The Condurix sensor from Fafnir supplies information on filling levels of tanks with all electrically conductive liquids of $ 1 µS cm. The sensor works according to the potentiometric measuring principle. By means of the micro-controlled sensor electronics the current impulses are transmitted through the sensor electrode which is electrically insulated from the tank or external tube. This leads to a linear voltage drop on its electrical resistance. If the sensor electrode is dipped into a conductive liquid, an electrical connection to the environment is created. The electrical potential is proportional to the filling level. The product has a 2-wire terminal (4…20 mA) and measures in the millisecond range with a precision of ±1 mm. The measuring range is freely adjustable for the total probe length and the result is independent of pressure, temperature and density.
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