Variable-area flowmeter DS03 series

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The flowmeter and switch model DS03 works according to a modified variable area principle. The float is guided in an upward tapered measuring tube. The flowing medium moves the float in the flow direction. The upper edge of the float shows the momentary flow via a burnt in scale on the measuring glass. A Reed contact is mounted outside the meter in a sealed housing. When the float reaches the position of the Reed contact the switch will close. With higher flows the float moves further upward until it reaches a built-in float stop, still keeping the switch closed. This ensures a bistable switch function at any time. The Reed contact is adjustable over the full measuring range of the meter. Typical applications The variable area flowmeters and monitors DS03 are used to measure and monitor continuous flow rates of low-viscosity liquids or gaseous media. Areas of applications are: cooling systems engineering research and development