Critical Technical Advantages
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Loop-Powered (2-Wire) Efficiency: Unlike many ultrasonic meters that require a dedicated power supply, the 92F is loop-powered. This significantly reduces installation costs and simplifies integration into existing 4-20 mA control loops, making it an attractive choice for plant upgrades and retrofits.
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Full-Bore Design: The meter features an unobstructed flow path with no moving parts or internal restrictions. This ensures there is zero additional pressure loss in the system and eliminates the risk of clogs or mechanical wear, which is vital for maintaining process efficiency in high-volume chemical lines.
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Industry Material Compliance: The 92F is fully compliant with NACE MR0175 and MR0103 standards. This makes it suitable for “sour” environments where stress corrosion cracking from hydrogen sulfide (H2S) is a concern, ensuring the structural integrity of the meter in aggressive petrochemical applications.
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Independent Measuring Principle: The measurement accuracy is unaffected by the physical properties of the liquid, including pressure, density, temperature, conductivity, and viscosity. This versatility allows the same meter type to be used across a wide variety of fluid applications within a single facility.
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Compact or Remote Mounting: The device can be configured as a compact unit for standard installations or as a remote version if the sensor needs to be placed in a high-vibration or difficult-to-access area, while the transmitter is mounted in a more convenient location.
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Automatic Data Recovery (HistoROM): For simplified servicing, the device features an integrated data storage concept. If the transmitter electronics need to be replaced, the process data and device parameters are automatically reloaded, minimizing downtime and configuration errors.
Detailed Technical Performance Matrix
| Specification | Technical Details and Ranges |
| Measured Variables | Volume flow, sound velocity, flow velocity |
| Nominal Diameter | DN 25 to 300 (1″ to 12″) |
| Measurement Accuracy | ±0.3% to ±0.5% (o.r.) depending on calibration |
| Medium Temperature | –40 to +200 °C (–40 to +392 °F) |
| Max. Operating Pressure | PN 40 / ASME Class 300 |
| Transmitter Type | Loop-powered (2-wire) 92 series |
| Material Compliance | NACE MR0175 / MR0103 |
| Communication | HART, PROFIBUS PA, FOUNDATION Fieldbus |
Primary Applications
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Chemical Process Control: Precise dosing and transfer of organic and inorganic chemicals where conductivity may be low or non-existent.
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Petrochemical Refining: Measuring refined products, solvents, and intermediate hydrocarbons in “sour” gas or high-temperature environments.
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Solvent Recovery: Monitoring the flow of volatile organic compounds (VOCs) in recovery and distillation units.
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High-Purity Water: Measurement of demineralized or deionized water for boiler feed or pharmaceutical utilities.
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Loading & Unloading: Tracking the transfer of liquids between storage tanks and transport vehicles in hazardous areas.
