Microlife BP 3AC1-1 PC Blood Pressure Monitor User Manual

The Microlife BP 3AC1-1 PC is an upper arm blood pressure monitor designed for personal use with PC connectivity. It features Microlife's patented AFIB detection technology for irregular heartbeat screening, one-touch operation, memory storage for multiple users, a large LCD display with backlight, adjustable cuff, and data transfer capability to a computer via USB for tracking and analysis. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Main unit with LCD display, Adjustable upper arm cuff, USB cable for PC connection, AC adapter, Storage case, Quick start guide.

Safety Information

Read all instructions before use. For personal home use only.

1. Medical Device: This monitor is a screening device, not a diagnostic tool. Consult your physician for diagnosis and treatment.
2. Contraindications: Do not use on an arm with an intravenous drip or arterial shunt.
3. Pre-measurement: Rest for 5 minutes, avoid caffeine, smoking, and exercise 30 minutes prior.
4. Cuff Placement: Apply cuff to bare upper arm at heart level. Ensure tube runs down the center of the arm.
5. Power: Use only the specified AC adapter or 4 AA batteries. Do not mix old and new batteries.

WARNING! Do not use this device if you have atrial fibrillation or other persistent arrhythmias unless approved by your doctor. The AFIB detection is for screening only.

Package Contents

• Microlife BP 3AC1-1 PC Blood Pressure Monitor (Main Unit)
• Adjustable Upper Arm Cuff (22-42 cm)
• USB Cable (for PC connection)
• AC Adapter (Input: 100-240V AC; Output: 6V DC)
• 4 x AA Batteries (for initial use)
• Storage Case
• Quick Start Guide
• CD-ROM with PC Software (or download link)
• This User Manual

Note: Inspect all contents upon unboxing. Contact your retailer if any item is missing or damaged.

Device Overview

Front Panel:

• LCD Display: Shows measurement results, memory, user indicator, date/time, and icons.
• START/STOP Button: Initiates and stops measurement.
• MEMORY Button: Recalls stored readings and sets user (User 1/User 2).
• TIME SET Button: Sets the date and time.

Side/Back Panel:

• USB Port: For connecting to a computer.
• DC IN Jack: For AC adapter.
• Cuff Socket: For connecting the air tube from the cuff.
• Battery Compartment: Holds 4 AA batteries.

Cuff: Marked with artery index (△) to ensure proper placement over the brachial artery.

First-Time Setup

1. Insert Batteries/Connect Power: Open battery compartment and insert 4 AA batteries (observe polarity), or plug in the AC adapter to the DC IN jack.
2. Set Date & Time: Press and hold the TIME SET button. Use START/STOP to adjust values and MEMORY to confirm and move to the next setting.
3. Attach Cuff: Plug the cuff tube firmly into the socket on the side of the monitor.
4. Install PC Software: Insert the provided CD or download the latest "Microlife Health Management Software" from the official website. Install on your computer.

CAUTION! Do not over-tighten the cuff connector. Ensure the cuff is completely deflated before first use.

Taking a Measurement

For the most accurate results, follow these steps:

1. Prepare: Sit quietly on a chair with back support for 5 minutes. Place feet flat on the floor.
2. Apply Cuff: Wrap the cuff on your bare upper arm, 1-2 cm above the elbow. The artery mark (△) should be over the inner arm. The tube should run down the center of your arm.
3. Position Arm: Rest your arm on a table so the cuff is at heart level. Relax your palm upward.
4. Start Measurement: Press the START/STOP button. The cuff will inflate automatically.
5. Remain Still: Do not move or talk during inflation and measurement.
6. Read Results: After deflation, your systolic pressure, diastolic pressure, and pulse rate will display. The WHO indicator bar will show the classification. An irregular heartbeat or AFIB symbol will appear if detected.
7. Power Off: The device will automatically turn off after 1 minute, or press START/STOP to turn off immediately.

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

PC Connectivity & Software

Transfer readings to your computer for detailed tracking, graphs, and reports.

1. Connect: Use the provided USB cable to connect the monitor to your computer's USB port.
2. Open Software: Launch the Microlife Health Management Software on your PC.
3. Transfer Data: Follow the on-screen instructions in the software to download all stored readings from the monitor's memory.
4. View & Analyze: The software organizes readings by date, user, and time. You can view trends, print reports, or export data.

Note: Ensure the monitor is turned on when connecting to the PC. The software may require an initial setup to create user profiles.

Memory Function

The device stores up to 99 readings for each of 2 users.

• Select User: Press the MEMORY button to toggle between User 1 and User 2 (icon appears on display).
• Recall Memory: Press and hold the MEMORY button for 3 seconds to enter memory mode. Use START/STOP to scroll through readings for the selected user.
• Delete All Memory: While in memory mode, press and hold both MEMORY and TIME SET buttons simultaneously for 5 seconds to delete all readings for the current user.

Warning: Deleting memory is permanent. Transfer data to your PC first if you wish to keep a record.

Care & Maintenance

Proper care ensures accurate measurements and long device life.

1. Cleaning: Wipe the monitor and cuff with a soft, slightly damp cloth. Do not immerse in water or use solvents.
2. Storage: Disconnect the cuff tube, loosely coil it, and store all components in the provided case in a cool, dry place.
3. Cuff Care: Do not fold the cuff tightly or crease the air tube. Check the cuff and tube for cracks or leaks periodically.
4. Batteries: Replace batteries when the low battery icon appears. Remove batteries if the device will not be used for an extended period.

CAUTION! Never attempt to repair the device yourself. Contact Microlife service for any malfunctions.

Error Messages & Troubleshooting

Reset: Remove batteries and AC adapter for 5 minutes, then reconnect to perform a soft reset.

Specifications & Warranty

• 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
• Power Supply: 4 x 1.5V AA batteries or 6V DC adapter
• Display: LCD with backlight
• Cuff: 22-42 cm (9"-16.5")
• Interface: USB 2.0
• Operating Conditions: 10°C to 40°C, 15% to 90% RH (non-condensing)
• Warranty: 5-year limited warranty on the device. See warranty card for details.

Support: For technical support, software downloads, or service, visit www.microlife.com or contact Microlife customer service.