Ultrasonic Flowmeters for Gases
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FLUXUS® G Non-Invasive Gas Flow Measurement Natural Gas Extraction Offshore Gas Transmission Storage Chemical Industry Petrochemical Industry Manufacturing Industry External Measurement of Internal Flow

Non-Invasive Gas Flow Measurement with FLUXUS® G FLEXIM’s ultrasonic gas flow meters use the proven clamp-on transit-time correlation technique also employed for the F series liquid meters. Special ultrasonic transducers are simply clamped onto the outside of the pipe and never come in contact with the gas. The FLUXUS® G series contains a broad variety of transmitters and transducers: from basic models for standard applications up to robust measuring systems for offshore use or for use in hazardous areas. 2 Our tradition is innovation Ever since its inception, FLEXIM has been among the...

Adaptive Signal Processing In order to maximize the signal to noise ratio, an optimized transmission process featuring multipulse excitation was developed. The versatile measurement algorithm automatically adapts to the varying application conditions. Thus, disturbing factors such as beam dispersal and structure-borne pipe noise can be effectively compensated. Wide dynamic range amplifier The FLUXUS® G measurement amplifier offers a uniquely wide dynamic range by including various frequency filters which are automatically tuned to the appropriate transducer frequency. This is particularly...

Superior Functionality FLUXUS® G represents the ideal solution for non-invasive gas flow measurement. FLEXIM’s non-invasive technology is an advantageous and cost-effective alternative to conventional methods, particularly with chemically aggressive, poisonous or high pressure media. With their extremely wide turn-down ratios, the instruments of the FLUXUS® G series register even the smallest flows. Non-invasive measurement ➔ o contact with the medium, there­ ore N f no possibility of chemical attack. No need for expensive special materials (sour gas applications for example) ➔ o wear and...

No moving mechanical or pressure loaded parts ➔ Approved for explosion hazard areas ➔ Safe and maintenance-free ➔ easurements can be made M even at high operating pressures ➔ nharmed by pressure peaks (for U example at the onset of condensation) Transducers are mounted on the pipe ➔ Very cost-effective installation ➔ asy installation without process E interruption ➔ No welding work ➔ No risk of leakage ➔ ost-advantageous, especially in C high-pressure applications and for large pipe diameters ➔ bsolutely no pressure loss, A thus low operating costs ➔ o pipe diameter reduction, N therefore...

Technical Data The Transit Time Difference Correlation Principle makes use of the fact that the time of flight of an ultrasonic signal is affected by the flow velocity of the carrier medium. Like a swimmer working his way across a flowing river, an ultrasonic signal travels slower upstream than Ultrasonic flow meters natively measure the actual volumetric flow. The transmitters feature an integrated flow computer which makes use of external temperature and pressure data to convert the actual volumetric flow into standard volume (mass) flow based on ISO 12213-1. In principle, flow...

Applications _____ Oil and Gas Chemical Industry M easurement on natural gas pipelines Measurement of synthesized gas Measurement in natural gas storage installations (storage and extraction) Gas measurement in the plastics production process (high pressure) Management of gas storage facilities (efficiency maximization, performance optimization, salt cavern leaching) Measurement of ethylene, helium and nitrogen Regulation and control of drilling sites in natural gas extraction Control of compressor stations Manufacturing industry Dimensioning of extraction sites and drilling probes...

The Transmitters A FLUXUS® G for all purposes Guaranteed user friendly Whether for portable use, for rackmounting or for permanent installation, or even for offshore use: FLEXIM offers the appropriate FLUXUS® G to meet each measurement challenge. ATEX and FM certified measurement systems for use in hazardous areas are available. Versatile process interfaces assure optimal integration into the user’s process. No complex and elaborate instructions are required in order to use the intuitively structured menu of the FLUXUS® G. The pipe and material parameters are easily entered, thanks to the...

The Portable All-round Meters FLUXUS® G601 (CA Energy) FLUXUS® G608 The Multi-function Meters FLUXUS® G704 FLUXUS® G709 The Explosion-proof Experts FLUXUS® G800 FLUXUS® G801 The highly mobile and versatile G601 is perfectly suited for temporary usage during servicing, maintenance, check metering or as back-up for short term replacement of failed meters. As product variant G601 CA Energy, the portable meter is the ideal instrument when compressed air and thermal energy flows have to be measured. The G608 goes even further and is ATEX as well as FM approved for its usage in explosion hazard...

The Mounting Fixtures Two transducers types providing a uniquely wide application range All FLUXUS G transmitters support both Lamb wave and shear wave transducers at all transducer frequencies. In this way the measuring system can be optimized to the process. The Lamb wave transducer is ideal for high velocity gas measurement as found in natural gas pipelines. The shear wave transducer covers a wide range of pipe diameters and wall thicknesses. It is the best choice for mobile measurement and application diagnostics, as well as for thick-wall pipes. ® 10 Robust construction Paired,...

Our application engineers will be glad to offer you expert advice. Call for an application review today! Robust transducer mounting fixtures The VARIOFIX mounting fixtures hold the transducers safely in place and ensure continuous and constant contact pressure between the transducers and the pipe surface, even if temperature variations cause the pipe diameter to change. Made of stainless steel, they are corrosion-proof and wear resistant. The transducers can be removed and remounted onto the VARIOFIX rail without readjustment. The offshore mounting rail VARIOFIX C is made to meet the...