Proline Promass F 300 Coriolis flowmeter Endress+Hauser Promass 300 errors and how to fix them Proline Promass [F 300](https://www.cwlyautomation.com/product/1865.html "F 300") Coriolis flowmeter I. Common Error Types Meter Error (Fault, F): Indicates that the measuring instrument has malfunctioned and the measured value may no longer be valid. Function check (Check, C): The meter is in service mode or is performing some kind of function check. Out of Scope (Out of Specification, S): The instrument is operating outside the limits of the technical specification parameters, e.g. outside the process temperature range or the user setpoint. Maintenance Required (M): The instrument requires maintenance, but the measured value may still be valid. Second, diagnosis and repair steps View the diagnostic information: View detailed diagnostic information through the instrument's field display unit or web browser interface. This information typically includes the diagnostic event code, a short text description, and possibly a service number. Categorize Diagnostic Information: Categorize diagnostic information based on its weight (severity), typically into highest weight, high weight, and low weight. Access Remedy Information: View remediation information for each diagnostic event in the Diagnostics menu or Web browser interface. This information provides guidance for quickly correcting the problem. Execute Remedy: Perform the appropriate action based on the remedial action information, such as recalibrating the meter, replacing a defective part, or adjusting a setup parameter. Reboot the meter: After performing the remedial action, attempt to reboot the meter to clear possible temporary faults. Contact Technical Support: If the problem persists, it is recommended to contact Endress+Hauser's technical support team for further assistance. III. Examples of specific error fixes Communication Faults: Check the meter's communication settings and connecting cables to make sure they meet specifications. Reboot the meter's communication module or the entire system. Inaccurate measurement: Check the calibration status of the meter and recalibrate if necessary. Check that fluid conditions (e.g., temperature, pressure, flow rate, etc.) meet the meter's specifications. Sensor malfunction: Check the sensor for signs of damage or wear. Replace failed sensor components. Power supply failure: Check that the power supply voltage and current meet the specifications of the instrument. Replace faulty power supply components or check power supply line connections. IV. Preventive Measures Regular Maintenance: Perform regular maintenance and calibration of the meter according to the manufacturer's recommendations. Monitor Meter Status: Use the remote monitoring feature to monitor meter status and performance in real time. Train Personnel: Properly train operators and maintenance personnel to ensure they understand how the meter works and how to troubleshoot common problems.