REAL-TIME CONDITION BASED MONITORING (CBM) BASED ULTRASONIC METER (USM) ACCURACY PERFORMANCE DETECTION AND NOTIFICATION

摘要

A system includes a control system and a field device. The control system is configured to communicate data with the field device. The field device determines a baseline calibration and a characteristic curve for a process fluid flowing through the field device. The field device monitors an inline condition of the process fluid. The field device determine whether a deviation in a measurement accuracy for a fluid profile is detected according to inline evaluation criteria. The field device calculates a flow rate of the process fluid using a last valid characteristic curve.