This article covers some of the error codes that may display on the Omron scale when a patient tries to take a reading.
Err 4 means "Calibration Error". This error will be caused by following conditions.
1. A failed auto calibration after reading
2. Taking a reading if the scale is not calibrated
HN-290T will calibrate automatically after each weight reading (when the display turns off). This process takes about 5 seconds and there is no indicator to the patient during this process. If the patient steps on the scale during this process, the calibration process will fail and ERR 4 will display on the scale.
If this error code occurs, let the patient know:
- Do not step on the scale or move the scale immediately after taking a reading. Wait at least 5 seconds before doing so.
- If the device show Err 4, step off the scale, wait at least 5 seconds, and then take the reading again.