The Microlife BP3AA1-2 is an automatic upper arm blood pressure monitor designed for home use. It features one-touch operation, a large LCD display, irregular heartbeat detection, 2-user memory with 30 measurements each, WHO blood pressure classification indicator, average value calculation, and date/time display. Powered by 4 AA batteries or optional AC adapter. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.
Key components: Main unit with LCD display, Arm cuff with tube and connector, AC adapter port, Battery compartment, START/STOP button, MEMORY button.
| Feature | Description |
|---|---|
| One-touch operation | Automatic inflation and measurement with single button press |
| WHO classification indicator | Color-coded display shows blood pressure category |
| Irregular heartbeat detection | Detects and displays irregular heartbeat during measurement |
| 2-user memory | Stores 30 measurements for each of two users |
| Average value calculation | Displays average of last 3 measurements taken in morning/evening |
| Large LCD display | Easy-to-read display with backlight |
| Date and time | Built-in clock with date/time display |
| Automatic power-off | Turns off after 1 minute of inactivity |
| Battery indicator | Shows remaining battery power |
| Cuff fit indicator | Verifies proper cuff positioning |
Read all instructions before use. For accurate measurements and safety:
WARNING! This device is not a substitute for professional medical diagnosis. Always consult your physician about your blood pressure.
Note: Batteries and AC adapter are not included in standard package.
Front Panel: LCD display, START/STOP button. Side: MEMORY button, AC adapter port. Rear: Battery compartment.
Display Symbols: Systolic pressure, Diastolic pressure, Pulse rate, User indicator (1/2), Memory full, Battery low, Irregular heartbeat, WHO classification, Date/time, Average value.
Cuff: Velcro closure, air tube connector, artery marker (align with brachial artery).
Before first use: Install batteries or connect AC adapter, set date/time, practice cuff application.
CAUTION! Use only recommended batteries. Remove batteries if not using for extended periods.
For accurate results: Rest 5 minutes before measuring, sit correctly, apply cuff properly.
Tip: Take measurements at same time each day for consistent tracking.
2-user memory with 30 measurements each. Memory organization by date/time.
Note: Memory preserved when batteries removed (for approximately 5 minutes).
WHO classification color codes:
| Category | Systolic (mmHg) | Diastolic (mmHg) | Display Color |
|---|---|---|---|
| Optimal | < 120 | < 80 | Green |
| Normal | 120-129 | 80-84 | Light Green |
| High Normal | 130-139 | 85-89 | Yellow |
| Grade 1 Hypertension | 140-159 | 90-99 | Orange |
| Grade 2 Hypertension | 160-179 | 100-109 | Red |
| Grade 3 Hypertension | ≥ 180 | ≥ 110 | Flashing Red |
Irregular heartbeat symbol appears if irregular rhythm detected during measurement.
Clean device with soft, dry cloth only. Do not immerse in water or use chemicals.
CAUTION! Do not disassemble device. No user-serviceable parts inside.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No display | Dead batteries | Replace all 4 batteries with new ones |
| Error code E1 | Cuff not connected | Ensure cuff tube is properly connected |
| Error code E2 | Cuff over-inflated | Deflate completely and restart measurement |
| Error code E3 | Measurement error | Reposition cuff and remain still during measurement |
| Inconsistent readings | Improper positioning | Ensure cuff at heart level, rest 5 minutes before measuring |
| Memory not working | Battery removal | Memory clears if batteries removed >5 minutes |
| Cuff won't inflate | Tube blockage/leak | Check tube connection, replace cuff if damaged |
Reset: Remove batteries for 5 minutes, then reinsert.
Service: Contact Microlife customer service at 1-800-566-3456 or visit www.microlife.com