The Microlife BP3BU1-4U is an upper arm blood pressure monitor designed for home use, featuring automatic inflation, one-touch operation, irregular heartbeat detection, hypertension indicator, memory storage for multiple users, large LCD display, and comfortable cuff. It provides accurate systolic and diastolic blood pressure readings along with pulse rate. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.
Key components: Main unit with LCD display, Upper Arm Cuff, 4x AA batteries, Instruction manual, Storage case.
| Feature | Description |
|---|---|
| Automatic Inflation | One-touch operation for easy measurement |
| Irregular Heartbeat Detection | Detects and displays irregular heartbeat during measurement |
| Hypertension Indicator | Color-coded display based on WHO classification |
| Memory Function | Stores up to 99 measurements for each user |
| Multi-User Support | Supports two separate user profiles |
| Large LCD Display | Clear display of systolic, diastolic, and pulse readings |
| Comfortable Cuff | 22-42 cm circumference for proper fit |
| Date & Time Stamp | Records measurement date and time |
| Automatic Power Off | Conserves battery life |
| Average Value | Calculates average of last 3 measurements |
Read all instructions before use. Keep for future reference.
WARNING! This device is not a substitute for professional medical diagnosis. Always consult your physician about blood pressure management.
CAUTION! Check all contents upon unpacking. Contact retailer if any items are missing or damaged.
Front Panel: START/STOP button, MEMORY button, USER SELECT button, LCD display.
Display Symbols: Systolic pressure, Diastolic pressure, Pulse rate, Irregular heartbeat indicator, Hypertension indicator, User indicator, Memory indicator, Battery indicator, Date/Time.
Cuff Components: Air tube connector, Velcro closure, artery marker, metal ring.
Connections: Cuff connector port on left side of main unit.
Prepare device for initial measurement.
Tip: For most accurate results, take measurements at the same time each day.
Follow these steps for accurate readings.
WARNING! Do not move or talk during measurement. Ensure cuff is at heart level.
The display shows systolic pressure, diastolic pressure, and pulse rate.
| Display | Normal Range | Indicator |
|---|---|---|
| Systolic (upper) | 90-119 mmHg | Green zone |
| Diastolic (lower) | 60-79 mmHg | Green zone |
| Systolic 120-139 | Prehypertension | Yellow zone |
| Diastolic 80-89 | Prehypertension | Yellow zone |
| Systolic ≥140 | Hypertension | Red zone |
| Diastolic ≥90 | Hypertension | Red zone |
Irregular Heartbeat Symbol: Appears if irregular heartbeat detected during measurement. Consult physician if this appears frequently.
Error Codes: E1 (cuff too loose), E2 (movement during measurement), E3 (pressure error), E4 (pulse error).
Stores up to 99 measurements per user.
Note: Memory includes date, time, systolic, diastolic, pulse, and irregular heartbeat indicator for each reading.
CAUTION! Do not mix old and new batteries. Do not mix alkaline and rechargeable batteries. Remove batteries if device will not be used for extended period.
Remove batteries before cleaning. Use only slightly damp cloth; do not immerse in water.
WARNING! Never wash cuff in washing machine. Do not expose to extreme temperatures or humidity.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No display | Dead batteries | Replace all 4 batteries with new ones |
| Error E1 appears | Cuff not properly applied | Reapply cuff snugly on bare arm |
| Error E2 appears | Movement during measurement | Remain completely still during measurement |
| Inconsistent readings | Incorrect positioning | Ensure cuff at heart level, back supported |
| Cuff doesn't inflate | Tube blockage or leak | Check tube connection; ensure no kinks |
| Memory not working | Batteries very low | Replace batteries; memory may be lost |
| Irregular heartbeat symbol | Arrhythmia detected | Consult physician if frequent |
Reset: Remove batteries for 5 minutes to reset device.
Service: For technical support, contact Microlife customer service at 1-800-******* or visit www.microlife.com