Flow measurement based on the vortex principle is well known for its robustness and reliability – a tried and tested technology for liquid and gas flow measurement. In addition Endress+Hauser’s new Prowirl 200 vortex flowmeters now detect moisture levels in steam.
Benefits of vortex measurement include the following:
• Long-term stability.
• Wet steam detection.
• Seamless system integration thanks to two-wire technology.
• Unaffected by shocks and vibration.
• Intrinsically safe.
Endress+Hauser has sold more than 300 000 Prowirl flowmeters since the technology was introduced 30 years ago; immunity to vibrations, mechanical shock and abrupt changes in temperature, account for its popularity – particularly in applications in the mining sector. They are also renowned for excellent long-term stability and the sensors are not subject to drift over time, ensuring optimal operating costs and high reliability.
Improving on the best
Now the 200 series Prowirl brings further improvements. The new generation harnesses two-wire technology to reduce costs during installation and enable devices to be replaced easily. Prowirl is an intrinsically safe, 4-20 mA instrument that can be installed even in Zone 0 hazardous areas. It has also been developed according to the IEC 61508 international standard for functional safety.
The Prowirl F 200 is able to measure steam and mass energy, warning if wet steam is in the line and even estimating the concentration. Wet steam is a safety concern as it can damage the equipment due to water hammer. It also affects efficiency as wet steam contains less energy. Therefore being able to detect wet steam is a unique and invaluable feature that guarantees the highest process safety and helps to keep operating costs to a minimum.
Case History 198: Cascade control overcomes valve problems.
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