Permanent Gas Flow Meter for Hazardous Areas

The ultrasonic gas flow meter for operation in hazardous areas

The FLUXUS G809 is FLEXIM's dual channel ultrasonic clamp-on flow meter for bi-directional flow measurement of gases in hazardous areas (FM Class I, Div. 1 and ATEX, IECEx Zone 1 approved).

With its flameproof housing and the corrosion resistant transducers residing inside the rugged PERMAFIX mounting fixture, ensuring a permanent contact pressure and high mechanical stability, the FLUXUS G809 series is perfectly suited for every demanding industrial application.

The FLUXUS G809 gas flow meter allows for an inherently bi-directional gas flow measurement of operational and standard volume flows. As the transducers are mounted on the outside of the pipe wall, the system does not suffer from wear and tear or clogging, can't be a risk for leaks and will not cause any pressure drops inside the pipe.

Due to its matched and paired transducers as well as the internal temperature compensation (compliant to ANSI/ASME) the measurement system is drift free and zero stable ensuring accurate readings. The gas flow meter can be applied at inner pipe diameters ranging from 0.4 inch up to 83 inches (with no limitations on pipe wall thickness or material) and media temperatures from -40 °F up to 210 °F.

With up to two measurement channels, the FLUXUS G809 permanent gas flow meter can also be applied to difficult measurement points and is completely unaffected by gas density, viscosity and composition as well as temperature and pressure.  Even wet gas up to Liquid Volume Fractions of 5% can be measured.

Advantages

• Bi-directional flow measurement of liquids and gases in FM Class I, Div. 1 and ATEX / IECEx Zone 1 areas
• Very cost effective: No pipe works, No process shut-downs, Virtually maintenance-free
• Matched, paired and wet calibrated flow transducers (traceable certification to national standards)
• Excellent zero point stability and drift-free
• Wide turndown ratio
• Independent of pipe size, material, operating pressure and gas composition
• High tolerance to entrained solids and gas wetness
• Free of wear, tear and abrasion
• Not prone to clogging or corrosion
• No pressure loss or source of potential leaks and fugitive emissions

Applications

• Oil & Gas
  • Upstream / Offshore Solutions
    • Mass Flow Measurement of Natural Gas for Injection
    • Gas Flow measurement at a Separator Outlet
    • Wellhead Gas Flow Measurement
    • Flow Measurement within a Gas Lift System
  • Onshore / Shale Oil & Gas Solutions
    • Gas, Oil and Brine Flow Measurement at the Separator outlet
    • Wellhead Gas Flow Measurement
  • Underground Gas Storage & Processing
    • Flow Measurement during Gas Injection and Withdrawal
    • Flow and Concentration Measurement during Gas Dehydration
    • Flow Measurement at a Compressor Station
    • Accurate Salt Brine Flow Measurement for In-situ leaching of an Underground Gas Storage
    • Flow Measurement of Sour Gas
  • Oil & Gas Storage and Distribution
    • Flow Direction and Leak Detection Monitoring of Natural Gas
    • Gas Flow Measurement in a Medium Pressure Municipial Network
    • Gas Flow Measurement at an Odoriser Station
    • Gas Flow Measurement at an Underground Pipeline
    • Flow Measurement and Control at a Compressor Station
    • Flow Measurement of Natural Gas on Governor Stations
  • Refinery Solutions
    • Gas Flow Measurement at the main Fuel Gas Header
• Chemical Industry
  • Polymer Production
    • Flow Measurement of Ethylene
    • Gas Flow Measurement within Polypropylene Production
  • Base & Intermediate Chemicals
    • Flow Measurement of Hydrogen
  • Acid and Caustics Production
    • Flow Measurement of Gaseous Hydrochloric Acid during MDI Production

Technical Facts

Operating temperature of the transmitter

-22 °F...140 °F

Degree of protection

NEMA 4X / IP66 (Transmitter) Coating for Offshore usage

Quantities of measurement

volumetric flow rate, mass flow rate, flow velocity

Optional hazardous area classification

ATEX, IECEx Zone 1, FM Class I, Div. 1

Outputs

4 (various combinations of current, binary, Modbus and HART are available)

Communication Protocol

HART, Modbus

Media temperature

-40 °F ... 390 °F

Pipe diameter range

0.4 inch ... 83 inches

Flow velocity range

0.03 ... 115 ft/s

Measurement accuracy

±0.5 % of reading ±0.03 ft/s, field calibrated, ±1% of reading ±0.03 ft/s, NIST traceable

Repeatability

±0.15% of reading ± 0.03 ft/s

Additional Notes

240V or 24V DC power supply version of the transmitter available

360° view

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For the manual 360° view pull the image left or right

Downloads

FLUXUS G809

Technical Specification

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FLUXUS F/G80X - For Operation in Hazardous Areas

Brochure

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