Microlife BP A90 Blood Pressure Monitor User Manual

The Microlife BP A90 is an automatic upper-arm blood pressure monitor featuring Microlife's patented AFIB detection technology, which can screen for atrial fibrillation during measurement. It includes a large, easy-to-read display with backlight, one-touch operation, memory storage for multiple users, irregular heartbeat detection, WHO classification indicator, and a comfortable D-ring cuff. Below are key sections for safety, features, setup, measurement, memory, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Information 3. Package Contents 4. Device Overview 5. Initial Setup & Battery Installation 6. Applying the Cuff 7. Taking a Measurement 8. Understanding the Results 9. Memory Function 10. Care & Maintenance 11. Troubleshooting

Features at a Glance

Key components: Main unit with display, D-ring arm cuff, 4x AA batteries, instruction manual, and storage case.

Feature	Description
AFIB Detection	Patented technology screens for possible atrial fibrillation during measurement.
One-Touch Operation	Simple START/STOP button for easy use.
Large LCD Display	Clear, backlit display for easy reading in all light conditions.
WHO Classification Indicator	Color-coded bar graph shows if your reading is optimal, normal, or high.
Memory Function	Stores readings for multiple users (e.g., 2 x 60 memories).
Irregular Heartbeat Detection	Detects and displays an icon if an irregular heartbeat is detected.
Comfortable D-Ring Cuff	Pre-formed cuff (22-42 cm) for easy self-application.
Automatic Power Off	Conserves battery life by turning off after a period of inactivity.

Safety Information

Read all instructions before use. This device is for personal home use only, not for professional medical diagnosis.

Do not use the monitor on infants, children, or persons who cannot express themselves.
Do not use the monitor on an arm with an intravenous drip or surgical wound.
Do not inflate the cuff when it is not wrapped around your arm.
Use only the specified cuff and power adapter (if applicable).

WARNING! The AFIB detection is a screening tool, not a diagnosis. Consult a physician if the AFIB symbol appears frequently.

Package Contents

Unpack and verify all items are present.

Microlife BP A90 Blood Pressure Monitor (main unit)
D-Ring Arm Cuff (22-42 cm)
4 x AA Batteries
Instruction Manual
Storage Case

CAUTION! Do not use if any part of the package appears damaged.

Device Overview

Familiarize yourself with the main unit and display symbols.

Part/Symbol	Function
START/STOP Button	Starts and stops the measurement.
M (Memory) Button	Recalls stored measurements.
User Button (1/2)	Selects user memory profile.
Date/Time Display	Shows current date and time.
Systolic/Diastolic Display	Shows blood pressure values (e.g., 120/80 mmHg).
Pulse Display	Shows heart rate (pulses per minute).
AFIB Symbol	Lights if atrial fibrillation is suspected.
Irregular Heartbeat Symbol	Lights if an irregular heartbeat is detected.
WHO Bar Graph	Color-coded indicator of blood pressure category.
Battery Indicator	Shows remaining battery power.

Initial Setup & Battery Installation

Before first use, install batteries and set the date/time.

Open the battery compartment on the back of the device.
Insert 4 AA batteries, observing the correct polarity (+/-).
Close the compartment. The device will turn on briefly.
To set date/time: Press and hold the M button for 3 seconds. Use the START/STOP button to adjust values and the User button to move between settings.

Tip: Use new, alkaline batteries for best performance and longest life.

Applying the Cuff

Correct cuff placement is essential for an accurate reading.

Sit comfortably with your back supported and feet flat on the floor.
Bare your left arm. Slide your arm through the D-ring loop.
Position the cuff so the artery marker (▼) is over your brachial artery on the inside of your arm.
The lower edge of the cuff should be 2-3 cm above your elbow.
Pull the end of the cuff tight and secure it with the fabric closure.
Ensure the cuff is snug but not too tight (you should be able to fit one finger underneath).

WARNING! Do not apply the cuff over clothing. Rest for 5 minutes before measuring.

Taking a Measurement

Follow these steps for a reliable measurement.

Select your user memory profile (User 1 or 2) using the User button.
Sit still with the cuff applied correctly. Rest your arm on a table so the cuff is at heart level.
Press the START/STOP button. The cuff will inflate automatically.
Remain still and quiet until the measurement is complete and the cuff deflates.
Your systolic, diastolic pressure, and pulse rate will be displayed.
The reading is automatically saved to the selected user's memory.

CAUTION! Do not move or talk during measurement, as this can affect the result.

Understanding the Results

Interpret the values and symbols on the display.

Systolic/Diastolic: Your blood pressure (e.g., 120/80 mmHg).
Pulse: Your heart rate in beats per minute.
WHO Bar Graph: Green (Optimal), Yellow (Normal), Orange/Red (High).
AFIB Symbol: Appears if the monitor detects a pulse pattern consistent with possible atrial fibrillation. Consult your doctor.
Irregular Heartbeat Symbol: Appears if occasional irregular beats are detected during measurement.
Error Codes (e.g., E1, E2): Indicate a problem with the measurement or device. See Troubleshooting.

Memory Function

The monitor stores readings for later review.

To recall memory: Press the M button. The display will show the average of the last 3 readings for the selected user.
Press the M button again to scroll through individual stored readings with date and time.
To clear all memory for a user: While in memory mode for that user, press and hold the M button for 5 seconds until "CLr" appears.

Note: Memory capacity may vary (e.g., 60 readings per user).

Care & Maintenance

Proper care ensures long device life and accurate readings.

Clean the monitor and cuff with a soft, slightly damp cloth. Do not immerse in water.
Do not use alcohol, benzene, or abrasive cleaners.
Store the device in the provided case in a cool, dry place away from direct sunlight.
Remove batteries if the device will not be used for an extended period (3 months or more).
Replace the cuff if it becomes damaged or develops cracks.

CAUTION! Do not disassemble or attempt to repair the monitor yourself.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Display is blank	Dead batteries	Replace all 4 AA batteries.
Error Code E1	Cuff not attached or leaking	Check cuff connection. Ensure cuff is applied snugly.
Error Code E2	Measurement error	Remain still and retake measurement. Check cuff position.
Inconsistent readings	Incorrect posture/cuff position	Ensure proper sitting posture and cuff at heart level. Rest before measuring.
AFIB symbol appears	Possible atrial fibrillation detected	Consult your physician with your readings. This is a screening tool, not a diagnosis.
Device does not turn on	Batteries inserted incorrectly	Check battery polarity and contacts. Use new batteries.

Service: For technical support or service, contact Microlife customer service or visit www.microlife.com. Do not use if damaged.