The Microlife BP 3AQ1 is an automatic upper arm blood pressure monitor with clinically validated accuracy, featuring the patented AFIB (Atrial Fibrillation) detection technology, large LCD display with backlight, one-touch operation, adjustable cuff (22-42 cm), memory storage for multiple users, irregular heartbeat detection, WHO classification indicator, date/time function, and automatic power-off. Powered by 4xAA batteries or optional AC adapter. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.
Key components: Main unit with LCD display, Adjustable arm cuff, Air tube, 4xAA batteries, Instruction manual, Storage case.
| Feature | Description |
|---|---|
| AFIB Detection | Patented technology to screen for atrial fibrillation during measurement |
| One-Touch Operation | Automatic inflation and deflation with single START button |
| WHO Classification | Color-coded indicator based on WHO hypertension guidelines |
| Memory Function | Stores up to 99 measurements per user (2 users total) |
| Irregular Heartbeat Detection | Detects and displays irregular heartbeat during measurement |
| Adjustable Cuff | Fits arm circumference 22-42 cm (8.7-16.5 inches) |
| Large LCD Display | Backlit screen for easy reading in all lighting conditions |
| Date & Time Stamp | Automatically records measurement date and time |
| Automatic Power-Off | Conserves battery life by turning off after 1 minute of inactivity |
| Dual Power Source | Operates on 4xAA batteries or optional AC adapter |
Read all instructions before use. Keep for future reference.
WARNING! This device is for home use only, not for professional medical diagnosis. Always consult your physician for medical advice.
CAUTION! Check all contents upon unpacking. Do not use if any parts are damaged or missing.
Front Panel: LCD display, START/STOP button, MEMORY button, USER button (1/2), DATE/TIME button.
Display Symbols: Systolic pressure, Diastolic pressure, Pulse rate, AFIB indicator, Irregular heartbeat symbol, WHO classification bar (green/yellow/red), User indicator, Battery icon, Memory icon, Date/Time display.
Side/Back: Air tube connector, AC adapter port (optional), Battery compartment.
Tip: Rest for 5 minutes before first measurement. Avoid talking or moving during measurement.
WARNING! Do not inflate cuff when not attached to arm. Maximum pressure is 300 mmHg.
Blood Pressure Values: Displayed as systolic/diastolic (e.g., 120/80 mmHg)
WHO Classification Indicator: - Green: Normal (systolic < 135, diastolic < 85) - Yellow: Mild hypertension (systolic 135-159, diastolic 85-99) - Red: Severe hypertension (systolic ≥ 160, diastolic ≥ 100)
AFIB Indicator: Flashing heart symbol with "AFIB" text appears if atrial fibrillation is detected during measurement.
Irregular Heartbeat Symbol: Appears if irregular heartbeat is detected (but not confirmed AFIB).
Error Symbols: E1-E5 codes indicate measurement errors (see Troubleshooting section).
Stores up to 99 measurements per user (2 users total).
Note: Memory is maintained when batteries are replaced (if done within 3 minutes).
CAUTION! Do not immerse device in water. Avoid extreme temperatures and humidity.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Display blank | Dead batteries | Replace all 4 batteries with new alkaline batteries. |
| Error E1 | Cuff not properly attached | Check cuff connection, rewrap cuff, restart measurement. |
| Error E2/E3 | Movement during measurement | Remain still, repeat measurement after 2-3 minutes. |
| Error E4 | Pulse rate out of range | Check positioning, ensure cuff at heart level. |
| Error E5 | Measurement error | Check cuff placement, avoid talking, repeat measurement. |
| Inconsistent readings | Incorrect positioning | Ensure proper sitting position, arm at heart level. |
| AFIB symbol appears | Possible atrial fibrillation | Consult physician with measurement results. |
| Memory not saving | Memory full | Delete old readings or switch to other user. |
Reset: Remove batteries for 3 minutes to reset device to factory settings (erases memory).
Service: For technical support, contact Microlife Customer Service at 1-800-566-3456 or visit www.microlife.com