omron blood pressure monitor manual 5450
The Omron Blood Pressure Monitor Model 5450 is an automatic upper-arm blood pressure monitor with IntelliSense technology for accurate and comfortable readings, irregular heartbeat detection, hypertension indicator, memory storage for multiple users, body movement detection, and a large LCD display with backlight. It is designed for home use to help track and manage blood pressure and pulse rate. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.
Features at a Glance
Key components: Main Unit, Arm Cuff, AC Adapter, Instruction Manual, Storage Case.
| Feature | Description |
| IntelliSense Technology | Automatically inflates to the optimal pressure for a comfortable reading |
| Irregular Heartbeat Detection | Detects and displays an icon if an irregular heartbeat is detected during measurement |
| Hypertension Indicator | Displays a symbol if your systolic/diastolic reading is above the normal range |
| Dual User Memory | Stores up to 100 readings for each of two users with date and time |
| Body Movement Detection | Alerts you if movement is detected during measurement |
| Large LCD with Backlight | Easy-to-read display for readings and icons |
| AC Adapter Compatible | Can be powered by batteries or included AC adapter |
| Cuff Wrapping Guide | Integrated guide on the cuff for correct application |
| AVERAGE Mode | Calculates the average of the last three readings taken within 10 minutes |
| Clock Function | Date and time stamp for stored readings |
Safety Precautions
Read all instructions before use. This device is for home use only, not for professional medical diagnosis.
- Do not use on infants, young children, or persons who cannot express themselves.
- Do not use during or immediately after vigorous exercise, bathing, eating, or drinking alcohol/caffeine.
- Consult your physician before use if you have arrhythmia, pre-eclampsia, or other circulatory disorders.
- Do not inflate the cuff when it is not wrapped around your arm.
- Keep the device away from strong electromagnetic fields (e.g., microwave ovens, mobile phones).
WARNING! Do not modify the cuff or tubing. Do not disassemble the main unit. Use only the specified AC adapter.
Parts Identification
Front of Main Unit: START/STOP Button, Memory Button, User Select Button (I/II), LCD Display. Cuff: Arm tube with metal D-ring, air plug, cuff wrapping guide. Rear of Unit: Battery compartment, AC adapter jack, cuff socket.
Specifications
- Measurement Method: Oscillometric (automatic inflation and deflation).
- Measurement Range: Pressure: 0-299 mmHg, Pulse: 40-180 beats/minute.
- Accuracy: Pressure: ±3 mmHg, Pulse: ±5% of reading.
- Memory: 100 readings per user (2 users total).
- Power Source: 4 x AA batteries (1.5V) or AC adapter (input: 100-240V AC, output: 6V DC).
- Display: Digital LCD with backlight.
- Cuff Circumference: 22-42 cm (9-17 inches).
- Operating Conditions: Temperature: 10°C to 40°C (50°F to 104°F), Humidity: 30% to 85% RH.
- Storage Conditions: Temperature: -20°C to 60°C (-4°F to 140°F), Humidity: 10% to 95% RH.
- Weight: Approx. 400g (excluding batteries and cuff).
Initial Setup & Battery Installation
Before first use, install batteries or connect the AC adapter.
- Open the battery compartment cover on the back of the unit.
- Insert 4 AA batteries, observing the correct polarity (+/-) markings.
- Close the cover securely.
- Alternatively, plug the AC adapter into the jack on the back of the unit and then into a wall outlet.
- The display will show all segments briefly, then the date and time setup screen will appear.
- Use the START/STOP and Memory buttons to set the current date and time.
CAUTION! Do not mix old and new batteries. Do not mix alkaline and other types of batteries. Remove batteries if the device will not be used for 3 months or more.
Applying the Cuff
Correct cuff application is essential for an accurate reading.
- Sit in a chair with your feet flat on the floor. Rest for 5 minutes before measuring.
- Remove tight clothing from your upper arm.
- Pass the end of the cuff through the metal D-ring to form a loop. The cuff should not be twisted.
- Place the cuff on your bare upper arm so the air tube runs down the center of your arm, aligned with your middle finger.
- The bottom edge of the cuff should be 1-2 cm (0.5-1 inch) above your elbow.
- Secure the cuff snugly, but not too tight (you should be able to fit one finger underneath).
- Rest your arm on a table so the cuff is at the same level as your heart.
Tip: Always use the same arm for measurements. Measurements can vary between arms.
Taking a Measurement
Remain still and quiet during the measurement.
- Press the User Select button (I or II) to choose your memory profile.
- Press the START/STOP button. The cuff will begin to inflate automatically.
- Remain still, do not talk, and keep your arm relaxed until the measurement is complete.
- The cuff will deflate automatically. Your systolic pressure, diastolic pressure, and pulse rate will be displayed.
- The reading will be stored automatically in memory for the selected user.
- To turn the unit off, press the START/STOP button again, or it will turn off automatically after 1 minute.
WARNING! Do not inflate the cuff more than necessary. The IntelliSense system determines the optimal pressure.
Understanding the Display
The LCD shows icons and values. Key icons:
- User I/II: Indicates which user's memory is active.
- Heartbeat Symbol (flashing): Pulse is detected during measurement.
- Irregular Heartbeat Symbol: Appears if an irregular rhythm is detected.
- Hypertension Indicator: Appears if systolic reading is 135 mmHg or higher, or diastolic is 85 mmHg or higher.
- Body Movement Symbol: Appears if excessive movement is detected; the measurement may be inaccurate.
- Memory Symbol: Indicates a stored reading is being recalled.
- Battery Symbol: Appears when battery power is low.
- AVG: Displayed when viewing the average of the last three readings.
Memory Function
To view stored readings:
- Ensure the unit is off (display is blank).
- Press the MEMORY button. The most recent reading for the selected user (I or II) will appear with the date and time.
- Press the MEMORY button repeatedly to scroll through all stored readings for that user in reverse chronological order.
- To view the average of the last three readings taken within 10 minutes, press and hold the MEMORY button for 3 seconds while a reading is displayed.
- To clear all memory for the current user, press and hold the User Select button (I or II) for 3 seconds while in memory mode. "CLR" will flash, then all readings for that user will be deleted.
Care & Maintenance
Unplug the AC adapter and remove batteries before cleaning.
- Wipe the main unit and cuff with a soft, dry cloth. Do not use alcohol, benzene, or abrasive cleaners.
- Do not immerse any part of the device in water.
- Store the device in its case in a cool, dry place away from direct sunlight, extreme temperatures, dust, and humidity.
- Do not bend the air tube sharply or pull on it forcefully.
- Do not store the device with the cuff tightly wrapped.
CAUTION! Never attempt to repair the device yourself. Contact authorized service personnel.
Troubleshooting
| Symptom | Possible Cause | Corrective Action |
| Display is blank | Dead batteries, loose connection | Replace all batteries; ensure AC adapter is plugged in securely. |
| Error Code "E" appears | Cuff not connected, air leak | Ensure cuff plug is inserted fully; check cuff and tube for damage. |
| Error Code "Er1" or "Er2" | Measurement error | Reapply cuff correctly and retake measurement. Rest arm and remain still. |
| Irregular Heartbeat Symbol flashes | Irregular rhythm detected | The reading may be less accurate. Take another measurement. If symbol appears frequently, consult your physician. |
| Readings seem inconsistent | Incorrect posture, recent activity | Ensure proper posture (arm at heart level, feet flat, back supported). Wait 5 minutes of rest before measuring. |
| Cuff does not inflate | Blocked tube, weak batteries | Check that the air tube is not kinked. Replace batteries. |
| Memory does not store | Memory full, wrong user selected | Clear old readings for the user. Ensure correct User (I/II) is selected before measuring. |
Reset: Remove batteries and AC adapter for 1 minute to perform a soft reset.
Service: For technical support, visit www.omronhealthcare.com or contact Omron Healthcare Customer Service at 1-800-634-4350.
Omron Blood Pressure Monitor 5450 User Manual © - All Rights Reserved 2025