The SwirlMaster and VortexMaster swirl and vortex flowmeters measure volume, mass, and energy flow in a single device. SwirlMaster comes as a standard (FSS430) or as an extended version (FSS450). The swirl technology enables very short upstream and downstream piping requirements that save installation costs and enable high-accuracy flow measurement in tight spaces. The FSS450 version has functions that are normally found in flow computers such as steam-power calculation—with and without condensation return—and the ability to receive signals from other transmitters for density, temperature, and pressure via an analog 4–20 mA input. The standard FSS430 omits the flow computer algorithms, but provides an analog output with HART communication. Both models feature the company’s universal graphical display (human-machine interface), digital outputs—configurable as pulse, contact, and frequency output—and an optional integrated temperature sensor.
The VortexMaster follows the same philosophy with a lower cost entry-level version (FSV430) for simple applications and the extended version (FSV450) that offers the same functions as the SwirlMaster FSS450. Both versions are available in a remote design with a cable length of up to 30 meters (100 feet).
Both devices also meet further NAMUR requirements such as NE21 for electromagnetic compatibility or NE43 for current output and contact outputs. This makes the VortexMaster and the SwirlMaster suited for the chemical industry. Other applications include monitoring steam flows. The devices have no moving mechanical parts and accuracy with ±0.50 percent of rate for the SwirlMaster and ±0.65 percent (liquid) or ±0.9 percent of rate (gas) for the Vortex Master. Both have an available explosion-proof design and stainless steel housing option.