Rak283 Blood Pressure Monitor User Manual May 2026

The RAK283 classifies results according to the WHO (World Health Organization) standard:

| 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 |

Note: A single high reading is not a cause for alarm. Blood pressure varies minute by minute. Diagnosis requires multiple readings over time recorded in a log. rak283 blood pressure monitor user manual

When to contact a doctor:

The Unit:

LCD Icons:

Before starting, ensure you have the following components: The RAK283 classifies results according to the WHO

| Problem | Possible Cause | Solution | | :--- | :--- | :--- | | No Display | Batteries are dead or inserted incorrectly. | Replace batteries or correct polarity. | | Error Symbol (E) | Cuff not applied correctly or air leak. | Refasten the cuff; ensure the tube is plugged in. | | Inconsistent Readings | Movement during measurement or talking. | Sit still, relax, and do not talk. | | Very High Reading | Arm is below heart level. | Raise arm using a cushion/pillow. | | Cuff Inflation Pain | Cuff is too tight. | Loosen the cuff slightly. |