Product Overview Flowmeters - KROHNE - #49

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Flow controllers 49 Highlights DW 181–DW 184: • One or two electric limit switches • For horizontal or vertical pipelines (DW 181–183) • Mounting type for horizontal pipelines (DW 184) • Depending on design, available with screw-type, fl ange or mounting fl ange connectors • Two different fl ow displays (G and A) to choose from (DW 181–183) • High-temperature design up to max. 300 °C • Ex- version (EEx d) • Tropical version with Amphenol sockets and a double coating of epoxy on device • Local indication without power supply, can be used as variable area fl owmeter Industries: • Power plants • Steel • Mining • Petrochemical • Oil and gas • Chemical • Food and beverage • Water and wastewater The measuring principle With the fl ow controllers DW 181–184, the fl uid fl ows against a springmounted baffl e. The position of the baffl e changes with increasing fl ow. A built-in magnet transmits the position to the display and also activates the limit switch. Flow controllers With the fl ow controllers DW 181, 182, 183 and 184, KROHNE offers the ideal fl ow control solution for virtually any process connection. Each device is equipped with a limit switch (dry reed contact) and it is possible to install another switch at any time. For greater switching energies of up to 1200 VA, an additional amplifying relay can be installed. Maximum freedom, even when it comes to the right display: For the DW 181 to 184 versions, there are two different choices available with the G and A displays. The G display enables visual monitoring of the fl ow via a 10-point scale. The switching point can be changed at any point along the way. The A display allows a more accurate reading of the fl ow value (e.g. in l/h or in m3/h) via a scale. With this display, the switching points can be set even when there is no fl ow. Always the right choice: Flow controllers DW 181, 182, 183, and 184