Microlife 3MX1-1 Blood Pressure Monitor User Manual

The Microlife 3MX1-1 is an automatic upper arm blood pressure monitor featuring Microlife's patented AFIB (Atrial Fibrillation) detection technology, one-touch operation, Intellisense for comfortable inflation, irregular heartbeat detection, hypertension indicator, large LCD display with backlight, memory storage for multiple users, date and time function, and automatic power-off. Powered by 4 AA batteries or optional AC adapter. Below are key sections for safety, features, preparation, measurement, understanding results, maintenance, and troubleshooting.

Features at a Glance

Key components: Main unit with LCD display, Universal Cuff (22-42 cm), AC adapter port, Battery compartment, START/STOP button, MEMORY button.

Safety Information

Read all instructions before use. For home use only.

1. Do not use on infants, children, or persons unable to express themselves.
2. Do not use during physical activity or immediately after.
3. Consult your physician before use if you have arrhythmia, pre-eclampsia, or other circulatory disorders.
4. Do not use the device on an injured or sore arm.
5. Keep the device and accessories away from children.

WARNING! This device is a screening tool, not a diagnostic device. AFIB detection indicates possible atrial fibrillation; consult your physician for diagnosis.

Package Contents

Unpack and verify all components are present.

• Microlife 3MX1-1 Blood Pressure Monitor (Main Unit)
• Universal Upper Arm Cuff (22-42 cm)
• Instruction Manual (this document)
• Quick Start Guide
• Storage Case
• 4 x AA batteries (for initial use)
• Warranty Card

NOTE: AC adapter is sold separately (Model: MVA-05).

Device Overview

Front: LCD display, START/STOP button. Side: MEMORY button, AC adapter port. Bottom: Battery compartment.

Display Symbols: User 1/2 icon, Systolic pressure, Diastolic pressure, Pulse rate, AFIB symbol, Irregular heartbeat symbol, Hypertension indicator, Date/Time, Battery icon, Memory icon.

Cuff: Marked with artery index (Φ) to align with brachial artery. Tube connector plugs into main unit.

Before First Use

Prepare the device for first measurement.

1. Install batteries: Open battery compartment, insert 4 AA batteries observing polarity.
2. Set date and time: Press and hold MEMORY button for 3 seconds, use START/STOP to adjust.
3. Select user: Briefly press MEMORY button to toggle between User 1 and User 2.
4. Apply cuff correctly: Follow measurement preparation steps.

CAUTION! Use only recommended batteries. Remove batteries if device will not be used for extended periods.

Taking a Measurement

For accurate results, rest for 5 minutes before measuring.

1. Sit correctly: Sit on a chair with back support, feet flat on floor.
2. Apply cuff: Place cuff on bare upper arm. Artery mark (Φ) should align with brachial artery. Cuff edge should be 2-3 cm above elbow.
3. Position arm: Rest arm on table with cuff at heart level.
4. Start measurement: Press START/STOP button. Cuff inflates automatically.
5. Remain still: Do not move or talk during measurement.
6. Read results: Systolic, diastolic, and pulse rate display. AFIB or irregular heartbeat symbols appear if detected.
7. Device deflates and powers off automatically after 1 minute.

Tip: Take measurements at the same time each day for consistent tracking.

Understanding the Display

After measurement, the display shows:

• SYS: Systolic pressure (mmHg).
• DIA: Diastolic pressure (mmHg).
• Pulse: Heart rate (beats per minute).
• AFIB Symbol: Flashes if possible atrial fibrillation detected.
• Irregular Heartbeat Symbol: Appears if irregular pulse is detected during measurement.
• Hypertension Indicator: Color bar shows WHO category (Optimal, Normal, High Normal, Hypertension).
• User Icon: Indicates which user's memory is active (1 or 2).
• Date & Time: When the reading was taken.

WARNING! An AFIB reading requires consultation with a physician. Do not change medication based on home readings alone.

Memory Function

Stores 99 readings for each of 2 users with date and time.

1. View memory: Press MEMORY button briefly to cycle through stored readings.
2. Delete last reading: Press and hold MEMORY button while last reading is displayed.
3. Delete all readings for current user: With device off, press and hold MEMORY button, then press START/STOP while holding MEMORY.
4. Switch user: Briefly press MEMORY button when device is off.

NOTE: Memory is retained when batteries are removed.

Care & Maintenance

Clean only with a soft, dry cloth. Do not immerse in water or use solvents.

1. Cuff care: Wipe with damp cloth if soiled. Do not machine wash or iron.
2. Storage: Keep in provided case in a cool, dry place away from direct sunlight.
3. Batteries: Replace when battery icon appears empty on display.
4. Device accuracy: Have device checked for accuracy every 2 years by authorized service center.

CAUTION! Do not disassemble the device. No user-serviceable parts inside.

Technical Specifications

• Measurement Method: Oscillometric
• Measurement Range: Pressure: 0-299 mmHg, Pulse: 40-199 beats/min
• Accuracy: Pressure: ±3 mmHg, Pulse: ±5% of reading
• Memory: 99 readings x 2 users
• Cuff Size: 22-42 cm arm circumference
• Power Supply: 4 x 1.5V AA batteries or DC 6V 500mA AC adapter (optional)
• Auto Power-off: Approximately 1 minute after measurement
• Operating Conditions: 10°C to 40°C, 15% to 90% relative humidity (non-condensing)
• Dimensions: Approx. 123mm (W) x 98mm (H) x 141mm (D)
• Weight: Approx. 350g (without batteries)

Troubleshooting

Reset: Remove batteries for 1 minute to reset device.

Service: For service, contact Microlife customer support or authorized service center. Do not attempt to repair yourself.