NOUYAN BA31

NOUYAN BA31 Blood Pressure Monitor User Manual

Model: BA31 | Brand: NOUYAN

1. Introduction

Thank you for choosing the NOUYAN BA31 Blood Pressure Monitor. This device is designed for convenient and accurate measurement of blood pressure and pulse rate at home. It features a large LED display, dual-user memory, intelligent voice broadcast, and an adjustable cuff for comfortable use. Please read this manual thoroughly before using the device to ensure proper operation and accurate readings.

NOUYAN BA31 Blood Pressure Monitor with large LED display

The NOUYAN BA31 Blood Pressure Monitor, showcasing its large LED display and intuitive button layout.

2. Important Safety Information

  • Consult your physician before using this device if you have any medical conditions.
  • Do not use this device for diagnosis or treatment of any health problem or disease.
  • Keep out of reach of children.
  • Do not use the device in a moving vehicle.
  • Avoid strong electromagnetic fields during use.

3. Product Components

The NOUYAN BA31 Blood Pressure Monitor package includes the following items:

  • NOUYAN BA31 Blood Pressure Monitor Unit
  • Adjustable Upper Arm Cuff (8.7"-16.5")
  • Storage Bag
  • USB Cable (for plug-in use)
  • User Manual
Contents of the NOUYAN BA31 Blood Pressure Monitor package including the monitor, cuff, storage bag, and USB cable.

Visual representation of the items included in the product package.

4. Setup

4.1 Power Supply

The NOUYAN BA31 monitor can be powered by either 3 AA batteries (not included) or via the included USB cable for plug-in use. Do not insert batteries when using the USB power supply.

  • Battery Installation: Open the battery compartment cover on the back of the device. Insert 3 AA batteries, ensuring correct polarity (+/-). Close the cover securely.
  • USB Power: Connect the USB cable to the monitor's USB port and plug the other end into a compatible USB power adapter (e.g., phone charger, computer USB port).
Image showing the two power supply modes for the NOUYAN BA31 blood pressure monitor: USB cable and 3 AA batteries.

The monitor supports both USB plug-in power and AA battery operation for flexibility.

4.2 Connecting the Cuff

Insert the air tube connector of the cuff firmly into the air jack on the side of the monitor unit.

5. Operating Instructions

5.1 Applying the Cuff

The adjustable cuff fits arm circumferences from 8.7 inches to 16.5 inches. Ensure the cuff is applied correctly for accurate readings.

  • Place the cuff on your bare upper left arm, approximately 1-2 cm above the elbow joint.
  • The air tube should run down the center of your arm.
  • Wrap the cuff snugly around your arm, ensuring it is not too tight or too loose. The cuff features a self-check function to help confirm correct positioning.
Image demonstrating how to properly apply the adjustable blood pressure cuff on the upper arm, highlighting the 8.7 to 16.5 inch range and cuff positioning self-check.

Proper cuff placement is crucial for accurate blood pressure measurement. The cuff's adjustable range accommodates various arm sizes.

5.2 Correct Measurement Posture

For reliable results, follow these guidelines:

  • Relax before measurement: Rest for at least 5 minutes before taking a reading.
  • Wear on Left arm: Always use the left arm unless advised otherwise by a medical professional.
  • Keep at the heart level: Ensure your arm is supported and the cuff is at the same level as your heart.
  • Keep quiet during measurement: Avoid talking or moving during the measurement process.
Diagram illustrating the correct posture for blood pressure measurement: relax, wear on left arm, keep at heart level, and keep quiet.

Following these posture guidelines helps ensure the accuracy of your blood pressure readings.

5.3 Starting Measurement

Once the cuff is correctly applied and you are in the proper posture, press the START/STOP button. The cuff will automatically inflate, and the measurement will begin. The display will show your systolic (SYS), diastolic (DIA), and pulse readings upon completion.

Close-up of the NOUYAN BA31 blood pressure monitor's LED display showing systolic, diastolic, pulse, time, and various icons for features like dual-user, mute, and cuff wrap status.

The clear LED display shows all essential measurement data, including systolic, diastolic, and pulse readings.

5.4 Understanding Your Readings (Indicator Bar)

The monitor features an indicator bar on the left side of the display, which visually categorizes your blood pressure reading according to WHO (World Health Organization) standards. This provides a quick reference for your health condition.

Blood Pressure Classification (WHO Standard)
CategorySystolic (SYS) mmHgDiastolic (DIA) mmHgIndicator Color
Optimal Blood Pressure<120<80Green
Normal Blood Pressure<130<85Green
High Normal Value<140<90Yellow
Mild Hypertension<160<100Orange
Moderate Hypertension<180<110Dark Orange
Severe Hypertension≥180≥110Red
Blood pressure indicator bar showing different hypertension levels and their corresponding color codes: green for normal, yellow for high normal, orange for mild to moderate hypertension, and red for severe hypertension.

The indicator bar provides a quick visual assessment of your blood pressure category.

6. Memory Functions

The NOUYAN BA31 monitor supports dual-user storage, with each user able to store up to 120 readings, totaling 240 memories. This feature is ideal for tracking health trends over time for two individuals.

  • Switching Users: Press the User/Confirm button (icon with two people) to switch between User 1 and User 2.
  • Viewing Memories: After selecting a user, press the Memory/Switch button (icon with a document) to scroll through past readings.
Image illustrating the dual-user memory function of the NOUYAN BA31 blood pressure monitor, showing how 240 memories are stored separately for two users.

The dual-user memory allows two individuals to track their blood pressure history independently.

7. Voice Broadcast Feature

The monitor includes an intelligent voice broadcast function that provides audio prompts during measurement and announces the results. This feature can be turned on or off as needed.

  • Toggle Voice: Press the Mute Button (speaker icon) to activate or deactivate the voice broadcast.
Image showing the NOUYAN BA31 blood pressure monitor with its voice broadcast feature, indicating that voice prompts are provided during measurement and can be switched on or off using the mute button.

The voice broadcast feature enhances usability, especially for individuals with visual impairments.

8. Maintenance

  • Clean the monitor and cuff with a soft, dry cloth. Do not use abrasive cleaners or immerse in water.
  • Store the device in the provided storage bag in a cool, dry place, away from direct sunlight and extreme temperatures.
  • Remove batteries if the device will not be used for an extended period.

9. Troubleshooting

Common Issues and Solutions
ProblemPossible CauseSolution
No display when powered onBatteries are low or incorrectly inserted; USB cable not connected properly.Replace batteries or ensure correct polarity. Check USB cable connection.
Inaccurate readingsImproper cuff placement; movement or talking during measurement; incorrect posture.Re-apply cuff correctly. Remain still and silent. Follow correct posture guidelines.
Cuff does not inflateAir tube disconnected; cuff leakage.Ensure air tube is firmly connected. Check cuff for any damage or leaks.
Voice broadcast not workingVoice feature is muted.Press the Mute button to unmute the voice broadcast.

10. Specifications

Product Specifications
FeatureDetail
Product Dimensions5.27"L x 1.85"W x 4.33"Th
Item Model NumberBA31
ManufacturerShenzhen Jamr Technology Co., Ltd.
Power SourceBattery Powered (3x AA) / USB Plug-in
Use ForUpper Arm
Display TypeLED
Cuff SizeAdjustable 8.7"-16.5"
Memory Storage2 x 120 readings (240 total)
Weight14.39 ounces (approx. 408g)
Image showing the dimensions of the NOUYAN BA31 blood pressure monitor: 5.3 inches in height, 1.37 inches in depth, and 4.33 inches in width.

Detailed dimensions of the NOUYAN BA31 monitor.

11. Warranty and Support

For warranty information or technical support, please refer to the contact details provided with your product packaging or visit the official NOUYAN website. Keep your purchase receipt as proof of purchase for warranty claims.

© 2025 NOUYAN. All rights reserved.

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