Flow Measurement & Control


Process gases always under control

June 2012 Flow Measurement & Control

Krohne has introduced the Optisonic 7300 universal ultrasonic gas flowmeter for process gas applications to complete its portfolio of gas meters, ranging from compressed air to custody transfer applications for natural gas. The Optisonic 7300 provides an economic solution for gas flow measurement in process and auxiliary measurements in oil & gas refineries, the chemical and the petrochemical industry and is suitable for non-custody transfer natural gas applications. It can also provide its benefits in many other applications for example compressed air, mixed gas, steam or flue gas.

The instrument is a 2-beam ultrasonic flowmeter that provides excellent long-term measurement stability and repeatability, delivering high performance over a wide flow range. It can be calibrated either dry or by using air or natural gas. As standard, it uses titanium transducers which are better focused, equalising process fluctuations and avoiding acoustic feedback; stainless steel transducers are available on request. Built for long-term use, the unit features a maintenancefree 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. The Optisonic 7300 provides calculation to standard conditions by using the input of temperature and pressure sensors which can be directly connected to the device. The electronics also include diagnostics to validate the functions of the flowmeter and the process. Modbus, Foundation fieldbus and HART are included for field communication.

For more information contact John Alexander, Krohne SA, +27 (0)11 314 1391, [email protected], www.krohne.com



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