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New vortex flowmeter from Krohne

Krohne has introduced a new vortex flowmeter for the measurement of conducting and non-conducting liquids, gases and steam.

The Optiswirl 4200 is targeted at auxiliary and supply applications in various industries, such as internal monitoring of energy flows for saturated and superheated 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 Optiswirl 4200 includes net heat calculation for steam and condensate (hot water) as well. 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 also available for the flowmeter to enable calculation of standard flow volume under fluctuating pressures and temperatures (online density compensation). Both compensation functions are based on the standards of NIST (for gas) respectively 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 sensor range, a version with integrated reduction of nominal diameter up to two sizes is now available for space-saving installations and large measuring spans.

The remote version Optiswirl 4200 F with field housing converter is available with connection cable up to 50m/164ft. A dual version with two independent sensors and two signal converters is also available for multiproduct pipelines, redundant measurement or increased safety demands.

Enhancements have also been made on the electronics side: equipped with new AVFD function (Advanced Vortex Frequency Detection), the newly developed signal converter VFC 200 of the flowmeter features advanced signal processing and filtering. Redundant data management prevents loss of calibration and configuration data when changing electronics or display.

By default, all Optiswirl devices are wet-calibrated at factory (traceable to international standards) and pre-set to match customer specifications. OPTISWIRL 4200 also comes with an installation wizard to ease installation; eg in a steam application it will only show related settings.