Microlife BP3NA1-1X Blood Pressure Monitor User Manual

The Microlife BP3NA1-1X is an automatic upper arm blood pressure monitor designed for accurate and convenient at-home blood pressure measurement. It features one-touch operation, a large LCD display, irregular heartbeat detection, 60 memory slots with date and time stamp, WHO blood pressure classification indicator, and an adjustable cuff for arm circumferences 22-32 cm. 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, Instruction manual.

Safety Information

Read all instructions before use. This device is for home use only.

1. Do not use on infants, children, or persons unable to express themselves.
2. Consult your physician before use if you have arrhythmia, blood circulation problems, or other serious conditions.
3. Do not use during or immediately after physical exercise, bathing, eating, or drinking alcohol/caffeine.
4. Do not use on injured or sore arms.
5. Keep device away from electromagnetic fields (microwaves, mobile phones).

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

Package Contents

Unpack and verify all items are present.

• Main Unit: Blood pressure monitor with display
• Arm Cuff: Adjustable with Velcro closure
• Air Tube: Connects cuff to main unit
• 4x AA Batteries: For power (may be included separately)
• Instruction Manual: This user guide
• Storage Case: For device protection (if included)

CAUTION! Do not use if any parts are damaged or missing.

Device Overview

Front Panel: LCD Display, START/STOP Button, MEMORY Button, USER Button (1/2), DATE/TIME Set Button.

Display Symbols: Systolic Pressure, Diastolic Pressure, Pulse Rate, User Indicator (1/2), Memory Indicator, Battery Indicator, WHO Bar Graph, Irregular Heartbeat Symbol, Error Symbol, Date/Time.

Cuff: Arm band with metal ring, air tube connector, Velcro closure, artery marker (line).

Initial Setup

Prepare device for first use.

1. Insert Batteries: Open battery compartment, insert 4 AA batteries observing polarity.
2. Set Date & Time: Press DATE/TIME button and use START/STOP to adjust values.
3. Connect Cuff: Insert air tube connector into port on side of main unit until it clicks.
4. Select User: Press USER button to select User 1 or User 2 for memory allocation.

Tip: Rest for 5 minutes in a seated position before first measurement.

Taking a Measurement

For accurate results, follow these steps carefully.

1. Sit comfortably with back supported and feet flat on floor.
2. Wrap cuff on bare upper arm 1-2 cm above elbow. Artery marker should align with brachial artery.
3. Secure cuff snugly but not too tight (should fit one finger underneath).
4. Rest arm on table with cuff at heart level. Palm should face upward.
5. Press START/STOP button. Cuff will inflate automatically.
6. Remain still and quiet during measurement. Do not move arm or talk.
7. Results display automatically when measurement is complete. Cuff deflates.
8. Note your systolic, diastolic pressures and pulse rate.

WARNING! Do not inflate cuff when not wrapped around arm.

Understanding Results

The display shows systolic pressure (top number), diastolic pressure (middle number), and pulse rate (bottom number).

WHO Indicator: Color bars show classification: - Green: Normal (Systolic: <120, Diastolic: <80) - Yellow: Pre-hypertension (Systolic: 120-139, Diastolic: 80-89) - Orange: Hypertension Stage 1 (Systolic: 140-159, Diastolic: 90-99) - Red: Hypertension Stage 2 (Systolic: ≥160, Diastolic: ≥100)

Irregular Heartbeat Symbol: Appears if irregular heartbeat is detected during measurement. Consult your physician if this appears frequently.

Average Value: If three measurements are taken within 10 minutes, the average of the last three displays briefly.

Memory Function

Device stores 60 measurements (30 per user).

1. Select User: Press USER button to choose User 1 or User 2.
2. View Memory: Press MEMORY button to scroll through stored measurements for selected user.
3. Each entry shows: Measurement number, systolic/diastolic values, pulse rate, date and time.
4. Clear Memory: Hold MEMORY button for 3 seconds to delete all measurements for current user.

Note: Memory is retained when batteries are removed.

Care & Maintenance

Unplug air tube and remove batteries before cleaning.

1. Clean cuff with mild soap and damp cloth. Do not immerse in water.
2. Wipe main unit with dry, soft cloth. Do not use solvents or abrasives.
3. Store in cool, dry place away from direct sunlight and extreme temperatures.
4. Replace batteries when low battery symbol appears.
5. Do not disassemble or attempt repairs.

CAUTION! Do not wash cuff in washing machine or use bleach.

Technical Specifications

• Measurement Method: Oscillometric
• Measurement Range: Pressure: 0-299 mmHg, Pulse: 40-180 beats/minute
• Accuracy: Pressure: ±3 mmHg, Pulse: ±5% of reading
• Cuff Size: 22-32 cm arm circumference
• Memory: 60 measurements (30 per user) with date/time
• Power Supply: 4x 1.5V AA batteries or DC 6V adapter (optional)
• Battery Life: Approximately 500 measurements
• Dimensions: Main unit: 118mm x 105mm x 55mm
• Weight: Approximately 300g (without batteries)
• Operating Conditions: Temperature: 10°C to 40°C, Humidity: ≤85%

Troubleshooting

Reset: Remove batteries for 1 minute to reset device.

Service: For technical support, contact Microlife Customer Service or visit www.microlife.com. Do not attempt to repair device yourself.