Critical Technical Advantages
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Multivariable Measurement: The Prosonic Flow G 300 is an all-in-one solution. It measures volume flow, pressure, and temperature simultaneously. This allows the device to calculate corrected volume flow and mass flow internally, significantly reducing installation costs and potential leak points.
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Reliability in Wet Gas: Unlike many gas measurement technologies that fail when liquids are present, the sensor design of the Prosonic Flow G is specifically engineered to be insensitive to condensate. This ensures consistent and reliable data even in humid or “wet” gas applications.
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Advanced Safety Features: To protect personnel and equipment, the device features a pressure-rated sensor housing equipped with a rupture disc. This design safely redirects gas in the unlikely event of a primary sensor seal failure, limiting catastrophic safety risks.
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Heartbeat Technology: This integrated diagnostic suite allows for continuous self-monitoring and traceable verification of the device’s health without interrupting the process. It simplifies compliance with safety and quality regulations while extending calibration cycles.
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Unaffected by Gas Composition: The ultrasonic transit-time principle is inherently robust against changes in gas type. Whether measuring pure gases or complex, user-defined mixtures, the device maintains high accuracy across a wide range of molecular weights.
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Zero Pressure Loss: The full-bore design ensures that there is no constriction in the pipe. This prevents energy loss and eliminates the risk of clogging, which is common in orifice plates or vortex meters.
Detailed Technical Performance Matrix
| Specification | Technical Details and Ranges |
| Measured Variables | Volume flow, pressure, temperature, corrected volume flow, mass flow |
| Max. Measurement Accuracy | 0.5% (o.r.) for gas volume flow |
| Wetted Materials | Titanium Grade 2, 316L Stainless Steel |
| Nominal Diameter | DN 25 to 300 (1″ to 12″) |
| Process Pressure | Up to 100 bar (1450 psi) |
| Process Temperature | -50 to +150 °C (-58 to +302 °F) |
| Communication | HART, PROFIBUS PA/DP, FOUNDATION Fieldbus, Modbus RS485, EtherNet/IP, PROFINET |
| Power Supply | DC 16 to 35 V / AC 100 to 240 V |
Primary Applications
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Natural Gas Measurement: Monitoring flow in distribution and industrial burner supply lines where moisture may be present.
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Process Gas in Chemical Plants: Tracking gas consumption or production in reactors where compositions vary over time.
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Compressed Air Systems: Large-scale air flow monitoring where energy efficiency and low pressure drop are critical.
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Boiler Feed Gas: Providing compensated flow data for burner control to optimize fuel-to-air ratios.
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Vapor Recovery Units: Measuring gas flow in low-pressure recovery systems where condensates often collect in the piping.
