GE DigitalFlow GF868 Ultrasonic Gas Flowmeter - Image 1
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GE DigitalFlow GF868 Ultrasonic Gas Flowmeter
GE DigitalFlow GF868 Ultrasonic Gas Flowmeter - Image 2
GE GESSIO-1E Input/Output Module
GE GESSIO-1E Input/Output Module
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GE GJR5253100R1260 BCU05G Control Unit
GE GJR5253100R1260 BCU05G Control Unit

GE DigitalFlow GF868 Ultrasonic Gas Flowmeter

Technical Specifications

  • Flow Velocity Range: ±0.03 to 85 m/s (bidirectional measurement)
  • Accuracy: ±1.0% to ±2.0% (depending on the number of acoustic paths and gas type)
  • Repeatability: ±0.2%
  • Rangeability: ≥2750:1
  • Response Time: Typically <100 ms
  • Pipe Diameter Range: DN15 to DN6000 (depending on sensor type)
  • Process Connection: Flanged, threaded, or clamp-on (determined by configuration code)
Category:
Description
  • Material: Sensor housing made of stainless steel 316L; pipe material options include carbon steel and stainless steel
  • Protection Rating: IP65/IP67 (depending on enclosure configuration)
  • Operating Temperature:
    • Media temperature: -196°C to +260°C (depending on sensor type)
    • Ambient temperature: -40°C to +85°C (depending on transmitter configuration)
  • Pressure Range: Up to 40 MPa (depending on sensor and process connection)
  • Output and Communication:
    • Analog output: 4 to 20 mA (up to 4 channels, isolated)
    • Digital interfaces: RS485/Modbus RTU, HART, Profibus DP, FOUNDATION Fieldbus
    • Supported protocols: MID, AGA-9, ISO 17089
  • Power Supply: 100 to 240 VAC or 24 VDC; power consumption <20 W

Functional Characteristics

  • High Precision Measurement: Provides accurate flow rate, volume flow, and mass flow data, unaffected by gas composition changes.
  • Robust Design: Built with high-quality materials to withstand harsh industrial environments, including extreme temperatures and pressures.
  • Versatile Application: Suitable for measuring a wide range of gases, including multi-component and variable-composition gases.
  • Advanced Signal Processing: Uses cross-correlation time-difference method to calculate flow velocity, ensuring reliable performance even in unstable flow conditions.
  • Easy Integration: Supports multiple communication protocols for seamless integration with existing control systems.
  • Remote Monitoring: Equipped with a remote display terminal (RPT) for convenient data viewing and system configuration.
  • Low Maintenance: No moving parts, no orifices, or conduits, and adapts to gases containing impurities and moisture, reducing the need for regular maintenance.

Application Scenarios

  • Flare Gas Monitoring: Measures flare gas emissions in oil and gas refineries, petrochemical plants, and waste treatment facilities to ensure compliance with environmental regulations.
  • Natural Gas Trade Metering: Provides accurate flow data for natural gas custody transfer applications, supporting fair and transparent transactions.
  • Industrial Gas Process Control: Monitors gas flow in various industrial processes, such as steel production, chemical manufacturing, and power generation, to optimize efficiency and reduce costs.
  • Energy Management: Tracks gas consumption in energy-intensive industries, helping to identify energy-saving opportunities and improve overall energy efficiency.
  • Emission Monitoring: Measures greenhouse gas emissions to support carbon management and reduction initiatives.
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