scope:

This report is for multipath ultrasonic transit-time flow meters used for the measurement of natural gas. It may be used for the measurement of other gases in consultation with the meter manufacturer and a competent professional. Multipath ultrasonic meters have at least two independent pairs of measuring transducers (acoustic paths). Applications may include, but are not limited to, measurement of single-phase gas flow through production facilities, transmission pipelines, storage facilities, distribution systems and by end-use customers.