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Dr.Frei M-400A - User Manual

Dr.Frei M-400A
176 pages
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dr-frei.com
AUTOMATIC
BLOOD PRESSURE
MONITOR
MODEL M-400A
USER’S MANUAL
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Table of Contents

Questions and Answers

  • B
    Brandon BrightAug 15, 2025
    How to fix Dr.Frei Blood Pressure Monitor when no display appears?
    • S
      Stephanie BellAug 15, 2025
      If no display appears on your Dr.Frei Blood Pressure Monitor after pressing the START button, it could be due to exhausted batteries. Try replacing the batteries. Alternatively, the batteries might be incorrectly installed or missing. Please check that the batteries are correctly installed.
  • A
    Anthony RamirezAug 19, 2025
    Why does the cuff on my Dr.Frei M-400A Blood Pressure Monitor keep inflating?
    • L
      louis70Aug 19, 2025
      If your Dr.Frei Blood Pressure Monitor cuff inflates again while measuring, it could be because the cuff is not fastened properly. Make sure to fasten the cuff again. Also, if your blood pressure is higher than the pressure the device has inflated, the device will automatically increase the pressure and start to inflate again. In this case, stay relaxed and wait for the measurement to complete.
  • H
    Heather YatesAug 22, 2025
    Why is my Dr.Frei M-400A result higher or lower than usual?
    • M
      Michael ObrienAug 22, 2025
      If your Dr.Frei Blood Pressure Monitor gives a result that is higher or lower than your average measurement, it could be due to incorrect positioning during the measurement. Adjust to the correct position and measure again. Also, remember that blood pressure naturally varies from time to time, so keep this in mind for your next measurement.
  • P
    paul94Aug 26, 2025
    Why is heart rate on Dr.Frei M-400A higher or lower than average?
    • B
      Bruce GoodmanAug 26, 2025
      If your heart rate is higher or lower than your average while using the Dr.Frei Blood Pressure Monitor, it could be due to movement during the measurement. Please repeat the measurement, remaining still. It could also be because the measurement was taken just after exercise. Rest for at least 30 minutes beforehand and then repeat the measurement.
  • R
    Robert FrostAug 28, 2025
    What to do if Dr.Frei M-400A Blood Pressure Monitor shows inflation or pressure error?
    • A
      Alex CookeAug 29, 2025
      If you encounter an inflation or pressure error with your Dr.Frei Blood Pressure Monitor, refit the cuff tightly and correctly. If the error persists, contact local customer service for help.
  • B
    Bethany CortezSep 1, 2025
    What to do if Dr.Frei M-400A Blood Pressure Monitor shows blood pressure measurement error?
    • J
      Jessica WashingtonSep 1, 2025
      If your Dr.Frei Blood Pressure Monitor shows a blood pressure measurement error, refit the cuff tightly and correctly. Then, relax and repeat the measurement. If the error still remains, contact local customer service for help.
  • T
    Tina HarrisSep 4, 2025
    What to do if Dr.Frei M-400A detects movement artifact?
    • J
      Joan MartinezSep 4, 2025
      If your Dr.Frei Blood Pressure Monitor detects improper movement during measurement (Artifact), relax and repeat the measurement.
  • W
    williamwilliamsSep 7, 2025
    What to do if Dr.Frei M-400A Blood Pressure Monitor shows no pulse detected?
    • S
      Susan BenjaminSep 8, 2025
      If your Dr.Frei Blood Pressure Monitor does not detect a pulse, refit the cuff tightly and correctly. Relax and repeat the measurement. If the error still remains, contact local customer service for help.
  • T
    Timothy MorganSep 12, 2025
    How to troubleshoot problems with Dr.Frei M-400A?
    • J
      John MorrisSep 12, 2025
      If you are experiencing problems with your Dr.Frei Blood Pressure Monitor, review the instructions and repeat the test. If the monitor still does not work, please contact the local customer service for help.

Summary

Important Information on Blood Pressure and Measurement

What is Blood Pressure?

Explains the concept of blood pressure, its necessity, and the two main types: systolic and diastolic.

Blood Pressure Fluctuations During the Day

Illustrates how blood pressure varies throughout the day and lists influencing factors.

Normal Blood Pressure Values

Advantages of the Dr. Frei M-400 A Monitor

Blood Pressure Level Indicator Function

Describes the color-coded indicator on the display for immediate interpretation of measurement results.

CAM Technology for Accurate Measurement

Explains CAM technology, which performs multiple measurements for enhanced accuracy, recommended by cardiologists.

Irregular Heartbeat Detection

Details the monitor's ability to detect and indicate irregular heartbeats during measurement.

Getting Ready for Measurement

General Safety Precautions

Lists essential safety guidelines for using the blood pressure monitor correctly and safely.

Blood Pressure Monitor Description

Cuff Features and Size

Details the cuff's design, material, and measurement range for arm circumferences.

Display Screen Overview

Explains the various elements and indicators shown on the device's LCD display.

Inserting the Batteries

Provides step-by-step instructions on how to properly insert the required AAA batteries.

Battery Handling Attention

Using the Mains Adaptor

Setting the Date and Time

Setting the Alarm

Alarm Setting Steps

Details the process of setting desired hours and minutes for the alarm reminders.

Measurement Procedure

Measurement Preparation and Best Practices

Provides crucial advice on posture, relaxation, and arm positioning for accurate measurements.

Fitting the Blood Pressure Cuff

Step-by-step guide on how to correctly apply the cuff to the arm for measurement.

Taking a Single Measurement

CAM Measurement Mode

Discontinuing a Measurement

Memory Function

Average of All Stored Memories

Shows the average of all recorded measurements for the selected user.

Average of Day-Time Memories

Displays the average of measurements taken during the day-time period (4:00 AM - 9:59 AM).

Average of Night-Time Memories

Displays the average of measurements taken during the night-time period (5:00 PM - 1:59 AM).

Viewing Stored Measurement Results

Details how to review individual past blood pressure and pulse readings stored in the device's memory.

Deleting Stored Memories

Instructions on how to clear all recorded measurement data from the device's memory.

Error Messages and Troubleshooting

Troubleshooting Common Issues

Offers solutions for specific problems like no display, incorrect heart rate, or cuff inflation issues.

Care and Maintenance

Cleaning the Monitor

Instructions on how to clean the exterior of the monitor and its components properly.

Monitor Storage Guidelines

Recommendations for storing the device to maintain its condition and performance.

Symbol Information

Technical Specifications

Device Specifications Summary

Details key technical data including power source, dimensions, weight, ranges, and operating conditions.

Device Checking and Calibration

Product Warranty Information

Dr.Frei M-400A Specifications

General IconGeneral
Cuff Size22-32 cm
MemoryYes
Irregular heartbeat detectionYes
WHO indicatorYes
Measurement MethodOscillometric
Pulse Range40-199 beats/min
DisplayLCD
Automatic Shut-offYes
TypeAutomatic
Intended UseTo measure blood pressure and pulse rate
Power sourceBatteries
Power Supply4 AAA batteries
Memory Capacity90 measurements per user

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