Krohne OPTISONIC 7300 Ultrasonic Flowmeter

Ultrasonic flowmeter for natural gas, process gas and utility gas applications


  • 2-path meter, for standard volume flow metering, independent of media properties
  • No maintenance, no pressure loss, large dynamic range
  • Flange: DN50…1000 / 2…40″, max. PN450 / ASME Cl 2500; also weld-in connections
  • 3 x 4…20 mA, HART®, Modbus, FF
  • Certifications: EN (1092-1): DN100…600. ASME (B 16.5): 4…24“.
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General information

Product type Flowmeter
Product family name OPTISONIC
Product positioning For natural gas, process gas and utility gas applications
Measurement principle Ultrasonic
Measured media Gases

Operating conditions

Process pressure max. 431 barg/
6266 psig
Process temperature -40…+180°C/


The Krohne OPTISONIC 7300 is a high-performance ultrasonic flowmeter that offers precise, reliable measurement of liquids in a variety of industrial applications. With its compact design and easy installation, the OPTISONIC 7300 is ideal for use in tight spaces or in remote locations.

The flowmeter utilizes state-of-the-art ultrasonic technology to accurately measure the flow of liquids, even in challenging conditions such as high pressure or temperature. Its intelligent software algorithms provide reliable measurement even in the presence of gas or solids in the liquid.

The OPTISONIC 7300 offers a range of features to make installation and maintenance quick and easy. It includes a color touchscreen display for easy setup and configuration, and its compact design allows for easy integration into existing systems.

In addition to its high performance and ease of use, the OPTISONIC 7300 is also extremely durable, with a rugged design that can withstand harsh industrial environments. This makes it an ideal choice for a wide range of applications, from process control to energy management.

Overall, the Krohne OPTISONIC 7300 is a top-of-the-line ultrasonic flowmeter that provides reliable, accurate measurement of liquids in a variety of industrial settings. Its compact design and easy installation make it a practical choice for any application, and its rugged design ensures long-lasting performance.


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