Krohne Optiswirl 4200 vortex flowmeters

The Optiswirl 4200 vortex flowmeter is designed for the measurement of conducting and non-conducting liquids, gases and steam. The device is targeted at auxiliary and supply applications in various industries, such as internal monitoring of energy flows for saturated and super-heated steam or hot water, and heat metering applications. Areas of usage also cover steam boiler monitoring, burner consumption measurement or compressed air network monitoring, including FAD applications.

In addition to gross heat calculation for steam, the flowmeter includes net heat calculation for steam and condensate (hot water). With one temperature sensor integrated as standard, the device can be installed as heat meter in the feed line directly connected with an external temperature sensor in the return line. The gross and net heat calculation can be fed into a DCS to support advanced energy management.

Temperature and pressure compensation options are available to enable calculation of standard flow volume under fluctuating pressures and temperatures (online density compensation). Both compensation functions are based on NIST standards (for gas) and IAPWS (for steam). Another advantage is that by combining three measurements (flow, temperature and pressure) in one 2-wire device, the line has to be opened only once for installation.

In addition to the standard range, a version with integrated reduction of nominal diameter up to two sizes is available, as well as a remote version with a connection cable up to 50 m. A dual version with two independent sensors and two signal converters is also available.