The OGT Flowmeters uses two ultrasonic flow metering technologies and a smart PLC to intelligently select which technology to use, based on the process conditions being measured. Constant metering is achieved regardless of solids and gas contamination. The changeover between the metering technologies is calculated with unique mathematical software, which enables exceptional measurement accuracy.
Time of flight, ultrasonic flow metering is used during low aeration periods with intelligent switching to Reflexor metering during heavy aeration and slugging, slurry or solid particle entrainment. OGT's time of flight ultrasonic flow meters have exceptional measurement accuracy, even with small levels of aeration. In the OGT system, this accuracy is used to calibrate a tandem Reflexor meter during the window when both meters are able to operate due to low aeration in the fluid. By calibrating the Reflexor to the time of flight at the point where time of flight is just failing to measure, the Reflexor becomes vastly more accurate than a standard Reflexor out of the box. Ordinarily, the change over point between these two technologies would be difficult to achieve, yet with the OGT system, an accurate and seamless changeover between the two metering technologies is achieved with unique mathematical software that enables accuracies that exceed the raw change over of both meters