Microlife 3BT0-AP Blood Pressure Monitor User Manual

The Microlife 3BT0-AP is an automatic upper arm blood pressure monitor designed for home use. It features a large, easy-to-read LCD display, one-touch operation, irregular heartbeat detection, 2-user memory with 60 measurements each, WHO blood pressure classification indicator, adjustable cuff, and date/time function. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Information 3. Package Contents 4. Device Overview 5. First-Time Setup 6. Taking a Measurement 7. Memory Function 8. Understanding Results 9. Care & Maintenance 10. Battery Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with LCD display, Adjustable upper arm cuff, Air tube, 4x AA batteries, Storage case, Instruction manual.

Feature	Description
Automatic Inflation & Deflation	One-touch operation for easy measurement
WHO Indicator	Color-coded scale shows blood pressure classification
2x60 Memory	Stores 60 measurements for each of 2 users
Irregular Heartbeat Detection	Detects and displays irregular heartbeats during measurement
Large LCD Display	Clear, backlit display with large digits
Date & Time Stamp	Records date and time of each measurement
Adjustable Cuff	Fits arm circumferences 22-42 cm (8.7-16.5 inches)
Average Value	Calculates average of last 3 measurements per user
Automatic Power Off	Conserves battery life
Error Detection	Alerts for incorrect cuff placement or movement

Safety Information

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

Do not use on infants, children, or persons unable to express their will.
Consult your physician before use if you have arrhythmia, pre-eclampsia, or other circulatory disorders.
Do not use during or immediately after physical exercise.
Do not inflate cuff when not wrapped around arm.
Keep device away from children and pets.

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

Package Contents

Microlife 3BT0-AP Monitor: 1 unit
Upper Arm Cuff: 1 piece (22-42 cm)
Air Tube: 1 piece (pre-connected)
AA Batteries: 4 pieces
Storage Case: 1 piece
User Manual: 1 copy
Quick Start Guide: 1 copy

CAUTION! Check all items upon unpacking. Do not use if any part is damaged.

Device Overview

Front Panel: START/STOP button, MEMORY button, USER SELECT button (1/2), LCD display. Cuff: Air tube connector, Velcro closure, artery marker.

Display Symbols: User indicator (1/2), Systolic pressure, Diastolic pressure, Pulse rate, WHO indicator (color bars), Irregular heartbeat symbol, Memory recall, Date/Time, Battery indicator, Error symbol.

Back: Battery compartment, Cuff connector port.

First-Time Setup

Prepare device before first use.

Insert batteries: Open battery compartment, insert 4 AA batteries observing polarity.
Set date and time: Press and hold MEMORY button for 3 seconds, use START/STOP to adjust.
Select user: Press USER button to select User 1 or User 2.
Apply cuff correctly: Follow positioning instructions in section 7.

Tip: Wait 5 minutes after battery insertion before first use.

Taking a Measurement

For accurate results, follow these steps carefully.

Rest for 5 minutes before measurement. Sit comfortably with feet flat on floor.
Wrap cuff on bare left arm 1-2 cm above elbow. Artery marker should align with brachial artery.
Ensure cuff is snug but not tight. Arm should be supported at heart level.
Press START/STOP button. Device will inflate automatically.
Remain still and quiet during measurement. Do not move arm or talk.
Results display automatically with systolic, diastolic, and pulse values.
Cuff deflates completely. Device stores reading automatically.
Wait at least 3 minutes before next measurement on same arm.

WARNING! Do not inflate cuff repeatedly in quick succession. Allow 15 minutes between measurements on same arm.

Memory Function

Device stores 60 measurements for each of 2 users.

Select user: Press USER button to choose User 1 or User 2 before measurement.
Recall memory: Press MEMORY button to scroll through stored readings.
View average: After 3 measurements, average of last 3 readings displays automatically.
Clear memory: Press and hold USER and MEMORY buttons simultaneously for 5 seconds (clears current user's memory only).

Note: Memory includes date, time, systolic, diastolic, pulse, and irregular heartbeat detection.

Understanding Results

WHO Classification Indicator (color bars on display):

Color	Category	Systolic (mmHg)	Diastolic (mmHg)
Blue	Low	< 90	< 60
Green	Normal	90-129	60-84
Yellow	High Normal	130-139	85-89
Orange	Grade 1 Hypertension	140-159	90-99
Red	Grade 2 Hypertension	160-179	100-109
Flashing Red	Grade 3 Hypertension	≥ 180	≥ 110

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

Care & Maintenance

Remove batteries before cleaning. Use slightly damp cloth only; do not immerse in water.

Clean cuff with mild soap and damp cloth. Air dry completely before storage.
Clean monitor with dry or slightly damp cloth. Do not use solvents or abrasives.
Store in provided case in cool, dry place away from direct sunlight.
Do not fold cuff tightly; avoid sharp bends in air tube.

CAUTION! Do not autoclave, sterilize, or use chemical disinfectants. Do not expose to extreme temperatures or humidity.

Battery Information

Battery Type: 4 x 1.5V AA alkaline batteries
Battery Life: Approximately 500 measurements (without backlight)
Low Battery Indicator: Empty battery symbol appears on display
Battery Replacement: Replace all 4 batteries at same time
Disposal: Dispose according to local regulations

Note: Remove batteries if device will not be used for extended period (more than 3 months).

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display	Dead batteries	Replace all 4 batteries with new alkaline batteries.
Error E1 displayed	Cuff not connected properly	Check cuff connection to monitor; ensure secure.
Error E2 displayed	Cuff pressure error	Check for leaks in cuff or tube; replace if damaged.
Error E3 displayed	Measurement error	Ensure proper cuff placement; remain still during measurement.
Inconsistent readings	Incorrect positioning	Ensure arm at heart level; cuff at correct height; rest before measuring.
Memory not storing	Memory full	Clear memory for current user; select correct user before measuring.
Cuff won't inflate	Blocked air tube	Check for kinks; ensure tube not pinched.
Irregular heartbeat symbol frequent	Possible arrhythmia	Consult physician for evaluation.

Reset: Remove batteries for 5 minutes, then reinsert.

Service: Do not attempt to repair. Contact Microlife customer service or authorized service center.

Warranty: 5-year limited warranty from date of purchase. Register product online at www.microlife.com.