Key Specifications
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Maximum measurement tolerance
Liquid volume flow: ±0.75%
Gas/steam volume flow: ±1.00%
Saturated steam mass flow: ±1.7% (temp. compensated); ±1.5% (temp./pressure compensated)
Superheated steam/gas mass flow: ±1.5% (temp./pressure compensated); ±1.7% (temp. compensated + external pressure compensation)
Liquid mass flow: ±0.85% -
Operational range
Liquids: 0.1 to 540 m³/h (0.061 to 320 ft³/min)
Reference medium: water at 1 bar a, 20 °C (14.5 psi a, 68° F)
Steam/gases: 0.52 to 7300 m³/h (0.31 to 4300 ft³/min)
Reference medium: steam at 180 °C, 10 bar a (356 °F, 145 psi a); air at 25 °C, 4.4 bar a (77 °F, 63.8 psi a) -
Temperature range
Standard: –40 to +260 °C (–40 to +500 °F)
Optional extended range: –200 to +400 °C (–328 to +752 °F)
Custom range (upon request): –200 to +450 °C (–328 to +842 °F) -
Maximum operating pressure
PN 40, Class 300, 20K
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Contact materials
Flow tube: 1.4408 (CF3M)
DSC sensor: 1.4404/F316/F316L
Process connections: 1.4404/F316/F316L
Applications
The Prowirl R series specializes in low-flow measurement, delivering reliable performance for energy management systems. Its PremiumCal calibration ensures exceptional accuracy for optimal plant efficiency. Featuring true loop-powered operation, the Prowirl R 200 allows economical integration into existing setups while maintaining superior safety in hazardous environments. Continuous monitoring via Heartbeat Technology guarantees uninterrupted process security.
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Ideal measurement solution for wet/saturated/superheated steam, gases & cryogenic liquids
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Specifically engineered for low-flow or reduced-flow applications
Key Features
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Built-in pipe diameter reduction by 1-2 sizes
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Compatible with piping up to DN 250 (10″)
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Adjustable pressure sensor positioning
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Display module with data transmission capability
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Durable two-chamber housing design
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Global safety certifications (SIL, hazardous areas)
Advantages
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Simplified energy monitoring – built-in temperature and pressure measurement for steam/gas
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Reduced installation costs – eliminates need for pipe modifications during downsizing
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Consistent precision at Re 10 000 – industry-leading vortex meter linearity
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Reliable performance – stable capacitive sensing technology
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Flexible connectivity – dedicated wiring compartment with multiple Ethernet choices
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Maintenance-free operation – sealed unit design
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Continuous diagnostics – integrated Heartbeat verification
