Omron Blood Pressure Monitor BP742N Manual

The Omron BP742N is an upper arm blood pressure monitor featuring IntelliSense technology for accurate and comfortable readings, a large backlit display, irregular heartbeat detection, hypertension indicator, memory storage for up to 100 readings for two users, body movement detection, and a wide-range D-Ring cuff. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Information 3. Parts Identification 4. Initial Setup & Battery Installation 5. Applying the Cuff 6. Taking a Measurement 7. Understanding the Display 8. Memory Function 9. Care & Maintenance 10. Specifications 11. Troubleshooting

Features at a Glance

Key components: Main unit with backlit display, Wide-Range D-Ring Cuff (22-42 cm), AC Adapter port, Battery compartment, START/STOP button, Memory button.

Feature	Description
IntelliSense Technology	Automatically inflates to the optimal level 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 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 that could affect the reading
Large Backlit Display	Easy-to-read screen with adjustable brightness
Wide-Range D-Ring Cuff	Fits arms 22 to 42 cm in circumference
AC Adapter Compatible	Can be powered by batteries or optional AC adapter
AVERAGE Mode	Calculates the average of the last three readings taken within 10 minutes
Clock Function	Date and time stamp for all stored readings

Safety Information

Read all instructions before use. For accurate readings and safe operation.

Do not use on infants, small children, or persons unable to express themselves.
Do not use during an episode of arrhythmia (irregular heartbeat).
Consult your physician before use if you have severe circulatory problems or arteriosclerosis.
Do not use the monitor on an arm with an intravenous drip or surgical wound.
Do not inflate the cuff when it is not wrapped around your arm.

WARNING! This device is not a substitute for professional medical diagnosis. Always consult your physician for interpretation of readings.

Parts Identification

Familiarize yourself with the main components of the monitor.

Main Unit: Contains the display, control buttons, and internal pump.
Display: Shows systolic/diastolic pressure, pulse, icons, and memory data.
START/STOP Button: Initiates and stops the measurement.
Memory Button (M): Accesses and reviews stored readings.
Cuff with D-Ring: Wraps around the upper arm. The air tube connects to the left side of the unit.
AC Adapter Jack: For connecting the optional AC adapter (model EA11A).
Battery Compartment: Holds 4 AA batteries.

CAUTION! Ensure the cuff tube is securely connected to the main unit before use.

Initial Setup & Battery Installation

Power on the monitor and set the date/time.

Open the battery compartment cover on the back of the unit.
Insert 4 new AA batteries, observing the correct polarity (+/-).
Close the cover. The display will show all segments briefly, then the date/time setting mode.
Use the START/STOP button to increase values and the Memory (M) button to move between settings (Year, Month, Day, Hour, Minute, 12/24hr format).
After setting the last item, the monitor will exit setup mode and is ready for use.

Tip: For consistent power, Omron recommends using the optional AC adapter (sold separately).

Applying the Cuff

Correct cuff placement is essential for an accurate reading.

Sit in a chair with your feet flat on the floor and rest your arm on a table so the cuff is at heart level.
Place your left arm through the cuff loop. The bottom edge of the cuff should be 1-2 cm above your elbow.
Secure the cuff snugly around your bare upper arm using the D-Ring fabric fastener. You should be able to fit one finger between the cuff and your arm.
Ensure the air tube runs down the center of your arm, aligned with your middle finger.
Remain still and do not talk during the measurement.

WARNING! Do not apply the cuff over clothing. Tight sleeves should be rolled up, not constricting the arm.

Taking a Measurement

Follow these steps for a proper reading.

Relax: Sit quietly for 5 minutes before measuring.
Apply the cuff correctly as described in Section 6.
Press the START/STOP button. All display icons will appear, and the cuff will begin to inflate automatically.
Remain still and quiet with your arm relaxed and supported. The cuff will inflate and then gradually deflate.
Your systolic pressure, diastolic pressure, and pulse rate will be displayed when the measurement is complete.
The cuff will deflate fully. You may now remove it.

Note: If a body movement or irregular heartbeat is detected, an icon will appear. Remain still and take another reading.

Understanding the Display

Interpret the symbols and numbers on the screen.

Symbol/Number	Meaning
SYS / ###	Systolic Blood Pressure (higher number)
DIA / ###	Diastolic Blood Pressure (lower number)
Pulse / ###	Heartbeats per minute
Irregular Heartbeat Icon	Appears if an irregular rhythm is detected during measurement
Hypertension Indicator	Appears if systolic reading is 135 mmHg or higher, or diastolic is 85 mmHg or higher
Body Movement Icon	Appears if excessive movement is detected
Memory Icon (1 or 2)	Indicates which user's memory is being displayed or used
AVG	Indicates Average Mode is active or an average is being displayed
Clock Icon	Indicates date/time is being displayed or set
Low Battery Icon	Appears when battery power is low

Memory Function

Store and review past readings for two users.

Selecting a User: Press and hold the Memory (M) button for 3 seconds until the user number (1 or 2) flashes. Press START/STOP to select the desired user.
Viewing Memory: Briefly press the Memory (M) button. The most recent reading for the selected user appears. Press again to scroll through older readings (up to 100).
Viewing Average: While in memory mode, press and hold the Memory (M) button for 3 seconds to see the average of all readings for that user.
Clearing Memory: With the unit OFF, press and hold the Memory (M) button while inserting the batteries. Release the button when "CLR" appears on the display. This clears memory for the currently selected user only.

Tip: Take readings at the same time each day for the most consistent trend data.

Care & Maintenance

Proper care ensures long-term accuracy and reliability.

Cleaning: Wipe the main unit and cuff with a soft, dry cloth. Do not use alcohol, benzene, thinner, or abrasive cleaners.
Storage: Disconnect the cuff tube, loosely coil it, and store the monitor in a cool, dry place away from direct sunlight, dust, and extreme temperatures.
Cuff Care: Do not fold the cuff tightly or twist the air tube excessively. Do not wash the cuff.
Batteries: Remove batteries if the monitor will not be used for 3 months or longer to prevent leakage.

CAUTION! Never submerge the monitor or cuff in water. Do not disassemble or attempt to repair the unit yourself.

Specifications

Measurement Method: Oscillometric (upper arm).
Measurement Range: Pressure: 0-299 mmHg, Pulse: 40-180 beats/min.
Accuracy: Pressure: ±3 mmHg, Pulse: ±5% of reading.
Memory: 100 readings x 2 users.
Cuff Size: 22-42 cm arm circumference (Wide-Range D-Ring).
Power Source: 4 x AA batteries or optional AC adapter (DC 6V, EA11A).
Automatic Shut-off: Approx. 1 minute after last button press.
Operating Conditions: 10°C to 40°C, 15% to 85% RH (non-condensing).
Dimensions (Main Unit): Approx. 128mm (W) x 105mm (H) x 141mm (D).
Weight: Approx. 400g (without batteries).

Troubleshooting

Symptom	Possible Cause	Corrective Action
Display is blank	Dead batteries, improper installation	Install new batteries correctly. Ensure AC adapter is firmly connected if used.
Error Code "E" appears	Cuff not attached, air leak, or measurement error	Ensure cuff is connected. Re-wrap cuff snugly. Rest for 5 min and retry.
Irregular Heartbeat Icon flashes	Irregular rhythm detected	Remain still and take another reading. If icon appears frequently, consult your physician.
Reading seems inaccurate	Incorrect posture, talking/moving, cuff position	Sit correctly with cuff at heart level. Remain still and silent. Ensure proper cuff application.
Memory data is lost	Batteries removed for extended period	Memory is maintained by batteries. If batteries are dead/removed for over 5 minutes, memory may clear.
Cuff does not inflate	Blocked air tube, weak batteries, internal fault	Check that air tube is not kinked. Replace batteries. Contact service if problem persists.

Reset: Remove all batteries, wait 5 minutes, and reinstall. This may clear temporary errors.

Service: For technical support, visit www.omronhealthcare.com or contact Omron Healthcare customer service. Do not open the unit.