Microlife BP 3AX1 Blood Pressure Monitor User Manual

The Microlife BP 3AX1 is a fully automatic upper arm blood pressure monitor with clinically validated accuracy, featuring the patented AFIB (Atrial Fibrillation) detection technology, large LCD display with backlight, memory storage for multiple users, adjustable cuff, irregular heartbeat detection, WHO classification indicator, date/time display, and automatic power-off. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Main unit with LCD display, Adjustable arm cuff, Air tube, 4x AA batteries, Storage case, Instruction manual.

Safety Precautions

Read all instructions before use. Consult your physician for proper blood pressure monitoring.

1. Do not use on infants, small children, or persons unable to express themselves.
2. Do not use during dialysis or if you have pre-eclampsia (consult physician).
3. Do not wrap cuff over clothing or apply to injured arm.
4. Wait at least 5 minutes between measurements on the same person.
5. Do not use near flammable gases or in oxygen-rich environments.

WARNING! This device is not a substitute for professional medical diagnosis. Always consult your physician about your blood pressure readings.

Device Components

Main unit with display, adjustable arm cuff, air tube, 4x AA batteries, storage case, instruction manual.

1. Main Unit: Contains LCD display, control buttons, and air pump system.
2. Arm Cuff: Adjustable fabric cuff with Velcro closure and air bladder.
3. Air Tube: Connects cuff to main unit (permanently attached to cuff).
4. START/STOP Button: Initiates and stops measurements.
5. MEMORY Button: Accesses stored readings and user settings.
6. SET Button: Sets date, time, and user information.
7. Battery Compartment: Holds 4x AA batteries on back of unit.

CAUTION! Do not bend or kink the air tube. Keep away from sharp objects.

Specifications

• Measurement Method: Oscillometric, automatic inflation and deflation.
• Measurement Range: Pressure: 0-299 mmHg, Pulse: 40-199 beats/minute.
• Accuracy: Pressure: ±3 mmHg, Pulse: ±5% of reading.
• Memory: 200 readings with date and time for 2 users.
• Cuff Size: 22-42 cm arm circumference.
• Display: LCD with backlight.
• Power Supply: 4x AA batteries or AC adapter (optional).
• Battery Life: Approximately 500 measurements with alkaline batteries.
• Automatic Shut-off: After 1 minute of inactivity.
• Dimensions: 118mm (W) x 105mm (H) x 70mm (D).
• Weight: Approximately 300g (without batteries).

Initial Setup

Before first use: Install batteries, set date/time, and practice cuff application.

1. Install batteries: Open battery compartment, insert 4x AA batteries observing polarity.
2. Set date and time: Press SET button, use arrows to adjust, press SET to confirm.
3. Set user: Press MEMORY to select User 1 or User 2.
4. Practice cuff application: Apply to bare upper arm 1-2 cm above elbow.
5. Test measurement: Sit quietly for 5 minutes, then take first measurement.

Tip: For most accurate results, take measurements at the same time each day.

Taking a Measurement

For accurate readings: Sit quietly for 5 minutes before measuring, avoid caffeine, smoking, and exercise 30 minutes prior.

1. Sit comfortably with back supported and feet flat on floor.
2. Remove tight clothing from upper arm.
3. Apply cuff to bare upper arm with tube positioned over inner arm.
4. Position cuff 1-2 cm above elbow with artery marker over brachial artery.
5. Rest arm on table with cuff at heart level.
6. Press START/STOP button - device will inflate automatically.
7. Remain still and quiet during measurement.
8. Read results on display when measurement completes.
9. Press START/STOP to turn off or wait for auto power-off.

WARNING! Do not move or talk during measurement. Ensure cuff is at heart level.

Memory Function

Stores 200 readings total (100 per user). Access via MEMORY button.

1. View memory: Press MEMORY button to display last reading.
2. Scroll through readings: Press MEMORY repeatedly to view previous readings.
3. View average: Hold MEMORY for 3 seconds to display 7-day morning/evening averages.
4. Clear memory: In memory mode, hold SET for 5 seconds to clear current user's data.
5. Switch users: Press SET while in memory mode to toggle between User 1 and User 2.

Note: Memory is maintained when batteries are replaced if done within 2 minutes.

AFIB Detection

The patented AFIB detection screens for atrial fibrillation during measurement.

1. AFIB symbol appears on display if irregular heartbeat pattern suggestive of AFIB is detected.
2. AFIB detection occurs during normal measurement - no special procedure needed.
3. If AFIB symbol appears: Take 2 more measurements at 1-minute intervals.
4. If AFIB appears in 2 of 3 measurements: Consult your physician with results.
5. AFIB detection does not diagnose atrial fibrillation - physician confirmation required.

Important: AFIB detection is a screening tool only. Always consult your physician for diagnosis.

Care & Maintenance

Clean device regularly and store properly to ensure accuracy and longevity.

1. Clean cuff with mild soap and damp cloth - do not immerse in water.
2. Clean main unit with dry or slightly damp cloth - no liquids directly on device.
3. Store in provided case in cool, dry place away from direct sunlight.
4. Do not expose to extreme temperatures, humidity, or dust.
5. Remove batteries if device will not be used for extended period.
6. Inspect cuff regularly for wear, tears, or leaks.

CAUTION! Do not use alcohol, solvents, or abrasive cleaners. Do not autoclave or sterilize.

Battery Information

Use 4x AA alkaline batteries. Low battery indicator appears when replacement needed.

1. Battery life: Approximately 500 measurements with alkaline batteries.
2. Low battery symbol: Appears on display when batteries need replacement.
3. Replacement: Open battery compartment, remove old batteries, insert new ones observing polarity.
4. Memory retention: Memory preserved if batteries replaced within 2 minutes.
5. Optional AC adapter: Use Microlife-approved adapter only (model AD-10).

WARNING! Do not mix old and new batteries. Do not mix alkaline and rechargeable batteries.

Troubleshooting

Reset: Remove batteries for 5 minutes, then reinsert to reset device.

Service: For service, contact Microlife customer service at 1-800-566-3456 or visit www.microlife.com