Omron HEM RML31 User Manual

The Omron HEM RML31 is an automatic upper arm blood pressure monitor designed for home use. It features IntelliSense technology for accurate and comfortable measurement, hypertension indicator, irregular heartbeat detection, body movement detection, memory storage for multiple users, and a large LCD display with backlight. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Package Contents 3. Getting Started 4. Specifications 5. Controls and Display 6. Taking a Measurement 7. Memory Function 8. Indicator Symbols 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit, Arm cuff, AC adapter, Instruction manual, Storage case.

Feature	Description
IntelliSense Technology	Automatically inflates to optimal pressure for comfortable measurement
Hypertension Indicator	Displays warning symbol if systolic/diastolic readings are high
Irregular Heartbeat Detection	Detects and displays symbol for irregular heartbeats during measurement
Body Movement Detection	Alerts if excessive movement is detected during measurement
Dual User Memory	Stores up to 60 readings per user (120 total)
Large LCD with Backlight	Easy-to-read display for day or night use
Date & Time Stamp	Records measurement date and time for tracking
Automatic Power Off	Conserves battery life by turning off after 1 minute of inactivity
AC Adapter Compatible	Can be powered by AC adapter (included) or 4 AA batteries
Cuff Wrap Guide	Ensures proper cuff placement for accurate readings

Package Contents

Unpack and verify all items are present.

HEM-RML31 Main Unit
Arm Cuff (22-32 cm circumference)
AC Adapter
Instruction Manual
Storage Case
Quick Start Guide
Warranty Card

WARNING! Do not use if any components are damaged. Contact customer service for replacement parts.

Getting Started

Prepare the monitor for first use.

Insert batteries: Open battery compartment, insert 4 AA batteries observing polarity.
Connect AC adapter: Plug into DC jack on side of unit and wall outlet (optional).
Set date and time: Press and hold SET button, use START/STOP to adjust values.
Apply cuff: Wrap cuff on bare upper arm 1-2 cm above elbow, align artery marker with brachial artery.
Rest quietly: Sit comfortably with feet flat on floor, back supported, and cuff at heart level.

CAUTION! Do not use on injured or sore arm. Ensure cuff is not too tight or loose.

Specifications

Measurement Method: Oscillometric
Pressure Range: 0-299 mmHg
Pulse Rate Range: 40-180 beats/minute
Accuracy: Pressure: ±3 mmHg, Pulse: ±5% of reading
Memory: 60 readings per user x 2 users
Cuff Size: 22-32 cm (arm circumference)
Power Source: 4 AA batteries or AC adapter (6V DC, 600mA)
Display: LCD with backlight
Operating Conditions: 10°C to 40°C, 15% to 85% humidity
Storage Conditions: -20°C to 60°C, 10% to 95% humidity

Controls and Display

Front Panel: START/STOP button, SET button, MEMORY button. Display Icons: Systolic/Diastolic values, Pulse rate, User indicator (1/2), Date/Time, Battery indicator, Hypertension indicator, Irregular heartbeat symbol, Body movement symbol, Memory recall indicator.

Button Functions: START/STOP: Begin/stop measurement. SET: Set date/time and user selection. MEMORY: Recall stored measurements.

Display Layout: Large digits for systolic/diastolic pressure and pulse rate. Smaller icons for status indicators. Backlight activates during measurement and button presses.

Taking a Measurement

Follow these steps for accurate readings.

Sit quietly for 5 minutes before measuring.
Wrap cuff properly on left arm (unless instructed otherwise by physician).
Press START/STOP button - unit will inflate automatically.
Remain still and quiet during measurement.
Readings display when measurement is complete.
Cuff deflates automatically.
Unit stores reading automatically for current user.
Power turns off automatically after 1 minute.

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

Memory Function

Stores and recalls measurements for two users.

Select user: Press SET button to toggle between User 1 and User 2.
Take measurement: Readings are stored automatically for selected user.
Recall memory: Press MEMORY button to view stored readings.
Scroll: Press START/STOP to scroll through readings (most recent first).
Clear memory: Press and hold MEMORY for 3 seconds while in memory mode (clears current user's memory).

Note: Memory is maintained when batteries are replaced if done within 3 minutes.

Indicator Symbols

Understanding display symbols.

Symbol	Meaning	Action
❤️ (flashing)	Irregular heartbeat detected	Consult physician if frequent
↑↓ (arrow)	Body movement detected	Remain still and retake measurement
⚠️ in circle	Hypertension indicator	Reading exceeds normal range
U1/U2	User 1 or User 2 selected	Indicates whose memory is active
Battery icon	Low battery	Replace batteries soon
M with number	Memory recall mode	Displaying stored reading number

Care & Maintenance

Proper care ensures accurate measurements and long device life.

Clean cuff: Use mild soap and damp cloth, then dry completely.
Clean unit: Wipe with dry soft cloth only.
Store properly: Keep in storage case in cool, dry place.
Replace batteries: When low battery symbol appears.
Avoid: Extreme temperatures, moisture, direct sunlight, strong impacts.

CAUTION! Do not immerse in water. Do not use alcohol or solvents. Do not disassemble.

Regulatory Information

FDA Cleared: For over-the-counter home use. CE Marked: Meets European medical device requirements. Manufactured by: Omron Healthcare Co., Ltd., Japan. Distributed by: Omron Healthcare, Inc. For support, visit www.omronhealthcare.com or contact 1-800-634-4350.

Compliance: Meets ANSI/AAMI/ISO 81060-2:2013 standards for electronic or automated sphygmomanometers.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No display	Dead batteries	Replace with new AA batteries
Error E1 displayed	Cuff not attached properly	Check cuff connection and retry
Error E2 displayed	Cuff pressure error	Remove and reapply cuff, ensure proper fit
Error E3 displayed	Measurement error	Remain still and retake measurement
Inconsistent readings	Improper posture or cuff placement	Sit correctly with cuff at heart level
Memory not saving	Memory full	Clear memory or switch to other user
Cuff doesn't inflate	Blocked air tube or leak	Check tube connections, ensure no kinks
Backlight not working	Battery saving mode	Backlight activates during use only

Reset: Remove batteries for 3 minutes to reset unit.

Service: 1-800-634-4350; www.omronhealthcare.com