FLUXUS® G______

Non-Invasive Gas Flow Measurement

Gas Storage Facilities______

Gas Transmission ______

Natural Gas Extraction______

Chemical Industry______

Petrochemical Industry______

Offshore ______

Manufacturing Industry ______

Measure from outside what’s flowing inside

______

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Our tradition is innovation______

Ever since its inception, FLEXIM has been among the pioneers in the field of ultrasonic flow measurement. Many years of application experience combined with innovative concepts and solutions have allowed FLEXIM to extend the scope of the ultrasonic technology to non-invasive measurement of gases.

Now, with the FLUXUS® G series, FLEXIM sets a new standard. Special transmission technology combined with powerful software algorithms and intelligent adaptive signal processing gives these instruments the dependability you have come to expect from FLEXIM.

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.

Non-Invasive Gas Flow Measurement with FLUXUS® G

_____

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Adaptive Signal Processing______

In order to maximize the signal to noiseratio, an optimized transmission processfeaturing multipulse excitation was developed. The versatile measurementalgorithm automatically adapts to thevarying application conditions. Thus,disturbing factors such as beam dispersaland structure-borne pipe noise can beeffectively compensated.

The FLUXUS® G series instruments usedigital signal processing. This enablesthem to adapt easily to a great variety ofmeasuring tasks. Up to 1000 raw signalsper second are transmitted for signal processing and analysis.

FLEXIM's signal processing algorithmsreflect many years of experience inextracting desired signals and rejectingunwanted noise signals. Thus, even weaksignals of only a few μV are reliably detected and processed.

Wide dynamic range amplifier______

The FLUXUS® G measurement amplifieroffers a uniquely wide dynamic range byincluding various frequency filters whichare automatically tuned to the appropriatetransducer frequency. This is particularlyadvantageous in the case of clamp-on ultrasonic gas flow measurement, whichhas to contend with very low signal levels.

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FLUXUS® G represents the ideal solutionfor 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. Withtheir extremely wide turn-down ratios, the instruments of the FLUXUS® G seriesregister even the smallest flows.

Non-invasive measurement______

➔ No contact with the medium, therefore no possibility of chemicalattack. No need for expensive special materials (sour gas applications for example)______

➔ No wear and tear, even with high flow velocities or with gas containingparticles______

➔ No clogging of small bore impulselines with deposits, condensate, inhibitors, oil vapours, dust (as happens when using impulse lines in the measuring system)______

➔ Insensitive to dust and humidity______

Superior Functionality

_____

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Transducers are mounted on the pipe______

➔ Very cost-effective installation______

➔ Easy installation without processinterruption______

➔ No welding work______

➔ No risk of leakage______

➔ Cost-advantageous, especially inhigh-pressure applications and forlarge pipe diameters______

➔ Absolutely no pressure loss, thus low operating costs______

➔ No pipe diameter reduction, therefore no pipe clogging______

No moving mechanical or pressure loaded parts______

➔ Safe and maintenance-free______

➔ Measurements can be made even at high operating pressures______

➔ Unharmed by pressure peaks (forexample at the onset of condensation)______

Precise, bi-directionalflow measurement withhigh measurement dynamics______

➔ Even minute flows are measurable______

➔ Measurement is unaffected by gas density, viscosity and composition,dust, humidity, temperature or pressure______

➔ Not sensitive to velocity peaks, swirling flows or transverse flows______

➔ Long-term stable measurement results______

➔ High measurement rate, fast response time______

➔ ➔ Approved for explosion hazardareas

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Ultrasonic flow meters natively measurethe actual volumetric flow. The transmitters feature an integratedflow computer which makes use of external temperature and pressure data to convert the actual volumetric flow intostandard volume (mass) flow based on ISO 12213-1.

In principle, flow measurement is possibleon all types of gases. However, whenmeasuring on metal pipes, a certain minimum pressure is required, dependingon the composition of the gas and the pipe material. Plastic pipes will supportoperation at atmospheric pressure.

Our application engineers will be pleased to advise you.

Technical Data_____

The Transit Time Difference Correlation Principle makes use of the factthat the time of flight of an ultrasonic signal is affected by the flow velocity of the carrier medium. Like a swimmer working his way acrossa flowing river, an ultrasonic signal travels slower upstream than down-stream.Our instruments work according to this transit-time principle: an ultra-sonic pulse is sent downstream through the medium, another pulse issent upstream. By measuring the transit-time difference, the flow velocity can be determined. The volumetric flow is then calculated out of the flow velocity and the pipe parameters.

General Technical Data__________________________________________________________________________________________

Measuring principle: Transit time difference correlation principle__________________________________________________________________________________________

Flow velocity: (0.01 to 35) m/s, pipe size dependent__________________________________________________________________________________________

Repeatability: 0.15 % of reading ± 0.01 m/s__________________________________________________________________________________________

Accuracy (given a fully Volume flow:developed rotationally ± 1% to 3 % of reading ± 0.01 m/s, depending on the application symmetric flow profile) ± 0.5 % of reading ± 0.01 m/s with field calibration__________________________________________________________________________________________

Measurable gases: Ratio of the characteristic acoustic impedance of the pipe wall material to that of the gas

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Applications_____

Oil and Gas

______

Measurement on natural gas pipelines______

Measurement in natural gas storage installations (storage and extraction)______

Management of gas storage facilities (efficiency maximization, performance optimization, salt cavern leaching)______

Regulation and control of drilling sitesin natural gas extraction______

Control of compressor stations______

Dimensioning of extraction sites and drilling probes (efficiency maximization)______

Measurement of ethane, propane and hydrogen______

Measurement of sour gas______

Measurement for the gas supply industry______

Measurement of injection gas in the petroleum industry______

Allocation and checkmetering______

Inventory control / Lost and unaccounted for gas analysis______

Measurement of injection media in gas processing (monoethylamine, TEG, etc.)with upgraded instrument. Ask FLEXIM!______

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Chemical Industry

______

Measurement of synthesized gas______

Gas measurement in the plastics production process (high pressure) ______

Measurement of ethylene, helium and nitrogen ______

Manufacturing industry

______

Measurement of compressed air______

Service

______

Supervision of permanently installed meters______

Error diagnostics______

Service and maintenance______

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A FLUXUS® G for all purposes______

Whether for portable use, for rack-mounting or for permanent installation, or even for offshore use: FLEXIM offersthe appropriate FLUXUS® G to meet eachmeasurement challenge. ATEX and FMcertified measurement systems for use inhazardous areas are available. Versatileprocess interfaces assure optimalintegration into the user's process.

Guaranteed user friendly______

No complex and elaborate instructionsare required in order to use the intuitivelystructured menu of the FLUXUS® G. The pipe and material parameters areeasily entered, thanks to the internalmedia and materials data bank. Explosion-proof instruments can be operated without opening the housing andwithout requiring any additional devices.

The Transmitters

_____

Technical Data__________________________________________________________

Operating temperature:__________________________________________________________

Measuring channels:__________________________________________________________

Protection degree acc. to EN60529:__________________________________________________________

Explosion protection in:__________________________________________________________

Inputs:

__________________________________________________________

Qutputs:

__________________________________________________________

Calculation of the standard volume flow according to ISO 12213-1:__________________________________________________________

Communication interface:__________________________________________________________

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The Portable All-round MeterFLUXUS® G601

Unmatched in performance, this handy andversatile instrument is ideal in support of service and maintenance activities. It may also be used for the control or even the temporary replacement of permanently installed meters.

–10 °C to 60 °C

2

IP65

—

Standard: —Multifunctional: 2 x current, 1 x voltage,

1 x temperature

Standard: 2 x current, 2 x binaryMultifunctional: 4 x current, 2 x binary,

1 x frequency

Yes

The Multi-function MetersFLUXUS® G704 / FLUXUS® G709

Permanently installed and freely configurable:The FLUXUS® G704 is designed for permanentinstallation. With its range of electrical inputsand outputs, it can handle a variety of processparameters. Although technically identical tothe G704, FLUXUS® G709 is designed for permanent installation in 19" rack systems.

–20 °C to 60 °C

1 or 2

G704: IP65 G709: IP20

ATEX Zone 2, FM Class I Div II for G704

Maximum 4. Available are: temperature (Pt 100 / Pt 1000), current, voltage

A variety of combinations are available fromthe following: current (0/4 mA to 20 mA), voltage, frequency, pulse, alarm

Yes

HART

The Explosion-proof ExpertsFLUXUS® G800 / FLUXUS® G801

FLUXUS® G800 and G801 are ATEX certified for use in hazardous areas. The especiallyrobust G801 is completely seawater-resistantand therefore ideal for offshore applications.

–20 °C to 50 °C

1 or 2

IP66

ATEX Zone 1 and 2

—

1 current output, 1 binary output (OC). Also available: 1 or 2 binary outputs (relay), 1 binary output (OC) and 1 current output

Yes

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_________________________________________________________________________________________________________________________________________________________________________

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Two transducers types providing a uniquely wideapplication range ______

All FLUXUS® G transmitters support bothlamb wave and shear wave transducers atall transducer frequencies. In this way themeasuring system can be optimized to theprocess. The Lamb wave transducer isideal for high velocity gas measurement asfound in natural gas pipelines. The shearwave transducer covers a wide range ofpipe diameters and wall thicknesses. It’sthe best choice for mobile measurementand application diagnostics, as well as for thick-wall pipes.

Robust construction ______

All FLEXIM clamp-on transducers arewatertight and especially made for use in harsh industrial environments. Thetransducer housings are made of PEEK or PPSU with stainless steel protectioncaps. Robust construction and ruggedwiring guarantee long-term stability andmeasuring reliability.

Paired, calibrated transducers______

Each pair of transducers has been wet-flow calibrated at the factory. All calibration data is stored in a transducer-resident non-volatile memory and is automatically transferred to the trans-mitter upon connection. Consequently, parameterization errors are eliminatedand there is never a need for a zeroadjustment.

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The Mounting Fixtures_____

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Robust transducer mounting fixtures______

The Variofix mounting fixtures hold thetransducers safely in place and ensurecontinuous and constant contact pressurebetween the transducers and the pipesurface, even if temperature variationscause the pipe diameter to change. Madeof stainless steel, they are corrosion-proofand wear resistant. The transducers canbe removed and remounted onto theVariofix rail without readjustment.

The offshore mounting rail is made tomeet the highest operational demands –right down to the very last bolt. The rail is seawater-proof and providesyour transducers the highest protection they deserve.

Our application engineers will be glad to offer you expert advice. Call for an application review today!

General Technical Data of the Transducers____________________________________________________________________________________________

Application range*: Shear wave transducers: Transducers available for diameters from 15 to 1100 mm. A minimal pipe wall thickness is required.____________________________________________________________________

Lamb wave transducers: Transducers available for diameters from 7 to 1600 mm and wall thicknesses from 0,5 to 23 mm. Each transducer type is assigned to a given wall thickness range.

_____________________________________________________________________________________________

Operating temperature: Gas temperature and ambient temperature: between –40 to 200 °C,depending on the transducer type.

_____________________________________________________________________________________________

Use in explosion Transducers for ATEX Zone 1 and 2 as well as for FM Div 2hazard area: available_____________________________________________________________________________________________

Explosion protection Depends on the transducer type and on the atmosphere type. temperature: The explosion protection range is usually wider than the operating

temperature range._____________________________________________________________________________________________

Protection degree IP 56, IP 65, IP 67, IP 68acc. to EN60529: ____________________________________________________________________________________________

Material: PPSU or PEEK with stainless steel caps_____________________________________________________________________________________________*: the specified range is valid for natural gas in steel pipes,

under the conditions defined in the specification sheets.

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Since 20 years FLEXIM has been an active leader in many areas of processinstrumentation in both national andinternational markets. In addition to non-invasive flow measurement systems,FLEXIM specializes in innovative onlineprocess analysis using ultrasonic technology and refractometry.

Year after year, the Berlin based companycontinues its substantial investment inresearch and development in order tomaintain and further improve its positionas an industry leader. As a result, ourcustomers benefit greatly from our cutting edge patented technology.

Competent and professional associates in our sales offices and regional head-quarters in Europe and overseas ensurethe worldwide distribution of FLEXIM’sproven technology and guarantee youqualified service.

FLEXIM_____

A short portrait

FLEXIM GmbHBerlin, GermanyTel. +49 30 93 66 76-60Fax +49 30 93 66 76-80info@flexim.dewww.flexim.com

FLEXIM AMERICAS CorporationHeadquarters250-V Executive DriveEdgewood, NY 11717 USAPhone: (631) 492-23 00Fax: (631) 492-21 17Toll free: 1-888-852-7473(North America only)usinfo@flexim.comwww.flexim.com

FLEXIM Instruments Asia Pte LtdSingaporePhone: +65 67 94-53 25Fax: +65 68 62-28 36asia@flexim.com

Shanghai, ChinaPhone: +86 (21) 649 575 20shanghai@flexim.com

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