Microlife BP 3BTO-A Blood Pressure Monitor User Manual

The Microlife BP 3BTO-A is an automatic upper arm blood pressure monitor with advanced features for accurate home measurement. It utilizes Microlife's patented AFIB (Atrial Fibrillation) detection technology, has a large memory capacity, features a clinically validated measurement method, and includes a WHO (World Health Organization) indicator for easy interpretation of results. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Main unit with LCD display, Universal Cuff, AC Adapter, Storage Case, and Instruction Manual.

Safety Information

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

1. Do not use on infants, small children, or persons who cannot express themselves.
2. Do not use if you have an arrhythmia (except atrial fibrillation), pre-eclampsia, or arteriovenous shunt.
3. Consult your physician before use if you have severe circulatory disorders or blood diseases.
4. Do not inflate the cuff when it is not wrapped around your arm.
5. Keep the device away from strong electromagnetic fields (e.g., mobile phones, microwave ovens).

WARNING! This device is not a substitute for professional medical advice. Always consult your doctor for diagnosis and treatment.

Package Contents

Unpack and verify all components are present.

• Microlife BP 3BTO-A Monitor (1 unit)
• Universal Wide-Range Cuff (22-42 cm / 8.7-16.5 in) (1 piece)
• AC Adapter (1 unit)
• Storage Case (1 piece)
• Instruction Manual (1 copy)
• Quick Start Guide (1 copy)
• Warranty Card (1 copy)

CAUTION! Do not use if any part is damaged. Contact customer service.

Device Overview

Front Panel: LCD Display, START/STOP Button. Side: AC Adapter Jack. Rear: Battery Compartment, Cuff Socket.

Display Symbols:
1. Systolic Pressure Value
2. Diastolic Pressure Value
3. Pulse Rate
4. WHO Indicator Bar
5. User Indicator (1 or 2)
6. AFIB Symbol (if detected)
7. Irregular Heartbeat Symbol
8. Memory Symbol
9. Battery/AC Power Indicator
10. Date & Time

Initial Setup

Before first use, install batteries or connect AC adapter, set date/time, and select user.

1. Power: Insert 4 AA batteries (ensure correct polarity) or plug in AC adapter.
2. Date/Time: Press and hold the MEMORY button for 3 seconds. Use START/STOP to adjust values, press MEMORY to confirm and move to next setting.
3. Select User: Briefly press MEMORY button to toggle between User 1 and User 2. The corresponding icon will appear on display.
4. Cuff Connection: Plug the cuff tube firmly into the socket on the side of the device.

Tip: For most accurate results, use the AC adapter or ensure batteries are fresh.

Taking a Measurement

For reliable results, remain still, quiet, and seated correctly.

1. Prepare: Sit comfortably on a chair with back support. Rest for 5 minutes. Place feet flat on the floor.
2. Apply Cuff: Wrap cuff on bare upper left arm (or as advised by doctor). The bottom edge should be 1-2 cm above elbow. The air tube should run down the center of your inner arm. Cuff should be snug but not tight.
3. Position Arm: Rest your arm on a table so the cuff is at heart level. Relax your hand, palm up.
4. Start: Press the START/STOP button. The cuff will inflate automatically.
5. Remain Still: Do not move, talk, or tense your arm during measurement.
6. Read Results: After deflation, your systolic/diastolic pressure, pulse rate, and WHO classification will display. The AFIB symbol will appear if a potential irregularity is detected.
7. Power Off: The device turns off automatically after 1 minute, or press START/STOP.

WARNING! Do not take measurements more than 3 times in succession. Wait 5 minutes between measurements on the same arm.

Memory & Data Management

The device stores 99 measurements per user.

1. View Memory: Press the MEMORY button briefly. The display shows the most recent reading with its sequence number (e.g., 99).
2. Scroll: Press MEMORY again within 3 seconds to scroll through previous readings.
3. View Average: If 3 measurements were taken within 10 minutes, the average of those 3 will be displayed first when entering memory mode, marked with an "AVG" symbol.
4. Delete All Memory for Current User: With device off, press and hold the MEMORY button until "CLR" appears, then immediately press START/STOP. All readings for the selected user will be erased.

Note: Memory is retained when batteries are removed or power is lost.

Understanding Your Results

The WHO Indicator classifies your blood pressure reading:

AFIB Symbol: If this symbol appears, it indicates the pulse during measurement showed signs consistent with Atrial Fibrillation. Consult your physician with this result. Note: This is a screening feature, not a diagnosis.

Irregular Heartbeat Symbol: Appears if significant pulse irregularities are detected during measurement. Consider repeating the measurement.

Care & Maintenance

Proper care ensures long life and accurate readings.

• Cleaning: Wipe casing and cuff with a slightly damp, soft cloth. Do not immerse in water or use solvents. Disconnect from power first.
• Storage: Store in the provided case in a cool, dry place. Avoid extreme temperatures, humidity, dust, and direct sunlight.
• Cuff Care: Do not fold the cuff tightly or crease the air tube. The cuff is not washable.
• Batteries: Replace batteries when the low battery icon appears. Remove batteries if device will not be used for several months.
• Accuracy Check: Have the monitor's accuracy checked by an authorized service center every 2 years.

CAUTION! Never attempt to repair the device yourself. No user-serviceable parts inside.

Technical Specifications

• Measurement Method: Oscillometric, automatic inflation and deflation.
• Measurement Range: Pressure: 0-299 mmHg, Pulse: 40-199 beats/min.
• Accuracy: Pressure: ±3 mmHg, Pulse: ±5% of reading.
• Inflation: Fuzzy Logic controlled, max pressure approx. 200 mmHg.
• Cuff: Universal wide-range cuff (22-42 cm / 8.7-16.5 in arm circumference).
• Memory: 99 measurements for each of 2 users.
• Power Supply: 4 x 1.5V AA batteries or 6V DC/500mA AC adapter.
• Auto Shut-off: Approximately 1 minute after last button press.
• Operating Conditions: 10°C to 40°C (50°F to 104°F), 15% to 90% relative humidity (non-condensing).
• Dimensions & Weight: Approx. 128mm (W) x 105mm (H) x 142mm (D), ~350g (without batteries).

Troubleshooting

Reset: Remove batteries and AC adapter for 1 minute, then re-insert.

Service: For persistent issues, contact Microlife customer service. Do not open the device.