Repeat this process to set the Month, Day, Hour, and Minute.
If the device encounters an issue during inflation or deflation, it will display an error code. Use this matrix to quickly resolve the issue. Error Code Potential Cause Correction Step Signal weak or sudden pressure change Reposition the cuff correctly and try again. E-2 Strong external interference or movement Remain perfectly still and quiet during testing. E-3 Cuff inflation error or air leakage
: Your systolic pressure, diastolic pressure, and heart rate numbers.
(depending on your specific unit's requirement) into the bottom compartment. Alternatively, some models support a 6V DC power adapter or USB-C cable for battery-free use. Cuff Preparation
: Remove all batteries if you do not plan to use the blood pressure monitor for more than three months. Specifications Measurement Principle : Oscillometric method Measurement Location : Upper arm
Thank you for purchasing the RAK283. This device measures systolic and diastolic pressure, as well as heart rate, using the oscillometric method.
Check the air tube connection plug. Ensure the cuff is wrapped tightly. Abnormal deflation or system pressure error
| Blood Pressure Category | Systolic (mmHg) | Diastolic (mmHg) | | :--- | :--- | :--- | | Optimal | < 120 | and < 80 | | Normal | 120–129 | and/or 80–84 | | High Normal | 130–139 | and/or 85–89 | | Grade 1 Hypertension | 140–159 | and/or 90–99 | | Grade 2 Hypertension | 160–179 | and/or 100–109 | | Grade 3 Hypertension | ≥ 180 | and/or ≥ 110 |
After confirming the user, the year digits will flash. Press MEM to advance the year value. Press SET to confirm.
Features a large, easy-to-read LCD digital display, control buttons, and dual-user memory zones.
If an error persists despite following the corrective actions, stop using the device and reach out to authorized customer service support. Are you using ? Is the issue happening with both users or just one?
The monitor will first display the .
The RAK283 logs your historical data automatically to help you track trends over time. Viewing Saved Measurements Ensure the monitor is turned off.
If the problem persists after following the above suggestions, please contact the support channel listed in the "Warranty and Service" section of this manual. Do not attempt to disassemble the monitor yourself.
To clear all stored data, hold the M button for five seconds while in memory mode.
Press the button to advance the year digits to the current year.