Ultrasonic Gas Flowmeter Delivers Long-Term Measurement Stability and Repeatability


OPTISONIC 7300 provides an economic solution for gas flow measurement in process and auxiliary measurements in oil and gas refineries, the chemical and the petrochemical industry and is the measurement of choice for non custody transfer natural gas applications. It also provides benefits to many other applications such as (compressed) air, mixed gas, steam or flue gas.

The OPTISONIC 7300 is a 2-beam ultrasonic flowmeter that provides excellent long term measurement stability and repeatability. Class 1, Div 1 approved, it delivers high performance over a wide bi-directional flow range of ± 30 m/s (± 90 ft/s) with 1% accuracy. As standard, it uses titanium transducers which are better focused, equalizing process fluctuations and avoiding acoustic feedback; stainless steel transducers are available on request. Built for long-term use, the OPTISONIC 7300 features a maintenance free full bore flow sensor and an overall sturdy and robust construction with no cables or sensitive parts exposed. The maintenance free design with no moving parts in the flow sensor and the wide range of applications make using the device particularly cost-effective. In many applications process gas volume is required at standard conditions.



  • provides long-term measurement stability & repeatability
  • wide bidirectional flow range of ±90 fps with 1% accuracy
  • uses titan transducers
  • maintenance-free full bore flow sensor
  • provides calculation to standard conditions
  • electronics include diagnostics to validate functions
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