. Cuff Socket
5. Time Button
6. Cuff
7. Cuff Connector
8. Mains Adapter Socket
9. Battery Compartment
10. AFIB/MAM Switch| Display
11.  Date/Time
12. Systolic Value
13. Diastolic Value
14.  Pulse Rate
15.  AFIB/MAM Mode
16. MAM Interval Time
17.  Battery Display
18. Stored Value
19.  Pulse Indicator
20. Atrial Fibrillation Indicator (AFIB)
21.  Arm Movement Indicator
22. Cuff Check Indicator
23. Traffic Light Indicator
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Read the instructions carefully before using this device.
Type BF applied part
Keep dry

Intended use:
This oscillometric blood pressure monitor is intended for measuring non- invasive blood pressure in people aged 12 years or older.
It is clinically validated in patients with hypertension, hypotension, diabetes, pregnancy, pre-eclampsia, atherosclerosis, end-stage renal disease, obesity and the elderly.
The device can detect an irregular pulse suggestive of Atrial Fibrillation (AF). Please note that the device is not intended to diagnose AF. A diagnosis
of AF can only be confirmed by ECG. The patient is advised to see a physician.
Dear Customer,
This device was developed in collaboration with physicians and clinical tests were carried out to prove its measurement accuracy to be of a very high standard.*
Microlife AFIB detection is the world’s leading digital blood pressure measurement technology for the detection of atrial fibrillation (AF) and arterial hypertension. These are the two top risk factors of getting a stroke or heart disease. It is important to detect AF and hypertension at an early stage, even though you may not experience any symptoms. AF screening in general and thus also with the Microlife AFIB algorithm is recommended for
people of 65 years and older. The AFIB algorithm indicates that atrial fibrillation may be present.  For this reason, it is recommended that you visit
your doctor when the device gives an AFIB signal during your blood pressure measurement. The AFIB algorithm of Microlife has been clinically investigated by several prominent clinical investigators and showed that the device detects patients with AFIB at a certainty of 97-100%. 1,2
If you have any questions, problems or want to order spare parts please contact your local Microlife-Customer Service. Your dealer or pharmacy will be able to give you the address of the Microlife dealer in your country. Alternatively, visit the internet at www.microlife.com where you will find a wealth of invaluable information on our products. Stay healthy – Microlife AG!

  • This device uses the same measuring technology as the award-winning «BP 3BTO-A» model tested according to the British and Irish Hypertension Society (BIHS) protocol.
    ¹Kearley K, Selwood M, Van den Bruel A, Thompson M, Mant D, Hobbs FR, et al.: Triage tests for identifying atrial fibrillation in primary care: a diagnostic accuracy study comparing single-lead ECG and modified BP monitors. BMJ Open 2014; 4:e004565.
    ²Wiesel J, Arbesfeld B, Schechter D: Comparison of the Microlife blood pressure monitor with the Omron blood pressure monitor for detecting atrial fibrillation. Am J Cardiol 2014; 114:1046-1048.

Table of Contents

  1. Important Facts about Blood Pressure and Self-Measurement
    •How do I evaluate my blood pressure?

  2. Important Facts about Atrial Fibrillation (AF)
    • What is Atrial Fibrillation (AF)?
    •Who should be screened for Atrial Fibrillation?
    •Microlife AFIB detection provides a convenient way to screen for AF (only in AFIB/MAM mode)
    •Risk factors you can control

  3. Using the Device for the First Time
    •Inserting the batteries
    •Setting the date and time
    •Selecting the correct cuff
    •Selecting standard or AFIB/MAM mode
    •AFIB/MAM mode

  4. Taking a Blood Pressure Measurement
    •How not to store a reading

  5. The appearance of the Atrial Fibrillation Indicator for early
    Detection (Active only in AFIB/MAM mode)

  6. Traffic Light Indicator in the Display

  7. Data Memory
    •Viewing the stored values
    •Memory full
    •Clearing all values

  8. Battery Indicator and Battery change
    •Low battery
    •Flat battery – replacement
    •Which batteries and which procedure?
    •Using rechargeable batteries

  9. Using a Mains Adapter

  10. Error Messages

  11. Safety, Care, Accuracy Test, and Disposal
    •Safety and protection
    •Device care
    •Cleaning the cuff
    •Accuracy test
    •Disposal

  12. Guarantee

  13. Technical Specifications
    Guarantee Card (see Back Cover)

Important Facts about Blood Pressure and SelfMeasurement

  • Blood pressure is the pressure of the blood flowing in the arteries generated by the pumping of the heart. Two values, the systolic (upper) value, and the diastolic (lower) value, are always measured.
  • The device indicates the pulse rate (the number of times the heart beats in a minute).
  • Permanently high blood pressure values can damage your health and must be treated by your doctor!
  • Always discuss your values with your doctor and tell him/her if you have noticed anything unusual or feel unsure. Never rely on single blood pressure readings.
  • There are several causes of excessively high blood pressure Your doctor will explain them in more detail and offer treatment where appropriate. Besides medication, weight loss and exercise can also lower your blood pressure.
  • Under no circumstances should you alter the dosages of drugs or initiate treatment without consulting your doctor.
  • Depending on physical exertion and condition, blood pressure is subject to wide fluctuations as the day progresses. You should therefore take your measurements in the same quiet conditions and when you feel relaxed! Take at least two readings every time (in the morning and in the evening) and average the measurements.
  • It is quite normal for two measurements taken in quick succes­sion to produce significantly different results. Therefore we recommend using the MAM technology.
  • Deviations between measurements taken by your doctor or in the pharmacy and those taken at home are quite normal, as these situations are completely different.
  • Several measurements provide much more reliable information about your blood pressure than just one single measurement. Therefore we recommend using the MAM technology.
  • Leave a small break of at least 15 seconds between two measurements t
  • If you suffer from an irregular heartbeat, measurements taken with this device should be evaluated with your doctor.
  • The pulse display is not suitable for checking the frequency of heart pacemakers!
  • If you are pregnant, you should monitor your blood pressure regularly as it can change drastically during this time.
    This monitor is specially tested for use in pregnancy and pre-eclampsia. When you detect unusual high readings in pregnancy, you should measure after a short while again (eg. 1 hour). If the reading is still too high, consult your doctor or gynecologist.
    In pregnancy, the AFIB symbol can be ignored.

How do I evaluate my blood pressure?
Table for classifying home blood pressure values in adults in accordance with the international Guidelines (ESH, ESC, JSH).
Data in mmHg.

Range Systolic Diastolic Recommendation
1. blood pressure normal < 120 < 74
2. blood pressure optimum 120 – 129 74 – 79
3. blood pressure elevated 130 – 134 80 – 84
4. blood pressure too high 135 – 159 85 – 99
5. blood pressure dangerously high > 160 > 100

advice!

The higher value is the one that determines the evaluation.
Example: a blood pressure value of 140/80 mmHg or a value of 130/90 mmHg indicates «blood pressure too high».

Important Facts about Atrial Fibrillation (AF)

What is Atrial Fibrillation (AF)?

Normally, your heart contracts and relaxes to a regular beat.
Certain cells in your heart produce electrical signals that cause the heart to contract and pump blood. Atrial fibrillation occurs when rapid, disorganized electrical signals are present in the heart’s two upper chambers, called the atria; causing them to contract irregularly (this is called fibrillation). Atrial
fibrillation is the most common form of heart arrhythmia. It often causes no symptoms, yet it significantly increases your risk of stroke. You’ll need a
doctor to help you control the problem.

Who should be screened for Atrial Fibrillation?
AF screening is recommended for people over 65 years of age, since the chance of having a stroke increases with age. AF screening is also recommended for people from the age of 50 years who have high blood pressure (e.g. SYS higher than 159 or DIA higher than 99) as well as those with diabetes, coronary heart failure or for those who have previously had a stroke.
In young people or in pregnancy AF screening is not recommended as it could generate false results and unnecessary anxiety. In addition, young individuals with AF have a low risk of getting a stroke as compared to elder people. For more information visit our website: www.microlife.com/afib.
Microlife AFIB detection provides a convenient way to screen for AF (only in AFIB/MAM mode)
Knowing your blood pressure and knowing whether you or your family members have AF can help reduce the risk of stroke. Microlife AFIB detection provides a convenient way to screen for AF whilst taking your blood pressure.
Risk factors you can control
Early diagnosis of AF followed by adequate treatment can significantly reduce the risk of getting a stroke. Knowing your blood pressure and knowing whether you have AF is the first step in proactive stroke prevention.

Using the Device for the First Time

Inserting the batteries
After you have unpacked your device, first insert the batteries. Battery compartment 9 is on the bottom of the device. Insert the batteries (4 x 1.5 V, size AA), thereby observing the indicated polarity.
Setting the date and time

  1. After the new batteries are fitted, the year number flashes in the display. You can set the year by pressing the M-button 2. To confirm and then set the month, press the time button 5.
  2. Press the M-button to set the month. Press the time button to confirm and then set the day.
  3. Follow the instructions above to set the day, hour, and minutes.
  4. Once you have set the minutes and pressed the time button, the date and time are set and the time is displayed.
  5. If you want to change the date and time, press and hold the time button down for approx. 3 seconds until the year number starts to flash. Now you can enter the new values as described above.

Selecting the correct cuff
Microlife offers different cuff sizes. Select the cuff size to match the circumference of your upper arms (measured by close-fitting in the center of the upper arm).

Cuff size for the circumference of the upper arm
S 17- 22 cm
M 22- 32 cm
M – L 22- 42 cm
L 32- 42 cm
L – XL 32- 52 cm

Pre-shaped cuffs are optionally available.
Only use Microlife cuffs.
Contact your local Microlife Service if the enclosed cuff 6 does not fit.
Connect the cuff to the device by inserting the cuff connector 7 into the cuff socket 4 as far as it will go.

Selecting standard or AFIB/MAM mode
This device enables you to select either standard (standard single measurement) or AFIB/MAM mode (automatic triple measurement).
To select standard mode, slide the AFIB/MAM switch AT on the side of the device downwards to position «1» and to select AFIB/MAM mode, slide
this switch upwards to position «3».
AFIB/MAM mode
In AFIB/MAM mode, 3 measurements are automatically taken in succession and the result is then automatically analysed and displayed. Because blood pressure constantly fluctuates, a result determined in this way is more reliable than one produced by a single measurement. AF detection is only
activated in AFIB/MAM mode.

  • After pressing the ON/OFF button 1 , the MAM symbol 15 appears in the display.

  • The bottom, right-hand section of the display shows a 1, 2, or 3 to indicate which of the 3 measurements is currently being taken.

  • There is a break of 15 seconds between the measurements.
    A count down indicates the remaining time.

  • The individual results are not displayed. Your blood pressure will only be displayed after all 3 measurements are taken.

  • Do not remove the cuff between measurements.

  • If one of the individual measurements was questionable, a fourth one is automatically taken.

Taking a Blood Pressure Measurement

Checklist for taking a reliable measurement

  1. Avoid activity, eating, or smoking immediately before the measurement.

  2. Sit down on a back-supported chair and relax for 5 minutes. Keep the feet flat on the floor and do not cross your legs.

  3. Always measure on the same arm (normally left). It is recommended that doctors perform double-arm measurements on a patient’s first visit in order to determine which arm to measure in the future. The arm with the higher blood pressure should be measured.

  4. Remove close-fitting garments from the upper arm. To avoid constriction, shirt sleeves should not be rolled up – they do not interfere with the cuff if they are laid flat.

  5. Always ensure that the correct cuff size is used (marking on the cuff).
    • Fit the cuff closely, but not too tight.
    • Make sure that the cuff is positioned 1-2 cm above the elbow.
    • The artery mark on the cuff (ca. 3 cm long bar) must lie over the artery which runs down the inner side of the arm.
    • Support your arm so it is relaxed.
    • Ensure that the cuff is at the same height as your heart.

  6. Press the ON/OFF button 1 to start the measurement.

  7. The cuff will now pump up automatically. Relax, do not move, and do not tense your arm muscles until the measurement result is displayed. Breathe normally and do not talk.

  8. When the correct pressure is reached, the pumping stops and the pressure falls gradually. If the required pressure was not reached, the device will automatically pump some more air into the cuff.

  9. During the measurement, the pulse indicator 19 flashes in the display.

  10. The result, comprising the systolic 12 and the diastolic 13 blood pressure and the pulse rate 14 is displayed. Note also the explanations on further display symbols in this booklet.

  11. When the device has finished measuring, remove the cuff.

  12. Switch off the device. (The monitor does switch off automatically after approx. 1 min.).

How not to store a reading
As soon as the reading is displayed press and hold the ON/OFF button 1 until «M» AR is flashing. Confirm to delete the reading by pressing the M-button 2.
You can stop the measurement at any time by pressing the ON/OFF button (e.g. if you feel uneasy or an unpleasant pressure sensation).
If the systolic blood pressure is known to be very high, it can be an advantage to set the pressure individually. Press the ON/OFF button after the monitor has been pumped up to a level of approx. 30 mmHg (shown on the display). Keep the button pressed until the pressure is about 40 mmHg above the expected systolic value – then release the button.

The appearance of the Atrial Fibrillation Indicator for Early Detection

(Active only in AFIB/MAM mode)

This device is able to detect atrial fibrillation (AF). This symbol 20 indicates that atrial fibrillation was detected during the measurement. Please
refer to the next paragraph for information regarding the consultation with your doctor.
Information for the doctor on frequent appearance of the atrial fibrillation indicator
This device is an oscillometric blood pressure monitor that also analyses pulse irregularity during measurement. The device is clinically tested. The AFIB symbol is displayed after the measurement if atrial fibrillation occurred during the measuring. If the AFIB symbol appears after having performed a full blood pressure measurement episode (triplicate measurements), the patient is advised to perform another measurement episode (triplicate measurements). If the AFIB symbol appears again, we recommend the patient seek medical advice. If the AFIB symbol appears on the screen of the blood pressure monitor, it indicates the possible presence of atrial fibrillation. The atrial fibrillation diagnosis, however, must be made by a cardio l ogist based on ECG interpretation.

In the presence of atrial fibrillation, the diastolic blood pressure value may not be accurate.
Keep the arm still during measuring to avoid false readings.
This device may not or wrongly detect atrial fibrillation in people with pacemakers or defibrillators.

Traffic Light Indicator in the Display

The bars on the left-hand edge of the display BM show you the range within which the indicated blood pressure value lies.
Depending on the height of the bar, the readout value is either within the optimum (green), elevated (yellow), too high (orange) or dangerously high (red) range. The classification corresponds to the 4 ranges in the table as defined by the international guidelines (ESH, ESC, JSH), as described in «Section 1.».

Data Memory

This device automatically stores the last 30 measurement values.
Viewing the stored values
Press the M-button 2 briefly, when the device is switched off. The display first shows «M» 18 and then a value, e.g. «M 17». This means that there are 17 values in the memory. The device then switches to the last stored result.
Pressing the M-button again displays the previous value. Pressing the M-button repeatedly enables you to move from one stored value to another.

Memory full
Pay attention that the maximum memory capacity of 30 memories is not exceeded. When the 30 memory is full, the oldest value is automatically overwritten with the 31st value. Values should be evaluated by a doctor before the memory capacity is reached – otherwise data will be lost.

Clearing all values
If you are sure that you want to permanently remove all stored values, hold down the M-button (the device must have been switched off beforehand) until «CL» appears and then release the button. To permanently clear the memory, press the M-button while «CL» is flashing. Individual values cannot be cleared.

Battery Indicator and Battery change

Low battery
When the batteries are approximately ¾ empty the battery symbol 17 will flash as soon as the device is switched on (partly filled battery displayed). Although the device will continue to measure reliably, you should obtain replacement batteries.

Flat battery – replacement
When the batteries are flat, the battery symbol AQ will flash as soon as the device is switched on (flat battery displayed). You cannot take any further measurements and must replace the batteries.

  1. Open the battery compartment 9 at the back of the device.
  2. Replace the batteries – ensure correct polarity as shown by the symbols in the compartment.
  3. To set a date and time, follow the procedure described in «Section 3.».
    The memory retains all values although date and time must be reset – the year number, therefore, flashes automatically after the batteries are replaced.

Which batteries and which procedure?
Use 4 new, long-life 1.5 V, size AA alkaline batteries.
Do not use batteries beyond their date of expiry.
Remove batteries if the device is not going to be used for a prolonged period.
Using rechargeable batteries
You can also operate this device using rechargeable batteries.
Only use «NiMH» type reusable batteries.
Batteries must be removed and recharged when the flat battery symbol appears. They should not remain inside the device as they may become damaged (total discharge as a result of low use of the device, even when switched off).
Always remove the rechargeable batteries if you do not intend to use the device for a week or more.
Batteries cannot be charged in the blood pressure monitor.
Recharge batteries in an external charger and observe the information regarding charging, care, and durability.

Using a Mains Adapter

You can operate this device using the Microlife mains adapter (DC 6V, 600 mA).
Only use the Microlife mains adapter available as an original accessory appropriate for your supply voltage.
Ensure that neither the mains adapter nor the cable is damaged.

  1. Plug the adapter cable into the mains adapter socket 8 in the blood pressure monitor.
  2. Plug the adapter plug into the wall socket.
    When the mains adapter is connected, no battery current is consumed.

 Error Messages

If an error occurs during the measurement, the measurement is interrupted and an error message, e.g. «ERR 3», is displayed.

Error Description Potential cause and remedy
«ERR Signal too weak The pulse signals on the cuff are too weak. Re-

position the cuff and repeat the measurement.
«ERR 2» C-_)| Error signal| During the measurement, error signals were detected by the cuff, caused for instance by movement or muscle tension. Repeat the measurement, keeping your arm still.
«ERR 3» ®| No pressure in the cuff| An adequate pressure cannot be generated in the cuff. A leak may have occurred. Check that the cuff is correctly connected and is not too loose. Replace the batteries if necessary. Repeat the measurement.
«ERR 5»| Abnormal result| The measuring signals are inaccurate and no result can therefore be displayed. Read through the checklist for performing reliable measurements and then repeat the measurement.

«HI»| Pulse or cuff pressure too high| The pressure in the cuff is too high (over 299 mmHg) OR the pulse is too high (over 200 beats per minute). Relax for 5 minutes and repeat the measurement.
«LO»| Pulse too low| The pulse is too low (less than 40 beats per minute). Repeat the measurement.

  • Please immediately consult your doctor, if this or any other problem occurs repeatedly.
    If you think the results are unusual, please read through the information in «Section 1.» carefully.

 Safety, Care, Accuracy Test, and Disposal

Safety and protection

  • Follow instructions for use. This document provides important product operation and safety information regarding this device.
    Please read this document thoroughly before using the device and keep for future reference.

  • This device may only be used for the purposes described in these instructions. The manufacturer cannot be held liable for damage caused by the incorrect application.

  • This device comprises sensitive components and must be treated with caution. Observe the storage and operating conditions described in the «Technical Specifications» section.

  • Protect it from:
    – water and moisture
    – extreme temperatures
    -impact and dropping
    – contamination and dust
    – direct sunlight
    – heat and cold

  • The cuffs are sensitive and must be handled with care.

  • Do not exchange or use any other kind of cuff or cuff connector for measuring with this device.

  • Only pump up the cuff once fitted.

  • Do not use this device close to strong electromagnetic fields such as mobile telephones or radio installations. Keep a minimum distance of 3.3 m from such devices when using this device.

  • Do not use this device if you think it is damaged or notice anything unusual.

  • Never open this device.

  • If the device is not going to be used for a prolonged period the
    batteries should be removed.

  •  Read the additional safety information provided within the individual sections of this instruction manual.

  • The measurement results given by this device are not a diagnosis.
    It is not replacing the need for the consultation of a physician, especially if not match the patient’s symptoms. Do not rely on the measurement result only, always consider other potentially occurring symptoms and the patient’s feedback. Calling a doctor or an ambulance is advised if needed.

Ensure that children do not use this device unsupervised; some parts are small enough to be swallowed. Be aware of the risk of strangulation in case this device is supplied with cables or tubes.

Device care
Clean the device only with a soft, dry cloth.
Cleaning the cuff
Carefully remove spots on the cuff with a damp cloth and soapsuds.
WARNING: Do not wash the cuff in a washing machine or dishwasher!
WARNING: Do not dry the cuff cover in a tumble dryer!
WARNING: Under no circumstances may you wash the inner bladder!

Accuracy test
We recommend this device is tested for accuracy every 2 years or after mechanical impact (e.g. being dropped). Please contact your local Microlife- Service to arrange the test (see foreword).

Disposal
Batteries and electronic devices must be disposed of in accordance with the locally applicable regulations, not with domestic waste.

Guarantee

This device is covered by a 5-year guarantee from the date of purchase. During this guarantee period, at our discretion, Microlife will repair or replace the defective product free of charge.
Opening or altering the device invalidates the guarantee.
The following items are excluded from the guarantee:

  • Transport costs and risks of transport.
  •  Damage caused by incorrect application or non-compliance with the instructions for use.
  •  Damage caused by leaking batteries.
  •  Damage caused by accident or misuse.
  • Packaging/storage material and instructions for use.
  • Regular checks and maintenance (calibration).
  • Accessories and wearing parts: Batteries, power adapter (optional).

The cuff is covered by a functional guarantee (bladder tightness) for 2 years.
Should guarantee service to be required, please contact the dealer from where the product was purchased or your local Microlife service. You may contact your local Microlife service through our

website: www.microlife.com/support
Compensation is limited to the value of the product. The guarantee will be granted if the complete product is returned with the original invoice. Repair or replacement within the guarantee does not prolong or renew the guarantee period. The legal claims and rights of consumers are not limited by this guarantee.

 Technical Specifications

Operating conditions:| 10 – 40 °C / 50 – 104 °F
15 – 95 % relative maximum humidity
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Storage conditions:| -20 – +55 °C / -4 – +131 °F
15 – 95 % relative maximum humidity
Weight:| 368 g (including batteries)
Dimensions:| 143 x 85 x 58 mm
Measuring procedure:| oscillometric, corresponding to Korotkoff
method: Phase I systolic, Phase V diastolic
Measurement range:| 20 – 280 mmHg – blood pressure
40 – 200 beats per minute – pulse
Cuff pressure display range:| 0 – 299 mmHg
Resolution:| 1 mmHg
Static accuracy:| pressure within ± 3 mmHg
Pulse accuracy:| ± 5 % of the readout value
Voltage source:| 4 x 1.5 V alkaline batteries; size AA
Mains adapter DC 6V, 600 mA (optional)
Battery lifetime:| approx. 920 measurements (using new batteries)
IP Class:| IP20
Reference to standards:| EN 1060-1 /-3 /-4; IEC 60601-1;
IEC 60601-1-2 (EMC); IEC 60601-1-11
Expected service life:| Device: 5 years or 10000 measurements Accessories: 2 years
Microlife AG
Espenstrasse 139
9443 Widnau / Switzerland
www.microlife.com| EC REP
Microlife UAB
P. Lukšio g. 32, 08222 Vilnius
Lithuania
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IB BP A150-30 AFIB E-V10 1621
Revision Date: 2021-03-25

References

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